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Colour Television
Chassis
LC4.41E
AA For manual LGE PDP panel see: 3122 785 15590 For manual FHP PDP panel see: 3122 785 14580 For manual SDI PDP panel see: 3122 785 14990
ME6
G_16240_000.eps 170206
Contents
Page
Contents
Page
61-70 61-70 61-70 61-70 61-70 61-70 61-70 61-70 61-70 73 75 76 78 80
1. Technical Specifications, Connections, and Chassis Overview 2 2. Safety Instructions, Warnings, and Notes 5 3. Directions for Use 6 4. Mechanical Instructions 7 5. Service Modes, Error Codes, and Fault Finding 11 6. Block Diagrams, Test Point Overviews, and Waveforms Wiring Diagram 42" LG 19 Wiring Diagram 42" & 50" SDI 20 Block Diagram Supply FHP 21 Block Diagram Video 22 Block Diagram Audio 23 Test Point Overview Small Signal Board 24 I2C Overview 25 Supply Voltage Overview 26 7. PDP FHP Supply: Filter Standby (A2) 27 PDP FHP Supply: Protection (A3) 28 PDP FHP Supply: Pre Conditioner (A5) 29 PDP FHP Supply: LLC Supply (A6) 30 PDP FHP Supply: AUX Supply (A7) 31 SSB: Tuner and VIF (B1) 38 SSB: Hercules (B2) 39 SSB: Sync Interface (B3) 40 SSB: Audio Delay Line (PDP Only) (B4) 41 SSB: Audio Processing (B5) 42 SSB: DC-DC Converter (B6) 43 SSB: Diversity Tables B1-B6 44 SSB: Scaler (B7) 45 SSB: Scaler (B8) 46 SSB: Scaler Interface (B9) 47 SSB: SDRAM (B10) 48 SSB: Flash / Control (B11) 49 SSB: HDMI (B12) 50
32-37 32-37 32-37 32-37 32-37 61-70 61-70 61-70 61-70 61-70 61-70 61-70 61-70 61-70 61-70 61-70 61-70
8. 9.
10. 11.
SSB: MUX-Sync Interface (B13) 51 SSB: Digital I/O (B14) 52 SSB: SCART Analog I/O (B15A) 53 SSB: DMMI (B15B) 54 SSB: Top Connectors (B16) 55 SSB: Side Connectors (B17) 56 SSB: ADC (B18) 57 SSB: Columbus (B19) 58 SSB: Pacific 3 (B20) 59 SSB: Diversity Tables B9-B20 60 Audio Panel: Amplifier (C) 71 Side I/O Panel (D) 74 Keyboard Control Board (E) 76 Front IR / LED Panel (J) 77 OTC Flash (For 1000pg TXT) (T) 79 Alignments 83 Circuit Descriptions, Abbreviation List, and IC Data Sheets 89 Abbreviation List 90 IC Data Sheets 93 Spare Parts List 97 Revision List 107
© Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.
Published by WS 0770 BU CD Customer Service
Printed in the Netherlands
Subject to modification
EN 3122 785 16241
EN 2
1.
LC4.41E AA
Technical Specifications, Connections, and Chassis Overview
1. Technical Specifications, Connections, and Chassis Overview
Index of this chapter: 1.1 Technical Specifications 1.2 Connection Overview 1.3 Chassis Overview Notes: · Figures can deviate due to the different set executions. · Specifications are indicative (subject to change). Maximum power (WRMS) 1.1.3 Miscellaneous Power supply: Mains voltage (VAC) Mains frequency (Hz) Ambient conditions: - Temperature range (°C) - Maximum humidity : Plasma : 42" (107 cm), 15:9 : : : : : : : : : : : : : : : Power consumption: Normal operation (W) Stand-by (W) Dimensions (WxHxD cm): - 42PF3321/10 - 42PF5321/10/12 - 42PF5411/10 - 42PF7321/10/12 Weight (kg): - 42PF3321/10 - 42PF5321/10/12 - 42PF5411/10 - 42PF7321/10/12 : 2 x 15
: 220 - 240 : 50 / 60
1.1
1.1.1
Technical Specifications
Vision Display type Screen size Resolution (HxV pixels) - 42PF3321/10 - 42PF5321/10/12 - 42PF5411/10 - 42PF7321/10/12 Contrast ratio (typical) - 42PF3321/10 - 42PF5321/10/12 - 42PF5411/10 - 42PF7321/10/12 Light output (cd/m2) - 42PF3321/10 - 42PF5321/10/12 - 42PF5411/10 - 42PF7321/10/12 Viewing angle (HxV degrees) Tuning system TV Colour systems
: +5 to +40 : 90% R.H.
: 220 : <2
852 x 480 852 x 480 852 x 480 1024 x 768
: : : :
123.6 x 67.9 x 10.3 123.6 x 67.9 x 10.3 123.6 x 67.9 x 10.3 124.9 x 68.8 x 11.1
3000:1 7000:1 7000:1 7000:1
: : : :
39.2 39.2 39.2 42.0
1.2
1000:1 1100:1 1100:1 1100:1 1.2.1
Connection Overview
Note: The following connector colour abbreviations are used (acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy= Grey, Rd= Red, Wh= White, and Ye= Yellow. Side I/O connections
: 160 x 160 : PLL : PAL B/G, D/K, I : SECAM B/G, D/K, L/L' : NTSC M/N 3.58, 4.43 : PAL B/G : SECAM L/L' : : : : : : : : VGA (640x480) MAC (640x480) SVGA (800x600) XVGA (1024x768) 640x480p - 2fH 720x576p - 2fH 1280x720p - 3fH 1920x1080i - 2fH
Audio Video
R L
Video playback
S-Video G_16210_070.eps 190106
Supported computer formats
Figure 1-1 Side I/O connections S-Video (Hosiden): Video Y/C - In 1 - Ground Y Gnd 2 - Ground C Gnd 3 - Video Y 1 VPP / 75 ohm 4 - Video C 0.3 VPP / 75 ohm Cinch: Video CVBS - In, Audio - In Ye - Video CVBS 1 VPP / 75 ohm Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm Mini Jack: Audio Head phone - Out Bk - Head phone 32 - 600 ohm / 10 mW
Supported video formats
H H j j
Presets/channels Tuner bands
: 100 presets : : : : VHF UHF S-band Hyper-band
jq jq jq
ot
1.1.2
Sound Sound systems : NICAM B/G, D/K, I, L : AV Stereo
Technical Specifications, Connections, and Chassis Overview
1.2.2 Rear Connections
AERIAL IN VIDEO IN Pr Pb Y
EXT 1
LC4.41E AA
1.
EN 3
EXT1: Video RGB - In, CVBS - In/Out, Audio - In/Out
20
2
AUDIO IN R L L R
EXT 2
21
UART I2C ComPair G_16210_071.eps 190106
E_06532_001.eps 050404
1
HDMI DVI HDMI AUDIO IN
EXT 2
EXT 1
Figure 1-4 SCART connector 1 2 3 4 5 6 7 8 - Audio R - Audio R - Audio L - Ground Audio - Ground Blue - Audio L - Video Blue - Function Select 0.5 VRMS / 1 kohm 0.5 VRMS / 10 kohm 0.5 VRMS / 1 kohm Gnd Gnd 0.5 VRMS / 10 kohm 0.7 VPP / 75 ohm 0 - 2 V: INT 4.5 - 7 V: EXT 16:9 9.5 - 12 V: EXT 4:3 Gnd 0.7 VPP / 75 ohm k j k H H j j j H j H H j j H H k j H
Figure 1-2 Rear I/O Aerial - In - - IEC-type (EU) Cinch: Audio - In Wh - Audio L Rd - Audio R
Coax, 75 ohm
D
0.5 VRMS / 10 kohm 0.5 VRMS / 10 kohm
jq jq 9 10 11 12 13 14 15 16 17 18 19 20 21 - Ground Green - n.c. - Video Green - n.c. - Ground Red - Ground - Video Red - Status/FBL
Cinch: Video YPbPr - In Gn - Video Y 1 VPP / 75 ohm Bu - Video Pb 0.7 VPP / 75 ohm Rd - Video Pr 0.7 VPP / 75 ohm Cinch: DVI Audio - In Rd - Audio - R 0.5 VRMS / 10 kohm Wh - Audio - L 0.5 VRMS / 10 kohm Service connector (ComPair) 1 - SDA-S I2C Data (0 - 5 V) 2 - SCL-S I2C Clock (0 - 5 V) 3 - Ground Gnd Service connector (UART) 1 - UART_TX Transmit 2 - Ground Gnd 3 - UART_RX Receive HDMI: Digital Video/Digital Audio - In
19 18 1 2
E_06532_017.eps 250505
jq jq jq
jq jq
jk j H
Gnd Gnd 0.7 VPP / 75 ohm 0 - 0.4 V: INT 1 - 3 V: EXT / 75 ohm - Ground Video Gnd - Ground FBL Gnd - Video Terr. CVBS 1 VPP / 75 ohm - Video CVBS/Y 1 VPP / 75 ohm - Shield Gnd
EXT2: Video Y/C - in, CVBS - In/Out, Audio - In/Out k H j
20
2
21
E_06532_001.eps 050404
1
Figure 1-5 SCART connector Figure 1-3 HDMI (type A) connector 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 - D2+ - Shield - D2- D1+ - Shield - D1- D0+ - Shield - D0- CLK+ - Shield - CLK- n.c. - n.c. - DDC_SCL - DDC_SDA - Ground - +5V - HPD - Ground Data channel Gnd Data channel Data channel Gnd Data channel Data channel Gnd Data channel Data channel Gnd Data channel j H j j H j j H j j H j j jk H j j H 1 2 3 4 5 6 7 8 - Audio R - Audio R - Audio L - Ground Audio - Ground Blue - Audio L - n.c. - Function Select 0.5 VRMS / 1 kohm 0.5 VRMS / 10 kohm 0.5 VRMS / 1 kohm Gnd Gnd 0.5 VRMS / 10 kohm 0 - 2 V: INT 4.5 - 7 V: EXT 16:9 9.5 - 12 V: EXT 4:3 Gnd k j k H H j
DDC clock DDC data Gnd Hot Plug Detect Gnd
9 10 11 12 13 14 15 16 17 18 19 20 21
- Ground Green - n.c. - n.c. - n.c. - Ground Red Gnd - Ground Gnd - YC/C - in 0.7 VPP / 75 ohm - n.c. - Ground Video Gnd - Ground Gnd - Video Mon. CVBS 1 VPP / 75 ohm - YC/Y - in 0.7 VPP / 75 ohm - Shield Gnd
j H
H H j H H k j H
EN 4 1.3
1.
