Service Manual TRC-860C. Compact Cassette Recorder FILE NO. Contents (XE) PRODUCT CODE No

Transcription

1 FILE NO. Service Manual Compact Cassette Recorder TRC-86C (XE) Contents PRODUCT CODE No Tape adjustments... 1 Exploded view... 2 Parts list... 3 Schematic diagram... 4 Wiring diagram... 5 REFERENCE No. SM581648

2 TAPE ADJUSTMENTS a. Adjusting Azimuth Be sure to clean the heads before attempting to make any adjustment. After completion of the adjustment, apply the threadlock (TB-141B) to the azimuth adjustment screws to fix them securely. (1) Load an azimuth adjustment test tape (VTT-73 etc., 1 khz) in tape deck. (2) Press the button. (3) Use a cross-tip screwdriver to turn the screw for azimuth adjustment so that the left and right outputs are maximized. (4) Press the STOP button. HEAD AZIMUTH ADJUSTMENT b. Replacing the Head After replacing the head, demagnetize the head by using a degausser. All wiring should be returned to the original position after work is completed. WHITE R / P HEAD EARTH c. Adjusting Tape Speed Use a plastic screwdriver for adjustment. (1) Inset the test tape (TCC-119 etc., 3 Hz). (2) Press the button. (3) Use a flat-tip screwdriver to turn the VR43 to adjust so that the frequency counter becomes 3 Hz. MOTOR SPEED ADJUSTMENT SPEED d. Checking the Mechanism Torques Clean the head, capstan and pinch roller before making any measurement. Measurement Take-up torque Back tension Tape tension Cassette for : TW-2111A : TW-2111A Drive-power cassette measurement F.FWD / REW : TW-2231 TW ~5 gr.cm 1.~5. gr.cm 3 gr or more F.FWD 55 gr.cm more REW 55 gr.cm more

3 EXPLODED VIEW Y Y3 Y2 Y Y Y5 Y5-2 - This is a basic exploded view.

4 PARTS LIST PRODUCT SAFETY NOTICE EACH PAUTION IN THIS MANUAL SHOULD BE FOLLOWED DURING SERVICING. COMPONENTS IDENTIFIED WITH THE IEC SYMBOL! IN THE PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATED COMPONENTS IN WHICH SAFETY AND PERFORMANCE CAN BE OF SPECIAL SIGNIFICANCE. WHEN REPLACING A COMPONENT IDENTIFIED BY!, USE ONLY THE REPLACEMENT PARTS DESIGNATED, OR PARTS WITH THE SAME RATINGS OF RESISTANCE, WATTAGE OR VOLTAGE THAT ARE DESIGNATED IN THE PARTS LIST IN THIS MANUAL. LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS MUST BE MADE TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE PRODUCT TO THE CUSTOMER. CAUTION : N.S.P : Regular type resistors and capacitors are not listed. To know those values, refer to the schematic diagram. Regular type resistors are less than 1/4 W carbon type and ohm chip resistors. Regular type capacitors are less than 5 V and less than 1 µf type of Ceramic type and Electrical type. Not available as service parts. PACKING & ACCESSORIES CARTON CASE,INNER,INNER CASE,CARRYING INSTRUCTION MANUAL CABINET & CHASSIS DEC,ESCUTCHEON DEC,WINDOW SPRING,OPEN ASSY,LID,CASSETTE COVER,LID LEVER, SPRING,WIRE, LEVER ASSY,CABINET COUNTER SPACER,MECHA,COUNTER STRAP,SET BUTTON, BUTTON, BUTTON,STOP BUTTON,REW BUTTON,FWD BELT,SQUARE,COUNTER LEVER,RP TERMINAL,BATTERY(-) TERMINAL,(+) KNOB,SLIDE,VAS LID,BATTERY CABINET,BOTTOM KNOB,SLIDE,PAUSE ASSY,MECHA,TM-86CTN-SH (For details as described later) FIXING PARTS Y SCR TPG PAN PCS 1.7X4, CASSETTE/ESCUTCHEON Y SCR TPG PAN PCS 1.7X4, CASSETTE/COVER Y SCR S-TPG PAN 2X5,MECHA/CABI Y SCR S-TPG PAN 2X6,PWB/CABI Y SCR S-TPG PAN 2X8, CABI-CABI REAR AMPLIFIER P.W.BOARD ASSY ASSY,PWB,AMP(Only initial) CN JACK,PHONE D3.6 CN JACK,PHONE D3.6 CN SOCKET,DC D LED SLZ-1G81B-22-AB-T2 D ZENER DIODE UDZS1B D ZENER DIODE UDZS1B D DIODE 1SS355 D DIODE 1SS355 D DIODE RB161M-2 IC IC LA4167M S SWITCH,PUSH or SWITCH,PUSH,4-2 S SWITCH,SLIDE 1P-2T S SWITCH,SLIDE S SWITCH,SLIDE 2P-2T VR VR,ROTARY 1KBX1 or VR,ROTARY 1KBX1 VR VR,SEMI,1K S TAPE MECHANISM ASSY,MECHA,TM-86CTN-SH HEAD,ERASE HEAD,R/P AUDIO ASSY,MOTOR ASSY,PINCH ROLLER MAIN BELT - 3 -

