Text preview for : 42PFL9900D_SM_pages_17à25.pdf part of PHILIPS 42PFL9900D/10 Philips 42 PFL9900/10D AUREA FLAT TV
Back to : Philips 42PFL9900D-10.par | Home
Mechanical Instructions 4.4
4.4.1
Q528.1E LA
4.
EN 17
Assy/Panel Removal Aurea Styling
Rear Cover Warning: Disconnect the mains power cord before you remove the rear cover. Note: it is not necessary to remove the stand while removing the rear cover. Refer to next figures for details.
2 2
2
2
2
2
2 2
1
2 2 2 2 2 2 2 2 2
1
2
2 2 2 2 2 2 2 2
H_16801_103.eps 270807
Figure 4-22 Rear Cover Removal 1. Place the TV set upside down on a table top, using the foam bars (see part "Foam Bars"). Caution: do not put pressure on the display, but let the monitor lean on the cabinet! 2. Remove the mushrooms [1]. 3. Remove the screws [2]. 4. Lift the rear cover from the TV. 4.4.2 Side I/O Board Refer to next figure for details. 1. Unplug both connectors [1] and remove the screw [2]. 2. Lift out the whole unit. When defective, replace the whole unit.
2
1
H_16801_104.eps 270807
Figure 4-23 Side I/O Board
EN 18
4.4.3
4.
Q528.1E LA
Mechanical Instructions
Stand Removal Refer to next figures for details. 1. Place the set in the service position. 2. Remove the screws [1] and pull the stand downwards out of its support. 3. Remove the screws [2] and lift out the support.
2
H_16801_106.eps 270807
1
Figure 4-25 Stand removal [1/2] 4.4.4 Ambilight Reflector and Low-range Speaker removal Caution: The speakers should never be connected or disconnected when the set is playing! This can damage the amplifiers on the SSB. Refer to next figure for details. 1. 2. 3. 4. Remove the screws[1]. Lift the whole reflector from the set. Remove the connectors [2] from the low-range speakers. Remove the screws [3] from the low-range speakers and lift them from the sub-frame. When defective, replace the whole unit.
H_16801_105.eps 270807
Figure 4-24 Stand removal [1/2]
1
1
1 1 3 2 3 2
H_16801_107.eps 280807
Figure 4-26 Ambilight Reflector and Low-range Speaker removal
Mechanical Instructions
4.4.5 Ambilight LED Panel Removal The set contains two different Ambilight LED panels. A four LED and a five LED version. Removal is similar for both types. Refer to next figure for details. 1. Unplug the connectors [1]. 2. Remove the screws [2] and [3]. 3. Pull the panel forward and lift them from the sub-frame. When defective, replace the whole unit.
Q528.1E LA
4.
EN 19
2
2
1
3 3 3 3 3
2
1
3 3 3 3 3 3
H_16801_108.eps 280807
Figure 4-27 Ambilight LED panel removal
EN 20
4.4.6
4.
Q528.1E LA
Mechanical Instructions
Subframe Removal Before the Subframe can be removed, please remove the Ambilight Reflector and Low-range Speaker as described earlier. For replacing the Keyboard Control Board, the IR & LED board, the Tweeters, and the LCD panel, the Subframe and Rim have to be removed first. Refer to next figure for details. 1. Do NOT forget to unplug the LVDS connector [1] from the SSB. Important: Be careful, as this is a very fragile connector! 2. Unplug the connectors[2]. 3. Remove the screws [3] and [4]. 4. Now lift the subframe from the set.
4
3 3 3 3
4
3
3
3
1
3
3
2 2
3
3
4
3
4
3 3 3 3 3
3
H_16801_109.eps 280807
Figure 4-28 Subframe removal
Mechanical Instructions
4.4.7 Rim removal For replacing the Keyboard Control Board, the IR & LED board, the Tweeters and the LCD panel, the Subframe and Rim have to be removed first. Refer to next figure for details. 1. Remove the screws [1]. 2. Lift the rim from the set. 4.4.9
Q528.1E LA
4.
