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Sony TCM-900DV Service Manual

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3 7 63 1515 0
SERVICE MANUAL
Ver 1.0 2001.02
TE
L 13942296513
Recording system
2-track 1 channel monaural
Tape speed
4.8 cm/s or 2.4 cm/s
Frequency range
150 - 6 300 Hz using nomal (TYPEI) cassette
(with REC TIME switc hat "NORMAL")
Speaker
Approx. 3.6 cm (1 7/16 in.) dia.
Power output
250 mW (at 10 % harmonicdistortion)
Input
Microphone input jack (minijack)
sensitivity 0.12 mV for 3 kilohms or lower impedance
microphone
Output
Earphone jack (minijack) for 8 -300 ohms earphone
Variable range of the tape speed
From approx. +100% to –50% (with
REC TIME switch at "NORMAL")
From approx. +100% to –30% (with
REC TIME switch at "DOUBLE")
www
.
Sony Corporation
9-873-082-11
2001B0200-1
Audio Entertainment Group
© 2001.2
General Engineering Dept.
http://www.xiaoyu163.com
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ao
u163
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i
http://www.xiaoyu163.com
TCM-900DV
2 9
8
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
SPECIFICATIONS
Q Q
3
6 7
1 3
1 5
Variable range of pitch control variation
Approx. +1 octave to –1 octave
Power requirements
3 V DC batteries R6 (AA) x 2
External DC 3 V power sources
Dimensions (w/h/d) (incl. projecting
parts and controls)
Approx. 86.7 x 112.8 x 35.7 mm
(3 1/2 X 4 1/2 X 1 7/16 in.)
Mass
Approx. 200g (7.1 oz.)
Supplied accessories
Headphones with remote control (1)
R6 (size AA) batteries (2)
("Sony World Model" only)
Carrying pouch (1)
Design and specifications are subject
to change without notice.
co
.
9 4
2 8
US Model
Canadian Model
AEP Model
Tourist Model
NEW
MT-900-175
0 5
8
2 9
9 4
2 8
m
CASSETTE-CORDER
9 9
9 9

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Summary of Contents for Sony TCM-900DV

  • Page 1 Headphones with remote control (1) Microphone input jack (minijack) R6 (size AA) batteries (2) sensitivity 0.12 mV for 3 kilohms or lower impedance (“Sony World Model” only) microphone Carrying pouch (1) Output Earphone jack (minijack) for 8 -300 ohms earphone Design and specifications are subject to change without notice.

  • Page 2: Table Of Contents

    TCM-900DV 3 7 63 1515 0 Flexible Circuit Board Repairing TABLE OF CONTENTS • Keep the temperature of the soldering iron around 270°C during Specifications ................1 repairing. • Do not touch the soldering iron on the same conductor of the 1.

  • Page 3: Disassembly

    TCM-900DV SECTION 2 3 7 63 1515 0 DISASSEMBLY • The equipment can be removed using the following procedure. Belt (AR), M601 (Capstan/reel motor), Cabinet (front) Mechanism deck Main board HRPE901 (REC/PB/ERASE head) Cassette lid assy SW board Cabinet (Rear) Note : Follow the disassembly procedure in the numerical order given.

  • Page 4: Main Board

    TCM-900DV 3 7 63 1515 0 2-2. MAIN BOARD Cabinet (front) 2Flexible board ( from HPR901/HE901) Main board Black Orange White 1Remove soldering four lead wires (from M601) 5Screws (M1.4) 4Spring, ground 3Screw L 13942296513 2-3. MECHANISM DECK 1Screws ( IB LOCK )

  • Page 5: Belt (Ar), M601 (Capstan/Reel Motor), Hrpe901 (Rec/Pb/Erase Head)

    TCM-900DV 3 7 63 1515 0 2-4. BELT (AR), M601 (CAPSTAN/REEL MOTOR), HRPE901 (REC/PB/ERASE head) Attaching belt (AR) 7Fly ASSY,Capstan 7Fly ASSY,Capstan 8Washer 1Belt (AR) 8Washer 4Pulley (reverse) 2Screws (M1.4) L 13942296513 3M601 (Capstan/reel motor) 6Washer 5Washer (stopper N)

  • Page 6: Adjustments

    TCM-900DV SECTION 3 ADJUSTMENTS 3 7 63 1515 0 3-1. MECHANICAL ADJUSTMENTS 3-2. ELECTRICAL ADJUSTMENTS PRECAUTION • Standard Level 1. Clean the following parts with a denatured alcohol-moistened Input signal level – 60dBs swab : Output signal level EAR (EARPHONE) 1.6kΩ, –22,4dBs...
  • Page 7 TCM-900DV 3 7 63 1515 0 Tape Speed Adjustment Procedure : Note: Adjust on both sides DIR switch (S701) “ b “ and “ B “. test tape digital frequency WS-48A counter (3kHz, 0dB) 10kΩ EAR (earphone) jack (J102) 1.

