LG LX-E330A - Page 11

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❏ AUDIO PART
VKK PART
Does DC - 27V appear at
PN601 pin .
Check the pattern of FRONT
PCB ASS’Y.
Check the DC -34V of C928(-).
Check the DC -27V of
ZD 902(-).
Check the DC -27V of
Q901 “E”.
Check the PATTERN.
Replace the D936.
Replace the ZD902.
Replace the Q901.
YES
YES
YES
YES
NO
NO
NO
NO
P-SENS PART
Does +4.2V appear at ZD901?
Check the pattern of
IC301 pin .
Check the waveform
of D937 (+).
Replace ZD901.
Replace the D937.
YES
YES
NO
NO
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