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Colour Television
Chassis
LC4.3E
AB
F_15800_000.eps 290906
Contents
Page
Contents
Page
52-61 52-61 52-61 52-61 52-61 83-92 94 96 98 99 107-108 107-108 107-108 107-108 107-108 107-108 107-108
1. Technical Specifications, Connections, and Chassis Overview 2 2. Safety Instructions, Warnings, and Notes 5 3. Directions for Use 7 4. Mechanical Instructions 8 5. Service Modes, Error Codes, and Fault Finding 11 6. Block Diagrams, Testpoint Overviews, and Waveforms Wiring Diagram 21 Block Diagram Video 22 Block Diagram Audio 23 Testpoint Overview Small Signal Board 6093.1 24 Testpoint Overview Small Signal Board 6141.1 25 Block Diagram IBO Zapper 26 Testpoint Overview IBO Zapper (Bottom Side) 27 I2C Overview 28 Supply Voltage Overview 29 7. Circuit Diagrams and PWB Layouts Diagram SSB: Tuner and VIF (B1) 30 SSB: Hercules (B2) 31 SSB: Sync Interface (B3) 32 SSB: Audio Delay Line (Res) (B4) 33 SSB: Audio Processing (B5) 34 SSB: DC-DC Converter (B6) 35 SSB: Diversity Tables B1-B6 36 SSB: Scaler (B7) 37 SSB: Scaler (B8) 38 SSB: Scaler Interface (B9) 39 SSB: SDRAM (B10) 40 SSB: Flash / Control (B11) 41 SSB: MUX-Sync Interface (B13) 42 SSB: Digital I/O (B14) 43 SSB: Scart Analogue I/O (B15) 44 SSB: Top Connectors (B16) 45
PWB 52-61 52-61 52-61 52-61 52-61 52-61 52-61 52-61 52-61 52-61 52-61 52-61 52-61 52-61 52-61
8. 9.
10. 11.
SSB: Side Connectors (B17) 46 SSB: ADC (B18) 47 SSB: Columbus (B19) 48 SSB: EPLD (B20) 49 SSB: EPLD (B21) 50 SSB: Diversity Tables B9-B21 51 SSB: 61411 (B1-B21) 62-82 Class D Audio Amplifier (C) 93 Keyboard Control Panel (E) 95 Side A/V Panel (G) 97 IR-LED and Light Sensor Panel (J) 99 IBO Zapper: Mojo (K1) 100 IBO Zapper: Flash Memory (K2) 101 IBO Zapper: Power Supply (K3) 102 IBO Zapper: Interface (K4) 103 IBO Zapper: Analog Back End (K5) 104 IBO Zapper: Front End (K6) 105 IBO Zapper: Common Interface (K7) 106 Alignments 109 Circuit Descriptions, Abbreviation List, and IC Data Sheets 114 Abbreviation List 116 IC Data Sheets 119 Spare Parts List 121 Revision List 131
© Copyright 2006 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 0669 BG CD Customer Service
Printed in the Netherlands
Subject to modification
EN 3122 785 15352
EN 2
1.
LC4.3E AB
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). - Mains frequency (Hz) Ambient conditions: - Temperature range (°C) - Maximum humidity Power consumption - Normal operation (W) - Stand-by (W) Dimensions (WxHxD cm) - 26PF5520D/10 - 32PF5520D/10 - 32PF7520D/10 Weight (kg) - 26PF5520D/10 - 32PF5520D/10 - 32PF7520D/10 : 50 / 60
: +5 to +40 : 90% R.H.
: 96 : <1 : : 80.45 x 47.7 x 22.2 : 92.4 x 55.0 x 22.2 : 92.4 x 55.0 x 22.2 : : 16 : 18.2 : 18.2
1.1
1.1.1
Technical Specifications
Vision Display type Screen size - 26PF5520D/10 - 32PF5520D/10 - 32PF7520D/10 Resolution (HxV pixels) Contrast ratio Light output (cd/m2) Response time (ms) - 26PF5520D/10 - 32PF5520D/10 - 32PF7520D/10 Viewing angle (HxV degrees) - 26PF5520D/10 - 32PF5520D/10 - 32PF7520D/10 Tuning system Reception standards : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : LCD, IPS 26" (66 cm), 16:9 32" (82 cm), 16:9 32" (82 cm), 16:9 1366 x 768 600:1 500 16 18 18 178x178 176x176 176x176 PLL Analogue & digital terrestrial TV (DVB-T) PAL B/G, D/K, I SECAM B/G, D/K, L/L' PAL B/G; SECAM L/L' NTSC M/N 3.58, 4.43 VGA (640x480) MAC (640x480) SVGA (800x600) XVGA (1024x768) WXGA (1280x768) 640x480i - 1fH 720x576i - 1fH 640x480p - 2fH 720x576p - 2fH 1920x1080i - 2fH 100 presets VHF UHF S-band Hyper-band 1.2.1
1.2
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
TV Colour systems Video playback Supported computer formats
CI
S-Video Video Audio L R
DATA
SPDIF
Supported video formats
F_15270_084.eps 300505
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
Presets/channels Tuner bands
H H j j
1.1.2
Sound Sound systems : : : : : : : : FM-mono FM-stereo B/G NICAM B/G, D/K, I, L AV Stereo 2x5 2 x 15 2 x 15 jq jq jq
Maximum power (WRMS) - 26PF5520D/10 - 32PF5520D/10 - 32PF7520D/10 1.1.3 Miscellaneous Power supply: - Mains voltage (VAC)
ot
: 95 - 240
Technical Specifications, Connections, and Chassis Overview
1.2.2 Rear Connections
AERIAL IN
EXT 2
1 9 17 8 16 24 C1 C2 C5 C3 C4
LC4.3E AB
1.
