Philips 42PFL4606H Service manual

Colour Television Chassis

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TPM7.1E

Contents Page Contents Page

1. Revision List 2

2. Technical Specs, Diversity, and Connections 2

3. Precautions, Notes, and Abbreviation List 5

4. Mechanical Instructions 9

5. Service Modes, Error Codes, and Fault Finding 16

6. Alignments 25

7. Circuit Descriptions 27

8. IC Data Sheets 38

9. Block Diagrams Wiring diagram 32" 49 Wiring diagram 37" 50 Wiring diagram 42" 51 Wiring diagram 47" 52 Block Diagram 53

10. Circuit Diagrams and PWB Layouts Drawing PWB A01 715G4545 PSU 32" Adapter (A01) 54 56-57 Inverter (A02) 55 56-57 A01 715G4546 PSU 37", 42" and 47" 58 Power (A01) 58 60-61 Inverter (A02) 59 60-61 B 715G4481 SSB 62 POWER-1 (B01) 62 77-78 POWER-2 (B02) 63 77-78 TUNER (B03) 64 77-78 CI CARD/MT5135 (B04) 65 77-78 MT5395 BYPASS/TRAP. (B05) 66 77-78 MT5395 PERI/USB2.0 (B06) 67 77-78 DDR3 MEMORY (B07) 68 77-78 GPIO (B08) 69 77-78 FLASH/JTAG/UART/IR/RS232 (B09) 70 77-78 SCART1/Monitor OUT (B10) 71 77-78 YPBPR/VGA IN/SPDIF OUT (B11) 72 77-78 HDMI1/HDMI2/HDMI3 INPUT (B12) 73 77-78

Copyright 2011 Koninklijke Philips Electronics N.V. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.

AUDIO AMP/HEADPHONE OUT (B13) 74 77-78 LVDS OUTPUT (B14) 75 77-78 TCON CHIP (B15) 76 77-78 J 715G4958 IR Berlinale 79 IR/LED board (J) 79 80

11. Styling Sheets Dangerous 32" 81 Dangerous 37" - 42" 82 Dangerous 47" 83

Published by MB/SaS/WS 1168 BU TV Consumer Care, the Netherlands Subject to modification EN 3122 785 19091

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EN 2 TPM7.1E LA1.

Revision List

1. Revision List

Manual xxxx xxx xxxx.0

• First release.

Manual xxxx xxx xxxx.1

• Added models 42PFL4506H/12 to the manual

• Chapter 2: Added new models to Table 2-1

• Chapter 6: Updated table 6-2 Display code overview.

2. Technical Specs, Diversity, and Connections

Index of this chapter:

2.1 Technical Specifications

2.2 Directions for Use

2.3 Connections

2.4 Chassis Overview

Notes:

• Figures can deviate due to the different set executions.

• Specifications are indicative (subject to change).

2.1 Technical Specifications

For on-line product support please use the links in. Here is product information available, as well as getting started, user manuals, frequently asked questions and software & drivers.

Table 2-1 Described Model Numbers:

Model Number Styling Published in

32PFL4606H/12 32PFL4606H/58 32PFL4606H/60 37PFL4606H/12 37PFL4606H/58 37PFL4606H/60 42PFL4506H/12 42PFL4606H/12 42PFL4606H/58 42PFL4606H/60 47PFL4606H/12 47PFL4606H/58 47PFL4606H/60

Dangerous 3122 785 19090 Dangerous 3122 785 19090 Dangerous 3122 785 19090 Dangerous 3122 785 19090 Dangerous 3122 785 19090 Dangerous 3122 785 19090 Dangerous 3122 785 19091 Dangerous 3122 785 19090 Dangerous 3122 785 19090 Dangerous 3122 785 19090 Dangerous 3122 785 19090 Dangerous 3122 785 19090 Dangerous 3122 785 19090

2.2 Dir ections for Use

Directions for use can be downloaded from the following websites:

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

Note: The given Model Numbers are subject to change.

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2.3 Connections

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Technical Specs, Diversity, and Connections

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Note: The following connector colour abbreviations are used

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

2.3.1 Side Connections

1 - Common Interface

68p-See diagram

CI CARD/MT5135

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

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

Figure 2-1 Connection overview

. jk

/ 75 Ω jq

/ 10 kΩ jq

RMS

/ 10 kΩ jq

RMS

3 - USB2.0

Figure 2-2 USB (type A)

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

4 - Head phone (Output)

Bk -Head phone 80 - 600 Ω / 10 mW ot

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Technical Specs, Diversity, and Connections

5 - HDMI: Digital Video, Digital Audio - In

Figure 2-3 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 - Easylink/CEC Control channel jk 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

2.3.2 Rear Connections

6 - HDMI1: Digital Video, Digital Audio - In

See 5 - HDMI: Digital Video, Digital Audio - In

7 - Audio - In: Left / Right, VGA

Gn - Audio L/R in 0.5 V

/ 10 kΩ jq

RMS

8 - EXT2: Video YPbPr - In, Audio - In

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

/ 75 Ω jq

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

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Figure 2-4 SCART connector

1 -Audio R 0.5 V 2 -Audio R 0.5 V 3 -Audio L 0.5 V

/ 1 kΩ k

RMS

/ 10 kΩ j

RMS

/ 1 kΩ k

RMS

4 -Ground Audio G nd H 5 -Ground Blue Gnd H 6 -Audio L 0.5 V 7 -Video Blue/C-out 0.7 V 8 -Function Select 0 - 2 V: INT

/ 10 kΩ j

RMS

/ 75 Ω jk

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j 9 -Ground Green Gnd H 10 - n.c. 11 - Video Green 0.7 V

/ 75 Ω j

12 - n.c. 13 - Ground Red G nd H 14 - Ground P50 Gnd H 15 - Video Red/C 0.7 V 16 - Status/FBL 0 - 0.4 V: INT

/ 75 Ω j

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

/ 75 Ω k

/ 75 Ω j

11 - TV ANTENNA - In

Signal input from an antenna, cable or satellite.

12 - PC IN:VGA

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

RMS RMS

9 - Cinch: Audio - Out

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

RMS RMS

2.4 Chassis Overview

Refer to 9. Block Diagrams for PWB/CBA locations.

/ 10 kΩ jq / 10 kΩ jq

/ 10 kΩ kq / 10 kΩ kq

Figure 2-5 VGA connector

1 -Video Red 0.7 V 2 -Video Green 0.7 V 3 -Video Blue 0.7 V 4-n.c.