LC4.41E AA
Technical Specifications, Connections, and Chassis Overview
Chassis Overview
LCD PANEL
A B T E
POWER SUPPLY PANEL SMALL SIGNAL BOARD OTC TXT PANEL CONTROL BOARD AUDIO PANEL
C
SIDE I/O PANEL
D J
LED & IR PANEL
G_16240_024.eps 200206
Figure 1-6 Chassis overview
Safety Instructions, Warnings, and Notes
LC4.41E AA
2.
EN 5
2. Safety Instructions, Warnings, and Notes
Index of this chapter: 2.1 Safety Instructions 2.2 Warnings 2.3 Notes
2.3
2.3.1
Notes
General · Measure the voltages and waveforms with regard to the chassis (= tuner) ground (H), or hot ground (I), depending on the tested area of circuitry. The voltages and waveforms shown in the diagrams are indicative. Measure them in the Service Default Mode (see chapter 5) with a colour bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3). Where necessary, measure the waveforms and voltages with (D) and without (E) aerial signal. Measure the voltages in the power supply section both in normal operation (G) and in stand-by (F). These values are indicated by means of the appropriate symbols. The semiconductors indicated in the circuit diagram and in the parts lists, are interchangeable per position with the semiconductors in the unit, irrespective of the type indication on these semiconductors.
2.1
Safety Instructions
Safety regulations require the following during a repair: · Connect the set to the Mains (AC Power) via an isolation transformer (> 800 VA). · Replace safety components, indicated by the symbol h, only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard. Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to the following points: · Route the wire trees correctly and fix them with the mounted cable clamps. · Check the insulation of the Mains (AC Power) lead for external damage. · Check the strain relief of the Mains (AC Power) cord for proper function. · Check the electrical DC resistance between the Mains (AC Power) plug and the secondary side (only for sets that have a Mains (AC Power) isolated power supply): 1. Unplug the Mains (AC Power) cord and connect a wire between the two pins of the Mains (AC Power) plug. 2. Set the Mains (AC Power) switch to the "on" position (keep the Mains (AC Power) cord unplugged!). 3. Measure the resistance value between the pins of the Mains (AC Power) plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be between 4.5 Mohm and 12 Mohm. 4. Switch "off" the set, and remove the wire between the two pins of the Mains (AC Power) plug. · Check the cabinet for defects, to prevent touching of any inner parts by the customer.
·
·
2.3.2
Schematic Notes · All resistor values are in ohms, and the value multiplier is often used to indicate the decimal point location (e.g. 2K2 indicates 2.2 kohm). Resistor values with no multiplier may be indicated with either an "E" or an "R" (e.g. 220E or 220R indicates 220 ohm). All capacitor values are given in micro-farads (= x10-6), nano-farads (n= x10-9), or pico-farads (p= x10-12). Capacitor values may also use the value multiplier as the decimal point indication (e.g. 2p2 indicates 2.2 pF). An "asterisk" (*) indicates component usage varies. Refer to the diversity tables for the correct values. The correct component values are listed in the Spare Parts List. Therefore, always check this list when there is any doubt.
·
· · · ·
2.2
Warnings
· All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD w). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are connected with the same potential as the mass of the set by a wristband with resistance. Keep components and tools also at this same potential. Available ESD protection equipment: Complete kit ESD3 (small tablemat, wristband, connection box, extension cable and earth cable) 4822 310 10671. Wristband tester 4822 344 13999. Be careful during measurements in the high voltage section. Never replace modules or other components while the unit is switched "on". When you align the set, use plastic rather than metal tools. This will prevent any short circuits and the danger of a circuit becoming unstable.
2.3.3
Rework on BGA (Ball Grid Array) ICs General Although (LF)BGA assembly yields are very high, there may still be a requirement for component rework. By rework, we mean the process of removing the component from the PWB and replacing it with a new component. If an (LF)BGA is removed from a PWB, the solder balls of the component are deformed drastically so the removed (LF)BGA has to be discarded. Device Removal As is the case with any component that, is being removed, it is essential when removing an (LF)BGA, that the board, tracks, solder lands, or surrounding components are not damaged. To remove an (LF)BGA, the board must be uniformly heated to a temperature close to the reflow soldering temperature. A uniform temperature reduces the risk of warping the PWB. To do this, we recommend that the board is heated until it is certain that all the joints are molten. Then carefully pull the component off the board with a vacuum nozzle. For the appropriate temperature profiles, see the IC data sheet. Area Preparation When the component has been removed, the vacant IC area must be cleaned before replacing the (LF)BGA. Removing an IC often leaves varying amounts of solder on the mounting lands. This excessive solder can be removed with either a solder sucker or solder wick. The remaining flux can be removed with a brush and cleaning agent.
· · ·
EN 6
3.
LC4.41E AA
Directions for Use
workshops should be avoided because paste is not easy to store and to handle. Use only adequate solder tools applicable for lead-free soldering tin. The solder tool must be able: To reach a solder-tip temperature of at least 400°C. To stabilise the adjusted temperature at the solder-tip. To exchange solder-tips for different applications. Adjust your solder tool so that a temperature of around 360°C - 380°C is reached and stabilised at the solder joint. Heating time of the solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400°C, otherwise wear-out of tips will increase drastically and flux-fluid will be destroyed. To avoid wear-out of tips, switch "off" unused equipment or reduce heat. Mix of lead-free soldering tin/parts with leaded soldering tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If this cannot be avoided, carefully clear the solder-joint from old tin and re-solder with new tin. Use only original spare-parts listed in the Service-Manuals. Not listed standard material (commodities) has to be purchased at external companies. Special information for lead-free BGA ICs: these ICs will be delivered in so-called "dry-packaging" to protect the IC against moisture. This packaging may only be opened shortly before it is used (soldered). Otherwise the body of the IC gets "wet" inside and during the heating time the structure of the IC will be destroyed due to high (steam-) pressure inside the body. If the packaging was opened before usage, the IC has to be heated up for some hours (around 90°C) for drying (think of ESD-protection!). Do not re-use BGAs at all! For sets produced before 1.1.2005, containing leaded soldering tin and components, all needed spare parts will be available till the end of the service period. For the repair of such sets nothing changes.
After the board is properly cleaned and inspected, apply flux on the solder lands and on the connection balls of the (LF)BGA. Note: Do not apply solder paste, as this has been shown to result in problems during re-soldering. Device Replacement The last step in the repair process is to solder the new component on the board. Ideally, the (LF)BGA should be aligned under a microscope or magnifying glass. If this is not possible, try to align the (LF)BGA with any board markers. So as not to damage neighbouring components, it may be necessary to reduce some temperatures and times. More Information For more information on how to handle BGA devices, visit this URL: www.atyourservice.ce.philips.com (needs subscription, not available for all regions). After login, select "Magazine", then go to "Repair downloads". Here you will find Information on how to deal with BGA-ICs. 2.3.4 Lead-free Solder Philips CE is producing lead-free sets (PBF) from 1.1.2005 onwards. Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 5 and 6 refer to the production year, digits 7 and 8 refer to production week (in example below it is 1991 week 18).
