DOWNLOAD Sony DCR-TRV940 / DCR-TRV940E / DCR-TRV950 / DCR-TRV950E (serv.man2) Service Manual ↓ Size: 9.57 MB | Pages: 108 in PDF or view online for FREE

— 5 —

1-1.

Note for Repair ································································ 1-1

1-2.

Discharging of the Flash Unit’s Charging Capacitor ······ 1-1

1-2-1. Preparing the Short Jig ···················································· 1-1
1-2-2. Discharging the Capacitor ··············································· 1-1
1-3.

Power Supply During Repairs ········································· 1-2

1-4.

To Take Out a Cassette when not Eject (Force Eject) ····· 1-2

1-5.

Notes on Handling the Laser Diode
[Laser Unit (D501)] ························································· 1-3

1-5-1. Soldering Conditions of Laser Unit (D501) ···················· 1-3
1-6.

Self-diagnosis Function ··················································· 1-4

1-6-1. Self-diagnosis Function ··················································· 1-4
1-6-2. Self-diagnosis Display ····················································· 1-4
1-6-3. Service Mode Display ····················································· 1-4
1-6-4. Self-diagnosis Code Table ··············································· 1-5
1-7.

Process after Fixing Flash Error ······································ 1-6

2-1.

Cabinet (R) Block ···························································· 2-2

2-2.

P Cabinet (C) ··································································· 2-2
Service Position to Check PD-168 Board ······················· 2-3

2-3.

LCD Module ···································································· 2-3

2-4.

LCD Block ······································································ 2-4

2-5.

FP-495 Flexible Board ···················································· 2-4

2-6.

CK-116 Board ································································· 2-5

2-7.

F Panel Block ·································································· 2-5
Service Position to Check MA-410 Board ······················ 2-6

2-8.

AF Laser Bracket Assembly ············································ 2-6

2-9.

MA-410 Board ································································ 2-7

2-10. FP-504 Flexible Board ···················································· 2-7
2-11. Battery Panel Block ························································· 2-8
2-12. BT-003 Board (TRV950/TRV950E) ································ 2-8
2-13. ST Frame Block ······························································· 2-9
2-14. DB-014 Board ································································· 2-9
2-15. MD Block ······································································ 2-10
2-16. Lens Block ····································································· 2-11
2-17. VC-288 Board ······························································· 2-11
2-18. Mechanism Deck (J200) ················································ 2-12
2-19. Stroboscope Block ························································· 2-12
2-20. JK-222 Board ································································ 2-13

Service Position to Check the Camera Section ············· 2-13
Service Position to Check the VTR Section ·················· 2-14

2-21. Flash Unit ······································································ 2-15
2-22. EVF Block ····································································· 2-15
2-23. FP-497 Flexible Board ·················································· 2-16
2-24. Control Switch Block (PS-1870) ··································· 2-17
2-25. SE-132 Board ································································ 2-17
2-26. Grip Cabinet Block ························································ 2-18
2-27. Control Switch Block (CF-1870) ·································· 2-19
2-28. MS Assembly ································································ 2-19
2-29. VF lens Assembly ·························································· 2-20
2-30. Circuit Boards Location ················································ 2-21
2-31. Flexible Boards Location ·············································· 2-22

3-1.

Overall Block Diagram (1/4) ··········································· 3-1

3-2.

Overall Block Diagram (2/4) ··········································· 3-3

3-3.

Overall Block Diagram (3/4) ··········································· 3-5

3-4.

Overall Block Diagram (4/4) ··········································· 3-7

3-5.

Power Block Diagram (1/3) ············································· 3-9

3-6.

Power Block Diagram (2/3) ··········································· 3-11

3-7.

Power Block Diagram (3/3) ··········································· 3-13

Section

Title

Page

Section

Title

Page

4-1.

Frame Schematic Diagrams
Frame Schematic Diagram (1/3) ····································· 4-1
Frame Schematic Diagram (2/3) ····································· 4-3
Frame Schematic Diagram (3/3) ····································· 4-5

4-2.

Schematic Diagrams ························································ 4-9
CD-389 (CCD IMAGER) ·············································· 4-11
SE-132 (PITCH/YAW SENSOR) ·································· 4-65
MA-410 (MIC AMP, AF LASER CONTROL) ············· 4-67
CK-116 (CONTROL SWITCH) ··································· 4-69
JK-222 (AV IN/OUT, DV/USB CONNECTOR) ·········· 4-71
PD-168 (1/2)
(LCD DRIVER, TIMING GENERATOR) ··················· 4-73
PD-168 (2/2) (LCD DRIVER, BACKLIGHT) ············· 4-75
LB-080 (EVF, EVF BACKLIGHT) ······························ 4-77
FP-504 FLEXIBLE ······················································· 4-79
FP-495, FP-497, FP-500, FP-503 FLEXIBLE ·············· 4-81
FP-100, FP-102, FP-228 FLEXIBLE ···························· 4-83
CONTROL SWITCH BLOCK
(CF-1870, KP-1870, PS-1870) ······································ 4-85

4-3.

