Philips LC7.5E-LA Schematic

Colour Television Chassis

SUPER NOVA

LC7.5E

SUPER NOVA

Contents Page Contents Page

1. Technical Specifications, Connections, and Chassis Overview 2

2. Safety Instructions, Warnings, and Notes 6

3. Directions for Use 7

4. Mechanical Instructions 8

5. Service Modes, Error Codes, and Fault Finding 15

6. Block Diagrams, Test Point Overviews, and

Waveforms

Wiring Diagram 32” LCD (ME7) 29 Wiring Diagram 32” LCD with AmbiLight (ME7) 30 Wiring Diagram 42” LCD (ME7) 31 Wiring Diagram 42” LCD with AmbiLight (ME7) 32 Wiring Diagram 52” LCD (ME7) 33 Block Diagram Video 34 Block Diagram Audio 35 Block Diagram Control & Clock Signals 36 Testpoint Overview SSB (Bottom Side) 37-41 I2C Overview 42 Supply Lines Overview 43

7. Circuit Diagrams and PWB Layouts Diagram PWB SSB: DC / DC 3V3, VTUN, & 5V_SW (B01A) 44 67-76 SSB: DC / DC 1V2, 2V5, & 1V8 (B01B) 45 67-76 SSB: Tuner IF & Demodulator (B02) 46 67-76 SSB: DVB-Demodulator (B03A) 47 67-76 SSB: DVB-T: DVB Common Interface (B03B) 48 67-76 SSB: DVB MOJO (B03C) 49 67-76 SSB: DVB MOJO Memory (B03D) 50 67-76 SSB: DVB MOJO Analog Back End (B03E) 51 67-76 SSB: Micro Processor (B04) 52 67-76 SSB: Trident WX68 (B05A) 53 67-76 SSB: DDR & CPU Interface (B05B) 54 67-76 SSB: WX Power / Ground (B05C) 55 67-76 SSB: FPGA Interface (AL Sets only) (B05D) 56 67-76 SSB: FPGA I/O Banks (B05E) 57 67-76

Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.

SSB: Audio Processor (B06A) 58 67-76 SSB: Audio (B06B) 59 67-76 SSB: Headphone Ampl. & Muting (B06C) 60 67-76 SSB: YPBPR & SVHS (B07A) 61 67-76 SSB: I/O SCART 1&2 (B07B) 62 67-76 SSB: HDMI Main (B07C) 63 67-76 SSB: HDMI Switch (B07D) 64 67-76 SSB: LVDS Connector (B07E) 65 67-76 SSB: SRP List 66 67-76 Side I/O Panel (32”): HDMI (D) 77 79 Side I/O Panel (32”) (D) 78 79 Side I/O Panel (42” & 52”): HDMI (D) 80 82 Side I/O Panel (42” & 52”) (D) 81 82 Side I/O Panel (42” & 52”) (D) 81 82 Keyboard Control Panel (E) 83 84 Front IR / LED Panel (J) 85 86

8. Alignments 87

9. Circuit Descriptions, Abbreviation List, and IC Data Sheets 92 Abbreviation List 97 IC Data Sheets 99

10. Spare Parts List 107

11. Revision List 133

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Published by WS 0770 BU CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 17372

EN 2 LC7.5E LA1.

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 Technical Specifications

1.1.1 Vision

Display type : LCD Screen size : 32" (82 cm), 16:9

Resolution (HxV pixels) : 1366x768 (32")

Dyn. contrast ratio : 7500:1 Min. light output (cd/m Typ. response time (ms) : 8 (32")

Viewing angle (HxV degrees) : 176x176 (32")

Tuning system : PLL Presets/channels : 100 presets Tuner bands : VHF, UHF, S, H TV Colour systems : PAL B/G, D/K, I

Video playback : NTSC

Supported computer formats : 640x480

Supported video formats : 640x480i - 1fH

) : 500

: 42" (107 cm), 16:9

: 1920x1080 (42")

: 5 (42")

: 178x178 (42")

: SECAM B/G, D/K, L/L’ : DVB-T COFDM

: PAL : SECAM

: 800x600 : 1024x768 : 1280x768 : 1280x1024 : 1360x768

: 640x480p - 2fH : 720x576i - 1fH : 720x576p - 2fH : 1280x720p - 3fH : 1920x1080i - 2fH : 1920x1080p - 3fH

1.1.3 Miscellaneous

Power supply:

- Mains voltage (V

- Mains frequency (Hz) : 50 / 60

Ambient conditions:

- Temperature range (°C) : +5 to +40

- Maximum humidity : 90% R.H.

Power consumption (values are indicative)

- Normal operation (W) : ≈ 110 (32")

- Stand-by (W) : < 1

Dimensions (WxHxD cm) : 80.4x53.3x17.8 (32")

Weight (kg) : 15 (32")

) : 220 - 240

: ≈ 170 (42")

: 102.9x66.2x13.6 (42")

: 25.5 (42")

1.1.2 Sound

Sound systems : stereo, BBE Maximum power (W

) : 2 × 20

RMS

Technical Specifications, Connections, and Chassis Overview

1.2 Connection Overview

EN 3LC7.5E LA 1.

COMMON INTERFACE

TV ANTENNA

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.

