Philips BJ2.4U-PA, BJ2.5U-PA Service Manual

Color Television Chassis

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BJ2.4U/BJ2.5U

Service Manual SDI Plasma Panels: 3122 785 14990

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Contents Page Contents Page

1. Technical Specifications, Connections, and Chassis Overview 2

2. Safety Instructions, Warnings, and Notes 5

3. Directions for Use 7

4. Mechanical Instructions 8

5. Service Modes, Error Codes, and Fault Finding 14

6. Block Diagrams, Test Point Overviews, and

Waveforms

Wiring Diagram 42” & 50” Entry 41 Wiring Diagram 42” & 50” SDI 42 Block Diagram Video 43 Block Diagram Audio 44 Block Diagram Control 45 I2C IC’s Overview 46 Supply Lines Overview 47

7. Circuit Diagrams and PWB Layouts Drawing PWB Ambi Light (AL1) 48 51 Ambi Light (AL2) 49 51 Ambi Light (AL3) 50 51 Small Signal Board (B1A-B12) 52-90 93-98 SRP Overview Part 1 & Part 2 91-92 External I/O Panel: Externals A (BE1) 99 101 External I/O Panel: Externals B (BE2) 100 101 Audio Panel: Left / Right (C1) 102 104 Audio Panel: Protection & Mute Control (C2) 103 104 Side I/O Panel (Top B) (D) 105 106 Side I/O Panel (Entry & Step) (D) 107 108 Control Board (Top B & Step) (E) 109 109 Control Board (Entry) (E) 110 110 LED Panel (Top B & Step) (J) 111 112 LED Panel (Entry) (J) 113 114

8. Alignments 115

9. Circuit Descriptions, Abbreviation List, and IC Data Sheets 120 Abbreviation List 140 IC Data Sheets 143

10. Spare Parts List 156

11. Revision List 167

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Copyright 2006 Philips Consumer Electronics B.V. Eindhoven, The Netherlands. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.

Published by EL 0666 BG CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 15931

EN 2 BJ2.4U/BJ2.5U PA1.

Technical Specifications, Connections, and Chassis Overview

1. Technical Specifications, Connections, and Chassis Overview

Index of this chapter:

1.1 Technical Specifications

1.2 Connection Overview

1.3 Chassis Overview

Notes:

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

• Specifications are indicative (subject to change).

1.1 Technical Specifications

1.1.1 Vision

Display type : Plasma (SDI) Screen size : 42” (107 cm), 16:9

Resolution (HxV pixels) : 1024(*3)x768p (42”)

Min. contrast ratio : 10000:1 Min. light output (cd/m Viewing angle (HxV degrees) : 160x160 Tuning system : PLL TV Color systems : ATSC

Video playback : NTSC Cable : Unscrambled digital

Tuner bands : VHF

Supported video formats : 640x480i - 1fH

Supported computer formats : 640x480 @ 60Hz

) : 1500

: 50” (127 cm), 16:9

: 1366(*3)x768p (50”)

:NTSC

cable - QAM

: Digital cable ready -

CableCard

: UHF : S-band : Hyper-band

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

: 800x600 @ 60Hz : 1024x768 @ 60Hz : 1366x768 @ 60Hz

1.1.2 Sound

Sound systems : AV Stereo

Maximum power (W

1.1.3 Multimedia

Supported digital media : Compact Flash I & II

Supported file formats : JPEG

USB input : USB1.1 (12 Mbps)

1.1.4 Miscellaneous

Power supply:

- Mains voltage (V

- Mains frequency (Hz) : 50/60

Ambient conditions:

- Temperature range (°C) : +5 to +40

- Maximum humidity : 90% R.H.

Power consumption (values are indicative)

- Normal operation (W) : ≈ 400 (42”)

- Standby (W) : < 2

Dimensions (WxHxD in cm) : 124x68x10.4 (42”)

) : 2 x 15

RMS

) : 110 - 240

:BTSC

: Memory Stick : Microdrive (upto 2GB) : SD / mini SD Card : Multi Media Card : Smart Media Card

:MP3 :MP3-pro : Slideshow (.alb)

: USB2.0 (480 Mbps)

: ≈ 467 (50”)

: 141x78x10.4 (50”)

Figure 1-1 Side and rear I/O connections BJ2.5U

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Technical Specifications, Connections, and Chassis Overview

Figure 1-2 Side and rear I/O connections BJ2.4U

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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, and Ye= Yellow.

1.2.1 Side Connections

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

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

/ 75 ohm jq

SVHS (Hosiden): Video Y/C - In

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

/ 75 ohm j

P / 75 ohm j

USB2.0

1234

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Figure 1-3 USB (type A)

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

1.2.2 Digital Media Reader with USB2.0 (for BJ2.4 U PA chassis)

Service Connector (UART)

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

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

18 2

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Figure 1-4 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

Aerial - In

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

In sets with the BJ2.4U PA chassis, a 6-in-1 card reader unit is available, which is connected via USB to the Small Signal Board (see also par. “Technical Specifications” -> “Multimedia”). This unit also contains two USB2.0 connectors.

1.2.3 Rear Connections

POD: CableCARD Interface

68p - See diagram B10A jk

AV1 Cinch: Video YPbPrHV- In

Gn - Video Y 1 V Bu - Video Pb 0.7 V Rd - Video Pr 0.7 V Bk - H-sync 0 - 5 V jq

/ 75 ohm jq

Bk - V-sync 0 - 5 V jq

AV1 Cinch: Video CVBS - In, Audio - In

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

/ 75 ohm jq

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

EN 4 BJ2.4U/BJ2.5U PA1.

Technical Specifications, Connections, and Chassis Overview

DIGITAL AUDIO Cinch: S/PDIF - In

Bk - Coaxial 0.2 - 0.6V

/ 75 ohm jq

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

/ 75 ohm j

P / 75 ohm j

AV2 S-Video (Hosiden): Video Y/C - In

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

/ 75 ohm j

P / 75 ohm j

AV2 Cinch: Video CVBS - In, Audio - In

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

/ 75 ohm jq

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

1.3 Chassis Overview

AMBI LIGHT PANEL

AV3 Cinch: Video YPbPr - In

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

/ 75 ohm jq

DIGITAL AUDIO Cinch: S/PDIF - Out

Bk - Coaxial 0.4 - 0.6V

/ 75 ohm kq

MONITOR OUT Cinch: Video CVBS - Out, Audio - Out

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

/ 75 ohm kq

/10 kohm kq

RMS

/ 10 kohm kq

RMS

GEMSTAR Mini Jack: Remote Control - In/Out

1 - Ground Gnd H 2 - RXD j 3-TXD k 4-IR-OUT k 5 - RXD k

AMBI LIGHT PANEL

SMALL SIGNAL BOARD

CONTROL BOARD

LED PANEL

Figure 1-5 PWB/CBA locations

SDI PDP

POWER SUPPLY

SIDE I/O PANEL

AUDIO AMPLIFIER

EXTERNAL I/O PANEL

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Safety Instructions, Warnings, and Notes

2. Safety Instructions, Warnings, and Notes

EN 5BJ2.4U/BJ2.5U PA 2.