EN 3
EXT1: Video RGB - In, CVBS - In/Out, Audio - In/Out
20
2
DVI
EXT 1
AUDIO
21
DVI-I DVI Audio In EXT 2 EXT 1 UART I2C ComPair F_15270_001.eps 120505
E_06532_001.eps 050404
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)
Coax, 75 ohm
D
Mini Jack: PC-Audio - In 1 - Ground Gnd 2 - Audio L 0.5 VRMS / 10 kohm 3 - Audio R 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 DVI-I: Digital/Analogue Video - In
1 9 17 8 16 24 C1 C2 C5 C3 C4 E_06532_004.eps 050404
H j j
jk j H
k H j
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
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
Figure 1-3 DVI-I connector 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 C1 C2 C3 C4 C5 - D2- D2+ - Shield - D4- D4+ - DDC_SCL - DDC_SDA - V-sync - D1- D1+ - Shield - D3- D3+ - +5V - Ground - HPD - D0- D0+ - Shield - D5- D5+ - Shield - CLK+ - CLK- Video Red - Video Green - Video Blue - H-sync - Ground j j H j j k jk j j j H j j j H j j j H j j H j j j j j j H
20
2
Gnd
21
E_06532_001.eps 050404
1
DDC clock DDC data 0-5V
Figure 1-5 SCART connector 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
Gnd
Gnd Hot Plug Detect
Gnd
Gnd
0.7 VPP / 75 ohm 0.7 VPP / 75 ohm 0.7 VPP / 75 ohm 0-5V 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.
LC4.3E AB
Technical Specifications, Connections, and Chassis Overview
Chassis Overview
LCD PANEL CLASS D AUDIO AMPLIFIER PANEL
C
POWER SUPPLY PANEL
SMALL SIGNAL BOARD
B K E G J
IBO ZAPPER MODULE KEYBOARD CONTROL PANEL
SIDE I/O PANEL LED & IR PANEL
F_15270_085.eps 260705
Figure 1-6 Chassis overview
Safety Instructions, Warnings, and Notes
LC4.3E AB
2.
EN 5
2. Safety Instructions, Warnings, and Notes
Index of this chapter: 2.1 Safety Instructions 2.2 Warnings 2.3 Notes · 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. Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the "double-D symbol", are trademarks of Dolby Laboratories.
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.
·
· · · ·
2.3.3
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. 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.
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
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
EN 6
2.
LC4.3E AB
Safety Instructions, Warnings, and Notes
· 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.
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
MADE IN BELGIUM 220-240V ~ 50/60Hz 128W VHF+S+H+UHF
·
·
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 mix of two alloys). Caution: For BGA-ICs, you must use the correct temperatureprofile, which is coupled to the 12NC. For an overview of these profiles, visit the website www.atyourservice.ce.philips.com (needs subscription, but 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 Alternative BOM identification In September 2003, Philips CE introduced a change in the way the serial number (or production number, see Figure 2-1) is composed. From this date on, the third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative BOM (Bill of Materials used for producing the specific model of TV set). It is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different O.E.M.s. By looking at the third digit of the serial number, the service technician can see if there is more than one type of B.O.M. used in the production of the TV set he is working with. He can then consult the At Your Service Web site, where he can type in the Commercial Type Version Number of the TV set (e.g. 28PW9515/12), after which a screen will appear that gives information about the number of alternative B.O.M.s used. If the third digit of the serial number contains the number 1 (example: AG1B033500001), then there is only one B.O.M. version of the TV set on the market. If the third digit is a 2 (example: AG2B0335000001), then there are two different B.O.M.s. Information about this is important for ordering the correct spare parts! For the third digit, the numbers 1...9 and the characters A...Z can be used, so in total: 9 plus 26 = 35 different B.O.M.s can be indicated by the third digit of the serial number. 2.3.6 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.
PROD.NO: AG 1A0617 000001
S
Figure 2-1 Serial number example
BJ3.0E LA
E_06532_024.eps 130606
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 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.
·
Directions for Use
LC4.3E AB
3.
EN 7
3. Directions for Use
You can download this information from the following websites: http://www.philips.com/support http://www.p4c.philips.com
EN 8
4.
LC4.3E AB
Mechanical Instructions
4. Mechanical Instructions
Index of this chapter: 4.1 Cable Dressing 4.2 Service Positions 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. For other panels see LC4.3E AA Manual (3122 785 15272).
4.1
Cable Dressing
F_15270_086.eps 200505
Figure 4-1 Cable dressing
4.2
Service Positions
For easy servicing of this set, there are a few possibilities created: · The buffers from the packaging (see figure "Rear cover"). · Foam bars (created for service). · Aluminium service stands (created for Service).
The foam bars (order code 3122 785 90580 for two pieces) can be used for all types and sizes of Flat TVs. By laying the TV face down on the (ESD protective) foam bars, a stable situation is created to perform measurements and alignments. By placing a mirror under the TV, you can monitor the screen. 4.2.2 Aluminium Stands
4.2.1
Foam Bars
E_06532_018.eps 170504
E_06532_019.eps 170504
Figure 4-3 Aluminium stands (drawing of MkI) Figure 4-2 Foam bars
Mechanical Instructions
The aluminium stands (order code 3122 785 90480) can be mounted with the back cover removed or still left on. So, the stand can be used to store products or to do measurements. It is also very suitable to perform duration tests without taking much space, without having the risk of overheating, or the risk of products falling. The stands can be mounted and removed quick and easy with use of the delivered screws that can be tightened and loosened manually without the use of tools. See figure above. Note: Only use the delivered screws to mount the monitor to the stands.
