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TSS Logs for Sony Television Products BRAND MODEL Chassis

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1. does need adjustment then follow steps 1 to 4 below q V SIZE 1 Receive a signal of 62dBuV 75 ohm terminated via the tuner antenna socket 2 Connect a voltmeter to pin1 of TU101 print side of A Board or to the AGC pin of CN001 mount side of A Board VILIN 3 Confirm that the AGC voltage is 3 5volts 0 3volts 4 If adjustment is required then re adjust the AGC variable resistor located at the top rear of the FRONTEND to obtain RRECTION a voltage of 3 5V 0 3V en ya H CENTRE PIN AMP a pea PIN PHASE Print side of A board CORNER PIN I D 2 e 20 Destination ADEKR 4 2 TEST MODE 1 Test Mode 1 is available by pressing the TEST button once OSD T appears The functions described below are available by selecting the indicated keys The T is released automatically after each command is executed Destination ADEKR Auto Shutoff Enable Disable Rotation ON OFF CRT 4 3 lt gt 16 9 Display TV status Velocity Modulation VM OFF ON test KEY T MODE FUNCTION volume volume maximum volume Picture minimum picture Picture maximum picture Picture minimum colour up colour maximum colour down colour minimum G2 adjustment Re initialise NVM Select Dual A sound Select Dual B sound
2. Select Mono sound Select Stereo sound Set NVM as non virgin Set NVM as virgin brightness bright brightness maximum brightness dark brightness minimum hue purplish hue purplish hue greenish hue greenish sharpness sharp sharpness maximum sharpness soft sharpness minimum balance left balance full left balance right balance full right treble up treble maximum treble down treble minimum bass up bass maximum bass down bass minimum 4 4 TEST MODE 2 Test Mode 2 is available by pressing the TEST button twice OSD TT appears The functions described below are available by selecting the two numbers To release the Test mode 2 press 00 10 20 twice or switch the TV set into Stand by mode In TT Menu mode it is possible to remove the Menu from the screen by pressing the Speaker Off button once Pressing the Speaker OFF button a second time will cause the Menu to reappear The function is kept even when the menu is not displayed on screen TT mode off Picture maximum Picture minimum Set speaker headphone Volume to 35 Set speaker headphone Volume to 50 Set speaker headphone Volume to 65 Set speaker headphone Volume to 80 Ageing mode Shipping Condition Sub picture adjustment Sub colour adjustment Sub Brightness adjustment Text H Position adjustment Rotation Coil Test Picture level 50 Factory Mode E
3. Beanstandung Keine Funktion Ger t setzt aus etc SYMPTOM Keine Funktion Ger t setzt aus etc URSACHE Taktfehler der I C Bus Signale SDL und SCL infolge einer Fehlfunktion des Tuners BTP EC411 8 598 045 00 oder 8 598 045 01 ABHILFE Im Tuner den Erdungsanschlu bei TSA5512T PLL wie gezeigt nachl ten Resolder LELSSVSL ANMERKUNG Die Abhilfe wurde ab dem Produktionslos Faxxxx vorgenommen ab Mitte Dez 97 ANFALLENDE MODELLE Ausschlie lich die mit dem Tuner BTP EC411 ausgestatteten Ger te Sony Consumer Service SONY Deutschland GmbH Hugo Eckener Stra e 20 50829 K ln
4. file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 36 of 36 26 1 2004 0 28 03 FE 2 SELF DIAGNOSTIC SOFTWARE The identification of errors within the FE 2 chassis is triggered in one of two ways 1 Busy or 2 Device failure to respond to IIC In the event of one of these situations arising the software will first try to release the bus if busy Failure to do so will report with a continuous flashing LED and then communicate with each device in turn to establish if a device is faulty If a device is found to be faulty the relevant device number will be displayed through the LED Series of flashes which must be counted See table 1 non fatal errors are reported using this method Each time the software detects an error it is stored within the NVM See Table 2 Table 1 How to enter into Table 2 Error Message 1 Turn on the main power switch of the TV set and enter into the Stanby Mode No error 2 Press the following sequence of buttons on the Remote Reserved Commander OCP Over Current Protection Not Used No Vertical Sync IKR Error at power on i 7 IIC bus clock and or data lines low at power on gt 5 gt L gt NVM no IIC bus acknowledge at power on FORSCHERN Bere oeg Er Not Used DISPLAY Tuner no acknowledge at power on Sound Processor Error Jungle controller 8 volts error 3 The following table will be displayed indicatin
5. ID7 0 Write these in memory then press 8 Enter to initialize Also the set will enter the video input mode if another brand of remote that operates a tereo receiver is used After first turning on the set the cathodes of the CRT are measured ith an oscilloscope An interesting fact that after the set is turned on there are no visible IK pulses on any of the CRT cathodes IK pulses only appear when the channel is addressed with the remote or the Channel up down command on the television Initialization of the EEPROM did not correct the symptom No incorrect values found in the alignment parameters Only by elimination was the trouble found to be in the EEPROM Unit will turn on but not have any raster until the channel is selected The LED in ront flashes indefinitely until the channel is elected After a channel is selected the set ill run fine the rest of the day The unit has high voltage filaments amp vertical sweep during the no raster condition KV27V42 system control KV27V42 serial 8028220 When this elevision is on Channel 2 the raster will go out Changing the channel the raster Tech needs to enter the tech menu and adjust the CDMD returns Going back to channel 2 the raster parameter from 0 to 3 disappears again LED in front flashes hen the NO raster symptom is present Sony KV27FS13 KV2084 System control SYSTEM CONTROL Checking the keyboard we found nothing wrong
6. Power supply chirp KV32S40 8096389 Customer complaint is hen the set is turned off there is a slight noise zip noise from the flyback ransformer that lasts for about 2 10 of a econd The customer exchanged the first Sony for this trouble But the symptom was also in this TV too The customer tried two of the same models and claimed they did not here this noise when they heard it at he store This noise is normal due to the fact the set does not shut off the Main B from the main SMPS What is turned off is the 9 volt source from IC642 in the G board As the voltage decays the there may be a slight phase shift in the horizontal drive signal as soon as the 9 volts begins to drop The reason the customer could not hear this symptom in a store is due to its acoustics The store is far noisier and carpeted walls and floors In the customers home the set sits in an enclosed oak cabinet no doors in a bedroom with tile floors One can here a pin drop in this room This set is operating normally Sony KV35S40 KV27S22 KV27S45 AA 2 preglow PURITY purity KV35S40 Unit has preglow at the instant he television is turned on The preglow hows in the lower left and right hand orner and stays until the raster appears KV27S22 serial 8091271 After the unit is urned on and the picture is on there is evidence the degausser is still running for about 5 seconds after the picture comes on There seems to be a 18 seco
7. DF transformer Unit had defective flyback transformer 102 2 0 0251 CRT Attempting to move the focus control does not cause the Sony KV36XBR200 AA 2H FOCUS 9 area on the outside of the CRT to change focus Unit may have SONY K creen The last 3 inches have a noticeable Bad CRT ocus error Unit is trying to constantly adjust the When monitoring the E W Pin output of the M board the signal was V32XBR45 AA 1 GEOMETRY ertical height and horizontal size very instable It was decided to replace IC351 the Jungle IC This intermittently corrected the trouble KV27S10 serial 723009 Unit has symptom every time the set looses power the geometry memory is lost VPOS VSIZ Sony KV27S10 AA 2 GEOMETRY HSIZ PAMP drop at least 10 points each ech needs to replace the EPROM 1002 corrected the i r problem hen resetting these values and writing hem to memory the they will be erased as oon as power is removed ER zena ELTERE SEID This television is operating within specifications The geometry omplaint is a slight geometry error or tilt in i errors should not deviate more than 1 8 of an inch across the NE CCAS As corner Orne Sor end length of the Horizontal line Horizontal tilt can be no more than 1 8 Sony KV27V65 AA 2 GEOMETRY causes a symptom of horizontal lines that gm rs r of an inch This television beats this measurements There is are not perfectly straight In this case the i l nothing can recommend to
8. Raster None Raster Sound O K LED on front panel With the socket disconnected the G2 voltage returns to 410 volts lashing It also does have high voltage Unit has defective CRT CRT must be replaced A80JYV52X Cure Checking the 12 and 12 volts at IC561 2 amp 4 respectively are normal Monitoring Q561 C it was only 1 7 volts where it should be about 3 volts and Q561 B was 0 6 volts where it KV32V40 Unit has no raster When G2 is should be 0 volts The voltage at Q562 B is always low increased the unit has a non uniform bright 0 11volts By pulling the base Q562 B high with a DMM in the Sony EEREN SEELE creen brighter at the top of the screen diode check mode we are able to get full vertical sweep It appears he television has sound there is no or poor pulse coupling between the FB pulse U561 3 and Q562 B A strong pulse is present at U561 3 when grounding Q561 B No pulse at C564 Tech needs to replace C564 1mfd 50 volts was open had tech measure the Cathode of the CRT All cathodes were at 368 volts This voltage is about 180 volts too high This voltage did Son KV13V50 Raster None an au a not vary even when the CRT was disconnected This indicated the y i Thout BENS resis 9 p 180 volts source at cathode of D512 180 v source was too high If yp i CRT were disconnected the voltage is still too high Open bleeder resistor at cathode of D512 STE SHE erase Pin 27 of the combfilter did not have and 3 58 MHz si
9. The AFC get the frequency of the video carrier centered in the KV27S42 Serial 411756 Unit does not passband of the IF The horizontal sync is used to validate the autoprogram When using direct access to signal is a non scrambled video signal This television did not have hange channels the set will execute the Horizontal sync from IC010 an HSYNC SW This device is Sony MACE Sonal hannel change but takes nearly 4 seconds used to detect valid horizontal sync from both tuners There was before it will lock in channel the set will composite video at IC010 1 but there was no output on IC010 7 access it Neither one of the tuners had good channel lock in characteristics Suggest the tech check out IC010 IC 10 had a contaminate under the chip It was a light brown compound that covered all pins under the IC The contaminate was removed and the old Chip reinstalled and the set operated normally KV35XBR35 Unit has color temperature According to Sony tech support there is no adjustment for this error in the YUV input mode only input Refer this customer to Sony customer affairs KV27S22 serial 8102548 Unit goes to a KV27S22 BRIGHT RASTERIbright blue screen with retrace lines then huts down KV35XBR35 B amp W Tracking Unit has a defective CRT When unit is able to turn back on again the set will sometimes be in the video input mode This symptom acts like it is a problem with the satellite receiver Inside the satellite receiver t
10. are present in the correct spots of the K board Tech can measure 9 6 volts buzz at speaker terminals However with the nie as a Signi GU tz Buzz In tie speakers disconnected the customer still claims to hear the 60 hz Sony KAKE _ zn peal a a ne xoma mpu HIE buzz It this is true the tech needs to look into the deflection yoke and no signal applied the hum is evident for a cure the buzzing By putting pressure on the yoke the tech can try to eliminate the vibration in the yoke assembly caused by loose laminations Our tech plugged in the set and found the set did have a spark as KV27V10 serial 7104657 When the CATV 800 as the set was plugged in the AC outlet This is perfectly normal because this chassis has to fully charge 2 820 mfd rep was out a few days ago he plugged in i electrolytics in a voltage doubler configuration This causes a he set in to wall and when the prongs r tremendous amount of in rush current that may draw several __lmade contact with the AC wall outlet a z z Sony KV27V10 AA 2 AC leakage claim amperes until the filters are charges up This will cause a contact mall spark was seen The CATV rep r 2 u i arc the moment the set is connected to the AC line This set poses exclaimed The television is a fire hazard z rr no more fire hazard than any other electrical device that plugs into and you need to call for service He left the he AC outlet We al f AC leak h et unplugged and we
11. as NLA by Sony It s the KV32XBR70 ANU1 Audio SBX 1593 01 Sony 8 741 159 30 Wouldn t you just HATE to have to trash a nice Sony TV because you can t get a part to fix a Sound Problem Well one of our readers has come forth to tell ou of a way to bypass this circuit This model if the set failed while it was ON will automatically turn it self on as soon as power is applied This is normal When check out this power supply and before replacing any parts the tech needs to check out all loads on this supply Measuring the resistance on Connector G5 pins 1 to 4 measured less than 1 ohm This was for the audio B and might possibly indicate the Audio output IC s was shorted Further checking found that D1409 a 36 volt zenor diode on the A board was shorted If connector G5 was disconnected the set would operate Monitoring the B found the B varing from 36 to 39 volts The was caused by numberous bad solder connections on the G board Worst connection was on T604 16 amp 17 These bad connections caused the power supply to not to have stable output voltages on the Secondary ESR testing found that C667 100mfd 10vdc C668 100mfd 16vdc and C661 220mfd 35vdc had highter than acceptable ESR readings These were changed also Set was restored to operation condition To bypass the module Use two 4 7 50 capacitors and connect the side of one cap to pin 5 on the MTS module and the side to pin 4 on the DBX m
12. be replaced CRT fixed the unit minutes and in 1 case 1 week file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 8 of 36 26 1 2004 0 28 02 Sony TSS Logs Sony KV36FV1 AA 2 KV27XBR15 Dead The set was completely dead VDR602 was noticeably burned up Cutting this device our of the circuit found that it was open However the device is connected in the circuit like a metal oxide varistor It should measure open since it is in parallel with the A C Line It was discovered that no other shorted components could be found in the primer of the power supply Main line fuse WAS NOT BLOWN Checking the raw AC voltage on the AC Line filters T601 and T602 find that we have no AC voltage on the output of T602 but present on the input side Isolating the open coil and removing the defective VDR602 allows the set to turn on and operate correctly Tech will need to replace T602 and VDR602 KV36FV1 serial 9029271 Unit is dead After talking to customer they explained hat they had a power surge caused by a ar hitting a power pole Sony KV27XBR15 ANU 1 chassis Unit is dead Unit had all 3 regulators loose All had ring fractures Once resoldered the set till did not turn on because of a short to ground on the 135 vdc line Horizontal output is also shorted This unit requires a modification to the horizontal output section KIT T 998 566 41 This Kit consists of a2SC4927 and a 68 ohm resistor that must be
