Pioneer SC-95 Service Manual page 22

1
NO FL DISPLAY
This is just for general reference and does not including every single case.
A
No FL DISPLAY
Yes
Dimmer ?
No
Check DISPLAY ASSY
JP6001 6,7pin 4.3Vac
B
Yes
Check DISPLAY ASSY
JP6001 5pin -30V (VF)
4pin +5V
Yes
Check DISPLAY ASSY
V6001(FL Display)
1,62pin 4.3Vac
C
Yes
Check DISPLAY ASSY
IC6003(FL uCOM)
56 pin +5.0V (V+5_V),
52 pin +5.0V (XFLRST)
Yes
Check DISPLAY ASSY
IC6003(FL uCOM)
51 pin oscillating (2 MHz)
D
Yes
Check DISPLAY ASSY
V6001(FL Display)
damage
Yes
Replace V6001
(FL Display)
E
F
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1
2
"FL OFF"LED light on ?
No
Check the path of FL AC1 and AC2

DISPLAY ASSY V-REG_S ASSY
No
Check the path of V+5_V,-VF
(Signal path is same as FL AC1 and AC2)
No
Check the power supply path of FL AC1
and AC2 or replace DISPLAY ASSY
No
Check the path of V+5_V or XFLRST
or replace DISPLAY ASSY
No
Replace IC6003
or DISPLAY ASSY
No
Diagnose around IC6003
No Problem
2
3
Diagnose the circuits
No
(around D6010)
or replace DISPLAY ASSY

MAIN TRANS
Other results
Other results
NG
Replace IC6003
or DISPLAY ASSY
Replace V6001(FL Display)
or DISPLAY ASSY
SC-95
3
4
Replace MAIN TRANS
All NG
Diagnose or replace
NG ASSY
All NG Diagnose VREG CHILD_S
ASSY
(around IC8701:V+5_V) and
V-REG_S ASSY (around
D7563, D7564:-VF)
Replace VREG CHILD_S ASSY
or replace V -REG_S ASSY
4