SERVICE MANUAL - Electronica.ro
Contents
1. Ji A au E OFF 015AZ3 9 AV 0 01 asc itevG 0 5 p2 LITHIUM BATTERY MIC AMP SML 310LTT84 CR 2025 l 3 BATTERY l ZV I aS 015424 7 ye CHECK LAMP l 16 H 2 1 672 000 J 11 16 z MINI e Semiconductor MIG OUT PIG Note on Schematic Diagram All capacitors are in uF unless otherwise noted pF uF 50 WV or less are not indicated except for electrolytics and tantalums All resistors are in Q and sW or less unless otherwise e Voltages and waveforms are dc with respect to ground under no signal detuned conditions e Voltages are taken with a VOM Input impedance 10 MQ Voltage variations may be noted due to normal produc Location Location F 2 F 3 D 2 Note on Printed Wiring Board e o parts extracted from the component side O Through hole Pattern of the rear side specified tion tolerances e indicates tolerance e Signal path Caution e _ _ panel designation MIc Pattern face side Parts on the pattern face side seen from B Line Conductor B the pattern face are indicated e Power voltage is dc 3 V and fed with regulated dc power Parts face side Parts on the parts face side seen from supply from battery terminal Component A the parts face are indicated A NOTE XX X mean standardized parts so they may have some differences from the original one Items mar2. each case u u for example specified in the diagrams or the components e RESISTORS uA WA UPA UPA used on the set All resistors are in ohms UPB UPB UPC UPC e XX X mean standardized parts so they METAL metal film resistor uPD UPD may have some difference from the original METAL OXIDE Metal Oxide film resistor When indicating parts by reference number ong F nonflammable please include the board name e Items marked are not stocked since they e COILS are seldom required for routine service uH uH Some delay should be anticipated when ordering these items Ref No Part No Description Remarks Ref No Part No Description Remarks A 4542 575 A AMP BOARD COMPLETE MISCELLANEOUS 1 1 790 506 21 CORD MICROPHONE 2 CORE lt CAPACITOR gt ie 2 2 2g k e k k k 2s fe k k k k ais k k fe afc os fe k oft k ofc k k ofc k k fe k k fe k k kk ok kk k kk k kk k kkk kkk k C1 1 119 749 11 TANTAL CHIP 33uF 20 4V ACCESSORIES amp PACKING MATERIALS C2 1 104 908 11 TANTAL CHIP 47uF 20 4V PEE E 2 ok 2 a 2 E EEE E E ok of 2 ak ok 2k ok ok E ake Cia 1 162 974 11 GERAMICCHIP 0 01uF 50V 3 866 282 11 MANUAL INSTRUCTION ENGLISH C14 1 164 346 11 CERAMIC CHIP 1uF 16V A 4540 182 A CLIP ASSY HOLDER C22 1 162 974 11 CERAMIC CHIP 0 01uF 50V C24 1 164 346 11 CERAMIC CHIP 1uF 16V lt DIODE gt D1 8 719 072 95 DIODE 015AZ3 9 X TPL3 D2 8 719 064 07 LEDSML 310LTT86 BATTERY CHECK UNIT D3 8 719 056 29 DIODE 015
3. AZ4 7 TPL3 D6 8 719 056 29 DIODE 015AZ4 7 TPL3 D7 8 719 056 29 DIODE 015AZ4 7 TPL3 lt JACK gt Ji 1 764 624 51 JACK MIC IN lt TRANSISTOR gt Qi 8 729 230 63 TRANSISTOR 2SC4116 YG Q2 8 729 230 63 TRANSISTOR 2SC4116 YG lt RESISTOR gt R1 1 216 833 91 RES CHIP 10K 5 1 16W R3 1 216 813 11 METAL CHIP 220 5 1 16W R11 1 218 706 11 METAL CHIP 3 9K 0 50 1 16W R12 1 216 861 11 METAL CHIP 2 2M 5 1 16W R13 1 218 703 11 METAL CHIP 3K 0 50 1 16W R14 1 218 703 11 METAL CHIP 3K 0 50 1 16W R21 1 218 706 11 METAL CHIP 3 9K 0 50 1 16W R22 1 216 861 11 METAL CHIP 2 2M 5 1 16W R23 1 218 703 11 METAL CHIP 3K 0 50 1 16W R24 1 218 703 11 METAL CHIP 3K 0 50 1 16W lt SWITCH gt S1 1 692 397 21 SWITCH SLIDE POWER Eee E e k e e e e e e E ofc e i e e e 2s fe e e fe ofc e 2s e k 2s 2 e 2s 2g e k k e k 2s k k 2s k k k k k k k kk 9 926 940 11 Sony Corporation Personal Audio Company 99E1639 1 Printed in Japan 1999 5 Published by General Engineering Dept
4. SERVICE MANUAL Ver 1 0 1999 05 ECM 1 125 AEP Model SPECIFICATIONS Type Electret condenser microphone Dimensions Microphone parts 11 x 26 mm diameter length 7 16 x 1 16 in Battery box parts 40 x 16 5 x 46 mm w h d 15 s x 2 32 x 13 16 in Mass Microphone parts including cord Approx 15 g 0 53 oz Battery box parts including lithium battery and cord Approx 17 g 0 6 oz Cord Microphone parts 2 2 mm 7 32 in OFC litz cord 2 core shielded Length approx 1 m 39 s in Battery box parts 2 2 mm 7 32 in OFC litz cord 2 core shielded Length approx 0 3 m 117 s in Supplied accessories Battery box 1 Holder clip 1 ELECTRET CONDENSER MICROPHONE MICROFILM Frequently response 100 16 000 Hz Directivity Unidirectional x 2 Output impedance 3 KQ 30 Sensitivity Open circuit output voltage level 42 4dB 0 dB 1V Pa 1 000 Hz 1 Pa 10p bar 94 dB spc Battery life Approx 100 hours with Sony lithium battery CR2025 not supplied Maximum sound pressure input level Approx 110 dBsrL 1 wave distortion at 1 000 Hz 0 dBspt 2 x 10 Pa Operating temperature range 0 C 40 C 32 F 104 F Design and specifications are subject to change without notice SONY SECTION 1 GENERAL This section is extracted from instruction manual When you turn the power on the battery check indicator lights up momentarily This is normal The
