Sony DCR-TRV738E Service Manual
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Sony DCR-TRV738E Service Manual

Sony DCR-TRV738E Service Manual

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SERVICE MANUAL
Ver 1.0 2002. 03
Revision History
Revision History
M2000 MECHANISM
Link
Link
SPECIFICATIONS
SPECIFICATIONS
SERVICE NOTE
SERVICE NOTE
DISASSEMBLY
DISASSEMBLY
• For INSTRUCTION MANUAL, refer to separate file (992993871.pdf).
• For MECHANISM ADJUSTMENTS, refer to the "8mm Video MECHANICAL ADJUSTMENT MANUAL IX
M2000 MECHANISM " (9-929-861-11).
• The DCR-TRV740E uses two types of 2.5 inch LCD. For identification of the 2.5 inch LCD, see "SECTION 5.
1-5-1. LCD Type Check".
• The DCR-TRV840 uses two types of the type SO or type CA LCD. For identification of the type SO or type CA
LCD, see "SECTION 5. 1-5-1. LCD Type Check".
On the VC-278 board
This service manual provides the information that is premised the circuit board replacement service and not intended repair
inside the VC-278 board.
Therefore, schematic diagram, printed wiring board, waveforms, mounted parts location and electrical parts list of the VC-278
board are not shown.
The following pages are not shown.
Schematic diagram ............................. Pages 4-23 to 4-72
Printed wiring board ............................ Pages 4-87 to 4-90
Waveforms ........................................... Pages 4-93 to 4-95
DCR-TRV738E/TRV740/
Photo : DCR-TRV740E
BLOCK DIAGRAMS
BLOCK DIAGRAMS
FRAME SCHEMATIC DIAGRAMS
FRAME SCHEMATIC DIAGRAMS
SCHEMATIC DIAGRAMS
SCHEMATIC DIAGRAMS
Mounted parts location ............................. Pages 4-97 to 4-98
Electrical parts list ................................... Pages 6-17 to 6-25
DIGITAL VIDEO CAMERA RECORDER
TRV740E/TRV840
Canadian Model
Australian Model
Hong Kong Model
Chinese Model
East European Model
North European Model
Russian Model
DCR-TRV740/TRV740E/TRV840
Tourist Model
Argentina Model
PRINTED WIRING BOARDS
PRINTED WIRING BOARDS
ADJUSTMENTS
ADJUSTMENTS
REPAIR PARTS LIST
REPAIR PARTS LIST
RMT-814
2
LEVEL
US Model
DCR-TRV740/TRV840
AEP Model
DCR-TRV738E/TRV740E
DCR-TRV740E
E Model
Korea Model
DCR-TRV740
DCR-TRV740/TRV740E
DCR-TRV840

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Summary of Contents for Sony DCR-TRV738E

  • Page 1 DCR-TRV738E/TRV740/ TRV740E/TRV840 RMT-814 SERVICE MANUAL LEVEL US Model Canadian Model Ver 1.0 2002. 03 DCR-TRV740/TRV840 AEP Model Revision History Revision History DCR-TRV738E/TRV740E Australian Model Hong Kong Model Chinese Model East European Model North European Model Russian Model DCR-TRV740E E Model...

  • Page 2: Specifications

    LANC jack 3.8 mm (1/4.7 type) CCD (DCR-TRV740/TRV840), 90min. Stereo mini-minijack (ø 2.5 mm) (Charge Coupled Device) Hi8 cassette (DCR-TRV738E/TRV740E), MIC jack Gross: Approx. 1 070 000 pixels lens cap and shoulder strap Stereo minijack (ø 3.5 mm) Effective: Approx. 690 000 pixels...
  • Page 3 CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU PUBLISHED BY SONY.
  • Page 4 DCR-TRV738E/TRV740/TRV740E/TRV840 • SUPPLIED ACCESSORIES Make sure that the following accessories are supplied with your camcorder. 1 Wireless Remote Commander (1) 9 “Memory Stick” (1) 2 AC-L10A/L10B/L10C AC power 0 CD-ROM (USB Driver) (1) adaptor (1), Power cord (1) SPVD (I) : US, CND models...
  • Page 5 DCR-TRV738E/TRV740/TRV740E/TRV840 TABLE OF CONTENTS SERVICE NOTE • CONTROL SWITCH BLOCK (CF-2500) SCHEMATIC DIAGRAM ···························· 4-11 1-1. SERVICE NOTE ····························································· 1-1 • PD-156 (1/2)(LCD DRIVER, BACKLIGHT) POWER SUPPLY DURING REPAIRS ·························· 1-1 SCHEMATIC DIAGRAM ···························· 4-13 TO TAKE OUT A CASSETTE WHEN NOT EJECT •...
  • Page 6 DCR-TRV738E/TRV740/TRV740E/TRV840 Subjects ··········································································· 5-7 2-1. Hi8/STANDARD 8 MODE ··········································· 5-40 1-2. INITIALIZATION OF 8, A, B, C, D, E, F, 1B, 1C, 1E, 1F 2-1-1. OPERATING WITHOUT CASSETTE ························ 5-40 PAGE DATA ···································································· 5-8 2-1-2. TAPE PATH ADJUSTMENT ········································ 5-40 1-2-1.
  • Page 7 DCR-TRV738E/TRV740/TRV740E/TRV840 Setting the Test Mode ···················································· 5-62 Emergence Memory Address ········································ 5-62 2-1. EMG Code (Emergency Code) ····································· 5-62 2-2. MSW Code ···································································· 5-63 Bit Value Discrimination ··············································· 5-64 Switch check (1) ···························································· 5-64 Switch check (2) ···························································· 5-64 Switch check (3) ···························································· 5-65 Switch check (4) ····························································...

  • Page 8: Power Supply During Repairs

    DCR-TRV738E/TRV740/TRV740E/TRV840 SECTION 1 COVER COVER SERVICE NOTE 1-1. SERVICE NOTE POWER SUPPLY DURING REPAIRS In this unit, about 10 seconds after power is supplied (8.4V) to the battery terminal using the service power code (J-6082-223-A), the power is shut off so that the unit cannot operate.

  • Page 9: Self-Diagnosis Function

    DCR-TRV738E/TRV740/TRV740E/TRV840 1-2. SELF-DIAGNOSIS FUNCTION Self-diagnosis Function Self-diagnosis Display When problems occur while the unit is operating, the self-diagnosis When problems occur while the unit is operating, the counter of the function starts working, and displays on the viewfinder or Display viewfinder or Display window shows a 4-digit display consisting window what to do.

  • Page 10: Self-Diagnosis Code Table

    DCR-TRV738E/TRV740/TRV740E/TRV840 Self-diagnosis Code Table Self-diagnosis Code Block Detailed Symptom/State Correction Function Code Non-standard battery is used. Use the InfoLITHIUM battery. Condensation. Remove the cassette, and insert it again after one hour. Video head is dirty. Clean with the optional cleaning cassette.
  • Page 11 DCR-TRV738E/TRV740/TRV740E/TRV840 Self-diagnosis Code Block Detailed Symptom/State Correction Function Code Inspect the lens block focus reset sensor (Pin qs of CN1551 of Difficult to adjust focus VC-278 board) when focusing is performed when the focus ring is (Cannot initialize focus.) rotated in the focus manual mode and the focus motor drive circuit (IC1555 of VC-278 board) when the focusing is not performed.
  • Page 12 DCR-TRV738E/TRV740/TRV740E/TRV840 SECTION 2 COVER COVER DISASSEMBLY The following flow chart shows the disassembly procedure. 2-1. 2.5 inch LCD unit, PD-156/160 board -1 2-2. 2.5 inch LCD unit, PD-156/160 board -2 PD-156/160 board service position 2-3. 3.5 inch LCD unit, PD-156/160 board -1 2-4.
  • Page 13 DCR-TRV738E/TRV740/TRV740E/TRV840 [CONNECTION OF EQUIPMENTS] CN1108 Adjustment remote CPC-13 jig commander (RM-95) (J-6082-443-A) CPC lid (BT) MI screw (M2 × 4) (H) AC power AC IN adaptor NOTE: Follow the disassembly procedure in the numerical order given. 2-1. 2.5 INCH LCD UNIT, PD-156/160 BOARD -1...
  • Page 14 DCR-TRV738E/TRV740/TRV740E/TRV840 2-2. 2.5 INCH LCD UNIT, PD-156/160 BOARD -2 NOTE: PD-156 board : TRV738E/TRV740E (AEP,EE,NE,RU) PD-160 board : TRV740/TRV740E (E,HK,AUS,CH,JE) Refer to page 5-32 for 1-5-1. “LCD Type Check” of this manual for the detail. Two tapping screws (B1.7 × 6) P screw (M1.7 ×...
  • Page 15 DCR-TRV738E/TRV740/TRV740E/TRV840 2-3. 3.5 INCH LCD UNIT, PD-156/160 BOARD -1 NOTE: 3.5 inch LCD model is TRV840 only. Refer to page 5-32 for 1-5-1. “LCD Type Check” of this manual for the detail. Four tapping screws (M1.7 × 5) LCD block assembly,...