/ 75 Ω j

5 -Ground Gnd H 6 -Ground Red Gnd H 7 -Ground Green Gnd H 8 -Ground Blue Gnd H 9-+5V 10 - Ground Sync Gnd H

+5 V j

11 - Ground Red G nd H 12 - DDC_SDA DDC data j 13 - H-sync 0 - 5 V j 14 - V-sync 0 - 5 V j 15 - DDC_SCL DDC clock j

13 - Service / UART

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

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Precautions, Notes, and Abbreviation List

3. Precautions, Notes, and Abbreviation List

EN 5TPM7.1E LA 3.

Index of this chapter:

3.1 Safety Instructions

3.2 Warnings

3.3 Notes

3.4 Abbreviation List

3.1 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 MΩ and 12 MΩ.

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.

3.2 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.

3.3 Notes

3.3.1 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 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.

3.3.2 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 kΩ).

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

• 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 on the Philips Spare Parts Web Portal.

3.3.3 Spare Parts

For the latest spare part overview, consult your Philips Spare Part web portal.

3.3.4 BGA (Ball Grid Array) ICs

Introduction

For more information on how to handle BGA devices, visit this URL: http://www.atyourservice-magazine.com “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. Where applicable and available, this profile is added to the IC Data Sheet information section in this manual.

3.3.5 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. If lead-free solder paste is required, please contact the manufacturer of your soldering equipment. In general, use of solder paste within workshops should be avoided because paste is not easy to store and to handle.

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

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

• Mix of lead-free soldering tin/parts with leaded soldering tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If this cannot be avoided, carefully clear the solder-joint from old tin and re-solder with new tin.

3.3.6 Alternative BOM identification

It should be noted that on the European Service website, “Alternative BOM” is referred to as “Design variant”.

-9

), or pico-farads (p =× 10

. Select

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-6

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Precautions, Notes, and Abbreviation List

The third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific TV set. In general, it is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different suppliers. This will then result in sets which have the same CTN (Commercial Type Number; e.g. 28PW9515/12) but which have a different B.O.M. number. By looking at the third digit of the serial number, one can identify which B.O.M. is used for the TV set he is working with. If the third digit of the serial number contains the number “1” (example: AG1B033500001), then the TV set has been manufactured according to B.O.M. number 1. If the third digit is a “2” (example: AG2B0335000001), then the set has been produced according to B.O.M. no. 2. This is important for ordering the correct spare parts! For the third digit, the numbers 1...9 and the characters A...Z can be used, so in total: 9 plus 26= 35 different B.O.M.s can be indicated by the third digit of the serial number.

Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production centre (e.g. SN is Lysomice, RJ is Kobierzyce), 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 2010 week 10 / 2010 week 17). The 6 last digits contain the serial number.

Figure 3-1 Serial number (example)

3.3.7 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!

3.3.8 Practical Service Precautions

• It makes sense to avoid exposure to electrical shock.

While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard.

• Always respect voltages. While some may not be

dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.

3.4 Abbreviation List

0/6/12 SCART switch control signal on A/V

board. 0 = loop through (AUX to TV), 6 = play 16 : 9 format, 12 = play 4 : 3 format

AARA Automatic Aspect Ratio Adaptation:

algorithm that adapts aspect ratio to remove horizontal black bars; keeps the original aspect ratio

ACI Automatic Channel Installation:

algorithm that installs TV channels directly from a cable network by

means of a predefined TXT page ADC Analogue to Digital Converter AFC Automatic Frequency Control: control

signal used to tune to the correct

frequency AGC Automatic Gain Control: algorithm that

controls the video input of the feature

box AM Amplitude Modulation AP Asia Pacific AR Aspect Ratio: 4 by 3 or 16 by 9 ASF Auto Screen Fit: algorithm that adapts

aspect ratio to remove horizontal black

bars without discarding video

information ATSC Advanced Television Systems

Committee, the digital TV standard in

the USA ATV See Auto TV Auto TV A hardware and software control

system that measures picture content,

and adapts image parameters in a

dynamic way AV External Audio Video AVC Audio Video Controller AVIP Audio Video Input Processor B/G Monochrome TV system. Sound

carrier distance is 5.5 MHz BDS Business Display Solutions (iTV) BLR Board-Level Repair BTSC Broadcast Television Standard

Committee. Multiplex FM stereo sound

system, originating from the USA and

used e.g. in LATAM and AP-NTSC

countries B-TXT Blue TeleteXT C Centre channel (audio) CEC Consumer Electronics Control bus:

remote control bus on HDMI

connections CL Constant Level: audio output to

connect with an external amplifier CLR Component Level Repair ComPair Computer aided rePair CP Connected Planet / Copy Protection CSM Customer Service Mode CTI Color Transient Improvement:

manipulates steepness of chroma

transients CVBS Composite Video Blanking and

Synchronization DAC Digital to Analogue Converter DBE Dynamic Bass Enhancement: extra

low frequency amplification DCM Data Communication Module. Also

referred to as System Card or

Smartcard (for iTV). DDC See “E-DDC” D/K Monochrome TV system. Sound

carrier distance is 6.5 MHz DFI Dynamic Frame Insertion

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DFU Directions For Use: owner's manual DMR Digital Media Reader: card reader DMSD Digital Multi Standard Decoding DNM Digital Natural Motion DNR Digital Noise Reduction: noise

reduction feature of the set DRAM Dynamic RAM DRM Digital Rights Management DSP Digital Signal Processing DST Dealer Service Tool: special remote

control designed for service

technicians DTCP Digital Transmission Content

Protection; A protocol for protecting

digital audio/video content that is

traversing a high speed serial bus,

such as IEEE-1394 DVB-C Digital Video Broadcast - Cable DVB-T Digital Video Broadcast - Terrestrial DVD Digital Versatile Disc DVI(-d) Digital Visual Interface (d= digital only) E-DDC Enhanced Display Data Channel

(VESA standard for communication

channel and display). Using E-DDC,

the video source can read the EDID

information form the display. EDID Extended Display Identification Data

(VESA standard) EEPROM Electrically Erasable and

Programmable Read Only Memory EMI Electro Magnetic Interference EPG Electronic Program Guide EPLD Erasable Programmable Logic Device EU Europe EXT EXTernal (source), entering the set by

SCART or by cinches (jacks) FDS Full Dual Screen (same as FDW) FDW Full Dual Window (same as FDS) FLASH FLASH memory FM Field Memory or Frequency

Modulation FPGA Field-Programmable Gate Array FTV Flat TeleVision Gb/s Giga bits per second G-TXT Green TeleteXT H H_sync to the module HD High Definition HDD Hard Disk Drive HDCP High-bandwidth Digital Content

Protection: A “key” encoded into the

HDMI/DVI signal that prevents video

data piracy. If a source is HDCP coded

and connected via HDMI/DVI without

the proper HDCP decoding, the

picture is put into a “snow vision” mode

or changed to a low resolution. For

normal content distribution the source

and the display device must be

enabled for HDCP “software key”

decoding. HDMI High Definition Multimedia Interface HP HeadPhone I Monochrome TV system. Sound

C Inter IC bus

D Inter IC Data bus

S Inter IC Sound bus

carrier distance is 6.0 MHz

IF Intermediate Frequency IR Infra Red IRQ Interrupt Request ITU-656 The ITU Radio communication Sector

(ITU-R) is a standards body

subcommittee of the International

Telecommunication Union relating to

radio communication. ITU-656 (a.k.a.