·
·
·
·
·
·
MODEL : 32PF9968/10
PROD.NO: AG 1A0617 000001
MADE IN BELGIUM 220-240V ~ 50/60Hz 128W VHF+S+H+UHF
S
Figure 2-1 Serial number example
BJ3.0E LA
E_06532_024.eps 130606
In case of doubt whether the board is lead-free or not (or with mixed technologies), you can use the following method: · Always use the highest temperature to solder, when using SAC305 (see also instructions below). · De-solder thoroughly (clean solder joints to avoid the mixing of two alloys). Caution: For BGA-ICs, you must use the correct temperature profile, which is coupled to the 12NC. For an overview of these profiles, visit the website www.atyourservice.ce.philips.com (needs subscription, and is not available for all regions). You will find this and more technical information within the "Magazine", chapter "Repair downloads". For additional questions please contact your local repair help desk. 2.3.5 Practical Service Precautions · It makes sense to avoid exposure to electrical shock. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard. Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.
Regardless of the special lead-free logo (which is not always indicated), one must treat all sets from this date onwards according to the rules as described below.
P
b
Figure 2-2 Lead-free logo Due to lead-free technology some rules have to be respected by the workshop during a repair: · Use only lead-free soldering tin Philips SAC305 with order code 0622 149 00106. If lead-free solder paste is required, please contact the manufacturer of your soldering equipment. In general, use of solder paste within
·
3. Directions for Use
You can download this information from the following websites: http://www.philips.com/support http://www.p4c.philips.com
Mechanical Instructions
LC4.41E AA
4.
EN 7
4. Mechanical Instructions
Index of this chapter: 4.1 Cable Dressing 4.2 Service Position 4.3 Assy/Panel Removal 4.4 Set Re-assembly Notes: · Figures below can deviate slightly from the actual situation, due to the different set executions. · Follow the disassembling instructions in described order.
4.1
Cable Dressing
G_16240_011.eps 150206
Figure 4-1 Cable dressing
4.2
Service Position
First, put the TV set in its service position. Therefore, place it upside down on a table top (use a protection sheet or foam bars).
mirror flat on the table under the TV you can easily see if something is happening on the screen.
4.3
4.3.1
Assy/Panel Removal
Rear Cover Warning: Disconnect the mains power cord before you remove the rear cover. 1. Remove the screws that secure the rear cover. 2. Lift the rear cover from the cabinet cautiously. Make sure that wires and other internal components are not damaged during cover removal.
4.2.1
The Foam Bars
1
1
Required for sets 42"
E_06532_018.eps 171106
Figure 4-2 Foam bars The foam bars (order code 3122 785 90580) can be used for all types and sizes of Flat TVs. By laying the plasma TV flat on the (ESD protective) foam bars, a stable situation is created to perform measurements and alignments. By first placing a
EN 8
4.3.2
4.
LC4.41E AA
Mechanical Instructions
4.3.4 Keyboard Control Panel
Side I/O Panel
4
3 2 1 4 1 2
G_16240_012.eps 150206
Figure 4-3 Side I/O panel 1. 2. 3. 4. 5. 6. Remove the rear panel. Remove the screw from the cable clip [1]. Remove the screws [2] from the loudspeaker cabinet. Lift the loudspeaker cabinet from the frame. Disconnect the cable [3] from the panel. Remove the fixation screws [4], and slide the panel out of its bracket.
3
G_16240_014.eps 170206
Figure 4-5 Keyboard control panel Remove the rear panel. Remove the screws [1] from the loudspeaker cabinet. Lift the loudspeaker cabinet from the frame. Release the three fixation clamps [2] and pull the panel out of the bracket. 5. Disconnect the cable [3] from the panel. 1. 2. 3. 4.
4.3.3
LED Panel
2 1
1 2 2 1
G_16240_013.eps 170206
Figure 4-4 LED panel 1. 2. 3. 4. Remove the rear panel. Disconnect the cable [1] from the panel. Remove the fixation screws [2]. Remove the panel.
Mechanical Instructions
4.3.5 Small Signal Board
LC4.41E AA
4.
EN 9
1
2
3
6
2
7 3
8
G_16240_015.eps 250706
G_16240_018.eps 250706
Figure 4-6 SSB connectors 4.3.6
Figure 4-9 SSB panel Audio Amplifier Panel
4
1
G_16240_016.eps 160206
Figure 4-7 Connector screws 1. Very cautiously disconnect the LVDS cable [1] from the panel (see Figure "SSB connectors"). Notice that this cable is very fragile. 2. Disconnect the other cables [2] from the panel. 3. Remove the fixation screws [3]. 4. Remove the fixation screws [4] from the connector plate (see Figure "Connector screws"). 5. Slide the SSB module a few centimetres away from the connector plate (see Figure "SSB shield"). 6. Remove the fixation screws [5] and lift the shield from the SSB module. 7. Disconnect connector [6] (see Figure "SSB panel"). 8. Unlock the catches [7] and lift the OTC TXT panel from the SSB panel. 9. Remove the fixation screws [8]. 10. Remove the SSB panel.
3
2
G_16240_019.eps 160206
Figure 4-10 Audio amplifier panel 1. Disconnect all cables [1] from the panel. 2. Remove the fixation screws [2] from the panel. 3. Remove the panel.
5
G_16240_017.eps 250706
Figure 4-8 SSB shield
EN 10
4.3.7
4.
LC4.41E AA
Mechanical Instructions
10. Release all disconnected cables from the (mostly plastic) guidances on the frame. 11. Loosen screws [9]. 12. Lift the metal frame [10] (together with the SSB) from the plasma panel. 13. Cautiously unplug the LVDS connector [11] from the Logic Board of the Plasma panel (see Figure "Logic Board"). Be careful, as this is a very fragile connector/cable! 14. Remove the bronze bushing [12] from the stud on the plasma panel. 15. Now you can lift the Plasma display from its plastic frame. 16. If the plastic frame is damaged, replace it by a new frame, after removing the loudspeakers, the Side I/O panel, the Side Control panel, and the LED panel.
G_16240_020.eps 160206
Plasma Panel
4 3
1
2
4.4
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 positions. See Figure "Cable dressing". Be careful with the fragile LVDS cable.
Figure 4-11 Plasma panel removal (1/3)
10 9
5 6 7
10 8 9
G_16240_021.eps 170206
Figure 4-12 Plasma panel removal (2/3)
12 11
G_16240_022.eps 160206
Figure 4-13 Plasma panel removal (3/3) To remove the Plasma-panel, carry out the following steps: 1. Remove the rear cover from the set. 2. Cautiously unplug the LVDS connector [1] from the SSB panel (see Figure "LVDS connector"). Be careful, as this is a very fragile connector/cable! 3. Unplug the other connectors [2] from the SSB panel. 4. Unplug the connectors 1M03 and 1M46 [3] from the Power Supply board. 5. Unplug the power connector CN1305 [4] from the Power Supply board. 6. Unplug the connectors [5] from the Audio Panel. 7. Loosen the fixation screw [6] from the earth tab on the display. 8. Loosen the fixation screw [7] just above the SSB panel. 9. Loosen screw [8] with the cable clamp.
Service Modes, Error Codes, and Fault Finding
LC4.41E AA
5.
EN 11
5. Service Modes, Error Codes, and Fault Finding
Index of this chapter: 5.1 Test Points 5.2 Service Modes 5.3 Problems and Solving Tips Related to CSM 5.4 Service Tools 5.5 Error Codes 5.6 The Blinking LED Procedure 5.7 Fault Finding and Repair Tips How to Enter To enter SDM, use one of the following methods: · Press the following key sequence on the remote control transmitter: "062596" directly followed by the MENU button (do not allow the display to time out between entries while keying the sequence). · Short one of the "Service" jumpers on the TV board during cold start and apply mains (see Figures "Service jumper"). Then press the mains button (remove the short after startup). Caution: Entering SDM by shorting "Service" jumpers will override the +8V-protection. Do this only for a short period. When doing this, the service-technician must know exactly what he is doing, as it could damage the television set. · Or via ComPair.
5.1
Test Points
This chassis is equipped with test points. In the schematics, test points are indicated with a rectangle box around Fxxx or Ixxx, in the layouts with a half-moon. Perform measurements under the following conditions: · Television set in Service Default Mode. · Video input: Colour bar signal. · Audio input: 3 kHz left channel, 1 kHz right channel.
SDM
5.2
Service Modes
Service Default mode (SDM) and Service Alignment Mode (SAM) offer 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 possibilities of structured troubleshooting, error code reading, and software version read-out for all chassis. Minimum requirements for ComPair: a Pentium processor, a Windows OS, and a CD-ROM drive (see also paragraph "ComPair").
G_16240_023.eps 160206
Figure 5-1 Service jumper (component side)
5.2.1
Service Default Mode (SDM) Purpose · To create a predefined setting for measurements to be made. · To override software protections. · To start the blinking LED procedure. · To inspect the error buffer. · To check the life timer.
