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EN 8
4.
4. Mechanical Instructions
Index of this chapter:
4.1 Service Connector (for ComPair)
4.2 Set Disassembly
4.3 Service Positions
4.4 Assy / Board Removal
4.5 Set Re-assembly
Note: Figures below can deviate slightly from the actual
situation, due to the different set executions.
4.1
Service Connector (for ComPair)
For service diagnostics with ComPair, it is not necessary to
disassemble the set. You only have to connect the ComPair
interface box, via the appropriate cable, to the service
connector (on the rear of the set, see figure 1-2), and start the
program (see also chapter 5 "Service Modes, Error Codes, and
Fault Finding ").
4.2
Set Disassembly
Follow the disassemble instructions in described order.
4.2.1
Rear Cover Removal
Warning: disconnect the mains power cord before you remove
the rear cover.
1. Remove all the fixation screws of the rear cover.
2. Now the rear cover can be removed.
4.3
Service Positions
This chassis has several predefined service positions, for
better accessibility. They are explained below in more detail.
4.3.1
Large Signal Panel (LSP)
Component Side LSP
For better accessibility of the LSP, do the following (see Figure
"Service position 1"):
1.
Simultanuously do the following: a) pull the two plastic
locking handles at the mid left and mid right side of the
bracket gently backwards to unlock the bracket, and b)
loosen the bracket from the bottom tray, by pulling it
backwards. N.B.: You do not need to pull the other two
locking handles backwards.
2. Remove the LSP-bracket from the bottom tray by lifting it
upwards.
3. Hook the bracket in the first row of fixation holes of the
bottom tray. In other words, reposition the bracket from [1]
to [2].
1
2
Figure 4-1 Service position 1
Mechanical Instructions
ES1E
Bottom tray
1
2
CL 36532058_079.eps
Solder Side LSP
To get access to the bottom side (solder side) of the LSP, do
the following (see figure 4-1):
1. Remove the connector of the mains cable (coming from the
mains switch-module) from the LSP.
2. Remove the cable (connector) from the side I/O panel.
3. Release some wiring from their fixation clamps, in order to
get room for repositioning the LSP.
4. Flip the LSP 90 degrees clockwise [2], and place it in the
fixation hole at the left side of the bottom tray [3].
5. Push the LSP forward to fix it. (Alternatively, the LSP may
also be placed on your work bench without being
positioned in its fixation hole, or it may even be removed
from the bracket for better accessibility, see "Assy / Board
Removal: Large Signal Panel (LSP)" on the next pages.)
2
4
4.3.2
Small Signal Board (SSB)
In fact, there is no predefined service position for the SSB. Most
test points are located on the A-side (side that is facing the
tuner). If you have to replace ICs, you must take the complete
SSB module out of the SIMM-connector.
Notes:
•
For better access to the SSB, it is possible to order an
"extension tool" with cables. You can use this service
extension tool to connect a Small Signal Board (SSB) of an
ES1E, A02, A10, or EMG (EMx) chassis, via two "IDE"
cables to the SIMM connector in the set. In this way, you
can service the SSB more easily outside the TV set. You
can order this tool under 12nc: 9965 000 14526.
•
If necessary for the measurement, you can put the LSP in
"service position 2" (as described above).
4.4
Assy / Board Removal
Sometimes, it can be necessary to swap a complete assy or
Printed Wiring Board (PWB). How that can be done is
explained below.
081003
1
CL 36532058_078.eps
3
Figure 4-2 Service position 2
081003
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