Panel Distortion Diagrams - Sony PFM42V1 Triage & Troubleshooting Manual

Panel Distortion Diagrams

YDT
Board
&
Drive
ICs
Ysus
Scan
Board
YDB
Board
&
Drive
ICs
XL address Brd
YDT
Board
&
Drive
ICs
Ysus
Scan
Board
YDB
Board
&
Drive
ICs
XL address Brd
YDT
Board
&
Drive
ICs
Ysus
Scan
Board
YDB
Board
&
Drive
ICs
XL address Brd
PDP-04
1
YDB boards . Check Flex Cable between YDB and
Panel Assembly for physical damge .
Zsus
Scan
Board
Replace YDB board (connections & Flex Cable OK)
Replace Panel Assembly (Flex Cable NG)
XC address Brd XR address Brd
Zsus
Scan
Board
XC address Brd XR address Brd
Zsus
Scan
Board
XC address Brd XR address Brd
No Video (Horizontal Black Bar) lower ½ of screen
st
– Confirm secure connections between YDT and
No Video (Horizontal Black Bar) upper ½ of screen
st
1 – Confirm secure connections between Ysus
and YDT boards . Check Flex Cable between YDT
and Panel Assembly for physical damge .
Replace YDT board (connections & Flex Cable OK )
Replace Panel Assembly (Flex Cable NG)
No Video (Vertical Black Bar ) 1/3 of screen
st
1 – Confirm secure connections
between XL and Control Boards .
FWD50PX2 Troubleshooting
nd rd
2 – Confirm 5V and VA 3 – Replace boards in the
voltages to XL board . following order .
A) Replace XL-Board
B) Replace Control Board
47