LG DP450P Service Manual

3-17
MAIN ELECTRICAL TROUBLESHOOTING GUIDE
B
Check the related circuit of
Audio DAC.
Check Aout_L
related circuit Aout_R
Check communi cation lines
on MT1389
Check Audio lter, amplify,
mute circuit.
Check the cable connection
on Front pannel.
TEST END
YES
YES
YES
NO
NO
NO
NO
NO
YES
YES
Normal
Audio output when
disc playback.
Normal
IR. VFD & Front pannel
key functions.
Proper
Aout_L, Aout_R signal
on MTK1389
Commun-
ications between
IR.VFD Front pannel key &
MT1389 & Front μ-com
is normally.

LG DP450P Specifications

General

Brand	LG
Model	DP450P
Category	Portable DVD Player
Language	English