EN 21
Keyboard Control Board For replacing the Keyboard Control Board, the Subframe and the Rim have to be removed first. Please refer to the sections Subframe removal and Rim removal. Refer to next figure for details. 1. Remove the screws [1] . 2. Lift the unit from the set in the shown direction. 3. Unplug the connector and remove the board. 4. Lift the clamps [2].
1
2 1
H_16801_112.eps 300807
Figure 4-29 Rim removal 4.4.8 IR & LED Board For replacing the IR & LED Board, the Subframe and the Rim have to be removed first. Please refer to the sections Subframe removal and Rim removal. Refer to next figure for details. 1. Unplug connectors [1]. 2. Remove the screws [2]. 3. Lift the board and take it out of the set. When defective, replace the whole unit.
H_16801_110.eps 300807
Figure 4-31 Keyboard Control Board
1
2
H_16801_111.eps 300807
Figure 4-30 IR & LED Board
EN 22
4.
Q528.1E LA
Mechanical Instructions
4.4.10 Tweeters removal Caution: The tweeters should never be connected or disconnected when the set is playing! This can damage the amplifiers on the Audio/Standby Board. For replacing the IR & LED Board, the Subframe and the Rim have to be removed first. Please refer to the sections Subframe removal and Rim removal. Refer to next figure for details. 1. Unplug connector [1]. 2. Remove screws [2]. 3. Take the tweeters out together with their casing. When defective, replace the whole unit.
2
1
H_16801_113.eps 300807
Figure 4-32 Tweeters removal 4.4.11 LCD Panel For replacing the LCD Panel, the Subframe has to be removed first. Please refer to the section Subframe removal. Refer to next figure for details. 1. Lift the LCD panel from the front cabinet. When defective, replace the whole unit.
1
1
1
1
H_16801_114.eps 300807
Figure 4-33 LCD Panel
Mechanical Instructions
4.4.12 Small Signal Board (SSB) Caution: it is mandatory to remount all different screws at their original position during re-assembly. Failure to do so may result in damaging the SSB. Refer to next figures for details. 1. Unplug the LVDS connector [1]. Caution: be careful, as this is a very fragile connector! 2. Unplug the connectors [2]. 3. Remove the screws [3]. 4. Remove the parker screws [4]. 5. Remove the tapping screws [5]. The SSB can now be taken out of the set.
Q528.1E LA
4.
EN 23
4.4.13 Power Supply Unit (PSU) Refer to next figure for details. 1. Unplug the connectors [1]. 2. Remove the screws [2]. The PSU can now be taken out of the set.
2 2
3
1
3
1 2
3
2
2
2
2
1
3 3
3
3
2
2
H_16801_126.eps 030907
Figure 4-34 Small Signal Board removal [1/2]
2 2
1
4 4 5
5
5
Figure 4-36 PSU panel removal
H_16801_127.eps 310807
H_16800_120.eps 240707
Figure 4-35 Small Signal Board removal [2/2]
EN 24
4.
Q528.1E LA
Mechanical Instructions
4.4.15 Audio and Ambilight supply panel Refer to next figures for details. 1. Unplug the connectors [1]. 2. Remove the screws [2]. The Audio and Ambilight supply panel can now be taken out of the set.
4.4.14 Dynamic Frame Insertion panel (DFI) Refer to next figures for details. 1. Unplug the LVDS connectors [1]. Caution: be careful, as these are very fragile connectors! 2. Unplug the other connectors [2]. 3. Remove the screws [3]. The DFI panel can now be taken out of the set.
2 3 2
2
3
2 1 1
2
3 2
2
3
1
2 3 3 2 2
H_16801_129.eps 310807
H_16801_128.eps 310807
Figure 4-38 Audio and Ambilight supply panel removal Figure 4-37 DFI panel removal
4.5
Set Re-assembly
To re-assemble the whole set, execute all processes in reverse order. Notes: · While re-assembling, make sure that all cables are placed and connected in their original position. See figure "Cable dressing". · Pay special attention not to damage the EMC foams on the SSB shields. Ensure that EMC foams are mounted correctly.