  • Page 16: Back Light

    DCR-TRV738E/TRV740/TRV740E/TRV840 [PD-156/160 BOARD SERVICE POSITION] LANC jack Adjustment remote commander (RM-95) Indication LCD block assembly CN5502 DC IN AC POWER AC IN PD-156/160 ADAPTOR board Multi CPC jig (J-6082-311-A) Liquid crystal indicator module Back light (Cold cathode fluorescent tube) 2-5. BACK LIGHT Remove the indication LCD block assembly in the direction of the arrow B .

  • Page 17: Front Panel Section

    DCR-TRV738E/TRV740/TRV740E/TRV840 2-6. FRONT PANEL SECTION Claw Caution Remove it while taking care as the FP-406 flexible cable is connected. When removing Front panel section, do not press down the drum of mechanism deck. The drum of mechanism deck. screws (M2 × 4) (H)
  • Page 18 DCR-TRV738E/TRV740/TRV740E/TRV840 [SI-032 BOARD SERVICE POSITION] AC POWER AC IN ADAPTOR DC IN FP-411 flexible board FP-406 flexible board (30P) SI-032 board 2-8. MICROPHONE 8 Front panel assembly (24) 7 Microphone Cushion (F) 6 Microphone 5 Microphone holder 3 Two claws...
  • Page 19 DCR-TRV738E/TRV740/TRV740E/TRV840 2-9. CABINET (R) SECTION screws Three claws 1 MI screw (M2 × 4) (H) (M2 × 4) (H) Three screws (M2 × 4) (H) 3 Cabinet (upper) Three screws (M2 × 4) (H) Claw 9 MI screw Claw (M2 × 4) (H)

  • Page 20: Lens Section

    DCR-TRV738E/TRV740/TRV740E/TRV840 2-10.LENS SECTION 2 FP-317 flexible board (24P) Two screws (M1.7 × 2.5), p 4 Lens section 3 Iris (IR740) (24P) 2-11.CD-358 BOARD Two tapping screws (B1.7 × 6) 1 FP-317 flexible board (24P) CD-358 board CCD block assembly 5 Remove the solderings...

  • Page 21: Iris Flexible Assembly

    DCR-TRV738E/TRV740/TRV740E/TRV840 [CD-358 BOARD SERVICE POSITION] CD-358 board DC IN AC POWER AC IN ADAPTOR Adjustment remote commander (RM-95) Control switch block (CF-2500) (22P) LANC jack FP-411 flexible board Harness (PD-117) (20P) SI-032 board FP-406 flexible board (30P) Cabinet (R) block section 2-12.IRIS FLEXIBLE ASSEMBLY...

  • Page 22: Evf Section

    DCR-TRV738E/TRV740/TRV740E/TRV840 2-13.EVF SECTION EVF section Caution Routing of the flexible board of the Operation FP-407 flexible board 2 MI screw when attaching the EVF section. (M2 × 4) (H) Three screws (M1.7 × 2.5), p 1 FP-407 flexible board (20P) 2-14.LB-076 BOARD -1...
  • Page 23 DCR-TRV738E/TRV740/TRV740E/TRV840 2-15.LB-076 BOARD -2 1 Two claws 4 LCD (LCX032AP-5) (16P) 2 Two claws 9 VF lens (B) assembly 8 LCD (LCX032AP-5) 5 LB-076 board 7 Prism sheet 6 Illuminator 3 Lamp guide [LB-076 BOARD SERVICE POSITION] CPC-13 jig (J-6082-443-A)

  • Page 24: Battery Panel Section

    DCR-TRV738E/TRV740/TRV740E/TRV840 2-16.BATTERY PANEL SECTION screws (M2 × 4) (H) 5 MI screw (M2 × 4) (H) Tapping screw (M1.7 × 5) 9 Battery panel section Tape (A) FP-409 flexible board (10P) Battery terminal 2 Ferrite bead board (6P) 2-17.BATTERY TERMINAL BOARD...

  • Page 25: Memory Stick 10P Connector

    DCR-TRV738E/TRV740/TRV740E/TRV840 2-18.MEMORY STICK 10P CONNECTOR 8 Memory stick 10p connector 7 MS holder Two screws (M1.7 × 2.5), p 5 FP-409 flexible board (10P) 4 MS section Screw (M1.7 × 2.5), p Two screws (M1.7 × 2.5), p 2-19.CONTROL SWITCH BLOCK (SS-1380)
  • Page 26 DCR-TRV738E/TRV740/TRV740E/TRV840 2-20.CABINET (L) SECTION Screw PRECAUTION DURING (M1.7 × 2.5), p CABINET (L) SECTION INSTALLATION Screw (M1.7 × 2.5), p Cabinet (L) section Claw External (hot shoe) connector, Shoe frame Four FP-264 flexible dowels board (15P) Screw (M1.7 × 2.5), p...

  • Page 27: Vc-278 Board

    DCR-TRV738E/TRV740/TRV740E/TRV840 2-22.VC-278 BOARD Caution 8 SHEET (25) 2, M Attach the Sheet (25) 2, M so that Sheet (25) 2, M does not overlap with Capacitor and Vibrator, when attach the Sheet (25) 2, M to the VC-278 board. VIBRATOR...
  • Page 28 DCR-TRV738E/TRV740/TRV740E/TRV840 [SERVICE POSITION TO CHECK THE VTR SECTION] Cnnection to Check the VTR Section To check the VTR section, set the VTR to the “Forced VTR power ON” mode. Operate the VTR functions using the adjustment remote commander (with the HOLD switch set in the OFF position).
  • Page 29 DCR-TRV738E/TRV740/TRV740E/TRV840 [SERVICE POSITION TO CHECK THE CAMERA SECTION] Connection to Check the Camera Section To check the camera section, set the camera to the “Forced camera power ON” mode. When you want to operate to focus, use the controls on the remote commander (with the HOLD switch off).

  • Page 30: Control Switch Block (Fk)

    DCR-TRV738E/TRV740/TRV740E/TRV840 2-24.CONTROL SWITCH BLOCK (CF-2500) Control switch block (FK-2500) (5P) Control switch block (CF-2500) 1 MI screw (M2 × 4) (H) Harness (PD-117) 6 Five tapping screws (6P) (B2 × 5) Caution 6 Three tapping screws (B2 × 5) Routing of the harness (PD-117) .

  • Page 31: Hinge Section

    DCR-TRV738E/TRV740/TRV740E/TRV840 2-26.HINGE SECTION REMOVING THE HINGE ASSEMBLY Harness (PD-117) (6, 20P) Caution Remove the Harness (PD-117) in the direction of the arrow 2 FP-412 flexible board (6P) Then bend the harness so that it is laid along with the connector.

  • Page 32: Circuit Boards Location

    DCR-TRV738E/TRV740/TRV740E/TRV840 2-27.CIRCUIT BOARDS LOCATION LB-076 CD-358 SI-032 VC-278 PD-156 (TRV738E/TRV740E:AEP,EE,NE,RU/ TRV840) PD-160 (TRV740/TRV740E:E,HK,AUS,CH,JE/ TRV840) NAME FUNCTION CD-358 CCD IMAGER LB-076 EVF BACK LIGHT PD-156/160 CHA, DISPLAY DRIVE, BACK LIGHT/LCD DRIVE, TG SI-032 STEADY SHOT, LASER LINK CAMERA, VIDEO, DV INTERFACE, CAMERA/MECHA/HI CONTROL, AUDIO,...