SDI), is a digitized video format used for broadcast grade video. Uncompressed digital component or digital composite signals can be used. The SDI signal is self-synchronizing, uses 8 bit or 10 bit data words, and has a maximum data rate of 270 Mbit/s, with a minimum bandwidth of 135 MHz.

iTV Institutional TeleVision; TV sets for

hotels, hospitals etc.

LS Last Status; The settings last chosen

by the customer and read and stored in RAM or in the NVM. They are called at start-up of the set to configure it according to the customer's

preferences LATAM Latin America LCD Liquid Crystal Display LED Light Emitting D iode L/L' Monochrome TV system. Sound

carrier distance is 6.5 MHz. L' is Band

I, L is all bands except for Band I LPL LG.Philips LCD (supplier) LS Loudspeaker LVDS Low Voltage Differential Signalling Mbps Mega bits per second M/N Monochrome TV system. Sound

carrier distance is 4.5 MHz MHEG Part of a set of international standards

4. Mechanical Instructions

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Index of this chapter:

4.1 Cable Dressing

4.2 Service Positions

4.3 Assembly/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.

Figure 4-1 Cable dressing 32"

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Figure 4-2 Cable dressing 37"

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Figure 4-3 Cable dressing 42"

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4.2 Service Positions

For easy servicing of a TV set, the set should be put face down on a soft flat surface, foam buffers or other specific workshop tools. Ensure that a stable situation is created to perform measurements and alignments. When using foam bars take care that these always support the cabinet and never only the display. Caution: Failure to follow these guidelines can seriously damage the display! Ensure that ESD safe measures are taken.

4.3 Assembly/Panel Removal

Instructions below apply to the 32PFL4606H/12, but will be similar for other models except 47PFL4606H/xx.

4.3.1 Rear Cover

Refer to Figure 4-5 Warning: Disconnect the mains power cord before removing the rear cover.

1. Remove fixation screws [1] that secure the base assy, pull out the base assy from the set. Then remove the fixation screws [2], [3], [4] that secure the rear cover. Refer to

Figure 4-5

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

and Figure 4-6 for details.

Figure 4-4 Cable dressing 47"

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M4 × 10

M3 × 8

2 × 11

3 × 24

Mechanical Instructions

Figure 4-5 Rear cover removal 32"

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M4 × 10

M3 × 8

2 × 11

3 × 24

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Figure 4-6 Rear cover removal 47"

4.3.2 Small Signal Board (SSB)

Refer to Figure 4-7 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.

1. Release the clips from both the LVDS Flat Foil connectors that connect with the SSB [1]. Caution: be careful, as these are very fragile connectors! Take the flat foils out of their connectors.

2. Release the clamps and unplug all other connectors [2].

3. Release the tape [3] near the bottom side of the set from the LCD panel.

4. Remove the fixation screw from the clamp near the bottom of the SSB, and take the clamp out [4].

5. Remove all other fixation screws from the SSB [5].

6. Take out the SSB together with its shielding.

7. Remove the screw near the L/R audio connectors [6].

8. The SSB can now be shifted from the side connector cover, then lifted and taken out of the shielding [6]. Refer to

Figure 4-8

and Figure 4-8 for details.

for details.

Figure 4-7 SSB removal [1/2]

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Stand bracket

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4.3.5 Speakers

1. Unplug speaker connector from the SSB.

2. Remove the SSB as described earlier.

3. Remove the PSU as described earlier.

4. Remove the Stand bracket as described earlier.

5. Release tapes from the speaker cables.

6. Take the speakers out. When defective, replace both units.

4.3.6 IR/LED/Keyboard

Figure 4-8 SSB removal [2/2]

4.3.3 Power Supply Unit (PSU)

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 PSU.

1. Release the Power board cables from their clamps.

2. Unplug power connectors from the SSB, as it is not unplug-able at the PSU itself (soldered connector).

3. Unplug all other connectors from the PSU.

4. Remove all fixation screws from the PSU.

5. The PSU can be taken out of the set now.

4.3.4 Stand bracket removal

Refer to Figure 4-9 Caution: it is mandatory to remount all different screws at their original position during re-assembly. Be sure to put the set in the Service Position.

1. Remove the fixation screws [1], [2].

2. Take the Stand bracket out.

for details.

Refer to Figure 4-10

1. Remove the stand bracket as described earlier.

2. Release the connectors [1] from the IR/LED/Keyboard.

3. Caution: The board is fitted to the bezel by double sided tape!

4. Use the slot type screw driver to detach the IR/LED/Keyboard from the bezel. Be careful not to damage the bezel. Refer to Figure 4-10

5. Carefully remove any of the tape residue from the bezel.

When defective, replace the whole unit.

Figure 4-10 IR/LED/Keyboard removal

Caution: The touch control function needs to be checked when

it is replaced.

1. Use test finger with a 8 m.m. diameter to touch centre of key icon on front cover.

2. Press touch key sensitivity test hot key “0 6 2 5 9 0 MENU”, check the sensitivity count value of each key (CH +/-, HOME, VOL +/-), when touching key icon on front cover. Refer to Figure 4-11

3. The value count of each key should be over 100.

for details.

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Figure 4-9 Stand bracket removal

Figure 4-11 Check touch control

4.3.7 LCD Panel

Refer to Figure 4-12

1. Remove the SSB as described earlier.

2. Remove the PSU as described earlier.

3. Remove the stand bracket as described earlier.

4. Remove the speakers as described earlier.

5. Release the tapes from the cables of the IR/LED/KEY board.

6. Release the clips from both the LVDS flat foil connectors [1]. Caution: be careful, as these are very fragile cables and connectors! Take the flat foils out of their connectors.

for details.

