1-14 (No.YD119)
SECTION 5
TROUBLESHOOTING
5.1
ELECTRICAL TROUBLESHOOTING GUIDE
5.1.1 POWER CHECK FLOW
Is 5.6V present at
collector of Q126?
No 3.3VA
YES
YES
YES
YES
No 5V
No 3.3VA
Replace Q126.
Check FR101
Replace Q121.
YES
Is there a DC voltage at
cathode of D105 or D107?
YES
NO
NO
NO
NO
Replace IC101.
A.
B.
Check D105/D106/D107/
D108 and replace.
Is 3.3VA
section working?
Is 3.3VA
section working?
Is 3.3V
present at emitter
of Q121?
Содержание XV-N650BEK
Страница 27: ... No YD119 1 27 Fig 7 2 DVD Fig 7 3 CD Fig 7 4 CD 2 FACT FE SBAD 2 FACT FE SBAD 2 FACT FE SBAD 2 ...
Страница 29: ... No YD119 1 29 5 2 9 SPINDLE CONTROL WAVEFORM NO DISC CONDITION Fig 9 1 DVD SPINDLE_S SP SP 1 2 3 1 2 3 IC201 ...
Страница 36: ......
Страница 42: ...A 1 2 3 4 5 B C D E F G System MPEG section SHEET 2 2 11 2 12 ...
Страница 43: ...A 1 2 3 4 5 B C D E F G Servo control section SHEET 3 2 13 2 14 ...
Страница 44: ...A 1 2 3 4 5 B C D E F G AV Jack section SHEET 4 2 15 2 16 ...
Страница 45: ...A 1 2 3 4 5 B C D E F G Timer Key control section SHEET 5 2 17 2 18 ...
Страница 47: ...A 1 2 3 4 5 B C D E F G Top view Bottom view Printed circuit boards Main board 01 2 21 2 22 ...
Страница 49: ...A 1 2 3 4 5 B C D 2 25 Top view Bottom view Key board 01 Top view Bottom view SCART board 01 ...