Sony Pressman TCM-50DV Service Manual Download Page 6 | Manualshive

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Sony Pressman TCM-50DV Service Manual Download Page 6

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SECTION 3

DISASSEMBLY

•

The equipment can be removed using the following procedure.

Note : Follow the disassembly procedure in the numerical order given.

3-1. CABINET (REAR), CASSETTE LID ASSY

1

two screws

(screw (B1.7x9), tapping)

two screws

(screw (B1.7x9), tapping)

3

two claws

4

cabinet (rear)

5

LED flexible board

6

shaft (A), stopper

7

screw, ornamental

8

screw, ornamental

9

cassette lid assy

Cabinet (rear),
Cassette Lid Assy

Mechanism Deck,
Main board

Belts
Head
Motor, DC

www. xiaoyu163. com

QQ 376315150

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TEL 13942296513

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TEL 13942296513 QQ 376315150 892498299

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

http://www.xiaoyu163.com

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Summary of Contents for Pressman TCM-50DV

Page 1: ...er requirements 3 V DC batteries AA R6 2 External DC 3 V power sources Battery life Approx hours EIAJ Sony alkaline LR6 SG Sony R6P SR Playback 9 5 1 5 Recording 10 5 2 Measured value by the standard of EIAJ Electronic Industries Association of Japan Using a Sony HF series cassette tape SPECIFICATIONS Dimensions w h d inci projecting parts and controls Approx 88 7 115 3 37 2 mm 3 1 2 4 5 8 1 1 2 i...

Page 2: ...oard Cassette Machanism 7 3 3 Belt 8 3 4 Head 8 3 5 Motor DC 9 3 6 Note for Installation of Main Board 9 4 MECHANICAL ADJUSTMENTS 10 5 ELECTRICAL ADJUSTMENTS 10 6 DIAGRAMS 6 1 Block Diagram 11 6 2 Printed Wiring Board Main Section 13 6 3 Schematic Diagram Main Section 15 6 4 Printed Wiring Board Panel Section 17 6 5 Schematic Diagram Panel Section 18 6 6 IC Pin Description 20 7 EXPLODED VIEWS 7 1 ...

Page 3: ...3 Supply DC 3 0 V to the positive and negative terminals of the battery with a stabilized power supply 2 FF mode 1 Apply a trapezoidal to hall sensor TP20 2 Press the FF key 3 Turn on the S103 POWER switch 3 REW mode 1 Apply a trapezoidal to hall sensor TP20 2 Press the REW key 3 Turn on the S103 POWER switch 4 PLAY mode 1 Apply a trapezoidal to hall sensor TP20 2 Press the PLAY key 3 Change over ...

Page 4: ...rom instruction manual www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 5: ...63 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 6: ...1 7x9 tapping 3 two claws 4 cabinet rear 5 LED flexible board 6 shaft A stopper 7 screw ornamental 8 screw ornamental 9 cassette lid assy Cabinet rear Cassette Lid Assy Mechanism Deck Main board Belts Head Motor DC www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 htt...

Page 7: ... solders 4 head flexible board 5 two screws screw M1 4 toothed lock 6 MAIN board www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 8: ...ounter How to apply the belts 1 two screws 2 head magnetic REC PB ERASE www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 9: ...ain board 3 5 MOTOR DC 3 Remove the four solders 1 screw 1 4 2 screw 1 4 4 Motor DC MAIN board S103 S101 S701 screws M1 4 toothed lock mechanism deck lever PAUSE lever REC lever erase proof 2 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com htt...

Page 10: ...ing on the digital frequency counter becomes 3 000 Hz 2 REC TIME DOUBLE FWD Playback WS 48A tape center part and adjust RV602 so that reading on the digital frequency counter becomes 1 500 Hz Specification Value Digital Frequency Counter Reading REC TIME NORMAL REC TIME DOUBLE 2 985 to 3 015 Hz 1 485 to 1 515 Hz 3 REC TIME NORMAL REV ª Playback WS 48A tape center part and confirm that the reading ...

Page 11: ...MOTOR CONTROL Q705 DIRECTION MOTOR BRAKE SW Q601 604 19 M901 CAPSTAN REEL MOTOR W OUT V OUT U OUT 11 2 1 20 13 12 BIAS REF VOLTAGE PULSE DET OPERATION LOGIC PRE DRIVER CURRENT DET FREQ CHARC REF VOLTAGE FOR SPEED CONTROL DIR S S IN OSC S101 4 REC PB PB REC RV601 TAPE SPEED REC TIME NORMAL RV602 TAPE SPEED REC TIME DOUBLE REC TIME S903 2 DOUBLE NORMAL REC TIME S903 1 NORMAL DOUBLE ON OFF FWD REV SW...