13. htm 10 of 36 26 1 2004 0 28 02 Sony TSS Logs Sony KV24FV300 BA6 DEAD KV24FV300 his TV RAN and for approximately ten hours and then shut down The standby upply is running because the relay RY600 All conmponents Q600 Q601 are not shorted B at Q600 D was ill latch But RY501 will not latch LED in 845 vdc Checking R640 a 1K resistor found it to be open It was ront is blinking 4 times then stoppsWhen suggested that R640 and IC600 be replaced IC600 Pn is 8 759 measuring the presence of B at IC600 18 670 30 Replacing the devices corrected the problem referenced to hot ground it was missing Main supply was not oscillating Here is the problem An arc occurs from the CRT dag to the heatsink of Q600 because it sits so close to the Dag The heatsink is isolated from ground so the arc has no where to go but to the closest point to the heatsink This point is IC600 18 The arc kills IC600 and R640 blown IC600 and subsequently burns up R640 a 1K at 1 2 watt resistor Replace the defective components then add a 100K resistor from the heatsink to ground Directions are located at this link http wa6ati home mindspring com BA6 IC600 Countermeasure pdf Sony KV32XBR36 KV32XBR76 FN Dead KV32XBR96 FN Dead KV36FV1 AA 2 FOCUS Unit will not power on Monitoring the 17 dc stand by supply we find the voltage running at 4 6 volts One of the primary filters on the 17 vdc standby supply C662 a 22
14. lines have a shoulder roll off Tech ordered oke specific to bulletin 387 but received the complete CRT held off replacing the CRT due to three of these have been changed so far with no changes in the symptom KV36XBR250 This television has as ymptom on the screen where a small area has a non linear horizontal area that auses the image to expand when the image passes through this area The area about 1 2 inch wide and effect the entire rame of the picture It can be seen if haracters are scrolling through the screen Use part number out of bulletin 379 for the pix tilt correction coil Bulletin 387 did not mention a THL plate which needed to be adjusted was in the old deflection yoke After following the new bulletin 387R1 we were able converge the set Also the new tube needed 3 magnetic on the bell of the tube to correct a purity error and converge the lower right hand corner Tech needs to change the value of C553 from 33 200 vdc to 47 250 vdc part number 1 117 667 71 This improve the linearity in that are of the screen KV32V26 green retrace lines Sony KV32V26 serial 8012582 Goes to green retrace lines and then shuts down hen it comes back on again the unit will be in the video input mode The CRT is A80JYV51X The cathode voltages at red and blue cathodes are 156 but the green cathode is 22 When the socket is disconnected the green cathode supply jumps to 153 vdc The CRT is defective fi
15. on the built in shelf hen customer uses the 8mm deck the playback of the tape has corrupted audio and poor tracking performance when played back on this television The problem is caused by D1409 on the A Board shorting Problem caused by an intermittent B regulator on the G board IC651 1 809 524 11 Replacement resolves problem We have seen a number of these units lately with D1409 shorted Often it is simply ring cracks on IC651 causing the problem This unit did have a loose solder connection on IC651 1 but it did not drop the voltage down enough across D1409 The voltage was always 36 6 volts across a 36 volt Zener diode When monitoring the Horizontal output collector we found the 140 dropped slightly at turn on But the Horizontal driver Q501 C dropped to 85 and back up to 140 had the tech to remove the horizontal output transistor and try starting up the set again After power up measure the Q501 C horizontal driver transistor It should be about 85 volts and stayed This told us we were looking at a shutdown symptom Checking all secondaries we found nothing shorted Replaced flyback which corrected trouble The horizontal driver has tremendous amount of ringing on it Does not change if we remove horizontal output transistor The transistor has drive has 7 distinct pulses on the base that go above and below the cut off point of the transistor These seven pulses are 1 microsecond in duration and are grouped in cluste
16. screen of a narrow raster that is hourglass Shaped L511 and Q512 are burning up Suggest the tech replace the following additional components D502 D503 D504 C511 and C513 KV35V36 Product has a insufficient HORIZONTAL horizontal sweep The sweep is reduced by 10 to 15 on the left side and 2 5 on he right KV35V35 When going into the tech set up parameters and adjusting the HSIZ value the sweep will change to full sweep Monitoring the voltage at the Collector of Q512 the voltage will vary from 27 volts HSIZ set to 22 When HSIZ is set to 48 Q512 C will drop to 16 volts The set will have full sweep but it has a slight foldover condition on the right side of picture It is recommended the tech replace the retrace Capacitors C511 amp C513 and the Yokes capacitors C518 amp C515 Tech replaced all of the capacitors and the symptom was corrected file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 14 of 36 26 1 2004 0 28 03 Sony TSS Logs Unit has shorted L511 and Q512 Tech HORIZONTAL Tech needs to replace D503 D502 D504 and C511 C512 the zony KENE gas SWEEP eee Wiese es and Ihey DUM out retrace capacitor along wit the other components KV36FV1 serial 9023663 Unit has a sever Son KV36FV1 AA 2 HORIZONTAL lover scan condition for horizontal sweep Tech needs to check on L511 Q512 C513 C511 D502 amp D504 y SWEEP ech did not measure any voltages inthe One or more o
17. side to ground This simply increases ony vertica Ines Ion apari ori tie e Tage STINE aceon tthe capacitance on the 130 volt line to the horizontal output section an be scene on all inputs Best seen on cenes around 10 20 IRE and reduce ripple caused by the hard demand of current when the flyback is switched on Part 1 107 654 11 This minimized the effect l No vertical drive from Jungle chip Data and clock normal Jungle Sony KV35V35 AA 2 vertical sweep ei ee NVE AAEE A chip has been replace several times with no effect EPROM was Go soune changed too with no effect But the CPU IC001 repaired problem file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 33 of 36 26 1 2004 0 28 03 Sony TSS Logs Sony KV36FV1 KV36XBR200 KV32V20 AA 2 VERTICAL SWEEP VERTICAL SWEEP KV36FV1 Unit has insufficient vertical weep and vertical foldover at the bottom of he screen KV36XBR200 serial 9015396 Unit has insufficient vertical sweep Also has top ertical foldover Tech can get into the menu and effectively move the vertical height and centering but it will not illuminate he foldover condition KV32V20 Unit has poor contrast Tech has o raise the G2 just to get a raster When he raster appears the picture is washed out and lacking good contrast ratio Suggest the tech try to replace the Charge pump diode and pump up capacitor D561 amp C565 This did not correct the symptom But
18. switch Removing the channel down switch corrected the problem All remote control functions return to normal and so did the keyboard functions KV27F15 The set has a symptom of the keyboard doing the wrong functions Cannot get into the tech menu When the display button is pushed the set will shut off file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 29 of 36 26 1 2004 0 28 03 Sony TSS Logs Sony Sony KV27V22 KV27V25 KV36FS10 SYSTEM AA 2 CONTROL system control System control KV27V25 Unit has intermittent snow in the picture zThe tuner pn 8 598 340 20 was replaced Now the set has a symptom here the remote control causes the set to enter the video input mode when the hannel is selected Also the set will enter he video input mode if the and another brand of remote that operates a stereo receiver will put the set into the video input mode instructed the tech to enter the tech mode and set the ID codes ID0 25 ID1 23 ID2 47 ID3 0 ID4 27 1D5 135 ID6 1 ID7 0 Write these in memory then press 8 Enter to initialize This corrected the problem Unit has intermittent snow in the picture 8 598 340 20 tuner was replaced Now the et has a symptom where the remote instructed the tech to enter the tech mode and set the ID ontrol causes the set to enter the video codes IDO 25 ID1 23 ID2 47 ID3 0 ID4 27 1D5 135 ID6 1 input mode when the channel is selected
19. the tech to do to improve on the lines are elevated by at width of 2 r r geometry of this receiver horizontal lines KV32S45 serial 8102913 picture is rotated 5 lockwise by 1 4 inch Tech claims this tube Tech needs to break the bonding of the yoke ant reposition the Samy CERE an ra does not have a pix tilt circuit or rotation on yoke he CRT bell KV36FV1 serial 9032273 Unit has a ymptom of Shoulder roll off In other Sony KV36FV1 AA 2 GEOMETRY YOrds horizontal lines are bent down on the a tech bulletin 387R2 relating to the shoulder roll off ar left and right side of the screen Tech needs yoke modification for the yoke upgrade file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 12 of 36 26 1 2004 0 28 03 Sony TSS Logs Sony KV32XBR200 KV32XBR200 AA 2H GEOMETRY GEOMETRY KV32XBR200 serial 9008075 Unit has just had the new CRT with the attached Bulletin 387 did not mention a plate which was in the old deflection oke replaced today to correct the Shoulderyoke The missing THL plate needed to be removed from the old Roll off symptom as described in Bulletin yoke and placed in the same slot in the new yoke After following 87 However the new tube and yoke did the new bulletin 387R1 we were able converge the set not solve the vertical pincushion symptom KV32XBR200 serial 9018039 Unit has Shoulder Roll Off symptom as described in Bulletin 387 Tech will be orde
20. too There was no Data or clock on the UX board Checking the presence of 9 volts we found it to be only 7 volts Monitoring the protect diode D261 zener diode on the SDA line Unit had a defective D261 on the UX board Unit has insufficient vertical sweep Also has top vertical foldover Tech can get into KV36XBR200 AA 2H vertical he menu and effectively move the vertical ech needs to replace IC561 D561 amp C565 Unit had defective ro Pump up capacitor C565 height and centering but it will not eliminate he foldover condition KV27TS20 Unit has highly intermittent Unit had small ring fractures around the vertical deflection yoke Sony KV27TS20 ANU vertical ertical foldover mostly at the top of the connector pins on the chassis Resoldering the connections creen corrected the symptom Oni hae an nense horizontalna Across Replaced IC561 and the CRT corrected the vertical sweep problem Sony KV27FV300 BA5D vertical he screen Before the screen control could Put the screen was still uncontrollably bright The R G amp B cathodes of the CRT were only 5 volts The TV also needed IC702 BENENNEN TDA6108JF original part number 8 759 562 43 file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 32 of 36 26 1 2004 0 28 03 Sony TSS Logs KV32XBR36 Unit has a slow compressing Q605 was not soldered well zony peas un verica and decompressing of the vertical sweep Checking IC591 5 the
21. top 1 5 of the tube orking It was also discovered the 15 was missing Tech needs to look at D530 and R537 a 0 47 ohm resistor Unit had bad diode resistor and vertical output IC501 KV32S22 Unit was dead Has a glow at he top of the screen only when the G2 oltage is increased Unit is missing the 15 volt source voltage to the vertical output file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 31 of 36 26 1 2004 0 28 03 Sony TSS Logs Both 2 and 4 of IC1501 are 12v and 15v Appears to have the Vz Ul nas Eg uaa at top ot rong inputs to the vertical output chip Data line shorted to Sony KV32S25 AA 2 Gaaninass o EERE iE SEES ground The clock line sitting at 5 volts with no clock signal g N ee unit Es o PS Removal of the PIP module restores the normal operation Unit has defective PIP module Tech is trying to cure the vertical sweep defect but the not the sound These are related to each other This set will not develop vertical sweep unless there is data communications between the r microprocessor and Jungle IC Tech needs to monitor the SDA amp T 1 ihe SCL lines that are marked on this chassis If there is a short on Sony KV32XBR48 AA 2 VERTICAL and Tech aolaced the br output IC either line the set will loose vertical sweep Clue is you need the ithout ne Teen p SCL amp SDA lines to control audio if a short is on these lines or data g ymp is corrupt the set will have no audio
22. used in the emitter of the horizontal output transistor KV27S40 KV27S45 KV27S40 Unit is dead Will not turn on LED Checking the secondaries of T603 we could not find any short lashed 5 time The set will latch the relay circuits on the se The needs to connect a variac up to the television but will not develop secondary voltages and supply 18 volt AC A jumper need to be installed across the rom the main power supply contact connections of RY602 in the A board VDR5050 is metal oxide varistor It is in parallel with the AC line voltage It appears the customer had a AC line source that blew the MOV then the fuse Checking Q5001 we do not find a short between Drain and Source Suggest the tech remove the MOV and replace the fuse and try operating the set It operates fine Suggest the tech replace the MOV but disable the television until the MOV can be replaced since the MOV is a Protection device in the event the Power surge returns NOTE It was discovered the VCR was also dead which not was not evident at the time of the call This confirms the power surge theory VDR5050 1 801 074 41 F5050 1 576 193 11 6 3 amp 125vac KV27S45 VDR5050 Unit dead Inspection of the chassis discovered there is no stand by voltage Inspecting the E board found hat the fuse F5050 was open and the VDR5050 had a chunk of material blown off of it KV27V40 There are apparently no shorts circuits on the secondary of the main switch
23. went out on this day the outlet We also per ormed an A C leakage test on the chassis and found that it was less than 015 volts measured at the customers ground connection and neutral Tech will need to go out with an variable audio tone generator to see where the source is of this mechanical vibration Once found the tech must apply a special tape to the mating surfaces of the Sony KV32V40 BA4 acoustal vibration 9240 serial Unit has an acoustical Cabinet parts that are vibrating as stated in bulletin 244R1 This eration OM CETA EUe neice bulletin does not actually apply to this model but the approach to the repair is the same Part of the tape necessary for this job is 7 632 661 51 file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 1 of 36 26 1 2004 0 28 02 Sony TSS Logs lUnit needs to have the IF Demodulator module removed from it s ee ee eel COU ee shielded compartment and resolder all the adjustable tuning Sony SER ai all SN Coe He caanoe transformers The AFC coil transformer has ring fractures around addressed It never stops the AFT search eee the pins that protrude through the circuit board KV27V40 Unit will not change channels Tech needs to check the SDA And SCL lines to the tuner When he number changes but the set will only the set is on the Clock line at the tuner has a pulse but the SDA is Sony SEREN H ASIEN display a all snow image Tech replaced Low N
24. will latch but RY600 ill unlatch after 15 seconds KV27S45 serial 8015302 Unit will turn on but will have high voltage It will shut down ith the LED in front flashing 5 times indicating there is no vertical sweep umping RY602 was able to keep the set on and test the power supply and IC451 integrity RY600 is the degaussing relay The 15 second delay is normal Since the unit never develops high voltage it would be obvious to all that vertical deflection will not occur However the flashing of the LED 4 times is a bit misleading The turn on relay RY602 latches but we are not able to achieve secondary B Closer inspection discovers that we are not getting primary voltages either Jumping the relay RY602 achieves High voltage and all functions ork normally Unit has a defective RY602 part 1 755 266 11 Checking all the MUST HAVES found that all B s were normal on the vertiical output IC But checking the Data and clock found that the pulses after the power is pressed the data and clock pulsed 3 time during a the 3 second period wait affter power button as pushed After the 3 seconds there was a were a Series of pulses with a duration of only 120 microseconds wide remaining for 3 more seconds then disappeared The pulses were 5 volt peak to peak and looked OK Artificially was able to tickle IC451 1 amp 7 ith my Fluke 77 meter in the diode check mode This tests the ability of the IC to deflect the beam up or down to ch