7. Remove the fixation screws [2] at the bottom left of the

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3 3

panel that secure the LCD panel with the bezel. Remove metal clip from its position. Be careful not to break the clicks that secure the metal brackets.

8. Remove the other fixation screws [3] and [4].

9. Lift the LCD Panel from the bezel. When defective, replace the whole unit.

Figure 4-12 LCD panel removal

Mechanical Instructions

EN 15TPM7.1E LA 4.

4.4 Set Re-assembl y

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 4-1

Figure 4-4

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

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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 Software Upgrading

5.6 Error Codes

5.7 The Blinking LED Procedure

5.8 Fault Finding and Repair Tips

5.1 Test Points

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

Perform measurements under the following conditions:

• Service Default Mode.

• Video: Colour bar signal.

• Audio: 3 kHz left, 1 kHz right.

5.2 Service Modes

The Service Mode feature is split into four parts:

• Service Default Mode (SDM).

• Service Alignment Mode (SAM).

• Customer Service Mode (CSM).

• Computer Aided Repair Mode (ComPair).

SDM and SAM offer features, which can be used by the Service engineer to repair/align a TV set. Some features are:

• A pre-defined situation to ensure measurements can be made under uniform conditions (SDM).

• Activates the blinking LED procedure for error identification when no picture is available (SDM).

• Make alignments (e.g. White Tone), reset the error buffer (SAM).

• Display information (“SDM” or “SAM” indication in upper right corner of screen, error buffer, software version, operating hours, options and option codes, sub menus).

The CSM is a Service Mode that can be enabled by the consumer. The CSM displays diagnosis information, which the customer can forward to the dealer or call centre. In CSM mode, “CSM”, is displayed in the top right corner of the screen. The information provided in CSM and the purpose of CSM is to:

• Increase the home repair hit rate.

• Decrease the number of nuisance calls.

• Solved customers’ problem without home visit.

5.2.1 General

Next items are applicable to all Service Modes or are general.

Life Timer

During the life time cycle of the TV set, a timer is kept (called “Op. Hour”). It counts the normal operation hours (not the Stand-by hours). The actual value of the timer is displayed in SDM and SAM in a decimal value. Every two soft-resets increase the hour by + 1. Stand-by hours are not counted.

Software Identification, Version, and Cluster

The software ID, version, and cluster will be shown in the main menu display of SDM, SAM, and CSM. The screen will show: “AAAAAB X.YY”, where:

• AAAAA is the chassis name.

• B is the region indication: E = Europe, A = AP/China, U = NAFTA, L = LATAM.

• X is the main version number: this is updated with a major change of specification (incompatible with the previous software version). Numbering will go from 01 - 99 and AA - ZZ.

- If the main version number changes, the new version number is written in the NVM.

- If the main version number changes, the default settings are loaded.

• YY is the sub version number: this is updated with a minor change (backwards compatible with the previous versions). Numbering will go from 00 - 99.

- If the sub version number changes, the new version number is written in the NVM.

- If the NVM is fresh, the software identification, version, and cluster will be written to NVM.

Display Option Code Selection

When after an SSB or display exchange, the display option code is not set properly, it will result in a TV with “no display”. Therefore, it is required to set this display option code after such a repair. To do so, press the following key sequence on a standard RC transmitter: “062598” directly followed by MENU and “xxx”, where “xxx” is a 3 digit decimal value of the panel type: see column “Display Code” in Table 6-2

, or see sticker on the side/bottom of the cabinet. When the value is accepted and stored in NVM, the set will switch to Stand-by, to indicate that the process has been completed.

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ComPair Mode is used for communication between a computer and a TV on I

C /UART level and can be used by a Service engineer to quickly diagnose the TV set by reading out error codes, read and write in NVMs, communicate with ICs and the μP (PWM, registers, etc.), and by making use of a fault finding database. It will also be possible to up and download the software of the TV set via I

C with help of ComPair. To do this, ComPair has to be connected to the TV set via the ComPair connector, which will be accessible through the rear of the set (without removing the rear cover).

Note: For the new model range, a new remote control (RC) is used with some renamed buttons. This has an impact on the activation of the Service modes. For instance the old “MENU” button is now called “HOME” (or is indicated by a “house” icon).

Figure 5-1 Location of Display Option Code sticker

During this algorithm, the NVM-content must be filtered, because several items in the NVM are TV-related and not SSB related (e.g. Model and Prod. S/N). Therefore, “Model” and “Prod. S/N” data is changed into “See Type Plate”. In case a call centre or consumer reads “See Type Plate” in CSM mode, he needs to look to the side/bottom sticker to identify the set, for further actions.

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5.2.2 Service Default Mode (SDM)

Purpose

Set the TV in SDM mode in order to be able to create a predefined setting for measurements to be made. In this platform, a simplified SDM is introduced (without protection override and without tuning to a predefined frequency).

Specifications

• Set linear video and audio settings to 50%, but volume to 25%. Stored user settings are not affected.

• All service-unfriendly modes (if present) are disabled, since they interfere with diagnosing/repairing a set. These service unfriendly modes are: – (Sleep) timer. – Blue mute/Wall paper. – Auto switch “off” (when there is no “input” signal). – Hotel or hospital mode. – Child lock or parental lock (manual or via V-chip). – Skipping, blanking of “Not favourite”, “Skipped” or

“Locked” presets/channels.

– Automatic storing of Personal Preset or Last Status

settings.

– Automatic user menu time-out (menu switches

back/OFF automatically.

– Auto Volume levelling (AVL).

How to Activate SDM

To activate SDM, use the following methods:

• Press the following key sequence on the RC transmitter: “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.

After activating this mode, “SDM” will appear in the upper left corner of the screen (when a picture is available).

On Screen Menu

After activating SDM, the following items are displayed, with “SDM” in the upper right corner of the screen to indicate that the television is in Service Default Mode. Menu items and explanation:

• xxxxx Operating hours (in decimal).

• AAAAAB X.YY See paragraph Software Identification, Version, and Cluster for the SW name definition.

• ERR Shows all errors detected since the last time the buffer was erased in format <xxx> <xxx> <xxx> <xxx> <xxx> (five errors possible).

• OP Used to read-out the option bytes. Ten codes (in two rows) are possible.

• Command MENU from the user remote will enter the normal user menu (brightness, contrast, color, etc...) with “SDM” OSD remaining, and pressing MENU key again will return to the last status of SDM again.

• To prevent the OSD from interfering with measurements in SDM, command “OSD” or “i+” (“STATUS” or “INFO” for NAFTA and LATAM) from the user remote will toggle the OSD “on/off” with “SDM” OSD remaining always “on”.

