Sony KDE-50XBR950 / KDE-P50MRX1 / KE-50MR2 / KE-P50MRX1 Service Manual ▷ View online
11
Abnormal
screen
High Voltage Circuit Broken
CHECK POINT
fuse on board, Vbw or Vsw line on
board.
fuse on board, Vbw or Vsw line on
board.
Next parts will be broken, Vbw line
on Scan Board, Vsw line on
Common Board, (High Voltage
Board).
on Scan Board, Vsw line on
Common Board, (High Voltage
Board).
REWORK
Change the scan or common
board (High voltage board).
Change the scan or common
board (High voltage board).
No Picture
12
Single Line
The output of TCP
Data Grid Open
Damaged data grid in panel
EX) Sulfur, scratch
EX) Sulfur, scratch
CHECK POINT
One line is no-lighting or lighting at
any pure color signal (red, green
blue and black)
One line is no-lighting or lighting at
any pure color signal (red, green
blue and black)
CHECK POINT
The surface condition of panel grid.
The surface condition of panel grid.
The output of TCP 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
We can not rework this.
We can not rework this.
REWORK
We can not rework this.
We can not rework this.
Vertical
13
Two Lines
The output of TCP
Data Grid Shortage
The grids of panel are shortage due
to foreign material.
to foreign material.
CHECK POINT
Two lines are lighting at two colors.
Two lines are lighting at two colors.
CHECK POINT
The surface condition of panel grid.
The surface condition of panel grid.
The closed outputs of TCP are
Shortage.
Shortage.
REWORK
We can not rework this.
We can not rework this.
REWORK
We can not rework this.
We can not rework this.
Vertical
16
Zebra Block
Data Relay Board
The lead of the buffer IC or the
connector on data relay board are
shortage by foreign material.
connector on data relay board are
shortage by foreign material.
CHECK POINT
Input signal condition.
Input signal condition.
REWORK
Change the data relay board.
Change the data relay board.
Many Blocks
Data Relay Board
The lead of the buffer IC or the
connector on data relay board are
shortage by foreign material.
connector on data relay board are
shortage by foreign material.
CHECK POINT
Input signal condition.
Input signal condition.
REWORK
Change the data relay board.
Change the data relay board.
Vertical
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