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Color Television
Chassis
LC8.1L
LA
MG8
ME8
H_17740_000.eps 240408
Contents
Page
Contents
Page
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 16 6. Block Diagrams, Test Point Overview, and Waveforms Wiring Diagram 32" LCD 27 Wiring Diagram 42" LCD 28 Block Diagram Video 29 Block Diagram Audio 30 Block Diagram Control & Clock Signals 31 SSB: Test Points (Overview Bottom Side) 32-36 I2C IC Overview 37 Supply Lines Overview 38 7. Circuit Diagrams and PWB Layouts Diagram Main Power Supply (32"): Part 1 (A1) 39 Main Power Supply (32"): Part 2 (A2) 40 SSB: DC/DC (B01) 43 SSB: Tuner IF & Demodulator (B02) 44 SSB: Micro Processor (B03) 45 SSB: Trident CX32 (B04A) 46 SSB: LVDS Connectors (B04B) 47 SSB: Audio Processor Micronas (B05A) 48 SSB: Audio Class-D (B05B) 49 SSB: YPbPr & SVHS (B06A) 50 SSB: I/O Cinch 1 & 2 (B06B) 51 SSB: VGA & Audio, ComPair, & UART (B06C) 52 SSB: HDMI Main (B06D) 53 SSB: SRP List Explanation 54 SSB: SRP List 55 Keyboard Control Panel (E) 66 IR & LED Panel (J) 67
8. Alignments 69 9. Circuit Descriptions, Abbreviation List, and IC Data Sheets 72 Abbreviation List 77 IC Data Sheets 79 10. Spare Parts List & CTN Overview 84 11. Revision List 84
PWB 41-42 41-42 56-65 56-65 56-65 56-65 56-65 56-65 56-65 56-65 56-65 56-65 56-65
66 68
© Copyright 2008 Koninklijke Philips Electronics N.V. 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 TY 0867 BU TV Consumer Care
Printed in the Netherlands
Subject to modification
EN 3122 785 17911
EN 2
1.
LC8.1L LA
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). 1.1.3 Miscellaneous Power supply: - Mains voltage (VAC) - Mains frequency (Hz) Ambient conditions: - Temperature range (°C) - Maximum humidity
: 100 - 240 : 50 / 60
: +5 to +40 : 90% R.H.
1.1
1.1.1
Technical Specifications
Vision Display type Screen size Resolution (HxV pixels) Dyn. contrast ratio Min. light output (cd/m2) Typ. response time (ms) Viewing angle (HxV degrees) Tuning system Presets/channels Tuner bands TV Color systems Video playback : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : LCD 32" (82 cm), 16:9 42" (107 cm), 16:9 1366 × 768 26000:1 500 8 178 × 178 PLL 125 presets VHF, UHF, S, H PAL N, M NTSC M NTSC PAL SECAM 640 × 480 720 × 400 800 × 600 1024 × 768 1280 × 768 1280 × 1024 1360 × 768 480i @ 60 Hz 480p @ 60 Hz 576i @ 50 Hz 576p @ 50 Hz 720p @50, 60 Hz 1080i @ 50, 60 Hz 1080p @ 24, 25, 30, 50, 60 Hz
Power consumption (values are indicative) - Normal operation (W) : 130 (32") : 200 (42") - Stand-by (W) : < 0.165 Dimensions (W × H × D mm) : 809 × 544 × 92 (32PFL3xxx) : 819 × 518 × 92 (32PFL5xxx) : 1033 × 666 × 88 (42PFL3xxx) : 1046 × 645 × 88 (42PFL5xxx) : 14.5 (32") : 20.5 (42")
Weight (kg)
Supported computer formats
Supported video formats
1.1.2
Sound Sound systems : : : : : BTSC Stereo FM Mono BBE® SAP 2 × 15
Maximum power (WRMS)
Technical Specifications, Connections, and Chassis Overview 1.2 Connection Overview
16 17 18 19 20
7 8
PBS SX SERV. C R Y L Y SPDIF OUT AUDIO IN VGA
LC8.1L LA
DDC data Gnd Hot Plug Detect Gnd
1.
EN 3
jk H j j H
HDMI 1
HDMI 2
HDMI 3
- DDC_SDA - Ground - +5V - HPD - Ground
8 - Cinch: S/PDIF - Out Bk - Coaxial 0.4 - 0.6VPP / 75 ohm
9 1
kq
4 5
75X
TV ANTENNA
9 - PC: VGA: Video RGB - In, Cinch: Audio - In
1 5 10 15 E_06532_002.eps 050404 6 11
Pb
Pb VIDEO
Pr
Pr
L
L
L
2
AV1 IN
R
R
R
CVI-1
CVI-2
Figure 1-2 VGA Connector
3
6
10
10
11
I_17910_005.eps 070408
Figure 1-1 Side and rear I/O connections Note: The following connector color abbreviations are used (acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy= Grey, Rd= Red, Wh= White, and Ye= Yellow. 1.2.1 Side Connections 1 - Head phone - Out Bk - Head phone 32 - 600 ohm / 10 mW 2 - 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 3 - 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 VPPP / 75 ohm 1.2.2 Rear Connections 4 - Service Connector (Serial Express) Only for iTV applications. 5 - Service Connector (ComPair) 1 - SDA-S I2C Data (0 - 5 V) 2 - SCL-S I2C Clock (0 - 5 V) 3 - Ground Gnd 6 - Aerial - In - - F-type (US)
rt
jq jq jq
1 - Video Red 2 - Video Green 3 - Video Blue 4 - n.c. 5 - Ground 6 - Ground Red 7 - Ground Green 8 - Ground Blue 9 - +5VDC 10 - Ground Sync 11 - n.c. 12 - DDC_SDA 13 - H-sync 14 - V-sync 15 - DDC_SCL Wh - Audio L Rd - Audio R
0.7 VPP / 75 ohm 0.7 VPP / 75 ohm 0.7 VPP / 75 ohm Gnd Gnd Gnd Gnd +5 V Gnd DDC data 0-5V 0-5V DDC clock 0.5 VRMS / 10 kohm 0.5 VRMS / 10 kohm
j j j H H H H j H j j j j jq jq
H H j j
10 - CVI1 and 2: Cinch: Video YPbPr - In, Audio - In Gn - Video Y 1 VPP / 75 ohm Bu - Video Pb 0.7 VPP / 75 ohm Rd - Video Pr 0.7 VPP / 75 ohm Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm 11 - AV In: 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
jq jq jq jq jq
jq jq jq
jk j H
Coax, 75 ohm
D
7 - HDMI1 and 2: Digital Video, Digital Audio - In 1 - D2+ Data channel 2 - Shield Gnd 3 - D2Data channel 4 - D1+ Data channel 5 - Shield Gnd 6 - D1Data channel 7 - D0+ Data channel 8 - Shield Gnd 9 - D0Data channel 10 - CLK+ Data channel 11 - Shield Gnd 12 - CLKData channel 13 - n.c. 14 - n.c. 15 - DDC_SCL DDC clock
j H j j H j j H j j H j j
EN 4 1.3
1.
LC8.1L LA
Technical Specifications, Connections, and Chassis Overview
Chassis Overview
A E
MAIN POWER SUPPLY PANEL KEYBOARD CONTROL PANEL SMALL SIGNAL BOARD
B
J
IR & LED PANEL
I_17911_011.eps 300608
Figure 1-3 PWB/CBA locations xxPFL3xxx (MG8 styling)
A E
MAIN POWER SUPPLY PANEL KEYBOARD CONTROL PANEL SMALL SIGNAL BOARD
B
J
IR & LED PANEL
I_17910_006.eps 070408
Figure 1-4 PWB/CBA locations xxPFL5xxx (ME8 styling)
Safety Instructions, Warnings, and Notes
LC8.1L LA
2.
