Philips EM5A NTSC Service Manual page 20

www.freeservicemanuals.info
EN 20 4. EM5A NTSC
4.4.4 DAF Assembly/Panel
Figure 4-11 DAF module
1. Remove the screw [1] (if present).
2. Push the clamp [2] down, and, at the same time, pull the
complete bracket away from the CRT [3]. The module is
now free from the LSP bracket.
3. Release the clamps [4], in order to remove the board from
its bracket.
4.4.5 Auto-SCAVEM Assembly/Panel
This panel is placed on the left side of the SSB (See figure
"Service Position 2"). Because most of its components are
located on the bottom side, you must lift the panel from its
bracket before you can perform measurements.
1. Release the two clamps at the top.
2. Lift the panel from the bracket (it hinges at the bottom).
To remove the bracket:
1. First, remove the panel from the bracket, as described
above.
2. Remove the two screws at the bottom.
3. Lift the Auto-Scavem bracket slightly up, and at the same
time bend the top slightly away from the tuner.
4. Push the bracket in the direction of the CRT, and lift it out
of the LSP-bracket.
4.4.6 Double Window Assembly/Panel
3D COMB FILTER
Figure 4-12 DW/3D Comb filter module
This panel is placed in a bracket (together with the 3D Comb
Filter panel) that is located on the left side of the tuner.
To remove the bracket:
1. Pull the release handle [1] backwards. This will lift the
release catch, and the bracket can be pulled out
backwards.
Mechanical Instructions
CL 16532044_011.eps
150501
2
2
DW - MODULE
1
CL 26532058_020.eps
2. Release the two securing clamps [2] and lift the board out
of the bracket.
3. Both sides of the panel are now easy accessible.
4.4.7 3D Comb Filter Assembly/Panel
This panel is placed in a bracket (together with the 3D Comb
Filter panel) that is located on the left side of the tuner.
To remove the bracket:
1. Pull the release handle [1] backwards. This will lift the
release catch, and the bracket can be pulled out
backwards.
2. Release the two securing clamps and remove the board
from the bracket.
3. Both sides of the panel are now easy accessible.
4. To remove the shielding, de-solder the three solderjoints.
4.4.8 Small Signal Board (SSB)
See section 4.3.4 "Small Signal Board (SSB)" above.
4.4.9 Large Signal Panel (LSP)
1. Remove the SSB (see paragraph "Small Signal Board
(SSB)" above).
2. Remove the Auto-Scavem assembly (see paragraph "Auto
Scavem Assembly/Panel" above).
3. Disconnect the necessary cables.
4. Release the clamps on the left of the LSP-bracket (the
board hinges at the right side).
5. Remove the board from the bracket.
4.5 Set Reassembly
To reassemble the set, perform all disassembly processes in
reverse order.
Before replacing the back cover:
• Be sure the AC power cord is mounted correctly in its
guiding brackets.
• Be sure all wires/cables are returned to their original
positions. This is very important due to the large "hot" area
of the set
070602