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TROUBLE SHOOTING CHARTS
4. NO PICTURE
CHECK
19TH PIN OF I501
ABNORMAL
CHANGE INPUT MODE
RF ->AV ->RF
CHECK
CHECK SIGNAL AT
AV Signal
CVBS OF TUNER
ABNORMAL
NORMAL
CHECK
Connection of AV JACK
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NORMAL
CHECK SIGNAL OUT AT R,G,B
NORMAL
CHECK / REPLACE
Q502,Q503,Q504,Q505
CHECK / REPLACE
SCL, SDA, B+
ABNORMAL
OF TUNER
CHECK SIGNAL AT
R,G,B INPUT AND
R,G,B OUTPUT OF I901
CHECK
12V & 220V Line
Heater Voltage
CHECK / REPLACE
CRT
-50-
ABNORMAL
OF I501
CHECK / REPLACE
I501
NORMAL
NORMAL
ABNORMAL
NORMAL
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