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Sony TC-WE435 Service Manual
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Sony TC-WE435 Service Manual

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3 7 63 1515 0
SERVICE MANUAL
Ver 1.1 2001. 05
Dolby noise reduction extension manufactured under license
from Dolby Laboratories Licensing Corporation.
HX Pro originated by Bang & Olufsen. "DOLBY", the double-D
symbol a and "HX PRO" are trademarks of Dolby Laboratories
Licensing Corporation.
TE
L 13942296513
www
.
9-928-829 -12
Sony Corporation
Personal Audio Company
2001E0200-1
Shinagawa Tec Service Manual Production Group
© 2001.5
http://www.xiaoyu163.com
x
ao
u163
y
i
http://www.xiaoyu163.com
TC-WE435
2 9
8
Model Name Using Similar Mechanism
Transport Mechanism Type
Q Q
3
6 7
1 3
1 5
SPECIFICATIONS
STEREO CASSETTE DECK
co
.
– 1 –
9 4
2 8
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
TC-WE425/WE525/WR681
DECK A
TCM-230ASR3/HSR3
DECK B
TCM-230ASR4/HSR4
0 5
8
2 9
9 4
2 8
— Continued on next page —
m
9 9
9 9

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  • Page 1 TC-WE435 http://www.xiaoyu163.com 3 7 63 1515 0 SERVICE MANUAL US Model Canadian Model Ver 1.1 2001. 05 AEP Model UK Model E Model Australian Model Chinese Model Dolby noise reduction extension manufactured under license Model Name Using Similar Mechanism TC-WE425/WE525/WR681 from Dolby Laboratories Licensing Corporation.
  • Page 2 LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

  • Page 3: Table Of Contents

    http://www.xiaoyu163.com 3 7 63 1515 0 MODEL IDENTIFICATION TABLE OF CONTENTS 1. GENERAL –Back panel– ................4 2. DISASSEMBLY 2-1. Case ..................5 Part No. 2-2. Front Panel Assembly ............5 2-3. Cassette Lid Assembly (Deck A/B) ........6 2-4. Mechanism Deck Assembly (Deck A/B) ......6 2-5.

  • Page 4: General

    http://www.xiaoyu163.com SECTION 1 GENERAL 3 7 63 1515 0 Front Panel LOCATION OF PARTS AND CONTROLS 18 § (Eject) (Deck B) button 1 U button 19 REC MUTING R button 2 RESET (Deck A) button 20 PAUSE P button 3 MEMORY (Deck A) button 21 p (Deck B) button 4 RESET (Deck B) button 22 DOLBY NR OFF B/C switch...

  • Page 5: Disassembly

    http://www.xiaoyu163.com SECTION 2 DISASSEMBLY 3 7 63 1515 0 Note : Follow the disassembly procedure in the numerical order given. 2-1. CASE 4 Case 3 Two Screws (Case 3 TP2) 1 Screw (BVTT 3x6) 2 Two Screws (Case 3 TP2) L 13942296513 2-2.

  • Page 6: Cassette Lid Assembly (Deck A/B)

    http://www.xiaoyu163.com 3 7 63 1515 0 2-3. CASSETTE LID ASSEMBLY (DECK A/B) 1 Push the EJECT button. 3 Cassette lid assy 2 Four claws L 13942296513 2-4. MECHANISM DECK ASSEMBLY (DECK A/B) 3 Mechanism deck assy 1 Two screws (BVTP 2.6x8) u163 2 Two screws (BVTP 2.6x8)

  • Page 7: Leaf Sw (Pb) Board (Deck A), Leaf Sw (Rec/Pb) Board (Deck B)

    http://www.xiaoyu163.com 3 7 63 1515 0 2-5. LEAF SW (PB) BOARD (DECK A), LEAF SW (REC/PB) BOARD (DECK B) 1 Two screws (PS 2.6x6) L 13942296513 5 Screw 2 Capstan motor assy (BVTT 2x4) 4 Screw (BVTT 2x4) 7 LEAF SW (PB) board 3 Wires (Deck A) LEAF SW (REC/PB) board...

