Philips Q528.1A Schematic

Colour Television Chassis

AUREA

ME7

Q528.1A

AUREA

ME7

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 25

6. Block Diagrams, Test Point Overview, and

Waveforms

Wiring Diagram 32” LCD 49 Wiring Diagram 42” LCD 50 Wiring Diagram 47” 51 Wiring Diagram 42” (AUREA) 52 Block Diagram Supply 32” 53 Block Diagram Supply 37” - 42” 54 Block Diagram Supply 47” 55 Block Diagram Supply Audio & AmbiLight 56 Block Diagram Video 57 Block Diagram Audio 58 Block Diagram Control & Clock Signals 59 Testpoint Overview Small Signal Board 60-65 I2C IC Overview 66 Supply Lines Overview 67

7. Circuit Diagrams and PWB Layouts Drawing PWB Display Supply (32”): Part 1 (A1) 68 70-71 Display Supply (32”): Part 2 (A2) 69 70-71 Display Supply (42”): Mains Filter & Standby(A1)72 75-76 Display Supply (42”): Supply (A2) 73 75-76 Display Supply (42”): DC - DC (A3) 74 75-76 DFI Panel: DC - DC (AB1) 77 87-88 DFI Panel: Video Flow (AB2) 78 87-88 DFI Panel: Clock (AB3) 79 87-88 DFI Panel: Supply (AB4) 80 87-88 DFI Panel: FPGA: Power & Control (AB5) 81 87-88 DFI Panel: FPGA: DFI (AB6) 82 87-88

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.

DFI Panel: DDR A (AB7) 83 87-88 DFI Panel: DDR B (AB8) 84 87-88 DFI Panel: Display Interfacing (AB9) 85 87-88 DFI Panel: FPGA Ambilight (AB10) 86 87-88 AmbiLight Panel (5 LED) (AL1) 89 91 AmbiLight Panel (5 LED) (AL2) 90 91 AmbiLight Panel (3 Side 4 LED) (AL1) 92 94 AmbiLight Panel (3 Side 4 LED) (AL2) 93 94 Audio & AL Supply Panel: Supply (AP1) 95 100-101 Audio & AL Supply Panel: Audio (AP2A) 96 100-101 Audio & AL Supply Panel: Protection (AP2B) 97 100-101 Audio & AL Supply Panel: Subwoofer (AP2C) 98 100-101 Audio & AL Supply Panel: Centre Input (AP2D) 99 100-101 Small Signal Board (B1-B11) 102-143 147-152 SSB: SRP List 144-146 Side I/O Panel (D) 153 154 Keyboard Control Panel (E) 155 156 Front IR / LED Panel (J) 158 159

8. Alignments 161

9. Circuit Descriptions, Abbreviation List, and IC Data Sheets 164 Abbreviation List 185 IC Data Sheets 188

10. Spare Parts and Diversity List 197

11. Revision List 215

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Published by EL 0770 BU CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 16791

EN 2 Q528.1A LA1.

Technical Specifications, Connections, and Chassis Overview

1. Technical Specifications, Connections, and Chassis Overview

Index of this chapter:

1.1 Technical Specifications

1.2 Connections

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

: 42" (107 cm), 16:9 : 47" (120 cm), 16:9

Resolution (H × V pixels) : 1366 × 768p (32")

: 1920 × 1080p (42")

Light output (cd/m Viewing angle (H × V degrees) : 176 × 176 Tuning system : PLL Colour systems : PAL B/G

Video playback : NTSC

Tuner bands : UHF, VHF, S, Hyper Supported video formats : 480i @ 60 Hz

Supported computer formats (60 Hz) : 640 × 480

) : 550

: 1920 × 1080p (47")

: PAL I : SECAM B/G : SECAM D/K

: PAL : SECAM

: 480p @ 60 Hz : 576i @ 50 Hz : 576p @ 50 Hz : 720p @ 50/60 Hz : 1080i @ 50/60 Hz : 1080p @ 24/25/30/

50/60 Hz

: 800 × 600 : 1024 × 768 : 1280 × 1024 : 1360 × 768 : 1920 × 1080i : 1920 × 1080p

1.1.3 Multimedia

Supported file formats : JPEG

USB input : USB2.0

1.1.4 Miscellaneous

Power supply:

- Mains voltage (V

- Mains frequency (Hz) : 50 / 60

Ambient conditions:

- Temperature range (°C) : +5 to +35

Power consumption (values are indicative)

- Normal operation (W) : 132 (32")

- Standby (W) : 0.8

Dimensions (W × H × D in mm) : 805 × 547 × 115 (32")

Weight (kg) : 14.3 (32")

) : 220 - 240 ±10%

:MP3 : Slideshow (.alb)

: 232 (42") : 275 (47")

: 1046 × 686 × 116

(42")

: 1121 × 715 × 129

(42PFL9900)

: 1157 × 752 × 117

(47")

: 26.1 (42") : 36.8 (42PFL9900) : 32.0 (47")

1.1.2 Sound

Maximum power (W

):2 × 8

RMS

:2 × 12 (42PFL9900)

Technical Specifications, Connections, and Chassis Overview

1.2 Connections

EN 3Q528.1A LA 1.

Rear connectors

MONITOR OUT

DISPLAY SYNCHRONIZED

AUDIOVIDEO

DIGITAL AUDIO

DISPLAY SYNC.

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, Ye= Yellow.

