Sony KDL-40Z4500 / KDL-46Z4500 / KDL-52Z4500 (serv.man3) Service Manual ▷ View online
– 8 –
KDL-40, 46, 52 Z4500
RM-GD005
SECTION 3
TROUBLESHOOTING
Trouble
YES
Set Power
NO
See
1. No Power
Chart [B]
See
2. Standby LED Error
Dispaly (2-6)
See
4. Audio Problem
Chart [C]
See
5. Video problem
Chart [D]
Audio
Video
Red blinks
LED
Green
– 9 –
KDL-40, 46, 52 Z4500
RM-GD005
3-1. No Power
Flow Chart [B]
3.3Vdc
CN6401 #3
on BGA
NO
Power board
(No STBY 3.3V)
YES
NO
207 ~ 253Vac
Inlet on Power
board
Inlet on Power
board
YES
AC cable or AC inlet
No Power
(No relay clicks)
YES
Does Power
button work?
button work?
NO
Switch Unit
BGA board
– 10 –
KDL-40, 46, 52 Z4500
RM-GD005
3-2. Audio Problem
Flow Chart [C]
Audio
pr
ob
le
m
Onl
y
Spe
ak
e
r
out
?
YE
S
NO
UI
s
etti
n
g
co
rrec
t?
Vol
u
m
e,
S
P
of
f/
O
n
HP
Lin
k
Anal
og
Channe
l
Pr
o
b
le
m?
Digital
Channe
l
Pr
o
b
le
m?
HDM
I
Pr
o
b
le
m?
Se
t
correct
ly
o
r
reset
b
y
m
en
u
.
Ch
eck
S
p
eak
e
r
or
B
G
A
b
oar
d
NO
YE
S
NO
NO
Ch
eck
BG
A
b
oar
d
Ch
eck
BG
A boar
d
Ch
eck
BG
A boar
d
YE
S
YE
S
YE
S
NO
Ch
eck
BG
A boar
d
Here is trouble shooting flow related audio
– 11 –
KDL-40, 46, 52 Z4500
RM-GD005
3-3. Video Problem
Flow Chart [D]
Video
pr
ob
le
m
Al
l
inputs
have
pr
ob
le
m
?
YE
S
NO
Anal
og
Channe
l
Pr
o
b
le
m?
Digital
Channe
l
Pr
o
b
le
m?
HDM
I
Pr
o
b
le
m?
Ch
eck
LVDS
h
a
rn
es
s
Po
w
e
r
b
oa
rd
s
BG
A
b
oar
d
Pa
n
e
l
Mo
dul
e
NO
NO
Ch
eck
BG
A
b
oar
d
Ch
eck
BG
A boar
d
Ch
eck
BG
A boar
d
YE
S
YE
S
YE
S
NO
Ch
eck
BG
A boar
d
NO
Ch
eck
BG
Aboar
d
YE
S
YE
S
Ba
ck
L
ig
h
t
tur
n
on?
OSD
appear
?
NO
Ch
eck
LVDS
h
a
rn
es
s
BG
A boar
d
Pa
n
e
l
Mo
dul
e
Here is trouble shooting flow related Video
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