  • Page 8: Pinch Lever (Fwd)/(Rev) Assembly (Deck A/B)

    http://www.xiaoyu163.com 3 7 63 1515 0 2-6. PINCH LEVER (FWD)/(REV) ASSEMBLY (DECK A/B) 4 Pinch lever (FWD) assy 2 Pinch lever (REV) assy 1 Claw 3 Claw L 13942296513 2-7. FLYWHEEL (FWD)/(REV) ASSEMBLY (DECK A/B) 1 Belt (FR2) 3 Flywheel (FWD) assy 6 Flywheel (REV) assy 4 Washer 7 Washer...

  • Page 9: Mechanical Block Assembly (Deck A/B)

    http://www.xiaoyu163.com 3 7 63 1515 0 2-8. MECHANICAL BLOCK ASSEMBLY (DECK A/B) 2 Two screws 3 Two screws (BVTT 2x3.5) (BVTT 2x3.5) 4 Mechanical block assy 1 Torsion spring 5 Reverse slider L 13942296513 2-9. HEAD RELAY (PB) BOARD (DECK A), HEAD RELAY (REC/PB) BOARD (DECK B) 3 Tension spring (HEAD) 4 Head deck assy 2 HEAD RELAY (PB) board...

  • Page 10: Service Mode

    http://www.xiaoyu163.com SECTION 3 SERVICE MODE 3 7 63 1515 0 KEY CHECK & DISPLAY CHECK MODE While pressing the ª (A deck) and REC MUTING R buttons with the power off, press the U button to turn on the power. The fluorescent indicator tube displays the number or special message corresponding to the button pressed.

  • Page 11: Mechanical Adjustments

    http://www.xiaoyu163.com SECTION 4 SECTION 5 3 7 63 1515 0 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS PRECAUTION PRECAUTION 1. Clean the following parts with a denatured alcohol-moistened 1. The adjustment should be performed in the publication. swab : (Be sure to male playback adjustment at first.) record/playback/erase head pinch roller 2.
  • Page 12 http://www.xiaoyu163.com 3 7 63 1515 0 Record/Playback Head Azimuth Adjustment Tape speed Adjustment DECK A DECK B DECK A DECK B Adjust DECK A first Procedure: Procedure: 1. Forward Playback Mode – Forward Playback Mode – test tape test tape P-4-A100 WS-48B level meter...
  • Page 13 http://www.xiaoyu163.com 3 7 63 1515 0 Bias Consumption Current Adjustment DECK B Record Level Adjustment DECK B Setting: This adjustment should be performed when replacing the head assy REC LEVEL knob : standard record position (See page 11.) or the bias oscillator transformer (T141, T241). Procedure: Setting: 1.
  • Page 14 http://www.xiaoyu163.com 3 7 63 1515 0 Adjustment Location: main board [MAIN board] (Component side) RV221 RV121 PB LEVEL RV101 PB LEVEL DECK B (R) DECK B (L) LEVEL (L) IC551 RV201 IC801 RV111 RV211 PB LEVEL PB LEVEL LEVEL (R) DECK A (L) DECK A (R) BIAS CURRENT...

  • Page 15: Diagrams

    TC-WE435 SECTION 6 DIAGRAMS 3 7 6 3 1 5 1 5 0 6-1. CIRCUIT BOARDS LOCATION WAVEFORMS THIS NOTE IS COMMON FOR PRINTED WIRING – MAIN SECTION (3/4) – BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)

  • Page 16: Printed Wiring Board - Main Section

    TC-WE435 3 7 6 3 1 5 1 5 0 • Semiconductor 6-2. PRINTED WIRING BOARD – MAIN SECTION – Location • See page 15 for Circuit Boards Location. Ref. No. Location D306 G-10 D307 G-10 (Page 36) D318...

  • Page 17: Schematic Diagram - Main Section - (1/4)

    TC-WE435 3 7 6 3 1 5 1 5 0 6-3. SCHEMATIC DIAGRAM – MAIN (1/4) SECTION – (Page 33) (Page 1 3 9 4 2 2 9 6 5 1 3 (Page (Page 27) w w w u 1 6 3 (Page 21) –...
  • Page 18 TC-WE435 3 7 6 3 1 5 1 5 0 6-4. SCHEMATIC DIAGRAM – MAIN (2/4) SECTION – • See page 17 for Printed Wiring Board. (Page (Page 20) (Page 23) (Page 23) (Page (Page 33) (Page 1 3 9 4 2 2 9 6 5 1 3...
  • Page 19 TC-WE435 3 7 6 3 1 5 1 5 0 6-5. SCHEMATIC DIAGRAM – MAIN (3/4) SECTION – • See page 16 for Waveforms. • See page 17 for Printed Wiring Board. • See page 41 for IC Pin Functions.
  • Page 20 TC-WE435 3 7 6 3 1 5 1 5 0 6-6. SCHEMATIC DIAGRAM – MAIN (4/4) SECTION – (Page 23) (Page 24) (Page 24) (Page (Page 33) (Page 1 3 9 4 2 2 9 6 5 1 3...