1.2.1 Side Connections

USB2.0

1234

Figure 1-2 USB (type A)

1-+5V k 2 -Data (-) jk 3 -Data (+) jk 4 -Ground Gnd H

Headphone (Output)

Bk -Headphone 32 - 600 ohm / 10 mW ot

Cinch: Video CVBS - In, Audio - In

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

ANALOG AUDIO IN

VGA / HDMI 1 / HDMI 2

OUT

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/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

/ 75 ohm jq

SERVICE

UART

Figure 1-1 Connection overview

HDMI 1, 2 & 3: 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

AV 3

AUDIO

S VIDEO

AV 1

YPbPr

VIDEO L RAUDIO

AV 2

VIDEO

Pb Pr

18 2

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AUDIOLR

250505

Figure 1-3 HDMI (type A) connector

Side

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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

1.2.2 Rear Connections

Monitor Out: Cinch: Video CVBS - Out, Audio - Out

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

/ 75 ohm kq

/ 10 kohm kq

RMS

/ 10 kohm kq

RMS

Digital Audio In: Cinch: S/PDIF - In

Bk -Coaxial 0.2 - 0.6V

/ 75 ohm jq

Digital Audio Out: Cinch: S/PDIF - Out

Bk -Coaxial 0.4 - 0.6V

/ 75 ohm kq

Cinch: Audio - In

Rd -Audio - R 0.5 V Wh - Audio - L 0.5 V

/ 10 kohm kq

RMS

/ 10 kohm kq

RMS

Service Connector (UART): Jack 3.5 mm

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

Aerial - In

- - F-type (US) Coax, 75 ohm D

AV3: Cinch: Audio - In

Rd -Audio - R 0.5 V Wh -Audio - L 0.5 V

/ 10 kohm kq

RMS

/ 10 kohm kq

RMS

AV3: Cinch: Video YPbPr - In

Gn -Video Y 1 V Bu - Video Pb 0.7 V Rd -Video Pr 0.7 V

/ 75 ohm jq

AV2: Cinch: Video CVBS - In, Audio - In

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

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

/ 75 ohm jq

EN 4 Q528.1A LA1.

Technical Specifications, Connections, and Chassis Overview

AV1: 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

AV1: Cinch: Video CVBS - In, Audio - In

Rd -Audio R 0.5 V

/ 75 ohm j

/ 10 kohm jq

RMS

1.3 Chassis Overview

DISPLAY

SUPPLY PANEL

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

AV1: Cinch: Video YPbPr - In

Gn -Video Y 1 V Bu - Video Pb 0.7 V Rd -Video Pr 0.7 V

/ 10 kohm jq

RMS

/ 75 ohm jq

SIDE I/O PANEL

KEYBOARD CONTROL

PANEL

SMALL SIGNAL

BOARD

DISPLAY

SUPPLY PANEL

SMALL SIGNAL

BOARD

Figure 1-4 PWB/CBA locations 32" sets

IR & LED PANEL

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DFI PANEL

SIDE I/O PANEL

KEYBOARD CONTROL

PANEL

IR & LED PANEL

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Figure 1-5 PWB/CBA locations 42" ME7 styling sets

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SMALL SIGNAL

BOARD

Technical Specifications, Connections, and Chassis Overview

DFI PANEL

EN 5Q528.1A LA 1.

DISPLAY SUPPLY

PANEL

KEYBOARD CONTROL

PANEL

IR & LED PANEL

DISPLAY

SUPPLY PANEL

Figure 1-6 PWB/CBA locations 42" Aurea styling sets

STANDBY/AUDIO

PANEL

SIDE I/O PANEL

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DFI PANEL

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SMALL SIGNAL

BOARD

Figure 1-7 PWB/CBA locations 47" sets

SIDE I/O PANEL

KEYBOARD CONTROL

PANEL

IR & LED PANEL

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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.

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 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 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= × 10 nano-farads (n= × 10

• 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 log-in, 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.

2.3.4 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

-9

), or pico-farads (p= × 10

-12

-6

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

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.

Directions for Use

MODEL :

PROD.NO:

32PF9968/10

AG 1A0617 000001

220-240V 50/60Hz

VHF+S+H+UHF

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 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.

EN 7Q528.1A LA 3.

MADE IN BELGIUM

128W

BJ3.0E LA

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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 Q528.1A LA4.

Mechanical Instructions

4. Mechanical Instructions

Index of this chapter:

4.1 Cable Dressing

4.2 Service Positions

4.3 Assy/Panel Removal ME7 styling

4.5 Set Re-assembly

Notes:

4.1 Cable Dressing

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

• Follow the disassemble instructions in described order. They apply to the 47" sets. The disassemble instructions for the Aurea sets (42PFL9900/98) is described in section “Assy/Panel Removal Aurea Styling”.

Figure 4-1 Cable dressing 32" sets

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Mechanical Instructions

EN 9Q528.1A LA 4.

Figure 4-2 Cable dressing 42” ME7 styling sets

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Figure 4-3 Cable dressing 42" Aurea styling sets

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EN 10 Q528.1A LA4.

Mechanical Instructions

4.2 Service Positions

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

• The buffers from the packaging (see figure “Rear cover”).

• Foam bars (created for Service).

• Aluminium service stands (created for Service).

4.2.1 Foam Bars

Required for sets

42"

Figure 4-4 Cable dressing 47" sets

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 Foam bars

171106

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Figure 4-6 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.

Mechanical Instructions

EN 11Q528.1A LA 4.

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!

4.3 Assy/Panel Removal ME7 styling

4.3.1 Rear Cover

Warning: Disconnect the mains power cord before you remove

the rear cover.