25. with a Manual Product has a defective MTS audio controller part 8 741 592 2 8 KAO U TAS na Audio 741 100 56 original number SBX1592 02 corrected the symptom KV27S15 NO CHROMA Scoping the first place where the chroma signal can be readily available is on the PIP module They are marked C IN amp C OUT lon connector CN501 1 amp 5 We have chroma going into the PIP board but nothing coming out Jumping these pins together with a 1 mfd capacitor caused the color to return as long as the capacitor as in place Unit has bad PIP module KV27S15 Unit has no Chroma Black amp hite is OK Also no Chorma while using he PIP Sound and On Screen Display OK Initializing EPROM does not change the effect Sony KV32XBR48 KV32TW77 no chroma PIP No high voltage Sony KV32XBR48 No chroma in PIP Sony AA 1 chassis Unit no high voltage or ound RY602 latched at turn on Tech replaced the flyback and Q601 Q602 Inspected the Power oscillator and discovered that it was running VDR601 VDR602 VDR603 amp R607 After land producing 167 volts DC at the input side of RY602 but a lt 13 heses components were replaced the unit volts on the low side Jumping RY602 restored High voltage Unit till did not produce secondary B Only 3 had a bad RY602 relay in the power supply olts on the collector of the Horizontal X3304 On PX board not soldered PIP output file C Documents 20and 20
26. 0mfd 35vdc was open The problem is caused by D1409 on the A Board shorting Problem caused by an intermittent B regulator on the G board IC651 1 809 524 11 Replacement resolves problem We have seen a Unit will not turn on No high voltage number of these units lately with D1409 shorted Often it is simply Measuring the condition D1409 is shorted ring cracks on IC651 causing the problem This unit did have a loose solder connection on IC651 1 but it did not drop the voltage down enough across D1409 The voltage was always 36 6 volts across a 36 volt Zener diode R623 and VDR 602 burned up Tech needs 8 2 ohm resistor to KV32XBR96 Unit is dead and has no replace Tech does not have 8 2 ohm in his stock However he can ertical sweep make an 8 2 ohm by paralleling a 10 and 47 ohm resistor This will create a 8 24 ohm resistor C531 vented is Connected to R881 This is caused by the 10 megabit throughput limit of the DSS video compression format MPEGS In order for the compression to work correctly the Digitization process only updates the data that is changing Background data is not updated as regularly as the foreground data Hence when everything must get updated But the MAX Data throughput is finite the entire video waveform will not be accurately represented instead the smaller detailed portions of the picture will begin to have larger pixels so not to exceed the Max Data This is why to the eye the set appears to l
27. 1 serial 9002390 Main tuner will not tune any channels but the PIP tuner is ine Tuner was changed without any sony Sia cz uning nange ih TETN a just En There appeared to be an open between the SCL of the main tuner ead the OSD for main haral d TS and CN1101 6 Since the traces on the CBA are so thin the and no Formel cracks in the board material could be seen the decision was to install a small jumper wire between these two points This corrected the symptom Unit has AFT drifting as soon as the Unit needs to have the IF Demodulator module removed from it s Sony KV27XBR10 FN tuning hannel is addressed It never stops the E Ne Seo Comp arinien and TESOICEr ae agusang tuning i transformers The AFC coil transformer has ring fractures around KV35V68 TV Guide Plus AFT search the pins that protrude through the circuit board The IR blaster is used to communicate from the television to the CATV box in order for downloading to occur If the IR blaster is not used the feature will remain inoperable because when the set downloads the data it must find the host channel It uses the IR blaster to change channels on the CATV box in order to find the host channel In order for this to operate the customer must use the IR Blaster If not they will need to split the cable before it gets to the CATV box and deselect any VCR or CATV box questions by answering NO to questions about them in the initial setup menu KV35V68 Serial 9005526 T
28. 4 s core orientation has been modified from suffix 11 to 21 due to the parts construction productivity improvement As a result of this modification this part s radiated magnetic field is affecting L505 performance as well saturating L505 and affecting linearity L505 getting very hot or becomes Pincushion defective Horizontal shifting in areas of the picture to he left and right of center Poor horizontal linearity The pincushion circuit is a diode modulator type The source voltage of Q505 C is developed at the junction of C519 C522 as voltage divider of main B This division ratio is modulated by a vertical parabola at Q505 B We have had L501 and R571 are open amp Q505 is shorted have seen 8 units with these parts bad KV25XBR10 Unit has excessive horizontal Only two where IC531 was also also replaced One thing that have also noticed is the silk screens labels for Q505 element pins are incorrect on the board as well as the service manual silk screens So it is very easy to get the transistor in backwards if you don t pay attention on how you remove the old one My suggestion is to replace the listed parts to restore normal operation In the tech menu PAMP CPIN PPHA adjustments can be tweaked slightly Pincushion KV35V36 asked the tech go through the ID codes for this unit and see if they were the correct value ID3was 10 ID5 was143 amp ID6was 0 These were wrong The ID codes are supposed to be from IDO I
29. BR76 FN Cycling on an off plugged in ESRi ing all the electrolytics we found that C662 in power supply i as open Its ESR was infinite Value was supposed to be 220mffd 35 vdc had the tech check the Secondary of the T605 for shorts Also check to see if the horizontal output is shorted Did not find any kS shorts in the horizontal but the driver transformer had small ring SEE gt Rady Thee aut tr oot fractures around the secondary pins Resoldered these pins and Sony KV32TS36 AA 1 Dead started the set up again with a 40 watt light bulb in place of R607 o the set and blew out all the same omponents again The set operated with reduced secondary voltage and cycled on and off at about a 3 second rate During the cycling the collector signal at Q501 C was normal Replaced the light bulb with a new R697 and the set ran fine Tech needs to check the condition or RY602 RY602 is the Unit was dead has shorted horizontal switching relay that turn on and off the set The relay is HOT output and shorted Q601 amp Q602 switched In other words one side of the relay is connected to omponents in power supply replaced power oscillator output that runs nearly 350 vac Peak to Peak at Sony KV32TS46 AA 1 Dead After replacement unit will turn on but still 90Khz Once the relay is closed this energy is placed across the has no secondary voltage output of power power output transformer and provides the drive necessary to ransformer All relays click but no h
30. D7 25 55 47 10 155 6 0 After resetting the ID codes the set operated the PIP correctly but still needed to set the PIP chroma phase KV35V36 Unit has no control over PIP hannels The PIP only displays the main hannel It will not change on its own KV32XBR76 Sony KV36FS10 This symptom is a result of a high frequency loss The ability for the amplifiers in the B drive to turn on an off rapidly is a direct result of how high the bandwidth is In this case the three outputs of the Jungle IC301 20 22 amp 23 had the typical signal when viewed on an oscilloscope All three outputs had the same vertical spike in the center of the horizontal line on the oscilloscope scope Waveform showing the cross hair pattern was the same value on all three outputs However on connector E1 5 the signal was noticeably lower R359 the supply resistor for Q325 had increased in value to 3 76K form 1K Replaced R359 surface mount resistor corrected the symptom Readjusted main focus control on vivid mode In the tech menu lower the setting of RDR4 GDR4 and BDR4 from 44 to 37 this Poor focus on outer area of pix Characters lowers the contrast A low contrast and picture level improves the Poor edge Focus jor graphics on other area of screen look outfocus on the outer area of picture Able to improve outer focus on of focus KV32 and 36XBR200 KV32 36FV1 by adjusting Hamp and DCSF But on the new models chassis AA 2W Hamp and DCSF had no affe
31. R the current was surging to over 200 MA Checking al the loads on Television Te sligged i ane secondary found no obvious short circuits However when i checking the capacitors in the primary we found C610 has internal resistance of 470K There should be no internal resistance Replaced C610 and restored normal operation Suggest that C609 C610 C611 and C612 be automatically replaced when this happens This product was brought into the shop where the set was operated KV32S40 Unit will run for several days then with the CRT disconnected for approximately 100 hours Sony KV32S40 AA 2 Dead it will short the horizontal output transistor continuously It ran fine But 6 hours after the CRT was connected and destroy the power supply IC601 the Horizontal output and power supply self destructed again Unit has defective CRT Suggest the tech replace the CRT as replaced Nos cee After replacement of the components the sweep was still excessive When using an oscilloscope on the IC351 31 the E W can of horizontal sweep Collector of Q512 r f Sony KV32V40 AA 2 Dead only 2 volts O512 was shorted L571 Is Imm out we found 6 volts DC and no 60 HZ parabolic wave torm this E W output pint was touched to ground through a 270 ohm Pumar anc neeg 1ang ended resistor the picture narrowed up to a an almost normal width ith D504 D503 D502 C511 C513 and z L511 Product had defective IC351 Checking the Collector of the Horizontal output transistor the retr
32. RF input labeled he RF input labeled VHF UHF the set will VHF UHF and the satellite is fed into the AUX input It appears the picture will lose chroma intermittently But tuner does not correct the AFT when two different RF sources are Sony KV35XBR200 AA 2 CHROMA hen using the AUX input the chroma is lused The channel will has to be readdressed again for any AFT olid and does not vary The tech replaced correction to occur Suggest the customer used the satellite in the he RF switch without effecting the S video and separate video input mode In his present ymptom configuration the customer is loosing all stereo reception and all high frequency detail over This corrected the symptom Unit is connected in to component video Sony KV35XBR48 AA 2 CHROMA input mode through a DVD player The picture has a predominately green picture When operating a different DVD player the symptom is the same There is no cure to this phenomin from Sony at this time The clock should remain within 7 seconds or minus in a seven day period The time base is from a crystal and the count down circuit inside the microprocessor Suggest the tech replace the crystal and the two padding capacitors in the crystal network KV27S20 serial 7042141 Unit will not Tech needs to order IC001 T 935 001 61 per bulletin R329R1 CLOSED operate in the closed caption mode if using After replacement the tech will need to enter the tech menu and KV27S20 CAPTION he DVD pla
33. Seitings Admin Plocha Sony 20TSS 20Logs htm 15 of 36 26 1 2004 0 28 03 Sony TSS Logs SONY KV27S25 AA 2 NO HIGH VOLTAGE KV27S25 serial 811908 Unit has no High oltage LED in front is flashing on and off after power up There does not seem to be any horizontal drive to the Horizontal drive ransistor Defeating the Horizontal output by removing the collector connection still ill not allow Horizontal drive to appear at IC351 37 This pin is sitting at nearly 8 5 olts not the 3 volts it is supposed to be Also IC351 38 the HOFF AFCPIN is at 3 3 olts which is normal Looks like the tech has a bad IC351 CXA2025AS A second Jungle IC corrected the problem Sony KV32XBR200 AA 2H NO HIGH VOLTAGE KV32XBR200 9015636 Unit will click on hen it will turn off again Does not get high oltage Unit has b to horizontal output but no horizontal drive If the Horizontal output is removed the set will produce the necessary drive signals Collector of H driver Q501 C measures 85 with Horizontal output removed Unit appears to have a shorted Flyback lor a problem in the horizontal output section that caused the OCP circuit to attack Product had a defective Flyback transformer Sony Sony KV24FV10 KV27S45 BA4 BA4 NO HIGH VOLTAGE NO HIGH VOLTAGE KV24FV10 unit will not turn on No High oltage LED in front blinks 4 times indicating there is a vertical deflection has topped Both relays
34. Sony TSS Logs TSS Logs for Sony Television Products BRAND MODEL KV36XBR250 Chassis KEYWORD 16X9 mode SYMPTOM CURE Customers DVD player always plays back in 16X9 mode Customer has JVC DVD player Disc plays back in 16 9 customer elects 4X3 mode on their DVD player but V stills displays 16X9 The JVC DVD player puts out ID signal even when no 16X9 is available When the Sony TV detects this special ID signal it automatically puts the TV in to the 16X9 mode Compression Mode Customer must now select modes manually on their DVD player This auto feature can be turned off but only in the Service Mode Change ID7 from 9 to 8 This is the No Auto V Customer must now select modes manually on their DVD player KV32S40 The hum is a result of magnetic flux from the vertical deflection KV32S40 serial 9028282 that has a low yoke The 60 hz is radiating into the low level audio circuits through level audio hum in the video input or tuner inductive pick up from lead dress and ground loops To minimize mode Looked in the FPR on web site but these Remove JW086 and JW1007 Add 22AWG wire from JW270 ould fine nothing on the subject The hum lto ground side of R477 This wire should be on the top side of the A is at 60 Hertz board and routed to following the audio signal lines from IC1401 audio processor to the amplifier IC1461 asked tech to check to see if the upgrade listed in CSV 397 Jumper
35. Tech Rep Gemstar will not be able to correct the problem KV27V40 serial 8015653 Unit is onnected to antenna and two different Customer want to autoprogram all of these sources into antenna A atellite systems and want to auto program land the other source into Antenna B This is not possible with this each satellite receiver in both A and B type of television inputs Measuring the CPU IC001 8 finds that it is always 1 1 volts not 5 volts as it is supposed to be with no buttons pushed It was discovered that the customer tried to clean the CRT with Windex It dripped down the CRT and on to the keyboard This must have caused the 5 volts to be shorted to the input ofthe CPU Unplugging the Keyboard from the chassis still did not cause 1001 8 to rise It looks like IC001 8 New IC corrected the symptom Unit will turn on but after that the set will not urn off nor will any function on remote ontrol operate Sony KV9PT50 KV27FV15 syscon SYSTEM CONTROL Sony KV9PT50 serial Unit does not respond with the remote or Keyboard In act when the keyboard is activated the Shorted C009 on pin IC100 Volume goes low and any other key causes he set to either turn off or change channels Checking Key in to the I001 we found it to be sitting at 3 7 volts ithout any keys pushed This is an analogue input to the CPU and must be at 5 volts with no keys pushed Keyboard had small board contamination on the channel down
36. UST AGC Adjust 16 15 Automute Audio Gain L Gating Sub Brightness Adjustment Input a Monoscope pattern Press TEST TEST 13 on the Remote Commander Adjust the Sub Brightness data so that there is barely a difference between the 0 IRE and 10 IRE signal levels Sub Contrast Adjustment Input a video signal that contains a small 100 white area ona black background Connect an digital voltmeter to Pin 10 of J701 C Board Adjust the Sub Contrast TT11 to obtain a voltage of 95 0 5V Sub Colour Adjustment Deflection System Adjustment Receive a PAL colour bar signal 1 Enter into the Geometry service menu Connect an oscilloscope to Pin 5 of CN003 A Board 2 Select and adjust each item in order to obtain the optimum image Enter into the Service service menu Adjust the Sub Colour data so that the Cyan Magenta and Blue colour bars are of equal levels as indicated below ile ee ea GEOMETRY V Linearity V Scroll Be Same Level Left HBIk Right HBIk V Angle V Bow H Centre H Size Pin Amp U Corner Pin L Corner Pin Pin Phase V Slope V Size S Correction V Centre V Zoom Tuner AGC Adjustment Magenta B Out Waveform DVD HDD SSSSSSSSSSSSSSSSSS BHHOWWAWNHDANDADAWNADHNHANAW u Note There should be no need to adjust the AGC as this is pre adjusted during manufacture of the FRONTEND If the AGC