  • Page 33: Flexible Boards Location

    DCR-TRV738E/TRV740/TRV740E/TRV840 2-28.FLEXIBLE BOARDS LOCATION The flexible boards contained in the mechanism deck and that in the lens device are not shown. CONTROL SWITCH BLOCK (FK-2500) FP-407 FP-264 CONTROL SWITCH BLOCK (CF-2500) FP-411 CONTROL SWITCH BLOCK (SS-1380) FP-317 FP-409 FP-412 IRIS FLEXIBLE...

  • Page 34: Block Diagrams

    DCR-TRV738E/TRV740/TRV740E/TRV840 COVER COVER 3. BLOCK DIAGRAMS Link Link OVERALL BLOCK DIAGRAM (1/6) POWER BLOCK DIAGRAM (1/3) OVERALL BLOCK DIAGRAM (1/6) POWER BLOCK DIAGRAM (1/3) OVERALL BLOCK DIAGRAM (2/6) POWER BLOCK DIAGRAM (2/3) OVERALL BLOCK DIAGRAM (2/6) POWER BLOCK DIAGRAM (2/3)
  • Page 35 DCR-TRV738E/TRV740/TRV740E/TRV840 SECTION 3 3. BLOCK DIAGRAMS 3. BLOCK DIAGRAMS COVER COVER BLOCK DIAGRAMS 3-1. OVERALL BLOCK DIAGRAM (1/6) ( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located. CD-358 BOARD...
  • Page 36 DCR-TRV738E/TRV740/TRV740E/TRV840 3. BLOCK DIAGRAMS 3. BLOCK DIAGRAMS COVER COVER ( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located. 3-2. OVERALL BLOCK DIAGRAM (2/6) VC-278 BOARD(2/6) VCK(IC1601) IC1401 (5/25) SPCK...
  • Page 37 DCR-TRV738E/TRV740/TRV740E/TRV840 3. BLOCK DIAGRAMS 3. BLOCK DIAGRAMS COVER COVER 3-3. OVERALL BLOCK DIAGRAM (3/6) ( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located. VC-278 BOARD(3/5) (8/25) AFCK(IC3603) X3301 IC3301 SPCK(IC1401) 24.576MHz...
  • Page 38 DCR-TRV738E/TRV740/TRV740E/TRV840 3. BLOCK DIAGRAMS 3. BLOCK DIAGRAMS COVER COVER ( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located. 3-4. OVERALL BLOCK DIAGRAM (4/6) M2000 MECHA DECK VC-278 BOARD(4/5) (16/25)
  • Page 39 PANEL -15.3V SWITCH XS/S SW CAM -7.5V START/STOP XS/S SW BT901 BLOCK CAM 15V CN4001 Q4003 S001 (DCR-TRV738E ONLY) D 1.5V (SS-1380) XVTR MODE SW VCR PLAYER XVTR MODE SW RP 6.0V Q4002 DC IN XCAM MODE SW CHARGE OFF(CHG)
  • Page 40 (LCD TYPE CA/SH) Note: By measuring the resistor value between Pin 6 of CN5502 on PD-156/160 board and GND, the type of LCD can be discriminated. 2.2kΩ: LCD TYPE SH (2.5 inches, 123k) DCR-TRV738E/TRV740E (*1) R5522 PD-160 BOARD(2/2) 6.8kΩ: LCD TYPE CA (3.5 inches, 123k) DCR-TRV840 HD OUT 22kΩ: LCD TYPE SO (2.5 inches, 61k) DCR-TRV740/TRV740E (*2)
  • Page 41 DCR-TRV738E/TRV740/TRV740E/TRV840 3. BLOCK DIAGRAMS 3. BLOCK DIAGRAMS COVER COVER 3-7. POWER BLOCK DIAGRAM (1/3) ( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located. Q4005,4007,4009,4010 F4005 PRT HEAD UNREG VC-278 BOARD(1/3)
  • Page 42 ( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located. 3-8. POWER BLOCK DIAGRAM (2/3) CONTROL SWITCH BLOCK (SS-1380) VC-278 BOARD(2/3) S001 BATT LI3V POWER (DCR-TRV738E ONLY) VCR PLAYER RV001 CN1109 OFF(CHG) IC5001 D 2.8V ZOOM VR...
  • Page 43 DCR-TRV738E/TRV740/TRV740E/TRV840 3. BLOCK DIAGRAMS 3. BLOCK DIAGRAMS COVER COVER 3-9. POWER BLOCK DIAGRAM (3/3) ( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located. PD-160 PD-156 VC-278 BOARD (3/3) BOARD...
  • Page 44 D4901 NTPB KEY_AD5 (TALLY) RV001 XPHOTO_FREEZE CN203 ZOOM CAP_FG REG_GND RF_MON NTPA D_2.8V S001 (USB) REG_GND ZOOM_VR REG_GND POWER DCR-TRV738E ONLY REG_GND XEJECT_SW REG_GND VCR PLAYER REG_GND OFF(CHG) CN202 REG_GND REG_GND CAMERA NTPA IN/OUT MEMORY NTPB FP-409 FP-406 FLEXIBLE FLEXIBLE...
  • Page 45 DCR-TRV738E/TRV740/TRV740E/TRV840 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS COVER COVER FRAME SCHEMATIC DIAGRAM (2/2) 2.5INCH:DCR-TRV738E/TRV740/TRV740E 3.5INCH:DCR-TRV840 ND901 TYPE SH:TRV738E/TRV740E:AEP,EE,NE,RU BACK LIGHT TYPE CA:TRV840 TYPE SO:DCR-TRV740/TRV740E:E,HK,AUS,CH,JE/TRV840 LCD901 2.5INCH/3.5INCH CONTROL SWITCH BLOCK(CF-2500) Note : LCD901 type check is refer to page 5-32 for “1-5-1. LCD Type Check”...
  • Page 46 DCR-TRV738E/TRV740/TRV740E/TRV840 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS COVER COVER THIS NOTE IS COMMON FOR WIRING BOARDS AND SCHEMATIC DIAGRAMS...