EN 5
2. Safety Instructions, Warnings, and Notes
Index of this chapter: 2.1 Safety Instructions 2.2 Warnings 2.3 Notes · 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. 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 M and 12 M. 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 k). Resistor values with no multiplier may be indicated with either an "E" or an "R" (e.g. 220E or 220R indicates 220 ). All capacitor values are given in micro-farads ( = × 10-6), nano-farads (n = × 10-9), or pico-farads (p = × 10-12). 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
BGA (Ball Grid Array) ICs Introduction 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. BGA Temperature Profiles 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, 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.
2.2
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. 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.
2.3.4
Lead-free Soldering 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 stabilize 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 stabilized 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
· · ·
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).
EN 6
3.
LC8.1L LA
Directions for Use
example below it is 2006 week 17). The 6 last digits contain the serial number.
MODEL : 32PF9968/10
MADE IN BELGIUM 220-240V ~ 50/60Hz 128W VHF+S+H+UHF
avoid mixed regimes. If this cannot be avoided, carefully clear the solder-joint from old tin and re-solder with new tin. 2.3.5 Alternative BOM identification It should be noted that on the European Service website, "Alternative BOM" is referred to as "Design variant". The third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific TV set. In general, 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 suppliers. This will then result in sets which have the same CTN (Commercial Type Number; e.g. 28PW9515/12) but which have a different B.O.M. number. By looking at the third digit of the serial number, one can identify which B.O.M. is used for the TV set he is working with. If the third digit of the serial number contains the number "1" (example: AG1B033500001), then the TV set has been manufactured according to B.O.M. number 1. If the third digit is a "2" (example: AG2B0335000001), then the set has been produced according to B.O.M. no. 2. 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. Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production center (e.g. AG is Bruges), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the production year, and digits 7 and 8 refer to production week (in
PROD.NO: AG 1A0617 000001
S
Figure 2-1 Serial number (example) 2.3.6
BJ3.0E LA
E_06532_024.eps 260308
Board Level Repair (BLR) or Component Level Repair (CLR) If a board is defective, consult your repair procedure to decide if the board has to be exchanged or if it should be repaired on component level. If your repair procedure says the board should be exchanged completely, do not solder on the defective board. Otherwise, it cannot be returned to the O.E.M. supplier for back charging!
2.3.7
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.
·
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
LC8.1L LA
4.
EN 7
4. Mechanical Instructions
Index of this chapter: 4.1 Cable Dressing 4.2 Service Positions 4.3 Assy/Panel Removal ME8 Styling 4.4 Assy/Panel Removal MG8 Styling 4.5 Set Re-assembly Notes: · Figures below can deviate slightly from the actual situation, due to the different set executions.
4.1
Cable Dressing
I_17911_012.eps 300608
Figure 4-1 Cable dressing 32PFL3xxx (MG8 styling)
EN 8
4.
LC8.1L LA
Mechanical Instructions
I_17910_007.eps 070408
Figure 4-2 Cable dressing 32PFL5xxx (ME8 styling)
I_17911_016.eps 300608
Figure 4-3 Cable dressing 42PFL3xxx (MG8 styling)
Mechanical Instructions
LC8.1L LA
4.
EN 9
I_17911_018.eps 300608
Figure 4-4 Cable dressing 42PFL5xxx (ME8 styling)
EN 10 4.2
4.
LC8.1L LA
Mechanical Instructions
The foam bars (order code 3122 785 90580 for two pieces) can be used for all types and sizes of Flat TVs. See figure "Foam bars" for details. Sets with a display of 42" and larger, require four foam bars [1]. Ensure that the foam bars are always supporting the cabinet and never only the display. Caution: Failure to follow these guidelines can seriously damage the display! 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.
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).
4.2.1
Foam Bars
1
4.3
4.3.1
Assy/Panel Removal ME8 Styling
Rear Cover Warning: Disconnect the mains power cord before you remove the rear cover. Note: it is not necessary to remove the stand while removing the rear cover.
1
Required for sets 42"
Refer to next figures for details. 1. Remove the screws [1]. 2. Lift the back cover from the TV. Make sure that wires and flat coils are not damaged while lifting the rear cover from the set.
E_06532_018.eps 171106
Figure 4-5 Foam bars
1 1
1
1 1
1
1
1
1
1
1
1
I_17820_024.eps 130308
Figure 4-6 Back Cover Removal
Mechanical Instructions
4.3.2 Speakers Refer to next figure for details. 1. Remove the screws [1] and lift the whole unit from the back cover. Take the speakers out together with their casing. When defective, replace the whole unit. 4.3.4
LC8.1L LA
4.
EN 11
Keyboard Control Panel Refer to next figure for details. 1. Unplug the key board connector from the IR & LED board. 2. Remove the screws [1]. 3. Lift the unit and take it out of the set. When defective, replace the whole unit.
1
I_17750_008.eps 250208
1
Figure 4-7 Speaker 4.3.3 IR & LED Panel Refer to next figure for details. 1. Unplug connectors [1]. 2. Use a flat screw driver to release the clip by pushing in the indicated direction [2]. 3. Lift the board and take it out of the set. When defective, replace the whole unit. Figure 4-9 Key Board
H_17650_094.eps 180108
1
4.3.5
Main Power Supply Panel Refer to next figure for details. 1. Unplug connectors [1]. 2. Remove the fixation screws [2]. 3. Take the board out. When defective, replace the whole unit.
2
1
2
2
H_17650_098.eps 180108
1 2
2
Figure 4-8 IR & LED Board
1 (2x)
2 2
I_17820_025.eps 130308
Figure 4-10 Main Power Supply Panel
EN 12
4.3.6
4.
LC8.1L LA
Mechanical Instructions
Small Signal Board (SSB) Refer to next figure for details. Caution: it is mandatory to remount all different screws at their original position during re-assembly. Failure to do so may result in damaging the SSB. Refer to next figures or details. 1. Unplug the LVDS connector [1]. Caution: be careful, as this is a very fragile connector! 2. Unplug the connectors [2]. 3. Remove the screws [3]. 4. The SSB can now be taken out of the set, together with the side cover. 5. To remove the side cover, push back the clamp [4] using a screw driver. 6. Pull the cover sidewards from the SSB.
3
3 1
3 4
2 (4x)
3 3
3
I_17910_008.eps 070408
Figure 4-11 Small Signal Board 4.3.7 LCD Panel Refer to next figures for details. 1. Unplug the LVDS connector [1]. Caution: be careful, as this is a very fragile connector! 2. Unplug the connectors [2]. 3. Release the tape which fixes the wiring [3]. 4. Release the speaker connectors [4]. 5. Remove the fixation screws [5] from the support and take it out. The support hinges from the bottom side. 6. Remove the fixation screws [6] from the SSB support and take the SSB out together with it's support. 7. Remove the fixation screws [7] and remove the clamps. 8. Remove the fixation screws [8], that hold the subframe and the fixation screws [9], that hold the LCD panel. 9. Lift out the sub frame. 10. The LCD panel can now be lifted from the front cabinet.
Mechanical Instructions
LC8.1L LA
4.
EN 13
8
8
7
9
9
8
1
2 1 2 (4x)
8 3 7 2 4 9 4 4 9 4
8
8
8
8
I_17910_009.eps 080408
Figure 4-12 LCD Panel
6
6 5
5
5 6 6
I_17750_011.eps 250208
Figure 4-13 Support Figure 4-14 SSB Support
I_17910_010.eps 070408
EN 14 4.4
4.4.1
4.