LC4.3E AB
4.
EN 9
2. Remove the front panel by shifting it sideways to unlock it. 4.3.4 Unlocking the Metal Cover of the IBO Zapper Module
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.
F_15270_089.eps 300505
Figure 4-6 Unlocking the metal cover of the IBO zapper module
4.3.2
IBO Zapper Module
2 1 3
4
F_15270_090.eps 300505
Figure 4-7 Opening the IBO zapper module 1. Unlock the metal cover with a screwdriver (see Figure "Unlocking the metal cover of the IBO zapper module"). 2. Unhook the metal cover from its hinges (see Figure "Opening the IBO zapper module") and remove the cover (this is possible only if the front panel has been removed first).
F_15270_087.eps 310505
Figure 4-4 IBO zapper module 1. Disconnect the cable (1) from connector 1301 on the IBO zapper module. 2. Disconnect the flatcable (2) from connector 1500 on the IBO zapper module and remove the tape which secures it to the IBO zapper module. 3. Disconnect the antennacable (3) from the tuner on the IBO zapper module. 4. Remove the torx screws (4) and remove the IBO zapper module from the TV set. 4.3.3 IBO Zapper Module Front Panel
1
F_15270_088.eps 300505
Figure 4-5 IBO zapper module front panel 1. Remove the two screws (1).
EN 10
4.3.5
4.
LC4.3E AB
Mechanical Instructions
IBO Printed Circuit Board
1
F_15270_091.eps 300505
Figure 4-8 IBO printed circuit board 1. Remove the two screws (1) that secure the printed circuit board. 2. Lift the printed circuit board from its metal case.
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".
Service Modes, Error Codes, and Fault Finding
LC4.3E AB
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 "Service" jumpers on the TV board during cold start and apply mains (see Figure "Service jumpers"). Then press the mains button (remove the short after start-up). 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 service printing. In the schematics test points are identified with a rectangle box around Fxxx or Ixxx. 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.
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) & Digital Customer Service Mode (DCSM) are 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 readout for all chassis. Minimum requirements for ComPair: a Pentium processor, a Windows OS, and a CD-ROM drive (see also paragraph "ComPair").
1
F_15270_053.eps 180505
Figure 5-1 Service jumpers
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. 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).
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.
00035
LC4XEP1 1.08/S4XGVX 1.10
SDM
ERR 0 0 0 0 0 OP 000 057 140 032 120 128 000
F_15270_003.eps 120505
Figure 5-2 SDM menu
EN 12
5.
LC4.3E AB
Service Modes, Error Codes, and Fault Finding
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.Y. 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 set 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. 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. 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 highlighted. 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 or STATUS/EXIT button. · When you press the MENU key in while in a submenu, you will return to the previous menu.
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. 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. · AKB switching. · 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. 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.
00035 LC4XEP1 1.08/S4XGVX 1.10 ERR 0 0 0 0 0 OP 000 057 140 032 120 128 000 . Clear . Options . Tuner . White Tone . Audio . NVM Editor . SC NVM Editor . ComPair Mode Clear ?
SAM
On
F_15270_004.eps 250505
Figure 5-3 SAM menu
Service Modes, Error Codes, and Fault Finding
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:
LC4.3E AB
5.
EN 13
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, STATUS/EXIT, or POWER button on the remote control transmitter. · Press the POWER button on the television set. 5.2.4 Digital Customer Service Mode (DCSM) Purpose The Digital Customer Service Mode shows error codes and information on the IBO Zapper module operation settings. The call centre can instruct the customer to activate DCSM by telephone and read off the information displayed. This helps the call centre to diagnose problems and failures in the IBO Zapper module before making a service call. The DCSM is a read-only mode; therefore, modifications are not possible in this mode. How to activate To activate the DCSM, put the television in its digital mode (via the A/D button on the remote control). 1. Press the "Digital" Menu button on the remote control to activate the digital user menu ("Setup"). 2. Activate the "Information" sub menu ( via the "down" and "right" cursor buttons). 3. In the "Information" sub menu, press the following buttons on the remote control to activate the DCSM: "GREEN RED YELLOW 9 7 5 9". Then, the "Service menu" will appear (see figures below). Menu explanation
1 00035 LC4XEP1 1.08/S4XGVX 1.10 CSM 2 CODES 0 0 0 0 0 3 OP 000 057 140 032 120 128 000 4 5 6 NOT TUNED 7 PAL 8 STEREO 9 CO 50 CL 50 BR 50 0 AVL Off
E_15270_005.eps 120505
E_14970_040.eps 090904
Figure 5-5 DCSM menu - 1 Figure 5-4 CSM menu Menu Explanation 1. Indication of the decimal value of the operation hours counter, Software identification of the main microprocessor (see "Service Default or 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. Reserved item for P3C call centres (AKBS stands for Advanced Knowledge Base System). 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).
EN 14
5.
