LG LAS350B Service Manual page 24

ELECTRICAL TROUBLESHOOTING GUIDE
A
YES
Power On.
YES
Show HELLO.
YES
Connect a bluetooth device,
music is played.
YES
Does it output
audio?
YES
Show
the bluetooth name
YES
B
Flash
NO
Memory operates
properly?
SDRAM
works properly?
Check if CON104 is ok?
Check if Front circuit.
NO
Check
if CON102 is ok?
Replace the bluetooth module
Check the AMP part
3-11
NO
YES
NO
YES
NO
YES
NO
YES
NO
Check connection lines
between FLASH & MCL3730
and the FLASH access time
whether is suitable or not.
Check connection lines
between SDRAM(IC102) &
MCL3730 and the SDRAM
is damaged.
Reconnect it.
Reconnect it.