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— 5 —

In this unit, about 5 seconds after power is supplied (8.4V) to the
battery terminal using the service power cord (J-6082-223-A), the
power is shut off so that the unit cannot operate.
This following two methods are available to prevent this. Take note
of which to use during repairs.

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

Press the following battery switch using adhesive tape, etc.

Procedure:
1.

Remove the cassette lid referring to the section “2. DISASSEMBLY, 2-1”.

2.

Remove the operation switch block (FK-71 board) referring to the section “2. DISASSEMBLY, 2-5”.

3.

Remove the CB-61 board referring to section “2. DISASSEMBLY, 2-4”, and remove the FP-586 flexible board from CN3140 (4P) on
the RJ-77 board.

4.

Apply +4.5 V from the regulated power supply to the loading motor terminal as shown below and remove the cassette.

 Be careful not contact with the lid frame assembly when applying +4.5 V.

If the CAUTION lamp flashes, but no indicators appear on the LCD screen or on the monitor TV screen, it means that an error occurs either
in the fan motor or in the fan motor drive circuit.  Refer to the schematic diagram on page 4-43 for repair.

Regulated power supply

4.5V

GND

Control switch block

Loading motor

Lid frame assembly

Battery switch

Battery sig terminal

Battery terminal 

‘

Battery terminal 

’

— 6 —

When problems occur while the unit is operating, the self-diagnosis
function starts working, and displays on the LCD screen or monitor
TV (Note) 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.

The “self-diagnosis display” data will be backed up by the coin-type lithium battery of FP-571 flexible board. When this coin-type lithium battery
is removed, the “self-diagnosis display” data will be lost by initialization.

When problems occur while the unit is operating, the counter of the
viewfinder 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.

Set the DISPLAY in the menu system to V-OUT/LCD only for the
model with LCD screen, and press the DISPLAY button.

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 10 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

[4] : Occurred fourth time

[2] : Occurred second time

[5] : Occurred fifth time

[3] : Occurred third time

[6] : Occurred the last time

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

1 1

3 1

C

Repaired by:

Refer to page 7.
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

LCD screen or monitor TV

C : 3 1 : 1 1

Order of previous errors

Backup No.

self-diagnosis codes

C : 3 1 : 1 1

[3]

Lights up

LCD screen or monitor TV

[3] C : 3 1 : 1 1

Control dial

— 7 —

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

2

1

2

2

2

3

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

0

0

0

0

0

0

1

0

1

1

2

0

2

1

2

2

2

3

2

4

3

0

4

0

4

2

1

0

1

1

2

0

2

1

2

2

2

3

2

4

3

0

4

0

4

2

Condensation.

Video head is dirty.

Non-standard battery is used.

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.

Winding S reel fault when counting the
rest of tape.

T reel fault.

S reel fault.

T reel fault.

FG fault when starting capstan.

FG fault when starting drum.

FG fault during normal drum operations.

LOAD direction loading motor time-
out.

UNLOAD direction loading motor
time-out.

T reel side tape slacking when
unloading.

Winding S reel fault when counting the
rest of tape.

T reel fault.

S reel fault.

T reel fault.

FG fault when starting capstan.

FG fault when starting drum

FG fault during normal drum
operations

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

Clean with the optional cleaning cassette.

Use the info LITHIUM battery.

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.

1-1

This section is extracted from
instruction manual. (GV-D900)