37. V guide plus does not function When the television is etup for TV guide Plus the customer is electing that they have a VCR and CATV box But they are not using the Calble Mouse or IR Blaster Sony Sony KV35V68 KV32S20 KV32522 AA 2 TV Guide Plus uneven brightness uneven brightness The IR blaster is used to communicate from the television to the CATV box in order for downloading to occur If the IR blaster is not V guide plus does not function When the used the feature will remain inoperable because when the set elevision is setup for TV guide Plus the downloads the data it must find the host channel It uses the IR ustomer is selecting that they have a VCR blaster to change channels on the CATV box in order to find the and CATV box But they are not using the host channel In order for this to operate the customer must use the Cable Mouse or IR Blaster IR Blaster If not they will need to split the cable before it gets to the CATV box and deselect any VCR or CATV box questions by answering NO to questions about them in the initial setup menu When raising the G2 voltage it was discovered the CRT hada uniform brightness where the top of the screen was brighter than his product has a strange glow toward the the rest in the CRT Measuring across the vertical yoke windings op of the tube Sort of an out of focus e found a8 5 volts It should be 0 volts if the vertical output is raster but only at the
38. When HSIZ is set to 48 Q512 C will drop to 16 volts The set ill have full sweep but it has a slight foldover condition on the right side of picture It is recommended the tech replace the retrace capacitors C511 amp C513 and the Yokes capacitors C518 amp C515 Unit has a severe over scan condition for horizontal sweep Tech did not measure any voltages in the pin amp circuit KV32XBR50 Unit has sever horizontal overscan Measuring Q505 C the voltage as near 0 volts Tech changed Q501 but the transistor shorted in less than 5 econds Sony KV27S20 Black banding across the screen Symptom does not appear when playing a tape Sony KV36FV1 AA 2 horizontal KV32XBR50 horizontal KV27S20 horizontal lines Tech needs to check on L511 Q512 C513 C511 D502 amp D504 One or more of these are shorted IT was discovered that the Q505 was shorting collector to emitter Also R571 was also showing signs of overheating It was suggested that L501 amp R571 be replace with a new Q505 The set now runs correctly Gave tech modification on the KV27S20 to replace C1267 from a 047 to a 47 tantalum capacitor KV32S40 ser 8053998 Unit has sever over horizontal sweep scan of horizontal sweep Tech replaced Q512 Shorted and Q511 open all elements KV32S40 Measuring the collector of Q512 tech finds the voltage running in excess of 7 volts The voltage on this transistor in inconsistent with the symptom on the
39. Y TIME gt 03 IC SCL LOW lt POWER UP ONLY gt 04 IC SDA LOW lt POWER UP ONLY gt 05 IIC SDA and SCL LOW lt POWER UP ONLY gt 06 Jungle chroma controller no acknowledge lt POWER UP ONLY gt 07 Video switch no acknowledge lt POWER UP ONLY gt 08 Tuner no acknowledge 09 MSP no acknowledge 10 NVM no acknowledge 11 M3L TXD LOW lt POWER UP ONLY gt 12 M3L RXD LOW lt POWER UP ONLY gt 13 M3L ENABLE LOW lt POWER UP ONLY gt 14 M3L TXD AND RXD LOW lt POWER UP ONLY gt 15 Compact Text test fail lt POWER UP ONLY gt 16 AV switch cannot power on reset 17 Cannot initialise jungle 18 NVM acknowledge fail after initialisation 19 Multiple devices with no acknowledge lt POWER UP ONLY gt 20 Compact Text run time failure 21 AVSWITCH response failure after power up 22 JUNGLE CHROMA controller response failure after power up 23 Compact Text does not respond 24 Sound processor run time failure 25 M3L bus clock low time out after data sent run time failure 26 M3L bus clock low time out afetr data sent power up 27 M3L bus clock low time out afetr data sent initialization 28 DSP run time failure Replacement of HV transformer Two types of high voltage transformer are used removable or fixed focus cable When replacing a line transformer replace using the original type Type Focus cable Part no A Removable 1 453 169 12 B Fixed 1 453 220 11 DEFLECT Lines tearing w
40. ace horizontally Tech replaced the CRT without authorization his did not solve the symptom KV32XBR45 KV32XBR45 Sony KV27V22 CONVERGENCE CONVERGENCE CONVERGENCE R789 open H state not operational What I m finding is a resistor that appears to be open on this C board It is R789 The value cannot be read nor is it listed in the ESI software parts list Trying another value from 10 to 20 megohms This resistor is in the ground return of the H stat resistor that is installed in the CRT Tech needs to try different values to try and make this set converge horizontally This TV converged with a 10 megohm resistor Unit has mis convergence of red and blue ertical lines They are displace horizontally Tech replaced the CRT ithout correcting the symptom Suggest tech look for R789 and see if it is open It is on the on C board The value is around 10 meg There are two different chassis and CRTs used for this model If they have the older chassis type that requires H stat convergence CRT board has H stat control they need to order the older CRT as per the manual If newer type No H stat then the new CRT as per Service Manual Supplement 1 is needed CRT 8 733 743 05 The H Stat is done using the Yoke ring magnets Unit has over 6 permaloy magnetic on the CRT bell in the area of the bottom of the yoke This is not a good sign It is also a rebuilt CRT We are not going to place more Permaloy str
41. ace period was running in excess of 20 microseconds not the KV32XBR48 Originally dead with shorted traditional 11 5 microseconds Closed inspection was found the IC601 converter IC and horizontal output deflection yoke leads inside the connector were loose and the Sony KV32XBR48 AA 2 Dead _ crimp for the wire to the horizontal winding were not making contact ransistor shorted too The horizontal drive er looked odd but this was not the problem to the terminal inside the connector Cleaning the terminal and prepping the connection was necessary because there was evidence they were burned by the voltage drop in the poor connection Checking the Collector of the Horizontal output transistor the retrace period was running in excess of 20 microseconds not the Sony KV32XBR48 AA 2 Dead ee ic and ee Goat AAAA a T TOE CGS eset Ine pe aA anaa SRS deflection yoke leads inside the connector were loose and the i crimp for the wire to the horizontal winding were not making contact to the terminal inside the connector KV35S36 serial 9027801 Unit goes dead after 10 minutes after the power supply was After running the television for over 1 hour with the CRT repaired Q601 amp Q602 were not running disconnected It was determined the power supply deflection and un SEERE aa SER hot they just shorted They were replace 4 horizontal deflection were all working It was further decided to imes Each time the transistors lasted 10 change the CRT needs to
42. al 8126359 the sound is increased to a 60 to 80 level the CRT This symptom is called acoustical vibration It is caused by the Picture ill exhibit an effect on the sides sound energy from the speakers coupling acoustically through the Sony KV27S22 AA 2 NAAR resembling a water fall effect It CRT frame to the Aperture grille inside the CRT The vibration disappears if the audio is muted or ifthe causes the aperture grille assembly in the tube to vibrate audio level is dropped down to a lower Suggested customer use external speakers level Checking the Collector of Q503 Pin output we found the voltage running in excess of 38 volts Q503 B Unit has sever hour glass was less than 0 volts and had no parabolic wave on distortion Otherwise all other it Measuring CN116 8 we found less than 3 volts Sony KV32XXBR45 AA1 Pincushion laspects of the picture is normal peak to peak of a vertical parabolic wave It was hen getting into the tech menu determined that IC 301 30 had no E W correction he HSIZ or HPIN have no effect signal It should have been nearly 3 5 volts PP Replacing IC301 a CXA1477AS corrected the symptom Sony KV32XBR50 AA 2 PINCUSHION lt 32XBR60 Unit has narrow picture and a506 shorted and R571 open hourglass distortion file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 18 of 36 26 1 2004 0 28 03 Sony TSS Logs Sony KV32S42 KV27XBR10 AA2D Symptoms range from T50
43. apacitor in the 200 vdc source Sony KV27V20 has retrace lines no video ha l Sony KV27V40 retrace lines Unit will shut down if left on after the Missing 200 volt source from flyback to CRT driver board Trace broken at CN1781 ilaments warm up Unit has bright screen with retrace lines hen it will shut down Measuring the G2 upply finds nearly 420 vdc but the CRT KV32S22 Retrace lines cathodes are running only 55 volts Disconnecting the CRT socket causes the athode source voltage to rise over 180 olts It appears the CRT is loading down the cathode voltages Unit will need a replacement CRT Disconnecting the CRT and measuring the RK BK amp GK on the KV32S22 serial Unit has bright screen CRT socket we found all of them running at 187 vdc But after ith retrace lines then it will shut down connecting the socket again to the CRT they immediately dropped to 33 volts Unit will need a replacement CRT KV32S22 serial 8011789 Unit has intense KV32822 RETRACE LINEsP U faster with retrace lines then shuts Ir ch will need to replace the CRT 8 733 741 05 down Tapping on neck of tube aggravates he symptom KV32S22 retrace lines Monitoring the C board Blue cathode terminal the tech found the KV32S22 serial 8046606 Blue screen with voltage was less than 70 volts when connected to the CRT retrace lines then shuts down Removing the module from the CRT the voltage raises the voltage to 189 vdc at KB CRT Unit will
44. arity transformer It is suggested the tech replace L511 1 406 ax machine makes when listening to it over607 41 C520 1 101 821 00 002 mfd 500 vdc R506 1 215 a telephone connections 861 00 47 ohm 1 watt Metal film file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 28 of 36 26 1 2004 0 28 03 Sony TSS Logs Sony Sony KV35V68 KV27V40 KV27FS13 AA 2 BA4 Syscon syscon The suspected root cause is the VBI inserter serving the areas in question These provide the data by region which would result in this problem occurring in all sets in an area The postal code information is that will allow Gemstar to figure out which VBI inserters may be causing the problem In our TVs the Gemstar side software may be upgraded from the VBI via these servers The servers receive their information from Gemstar via modem A corrupted download to a VBI inserter could result in entire areas V will turn itself on by itself being affected This is especially true for cable TV and the cause may be an inserter at the cable company which can be resolved by Gemstar In this scenario resetting the TV set will solve the problem for maybe short while but if the VBI inserter is still sending bad data The set will re load the bad patch and the problem will occur again Which is why resetting the Guide will not correct the problem In any case without the info requested Customer zip code and symptom sent to your
45. ct KV32XBR76 Unit has poor color registration but color bars appear near normal But when cross hair pattern is put up on the screen there are no blue vertical line There are red and green vertical line and all three colors of horizontal line POOR COLOR file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 19 of 36 26 1 2004 0 28 03 Sony TSS Logs Sony KV36FV15 KV36XBR250 AA 2 Poor edge Focus Readjusted main focus control on vivid mode In the tech menu lower the setting of RDR4 GDR4 and BDR4 from 44 to 37 this Poor focus on outer area of pix Characters lowers the contrast A low contrast and picture level improves the Poor edge Focus or graphics on other area of screen look outfocus on the outer area of picture Able to improve outer focus on of focus KV32 and 36XBR200 KV32 36FV1 by adjusting Hamp and DCSF But on the new models chassis AA 2W Hamp and DCSF had no affect Readjusted main focus control on vivid mode In the tech menu lower the setting of RDR4 GDR4 and BDR4 from 44 to 37 this Poor focus on outer area of pix Characters lowers the contrast A low contrast and picture level improves the or graphics on other area of screen look outfocus on the outer area of picture Able to improve outer focus on of focus KV32 and 36XBR200 KV32 36FV1 by adjusting Hamp and DCSF But on the new models chassis AA 2W Hamp and DCSF had no affect KV32S40
46. ction Replace line output transformer T803 Locks when hot Replace IC202 MSP3410 Shuts down when hot Replace IC202 MSP3410 FUNCTION No TXT No OSD Check zener diode D817 5 1V on main PCB Comes on then switches to standby Standby LED flashes twice 1 Check field output chip IC500 STV9379 2 OK if D505 disconnected Check zener diode D505 MTZJT7736A for leaks 3 No change if D505 disconnected Replace memory chip NVM IC2 Does not got into standby mode completely picture disappears but line continues to run 1 Check Q602 Q603 and Q604 in standby switching circuit Check reservoir capacitor C615 2 Above components replaced HT not at 135V Replace error detector chip IC602 SE135N Pulses in and out of standby RY600 clicks each time Check Q601 2SC3852A D603 6 8V zener and R634 22R on primary side of PSU Degaussing incomplete Replace relay RY600 with part number 1 755 018 11 TUNING MEMORY Intermittently channels change Replace tactile switches S9001 and S9002 on D board GEOMETRY E W bowing Excessive width Check R870 1R 1W OTHER No OSD No TXT Check zener diode D817 5 1V on main PCB Intermittently volume bar appears Replace tactile switches S9001 and S9002 on D board Incomplete or messy OSD and menus TXT OK Replace IC1001 SONY Servicehilfe Datum Ref Nr Modell 13 03 98 TV01998 AE 4 BC 4 BE 2 BE 2A BE 3B BE 3D BE 4 BE 4A BE 5 TE 1
47. e input of the comb filter IC3504 2 on the rear I O circuit board The video is perfect However the Luminance lout IC3504 9 is broken into pseudo square waves that are random in size and shapes This indicated the Combfilter was not working Sony KV36FS12 AA 2 NoiseY video Further checking discovered the FSC 1C3504 37 which is a Sue ee Lorenin 3 58mhz carrier was reduced to a 60hx pulses At CN271 15 we i found the FSC signal normal Problem was an open trace between the connector CN274 15 and C3578 located inside the combfilter shield located at coordinates C2 on the UY board asked the tech to enter the tech menu and change the setting in the VSS parameter from 0 to 1 Also change CDMD from 0 to 3 This relates to the bulletin TV420 However this did not correct the symptom had the tech scrutinize the picture very closely and he discovered the image begins to have a slight sync Son KV27V42 BA4 OSD DEE M stability prior to the event where the set displays the words DVD y how on ihe Saran p had the tech interrogate the composite video out of the DVD player and look for any anomalies in the composite video vertical blanking interval and horizontal sync This unit uses sync to determine if the input port is live with valid sync If sync is missing or corrupt the OSD will show the words that are defined by how the input label programmed This unit may have a problem with the DVD player Sony KV27S22 Seri
48. eck the intergrity of IC451 was able to get the beam to move up and down with this test We had the same type of Data and clock going to all peripherials unplugged the P board and started the set again The Data and Clock now changed dramatically Instead of a 120 Microsecond pulse train it increased to was 1000 microseconds Unit has defective P board This is a PIP module file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 16 of 36 26 1 2004 0 28 03 Sony TSS Logs Sony Sony Sony Sony KV32XBR76 KV32S25 KV32V25 KV32XBR50 KV32V25 KV32XBR250 FN AA 2 no high voltage No Highvoltage No Highvoltage No Highvoltage no video Noise Video KV32XBR76 Unit will not turn on No high oltage Measuring the condition of the D1409 is shorted KV32S25 Unit will not develop high voltage hen the set is turned on no high voltage appears The set has sound and has a lashing light on the front indicating the set is still in a stand by mode waiting for IK pulse feed back acknowledgement from the jungle IC KV32V25 serial 7014651 Unit has no high voltage Sony KV32XBR50 No high voltage Has ound Tech claims all B s are normal rom power supply however no high oltage KV32V25 Unit has no video when using the ront input jacks All other inputs are O K Sony KV32XBR50 This customer has a Goldstar 8mm VHS dual deck VCR located under this television