• Press the following key sequence on the remote control transmitter: “062596” directly followed by the OK button to switch to SAM (do not allow the display to time out between entries while keying the sequence). Remarks: new RC will not have I+ button, but function still remains.

How to Exit SDM

• Switch the set to “Stand-by” by pressing the standby button on the remote control transmitter or on the television set.

• Via a standard customer RC-transmitter: key in “00”-sequence. Note: If the TV is switched “off” by a power interrupt while in SDM, the TV will show up in the last status of SDM menu as soon as the power is supplied again. The error buffer will not be cleared.

5.2.3 Service Alignment Mode (SAM)

Purpose

• To modify the NVM.

• To display/clear the error code buffer.

• To perform alignments.

Specifications

• Operation hours counter (maximum five digits displayed).

• Software version, error codes, and option settings display.

• Error buffer clearing. Option settings.

•

• Software alignments (White Tone).

• NVM Editor.

• Set screen mode to full screen (all content is visible).

How to Activate SAM

To activate SAM, use one of the following methods:

• Press the following key sequence on the remote control transmitter: “062596”, directly followed by the “OK” button. Do not allow the display to time out between entries while keying the sequence.

• Or via ComPair.

After entering SAM, the following items are displayed, with “SAM” in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.

Figure 5-2 SDM menu

How to Navigate

As this mode is read only, there is not much to navigate. To switch to other modes, use one of the following methods:

Figure 5-3 Example of SAM

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Table 5-1 SAM mode overview

Main Menu Sub-menu 1 Sub-menu 2 Description

System Information Op Hour This represents the life timer. The time r counts normal operatio n hours, but does not co unt

Main SW ID e.g. “TPM71E 1.084C” See paragraph Software Identification, Version, and Cluster for the SW name definition. ERR e.g. “000 000 000 000 000” Shows all errors detected since the last time the buffer was erased. Five errors possible. OP1 e.g. “012 007 208 002 184 032 007 030” Used to read-out the option bytes. See paragraph 6.4 Option Settings in the Alignments OP2 e.g. “056 023 000 106 064 000 000 122”

Clear Press [OK] to clean the Error

RGB Align Warm R Gain To align the White Tone. See

NVM editor Address Select and fill the NVM address

Upload to USB Copy Channel List to USB To upload several settings from the TV to an USB stick

Download from USB Copy Channel List from USB To download several settings from the USB stick to the TV

Initialize NVM Press [OK] to Initialize NVM

EDID Write Enable Press [OK] to enable EDID

Service Data Type Number Press [OK] use key pad edit type

Clear OAD Version Press [OK] to clean OAD

Codes immediately

G Gain B Gain

Normal R Gain

Cool R Gain

Store Store the RGB value

Value Select and fill the NVM value Store Store the value in the address

Copy NVM to USB Copy Readable Info to USB Copy Edid to USB

Copy NVM from USB Copy Readable Info from USB Copy Edid from USB

immediately

writable immediately

Production Number Pre ss [OK] use key pad e dit p roducti on

12NC SSB Press [OK] use key pad edit SSB

12NC PSU Press [OK] use key pad edit PSU

12NC Display Press [OK] use key pad edit display

Version immediately

G Gain B Gain

number immediately

immediately

Stand-by hours.

section for a detailed description. Ten codes are possible. Erases the contents of the error buff er. Select this me nu item and press th e MENU RIGHT

key on the remote control. The content of the error buffer is cleared.

paragraph 6.3 Software Alignmen ts in the Alignments section for a detailed description

To initialize a (corrupted) NVM. Be careful, this will erase all settings.

Enable EDID writable

Use Key pad to edit several service data

Clean OAD Version

How to Navigate

• In the SAM menu, select menu items with the UP/DOWN keys on the remote control transmitter. The selected item will be indicated. When not all menu items fit on the screen, use the UP/DOWN keys to display the next/previous menu items.

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

• When you press the MENU button twice while in top level SAM, the set will switch to the normal user menu (with the SAM mode still active in the background). To return to the SAM menu press the MENU button.

• The “INFO [i+]” key from the user remote will toggle the OSD “on/off” with “SAM” OSD remaining always “on”.

• Press the following key sequence on the remote control transmitter: ì062596î directly followed by the MENU button to switch to SDM (do not allow the display to time out between entries while keying the sequence). Remarks: new RC will not have I+ button, but function still remain.

How to Store SAM Settings

To store the settings changed in SAM mode (except the RGB ALIGN settings), leave the top level SAM menu by using the POWER button on the remote control transmitter or the

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television set. The mentioned exceptions must be stored separately via the STORE button.

How to Exit SAM

Use one of the following methods:

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

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

Note: When the TV is switched “off” by a power interrupt while in SAM, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.

5.2.4 Customer Service Mode (CSM)

Purpose

The Customer Service Mode shows error codes and information on the TV’s operation settings.The call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set.This helps the call centre to diagnose problems and failures in the TV set before making a service call. The CSM is a read-only mode; therefore, modifications are not possible in this mode.

Specifications

• Ignore “Service unfriendly modes”.

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• Line number for every line (to make CSM language independent).

• Set the screen mode to full screen (all contents on screen is visible).

• After leaving the Customer Service Mode, the original settings are restored.

• Possibility to use “CH+” or “CH-” for channel surfing, or enter the specific channel number on the RC.

How to Activate CSM

To activate CSM, press the following key sequence on a standard remote control transmitter: “123654” (do not allow the display to time out between entries while keying the sequence). After entering the Customer Service Mode, the following items are displayed.

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

• 1.4 Option Code 1 Gives the option codes of option group 1 as set in SAM.

• 1.5 Option Code 2 Gives the option codes of option group 2 as set in SAM.

• 1.6 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. This identification number is the 12NC number of the SSB.

• 1.7 Display Displays the 12NC of the display.

• 1.8 PSU Displays the 12NC of the PSU.

• 2.1 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.

• 2.2 Standby SW Displays the built-in stand-by processor software version. Upgrading this software will be possible via USB.

• 2.3 Panel Code Displays the Display Code number.

• 2.4 NVM version Detects and displays NVM version.

• 3.1 Signal Quality/Present Analogue/digital signal strength.

• 3.2 Child lock Not active/active. This is a combined item for locks. If any lock (channel lock, parental lock) is active, the item shall show “active”.

• 3.3 HDCP keys 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.

Figure 5-4 CSM Menu [1/3]

Figure 5-5 CSM Menu [2/3]

Figure 5-6 CSM Menu [3/3]

How to Navigate

By means of the “CURSOR-DOWN/UP” knob (or the scroll wheel) on the RC-transmitter, can be navigated through the menus.

