Philips Q523.1U Service Manual

Color Television Chassis

ME7

Q523.1U

ME7

H_16770_000.eps

190207

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 18

6. Block Diagrams, Test Point Overview, and

Waveforms

Wiring Diagram 42” LCD 39 Wiring Diagram 42” LCD + AmbiLight 40 Wiring Diagram 47” LCD 41 Wiring Diagram 47” LCD + AmbiLight 42 Wiring Diagram 47” LCD + DFI + AmbiLight 43 Wiring Diagram 52” LCD 44 Block Diagram Supply 42” 45 Block Diagram Supply 47” Sanken 46 Block Diagram Video 47 Block Diagram Audio 48 Block Diagram Control & Clock Signals 49 Testpoint Overview SSB 50-55 I2C IC Overview 56 Supply Lines Overview 57

7. Circuit Diagrams and PWB Layouts Drawing PWB Display Supply (42”): Mains Filter & Standby(A1)58 61-62 Display Supply (42”): Supply (A2) 59 61-62 Display Supply (42”): DC / DC (A3) 60 61-62 DFI Panel: DC - DC (AB1) 63 73-74 DFI Panel: Video Flow (AB2) 64 73-74 DFI Panel: Clock (AB3) 65 73-74 DFI Panel: Supply (AB4) 66 73-74 DFI Panel: FPGA: Power & Control (AB5) 67 73-74 DFI Panel: FPGA: DFI (AB6) 68 73-74 DFI Panel: DDR A (AB7) 69 73-74 DFI Panel: DDR B (AB8) 70 73-74

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: Display Interfacing (AB9) 71 73-74 DFI Panel: FPGA Ambilight (AB10) 72 73-74 Small Signal Board(B1-B11) 75-115 119-124 SSB: SRP List 116-118 Side I/O Panel (D) 125 126 Keyboard Control Panel (E) 127 128 Interface Panel (FA) 129 129 Front IR / LED Panel (J) 130 131

8. Alignments 133

9. Circuit Descriptions, Abbreviation List, and IC Data Sheets 136 Abbreviation List 154 IC Data Sheets 157

10. Spare Parts List 165

11. Revision List 185

Published by EL 0770 BU CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 16773

EN 2 Q523.1U 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 : 42" (107 cm), 16:9

: 47" (120 cm), 16:9

: 52" (132 cm), 16:9 Resolution (H × V pixels) : 1920(× 3) × 1 080 Light output (cd/m Viewing angle (H × V degrees) : 176 × 176 Tuning system : PLL Color systems : ATSC

Video playback : NTSC Cable : Unscrambled digital

Tuner bands : UHF, VHF, S, Hyper

Supported video formats

- All sets : 480i @ 60 Hz

- 47PFL9732D/37+52” : 576i @ 50 Hz

Supported computer formats

- All sets : 640 × 480 @ 60 Hz

- 47PFL9732D/37+52” : 1280 × 1024 @ 60 Hz

) : 500

:NTSC

: 480p @ 60 Hz

: 720p @ 60 Hz

: 1080i @ 60 Hz

: 1080p @ 60 Hz

: 576p @ 50 Hz

: 720p @ 50 Hz

: 1080i @ 50 Hz

: 1080p @

: 800 × 600 @ 60 Hz

: 1024 × 768 @ 60 Hz

: 1366 × 768 @ 60 Hz

: 1920 × 1080i @

: 1920 × 1080p @

cable - QAM

24,25, 50 Hz

60 Hz

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 +45

Power consumption (values are indicative)

- Normal operation (W) : 226 (42")

- Stand-by (W) : < 1

Dimensions (W × H × D) (inch) : 42.1 × 27 × 4.6 (42")

Weight (lb.)

