– 7 –
KV-ES29M90
RM-916
6. SELF-DIAGNOSTIC CIRCUIT
IC4301
RGB JUNGLE
CXA2100Q
OVP OCP
FROM
CRT (IK)
[V] D6806/D6801
IC001
SYSTEM
SDA
SDA
IC003
MEMORY
IC004
MEMORY
IKIN
XRAY LED
525
20 54
3
6
V PROT
16 5
[H] IC6801
[+BovercurrentªOCPº] Occurs when an overcurrent on the +B(135) line is detected by Q6610
and Q6609.
If Q6610 and Q6609 go to ON, the voltage to the pin3 of IC001 go to UP.
The unit will automatically turn off.
[+BovervoltageªOVPº] Occurs when an overvoltage on the +B(135) line is detected by D6635,
Q6611 and Q6612. If Q6611 and Q6612 go to ON, the voltage to pin6 of
IC001 go to UP. The unit will automatically turn off.
[Verticaldeflectionfailure] Occurs when an absence of the vertical deflection pulse is detected by
Q6811, Q6819, Q6820, Q6821 and D6801. 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.
[HighvoltageprotectorofHorizontalDeflection] Occurs when an overvoltage of horizontal pulse is detected by D6809 and
IC6801.
If the voltage of 7 pin of IC6801 goes to High, the voltage to pin20 of
IC4301 go to UP. The unit will automatically turn off.