29
TROUBLESHOOTING
No AUDIO output from
COAXIAL JACK(JK302)
RECEIVER is on COAXIAL
MODE?
Check IC 306
Check FFC CABLE connected to P205 and
MPEG Decoder IC pin #133
YES
YES
NO
NO
AUDIO DIGITAL signal at P205
pin #1?
AUDIO DIGITAL signal at IC306 pin
#1,2,3,4,5,6,8,9,10,11,12,13?
Change RECEIVER setting
No AUDIO output from
OPTICAL JACK(JK303)
Is RECEIVER on OPTICAL
MODE?
AUDIO DIGITAL signal at P205
pin #1?
Change RECEIVER setting
Check POWER circuit and +5V
LINE
YES
YES
NO
NO
NO
+5V obtained at JK303 center
pin?
Check OPTICAL JACK(JK303)
Check FFC CABLE connected to P205 and
MPEG Decoder IC pin #133
YES
YES
YES
✓
Caution
In case of COAXIAL and OPTICAL, check connection with receiver first before the circuit test.
B. Digital OUT
YES
+5V obtained at IC306 pin #14?
Check POWER circuit and +5V
LINE
NO
Check COAXIAL JACK
Check D320, D321
YES
NO Problem
NO
Summary of Contents for DQD-2100D
Page 5: ...4 CIRCUIT DIAGRAM POWER SUPPLY SCHEMATIC DIAGRAM DQD 6100 220V ...
Page 6: ...5 CIRCUIT DIAGRAM VIDEO ...
Page 7: ...6 CIRCUIT DIAGRAM AUDIO ...
Page 8: ...7 CIRCUIT DIAGRAM VFD JOG ...
Page 9: ...8 CIRCUIT DIAGRAM ETC ...
Page 10: ...9 CIRCUIT DIAGRAM VCR_INT DVD ...
Page 11: ...10 CIRCUIT DIAGRAM ATAPI DVD ...
Page 12: ...11 CIRCUIT DIAGRAM CPU ZR36703 DVD ...
Page 13: ...12 CIRCUIT DIAGRAM MPEG DECODER ...
Page 46: ...45 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW ...
Page 47: ...46 JOG COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW M P E G ...
Page 48: ...47 DISASSEMBLY ...
Page 49: ...48 DISASSEMBLY ...
Page 50: ...49 DISASSEMBLY ...
Page 51: ...50 DISASSEMBLY ...