LC8.1L LA
Mechanical Instructions
4.4.4 Keyboard Control Panel Refer to next figure for details. 1. Unplug the key board connector from the IR & LED board. 2. Remove the screws [1]. 3. Lift the unit and take it out of the set. When defective, replace the whole unit.
Assy/Panel Removal MG8 Styling
Rear Cover Warning: Disconnect the mains power cord before you remove the rear cover. Remove the stand before removing the backcover. Refer to ME8 description.
1
4.4.2
Speakers Refer to next figure for details. 1. Unplug the connectors [1]. 2. Remove the screws [2] and lift the speaker from the back cover.
1 (2x) 2 2
Figure 4-17 Key Board
I_17911_001.eps 300608 I_17911_003.eps 300608
1
4.4.5
Main Power Supply Panel 32" Refer to next figure for details. 1. Unplug connectors [1]. 2. Remove the fixation screws [2]. 3. Take the board out. When defective, replace the whole unit.
Figure 4-15 Speakers 4.4.3 IR & LED Panel Refer to next figure for details. 1. Unplug connectors [1]. 2. Release the clips and take the panel out. When defective, replace the whole unit.
2 1
2
2 2
1
(2x)
2 1 1 1 2
I_17911_004.eps 300608
I_17911_002.eps 300608
Figure 4-18 Main Power Supply Panel 32" 4.4.6 Main Power Supply Panel 42" Refer to next figure for details. 1. Unplug connectors [1]. 2. Remove the fixation screws [2]. 3. Take the board out. When defective, replace the whole unit.
Figure 4-16 IR & LED Board
Mechanical Instructions
LC8.1L LA
4.
EN 15
3 2 1
(2x)
3 3 1 4
2 3 2 1
(2x)
2 (3x)
2
2 2 3 3 3
I_17911_006.eps 300608
1
4.4.8
Figure 4-20 Small Signal Board LCD Panel The exchange of the LCD panel is not described in this manual.
2
2
I_17911_005.eps 300608
4.5
Set Re-assembly
To re-assemble the whole set, execute all processes in reverse order. Notes: · While re-assembling, make sure that all cables are placed and connected in their original position. See figure "Cable dressing". · Pay special attention not to damage the EMC foams on the SSB shields. Ensure that EMC foams are mounted correctly.
Figure 4-19 Main Power Supply Panel 42" 4.4.7 Small Signal Board (SSB) Refer to next figure for details. Caution: it is mandatory to remount all different screws at their original position during re-assembly. Failure to do so may result in damaging the SSB. Refer to next figures or details. 1. Unplug the LVDS connector [1]. Caution: be careful, as this is a very fragile connector! 2. Unplug the connectors [2]. 3. Remove the screws [3]. 4. The SSB can now be taken out of the set, together with the side cover. 5. To remove the side cover, push back the clamp [4] using a screw driver. 6. Pull the cover sidewards from the SSB.
EN 16
5.
LC8.1L LA
Service Modes, Error Codes, and Fault Finding
5. Service Modes, Error Codes, and Fault Finding
Index of this chapter: 5.1 Test Points 5.2 Service Modes 5.3 Service Tools 5.4 Error Codes 5.5 The Blinking LED Procedure 5.6 Software Upgrading 5.7 Fault Finding and Repair Tips 5.2.1 General Some items are applicable to all Service Modes or are general. These are listed below. Life Timer During the life time cycle of the TV set, a timer is kept. It counts the normal operation hours (not the Stand-by hours). The actual value of the timer is displayed in SDM and CSM in a decimal value. Every two soft-resets increase the hour by +1. Software Identification, Version, and Cluster The software ID, version, and cluster will be shown in the main menu display of SDM, SAM, and CSM. The screen will show: "AAAABCD X.YY", where: · AAAA is the chassis name: LC81. · B is the region indication: E= Europe, A= AP/China, U= NAFTA, L= LATAM. · C is the display indication: L= LCD, P= Plasma. · D is the language/feature indication: 1= standard, H= 1080p full HD. · X is the main version number: this is updated with a major change of specification (incompatible with the previous software version). Numbering will go from 1 - 9 and A - Z. If the main version number changes, the new version number is written in the NVM. If the main version number changes, the default settings are loaded. · YY is the sub version number: this is updated with a minor change (backwards compatible with the previous versions) Numbering will go from 00 - 99. If the sub version number changes, the new version number is written in the NVM. If the NVM is fresh, the software identification, version, and cluster will be written to NVM. Display Option Code Selection When after an SSB or display exchange, the display option code is not set properly, it will result in a TV with "no display". Therefore, it is required to set this display option code after such a repair. To do so, press the following key sequence on a standard RC transmitter: "062598" directly followed by MENU and "xxx", where "xxx" is a 3 digit decimal value of the panel type: see column "Display code" in table "Option code overview" (ch. 8), or see sticker on the side/bottom of the cabinet. When the value is accepted and stored in NVM, the set will switch to Stand-by, to indicate that the process has been completed.
5.1
Test Points
In the chassis schematics and layout overviews, the test points (Fxxx) are mentioned. In the schematics, test points are indicated with a rectangular box around "Fxxx" or "Ixxx", in the layout overviews with a "half-moon" sign. As most signals are digital, it will be difficult to measure waveforms with a standard oscilloscope. Several key ICs are capable of generating test patterns, which can be controlled via ComPair. In this way it is possible to determine which part is defective. Perform measurements under the following conditions: · Service Default Mode. · Video: Color bar signal. · Audio: 3 kHz left, 1 kHz right.
5.2
Service Modes
The Service Mode feature is split into four parts: · Service Default Mode (SDM). · Service Alignment Mode (SAM). · Customer Service Mode (CSM). · Digital Customer Service Mode (DCSM). · Computer Aided Repair Mode (ComPair). SDM and SAM offer features, which can be used by the Service engineer to repair/align a TV set. Some features are: · A pre-defined situation to ensure measurements can be made under uniform conditions (SDM). · Activates the blinking LED procedure for error identification when no picture is available (SDM). · The possibility to overrule software protections when SDM was entered via the Service pins. · Make alignments (e.g. white tone), (de)select options, enter options codes, reset the error buffer (SAM). · Display information ("SDM" or "SAM" indication in upper right corner of screen, error buffer, software version, operating hours, options and option codes, sub menus). The CSM is a Service Mode that can be enabled by the consumer. The CSM displays diagnosis information, which the customer can forward to the dealer or call centre. In CSM mode, "CSM", is displayed in the top right corner of the screen. The information provided in CSM and the purpose of CSM is to: · Increase the home repair hit rate. · Decrease the number of nuisance calls. · Solved customers' problem without home visit. ComPair Mode is used for communication between a computer and a TV on I2C /UART level and can be used by a Service engineer to quickly diagnose the TV set by reading out error codes, read and write in NVMs, communicate with ICs and the uP (PWM, registers, etc.), and by making use of a fault finding database. It will also be possible to up and download the software of the TV set via I2C with help of ComPair. To do this, ComPair has to be connected to the TV set via the ComPair connector, which will be accessible through the rear of the set (without removing the rear cover).
Display Option Code
39mm
PHILIPS
27mm
040
MODEL: 32PF9968/10
PROD.SERIAL NO: AG 1A0620 000001
(CTN Sticker)
E_06532_038.eps 240108
Figure 5-1 Location of Display Option Code sticker During this algorithm, the NVM-content must be filtered, because several items in the NVM are TV-related and not SSBrelated (e.g. Model and Prod. S/N). Therefore, "Model" and "Prod. S/N" data is changed into "See Type Plate". In case a call centre or consumer reads "See Type Plate" in CSM mode, he needs to look to the side/bottom sticker to identify the set, for further actions.