SDM
Specifications · Tuning frequency: 475.25 MHz. · Colour system: PAL-BG. · All picture settings at 50% (brightness, colour contrast, hue). · Bass, treble, and balance at 50 %; volume at 25 %. · All service-unfriendly modes (if present) are disabled. The service unfriendly modes are: Timer / Sleep timer. Child / parental lock. Blue mute. Hotel / hospital mode. Auto shut off (when no "IDENT" video signal is received for 15 minutes). Skipping of non-favourite presets / channels. Auto-storage of personal presets. Auto user menu time-out. Auto Volume Levelling (AVL).
G_16210_088.eps 200106
Figure 5-2 Service jumper (solder side)
After entering SDM, the following screen is visible, with SDM in the upper right corner of the screen to indicate that the television is in Service Default Mode.
EN 12
5.
LC4.41E AA
Service Modes, Error Codes, and Fault Finding
After entering SAM, the following screen is visible, with SAM in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.
LLLLL AAABCD X.YY/EEEEE F.GG ERR 0 0 0 0 0 OP 152 165 047 113 252 027 019
SDM
LLLLL AAABCD X.YY/EEEEE F.GG ERR 0 0 0 0 0 OP 152 165 047 113 252 027 019 . Clear . Options . Tuner . White Tone . Audio . NVM Editor . SC NVM Editor . Test Pattern . ComPair Mode Clear ?
SAM
G_16240_025.eps 200206
On Off
G_16240_026.eps 200206
Figure 5-3 SDM menu (the values are indicative) How to Navigate Use one of the following methods: · When you press the MENU button on the remote control, the set will switch on the normal user menu in the SDM mode. · On the TV, press and hold the VOLUME DOWN and press the CHANNEL DOWN for a few seconds, to switch from SDM to SAM and reverse; or press the following key sequence on the remote control transmitter: "062596" directly followed by the OSD button to switch to SAM (do not allow the display to time out between entries while keying the sequence). How to Exit Switch the set to STANDBY by pressing the mains button on the remote control transmitter or the television set. If you turn the television set off by removing the mains (i.e., unplugging the television) without using the mains button, the television set will remain in SDM when mains is re-applied, and the error buffer is not cleared. 5.2.2 Service Alignment Mode (SAM) Purpose · To change option settings. · To display / clear the error code buffer. · To perform alignments. Specifications · Operation hours counter (maximum five digits displayed). · Software version, Error codes, and Option settings display. · Error buffer clearing. · Option settings. · Software alignments (Tuner, White Tone, Geometry & Audio). · NVM Editor. · ComPair Mode switching. How to Enter To enter SAM, use one of the following methods: · Press the following key sequence on the remote control transmitter: "062596" directly followed by the OSD/ STATUS/INFO(I+) button (do not allow the display to time out between entries while keying the sequence). · Or via ComPair.
Figure 5-4 SAM menu (the values are indicative) Menu Explanation 1. LLLLL. This represents the run timer. The run timer counts normal operation hours, but does not count standby hours. 2. AAABCD X.YY. This is the software identification of the main microprocessor: A= the project name (LC04.x). B= the region: E= Europe, A= Asia Pacific, U= NAFTA, L= LATAM. C= the software diversity: · Europe: T= 1 page TXT, F= Full TXT, V= Voice control. · LATAM and NAFTA: N= Stereo non-dBx, S= Stereo dBx. · Asian Pacific: T= TXT, N= non-TXT, C= NTSC. · ALL regions: M= mono, D= DVD, Q= Mk2. D= the language cluster number. X= the main software version number (updated with a major change that is incompatible with previous versions). Y= the sub software version number (updated with a minor change that is compatible with previous versions). 3. EEEEE F.GG. This is the software identification of the Scaler: EEEEEE= the scaler sw cluster F= the main sw version no. GG= the sub-version no. 4. SAM. Indication of the Service Alignment Mode. 5. Error Buffer. Shows all errors detected since the last time the buffer was erased. Five errors possible. 6. Option Bytes. Used to read-out the option bytes. See "Options" in the Alignments section for a detailed description. Seven codes are possible. 7. Clear. Erases the contents of the error buffer. Select the CLEAR menu item and press the MENU RIGHT key. The content of the error buffer is cleared. 8. Options. Used to set the option bits. See "Options" in the Alignments section for a detailed description. 9. Tuner. Used to align the tuner. See "Tuner" in the Alignments section for a detailed description. 10. White Tone. Used to align the white tone. See "White Tone" in the Alignments section for a detailed description. 11. Audio. No audio alignment is necessary for this television set.
Service Modes, Error Codes, and Fault Finding
12. NVM Editor. Can be used to change the NVM data in the television set. See table "NVM data" further on. 13. SC NVM Editor. Can be used to edit Scaler NVM. 14. Test pattern. No function in this set. 15. ComPaIr. Can be used to switch on the television to In System Programming (ISP) mode, for software uploading via ComPair. Caution: When this mode is selected without ComPair connected, the TV will be blocked. Remove the AC power to reset the TV. How to Navigate · In SAM, select menu items with the MENU UP/DOWN keys on the remote control transmitter. The selected item will be indicated. When not all menu items fit on the screen, use the MENU UP/DOWN keys to display the next / previous menu items. · With the MENU LEFT/RIGHT keys, it is possible to: Activate the selected menu item. Change the value of the selected menu item. Activate the selected submenu. · In SAM, when you press the MENU button twice, the set will switch to the normal user menus (with the SAM mode still active in the background). To return to the SAM menu press the MENU button. · When you press the MENU key in while in a submenu, you will return to the previous menu. · On the TV, press and hold the VOLUME DOWN and press the CHANNEL DOWN for a few seconds, to switch from SAM to SDM and reverse; or press the following key sequence on the remote control transmitter: "062596" directly followed by the MENU button to switch to SDM (do not allow the display to time out between entries while keying the sequence). How to Store SAM Settings To store the settings changed in SAM mode, leave the top level SAM menu by using the POWER button on the remote control transmitter or the television set. How to Exit Switch the set to STANDBY by pressing the mains button on the remote control transmitter or the television set. If you turn the television set "off" by removing the mains (i.e., unplugging the television) without using the mains button, the television set will remain in SAM when mains is re-applied, and the error buffer is not cleared. 5.2.3 Customer Service Mode (CSM) Purpose The Customer Service Mode shows error codes and information on the TV's operation settings. The call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set. This helps the call centre to diagnose problems and failures in the TV set before making a service call. The CSM is a read-only mode; therefore, modifications are not possible in this mode. How to Enter To enter CSM, press the following key sequence on the remote control transmitter: "123654" (do not allow the display to time out between entries while keying the sequence). Upon entering the Customer Service Mode, the following screen will appear:
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5.
EN 13
1 LLLLL AAABCD X.YY/EEEEE F.GG CSM 2 CODES 0 0 0 0 0 3 OP 152 165 047 113 252 027 019 4 26PF5321/10 5 AAAAAA/B.CC 6 7 PAL 8 STEREO 9 CO 70 CL 50 BR 60 0 AVL On
G_16240_027.eps 200206
Figure 5-5 CSM menu (the values are indicative) Menu Explanation 1. Indication of the decimal value of the operation hours counter, Main/Scaler software version (see "Service Alignment Mode" for an explanation), and the service mode (CSM = Customer Service Mode). 2. Displays the last five errors detected in the error code buffer. 3. Displays the option bytes. 4. Displays the type number version of the set. 5. AAAAAA / B.CCC Firmware identification of the Pacific 3 and the OTC: AAAAAA = the firmware version of the Pacific 3 (Pixel+) B.CCC = the firmware version of the OTC (for the 1000 page TXT decoder). 6. Indicates the television is receiving an "IDENT" signal on the selected source. If no "IDENT" signal is detected, the display will read "NOT TUNED". 7. Displays the detected Colour system (e.g. PAL/NTSC). 8. Displays the detected Audio (e.g. stereo/mono). 9. Displays the picture setting information. 10. Displays the sound setting information. How to Exit To exit CSM, use one of the following methods: · Press the MENU button twice, or POWER button on the remote control transmitter. · Press the POWER button on the television set.
5.3
5.3.1
Problems and Solving Tips Related to CSM
Picture Problems Note: The problems described below are all related to the TV settings. The procedures used to change the value (or status) of the different settings are described. Picture too Dark or too Bright If: · The picture improves when you press the SMART PICTURE button on the remote control transmitter, or · The picture improves when you enter the Customer Service Mode,
EN 14
5.