Page 12: ...601 C 8 IC701 C 1 IC702 C 2 PH701 D 1 Q101 H 10 Q102 D 9 Semiconductor Location Ref No Location Ref No Location Ref No Location Q501 E 2 Q601 B 10 Q602 B 10 Q603 B 9 Q604 B 9 Q701 D 2 Q702 D 1 Q703 D 2 Q704 D 9 Q705 C 2 Q706 B 2 Q707 B 2 Q708 D 1 6 2 PRINTED WIRING BOARD MAIN SECTION Note on Printed Wiring Boards X parts extracted from the component side Through hole b Pattern from the side which ...

Page 13: ... voltage jack Voltage is dc with respect to ground under no signal detuned condition no mark PB REC FF REW Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Signal path E PB a REC Page 18 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL ...

Page 14: ...ote on Printed Wiring Boards X parts extracted from the component side Through hole b Pattern from the side which enables seeing 6 5 SCHEMATIC DIAGRAM PANEL SECTION 6 4 PRINTED WIRING BOARD PANEL SECTION Page 14 Page 15 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL...

Page 15: ...Q IN MIC IN Vref OUT MIC VCC R F OUT LED DRIVE R P SW PAUSE P R MUTE GVN CONT GVN Vref Vs GVN GND GVN OUT PRE NF PRE OUT REG IN REG OUT ALC CONT VOX CONT VOX DELAY GNV SPEED UP AUT STOP CONT AUT STOP IN PWR IN PWR OUT1 PWR GND PWR OUT2 Vcc 1 2 3 4 8 7 6 5 GND AMP OUT GAIN CONT INPUT VCC OUTPUT2 OUTPUT1 RECOVERY TIME CAP 1 2 3 4 5 6 7 8 VOLTAGE UP CIRCUIT VREF NC VCC VS HYS NC CT GND OUT IC Block D...

Page 16: ...or tape end detection 11 IN8 I FWD REV switch L FWD H REV 12 I O1 Not used 13 I O2 Not used 14 OUT8 Not used 15 OUT7 Not used 16 OUT6 Not used 17 OUT5 O LED ON OFF L ON H OFF 18 OUT4 O Audio mute L ON H OFF 19 OUT3 O Motor brake L ON H OFF 20 OUT2 O Motor direction L FWD H REV 21 OUT1 O Motor ON OFF L ON H OFF 22 VDD Power supply for CMOS 23 CONT O Boosting circuit control output 24 VCC Power supp...

Page 17: ...AMENTAL 4 3 925 231 01 REFLECTOR 5 3 035 304 11 CUSHION 6 3 676 387 00 POLY SLIDER DIA 1 6 7 3 315 384 31 WASHER STOPPER 8 X 3370 480 1 TOGGLE ASSY 9 3 311 772 11 SHAFT A STOPPER 10 3 032 431 01 KNOB PAUSE 11 3 032 432 01 KNOB DIR 12 X 3376 766 1 LEVER ASSY COVERING INDICATION 13 3 328 319 01 STRAP HAND 14 9 911 815 01 CUSHION 15 3 032 434 01 LID BATTERY CASE 16 3 032 441 01 SHEET PICK 17 3 032 43...

Page 18: ...V O R 64 3 032 419 01 KNOB MIC SENS 65 3 032 418 01 FRAME CASSETTE LID 66 3 032 439 01 CUSHION FRAME 67 4 017 491 01 CUSHION B 68 3 032 424 01 PANEL MICROPHONE 69 1 672 149 11 LED BOARD 70 3 035 305 01 CUSHION 71 1 672 139 11 LED FLEXIBLE BOARD 72 3 032 414 01 CUSHION MICROPHONE 73 3 032 425 01 HOLDER MICROPHONE 74 3 032 415 01 RETAINER MICROPHONE 75 3 318 382 01 SCREW 1 7X3 TAPPING 76 3 032 430 0...

Page 19: ...601 01 SPRING TENSION 113 3 924 534 01 LEVER C R 114 X 3370 378 1 LEVER HEAD ASSY 115 4 017 441 01 CUSHION B 116 3 938 133 01 SCREW 117 3 365 630 02 SCREW M1 4 118 3 924 535 01 LEVER FR 119 X 3370 375 1 TABLE ASSY REEL 120 3 018 121 01 SPRING B T COMPRESSION 121 3 924 536 01 LEVER OFF 122 3 321 483 11 RING RETAINING 123 3 924 569 14 PAD S OFF 124 3 924 602 01 SPRING TENSION 125 3 924 538 12 LEVER ...