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. Available ESD protection equipment: – Complete kit ESD3 (small tablemat, wristband,

connection box, extension cable and earth cable) 4822 310 10671.

– Wristband tester 4822 344 13999.

• Be careful during measurements in the high voltage section.

• Never replace modules or other components while the unit is switched "on".

• When you align the set, use plastic rather than metal tools. This will prevent any short circuits and the danger of a circuit becoming unstable.

2.3 Notes

2.3.1 General

• Measure the voltages and waveforms with regard to the chassis (= tuner) ground (H), or hot ground (I), depending on the tested area of circuitry. The voltages and waveforms shown in the diagrams are indicative. Measure them in the

Service Default Mode (see chapter 5) with a colour bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 475.25 MHz for PAL, or

61.25 MHz for NTSC (channel 3).

• Where necessary, measure the waveforms and voltages

with (D) and without (E) aerial signal. Measure the voltages in the power supply section both in normal operation (G) and in stand-by (F). These values are indicated by means of the appropriate symbols.

• The semiconductors indicated in the circuit diagram and in the parts lists, are interchangeable per position with the semiconductors in the unit, irrespective of the type indication on these semiconductors.

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

2.3.2 Schematic Notes

• All resistor values are in ohms, and the value multiplier is often used to indicate the decimal point location (e.g. 2K2 indicates 2.2 kohm).

• Resistor values with no multiplier may be indicated with either an "E" or an "R" (e.g. 220E or 220R indicates 220 ohm).

• All capacitor values are given in micro-farads (µ= x10 nano-farads (n= x10

• Capacitor values may also use the value multiplier as the decimal point indication (e.g. 2p2 indicates 2.2 pF).

• An "asterisk" (*) indicates component usage varies. Refer to the diversity tables for the correct values.

• The correct component values are listed in the Spare Parts List. Therefore, always check this list when there is any doubt.

2.3.3 Rework on BGA (Ball Grid Array) ICs

General

Although (LF)BGA assembly yields are very high, there may still be a requirement for component rework. By rework, we mean the process of removing the component from the PWB and replacing it with a new component. If an (LF)BGA is removed from a PWB, the solder balls of the component are deformed drastically so the removed (LF)BGA has to be discarded.

Device Removal

As is the case with any component that, is being removed, it is essential when removing an (LF)BGA, that the board, tracks, solder lands, or surrounding components are not damaged. To remove an (LF)BGA, the board must be uniformly heated to a temperature close to the reflow soldering temperature. A uniform temperature reduces the risk of warping the PWB. To do this, we recommend that the board is heated until it is certain that all the joints are molten. Then carefully pull the component off the board with a vacuum nozzle. For the appropriate temperature profiles, see the IC data sheet.

Area Preparation

When the component has been removed, the vacant IC area must be cleaned before replacing the (LF)BGA. Removing an IC often leaves varying amounts of solder on the mounting lands. This excessive solder can be removed with either a solder sucker or solder wick. The remaining flux can be removed with a brush and cleaning agent. After the board is properly cleaned and inspected, apply flux on the solder lands and on the connection balls of the (LF)BGA. Note: Do not apply solder paste, as this has been shown to result in problems during re-soldering.

-9

), or pico-farads (p= x10

-12

-6

EN 6 BJ2.4U/BJ2.5U PA2.

Safety Instructions, Warnings, and Notes

Device Replacement

The last step in the repair process is to solder the new component on the board. Ideally, the (LF)BGA should be aligned under a microscope or magnifying glass. If this is not possible, try to align the (LF)BGA with any board markers. So as not to damage neighbouring components, it may be necessary to reduce some temperatures and times.

More Information

For more information on how to handle BGA devices, visit this URL: www.atyourservice.ce.philips.com (needs subscription, not available for all regions). After login, select “Magazine”, then go to “Repair downloads”. Here you will find Information on how to deal with BGA-ICs.

2.3.4 Lead-free Solder

Philips CE is producing lead-free sets (PBF) from 1.1.2005 onwards.

Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 5 and 6 refer to the production year, digits 7 and 8 refer to production week (in example below it is 1991 week 18).

MODEL :

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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avoid mixed regimes. If this cannot be avoided, carefully clear the solder-joint from old tin and re-solder with new tin.

• Use only original spare-parts listed in the Service-Manuals. Not listed standard material (commodities) has to be purchased at external companies.

• Special information for lead-free BGA ICs: these ICs will be delivered in so-called "dry-packaging" to protect the IC against moisture. This packaging may only be opened shortly before it is used (soldered). Otherwise the body of the IC gets "wet" inside and during the heating time the structure of the IC will be destroyed due to high (steam-) pressure inside the body. If the packaging was opened before usage, the IC has to be heated up for some hours (around 90°C) for drying (think of ESD-protection!). Do not re-use BGAs at all!

• For sets produced before 1.1.2005, containing leaded soldering tin and components, all needed spare parts will be available till the end of the service period. For the repair of such sets nothing changes.

In case of doubt whether the board is lead-free or not (or with mixed technologies), you can use the following method:

• Always use the highest temperature to solder, when using SAC305 (see also instructions below).

• De-solder thoroughly (clean solder joints to avoid mix of two alloys).

Caution: For BGA-ICs, you must use the correct temperatureprofile, which is coupled to the 12NC. For an overview of these profiles, visit the website www.atyourservice.ce.philips.com (needs subscription, but is not available for all regions) You will find this and more technical information within the "Magazine", chapter "Repair downloads". For additional questions please contact your local repair help desk.

Figure 2-1 Serial number example

Regardless of the special lead-free logo (which is not always indicated), one must treat all sets from this date onwards according to the rules as described below.

Figure 2-2 Lead-free logo

Due to lead-free technology some rules have to be respected by the workshop during a repair:

• Use only lead-free soldering tin Philips SAC305 with order code 0622 149 00106. If lead-free solder paste is required, please contact the manufacturer of your soldering equipment. In general, use of solder paste within workshops should be avoided because paste is not easy to store and to handle.

• Use only adequate solder tools applicable for lead-free soldering tin. The solder tool must be able: – To reach a solder-tip temperature of at least 400°C. – To stabilise the adjusted temperature at the solder-tip. – To exchange solder-tips for different applications.

• Adjust your solder tool so that a temperature of around 360°C - 380°C is reached and stabilised at the solder joint. Heating time of the solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400°C, otherwise wear-out of tips will increase drastically and flux-fluid will be destroyed. To avoid wear-out of tips, switch “off” unused equipment or reduce heat.

• Mix of lead-free soldering tin/parts with leaded soldering tin/parts is possible but PHILIPS recommends strongly to

2.3.5 Alternative BOM identification

In September 2003, Philips CE introduced a change in the way the serial number (or production number, see Figure 2-1) is composed. From this date on, the third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative BOM (Bill of Materials used for producing the specific model of TV set). It is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different O.E.M.s. By looking at the third digit of the serial number, the service technician can see if there is more than one type of B.O.M. used in the production of the TV set he is working with. He can then consult the At Your Service Web site, where he can type in the Commercial Type Version Number of the TV set (e.g. 28PW9515/12), after which a screen will appear that gives information about the number of alternative B.O.M.s used. If the third digit of the serial number contains the number 1 (example: AG1B033500001), then there is only one B.O.M. version of the TV set on the market. If the third digit is a 2 (example: AG2B0335000001), then there are two different B.O.M.s. Information about this is important for ordering

the correct spare parts!

