(No.YD119)1-19
NO
NO
YES
YES
Check the laser power circuit
on ZR36888 and connecting
to power transistor.
Check cable connection
between transistor output
and pick-up head.
NO
Laser off
NO
NO
YES
Check the related circuit
on ZR36888 RFL signal.
Check LD_DVD &
LD_CD signal
YES
YES
NO
NO
YES
Check SPINDLE_S related
circuit on ZR36888.
NO
YES
Check the spindle control
amp circuit of motor driver.
Check the cable connection
between spindle and main
PCBA.
YES
YES
Laser
turns on when reading
disc?
LD_DVD or
LD_CD output
properly?
NO
Check the related circuit on
laser power transistor
Collector
voltage of power transistor
is OK?
Put disc in?
Disc ID is correct?
Does
spindle rotate?
Proper
SPINDLE_S signal on
ZR36888
SP+ & SP- output
properly?
Proper RF signal
on ZR36888?
C
D
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 ...