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– 5 –

Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER
lamp from flashing.

For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be con-
firmed, it is possible to bring up past occurances of failure for confirmation on the screen:

[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:

[Screen display] / channel [5] / Sound volume [-] / Power ON

˘

                  Note that this differs from entering the service mode (mode volume [+]).

STANDBY/SLEEP lamp

Lamp ON 0.3 sec.

Lamp OFF 3 sec.

Lamp OFF 0.3 sec.

2 times

4 times

Diagnostic Item

Flash Count*

+B overcurrent/overvoltage

2 times

Vertical deflection stopped

4 times

* One flash count is not used for self-diagnostic.

002 : 000
004 : 000

Numeral "0" means that no fault has been detected.

101 : 000

SELF DIAGNOSTIC

– 6 –

Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic
screen during repairs. When you have completed the repairs, clear the result display to “0”.

Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after
completion of the repairs.

[Clearing the result display]
To clear the result display to “0”, press buttons on the remote commander sequentially as shown below when the
diagnostic screen is being displayed.

Channel [8]

/ 0

[Quitting Self-diagnostic screen]
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.

[+B overcurrent ªOCPº]

Occurs when an overcurrent on the +B(135) line is detected by Q500. If Q500 go to
ON and the voltage to pin 50 of IC301 more than 3.5V when V.SYNC is more than
seven verticals in a period, the unit will automatically turn off.

[Vertical deflection stopped]

Occurs when an absence of the vertical deflection pulse is detected by Pin 17 and
IC001 shut down the power supply.

[White balance failure]

If the RGB levels* do not balance or become low level within 5 seconds, this error
will be detected by IC301. TV will stay on, but there will be no picture.

* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)

IC301

Y/CHROMA JUNGLE

IC001

SYSTEM

IC003

MEMORY

MP/
PROTECT

II-DAT1

DAT

II-DATO

5

50

54

SDA

8

FROM
[+B] Q500

17

[V] 
D553

53

– 10 –

1 Eight screws

(+BVTP 4 

× 16)

1 Rear Cover

1 Four screws 

washer head
(BVTP 3 

× 12)     

CRT SUPPORT BLOCK

Speaker

Push claw

 Do not take out CRT support block while TV set in

standing position.

 Undress necessary wires that creates tension while

placing the chassis into Service Position.

F Board

Bracket F1 PC Board

1 One screw

(+BVTP 4 

× 16)

2 Terminal Bracket

–

 11 

–

For replacements of light guide,unscrew them, exchange with
new parts and fix them with screws respectively.

•

Please make sure the TV set is not in standing position before removing necessary
CRT support located on bottom right and left.

One screw
(+BVTP 3 

× 12)

1

Push to direction of arrow 
and remove

7

5

8

Demagnetic coil

1 Four screws 

(washer head)
(BVTP 3 

× 12)

4

Two screws
(Tapping 5+
Crown Washer)

2 Speaker

(5 

× 9cm)

0Tension

Beznet
hook

spring

Chassis assy

Deflection
yoke

C board

Coating earth assy

!¢

Picture tube

!£ Cushion

3Two screws

(Tapping 5 +
Crown Washer) 

6

Holder DGC

Cushion DGC

  Cushion DGC

!™

 

!∞

!¡

A Board

Slim Beznet

CRT Support Block

9

Anode 
cap