Philips MG8 Service Manual page 15

4.4.3 Keyboard Control Board
1. Refer to next figure.
2. Unscrew two screws[1]
3. Unplug connector [2] and remove the board.
When defective, replace the whole unit
Figure 4-18 Keyboard control board
4.4.4 IR/LED Board and Speakers
1. Refer to next figure.
2. Remove the screws [1] and remove the IR/LED board.
3. Remove the screws [2] and remove the speakers.
When defective, replace the whole unit.
2
1 1
Figure 4-19 IR/LED Board and Speakers
1
2
1
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2 2 2
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Mechanical Instructions
4.4.5 Power Supply Board
Due to different set executions this chassis is supplied with one
or two power supply boards and figures may differ.
Caution: it is absolutely mandatory to remount all different
screws and cables at their original position during re-assembly.
Failure to do so may result in damaging the power supply.
1. Refer to next figure.
2. Unplug all the connectors [1].
3. Remove the fixation screws [2]
4. Remove the main power supply board.
5. Unplug all the connectors [3].
6. Remove the fixation screws [4]
7. Remove the stand-by power supply board.
2
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2
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Q522.2E LA
1
2
4
3
1
2
Figure 4-20 Power Supply Unit(s)
4. EN 15
3
4
4 4
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