32
TROUBLESHOOTING
No Analog Audio output
Is Digital Data transmitted from CPU and
Flash?
YES
NO
NO
NO
YES
YES
Is Digital Audio Data transmitted to MPEG
Decoder IC pin #130-141?
Is there Audio signal from P481 pin
#2-16?
Check Analog B/D
Check Flash Memory and CPU
IC
Check MPEG Decoder IC
Check FFC CABLE connected
to P481
5. MPEG B/D
No LOGO display
Is Power supplied?
YES
NO
NO
NO
YES
YES
Does Oscillation Device oscillate?
Is Digital Data transmitted from CPU
and Flash?
Check SDRAM IC
After checking Power_On_L Signal at
P505 pin#8, check CPU IC
Check OS500,OS401
Check Flash Memory and CPU IC
NO
YES
Is Digital Data transmitted to SDRAM
from MPEG Decoder IC?
Check MPEG Decoder IC
All manuals and user guides at all-guides.com
Summary of Contents for DQD-21OOD
Page 6: ...5 CIRCUIT DIAGRAM VIDEO All manuals and user guides at all guides com a l l g u i d e s c o m...
Page 7: ...6 CIRCUIT DIAGRAM AUDIO All manuals and user guides at all guides com...
Page 8: ...7 CIRCUIT DIAGRAM VFD JOG All manuals and user guides at all guides com...
Page 9: ...8 CIRCUIT DIAGRAM ETC All manuals and user guides at all guides com...
Page 10: ...9 CIRCUIT DIAGRAM VCR_INT DVD All manuals and user guides at all guides com...
Page 12: ...11 CIRCUIT DIAGRAM CPU ZR36703 DVD All manuals and user guides at all guides com...
Page 13: ...12 CIRCUIT DIAGRAM MPEG DECODER All manuals and user guides at all guides com...
Page 48: ...47 DISASSEMBLY All manuals and user guides at all guides com...
Page 49: ...48 DISASSEMBLY All manuals and user guides at all guides com...
Page 50: ...49 DISASSEMBLY All manuals and user guides at all guides com...
Page 51: ...50 DISASSEMBLY All manuals and user guides at all guides com a l l g u i d e s c o m...
