Read Sony KDL-70X4500 (serv.man3) Service Manual online
KDL-70X4500 (K) 2-1
SECTION 2
TROUBLESHOOTING
2-1. TRIAGE CHART
Reference
Symptoms - (dead set)
Video - distorted or missing
2
5
6
7
8
9
13
No Video
No Video
No Video
No Tuner
Blinks
Blinks
Blinks
Blinks
Blinks
Blinks
Blinks
No Power
BL OK
No BL
BL OK
Video OK
No HDMI No Audio
OSD OK
No OSD
AU Board
FBU Board
CF1 Board
G8/G9 Board
F2 Board
Panel Module
LVDS cable between FBU Board
and CB1 Board
Joint connector of AU Board and
FBU Board
Flowchart Reference
FBU Board
CF1 Board
G8/G9 Board
F2 Board
Panel Module
LVDS cable between FBU Board
and CB1 Board
Joint connector of AU Board and
FBU Board
Flowchart Reference
C
C
C
C
C
C
C
B
E
E
E
E
E
D
Problem
Low B+ T-CON
BL
Temp
Audio
FAN
Balancer
: Doubtful part
: just a few possibility
: just a few possibility
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