Philips tpm4.1ela Service Manual

Colour Television Chassis

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TPM4.1E

Contents Page Contents Page

1. Revision List 2

2. Technical Specifications, Connections 2

3. Precautions, Notes, and Abbreviation List 5

4. Mechanical Instructions 9

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

6. Alignments 18

7. Circuit Descriptions 20

8. IC Data Sheets 24

9. Block Diagrams Wiring Diagram (32") 29 Wiring Diagram (42") 30 Block Diagram 31

10. Circuit Diagrams and PWB Layouts Drawing PWB Power Board: Power, 32" Power Board: Inverter, 32" (A02) 33 34-35 Power Board: Power, 42" (A01) 36 38-39 Power Board: Inverter, 42" (A02) 37 38-39 SSB: D-Sub Input (B01) 40 59-60 SSB: REAR I/O (B02) 41 59-60 SSB: Scart (B03) 42 59-60 SSB: SIDE Input (B04) 43 59-60 SSB: CVBS/ Audio Out (B05) 44 59-60 SSB: Tuner (B06) 45 59-60 SSB: HDMI Input (B07) 46 59-60 SSB: WT6703F (Stand-by MCU) (B08) 47 59-60 SSB: MTK8222 (B09) 48 59-60 SSB: DDR1 Memory (B10) 49 59-60 SSB: KEYBOARD, IR/LED & ComPair I/F (B11) 50 59-60 SSB: Audio Switch (B12) 51 59-60 SSB: AUDIO Preamplifier (B13) 52 59-60 SSB: Audio Amplifier (B14) 53 59-60 SSB: DC/DC Power (B15) 54 59-60 SSB: T-CON, LCD Panel I/F (B16) 55 59-60 SSB: T-CON DC/DC (B17) 56 59-60

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.

(A01) 32 34-35

SSB: T-CON TGMA , Level-Shifter (B18) 57 59-60 SSB: T-CON Mini-LVDS I/F (B19) 58 59-60 IR/LED Board (J) 61 62

11. Styling Sheets Styling Sheet 32" 63 Styling Sheet 42" 64

Published by WEP/WS 1161 BU TV Consumer Care, the Netherlands Subject to modification EN 3122 785 18873

2011-Jan-21

EN 2 TPM4.1E LA1.

Revision List

1. Revision List

Manual xxxx xxx xxxx.0

• First release.

Manual xxxx xxx xxxx.1

• Added “/60” models to Table 6-3

Manual xxxx xxx xxxx.2

• Chapter 4: added information on returning a defect LCD panel.

• Chapter 6: updated Option code overview.

Manual xxxx xxx xxxx.3

• Added 32PFL3205/12 to the manual.

2. Technical Specifications, 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

32PFL3205/12

32PFL3605/12

32PFL3605/60

42PFL3605/12

42PFL3605/60

Note: The given Model Numbers are subject to change.

Dali 3122 785 18873

Dali 3122 785 18870

2.2 Directions for Use

Directions for use can be downloaded from the following websites:

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

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2.3 Connections

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Technical Specifications, Connections

EN 3TPM4.1E LA 2.

2.3.1 Side Connections

Figure 2-1 Connection overview

Note: The following connector colour abbreviations are used

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

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

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

2 - HDMI: Digital Video, Digital Audio - In

/ 75  jq

/ 10 k jq

RMS

/ 10 k jq

RMS

Figure 2-2 HDMI (type A) connector

1 -D2+ Data channel j 2 -Shield Gnd H 3 -D2- Data channel j 4 -D1+ Data channel j 5 -Shield Gnd H 6 -D1- Data channel j 7 -D0+ Data channel j 8 -Shield Gnd H 9 -D0- Data channel j 10 - CLK+ Data channel j 11 - Shield Gnd H 12 - CLK- Data channel j 13 - n.c. 14 - n.c.

15 - DDC_SCL DDC clock j 16 - DDC_SDA DDC data jk 17 - Ground Gnd H 18 - +5V j 19 - HPD Hot Plug Detect j 20 - Ground Gnd H

3 - USB2.0

Figure 2-3 USB (type A)

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

2.3.2 Rear Connections

4 - TV ANTENNA - In

Signal input from an antenna, cable or satellite.

5 - Audio - Out: Left / Right

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

/ 10 k kq

RMS

/ 10 k kq

RMS

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6 - EXT1 - 2: Video RGB/YC - In, CVBS - In/Out, Audio In/Out

Figure 2-4 SCART connector

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

/ 1 k k

RMS

/ 10 k j

RMS

/ 1 k k

RMS

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 k j

RMS

/ 75  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 12 - n.c.