Page 20: ...5 01 LEVER LOCK 176 3 924 546 01 LEVER SW 177 3 924 606 01 SPRING LOCK TENSION 178 3 924 725 01 REFLECTOR 179 3 924 579 01 GEAR REF 180 3 348 993 01 WASHER 181 X 3370 376 1 LEVER CENTER ASSY 182 3 924 556 01 GEAR REW 183 3 924 562 01 GEAR FF 184 3 924 560 01 GEAR REEL 185 3 924 600 01 SPRING REC TENSION 186 3 032 620 01 BELT COUNTER 187 3 704 245 42 SCREW 1 4 188 3 032 438 01 BRACKET COUNTER 189 1...

Page 21: ...001uF 10 50V C121 1 124 778 00 ELECT CHIP 22uF 20 6 3V C123 1 164 161 11 CERAMIC CHIP 0 0022uF 10 100V C124 1 163 038 00 CERAMIC CHIP 0 1uF 25V C125 1 163 038 00 CERAMIC CHIP 0 1uF 25V C126 1 135 151 21 TANTALUM CHIP 4 7uF 20 4V C127 1 164 346 11 CERAMIC CHIP 1uF 16V C128 1 164 161 11 CERAMIC CHIP 0 0022uF 10 100V C129 1 164 346 11 CERAMIC CHIP 1uF 16V C130 1 163 001 11 CERAMIC CHIP 220PF 10 50V C...

Page 22: ...YG Q301 8 729 402 93 TRANSISTOR UN5214 TX Q302 8 729 230 63 TRANSISTOR 2SC4116 YG Q303 8 729 230 63 TRANSISTOR 2SC4116 YG Q501 8 729 230 63 TRANSISTOR 2SC4116 YG Q601 8 729 402 96 TRANSISTOR UN5114 Q602 8 729 402 93 TRANSISTOR UN5214 TX Q603 8 729 823 86 TRANSISTOR 2SA1745 Q604 8 729 823 86 TRANSISTOR 2SA1745 Q701 8 729 402 93 TRANSISTOR UN5214 TX Q702 8 729 230 63 TRANSISTOR 2SC4116 YG Q703 8 729...

Page 23: ...703 1 216 073 00 METAL CHIP 10K 5 1 10W R704 1 216 073 00 METAL CHIP 10K 5 1 10W R705 1 216 073 00 METAL CHIP 10K 5 1 10W R706 1 216 073 00 METAL CHIP 10K 5 1 10W R707 1 216 089 00 RES CHIP 47K 5 1 10W R708 1 216 035 00 METAL CHIP 270 5 1 10W VARIABLE RESISTOR RV101 1 223 931 11 RES VAR CARBON 10K VOL RV601 1 238 663 11 RES ADJ CARBON 4 7K RV602 1 223 584 11 RES ADJ CARBON 2 2K RV603 1 223 931 11 ...

Page 24: ...in Japan C1999 2 Published by Quality Engineering Dept Shinagawa www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 25: ... new and former boards check the part code of the printed wiring board marked on the board Note When the main board has a suffix number of 12 refer to the schematic diagram printed circuit diagram parts list for the main board having a suffix number of 11 MAIN board parts No Former type 1 672 148 11 or 12 New type 1 672 148 21 MAIN board side A SPM 00025 Ver 1 1 2000 08 www xiaoyu163 com QQ3763151...

Page 26: ... replacing the motor or main board by a new part replace the appropriate components on the main board For details refer to 2 Replacing the Board Motor on page 4 1 1 Printed Wiring Board page 13 NEW TYPE Board with the suffix No 21 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 3763151...

Page 27: ...5 1 10W 1 763 273 11 MOTOR DC including PULLEY CAPSTAN REEL 26 Ref No Part No Description Remark C610 R602 1 216 085 00 METAL CHIP 33K 5 1 10W R607 1 216 069 00 METAL CHIP 6 8K 5 1 10W 115 4 017 441 01 CUSHION B 126 1 657 172 11 MOTOR FLEXIBLE BOARD M901 1 698 804 21 MOTOR DC including PULLEY CAPSTAN REEL 27 1 4 Part List 23 125 126 127 128 129 115 not supplied M901 125 127 128 129 not supplied M9...

Page 28: ...e the motor flexible board is soldered Therefore the board cannot be used as it is Remove the motor flexible board and connect the terminals with lead wire 2 2 Replacing the motor when replacing by the new motor without changing the board with suffix No 11 or 12 Page BEFORE CHANGE AFTER CHANGE Part No Description Remark 1 107 823 11 CERAMIC CHIP 0 47uF 10 16V 1 216 081 00 RES CHIP 22K 5 1 10W 1 21...

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