1.2.1 Side Connections

EXT3: Cinch: Video CVBS - In, Audio - In

Ye -Video CVBS 1 V Wh -Audio L 0.5 V Rd - Audio R 0.5 V

/ 75 ohm jq

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

EXT3: Head phone - Out

Bk -Head phone 32 - 600 ohm / 10 mW rt

EXT3: HDMI: Digital Video, Digital Audio - In

18 2

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Figure 1-2 HDMI (type A) connector

1 -D2+ Data channel j 2 -Shield Gnd H 3 -D2- Data channel j 4 -D1+ Data channel j 5 -Shield Gnd H 6 -D1- Data channel j 7 -D0+ Data channel j 8 -Shield Gnd H 9 -D0- Data channel j 10 - CLK+ Data channel j 11 - Shield Gnd H 12 - CLK- Data channel j 13 - n.c. 14 - n.c. 15 - DDC_SCL DDC clock j 16 - DDC_SDA DDC data jk 17 - Ground Gnd H 18 - +5V j 19 - HPD Hot Plug Detect j 20 - Ground Gnd H

HDMI 2

Figure 1-1 Side and rear I/O connections

1.2.2 Rear Connections

Service Connector (ComPair)

1 -SDA-S I 2 -SCL-S I 3 -Ground Gnd H

Service Connector (UART)

1 -UART_TX Transmit k 2 -Ground Gnd H 3 -UART_RX Receive j

EXT1: Video RGB - In, CVBS - In/Out, Audio - In/Out

1 -Audio R 0.5 V 2 -Audio R 0.5 V 3 -Audio L 0.5 V 4 -Ground Audio Gnd H 5 -Ground Blue Gnd H 6 -Audio L 0.5 V 7 -Video Blue 0.7 V 8 -Function Select 0 - 2 V: INT

9 -Ground Green Gnd H 10 - Easylink P50 0 - 5 V / 4.7 kohm jk 11 - Video Green 0.7 V 12 - n.c. 13 - Ground Red Gnd H 14 - Ground P50 Gnd H 15 - Video Red 0.7 V 16 - Status/FBL 0 - 0.4 V: INT

17 - Ground Video Gnd H 18 - Ground FBL Gnd H 19 - Video CVBS 1 V 20 - Video CVBS 1 V 21 - Shield Gnd H

Pb rPY

050404

HDMI 1

S-VIDEO

C Data (0 - 5 V) jk

C Clock (0 - 5 V) j

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Figure 1-3 SCART connector

/ 1 kohm k

RMS

/ 10 kohm j

RMS

/ 1 kohm k

RMS

/ 10 kohm j

RMS

/ 75 ohm j

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j

/ 75 ohm j

1 - 3 V: EXT / 75 ohm j

/ 75 ohm k

/ 75 ohm j

AUDIO IN

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EN 4 LC7.5E LA1.

EXT2: Video YC - In, CVBS - In/Out, Audio - In/Out

Technical Specifications, Connections, and Chassis Overview

1 -Audio R 0.5 V 2 -Audio R 0.5 V 3 -Audio L 0.5 V 4 -Ground Audio Gnd H

/ 1 kohm k

RMS

/ 10 kohm j

RMS

/ 1 kohm k

RMS

5-n.c. 6 -Audio L 0.5 V 7 -C-out 0.7 V

/ 10 kohm j

RMS

/ 75 ohm k

8 -Function Select 0 - 2 V: INT

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j 9-n.c. 10 - Easylink P50 0 - 5 V / 4.7 kohm jk 11 - n.c. 12 - n.c. 13 - n.c. 14 - Ground P50 Gnd H 15 - C 0.7 V 16 - Status/FBL 0 - 0.4 V: INT

/ 75 ohm j

1 - 3 V: EXT / 75 ohm j 17 - Ground Video Gnd H 18 - Ground FBL Gnd H 19 - Video CVBS 1 V 20 - Video CVBS/Y 1 V 21 - Shield Gnd H

/ 75 ohm k

/ 75 ohm j

Common Interface

68p- See diagram B03B jk

Aerial - In

- -IEC-type (EU) Coax, 75 ohm D

HDMI1 & 2: Digital Video, Digital Audio - In

1 -D2+ Data channel j 2-Shield Gnd H 3 -D2- Data channel j 4 -D1+ Data channel j 5-Shield Gnd H 6 -D1- Data channel j 7 -D0+ Data channel j 8-Shield Gnd H 9 -D0- Data channel j 10 - CLK+ Data channel j 11 - Shield Gnd H 12 - CLK- Data channel j 13 - n.c. 14 - n.c. 15 - DDC_SCL DDC clock j 16 - DDC_SDA DDC data jk 17 - Ground Gnd H 18 - +5V j 19 - HPD Hot Plug Detect j 20 - Ground Gnd H

EXT4: Cinch: Video YPbPr - In, Audio - In

Gn - Video Y 1 V Bu -Video Pb 0.7 V Rd - Video Pr 0.7 V Wh -Audio L 0.5 V Rd -Audio R 0.5 V

/ 75 ohm jq

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

EXT4: S-Video (Hosiden): Video Y/C - In

1 -Ground Y Gnd H 2 -Ground C Gnd H 3 -Video Y 1 V 4 -Video C 0.3 V

/ 75 ohm j

P / 75 ohm j

Technical Specifications, Connections, and Chassis Overview

1.3 Chassis Overview

EN 5LC7.5E LA 1.

