Philips for Intel Socket 775 processor Service Manual page 14

EN 14 4. S/SD/HD 3.1 PDP
Photo 2 - 50" HDv3
1. 42" SDv3 - Remove the screws in order of 2-3-5-7-1-4-6 and
10-11-13-16-9-12-14 for HD from heat sink and then get rid
of heat sink. (Photo 1)
42" HDv3, S37" SDv4, 50" HDv3
- Remove the screws in order of Center - Left Side - Right
Side from heat sink and then get rid of heat sink. (Photo 1)
2. Remove the TPC, FFC and power cable from the connectors.
3. Remove all the screws from defected board.
4. Remove the defected board.
5. Replace the new board and then screw tightly.
6. Get rid of the foreign material from the connector.
7. Connect the TCP, FFC and power cable to the connector.
8. Reassemble the TCP heat sink.
9. 42" SDv3 - Screw in order of 4-1-7-6-5-3-2 and 12-9-15-14-
13-11-10 for HD. (Photo 2) 42" HDv3, S37" SDv4, 50" HDv3
- Screw in order of Right Side - Left Side - Center (Photo 2)
If you screw too tightly, it is possible to get damage on the
Driver IC of TCP.
4.1.5 Exchange YBU, YBL and YM board
1. Separate all the FPC connector of YBU (Y-Buffer upper)
and YBL (Lower). (Photo 1)
2. Separate all the connector of CN5001 and CN5008 from Y-
Main.
3. Loosen all the screws of YBU, YBL and YM.
4. Remove the board from chassis.
5. Remove the connector of CN5006 and CN5007 among
YBU, YBL and YM.
6. Remove the YBL and YBU from Y-main.
7. Replace the defected board.
Mechanical Instruction