Panel Distortion Diagrams - Sony PFM42V1 Triage & Troubleshooting Manual

Panel Distortion Diagrams

Board
Board
Board
PDP-04
YDT
Board
&
Drive
ICs
Ysus
Scan
YDB
Board
&
Drive
ICs
XR address Board
Control Board &
XL address Board
YDT
Board
&
Drive
ICs
Ysus
Scan
YDB
Board
&
Drive
ICs
XR address Board
Control Board &
XL address Board
YDT
Board
&
Drive
ICs
Ysus
Scan
YDB
Board
&
Drive
ICs
XR address Board
Control Board &
XL address Board
No Video (Horizontal Black Bar) lower 1/2 of screen
st
1 – Confirm secure connections between Ysus and
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)
No Video (Horizontal Black Bar) upper 1/2 of screen
st
1 – Confirm secure connections between Ysus and
YDT boards . Check Flex Cable between YDT and
Panel Assembly for physical damge .
Zsus
Scan
Board
Replace YDT board (connections & Flex Cable OK )
Replace Panel Assembly (Flex Cable NG)
No Video (Vertical Black Bar ) 1/2 of screen
st
1 – Confirm secure connections between Control /XL
Board and the Panel Assembly .
Zsus
Scan
Replace Control /XL Board (connections & Flex Cable OK)
Board
Replace Panel Assembly (Flex Cable NG)
PFM42V1 Troubleshooting
11