LG HCS6000A Service Manual page 38

2) Check MSP4448G and Surroundings
5V is supplied to IC701(10, 16, 49, 63)?
8V is supplied to IC701(31)?
18.432MHz Clock is input to IC701(54,
55)?
Data pulse is input to IC701(6)?
48kHz clock is input to IC701(4)?
Analog audio is output from IC701(28,
29)? Fig.04
Fig.04
Analog audio output
YES
YES
YES
NO
NO
NO NO
NO NO
NO
NO
3-28
Check Power Supply Part
12V is supplied to IC703(1)?
NO
Check Power Supply Part
Check X701
Check IC400
Check IC702 and surroundings