DOWNLOAD Sony DCR-TRV270E / DCR-TRV280 / DCR-TRV285E Service Manual ↓ Size: 9.33 MB | Pages: 78 in PDF or view online for FREE

1-1

DCR-TRV270E/TRV280/TRV285E

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.

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.
The following method is available to prevent this.

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

1-2

DCR-TRV270E/TRV280/TRV285E

1

Refer to “SECTION 2. DISASSEMBLY” to remove the mechanism deck block.

2

Disconnect CN2401 (2P) of VC-344 board.

3

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

4

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.

5

Let go your hold the cassette 
compartment and rise the cassette 
compartment to take out a cassette.

Pincette

Timing belt

Timing belt

Press the cassette compartment not to 
rise the cassette compartment

[DC power supply]

(+5V)

Adjust the bending of a tape

Disconnect CN2401 
of VC-344 board.

Loading motor

A

A

1-3

DCR-TRV270E/TRV280/TRV285E

When problems occur while the unit is operating, the self-diagnosis
function starts working, and displays on the viewfinder or LCD
screen what to do. This function consists of two display; self-
diagnosis display and service mode display.
Details of the self-diagnosis functions are provided in the Instruction
manual.

When problems occur while the unit is operating, the counter of the
viewfinder or LCD screen shows a 4-digit display consisting of an
alphabet and numbers, which blinks at 3.2 Hz. This 5-character
display indicates the “repaired by:”, “block” in which the problem
occurred, and “detailed code” of the problem.

The service mode display shows up to six self-diagnosis codes shown in the past.

While pressing the “STOP” key, set the switch from OFF to “ON”, and continue pressing the “STOP” key for 5 seconds continuously. The
service mode will be displayed, and the counter will show the backup No. and the 5-character self-diagnosis codes.

By rotating the control dial, past self-diagnosis codes will be shown in order. The backup No. in the [] indicates the order in which the
problem occurred. (If the number of problems which occurred is less than 6, only the number of problems which occurred will be shown.)
[1] : Occurred first time

[3] : Occurred third time

[5] : Occurred fifth time

[2] : Occurred second time

[4] : Occurred fourth time

[6] : Occurred the last time

Turning OFF the power supply will end the service mode display.

Order of previous errors

Backup No.

Self-diagnosis Codes

C : 3 1 : 1 1

[3]

Lights up

Viewfinder or LCD screen

[3] C : 3 1 : 1 1

1 1

3 1

C

Repaired by:

Refer to “1-4-4. Self-diagnosis Code Table”.

Indicates the appropriate
step to be taken.
E.g.
31 ....Reload the tape.
32 ....Turn on power again.

Block

Detailed Code

Blinks at 3.2Hz

C : Corrected by customer
H : Corrected by dealer
E : Corrected by service

engineer

Viewfinder or LCD screen

C : 3 1 : 1 1

Control Dial

Note: The “self-diagnosis display” data will not be erased (reset), when the lithium battery (CONTROL KEY BLOCK (CF-

5100): BT001) is removed.

1-4E

DCR-TRV270E/TRV280/TRV285E

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

E

E

Block

Function

0

4

2

1

2

2

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

2

3

2

3

2

3

2

3

2

3

2

3

2

3

2

3

2

3

2

3

2

3

2

3

2

6

1

6

1

Detailed

Code

0

0

0

0

0

0

1

0

1

1

2

0

2

1

2

2

2

3

3

0

3

1

4

0

4

1

4

2

4

3

4

4

1

0

1

1

2

0

2

1

2

2

2

3

3

0

3

1

4

0

4

1

4

2

4

3

4

4

0

0

1

0

Symptom/State

Non-standard battery is used.

Condensation.

Video head is dirty.

LOAD direction. Loading does not
complete within specified time

UNLOAD direction. Loading does not
complete within specified time

T reel side tape slacking when unloading.

S reel side tape slacking when unloading.

T reel fault.

S reel fault.

FG fault when starting capstan.

FG fault during normal capstan operations.

FG fault when starting drum.

PG fault when starting drum.

FG fault during normal drum operations.

PG fault during normal drum operations.

Phase fault during normal drum operations.

LOAD direction loading motor time-
out.

UNLOAD direction loading motor
time-out.

T reel side tape slacking when
unloading.

S reel side tape slacking when
unloading.

T reel fault.

S reel fault.

FG fault when starting capstan.

FG fault during normal capstan
operations.

FG fault when starting drum.

PG fault when starting drum.

FG fault during normal drum
operations.

PG fault during normal drum
operations.

Phase fault during normal drum
operations.

Difficult to adjust focus
(Cannot initialize focus.)

Zoom operations fault
(Cannot initialize zoom lens.)

Self-diagnosis Code

Repaired b

y:

Correction

Use the InfoLITHIUM battery.

Remove the cassette, and insert it again after one hour.

Clean with the optional cleaning cassette.

Load the tape again, and perform operations from the beginning.

Load the tape again, and perform operations from the beginning.

Load the tape again, and perform operations from the beginning.

Load the tape again, and perform operations from the beginning.

Load the tape again, and perform operations from the beginning.

Load the tape again, and perform operations from the beginning.

Load the tape again, and perform operations from the beginning.

Load the tape again, and perform operations from the beginning.

Load the tape again, and perform operations from the beginning.

Load the tape again, and perform operations from the beginning.

Load the tape again, and perform operations from the beginning.

Load the tape again, and perform operations from the beginning.

Load the tape again, and perform operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Remove the battery or power cable, connect, and perform
operations from the beginning.

Inspect the lens block focus reset sensor (Pin qs  of CN1551 of
VC-344 board) when focusing is performed when the control dial
is rotated in the focus manual mode and the focus motor drive circuit
(IC1553 of VC-344 board) when the focusing is not performed.

Inspect the lens block zoom reset sensor (Pin qg  of CN1551 of
VC-344 board) when zooming is performed when the zoom switch
is operated and the zoom motor drive circuit (IC1553 of VC-344
board) when zooming is not performed.