LC4.3E AB
Service Modes, Error Codes, and Fault Finding 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 AUTO PICTURE button on the remote control transmitter, or · The picture improves when you enter the Customer Service Mode,
E_14970_041.eps 100904
Figure 5-6 DCSM menu - 2
E_14970_042.eps 090904
Then: 1. Press the AUTO 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 highlight 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 BRIGHTNESS value. 7. Use the MENU UP/DOWN keys to select PICTURE. 8. Press the MENU LEFT/RIGHT keys to increase or decrease the PICTURE value. 9. Press the MENU button on the remote control transmitter twice to exit the user menu. 10. The new PERSONAL preference values are automatically stored. White Line around Picture Elements and Text If: The picture improves after you have pressed the AUTO PICTURE button on the remote control transmitter, Then: 1. Press the AUTO 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 highlight the PICTURE sub menu. 4. Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu. 5. Use the MENU UP/DOWN keys to select SHARPNESS. 6. Press the MENU LEFT key to decrease the SHARPNESS value. 7. Press the MENU button on the remote control transmitter twice to exit the user menu. 8. The new PERSONAL preference value is automatically stored. 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.
Figure 5-7 DCSM menu - 3 1. Hardware version: This indicates the version of the IBO Zapper module hardware. 2. Application SW: The application software version. 3. NOR Version: The NOR Flash image software version 4. Digital Frequency: The digital frequency that the set is tuned to. 5. Bit Error Rate: The error rate measured before the error correction algorithm circuitry. (this value gives an impression of the received signal) 6. Tuner AGC: Tuner AGC value. 7. COFDM Lock: Indication if COFDM decoder is locked. 8. AFD Status: Status of the Active Picture Format Descriptor. 9. Terrestrial Delivery System Parameters: Bandwidth: Bandwidth of the received signal. Constellation Pattern: Displays the signal constellation. Alpha Value: Displays the Alpha Value. FEC Scheme: Displays the Forward Error Correcting Scheme Guard Interval: Displays the value for the Guard Interval. Transmission Mode: Displays the Transmission Mode. 10. Audio Comp Type: Type of detected audio stream. 11. MHEG Present: Indicates if MHEG is present or not. 12. CIM Card Present: Indicates if CIM card is present or not. How to exit Press the BLUE button on the Remote Control to exit DCSM.
Service Modes, Error Codes, and Fault Finding
Black and White Picture If: · The picture improves after you have pressed the AUTO PICTURE button on the remote control transmitter, Then: 1. Press the AUTO 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 highlight the PICTURE sub menu. 4. Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu. 5. Use the MENU UP/DOWN keys to select COLOR. 6. Press the MENU RIGHT key to increase the COLOR value. 7. Press the MENU button on the remote control transmitter twice to exit the user menu. 8. The new PERSONAL preference value is automatically stored. Menu Text not Sharp Enough If: · The picture improves after you have pressed the AUTO PICTURE button on the remote control transmitter, Then: 1. Press the AUTO 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 highlight the PICTURE sub menu. 4. Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu. 5. Use the MENU UP/DOWN keys to select PICTURE. 6. Press the MENU LEFT key to decrease the PICTURE value. 7. Press the MENU button on the remote control transmitter twice to exit the user menu. 8. The new PERSONAL preference value is automatically stored.
LC4.3E AB
5.
EN 15
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 faultfinding 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 microcontroller 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 microcontroller of the television is working correctly and only to a certain extent. When this is not the case, ComPair will guide you through the faultfinding 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 faultfinding 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. How To Connect This is described in the chassis faultfinding database in ComPair. Caution: It is compulsory to connect the TV to the PC as shown in the picture below (with the ComPair interface in between), as the ComPair interface acts as a level shifter. If one connects the TV directly to the PC (via UART), ICs will be blown!
TO UART SERVICE CONNECTOR TO I2C SERVICE CONNECTOR
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.
PC
VCR
Power 9V DC
I2C
E_06532_021.eps 180804
Figure 5-8 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.
EN 16
· · · · ·
5.
LC4.3E AB
Service Modes, Error Codes, and Fault Finding 5.5 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/STATUS button (do not allow the display to time out between entries while keying the sequence). Make sure the menu item CLEAR is highlighted. 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.
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 (Byteblaster). 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 (>= 1280x768). 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 delivered with the tool. 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. · Service Manual LVDS tool: 3122 785 00810. · LVDS cable 20p (for Telra 14-inch): 3122 785 90810. · LVDS cable 30p (for LC4.3): 3122 785 90820. · LVDS cable 41p-to-31p for CA1 (dual -> single LVDS): 3122 785 90830.
Service Modes, Error Codes, and Fault Finding
5.5.3 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). Table 5-1 Error code overview
Error 0 1 Device Not applicable Not applicable Error Description No Error Mis-match of TV Hercules SW and Scaler SW Check Item Diagram
LC4.3E AB
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EN 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. 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.
2 3 4
Not applicable Not applicable Genesis Scaler Flash-ROM
-
B7 + B8
I2C error while 7801 communicating with the Genesis Scaler and/or Flash-ROM 7B01 is faulty/empty +5V protection General I2C error I2C error 7752
B10 B6
5 6 7 8
Scaler supply 7752 Not applicable ADC Scaler EEPROM
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.
1102, 7L04, 7M00 B1 + B18 + B19 7L04 B18 B11
I2C error while 7C01 communicating with the Scaler EEPROM 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.
9
Hercules EEPROM
B2
5.7.1
IBO Zapper In case of performance problems with the IBO Zapper module, always check for the availability of new software first. Updates of the IBO Zapper software will be distributed via Symptom Cures.
