SERVICE MANUAL - Electronica.ro
Contents
1. D101 D201 D202 D203 D204 D205 IC1 101 JC1 L1 L2 L4 LED101 Q1 Q201 Q202 R2 R4 R5 R101 R102 R103 R104 R105 R204 R205 10 Part No 1 141 522 11 1 141 522 11 8 19 911 19 8 19 911 19 8 719 911 19 8 719 911 19 8 719 052 88 8 19 911 19 8 719 052 88 8 719 052 88 8 52 037 02 8 759 821 46 1 216 285 91 1 754 099 11 1 406 028 00 1 428 229 11 8 749 016 86 8 129 119 76 8 29 011 92 8 729 119 76 1 210 017 91 1 216 057 00 1 216 057 00 1 216 105 91 12216 097 91 1 216 097 81 1 216 089 91 1 216 081 00 1 216 009 91 1 216 041 00 SEMICONDUCTORS In each case u u for example uA HA UPA UPA uPB UPB uPC UPC uPD uPD The components identified by mark or dotted line with mark A are critical for safety Replace only with part number specified Les composants identifi s par une marque A sont critiques pour la s curit Ne les remplacer que par une pi ce portant le num ro sp cifi Description Remarks lt TRIMMER gt CAP VAR lt VARIABLE CAPACITOR gt CAP VAR TUNING lt DIODE gt DIODE DIODE DIODE DIODE DIODE 188119 188119 188119 155119 1N4002 DIODE DIODE DIODE 188119 1N4002 1N4002 IC gt IC CXA1019S IC LM8560N lt JUMPER gt SHORT 0 lt COIL gt ANTENNA FERRITE ROD MW COIL OSC MW COIL AIR CORE lt LED gt LED SL 3998 78T lt TRANSISTO2. COVERAGE ADJUSTMENT CT4 FM FREQUENCY L2 AM FREQUENCY COVERAGE COVERAGE ADJUSTMENT ADJUSTMENT Clock Frequency Check Confirm that the reading on the frequency counter is 900 io Hz If frequency is higher change capacitor value of C101 If frequency is lower change resistor value of R101 frequency counter 10 pF 0 1F C101 pin ji ICF C135 5 1 PRINTED WIRING BOARDS pj 4 2 A RADIO BOARD SECTION 5 DIAGRAMS 6 f 8 9 FM LEADWIRE ANTENNA 7 DRY BATTERY S 006P 9V IEC DESIGNATION 6F22 KEEP THE CORRECT TIME DURING owes STOPPAGE SECONDRY BOARD WHT ORG WHT W701 659 579 10 11 l 659 581 e Semiconductor Location LED101 Q1 Q201 Q202 Note on Printed Wiring Boards e o parts extracted from the component side parts extracted from the conductor side indicates side identified with part number e A internal component e EE Pattern from the side which enables seeing PRIMARY BOARD AC IN 659 580 5 2 SCHEMATIC DIAGRAM 1 2 3 4 D 6 1 8 9 10 11 12 13 1 4 RADIO BOARD A LI CTI CT3 L4 CT4 L2 CT2 AM FM FM FREQUENCY AM FREQUENCY TRACKING TRACKING COVERAGE COVERAGE L1 AM L3 cyi FERRITE RO PATTERN COIL TUNING LEDI01 ANTENNA FM LEABWIRE C20 B Mc ALARM BUZZER roro 74010 OFF ON z
3. Ne les remplacer que par une mp AM Replace only with part piece portant le num ro number specified sp cifi OGAH HO 12 03 04 7 4L 23 o ns LL c 5535 88 8 3 2 2 2 22 Fe stg ICF C135 15 16 m BOARD NOTE e XX and X mean standardized parts so they may have some difference from the original one Items marked are not stocked since they are seldom required for routine service Some delay should be anticipated when ordering these items not supplied SECONDAR not supplied ee T101 not supplied PRIMARY board 2 Ref No Part No Description Remarks Ref No Part No 1 3 040 753 01 HOLDER LED 11 3 369 135 21 2 3 040 750 01 PANEL FRONT 12 3 938 058 41 3 3 012 759 21 BUTTON FUNC 13 3 368 852 01 5 3 938 064 21 KNOB FUNCTION A 14 1 783 817 11 6 3 938 059 41 CABINET UPPER SP1 1 504 748 21 7 A 3663 419 A RADIO BOARD COMPLETE A T101 1 435 201 11 8 3 919 268 01 KNOB VOL 1 685 647 79 9 3 930 828 01 KNOB TUNING 2 7 685 154 19 10 3 040 752 01 POINTER SECTION 6 EXPLODED VIEWS The mechanical parts with no reference num ber in the exploded views are not supplied e Accessories and packing materials are given in the last of the electrical parts list 3 44 The components identified by mark A or dotted line with mark A are critical for safety Replace only with part number specified Les composants identifies par une marque A sont critiques pour