Service Modes, Error Codes, and Fault Finding
5.2.2 Service Default Mode (SDM) Purpose Set the TV in SDM mode in order to be able to: · Create a pre-defined setting for measurements to be made. · Override software protections. · Start the blinking LED procedure. · Read the error buffer. · Check the life timer. Specifications Table 5-1 SDM default settings Region Europe (except France), AP-PAL/-Multi France NAFTA, AP-NTSC LATAM · · Freq. (MHz) 475.25 Default syst. PAL B/G SECAM L 61.25 (channel 3) NTSC M PAL M
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SDM
I_17820_029.eps 130308
Figure 5-2 Service jumper (SSB component side) On Screen Menu After activating 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.
S D M HHHHH A A A A B C D - X . Y Y E R R X X X X X X X X X X O P X X X X X X X X X X X X
Set linear video and audio settings to 50%, but volume to 25%. Stored user settings are not affected. All service-unfriendly modes (if present) are disabled, since they interfere with diagnosing/repairing a set. These service unfriendly modes are: (Sleep) timer. Blue mute/Wall paper. Auto switch "off" (when there is no "ident" signal). Hotel or hospital mode. Child lock or parental lock (manual or via V-chip). Skipping, blanking of "Not favourite", "Skipped" or "Locked" presets/channels. Automatic storing of Personal Preset or Last Status settings. Automatic user menu time-out (menu switches back/ OFF automatically. Auto Volume levelling (AVL).
X X X
X X X
G_16860_030.eps 260107
Figure 5-3 SDM menu Menu explanation: · HHHHH: Are the operating hours (in decimal). · AAAABCD-X.YY: See paragraph "Service Modes" -> "General" -> "Software Identification, Version, and Cluster" for the SW name definition. · SDM: The character "SDM" to indicate that the TV set is in Service mode. · ERR: Shows all errors detected since the last time the buffer was erased. Five errors possible. · OP: Used to read-out the option bytes. See "Options" in the Alignments section for a detailed description. Seven codes are possible. How to Navigate As this mode is read only, there is not much to navigate. To switch to other modes, use one of the following methods: · Command MENU from the user remote will enter the normal user menu (brightness, contrast, color, etc...) with "SDM" OSD remaining, and pressing MENU key again will return to the last status of SDM again. · To prevent the OSD from interfering with measurements in SDM, command "OSD" ("STATUS" for NAFTA and LATAM) from the user remote will toggle the OSD "on/off" with "SDM" OSD remaining always "on". · Press the following key sequence on the remote control transmitter: "062596" directly followed by the OSD/ STATUS/INFO/i+ button to switch to SAM (do not allow the display to time out between entries while keying the sequence).
How to Activate To activate 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 (see Figures "Service jumper"). Then press the mains button (remove the short after start-up). Caution: Activating SDM by shorting "Service" jumpers will override the DC speaker protection (error 1), the General I2C error (error 4), and the Trident video processor error (error 5). When doing this, the service-technician must know exactly what he is doing, as it could damage the television set.
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5.
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Service Modes, Error Codes, and Fault Finding
5. OP (Option Bytes). Used to read-out the option bytes. See "Options" in the Alignments section for a detailed description. Seven codes are possible. 6. 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. 7. Options. Used to set the option bits. See "Options" in the "Alignments" chapter for a detailed description. 8. Tuner. Used to align the tuner. See "Tuner" in the "Alignments" chapter for a detailed description. 9. RGB Align. Used to align the White Tone. See "White Tone" in the "Alignments" chapter for a detailed description. 10. NVM Editor. Can be used to change the NVM data in the television set. See also paragraph "Fault Finding and Repair Tips" further on. 11. ComPaIr. Can be used to switch the television to "In Application Programming" mode (IAP), for software uploading via ComPair. Read paragraph "Service Tools" > "ComPair". Caution: When this mode is selected without ComPair connected, the TV will be blocked. Remove the AC power to reset the TV. 12. SW Events. Only to be used by development to monitor SW behavior during stress test. How to Navigate · In the SAM menu, 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 sub menu. · When you press the MENU button twice while in top level SAM, the set will switch to the normal user menu (with the SAM mode still active in the background). To return to the SAM menu press the MENU button. · Command OSD/STATUS/INFO/i+ button from the user remote will toggle the OSD "on/off" with "SAM" OSD remaining always "on". · 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 (except the OPTIONS settings), 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. Note: · When the TV is switched "off" by a power interrupt while in SAM, the TV will show up in "normal operation mode" as soon as the power is supplied again. The error buffer will not be cleared. · In case the set is in Factory mode by accident (with "F" displayed on screen), by pressing and hold "VOL-" and "CH-" together should leave Factory mode.
How to Exit Switch the set to STANDBY by pressing the mains button on the remote control transmitter or on the television set. If you switch the television set "off" by removing the mains (i.e., unplugging the television), the television set will remain in SDM when mains is re-applied, and the error buffer is not cleared. The error buffer will only be cleared when the "clear" command is used in the SAM menu. Note: · If the TV is switched "off" by a power interrupt while in SDM, the TV will show up in the last status of SDM menu as soon as the power is supplied again. The error buffer will not be cleared. · In case the set is in Factory mode by accident (with "F" displayed on screen), by pressing and hold "VOL-" and "CH-" together should leave Factory mode. 5.2.3 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, and Audio). · NVM Editor. · ComPair Mode switching. · Set the screen mode to full screen (all contents on screen are viewable). How to Activate To activate 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 (it depends on region which button is present on the RC). 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.
S A M L L L L L E R R X X O P X X X C O T R N C S l p u G V o W e t n B M m a r i o n e r A l E d p a i E V E A A A A B C D - X . Y Y X X X X X X X X X X X X X X X X X X X X > > > > > > > Y e s
X X X
s i g n i t o r r N T S
G_16860_031.eps 260107
Figure 5-4 SAM menu Menu explanation: 1. LLLLL. This represents the run timer. The run timer counts normal operation hours, but does not count Stand-by hours. 2. AAAABCD-X.YY. See paragraph "Service Modes" -> "General" -> "Software Identification, Version, and Cluster" for the SW name definition. 3. SAM. Indication of the Service Alignment Mode. 4. ERR (ERRor buffer). Shows all errors detected since the last time the buffer was erased. Five errors possible.
Service Modes, Error Codes, and Fault Finding
5.2.4 Customer Service Mode (CSM) Purpose The Customer Service Mode shows error codes and information on the TV's operation settings. A call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set. This helps them to diagnose problems and failures in the TV before making a service call. The CSM is a read-only mode; therefore, modifications are not possible in this mode. Specifications · Ignore "Service unfriendly modes". · Line number for every line (to make CSM language independent). · Set the screen mode to full screen (all contents on screen are viewable). · After leaving the Customer Service Mode, the original settings are restored. · Possibility to use "CH+" or "CH-" for channel surfing, or enter the specific channel number on the RC. How to Activate To activate 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:
C S M 1 M O D E 2 P R O D 3 S W I 4 O P 5 C O D E 6 S S B 7 N V M 8 F l a s 9 D I S P PAGE DOWN : 3 S / N : L : X S : X : 3 : X h D a L A Y D
B y
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Menu Explanation 1. MODEL. Type number, e.g. 32PFL5403/55. (*) 2. PROD S/N. Product serial no., e.g. AG1A0712123456. (*) 3. SW ID. Software cluster and version is displayed. 4. OP. Option code information. 5. CODES. Error buffer contents. 6. SSB. Indication of the SSB factory ID (= 12nc). (*) 7. NVM. The NVM software version no. 8. Flash Data. PQ (picture quality) and AQ (audio quality) data version. This is a sub set of the main SW. 9. DISPLAY. Indication of the display ID (=12 nc). 10. TUNER. Indicates the tuner signal condition: "Weak" when signal falls below threshold value, "Medium" when signal is at mid-range, and "Strong" when signal falls above threshold value. 11. SYSTEM. Gives information about the video system of the selected transmitter (PAL/SECAM/NTSC). 12. SOUND. Gives information about the audio system of the selected transmitter (MONO/STEREO/NICAM/BTSC). 13. HDAU. HDMI audio stream detection. "YES" means audio stream detected. "NO" means no audio stream present. Only displayed when HDMI source is selected. 14. FORMAT. Gives information about the video format of the selected transmitter (480i/480p/720p/1080i). 15. Reserved. 16. FPGA FW. Only applicable to sets with an FPGA. 17. Reserved. 18. Reserved. (*) If an NVM IC is replaced or initialized, the Model Number, Serial Number, and SSB Code Number must be re-written to the NVM. ComPair will foresee in a possibility to do this. 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.