10
Tuner
I2C error while 1102, F102, F104, B1 communicating with F107 the PLL tuner I2C error while 7M00 communicating with the 2D/3D combfilter Columbus 7D03 I2C error while communicating with the iBoard HDMI Panellink Receiver/ Decoder (only in NAFTA and AP sets) Read-write error with the Scaler SDRAM 7B01 B19
5.7.2
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 functionality of the TV set! · Always note down the existing NVM settings, before changing the settings. This will enable you to return to the orgininal settings, if the new settings turn out to be incorrect. Table 5-2 NVM editor overview Hex .ADR .VAL 0x000A 0x0000 Dec 10 0 Store? Description Existing value New value
11
Columbus
12 13
Not applicable HDMI Panellink Receiver/ Decoder
B12 (only in NAFTA and AP sets)
14
Scaler SDRAM
B10
15 16
Not applicable EPLD
-
B20 + B21 K
I2C error while 7N02 communicating with EPLD I2C error while Digital Module communicating with (only on Digital the Digital Module sets) (only on Digital sets) -
17
Digital Module (only on Digital sets)
18
Not applicable
-
.Store
EN 18
5.
LC4.3E AB
Service Modes, Error Codes, and Fault Finding
Table 5-3 NVM Default values (option bit settings through NVM Editor in SAM Mode) 32PF7520D/10 32PF5520D/10 1 1 0 1 1 1 0 0 59 3B 0 0 0 0 0 0 0 0 0 00 0 1 0 1 0 0 0 1 8A 0 0 0 0 0 1 0 0 32 20 0 0 0 1 1 1 1 0 78 26PF5520D/10 1 1 0 1 1 1 0 0 59 3B 0 0 0 0 0 0 0 0 0 00 0 1 0 1 0 0 0 1 8A 0 0 0 0 0 1 0 0 32 20 0 0 0 1 1 1 1 0 78
Byte Nr. Bit
Feature/Mode
Description
Byte 0 174(dec)
0 QSS (LSB) 1 FMI 2 HCO 3 HP2 4 FSL 5 TFR 6 OSVE 7 MVK (MSB) Total Dec Values Total Hex Values
Mode of quasi split sound amplifier Connection of output of QSS amplifier EHT tracking mode Synchronization of OSD/Text display Forced slicing level for vertical sync DC transfer ratio of luminance signal Black current measuring in overscan (For Future Usage, as defined by software)
1 1 0 1 1 1 0 0 59 3B
Byte 1 175(dec)
0 PSE 1 OPC 2 PRIS 4 WHITE PATTERN ON 5 SDM MODE 6 SAM MODE 7 SVMA Total Dec Values Total Hex Values
PSE OPC PRIS Last color pattern status in factory mode Service default mode on/off Service Align mode on/off Scavm On / Off
0 0 0 0 0 0 0 0 0 00
3 CONTINUOUS FACTORY Continuous factory mode
Byte 2 176(dec)
0 MUTE STATUS 1 TUNER AUTO MODE 2 CABLE MODE 3 LAST POWER MODE 4 CHILD LOCK MODE 5 SURF MODE 6 FACTORY MODE 7 PSNS Total Dec Values Total Hex Values
Mute status Auto mode Cable/Antenna mode Last power status of the set Child lock enabled Surf mode on/off Factory mode on For PAL color enhancement in ES4
0 1 0 1 0 0 0 1 8A
138 138 138
Byte 3 177(dec)
0 RADIO/TV MODE 1 WAKE-UP MODE 2 HOTEL MODE 3 HOTEL KBD LOCK 4 HBL 5 BLS 6 SL 7 CFA0 Total Dec Values Total Hex Values
Radio mode or TV mode WAKE-UP MODE TV in Hotel mode Keyboard locked HBL Blue stretch mode SL Comb filter On/Off
0 0 0 0 0 1 0 0 32 20
Byte 4 178(dec)
0 Signal Strength 1 LPG 2 DVD TRAY LOCK 3 SCRSAVER MODE 4 BKS 5 BSD 6 CRA0 7 PIP QSS Total Dec Values Total Hex Values
Signal Strength Switch in MK2 LPG Lock/Unlock DVD tray Screen saver mode Black Stretch Mode Black Stretch Depth Coring on SVM PIP QSS
0 0 0 1 1 1 1 0 78
120 120 120
Service Modes, Error Codes, and Fault Finding
32PF7520D/10
LC4.3E AB
32PF5520D/10 26PF5520D/10
5.
EN 19
Byte Nr. Bit
Feature/Mode
Description
Byte 5 179(dec)
0 FFI 1 NNR 2 MUS 3 GAM 4 CBS 5 LLB 6 DSA 7 DSK Total Dec Values Total Hex Values
Fast Filter No red reduction during blue stretch NTSC matrix Gamma control Control sequence of beam current limiting Low level of beam current limiter Dynamic skin tone angle area Dynamic skin tone angle on/ off
0 1 1 1 0 0 1 0 78 4E
0 1 1 1 0 0 1 0 78 4E 0 0 0 0 0 0 0 0 0 00 0 1 0 0 0 0 0 0 2 02
0 1 1 1 0 0 1 0 78 4E 0 0 0 0 0 0 0 0 0 00 0 1 0 0 0 0 0 0 2 02
Byte 6 180(dec)
0 LTI status 1 Inc_Life_Time 2 PC_Mode 3 HD_Mode 4 Tact_Switch 5 Set_In_Special_Stby 6 Hotel_OSDDisplay 7 Hotel_MonitorOut Total Dec Values Total Hex Values
LTI last status Inc_Life_Time PC_Mode HD_Mode Tact_Switch Set_In_Special_Stby Hotel_OSDDisplay Hotel_MonitorOut
0 0 0 0 0 0 0 0 0 00
Byte 7 181(dec)
0 Hotel_IconMode 1 DBE 2 SD 3 Set_in_PC_Sleep_Mode 4 Reserved 5 Reserved 6 Reserved 7 Reserved Total Dec Values Total Hex Values
Hotel_IconMode DBE SD Set_in_PC_Sleep_Mode Reserved Reserved Reserved Reserved
0 1 0 0 0 0 0 0 2 02
5.7.3
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 the SDM jumpers (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.