  • Page 8: Diagrams

    TCM-900DV SECTION 4 DIAGRAMS 3 7 63 1515 0 Waveforms Note on Schematic Diagram: MAIN SECTION • All capacitors are in µF unless otherwise noted. pF: µµF – MAIN SECTION (2/3) – 50 WV or less are not indicated except for electrolytics and tantalums.

  • Page 9: Block Diagrams -Main Section (1/2)

    TCM-900DV 4-1. BLOCK DIAGRAMS – MAIN SECTION (1/2) – 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 • Signal path.

  • Page 10: Block Diagrams -Main Section (2/2)

    TCM-900DV 4-2. BLOCK DIAGRAMS – MAIN SECTION (2/2) – 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 • Signal path.

  • Page 11: Schematic Diagram - Main Section (1/3)

    TCM-900DV 3 7 6 3 1 5 1 5 0 Refer to page 8 for Notes. Refer to page 8 for Waveforms. Refer to page 20 for IC Block Diagrams. 4-3. SCHEMATIC DIAGRAM – MAIN SECTION (1/3) – 1 3 9 4 2 2 9 6 5 1 3...

  • Page 12: Schematic Diagram - Main Section (2/3)

    TCM-900DV 3 7 6 3 1 5 1 5 0 4-4. SCHEMATIC DIAGRAM – MAIN SECTION (2/3) – Refer to page 8 for Notes. Refer to page 8 for Waveforms. Refer to page 20 for IC Block Diagrams. 1 3 9 4 2 2 9 6 5 1 3...

  • Page 13: Schematic Diagram - Main Section (3/3)

    TCM-900DV 3 7 6 3 1 5 1 5 0 4-5. SCHEMATIC DIAGRAM – MAIN SECTION (3/3) – Refer to page 8 for Notes. Refer to page 8 for Waveforms. Refer to page 20 to 21 for IC Block Diagrams.

  • Page 14: 4-6.Printed Wiring Boards -Main Section (Side A)

    TCM-900DV 4-6. PRINTED WIRING BOARDS – MAIN SECTION ( SIDE A) – 3 7 6 3 1 5 1 5 0 MAIN BOARD (SIDE A) C143 IC102 Q106 Semiconductor Location C144 Q111 Ref. No. Location D401 D401 D402 D402...

  • Page 15: 4-7.Printed Wiring Boards -Main Section (Side B)

    TCM-900DV 4-7. PRINTED WIRING BOARDS – MAIN SECTION ( SIDE B) – 3 7 6 3 1 5 1 5 0 MAIN BOARD (SIDE B) TP82 Q401 TP13 Q115 Q114 CN101 TP47 Q112 TP14 TP51 Semiconductor R110 TP52 Location...

  • Page 16: 4-8.Printed Wiring Boards -Sw Section (Side A)

    TCM-900DV 4-8. PRINTED WIRING BOARDS – SW SECTION ( SIDE A) – 3 7 6 3 1 5 1 5 0 MAIN BOARD SW BOARD CN901 (SIDE A) CN902 22 20 RV901 SP901 MIC901 SPEAKER FLAT MIC CN903 R914...

  • Page 17: 4-9.Printed Wiring Boards -Sw Section (Side B)

    TCM-900DV 4-9. PRINTED WIRING BOARDS – SW SECTION ( SIDE B) – 3 7 6 3 1 5 1 5 0 SW BOARD (SIDE B) TP901 TP908 TP906 R912 TP909 R901 TP903 S909 TP910 1 3 9 4 2 2 9 6 5 1 3...

  • Page 18: 4-10.Schematic Diagram - Sw Section

    TCM-900DV Refer to page 8 for Notes. Refer to page 8 for Waveforms. Refer to page 21 for IC Block Diagrams. 4-10. SCHEMATIC DIAGRAM – SW SECTION – 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3...