LC4.41E AA
Service Modes, Error Codes, and Fault Finding
8. Press the MENU RIGHT key to store the new value. 9. Press the MENU key to exit the PERSONAL picture mode.
Then: 1. Press the SMART PICTURE button on the remote control transmitter repeatedly (if necessary) to choose PERSONAL picture mode. 2. Press the MENU button on the remote control transmitter. This brings up the normal user menu. 3. In the normal user menu, use the MENU UP/DOWN keys to select the PICTURE sub menu. 4. Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu. 5. Use the MENU UP/DOWN keys (if necessary) to select BRIGHTNESS. 6. Press the MENU LEFT/RIGHT keys to increase or decrease the value of the selected parameter. 7. Use the MENU UP/DOWN keys to select STORE. 8. Press the MENU RIGHT key to store the new value. 9. Press the MENU key to exit the PERSONAL picture mode. White Line around Picture Elements and Text If: The picture improves after you have pressed the SMART PICTURE button on the remote control transmitter, Then: 1. Press the SMART PICTURE button on the remote control transmitter repeatedly (if necessary) to choose PERSONAL picture mode. 2. Press the MENU button on the remote control transmitter. This brings up the normal user menu. 3. In the normal user menu, use the MENU UP/DOWN keys to select the PICTURE sub menu. 4. Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu. 5. Use the MENU UP/DOWN keys (if necessary) to select SHARPNESS. 6. Press the MENU LEFT/RIGHT keys to increase or decrease the value of the selected parameter. 7. Use the MENU UP/DOWN keys to select STORE. 8. Press the MENU RIGHT key to store the new value. 9. Press the MENU key to exit the PERSONAL picture mode. Snowy Picture Check CSM line 6. If this line reads "Not Tuned", check the following: · Antenna not connected. Connect the antenna. · No antenna signal or bad antenna signal. Connect a proper antenna signal. · The tuner is faulty (in this case line 2, the Error Buffer line, will contain error number 10). Check the tuner and replace/ repair the tuner if necessary. Black and White Picture If: · The picture improves after you have pressed the SMART PICTURE button on the remote control transmitter, Then: 1. Press the SMART PICTURE button on the remote control transmitter repeatedly (if necessary) to choose PERSONAL picture mode. 2. Press the MENU button on the remote control transmitter. This brings up the normal user menu. 3. In the normal user menu, use the MENU UP/DOWN keys to select the PICTURE sub menu. 4. Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu. 5. Use the MENU UP/DOWN keys (if necessary) to select COLOUR. 6. Press the MENU LEFT/RIGHT keys to increase or decrease the value of the selected parameter. 7. Use the MENU UP/DOWN keys to select STORE.
5.4
5.4.1
Service Tools
ComPair Introduction ComPair (Computer Aided Repair) is a service tool for Philips Consumer Electronics products. ComPair is a further development on the European DST (service remote control), which allows faster and more accurate diagnostics. ComPair has three big advantages: 1. ComPair helps you to quickly get an understanding on how to repair the chassis in a short time by guiding you systematically through the repair procedures. 2. ComPair allows very detailed diagnostics (on I2C level) and is therefore capable of accurately indicating problem areas. You do not have to know anything about I2C commands yourself because ComPair takes care of this. 3. ComPair speeds up the repair time since it can automatically communicate with the chassis (when the microprocessor is working) and all repair information is directly available. When ComPair is installed together with the Force/SearchMan electronic manual of the defective chassis, schematics and PWBs are only a mouse click away. Specifications ComPair consists of a Windows based fault finding program and an interface box between PC and the (defective) product. The ComPair interface box is connected to the PC via a serial (or RS-232) cable. For this chassis, the ComPair interface box and the TV communicate via a bi-directional service cable via the service connector(s). The ComPair fault finding program is able to determine the problem of the defective television. ComPair can gather diagnostic information in two ways: · Automatically (by communicating with the television): ComPair can automatically read out the contents of the entire error buffer. Diagnosis is done on I2C/UART level. ComPair can access the I2C/UART bus of the television. ComPair can send and receive I2C/UART commands to the micro controller of the television. In this way, it is possible for ComPair to communicate (read and write) to devices on the I2C/UART buses of the TV-set. · Manually (by asking questions to you): Automatic diagnosis is only possible if the micro controller of the television is working correctly and only to a certain extent. When this is not the case, ComPair will guide you through the fault finding tree by asking you questions (e.g. Does the screen give a picture? Click on the correct answer: YES / NO) and showing you examples (e.g. Measure test-point I7 and click on the correct oscillogram you see on the oscilloscope). You can answer by clicking on a link (e.g. text or a waveform picture) that will bring you to the next step in the fault finding process. By a combination of automatic diagnostics and an interactive question / answer procedure, ComPair will enable you to find most problems in a fast and effective way.
Service Modes, Error Codes, and Fault Finding
How to Connect This is described in the chassis fault finding database in ComPair.
TO UART SERVICE CONNECTOR TO I2C SERVICE CONNECTOR
LC4.41E AA
5.
EN 15
Note: To use the LVDS tool, you must have ComPair release 2004-1 (or later) on your PC (engine version >= 2.2.05). For every TV type number and screen size, one must choose the proper settings via ComPair. The ComPair file will be updated regularly with new introduced chassis information. How to Order · LVDS tool (incl. two LVDS cables: 31p and 20p): 3122 785 90671. · LVDS tool Service Manual: 3122 785 00810. · LVDS cable 30p (for LC4.3): 3122 785 90821 (available soon). · LVDS cable 41p -> 31p for HD PDPs (dual -> single LVDS): 3122 785 90831 (available soon).
PC
VCR
Power 9V DC
I2C
E_06532_021.eps 180804
5.5
Figure 5-6 ComPair interface connection How to Order · ComPair order codes (EU/AP/LATAM): · Starter kit ComPair32/SearchMan32 software and ComPair interface (excl. transformer): 3122 785 90450. · ComPair interface (excl. transformer): 4822 727 21631. · Starter kit ComPair32 software (registration version): 3122 785 60040. · Starter kit SearchMan32 software: 3122 785 60050. · ComPair32 CD (update): 3122 785 60070 (year 2002), 3122 785 60110 (year 2003 onwards). · SearchMan32 CD (update): 3122 785 60080 (year 2002), 3122 785 60120 (year 2003), 3122 785 60130 (year 2004). · ComPair firmware upgrade IC: 3122 785 90510. · Transformer (non-UK): 4822 727 21632. · Transformer (UK): 4822 727 21633. · ComPair interface cable: 3122 785 90004. · ComPair interface extension cable: 3139 131 03791. · ComPair UART interface cable: 3122 785 90630. Note: If you encounter any problems, contact your local support desk. 5.4.2 LVDS Tool Introduction This service tool (also called "ComPair Assistant 1") may help you to identify, in case the TV does not show any picture, whether the Small Signal Board (SSB) or the display of a Flat TV is defective. Furthermore it is possible to program EPLDs with this tool (Byte blaster). Read the user manual for an explanation of this feature. Since 2004, the LVDS output connectors in our Flat TV models are standardised (with some exceptions). With the two delivered LVDS interface cables (31p and 20p) you can cover most chassis (in special cases, an extra cable will be offered). When operating, the tool will show a small (scaled) picture on a VGA monitor. Due to a limited memory capacity, it is not possible to increase the size when processing high-resolution LVDS signals (> 1280x960). Below this resolution, or when a DVI monitor is used, the displayed picture will be full size. Generally this tool is intended to determine if the SSB is working or not. Thus to determine if LVDS, RGB, and sync signals are okay. How to Connect Connections are explained in the user manual, which is packed with the tool. 5.5.3
Error Codes
The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right.
5.5.1
How to Read the Error Buffer You can read the error buffer in 3 ways: · On screen via the SAM (if you have a picture). Examples: ERROR: 0 0 0 0 0 : No errors detected ERROR: 6 0 0 0 0 : Error code 6 is the last and only detected error ERROR: 9 6 0 0 0 : Error code 6 was detected first and error code 9 is the last detected (newest) error · Via the blinking LED procedure (when you have no picture). See "The Blinking LED Procedure". · Via ComPair.
5.5.2
How to Clear the Error Buffer The error code buffer is cleared in the following cases: · By using the CLEAR command in the SAM menu: To enter SAM, press the following key sequence on the remote control transmitter: "062596" directly followed by the OSD/i+ button (do not allow the display to time out between entries while keying the sequence). Make sure the menu item CLEAR is selected. Use the MENU UP/DOWN buttons, if necessary. Press the MENU RIGHT button to clear the error buffer. The text on the right side of the "CLEAR" line will change from "CLEAR?" to "CLEARED" · If the contents of the error buffer have not changed for 50 hours, the error buffer resets automatically. Note: If you exit SAM by disconnecting the mains from the television set, the error buffer is not reset. Error Codes In case of non-intermittent faults, write down the errors present in the error buffer and clear the error buffer before you begin the repair. This ensures that old error codes are no longer present. If possible, check the entire contents of the error buffer. In some situations, an error code is only the result of another error and not the actual cause of the problem (for example, a fault in the protection detection circuitry can also lead to a protection).