49. en Geometry Service Design Status Sound IF adjust Error Menu FE 2 Stereo v1 30 Factory data FFh FFh MSP Device MSP3411G 4 Move to the corresponding adjustment item using the up or down arrow buttons on the Remote Commander Press the right arrow button to enter into the required menu item 6 Press the Menu button on the Remote Commander to quit the Service Mode when all adjustments have been completed uN Note Before performing any adjustments ensure that the correct model has been selected in the Model Setting menu e After carrying out the service adjustments to prevent the customer accessing the Service Menu switch the TV set OFF and then ON ERROR MENU E02 E03 OCP OVP N A E04 VSYNC E05 IKR E06 IIC E07 NVM E08 JUNGLE E09 TUNER E10 SOUNDP E11 8V ooooooo00o00o0 WORKING TIME HOURS MINUTES 19 SERVICE Offset R Offset G R Drive G Drive B Drive Peak Freq Luma Delay N a aS Sco White Peak Subcont Subright Subcol Subsharp Cutoff Br Br OSD Br TXT ooooo0oo0oo0oo0o00000000 zSHAMNMDMNDHHWHWAHDHDHDMHD OD AaAntTwWwWWWAaOI I WBWWWwWW u GEOMETRY V Linearity V Scroll Left HBIk Right HBIk V Angle V Bow H Centre H Size Pin Amp U Corner Pin L Corner Pin Pin Phase V Slope V Size S Correction V Centre V Zoom Magenta DVD oooooo0oo0oo0o0000000000 SO DDD ADD 0 2 DO OC Gk EK ps el eS ee eX ES Ee eS IF ADJ
50. er supply However when trying to discover why the IC601 was shorted we could not find any evidence of line surges that might have shorted the VDR601 or open R618 But when checking the secondary of the Flyback transformer at the outputs of D560 and D561 we found nearly 4 6 ohms from the 13 to the 13 volt source Floating IC541 2 amp 4 removed the shorted condition Unit has a shorted vertical output IC541 shorted from the 13 volt to the 13 volt if IC541 2 amp 4 KV27V40 8112963 Unit is dead Only the imer LED flashes file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 9 of 36 26 1 2004 0 28 02 Sony TSS Logs Sony SON KV27V40 KV32FS13 BA4 BA5 Dead DEAD Unit is dead Only the Timer LED flashes Main Power supply will not produce secondary voltages hen powered up the set will turn on but the will Chirp There are apparently no shorts circuits on the secondary of the main switcher supply However when trying to discover why the IC601 was shorted we could not find any evidence of line surges that might have shorted the VDR601 or open R618 But when checking the secondary of the Flyback transformer at the outputs of D560 and D561 we found nearly 4 6 ohms from the 13 to the 13 volt source Floating IC541 2 amp 4 removed the shorted condition Unit has a shorted vertical output IC541 shorted from the 13 volt to the 13 volt if IC541 2 amp 4 Q502 C pulse was corrupt More te
51. evision occurred This test revealed a break down in the High voltage connection at the High Voltage anode button The silicone sealant did not seal between the HV button and HV cup Cleaning the area around the anode button replacing the anode cap and resealing the connection with high voltage silicone sealant Problem is best heard in the video input mode with no signal put to Sony KV27S20 Unit has a low pitch whine the input It can be seen with an oscilloscope on one of the output in the left audio channel pins of IC1401 but not on the input Part number is 8 759 369 39 IC1401 corrected the trouble KV27S36 All SAP Stereo and mono functions come from the Tuner assembly and nowhere else If a problem exists for the S A P feature all circuitry relating to the feature is replaced when the tuner assembly is replaced Recommend the Tuner IF MTS decoder assembly Replacement corrected the symptom Sony KV27S36 Unit has choppy SAP audio Stereo 0 K KV27S45 KV27S45 serial 8046950 Unit has a very Tech needs to add a resistor in parallel with R432 to effectively rapid change in volume when increasing reduce the value of R432 This changes the voltage divider ratio to he level from minimum to 4 notches above the volume control circuit and makes the volume circuit more linear in operation KV27V65 Audio level adjustments will not increase in a linear fashion instead the audio will increase rapidly in the firs
52. f these are shorted KV32XBR96 HORIZONTAL pin amp circuit had tech look at Q501 E the voltage should be about 16 volts KV32XBR95S Unit has an extremely wide This is the pin modulator input for pincushion correction In this TV it was 2 volts A resistance check finds the ohm value to be under 10 ohms Tech needs to check D511 and Q505 Son KV20EXR20 HORIZONTAL KV20EXR20 Insufficient horizontal sweep On the G board all the B on the supply IC503 is defective y SWEEP IC603 is the wrong IC for this chassis SEC135 KV27V22 intermittent snow KV27V25 Unit has intermittent snow in the picture zThe tuner pn 8 598 340 20 was replaced Now the set has a symptom here the remote control causes the set to enter the video input mode when the hannel is selected Also the set will enter he video input mode if the and another brand of remote that operates a stereo receiver will put the set into the video input mode instructed the tech to enter the tech mode and set the ID codes ID0 25 ID1 23 ID2 47 ID3 0 ID4 27 1D5 135 ID6 1 ID7 0 Write these in memory then press 8 Enter to initialize This corrected the problem KV36FV75 KV32XBR10 NO AUDIO no audio KV36FV75 Unit has no audio But also has ID codes are 0 25 1 55 2 47 3 0 4 155 5 143 6 6 7 0 no OSD stating Main or Stereo Main hich is correct Initializing the EEPOM did not correct the trouble picture is fine Tech will be returning
53. feed back acknowledgement from the jungle IC KV32S65 intermittently the set will turn off his process takes about 30 60 minutes he set can be turned back on again ifthe Sony KV32S65 AA 2 shut down power button is pressed twice Sometimes he set comes on in the Video 1 input mode hen it was in the tuner mode before it shut This could be caused by the CRT Suggest the tech disconnect the CRT socket an run the set with the tube disconnected and see if the set shuts down with the CRT disconnected With the tube disconnected the chassis ran 3 days without shutting down A CRT was substituted and the problem never showed up on the other CRT Replaced the CRT and it corrected the symptom KV35V36 serial 9024090 Unit has an intermittent shut down that only occurs after wo or three days When shut down occurs Sony KV35V36 AA 2 Shut down he LED in front is Blinking and raster disappears but sound is OK When flexing heating or freezing the main circuit board he problem can never be recreated Tech needs to order the CRT Since we are not able to confirm any trouble with chassis The CRT is nearly out of Warranty It is recommended that since we are unable to determine any chassis fault the problem must be due to CRT arc over Note after 4 weeks lof normal operation the CRT seems to have corrected the symptom The vertical out is shorted and burns out the 15 volt supply The resistor R561 is a 1 4 watt and R562 is a 1 2 watt These resisto
54. g the JAll had checked all voltages on the IC301 and everything looked ervice mode the audio returns After normal Out of desperation the tech ordered the IC301 and resetting the EEPROM the set enters the changed it Tech changed the jungle IC301 and it fixed the reset mode normally but the sound is gone problem This answer might save someone some time The tech again Tech replaced IC001 1C003 and K was very happy to let this baby go home after wrestling with it for board without effecting the symptom many hours Thanks to Jesse Mann L A California file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 3 of 36 26 1 2004 0 28 02 Sony TSS Logs Solution Replace IC404 audio output Sony installed wrong IC Problem Volume control doesn t work Instead of AN17820A they installed AN7125Z The correct part is Sony KV24FS100 BA6 Audio Volume bar OK just volume stuck in high 6 701 104 01 AN17820A had already three units with the same loud audio problem All of them KV24FS100 BA6 serial number 4108227 4108225 4108261 KV32TS27 7039676 Unit has an Sony KV32TS27 LN1 audio intermittent squeal in the audio when trine Tech needs to replace the Audio IC SBX1627 11 o receive a stereo broadcast All TV s that use autoprogramming must have 2 inputs to the CPU that will tell the CPU it will store a channel in its memory These inputs are AFC crossover voltage amp presence of horizontal sync
55. g the error count Flash Timing Example e g error number 3 Table 2 StBy LED ON ON ON ERROR MENU E02 OCP E03 OVP N A E04 VSYNC E05 IKR E06 IIC E07 NVM E08 JUNGLE E09 TUNER E10 SOUNDP E11 8V OFF OFF oooooooo0o00o0 WORKING TIME HOURS MINUTES Note To clear the error count data press 80 on the Remote commander Layout of each control x LL Purity BMC Hexapole im 3 3 Focus Adjustment 1 2 3 Receive a television broadcast signal Normalize the picture setting Adjust the focus control located on the flyback transformer to obtain the best focus at the centre of the screen Bring only the centre area of the screen into focus the magenta ring appears on the screen In this case adjust the focus to optimize the screen uniformly Focus _ COS6 FE BIESIHW Screen 18 3 4 Screen G2 White Balance Adjustment in the service mode using the remote commander G2 adjustment 1 Input a dot signal from the pattern generator 2 Set the Picture Brightness and Colour to minimum 3 Apply 175V DC from an external power supply to the R G and B cathodes of the CRT 4 Whilst watching the picture adjust the G2 control SCREEN located on the Flyback Transformer to the point just before the flyback return lines disappear White balance adjustment for TV mode Input an all wh
56. gnal on it Has OSD and Sound Timer LED not rooming in he Tach Fre hace found Th 4 Sony KV27S40 Raster None flashing Tracing the video signal found that On fe Tah MS Ihe C eiS TONNE Te para merer a i or fsc was set to 0 We set it to 1 and restored the chroma and it was getting to the comb filter but no lumi uminance hroma or luminance output KV27S42 Unit has a flashing picture on hannel 2 The raster will increase to a Tech need to enter the tech menu and reset the VSS parameter Sony KV27S42 Raster None point where the raster will disappear with from 0 to 1 and the CDMD from 0 to 3 Channel 2 is broadcasting a he Front panel LED flashing 5 times signal in the VBI area of the video signal indicating an AKB failure file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 23 of 36 26 1 2004 0 28 03 Sony TSS Logs Sony KV27V22 KV27TS27 AA 2 RASTER Red Raster Red KV27V22 Serial 8049735 Unit has red creen with then no raster G2 voltage drops to 3 volts Tapping on neck of tube CRT Due to this symptom and the intermittent nature of the auses the picture to return to normal Techtrouble suggest that we replace the CRT A68KZJ50X ould not duplicate the trouble again After his the set ran fine When shorting out the RGB cathodes on the CRT the set will get a perfect black and white picture but shorting out the RGB inputs on the CRT board the set is missing green Trouble is a defecti
57. hen hot 32in models only Replace line driver transformer T804 No sync in TXT mode Replace IC1001 PICTURE Horizontal interference in picture during first half hour 1C606 is defective Therefor unstable 9V pin 3 of IC606 Replace 9V regulator IC606 Ref Description Location Part no 1C606 LM2940T 90 D board PSU 8 759 267 25 Visible arcing interference on screen when appliance does function Intermittently switches off when switched on Replace line output transformer T803 Partially blanked horizontally Check zener diode D817 RD5 6ESB2 in blanking circuit for leaks Overbright nearly negative picture Access service mode and enter TT07 to clear AUDIO Hum and or buzz of the headphones and or speaker when vol is low Deflection unit generates interference On board A solder side add a thick wire AWG18 200mm long between pins 6 7 and 8 of IC203 and pins 29 and 30 of CN1 Given its critical position the wire must be kept away from board A Part no Ref 190090227 Wire AWG18 No sound Headphones OK Fau t 1 PS6001 O C Replace audio output chip IC1200 TDA7264 Distorted or loud crackling from audio Check audio demodulator processor chip IC202 MSP3410 POWER EHT comes up briefly then nothing No error code Excess current protection system operating Check line output transformer T803 Intermittently switches off when switched on Visible arcing interference on screen when appliance does fun
58. hen shit A Rew eel inspection of the cathode driver IC IC9003 amp IC9002 had holes in them just above Pin 6 PN 8 759 360 83 Also new module KV32V16 serial 7089163 Unit will not stay Sony KV32V16 AA 1 shutdown on Goes into shut down immediately after urn on Saute down as itdid on tho WERE damage Open R5096 on the D board a 0 470hm open Replace all 3 cathode driver IC s corrected the problem KV27S42 Unit will turn on but will shut down after 1 second The LED in front lashes 5 times If you check the Error odes of 4 times which indicates the set Sony KV27S42 BA4 shutdown has a vertical failure However when we jumper the relay RY602 AC contacts the et will come on and id power button is pusher the set will have a normal picture ith sound But obviously it will not turn off While running in this condition discovered the base of Q610 was in saturation Floating the collector of Q610 allowed the set to run ithout the jumper on the relay On Off operation was normal Measuring the anode of D620 found it to be 4 5 volts where the cathode was at 7 5 This appears to be a 10 volt zener Replacing the diode D620 cured the trouble file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 27 of 36 26 1 2004 0 28 03 Sony TSS Logs Unit will shutdown immediately after turn on Tech replaced the D board After the D board was replaced the set turned on with What the tech missed is not checking
59. here is a NTSC encoder which injects pesos Dias Ue tint phase ant andg the 3 579547 MHz color oscillator signal in the video If this olor lock up problems only on the Hughs Sony KV35S26 AA 2 CHROMA atellite receiver VCR and over air signals oscillator is too far off frequency it will not phase lock with the Fave cold color lock up 3 579545 MHz in the television This is a software problem with the i Satalite receiver A software download will be available to all receivers in Late 2000 to correct this problem Suggest the tech look very close to the connection s to 10351 4 This the Chroma AFDC filter Components R354 C354 amp C355 Unit has random chroma phase shifting jare in the AFCFIL circuit It is possible the trouble is a Jungle IC but Sony KV35S26 AA 2 eran he tint will vary radically NTSC color bars Before replacing it is recommended to check the aforementioned are not stable Barber Polling effect of components first Note when checking the components it was olors on bars found that C354 has glue touching each end of the device The glue effectively changed the value of the device Cleaning the glue and reinstalling the device corrected the problem file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 4 of 36 26 1 2004 0 28 02 Sony TSS Logs The customer is using two different RF sources Cable TV anda KV36XBR200 When the customer is using satellite dish The CATV is being feed into the
60. hm resistor Tech noticed the 15 volt source was lower than expected It was only 10 volts It is not unusual The voltage is normally 12 volts What the tech missed is the 15 This voltage must be there in order for the set to have any vertical sweep Resistor for the 15 volt source from the Flyback was open D530 and R537 a 0 47 ohm resistor MODEL KV36XBR450 PROBLEM Will only degauze the first time the unit is turned Purity Intermittenton and may not degauze again until the unit is unplugged and reset for at least 10min Unit had an arcing inside the flyback ransformer The tech replaced the ransformer now the unit has a bright band at the top of the screen The tech replaced he jungle IC without affecting the symptom Unit will not get raster even if the G2 is raised all the way up We still don t geta When monitoring the voltage across the Vertical deflection coils of bright screen with retrace lines Tech the yoke we found it to be just over 8 volts This is a problem No requesting the Feature Box This willbe a D C voltages should ever be across the vertical deflection yoke aste of time because the feature box is indings Unit has an R554 open not necessary had tech short the CN1761 1 2 3 amp 6 together This should give a perfect black and white picture But when this was shorted we had a black and white picture but the picture still was flashing ee ee ae Since the jungle IC was already replaced it