- 42PFL7422D/37 : 58.2

- 42PFL7432D/37 : 60.8

- 47PFL7422D/37 : 67.5

- 47PFL7432D/37 : 69.7

- 47PFL5432D/37 : 67.5

- 47PFL9732D/37 : 70.5

- 52PFL7422D/37 : 87.1

- 52PFL7432D/37 : 89.5

- 52MF437B/37 : 87.1

- 52MF437S/37 : 87.1

) : 110 - 240 ±10%

:MP3 : Slideshow (.alb)

(4xPFL7422D/37 and 47PFL5432D/37)

: 110 ±10%

(4xPFL7432D/37,

: 47PFL9732D/37 and

52”)

: 295 (47", all sets) : 310 (47PFL9732D/37

and 52")

: 45.6 × 29.6 × 4.6

(47")

: 49.2 × 27.1 × 4.4

(47PFL5432D/37)

: 50.8 × 32.9 × 4.6

(52")

1.1.2 Sound

Maximum power (W

):2 × 8

RMS

Technical Specifications, Connections, and Chassis Overview

1.2 Connections

Figure 1-1 Connection overview

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Note: The following connector color abbreviations are used

(acc. to DIN/IEC 757): Bk = Black, Bu = Blue, Gn = Green, Gy = Grey, Rd = Red, Wh = White, Ye = Yellow.

1.2.1 Side Connections

USB2.0

1234

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300904

Figure 1-2 USB (type A)

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

Head phone (Output)

Bk - Head phone 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

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

/ 75 ohm jq

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

Cinch: Audio - Out

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

/ 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

/ 10 kohm kq

RMS

Wh - Audio - L 0.5 V

/ 10 kohm kq

RMS

HDMI 1, 2 & 3: Digital Video, Digital Audio - In

18 2

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Figure 1-3 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

Service Connector (UART)

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

EN 4 Q523.1U LA1.

Technical Specifications, Connections, and Chassis Overview

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

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

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

DISPLAY SUPPLY PANEL

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

/ 75 ohm jq

/ 75 ohm j

/ 10 kohm jq

RMS

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

1.3 Chassis Overview

/ 10 kohm jq

RMS

/ 75 ohm jq

INTERFACE PANEL

KEYBOARD CONTROL

PANEL

SMALL SIGNAL

BOARD

DISPLAY SUPPLY PANEL

SMALL SIGNAL

BOARD

Figure 1-4 PWB/CBA locations 42" sets (with AmbiLight)

IR & LED PANEL

SIDE I/O PANEL

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KEYBOARD CONTROL

PANEL

IR & LED PANEL

SIDE I/O PANEL

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Figure 1-5 PWB/CBA locations 47" sets (all sets without DFI panel) and 42" sets (without Ambilight)

Technical Specifications, Connections, and Chassis Overview

EN 5Q523.1U LA 1.

DISPLAY

SUPPLY PANEL

SMALL SIGNAL

BOARD

Figure 1-6 PWB/CBA locations 47 and 52" sets (optional with DFI panel)

DFI PANEL

SIDE I/O PANEL

KEYBOARD CONTROL

PA NE L

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 Phillips 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

Directions for Use

EN 7Q523.1U LA 3.

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 center (e.g. AG is Bruges), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the production year, and digits 7 and 8 refer to production week (in example below it is 2006 week 17). The 6 last digits contain the serial number.

MODEL :

PROD.NO:

32PF9968/10

AG 1A0617 000001

220-240V 50/60Hz

VHF+S+H+UHF

MADE IN BELGIUM

128W

BJ3.0E LA

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2.3.6 Exchanging a Defective PDP

If a PDP has defective or “dead” pixels, do the following:

1. Locate the defective pixels.

2. Indicate their positions by means of a marker (with erasable ink!).

3. Indicate the positions of the defective pixels in the Defects Description Form (DDF), which is published in the PDP manuals.

4. After this, remove the PDP and return it to your Service organization.

If a PDP has to be removed from the TV set, always keep in mind that the PDP parts can easily be damaged by ESD, so take the following protective measures:

• Do not damage the flex foils (they are located on the left, right, upper and lower sides of the PDP).

• Do not scratch the glass plate.

• Avoid fingerprints.

2.3.7 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!

2.3.8 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.

Figure 2-1 Serial number (example)

3. Directions for Use

You can download this information from the following websites: http://www.philips.com/support http://www.p4c.philips.com

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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. They apply to the 47PFL7432D/37 (47" with AmbiLight).