EN 16
5.
LC4.41E AA
Service Modes, Error Codes, and Fault Finding
Table 5-1 Error code overview Error Error Description 0 1 2 3 4 No Error Mis-match of TV (Hercules) SW and Scaler SW +12V from PSU error Plasma I2C error (only for certain plasma sets) I2C error while communicating with the Genesis Scaler +5V protection Software versions PSU N.A. 7801 N.A. A N.A. B7 + B8 Check Item Diagram Example of error buffer: 12 9 6 0 0 After entering SDM, the following occurs: · 1 long blink of 5 seconds to start the sequence, · 12 short blinks followed by a pause of 1.5 seconds, · 9 short blinks followed by a pause of 1.5 seconds, · 6 short blinks followed by a pause of 1.5 seconds, · 1 long blink of 1.5 seconds to finish the sequence, · The sequence starts again with 12 short blinks.
5.7
Fault Finding and Repair Tips
Notes: · It is assumed that the components are mounted correctly with correct values and no bad solder joints. · Before any fault finding actions, check if the correct options are set.
5 6
7752
B6 B1 + B18 + B19
General I2C error; 1102, 7L01, 7M00 communication between ADC, analogue tuner, and/or Columbus I2C failed I2C error while communicating with ADC I2C error while communicating with the Scaler EEPROM 7L01 7C01
7 8
B18 B11
5.7.1
NVM Editor In some cases, it can be handy if one directly can change the NVM contents. This can be done with the "NVM Editor" in SAM mode. With this option, single bytes can be changed. Caution: · Do not change the NVM settings without understanding the function of each setting, because incorrect NVM settings may seriously hamper the correct functioning of the TV set! · Do not change the Scaler NVM settings, as this will hamper the DVI / HDMI functionality of the TV set! · Always note down the existing NVM settings, before changing the settings. This will enable you to return to the original settings, if the new settings turn out to be incorrect. Table 5-2 NVM editor overview Hex Dec 10 0 Store? Description Existing value New value
9
7207 I2C error while communicating with the Hercules EEPROM (NVM for TV). Remark: when the Hercules EEPROM is defective, the Hercules should operate with its default values. I2C error while 1102 communicating with the PLL tuner I2C error while communicating with the 3D combfilter IC-7M00 (Columbus) I2C error while communicating with iBoard uP (only iTV sets) 7M00
B2
10
B1
11
B19
12
N.A.
N.A.
.ADR .VAL .Store 5.7.2
0x000A 0x0000
13
I2C error while N.A. communicating with the HDMI decoder IC-7D03 (only for NAFTA and AP) Read-write error with the Scaler SDRAM 7B01
N.A.
Load Default NVM Values In case a blank NVM is placed or when the NVM content is corrupted, default values can be downloaded into the NVM. (For empty NVM replacement, short the SDM with a jumper and apply the mains voltage. Remember to remove the jumper after the reload is completed). After the default values are downloaded, it will be possible to start up and to start aligning the TV set. This is no longer initiated automatically; to initiate the download the following action has to be performed: 1. Switch "off" the TV set by disconnecting the AC Power plug. 2. Short circuit an SDM jumper (keep short-circuited). 3. Press P+ or Ch+ on the local keyboard (and keep it pressed). 4. Switch on the TV set via the AC Power plug. 5. Keep pressing the P+/Ch+ button until the set has started up and the SDM is shown. Alternative method: 1. Go to SAM. 2. Select NVM Editor (not SC NVM Editor). 3. Select ADR (address) to 1 (dec). 4. Change the VAL (value) to 170 (dec). 5. Store the value. 6. Disconnect the mains plug and wait for a few seconds. 7. Reconnect the mains plug and wait until the set goes into its standby mode (red LED lights up). 8. Restart the set.
14 15 16
B10 T B20 + B21 N.A.
I2C error while 7001 communicating with the OTC 7N00 I2C error while communicating with EPLD or Pacific III I2C error while N.A. communicating with the Digital Module (only for digital sets)
17
5.6
The Blinking LED Procedure
Using this procedure, you can make the contents of the error buffer visible via the front LED. This is especially useful when there is no picture. When the SDM is entered, the front LED will blink the contents of the error-buffer: · The LED blinks with as many pulses as the error code number, followed by a time period of 1.5 seconds, in which the LED is off. · Then this sequence is repeated. Any RC5 command terminates this sequence.
Service Modes, Error Codes, and Fault Finding
5.7.3 Flash New Scaler Software When you need to flash new scaler software, follow the instructions in ComPair. Make sure you put the set in one of the Service Modes, SDM/SAM/CSM, before you start flashing. This reduces the risk of the set hanging during the flashing procedure. 5.7.4 Tuner and IF No Picture in RF Mode, but there is a Noise Raster 1. Check whether picture is present in AV. If not, go to Video processing troubleshooting section. 2. If present, check if the Option settings are correct. 3. Check if all the supply voltages are present (3.3/5/8/12/33 V). 4. Check if the I2C lines are working correctly (3.3 V). 5. Manually store a known channel and check if there is IF output at Tuner pin 11. 6. Check the tuning DC voltage at pin 2 of the Tuner. The DC voltage should vary according to the frequency/channel being chosen. 7. If the tuning voltage is OK, check the tuner output, pin 11. 8. If it has no output, the Tuner may have a defect. Change the Tuner. Sound in Picture Problem for L' System (rolling horizontal lines) 1. Check whether AGC L' in SAM mode is set to 0. 2. If yes, align the set to correct value. Required System is not Selected Correctly Check whether a Service jumper (#4204 & 4205, 0805 size) is present. If yes, remove it. 5.7.5 Video Processing No Power 1. Check +12 V and 3V3 at position 1J02. 2. If no supply, first check the connector 1J02. 3. If the connector is correct, check the power supply board. Power Supply is Correct, but no Green LED 1. Check if the connectors 1K00 are properly inserted. 2. If they are inserted correctly, check if the 3V3 is present. No Picture Display (blank screen with correct sound output) 1. Check whether the user menu is visible. 2. If the user menu is OK, activate teletext mode. 3. If teletext is OK, the problem is in the ADC (B18) & Columbus 3D combfilter (B19), if present (depending on model, see also paragraph "Teletext Path" in chapter 9). Note: For fault finding purposes, it is important to know the following: in Pixel Plus and Digital Crystal Clear models, which have an ADC (B18) and Columbus 3D combfilter (B19), the digital input of the scaler is used for the digital video path (Hercules output), whereas the analogue RGB input (analogue input of the scaler) is only used for teletext. This means that no mixed mode (video plus teletext simultaneously) is possible. If there is sound and teletext, but no video and user menu (blank screen), the digital path (Hercules - ADC - Columbus - Scaler) is faulty. If there is sound but no teletext, the back-end part (Scaler - PDP panel) is faulty. In Crystal Clear models, which do not have an ADC and Columbus, the RGB path (analogue input of scaler) is used for both video and teletext. No TV, but PC is Present 1. Check if Hsync_SDTV and Vsync_SDTV are present at pin 1 & pin13 of 7E03. 2. If they are present, check teletext output.
LC4.41E AA
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EN 17
3. If there is no teletext output, the IC TDA150xx may be defect. 5.7.6 Power Supply Check Fuse The power supply (various models are used) contains one fuse near the AC input connector X002. 1. Check with power supply in "off" state by means of ohmic measurement. 2. Fuse X102 may open in case of severe lightning strikes and/or failures in the power supply. 3. Check the standby signal at pin 10 of X200. ON is HIGH, OFF is LOW. During standby mode only the 3V3 is present at pin 10. Protections Concept on Power Supply Board (two models) 1. 12 V output (pin 8 of X200): Short-circuit protected by 2.5 A fuse X610. Over-voltage protection when output voltage is more than 40% above nominal value. 2. Vaudio output (+18 or +24 V, depending on power supply model used); (pin 1 of X200): Short-circuit proof (+18 V version has 2.5 A fuse X660). Over voltage protection when output voltage is more than 40% above nominal value. 3. 3V3STBY output (pin 3&4 of X200): Short-circuit proof with auto-restart. Over voltage protection when output voltage is more than 40% above nominal value. 4. 24 V output (for inverter X520 & X530): Short-circuit proof with auto-restart. Over voltage protection when output voltage is more than 40% above nominal value. Standby Mode 1. Apply a 12 ohm load resistor of sufficient power rating to all outputs mentioned above (+12 V, +18/ 24 V, +3V3 and +24 V). Connect the STBY pin (pin 10 of X200) to logical "L" (low), i.e. to GND. 2. Over an input voltage range of 90 VAC to 276 VAC only the +3V3 STBY output shall be up. Normal Mode: 1. Apply a 12 ohm load resistor of sufficient power rating to all outputs mentioned above (+12 V, +18/ 24 V, +3V3 and +24 V). Connect the STBY pin (pin 10 of X200) to logical "H" (high), i.e. to the +3V3 STBY output via a 2,2 k pull up resistor. 2. Over an input voltage range of 90 VAC to 276 VAC all outputs shall be up. The voltage on the +3V3 STBY output shall be 3.3 V over the entire input voltage range. The voltage on the big 400 V capacitor on the power supply should also be 400 V ± 10%.