  • Page 47: Schematic Diagrams

    DCR-TRV738E/TRV740/TRV740E/TRV840 COVER COVER 4-2. SCHEMATIC DIAGRAMS Link Link CD-358 BOARD CD-358 BOARD (CCD IMAGER) (CCD IMAGER) LB-076 BOARD LB-076 BOARD (EVF, BACK LIGHT) (EVF, BACK LIGHT) SI-032 BOARD SI-032 BOARD (STEADY SHOT, LASER LINK) (STEADY SHOT, LASER LINK) CONTROL SWITCH BLOCK...
  • Page 48 DCR-TRV738E/TRV740/TRV740E/TRV840 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS CD-358 BOARD CD-358 BOARD LB-076 BOARD LB-076 BOARD COVER COVER For Schematic Diagram 4-2. SCHEMATIC DIAGRAMS • Refer to page 4-73 for printed wiring board. • Refer to page 4-91 for waveforms. LB-076 BOARD...
  • Page 49 DCR-TRV738E/TRV740/TRV740E/TRV840 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS SI-032 PRINTED WIRING BOARD SI-032 PRINTED WIRING BOARD COVER COVER For Schematic Diagram • Refer to page 4-75 for printed wiring board. SI-032 BOARD STEADY SHOT,LASER LINK NO MARK:REC/PB MODE FP-411 FLEXIBLE CN301...
  • Page 50 DCR-TRV738E/TRV740/TRV740E/TRV840 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS COVER COVER CONTROL SWITCH BLOCK(CF-2500) XX MARK:NO MOUNT S023 RESET CN002 REG_GND XHI_RESET KEY_AD4 BT001 D_2.8V (LITHIUM BATTERY) S007 BATT_LI_3V KEY_AD3 SEL/PUSH EXEC KEY_AD0 KEY_AD2 REG_GND D_2.8V...
  • Page 51 DCR-TRV738E/TRV740/TRV740E/TRV840 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS PD-156 BOARD SIDE A PD-156 BOARD SIDE A PD-156 BOARD SIDE B PD-156 BOARD SIDE B COVER COVER For Schematic Diagram • Refer to page 4-79 for printed wiring board. • Refer to page 4-91 for waveforms.
  • Page 52 XVC_SCK XVC_SCK XCS_PANEL XCS_PANEL R5528 R5541 R5526 R5514 CN5501 R5530 C5524 Q5503 Q5501 C5508 Q5502 2.5INCH LCD MODEL :DCR-TRV738E/TRV740E: AEP,EE,NE,RU 13.8 SWITCH 3.5INCH LCD MODEL :DCR-TRV840 LCD ON REG C5531 TG24 C5530 HCNT/SPD TG23 C5532 RB5503 R5532 SWCOM MCLK/CLD TG22...
  • Page 53 DCR-TRV738E/TRV740/TRV740E/TRV840 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS PD-160 BOARD SIDE A PD-160 BOARD SIDE A PD-160 BOARD SIDE B PD-160 BOARD SIDE B COVER COVER For Schematic Diagram • Refer to page 4-83 for printed wiring board. • Refer to page 4-92 for waveforms.
  • Page 54 DCR-TRV738E/TRV740/TRV740E/TRV840 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS PD-160 BOARD SIDE A PD-160 BOARD SIDE A PD-160 BOARD SIDE B PD-160 BOARD SIDE B COVER COVER For Schematic Diagram • Refer to page 4-83 for printed wiring board. • Refer to page 4-92 for waveforms.
  • Page 55 HW 1 S002 XS/S_SW VC-278 BOARD(25/25) START/STOP CN1109 HW 2 OFF(CHG) REG_GND (PAGE 4-71 KEY_AD5 of LEVEL 3) PLAYER XPHOTO_FREEZE (DCR-TRV738E ONLY) REG_GND D_2.8V ZOOM_VR XEJECT_SW S003 S004 (PHOTO FREEZE) PHOTO OPEN/EJECT R001 LND001 Schematic diagram of the VC-278 board RV001...

  • Page 56: Printed Wiring Boards

    DCR-TRV738E/TRV740/TRV740E/TRV840 COVER COVER 4-3. PRINTED WIRING BOARDS Link Link CD-358 BOARD PD-156 BOARD (SIDE B) CD-358 BOARD PD-156 BOARD (SIDE B) LB-076 BOARD PD-160 BOARD (SIDE A) LB-076 BOARD PD-160 BOARD (SIDE A) SI-032 BOARD PD-160 BOARD (SIDE B) SI-032 BOARD...
  • Page 57 DCR-TRV738E/TRV740/TRV740E/TRV840 MOUNTED PARTS LOCATION 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS MOUNTED PARTS LOCATION COVER COVER 4-3. PRINTED WIRING BOARDS • : Uses unleaded solder. LB-076 (EVF, BACK LIGHT) PRINTED WIRING BOARD •...

  • Page 58: Fp-411 Flexible

    DCR-TRV738E/TRV740/TRV740E/TRV840 MOUNTED PARTS LOCATION 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS MOUNTED PARTS LOCATION COVER COVER SI-032 (STEADY SHOT, LASER LINK) PRINTED WIRING BOARD FP-411 FLEXIBLE BOARD • : Uses unleaded solder. FP-411 FLEXIBLE...
  • Page 59 DCR-TRV738E/TRV740/TRV740E/TRV840 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS COVER COVER LS-057 (S/T REEL SENSOR), FP-228 (DEW SENSOR), FP-299 (MODE SWITCH), FP-300 (TAPE TOP), FP-410 FLEXIBLE BOARD FP-302 (TAPE END), FP-301 (TAPE LED) FLEXIBLE BOARDS...
  • Page 60 DCR-TRV738E/TRV740/TRV740E/TRV840 MOUNTED PARTS LOCATION 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS MOUNTED PARTS LOCATION COVER COVER PD-156 (LCD DRIVER, BACKLIGHT, DRIVER, TIMING GENERATOR) PRINTED WIRING BOARD • : Uses unleaded solder. (TYPE CA and SH MODEL)
  • Page 61 DCR-TRV738E/TRV740/TRV740E/TRV840 MOUNTED PARTS LOCATION 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS MOUNTED PARTS LOCATION COVER COVER • : Uses unleaded solder. TYPE SH :TRV738E/TRV740E:AEP,EE,NE,RU (TYPE CA and SH MODEL) TYPE CA :TRV840 PD-156...
  • Page 62 DCR-TRV738E/TRV740/TRV740E/TRV840 MOUNTED PARTS LOCATION 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS MOUNTED PARTS LOCATION COVER COVER PD-160 (CHA, DISPLAY DRIVE, BACK LIGHT, LCD DRIVE, TG) PRINTED WIRING BOARD • : Uses unleaded solder.
  • Page 63 DCR-TRV738E/TRV740/TRV740E/TRV840 MOUNTED PARTS LOCATION 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS MOUNTED PARTS LOCATION COVER COVER FP-412 FLEXIBLE BOARD • : Uses unleaded solder. TYPE SO :DCR-TRV740/TRV740E:E,HK,AUS,CH,JE/TRV840 FP-412 FLEXIBLE (TYPE SO MODEL) S601 (PANEL REVERSE) Printed wiring board of the VC-278 board are not shown.
  • Page 64 DCR-TRV738E/TRV740/TRV740E/TRV840 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS COVER COVER 4-4. WAVEFORMS CD-358 PD-156 PD-160 BOARD CAMERA REC BOARD BOARD IC551 1,4 IC5501 w; IC5502 1 IC5501 wf LCD IC5502 1 LCD 8.2Vp-p 2.8Vp-p...
  • Page 65 Waveforms of the VC-278 board are not shown. Pages from 4-93 to 4-95 are not shown.

  • Page 66: Mounted Parts Location

    DCR-TRV738E/TRV740/TRV740E/TRV840 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS COVER COVER 4-5. MOUNTED PARTS LOCATION no mark : side A * mark : side B CD-358 BOARD SI-032 BOARD PD-156 BOARD PD-160 BOARD C305 C5501 L5601 C5501 Q5501 B-4 * C551...
  • Page 67 DCR-TRV738E/TRV740/TRV740E/TRV840 SECTION 5 COVER COVER ADJUSTMENTS...

  • Page 68: Adjusting Items When Replacing Main Parts And Boards

    DCR-TRV738E/TRV740/TRV740E/TRV840 Adjusting items when replacing main parts and boards. When replacing main parts, adjust the items indicated by z in the following table. Replaced parts Block replacement Parts replacement Adjustment Adjustment Section Initialization of Initialization of A, D page data...
  • Page 69 DCR-TRV738E/TRV740/TRV740E/TRV840 *1: When replacing the drum assy. or mechanism Board EEPROM deck, reset the data of page: 7, address: A7 to replacement replacement A9 to “00”. (Refer to “Record of Use check” of “5-4. SERVICE MODE”) *2: LCD TYPE CA/SH (PD-156 board)