For the third digit, the numbers 1...9 and the characters A...Z can be used, so in total: 9 plus 26 = 35 different B.O.M.s can be indicated by the third digit of the serial number.

2.3.6 Practical Service Precautions

• It makes sense to avoid exposure to electrical shock. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard.

• Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.

3. Directions for Use

You can download this information from the following websites:

http://www.philips.com/support http://www.p4c.philips.com

Directions for Use

EN 7BJ2.4U/BJ2.5U PA 3.

EN 8 BJ2.4U/BJ2.5U PA4.

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.

4.2 Service Positions

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

• The buffers from the packaging.

• Foam bars (created for service).

• Aluminium service stands (created for Service).

4.2.1 Foam Bars

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Figure 4-2 Foam bars

The foam bars (order code 3122 785 90580 for two pieces) can be used for all types and sizes of Flat TVs. By laying the TV face down on the (ESD protective) foam bars, a stable situation is created to perform measurements and alignments. By placing a mirror under the TV, you can monitor the screen.

Figure 4-1 Cable dressing

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4.2.2 Aluminium Stands

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Figure 4-3 Aluminium stands (drawing of MkI)

The new MkII aluminium stands (not on drawing) 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 new 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!.

Mechanical Instructions

EN 9BJ2.4U/BJ2.5U PA 4.

4.3 Assy/Panel Removal

4.3.1 Metal Back Plate

Caution: Disconnect the Mains/AC Power cord before you

remove the rear cover!

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 speakers or the Front cover.

2. Remove the four "mushrooms" [1] from the rear cover. See figure “Metal back plate and rear cover removal” for details.

3. Remove the screws [2].

3 2

Figure 4-4 Metal back plate and rear cover removal

4.3.2 Rear Cover

1. Remove screws [3].

2. Lift the plastic rear cover from the set. Make sure that wires and flat foils are not damaged.

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1. Remove the cables that are guided by the speaker frame from its clamps [1].

2. Remove parker T10 screws [2] that hold the frame and pull the frame downwards.

Figure 4-6 Speaker compartment removal

Note: the speaker compartment cannot be removed without

the speakers being removed first, since on each side of the compartment there is a hidden screw underneath the speaker.

4.3.5 AmbiLight Inverter Panel

There are two AmbiLight Inverter Panels used in this set. The instructions to remove the right one (seen from the back side of the set) are as follows:

1. Disconnect the cables [1] from the panel.

2. Push back the clamps [2] on the right side that hold the assy.

3. Take out the panel (it hinges on the left side).

When defective, replace the whole unit.

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4.3.3 Speaker

After removing the rear cover, you gain access to the speakers. Each speaker is fixed with four T10 screws [1]. See Figure “Speaker removal”. After removal of these screws, the speakers can be removed. Caution: never disconnect the speakers with a playing set, because otherwise the class-D audio amplifiers could be damaged!

Figure 4-5 Speaker removal

4.3.4 Speaker Compartment

After the speakers have been removed, the plastic speaker compartment underneath the set can be removed. See Figure “Speaker compartment removal”.

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Figure 4-7 AmbiLight right side inverter panel removal

4.3.6 Control Panel

The Control Panel can be taken out by removing the two T10 screws [1] that hold the plastic frame. See Figure “Control

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EN 10 BJ2.4U/BJ2.5U PA4.

Mechanical Instructions

panel removal”. The cable can not be disconnected from the assy at this moment.

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Figure 4-8 Control panel removal

The assy is packed into two plastic frames. To unpack the inner frame, lift the two clamps [1] of the outer frame and take the inner frame out. See Figure “Control panel frame removal”.

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Figure 4-10 Side I/O panel removal

4.3.8 Audio Panel

1. Disconnect all cables from the Audio Panel.

2. Remove the two T10 mounting screws [1] from the Audio Panel. See Figure “Audio Panel removal”.

3. Take out the Audio Panel (it hinges at the right side).

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Figure 4-9 Control panel frame removal

To take the assy out of the inner frame, lift the two clamps of the frame [2] and slightly pull the assy out. Only now the cable can be disconnected. When defective, replace the whole unit.

4.3.7 Side I/O Panel

The Side I/O Panel can be removed together with its plastic casing. See figure “Side I/O panel removal” for details.

1. Disconnect the USB cable and the flat cable [1] from the panel.

2. Push the plastic frame slightly downwards towards the bottom of the set [2], and take the frame out together with the assy.

3. Push back the clamps [3] on the left side that hold the assy.

4. Take out the assy from the plastic frame, it hinges on the right side.

When defective, replace the whole unit.

Figure 4-11 Audio Panel removal

4.3.9 Small Signal Board (SSB) and Main I/O Panel

Caution: is is absolutely mandatory to remount all different

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

1. Unplug connector [1]. See figure “Rear SSB shield”.

2. Unplug USB connector [2].

3. Remove black clip from LVDS connector.

4. Carefully unplug the fragile LVDS connector.

5. Unplug earth tab.

6. Remove screws [5] and [6]. See figure “Bottom SSB shield”.

7. Remove rear and bottom shield.

8. Unplug connectors [7].

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9. Remove screws [8].

10. Remove SSB from the set.

Mechanical Instructions

EN 11BJ2.4U/BJ2.5U PA 4.

555

Figure 4-12 Rear SSB shield

6 6

6 6 6

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Figure 4-15 SDI PDP Power supply panel

1. Unplug connectors [1].

2. Remove screws [2].

4.3.11 AmbiLight Diffusor Frame (Step & Top)

Before the AmbiLight lamp units can be removed, the AmbiLight diffusor frame must be lifted. Before this, the speaker frame must be removed, as described earlier in this chapter. See figure “AmbiLight diffusor frame removal” for details.

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Figure 4-13 Bottom SSB shield

For removing Rear I/O Panel (see figure “Rear I/O”):

1. Unplug connector [9].

2. Remove screws [10].

3. Remove the panel from the set.

Figure 4-14 Rear I/O panel

4.3.10 SDI PDP Power Supply Panel

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Figure 4-16 AmbiLight Diffusor frame removal

1. Remove the remaining tapping T10 screws [1].

2. From the right AmbiLight Inverter Panel, unplug two cables [2] that lead to the SSB.

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3. Remove the side I/O panel and Control Panel as previously

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described without unplugging the cables. Unclamp the cables in the set and place the units in the centre of the set.

4. Carefully lift the plastic frame from the set. See Figure “AmbiLight diffusor frame lift”.

See figure “SDI PDP Power supply panel” for details.

EN 12 BJ2.4U/BJ2.5U PA4.

