Sony SLV-D990PB / SLV-D990PE / SLV-D990PR / SLV-D995PE Service Manual ▷ View online
7-15
No Tray open/close
DIC1-80 is Open ; "L" ?
Close ; "H" ? DIC1-77 is Open : "H"?
Close : "L"?
Check DRIC1-14, 15
output at
OPEN
/CLOSE
Check signal line state from
DRIC1-14, 15 to tray motor.
Check DIC1 perpheral circuit.
Check DRIC1 perpheral circuit
and DCON1 connector.
Yes
Yes
No
No
(OPEN Waveform)
(DVD Section)
CD/VCD/DVD L/R output error
(Mixed Audio output)
Normal
ADOUT
is
input in AIC2-2?
CHECK
AIC2-7, 8pin output is
normal?
Check PCB peripheral
Pattern shot.
Check DIC1-172 output.
Check DIC1-166
(CD/VCD ; 16.9344MHz,
DVD ; 18.432MHz)
Yes
Yes
No
No
AIC4-1, 7 output
is normal?
Check AIC4 peripheral circuit.
Yes
No
Base terminal level
of AQ3, AQ6
are "L"?
Check VCR-MICOM mute
Yes
No
(ADOUT Waveform)
(Vout Waveform)
(DVD Section)
7-16
S-Video output error
VIC1-28, 31 output
is normal?
Check the circuit of DIC1, VIC1
No
S-JACK output
is normal?
Check the connection between
VIC1 and S-JACK
Yes
No
Yes
Check the connection of s-video cable
(DVD Section)
Y/Pr/Pb output error
VIC1-21, 23, 25pin
output is normal?
Check the circuit DIC1 and VIC1
No
JACK1 output level
is normal?
Check the connection between
VIC1 and JACK1
Yes
No
Yes
Check the connection component cable
(DVD Section)
7-17
CVBS output error
IC801-4
Output is normal?
JK801
Output is normal?
Check the connection between
DVD part and VCR part.
Check the connection between
IC801 and JK801.
Yes
No
No
Yes
VIC1-33
Output is normal?
Check the circuit of DIC1, VIC1.
Yes
No
Check the connection of
CVBS cable.
7-18E
MEMO