MAIN SUPPLY UNIT

SMALL SIGNAL

BOARD

Figure 1-4 PWB/CBA locations (32" sets)

SIDE I/O PANEL

CONTROL BOARD

LED PANEL

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MAIN SUPPLY UNIT

SMALL SIGNAL

BOARD

Figure 1-5 PWB/CBA locations (42" models)

CONTROL BOARD

LED PANEL

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EN 6 LC7.5E LA2.

Safety Instructions, Warnings, and Notes

2. Safety Instructions, Warnings, and Notes

Index of this chapter:

2.1 Safety Instructions

2.2 Warnings

2.3 Notes

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.

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.

• Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the “double-D symbol”, are trademarks of Dolby Laboratories.

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 (μ= x10 nano-farads (n= x10

• 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.

-9

), or pico-farads (p= x10

-12

-6

2.2 W arnings

• 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 Notes

2.3.1 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

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.

2.3.4 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 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

Directions for Use

MODEL :

PROD.NO:

32PF9968/10

AG 1A0617 000001

EN 7LC7.5E LA 3.

MADE IN BELGIUM

220-240V 50/60Hz

VHF+S+H+UHF

128W

BJ3.0E LA

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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 centre (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 example below it is 2006 week 17). The 6 last digits contain the serial number.

Figure 2-1 Serial number (example)

2.3.6 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 NVM content

If the processor NVM IC is replaced or initialised, the Model Number, Serial Number, and SSB Code number must be rewritten to the NVM. ComPair will foresee in a possibility to do this.

2.3.8 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

EN 8 LC7.5E LA4.

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

4.1 Cable Dressing

Notes:

• Figures below can deviate slightly from the actual situation, due to the different set executions.

• Follow the disassemble instructions in described order.

Figure 4-1 Cable dressing (32" sets)

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Mechanical Instructions

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Figure 4-2 Cable dressing (42" sets)

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Mechanical Instructions

4.2 Service Positions

For easy servicing of this set, there are a few possibilities created:

• The buffers from the packaging.

• Foam bars (created for Service).

• Aluminium service stands (created for Service).

Note: the aluminium service stands can only be used when the set is equipped with so-called “mushrooms”. Otherwise use the original stand that comes with the set.

4.2.1 Foam Bars

Required for sets

42"

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Figure 4-3 Foam bars

4.3 Assy/Panel Removal

4.3.1 Rear Cover

Warning: Disconnect the mains power cord before you remove

the rear cover.

1. Refer to next figures.

2. Place the TV set upside down on a table top, using the foam bars (see part “Service Positions”).

3. Remove rear cover screws [1] and the stand (if mounted).

4. Remove Subwoofer mounting screws [2] (if present).

5. Lift Subwoofer module, and unplug Subwoofer cable [3].

6. Unplug AmbiLight cables [4] (if present).

7. Remove rear cover.

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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.

4.2.2 Aluminium Stands

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Figure 4-5 Rear cover removal (1/3)

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Figure 4-6 Rear cover removal (2/3)

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Figure 4-4 Aluminium stands

The MkII aluminium stands with order code 3122 785 90690, can also be used to do measurements, alignments, and duration tests. The stands can be (dis)mounted quick and easy by means of sliding them in/out the "mushrooms". The stands are backwards compatible with the earlier models. Important: For (older) FTV sets without these "mushrooms", it is obligatory to use the provided screws, otherwise it is possible to damage the monitor inside!

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Figure 4-7 Rear cover removal (3/3)

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Mechanical Instructions

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4.3.2 AmbiLight Lamps (if present)

1. Refer to next figure.

2. Unplug connectors [1].

3. Remove the T10 parker screws [2].

4. Remove the unit by shifting it sidewards [3]. When defective, replace the whole unit.

Figure 4-8 AmbiLight lamps

4.3.4 Side I/O Panel

1. Refer to next figures.

2. Unplug connectors [1]. To release the flatcable connector [1b], push the two side levers and unplug the connector.

3. Remove screws [2] and remove the complete module [3].

When defective, replace the whole unit.

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Figure 4-10 Side I/O module (1/2)

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4.3.3 Keyboard Control Panel

1. Refer to next figure.

2. Unplug connector [2].

3. Remove the T10 parker screws [1].

4. Remove the unit.

5. Release clips [3] and remove the board. When defective, replace the whole unit.

Figure 4-11 Side I/O module (2/2)

4.3.5 IR/LED Panel

1. Refer to next figure.

2. Unplug connectors [1].

3. Release clip [2] and remove the board.

When defective, replace the whole unit.

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Figure 4-9 Keyboard control panel

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Figure 4-12 IR/LED panel

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4.3.6 Speakers

Unplug the speaker cables and remove the speaker.

4.3.7 Main Supply Panel

1. Unplug cables.

2. Remove the fixation screws.

3. Take the board out (it hinges at the left side). When defective, replace the whole unit.

4.3.8 Small Signal Board (SSB)

Note: Follow sequence below closely, otherwise you will have

difficulties with removing the top shielding.