4. must not exceed 0 5 mA 500 microampers Leakage current can be measured by any one of three methods 1 A commercial leakage tester such as the Simpson 229 or RCA WT 540A Follow the manufacturers instructions to use these instruments 2 A battery operated AC milliammeter The Data Precision 245 digital multimeter is suitable for this job 3 Measuring the voltage drop across a resistor by means of a VOM or battery operated AC voltmeter The limit indication is 0 75 V so analog meters must have an accurate low voltage scale The Simpson 250 and Sanwa SH 63Trd are examples of a passive VOM that is suitable Nearly all battery operated digital multimeters that have a 2 V AC range are suitable See Fig A To Exposed Metal Parts on Set AC voltmeter 0 75 V Earth Ground Fig A Using an AC voltmeter to check AC leakage Notes on chip component replacement e Never reuse a disconnected chip component Notice that the minus side of a tantalum capacitor may be dam aged by heat SAFETY RELATED COMPONENT WARNING COMPONENTS IDENTIFIED BY MARK OR DOTTED LINE WITH MARK ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY HOW TO CHANGE THE FM CERAMIC FILTERS This model is used two ceramic filters of CF1 and CF3 You must use same type of
5. la s curit Ne les remplacer que par une pi ce portant le num ro sp cifi not supplied not supplied Remarks Description LID BATTERY CASE CABINET LOWER FOOT CORD POWER SPEAKER 6 6CM TRANSFORMER POWER SCREW P 3X10 TYPE2 NON SLIT SCREW P 3X35 TYPE2 NON SLIT NOTE Due to standardization replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set Ref No CN701 XX X mean standardized parts so they may have some difference from the original one Items marked are not stocked since they are seldom required for routine service Some delay should be anticipated when ordering these items C16 C31 C101 C102 C103 C104 C107 C201 C202 C203 C204 C205 C206 C207 CF1 CF2 CF3 Part No A 3663 419 A 1 535 804 11 3 922 610 01 1 163 088 00 1 163 233 11 1 163 102 00 1 163 251 11 1 163 031 11 1 126 964 11 1 163 031 11 1 126 963 11 1 126 963 11 1 126 964 11 1 163 033 91 1 163 809 11 1 128 551 1711 1 163 038 91 1 126 924 11 1 164 505 11 1 126 924 11 1 163 031 11 1 163 220 11 1 162 282 31 1 162 600 11 1 163 019 00 1 163 021 91 1 163 031 11 1 163 038 91 1 126 963 11 1 163 031 11 1 163 031 11 1 126 934 11 1 163 031 11 1 163 031 11 1 126 925 11 1 104 665 11 1 577 324 11 1 577 072 11 1 577 324 11 1 568 272 11 Description SECTION 7 ELECTRICAL PARTS
6. K K K KK K K K K K 3 867 923 11 3 867 923 21 ACCESSORIES amp PACKING MATERIALS ke ke K K K K K K K K K K KK K K K K K K K K K K K K K K K K MANUAL INSTRUCTION ENGLISH FRENCH CND MANUAL INSTRUCTION ENGLISH US The components identified by Les composants identifies par mark or dotted line with mark une marque sont critiques A are critical for safety pour la s curit Replace only with part number Ne les remplacer que par une specified pi ce portant le num ro sp cifi Ja ICF C135 Sony Corporation 99J1620 1 9 927 609 11 Personal Audio Division Company Printed in Japan 1999 10 14 Published by General Engineering Dept