5 SCHEMATIC DIAGRAM R4916 C4927 C /4 3.3K 47P This is a basic schematic diagram. CN43 C /4 39 D494 UDZS1B D497 RB161M R499 1 D K 15 SLZ-181B R493 1K D492 UDZS1B VR43 1.K R4923 R K D496 D495 1SS355 1K C /6.3 C P C K 47 R R466 IC41 LA4167M C4936 R498.1 C494.1 R493 1K 3.9K 47K 4.7/16 C /5 R496 R495 C497 C496 1/5 S492 S491-1 R K L CN41-1 1K 8.2K R4613 1K S498 R K R4611 1K C493 1/5 C4931 1/5 C /4 C /4 C /6.3 S493 C C499 22/6.3 C4913 R492 C /4 VR41 R492 C495 1KB 5.6K.1/5 CN42 + * 27K 1SS RX GVN PAUSE RX RX 2K MIC VCC R/P VREF 2K MIC ALC VOX EQ 51.5dB R.F RX 3K 1 2 R491 R491 C /4 VOX CUE-TONE POWER EXT-MIC 4.7K R K C P C * * S491-2 R/P-HEAD EARPHONE EXTDC SP41 SPEAKER 8 OHM OFF ON S491 : ORD/ SWITCH S492 : VAS SWITCH S493 : PAUSE SWITCH S496 : POWER SWITCH S498 : 4.8/2.4 SWITCH S491-3 MIC41 S496 BATT/3V ON OFF (V) ON OFF (V) VAS S491-4 S

6 - 5 - SANYO Electric Co., Ltd. Osaka, Japan Aug. / '4 BB Printed in Japan BATT+ BATT- 1AD4B1D179A S3 94HB D491 D491 C4923 C4923 C4921 C4921 R499 R499 R496 R496 CANC4912 CANC4912 R491 R491 R495 R495 R492 R492 R57 R57 R51 R51 D491 C4915 C4923 C4921 C493 J417 C496 C498 J414 J412 J411 J427 J418 J423 J415 S492 C497 CN43 CN43 J4213 J4213 CAND461 CAND461 CANQ466 CANQ466 CANQ465 CANQ465 CANR463 CANR463 CANQ462 CANQ462 CANR4623 CANR4623 R513 R513 CN43 J42 C4932 C495 C4931 C493 J44 S498 J426 J428 J421 J4213 J424 VR41 CN41 CN42 (EAR) (MIC) J41 J421 C499 (4.8) (2.4) J413 J425 J4211 J429 J4212 J45 J46 J43 (PAUSE) (VAS) (SLOW) (NORM) (FAST) IC41 S491 S493 J419 J419 R462 R462 R466 R466 R4613 R4613 CANR4629 CANR4629 CANQ461 CANQ461 R512 R512 R514 R514 R519 R519 R52 R52 R521 R521 R522 R522 R523 R523 J419 J416 C4928 C4922 C4917 R499 C4916C4936 CANR497 CANR497 C494 C494 C4925 C4925 D492 D492 CANQ463 CANQ463 CANR4627 CANR4627 R52 R52 R516 R516 R517 R517 CANR497 R496 R498 CANC4912 C4913 R491 R495 R4916 C4927 C494 R493 C4929 C4925 R4919 R492 R492 D495 D496 D494 R462 R466 R4923 R4924 VR43 R4611 R4612 D492 R493 R491 C4935 R4981 C4937 R4613 CAND462 CAND461 CANR4633 CANR4634 CANQ466 CANQ465 CANR4632 CANR4632 CANR4631 CANR4631 CANR4626 CANR4626 CANR4632 CANR4631 CANR4629 CANR463 CANR4625 CANR4626 CANQ463 CANQ464 CANQ462 CANQ461 CANR4627 CANR4628 CANR4624 CANR4623 R53 R54 CANR4931 R55 R56 R57 R58 R59 R59 R59 R52 R51 R511 R512 R513 R514 R515 R516 R517 R518 R518 R518 R519 R52 R521 R522 R523 R524 R525 R51 D497 This is a basic wiring diagram. WIRING DIAGRAM