  • Page 21: Printed Wiring Board - Deck A Section

    TC-WE435 3 7 6 3 1 5 1 5 0 6-7. PRINTED WIRING BOARD – DECK A SECTION – 6-9. PRINTED WIRING BOARD – DECK B SECTION – • See page 15 for Circuit Boards Location. • See page 15 for Circuit Boards Location.

  • Page 22: Schematic Diagram - Display Section

    TC-WE435 3 7 6 3 1 5 1 5 0 6-11. SCHEMATIC DIAGRAM – DISPLAY SECTION – 1 3 9 4 2 2 9 6 5 1 3 w w w (Page 23) u 1 6 3 – 29 –...

  • Page 23: Printed Wiring Board - Display Section

    TC-WE435 3 7 6 3 1 5 1 5 0 6-12. PRINTED WIRING BOARD – DISPLAY SECTION – • See page 15 for Circuit Boards Location. (Page 18) 1 3 9 4 2 2 9 6 5 1 3 •...

  • Page 24: Schematic Diagram - Panel Section

    TC-WE435 3 7 6 3 1 5 1 5 0 6-13. SCHEMATIC DIAGRAM – PANEL SECTION – (Page 23) (Page 26) (Page 23) 1 3 9 4 2 2 9 6 5 1 3 (Page 19) (Page 21) w w w u 1 6 3 –...

  • Page 25: Printed Wiring Board - Panel Section

    TC-WE435 3 7 6 3 1 5 1 5 0 6-14. PRINTED WIRING BOARD – PANEL SECTION – • See page 15 for Circuit Boards Location. (Page 17) (Page 18) 1 3 9 4 2 2 9 6 5 1 3...

  • Page 26: Schematic Diagram - Power Section

    TC-WE435 3 7 6 3 1 5 1 5 0 6-15. SCHEMATIC DIAGRAM – POWER SECTION – 1 3 9 4 2 2 9 6 5 1 3 (Page 24) w w w u 1 6 3 – 37 –...

  • Page 27: Printed Wiring Board - Power Section

    TC-WE435 3 7 6 3 1 5 1 5 0 6-16. PRINTED WIRING BOARD – POWER SECTION – • See page 15 for Circuit Boards Location. 1 3 9 4 2 2 9 6 5 1 3 (Page 18)

  • Page 28: Ic Pin Function

    TC-WE435 3 7 6 3 1 5 1 5 0 6-17. IC PIN FUNCTION • IC801 SYSTEM CONTROL (CXP82220-052Q) (MAIN board) Pin No. Pin Name Function Pin No. Pin Name Function CAP, M3 (A) PLAYSW (B) Play switch input (DECK B)

  • Page 29: Exploded Views

    http://www.xiaoyu163.com Ver 1.1 2001.05 SECTION 7 EXPLODED VIEWS 3 7 63 1515 0 NOTE: The components identified by • Abbreviation • Items marked “*” are not stocked since they are mark ! or dotted line with mark CND : Canadian model seldom required for routine service.

  • Page 30: Chassis Section

    http://www.xiaoyu163.com 3 7 63 1515 0 7-2. CHASSIS SECTION US, CND 4 E (Except SP,MY) T901 not supplied AEP, SP, MY not supplied L 13942296513 Les composants identifiés par une The components identified by 4B and 4E are including into the mounted PANEL board (Ref No. 163). mark ! or dotted line with mark marque ! sont critiques pour la TRANS (A) board (EXCEPT SP, MY)

  • Page 31: Cassette Holder Section

    http://www.xiaoyu163.com Ver 1.1 2001.05 3 7 63 1515 0 7-3. CASSETTE HOLDER SECTION (Deck A) TCM-230ASR3/HSR3 (Deck B) TCM-230ASR4/HSR4 L 13942296513 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3377-097-1 LID (A) ASSY, CASSETTE…(BLACK) 3-019-455-01 SPRING (R), LOADING X-4952-720-1 LID (A) ASSY, CASSETTE…(SILVER) 3-019-451-01 PLATE (R), FULCRUM X-3376-716-1 LID (B) ASSY, CASSETTE…(BLACK)