  • Page 70: Camera Section Adjustment

    DCR-TRV738E/TRV740/TRV740E/TRV840 5-1. CAMERA SECTION ADJUSTMENT 1-1. PREPARATIONS BEFORE ADJUSTMENT (CAMERA SECTION) 1-1-1. List of Service Tools • Oscilloscope • Color monitor • Vectorscope • Regulated power supply • Digital voltmeter Ref. No. Name Parts Code Usage Auto white balance adjustment/check...
  • Page 71 DCR-TRV738E/TRV740/TRV740E/TRV840 1-1-2. Preparations Note1: For details of how remove the cabinet and boards, refer to “2. DISASSEMBLY”. Pattern box Note2: When performing only the adjustments, the lens block and boards need not be disassembled. Note3: Before performing the adjustments, check the data of page: 0, address: 10 is “00”.
  • Page 72 DCR-TRV738E/TRV740/TRV740E/TRV840 Terminated at 75 Ω Adjustment remote commander Vector scope Color monitor AUDIO R AUDIO L Need not be connected. VIDEO (Red) (White) (Yellow) EVF block Memory stick Must be connected when slot performing the EVF system adjustments. Front panel...
  • Page 73 DCR-TRV738E/TRV740/TRV740E/TRV840 1-1-3. Precaution 1. Setting the Switch Unless otherwise specified, set the switches as follows and perform adjustments without loading cassette. POWER switch (SS-1380 block) ......CAMERA FOCUS switch (CF-2500 block) ......MANUAL NIGHT SHOT switch (Lens block) ......... OFF 10.
  • Page 74 DCR-TRV738E/TRV740/TRV740E/TRV840 1-2. INITIALIZATION OF 8, A, B, C, D, E, F, 1B, 1C, [Initialization Procedure] Initialization of A, D page data 1E, 1F PAGE DATA Initialization of B, 1B page data Note: When reading or writing the 1B, 1C, 1D, 1E or 1F page data, select...
  • Page 75 Note4: NTSC model: DCR-TRV740/TRV840 1) The self-diagnosis code “E:20:00” on the LCD screen is displayed. PAL model: DCR-TRV738E/TRV740E 2) The power is shut off so that unit cannot operate. Adjusting page 3. A Page Table Note1: The data of page: 0, address: 10 must be “00”.
  • Page 76 DCR-TRV738E/TRV740/TRV740E/TRV840 4. D Page Table Note1: The data of page: 0, address: 10 must be “00”. Note2: Fixed data-1: Initialized data. (Refer to “1. Initializing the A, D Page Data”.) Fixed data-2: Modified data. (Refer to “2. Modification of A, D Page Data”.)
  • Page 77 DCR-TRV738E/TRV740/TRV740E/TRV840 1-2-2. INITIALIZATION OF B, 1B PAGE DATA Processing after Completing Modification of B, 1B Page data: Order Page Address Data Procedure Note: When reading or writing the B page data, select page: 0, address: Set the data. 10, and set data: 00.
  • Page 78 DCR-TRV738E/TRV740/TRV740E/TRV840 1-2-3. INITIALIZATION OF 8, C, 1C PAGE DATA 2. Modification of 8, C, 1C Page Data Note: When reading or writing the 8, C page data, select page: 0, address: If the 8, C, 1C page data has been initialized, change the data of the 10, and set data: 00.
  • Page 79 DCR-TRV738E/TRV740/TRV740E/TRV840 3. 8 Page Table 4. C Page Table Note1: The data of page: 0, address: 10 must be “00”. Note1: The data of page: 0, address: 10 must be “00”. Note2: Fixed data-1: Initialized data. (Refer to “1. Initializing the 8, C, Note2: Fixed data-1: Initialized data.
  • Page 80 Contrast adj. (LCD) C: NTSC 3.5 LCD TYPE SO (DCR-TRV840) 40/1E *2 D: PAL 2.5 LCD TYPE SH 37/00/2D/ Fixed data *3 (DCR-TRV738E/TRV740E (AEP/EE/NE/RU)) 00/37 *2 Center level adj. (LCD)*4 E: PAL 2.5 LCD TYPE SO 0C/50/0F/ Fixed data (DCR-TRV740E (E/AUS/HK/CN/JE))
  • Page 81 DCR-TRV738E/TRV740/TRV740E/TRV840 5. 1C Page Table Address Remark Note1: When reading or writing the 1C page data, select page: 0, address: 10, and set data: 01, then select C page. The 1C page can be chosen Fixed data-2 by this data setting.
  • Page 82 Note: If copy the data built in the different model, the camcorder may Note4: NTSC model: DCR-TRV840 not operate. PAL model: DCR-TRV738E/TRV740E 5) When changing the data, press the PAUSE button of the adjustment remote commander each time when setting new Adjusting page data to write the data in the non-volatile memory.
  • Page 83 DCR-TRV738E/TRV740/TRV740E/TRV840 3. E Page Table Address Remark Note1: The data of page: 0, address: 10 must be “00”. Note2: Fixed data-1: Initialized data. (Refer to “1. Initializing the E, F, Fixed data-2 1E, 1F Page Data”.) Fixed data-2: Modified data. (Refer to “2. Modification of E, F, (Modified data.
  • Page 84 DCR-TRV738E/TRV740/TRV740E/TRV840 4. F Page Table Address Remark Note1: The data of page: 0, address: 10 must be “00”. Initial value Note2: Fixed data-1: Initialized data. (Refer to “1. Initializing the E, F, Mechanical shutter adj. 1E, 1F Page Data”.) Fixed data-2: Modified data. (Refer to “2. Modification of E, F, 1E, 1F Page Data”.)
  • Page 85 DCR-TRV738E/TRV740/TRV740E/TRV840 5. 1E Page Table 6. 1F Page Table Note1: When reading or writing the 1E page data, select page: 0, address: Note1: When reading or writing the 1F page data, select page: 0, address: 10, and set data: 01, then select E page. The 1E page can be chosen 10, and set data: 01, then select F page.
  • Page 86 DCR-TRV738E/TRV740/TRV740E/TRV840 1-3. CAMERA SYSTEM ADJUSTMENTS Processing after Completing Adjustments: Before perform the camera system adjustments, check that the Order Page Address Data Procedure specified values of “VIDEO SYSTEM ADJUSTMENTS” are Set the data. satisfied. Set the data. And check that the data of page: 0, address: 10 is “00”. If not, set Set the data.
  • Page 87 DCR-TRV738E/TRV740/TRV740E/TRV840 2. Flange Back Adjustment Adjusting method: (Using Minipattern Box) Order Page Address Data Procedure The inner focus lens flange back adjustment is carried out Set the data. automatically. In whichever case, the focus will be deviated during Set the data, and press PAUSE auto focusing/manual focusing.