Figure 4-1 Cable dressing 42" sets (with AmbiLight)

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Figure 4-2 Cable dressing 47" sets (all sets without DFI panel) and 42" sets (without Ambilight)

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Figure 4-3 Cable dressing 47 and 52" sets (optional with DFI panel)

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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 (see figure “Rear cover”).

• Foam bars (created for Service).

• Aluminium service stands (created for Service).

4.2.1 Foam Bars

Required for sets

42"

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4.2.2 Aluminium Stands

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Figure 4-5 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!

290507

Figure 4-4 Foam bars

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.

4.3 Assy/Panel Removal

4.3.1 Rear Cover

Warning: Disconnect the mains power cord before you remove

the rear cover.

Refer to figure “Rear Cover Removal” for details.

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2 2 2

2 2

Figure 4-6 Rear Cover Removal

1. Remove the stand.

2. Remove the mushrooms [1].

3. Remove the screws [2].

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

Refer to figures “Cover Removal” for details.

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Figure 4-7 Cover Removal

1. Unplug connector [4].

Note:

42" Sets with AmbiLight have an extra cover. Refer to figure “Cover Removal - 42" sets with AmbiLight” for details.

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Figure 4-8 Cover Removal - 42" sets with AmbiLight

1. Unplug connectors necessary for removing the backcover.

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.

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Mechanical Instructions

Figure 4-9 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 4-11 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 4-10 Keyboard Control Board -1-

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Figure 4-12 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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Figure 4-13 Speakers

4.3.6 Platform Supply Panel - 42" sets

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

1. Remove the fixation screws [1].

2. Unplug connectors [2].

3. Take the board out.

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Figure 4-14 Platform Supply Panel - 42" sets

4.3.7 Platform Supply Panel - 47" sets

Figure 4-15 Platform Supply Panel - 47" sets

4.3.8 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.

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

1. Remove the fixation screws [1].

2. Unplug connectors [2].

3. Take the board out.

Figure 4-16 Small Signal Board -1-

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4 4 4 5 5

Figure 4-17 Small Signal Board -2-

4.3.9 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.

Mechanical Instructions

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

9. Lift the LCD panel from the front cabinet.

Figure 4-18 AmbiLight Unit

When defective, replace the whole unit.

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4.3.10 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].

2. Unplug the connectors [3].

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

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

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

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

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

Mechanical Instructions

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Figure 4-19 LCD Panel -1-

3 3

8 8 8

Figure 4-20 LCD Panel -2-

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Mechanical Instructions

Figure 4-21 Central Sub-frame

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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 on the SSB shields. Ensure that EMC foams are mounted correctly.

Mechanical Instructions

EN 17Q523.1U LA 4.

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Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

Index of this chapter:

5.1 Test Points

5.2 Service Modes

5.3 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. Several key ICs are capable of generating test patterns, which can be controlled via ComPair. In this way it is possible to determine which part is defective.

Perform measurements under the following conditions:

• Service Default Mode.

• Video: Color bar signal.

• Audio: 3 kHz left, 1 kHz right.

5.2 Service Modes

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”).

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 stand-by software).

Specifications

Table 5-1 SDM default settings

Default

Region Freq. (MHz)

Europe, AP(PAL/Multi) 475.25 PAL B/G

Europe, AP DVB-T 546.00 PID

NAFTA, AP-NTSC, LATAM

• Tuning frequency 61.25 MHz for NTSC: The TV shall tune to physical channel 3 only if channel 3 is an analog channel or if there is no channel 3 installed in the channel map. If there is a digital channel installed in channel 3, then the frequency to which the set will tune, would be as specified in the channel map and could be different from the one corresponding to the physical channel 3.

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

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

• All service-unfriendly modes (if present) are disabled, like: – (Sleep) timer. – Child/parental lock. – Picture mute (blue mute or black mute). – Automatic volume levelling (AVL). – Auto switch “off” (when no video signal was received

for 10 minutes). – Skip/blank of non-favorite pre-sets. – Smart modes. – Auto store of personal presets. – Auto user menu time-out.