Mechanical Instructions

Figure 4-17 AmbiLight diffusor frame lift

4.3.12 Now the AmbiLight lamp units can be removed from the frame.

Each of them is fixed with four T10 parker screws: two on the inside and two on the outside of the frame.

4.3.13 LED Panel

1. After the AmbiLight diffusor frame has been removed, the LED Panel is accessible.

2. Remove the T10 mounting screws that hold the panel.

3. Take out the panel.

When defective, replace the whole unit. Reconnect the earthcable during re-assembly.

4.3.14 Plasma Display Panel / Glass Plate

111

1 1

G_15930_082.eps

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Figure 4-18 PDP Panel removal -1-

G_15960_104.eps

070306

310310

1212

11 11

310310

G_15930_083.eps

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Figure 4-19 PDP Panel removal -2-

1. Remove the key control unit.

2. Remove the loudspeaker compartment by removing screws [1]; see figure “PDP Panel removal -1-“ for details.

3. Unplug connectors 1M36 and 1H01 from the side I/O panel [2].

4. Unplug connectors 1M09 and 1M59 from the right AmbiLight inverter panel [3].

5. Unplug connectors [4] from the SDI PDP power supply panel. See figure “PDP Panel removal -2-” for details.

6. Carefully unplug LVDS connector [5] from the SSB.

7. Remove screw [6].

8. Remove LED panel [7].

9. Remove screw [8] from the earth tab.

10. Remove screws [9].

11. Gently lift the shielding with the SSB from the frame.

12. Remove screws [10].

13. Use brackets [11] to lift the panel from the set and put it at a safe place.

14. Remove screws [12] and the brackets from the panel, and install the brackets on the new panel.

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 13BJ2.4U/BJ2.5U PA 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 almost impossible to measure waveforms with a standard oscilloscope. Therefore, waveforms are not given in this manual. 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) offer several features for the service technician, while the Customer Service Mode (CSM) is used for communication between a Customer Helpdesk and a customer.

There is also the option of using ComPair, a hardware interface between a computer (see requirements below) and the TV chassis. It offers the ability of structured troubleshooting, test pattern generation, error code reading, software version readout, and software upgrading.

Minimum requirements for ComPair: a Pentium processor, Windows 95/98, and a CD-ROM drive (see also paragraph “ComPair”).

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

Use one of the following methods:

• 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.

• Short for a moment the two solder pads [1] on the SSB, with the indication “SDM”. They are located outside the shielding. Activation can be performed in all modes, except when the set has a problem with the Stand-by Processor. See figure “SDM service pads”.

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 (only applicable for 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 start the blinking LED procedure (not valid in protection mode).

Specifications

Table 5-1 SDM default settings

Region Freq. (MHz)

Europe, AP-PAL/Multi 475.25 PAL B/G

NAFTA, AP-NTSC, LATAM 61.25 (ch. 3) NTSC M

• 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

Default system

G_15930_084.eps

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Figure 5-1 SDM service 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.

Service Modes, Error Codes, and Fault Finding

EN 15BJ2.4U/BJ2.5U PA 5.

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. VIPER SW Version. Displays the software version

of the VIPER software (main software) (example: BJ24U-1.2.3.4_12345 = AAAAB_X.Y.W.Z_NNNNN).

• AAAA= the chassis name.

• B= the region: A= AP, E= EU, L= Latam, U = US.

• X.Y.W.Z= the software version, where X is the main version number (different numbers are not compatible with one another) and Y is the sub version number (a higher number is always compatible with a lower number). The last two digits are used for development reasons only, so they will always be zero in official releases.

• NNNNN= last five digits of 12nc code of the software.

– 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”).

• Defective Module. Here the module that generates the error is displayed. If there are multiple errors in the buffer, which are not all generated by a single module, there is probably another defect.Take into account that not all errors will create a defective module message.

• 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.

• Initialise 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 a picture and therefore you need the correct display option. To adapt this option, use ComPair. The correct HEX values for the options can be found in the table below.The display option code (decimal) is also available on the option code sticker located inside the TV mentioned by “Screen Diversity” e.g. 044. Remark: use always 3 digits for the display option code, for “7” => “007”.

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Service Modes, Error Codes, and Fault Finding

Displays

Div.Displays

Display Type Brand

0 PDP SDI 42 768p 1024 V3_SA42AX-****-Rev,2

1 PDP SDI v3 50 768p 1366 V3-S50HW-XD03-v0,0

2 PDP FHP 42 1024i 1024 A1-FPF42C128128UC-52-v01 NA 10 (8)

3 LCD LPL 30 768p 1280 4 LCD LPL 37 768p 1366 5 LCD LPL 42 768p 1366

6 LCD Sharp 32 768p 1366

7 PDP SDI V3 42 480p 852

8 PDP FHP 37 1024i 1024

10 LCD AUO 30 768p 1280 11 LCD LPL 32 768p 1366 12 LCD AUO 32 768p 1366

13 LCD Sharp 37 768p 1366

13 LCD Sharp 37 768p 1366 14 LCD LPL 42 X 1080p 1920 15 PDP SDI 37 480p 852 16 PDP FHP 37 1080i 1024 17 PDP FHP 42 1080i 1024

18 PDP FHP 55 768p 1366

19 LCOS VENUS 720p 1280 NA 20 LCOS VENUS X 1080p 1920 21 LCD LPL 26 768p 1366 LC260WX2 - SL01 - v1,0 22 LCD LPL 32 X 768p 1366 23 PDP LG 42 480p 852 24 PDP SDI V4 42 480p 852

25 PDP SDI V5 42 768p 1024

26 PDP FHP A2 42 1024i 1024 27 PDP SDI HD V5” SDI V5 50 768p 1366 28 LCD Sharp 37 X 1080P 1920

29 LCD AUO 32

31 LCD Sharp 37 X X 1080P 1920 32 LCD LPL 20 768p 1366 33 LCD QDI 23 768p 1366 34 ECO PTV 51 1080i 1366 35 ECO PTV 55 1080i 1366 36 ECO PTV 61 1080i 1366 37 PDP FHP A3 42 1024I 1024 38 DLP 50 720p 1280 39 DLP 60 720p 1280 40 LCD Sharp 2.3 32 768p 1366 41 LCD LPL 42 X 768p 1366 42 PDP SDI V4 63 768p 1366 43 LCD Sharp 3.0 37 X 768p 1366 44 LCD Sharp 2.3 37 768p 1366 45 LCD LPL 26 768p 1366 LC260WX2 - SLB2 - v0,0 46 LCD LPL 32 768 p 1366 47 LCD LPL 42 768p 1366 48 LCD QDI 26 768p 1366 49 LCD AUO 26 768p 1366 50 LCD AUO 32 768p 1366 51 LCD AUO 37 768p 1366 52 LCD AUO 32 768p 1366 53 LCD LPL 37 768p 1366

54 PDP LGE 42 768p 1024

Clarification Resolution Year

Size

(Inch)