/ 75  j

13 - Ground Red Gnd H 14 - Ground P50 Gnd H 15 - Video Red/C 0.7 V 16 - Status/FBL 0 - 0.4 V: INT

/ 75  j

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

/ 75  k

/ 75  j

7 - EXT3: Video YPbPr - In, Audio - In

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

/ 75 W jq

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

/ 10 kW jq

RMS

/ 10 kW jq

RMS

8 - Audio - In: Left / Right, VGA

Gn - Audio L/R in 0.5 V

/ 10 kW jq

RMS

9 - PC IN:VGA

Figure 2-5 VGA connector

1 - Video Red 0.7 V 2 - Video Green 0.7 V 3 - Video Blue 0.7 V

/ 75  j

4-n.c. 5 - Ground Gnd H 6 - Ground Red Gnd H 7 - Ground Green Gnd H 8 - Ground Blue Gnd H 9-+5V

+5 V j 10 - Ground Sync Gnd H 11 - Ground Red Gnd 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

10 - Service / UART

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

11 - HDMI 1: Digital Video, Digital Audio - In

See 2 - HDMI: Digital Video, Digital Audio - In

2.4 Chassis Overview

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

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Precautions, Notes, and Abbreviation List

3. Precautions, Notes, and Abbreviation List

EN 5TPM4.1E 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 M and 12 M.

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.

• 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 k).

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

• All capacitor values are given in micro-farads (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.

-9

), or pico-farads (p 10

. Select

-12

-6

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).

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”.

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

MODEL :

PROD.NO:

32PF9968/10

AG 1A0617 000001

MADE IN BELGIUM

220-240V 50/60Hz

VHF+S+H+UHF

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BJ3.0E LA

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.

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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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Precautions, Notes, and Abbreviation List

EN 7TPM4.1E LA 3.

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 Diode 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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EN 9TPM4.1E LA 4.

Index of this chapter:

4.1 Cable Dressing

4.2 Service Positions

4.3 Assy/Panel Removal 32"

4.4 Assembly/Panel Removal 42"

4.5 Returning a defect LCD panel

4.6 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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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 Assy/Panel Removal 32"

4.3.1 Rear Cover

Warning: Disconnect the mains power cord before removing

the rear cover.

1. Remove the fixation screws that secure the rear cover.

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.

4.3.2 Small Signal Board (SSB)

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

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

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

2. Unplug all other connectors.

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

4. Remove all other fixation screws from the SSB.

Figure 4-2 Cable dressing (42")

5. Take out the SSB together with its shielding.

6. Remove the screws near the HDMI and L/R audio connectors.

7. The SSB can now be shifted sidewards away from the side connector cover and take out of the shielding. Caution: be careful not to damage the thermal pad between the SSB and shielding.

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. Unplug power connector from the SSB.

2. Unplug all other connectors from the PSU.

3. Remove all fixation screws from the PSU.

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

When defective, replace the whole unit.

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4.3.4 Stand removal

See Figure 4-3 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 SSB as described earlier up till step 5 and including step 5.

2. Remove the fixation screws [1], (M3).

3. Remove the fixation screws [2], (M4).

4. Remove the fixation screws [3], (Parker).

5. Take out the stand.

5. Remove the bezel from the set.

6. Unplug the connectors from the IR/LED board.

7. See Figure 4-4 Keyboard Control Panel.

8. Release the clips that secure the Keyboard Control Panel [2].

When defective, replace the whole unit.

, unplug the connector [1] from the

4.3.9 LCD Panel

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Figure 4-3 Stand (32")

4.3.5 Speakers

1. Unplug the speaker connector from the SSB and remove the wire wrap from this cable.

2. Remove the fixation screws from the speaker.

3. Take the speaker out.

When defective, replace the whole unit.

4.3.6 Stand support plate

1. Release the IR/LED/Keyboard Control cable from its clamps and put it aside.

2. Remove the SSB as described earlier.

3. Remove the PSU as described earlier.

4. Remove the Stand as described earlier.

5. Release the tape and take out of the set.

4.3.7 IR/LED Board

1. Release the IR/LED/Keyboard Control cable from its clamps.

2. Remove the fixation screw in the middle-bottom of the stand that secures the stand with the bezel, see Figure 4-3

3. Remove the clips at the bottom that secure the LCD panel with the bezel.

4. Remove the fixation screws that secure the LCD panel with the bezel.

5. Remove the bezel from the set.

6. Unplug the connectors from the IR/LED board.

7. Release the clips that hold the board and take it from the bezel.

When defective, replace the whole unit.

4.3.8 Keyboard Control Panel

1. Release the IR/LED/Keyboard Control cable from its clamps.

2. Remove the fixation screw in the middle-bottom of the stand that secures the stand with the bezel, see Figure 4-3

3. Remove the clips at the bottom that secure the LCD panel

4. Remove the fixation screws that secure the LCD panel with

with the bezel.

the bezel.

[3].