2 2 2

Warning: Most sets have additional doors located in the rear

cover. These are meant for disconnecting the flat cables to the AmbiLight units in the rear cover, before the rear cover is lifted from the set. The additional doors are not always located at the same place for all sets, therefore the figures below are only meant as indication. It is mandatory to locate these additional doors first, open them, and unplug connectors behind. Lifting the rear cover without having done this, will result in damaging connectors inside! Refer to next figures for details.

2 2 2

1. Remove the stand.

2. Remove the mushrooms [1].

3. Remove the screws [2].

4. Open the doors [3] on the back cover.

Refer to figures “Door Removal” for details.

Figure 4-7 Rear Cover Removal

1. Unplug connectors necessary for removing the backcover.

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Figure 4-9 Door Removal -2-

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Figure 4-8 Door Removal -1-

1. Unplug connector [4].

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4.3.2 Side I/O Board

Refer to figure “Side I/O Board” for details.

1. Unplug connectors [1].

2. Remove screw [2].

3. Push brackets [3], lift the PWB and slide it to the left out of its casing.

When defective, replace the whole unit.

Mechanical Instructions

Figure 4-10 Side I/O Board

4.3.3 Keyboard Control Board

Refer to figures “Keyboard Control Board -1-” and “Keyboard Control Board -2-” for details.

1. Remove the screws [1].

2. Lift the clamps [2].

3. Take the PWB out of its casing.

4. Unplug the connector [3] and remove the board.

When defective, replace the whole unit.

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Figure 4-12 Keyboard Control Board -2-

4.3.4 IR & LED Board

Refer to figure “IR & LED Board” for details.

1. Release clip [1], lift the board and take it out.

2. Unplug connector [2]. When defective, replace the whole unit.

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Figure 4-11 Keyboard Control Board -1-

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Figure 4-13 IR & LED Board

4.3.5 Speakers

Refer to figure “Speakers” for details.

1. Unplug connectors [1].

2. Remove screws [2].

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Mechanical Instructions

During re-assembly, refer to figure “Cable dressing 47" sets” earlier in this chapter for the correct cable dressing!

EN 13Q528.1A LA 4.

Figure 4-14 Speakers

4.3.6 Display Supply Panel - 42" sets

Refer to figure “Display Supply Panel - 42" sets” for details.

1. Remove the fixation screws [1].

2. Unplug connectors [2].

3. Take the board out. During re-assembly, refer to figure “Cable dressing 42" sets” earlier in this chapter for the correct cable dressing!

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Figure 4-15 Display Supply Panel - 42" sets

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Figure 4-16 Display Supply Panel - 47"sets

4.3.8 Dynamic Frame Insertion panel (DFI)

Refer to next figures for details.

1. Unplug the LVDS connectors [1]. Caution: be careful, as these are very fragile connectors!

2. Unplug the other connectors [2].

3. Remove the screws [3].

The DFI panel can now be taken out of the set.

4.3.7 Display Supply Panel - 47" and 52" sets

Refer to figure “Display Supply Panel - 47" sets” for details.

1. Remove the fixation screws [1].

2. Unplug connectors [2].

3. Take the board out.

Figure 4-17 DFI panel removal

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Mechanical Instructions

4.3.9 Small Signal Board (SSB)

Caution: it is mandatory to remount all different screws at their

original position during re-assembly. Failure to do so may result in damaging the SSB.

Refer to figures “Small Signal Board -1-” and “Small Signal Board -2-” for details.

1. Remove the tapping screws [1].

2. Unplug the connectors [2].

3. Unplug the LVDS connector [3]. Caution: be careful, as this is a very fragile connector!

4. Remove the parker screws [4].

5. Remove the tapping screws [5].

6. Carefully lift the SSB at the top and take it out of the set.

4.3.10 AmbiLight Unit

The AmbiLight Units are located in the back cover. Refer to figure “AmbiLight Unit” for details.

1. Remove the screws [1].

2. Unplug the connectors [2].

3. Slide the unit sideways and take it out of the backcover.

When defective, replace the whole unit.

Figure 4-18 Small Signal Board -1-

4 4 4 5 5

Figure 4-19 Small Signal Board -2-

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Figure 4-20 AmbiLight Unit

4.3.11 LCD Panel

Refer to figures “LCD Panel -1-” and “LCD Panel -2-” for details.

1. Remove the vertical brackets [1] by removing the screws [2].

1. Unplug the connectors [3].

2. Unplug the LVDS connector [4] from the LCD panel. Important: Be careful, as this is a very fragile connector!

3. Unplug the connectors [5] from the speakers.

4. Remove fixation screw [6] from the side I/O panel.

5. Unplug connector from LED I/R panel as earlier described [7].

6. Remove fixation screws [8] and lift the complete central sub-frame [6] from the set.

7. Lift the central sub-frame from the set. Refer to figure Central Sub-frame lift for details.

8. Lift the LCD panel from the front cabinet.

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Mechanical Instructions

EN 15Q528.1A LA 4.

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Figure 4-21 LCD Panel -1-

3 3

8 8 8

Figure 4-22 LCD Panel -2-

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Mechanical Instructions

Figure 4-23 Central Sub-frame

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Mechanical Instructions

EN 17Q528.1A LA 4.

4.4 Assy/Panel Removal Aurea Styling

Note: Pictures in this section are taken from European chassis

(only difference: use of another Small Signal Board).

4.4.1 Rear Cover

Warning: Disconnect the mains power cord before you remove

the rear cover. Note: it is not necessary to remove the stand while removing the rear cover.

Refer to next figures for details.

2 22

2 2

1. Place the TV set upside down on a table top, using the foam bars (see part “Foam Bars”). Caution: do not put pressure on the display, but let the monitor lean on the cabinet!