Exit CSM

How to

To exit CSM, use one of the following methods.

• Press the MENU/HOME button on the remote control transmitter.

• Press the POWER button on the remote control transmitter.

• Press the POWER button on the television set.

Contents of CSM

• 1.1 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.

• 1.2 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.

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

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Power Off

Standby Soft Mode

Power On

Semi- Standby

Standby

Switch

Off(Mains Power Plug)

Standby Soft Mode Command Received, previously in Standby

Soft Mode (Power tact switch)

TV Wakeup commands Received (TV Wakeup keys)

Digital background tasks started

Digital background tasks completed

Swith On, previously in

Standby/Semi- Standby (Mains Power Plug)

Standby Soft Mode

Command Received (Power tact

switch)

Switch Off (Mains Power Plug)

Switch Off

(Mains Power Plug)

Swith On, previously in Standby Soft Mode (Mains Power Plug)

Standby commands

Received (RC

Standby key)

Standby Soft Mode

Command Received, previously in Standby Soft Mode (Power tact switch)

TV Wakeup commands Received (TV Wakeup keys)

Switch On, previously in Power On Mode (Power tact switch)

Standby Soft Mode Command Received, (Power tact switch)

Switch Off (Mains Power Plug)

Swith On,previously in TV Operation Mode (Mains Power Plug)

5.3 Stepwise Start-up

Service Modes, Error Codes, and Fault Finding

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Figure 5-7 Stepwise Start-up

Service Modes, Error Codes, and Fault Finding

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5.4 Service Tools

5.4.1 ComPair

Introduction

ComPair (Computer Aided Repair) is a Service tool for Philips Consumer Electronics products. and offers the following:

1. ComPair helps to quickly get an understanding on how to repair the chassis in a short and effective way.

2. ComPair allows very detailed diagnostics and is therefore capable of accurately indicating problem areas. No knowledge on I because ComPair takes care of this.

3. ComPair speeds up the repair time since it can automatically communicate with the chassis (when the microprocessor is running correctly) and all repair information is directly available.

4. ComPair features TV software up possibilities.

Specifications

ComPair consists of a Windows based fault finding program and an interface box between PC and the (defective) product. The ComPair II interface box is connected to the PC via an USB cable. For the TV chassis, the ComPair interface box and the TV communicate via a bi-directional cable via the service connector(s). The ComPair fault finding program is able to determine the problem of the defective television, by a combination of automatic diagnostics and an interactive question/answer procedure.

How to Connect

This is described in the chassis fault finding database in ComPair.

C or UART commands is necessary,

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

Additional cables for VCOM Alignment

• ComPair/I2C interface cable: 3122 785 90004.

• ComPair/VGA adapter cable: 9965 100 09269.

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

5.5 Software Upgrading

5.5.1 Description

It is possible for the user to upgrade the main software via the USB port. This allows replacement of a software image in a stand alone set. A description on how to upgrade the main software can be found in the DFU or on the Philips website.

5.5.2 Introduction

Philips continuously tries to improve its products, and it’s recommend that the TV software is updated when updates are available. Software update files can be obtained from the dealer or can be downloaded from the following websites:

http://www.philips.com/support

Preparing a portable memory for software upgrade

The following requirements have to be met:

1. A personal computer connected to the Internet.

2. An archive utility that supports the ZIP-format (e.g. WinZip for Windows or Stufflt for Mac OS).

3. A USB flash drive (preferably empty).

Figure 5-8 ComPair II interface connection

Caution: It is compulsory to connect the TV to the PC as

shown in the picture above (with the ComPair interface in between), as the ComPair interface acts as a level shifter. If one connects the TV directly to the PC (via UART), ICs can be blown!

Note:

1. Only FAT/DOS-formatted flash drives are supported.

2. Only use software update files that can be found on the

http://www.philips.com/support

web site.

5.5.3 Check the current TV software version

Before starting the software upgrade procedure, it is advised to check that what the current TV software:

1. Press the “123654” button on the remote control to enter the CSM mode.

2. Use the up/down cursor keys to select “Current Main Software”.

If the current software version of the TV is the same as the latest update file found on http://www.philips.com/support not necessary to update the TV software.

5.5.4 Download the latest software

1. Point the web browser to http://www.philips.com/support

2. Find information and software related to the TV.

3. Select the latest software update file and download it to the PC.

4. Insert a USB flash drive into one of the USB ports of the PC.

5. Decompress the downloaded ZIP file and copy the “autorun.upg” to the root directory of the USB flash drive.

5.5.5 Update the TV software

, it is

How to Order

ComPair II order codes:

• ComPair II interface: 3122 785 91020.

• Software is available via the Philips Service web portal.

• ComPair UART interface cable for TPM7.1x xx. (using DB9 to 2mm pitch JST connector): 3122 785 90630.

1. Insert mains power and wait for system to boot completely.

2. Insert the USB flash drive that contains the software update files.

3. The TV will detect the USB flash drive automatically. Then a window jumps out as Figure 5-9

. Note: If the USB flash drive is not detected after power up, disconnect it and re-insert it.

4. Select [Update] and press OK. See Figure 5-9

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5. To proceed, In next menu select [Start] and press OK to start software updates. See Figure 5-10

6. Upgrading will now begins and the status of the updating progress will be displayed.

7. When the TV software is updated. Remove your USB flash drive, then select [Restart] and press OK to restart the TV.See Figure 5-11

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Figure 5-9 Update the TV software [1/3]

Figure 5-10 Update the TV software [2/3]

5.5.6 Content and Usage of the One-Zip Software File

Below you find a content explanation of the One-Zip file, and instructions on how and when to use it. Only files that are relevant for Service are mentioned here.

• EDID_clustername.zip: Contains the EDID content of the different EDID NVMs. See ComPair for further instructions.

• FUS_clustername_version.zip: Contains the “autorun.upg” which is needed to upgrade the TV main software and the software download application.

• NVM_clustername_version.zip: Default NVM content. Must be programmed via ComPair.

5.5.7 How to Copy NVM Data to/from USB

When copying data to and from a USB memory stick, the folder “repair” is used. When inserting an empty USB memory stick, and downloading data to the stick, the TV will create this folder. When sending data from a USB memory stick to a TV, the intended data must be available in the “repair” folder. Note that when copying EDID data to the TV, all necessary EDID files must be in this folder. Service mode overview for your reference.

