Read Sony KDL-70X4500 (serv.man3) Service Manual online
KDL-70X4500 (K) 2-10
2-2-5. VIDEO PROBLOM (Chart E)
Here is trouble shooting flow related Video
Video
problem
problem
All inputs
have
problem?
have
problem?
YES
NO
Digital
/Analog
Channel
Problem ?
Component
Problem?
Problem?
HDMI
Problem ?
Problem ?
Check
LVDS harness
G8/G9 boards
FBU board
Panel Module
CF1 board
LVDS harness
G8/G9 boards
FBU board
Panel Module
CF1 board
NO
NO
Check
FBU board
AU board
Joint connector
FBU board
AU board
Joint connector
Check
FBU board
AU board
Joint connector
FBU board
AU board
Joint connector
Check
FBU board
AU board
Joint connector
FBU board
AU board
Joint connector
YES
YES
YES
NO
NO
Check
FBU board
FBU board
YES
YES
Back Light
turn on?
turn on?
OSD
appear ?
appear ?
NO
Check
LVDS harness
FBU board
CF1 board
LVDS harness
FBU board
CF1 board
VCBS
Problem?
Problem?
Check
AU board
AU board
YES
Click on the first or last page to see other KDL-70X4500 (serv.man3) service manuals if exist.