1. Refer to next figures.

2. Disconnect all cables [1] on the SSB.

3. Remove the T10 tapping screws [2] that hold the SSB.

4. Remove the screws [3] that hold the connectors and the connector plate.

5. Lift the complete SSB from the set (including the shielding and connector plate).

6. Now, remove the connector plate first, by pulling it away from the connectors.

7. Then, lift the top shielding from the SSB.

Mechanical Instructions

Figure 4-13 SSB removal (1/2)

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Figure 4-14 SSB removal (2/2)

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Mechanical Instructions

EN 13LC7.5E LA 4.

4.3.9 LCD Panel

1. Refer to next figures.

2. Unplug the connectors [1] on the Main Supply Panel, the display (LVDS connector), Loudspeakers, and the LED/IR board.

3. Do NOT forget to unplug the LVDS connector from the SSB. Important: Be careful, as this is a fragile connector!

4. Remove T10 parker screws [2] on the top and bottom of the central sub-frame.

5. Remove the T20 panel fixation screws [3]. Note that the number of these screws can vary, depending on the screensize.

6. Lift he complete central sub-frame from the set [4] (incl. the PSU, SSB, and Side I/O boards and wiring).

7. After removing the sub-frame, the LCD panel can be lifted from the front cabinet.

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Figure 4-15 LCD panel (1/3)

Figure 4-16 LCD panel (2/3)

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Figure 4-17 LCD panel (3/3)

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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 position. See figure "Cable dressing".

• Pay special attention not to damage the EMC foams. Ensure that EMC foams are mounted correctly (one is located above the LVDS connector on the display, between the LCD display and the metal sub-frame).

Mechanical Instructions

Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

EN 15LC7.5E LA 5.

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

5.1 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: Colour 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) and 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 (D)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).

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: LC71 for analogue range (nonDVB), LC72 for digital range (DVB).

• 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 “Panel Code” in table “Option Codes OP1...OP7” (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.

Display Option

Code

39mm

040

PHILIPS

MODEL:

32PF9968/10

27mm

PROD.SERIAL NO: AG 1A0620 000001

(CTN Sticker)

E_06532_038.eps

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.

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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 Freq. (MHz) Defaul t syst.

Europe (except France),

475.25 PAL B/G

AP-PAL/-Multi France SECAM L NAFTA, AP-NTSC 61.25 (channel 3) NTSC M LATAM PAL M

• 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).

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.

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.

HHHHH A A A AB C D- X . Y Y ERR XX XX XX XX XX O P X X X X X X X X X X X X X X X X X X

SDM

G_16860_030.eps

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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, colour, 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”.

ress the following key sequence on the remote control

• transmitter: “062596” directly followed by the OSD/i+ button to switch to SAM (do not allow the display to time out between entries while keying the sequence).

How to Exit

Switch the set to STANDBY by pressing the mains button on the remote control transmitter or 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.

SDMSDM

H_17370_048.eps

Figure 5-2 Service jumper (SSB component side)

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.

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Service Modes, Error Codes, and Fault Finding

EN 17LC7.5E LA 5.

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.

LLLL L A AAABCD- X. YY ERR XX XX XX XX XX O P X X X X X X X X X X X X X X X X X X

C l e a r > Y e s O p t i o n s > T u n e r > R G B A l i g n > N V M E d i t o r > C o m p a i r > S W E V E N T S >

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.

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

SAM

G_16860_031.eps

260107

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 behaviour 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. W

ith 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/i+” key 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.

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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:

1 M O D E L : 3 2 P F L 7 7 6 2 D / 0 2 P R O D S / N : AG1A0712123456 3 S W I D : L C 7 5 E L 1 - 1 . x x 4 O P : X X X X X X X X X X X X X X X X X X X X X 5 C O D E S : X X X X X X X X X X 6 S S B : 3 1 39 127 12341 7 N V M : X X X X X X X X 8 F l a s h D a t a : X X . X X . X X . X X 9 D I S P L A Y : xxxx xxx xxxxx

P A G E D O W N

B y

CS M

H_17370_035a.eps

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Menu Explanation

1. MODEL. Type number, e.g. 32PFL7762D/05. (*)

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).

13. n.a.

14. HDAU. HDMI audio stream detection. “YES” means audio stream detected. “NO” means no audio stream present. Only displayed when HDMI source is selected.

15. FORMAT. Gives information about the video format of the selected transmitter (480i/480p/720p/1080i).

16. L.T. (LIFE TIMER). Operating hours indication.

17. FPGA FW. Only applicable to sets with an FPGA.

18. Reserved.

(*) If an NVM IC is replaced or initialised, 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

it CSM, use one of the following methods:

To e

• Press the MENU button twice, or POWER button on the remote control transmitter.

• Press the POWER button on the television set.

Figure 5-5 CSM menu -1- (example)

1 0 T U N E R : W E A K / G O O D / S T R O N G 1 1 S Y S T E M : P A L / N T S C / S E C A M 1 2 S O U N D : M O N O / S T E R E O / N I C A M 1 3 1 4 H D A U : Y E S / N O 1 5 F O R M A T : X X X X X X X X 1 6 L. T. : xxxxxx 1 7 F P G A F W : xx.xx.xx 1 8 : P A G E U P :

B y

Figure 5-6 CSM menu -2- (example)

CS M

H_17370_035b.eps

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Service Modes, Error Codes, and Fault Finding

5.2.5 Digital Customer Service Mode (DCSM)

Purpose

The Digital Customer Service Mode shows error codes and information on the IBO Zapper module (DVB reception part) 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 (called “Setup”).