Full HD

Clear

LCD

Ver Output

Res

720p 12809 LCOS XION

768p 1366

Hor Output

Res

Code nr Dimming

LC300W01-A3P7-v2.1 analog 8 LC370W01-A6K1-v1.0 analog 8

LC420W02-A6-v1.0 analog 8

ASV1-LQ315T3LZ13

ASV2.2

V3_S42SD-YD05-v0.2 NA 8

A1_PFP37C128128UB-71-

v0.1

Xion1,05-v0.01 NA 8

T296XW01-v0.5 analog 8

LC32CW01-A6K1v1.0 analog 8

T315XW01V0-v0.1 PWM 8

ASV2_LQ370T3LZ21

ASV2.2LQ370T3LZ44

Asv2.3 (1e samples) PWM (analog)

LC420WU1-SL01-v0.0 PWM 8

Tbd

FPF55C17196UA-51-v04 NA 10

LC320WX2-SL01 analog 8

PDP42x2#56# Rev.00 NA 8

V4_S42SD-YD07-v0.0 NA 10 (8)

V4-S42AX-YD01-Rev0.1 NA 10 (8)

FPF42C128128UD-51 NA 8 V4-S50HW-XD04-v0.2 NA 10(8) LQ370D3LZ1x ASV2.2 analog 10(8)

T315XW01-V3-V0.1 8

LW370D3LZ1xASV3.0

(1e sample)

LQ370D3LZ1x ASV3.0 PWM 10(8)

LC200WX1-SL01 tbd

QD23HL tbd

FPF42128135UA

ASV 2.3 PWM (analog) 8

LC420WX2-SLA1 analog

ASV 3.0 PWM ASV 2.3 PWM (analog)

LCD320W01-SL06 PWM 8

SLB1 PWM 8

QD26HDL02 PWM 8 T260XW02 V4 PWM 8 T315XW01 V9 PWM 8 T370XW01 V1 PWM 8

T315XW02V5 PWM 8

LC370WX01-SL04 PWM 8

LGE 42” XGA X3 NA 10

PWM

analog Full Baby

NA 8

NA 10 (8)

analog

NA 10

analog 8

NA NA NA

PWM 8

PWM

(analog)

PWM 10(8)

NA n.a. (8) NA n.a. (8) NA NA NA NA?

PWM 8

Nr of bit

n.a. (8)

10 10

2k5

X X

S *

XX X

XX S S

S S

2k6

X30 LCD Sharp 37 X X 1080p 1920

S S S

S S X

E_06532_030.eps

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Figure 5-2 Display option code overview

Note: Be very careful which display option code you choose,

make sure it’s the original one (“Screen Diversity” on the option code sticker).In case the wrong display option code is used the TV can start rebooting.

• Store. All options and alignments are stored when pressing “cursor right” 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.

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 submenu.

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.

Note: As long as SAM is activated, it is not possible to change a channel. This could hamper the White Point alignments because you cannot choose your channel/frequency any more. Workaround: after you have sent the RC code “062596 INFO” you will see the service-warning screen, and in this stage it is still possible to change the channel (so before pressing the “OK” button).

Service Modes, Error Codes, and Fault Finding

EN 17BJ2.4U/BJ2.5U PA 5.

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.

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

• SW Version (example: BJ24U-1.2.3.4_12345). 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.

• SBY Processor Version. Displays the built-in stand-by processor software version. Upgrading this software will be possible via a PC and a ComPair interface (see chapter Software upgrade).

• 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.In case you have no picture, the set type and the serial number are also located at the bottom of the front from the TV.There you should find a sticker with the mentioned data on it.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.

• 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). Change via ”MENU”, “TV”, “SOUND”, “HEADPHONE VOLUME”.

• Dolby. Indicates whether the received transmitter transmits Dolby sound (“ON”) or not (“OFF”). Attention: The presence of Dolby can only be tested by the software on the Dolby Signaling bit. If a Dolby transmission is received without a Dolby Signaling bit, this indicator will show “OFF” even though a Dolby transmission is received.

• Sound Mode. Indicates the by the customer selected sound mode (or automatically chosen mode). Possible values are “STEREO” and “VIRTUAL DOLBY SURROUND”. Change via “MENU”, “TV”, “SOUND”, “SOUND MODE”. It can also have been selected automatically by signaling bits (internal software).

• Tuner Frequency. Not applicable for US sets.

• Digital Processing. Indicates the selected digital mode. Possible values are “STANDARD” and “PIXEL PLUS”. Change via “MENU”, “TV”, “PICTURE”, “DIGITAL PROCESSING”.

• TV System. Gives information about the video system of the selected transmitter. – M: NTSC M signal received – ATSC: ATSC signal received

• Center Mode. Not applicable.

• DNR. Gives the selected DNR setting (Dynamic Noise Reduction), “OFF”, “MINIMUM”, “MEDIUM”, or “MAXIMUM”. Change via “MENU”, “TV”, “PICTURE”, “DNR”

• Noise Figure. Gives the noise ratio for the selected transmitter. This value can vary from 0 (good signal) to 127 (average signal) and to 255 (bad signal). For some software versions, the noise figure will only be valid when “Active Control” is set to “medium” or “maximum” before activating CSM.

• Source. Indicates which source is used and the video/ audio signal quality of the selected source. (Example: Tuner, Video/NICAM) Source: “TUNER”, “AV1”, “AV2”, “AV3”, “HDMI 1”, “SIDE”. Video signal quality: “VIDEO”, “SVIDEO”, “RGB 1FH”, “YPBPR 1FH 480P”, “YPBPR 1FH 576P”, “YPBPR 1FH 1080I”, “YPBPR 2FH 480P”, “YPBPR 2FH 576P”, “YPBPR 2FH 1080I”, “RGB 2FH 480P”, “RGB 2FH 576P” or “RGB 2FH 1080I”. Audio signal quality: “STEREO”, “SPDIF 1”, “SPDIF 2”, or “SPDIF”.

• Audio System. Gives information about the audible audio system. Possible values are “Stereo”, ”Mono”, “Mono selected”, “Analog In: No Dig. Audio”, “Dolby Digital 1+1”, “Dolby Digital 1/0”, “Dolby Digital 2/0”, “Dolby Digital 2/1”, “Dolby Digital 2/2”, “Dolby Digital 3/0”, “Dolby Digital 3/1”, “Dolby Digital 3/2”, “Dolby Digital Dual I”, “Dolby Digital Dual II”, “MPEG 1+1”, “MPEG 1/0”, “MPEG 2/0”. This is the same info as you will see when pressing the “INFO” button in normal user mode (item “signal”). In case of ATSC receiving there will be no info displayed.

• Tuned Bit. Not applicable for US sets.

• Preset Lock. Indicates if the selected preset has a child lock: “LOCKED” or “UNLOCKED”. Change via “MENU”, “TV”, “CHANNELS”, “CHANNEL LOCK”.

• Lock After. Indicates at what time the channel lock is set: “OFF” or e.g. “18:45” (lock time). Change “MENU”, “TV”, “CHANNELS”, “LOCK AFTER”.

• 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”.

• 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).