2. Remove the mushrooms [1].

3. Remove the screws [2].

4. Lift the rear cover from the TV.

4.4.2 Side I/O Board

Refer to next figure for details.

1. Unplug both connectors [1] and remove the screw [2].

2. Lift out the whole unit.

When defective, replace the whole unit.

Figure 4-24 Rear Cover Removal

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Figure 4-25 Side I/O Board

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4.4.3 Stand Removal

Refer to next figures for details.

1. Place the set in the service position.

2. Remove the screws [1] and pull the stand downwards out of its support.

3. Remove the screws [2] and lift out the support.

Mechanical Instructions

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Figure 4-26 Stand removal [1/2]

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Figure 4-27 Stand removal [1/2]

4.4.4 Ambilight Reflector and Low-range Speaker removal

Caution: The speakers should never be connected or

disconnected when the set is playing! This can damage the amplifiers on the SSB. Refer to next figure for details.

1. Remove the screws[1].

2. Lift the whole reflector from the set.

3. Remove the connectors [2] from the low-range speakers.

4. Remove the screws [3] from the low-range speakers and lift them from the sub-frame. When defective, replace the whole unit.

Figure 4-28 Ambilight Reflector and Low-range Speaker removal

2 2

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Mechanical Instructions

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4.4.5 Ambilight LED Panel Removal

The set contains two different Ambilight LED panels. A four LED and a five LED version. Removal is similar for both types.

Refer to next figure for details.

1. Unplug the connectors [1].

2. Remove the screws [2] and [3].

3. Pull the panel forward and lift them from the sub-frame. When defective, replace the whole unit.

Figure 4-29 Ambilight LED panel removal

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Mechanical Instructions

4.4.6 Subframe Removal

Before the Subframe can be removed, please remove the Ambilight Reflector and Low-range Speaker as described earlier. For replacing the Keyboard Control Board, the IR & LED board, the Tweeters, and the LCD panel, the Subframe and Rim have to be removed first.

Refer to next figure for details.

1. Do NOT forget to unplug the LVDS connector [1] from the SSB. Important: Be careful, as this is a very fragile connector!

2. Unplug the connectors[2].

3. Remove the screws [3] and [4].

4. Now lift the subframe from the set.

3 3

Figure 4-30 Subframe removal

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Mechanical Instructions

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4.4.7 Rim removal

For replacing the Keyboard Control Board, the IR & LED board, the Tweeters and the LCD panel, the Subframe and Rim have to be removed first. Refer to next figure for details.

1. Remove the screws [1].

2. Lift the rim from the set.

4.4.8 IR & LED Board

For replacing the IR & LED Board, the Subframe and the Rim have to be removed first. Please refer to the sections Subframe removal and Rim removal. Refer to next figure for details.

1. Unplug connectors [1].

2. Remove the screws [2].

3. Lift the board and take it out of the set. When defective, replace the whole unit.

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Figure 4-31 Rim removal

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Figure 4-32 IR & LED Board

4.4.9 Keyboard Control Board

For replacing the Keyboard Control Board, the Subframe and the Rim have to be removed first. Please refer to the sections Subframe removal and Rim removal. Refer to next figure for details.

1. Remove the screws [1].

2. Lift the unit from the set in the shown direction.

3. Unplug the connector and remove the board.

4. Lift the clamps [2].

Figure 4-33 Keyboard Control Board

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4.4.10 Tweeters removal

Caution: The tweeters should never be connected or

disconnected when the set is playing! This can damage the amplifiers on the Audio/Standby Board. For replacing the IR & LED Board, the Subframe and the Rim have to be removed first. Please refer to the sections Subframe removal and Rim removal. Refer to next figure for details.

1. Unplug connector [1].

2. Remove screws [2].

3. Take the tweeters out together with their casing. When defective, replace the whole unit.

Mechanical Instructions

4.4.11 LCD Panel

For replacing the LCD Panel, the Subframe has to be removed first. Please refer to the section Subframe removal. Refer to next figure for details.

Figure 4-34 Tweeters removal

1. Lift the LCD panel from the front cabinet.

When defective, replace the whole unit.

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4.4.12 Small Signal Board (SSB)

Caution: it is mandatory to remount all different screws at their

Figure 4-35 LCD Panel

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original position during re-assembly. Failure to do so may result in damaging the SSB. Refer to next figures for details.

1. Unplug the LVDS connector [1]. Caution: be careful, as this is a very fragile connector!

2. Unplug the connectors [2].

3. Remove the screws [3].

4. Remove the parker screws [4].

5. Remove the tapping screws [5].

The SSB can now be taken out of the set.

1 2

Mechanical Instructions

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Figure 4-36 Small Signal Board removal [1/2]

Figure 4-37 Small Signal Board removal [2/2]

4.4.13 Power Supply Unit (PSU)

Refer to next figure for details.

1. Unplug the connectors [1].

2. Remove the screws [2].

The PSU can now be taken out of the set.

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Figure 4-38 PSU panel removal

4.4.14 Dynamic Frame Insertion panel (DFI)

Refer to next figures for details.

1. Unplug the LVDS connectors [1]. Caution: be careful, as these are very fragile connectors!

2. Unplug the other connectors [2].

3. Remove the screws [3].

The DFI panel can now be taken out of the set.

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Figure 4-39 DFI panel removal

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4.4.15 Audio and Ambilight supply panel

Refer to next figures for details.

1. Unplug the connectors [1].

2. Remove the screws [2]. The Audio and Ambilight supply panel can now be taken out of the set.

Mechanical Instructions

Figure 4-40 Audio and Ambilight supply panel removal

4.5 Set Re-assembly

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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. Only refer to

figures “Cable dressing” at the beginning of this chapter!