Printed Wiring Boards ··················································· 4-87
CD-389 ·········································································· 4-89
SE-132 ········································································· 4-101
MA-410 ······································································· 4-103
CK-116 ········································································ 4-105
JK-222 ········································································· 4-109
PD-168 ········································································· 4-113
LB-080 ········································································· 4-115
FP-504 FLEXIBLE ····················································· 4-117
FP-495, FP-497 FLEXIBLE ········································ 4-121
FP-100, FP-102, FP-228 FLEXIBLE ·························· 4-123

4-4.

Waveforms ··································································· 4-125

4-5.

Mounted Parts Location ·············································· 4-131

5-1.

Exploded Views ···························································· 5-1

5-1-1. Main Section ································································· 5-1
5-1-2. F Panel Block ································································ 5-2
5-1-3. Cabinet (R) Block ························································· 5-3
5-1-4. LCD Block ···································································· 5-4
5-1-5. Cabinet (L) Block ························································· 5-5
5-1-6. Grip Cabinet Block ······················································· 5-6
5-1-7. Stroboscope Block ························································ 5-7
5-1-8. EVF Block ···································································· 5-8
5-1-9. Battery Panel Block ······················································ 5-9
5-1-10. MD Block ··································································· 5-10
5-1-11. Lens Block ·································································· 5-11
5-1-12. Overall Mechanism Deck Section (J200) ··················· 5-12
5-1-13. LS Chassis Block Assembly ······································· 5-13
5-1-14. Mechanism Chassis Block Assembly ························· 5-14
5-2.

Electrical Parts List ····················································· 5-15

1-1

The charging capacitor  of the Flash unit is charged up to the
maximum 300 V potential.
There is a danger of electric shock by this high voltage when the
battery is handled by hand.  The electric shock is caused by the
charged voltage which is kept without discharging when the main
power of the unit is simply turned off.  Therefore, the remaining
voltage must be discharged as described below.

To preparing the short jig, a small clip is attached to each end of a
resistor of 1 k

Ω

 /1 W (1-215-869-11).

Wrap insulating tape fully around the leads of the resistor to prevent
electrical shock.

1 k

Ω

/1 W

Wrap insulating tape.

Short-circuit between the positive and the negative terminals of
charged capacitor with the short jig about 10 seconds.

Make sure that the flat cable and flexible board are not cracked of
bent at the terminal.
Do not insert the cable insufficiently nor crookedly.

Cut and remove the part of gilt 
which comes off at the point.
(Be careful or some 
pieces of gilt may be left inside) 

When remove a connector, don’t pull at wire of connector.
It is possible that a wire is snapped.

When installing a connector, don’t press down at wire of connector.
It is possible that a wire is snapped.

Capacitor

R: 1 k

Ω

/1 W

(Part code:
1-215-869-11)

1-2

In this unit, about 10 seconds after power is supplied to the battery terminal using the regulated power supply (8.4V), the power is shut off so
that the unit cannot operate.
These following two methods are available to prevent this. Take note of which to use during repairs.

Use the AC power adaptor (AC-L10, AC-VQ800 etc.).

Connect the servicing remote commander RM-95 (J-6082-053-B) to the LANC jack, and set the commander switch to the “ADJ” side.

1

Refer to 2-2 to remove the cabinet (R) block assembly.

2

Refer to 2-7 to remove the F panel block.

3

Refer to 2-11 to remove the battery panel block.

4

Refer to 2-13 to remove the ST frame block.

5

Refer to 2-14 to remove the DB-014 board.

6

Refer to 2-15 to remove the MD block.

7

Supply +4.5V from the DC power supply to the loading motor and unload with a pressing the cassette compartment.

Loading motor   

DC power supply

(+4.5Vdc)

 : Unloading
 : Loading

Disconnect from CN1006 (27P)
of VC-288 board

1-3

The laser diode may suffer electrostatic breakdown because of the
potential difference generated by the charged electrostatic load, etc.
on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.

Temperature of

350 

°

C

the Soldering Iron

Time to Solder

3 seconds

Interval to Solder

Next terminal is soldered after
waiting for 1 second

Adjustment is needed when laser unit (D501) is replaced.
Refer to “20. Hologram AF Output Adjustment” and “21.
Hologram AF Angle Check” of SERVICE MANUAL, ADJ
(992997851.pdf).

Laser unit
(D501)