2. Activate the “Information” sub menu (via the “down” and “right” cursor buttons).

3. In the “Information” sub menu, press the following key sequence on the remote control to activate the DCSM: “GREEN RED YELLOW 9 7 5 9” (do not allow the display to time out between entries while keying this sequence). Then, the “Service menu” will appear (see figures below).

Alternative method to activate DCSM: press key sequence “123654” on the remote control transmitter while in digital mode (do not allow the display to time out between entries while keying the sequence). Then, the “Service menu” will appear (see figures below).

Menu explanation

Figure 5-7 DCSM menu - 1

E_14970_040.eps

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EN 19LC7.5E LA 5.

E_14970_042.eps

090904

Figure 5-9 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

How to exit

Press the BLUE button on the Remote Control to exit DCSM.

resent: Indicates if CIM card is present or not.

Figure 5-8 DCSM menu - 2

E_14970_041.eps

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Service Modes, Error Codes, and Fault Finding

5.3 Service Tools

5.3.1 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 I2C SERVICE CONNECTOR

UART SERVICE

CONNECTOR

UART SERVICE

CONNECTOR

• ComPair UART interface cable: 3138 188 75051 (to be used with chassis LC7.5).

Note: If you encounter any problems, contact your local support desk.

5.3.2 LVDS Tool

Support of the LVDS Tool has been discontinued.

ComPair II

RC in

Optional

Switch

Power ModeLink/

Activity

HDMI

C only

RC out

Multi

function

ComPair II Developed by Philips Brugge

Optional power

5V DC

RS232 /UART

G_06532_036.eps

240807

Figure 5-10 ComPair II interface connection

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.

• ComPair32 CD (update): 3122 785 60160.

•ComPair I with chassis L01, A02, A10, EMX, ...).

•ComPair I

C interface cable: 3122 785 90004 (to be used

C interface extension cable: 3139 131 03791 (to be used with chassis L01, A02, A10, L04, LC4, LC7.1, LC7.2).

• ComPair UART interface cable: 3122 785 90630 (to be used with chassis LC4, EJ3, BJ2, BL2, BP2, ...).

• ComPair RS232 cable: 3104 311 12742 (to be used with chassis Q52x).

•ComPair I with chassis TPM1.xA).

•ComPair I

C adapter cable: 3122 785 90004 (to be used

C interface cable: 9965 100 07325 (to be used

with chassis LC7.5).

Service Modes, Error Codes, and Fault Finding

EN 21LC7.5E LA 5.

5.4 Error Codes

5.4.1 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 five 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.

5.4.2 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.

5.4.3 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 5-2 Error code overview

Error

code

0No error. 1 DC Protection of speakers. 2 +12V protection error. 12V missing or "low". 3 Reserved. 4 General I2C error. note 2 5 Trident Video Processor

6 I2C error while communicating

7 I2C error while communicating

8 I2C error while communicating

9 I2C error communicating with

10 SDRAM defective. 7D01 11 I2C error while communicating

12 I2C error while communicating

13 DVB HW communication

14 SDRAM defective. 7D02 15 I2C error while communicating

16 I2C error while communicating

17 I2C error while communicating

18 Reserved. (iTV) 19 Reserved. (1080p bolt-on module) 20 I2C error while communicating

21 I2C error while communicating

22 I2C error while communicating

23 Reserved.

Description Item nr. Remarks

communication error.

with the NVM.

with the Tuner.

with the IF Demodulator.

the Sound Processor.

with the HDMI IC.

with the MOJO PNX8314.

error.

with the IBO COFDM channel decoder.

with the IBO NVM.

with FPGA

with the IBO PCMCIA controller.

with the HDMI mux IC

with the HDMI buffer in Side A/ V Panel

7C01 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.

7L23 The TV will not start-up due

to critical data not available from the NVM, but the LED will blink the error code.

1101

7113

7411

7N01

7H03 if applicable

7F01,

if applicable 7K00, 7H03

7F01

7H03

7700 or external

7K00

7M07

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/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.

EN 22 LC7.5E LA5.

Service Modes, Error Codes, and Fault Finding

Note: If you exit SAM by disconnecting the mains from the television set, the error buffer is not reset.

5.5 The Blinking LED Procedure

5.5.1 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 colour.

Example (2): the content of the error buffer is “12 9 6 0 0” After entering SDM, the following occurs:

• 1 long blink of 5 seconds to start the sequence,

• 12 short blinks followed by a pause of 1.5 seconds,

• 9 short blinks followed by a pause of 1.5 seconds,

• 6 short blinks followed by a pause of 1.5 seconds,

• 1 long blink of 1.5 seconds to finish the sequence,

• The sequence starts again with 12 short blinks.

5.5.2 Displaying the Entire Error Buffer

5.6 Software Upgrading

In this chassis, three SW “stacks” are used:

• TV mains SW (processor and processor NVM).

• Digital TV SW (IBO Zapper).

5.6.1 TV Main SW Upgrade

For instructions on how to upgrade the TV Main software, refer to ComPair.