• Pay special attention not to damage the EMC foams on the SSB shields. Ensure that EMC foams are mounted correctly.

Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

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Index of this chapter:

5.1 Test Points

5.2 Service Modes

5.3 Stepwise Start-up

5.4 Service Tools

5.5 Error Codes

5.6 The Blinking LED Procedure

5.7 Protections

5.8 Fault Finding and Repair Tips

5.9 Software Upgrading

5.1 Test Points

As most signals are digital, it will be difficult to measure waveforms with a standard oscilloscope. However, several key ICs are capable of generating test patterns, which can be controlled via ComPair. In this way it is possible to determine which part is defective.

Perform measurements under the following conditions:

• Service Default Mode.

• Video: Colour bar signal.

• Audio: 3 kHz left, 1 kHz right.

5.2 Service Modes

Service Default mode (SDM) and Service Alignment Mode (SAM) offers several features for the service technician, while the Customer Service Mode (CSM) is used for communication between the call centre and the customer.

This chassis also offers the option of using ComPair, a hardware interface between a computer and the TV chassis. It offers the abilities of structured troubleshooting, error code reading, and software version read-out for all chassis. (see also paragraph “ComPair”).

– Picture mute (blue mute or black mute). – Automatic volume levelling (AVL). – Skip/blank of non-favourite pre-sets.

How to Activate SDM

For this chassis there are two kinds of SDM: an analogue SDM and a digital SDM. Tuning will happen according table “SDM Default Settings”.

• Analogue SDM: use the standard RC-transmitter and key in the code “062596”, directly followed by the “MENU” button. Note: It is possible that, together with the SDM, the main menu will appear. To switch it “off”, push the “MENU” button again.

• Digital SDM: use the standard RC-transmitter and key in the code “062593”, directly followed by the “MENU” button. Note: It is possible that, together with the SDM, the main menu will appear. To switch it “off”, push the “MENU” button again.

• Analogue SDM can also be activated by shorting for a moment the two solder pads [1] (see figure “Service mode pads”) on the SSB, with the indication “SDM”. Activation can be performed in all modes, except when the set has a problem with the Stand-by Processor.

5.2.1 Service Default Mode (SDM)

Purpose

• To create a pre-defined setting, to get the same measurement results as given in this manual.

• To override SW protections detected by stand-by processor and make the TV start up to the step just before protection (a sort of automatic stepwise start up). See paragraph “Stepwise Start Up”.

• To override SW protections detected by MIPS. See also paragraph “Error codes”.

• To start the blinking LED procedure (not valid for protections detected by standby software).

Specifications

Table 5-1 SDM default settings

Region Freq. (MHz)

Europe, AP(PAL/Multi) 475.25 PAL B/G Europe, AP DVB-T 546.00 PID

Video: 0B 06 PID

0B 06 PID

PCR: Audio: 0B 07

• All picture settings at 50% (brightness, colour, contrast).

• All sound settings at 50%, except volume at 25%.

• All service-unfriendly modes (if present) are disabled, like: – (Sleep) timer. – Child/parental lock.

Default system

DVB-T

Figure 5-1 Service mode pads

After activating this mode, “SDM” will appear in the upper right corner of the screen (if you have picture).

How to Navigate

When you press the “MENU” button on the RC transmitter, the set will toggle between the SDM and the normal user menu (with the SDM mode still active in the background).

How to Exit SDM

Use one of the following methods:

• Switch the set to STAND-BY via the RC-transmitter.

• Via a standard customer RC-transmitter: key in “00”sequence.

5.2.2 Service Alignment Mode (SAM)

Purpose

• To perform (software) alignments.

• To change option settings.

• To easily identify the used software version.

• To view operation hours.

• To display (or clear) the error code buffer.

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Service Modes, Error Codes, and Fault Finding

How to Activate SAM

Via a standard RC transmitter: key in the code “062596” directly followed by the “INFO” button. After activating SAM with this method a service warning will appear on the screen, you can continue by pressing the red button on the RC.

Contents of SAM:

• Hardware Info. – A. SW Version. Displays the software version of the

main software (example: Q581E-1.2.3.4 = AAAAB_X.Y.W.Z).

• AAAA= the chassis name.

• B= the region: A= AP, E= EU, L= LatAm, U = US. For AP sets it is possible that the Europe software version is used.

• X.Y.W.Z= the software version, where X is the main version number (different numbers are not compatible with one another) and Y.W.Z is the sub version number (a higher number is always compatible with a lower number).

– B. SBY PROC Version. Displays the software version

of the stand-by processor.

– C. Production Code. Displays the production code of

the TV, this is the serial number as printed on the back of the TV set. Note that if an NVM is replaced or is initialized after corruption, this production code has to be re-written to NVM. ComPair will foresee in a possibility to do this.

• Operation Hours. Displays the accumulated total of operation hours (not the stand-by hours). Every time the TV is switched “on/off”, 0.5 hours is added to this number.

• Errors (followed by maximal 10 errors). The most recent error is displayed at the upper left (for an error explanation see paragraph “Error Codes”).

• Reset Error Buffer. When you press “cursor right” (or the “OK button) and then the “OK” button, the error buffer is reset.

• Alignments. This will activate the “ALIGNMENTS” submenu.

• Dealer Options. Extra features for the dealers.

• Options. Extra features for Service. For more info regarding option codes, see chapter 8 “Alignments”. Note that if you change the option code numbers, you have to confirm your changes with the “OK” button before you store the options. Otherwise you will loose your changes.

