LG LX-M240 D - Audio Part; Pcb Assy

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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 +5V appear at ZD901?
Check the pattern of
IC301 pin .
Check the waveform
of D937 (+).
Replace ZD901.
Replace the D937
YES
YES
NO
NO
26
16