KDL-52XBR4, KDL-52XBR5 - Sony TV Service Manual (repair manual). Page 18

CAUTION: 

Be sure to identify the inverter cover screws before proceeding. DO NOT remove the screws securing the plastic strip holding the lamp 
sockets.  

1   Remove screws securing the inverter cover.

2   Disconnect the 2 connectors from the board you are removing that connects the upper inverter board to the lower inverter board.

3   To remove the lower board, disconnect 1 connector.

To remove the upper board, disconnect 2 connectors.

INVERTER BOARD REMOVAL

Only remove the screws securing the inverter 

cover which may be metal or plastic. The 

remaining plastic strip contains sockets for the 

fluorescent backlights and should never be 

loosened. The backlights will pop out of the 

sockets and/or break the backlight requiring a 

LCD panel replacement. The example shown 

is a 32” model but applies to all models.

REMOVE 

CONNECTOR AND 

PULL BOARD TO 

THE RIGHT

BACKLIGHT

END VIEW

SOCKET

2

3

3

Plastic Strip
holding 
Lamp Socket

Left Lower Inverter Board

NOTE: The connector that attaches the Left Upper Inverter board
to the DF5 board has a strip of white tape at both ends of the connector.
The connector that attaches the Right Upper Inverter board
to the DF4 board has a strip of red tape at both ends of the connector.

DO NOT
REMOVE
BACKLIGHT
SCREWS

Left Upper Inverter Board

Inverter Cover

1

Plastic Strip
holding 
Lamp Socket