5.6.2 “Digital TV” Software Upgrade

How to Upgrade Philips “Digital TV” Software (IBO Zapper):

Preparation of the Memory Device for Software Upgrade

For the procedure you will require:

1. A personal computer with web browsing capability.

2. An archive utility that supports the ZIP-format (e.g. Winzip for Windows).

3. A CompactFlash PC Card Adapter (Type II).

4. A CompactFlash (Type I) portable memory card for insertion into the PC Card Adapter. Philips recommends using Compact Flash (CF) portable memory cards with their respective PC Card Adapters (Sandisk or Kingston) with memory sizes of up to 256MB. Philips does not guarantee that other types of portable memory cards and their respective PC Card Adapters, including multi-card PC Card Adapters work on Philips Digital TV. Note: Only FAT16-formatted portable memory is supported. NTFS & FAT32 are not supported.

Copying of Software Image Files to the Flash Device

Copy the appropriate “FCL.img” and “IBOZ.img” to the root directory of the flash device.

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.

Verifying the Current Version of the TV Software

Before you start the software upgrade procedure, it is advised to check what the current TV software is. The current TV software version can be seen in the “System software” menu.

1. First press the “A/D” key and then the “DIGITAL MENU” key on the remote controller to access the “Setup” menu.

2. Access the “Information” menu.

3. Access the “Current software version” menu.

Example:

The menu shows “IdtvZapper_HW260.256_SW2.0.24”. This means that the hardware version is “260.256” and the software version is “2.0.24”.

Figure 5-11 Current software version

G_16221_001.eps

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Service Modes, Error Codes, and Fault Finding

Software Upgrade Procedure

1. Power ON your TV with the power switch at the side of the TV. Put your TV ON by using the remote controller if the TV is in Stand-by.

2. Make sure that it is in “Digital” mode (via “A/D” button).

3. Make sure that your TV is not in Stand-by. Power OFF your TV with the power switch of the TV.

4. Remove the Conditional Access Module (if any) from the CI-slot.

5. Insert the PC Card Adapter with the portable memory card containing the software upgrade files.

6. Switch ON your TV with the power switch at the side of the TV.

7. At start-up, the TV will scan the CI slot until it finds the update content. The TV will automatically go to the upgrade mode. After a few seconds it will display the status of the upgrade procedure.

Warnings:

Do NOT remove the memory card or the PC card adapter during the software upgrade procedure. In case of a power drop during the upgrade procedure, don’t remove the portable memory from the TV. The TV will continue the upgrade as soon as the power comes back.

Example: At start-up of the TV, the current software is erased.

EN 23LC7.5E LA 5.

G_16221_005.eps

241006

Figure 5-15 Upgrade ready

When the software upgrade has been successful, switch OFF the TV, remove the PC Card Adapter, and restart the TV with the Power switch at the side of the TV. The TV will now start up with the new software.

Verifying that the Software Has Been Upgraded Successfully

Verify that the software is upgraded to the new version by following the procedure outlined in the section “Verifying the current version of the TV software”.

G_16221_002.eps

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Figure 5-12 Erasure of the software

If the erasure is successful, the programming will start.

G_16221_003.eps

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Figure 5-13 Programming of the software

Example: The programming is completed when the progress

bar reaches the 100% mark.

G_16221_004.eps

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Figure 5-14 Programming complete

The TV will reset and the screen will go blank, after a few seconds a dialogue box will occur to inform you that the current module inserted in the CI slot is not recognized. This is normal as the slot only recognizes a Conditional Access Module during normal operation.

Example: The following dialogue box will appear after the TV is upgraded successfully:

EN 24 LC7.5E LA5.

Service Modes, Error Codes, and Fault Finding

5.7 Fault Finding and Repair Tips

Notes:

• It is assumed that the components are mounted correctly with correct values and no bad solder joints.

• Before any fault finding actions, check if the correct options are set.

5.7.1 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 Dec Description

.ADR 0x000A 10 Existing value .VAL 0x0000 0 New value .Store Store?

5.7.2 Load Default NVM Values

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

Important note for DVB sets:

• When you put a DVB set into Stand-by mode with an RC, the set will go to “Semi Stand-by” mode for 5 minutes. This, to facilitate “Off the Air download” (OAD). If there is no activity within these 5 minutes, the set will switch to Standby mode. In “Semi Stand-by” mode, the LCD backlight and Audio Amplifier are turned “off” but other circuits still work as normal. The customer might think the set is in Stand-by. However, in real Stand-by mode, only the uP and the NVM are alive and all other circuits are switched “off”.

• If you press the mains switch at the local key board in a DVB set, the set will switch to Stand-by mode.

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 "Standby" 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.

On the next pages you will find start-up and shut-down flowcharts, 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.

Service Modes, Error Codes, and Fault Finding

EN 25LC7.5E LA 5.