• AVL. Indicates the last status of AVL (Automatic Volume Level): “ON” or “OFF”. Change via “MENU”, “TV”, “SOUND”, “AVL”. AVL can not be set in case of digital audio reception (e.g. Dolby Digital or AC3)

• Delta Volume. Indicates the last status of the delta volume for the selected preset as set by the customer: from “-12” to “+12”. Change via “MENU”, “TV”, “SOUND”, “DELTA VOLUME”.

• HDMI key validity. Indicates the key’s validity.

• IEEE key validity. Indicates the key’s validity (n.a.).

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Service Modes, Error Codes, and Fault Finding

• POD key validity. Indicates the key’s validity, this will only work with an authentic POD card.

• Digital Signal Quality. not applicable

How to Exit CSM

Press any key on the RC-transmitter (with exception of the “CHANNEL +/-”, “VOLUME”, “MUTE” and digit (0-9) keys).

5.2.4 Service Mode of Converter Boards for Ambi Light

Purpose

To switch on the lamps manually in case I

C-bus triggering

fails.

The Service Mode can be activated by disconnecting connectors 1M59 and 1M49 and then by shorting for a moment the two solder pads [1] on the Ambi Light Inverter Panel. See figure “Service Mode pads AmbiLight panel”.

• Switches the Ambi Light board to protection if needed (in case of protection only the lamps switch off, no set protection is triggered).

There are two ways of protection: parallel arcing protection and serial arcing protection. Parallel arcing protection is performed by sensing the switching frequency. In case of short circuit of the transformer output, this frequency > 100 kHz and the board goes into protection. Serial arcing protection is performed by detection of arc in ground wire of the lamp units. In this case, the protection pulse is transmitted via an opto-coupler. Protection can be disabled by short-circuiting diode 6112 or capacitor 2173 or by connecting pin 8 of the microprocessor to ground.

G_15950_049.eps

060406

Figure 5-3 Service Mode pads AmbiLight panel

In this chassis, both single and double fitted boards can be used. The double fitted boards are used in sets with 3 or 4 sided Ambi Light units whereas the single fitted boards are used in sets with 2 sided Ambi Light units. A double fitted board can drive 2 lamp units (6 lamps) and a single fitted board can drive 1 lamp unit (3 lamps).

The double fitted boards are supplied by +12Va and +12Vb. The microprocessor is supplied by +12Va. Therefore, if only +12Va is available, lamp unit B will not work. See figure “Building blocks of Converter Board” for details.

+12Va

Stab.

Board select

+5V

Inverters

Processor

PWM out

+12Va

Lamp unit A

I²C

Lamp unit B

Protection

+12Vb (12

-13V)

G_15950_050.eps

060406

Figure 5-4 Building blocks of Converter Board

The microprocessor performs the following tasks:

• Dimming of Ambi Light by means of PWM.

• Translation of I

C-bus commands to PWM.

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EN 19BJ2.4U/BJ2.5U PA 5.

Repair Tips

In case only one or no lamp unit at all works, probably the +12Vb (12 - 13 V) is not available or the fuse is broken. Check for broken MOSFETS or check if they are switched off properly by the transistors connected to the PWM outputs of the microprocessor.

In case the Ambi Light switches off after two seconds, serial arcing or parallel arcing protection is active. Serial arcing protection can be excluded by disconnecting the opto-coupler; check for bad solder joints on transformer or lamp units. Parallel arcing protection can be disabled by grounding pin 8 of the microprocessor. Usually the switching frequency (normally 63 kHz) will then be too high. Possible causes are one MOSFET of the converter has no gate drive or is broken, or there is a short-circuit of the output of the transformer.

5.3 Stepwise Start-up

The stepwise start-up method, as known from FTL/FTP sets is not valid any more. The situation for this chassis is as follows:

when the TV is in a protection state detected via the Stand-by Processor (and thus blinking an error) and SDM is activated via shortcutting 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 11 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).

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 VIPER Main Processor.

Off

Mains

“off”

- WakeUp requested

- Acquisition needed

Stand-by

(Off St-by)

- POD Card remove

- Tact SW pushed

- No data Acquisition required and no POD present

- Tact SW pushed

- WakeUp requested

- Acquisition needed

POD

Stand-by

Only applicable for sets with CableCARDTM slot (POD)

No data Acquisition

required and POD present

Mains

“on”

Semi

Stand-by

GoToProtection

GoToProtec

tion

WakeUp

requested

- St-by requested

- Tact SW pushed

WakeUp

requested

Protection

Active

GoToProtection

F_15400_095.eps

020206

Figure 5-5 Transition diagram

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Service Modes, Error Codes, and Fault Finding

Off

Mains is applied

Standby Supply starts running.

+5V2, 1V2Stb, 3V3Stb and +2V5D become present.

In case of PDP 3V3 Vpr to CPU PDP becomes present.

st-by µP resets

All I/O lines have a “high” default state:

- Assert the Viper reset.

- Sound-Enable and Reset-Audio should remain “high”.

- NVM power line is “high”, no NVM communication possible.

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

detection, P50 decoding. Wake up reasons are “off”.

In case of FHP PDP: Switch PDPGO “low”

CPUGO (inverse of the stby I/O line POD-MODE) and PDPGO

are then both “low” and the PDP is in the “low power” mode.

ECO Baby Jaguar??

Switch “low” the NVM power reset line. Add a 2ms delay

before trying to address the NVM to allow correct NVM

Switch “on” all supplies by switching LOW the POD-MODE

+5V, +8V6, +12VS, +12VSW and Vsound are switched on

Wait 50ms and then star t polling the detect-

5V, detect-8V6 and detect-12V every 40ms.

initialization.

and the ON-MODE I/O lines.

Yes Yes

Stand-by or

Protection

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

startup will stall the startup. Protection conditions in a

playing set will be ignored. The protection mode will

not be entered.

- Switch Sound-Enable and Reset-Audio “high”. They are “low” in the standby mode if the

standby mode lasted longer than 2s.

Auto Protection

Line High??

Switching the POD-MODE and the

Switching the POD-MODE low in an FHP PDP set makes the CPUGO go “high” and starts the PDP CPU.

except in an FHP PDP Cold

Boot

The availabilit y of the supplies is check ed through detect signals (delivered by

dedicated detect-IC's) going to the st-by µP. These signals are available for

+12V, +8V6, +5V, +1V2 and +2V5. A low to high transition of the signals should

occur within a certain time after toggling the standby line. If an observers is

detected before the time-out elapses, of course, the process should continue in

order to minimize start up time.

“on” mode “low” in an SDI PDP se t makes the PDP supplies go to the

“on” mode. Within 4 seconds, a

valid LVDS must be sent to t he display to prev ent protection. (valid for V3 version)

action holder: MIPS

action holder: St-by

autonomous action

Audio Error

detect-5V

received within

2900 ms after POD-MODE

Switching the PDPGO “high” will give a visual artefa ct and should only be done if really necessary.

activate +5V supply detection algorithm

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

Start polling the detect-1V2 every 40ms

To part B To part B

Only applicable for sets with CableCARD

toggle?

Yes

detect-12VSW received within

2900 ms after POD-mode

toggle?

