Pioneer SC-LX85 Service Manual page 48

5
NO PICTURE
This is just for general reference and does not including every single case.
No Picure
Analog Video IN? DVC Setting ?
ON
DVCOFF
No problem
when DVC is OFF
DVCON, Check
COMPONENT ASSY
CN8301 Video Signals
Other Results
Diagnose or replace
HDMI in
DIGITAL MAIN ASSY
HDMI out?
Composite
(Component) in
HDMI out?
Is there any problem
at analog video IN?
(When DVC=ON)
GUI?
5
6
OFF iPod Video in
Composite out?
Composite in
Composite out or
zone2 Video out
Component in
Component out or
zone2 Component out?
There is problem
when DVC is OFF
Diagnose DIGITAL MAIN ASSY
(Analog video in/out circuits,
IN:OK,OUT:NG
arround IC909, arround IC101)
or replace DIGITAL MAIN ASSY
No
Yes
SC-57
6
7
Check MIC HP ASSY
Yes
Rear Composite in
MIC CONNECT ASSY
Composite out
COMPONENT ASSY
No
Conection
Diagnose COMPOSITE ASSY
Check
IN:NG,OUT:NG
(input circuits) or replace
COMPONENT ASSY
COMPOSITE ASSY
CN8303 Video Signals
IN:OK,OUT:NG IN:OK,OUT:OK
Diagnose COMPOSITE ASSY
(output circuits) or replace
COMPOSITE ASSY
Diagnose COMPONENT ASSY
(arround IC8301)
or replace COMPONENT ASSY
7
8
A
No Problem Diagnose or replace
MIC HP ASSY
Problem Replace or repair
Problem Point
B
C
D
E
F
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