L
2 : C X X 1 X t :
P F L 5 4 0 A G 1 A 0 8 8 1 L L 1 X X X X X X X X 3 9 1 2 3 X X X X X X a : X X . X xxxx xxx xxxxx
3 1 0 X
/ 2 . X X 6
5 1 x X X 3
5 2 3 x X X 4 3
4 5 6 X X X 1 X X X X X X X X X
X . X X . X X
I_17910_003.eps 030408
Figure 5-5 CSM menu -1- (example)
C S M 1 0 T U 1 1 S Y 1 2 S O 1 3 H D 1 4 F O 1 5 : 1 6 F P 1 7 : 1 8 : PAGE UP N S U A R E T N U M R : E M: D : : A T : WE A K / P A L / N MO N O / YES/NO X X X X X G OOD/ S T R ONG T S C / S E C A M S T E R E O/ NI C A M X X X
G A
F W : xx.xx.xx
:
B y
I_17820_041b.eps 140308
Figure 5-6 CSM menu -2- (example)
EN 20 5.3
5.3.1
5.
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Service Modes, Error Codes, and Fault Finding 5.4
5.4.1
Service Tools
ComPair Introduction ComPair (Computer Aided Repair) is a Service tool for Philips Consumer Electronics products. and offers the following: 1. ComPair helps you to quickly get an understanding on how to repair the chassis in a short and effective way. 2. ComPair allows very detailed diagnostics and is therefore capable of accurately indicating problem areas. You do not have to know anything about I2C or UART 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 uP is working) and all repair information is directly available. 4. ComPair features TV software up possibilities. Specifications ComPair consists of a Windows based fault finding program and an interface box between PC and the (defective) product. The (new) ComPair II interface box is connected to the PC via an USB cable. For the TV chassis, the ComPair interface box and the TV communicate via a bi-directional cable via the service connector(s). How to Connect This is described in the ComPair chassis fault finding database.
TO TV
TO UART SERVICE CONNECTOR TO I2C SERVICE CONNECTOR TO UART SERVICE CONNECTOR
Error Codes
Introduction Error codes are required to indicate failures in the TV set. In principle a unique error code is available for every: · Activated protection. · Failing I2C device. · General I2C error. · SDRAM failure. The last errors, stored in the NVM, are shown in the Service menu's. This is called the error buffer. 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. An error will be added to the buffer if this error differs from any error in the buffer. The last found error is displayed on the left. An error with a designated error code may never lead to a deadlock situation. This means that it must always be diagnosable (e.g. error buffer via OSD or blinking LED procedure, ComPair to read from the NVM). In case a failure identified by an error code automatically results in other error codes (cause and effect), only the error code of the MAIN failure is displayed. Example: In case of a failure of the I2C bus (CAUSE), the error code for a "General I2C failure" and "Protection errors" is displayed. The error codes for the single devices (EFFECT) is not displayed. All error codes are stored in the same error buffer (TV's NVM) except when the NVM itself is defective.
ComPair II RC in RC out
Multi function
5.4.2
Optional Power Link/ Mode Switch Activity I2C RS232 /UART
How to Read the Error Buffer You can read the error buffer in 3 ways: · On screen via the SAM/SDM/CSM (if you have a picture). Example: 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.
PC
ComPair II Developed by Philips Brugge
HDMI I2C only
Optional power 5V DC
E_06532_036.eps 150208
Figure 5-7 ComPair II interface connection 5.4.3 Caution: It is compulsory to connect the TV to the PC as shown in the picture above (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! How to Order ComPair II order codes: · ComPair II interface: 3122 785 91020. · The latest ComPair software can be found on the Philips Service website. · ComPair I2C interface cable: 9965 100 07325 (to be used for upgrading the Main software). Note: If you encounter any problems, contact your local support desk. 5.3.2 LVDS Tool Support of the LVDS Tool has been discontinued. 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).
Service Modes, Error Codes, and Fault Finding
Table 5-2 Error code overview
Error code1) 0 1 2 3 4 5
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5.5
Item no. Remarks
The Blinking LED Procedure
Introduction The software is capable of identifying different kinds of errors. Because it is possible that more than one error can occur over time, an error buffer is available, which is capable of storing the last five errors that occurred. This is useful if the OSD is not working properly. Errors can also be displayed by the blinking LED procedure. The method is to repeatedly let the front LED pulse with as many pulses as the error code number, followed by a period of 1.5 seconds in which the LED is "off". Then this sequence is repeated. Example (1): error code 4 will result in four times the sequence LED "on" for 0.25 seconds / LED "off" for 0.25 seconds. After this sequence, the LED will be "off" for 1.5 seconds. Any RC5 command terminates the sequence. Error code LED blinking is in red color. Example (2): the content of the error buffer is "1 2 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.
Description No error. DC Protection of speakers. +12V protection error. Reserved. General I2C error. Trident Video Processor communication error.
5.5.1
12V missing or "low". note 2 7C02 When Trident IC is defective, error 10 and 14 might also be reported. Trident communicates via parallel bus, not via the I2C bus. The I2C bus of Trident is only used in ComPair mode. The TV will not start-up due to critical data not available from the NVM, but the LED will blink the error code.
6
I2C error while communicating 7L23 with the NVM.
7 8 9 10 11 12
I2C error while communicating 1101 with the Tuner. I2C error while communicating 7113 with the IF Demodulator. I2C error communicating with 7411 the Sound Processor. SDRAM defective. 7C04 I2C error while communicating 7N17 with the HDMI IC. Brazil/China ISDTV digital bolt-on module communication failure Reserved SDRAM defective. Reserved Reserved Reserved (7700 or I2C error while external) communicating with FPGA (only applicable to AmbiLight sets) (iTV) 1080p 100Hz sets only 7C05
13 14 15 16 17
5.5.2
Displaying the Entire Error Buffer Additionally, the entire error buffer is displayed when Service Mode "SDM" is entered. In case the TV set is in protection or Stand-by: The blinking LED procedure sequence (as in SDMmode in normal operation) must be triggered by the following RC sequence: "MUTE" "062500" "OK". In order to avoid confusion with RC5 signal reception blinking, this blinking procedure is terminated when a RC5 command is received. To erase the error buffer, the RC command "MUTE" "062599 "OK" can be used.
18 19 20 21
Reserved (iTV) I2C error while communicating with bolt-on DFI Reserved Reserved (7M07)
I2C error while communicating with the HDMI mux IC
22 23
Reserved. Reserved.
5.6
Notes 1. Some of the error codes reported are depending on the option code configurations. 2. This error means: no I2C device is responding to the particular I2C bus. Possible causes: SCL/SDA shorted to GND, SCL shorted to SDA, or SCL/SDA open (at uP pin). The internal bus of the Trident platform should not cause the entire system to halt as such an error can be reported. 5.4.4 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/INFO/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.