Yes

activate +12VSW supply

detection algorithm

slot (POD)

Yes

FHP PDP Set?

Yes

Switch PDPGO high :

PDP should start: 5V, 8V6 and

12V are activated

detect-5V

received within

2900 ms after PDPGO

toggle?

+12V error

No need to wait for the 8V6 detection at this point.

within 6300 ms after POD-mode toggle?

Startup shall not wait for this detection

detect-8V6 received

and continue startup.

+8V6 error

+5V error

Yes

activate +8V6 supply

detection algorithm

return

F_15400_096a.eps

230606

Figure 5-6 “Off” to “Semi Stand-by” flowchart (part 1)

Service Modes, Error Codes, and Fault Finding

EN 21BJ2.4U/BJ2.5U PA 5.

From part A

From part B

detect-1V2

received within

250ms?

Yes

Enable the supply for

+2.5V and +3.3V (ENABLE-3V3)

Start polling the detect-3V3 every 40ms

detect-3V3

received within

250 ms?

Yes

Activate supply detection algorithms for

+1V2 and +3V3

SUPPLY-FAULT I/O line

is High?

Yes

Enable the supply fault detection

interrup t

action holder: MIPS

action holder: St-by

autonomous action

+1.2V error

No separate enable and detect is present for the +2V5 supply in the Baby Jaguar.

+3.3V errorNo

Supply fault errorNo

Release viper reset

Feed warm boot script(2)

Set I²C slave address

of Standby µP to (A0h)

Detect EJTAG debug probe

(pulling pin of the probe interface to

ground by inserting EJTAG probe)

EJTAG pro be

connected ?

Cold boot?

Yes

Release viper reset

Feed cold boot script(1)

Release PNX2015 reset 100ms after

Viper reset is released

Bootscript ready

in 1250 ms?

Yes

Set I²C slave address

of Standby µP to (64h)

RPC start (comm. protocol)

Yes

Release viper reset

Feed initializing boot script (3)

disable alive mechanism

Release PNX2015 reset 100ms

after Viper reset is released

Flash to RAM image

transfer succeeded

within 30s?

Yes

Viper SW initialization

succeeded

within 20s?

Code = 5

Switch Viper in reset

Code = 53

To part C To part C To part C To part C

F_15400_096b.eps

Figure 5-7 “Off” to “Semi Stand-by” flowchart (part 2)

EN 22 BJ2.4U/BJ2.5U PA5.

Service Modes, Error Codes, and Fault Finding

From part B From part B From part B

Yes

Enable Alive check mech anism

MIPS reads the wake up reason

from standby µP.

SDI PDP

Set?

FHP PDP

Set?

Switch “on” the LVDS output of

the PNX2015 with a correct

clock frequency within 4s after

Yes

switching the POD and “on”

mode to prevent PDP display

supply protection.

These LVDS items are

SDI V3 displa y only ! !

Send ST BYEN = 1

Yes

to PDP displa y (I²C)

PFCON = 1

VCCON = 1

Wait until Viper starts to

communicate

3-th try?

Yes

Log Code as

error code

Wait 10ms

Switch the NVM reset

line HIGH.

Disable all supply related protections and

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

Wait 5ms

switch off the remaining DC/DC

converters

Switch POD-MO DE an d ON-MODE

I/O line “high”.

Wait for the +8V6 to be de tected if not yet present. (if

it does not come, the standby µP will enter a

protection mode, this is not a dead end here)

PWR-OK-PDP

received within 10s

after POD and “on” mode

toggle ?

Yes

Init SDI PDP

Switch LVDS back off if

end state is not the active

state.

Switch PDPGO “ low”

Init FHP PDP

action holder: MIPS

action holder: St-by

autonomous action

Log display error and enter protection mode

Start 4 seconds preheating timer in case of

a LPL scanning backlight LCD set.

AVIP needs to be started before the MPIF in order to have a good clock distribution. AVIP default power-up mode is Standby. The Viper instructs AVIP via I²C to enable all the PLLs and clocks and hence enter to Full Power mode.

Initialize PNX2015 HD subsystem

MPIFs should be initialized MPIF should deliver 4 observers: POR= 0; normal operation MSUP = 1: Main supply is present ASUP = 1; audio supply is present ROK = 1; reference frequency is present (coming from AVIP)

All observers present with correct state?

Yes

Initialize tuners and HDMI

Initialize source selectio n

Initialize video processing ICs

- Spider (if available)

Initialize Columbus

Initialize 3D Combfilte r

Initialize AutoTV

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

Log appropriate Observer error

Only applicable for sets with CableCARDTM slot (POD)

Figure 5-8 “Off” to “Semi Stand-by” flowchart (part 3)

Semi-Stand-by

F_15400_096c.eps

020206

Service Modes, Error Codes, and Fault Finding

42" FHP A1

Semi Standby

EN 23BJ2.4U/BJ2.5U PA 5.

action holder: M I P S

Assert RGB video blanking

and audio m ut e

Initialize audio and video processing IC's and

functions according needed use case.

Wait until QVCP generates a valid lvds output

clock.

Make PDPGO high:

Vs and Va become active

Power-OK detected

within 5s (tbc)?

Yes

PDP ON m ode [CN DC] = 4

detected within 5s (tbc)?

action holder: St-by

autonomous ac tion

Yes

Switch on LVDS transmitter

(PNX2015)

Enable anti-agi ng through

Anti-agingEnable interface of

CHS displays

Switch off RGB blanking after valid, stable video, corresponding to

the requested output is delivered by the Viper

Unblank by sending ADEN = 1

to PDP display

Switch Audio-Reset and sound enable low and demute

(see CHS audio LdspMute interface).

Start polling PDP-IRQ

Active

G_15910_010.eps

230606

Figure 5-9 “Semi Stand-by” to “Active” flowchart 42” FHP A1

EN 24 BJ2.4U/BJ2.5U PA5.

Service Modes, Error Codes, and Fault Finding

42" / 50" SDI V4

Semi Standby

Assert RGB video blanking

and audio m ute

Ini tial iz e audio and video processing I C 's and

functions according needed use case.

Wait until QVCP generates a valid lvds output

clock.

Switch on LVDS transmitter

(PNX2015) (if not already on)

action holder: M IP S

action holder: St-by

autonomous action

Switch the SDI Picture Flag low to enable picture. 1.5

seconds later, the display will unblank automatically

and show the lvds content.

Enable anti -aging through

Anti-agingEnable interface of

CHS display s

Switch off RGB blanking after valid, stable video, corresponding to

the requested output is delivered by the Viper

Switch Audio-Reset and sound enable low and

demute

(see CHS audio LdspMute interface).

Active

PWR-OK-PDP

receiv ed within 1 0s

after POD and O N m ode

toggle ?

Yes

Log error and

enter protection

mode

SPreturn

G_15910_011.eps

230606

Figure 5-10 “Semi Stand-by” to “Active” flowchart 42” and 50” SDI V4

Service Modes, Error Codes, and Fault Finding

42" FHP A1

EN 25BJ2.4U/BJ2.5U PA 5.

action holder: M IP S

Active

Mute al l sound outputs.

