36
SC-57
1
2
3
4
A
B
C
D
E
F
1
2
3
4
BT in
(Other Analog OK)
Tuner
(Other Analog OK)
Sirius in
(Other Analog OK)
USB in
(Other Digital OK)
Front HDMI in
Rec out no output
(PreOUT is OK)
Same input Function?
It is specification.
Yes
No
Rear HDMI in
output
Diagnose FRONT HDMI USB ASSY
(arround IC8003)
or replace FRONT HDMI USB ASSY or
HDMI Cable from Front HDMI USB ASSY
Yes
No
Check DIGITAL MAIN
ASSY CN1501
2,3 pin Digital Signal
Diagnose FRONT HDMI USB ASSY
(arround IC8101,IC8102,JA8101,CN8101)
or replace FRONT HDMI USB ASSY
Diagnose or replace
DIGITAL MAIN ASSY
AUDIO ASSY CN3902
7,9pin Signal
AUDIO ASSY CN3902
8pin +5V
Yes
No
Yes
Replace TUNER MODULE
No
A-DAC BRIDGE ASSY
CN3791,3792
12,14pin Signal
Yes
No
D-DAC BRIDGE ASSY
CN3785 1,3pin Signal
Yes
No
Diagnose DIGITAL MAIN ASSY
(arround IC1505,
audio signal JA1501
CN9002)
or replace DIGITAL MAIN ASSY
FRONT HDMI USB ASSY
JP8101 1pin +13V
Yes
No
USB RECT ASSY
FU10 Open
Replace FU10
Yes
No
Repair or replace
USB RECT ASSY
Yes
No
H.M.G. in
(Other Digital OK)
Check the audio signal in AUDIO ASSY
(IC2501 71,72pin
JA2504 DVR OUT terminal)
or replace AUDIO ASSY
Check the audio signal in AUDIO ASSY
(CN3902 7,9pin
IC2501)
or replace AUDIO ASSY
Diagnose AUDIO ASSY
(circuits arround Q3901)
or replace AUDIO ASSY
Check the audio signal in AUDIO ASSY
(CN3001 12,14pin
IC2501)
or replace AUDIO ASSY
Check the audio signal in DAC HIGH ASSY
(JA2101 5,8pin
CN2101 24,25pin)
or replace DAC HIGH ASSY
Check the audio signal in AUDIO ASSY
(CN2501 1,3pin
IC2501)
or replace AUDIO ASSY
Diagnose or replace
DIGITAL MAIN ASSY
Diagnose DIGITAL MAIN ASSY
(arround IC9204,IC9203)
or replace DIGITAL MAIN ASSY
Phono in
(Other Analog OK)
Diagnose AUDIO ASSY
(circuits arround IC2661)
or replace AUDIO ASSY
Multi ch
(Other Analog ,
Digital Multi ch OK)
Check the signal path
MULCH CH IN ASSY
MCH BRIDGE ASSY
AUDIO ASSY
OK
NG
Repair or replace NG point
Check the audio signal in AUDIO ASSY
(CN2510
IC2501)
or replace AUDIO ASSY
B
