Pioneer SC-95 Service Manual page 30

1
OTHER
This is just for general reference and does not including every single case.
A
12V Trig
12V Trig
Check INTERFACE_S ASSY
CN7011 or CN7012 18pin +12V
Diagnose INTERFACE_S ASSY
B
(Circuits around Q7008,Q7010)
or replace INTERFACE_S ASSY
RS-232C
RS-232C
Diagnose COMPONENT ASSY
(around IC8601)
or replace COMPONENT ASSY
C
Check the signal path of 232RX,232TX,232POW,232CDET
COMPONENT ASSY
and check the power supply path of V+5R6_EV
PRIMARY ASSY
IR
IR
D
No
Remote Control
No
Check the signal path of
RMC
DISPLAY ASSY
E
No Problem
Diagnose DISPLAY ASSY
(RMC signal path, around U6001,IC6001)
or replace DISPLAY ASSY
F
30
1
2
No
Check the power supply path of V+12_TRG
No
V-REG_S ASSYINTERFACE_S ASSY
Yes
Diagnose V-REG_S ASSY
(Circuits around IC7551)
or replace V-REG_S ASSY
No
Still NG

DIGITAL MAIN ASSY
 
DIGITAL MAIN ASSY
Diagnose INTERFACE_S ASSY(IR circuits)
Yes
or check the signal path of IR-IN
INTERFACE_S ASSY
or replace INTERFACE_S ASSY
Repair or replace
NG
NG point
2
3
ALL NG
 
V-REG_S ASSY DISPLAY ASSY(IC6001)
COMPONENT ASSY

V-REG_S ASSY
SC-95
3
4
Other results Repair or replace
NG point

DISPLAY ASSY
4