LG XC62-A0U Service Manual page 16

No 5.0V
YES
Is the Vcc(5.6V)
supplied to IC957 pin1?
YES
Is the IC957 pin4 "H"?
YES
Check or Replace the IC957
No 3.3V
YES
Is the Vcc(4.2V)
supplied to IC955 pin1?
YES
Is the IC955 pin4 "H"?
YES
Check or Replace the IC955
No 12V
YES
Is the Vcc(13.5V)
supplied to IC947 pin1?
YES
Is the IC947 pin4 "H"?
YES
Check or Replace the IC947
NO
Check or Replace the D959
NO
Check the CD CTL "H"
signal from µ-com
NO
Check or Replace the D943
NO
Check the P CTL "H"
signal from µ-com
NO
Check or Replace the D940
NO
Check the P CTL "H"
signal from µ-com
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