Software Upgrading
In this chassis, the following SW "stack" is used: · TV main SW (processor and processor NVM).
5.6.1
TV Main SW Upgrade For instructions on how to upgrade the TV Main software, refer to ComPair.
EN 22 5.7
5.
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Service Modes, Error Codes, and Fault Finding
Alternative method (1): 1. Go to SAM. 2. Select NVM Editor. 3. Select ADR (address) to 1 (dec). 4. Change the VAL (value) to 170 (dec). 5. Store the value. 6. Do a hard reset to make sure new default values took place. Alternative method (2): It is also possible to upload the default values to the NVM with ComPair in case the SW is changed, the NVM is replaced with a new (empty) one, or when the NVM content is corrupted. After replacing an EEPROM (or with a defective/no EEPROM), default settings should be used to enable the set to start-up and allow the Service Default Mode and Service Alignment Mode to be accessed. 5.7.3 Start-up/Shut-down Flowcharts On the next pages you will find start-up and shut-down flowcharts, followed by a trouble shooting flowchart, which might be helpful during fault finding. Please note that some events are only related to PDP sets, and therefore not applicable to this LCD chassis.
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.
5.7.1
NVM Editor In some cases, it can be convenient 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! · Always write 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 5-3 NVM editor overview
Hex .ADR .VAL .Store 0x000A 0x0000 Store? Dec 10 0 Description Existing value New value
5.7.2
Load Default NVM Values It is possible to download default values automatically into the NVM in case a blank NVM is placed or when the NVM first 20 address contents are "FF". After the default values are downloaded, it is possible to start-up and to start aligning the TV set. To initiate a forced default download the following action has to be performed: 1. Switch "off" the TV set with the mains cord disconnected from the wall outlet (it does not matter if this is from "Stand-by" or "Off" situation). 2. Short-circuit the SDM jumpers on the SSB (keep short circuited). 3. Press "P+" or "CH+" on the local keyboard (and keep it pressed). 4. Reconnect the mains supply to the wall outlet. 5. Release the "P+" or "CH+" when the set is "on" or blue LED is blinking. When the downloading has completed successfully, the set should be into Stand-by, i.e. red LED on.
Service Modes, Error Codes, and Fault Finding
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LC08E Start Up
V1.0 21 Aug 2007
AC ON +3V3STBY Available 160ms M16C POR by +3VSTBY STANDBY = HIGH
Error 6 - NVM [Protection]
InitCold Component: 1. Check SDM port. - If SDM pin = LOW and NVM first 20Byte = 0xFF, reload Software default NVM value. 2. Check Panel port. - If Panel Pin = LOW and check slave address 0x65 = 0xA5, Enter Panel Mode.
No
Last status is ON?
Yes Read NVM completed. STOP I²C activities . Yes LED = WHITE for Normal mode LED = RED for Recording mode Disable Audio Mute Standby Soft Mode (NO LED) Standby Normal Mode (RED LED)
User wake up the sets in DVB recording mode
No
Standby Normal Mode
LCD_PWR_ON = HIGH (Same function as CTRL-DISP2) SDI PDP => CTRL_DISP1 = LOW BL_On_Off=HIGH (PDP only)
BLOCK RC Key
20ms
Wait for 20 ms
Port Assignment in STANDBY
Disable Audio Mute Port Assignment in STANDBY Yes
Wait for Power Local Key
Wait for RC key or Wake up event
(M16C) SVPCX_RST = HIGH HDMI_RX_BUF_RST = LOW HDMI_MUX_RST =LOW AUD_RST = LOW Enable Audio Mute 1000ms to 1500ms
Switch ON LVDS Signal
Wait for 50ms
Init. Warm Component (For software)
LCD_PWR_ON = LOW SDI PDP => CTRL_DISP1 = LOW BL_On_Off = HIGH (PDP only) STANDBY = LOW (Same function as CTRL-DISP3)
For LCD: BL_ON_OFF = HIGH * BL_ADJ keep 100% for 3000ms before dimming.
For PDP: 3000ms delay
100ms
Wait for 100ms Blank Picture Picture Mode Setup & Detection
Error 2 [Protection]
Wait for 100ms Time out = 2000ms
No
Is Power Down = HIGH? Yes unBlank Picture & UnMute Audio
Notes: --------1.Initialise HDMI MUX IIC address ( EDID,CEC) 2. Enable Mute mean ANTI _PLOP= LOW, MUTEn=HIGH 3. Disable Mute mean ANTI _PLOP = HIGH, MUTEn=LOW
300ms
Wait for 300ms End (SVP_Trident) M16C SVPCX_RST = LOW HDMI_RX_BUF_RST= HIGH HDMI_MUX_RST =HIGH AUD_RST = HIGH No Enable Power Down INT Enable DC_PROT INT Initialise Trident CX KMNPLL Latch data need 50us setup time BL_ADJ = HIGH (100% Duty Cycle) first!! DPTVInit( ) Error 5 - Trident [Protection] Error 10 SDRAM 7C04 [Protection] Error 14 SDRAM 7C05 [Protection]
1700ms
Error 7
Initialise Tuner
Error 8
Initialise IF Demodulator, Afric TDA9886T Initialise Micronas Mute Audio
For DVB Sets only (Semistandby) Recording mode SDI PDP => CTRL_DISP1 = HIGH FHP PDP => CTRL_DISP4 = LOW BL_On_Off=LOW (PDP only)
Error 9
Error 11
Initialise HDMI Receiver , Sil 9025
Recording Mode finished Error 21
Initialise HDMI Mux, Sil 9185
Software Shutdown:
AmbiLight Set Only Initialise AmbiLight Yes Error 3 [Protection] Initialise FHP Panel (Provision) * For FHP PDP Sets only Initialise Bolt -ON (100Hz, iTV, USB) TBC
Error 17 AmbiLight
WP for NVM
Error 18 iTV
Error 19 DFI/Bolt-On
Port Assignment in STANDBY
Enable RC Key STANDBY = LOW
Standby Normal Mode
DVB recording mode
I_17820_030.eps 130308
Figure 5-8 Start-up flowchart
EN 24
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Service Modes, Error Codes, and Fault Finding
STANDBY / TACT SWITCH STANDBY
Start
Mute Audio
(ANTI_PLOP=LOW) (MUTEn =HIGH)
BL_ADJ (PWM duty cycle 100%)
BL_ON_OFF = LOW
300ms
Wait 300ms
Switch OFF LVDS
20ms
Wait 20ms
LCD_PWR_ON = LOW
Software Shutdown:
LED = RED For DVB Sets only (Semistandby) Wait for 3000ms Except power tact switch
No
Standby using "power key"
Yes LED = NO LED for Standby soft mode
SDI PDP => CTRL_DISP1 = HIGH FHP PDP => CTRL_DISP4 = LOW
Disable Power Down INT & DC_PROT_INT
Off Air Downloading/ Recording Mode BL_ADJ = LOW (PWM duty cycle 0%) IBOZ send shut down command WP for NVM
Enable Audio Mute Port Assignment in STANDBY
(ANTI_PLOP =HIGH) (MUTEn = LOW) Sets go to standby here
40ms Total = 360ms
STANDBY = HIGH
Blocking for the next start up to ensure power supply discard properly.
Wait for 3000ms
Disable Audio Mute
(ANTI_PLOP =HIGH) (MUTEn = LOW)
End
I_17820_031.eps 130308
Figure 5-9 Stand-by / Tact Switch Stand-by flowchart
Service Modes, Error Codes, and Fault Finding
LC8.1L LA
5.