EN 20
5.
LC4.3E AB
Service Modes, Error Codes, and Fault Finding
Personal Notes:
E_06532_012.eps 131004
Block Diagrams, Testpoint Overviews, and Waveforms
LC4.3E AB
6.
21
6. Block Diagrams, Testpoint Overviews, and Waveforms
Wiring Diagram
8903
8903 8301
INVERTER INVERTER
3P X220 32P 3P 1301
LVDS CONNECTION TO SCREEN
INVERTER
1500
Right Speaker
POWER SUPPLY
30P
Left Speaker
C
8P06 X200
CLASS D AUDIO AMPLIFIER
3P 1003
4P 1001 8J03 1002 9P
8J04
K
IBO ZAPPER
12P
8J02
X530
30P 31P
1P06
12P
1J02
3P 1J03
9P 1JO4(1M52)
1K00(1M21) 6P 8500 8870
12P
12P
8520 X520
1K01(1M06) 12P
D
SIDE AV
14P
8520
HP 1304 (1M06) 1302 L R Y 1301 SVHS
8684
X002
POWER IN
2P3
32P 1J03
DVI SCART2 SCART1 8600
8002
6P
1870
AC POWER INLET
J
IR/LED/LIGHT SENSOR
F_15270_064.eps 140806
E
KEYBOARD CONTROL
14P
8K01
1303
1K02 3P
12P
3P 1684
B
SSB
Block Diagrams, Testpoint Overviews, and Waveforms
LC4.3E AB
6.
22
Block Diagram Video
VIDEO B1 TUNER & VIF
+VTUN +5SW_a 1104 11 IF-TER 2106 2 8 TUNER F108 4
TO TUNER
B2 HERCULES
7217 TDA15021H 7 VIF1 VIF2 24 25 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
F624 R_SDTV F625 G_SDTV F626 B_SDTV SC1_R_CVI_Pr_IN B13 SC1_G_CVI_Y_IN B13 SC1_B_CVI_Pb_IN B13 YUV 5 7E02 BINA|Pb B14 GINA|YINA B14 22 1 2 Vsync_SDTV B13 B14 7E03 7206 EF YUV in/out 64 Chrome PAL/NTSC/ SECAM Decoder & Baseband Delay Uint H/V Sync Sep H-OSC H-Shift H-Drive CVBS/Y 7436-1 HOUT 67 3 4 Hsync_SDTV B14 B13 B14 B3 Hsync_SDTV 13 10,11 SD_HD_SEL H_PC 12 14 1 4 AHSYNC V_PC 2 15 5 8 AVSYNC B3 Vsync_SDTV 1 RINA|Pr 1 2 19 PC_HD_DET 7E04 11 15 12 14 1 7 14 G_Y-ADC G_Y+ B_PB+ 3 17 R_PR-ADC R_PR+ 27 7E01 SOG
B7 SCALER
7801 GM1501
B11 FLASH/CONTROL
7C00 MX29LV040QC OCMDATA EXTERNAL ROM INTERFACE FLASH ROM 512Kx8 LVDS_VCC LVDSALVDSA+ LVDSBLVDSB+ 1P07 1 11 12 13 14 15 16 17 18 19 20 24 25 26 21 22 TO DISPLAY (LC4.8 LC4.9) TO DISPLAY (LC4.3)
1102 RF UV1318SD 6 IN RF OUT
7
C3
D2 C2 B2
5
1
3311
RF_AGC
31 DC
AC
AGC Detect
Video Switch + Control
OCMADDR
HERCULES
c SAT Skin Tone U/V Tint Saturation
25 11 B_PB-ADC
SCL
SDA
K6
See also Block giagram IBO-ZAPPER
1106 2
7
SIF1
29 30
8 SIF2
QSS/FM QSS Mixer AM Demod. AM
B3 SYNC INTERFACE
7436-2
ANALOG INPUT PORT
LVDSCLVDSC+ LVDSDLVDSD+
B15 SCART ANALOG IO
1G02 7G10
SC2_Y_IN FRONT_Y_CVBS_IN
1
20
2 14 1 12 15 13 3 4 51 52
SC2_AV3_C_IN
59
cvbs/y
Dig. 2H/4H Combfilter Y Delay Adj.
