Specifications

Mechanical Instructions
EN 20 SDI PDP 2K64.
4.1.11 Exchange YBU, YBL and YM board - 63” HD v4
1. Unplug power connector CN5010 and signal connector
CN5002 from Y-Main. See “Photo 1”.
2. Unplug all FPC connectors of YBU (Y-Buffer upper) and
YBL (Y-Buffer lower). See “Photo 1”.
3. Open the connectors CN5001/CN5406 between YM and
YBU, and CN5000/CN5506 between YM and YBL.
4. Loosen all the screws of YBU, YBL, and Y-Main.
5. Remove the boards from the chassis.
6. Open the connectors CN5410/CN5510 between YBU and
YBL.
7. Separate the YBL and YBU from Y-main.
8. Replace the defective board.
9. Re-assemble the YBU and YBL to the Y-Main.
10. Plug in the connectors between YBU, YBL and YM.
11. Arrange the board on the chassis and then screw to fix.
12. Reconnect the FPCs.
13. Supply the electric power to the module and then check the
waveform of the board.
14. Turn “OFF” the power after the waveform is adjusted.
Figure 4-25 Photo 1: Dis-assembly of YBU, YBL, and YM - 63” HD v4
G_16380_042.eps
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Make sure you open these
connectors before you
separate the boards !