Mpeg Circuit - Aiwa XD-DV290K Service Manual

3. MPEG Circuit

Power is on
Does aiwa Logo appear
on the screen?
YES
Does the
moving picture of the DVD Disc
play on the screen
normally?
YES
Does the
moving picture of the video
CD play on the screen
normally?
YES
I OPTION
Does the
audio sound output
normally?
YES
END
NO
Check power & clock.
NO
YES
Is error signal normal?
NO
If included VCD function.
NO
sound output from MPEG
A
YES
Is MPEG data
signal normal?
YES
Is MPEG data
signal normal?
YES
Is Clock normal?
YES
Does the audio
decoder?
YES
52
NO Check CD/DVD DSP
output signal.
OK
OK
Check MPEG Decoder
input signal.
NO
Check CD/DVD DSP
output signal.
OK
Check MPEG Decoder
input signal.
NO
Check CD/DVD DSP
output signal.
OK
Check MPEG Decoder
input signal.
NO
Check clock signal
Check clock signal
B
C
D
E
F
G
H
I