How to Activate SDM

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

• Analog 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.

• Analog SDM can also be activated by shortening 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.

Video: 0B 06 PID PCR: 0B 06 PID Audio: 0B 07

61.25 (ch 3) NTSC M

system

DVB-T

Service Modes, Error Codes, and Fault Finding

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.

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: Q531U-1.2.3.4 = AAAAB_X.Y.W.Z).

• AAAA= the software 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.

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• 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” 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 information regarding option codes, see chapter 8. 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 lose your changes.

• Initialize NVM. When an NVM was corrupted (or replaced) in the former EMG based chassis, the microprocessor replaces the content with default data (to assure that the set can operate). However, all preferences and alignment values are gone now, and option numbers are not correct. Therefore, this was a very drastic way. In this chassis, the procedure is implemented in another way: 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 (same as in the past, however now it

happens conscious).

Note: When you have a corrupted NVM, or you have replaced the NVM, there is a high possibility that you will not have picture any more because your display option is not correct. So, before you can initialize your NVM via the SAM, you need to have picture and therefore you need the correct display option. To adapt this option, you can use ComPair (the correct HEX values for the options can be found in the table below) 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 option code as mentioned in the first column of the next table). Make sure to key in all three digits, also the leading zero’s. If the above action is successful, 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.

• 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 information.

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

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

• Operation hours PDP. Here you are able to reset the operations hours of the plasma display. This has to be done in case of replacement of the display. Not applicable to LCD sets.

• Test settings. for development purposes only.

• Upload to USB. Here you are able 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” and “Display-related alignments”. 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”, confirm with “OK” and wait until “Done” appears. Now the settings are

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Service Modes, Error Codes, and Fault Finding

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 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. Here you are able 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.

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.

• 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 color 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) is working. Remark: Because of the possible addition of the DFI function, the Pacific IC is not any longer the last hardware block in front of the display. This means that switching on the Pacific testpattern, resulting in no or bad picture, can be caused by a bad DFI or Display. To distinguish between these two, the DFI testpattern will be switched on for three seconds, three seconds after the Pacific testpattern is started. This will result in following sequence:

• CSM entry code given

• 3 sec Pacific test pattern

• 3 sec DFI test pattern

• CSM menu entered

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 information can be handy if you don’t have picture. Other 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 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 possibility to do this.

• Code 1. Gives the latest 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 a possibility to do this. This identification number consists of 14 characters and is built up as follows:

- 7 last characters of the 12NC of the SSB itself

- the serial number of the SSB, which consists of 7 digits. Both can be found on a sticker on the PWB of the SSB itself. The format of the identification number is then as follows: <last 7 characters of 12NC of SSB><serial number of SSB> (total 14 characters).

• Installed date. Indicates the date of the first installation of the TV. This date is acquired via time extraction from a PBS (Public Broadcast Channel).

• Pixel Plus. Gives the last status of the Pixel Plus 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 DNR 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 the noise ratio for the selected transmitter. This value can be defined as “BAD”, “AVERAGE”, “GOOD “or “DIGITAL”. In case of a digital channel, this item will never indicate: “BAD”, “GOOD” or “AVERAGE” but only displays “DIGITAL”.

• 12NC Display. 12NC of the display.

• Head phone Volume. Gives the last status of the head phone 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.

Service Modes, Error Codes, and Fault Finding

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• 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.

• TV ratings lock. Indicates the “TV ratings lock” as set by the customer. Change via “MENU”, “TV”, “CHANNELS”, “TV RATINGS LOCK”. Possible values are: “ALL”, “NONE”, “TV-Y”, “TV-Y7”, “TV-G”, “TV-PG”, “TV-14” and “TV-MA”.

• Movie ratings lock. Indicates the “Movie ratings lock” as set by the customer. Change via “MENU”, “TV”, “CHANNELS”, “MOVIE RATINGS LOCK”. Possible values are “ALL”, “NR”, “G”, “PG”, “PG-13”, “R”, “NC-17” and “X”.

• V-Chip TV status. Indicates the setting of the V-chip as applied by the selected TV channel. Same values can be shown as for “TV RATINGS LOCK”.