  • Page 88 DCR-TRV738E/TRV740/TRV740E/TRV840 3. Flange Back Adjustment 3-2. Flange Back Adjustment (2) (Using Flange Back Adjustment Chart and Subject Perform this adjustment after performing “Flange Back Adjustment More Than 500m Away) (1)”. The inner focus lens flange back adjustment is carried out...
  • Page 89 DCR-TRV738E/TRV740/TRV740E/TRV840 4. Flange Back Check 5. Mechanical Shutter Adjustment Subject Siemens star Adjustment Page (2.0m from the front of the lens) Adjustment Address 76 to 8F (Luminance : approx. 200 lux) Note1: The data of page: 0, address: 10 must be “00”.
  • Page 90 DCR-TRV738E/TRV740/TRV740E/TRV840 6. Black Defective CCD Adjustment 7. Picture Frame Setting Subject Clear chart (All white) (Note1) Subject Color bar chart (Approx. 40cm from the front of the (Color reproduction adjustment frame) lens) (1.5m from the front of the lens) Adjustment Page...
  • Page 91 Note1: The data of page: 0, address: 10 must be “00”. For NTSC model Note2: NTSC model: DCR-TRV740/TRV840 PAL model: DCR-TRV738E/TRV740E Switch setting: POWER ..............CAMERA NIGHT SHOT ..............OFF DIGITAL ZOOM (Menu display) ........OFF STEADY SHOT (Menu display) ........
  • Page 92 DCR-TRV738E/TRV740/TRV740E/TRV840 9. Auto White Balance & LV Standard Data Input Adjust the white balance reference at 3200K, and adjust the normal coefficient of the light value. Subject Clear chart (Color reproduction adjustment frame) Measurement Point Display data of page 1 (Note5)
  • Page 93 DCR-TRV738E/TRV740/TRV740E/TRV840 10. Auto White Balance Adjustment Adjusting method: Adjust to the proper auto white balance output data. Order Page Address Data Procedure If it is not correct, auto white balance and color reproducibility will Place the C14 filter for color be poor.
  • Page 94 DCR-TRV738E/TRV740/TRV740E/TRV840 11. White Balance Check Subject Clear chart (Color reproduction adjustment frame) Filter Filter C14 for color temperature correction ND filter 1.0 and 0.4 and 0.1 Measurement Point Video output terminal Measuring Instrument Vectorscope Specified Value Fig. 5-1-12. A to B Note: The data of page: 0, address: 10 must be “00”.
  • Page 95 DCR-TRV738E/TRV740/TRV740E/TRV840 12. Steady Shot Check Precautions on the Parts Replacement There are two types of repair parts. Type A: ENC03JA Type B: ENC03JB Replace the broken sensor with a same type sensor. If replace with other type parts, the image will vibrate up and down or left and right during hand-shake correction operations.
  • Page 96 Note3: Switch setting: Measuring Instrument Frequency counter LCD panel ................Close Adjustment Page Note4: NTSC model: DCR-TRV740/TRV840 PAL model: DCR-TRV738E/TRV740E Adjustment Address 51, 52 Specified Value f = 15734 ± 30Hz (NTSC) [Adjusting connector] f = 15625 ± 30Hz (PAL) Most of the measuring points for adjusting the viewfinder system are concentrated in CN1108 of VC-278 board.
  • Page 97 DCR-TRV738E/TRV740/TRV740E/TRV840 2. RGB AMP Adjustment (VC-278 board) 3. Contrast Adjustment (VC-278 board) Set the D range of the RGB driver used to drive the LCD to the Set the level of the VIDEO signal for driving the LCD to the specified value.
  • Page 98 DCR-TRV738E/TRV740/TRV740E/TRV840 1-5. LCD SYSTEM ADJUSTMENT 1-5-1. LCD Type Check By measuring the resistor value between Pin 6 of CN5502 and GND, the type of LCD can be discriminated. Note1: The back light (fluorescent tube) is driven by a high voltage AC power supply.
  • Page 99 NTSC 3.5 LCD TYPE CA: A = 3.22 ± 0.05V Note1: NTSC model: DCR-TRV840 PAL 2.5 LCD TYPE SH: PAL model: DCR-TRV738E/TRV740E A = 3.55 ± 0.05V Note2: Refer to “LCD Type Check” for the discrimination of the LCD type.
  • Page 100 A = 6.16 ± 0.05V A = 3.18 ± 0.05V Note1: NTSC model: DCR-TRV840 PAL 2.5 LCD TYPE SH: PAL model: DCR-TRV738E/TRV740E A = 3.19 ± 0.05V Note2: Refer to “LCD Type Check” for the discrimination of the LCD type.
  • Page 101 DCR-TRV738E/TRV740/TRV740E/TRV840 5. V-COM Adjustment (PD-156 board) 6. White Balance Adjustment (PD-156 board) Set the DC bias of the common electrode drive signal of LCD to the Correct the white balance. specified value. If deviated, the reproduction of the LCD screen may degenerate.
  • Page 102 DCR-TRV738E/TRV740/TRV740E/TRV840 1-5-3. LCD SYSTEM ADJUSTMENT (PD-160 board) 2. PSIG Gray Adjustment (PD-160 board) Set the uniformity improvement signal to an appropriate level. 1. VCO Adjustment (PD-160 board) Mode VTR stop Set the VCO free-run frequency. If deviated, the LCD screen will...
  • Page 103 DCR-TRV738E/TRV740/TRV740E/TRV840 3. RGB AMP Adjustment (PD-160 board) 4. Black Limit Adjustment (PD-160 board) Set the D range of the RGB decoder used to drive the LCD to the Set the dynamic range of the LCD driver to an appropriate level. If specified value.
  • Page 104 DCR-TRV738E/TRV740/TRV740E/TRV840 5. Contrast Adjustment (PD-160 board) 6. Center Level Adjustment (PD-160 board) Set the level of the VIDEO signal for driving the LCD to the specified Set the video signal center level of LCD panel to an appropriate value. If deviated, the screen image will be blackish or saturated level.
  • Page 105 DCR-TRV738E/TRV740/TRV740E/TRV840 7. V-COM Adjustment (PD-160 board) 8. White Balance Adjustment (PD-160 board) Set the DC bias of the common electrode drive signal of LCD to the Correct the white balance. specified value. If deviated, the reproduction of the LCD screen may degenerate.

