Sunday, September 29, 2013

RPTV_HITACHI_51/57UWX20B_51/57GWX20B - HOW TO DISASSEMBLE - SCREEN FRAME&LIGHTBOX


The following instructions are for models with lightbox design. The new cabinet design will enable to remove the light box assembly, without taking complete PTV out for service.
Remove the Front Speaker Grille.
Pull the Speaker Grille off by placing your hand behind the outside corners and pulling straight out.
The bottom picture shows the TV after the Speaker Grille has been removed.
Remove the screws on the left bottom corner of the screen frame.

Remove the screws on the right bottom corner of the screen frame.
Remove the screen assembly by placing your hands on corners and lifting up to unhook from the cabinet.
Use additional help when necessary.
Carefully store Screen Frame Assembly.
After taking off the screen assembly, the cabinet light cavity will be exposed.
Remove the 4 screws on the left of the CRT Lens assembly.
Remove the 4 screws on the right of the CRT Lens assembly.
Now move to the back of the PTV. The lower rear board must be removed.
Remove 14 screws to remove the lower rear board.
Now, move to the chassis area on the back of the TV.
Remove the 3 screws to the right of the chassis as shown.
Remove one screw on the left of the chassis as shown.
Remove the screw on the right corner of the light box.
Remove the screw on the left corner of the light box.
Remove the screws on the front that hold the light box.
The picture shows the right side.
Remove the screws on the front that hold the light box.
The picture shows the left side.
Remove the control panel.
Remove the board on top of the light box assembly.
Lift the Light box in the center and slide backwards until it is out. Use additional help if necessary.
The Light Box is now ready for easy transport to a designated service and repair facility.