Philips 20PT643F Service Manual page 23

Front Interface Assembly/Board (if present)
Figure: Front interface removal
1. You can remove the complete module from the bottom plate, by pulling the two
clamps upward [1[ while sliding the module away from the CRT [2].
2. Release the 2 clamps [3] at the side of the bracket, and lift the board out of the
bracket (it hinges at one side).