Table 5-2 Service mode overview

Service Modes Description

USB SW upgradeable

SW-upgrading of flash memories MTK-chips MT5395 can be done via USB. The main SW can be upgraded via Autorun.upg

NVM-Editor in SAM

NVM-editor will function as in the past: Address and Value field is a decimal value via digit entry

Service Data New Service data in SAM for CTN, Prod.

no., 12NC programming with virtual key board

USB copy/paste in SAM

Channel list, NVM data, Readable info, EDID

UART logging There will be printout available in UART. No

specifications of the printout, per MTK provision/definition.

Vcom flicker alignment

“147852” + “OK” (for flickering adjustment). TV to be put to external source other than TV, then adjust with arrow up/down and Left right, the Vcom value in the display will change with the arrow key, one adjusted, press OK and then press menu to exit

Tcon NVM

“42662” + “OK” default & Programmer default loading

Figure 5-11 Update the TV software [3/3]

Note:

• Do not remove the USB flash drive during the software update.

• If a power failure occurs during the update, do not remove the USB flash drive from the TV. The TV will continue the software update as soon as the power comes up again.

• If an error occurs during the update retry the procedure or contact the dealer.

• We do not recommend downgrading to an older version.

• Once the upgrade is finished, use the PC to remove the TV software from the USB portable memory.

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5.5.8 How to Copy NVM Data to/from USB

Write NVM Data to USB

1. Insert the USB stick into the USB slot while in SAM mode.

2. Execute the command "NVM Copy" > "NVM Copy to USB", to copy the NVM data to the USB stick. The NVM filename on the USB stick will be named "TPM71E_NVM_T2U.BIN" (this takes a couple of seconds).

Write NVM Data to TV

1. First, ensure (via a PC) that the filename on the USB stick has the correct format: "TPM71E_NVM_U2T.BIN".

2. Insert the USB stick into the USB slot while in SAM mode.

3. Execute the command "NVM Copy" > "NVM Copy from USB" to copy the USB data to NVM (this takes about a minute to complete).

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To write an NVM mask to the TV, ensure that the mask has the correct format: "TPM71E_NVM_U2T.MAK" (0x00 to write protect, 0xFF to overwrite). Important: The file must be located in the "/Repair" directory of the USB stick.

5.5.9 How to Copy EDID Data to/from USB

Write EDID Data to USB

1. Insert the USB stick into the USB slot while in SAM mode.

2. Execute the command "NVM Copy" > "EDID Copy to USB", to copy the EDID data to the USB stick. The filename on the USB stick will be named "TPM71E_EDID_T2U.BIN" (this takes a couple of seconds).

Write EDID Data to TV

1. First, ensure (via a PC) that the filename on the USB stick has the correct format: "TPM71E_EDID_U2T.BIN".

2. Insert the USB stick into the USB slot while in SAM mode.

3. Execute the command "NVM Copy" > "EDID Copy from USB" to copy the USB data to EDID (this takes about a minute to complete).

Important: The file must be located in the "/Repair" directory of the USB stick.

5.5.10 How to Copy the Channel List to/from USB

Write Channel List Data to USB

1. Insert the USB stick into the USB slot while in SAM mode.

2. Execute the command "Channel list Copy to USB", to copy the channel list data to the USB stick. The filename on the USB stick will be named "TPM71E_CHTB_T2U.BIN" (this takes a couple of seconds).

• Error 000: No problem.

• Error 011: I not start up due to the blocked bus.

• Error 012: Tuner error. There is no I

C bus error. When this error occurs, the TV will

C communication

towards the tuner after start-up.

• Error 013: Panel VCC error. This voltage is made in the power supply and results in protection in case of absence.

5.6.2 How to Clear the Error Buffer

You can read the error buffer in three ways:

• On screen via the SAM/SDM/CSM (if you have a picture). Example: – ERROR: 0 0 0 0 0: No errors detected. – ERROR: 6 0 0 0 0: Error code 6 is the last and only

detected error.

– ERROR: 9 6 0 0 0: Error code 6 was detected first and

error code 9 is the last detected (newest) error.

• Via the blinking LED procedure (when you have no picture). See paragraph

5.7 The Blinking LED Procedure

•Via ComPair.

5.6.3 Error codes

Errors code information:

• Error 000: No problem.

• Error 011: I not start up due to the blocked bus.

• Error 012: Tuner error. There is no I

C bus error. When this error occurs, the TV will

C communication

towards the tuner after start-up.

• Error 013: Panel VCC error. This voltage is made in the power supply and results in protection in case of absence.

5.6.4 How to Clear the Error Buffer

Write Channel List Data to TV

1. First, ensure (via a PC) that the filename on the USB stick has the correct format: "TPM71E_CHTB_U2T.BIN".

2. Insert the USB stick into the USB slot while in SAM mode.

3. Execute the command "Chanel list Copy from USB" to copy the USB data to the TV (this takes about a minute to complete).

Important: The file must be located in the "/Repair" directory of the USB stick.

5.6 Error Codes

5.6.1 Introduction

Error codes are required to indicate failures in the TV set. In principle a unique error code is available for every.

• Activated (SW) protection.

• Failing I

• General I

The last five errors, stored in the NVM, are shown in the Service menu’s. This is called the error buffer. The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right. An error will be added to the buffer if this error differs from any error in the buffer. The last found error is displayed on the left. An error with a designated error code never leads to a deadlock situation. It must always be diagnosable (e.g. error buffer via OSD or blinking LED or via ComPair). In case a failure identified by an error code automatically results in other error codes (cause and effect), only the error code of the MAIN failure is displayed.

Errors code information:

C device.

C error.

The error code buffer is cleared in the following cases:

• By using the CLEAR command in the SAM menu.

• By using the following key sequence on the remote control transmitter: “062599” directly followed by the OK button.

• If the contents of the error buffer have not changed for 50 hours, the error buffer resets automatically.

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

5.7 The Blinking LED Procedure

5.7.1 Introduction

The software is capable of identifying different kinds of errors. Because it is possible that more than one error can occur over time, an error buffer is available, which is capable of storing the last five errors that occurred. This is useful if the OSD is not working properly. Errors can also be displayed by the blinking LED procedure. The method is to repeatedly let the front LED pulse with as many pulses as the error code number, followed by a period of

1.5 seconds in which the LED is “off”. Then this sequence is

repeated. Example (1): error code 4 will result in four times the sequence LED “on” for 0.25 seconds / LED “off” for 0.25 seconds. After this sequence, the LED will be “off” for 1.5 seconds. Any RC command terminates the sequence. Error code LED blinking is in red color. Example (2): the content of the error buffer is “12 9 6 0 0” After entering SDM, the following occurs.