LC07S

Start Up

Disable Audio Mute

Standby Soft Mode

(NO LED)

Port Assignment in STANDBY

Wait for Power Local Key

Notes:

---------

1. LC07S TV software only start communication with IBOZ once receive the INT message from IBOZ.

2.InitialiseHDMI MUX & Buffer IIC address( EDID,CEC)

3.RESET_n is to reset IBOZ

4. Enable Mute mean ANTI_PLOP= LOW, MUTEn=HIGH

5. Disable Mute mean ANTI_PLOP = HIGH, MUTEn=LOW

Standby Normal

Error2

[Protection]

V1.5

13 June 2007

Mode

Standby Normal Mode

(RED LED)

Disable Audio Mute

Port Assignment in STANDBY

Wait for RC key or

Wake up event

*100msfor12Vrising

Wait for 100ms

Time out = 2000ms

* 50ms for 1V2 DC-DC wait

* 50ms for Trident requirement

Wait for IBO Config

MAX 500 ms

Wait for IBO System Ready

MAX 5000 ms

Error 6 - NVM

[Protection]

Yes

AC ON

+5VSTBY&+3V3STBYAvailable

150ms

50ms

100ms

300ms

500ms

Error 7

Error 8

M16C POR by +3VSTBY

STANDBYn = LOW

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.

Last status is ON?

Yes

Read NVM completed.

STOP I²C activities.

LED = BLUE for Normal mode

LED = RED for Recording mode

BLOCK RC Key

Yes

M16C RST_H = LOW

HDMI_RST_RX_BUF=LOW

RST_AUD = LOW RESET_n = LOW

LCD_PWR_ON = LOW

SDI PDP => CTRL_DISP1 = LOW

Enable Audio Mute ( 50ms)

STANDBYn = HIGH

(Same function as CTRL-DISP3)

Wait for 100ms

Is Power Down =

(SVP_Trident) M16C RST_H to LOW

KMNPLL Latch data need 50us setup time

BL_ADJ = HIGH (100% Duty Cycle) first!!

HIGH?

Yes

Wait for 100ms

M16C RST_H = HIGH

Wait for 300ms

HDMI_RST_RX_BUF= HIGH

RST_AUD = HIGH

(IBO) RESET_n = HIGH

Enable Power Down INT

Enable DC_PROT INT

Initialise Trident WX

DPTVInit( )

Initialise Tuner

InitialiseIF Demodulator,Afric

TDA9886T

HDMI_MUX_RST

Reset (LOW =150ms) then go to HIGH

User wake up the sets

in DVB recording mode

LCD_PWR_ON= HIGH

(Same function as CTRL-DISP2)

SDI PDP => CTRL_DISP1 = LOW

20ms

2000ms to

2500ms

* BL_ADJ keep 100% for 1000ms

then reduce gradually to 70% from 1001ms to 3000ms .After 3000ms

do the dimming according to

Wait for 20 ms

Switch ON LVDS Signal

Init. Warm Component

(For software)

For LCD:

BL_ON_OFF = HIGH

picture content.

Blank Picture

Picture Mode Setup & Detection

unBlank Picture &

UnMute Audio

End

For PDP:

3000ms delay

For DVB Sets only (Semistandby) Recording mode

SDI PDP => CTRL_DISP1 = HIGH FHP PDP => CTRL_DISP4 = LOW

Recording Mode finished

SoftwareShutdown:

WP for NVM

Port Assignment in STANDBY

STANDBYn = LOW

Standby

Normal Mode

Yes

Error 9

Error 11

Error 21

Error 22

Error 3

[Protection]

Initialise Micronas

Mute Audio

Initialise HDMI Receiver, Sil 9125

Initialise HDMI Mux, Sil 9185

Initialise HDMI Buffer, Sil 9181

AmbiLight Set

InitialiseAmbiLight

Initialise FHP Panel (Provision)

*ForFHPPDPSetsonly

Initialise Bolt-ON

(100Hz, iTV, USB) TBC

Enable RC Key

DVB recording mode

Figure 5-16 Start-up flowchart

Error5 -Trident

[Protection]

Error 10 – SDRAM 7204

[Protection]

Error 14 – SDRAM 7205

[Protection]

Error 17 – AmbiLight

Error18 – iTV iFace

Error 19 – 1080P

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EN 26 LC7.5E LA5.

Service Modes, Error Codes, and Fault Finding

SEMISTANDBY/ STANDBY

300ms

20ms

Start

Mute Audio

BL_ADJ

(PWM duty cycle 70%)

BL_ON_OFF= LOW

Wait300ms

Switch OFF LVDS

Wait 20ms

LCD_PWR_ON = LOW

(ANTI_PLOP=LOW)

(MUTEn = H IGH)

LED = RED No

For DVB Sets only (Semistandby)

Wait for 3000ms

Exceptpower tact switch

SDI PDP => CTRL_DISP 1 = HIGH FHP PDP => CTRL_DISP4 = LOW

Off Air Downloading/ Recording Mode

IBOZ send shut down command

40ms

Total = 360ms

SoftwareShutdown:

Standby using

“power key”

Yes

LED = NO LED

for Standby soft mode

Disable Power Down INT &

DC_PROT_INT

BL_ADJ = LOW

(PWM duty cycle 0%)

WP for NVM

EnableAudio Mute

Port Assignment in STANDBY

STANDBYn = LOW

(ANTI_PLOP =HIGH)

(Mute_n = LOW)

Sets go to standby here

Blocking for the next start up to ensure power supply discard properly.

Waitfor 3000ms

Disable Audio Mute

End

Figure 5-17 Semi Stand-by/Stand-by flowchart

(ANTI_PLOP =HIGH)

(Mute_n = LOW)

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Service Modes, Error Codes, and Fault Finding

EN 27LC7.5E LA 5.