5. ked are not stocked since they are seldom required for routine service Some delay should be anticipated when ordering these items 3 1 BATTERY BOX SECTION SECTION 3 EXPLODED VIEW The mechanical parts with no reference number in the exploded views are not supplied Accessories and packing materials is given in the last of this parts list 1 Ref No Part No Description Remarks Ref No Part No Description 1 1 790 506 21 CORD MICROPHONE 2 CORE 8 2 545 590 01 TERMINAL MINUS 2 2 545 592 01 BUSHING 9 2 545 599 01 SHEET BLIND 4 X 2542 165 1 CASE UPPER ASSY BATTERY 10 2 545 586 01 CASE LOWER BATTERY 5 2 545 588 01 KNOB SWITCH POWER 11 2 545 587 01 HOLDER BATTERY 6 A 4542 575 A AMP BOARD COMPLETE 12 2 545 668 01 LABEL MODEL NUMBER 7 2 545 589 01 TERMINAL PLUS 1 7 685 103 19 SCREW P 2x5 TYPE2 NON SLIT 3 2 MAIN SECTION Ref No Part No Description 51 52 53 Remarks A 4540 182 A CLIP ASSY HOLDER X 2542 079 1 CLIP ASSY 3 704 197 12 SCREW M1 4 x 2 0 LOCKING a O ee en nn ee ee Ref No Remarks Part No Description Remarks 54 55 3 309 597 31 SCREW 1 4 TAPPING PRECISION A 4540 570 A MICROPHONE ASSY LAVALIER MIC UNIT AMP NOTE SECTION 4 ELECTRICAL PARTS LEST ECM TS125 e Due to standardization replacements in the e CAPACITORS e SEMICONDUCTORS parts list may be different from the parts uF uF In
6. light tells you that the battery still 1 POWER switch 2 Battery check indicator has life When the battery becomes weak the indicator lights dimly or does not light at all 3 L shaped stereo miniplug gold plated 4 Battery box You can clip the battery box to your tie lapel or pocket 5 Microphone jack 6 L shaped stereo miniplug gold plated 7 Battery compartment 8 Microphone 9 Holder clip Interlock the projection of the holder to the groove on the microphone This microphone holder allows you to tilt the microphone 45 backward or forward SAFETY CHECK OUT After correcting the original service problem perform the following safety checks before releasing the set to the customer Check the area of your repair for unsoldered or poorly soldered 4 connections Check the entire board surface for solder splashes and bridges Check the interboard wiring to ensure that no wires are 5 pinched or contact high wattage resistors 6 Look for unauthorized replacement parts particularly transistors that were installed during a previous repair Point them out to the customer and recommend their replacement Look for parts which through functioning show obvious signs of deterioration Point them out to the customer and recommend their replacement Check the B voltage to see it is at the values specified Flexible Circuit Board Repairing e Keep the temperature of the soldering iron around 270 C d
7. uring repairing e Do not touch the soldering iron on the same conductor of the circuit board within 3 times e Be careful not to apply force on the conductor when soldering or unsoldering ECM TS125 SECTION 2 2 1 SCHEMATIC DIAGRAM 2 2 PRINTED WIRING BOARD 1 2 3 4 5 1 2 3 4 5 6 7 MIC UNIT CON esos eee ree ee eee fee as melanie ae cee MIC1 LCH A i UNIT BOARD UNIT BOARD A j SAHA i SIDE A SIDE B l I MICt MINI l Cen l PLUG C B B l I Io l C l 11 JD 1 673 682 l MIC2 RCH l ced l paaa Mea l MINI PLUG l MIC OUT l l l O C i I Ji l l i MIC IN l D AMP BOARD SIDE A AMP BOARD SIDE B 20 ty O15AZ4 7 ty D na l eee E I 14 2 9 B x c14 MINI check i o E Ee Ae F L Pue o T e Lame R S1 10 2 3 F POWER eal LITHIUM 5 1 BATTERY 0 04 ar 05 01SAZ4 7 MIC OUT CN oR 2025 a 2SC4116YG ea i 4 3V I MIC AMP Es OFF Bt OT oA i me cuRRENT S o o MIC UNIT nS R22 gx si B A CONNECT 700uA e 22M F POWER ti RI DISCONNECT 460uA F ON 33 10k G 42 3 47 1 0 i al Le
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