3-14
MAIN ELECTRICAL TROUBLESHOOTING GUIDE
2. MPEG CIRCUIT
Power is on
END
YES
YES
YES
OK
Check power & clock.
Does Logo appear
on the screen?
NO
Check CD/DVD DSP
output signal.
Check MPEG Decoder
input signal.
NO
OK
Does the
Video of the DVD Disc
play properly?
Is MPEG data
signal normal?
NO
YES
Check CD/DVD DSP
output signal.
Check MPEG Decoder
input signal.
NO
Is error
signal normal?
YES
OK
Check CD/DVD DSP
output signal.
Check MPEG Decoder
input signal.
NO
Does the
Video of the video CD
play properly?
Is MPEG data
signal normal?
NO
Check clock signal
NO
Does
the audio sound output
normally?
Does the audio
signal output from MPEG
decoder?
NO
Check clock signal
NO
Is Clock normal?
YES
YES
YES
YES
OPTION
If included VCD function.
Summary of Contents for DP270B
Page 15: ...3 6 MEMO ...
Page 17: ...3 9 3 10 PRINTED CIRCUIT DIAGRAM TOP VIEW BOTTOM VIEW MEMO ...
Page 34: ...3 27 2 WIRING CONNECTION DIAGRAM 2 MAIN PCB KEY PCB MAIN PCB Key PCB ...
Page 51: ...3 55 3 56 1 MAIN P C BOARD TOP VIEW PRINTED CIRCUIT DIAGRAMS ...