Power Down INT:

AC OFF or Transient INT

Avoid false trigger

End

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.

Start

Poll the Power Down

INT for 5 times

Yes

Mute Audio & VIdeo

WP forNVM

STANDBYn = LOW

Wait 5000 ms

Re-start: Start up

End

DC_PROT INT

Avoid false trigger

End

Error1

[Protection]

Figure 5-18 Power Down & DC_PROT flowchart

Start

is DC_PROT = LOW

for 3 sec?

Yes

Mute Audio & VIdeo

Log Error Code

WP for NVM

STANDBYn = LOW

End

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EN 28 LC7.5E LA5.

Personal Notes:

Service Modes, Error Codes, and Fault Finding

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Block Diagrams, Test Point Overviews, and Waveforms

6. Block Diagrams, Test Point Overviews, and Waveforms

Wiring Diagram 32” LCD (ME7)

29LC7.5E LA 6.

CN2 DISPLAY SUPPLY

1. +24VI

2. +24VI

3. +24VI

4. +24VI

5. +24VI

6. GND3

7. GND3

8. GND3

9. GND3

10. GND3

11. VBRI

12. ON/OFF

13. PWM

14. GND1

CN3 DISPLAY SUPPLY

1. +24VI

2. +24VI

3. +24VI

4. +24VI

5. +24VI

6. GND3

7. GND3

8. GND3

9. GND3

10. GND3

11. N.C.

12. N.C.

WIRING 32” LCD

14P

CN2

INVERTER

(STYLING ME7)

14P

12P

8319

MAIN SUPPLY

(1005)

CN2

CN3

CN4

ONLY USED

FOR LPL PANEL

CN5

CN6

CN7

LCD DISPLAY

(1004)

LVDS

30P

TO SUBWOOFER

IN BACK COVER

41P

1R01

(5226)

1A02

1L20

11P

1304

1A03

1A01

8304

12P

CN3

8B12

8R01

8B13

8316

SSB

(1150)

1B126P1B13

10P

1305

8305

1201

INVERTER

CN6 CONTROL:

1. -12V(audio)

2. +12V(audio)

3. GND2(audio)

4. 5.2VS

5. 5.2VS

6. 5.2VS

7. GND1

8. GND1

9. GND1

CN7 CONTROL:

1. BL-ADJUST

2. PG

3. BL_ON_OFF

4. GND1

5. BOOST

6. PSON

7. N.C.

8. +12V

RIGHT SPEAKER

(5215) (5213)

CN1

2P3

INLET

21P

TUNER

1N01

8R04

11P

SIDE I/O

(1116)

1R04

KEYBOARD CONTROL

(1114)

8308

8N01

8191

8192(UK)

LEFT SPEAKER

10P

1Q02

21P

1Q03

8M20

(5215)(5213)

1M20

IR/LED/LIGHT

SENSOR

(1112)

1M01

8M01

1M01

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Block Diagrams, Test Point Overviews, and Waveforms

Wiring Diagram 32” LCD with AmbiLight (ME7)

WIRING 32” LCD + AMBI LIGHT

CN2 DISPLAY SUPPLY

1. +24VI

2. +24VI

3. +24VI

4. +24VI

5. +24VI

6. GND3

7. GND3

8. GND3

9. GND3

10. GND3

11. VBRI

12. ON/OFF

13. PWM

14. GND1

CN3 DISPLAY SUPPLY

1. +24VI

2. +24VI

3. +24VI

4. +24VI

5. +24VI

6. GND3

7. GND3

8. GND3

9. GND3

10. GND3

11. N.C.

12. N.C.

CN6 CONTROL:

1. -12V(audio)

2. +12V(audio)

3. GND2(audio)

4. 5.2VS

5. 5.2VS

6. 5.2VS

7. GND1

8. GND1

9. GND1

4P7

1M09

1M59

1M82

8319

14P

CN2

INVERTER

(IN BACK COVER)

AMBI-LIGHT UNIT

(STYLING ME7)

8M09 8M09

8116

CN5

CN4

CN6

14P

CN2

CN7

12P

CN3

MAIN SUPPLY

(1005)

ONLY USED

FOR LPL PANEL

2P3

CN1

8B12

8B13

8316

30LC7.5E LA 6.

LCD DISPLAY

1B126P1B13

SSB

(1150)

(1004)

LVDS

30P

10P

1305

1201

TUNER

8R01

8305

41P

1R01

TO SUBWOOFER

IN BACK COVER

(5226)

1L20

1A02

8M59

11P

1304

1A03

1A01

1N01

8304

21P

8M82

8R04

12P

CN3

INVERTER

SIDE I/O

(1116)

11P

1R04

(IN BACK COVER)

AMBI-LIGHT UNIT

4P7

1M82

1M59

1M09

(1114)

KEYBOARD CONTROL

CN7 CONTROL:

1. BL-ADJUST

2. PG

3. BL_ON_OFF

4. GND1

5. BOOST

6. PSON

7. N.C.

8. +12V

RIGHT SPEAKER

(5215) (5213)

INLET

8308

8N01

8191

8192(UK)

LEFT SPEAKER

10P

1Q02

21P

1Q03

8M20

(5215)(5213)

1M20

IR/LED/LIGHT

SENSOR

(1112)

H_17371_002.eps

1M01

8M01

1M01

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