61. hort to ground on the IR12 volt line located at the output of IC202 3 4 located on the A board This short was caused by a solder splace on that circuit board When monitoring the Horizontal output collector we found the 140 dropped slightly at turn on But the Horizontal driver Q501 C dropped to 85 and back up to 140 had the tech to remove the horizontal output transistor and try starting up the set again After power up measure the Q501 C horizontal driver transistor It should be about 85 volts and stayed This told us we were looking at a shutdown symptom Checking all secondaries we found nothing shorted Replaced flyback which corrected trouble KV36XBR200 serial 9016329 On the far SCREEN extreme left and right side of the screen TEMPERATURE tthe picture has a yellow color temperature here it should be white Sony KV36XBR200 AA 2H KV32S40 Brightness shading in brighter on he right side than it is on the left side of the creen Symptom only shows up in the uner mode VCR in video input mode is ine Unit has CATV box Scientific Atlantic model 8580338 Sony KV32S40 AA 2 shading Unit will shut down each time the Remote SERE a oo headphones circuit is turned on KV32S25 Unit will not develop high voltage hen the set is turned on no high voltage appears The set has sound and has a KV32S25 shut down lashing light on the front indicating the set is still in a stand by mode waiting for IK pulse
62. hutdown hutdown Waveform at the collector of the D530 D531 After disconnecting these we found the set will run horizontal output appears normal ith D530 disconnected Checking this device it passes the static Horizontal drive is normal if the horizontal check This component is the 15 volt source It was suggested to output transistor is removed replace D530 This corrected the problem KV32S65 Unit goes into shut down Will allow HV to com up but goes into Open coil that supplied the B to the audio controller and buffer Sony KV32S65 AA 2 shutdown immediate shut down afterwards At no chips This loss in voltage caused the audio processor chip to load ime did we ever have Dataon9 amp 10 0f down the Data and Clock lines and cause this symptom he Jungle IC KV35V35 serial 9011978 Unit flashes bright Sony KV35V35 AA 2 SHUTDOWN Been ecke 2 ELECTA Unit has a defective CRT A89LJT80X ill be in the VIDEO 1 mode What the tech missed is not checking the 200vdc source at L9005 Unit will shutdown immediately after turn 2 the C board This is the 200 vdc pealking coil located on the y CRT socket This voltage was 0 volts Measuring the resistance on Tech replaced the D board After the D d atthe 2 Ti h CRT cathode driver IC board was replaced the set turned on with ia groune Alte 200 vee INpul to sae eaP er KV36XBR450 AA2W shutdown ound and the screen briohtly lit with IC9001 IC9002 IC9003 6 found 6 ohms to ground Closer Palace nes t
63. igh produce the B Measuring the input voltage of the relay to HOT oltage Has sound ground found it to be 150 volts DC mode But on the other side of relay we has 3 volts DC mode Unit has defective RY602 relay Unit had a blown IC601 and R607 Tech had failed to check the condition of the Power supply output for the 135 vdc source It was Unit is Dead Tech replaced the IC601 and discovered there was a 1 2 ohm short to ground caused by a R607 and the Flyback but when power shorted protect diode in the secondary of the power supply oly SERIE alk naad as reapplied the set destroyed the power cannot stress enough the tech needs to check all loads on the secondary of the power supply for shorts and use a variac to start up all power supplies All parts changed earlier are destroyed and need to be replaced again file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 7 of 36 26 1 2004 0 28 02 Sony TSS Logs never recommend that after replacing these components in the power supply that the set have full line voltage applied to it The odds are very high the new components will be instantly Suggested the tech use a variac to do these tests This power supply should start running at 10 vac as a line source The current ee ee should never go above 100 ma during a no load test Max 800 ma KV D aie A EE and Open during a normal load When running this power supply at 15 volts Sony Bu ead as rat TS t ee e
64. ine and found the PIP tuner was responsible for loading down the DATA line KV32XBR85 Unit has no raster Has ound and weak OSD Stand by light is not lashing KV36FV15 Unit will turn on with the front panel control but the set will not develop raster or sound The high voltage will turn but no raster After 3 minutes the raster and ound will appear KV20VM20 Raster None Unit did not have any Horizontal blanker pulse to pin 19 of the Sony KV20VM20 Unit has no raster but Jungle IC Shorted Z1403 Unit had 60 Peak to Peak at the FP of ound and OSD are O K flyback At cathode of Z1403 should be 7 volts peak to peak Replace diode and restored normal operation KV26V36 Raster None had tech check the must haves The only thing that was not present was Heater voltage had the tech remove the socket and measure the total resistance of the filament source by measuring the H1 amp H2 terminal pins on the C board It was open H1 amp H2 at the flyback were less than 1 ohm Checking CN503 found the black wire was loose and fell out of the connector when unplugged from the main board Connector wire would stay in place if reseated Pushing connector back in place corrected the trouble KV26V36 Unit has no raster Further hecking we found the set had High voltage and vertical sweep Just no filaments KV27S20 Raster None KV27S20 Unit has no raster Tech had replaced CRT but the symptom was not Open trace o
65. ips on this CRT Unit has nis convergence of red amp blue ertical lines which are displaced horizontally Tech replaced the CRT This did not solve the problem KV27V22 serial 8051260 will not onverge the bottom red green or blue horizontal lines It needs replacement file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 6 of 36 26 1 2004 0 28 02 Sony TSS Logs KV27V40 Unit has vertically skewed onvergence Center vertical convergence is Skewed with red skewed counter Sony KV27V40 BA4 CONVERGENCE lockwise by 0 5 inches and blue skewed Problem is caused by a defective CRT lockwise by nearly the 05 inched Green lines are straight This phenomena is normal and is caused by the IK pulses that are produced at the instant of turn on Even thought the cathodes are Unit has preglow at the instant the letel ath ill b Rare elevision is turned on The preglow shows pot campietoiy warmed up Mere wi2 92a S19 saat Sony KV35S40 AP CRT z current produced by just the IK pulses Since these pulses are at in the lower left and right hand corner and s r fth tays until the raster appears the top portion of the tube or on the curved funnel portion o le CRT this symptom is common and is not considered a defect in the CRT This set was an older unit has seen many hours of use The tech Unit cycling on and off as soon as the set is as instructed to ESR all electrolytics in the power supply After Sony KV32X
66. it as found while moving the wires around the yoke connector the symptom changed slightly But when tugging on the wiring going into the deflection yoke the tech found a significant change in the vertical deflection scan There isn t a schematic for the yoke assembly but a small connector inside the yoke housing where the 3 controls were mounted The connector is called P16 lt was not soldered very well It had thin solder across the land to the pin but hat looks like pin oxidation it from making a good electrical connection Resoldering the connection returned the set to normal operation Tech needs to replace IC561 D561 amp C565 Gaining a little more information from the tech found out the set actually had a No Raster condition and the timer led was flashing The G2 was increased tin order to get this washed out picture The probable cause of this problem is the IK pulses may be too low for the Jungle IC to correctly interpret them By raising the G2 voltage the IK pulses are raised up to a point where the Jungle ill acknowledge them But by then the RGB drive is too great and a overdrive condition occurs on the CRT Tech needs to check the components in the IK buffer circuit on the C board D1792 3 9 volt zener diode amp Q1790 2SA1309A KV32XBR45 WEAK VIDEO Sony KV32XBR45 Unit has a very faint picture But the OSD is fine Problem shows up in the tuner and video input mode Tech ordered Q401 but did not correct
67. ite signal from the pattern generator 2 Enter into the Service Mode by pressing TEST TEST and MENU on the Service Commander 3 Select Service from the on screen menu display and press the right arrow button on the remote commander 4 The Service menu will appear on the screen See Page 19 5 Set the Contrast to MAX 6 Set the R Drive to 25 7 Adjust the G Drive and the B Drive so that the white balance becomes optimum 8 Press the OK button to write the data for each item 9 Set the Contrast to MIN 10 Adjust the G Cutoff and the R Cutoff with the left and right buttons on the remote commander so that the white balance becomes optimum 11 Press the OK button to write the data for each item SECTION 4 CIRCUIT ADJUSTMENTS 4 1 Electrical Adjustments Service adjustments to this model can be performed using the suppliedemote Commander RM 887 How to enter into the Service Mode Turn on the main power switch and enter into the stand by mode Press the following sequence of buttons on the Remote Commander mH 5 ON SCREEN DIGIT 5 DISPLAY D A gt VOLUME TV gt TT will appear in the upper right corner of the screen Other status information will also be displayed 3 Press MENU on the remote commander to obtain the following menu on the scre
68. le C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 13 of 36 26 1 2004 0 28 03 Sony TSS Logs Unit has no high voltage LED in front is KV27S25 lashing on and off after power up SONY AA 2 HIGH VOLTAGE There does not seem to be any horizontal drive to the Horizontal drive transistor Defeating the Horizontal output by removing the collector connection still will not allow Horizontal drive to appear at IC351 37 This pin is sitting at nearly 8 5 volts not the 3 volts it is supposed to be Also IC351 38 the HOFF AFCPIN is at 3 3 volts hich is normal Unit has a bad IC351 CXA2025AS Unit has severe over scan of horizontal weep Tech replaced Q512 Shorted and Q511 open all elements Sony KV32S40 AA 2 horizontal Measuring the collector of Q512 tech finds the voltage running in excess of 7 volts The voltage on this transistor in inconsistent with the symptom on the screen of a narrow raster that is hourglass Shaped L511 and Q512 are burning up Suggest the tech replace the following additional components D502 D503 D504 C511 and C513 Unit has a insufficient horizontal sweep he sweep is reduced by 10 to 15 on the left side and 2 5 on the right Sony KV35V36 AA 2 horizontal When going into the tech set up parameters and adjusting the HSIZ value the sweep will change to full sweep Monitoring the voltage at the Collector of Q512 the voltage will vary from 27 volts HSIZ set to 22
69. n each leg measured to ground Removing the capacitor and measuring the DC resistance across the cap measured 175 ohms Replacement lof the capacitor corrected the symptom lamp and the set is muted a loud pop is heard in the right channel ANU 1 AUDIO regen 8 741 592 2 8 741 100 56 original number SBX1592 02 corrected the symptom BA4 audio When Isolating the mute transistors find that removing the Coupling capacitor C223 stops the muting action This capacitor appears to be monitoring the B used for the audio output IC We do have a slight fluctuation of voltage 0 3 0 5 volts to the audio KV27V40 8024539 Unit goes looses audio joutput when the volume is maximized out this is coincident to load on voice peaks or when ever the volume is variations of loud to soft sounds However when this variations moved to a high position the volume will reach the 0 5 volt deviation the audio will mute R210 is good and mute for about 1 second so is Q204 We replaced C223 with a new one and even tried to reduce the value to 1 mfd but we still get the same muting effect on voice peaks IC401 has been replaced on an earlier visit with no changes in the symptom It is unknown why this is causing this symptom KV27V65 Unit has a 60 hz buzz in the Tech needs to add a ground wire to the ground side of R544 to the audio will near minimum level is selected ground under the flyback transformer KV27V16 Unit has no audio but when enterin
70. n the CRT driver board causing the IK pulses not to be orrected Power light still flashing indicatingreturned to CN1761 6 not to be fed back into the jungle chip he unit is in the stand by mode file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 22 of 36 26 1 2004 0 28 03 Sony TSS Logs This symptom is inductive of a problem in the data or clock bus Measuring the SCL amp SDA found the SCL was running at 1 volt ee eee wo oma ea ose peak to peak and the SDA was at 4 97 volts PP had the tech enter of the screen The line is elevated Sony KV32S22 AA 2 raster none start pulling all of the stand up boards out of the mother board to SE ae SU IE isolate the SDA amp SCL lines After the main tuner was removed the SCL returned to normal Replacing the main tuner corrected the trouble KV32S25 Has no Raster When the G2 is increased the set has a partial raster but brighter at the top of the screen then the The symptom indicates the set has a vertical deflection failure but Sony KV32S25 AA 2 Raster None bottom Measuring across the vertical yoke imore precisely a power supply failure for the _15 volts source The indings we find there is a voltage of tech either has a open R536 47 ohm or open D530 approximately 8 volts These is sound and hannels can be selected KV32S65 serial 8014809 Unit has no had tech measure the G2 voltage at the CRT It was only 54 volts Sony KV32S65 AA 2
71. nable Disable Destination ADEKR Destination BL Destination ADEKR Destination U Destination ADEKR Destination BL 21 Virtual Dolby on off Subwoofer MPB Bass enhancement Enable Dot structure C M chroma trap ination ADEKR Tuner selection SONY ALPS BBE enable disable BBE menu line enable disable Auto AGC Adjustment AM from baseband enable disable Enable Disable YC3 connector Enable Disable RGB priority RGB auto detect enable disable On timer enable disable Manual AGC Adjustment Enable Disable X26 countermeasure N problem Enable Disable ACI feature Force PAL video Un force PAL restore normal video condition Enable Zweiton D K2 system 6 5 6 74 Enable Zweiton D K3 system 6 5 5 74 Balance full left Balance full right Local keys test Enable Disable watchdog Set 14 9 zoom mode Set SMART zoom mode Set 16 9 zoom mode Set ZOOM mode Set 4 3 zoom mode Display Error and Working Time menu USEFUL INFO Error reader The BE 3D chassis supports the use of the Error Reader This jig is available under part number S 188 900 10 price code S The displayed code shows the actual error of the TV set Refer to the service manual or the table below for an explanation of those codes ERROR CODES 02 Protection circuit trip lt AN
72. nd delay before the Degaussing relay unlatches here is only a 10 second delay for the picture to appear after power up KV27S45 Serial 8056889 Unit has sever purity error in the lower right hand corner of he picture This phenomena is normal and is caused by the IK pulses that are produced at the instant of turn on Even thought the cathodes are not completely warmed up there will be a slight amount of beam current produced by just the IK pulses Since these pulses are at the top portion of the tube or on the curved funnel portion of the CRT this symptom is common and is not considered a defect in the ORT don t know what the latch time is for the Degauser relay thought that it was a bit excessive But even though the latch time is excessive the posistor THP601 should increase high enough in resistance to drop the degaussed current to minimum levels The trouble was corrected by replacing the THP601 The Q distance has been severely compromised because the aperture grill has shifted Unit will need a replacement CRT KV36V15 PURITY KV36FV15 serial 9026985 Unit has in the No magnets appear to have moved into a position that would this lower left corner the tube has a sever onvergence and purity error effect It cannot be adjusted out It has been determined the CRT needs replacement file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 20 of 36 26 1 2004 0 28 03 Sony TSS Log
