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KP-57WV600/57WV700/
65WV600/65WV700
Self-Diagnosis Function Operation
+B overcurrent (OCP)
Occurs when excessive current ß ows through R5013. The increase in voltage across R5013 causes the output of Q5004 to go high, and this high
signal goes to the micro.
Occurs when excessive current ß ows through R5013. The increase in voltage across R5013 causes the output of Q5004 to go high, and this high
signal goes to the micro.
+B overvoltage (OVP)
IC6505 detects +B OVP condition and turns on Q6522. This sends a high signal to the micro and also shuts down the AC relay.
IC6505 detects +B OVP condition and turns on Q6522. This sends a high signal to the micro and also shuts down the AC relay.
V-STOP
Occurs when an absence of the vertical deß ection pulse is detected by pin 24 of IC2801 (B Board). Power supply will shut down when waveform
interval exceeds 2 seconds.
Occurs when an absence of the vertical deß ection pulse is detected by pin 24 of IC2801 (B Board). Power supply will shut down when waveform
interval exceeds 2 seconds.
White Balance Failure
If the RGB levels* do not balance within 2 seconds after the power is turned on, this error will be detected by IC2801. TV will stay on, but there
will be no picture.
If the RGB levels* do not balance within 2 seconds after the power is turned on, this error will be detected by IC2801. TV will stay on, but there
will be no picture.
*(Refers to the RGB levels of the AKB detection Ref pulse that detects 1K).
Low B OCP/OVP
Occurs when set 5V is out.
Occurs when set 5V is out.
Horizontal Deß ection Stopped
Occurs when either:
Occurs when either:
1) a +B overcurrent is detected (IC5007), or
2) overheating is detected (Thermistor TH5002).
Self-Diagnosis Block Diagram
1
2
4
3
3
1
2
R5104
R5105
R5125
Q5018
RY6501
Q6527
Q6530
Q6532
D6537
D6505
D5007
PH6501
Q5004
R5013
D5005
IC6505
Q6522
1K-PROT2
+B OVP
HV PROT
UNREG 11V
5V
UNREG 7V
+B OCP
2
1
3
4
IC5007
VDY-
CRT
IC2801
Y/C JUNGLE
SCL
SDA
AKB
VPROT
HPROT
IC2300
MAIN MICRO
M
CLKO
DATO
AC RLY
LOW B ERR
OVP
OCP
STR
STBY-LED
STBY-LED
STBY-LED
P_SW(-)
IC504
5V
+B
+B
+B
D
B
M
D
D
A
2
14
34
35
58
26
25
29
30
69
43
44
45
48
O
I
O
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