Switch reset-audio and sound-enable

lines high

Blank by sending ADEN = 0

to PDP display

Mute al l video outputs

Switch off LVDS signal

(Viper I/O: PD-LVDS)

action holder: St-by

autonomous action

Switch off PDP display by switching PDPGO low

Stop I RQ polli ng

Semi Standby

Figure 5-11 “Active” to “Semi Stand-by” flowchart 42” FHP A1

G_15910_012.eps

230606

EN 26 BJ2.4U/BJ2.5U PA5.

Service Modes, Error Codes, and Fault Finding

42" / 50" S DI V 4

Active

Mute all sound outputs.

Switch RESET_AUDIO and

SOUND_ENABLE lines “high”

Blank PDP display.

Mute all video outputs.

Wait 600ms to prevent image

retention

(display error)

action holder: MIPS

action holder: St-by

autonomous action

Switch “off” LVDS signal

(PNX2015).

Switch the SDI Picture Flag “high” to prevent

testpattern display in semi-standby mode

Semi Stand-by

Figure 5-12 “Active” to “Semi Stand-by” flowchart 42” and 50” SDI V4

F_15400_098.eps

260505

Service Modes, Error Codes, and Fault Finding

Semi Stand by

Delay transition until ramping down of ambient light is

finished. *)

EN 27BJ2.4U/BJ2.5U PA 5.

action holder: MIPS

action holder: St-by

autonomous action

Switch ambient light to passive mode with RGB

values on zero. *)

transfer Wake up reasons to the

Stand by µP.

Images are re-transferred to DDR-RAM from

Flash RAM (verification through checksum)

MIPS image completes the application reload,

stops DDR-RAM access, puts itself in a

sleepmode and signals the standby µP when the

standby mode can be entered.

DDR-RAM is put in self refresh mode and the images

are kept in the hibernating DDR-RAM.

Wait 5ms

Switch Viper in reset state

*) If this is not performed and the set is switched to standby when the ramping of the EPLD is still ongoing, the lights will remain lit in standby.

Important remark:

release reset audio and sound-

enable 10 sec after entering

standby to save power

Wait 10ms

Switch the NVM reset line HIGH.

Disable all supply related protections and switch off

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

Wait 5ms

switch off the remaining DC/DC converters

Switch OFF all supplies by switching HIGH the POD-

MODE and the ON-MODE I/O lines.

Stand by

For PDP this means CPUGO becomes low.

G_15960_133.eps

100306

Figure 5-13 “Semi Stand-by” to “Stand-by” flowchart

EN 28 BJ2.4U/BJ2.5U PA5.

Service Modes, Error Codes, and Fault Finding

Semi Stand by

action holder: MIPS

This state transition is entered when standby is requested

and an authenticated POD is present. When in semi-

action holder: St-by

autonomous action

standby, the CEservices will set the POD standby NV M

bit and ask infra to reboot. After the reboot, POD standby

will be entered. The Trimedia images are not started in

this case and CEsvc will ask infra to enter the Hardware

Reboot

Power-down HDMI and 1394 hardware by keeping

POWE RDOWN -1394 GPI O 0 line hi gh.

Set Viper HW blocks (TM1, TM2, MBS, VMSP1 and

VMSP2) t o power down mode .

H ibernate the PN X2015 m em ory and keep the

PNX2015 in reset state

POD standby state.

Disable +8V6 supply detection algorithm

Disable audi o protecti on algorithm

Switch OFF all supplies which are not needed in POD

standby by switching HIGH the ON-MODE I/O line.

POD standby

Figure 5-14 “Semi Stand-by” to “POD Stand-by” flowchart

G_15960_134.eps

100306

Service Modes, Error Codes, and Fault Finding

EN 29BJ2.4U/BJ2.5U PA 5.

POD stand by

Switch “on” all supplies by switching “low”

the ON-MODE I/O line.

Full SSB power and the display related supplies

become available

+8V6

detected within

2000ms after ON-MODE

toggle?

Yes

activate +8V6 supply

detection algorithm

Wait 2000ms to allow main supply to

deliver full power.

Enable audio protection algorithm

SDI PDP

Set?

Yes

These LVDS items are

SDI V3 display only !!

action holder: MIPS

action holder: St-by

autonomous action

+8V6 error

Switch “on” the LVDS output

the PNX2015 with a correct

clock frequency within 4s after

switching the POD and ON-

mode to prevent PDP display

supply protection.

PWR-OK-PDP

received within 5s after

POD and ONmode

toggle ?

Yes

Init SDI PDP

Switch LVDS back “off” if end

state is not the active state.

Log display error

and enter

protection mode

Power-up HDMI and 1394 hardware by putting

POWERDOWN-1394 GPIO 0 line “low”.

Enable Viper HW blocks (TM1, TM2, MBS, VMSP1 and

VMSP2) which were in powerdown mode.

Release PNX2015 reset

(AVIPs must be started before the MPIFs in order to have a good clock distribution). AVIP default power-up mode is Stand-by. The Viper instructs AVIP via I2C to enable all the PLLs and clocks and hence enter to Full Power mode.

initialize PNX2015 HD subsystem

Initialize MPIFs MPIF should deliver 4 observers: POR= 0; normal operation MSUP = 1: Main supply is present ASUP = 1; audio supply is present ROK = 1; reference frequency is present (coming from AVIP)

All observers present with correct state?

Yes

Initialize tuners and Hirate

Initialize source selection

appropriate Observer error

Initialize video processing ICs

- Spider (if available)

Initialize Columbus Initialize 3D Combfilter Initialize AutoTV

Semi-Stand-by

Figure 5-15 “POD Stand-by” to “Semi Stand-by” flowchart

F_15400_101.eps

230606

EN 30 BJ2.4U/BJ2.5U PA5.

Service Modes, Error Codes, and Fault Finding

Semi Stand by

Delay transition until ramping down of ambient light is

finished. *)

action holder: MIPS

action holder: St-by

autonomous action

Switch ambient light to passive mode with RGB

values on zero. *)

transfer Wake up reasons to the

Stand by µP.

Images are re-transferred to DDR-RAM from

Flash RAM (verification through checksum)

MIPS image completes the application reload,

stops DDR-RAM access, puts itself in a

sleepmode and signals the standby µP when the

standby mode can be entered.

DDR-RAM is put in self refresh mode and the images

are kept in the hibernating DDR-RAM.

Wait 5ms

Switch Viper in reset state

*) If this is not performed and the set is switched to standby when the ramping of the EPLD is still ongoing, the lights will remain lit in standby.

Important remark:

release reset audio and sound-

enable 10 sec after entering

standby to save power

Wait 10ms

Switch the NVM reset line HIGH.

Disable all supply related protections and switch off

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

Wait 5ms

switch off the remaining DC/DC converters

Switch OFF all supplies by switching HIGH the POD-

MODE and the ON-MODE I/O lines.

Stand by

For PDP this means CPUGO becomes low.

G_15960_133.eps

100306

Figure 5-16 “Semi Stand-by” to “Stand-by” flowchart

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