Lcd Monitor And Backlight Replacement; Backlight Replacement - Sony BVW-55 Maintenance Manual

4-17. LCD Monitor and Backlight Replacement

4-17-1. Backlight Replacement

4-17. LCD Monitor and Backlight Replacement
4-17-1. Backlight Replacement
Outline
Replacement
DP-300 board removal
Backlights removal
Backlights installation
DP-300 board installation
Precaution
The two backlights are located on the top and bottom at the back side of the LCD
monitor. If either top or bottom of the backlight is turned off because of it reaches at
the end of its useful life, it is recommended to replace both backlights at the same
time.
Preparations
1. Turn off the power.
2. Remove the display panel cover. (Refer to Section 3-1-6.)
Tools
. Torque screwdriver (3 kg.cm):
. Torque screwdriver bit (for M1.4):
. Torque screwdriver bit (for M2):
Replacement
1. DP-300 board removal
(1) Disconnect the harness connector connected
to CN6 on the DP-300 board.
(2) Remove the four screws shown in the figure.
(3) Disconnect the connector CN7 connected to
the CN-1541 board below the DP-300 board
to lift the DP-300 board out.
4-54
J-6325-400-A
J-6325-110-A
J-6325-380-A
DP-300 board
CN7
B2 x 4
CN-1541 board
B2 x 4
CN6
BVW-55 P2