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

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

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

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

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

• The sequence starts again with 12 short blinks.

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Service Modes, Error Codes, and Fault Finding

5.7.2 Displaying the Entire Error Buffer

Additionally, the entire error buffer is displayed when Service Mode “SDM” is entered.

5.8 Fault Finding and Repair Tips

Note:

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

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

5.8.1 NVM Editor

In some cases, it can be convenient if one directly can change the NVM contents. This can be done with the “NVM Editor” in SAM mode. With this option, single bytes can be changed.

Caution:

• Do not change these, without understanding the function of each setting, because incorrect NVM settings may seriously hamper the correct functioning of the TV set!

• Always write down the existing NVM settings, before changing the settings. This will enable you to return to the original settings, if the new settings turn out to be incorrect.

5.8.2 Load Default NVM Values

5.8.9 Display option code

Attention: In case the SSB is replaced, always check the Display Code in CSM, even when picture is available. Performance with the incorrect display option code can lead to unwanted side-effects for certain conditions.

It is possible to upload the default values to the NVM with ComPair in case the SW is changed, the NVM is replaced with a new (empty) one, or when the NVM content is corrupted. After replacing an EEPROM (or with a defective/no EEPROM), default settings should be used to enable the set to start-up and allow the Service Default Mode and Service Alignment Mode to be accessed.

5.8.3 No Picture

When you have no picture, first make sure you have entered the correct display code. See paragraph 6.4 Option Settings the instructions. See also Table 6-2

5.8.4 Unstable Picture via HDMI input

Check (via ComPair) if HDMI EDID data is properly programmed.

5.8.5 No Picture via HDMI input

Check if HDCP key is valid. This can be done in CSM.

5.8.6 TV Will Not Start-up from Stand-by

Possible Stand-by Controller failure. Re-flash the software.

5.8.7 CSM

for

When CSM is activated and there is a USB memory stick connected to the TV, the software will dump the complete CSM content to the USB memory stick. The file (Csm.txt) will be saved in the root of the USB memory stick.

5.8.8 Loudspeakers

Make sure that the volume is set to minimum during disconnecting the speakers in the ON-state of the TV. The audio amplifier can be damaged by disconnecting the speakers during ON-state of the set!

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6. Alignments

Alignments

EN 25TPM7.1E LA 6.

Index of this chapter:

6.1 General Alignment Conditions

6.2 Hardware Alignments

6.3 Software Alignments

6.4 Option Settings

6.5 Reset of Repaired SSB

6.1 General Alignmen t Co nd it io n s

Perform all electrical adjustments under the following conditions:

• Power supply voltage: 90 - 264 V

, 50/ 60 ± 3 Hz.

• Connect the set to the mains via an isolation transformer with low internal resistance.

• Allow the set to warm up for approximately 15 minutes.

• Measure voltages and waveforms in relation to correct ground (e.g. measure audio signals in relation to AUDIO_GND). Caution: It is not allowed to use heat sinks as ground.

• Test probe: R

> 10 MΩ, Ci < 20 pF.

• Use an isolated trimmer/screwdriver to perform alignments.

6.2 Hardware Alignments

Not applicable.

6.3 Software Alignments

Put the set in SAM mode (see Chapter 5. Service Modes, Error

Codes, and Fault Finding). The SAM menu will now appear on

the screen. Select ALIGNMENTS and go to one of the sub menus. The alignments are explained below. The following items can be aligned:

• White point

To store the data:

• Press OK on the RC before the cursor is moved to the

left

• Select “Store” and press OK on the RC

• Switch the set to stand-by mode.

For the next alignments, supply the following test signals via a video generator to the RF input:

• EU/AP-PAL models: a PAL B/G TV-signal with a signal strength of at least 1 mV and a frequency of 475.25 MHz

• US/AP-NTSC models: an NTSC M/N TV-signal with a signal strength of at least 1 mV and a frequency of

61.25 MHz (channel 3).

• LATAM models: an NTSC M TV-signal with a signal strength of at least 1 mV and a frequency of 61.25 MHz (channel 3).

6.3.1 Display adjustment

You can use the default values. The default values are average values coming from production.

• Enter SAM mode.

• Select a colour temperature (e.g. COOL, NORMAL, or WARM).

• Set the RED, GREEN and BLUE default values according to the values in Table 6-1

• When finished press OK on the RC, then press STORE to store the aligned values to the NVM.

• Restore the initial picture settings after the alignments.

Table 6-1 White tone default settings

Colour temperature

Red Green Blue

Picture mode

Normal (9000K)

Screen size

32" 128 116 98 37" 128 103 95 42" 128 113 107 47" 128 110 96

Cool (11000K) 32" 128 120 116

37" 128 107 113 42" 128 115 125 47" 128 113 115

Warm (6500K) 32" 128 107 59

37" 128 96 58 42" 128 107 68 47" 128 103 56

This group setting of colour temperature will be applied automatically to the TV, VGA, HDMI and AV sources.

6.4 Option Settings

6.4.1 Introduction

The microprocessor communicates with a large number of I ICs in the set. To ensure good communication and to make digital diagnosis possible, the microprocessor has to know which ICs to address. The presence / absence of these MT5395 ICs (back-end advanced video picture improvement IC which offers motion estimation and compensation features (commercially called HDNM) plus integrated Ambilight control) is made known by the option codes.

Notes:

• After changing the option(s), save them by pressing the OK button on the RC before the cursor is moved to the left, select STORE and press OK on the RC.

• The new option setting is only active after the TV is switched “off” / “stand-by” and “on” again with the mains switch (the NVM is then read again).

6.4.2 Option Code Overview

Enter SAM mode to check the option codes. they could not be edited in the NVM.

6.4.3 Display Code Overview

Press the following key sequence on a standard RC transmitter: “062598” directly followed by MENU and “xxx”, where “xxx” is a 3 digit decimal value of the panel type: see column “Display Code” in Table 6-2 accepted and stored in NVM, the set will switch to Stand-by, to indicate that the process has been completed.

Table 6-2 Display code overview

CTN_ALT BOM# Panel Type Display Code

32PFL4606H/12 LGD LC320WUY-SCA1 124 32PFL4606H/58 LGD LC320WUY-SCA1 124 32PFL4606H/60 LGD LC320WUY-SCA1 124 37PFL4606H/12 LGD LC370WUY-SCA1 125 37PFL4606H/58 LGD LC370WUY-SCA1 125 37PFL4606H/60 LGD LC370WUY-SCA1 125 42PFL4506H/12 LGD LC420WUY-SCA1 126

. When the value is

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