73. need a replacement CRT Unit has the 200 vdc cathode source voltage measures 179 vdc but hen measuring on the cathode directly the voltage is very low 22 vdc Disconnecting the socket causes the voltage to rise back to 198 vdc Unit has a defective CRT When the set shuts down All Cathodes ofthe CRT are only 66 volts With the CRT disconnected from the module the RK BK amp GK will increase to 202 vdc Unit will need a replacement CRT Unit has the 200 vdc cathode source voltage measures 179 vdc but KV32S26 Unit has bright screen with hen measuring on the cathode directly the voltage is very low 22 retrace lines vdc Disconnecting the socket causes the voltage to rise back to 198 vdc Unit has a defective CRT Measuring the 200 volt B at the CRT socket we found the voltage Unit has bright screen with retrace lines to be under 126 vdc This indicated the 200 volt source was not hen shuts down running had the tech check R553 a 47 ohm 1 2 watt resistor and it was open Replaced the resistor and the set operated normally Measuring the 200 volt B at the CRT socket we found the voltage KV32V25 serial 7019547 Unit has bright fto be under 126 vdc This indicated the 200 volt source was not creen with retrace lines then shuts down running had the tech check R553 a 47 ohm 1 2 watt resistor and KV32522 RETRACE LINES Unit has bright screen with retrace lines Sony KV32S26 Retrace lines he flyback was changed but did not orrec
74. ntal instability The main B from the power supply is stable A68KZJ50X Suggest the tech try running the set with the CRT disconnected The set runs fine in this mode The horizontal output is running normal temperature Suggest the tech measure the collector of Q571 C It should be close to 4 to 5 volts with beam current It as 9 volts with a normal screen brightness It would drop to 8 volts but never lower than that The Q571 B was at 135 1 and Q571 E as 135 The device is a PNP transistor With these voltages this transistor should be turned off 0 volts on the collector had the tech remove Q571 C and the set ran fine The collector then measured 135 vdc Transistor checked statically OK but suggested the tech replace it anyway KV36FV1 SHUTSDOWN KV36FV1 Unit shuts off immediately after urn on Measuring the collector voltage Q502 C finds it rises up then falls to zero Asked tech to remove Q502 B amp E then measure Q502 collector After unit is turned on It was at 135 vdc Q501 C was at 77 vdc Unit has Horizontal drive at Q501 C This indicated the unit had horizontal drive Scope reading showed a 60 40 duty cycle at 63 microseconds There are no apparent short circuits on secondary of Flyback transformer Unit has defective Flyback KV27S40 KV35S40Unit is making a noise internal to he television that resembles the sound a These sounds are apparently caused by loose laminations in the Line
75. o data pulses Unit had a scratched trace leading to the he tuner and it did not solve the symptom tuner assembly Jumpered trace and tuner now runs correctly KV32V25 serial 7036251 Unit has an Tech noticed the 15 volt source was lower than expected It was arcing inside the flyback transformer Tech lv 10 volts It i l Th llv 12 vol replaced the transformer now the unit has aon BR yo Bs not unusual a age mal No Sony KV32V25 AA 2 arcing What the tech was missing is the 15 This voltage must be there in bright band at the top of the screen The order for the set to have any vertical sweep D530 was shorted and ech replaced the jungle IC without 1 lopen R536 the 0 47 ohm current limitter effecting the symptom Sony KV32V26 AA 2 arcing eh 8019814 Arcing inthe Fech will need replacement CRT A80JYV51X Sony KV35V76 AA 2 ARCING KV35V75 CRT is arcing in the neck The CRT is bad KV35XBR48 serial 9014229 TUBE Sony KV35XBR48 AA 2 ARCING ARCING IN THE NECK unit will need CRT A89LJT80XZ The best way to tell if the arcing is related to the HV lead which may be breaking down is to use a high voltage probe Connect the ground to the CRT ground and run the tip of the high voltage probe lover all high voltage connections amp wires If an arc is drawn to the Sony KV36XBR200 AA 2H arcing KV36XBR200 Unit has an intermittent arc probe tip this would mean that a break down in the insulation has KV27S20 lover that will shut down the tel
76. odule Take the second cap and connect the side to pin 6 on the MTS and the side to pin 5 on the DBX module This should give you clean sound but you may not have the fullness that the board would have given you Well a Lack of Fullness is certainly better than a Lack of Sound which is what the customer had before the bypass file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 35 of 36 26 1 2004 0 28 03 Sony TSS Logs A green out of sync pix left side only on all inputs even with no signal kg on crt cba 100vpp kr kb 50vpp Symptom goes away ith p31 on pip disconnected but get horiz lines running thru pix Probably do to ync being on the plug Also reading 90v dc on pin 4 of p63 o on pip cba says 33vdc printed on boardFound ic3203 on pip cba loose Fixed set Maybe this might help someone if they get this mod as it is famous for bad connections Thanks to Jack Kilroy in Wisconsin Sync missing Sony KV32XBR55 FN Preen Picture Checking around the T board we found that the B to the board was missing at connector CN401 4 This should be 9 volts There are no shorts on this line to ground either But checking at the AK board we found a PNP switch transistor Q451 with ring fractures around the pins Resolder the transistor corrects the symptom Unit has Wireless head phones KV36FV27 Audio Missing Unit has audio through he main speakers but not through the ireless headphones
77. oose resolution or picture detail This is normal KV36FV1 Customer is running the elevision on a DSS satellite system Customer claims the set looses focus in the picture when there is a lot of detailed movement file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 11 of 36 26 1 2004 0 28 03 Sony TSS Logs The set has a dynamic focus error Tech needs to see if the Dynamic focus circuitry is running correctly Also before any KV36FV1 serial 9046442 Unit has poor hardware is tested the parameters of HAMP and DCSF should be Sony KV36FV1 AA 2 focus adjusted to see if the dynamic focus is effected When adjusting Deus On ISI and Tight Site ar picture these parameters the values get the best focus when each is mixed lout to 60 The focus becomes poor 2 inches from the left side of the screen and 5 inches from the right side of the screen Since this set has the super flat CRT It incorporates a dynamic focus circuit In other words the focus voltage varies as the beam en SER OR in ii Bi travels from left to right Measuring the Horizontal parabolic wave g form up to the input of the primary of the DF transformer we found Sony KV32FV1 AA 2H focus enter If the focus control is varied through the signal to be normal We were unable to measure the voltages an AU BE meee further because they were potentially focus voltage potential The horizontal parabolic wave form enters the Flyback at the secondary of the
78. r IC2001 1 This Should be 5 volts as long as it is not receiving data Customer has an RCA DVD player connected using the S video input and the S Link too Sony s S Link is not compatible with RCA s G Link input used to control operational functions Disconnect the S link G link connections and restored operations If the customer complains about this symptoms please apply the following countermeasure 1 Check on the A Board which type of T504 is used suffix 11 or 21 2 If suffix 21 is mounted invert L505 polarity Part polarity mark and PCB mark must be opposite L505 polarity is marked ith a dot on top of the coil amp also on the board These dots should be on opposite sides of one another after the coil is remounted KV32FV1 Unit does not operate with remote control Front panel controls are operating OK Unit does not operate with remote control Front panel controls are operating OK Sony KV27S22 Retrace lines Unit has a defective CRT When unit is able to turn back on again the set will sometimes be in the video input mode Unit goes to a bright blue screen with retrace lines then shuts down file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 24 of 36 26 1 2004 0 28 03 Sony TSS Logs Son KV27S25 retrace ies Sony KV27S25 Bright screen with retrace I had tech measure the 200vdc supply line and it measured only 78 y hen unit shuts down volts Unit had defective c
79. ring new oke and needs the part number We have changed several yokes so far as of 4 2 99 WITH LIMITED SUCCESS Performing a complete setup of purity convergence and geometry setting corrects most of the geometry errors However this set will not be perfect KV32XBR200 GEOMETRY KV32XBR200 Unit has just had the new CRT with the attached yoke replaced today o correct the Shoulder Roll off symptom as described in Bulletin 387 However the new ube and yoke did not get installed Instead e are going to contact Sony Bulletin 387 did not mention a THL plate which needed to be adjusted was in the old deflection yoke After following the new bulletin 387R1 we were able converge the set Also the new tube needed 3 magnetic on the bell of the tube to correct a purity error and converge the lower right hand corner KV32XBR200 GEOMETRY KV32XBR200 Unit has just had the new CRT with the attached yoke replaced today o correct the Shoulder Roll off symptom as described in Bulletin 387R2 However the new tube and yoke did not solve the ertical pincushion symptom See bulletin 387R1 KV36XBR200 KV36XBR200 KV36XBR250 AA 2H GEOMETRY GEOMETRY GEOMETRY KV36XBR200 Picture is tilted There is insufficient range in the tilt adjustment KV36XBR200 Serial 9016768 Unit has pincushion error o the top of screen Area around the extreme edges of the fields do not have straight lines Horizontal
80. rs typically are both the same wattage It is suggested to replace both ith the same value 0 47 ohm 1 2 watt KV27V42 Unit had led in front flashing 4 Sony KV27V42 BA4 shut down imes after turn on This indicates the unit has no vertical deflection file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 26 of 36 26 1 2004 0 28 03 Sony TSS Logs When HV comes up the signal at the Collector of the horizontal output transistor is normal No shorts can be found in the power supply PM501 1 810 061 21 amp IC601 1 810 477 11 PM501 was to culprit in this case KV24FV10 Unit will shut down immediately When monitoring the VP at IC001 18 only 1 volt peak to peak was Sony KV24FV10 AA 2 shutdown after turn on But the unit will stay on if the measured Floating IC001 18 allowed the voltage to return to 5 volt ervice mode is entered PP Replacing the IC001 corrected the trouble KV32S22 serial 8055057 Unit will run ine for 15 30 minutes with sporadic Sony KV32S22 AA 2 shutdown arcing then it will shut down with a bright Unit needs replacement CRT 8 733 741 05 green flash KV32S40 Unit will turn on and immediately Severing the 135 B line and placing a 40 watt bulb in series with hut down It does get high voltage briefly the supply were are still getting the same symptom but the Light Appears to be entering over current illuminates brightly We began to disconnect the flyback loads Sony KV32S40 AA 2 s
81. rs after where the horizontal drive pulses are supposed to be If allowed to operate for more than a minute the horizontal driver transistor Q502 ill short C to E The product has a bad jungle IC301 B OK on Horizontal output but not OK on Horizontal Driver No B on driver Tech found small connection loose on primary connection of driver transformer Resoldered and restored normal operation When tracing the video signal from the front input connector we find good video on the connector but less than an inch away from the connector is a coupling capacitor C2233 Apparently the trace was torn after the video input jack entered the board Placing a hard jumper wire from the Jack to the C2233 corrected the fault The design of the 8mm format is significantly different from that of the VHS The 8MM format does not have any stationary heads and completely relies on the signals from the rotary video heads on drum 4 ATF Auto Tracking Fix carriers are recorded on to the tape Apparently the shielding in the 8 mm VCR this close proximity to the TV and the lack of shielding in the Sony TV caused the corruption of the 4 ATF signals Placing the VCR on the bottom shelf of the TV cabinet corrected the symptom file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 17 of 36 26 1 2004 0 28 03 Sony TSS Logs his television had sever noise resembling black amp white random lines of varying Checking the video at th
82. s Sony KV36XBR450 Sony KV32SR10 Sony KV32S20 Sony KV32V25 KV32XBR100 AA2W ANU 2 raster Dark raster glowing raster glowing raster glowing TROUBLESHOOTING TIP ON THE A BOARD Connect a light bulb in place of the degauzing coil and observe if it lights up for a period at turn on Check the base of Q6001 SURFACE MOUNT at turn on for 6v at turn on each time at 5min intervals between If the base does not go high suspect the microprosessor IC 701 According to Sony there are some problems with these IC s causing intermittent degauzing problems TRY THE LIGHT BULB IN PLACE OF THE DEGAUZING COIL TO CHECK DEGAUZE OPERATION Another possibility causing no degauzing AC line drops too low during degauze sequence Check the AC input to the set before during and after turn on for any significant drop in voltage If so suspect the customer s AC outlet overloaded KV32SR10 Unit has dark raster with flaring Measuring the G2 voltage at 1000 vdc source for the G2 only finds across the picture 62 volts R519 is open Replacing R519 a 2 2K resistor amp D501 hen turned on the raster has a dim glow When raising the G2 voltage it was discovered the CRT hada ith the top brighter than the bottom The Juniform brightness where the top of the screen was brighter than imer LED in front flashes Unit has high Ithe rest in the CRT It was also discovered the 15 was missing oltage and sound Tech needs to look at D530 and R537 a 0 47 o
83. sed caption option feature Instruct customer to operation od CC modes Son KV35V75 AA 2 CLOSED _ KV35V75 9006691 Unit does not have Original CPU CXP85640 005S The new device is CXP85640 006S y CAPTION losed caption on premium channels CPU was replaced and did not correct the symptom Resistor R354 was not soldered in correctly The resistor is in the Sony SERIE a DAR Color AFC circuitry It had a 15 ms ripple on it causing a phase has horizontal banding of purple and red at hift in the ch in the first 4 to 5 inch he pi Probl Sony KV32V15 color banding top of screen If the color was reduced the SL le Cafona In ie Mor T to EEE SEE call as caused by a glue used to secure the surface mounted resistor The glue prevented a good connection of the resistor to the pad Cleaning the glue away and resoldering corrected the symptom KV27V66 serial Unit looses 3 minutes a in KV27V66 weeks on the internal clock in the elevision CLOSED KV27V20 8015729 No closed caption on CAPTION premium channels KV27V20 KV27V20 KV27V20 banding would disappear Color bar did not have a normal appearance file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 5 of 36 26 1 2004 0 28 02 Sony TSS Logs Sony KV32XBR45 KV32XBR45 KV32XBR45 AA 1 CONVERGENCE CONVERGENCE CONVERGENCE Unit has an open R789 a 18 meg 1 2 watt resistor for the Horizontal static convergence The tech will have
