Philips Colour Television Specifications download pdf (Page 21)

Mechanical Instructions

GB 21EM3E 4.

4.3.3 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.

To get access to the SSB test points, do the following:

1. Put the LSP in service position 1 (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].

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].

Figure 4-5 .eps

1. Push the top of the SSB towards 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].

Figure 4-6 .eps

1. Once you have taken out the SSB, remove the A-side

shielding [2]. Sometimes it is necessary to unsolder

some solder-tags first [1].

2. Now replace the SSB module in the SIMM-connector in

reverse order.

Figure 4-7

Note 1: For better access to the SSB, it is possible to order

an ‘extension board’ under number 9965 000 07933.

Note 2: If necessary for the measurement, put the LSP in

'service position 2' (as described above).

4.3.4 Top Control Panel

1. Remove the two fixation screws.

2. Pull the board backward.

Figure 4-8

4.3.5 Side I/O Panel

1. Remove the two fixation screws [1].

2. Push the panel door inside and fix it in the lock [2].

3. Pull the module backward [3].

4. Now release the fixation clamps, in order to remove the

print from its bracket.

Figure 4-9 .eps

CL 16532044_027.eps

160501

SSB

CL 16532044_007.eps

090501

CL 16532044_008.eps

090501

SAM (4005)

SDM (4006)

CL96532137_009.eps

101199

Top control board

CL 16532044_009.eps

090501

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Philips Colour Television Specifications Page 21

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