• Initialize NVM. The moment the processor recognizes a corrupted NVM, the “initialize NVM” line will be highlighted. Now, you can do two things (dependent of the service instructions at that moment): – Save the content of the NVM via ComPair for

development analysis, before initializing. This will give the Service department an extra possibility for diagnosis (e.g. when Development asks for this).

– Initialize the NVM.

Note: When you have a corrupted NVM, or you have replaced the NVM, there is a high possibility that you will not have picture anymore because your display code is not correct. So, before you can initialize your NVM via the SAM, you need to have a picture and therefore you need the correct display option. Refer to chapter 8 for details. To adapt this option, you can use ComPair (the correct HEX values for the options can be found in chapter 8 “Alignments”) or a method via a standard RC (described below). Changing the display option via a standard RC: Key in the code “062598” directly followed by the “MENU” button and “XXX”, where XXX is the 3 digit decimal display code (see table “Option code overview” in chapter 8 “Alignments”, or sticker on the side/bottom of the cabinet). Make sure to key in all three digits, also the leading zero’s. If the above action is successfu the front LED will go out as an indication that the RC sequence was correct. After the display option is changed in the NVM, the TV will go to the Stand-by mode. If the NVM was corrupted or

empty before this action, it will be initialized first (loaded with default values). This initializing can take up to 20 seconds.

Display Option

Code

39mm

040

PHILIPS

MODEL:

32PF9968/10

27mm

PROD.SERIAL NO: AG 1A0620 000001

(CTN Sticker)

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Figure 5-2 Location of Display Option Code sticker

Restore the correct Lava/Lounge mode (only for Aurea):

These settings are done automatically when the NVM is initialized (and loaded with default values).

• Store. All options and alignments are stored when pressing “cursor right” (or the “OK” button) and then the “OK”-button.

• SW Maintenance. – SW Events. Not useful for Service purposes. In case

of specific software problems, the development department can ask for this info.

– HW Events. Not useful for Service purposes. In case

of specific software problems, the development department can ask for this info.

• Test settings. For development purposes only.

• Upload to USB. To upload several settings from the TV to a USB stick, which is connected to the Side I/O. The items are “Channel list”, “Personal settings”, “Option codes”, “Display-related alignments” and “History list”. First you have to create a directory “repair” in the root of the USB stick.To upload the settings you have to select each item separately, press “cursor right” (or the “OK button), confirm with “OK” and wait until “Done” appears. In case the download to the USB stick was not successful “Failure” will appear. In this case, check if the USB stick is connected properly and if the directory “repair” is present in the root of the USB stick. Now the settings are stored onto your USB stick and can be used to download onto another TV or other SSB. Uploading is of course only possible if the software is running and if you have a picture. This method is created to be able to save the customer’s TV settings and to store them into another SSB.

• Download from USB. To download several settings from the USB stick to the TV. Same way of working as with uploading. To make sure that the download of the channel list from USB to the TV is executed properly, it is necessary to restart the TV and tune to a valid preset if necessary. Note: The “History list item” can not be downloaded from USB to the TV. This is a “read-only” item. In case of specific problems, the development department can ask for this info.

How to Navigate

• In SAM, you can select the menu items with the “CURSOR UP/DOWN” key on the RC-transmitter. The selected item will be highlighted. When not all menu items fit on the screen, move the “CURSOR UP/DOWN” key to display the next/previous menu items.

• With the “CURSOR LEFT/RIGHT” keys, it is possible to: – (De) activate the selected menu item. – (De) activate the selected sub menu.

• With the “OK” key, it is possible to activate the selected action.

How to Exit SAM

Use one of the following methods:

• Press the “MENU” button on the RC-transmitter.

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• Switch the set to STAND-BY via the RC-transmitter.

5.2.3 Customer Service Mode (CSM)

Purpose

When a customer is having problems with his TV-set, he can call his dealer or the Customer Helpdesk. The service technician can then ask the customer to activate the CSM, in order to identify the status of the set. Now, the service technician can judge the severity of the complaint. In many cases, he can advise the customer how to solve the problem, or he can decide if it is necessary to visit the customer. The CSM is a read only mode; therefore, modifications in this mode are not possible. When in this chassis CSM is activated, a colour bar test pattern will be visible for 5 seconds. This test pattern is generated by the Pacific3. So if you see this test pattern you can determine that the back end video chain (Pacific3, LVDS, and display) of the SSB is working. In case of a set with DFI panel, an extra test picture is generated. So you will see the Pacific3 test picture for 3 seconds and then the DFI EPLD test picture for another 3 seconds. With this extra test picture you can determine if the DFI board is working properly. Also new in this chassis: when you activate CSM and there is a USB stick connected to the TV, the software will dump the complete CSM content to the USB stick. The file (Csm.txt) will be saved in the root of your USB stick. This info can be handy if you do not have picture.

Another new item in this chassis is when CSM is activated, the complete error-buffer content will be shown via the blinking LED procedure.

How to Activate CSM

Key in the code “123654” via the standard RC transmitter.

Note: Activation of the CSM is only possible if there is no (user) menu on the screen!

How to Navigate

By means of the “CURSOR-DOWN/UP” knob on the RCtransmitter, you can navigate through the menus.

Contents of CSM

• Set Type. This information is very helpful for a helpdesk/ workshop as reference for further diagnosis. In this way, it is not necessary for the customer to look at the rear of the TV-set. Note that if an NVM is replaced or is initialized after corruption, this set type has to be re-written to NVM. ComPair will foresee in a possibility to do this.