7. LIST CAPACITORS uF uF RESISTORS All resistors are in ohms METAL metal film resistor METAL OXIDE Metal Oxide film resistor F nonflammable COILS uH uH When indicating parts by reference number please include the board name RADIO BOARD COMPLETE KOK K K K K KK K K K K KK K K K K K K K K SNAP BATTERY HOLDER ANTENNA lt CAPACITOR gt CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP ELECT ELECT ELECT CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP ELECT CERAMIC CHIP ELECT CERAMIC CHIP CERAMIC CHIP CERAMIC CERAMIC CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP CERAMIC CHIP ELECT ELECT lt FILTER gt FILTER CERAMIC FILTER CERAMIC FILTER CERAMIC lt CONNECTOR gt 5PF 18PF 24PF 100PF 0 01uF 10uF 0 01uF 4 7uF 4 7uF 10uF 0 022uF 0 047uF 22uF 0 1uF 330uF 2 2UF 330uF 0 01uF 3PF 100PF 0 0047u 0 0068u 0 01uF 0 01uF 0 1uF 4 7 UF 0 01uF 0 01uF 220uF 0 01uF 0 01uF 470uF 100uF SOCKET CONNECTOR 6P 5 5 5 20 20 20 20 10 20 20 20 0 25PF 10 F 20 F 10 10 20 20 20 20 Remarks 90V 50V 50V 50V 50V 50V 50V 50V 50V 50V 50V 20V 29V 29V 10V 16V 10V 50V 50V 50V 16V 50V 50V 50V 20V 50V 50V 50V 16V 50V 50V 10V 10V Ref No CT1 4 CV1 D1
8. R gt TRANSISTOR TRANSISTOR TRANSISTOR 25A1175 HFE 2502001 TP K1K2 25A1175 HFE lt RESISTOR gt RES CHIP 47 5 METAL CHIP 2 2K 5 METAL CHIP 2 2K 5 RES CHIP 220K 5 RES CHIP 100K 5 1 10W 1 10W 1 10W 1 10W 1 10W RES CHIP 100K 5 RES CHIP 47K 5 METAL CHIP 22K 5 RES CHIP 22 5 METAL CHIP 470 5 1 10W 1 10W 1 10W 1 10W 1 10W Ref No RV1 S1 S2 S3 S4 S5 S6 S7 S8 T1 W701 W702 Part No 1 228 790 00 1 692 181 21 1 762 232 11 1 554 303 21 1 554 303 21 1 554 303 21 1 554 303 21 1 554 303 21 1 554 303 21 1 404 790 11 1 776 983 11 1 769 137 11 Description Remarks lt VARIABLE RESISTOR gt RES VAR CARBON 50K VOLUME lt SWITCH gt SWITCH SLIDE FM AM SWITCH SLIDE OFF RADIO ON RADIO BUZZER SWITCH TACTILE TIME SET M SWITCH TACTILE TIME SET H SWITCH TACTILE ALARM SWITCH TACTILE CLOCK SWITCH TACTILE SLEEP SWITCH TACTILE SNOOZE SLEEP OFF lt TRANSFORMER gt TRANSFORMER IF lt FLAT CABLE gt CORD CONNECTION CORD CONNECTION 16 CORE ke ke K He ke 2 EE CE E KE K KE KE CE CE CE K KE K K HR ECKE K K K K K K K K K K K K K K K K K K K KK K K KK K K KK K K K K K A14 SP1 A T101 1 83 817 11 1 504 748 21 1 435 201 11 MISCELLANEOUS KOK K K K K K K K K K K K K CORD POWER SPEAKER 6 6CM TRANSFORMER POWER KKE K K ke KE K E K K ee ee KE CE KE E CE EE K KE KE KE E E K K K K K K K K K K K K K K K K K K KK K KK
9. SERVICE MANUAL Ver 1 0 1999 10 SPECIFICATIONS Time display 12 hour Frequency range FM 87 5 108 MHz AM 530 1710 kHz Speaker Approx 6 6 cm 2 inches dia 8 ohm Power output 130 mW at 10 harmonic distortion Power requirements 120 V AC 60 Hz For the power back up function 9 V DC one 6F22 battery Battery life Approx 200 minutes using Sony S 006P U battery Dimensions Approx 118 x 120 x 140 mm w h d 45 x 4 x5 inches incl projecting parts and controls Mass Approx 680 g 1 Ib 8 oz not incl battery Design and specifications are subject to change without notice E ES ud MICROFILM ICF C135 US Model Canadian Model qu 5 Nm uu gt Sn ds er E LI PPT ten ass SONY FEATURES Full power back up function to keep the clock the alarm radio and buzzer and the radio operating during a power interruption using a 6F22 battery not supplied FM AM CLOCK RADIO SON Y SECTION 1 SERVICING NOTES SAFETY CHECK OUT After correcting the original service problem perform the following safety check before releasing the set to the customer Check the antenna terminals metal trim metallized knobs screws and all other exposed metal parts for AC leakage Check leakage as described below LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis
10. color marked ceramic filters in order to meet same specifications Therefore the ceramic filter must change two pieces together since it s supply two pieces in one package as a spare parts Center mark 2 Mark 1 Mark 2 frequency red 10 70MHz iem orange 10 73MHz Tiosam roseus 1075 Mi 10 79 MHz CORD DRESSING POWER ANTENNA BATTERY 1 Connect the power cord antenna cord and battery cord as shown in the figure 2 Mount the chassis with screws PTP3 x 10 Note Tighten completely the screws PTP3 x 10 battery cord antenna cord L ET DL S o e ID power cord chassis screw PTP3 x 10 ATTENTION AU COMPOSANT AYANT RAPPORT LA S CURIT LES COMPOSANTS IDENTIFI S PAR UNE MARQUE SUR LES DIAGRAMMES SCH MATIQUES ET LA LISTE DES PI CES SONT CRITIQUES POUR LA S CURIT DE FONCTIONNEMENT NE REMPLACER CES COM POSANTS QUE PAR DES PI CES SONY DONT LES NUM ROS SONT DONN S DANS CE MANUEL OU DANS LES SUPPL MENTS PUBLI S PAR SONY CLOCK TIME SET SECTION 2 GENERAL Function selector ALARM SLEEP O eO SNOOZE SLEEP OFF FM wire antenna am Cru mmm Setting the Clock 1 Plug in the unit The AM indicator and 12 00 will flash in the display 2 To set the hour while holding down the CLOCK button press the TIME SET H button When the correct hour appears in the display release the CLOCK button 3 To set the minu
11. o TN ePNFOUOCF D O D Li OD COLNINC ZZZZOUOZ 0 NNN m FRONT ENB D IF AMP DET I r cc si h ZZ BAND L 3 S E E Q srt Sl eT Ths OF ALARM 155119 o d N LL ea 5 E C CLOCK 7 B l 0201 25C2001 NOISE FILTER 6 2 0702 254933 SWITCH 14 T101 SP POWER l TRANSFORMER G l O O DRY BATTERY S 006P 9y l IEC DESIGNATION 6F22 KEEP THE CORRECT rive DURING POVER H Q STOPPAGE e IC Block Diagram IC1 CXA1019S e lt Note on Schematic Diagram LLI D BE ooB8 y amp Bg Ct X 2 ug All capacitors are in uF unless otherwise noted pF upF B Line Z Zu 0854 u fF Z U S3 Z zea 50 WV or less are not indicated except for electrolytics e adjustment for repair 80 095 924 P and tantalums e Voltages are dc with respect to ground under no signal All resistors are in Q and 4W or less unless otherwise detuned conditions specified no mark FM E AM IF DET AGC Ke e iinternal component AM paneldesignation x Impossible to measure e Voltages are taken with a VOM Input impedance 10 MQ Note Note p Voltage variations may be noted due to normal produc The components identi Les composants identifi s par tion tolerances fied by mark or dotted une marque sont critiques Signal path line with mark are criti pour la s curit D FM cal for safety
12. order given Q Turn CV1 and RV1 shaft in the arrow direction fully Q RADIO board Set the pointer to the guide line RADIO board Conductor Side pointer guide line marking Q pe TUNE Q pointer Q speaker Q As shown in figure marking of TUNE knob and marking Q of VOL knob setting SECTION 4 ELECTRICAL ADJUSTMENTS FM Setting BAND switch FM FM RF signal generator level meter 22 5 kHz frequency speaker terminal deviation by 400 Hz signal FM lead wire antenna terminal AM Setting BAND switch AM Put the lead wire antenna close to AM RF SSG ihe set level meter CA C set 30 amplitude modulation by 400 Hz signal Output