• V-Chip movie status. Indicates the setting of the V-chip

as applied by the selected TV channel. Same values can be shown as for “MOVIE RATINGS LOCK”.

• Region rating status (RRT). Displays the Rating Region Table.

• Region rating enabled. Indicates if the ratings are enabled.

• Table channel changed. Indicates if the table has been changed at broadcast side.

• On timer. Indicates if the “On timer” is set “ON” or “OFF” 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).

• 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.

• 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

• 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 version 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: Q531U_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: Q531U_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. Displays the MOP software version.

• 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. Not applicable for US.

How to Exit CSM

Press “MENU” on the RC-transmitter.

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Service Modes, Error Codes, and Fault Finding

5.3 Stepwise Start-up

The stepwise start-up method, as known from FTL/FTP sets (EMG based sets) is not valid any more. There are two possible situation: one for protections detected by stand-by software and one for protections detected by 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 here 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

Mains

off

faulty FET 7U01 is done, you can destroy all IC’s supplied by the +3V3, due to over voltage. It’s recommended to measure first the FET 7U01 on short-circuit before activate 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.

Off

Mains

- 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 hibernate 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.

Semi

St by

GoToProtection

WakeUp

requested

- St by requested

- tact SW pushed

WakeUp

requested

(SDM)

Protection

Active

GoToProtection

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Figure 5-2 Transition diagram

Service Modes, Error Codes, and Fault Finding

Off/Stby to Semi

EN 23Q523.1U LA 5.

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 oltages become available.

st-by µP resets

All I/O lines have a High default state:

- Switch PNX85xx in reset (activ e LOW).

- NVM power line is high, no NVM communication 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 switched on

Wait 50ms and then start polling the detect-

5V-12V every 40ms.

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 condi tions in a

playing set will be ignored. The protection mode will

not be entered.

- Switch Audio-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

detect-5V-12V received within

2900 ms after POD-mode I/O

line toggle?

Yes

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

detection algorithm. See CHS protections.

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?

“5V 12V supply” error

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 detec t 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.

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Figure 5-3 “Off” to “Semi Stand-by” flowchart (part 1)

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Service Modes, Error Codes, and Fault Finding

SUPPLY-FAULT I/O line

is High?

Switch LOW the RE SET-NVM_WP-NANDFLASH line. Add a 2ms delay before

trying to address the NVM to all o w correct NVM initialization.

(pulling pin of the probe interface to

ground by inserting EJTAG probe)

Release AVC system reset

Feed warm boot script

Yes

Enable the supply fault detection

algorithm

Set I²C slave address

of Standby µP to (A0h)

Detect EJTAG debug probe

EJTAG probe

connected ?

Cold boot?

Yes

Release AVC system reset

Feed cold boot script

Supply fault error

This will allow access to NVM and NAND FLASH and can not be done earlier because the FLASH needs to be in Write Protect as long as the supplies are not available.

An EJTAG probe (e.g. WindPower ICE probe) can be connected for Linux Kernel debuggi ng purposes.

Yes

Release AVC system reset Feed initializing boot script

disable alive mechanism

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

Code = 5

Switch AVC PNX85xx

in reset (active low )

Wait 10ms

Switch the NVM reset

line HIGH.

Disable all supply related protections and

switch off the +2V5, +3V3 DC/DC converter.

Wait 5ms

Boot process of the PNX5050 also starts at this point. For full details,

see PNX5050 System Design document of Peter Deckmyn.

Bootscript ready

in 1250 ms?

Yes

Set I²C slave address

of Standby µP to (60h)

RPC start (comm. protocol)

Code = 53

Flash to Ram image transfer succeeded

within 3 0s?

Yes

SW initialization

succeeded within 2 0s?

Yes

Enable Alive check mechanism

MIPS reads the wake up reason

from standby µP.

In case of an LCD set , check the

Power-OK display line

Wait until AVC starts to

communicate

3-th try?

switch off the remaining DC/DC

converters

Switch POD- MO DE and ON-MODE

I/O line high.

Power-ok display high ?

