3-2
ELECTRICAL TROUBLESHOOTING GUIDE
1. Power check flow
No 3.4VA.
No 3.4VA
Is 3.4VA section working?
Is 3.4V present at emitter
of Q121?
Replace Q121.
Replace IC101.
Is there a DC voltage at
Cathode of D105 or D107?
Check FR101
No 5V
Is 3.4VA section working?
Replace Q126.
Is 5.6V present at collector
of Q126?
NO
NO
YES
YES
YES
Check D105/D106/D107/
D108 and replace.
YES
YES
A.
B.
NO
NO
NO
Summary of Contents for DVB611
Page 26: ...3 15 FIG 7 2 DVD FIG 7 3 CD FACT FACT FE FE SBAD SBAD...
Page 27: ...3 16 FIG 7 4 CD 8 FOCUS ON WAVEFORM FIG 8 1 DVD FE FOSO FACT FACT FACT FE SBAD...
Page 33: ...3 22 2 Audio Related Signal FIG 14 2 AOUT0 ABCK ALRCLK...
Page 39: ......
Page 41: ...3 30 3 31 2 SYSTEM CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 42: ...3 32 3 33 A B C D E F G H I J K L M N O P Q R S T 3 SERVO CIRCUIT DIAGRAM...
Page 43: ...3 34 3 35 4 AV JACK CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 44: ...3 36 3 37 5 TIMER CIRCUIT DIAGRAM 3 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T...
Page 45: ...3 38 3 39 6 TIMER CIRCUIT DIAGRAM 4 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T...
Page 46: ...3 40 3 41 7 TIMER CIRCUIT DIAGRAM 6 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T...
Page 47: ...3 42 3 43 8 TIMER CIRCUIT DIAGRAM 7 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T...
Page 48: ...3 44 3 45 9 TIMER CIRCUIT DIAGRAM 8 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T...
Page 50: ...3 48 3 49 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW BOTTOM VIEW...
Page 51: ...3 50 3 51 2 KEY P C BOARD LOCATION GUIDE 3 TIMER P C BOARD TOP VIEW LOCATION GUIDE BOTTOM VIEW...
Page 52: ...3 52 3 53 4 SMPS P C BOARD 360mm ONLY 5 SMPS P C BOARD 430mm ONLY LOCATION GUIDE...
Page 53: ......