  • Page 19: 4-11.Explanation Of Ic Terminals

    TCM-900DV 3 7 63 1515 0 4-11. EXPLANATION OF IC TERMINALS IC701 uPD789166GB-552-8ES (SYSTEM CONTROL) Pin No. Pin name Description FF/REW SW Fast foeward/Rewind switch (S702) input VOR IN VOR detect ON/OFF signal input DPC SW DPC position switch (S904) input...
  • Page 20 TCM-900DV 3 7 63 1515 0 • IC BLOCK DIAGRAMS IC101 NJM2128M-TE2 IC201 BA6640F-E2 PRE -IN PRE +IN – PRE OUT S GND RIPPLE POWER FILTER POWER POWER AMP A +IN A OUT A MUTE POWER – -IN A...

  • Page 21: Q Q

    TCM-900DV 3 7 63 1515 0 IC601 LB1979VL-TLM OSCILLATOR POWER SUPPLY CURRENT DETECT CIRCUIT BIAS – SPEED REFERENCE DETECT VOLTAGE REFERENCE VOLTAGE FOR SPEED CONTROL OUTPUT WAVEFORM DETECT MOTIVE POWER DRIVER DETECT CURRENT/MOTIVE LOGIC SOFT IC901 BU9735K-E2 L 13942296513...

  • Page 22: Exploded Views

    TCM-900DV SECTION 5 EXPLODED VIEWS 3 7 63 1515 0 NOTE : • -XX, -X mean standardized parts, so they • Hardware (# mark) list and accessories and may have some difference from the original packing materials are given in the last of this The components identified by mark 0 one.

  • Page 23: Cassette Lid Section

    TCM-900DV 3 7 63 1515 0 5-2. CASSETTE LID SECTION LCD901 MIC901 SP901 69 68 L 13942296513 not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-375-114-71 SCREW 3-034-792-01 SCREW, TAPPING (B2.0) * 52...

  • Page 24: Mechanism Deck Section-1(Mt-900-175)

    TCM-900DV 3 7 63 1515 0 5-3. MECHANISM DECK SECTION-1(MT-900-175) A (Included in No.151) HRPE901 M601 L 13942296513 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-704-197-01 SCREW (M1.4), SPECIAL HEAD 3-042-480-01 SCREW (M1.4) 3-225-429-01 BELT (AR)

  • Page 25: Mechanism Deck Section-2 (Mt-900-175)

    TCM-900DV 3 7 63 1515 0 5-4. MECHANISM DECK SECTION-2 (MT-900-175) L 13942296513 (Including Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3379-878-1 CHASSIS ASSY 3-229-064-01 WASHER, STOPPER 3-225-385-01 GEAR (B) 3-225-393-01 LEVER (SHUT/OFF) 3-229-063-01 SPRING (UD) (R)

  • Page 26: Electrical Parts List

    TCM-900DV SECTION 6 MAIN ELECTRICAL PARTS LIST 3 7 63 1515 0 NOTE : • Due to standardization, replacements in the • SEMICONDUCTORS In each case, u : µ , for example : The components identified by mark 0...
  • Page 27 TCM-900DV MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C410 1-113-619-11 CERAMIC CHIP 0.47uF D402 8-719-073-01 DIODE MA111-(K8).S0 C411 1-164-940-11 CERAMIC CHIP 0.0033uF 10% D701 8-719-977-03 DIODE DTZ5.6B C412 1-107-820-11 CERAMIC CHIP 0.1uF...
  • Page 28 TCM-900DV MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q108 8-729-037-58 TRANSISTOR UN9110J-(TX).SO R120 1-218-959-11 RES-CHIP 3.3K 1/16W Q109 8-729-037-78 TRANSISTOR UN9217J-(TX).SO Q110 8-729-047-68 TRANSISTOR SSM3K03FE(TPL3) R121 1-218-965-11 RES-CHIP...
  • Page 29 TCM-900DV MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R408 1-218-963-11 RES-CHIP 6.8K 1/16W R706 1-208-927-11 METAL CHIP 0.5% 1/16W R409 1-218-989-11 RES-CHIP 1/16W R707 1-218-985-11 METAL CHIP 470K 0.5%...
  • Page 30 TCM-900DV 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark M601 1-763-654-11 MOTOR, DC (CAPSTAN/REEL) C906 1-107-820-11 CERAMIC CHIP 0.1uF (INCLUDING PULLEY) C907 1-107-820-11 CERAMIC CHIP 0.1uF LCD901 1-804-306-11 DISPLAY PANEL, LIQUID CRYSTAL...
  • Page 31 TCM-900DV 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 32 TCM-900DV 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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