84. splay a normal picture then get brighter and brighter then go to ano raster symptom with sound Tech needs to enter the tech menu mode and change the values of CDMD to 1 and VSS to 3 KV32XBR37 Raster None KV32XBR85 Raster None KV36FV15 RASTER none Tech may have a IK failure When bringing up the G2 the raster will appear with full vertical sweep and a purple screen Not much green Tech needs to look at the IK buffer collectors on Q771 KV32XBR37 serial 80139945 Unit has no Q772 amp Q773 Normally with beam current there shall be about 1 raster Has sound CRT filaments and high volt on each collector With the CRT Socket removed all collectors oltage Led in front is flashing must drop to 0 volts Q771 did not It was 1 2 volts regardless if the tube was connected or not Tech needs to short Q771 E amp B and see if the collector will drop It did not TV will need a replacement Q771 Replacement cured the symptom Unit appears to have a normal IK feed back to the jungle IC Screen voltages are 670 vdc and the cathode is running at 180 vdc Unit looks like a defective Jungle IC Replacing the Jungle IC corected the symptom Tech needs to look into the Data amp Clock lines of the chassis These lines must be 5 volts peak to peak and have a typical word length of 1000 milli seconds Tech discovered the SDA pulses were 3 3 volts peak to peak whereas the CLK pulses were at 5 volts Tech had to isolate each load on the SDA l
85. sting in the we found the Damper diodes D501 amp D504 were shorted along with the pin modulator transistor Q504 Parts necessary to fix this unit was D501 amp D504 pn 8 719 545 80 Q504 pn 8 729 053 87 Q502 8 729 046 07 SON KV32FS13 BA5 DEAD Main Power supply will not produce secondary voltages hen powered up the set will turn on but the will Chirp Checking around the flyback transformer and horizontal output with an oscilloscope we found the horizontal pulse was corrupt This was measured on Q502 C Further checking we found the Damper diodes D501 amp D504 were shorted This condition also directed us toward the pin modulator transistor Q504 which we found shorted Parts necessary to fix this unit was D501 amp D504 pn 8 719 545 80 and Q504 pn 8 729 053 87 SON KV32FS13 BA5 DEAD Main Power supply will not produce secondary voltages hen powered up the set will turn on but the will Chirp Checking around the flyback transformer and horizontal output with an oscilloscope we found the horizontal pulse was corrupt This was measured on Q502 C Further checking we found the Damper diodes D501 amp D504 were shorted This condition also directed us toward the pin modulator transistor Q504 which we found shorted Parts necessary to fix this unit was D501 amp D504 pn 8 719 545 80 and Q504 pn 8 729 053 87 file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs
86. t 1 3 of the bar graph A new microprocessor is available for this unit It is part number T 998 600 32 It replaces the original IC001 which was M37273MF 251 file C Documents 20and 20Seitings Admin Plocha Sony 20TSS 20Logs htm 2 of 36 26 1 2004 0 28 02 Sony TSS Logs Sony KV27V65 Sound does not ramp up orrectly Seems to get very loud as soon had tech get into the ID codes and reset ID2 from 239 to 175 and Sony KV27V65 AA 2 audio as he volume Gale hiaher in aven shon ID 4 from 130 to 194 Then initialize the EPROM Set returned to ma 9 9 y normal operation had the tech try to measure if there was any DC voltages that resided on the Variable audio output connectors There was 4 5 volts on the Right channel and 0 volts on the left channel When the Mute transistors on the variable line triggered they pulled both KV32S65 Serial 8014575 Sound and lines to ground When the external amp was connected to this picture is fine bur ahenthe fixed s vanable circuit the input capacitor for the right channel charged with this 4 5 Sony KV32S65 AA 2 audio audio out is connected to an external audio ali WE SU MAO UAG Or DNS Ua Sven MOUN WATO A ce Sony KV32XBR10 Sony KV27V40 KV27V65 potential But when the Sony muted the input capacitor inside the Big External amp discharged and caused a tremendous pop C172 is a 47mfd used to decoupling the audio from IC 101 the Variable audio control IC This capacitor had 4 5 vdc o
87. t the symptom KV32S26 Unit will go to as bright screen WERE BE RACE INES ith retrace lines then shut down KV32S26 retrace lines KV32V25 Retrace lines KV32V25 retrace lines it was open Replaced the resistor and the set operated normally The 200 vdc line at the CRT is only running at 144 vdc on all Sony KV32XBR100 DA1 RETRACE LINES on Unit has a bright screen with cathodes Unit has an open diode on flyback transformer for the 200 vdc source file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 25 of 36 26 1 2004 0 28 03 Sony TSS Logs When looking at a blue raster at 60 IRE the blue does not have uniform brightness across the screen The light output is not the same level at the area of the screen where we see the yellow with a 60 IRE white screen We are not able to adjust the Blue to make it equal in brightness in all areas of the screen This is a defective CRT Customer does not want the set requesting a replacement Under 30 day purchase After checking out the box and moving the box it was discovered the movement of the box effected the screen brightness The box was mounted directly beneath the television If the box was moved to the far left the symptom disappeared If centered below the TV the symptom was evident Solution was to move the CATV box away from the television and remove any electromagnetic interference caused by the television Unit has an intermittent s
88. the ymptom There is video at the base of Q401 but not at the emitter Q401 measures 9 volts on all elements Base must be 4 5 volts Transistor is in cut off Bases and emitter are the same 9 volts Unit has open R617 a 680 ohm resistor KV35XBR48 WRONG COLOR KV35XBR48 serial 01901543 Customer using this television on a DVD player and has it connected through the YUV inputs he gray scale is favoring the green color emperature even if no color is present on he screen Playing back the same signal in he Composite input or the S video input he color temperature is normal with normal black and white tracking It is thought that a eparate black and white tracking or RGB drive adjustment in the YUV mode will olve this trouble According to Sony there isn t any drive adjustments in the YUV mode This symptom shows up on another Sony television of the same model Sony claims this is a normal function and there are no plans to address this phenomena There is nothing wrong with the Television It is operating as designed file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 34 of 36 26 1 2004 0 28 03 Sony TSS Logs Unit is shutting down as soon as KV32XBR95 he set is plugged in FN Shutdown Sony Unit has Garbled or Noisy or Distorted or Static but what is ISN T is NORMAL Problem raced to the SBX sound package hat might cause similar symptoms and IT has been decreed
89. the 200vdc source at L9005 on the C board This is the 200 vdc pealking coil located on the CRT socket This voltage was 0 volts Measuring the resistance to ground at the 200 vdc input to each CRT cathode driver IC Sony IKV36XBR450 AA2W shutdown IC9001 IC9002 IC9003 6 found 6 ohms to ground sound and the screen brightly lit i ih reirace ines then hutdaown Closer inspection of the cathode driver IC IC9003 amp gee 1C9002 had holes in them just above Pin 6 PN 8 759 Now set Shuts down as it did on ha sirefcal 360 83 Also new module damage Open R5096 on the D board a 0 47ohm open Replace all 3 cathode driver IC s corrected the problem en nn Tech needs to tap on neck of CRT and see if the symptom is Sony KV32XBR48 AA 2 shuts down ean Unt canbe mined Ps ain nohi aggravated by this action After tech got to the house an tapped on away g g CRT it was founf that the Tube was causing the problem KV27V22 serial 8004933 Unit has a green Sony KV27V22 AA 2 SHUTSDOWN Screen with slight retrace lines Tapping on ICRT Due to this trouble suggest that we replace the CRT KV27V42 SHUTSDOWN he neck of the tube aggravates the green drive then the set shuts off KV27V42 Unit runs but will shut down intermittently with the timer LED flashing in la sequence of two flashes then a 4 second pause then two flashes Seem be ensitive to the effects of beam current ust prior to shut down the set will exhibit horizo
90. to make a resistor out of 3 6 2 meg resistors Suggest tech look for R789 and see if it is open It is on the on C board It The value is around 10 meg There are two different chassis and CRTs used for this model If they have the older chassis type that requires H stat convergence CRT board has H stat control they need to order the older CRT as per the manual If newer type No H stat then the new CRT as per Service Manual Supplement 1 is needed CRT 8 733 743 05 The H Stat is done using the Yoke ring magnets have attached the two Service Manual supplements and the SB325R1 Suggest tech look for R789 and see if it is open It is on the on C board It The value is around 10 meg There are two different chassis and CRTs used for this model If they have the older KV32XBR45 Unit has sever Horizontal chassis type that requires H stat convergence CRT board has H tatic convergence error Tech replaced the stat control have attached the two Service Manual supplements CRT without authorization This did not and the SB325R1 However none of them have show this resistor olve the symptom We were able to install a resistor in this unit that was a two 10 megs in series Trimming the value by adding another 10 meg in parallel with one of the other 10 megs we were able to converge the set Original part was not available KV32XBR45 convergence is way off in the horizontal direction KV32XBR45 Unit has convergence of all ertical lines are displ
91. ve green output transistor Sony KV27TS27 LN 1 chassis predominately red picture Sony Sony SONY KV32TW67 KV32FV1 KV32FV1 KV32FS13 AA 2H AA 2H BA5 remote remote remote Resolution KV32TW67 serial 70040800 Remote does not function RMY102 remote is being used The menu displays when in the menu button on the remote is pressed e are able to highlight each area of the menus selection which are the Video imer Setup and closed caption choices But when selection of any of these are tried nothing happens In the service mode Service menu the service menus comes up ith AFC as the first selection However the binary number 1000 displayed under the ord Service keeps changing from 1000 o 1100 randomly The remote has been changed without effecting the symptom This appears to be a system control failure All ID codes are within normal values Suggest the tech replace the following components IC101 and IC102 are 8 752 856 00 and 8 759 280 74 The components correct the symptom Unit has 0 volts on the output of the IR receiver IC2001 1 This should be 5 volts as long as it is not receiving data Customer has an RCA DVD player connected using the S video input and the S Link too Sony s S Link is not compatible with RCA s G Link input used to control operational functions Disconnect the S link G link connections and restored operations Unit has 0 volts on the output of the IR receive
92. was assumed the IK picture When G2 is lowered the picture Sony KV32826 An2 Master Bi nk on an off Tech replaced the flyback Peuses were OK from the jungle chip The main concern is it the ntermittent and jungle chip with no changes in pulses are leaving the main board and if the pulses are getting back to pin 27 This flashing condition indicates the IK feedback Sunon pulses are insufficient some where in this path Further static check indicated a shorted zener diode D1792 in the IK buffer path on the CRT module REMOVE THE FOLLOWING PARTS ON THE C BOARD R754 RASTER Unit has intermittent raster Bringing up the RESISTOR 10K OHM C719 CAPACITOR ELECTROLYTIC Sony KV27HSR10 ANU 1 i G2 voltage stops the intermittent action of 22NF 25V R755 RESISTOR 5MM JUMPER 330 OHM Intermittent he CRT CONFIRM AND READJUST THE G2 FOR CORRECT WHITE BALANCE file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 21 of 36 26 1 2004 0 28 03 Sony TSS Logs Raster Sony KV32XBR51 ANU 1 Intermittent Raster KV27FV15 Intermittent Further visual checks in the television discover the filaments KV32XBR51 Unit has intermittent symptom become dim intermittently More visual inspection reveals many of no raster Has sound and high voltage small ring fractures around the heater pins of the flyback transformer KV27FV15 Unit has Unit has a symptom hen it is on Channel 4 KNBC Los Angeles the set will di
93. wave form of never normal looking Only 48 volts pp then starts to distort and drop to a flat line Inputs to IC501 Unit has Insufficient vertical sweep After also drop When checking at the output of the Jungle IC 355 14 Sony KV36FS12 AA2 Vertical he set is on a while the vertical will fold the drive signal becomes less and less until it is gone Further over in the center and eventually collapse Ichecking found that D384 was leaky It is a 11 volt zener on the Vertical drive output from the Jungle IC Replace the diode and cured the symptom Customer claims the set develops a ymptom of a black vertical line in the Taking a conservative approach to this repair the tech needs to enter of the screen It is spreads rapidly enter the tech menu and reset the VSS parameter from 0 to 1 and Sony KV20FV10 VERTICAL LINE lacross the screen until there is no raster the CDMD from 0 to 3 This will cause intermittent loss of raster Afterwards there is still sound but no On There are no error codes listed in the Tech menu Tech will need to creen Display or Raster Customer claims check back in two days an see if the symptom shows up again he LED in front does not flash The description sounds like jail bars caused by a ringing in the B to the Flyback transformer It is suggested to install a capacitor with non SE r SEE SATE a value of 33 mfd at 250 vdc in place on top of chassis in positive S KV32845 AA 2 ical li m u ea Toe DEE 2 side to FB503 and negative
94. with the buttons No contamination of the buttons or board was found Further Unit starts to channel UP as soon as the checking finds the Key Input on CN2001 5 was only 1 1 volts V is turned on Cannot stop the unit from instead of 5 volts when no keys are pushed Unplugging the hanneling UP unless one of the other CN2001 still did not bring up Pin 5 No shorts could be found on buttons on the TV are pushed It will this line but a zener diode D006 a 9 1 volt device was discovered It execute TV Video is the clamp for the KEY input of the IC001 Cutting diode restored normal operation Replacement of this diode was done to protect the input of 1001 Located on the MA board asked tech to check the negative supply voltage to IC103 Memory Sony KV2084 Will not memorize any IC on 10 it should be 29 VDC before replacing the CPU and hannels Tech ordered the CPU and Memory IC CPU was not needed Verified the presence of the supply voltages at the memory chip The memory chip was defective file C Documents 20and 20Settings Admin Plocha Sony 20TSS 20Logs htm 30 of 36 26 1 2004 0 28 03 Sony TSS Logs had tech check the B on the tuner that are stamped on the board The 9 30 amp 5 volts are normal The SCL line is only 2 volts and the SDA line is 4 6 The SCL line is the trouble Tech did not have an oscilloscope but since the SCL line for this tuner is the same for the PIP tuner we concluded the CPU was not at fault KV32FV
95. yer However if the television select CRIW and change it from 15 to 3 Also check the LBLK operates in the tuner mode for over the air must be 7 RBLK must be 7 and HBSWO must be 0 At this elecasts closed caption works fine point save the new data and exit the tech menu The tech needs to set the ID codes to the following IDO 25 ID1 19 ID2 47 ID3 0 ID4 27 ID5 3 ID6 0 ID7 0 If these are OK then the tech will need to replace the IC001 with an upgraded version per bulletin 329R1 Original generic is CXP85640 004S the new generic is CXP856P40S 1 part number T 935 001 61 CLOSED KV27V20 serial 8015729 Unit does not See Bulletin 329R Original CPU CXP85640 005S The new device CAPTION have closed caption on premium channels jis CXP85640 006S The tech needs to set the ID codes to the following IDO 25 CLOSED ID1 19 ID2 47 ID3 0 ID4 27 ID5 3 ID6 0 ID7 0 If these are KV27V20 CAPTION No closed caption on premium channels JOK then the tech will need to replace the IC001 with an upgraded version per bulletin 329R1 Original generic is CXP85640 004S the new generic is CXP856P40S 1 part number T 935 001 61 Sony KV27V20 unit has intermittent Unable to see any problem with circuitry and ID codes are correct CLOSED ymptom of closed caption coming up on All appears normal Setting all CC1 CC4 and teletext 1 and 2 to CAPTION creen Cust claims they cannot turn off the the Minus option this effectively shuts off the closes caption lo

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