LG T910BU Service Manual page 15

NO CHARACTER
CHECK
IC371 PIN 1, 2, 3 ?
YES
CHECK
IC371 PIN 19, 20, 21 ?
PIN 10, 18(5V) ?
YES
CHECK
IC302 PIN 18, 19, 20,
PIN 9 (5V) ?
YES
CHECK
IC303 PIN 1, 3, 5
PIN10 (12V),
PIN 6 (80V) ?
YES
CHECK
R, G, B CATHODE
VOLTAGE?
YES
TROUBLE IN
CDT SOCKET
2. NO CHARACTER
NO
NO
NO
NO
NO
- 15 -
TROUBLE IN
P301, SIGNAL CABLE,
PC SIGNAL
TROUBLE IN
IC371, P302
TROUBLE IN
IC302, P302
TROUBLE IN
IC303
TROUBLE IN
IC304