• Production Code. Displays the production code (the serial number) of the TV. Note that if an NVM is replaced or is initialized after corruption, this production code has to be re-written to NVM. ComPair will foresee a in possibility to do this.

• Code 1. Gives the last five errors of the error buffer. As soon as the built-in diagnose software has detected an error, the buffer is adapted. The last occurred error is displayed on the leftmost position. Each error code is displayed as a 2-digit number. When less than 10 errors occur, the rest of the buffer is empty (00). See also paragraph “Error Codes” for a description.

• Code 2. Gives the first five errors of the error buffer. See also paragraph “Error Codes” for a description.

• Options 1. Gives the option codes of option group 1 as set in SAM (Service Alignment Mode).

• Options 2. Gives the option codes of option group 2 as set in SAM (Service Alignment Mode).

• 12NC SSB. Gives an identification of the SSB as stored in NVM. Note that if an NVM is replaced or is initialized after corruption, this identification number has to be re-written to NVM. ComPair will foresee in a possibility to do this. This identification number consists of 14 characters and is built up as follows:

- Seven last characters of the 12NC of the SSB itself.

- the serial number of the SSB, which consists of seven digits. Both can be fou SSB itself. The format of the identification number is then as follows: <last seven characters of 12NC of SSB><serial number of SSB> (total fourteen characters).

• Installed date. Indicates the date of the first installation of the TV. This date is acquired via time extraction.

• Digital Natural Motion. Gives the status of the Digital Natural Motion setting as set by the customer. Remark: a customer can choose between “OFF”, “MINIMUM” and “MAXIMUM”, but in CSM this item will only show “OFF” or “ON” (“ON” in case the customer has chosen “MINIMUM” or “MAXIMUM”)

• Pixel Plus. Gives the last status of the Perfect Pixel HD setting, as set by the customer. Possible values are “ON” and “OFF”. See DFU on how to change this item.

• DNR. Gives the last status of the Noise reduction setting, as set by the customer. Possible values are “OFF”, “MINIMUM”, “MEDIUM” and “MAXIMUM”. See DFU on how to change this item.

• Noise Figure. Gives an indication of the signal quality for the selected transmitter. Possible values are “BAD”, “AVERAGE”, “GOOD” and “DIGITAL”. In case of a digital channel, this item will never indicate: “BAD”, “GOOD” or “AVERAGE” but only displays “DIGITAL”.

• 12NC Display. Shows the 12NC of the display.

• Headphone Volume. Gives the last status of the headphone volume, as set by the customer. The value can vary from 0 (volume is minimum) to 100 (volume is maximum). See DFU on how to change this item.

• Surround Mode. Indicates the by the customer selected sound mode (or automatically chosen mode). Possible values are “STEREO” and “VIRTUAL DOLBY SURROUND”. It can also have been selected automatically by signalling bits (internal software). See DFU on how to change this item.

• AVL. Indicates the last status of AVL (Automatic Volume Level) as set by the customer: See DFU on how to change this item.

• Delta Volume. Indicates the last status of the delta volume for the selected preset as set by the customer: from “-12” to “+12”. See DFU on how to change this item.

• Volume. Indicates the last status of the volume for the selected preset as set by the customer: from “0” to “100”. See DFU on how to change this item.

• Balance. Indicates the last status of the balance for the selected preset as set by the customer: from “-10” to “+10”. See DFU on how to change this item.

• Preset Lock. Indicates if the selected preset has a child lock: “LOCKED” or “UNLOCKED”. See DFU on how to change this item.

• Lock after. Indicates at what time the channel lock is set: “OFF” or e.g. “18:45” (lock time). See DFU on how to change this item.

• Parental rating lock. Indicates the “Parental rating” as set by the customer. See DFU on how to change this item.

• Parental rating status. Indicates the “Parental rating” as transmitted by the broadcaster (if applicable). If the parental rating status is indicating a higher age then the parental rating lock as set by the customer, you will need to enter the child lock code.

• TV ratings lock. Only applicable for US.

• Movie ratings lock. Only applicable for US.

•

On timer. Indicat and when it is set to “ON”, also start time, start day and program number is displayed. See DFU on how to change this item.

• Location. Gives the last status of the location setting as set via the installation menu. Possible values are “SHOP” and “HOME”. If the location is set to “SHOP”, several settings are fixed. So for a customer location must be set to “HOME”. Can be changed via the installation menu (see also DFU).

nd on a sticker on the PWB of the

es if the “On timer” is set “ON” or “OFF”

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• HDMI key validity. Indicates if the HDMI keys (or HDCP keys) are valid or not. In case these keys are not valid and the customer wants to make use of the HDMI functionality, the SSB has to be replaced.

• Tuner frequency. Indicates the frequency the transmitter is tuned to.

• TV System. Gives information about the video system of the selected transmitter. In case a DVBT signal is received this item will also show ATSC. – BG: PAL BG signal received – DK: PAL DK signal received – L/La: SECAM L/La signal received – I: PAL I signal received – M: NTSC M signal received – ATSC: ATSC signal received – DVB: DVBT signal received

• 12NC one zip SW. Displays the 12NC number of the onezip file as it is used for programming software in production. In this one-zip file all below software versions can be found.

• Initial main SW. Displays the main software version which was initially loaded by the factory.

• Current main SW. Displays the built-in main software version. In case of field problems related to software, software can be upgraded. As this software is consumer upgradeable, it will also be published on the Internet. Example: Q581E_1.2.3.4.

• Flash utilities SW. Displays the software version of the software which contains all necessary components of the download application. To program this software, EJTAG tooling is needed. Example: Q581E_1.2.3.4.

