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– 5 –

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 when the self-diagnostic screen
is displayed as shown below:

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 OCP ]

Occurs when an overcurrent on the +B(135) line is detected by
Q6804.
If Q6804 go to ON, the voltage to the pin57 of IC4301 go to "HIGH".
The unit will automatically turn off.

[High voltage protector of Horizontal Deflection]

Occurs when an overvoltage of horizontal pulse is detected by
D6809.
If the voltage of anode D6809, Q6814 and D6808 goes to "High", the
voltage to pin57 of IC4301 go to "HIGH". The unit will automatically
turn off.

[+B overvoltage OVP ]

Occurs when an overvoltage on the +B(135) line is detected by
D6635 and Q6611. If Q6611 go to ON, the voltage to pin6 of IC001
go to "HIGH". The unit will automatically turn off.

[Vertical deflection failure]

Occurs when an absence of the vertical deflection pulse is detected
by Q6808 and R6910. 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 IC4301.
TV will stay on, but there will be no picture.

[Micro Fails to Start-up]

Occurs when 5V/9V is not supplied to micon (IC001). No Raster will
be detected or No Picture.

IC4301

RGB JUNGLE

CXA2170AQ

OVP

FROM

CRT (IK)

[V]

 Q6808, R6910

IC001

SYSTEM

SDA

SDA

9V

5V

IC004

MEMORY

IK_IN

H PROT

    RED LED 

5

24

57

7

84

6

V PROT  

56

[OCP]

 Q6804, D6821

[H]

 D6808, D6809

14,47,82

– 6 –

2

 Two screws

     (Washer Head)
     (+P4 

× 

16)

1

 Two screws

     (+BVTP 4 

× 

16)

2

 Rear cover   

1

   Fourteen  screws

 (+BVTP 

4 

× 

16)

2

 One Screw

     (+BVTP 3 

× 

12)

3

 One screw

     (+BVTP 4 

× 

16)

4

 Terminal Bracket

1

 One screw

     (+BVTP 3 

× 

12)

5

 Three Hooks

2

 J Board

1

 Five screws

     (+BVTP 3 

× 

12)

– 7 –

1

 Five Hooks     

2

 H1 Board    

4

 H2 Board    

3

 Four

     Hooks     

1

 Five screws

     (+BVTP 3 

× 

12)

3

 One screw

     (washer head)
     (+P 3 

× 

12)

2

 Five Hooks

5

 Three Hooks

6

 A Board

4

 D Board

2

 

BH1 Board

4

 

BC Board

6

 

BP Board 

(Not used for these models)

5

 Two

     Hooks

1

 Two Hooks

3

 Two Hooks

2

 F1 Board

1

 Four  Hook

1

 Three Hooks

2

 

DL Board

– 8 –

• Please make sure the TV set is not in standing position before removing necessary CRT support located on

bottom right and left.

• When removing the Nut Locking: first make sure to hold the Nut special CRT with a spanner while opening the Nut

Locking using a torque driver. Then proceed to remove the Nut special CRT using a torque driver.

1) Removal the Rear Cover.
2) Unplug all interconnecting leads from the Deflection Yoke, Neck Assy, Degaussing Coils and CRT grounding strap.

Remove Chassis Assy.

3) Place the TV set with the CRT face down on a cushion (jig).

9

 Earth Coating Assy

7

 Degaussing Coil

4

 Anode Cap Removal

q;

 C Board Removal

8

 Spring Tension(4)

     Removal

qd

 Support CRT

     Removal (x2)

5

 Holder, DGC

     Removal (x2)

qf

 Screw, Tapping 7 +

     Crown Washer

qs

 Loosen the Deflection Yoke

  fixing screw and remove

6

 Band, DGC Removal

qa

 Loosen the Neck Assembly

     fixing screw and remove Neck Assy & 
 VM 

board