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Trouble Shooting Charts
3. NO PICTURE
Check
19th pin of I701
ABNORMAL
Change input mode
RF--->AV--->RF
Check signal at IF of
Tuner
Check
IF module, SF01,
12V line, 5V line
Check signal at
17th pin I101
NORMAL
Check/Replace
CVBS of PA01,
Peripheral components
NORMAL
ABNORMAL
Check/Replace
SCL, SDA, B+
of Tuner
Check
Heater Voltage
ABNORMAL
Check/Replace
I101
16
Check signal at R, G, B
of I701
Check/Replace
Q550, Q542, Q543,
Q544
Check signal at
R, G, B input and
R, G, B output of I901 &
12V line & 220V line
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