Yes

Reset the Pacific by pulling LOW the Pacific

hardw are res et l ine duri ng 100ms .

Figure 5-4 “Off” to “Semi Stand-by” flowchart (part 2)

Log power-ok error and enter

protection

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Service Modes, Error Codes, and Fault Finding

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switch off the remaining DC/DC

3-th try?

Yes

Blink Code as

error code

Switch POD- MO DE and ON-MODE

- Channeldecoder type TDA10060 cannot be reloaded without reset of the channeldecoder.

- Channeldecoder type TDA10048 can be reloaded without reset .

converters

I/O line high.

Channel decoder

TDA 10048?

Third try? No

Power-ok display high ? No

Yes

Reset the Pacific by pulling LOW the Pacific

hardw are res et l ine duri ng 100ms .

Release Pacific reset

and wait 200ms

Ping the Paci fic through I²C

Pacific acknowledges?

Yes

Init Pacific according use case :

- lvds or CMOS input and output

- panel config… to be discussed with Stefan / SW if we will put this here or in the display excel overview of Stefan or in …..

Enable the Pacific output by sending the PanelConfig.PanelOn

to the Pacific in case of a DFI set

Start 4 seconds preheating timer in case of

an LPL scanning backlight LCD set.

Initialize audio according FMS information:

YesNo

Download firmware into the channel

decoder

Downloaded successfully?

Log power-ok error and enter

protection

Third Pacific boot retry?No

Yes

Log Pacific error

This is needed here becaus e the Pacific has to deliver an output clock towards the DFI. Otherwise the DFI cannot deliver ambilight functionality in the lampadaire mode. The presence of the DFI can be determined via the display option.

Yes

Log channel decoder error

Yes

initialize tuner , Master IF and channel

decoder according FMS information

Initialize source selection according FMS

and CHS information

Wait until Cpipe delivers a stable output

Initialize video processing IC 's according FMS information:

- PNX5050 in /82

-scaler EPLD

initialize AutoTV by triggering CHS AutoTV Init interface

See appropriate CHS documents for further details.

Initialize Pacific or EPLD related Ambilight

Do not enter semi-standby state in case of an LPL scanning backlight LCD set before 4s preheating timer has elapsed.

clock

Reset EPLD

Wait 100ms

Reset Pacific clock

settings (if applicable)

Initialize Ambilight with Lights off .

EPLD and Pacific should be reset when a stable input clock become s available at their input.

Semi-Standby

Figure 5-5 “Off” to “Semi Stand-by” flowchart (part 3)

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Service Modes, Error Codes, and Fault Finding

action holder: A VC

action holder: St-by

autonomous action

Semi Standby

Wait until previous on-state is left more than 2

seconds ago. (to prevent LCD display problems)

Assert RGB video blanki ng

and audio mute

Rewrite Pacific register 0x03 (output format) :

this command is sometimes not processed properly by the

Pacific at initialisation time , resending it here solves the issue.

Switch on the display by sending the

PanelConfig.PanelOn (I²C) command to the Paci fic

wait 250ms (min. = 200ms)

Switch off the dimming backlight feature and

make sure PWM output is set to 100%

Switch on LCD backlight

The higher level requirement is that

audio and video should be demuted

without transient effects and that the

audio should be demuted maximum 1s

before or at the same time as the

unblanking of the video.

Initialize audio and video

processing IC's and functions

according needed use case.

Wait unti l valid and stable audio and video, corresponding to

the requested output is delivered by the AVC AND the

backlight PWM has been on for 1second.

Switch Audio-Reset low and wait 5ms

Release audio mute and wait 100ms before any other audio

handling is done (e.g. volume change)

Restore dimming backlight feature, P WM output and unblank

Figure 5-6 “Semi Stand-by” to “Active” flowchart non DFI (50/60 Hz) preheat

the video.

