Bluetooh Part (Optional Part) - LG MBD-D102X Service Manual

ELECTRICAL TROUBLESHOOTING GUIDE OF AUDIO PART

11. BLUETOOH PART (OPTIONAL PART)

Check bluetooth module
YES
Check IC200
(BU4052) 2, 15PIN input
waveform.
YES
Check IC200 (BU4052)
3, 13PIN output waveform.
YES
Check IC801
(MC4580) 2, 6PIN input
waveform.
YES
OK
Check IC200
NO
(BU4052) 16PIN V
8PIN V
SS
Replace the related parts
Check IC801
NO
(MC4580) 4PIN V
8PIN V
DD
Replace the related parts.
3-13
NO
,
DD
power
YES
NO
,
SS
power
YES
Check u-COM (IC100)
3, 69PIN communication.
Refer to SMPS
Troubleshooting.