LG DP170, Service Manual, Page: 22 / 52

3-14
2. MPEG Circuit
Power is on
Does Logo appear
on the screen?
Does the
Video of the DVD Disc
play properly?
Is MPEG data signal normal?
Is error signal normal?
Is MPEG data signal normal?
Is Clock normal?
Does the audio
signal output from MPEG
decoder?
Does the
Video of the video
CD play properly?
Does the audio sound
output normally?
END
Check power & clock.
Check CD/DVD DSP output
signal.
Check MPEG Decoder input
signal.
Check CD/DVD DSP output
signal.
Check MPEG Decoder input
signal.
Check CD/DVD DSP output
signal.
Check MPEG Decoder input
signal.
Check clock signal
Check clock signal
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
OK
OK
OK
OK
NO
NO
NO
NO
NO
OPTION
If included VCD function.