Philips EM1.1A Service Manual page 8

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EN 8
4.
EM1.1A AA
4.3.3
LSP Solder Side
2
4
Figure 4-4 Service position 3
To access the bottom side (solder side) of the LSP, do the
following (see figure above):
1. Remove the DAF module (see paragraph "DAF Assembly/
Panel" below.)
2. To disconnect the degaussing coil from the LSP, remove
the cable from connector 1502 [1.]
3. Release the wires from their clamps to make room to
reposition the LSP.
4. Turn the LSP 90 degrees clockwise [2], and place it in the
hole at the left side of the bottom tray [3.]
4.3.4
Small Signal Board (SSB)
There is no predefined service position for the SSB. Most test
points are located on the A-side (the side that faces the tuner.)
If you have to replace ICs, you must take the complete SSB
module out of the SIMM-connector.
To access the SSB test points, do the following:
3
2
2
6
5
7
4
4
Figure 4-5 SSB removal (part 1)
1. Put the LSP in service position 2 (as described above.)
2. Remove the fixation screw, which holds the SSB-bracket
[1.]
3. Release the clamping jaw at the top of the SSB bracket [2]
and [3.]
4. Push the two clamping lugs outwards, and pull the top of
the bracket at the same time upwards [4] and [5.]
Mechanical Instructions
1
1502
3
CL 26532072_014.eps
1
6
7
3
CL 26532072_015.eps
5. Now you can remove the complete bracket. Push it, at the
height of the LSP-bracket, towards the CRT [6] and lift it out
of the LSP-bracket [7.]
2
180602
1. Push the top of the SSB toward the LOT [1.]
2. Due to the pressure, the two metal clamps at both sides of
the SIMM-connector will release [2.]
3. Take the complete SSB out [3.]
2
1
1. Once you have taken out the SSB, remove the A-side
shielding [2.] Sometimes it is necessary to unsolder some
solder tags before doing this [1.]
2. Replace the SSB module in the SIMM-connector in reverse
order.
Notes:
For better access to the SSB, it is possible to order an
"extension board," which is part number 9965 000 05769.
If it is necessary for measurements, you can put the LSP in
"service position 3" (as described above.)
180602
4.4
Assembly / Board Removal
Sometimes, it may be necessary to swap a complete assembly
or Circuit Board Assembly (CBA.) This procedure is explained
below.
3
1
S S B
Figure 4-6 SSB removal (part 2)
1
Figure 4-7 SSB removal (part 3)
2
CL 26532072_016.eps
140602
SDM (4006)
SAM (4005)
CL 16532044_008.eps
090501

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