EN 18
5.
LC4.41E AA
Service Modes, Error Codes, and Fault Finding
Personal Notes:
E_06532_012.eps 131004
Block Diagrams, Test Point Overviews, and Waveforms
LC4.41E AA
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19
6. Block Diagrams, Test Point Overviews, and Waveforms
Wiring Diagram 42" LG
WIRING 42" FHP
8902
8903
C AUDIO
PLASMA PANEL
2P3 1M03 9P 1M01 7P 1M02
RIGHT SPEAKER
10P P5
CN308 2P3
CN05 4P
PDP Y-MAIN DRIVING BOARD
PDP POWER SUPPLY
CN07 5P CNO6 5P
2P3 1M04
PDP X-MAIN DRIVING BOARD LEFT SPEAKER
1M02 5P
8302
1M03 10P 8900
1M46 11P
1M10 3P
8P P1
P4 4P
8322 8337 8P06
Shielding
8152 11P 1J01
1442 14P
31P 1N17
10P 1J00
3P 1J03
9P 1J04
1K00 6P
B SSB
8321
8870
E CONTROL BOARD
T
1000 14P
OTCFLASH
1N20 3P
1K04 11P
31P LVDS 8000
D SIDE I/O
8136
1K02 3P
FILTER
TUNER AC/Supply
8187 8188(UK)
1M01 3P
J
LED PANEL
6P 1M01
8101
11P 1M36
G_16240_005.eps 260906
Block Diagrams, Test Point Overviews, and Waveforms
LC4.41E AA
6.
20
Wiring Diagram 42" & 50" SDI
WIRING 42" & 50" SDI
8903
C AUDIO
2P3 1M03 9P 1M01 8152
PLASMA PANEL
2P3 1M04
8902
8P9
9P10 CN8003
8302
RIGHT SPEAKER
10P 7P 4P CN1M03 CN1M02 CN1M10
5P CN8005
PDP Y-MAIN DRIVING BOARD
PDP POWER SUPPLY
PDP X-MAIN DRIVING BOARD
7P 1M02
LEFT SPEAKER
CN5003
11P CN1M46
CN8006 10P
CN8001 2P3
8900 8322 8337 8P06
Shielding
10P CN2026 11P 1J01
1442 14P
31P 1N17
10P 1J00
3P 1J03
9P 1J04
1K00 6P
B SSB T
8321
8870
OTCFLASH
1N20 3P
E CONTROL BOARD
1000 14P
1K04 11P
31P LVDS 8000
8P11 CN4004
9P12
8136
D SIDE I/O
FILTER
1G03 32P 5P AC/Supply TUNER
1K02 3P
8187 8188 UK
1M01 3P
J
LED PANEL
6P 1M01
8101 G_16240_006.eps 140206
11P 1M36
Block Diagrams, Test Point Overviews, and Waveforms
LC4.41E AA
6.
21
Block Diagram Supply FHP
SUPPLY 42" FHP A2 FILTERS STANDBY
0308 2 1 MAINS INPUT 95-264Vac 1400 T6.3A 5401 5005 5402 1 MAINS FILTER 2 3450 +T 1 3451 +T 2 3452
6605 6606
A5 PRECONDITIONER
-T 3036 -T 100-230VAC2 100-230VAC1 6600 GBU8J 16 F601 1 2 4 6
5612
A6 LLC SUPPLY
3090 3092 5600 25V_HOT 14 F600 400V_HOT
PROTECTION
7013
3089
7093 LM317T
IN OUT
F001 +5V_INT_SW
3095 2053
6611
3096
7090 7091 7092
COM
4 3
1 2
7003 TCET1102
6111 SW25V_HOT 3082
3081 6002
LATCH
A3 DC_PROT A3
1002 7 F293 6 5 4 3 5292 VSND_NEG F294 2 1 TO 1M02
RELAY CONTROL
3
1450
4
3
1460
4 7608 3608 3606 3610
7610
3097
1084 400V_HOT T1.0A
5290
6291
2294
5293 VSND_POS
6512 6513
2294
ACTIVATING
ACTIVATING DELAY F608 A6 3663
3609 3666
5291
GND_SND
C
PDP AUDIO
SUPPLY_ON
400V_HOT
6510
6511
- CONTROL 2663 6661 7661 MC34063D 6
3675
VCC SWE
5001 6 F003 4 7
A5
6503
3509 3508
2505
SW25V_HOT
2664
7001 MC34067P 15
VCC OA SOFTSTART CONTROL & CURRENT PROTECTION
I504 25V_HOT
I613
3660
14
7007 7020 HIGH SIDE DRIVE 7008 7021 LOW SIDE DRIVE
6642 7005 I038 F005 3 7006 I057 6 5002 16 14 12 11 10
3037
6044 F016 70-90V
3603
3506
6665 2 5660 5 3677
BIAS
2662
F500 2
6 7 8 4 9
6504 F503
3605
3659
3507 3035 3026
F502
3675
5500 +9V_STBY
I620
7500 TNY256P
6501 6502 6506
6505
5503
+5V_STBY_SW 400V_HOT 7461
6507
I510 5 1
3679 3682 I618
3651 3671 3104
6642
3 3050 I083 6 12 9 10 11 1082 T2.5A 1083 T2.5A
6045 2029 6021 7010 7011
6042
I508 4
DRAIN
+5V_INT_SW
GATE 5 MULT
7650 MC33368P 12 VCC 7 ZCDET 6 CS 3 FB 11
1 SWC 7 IS 8 DCOL
3 OSCCC 6 EAO FI 10 8 lp 12 OB 7 ln
3072
VTUN VB
3661
3604
+T
F004 2
10 9
F609 7641 I625 7642
9
F610
5004 16 14 2045 3039 VS
7042
3641 7640
EN|UV 2 SOURCE
+30V
3501 4 1M05 1 2 3 1 2
7501 TCET1102
VCC
6507
7540
IN OUT COM
+3V3_STBY_SW VCC I517 +3V3_STBY_SW
2 3 4 5 6 7 8 9 HOT GROUND TO CN11 PDP DISPLAY 4 3 1 2
7002 TCET1102
400V_HOT
1 K 7502 A 3
3505
VRA I514 A2 A6 A3 A3 VRS VCEGO VSAGO
3057
A7
0311 1
R2
3503
6029
6012
3022 3080
VRS FEEDBACK
VRS
A2
IBO SUPPLY (RES) HOT GROUND COLD GROUND
COLD GROUND
A3 PROTECTIONS
A7 AUX SUPPLY
1260 +30V T2A 5260
7260 L4973V3.3 7 REGULATOR 2 8 VCC OUT 3 12 VFB
- +12V-SUPPLY 5268
3269 2269
+12V
+12V
1M10 1 2 3 4
TO 1M10
AL
AMBI LIGHT OR 1301
- VS PROTECTION +5V_INT_SW 3308
- VA PROTECTION -
- VCC PROTECTION -
- 12V PROTECTION -
- DC_PROT POK I101 7117 7110 7112 TEA1507P CONTROL 1 DRAIN 8 VCC 5 ISENCE DRIVER GND 3 DEM CTRL 6 2 4 3113 6111
3268
K3
IBO ZAPPER
- VA-SUPPLY 3118 5121
2121
A7 70-90V A6
1110 T5A
VA
70-90V
3300 3311
VA
VCC
3320
+12V
3302 3361 3358 3359
DC_PROT
1M46 1 2 +8V6 VCC +5V_STBY_SW VTUN +12V +9V_STBY 3 5 6 7 8 9 10 TO (1J01) 1M46
3107÷3109
3117
- 2.5 Vref +5V_INT_SW
3304
3301
3103
3116
7362
6333 6340
6364
B16
SSB
6312
3312
6321
3321
7308 3+4 7 6 1
7308 1+2 11 2V5
3313
7333 3+4 7 6 1
7333 1+2 11 2V5
3334
6313
6334
2V5
3306 3324
6362
6322
6341
6365
10 9 8
13 2V5
3322
10 9 8
13 3364
3340
3333
I105
I106 +5V_INT_SW
6133
1 K 7304 A 3
5 4
2
14
5 4
2
14
3102
R2
6113 2114
3115
+30V VA
3111
0323 1 3 4 5 TO CN23 6 PDP DISPLAY 8 9 10
3317
3323
3307
3335
+5V_INT_SW 3388 3389 7389 +12V_OVP RES 1200
3206 3209
7121 7130
VCC
4 3
1
3111
VRA
7120 TCET1102
VA Adj.