Active

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Service Modes, Error Codes, and Fault Finding

Semi Standby

Wait until previous on-state is left more than 2

seconds ago. (to prevent LCD displa y problems)

Ass ert RGB video blanking

and audio mute

Setting the display related timings of the DFI is not needed: The

display related timings are hardcoded in the DFI

EN 27Q523.1U LA 5.

action holder: AVC

action holder: St-by

autonomous action

Rewrite Pacifi c register 0x03 (output format) with TcuUpdate: this

command is sometimes not process ed properly by the Pacific at

initia lisation time, resendi ng it here solves the issue.

Switch on the display panel and the lvds via

the OutputEnabl eDFI command

wait 250ms (min. = 200ms)

Switch off the dimming backlight feature and

make sure PWM output is set to 100%

Switch on LCD backlight

The higher level requirement is that

audio and video should be demuted

without transient effects and that the

audio shoul d be demuted maximum 1s

before or at the same time as the

unblanking of the video.

Initialize audio and video

processing IC's and functions

according needed us e case.

Wait until valid and stabl e audio and video, corresponding to

the requested output is del ivered by the AVC AND the

backlight PWM has been on for 1second.

Switch A udio-Res e t low and wait 5ms

Release audio mute and wai t 100ms before any other audio

handling i s done (e.g. volume change)

Restore dimming backlight feature, PWM output and unblank

the video.

Active

Figure 5-7 “Semi Stand-by” to “Active” flowchart DFI (100/120 Hz) preheat

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290307

EN 28 Q523.1U LA5.

Service Modes, Error Codes, and Fault Finding

Active

Mute all sound outputs via s o ftmute

Wait 100ms

Set main amplifier mute (I/O: audio-mute)

Force ext audio outputs to ground

(I/O: audio reset)

And wait 5ms

switch off LCD backlight

action holder: AVC

action holder: St-by

autonomous action

Mute all video outputs

Wait 250ms (min. = 200ms)

Switch off the display by sending the

PanelConfig.PanelOff (I²C) command to the Pacific

switch off ambient light

Semi Standby

Figure 5-8 “Active” to “Semi Stand-by” flowchart

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Service Modes, Error Codes, and Fault Finding

EN 29Q523.1U LA 5.

Semi Stand by

If ambientlight functionality was used in semi-standby

(l ampadaire mode), switch off ambient light

Delay transi tion until ramping down of ambient light is

finished. *)

transfer Wake up reasons to the S tand by µP.

Switch Memories to self-refresh (this creates a more

stable condition when switching off the power).

Switch AVC system in reset state

action holder: MIPS

action holder: St-by

autonomous action

*) If this is not performed and the set is switched to standby when the switch off of the ambilights is still ongoing, the lights will switch off abruptly when the supply is cut.

Important remark:

release reset audio 10 sec after entering standby to save power

Wait 10ms

Switch the NVM reset line HIGH .

Disabl e all supply related protections and switch off

the +1V8 and the + 3 V3 DC/DC converter

Wait 5ms

switch off the +1V2 DC/DC converters

Switch OFF all supplies by switching HIGH the P OD -

MODE and the ON-MODE I/O lines.

Stand by

For PDP this means CPUGO becomes low.

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260307

Figure 5-9 “Semi Stand-by” to “Stand-by” flowchart

EN 30 Q523.1U LA5.

Service Modes, Error Codes, and Fault Finding

action holder: MIPS

action holder: St-by

autonomous action

Log the appropriate error and

set stand-by flag in NVM

Redefine wake up reasons for protection

state and transfer to stand-by µP.

Switch off LCD lamp supply

Wait 250ms (min. = 200ms )

Switch off LVDS signal

Switch off 12V LCD supply within a time frame of

min. 0.5ms to max. 50ms after LVDS switch off.

Ask stand-by µP to enter protection state

Switch AVC in reset state

Wait 10ms

Switch the NVM reset line HIGH.

Disable all supply related protecti ons and switch off

the +1V8 and the +3V3 DC/DC converter.

Wait 5ms

switch off the +1V2 DC/DC converter

Switch OFF all supplies by switching HIGH the POD -

MODE and the ON-MODE I/O lines.

Flash the Protection-LED in order to indicate

protection state*.

(*): This c a n be the standby LED or the ON LED depending on the availability in the set under discussion.

Protection

Figure 5-10 “Protection” flowchart

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