D
C
YES
NO
YES
YES
NO
NO
Does spindle rotate?
Proper SPWM signal on
CXD1885Q
Check SPWM related
circuit on CXD1885Q.
SP+ & SP- output
properly?
Check the spindle control
amp circuit of motor
driver.
Check the cable connection
between spindle and main PCBA.
YES
YES
NO
NO
Laser turns on when
reading disc?
NO
NO
YES
NO
YES
YES
NO
DVDLD or CDLD
output properly?
Check the laser power circuit
on CXD1881 and connecting to
power transistor.
Collector voltage of
power transistor is OK?
Check the related circuit on
laser power transistor
Check cable connection between
transistor ouput and pick-up
head.
f
f
o
r
e
s
a
L
?
n
i
c
s
i
d
t
u
P
Disc ID is correct?
Proper RFSIN signal
on CXD1881?
Check the related circuit
on CXD1881 RFSIN signal.
Check DVDLD & CDLD signal
YES
3-7
Summary of Contents for M5 C/AH
Page 21: ...2 SDRAM CLOCK FIG 2 1 3 TRAY OPEN CLOSE SIGNAL CH1 EJ CH2 EJ FIG 3 1 3 11...
Page 23: ...5 LENS CONTROL RELATED SIGNAL NO DISC CONDITION LDON FIG 5 1 CH1 DVD_LD CH2 CD_LD FIG 5 2 3 13...
Page 25: ...7 SPINDLE CONTROL WAVEFORM CH1 SPWM2 CH2 SPWM1 FIG 7 1 DVD CH1 SPWM2 CH2 SPWM1 FIG 7 2 CD 3 15...
Page 26: ...8 FOCUS ON WAVEFORM FSCON FIG 8 1 CD FIG 8 2 SACD 3 16...
Page 27: ...9 RF WAVEFORM 6 10 ES6168F AUDIO OPTICAL AND COAXIAL OUTPUT SPDIF 3 17...
Page 49: ......