Yint
SCAVEM on text
Peaking SCAVEM U/V Delay
Vertical & East-West Geometry
VDRB
SCALER
LVDSCLKLVDSCLK+
15
SC2_C_IN FRONT_C_IN
L3 L4 GRAPHIC ZOOM
OR
8 STATUS_2
7G05 EF
B2
DMMI_CVBS_IN SC2_CVBS_MON_OUT AV2_DMMI_SW
Vint
5 9 7219 14 B2 SC2_OUT_SW 13 12 48
19
LVDS_VCC BRIGHTNESS/CONTRAST/HUE/SAT AE16 AF16 AE15 AF15 DISPLAY TIMING GEN. AE14 AF14 AF12 AF11 AF13 AE12 COL_Do(1-7) VIDEO ZOOM COL_YB(1-7) OR Only for sets with PIXEL PLUS 7N04 THC63LVDF84B TXB0+ TXB0TXB1+ TXB1TXB2+ TXB2TXB3+ TXB3TXBC+ TXBCRGB LVDS INTERFACE RECEIVER LVDS TRANSMITTER 7P02 THC63LVDM83R LVDSAn LVDSAp LVDSBn LVDSBp LVDSCn LVDSCp LVDSDn LVDSDp LVDSCLKn LVDSCLKp TXB0TXB0+ TXB1TXB1+ TXB2TXB2+ TXB3TXB3+ TXBCTXBC+ 4N03 4N01 4N07 4N05 4N11 4N09 4N15 4N13 4N19 4N17 LVDSAn LVDSAp LVDSBn LVDSBp LVDSCn LVDSCp LVDSDn LVDSDp LVDSCLKn LVDSCLKp LVDSALVDSA+ LVDSBLVDSB+ LVDSCLVDSC+ LVDSDLVDSD+ LVDSCLKLVDSCLK+
1P06 1 11 10 12 14 13 15 19 18 20 27 26 28 22 21 23
21 SCART 2
B2
RGB/Pr Pb Insert YUV Interface INSSW3
B10 SDRAM
7B01 K4D263238F
+2V5_DDR 95 OSD CONTROLLER FSDATA OUT BLENDER FRAME STORE CONTROL
58 55 43
B/Pb-3
R/Pr-3
UOUT
UIN
VIN
1G01 20
SC1_CVBS_IN
7G03 EF
SC2_Y_IN_1
YIN
SC2_AV3_Y_IN
VOUT
YOUT
G/Y3
SDRAM 1Mx32x4 FSADDR 72
77
SC1_CVBS_IN
78
79
80
74
75
76
70
71
1
19
B18 HISTOSC1_CVBS_RF_OUT
N.C. 7G09 2 4 9 7 12 14 19 17
GRAM
30 31 7L01 EF 7L03 EF 7L02 EF
7L04 MST9883C
B19 COLUMBUS
(Dig. PAL/NTC Comb) 7M00 T6TU5XBG
16 15 11 7
SC1_FBL_IN CVI_Pr_IN CVI_Y_IN CVI_Pb_IN
SC1_FBL_IN DMMI_FBL_IN CVI_Pr_IN DMMI_R_Pr_IN CVI_Y_IN DMMI_G_Y_IN CVI_Pb_IN DMMI_B_Pb_IN
3 8 13 18
SC1_FBL_IN_1 SC1_G_CVI_Y_IN
B2
SC1_FBL_IN_1 SC1_CV1_DMMI_R_Pr_IN
SC1_B_CVI_Pb_IN
SC1_R_CVI_Pr_IN
INTF_V_OUT INTF_U_OUT INTF_Y_OUT
54 43 48 SCL SDA 56 57 A/D CONV.
COL_Di(1-7) COLUMBUS DIGITAL COMB FILTER COL_YA(1-7)
B13
SC1_CV1_DMMI_G_Y_IN
B13
SC1_CV1_DMMI_B_Pb_IN
21 SCART 1
8 STATUS_1 B2 B2 1G03 8 DMMI_CVBS_IN
FROM 1500 OF
B13
DMMI_RGB_SM
9,10,11,20
7M01 MSM56V16 B15 B13 B13 B13
3G66
SC2_AV3_Y_IN
5 3
7G07 4 10,11
7G08 EF
DRAM 512Kx16x2
14 12 10
DMMI_R_Pr_IN DMMI_G_Y_IN DMMI_B_Pb_IN
K5
See also Block giagram IBO-ZAPPER
B2
AV2_DMMI_SW
SC2_Y_IN_1
7E00
B14 DIGITAL IO
1F00
B15 B15 B15
SC1_CV1_DMMI_R_Pr_IN SC1_CV1_DMMI_G_Y_IN SC1_CV1_DMMI_B_Pb_IN
13 1 3 5 2 12 14 SC1_R_CVI_Pr_IN 15 SC1_G_CVI_Y_IN 4 SC1_B_CVI_Pb_IN B2,B13 B2,B13 B2,B13 UART INTERFACE
COL_A
COL_D
For DVB Sets Only
27 26 25
B13 B13 B13 H_PC V_PC B13 B13
BINA|Pb GINA|YINA RINA|Pr
7N02 EP1C12F256C8N
C5
D
SIDE AV
B17 SIDE CONNECTIONS
C1 C2
28
C3 C4
EPLD PIXEL+ PROCESSOR
8 1 2 6 7 9 10 11 14 15 17 18 23 24 16
1302 1304 Y/CVBS 2 4 1301
1
RX2-IN RX2+IN SCL_DVI SDA_DVI RX1-IN RX1+IN
B10 A10 N4 N3 B9 A9
DVI/HDMI INPUT PORT
1K01 2 4
8 16 24
MICRO CONTROLLER
INTERNAL RAM SD_HD_SEL TV H H L EXT1 EXT2 Side-AV H H H H H H L H L PC H L L HD H H L
1 9 17
3
+5VSWI RX0-IN RX0+IN RXC+IN RXC-IN HOTPLUG B8 A8 AL B6 AE10
5 2 4
C DVI-D CONNECTOR
PC_HD_DET RGB|CVI_HDA_SEL
SVHS
RGB
F_15270_065.eps 031105
Block Diagrams, Testpoint Overviews, and Waveforms
LC4.3E AB
6.