  • Page 106: Mechanism Section

    DCR-TRV738E/TRV740/TRV740E/TRV840 5-2. MECHANISM SECTION 2-1-2. TAPE PATH ADJUSTMENT ADJUSTMENT 1. Preparations for Adjustment Mechanism Section adjustments, checks, and replacement of 1) Clean the tape path face (tape guide, capstan shaft, pinch roller). mechanism parts, refer to the separate volume “8mm Video 2) Connect the adjustment remote commander to the LANC jack.
  • Page 107 DCR-TRV738E/TRV740/TRV740E/TRV840 2-2. DIGITAL8 MODE 2-2-3. OVERALL TAPE PATH CHECK Note: Before performing the adjustments, check the data of page: 0, address: 10 is “00”. If not, set data: 00 to this address. 1. Recording of the tape path check signal Clean the tape running side (tape guide, capstan shaft, pinch 2-2-1.

  • Page 108: Video Section Adjustment

    DCR-TRV738E/TRV740/TRV740E/TRV840 5-3. VIDEO SECTION ADJUSTMENT 13) PAL Hi8/standard8 alignment tapes (For PAL model) • For tracking adjustment (WR5-1CP) Parts code : 8-967-995-07 3-1. PREPARATIONS BEFORE ADJUSTMENTS • For video frequency characteristics adjustment (WR5-7CE) Parts code : 8-967-995-18 Use the following measuring instruments for video section •...
  • Page 109 DCR-TRV738E/TRV740/TRV740E/TRV840 3-1-2. Precautions on Adjusting Note2: Setting the “Forced VTR Power ON” mode (VTR mode) 1) Select page: 0, address: 01, and set data: 01. Note1: Before performing the adjustments, check the data of page: 0, 2) Select page: D, address: 10, set data: 02, and press the PAUSE address: 10 is “00”.
  • Page 110 DCR-TRV738E/TRV740/TRV740E/TRV840 3-1-3. Adjusting Connectors Some of the adjusting points of the video section are concentrated at VC-278 board CN1108. Connect the measuring instruments via the CPC-13 jig (J-6082-443-A). The following table lists the pin numbers and signal names of CN1108.
  • Page 111 DCR-TRV738E/TRV740/TRV740E/TRV840 3-1-5. Alignment Tape The following table lists alignment tapes which are available. Use the tape specified in the signal column for each adjustment. If the type of tape to be used for checking operations is not specified, use whichever type.
  • Page 112 DCR-TRV738E/TRV740/TRV740E/TRV840 Fig. 5-3-3. Shows the color bar signals recorded on the alignment tape. Note : Measure using the video terminal of AUDIO/VIDEO jack (Terminated at 75 Ω). For NTSC model White (100%) White (75%) Burst signal 0.714V (75%) 0.286V Black 0.286V...
  • Page 113 DCR-TRV738E/TRV740/TRV740E/TRV840 3-2. SYSTEM CONTROL SYSTEM ADJUSTMENT 2-2. Serial No. Input Write the serial No. and model code in the EEPROM (nonvolatile memory). Convert the serial No. on the name plate from decimal to 1. Initialization of 8, A, B, C, D, E, F, 1B, 1C, 1E, 1F Page hexadecimal, and write in the EEPROM.
  • Page 114 DCR-TRV738E/TRV740/TRV740E/TRV840 Hexa- Hexa- Hexa- Hexa- Hexa- Hexa- Hexa- Hexa- Decimal Decimal Decimal Decimal Decimal Decimal Decimal Decimal decimal decimal decimal decimal decimal decimal decimal decimal 0000 8192 2000 16384 4000 24576 6000 32768 8000 40960 A000 49152 C000 57344 E000...
  • Page 115 And check that the data of page: 0, address: 10 is “00”. If not, set Measuring Instrument Adjustment remote commander data: 00 to this address. Adjustment Page Note: NTSC model: DCR-TRV740/TRV840 PAL model: DCR-TRV738E/TRV740E Adjustment Address 1F, 20, 22, 29 Specified Value Data of page: 3, address: 02 is “00”. Adjusting Procedure: Data of page: 3, address: 03 is “00”.
  • Page 116 DCR-TRV738E/TRV740/TRV740E/TRV840 3. Switching Position Adjustment (VC-278 board) 4. AGC Center Level and APC & AEQ Adjustment To obtain normal playback waveform output during the Digital8 Note: The data of page: 0, address: 10 must be “00”. Use a Hi8 MP tape.
  • Page 117 DCR-TRV738E/TRV740/TRV740E/TRV840 4-3. APC & AEQ Adjustment (VC-278 board) 4-4. Processing after Completing Adjustments Order Page Address Data Procedure Mode Playback Signal Recorded signal at “Preparations Set the data. before adjustments” Set the data. Measurement Point Pin qh of CN1108 (RF MON) (Note 1) Set the data.
  • Page 118 DCR-TRV738E/TRV740/TRV740E/TRV840 5. PLL f & LPF f Fine Adjustment (VC-278 board) 6. Hi8/Standard8 Switching Position Adjustment (VC-278 board) If deviated in this case causes switching noise or jitter on the Hi8/ Mode VTR stop Standard8 mode played back screen. Signal...
  • Page 119 DCR-TRV738E/TRV740/TRV740E/TRV840 7. CAP FG Duty Adjustment (VC-278 board) Set the Cap FG signal duty cycle to 50% to establish an appropriate capstan servo. If deviated, the uneven rotation of capstan and noise can occur in the Hi8/Standard8 LP mode. Mode...
  • Page 120 10 is “00”. If not, set data: 00 to this address. Mode VTR stop Note2: NTSC model: DCR-TRV740/TRV840 Signal No signal PAL model: DCR-TRV738E/TRV740E Measurement Point Y signal terminal of S VIDEO jack 1. 54MHz/66MHz Origin Oscillation Adjustment (75Ω terminated) (VC-278 board)
  • Page 121 DCR-TRV738E/TRV740/TRV740E/TRV840 3. S VIDEO OUT Chroma Level Adjustment 4. VIDEO OUT Y, Chroma Level Check (VC-278 board) (VC-278 board) Mode VTR stop Mode VTR stop Signal No signal Signal No signal Measurement Point Chroma signal terminal of S VIDEO Measurement Point Video signal terminal of AUDIO/ jack (75Ω...
  • Page 122 DCR-TRV738E/TRV740/TRV740E/TRV840 5. Hi8/Standard8 Y/C Output Level Setting 6. Hi8/standard 8mm AFC fo Adjustment (VC-278 board) (VC-278 board) Set the Y/C signal output level during the Hi8/Standard8 playback Adjust the pull-in range of the clock generator (IC2201) for A/D mode. conversion during Hi8/standard 8mm playback.
  • Page 123 10 is “00”. If not, set data: 00 to this address. can separate from the playback RF signal properly. If deviated. the Note2: NTSC model: DCR-TRV740/TRV840 mono/stereo mode will be differentiated incorrectly, and noises and PAL model: DCR-TRV738E/TRV740E distortions will increase during high volume playback. Mode Playback...
  • Page 124 DCR-TRV738E/TRV740/TRV740E/TRV840 2. Hi8/Standard8 AFM 1.5 MHz Deviation Adjustment 4. Digital8 Playback Level Check (VC-278 board) Mode Playback Adjust to the optimum 1.5MHz audio FM signal deviation. Signal Digital8 alignment tape: If the adjustment is not correct, its playback level will differ from For audio operation check that of other units.
  • Page 125 DCR-TRV738E/TRV740/TRV740E/TRV840 7. Overall Noise Level Check 8. Overall Separation Check Mode Recording and playback Mode Recording and playback Signal No signal: MIC jack left and right Signal No signal: MIC jack <left> [right] 400Hz, –66dBs signal: MIC jack Measurement Point AUDIO/VIDEO jack left or right <right>...

  • Page 126: Service Mode

    DCR-TRV738E/TRV740/TRV740E/TRV840 5-4. SERVICE MODE 4-1. ADJUSTMENT REMOTE COMMANDER 2. Precautions Upon Using the Adjustment Remote Commander The adjustment remote commander is used for changing the calculation coefficient in signal processing, EVR data, etc. The Mishandling of the adjustment remote commander may erase the adjustment remote commander performs bi-directional correct adjustment data at times.
  • Page 127 DCR-TRV738E/TRV740/TRV740E/TRV840 4-2. DATA PROCESS The calculation of the DDS display and the adjustment remote commander display data (hexadecimal notation) are required for obtaining the adjustment data of some adjustment items. In this case, after converting the hexadecimal notation to decimal notation, calculate and convert the result to hexadecimal notation, and use it as the adjustment data.
  • Page 128 DCR-TRV738E/TRV740/TRV740E/TRV840 4-3. SERVICE MODE 2. Emergence Memory Address Note: Before performing the adjustments, check the data of page : 0, Page C Address F4 to FF address: 10 is “00”. If not, set data: 00 to this address. Address Contents...
  • Page 129 DCR-TRV738E/TRV740/TRV740E/TRV840 2-2. MSW Code • The lower parts of the data of C page, addresses F6, FA and FE represent the MSW codes (mode switch mechanism position) when errors occurs. • The upper parts of the data of C page, addresses F6, FA and FE represent, when the mechanism position is to be moved, the MSW codes at the start movement (when moving the loading motor).
  • Page 130 DCR-TRV738E/TRV740/TRV740E/TRV840 3. Bit Value Discrimination Bit values must be discriminated using the display data of the Display on the Bit values adjustment remote commander for the following items. Us the table adjustment bit3 bit2 bit1 bit0 below to discriminate if the bit value is “1” or “0”.
  • Page 131 DCR-TRV738E/TRV740/TRV740E/TRV840 6. Switch check (3) Page 3 Address 61 Function When bit value = 1 When bit value = 0 HEADPHONS jack (FP-411 flexible J301) Used Not used Using method: Select page: 3, address: 61. By discriminating the bit value of display data, the state of the switch can be discriminated.
  • Page 132 DCR-TRV738E/TRV740/TRV740E/TRV840 9. Record of Use check (2) Page 7 Address A7 to A9 Address Function Remarks Drum rotation counted time Hour (H) 100000 place digit and 10000 place digit (decimal digit) (BCD code) Hour (M) 1000 place digit and 100 place digit (decimal digit)

  • Page 133: Exploded Views

    DCR-TRV738E/TRV740/TRV740E/TRV840 SECTION 6 COVER COVER REPAIR PARTS LIST 6-1. EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • Abbreviation The components identified by mark 0or have some differences from the original one. CND : Canadian model dotted line with mark 0 are critical for safety.
  • Page 134 DCR-TRV738E/TRV740/TRV740E/TRV840 6-1-2. CABINET (L) SECTION-1 EVF section (See page 6-4) Cabinet (L) section-2 (See page 6-3) - 2 7 a r d Mechanism deck (See page 6-8 to 6-11) Lens section (See page 6-4) Ref. No. Part No. Description Ref. No.
  • Page 135 DCR-TRV738E/TRV740/TRV740E/TRV840 6-1-3. CABINET (L) SECTION-2 ns : not supplied BT901 Ref. No. Part No. Description Ref. No. Part No. Description X-3951-159-1 CABINET (L) ASSY 4-974-725-01 SCREW (M1.7X2.5), P 3-052-815-01 BELT (ES), GRIP 3-941-343-21 TAPE (A) 3-067-347-01 MI SCREW M2 (H)

  • Page 136: Lens, Evf Section

    DCR-TRV738E/TRV740/TRV740E/TRV840 6-1-4. LENS, EVF SECTION ns : not supplied IC551 LCD903 M904 M905 Be sure to read “Precautions upon replacing CCD imager” on page 4-7 when changing the CCD imager. Ref. No. Part No. Description Ref. No. Part No. Description...
  • Page 137 DCR-TRV738E/TRV740/TRV740E/TRV840 6-1-5. CABINET (R) SECTION ns : not supplied LCD section (See page 6-6 (TRV738E/TRV740/TRV740E), 6-7 (TRV840)) : The printed wiring board of the Control switch block (CF-2500) on which BT001 (lithium battery) is mounted, is not shown. CAUTION : Danger of explosion if battery is incorrectly replaced.
  • Page 138 DCR-TRV738E/TRV740/TRV740E/TRV840 6-1-6. LCD SECTION (2.5 INCH LCD MODEL) (TRV738E/TRV740/TRV740E) (TYPE SH) LCD901 - 1 5 6 / 1 a r d ND901 D902 LCD902 LCD901 (TYPE SO) TYPE SH :TRV738E/TRV740E:AEP,EE,NE,RU TYPE SO :TRV740/TRV740E:E,HK,AUS,CH,JE Ref. No. Part No. Description Ref. No.

