Mechanical Instructions - Philips EM5A P/M Service Manual

4. Mechanical Instructions

Index of this chapter:
1. Service Connector (for ComPair)
2. Set Disassembly
3. Service Positions
4. Assembly / Board Removal
5. Set Reassembly
Note: Figures below can deviate from the actual product, due
to different set designs.
4.1 Service Connector (for ComPair)
To perform service diagnostics with ComPair, it is not
necessary to disassemble the set. You simply have to connect
the ComPair interface box, with the appropriate cable, to the
service connector (on the rear of the set, see figure below), and
start the ComPair program (see chapter "Service Modes, Error
Codes and Fault Finding").
4.2 Set Disassembly
Follow the disassembly instructions below.
4.2.1 Back Cover Removal
1
2
3
Service connector
Figure 4-1 Rear Cover Removal
Warning: Disconnect the AC power cord before you remove
the back cover.
First, remove the top cover (plate with "saucer"):
1. Remove the three screws [1] that hold the cover plate.
2. Pull the cover (horizontally) backward.
To access the electronics of the set, you must remove the back
cover:
1. Remove the screws [2] of the rear jack panel cover plate.
2. Remove the remaining screws [3] at the two sides, and the
top of the back cover.
3. Remove the back cover. Make sure that wires and cables
are not damaged while removing the cover.
4.2.2 Subwoofer Removal
Caution: Do not disconnect the loudspeaker cable from the
subwoofer box while the set is operating, because the class-D
amplifier cannot handle a change in load during operation.
3
1
1
CL 26532058_011.eps
040602
Mechanical Instructions
There is no problem when the subwoofer is disconnected
before operation, but a change from connected to
disconnected during operation can damage the amplifier.
1. Disconnect the loudspeaker cable at the top of the
subwoofer box.
2. The subwoofer is fixed in the bottom plate with two "rubber
feet".
3. Pull the subwoofer box upwards, and remove it.
4.3 Service Positions
This chassis has several predefined service positions, for
better accessibility. They are explained below in more detail.
4.3.1 Control-Jack-High-Definition-Interface Panel Solder Side
3
To remove or access the "Control-Jack-High-Definition-
Interface" panel, do the following:
1. Remove the screw [1].
2. To release the peg, push it toward the CRT [2].
3. At the same time, pull the complete module away from the
LSP [3]. It hinges in the LSP bracket.
4. To remove the panel, remove the four panel screws [4].
4.3.2 LSP Component Side
SSB top-bracket
AUTO-SCAVEM
bracket
CONNECTOR SUPPORT
bracket
Bottom tray
EM5A P/M
2
1
4
4
3
Figure 4-2 Service position 1
SSB
LOT - bracket
LSP
1
2
1
2
Figure 4-3 Service position 2
4. EN 17
CL 26532058_012.eps
290502
CL 26532058_013.eps
290502