EN 25
Power Down INT: AC OFF or Transient INT
Avoid false trigger No
Start
Poll the Power Down INT for 5 times Yes
End
Mute Audio & VIdeo
Notes: 1. Power Down INT will based on fall edge triggering 2. +3V3STBY will stay for 15ms, software must perform WP for NVM within 15ms.
WP for NVM
STANDBY = HIGH
Wait 5000 ms
Re-start: Start up
End
DC_PROT INT
Start
Avoid false trigger No is DC_PROT = LOW for 3 sec?
Yes End Mute Audio & VIdeo
Error 1 [Protection]
Log Error Code
WP for NVM
STANDBY = HIGH
End
I_17820_032.eps 130308
Figure 5-10 Power Down & DC_PROT flowchart
EN 26
5.
LC8.1L LA
Service Modes, Error Codes, and Fault Finding
Personal Notes:
E_06532_012.eps 131004
Block Diagrams, Test Point Overview, and Waveforms
LC8.1L LA
6.
27
6. Block Diagrams, Test Point Overview, and Waveforms
Wiring Diagram 32" LCD
WIRING 32" (STYLING ME8 / MG8)
LCD DISPLAY (1004)
LVDS INPUT 30P
8R50
INVERTER
CN2 / 1319
14. PDIM_Select 13. PWM 12. BL_ON_OFF 11. BOOST 10. GND3 9. GND3 8. GND3 7. GND3 6. GND3 5. 24Vinv 4. 24Vinv 3. 24Vinv 2. 24Vinv 1. 24Vinv
B
SSB
(1150)
8316
A
MAIN POWER SUPPLY
(1005)
14P
CN6 / 1M95
1. 3.3V stby 2. STANDBY 3. GND1 4. GND1 5. GND1 6. +12V 7. +12V 8. +12V 9. 12V (audio) 10. GND2 (audio) 11. -12V (audio)
8P01
1P01 (B01) 11. -12VAudio 10. GNDSND 9. +12VAudio 8. +12_DISP 7. +12_DISP 6. +12_DISP 5. GND 4. GND 3. GND 2. STANDBY 1. +3V3STBY 1P02 (B01)
8. 7. 6. 5. 4. 3. 2. 1. GND BL_BOOST BL_ADJUST_PWM BL_ON_OFF GND GND +12_DISP +12_DISP
CN7 / 1M99
1. 2. 3. 4. 5. 6. 7. 8. +12V +12V GND1 GND1 BL_ON_OFF DIM BOOST ANALOG_PWM
8P02
E KEYBOARD CONTROL (0025)
CN1 / 1308
1A35 (B05B)
4. 3. 2. 1. RIGHTGND GND LEFT+ 2. L 1. N
1320 (B03)
8308 8A35 9. 8. 7. 6. 5. 4. 3. 2. 1. TACT_SWITCH_INT +5V_SW KEYB LED1 +3V3_STBY LED2 REMOTE GND LIGHT_SENSOR
INLET
J1
1. 2. 3. 4. GND KEYBOARD +3V3STBY INTERRUPT 8P11 8320
GND KEYBOARD +3V3STBY TACT_SWITCH_INT
1P11
LIGHT-SENSOR GNDSND RC LED2 +3V3-STANDBY LED1 KEYBOARD +5V KEYBOARD
1R50 (B04B) 1. VDISP 2. GND . . 30.
1P10
+ -
+ -
1. 2. 3. 4.
1. 2. 3. 4. 5. 6. 7. 8. 9.
J
IR LED PANEL
(1112)
RIGHT SPEAKER
(5211) IN BACK COVER
LEFT SPEAKER
(5212) IN BACK COVER
I_17820_015.eps 010708
Block Diagrams, Test Point Overview, and Waveforms
LC8.1L LA
6.
28
Wiring Diagram 42" LCD
WIRING DIAGRAM 42" (STYLING ME8 / MG8)
LCD DISPLAY (1004)
LVDS INPUT 30P FOR 768P
8R50
8401
8402
1. HV1 2. N.C. 3. HV1
MAIN POWER SUPPLY
(1005)
TO BACKLIGHT
1. HV2 2. N.C. 3. HV2
CN2
CN3
1R50 (B04B) 1. VDISP 2. GND . . 30.
DANGEROUS HIGH VOLTAGE
DANGEROUS HIGH VOLTAGE
B
SSB
(1150)
CN6
1. 3V3ST 2. Standby 3. GND 4. GND 5. GND 6. 12Vssb 7. 12Vssb 8. 12Vssb 9. +12Vaud 10. GND_aud 11. -12Vaud
8P01
1P01 (B01A) 11. -12VAudio 10. GNDSND 9. +12VAudio 7. +12VS 6. +12VS 5. GND 4. GND 3. GND 2. STANDBY 1. +3V3STBY 1P02 (B01A)
8. 7. 6. 5. 4. 3. 2. 1. ANA-DIG_DIM_SELECT BACKLIGHT_BOOST PWM_DIMMING BACKLIGHT_ON_OFF GND GND +12Vdisp +12Vdisp
CN7
1. 2. 3. 4. 5. 6. 7. 8. 12Vssb 12Vssb GND GND INV_ON DIM BOOST GND 8P02
E KEYBOARD CONTROL (0025)
1A35 (B05B)
4. 3. 2. 1. RIGHT+ GND GND LEFT-
TUNER
1320 (B03)
9. 8. 7. 6. 5. 4. 3. 2. 1. KEYBOARD +5V_SW KEYBOARD LED1 +3V3STBY LED2 IR GND LIGHT_SENSOR
CN1
1. N 2. L 8308 INLET 8A35
J1
1. 2. 3. 4.
GND KEYBOARD +3V3STBY INTERRUPT
1M01 3P
8P11
8320
GND KEYBOARD +3V3STBY TACT_SWITCH_INT
LIGHT-SENSOR GNDSND RC LED2 +3V3-STANDBY LED1 KEYBOARD +5V KEYBOARD
+ -
+ -
1P11
1P10
1. 2. 3. 4.
J
IR LED PANEL
(1112)
1. 2. 3. 4. 5. 6. 7. 8. 9.
RIGHT SPEAKER
ME8 (5215) TWEETER (5211) WOOFER IN BACK COVER MG8 (5211) FULL RANGE SPEAKER
LEFT SPEAKER
ME8 (5215) TWEETER (5212) WOOFER IN BACK COVER MG8 (5212) FULL RANGE SPEAKER
TO BACKLIGHT
I_17911_007.eps 010708
Block Diagrams, Test Point Overview, and Waveforms
LC8.1L LA
6.