A2 VSA_CONTROL A3 VS
+9V_STBY 7375 7376 VSAGO A2 +5V_INT_SW 7352 7351 I905 VCEGO A2 VCEGO +5V_INT_SW 7341 7004 7348 LATCH LATCH A6 STANDBY VCC_GO A7
3392 3349 3373
2
- VCC-SUPPLY 5220 1 7212 TEA1507P CONTROL 8 DRAIN 3 CTRL 4 DEMAG 6 I214 DRIVE 1 VCC GND I236 7217 3149 7
3218 5229
VSA CONTROL
VSA_CONTROL A7 T2A
14 13
6226 5225 VCC
+5V_INT_SW A6 7363 7366-1 IAK BUFFER +5V_STBY_SW
3393
I213 VCC_GO
3202
7200
4 5
12 11 8
6230
7230
IN OUT COM
+8V6
VA VCC
0342 1 3 4 TO CN42 5 PDP DISPLAY (RES) 7
I208 7202
3228
3229
F116 VCC
7391 7366-4 SUPPLY_ON A6
1M03 1 2 3 4 5 6 STANDBY 7 8 9 10 TO 1M03(1J00)
6211 I220 6202 3203
3220 3 2
7220 TCET1102
1 K 7502 6142 VA 7050
3053
3224
3214
6213
3213
4
1
R2 VA VS
A 3
0352 1 4 5 7 TO CN52 PDP DISPLAY (RES)
B16
PDP DISPLAY
+5V_INT_SW
VS
I200 3084 +5V_INT_SW I202 POK SEQUENCE DISCHARGE 6050
7326 7327 6325 +8V6
3328
POWER_OK POK
+T
7052
I201
8V6 UNDERVOLTAGE PROTECTION
2021
VCC
F_16040_022.eps 140606
Block Diagrams, Test Point Overviews, and Waveforms
LC4.41E AA
6.
22
Block Diagram Video
VIDEO B1 TUNER & VIF
1152 RF UV1318S IN +VTUN +5SW_a 1154 11 2156 IF-TER 1 5 TUNER VIF2 25
B2 HERCULES
7217 TDA15021H 4 VIF1 24 Sound Traps CVBS1 RGB Matrix Blue & Black Strech Gamma Corr. G_OSD R_OSD Fast Blanking B_OSD RO GO BO 85 86 87 RO GO BO 7210 EF 7208 EF 7209 EF
B13 MUX-SYNC INTERFACE
FE00 R_OTC_SDTV FE01 G_OTC_SDTV FE02 B_OTC_SDTV SC1_R_CVI_Pr_IN For sets without OTC-Flash (26", 32") B13 SC1_G_CVI_Y_IN B13 SC1_B_CVI_Pb_IN 1 5 9 I_PC_HD_SEL 7 14 25 11 B-PB-ADC B_PB+ G-Y-ADC G_Y+ 3 17 R-PR-ADC R_PR+ 27 7E01 SOG
B7 SCALER
7801 GM1501
B20 PACIFIC3
6
7
C3 LVDS_VCC D2 C2 B2 LVDSALVDSA+ LVDSBLVDSB+ LVDSCLVDSC+
1N16 1 11 12 13 TO DISPLAY (26" & 32") TO DISPLAY (LCD 37" & 42", PDP 42" & 50") 14 15 16 17 18 19 20 24 25 26 21 22
4
5
1
3154
RF_AGC
31 DC
AC
AGC Detect
HERCULES
Video Switch + Control c QSS/FM QSS Mixer AM Demod. AM SAT Skin Tone U/V Tint Saturation
SCL
SDA
1156 1
4
SIF1
29 30
B3 SYNC INTERFACE
YUV
B13
5 SIF2
ANALOG INPUT PORT
SCALER
LVDSDLVDSD+
B15A SCART ANALOG IO
SCART 2 1
B15B 4G04 1G02 20 7G11
7436-2
SC2_Y_IN FRONT_Y_CVBS_IN SC2_C_IN FRONT_C_IN
2 14 1 12 15 SC2_AV3_Y_IN 13 4G31 9 B15B 7206 EF
SC2_AV3_C_IN
59
cvbs/y
Dig. 2H/4H Combfilter Y Delay Adj.
Yint
SCAVEM on text
LVDSCLK4 Vsync_SDTV 7E04 Vsync_SDTV Hsync_SDTV 5 1 8 4 AVSYNC AHSYNC L3 L4 OR LVDSCLK+
Peaking SCAVEM U/V Delay
Vertical & East-West Geometry YUV in/out
VDRB
22 VSYNC
3
B3 64 Chroma PAL/NTSC/ SECAM Decoder & Baseband Delay Uint H/V Sync Sep H-OSC H-Shift H-Drive CVBS/Y 7436-1 HOUT 67 HOUT 1 2 Hsync_SDTV B3
15 RGB-R|YC-C_IN
8 STATUS_2_IN|OUT
CVBS_COMB
B2
B2
AV2_DMMI_SW
51 52
B9 SCALER
GRAPHIC ZOOM LVDS_VCC AE16 AF16 AE15 AF15 DISPLAY TIMING GEN. AE14 AF14 AF12 AF11 AF13 AE12 TXB0TXB0+ TXB1TXB1+ TXB2TXB2+ TXB3TXB3+ TXBCTXBC+ 4N02 4N01 4N04 4N03 4N06 4N05 4N10 4N09 4N08 4N07 TXO0TXO0+ TXO1TXO1+ TXO2TXO2+ TXO3TXO3+ TXOCTXOC+ 1N11 1N12 LVDSALVDSA+ LVDSBLVDSB+ LVDSCLVDSC+ LVDSDLVDSD+ LVDSCLKLVDSCLK+ 1N17 1 11 10 12 14 13 15 19 18 20 27 26 28 22 21 23
Vint
19
7G02 EF
SC2_CVBS_MON_OUT
4G18
SC2_Y_IN_1
7219 13 12 9
58
B10 SDRAM
7B01 K4D263238F BRIGHTNESS/CONTRAST/HUE/SAT +2V5_DDR 95 OSD CONTROLLER FSDATA SDRAM 1Mx32x4 FSADDR OUT BLENDER FRAME STORE CONTROL
21 EXT 2
14
48 INSSW3
RGB/Pr Pb Insert YUV Interface
1N13
B/Pb-3
R/Pr-3
VOUT
YOUT
G/Y3
55 43
UOUT
B7 SC2_OUT_SW 7G01 EF
UIN
VIN
1G01 19
SC1_CVBS_RF_OUT SC1_CVBS_IN
77
78
79
80
74
75
76
70
71
YIN
B18 ADC
72 7L01 P3563M-LF 2 3 7L61/7L62 EF 7L51/7L52 EF 7L71 EF
1N14
SCART 1 1
20
1N15
SC1_CVBS_IN
B19 COLUMBUS
(Dig. PAL/NTC Comb) 7M00 T6TU5XBG
B15B DMMI
SC1_CV1_DMMI_R_Pr_IN SC1_CV1_DMMI_G_Y_IN SC1_FBL_IN_1
16 15 11 7
N.C.
SC1_FBL_IN CVI_Pr_IN CVI_Y_IN CVI_Pb_IN STATUS_1
SC1_FBL_IN_1
B2
SC1_CV1_DMMI_B_Pb_IN
4G14 4G15 4G17 4G16
SC1_CV1_DMMI_R_Pr_IN CVBS_COMB
B2,B13
INTF_V_OUT INTF_U_OUT INTF_Y_OUT
11 6 A/D CONV.
COL_Di(1-9) COLUMBUS DIGITAL COMB FILTER COL_YA(1-9)
COL_Do(1-8) VIDEO ZOOM OR COL_YB(1-8) 7N00 T6TF4AFG TXB0+ TXB0TXB1+ TXB1TXB2+ TXB2TXB3+ TXB3TXBC+ TXBC14 15 4 SC1_R_CVI_Pr_IN SC1_G_CVI_Y_IN SC1_B_CVI_Pb_IN B13 B13 B13 UART INTERFACE 9 RGB|CVI_HDA_SEL B7 MICRO CONTROLLER 29 28 32 31 35 34 41 40 37 38 LVDS PACIFIC3 103 102 101 100 99 98 93 92 96 95 TXO0TXO0+ TXO1TXO1+ TXO2TXO2+ TXO3TXO3+ TXOCTXOC+
SC1_CV1_DMMI_G_Y_IN
B2,B13
7L72
VIN VOUT COM
SC1_CV1_DMMI_B_Pb_IN
B2,B13
9
B2
SCL SDA
EXT 1
38
7M01 MSM56V16
B15b
B15b
B15b
D
SIDE AV
B17 SIDE
CONNECTIONS
T
B3 (OTC)
B15b
DRAM 512Kx16x2
OTC-FLASH (FOR 1000pg TXT)
B3 SYNC INTERFACE
(TO OTC-FLASH)
B15A SCART