LG LST-4200A Service Manual - Page 31

Fig.07, Fig.06

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(E) YES Are IIC SCL and SDA signal from pin 60 and pin NO 61 generated normally? YES Are IIC SCL, which is connected between IC11O NO and pin 1/pin 2 of IC102, and SDA signal outputted? YES Are IIC SCL and SDA signal gener- NO ated into 6 pin and pin 7 of IC102? Check IC110. Check IC102, IC110. Check IC102, IC106. Fig.06 Fig.07 3-22

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3-22
Are IIC SCL and SDA signal from pin 60 and pin
61 generated normally? <Figure.06 & Figure.07>
(E)
Are IIC SCL, which is connected between IC11O
and pin 1/pin 2 of IC102, and SDA signal outputted?
Check IC110.
NO
Check IC102, IC110.
NO
YES
YES
Are IIC SCL and SDA signal gener-
ated into 6 pin and pin 7 of IC102?
Check IC102, IC106.
NO
YES
Fig.07
Fig.06