29
Block Diagram Video
VIDEO
B02 TUNER IF & DEMODULATOR
SAW_SW 7109 SAW_SW 6103 7113 TDA9886T/V4 +5VS 20 RC VCO VIF-PLL 15 REF DIDITAL VCO COTROL SOUND TRAPS 4.5 to 6.5 Mhz CVBS 17 7114 EF 1104 4M0
B04A TRIDENT - CX32
7C02 CX32-LF
B04B LVDS CONNECTOR
1R50 VDISP 1 3 5 7
B03 (CONTROL)
1101 UV1336/ANH 11 IF_OUT3 IF_ATV
1102 1 2
5 4 45MHz75
1 VIF1 2 VIF2
SUPPLY
CVBS_RF
169 CVBS1
51 50 49 48 45 LVDS OUT 44 41 40 43 42
TXAn TXAp TXBn TXBp TXCn TXCp TXDn TXDp TXCLKn TXCLKp
1R10
TXAn1 TXAp1
2 4 6 8 12 14 24 26 18 20 29 30 LVDS CONNECTOR TO DISPLAY
TUNER
DEMODULATOR
23 SIF1 24 SIF2 SIF AGC SINGLE REFERENCE QSS MIXER INTERCARRIER MIXER AND AM-DEMODULATOR MAD SDA VIF AGC I2C-BUS TRANSCEIVER SCL
1R11
TXBn1 TXBp1
1R12
TXCn1 TXCp1
DC_PWR
1
RF_AGC
14 TAGC
1R13
TXDn1 TXDp1
TUNER AGC
(I2C)
1R14
TXCLKn1 TXCLKp1
B06A YPBPR & SVHS
1615 Pr CVI Y 7 12 9 Pb 1602 2 VIDEO SIDE I/O S SVHS 5 2 4 1601 1 SVHS_Y_CVBS_IN 3 SVHS_C_IN 192 182 HD_PR_IN HD_Y_IN HD_PB_IN 188 180 196
ANALOG VIDEO
CX32 VIDEO PROCESSOR
PR_R1 Y_G1 PB_B1
Y_G3 C
XTALI
205 1C01 14M31818
XTALO
204
B06B I/O - CINCH 1 & 2
1502 VIDEO IN 1504 Pr CVI Y 15 11 7 Pb SC1_R__IN SC1_G__IN SC1_B__IN 170 171 197 FS-2 177 CX_AVDD_ADC1 FS-1 SUPPLY PB_B-2 B4 CX_AVDD_ADC2 SC2_Y_CVBS_IN 181 15
Y_G1
L16 CX_AVDD_ADC3 D18 CX_AVDD_ADC4
B06C VGA & PC AUDIO & COMPAIR & UART
1E01 1
10 5 15
K3
CX_AVDD3_ADC1
VGA_R_IN VGA_G_IN VGA_B_IN
2 3 13 14
PC_R 183 PC_G 199 PC_B
7C03
191
1
6 11
VGA CONNECTOR
VGA_H VGA_V
1 5
4 8
158 159
AIN_H AIN_V 7C04 IS42S16400F-6TL
B06D HDMI MAIN
1N10 1 3
1 2
7N17 SIL9025CTU RX2_A+ RX2_ARX1_A+ RX1_ARX0_A+ RX0_ARXC_A+ RXC_A52 51 48 47 44 43 40 39 HDMI_Y(0-7) DIGITAL VIDEO HDMI_Cr(0-7) MEMORY
(0-11)
DRAM
1Mx16x4 DQ (0-15) 7C05 IS42S16400F-6TL CX_MA (0-11)
4 6 7 9 10 12 1N11 1 3
19 18
HDMI A CONNECTOR
HDMI MAIN
HDMI_Cb0-7) 2 3 1 121 97 1N23 28M322 HDMI_RX_BUF_RST B03 (CONTROL) HDMI_H HDMI_V HDMI_DE HDMI_VCLK 4 DP_HS 5 DP_VS 6 DP_DE 23 DP_CLK
DRAM
1Mx16x4 (16-31)
RX2_B+ RX2_BRX1_B+ RX1_BRX0_B+ RX0_BRXC_B+ RXC_B-
71 70 67 66 63 62 59 58
1 2
4 6 7 9 10 12
19 18
96 102
HDMI B CONNECTOR
I_17910_002.eps 260608
Block Diagrams, Test Point Overview, and Waveforms
LC8.1L LA
6.
30
Block Diagram Audio
AUDIO
B02 TUNER IF & DEMODULATOR
7113 TDA9886T/V4 1101 UV1336/ANH +VTUN 9 IF1 11 IF-ATV 2117 1 4 45MHz75 23 SIF1 24 SIF2 DC_PWR 1 3124 SIF AGC RF_AGC 14 TAGC TUNER AGC VIF AGC SINGLE REFERENCE QSS MIXER INTERCARRIER MIXER AND AM-DEMODULATOR MAD I2C-BUS TRANSCEIVER SDA SCL SIOMAD 12 SIF 63 67 1104 4M0 ANA-IN1+ XTALIN 27 26 AUDIO_LS_L AUDIO_LS_R 3A03 2 VIF2 2 VIF2 1102 5 VIF1 1 VIF1 SUPPLY VIF-PLL SOUND TRAPS 4.5 to 6.5 Mhz CVBS +5VS 20
B05A AUDIO PROCESSOR - MICRONAS
7411 MSP4450L-P2 000 Y
B05B AUDIO - CLASS D
DEMODULATOR
TUNER
7A01 TDA832BTW DACM-L 27 5A03
1A35 1 2 3 LEFT SPEAKER
15
SOUND DACM-R PROCESSOR
3A11 14
68 1411 18M432
XTALOUT 7A60 MUTEn B03 (CONTROL) 12 SUPPLY 13 39 61 SUP_D +8V SUP_A MUTE ENGAGE 3A26 5
CLASS D POWER AMPLIFIER
22 5A04
4
RIGHT SPEAKER
B06A YPBPR & SVHS
AUDIO L/R IN
1602 5 8 3623 3621 SIDE_AUDIO_IN_L SIDE_AUDIO_IN_R 48 49 SC4-IN-L SC4-IN-R B03 (CONTROL) DC_PROT
7A05÷7A07 DC-DETECTION
1615 CVI AUDIO L/R IN 5 3 3607 3611 COMP_AUDIO_IN_L COMP_AUDIO_IN_R 50 51 SC3-IN-L SC3-IN-R
62
B06A YPBPR & SVHS
B06B I0 - CINCH 1& 2
AV IN AUDIO L/R IN
1502 6 2 3512 3506 SC2_AUDIO_IN_L SC2_AUDIO_IN_R 52 53 SC2-IN-L SC2-IN-R DACA-L DACA-R 1504 6 3507 3503 SC1_AUDIO_IN_L SC1_AUDIO_IN_R 54 55 24 23 HP_AUDIO_OUT_L HP_AUDIO_OUT_R 2 6 7A51 1 7 HP_LOUT HP_ROUT B03 (CONTROL) HP_DETECT
1603 2
3 4
HEADPHONE
AV OUT AUDIO L/R OUT
SC1-IN-L SC1-IN-R ANTI_PLOP B03 (CONTROL)
2
ANTI_PLOP
B06C VGA & PC AUDIO & COMPAIR & UART
1E02 2 CVI-1 AUDIO L/R IN 1E07 2 PC / DVI AUDIO 3E23 VGA_AUDIO_IN_R 58 SC5-IN-R 3E21 VGA_AUDIO_IN_L 57 SC5-IN-L
B06D HDMI MAIN
7N17 SIL9025CTU 1N10
RXx_A
19 18
HDMI SCK MAIN WS
SD0
86 85 84
HDMI_I2S_SCK HDNI_I2S_WS HDMI_I2S_SD
17 18 20
CL3 WS3 DA-3
HDMI A 1N11
1 2
97 1N23 28M322 AUD_RST B03 (CONTROL)
19 DA-3
1 2
RXx_B
19 18
96
HDMI B
I_17910_001.eps 260608
Block Diagrams, Test Point Overview, and Waveforms
LC8.1L LA
6.
31
Block Diagram Control & Clock Signals
CONTROL & CLOCK SIGNALS
B04A TRIDENT - CX32 B04B LVDS CONNECTOR
Personal Notes:
7C04 IS42S16400D
7C02 CX32-LF 55 W1 CX_DQ(0-31) Y1 43 42 CX_MA(0-11)
7C03 7C06 CONTROL BL_ADJUST_PWM B01 SUPPLY 1C01 14M31818
SDRAM
38 7C05 IS42S16400D
1R50
TXCLKn TXCLKp 1R10 TXCLKn1 TX