10
VSX-530-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
N
o FL DISPLAY
Are the voltage 2.3
V
ac to 2.5
V
ac?
(FRO
N
T Assy CP703 pins 1, 3)
This is just for general reference and does not including every single case.
Yes
N
o
N
o
N
o
N
o
N
o
N
o
N
o
Replace Power transformer.
Replace FLT701 or
replace FRO
N
T Assy.
Check Q17, R64, R65, R66, D23,
ZD24, ZD25 on MAI
N
Assy
or replace MAI
N
Assy.
Check FLT701, R779, R780 or
replace FRO
N
T Assy.
Yes
Check L701, IC701 or
replace FRO
N
T Assy.
N
o
N
o
Check Q702, Q703, R777, R778 or
replace FRO
N
T Assy.
Replace CP16.
N
o
Is the voltage -30
V
?
(FRO
N
T Assy C728 - side)
Is the voltage 3.3
V
?
(FRO
N
T Assy C730 + side)
Are the voltage 2.28
V
ac?
(FRO
N
T Assy FLT701
pins 1, 2, 38, 39)
Are the voltage -30
V
?
(FRO
N
T Assy C
N
704A
pins 3, 4)
Are the voltage -30
V
?
(CPU Assy C
N
704B
pins 3, 4)
Are the voltage -30
V
?
(CPU Assy C
N
209A
pins 21, 22)
Are the voltage -30
V
?
(MAI
N
Assy CP16
pins 21, 22)
Is the voltage 2.27
V
ac
to 2.28
V
ac?
(Transformer orange wire)
Yes
Replace FFC.
Replace FRO
N
T Assy.
Replace FLT701.
Yes
Yes
Is damage in FLT701?
Yes
Yes
Replace C
N
209A or
replace CPU Assy.
Yes
Yes
N
o
No FL DISPLAY