23
Block Diagram Audio
AUDIO B1 TUNER & IF
1102 UV1318S(D) RF IN TUNER RF OUT Only on DVB Sets IFOUT 11 F108 IF-TER 2106 6104
B2 HERCULES
7217 TDA15021H 4110 2 3 1106 7 8 SIF1 SIF2 29 30 AM QSS Mixer AM Demod. QSS/FM
B5 AUDIO PROCESSING
B16
C AUDIO AMPLIFIER
(CLASS-D)
7
7001 TDA8931T
1J04
61 60 4211 4212 AUDOUTLSR AUDOUTLSL 3 1
1002
3 1 AUDIO-R AUDIO-L
7004 PHASE INVERTER
POWER COMPARATOR 16 OUT
IN+ HVPI 13
1001 4 3 RIGHT SPEAKER 2 1 LEFT SPEAKER
4
4
5 7101
33
AD Conv. Std Stereo Decoder
7000 TDA8931T AUDIO CONTROL Vol/Treb/ Bass Features DACs SOUND-ENABLE 8 8 SOUND-ENABLE
SCL
SDA
B2
SEL_IF_SDM
POWER 7 COMPARATOR 16 OUT
4 IN+ HVPI 13
B17 SIDE B15 SCART ANALOG IO
1 1G01 6 2 2 SC1_COMP_AV1_L_IN SC1_COMP_AV1_R_IN 4G11 21
EXT 1
D SIDE AV
1K01 10
12 11
7601 TS482ID 1 7 SC1_COMP_AV1_L_IN SC1_COMP_AV1_R_IN 34 6 35
CONNECTORS
HP_LOUT HP_ROUT
1304 (1M06)
10 12 11 HEAD_PH_L HEAD_PH_R HP_DET_R_DC1
1303 7
1 2
7606
4G12 7G07* 74HC4053D SC2_L_IN SC2_R_IN 13 3 2 1 14 21
EXT 2
HP_DET_R_DC_1 MUTE
HEADPHONE
I2S Processor
OUT_MUTE 7602 74HC08PW & & & 2 1 5 9 10 HP_DET_R_DC_1 SOUND_ENABLE B2 POWER_DOWN B16 EXT_MUTE B2
SCART 1 1 1G02 6
SC2_L_IN SC2_R_IN
56 57
6 OUT_MUTE 8
SCART 2 Only for DVB sets
1G03 6 4
15 DMMI_L_IN DMMI_R_IN 12 2 *Only for 10,11 DVB Set AV2_DMMI_SW
AUDIO SELECT ADC/DAC
B15 SCART ANALOGUE IO
DMM1 CONNECTOR
B2 62 63 SC2_L_MON_OUT SC2_R_MON_OUT SC2_L_MON_OUT SC2_R_MON_OUT
1G02-1 3 1
1
D SIDE AV
1302 L_FRONT_IN
AUDIO L/R IN
B17 SIDE CONNECTORS
1304 (1M06) 6 8 1K01 (1M06) 6 8 FRONT_L_IN FRONT_R_IN 49 50
7202
OUT_MUTE MUTE
SC2_L SC2_R 1G01-1
21
EXT 2
SCART 2 1
R_FRONT_IN
B14 DIGITAL IO
1F01 PC AUDIO IN
2 4 3 7 AudioIN2L AudioIN2R 53 54
36 37
SC1_L_RF_OUT SC1_R_RF_OUT
SC1_L_RF_OUT SC1_R_RF_OUT
3 1 21
EXT 1
7201
MUTE
SC1_L SC1_R
SCART 1
CONTROL E KEYBOARD CONTROL
Channel+ ChannelMenu Volume+ VolumePower 1309 1310 3324 1311 1312 1313
B17 SIDE CONNECTORS
B2 HERCULES
7217 TDA15021H
B6 DC-DC CONVERTER
KEYBOARD
1684 2
1K02 (1M06) 2
114 KEYBOARD 120
SEL_IF_SDM
4022
B1 5756 3758 3755 +12VSW 7754 5757
HERCULES
SERVICE SMD
LVDS_VCC PAN_VCC
J IR/LED/LIGHT-SENSOR
+3V3STBY 7802 VS 2 GND OUT 3
116 119 1870 1K00
3
STATUS_1 STATUS_2 EXT_MUTE SOUND-ENABLE SC_STANDBY AV2_DMMI_SW
B3 B3 B5 B5 B6 B15 B15 B2 B8
7755
PANEL-PWR-CTL
1 7808
IR
3
IR
97
102 111
3759 7756
+3V3STBY 7804 6801-2 Green 7801 6801-1 Red 3801
LIGHT-SENSOR-SDM
1
1
LIGHT_SENSOR
115
122 127
SC_STANDBY
2
2
B3
+3V3STBY
SYNC INTERFACE
3431 +3v3STBY 7430 6F00 +5VSW
7803
3802
+3V3STBY
5
5
LED_SEL
4
4
LED_SEL
3432 RES
ITV_IR_SW_RESET
123
10
PC-TV-LED
6
6
PC-TV-LED
107
11
1202 F_15270_040.eps 310505
3750
+3V3STBY
7758
+3V3SW
Block Diagrams, Testpoint Overviews, and Waveforms
LC4.3E AB
6.
24
Testpoint Overview Small Signal Board 6093.1
F101 F102 F103 F104 F105 F106 F107 F108 F109 F110 F111 F112 F113 F114 F115 F116 C1 D2 C1 D2 D1 D2 C1 C2 C2 B2 B2 B2 B2 C2 D2 D2 F117 F201 F202 F203 F204 F205