  • Page 32: Front Panel Section

    X-4952-719-1 PANEL ASSY, FRONT…(SILVER) 1-769-950-11 WIRE (FLAT TYPE)(11 CORE) 3-021-239-01 KNOB (REC) * 163 A-2007-814-A PANEL BOARD, COMPLETE (EXCEPT SP,MY) 4-996-698-41 EMBLEM, SONY 4-977-593-01 RING (DIA. 50), ORNAMENTAL (EXCEPT US,CND) * 163 A-2007-815-A PANEL BOARD, COMPLETE (SP,MY) * 155 4-978-398-21 CUSHION...

  • Page 33: (Deck A: Tcm-230Asr3/Hsr3)

    http://www.xiaoyu163.com 3 7 63 1515 0 7-5. TAPE MECHANISM SECTION (DECK A: TCM-230ASR3/HSR3) (DECK B: TCM-230ASR4/HSR4) M1001 (Deck A) M1002 (Deck B) Deck B L 13942296513 209 211 Deck A Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-016-574-01 SPRING (HEAD), TENSION (DECK A)

  • Page 34: Electrical Parts List

    http://www.xiaoyu163.com HEAD RELAY (PB) SECTION 8 ELECTRICAL PARTS LIST HEAD RELAY (REC/PB) 3 7 63 1515 0 LEAF SW (PB) LEAF SW (REC/PB) MAIN Note: • SEMICONDUCTORS When indicating parts by reference In each case, u: µ , for example: number, please include the board uA...: µ...
  • Page 35 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C121 1-162-294-31 CERAMIC 0.001uF C441 1-136-293-11 FILM 0.0082uF 5% 100V C122 1-162-282-31 CERAMIC 100PF C442 1-136-173-00 FILM 0.47uF C123 1-137-372-11 FILM 0.022uF C124 1-126-963-11 ELECT...
  • Page 36 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D704 8-719-024-99 DIODE 11ES2-NTA2B Q314 8-729-030-02 TRANSISTOR DTC144ESA D705 8-719-911-19 DIODE 1SS119-25 Q316 8-729-029-56 TRANSISTOR DTA144ESA D706 8-719-911-19 DIODE 1SS119-25 Q317 8-729-029-56 TRANSISTOR DTA144ESA D707 8-719-024-99 DIODE 11ES2-NTA2B...
  • Page 37 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R127 1-249-430-11 CARBON 1/4W R318 1-249-426-11 CARBON 5.6K 1/4W R128 1-249-417-11 CARBON 1/4W F R361 1-247-876-11 CARBON 1/4W R129 1-249-421-11 CARBON 2.2K 1/4W F R362...
  • Page 38 http://www.xiaoyu163.com The PANEL board is composed of following boards. MAIN PANEL 3 7 63 1515 0 (TRANS (A), TRANS (B), DIRECTION, H.P, POWER and RECVOL BOARD) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R706 1-249-419-11 CARBON 1.5K 1/4W F <...
  • Page 39 http://www.xiaoyu163.com PANEL 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < RESISTOR > S933 1-762-875-21 SWITCH, KEYBOARD (FADER) S934 1-762-875-21 SWITCH, KEYBOARD (ARL) R901 1-249-413-11 CARBON 1/4W F S935 1-762-875-21 SWITCH, KEYBOARD (SYNCHRO) R902 1-249-413-11 CARBON 1/4W F...
  • Page 40 TC-WE435 3 7 63 1515 0 Ref. No. Part No. Description Remark ************* HARDWARE LIST ************* 7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S 7-685-871-01 SCREW +BVTT 3X6 (S) 7-685-851-09 SCREW +BVTT 2X4 (S) 7-685-852-04 SCREW +BVTT 2X5 (S) 7-685-902-21 SCREW +PTPWH 2.6X8 (TYPE2) 7-628-254-15 SCREW +PS 2.6X6...
  • Page 41 TC-WE435 3 7 63 1515 0 – MEMO – L 13942296513 u163 – 55 – http://www.xiaoyu163.com...
  • Page 42 TC-WE435 3 7 63 1515 0 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page.

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