• Standby SW. Displays the built-in stand-by processor software version. Upgrading this software will be possible via ComPair or via USB (see chapter Software upgrade). Example: STDBY_3.0.1.2.

• MOP SW. Only applicable for US. At the time of release of this manual, there was still a problem with this item, and some rubbish was displayed. Ignore this.

• Pacific 3 Flash SW. Displays the Pacific 3 software version.

• NVM version. Displays the NVM version as programmed by factory.

• Display parameters. for development purposes only.

• Private PQ parameters. for development purposes only.

• Public PQ parameters. for development purposes only.

• Ambilight parameters. for development purposes only.

• Acoustics parameters. for development purposes only.

• DFI software (if applicable). Displays the DFI EPLD software.

• DFI ambilight software (if applicable). Displays the DFI ambilight EPLD software.

Service Modes, Error Codes, and Fault Finding

How to Exit CSM

Press “MENU” on the RC-transmitter.

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5.3 S t ep w ise Start-up

There are two possible situations: one for protections detected by the stand-by software and one for protections detected by the main software. When the TV is in a protection state due to an error detected by stand-by software (and thus blinking an error) and SDM is activated via short-circuiting the pins on the SSB, the TV starts up until it reaches the situation just before protection. So, this is a kind of automatic stepwise start-up. In combination with the start-up diagrams below, you can see which supplies are present at a certain moment. Important to know is, that if e.g. the 3V3 detection fails (and thus error 8 is blinking) and the TV is restarted via SDM, the Stand-by Processor will enable the 3V3, but will not go to protection now. The TV will stay in this situation until it is reset (Mains/AC Power supply interrupted). Caution: in case the start up in this mode with a faulty FET 7U01 is done, you can destroy all IC’s supplied by the +3V3,

Mains

off

Off

Mains

due to overvoltage. It is recommended to measure first the FET 7U01 on short-circuit before activating SDM via the service pads. When the TV is in protection state due to an error detected by main software (MIPS protection) and SDM is activated via short-cutting the service pads on the SSB, the TV starts up and ignores the error. In this chassis, only error “63” (power-ok) is a MIPS protection and already displays the failure via blinking LED.

The abbreviations “SP” and “MP” in the figures stand for:

• SP: protection or error detected by the Stand-by Processor.

• MP: protection or error detected by the MIPS Main Processor.

- WakeUp requested

- Acquisition needed

- No data Acquisition required

- tact SW pushed

- last status is hibernate after mains ON

Tact switch

pushed

- Tact switch Pushed

- last status is hi bernate after mains ON

St by

Hibernate

In US region, hibernate state and tact switch are not available. Here the local keyboard tact switch acts as standby button.

Figure 5-3 Transition diagram

Semi St by

GoToProtection

WakeUp

requested

- St by requested

- tact SW pushed

WakeUp

requested

(SDM)

Protection

Active

GoToProtection

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Service Modes, Error Codes, and Fault Finding

Off/Stby to Semi

action holder: MIPS

action holder: St-by

autonomous action

The availability of the supplies is checked through detect

signals going to the st-by µP. These signals are available

for +12V and +5V (combined as AND function, called detect-5V-12V) and for +1V2 and +3V3 (combined as

AND function, called detect-1V2-2V5-3V). A low to high

transition of the signals should occur within a certain time

after toggling the standby line. If an observer is detected

before the time-out elapses, of course, the process

should continue in order to minimize start up time.

Off

Mains is applied

Standby Supply starts running.

All standby supply v o ltages become available.

st-by µP resets

All I/O lines have a High default state:

- Switch PNX85xx in reset (active LOW).

- NVM power line is high, no NVM communic ation possible.

Initialise I/O pins of the st-by µP, start keyboard sc anning, RC

because of the stby µP reset in an FHP set) which will start the

Switch ON Platform and display supply by switching LOW the

- Keep the Audio-reset high.

detection. Wake up reasons are off.

PDPGO l ine is high (either HW wise in a non FHP set or

FHP PDP.

POD-MODE and the ON-MODE I/O lines.

+5V, and +12V are switc hed on

Wait 50ms and then start polling the detect-

5V-12V every 40ms.

detect-5V-12V received within

2900 ms after POD-mode I/O

line toggle?

Stand by or

Protection

If the protection state was left by short circuiting the SDM pins, detecti on of a protection condition during

startup will stal l the startup. Protection conditions in a

playing set will be ignored . The protection mode will

not be entered.

- Switch A udio-Reset high.

It is low in the standby mode if the standby

mode lasted longer than 10s.

Display supply is switched on through the ON-mode I/O line

“5V 12V supply” error

Yes

activat e +5 V/+1 2V supp ly

detection algorithm. See CHS protecti ons.

Enable the +1V2 supply (ENABLE-1V2)

Wait 100ms

Enable the supply for

+1.8V and +3.3V (ENABLE-3V3)

Start polling the detect-1V2-2V5-3V3

every 40ms

Detection

received within

250 ms after enable-3V3

toggle?

Yes

Activate supply detection algorithms for DC-

DC outputs

Wait 20ms

SUPPLY-FAULT I/O line

is High?

50ms is used in the Jaguar platform. 100ms is recommended by the PNX85xx spec.

No separate enable is present for the +1V8 supply in the TV520.

Only one detect line is present in the TV520: it detects +1V2 and +3V3

1V2 2V5 3V3 DCDC error

Supply fault error

The supply fault line is an OR functi on of DCDC, DCDC5050 and POD/CI supply switch.

H_16770_109a.eps

230707

Figure 5-4 “Off” to “Semi Stand-by” flowchart (part 1)

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