level as low as possible speaker terminal Repeat the procedures in each adjustment several times and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors FM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter AM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter 520 kHz 1 750 kHz AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter 600 kHz 1 400 kHz e Adjusting Location RADIO board Component Side L1 AM TRACKING CT3 FM TRACKING ADJUSTMENT ADJUSTMENT T1 AM IF ADJUSTMENT CT1 AM TRACKING ADJUSTMENT L4 FM FREQUENCY COVERAGE ADJUSTMENT CT2 AM FREQUENCY
13. te while holding down the CLOCK button press the TIME SET M button When the correct minute appears in the display release the CLOCK button The clock will begin to operate Each press on the TIME SET H or TIME SET M button advances the displayed number by one The minute digits advance to 00 after 59 The hour digits do not advance by pressing the TIME SET M button To adjust the time exactly to the second release the TIME SET M button simultaneously with the radio or telephone time signal VOLUME ee00 TUNING Playing the Radio 1 Set the Function selector to RADIO ON to turn on the radio and adjust VOLUME 2 Select FM or AM and tune in a station using the TUNING dial To turn off the radio set the Function selector to OFF To improve radio reception FM Extend the FM wire antenna fully to improve reception AM Reorient the unit for optimum reception A ferrite bar antenna is built into the unit This section is extracted from instruction manual Setting the Alarm To set the radio alarm first tune in a station and adjust the volume 1 To set the hour for alarm while holding down the ALARM button press the TIME SET H button When the desired hour appears in the display release the ALARM button 2 To set the minute for alarm while holding down the ALARM button press the TIME SET M button When the desired minute appears in the display release the ALARM button 3 Set
14. the Function selector to RADIO or BUZZER The alarm will come on at the preset time and automatically turn itself off after 119 minutes To shut off the alarm set the Function selector to OFF To sound the alarm at the preset time the next day set the Function selector to RADIO or BUZZER again To cancel either alarm set the Function selector to OFF To doze a few more minutes press SNOOZE SLEEP OFF The alarm will shut off but will come on again after about 9 minutes You can repeat this process as many times as you like To adjust the radio alarm volume turn VOLUME The buzzer volume is fixed To listen to the radio continuously set the Function selector to RADIO ON To check the preset time press ALARM button Setting the Sleep Timer Enjoy falling asleep to the radio using the built in sleep timer that shuts off the radio automatically at a preset time 1 While listening to the radio set the Function selector to OFF 2 Press SLEEP The radio turns on It will go off after 59 minutes To turn off the radio before the preset time press SNOOZE SLEEP OFF Every time you press SLEEP the sleep timer is reset to 59 minutes When you set the Function selector to RADIO or BUZZER if the preset alarm time comes while the sleep timer is operating the radio or buzzer sounds depending on which you set SECTION 3 DIAL POINTER SETTING Note Follow the assembly procedure in the numerical
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