Service Modes, Error Codes, and Fault Finding
Q528.1E LA
5.
EN 25
5. Service Modes, Error Codes, and Fault Finding
Index of this chapter: 5.1 Test Points 5.2 Service Modes 5.3 Stepwise Start-up 5.4 Service Tools 5.5 Error Codes 5.6 The Blinking LED Procedure 5.7 Protections 5.8 Fault Finding and Repair Tips 5.9 Software Upgrading Picture mute (blue mute or black mute). Automatic volume levelling (AVL). Skip/blank of non-favourite pre-sets.
5.1
Test Points
As most signals are digital, it will be difficult to measure waveforms with a standard oscilloscope. However, several key ICs are capable of generating test patterns, which can be controlled via ComPair. In this way it is possible to determine which part is defective. Perform measurements under the following conditions: · Service Default Mode. · Video: Colour bar signal. · Audio: 3 kHz left, 1 kHz right.
How to Activate SDM For this chassis there are two kinds of SDM: an analogue SDM and a digital SDM. Tuning will happen according table "SDM Default Settings". · Analogue SDM: use the standard RC-transmitter and key in the code "062596", directly followed by the "MENU" button. Note: It is possible that, together with the SDM, the main menu will appear. To switch it "off", push the "MENU" button again. · Digital SDM: use the standard RC-transmitter and key in the code "062593", directly followed by the "MENU" button. Note: It is possible that, together with the SDM, the main menu will appear. To switch it "off", push the "MENU" button again. · Analogue SDM can also be activated by shorting for a moment the two solder pads [1] (see figure "Service mode pads") on the SSB, with the indication "SDM". Activation can be performed in all modes, except when the set has a problem with the Stand-by Processor.
5.2
Service Modes
Service Default mode (SDM) and Service Alignment Mode (SAM) offers several features for the service technician, while the Customer Service Mode (CSM) is used for communication between the call centre and the customer. This chassis also offers the option of using ComPair, a hardware interface between a computer and the TV chassis. It offers the abilities of structured troubleshooting, error code reading, and software version read-out for all chassis. (see also paragraph "ComPair").
1 2
5.2.1
Service Default Mode (SDM)
Purpose · To create a pre-defined setting, to get the same measurement results as given in this manual. · To override SW protections detected by stand-by processor and make the TV start up to the step just before protection (a sort of automatic stepwise start up). See paragraph "Stepwise Start Up". · To override SW protections detected by MIPS. See also paragraph "Error codes". · To start the blinking LED procedure (not valid for protections detected by standby software). Specifications
Table 5-1 SDM default settings Default system PAL B/G 5.2.2
H_16770_100.eps 130707
Figure 5-1 Service mode pads After activating this mode, "SDM" will appear in the upper right corner of the screen (if you have picture).
How to Navigate When you press the "MENU" button on the RC transmitter, the set will toggle between the SDM and the normal user menu (with the SDM mode still active in the background). How to Exit SDM Use one of the following methods: · Switch the set to STAND-BY via the RC-transmitter. · Via a standard customer RC-transmitter: key in "00"sequence.
Service Alignment Mode (SAM)
Region Europe, AP(PAL/Multi) Europe, AP DVB-T
Freq. (MHz) 475.25
DVB-T 546.00 PID Video: 0B 06 PID PCR: 0B 06 PID Audio: 0B 07
· · ·
All picture settings at 50% (brightness, colour, contrast). All sound settings at 50%, except volume at 25%. All service-unfriendly modes (if present) are disabled, like: (Sleep) timer. Child/parental lock.
Purpose · To perform (software) alignments. · To change option settings. · To easily identify the used software version. · To view operation hours. · To display (or clear) the error code buffer.