  • Page 139: Lcd Section (3.5 Inch Lcd Model) (Trv)

    DCR-TRV738E/TRV740/TRV740E/TRV840 6-1-7. LCD SECTION (3.5 INCH LCD MODEL) (TRV840) LCD901 - 1 5 6 / 1 a r d ND901 D902 LCD902 Ref. No. Part No. Description Ref. No. Part No. Description 3-072-272-41 WINDOW, LCD 1-683-628-21 FP-412 FLEXIBLE BOARD X-3952-198-1 COVER (3) ASSY (M), CPC...

  • Page 140: Cassette Compartment Assy, Drum Assy

    DCR-TRV738E/TRV740/TRV740E/TRV840 6-1-8. CASSETTE COMPARTMENT ASSY, DRUM ASSY LS chassis block assembly M901 (See page 6-9) Mechanical chassis block assembly (See page 6-10 to 6-11) Ref. No. Part No. Description Ref. No. Part No. Description 3-065-932-01 PAN (2 MAIN M1.4X1.6), CAMERA 3-065-935-01 HLC CUT 1.8X4X0.5...

  • Page 141: Ls Chassis Block Assembly

    DCR-TRV738E/TRV740/TRV740E/TRV840 6-1-9. LS CHASSIS BLOCK ASSEMBLY ns : not supplied S001 S002 Q001 H001 D001 H002 LS-057 Q002 FP-301 FP-302 FP-300 Ref. No. Part No. Description Ref. No. Part No. Description 3-065-822-02 RAIL (S), GUIDE 3-065-830-01 SPRING, S RATCHET 3-947-503-01 SCREW (M1.4)
  • Page 142 DCR-TRV738E/TRV740/TRV740E/TRV840 6-1-10. MECHANICAL CHASSIS BLOCK ASSEMBLY-1 ns : not supplied M902 M903 Mechanical chassis block assembly-2 (See page 6-11) Ref. No. Part No. Description Ref. No. Part No. Description A-7096-422-A BASE ASSY, DRUM 3-065-881-01 SPRING, P PRESSURE PLATE 3-947-503-01 SCREW (M1.4) 3-065-934-01 HLW CUT 0.98X3X0.25...
  • Page 143 DCR-TRV738E/TRV740/TRV740E/TRV840 6-1-11. MECHANICAL CHASSIS BLOCK ASSEMBLY-2 Ref. No. Part No. Description Ref. No. Part No. Description 3-065-920-01 ARM, HC DRIVE 7-624-101-04 STOP RING 1.2 (E TYPE) 3-065-913-01 GEAR (4), LD A-7096-412-A GEAR (T) ASSY, GUIDE 3-065-914-01 SHEET, COVER X-3951-307-1 PLATE ASSY, M SLIDE...

  • Page 144: Electrical Parts List

    DCR-TRV738E/TRV740/TRV740E/TRV840 CD-358 LB-076 PD-156 6-2. ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • RESISTORS When indicating parts by reference number, parts list may be different from the parts All resistors are in ohms. please include the board name.
  • Page 145 DCR-TRV738E/TRV740/TRV740E/TRV840 PD-156 Ref. No. Part No. Description Ref. No. Part No. Description C5509 1-110-457-11 ELECT CHIP 3.3uF IC5602 8-759-075-70 IC TA75S393F-TE85R C5510 1-164-943-11 CERAMIC CHIP 0.01uF IC5701 8-759-573-02 IC BU9735K-E2 C5511 1-164-739-11 CERAMIC CHIP 560PF C5512 1-125-777-11 CERAMIC CHIP 0.1uF <...
  • Page 146 DCR-TRV738E/TRV740/TRV740E/TRV840 PD-156 PD-160 Ref. No. Part No. Description Ref. No. Part No. Description R5529 1-218-990-11 SHORT 0 (TRV840) C5516 1-164-872-11 CERAMIC CHIP 82PF R5530 1-218-990-11 SHORT 0 (TRV840) (TRV740/TRV740E:E,HK,AUS,CH,JE) R5531 1-218-980-11 RES-CHIP 180K 1/16W C5516 1-164-874-11 CERAMIC CHIP 100PF (TRV738E/TRV740E:AEP,EE,NE,RU)
  • Page 147 DCR-TRV738E/TRV740/TRV740E/TRV840 PD-160 SI-032 Ref. No. Part No. Description Ref. No. Part No. Description < TRANSISTOR > A-7078-047-A SI-032 BOARD, COMPLETE ********************** Q5503 8-759-054-48 TRANSISTOR UP04601008S0 Q5504 8-729-052-65 TRANSISTOR 2SA1774HT2L < CAPACITOR > Q5505 8-729-041-23 TRANSISTOR NDS356AP Q5506 8-729-052-64 TRANSISTOR DTC144EHT2L...

  • Page 148: Pages From 6-17 To 6-25 Are Not Shown

    DCR-TRV738E/TRV740/TRV740E/TRV840 VC-278 Ref. No. Part No. Description Ref. No. Part No. Description A-7012-212-A VC-278 (GNA) BOARD, COMPLETE (SERVICE) Electrical parts list of the VC-278 board (TRV740/TRV840) ************************************** are not shown. A-7012-362-A VC-278 (GPAO) BOARD, COMPLETE (SERVICE) Pages from 6-17 to 6-25 are not shown.
  • Page 149 DCR-TRV738E/TRV740/TRV740E/TRV840 Ref. No. Part No. Description Ref. No. Part No. Description ************************************************************ ACCESSORIES ************ 1-475-141-61 REMOTE COMMANDER (RMT-814) 1-475-599-11 ADAPTOR, AC (AC-L10) (TRV738E/TRV740:US,CND,E,JE/ TRV740E:AEP,EE,NE,RU,E,HK,AUS,JE/TRV840) 1-475-599-71 ADAPTOR, AC (AC-L10) (TRV740:KR) 1-475-599-81 ADAPTOR, AC (AC-L10) (TRV740E:CH) 1-569-007-11 ADAPTOR, CONVERSION 2P (TRV740:JE/TRV740E:JE) 1-569-008-21 ADAPTOR, CONVERSION 2P...
  • Page 150 DCR-TRV738E/TRV740/TRV740E/TRV840 Ref. No. Part No. Description 1-769-608-11 CORD, POWER (TRV738E/TRV740:E/TRV740E:AEP,EE,NE,RU,E/TRV840:E,AR) 1-776-985-11 CORD, POWER (TRV740:KR) 1-782-476-11 CORD, POWER (TRV740E:CH) 1-783-374-11 CORD, POWER (TRV740E:HK) 1-790-107-22 CORD, POWER (TRV740:US,CND/TRV840:US,CND) 1-790-732-11 CORD, POWER (TRV740:JE/TRV740E:JE) 3-072-414-01 SPVD-008 (CD-ROM USB DRIVER) (TRV738E/TRV740:E,JE,KR/TRV740E/TRV840:E,AR) 3-072-650-11 MANUAL, INSTRUCTION (ENGLISH)
  • Page 151 DCR-TRV738E/TRV740/TRV740E/TRV840 〈 〉 FOR CAMERA COLOR REPRODUCTION ADJUSTMENT For NTSC model DCR-TRV740/TRV840 Take a copy of CAMERA COLOR REPRODUCTION FRAME with a clear sheet for use. ✂ For PAL model DCR-TRV738E/TRV740E — 181 —...
  • Page 152 DCR-TRV738E/TRV740/TRV740E/TRV840 2002C1600-1 Sony EMCS Co. 9-929-938-31 ©2002.3 — 182 — Published by DI Customer Center...

  • Page 153: Revision History

    Reverse 992993831.pdf Revision History S.M. Rev. Ver. Date History Contents issued 2002.03 Official Release — —...

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