DCR-TRV738E, DCR-TRV740, DCR-TRV740E, DCR-TRV840 - Sony Movie Service Manual (repair manual). Page 8

1-1

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.
These following two methods are available to prevent this. Take note of which to use during repairs.

Use the DC IN terminal. (Use the AC power adaptor.)

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

1

Refer to 2-6. to remove the front panel section.

2

Refer to 2-9. to remove the cabinet (upper) section.

3

Refer to 2-9. to remove the cabinet (R) section.

4

Refer to 2-10. to remove the lens section.

5

Refer to 2-13. to remove the EVF section.

6

Refer to 2-16. to remove the battery panel section.

7

Refer to 2-19. and 2-21. to remove the cabinet (L) section. (Include the CS frame assembly and control switch block (SS-1380).)

8

Disconnect CN4401 (2P) of VC-278 board.

9

Add +5V from the DC POWER SUPPLY and unload with a pressing the cassette compertment.

qa

 

Let your hold the cassette 

     compartment and rise the cassette
     compartment to take out a cassette.

DC power supply

(+5V)

Loading 
motor

Adjust the bending 
of a tape

Timing belt

Press the cassette compartment not 
to rise the cassette compartment

Disconnect CN4401 of 
VC-278 board

0

Pull the timing belt in the direction of 
arrow 

A

 with a pincette while pressing 

the cassette compartment (take care 
not to damage) to adjust the bending 
of a tape.

Pincette

Timing belt

A