LG MDD64K Service Manual

3-2
4. MICOM PART CHECK I
2. P-SENS
Check power circuit
troubleshooting
NO
YES
P-SENS
Check
the pin6 of P9702
if DC V is over
5.6V
YES
OK
3. VKK PART CHECK
Check power circuit
troubleshooting
NO
YES
VKK CHECK
Check
the pin3 of P9702
if DC V is over
-28V
YES
OK
OK OK
NO
Replace IC101
(KIA7042)
NO
YES
YES
YES YES
Check if IC101 of out-
put voltage is over 4.3V
YES
Check voltage of
IC100(LC87Fxxx) pin4
YES
Refer to SMPS
troubleshooting
MICOM PART
CHECK I
NO
Check P-SENS
(P7904_pin6)
NO
Check both
end voltage of
IC101
(KIA7042)
Check
If input voltage of
IC101 is over
5V
Check the
periphery of IC101
(KIA7042)

LG MDD64K Specifications

General

Brand	LG
Model	MDD64K
Category	Stereo System
Language	English