Sony KDE-50XBR950 / KDE-P50MRX1 / KE-50MR2 / KE-P50MRX1 Service Manual ▷ View online
14
Many Lines
Data Grid Open
Damaged data grid in panel
EX) Sulfur, scratch
EX) Sulfur, scratch
CHECK POINT
The surface condition of panel grid.
The surface condition of panel grid.
REWORK
We can not rework this.
We can not rework this.
Vertical
15
Black Block
TCP Broken
Data Relay Board
The buffer IC is not working on signal
lines.
The connector on data relay board is
opened by the cracking of solder.
lines.
The connector on data relay board is
opened by the cracking of solder.
CHECK POINT
The surface of TCP is damaged.
The surface of TCP is damaged.
CHECK POINT
Input signal condition.
Input signal condition.
TCP is not working.
REWORK
We can not rework this.
We can not rework this.
REWORK
Change the data relay board.
Change the data relay board.
Vertical
17
Single Line
The output of Scan IC
Scan Relay Board
Mis-contact between FPC and the
connector of scan relay board.
connector of scan relay board.
CHECK POINT
One line is no-lighting or lighting at
white signal.
One line is no-lighting or lighting at
white signal.
CHECK POINT
The output of scan IC.
Reconnection.
The output of scan IC.
Reconnection.
The output of scan IC is fixed at low
level or high level.
This line is very clear and constant.
level or high level.
This line is very clear and constant.
REWORK
Change the scan relay
board.
Change the scan relay
board.
REWORK
Reconnect the FPC.
Reconnect the FPC.
Horizontal
18
Two Lines
Scan Relay Board
CHECK POINT
FPC insert shifting.
Foreign material in connector.
The lead of scan IC.
FPC insert shifting.
Foreign material in connector.
The lead of scan IC.
The output of scan IC are shortage.
This line is not clear and not
constant.
This line is not clear and not
constant.
REWORK
Clean in the connector.
Reconnect the FPC.
Change the scan relay
board.
Clean in the connector.
Reconnect the FPC.
Change the scan relay
board.
Horizontal
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