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4.4 Assembly/Panel Removal 42"

4.4.1 Rear Cover

4.4.2 Small Signal Board (SSB)

Figure 4-4 Keyboard Control Panel (32")

1. Remove the SSB as described earlier.

2. Remove the PSU as described earlier.

3. Remove the speaker as described earlier.

4. Remove the stand as described earlier.

5. Remove the Stand support as described earlier.

6. Remove the clips at the bottom that secure the LCD panel with the bezel.

7. Remove the fixation screws that secure the LCD panel with the bezel.

8. Lift the LCD Panel from the bezel.

When defective, replace the whole unit.

Warning: Disconnect the mains power cord before removing the rear cover.

1. Remove the fixation screws that secure the rear cover.

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.

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. Caution: be careful, as these are very fragile connectors! Take the flat foils out of their connectors.

2. Unplug all other connectors.

3. Release the tape near the tuner from the LCD panel.

4. Release the tape near the processor shielding from the LCD panel.

5. Remove the fixation screw that connects the ground cable.

6. Remove all other fixation screws from the SSB.

7. Take out the SSB together with its shielding.

8. Remove the screws near the HDMI and L/R audio connectors.

9. The SSB can now be shifted sidewards away from the side connector cover and take out of the shielding. Caution: be careful not to damage the thermal pad between the SSB and shielding.

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Mechanical Instructions

4.4.3 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. Unplug power connector from the SSB and take the cable out of the cable clamp.

2. Unplug all other connectors from the PSU.

3. Remove all fixation screws from the PSU.

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

When defective, replace the whole unit.

4.4.4 Stand removal

See Figure 4-5 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], (Parker).

2. Remove the fixation screws [2], (M4).

3. Take out the stand.

2 2

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4. Remove the clips that secure the LCD panel with the bezel.

5. Remove the fixation screws that secure the LCD panel with the bezel.

6. Lift the LCD Panel from the bezel.

7. Unplug the connector [1] from the Keyboard Control Panel.

8. Release the clips that secure the Keyboard Control Panel [2].

When defective, replace the whole unit.

Figure 4-6 Keyboard Control Panel (42")

4.4.9 LCD Panel

1. Remove the stand as described earlier.

2. Remove the speakers as described earlier.

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3. Remove the SSB as described earlier.

4. Remove the PSU as described earlier.

5. Remove the Stand support as described earlier.

6. Remove the clips that secure the LCD panel with the bezel.

7. Remove the fixation screws that secure the LCD panel with the bezel.

8. Lift the LCD Panel from the bezel.

When defective, replace the whole unit.

Figure 4-5 Stand (42")

4.4.5 Speakers

1. Unplug the speaker connector from the SSB.

2. Remove the stand, as described earlier.

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

4.4.6 Stand support plate

1. Remove the stand as described earlier.

2. Remove the SSB as described earlier.

3. Remove the PSU as described earlier.

4. Remove all fixation screws from the stand support plate and take it out of the set.

4.4.7 IR/LED Board

1. Remove the stand as described earlier.

2. Remove the speakers as described earlier.

3. Remove the SSB as described earlier.

4. Remove the clips at the bottom that secure the LCD panel with the bezel.

5. Remove the fixation screws that secure the LCD panel with the bezel.

6. Lift the LCD Panel from the bezel.

7. Unplug the connectors from the IR/LED board.

8. Release the clips that hold the board and take it from the bezel.

When defective, replace the whole unit.

4.5 Returning a defect LCD panel

To return a defect LCD panel to the factory, all boards, cabling, mechanical supports, shieldings, clamps, spacers, the bezel and tapes have to be removed from the panel, see Figure 4-7 Be sure to carefully pack the area’s of the panel that are visible during normal use.

Figure 4-7 LCD panel

4.4.8 Keyboard Control Panel

See Figure 4-6

1. Remove the stand as described earlier.

2. Remove the speakers as described earlier.

3. Remove the SSB as described earlier.

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4.6 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 4-1

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

and Figure 4-2.

Mechanical Instructions

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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 Service Modes

5.2 Service Tools

5.3 Software Upgrading

5.4 Error Codes

5.5 Fault Finding and Repair Tips

5.1 Service Modes

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

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

5.1.1 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.

Figure 5-2 CSM Menu [2/3]

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!

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Figure 5-1 CSM Menu [1/3]

Figure 5-3 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.

General

• 1.1 Set Type NVM read/write (max. 16 characters).

• 1.2 Production code NVM read/write (max. 16 characters).

• 1.4 Option Code Store in NVM (set feature grouping as option) panel code.

• 1.5 Codes Error code Layer 2. Store in NVM. 10 error buffers: 000 = No problem, 011 = I

C bus error,

012 = tuner error, 013 = panel.

• 1.6 SSB 12NC NVM read/write (12 characters).

• 1.7 Display 12NC NVM read/write (12 characters).

• 1.8 PSU 12NC NVM read/write (12 characters).

• 2.1 Current Main SW Detects and displays software version.

• 2.4 NVM version Detects and displays software version.

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

• 3.2 TV lock Detects and displays.

• 3.3 HDCP keys Detects and displays.

• 3.6 HDMI audio format input stream Per supported format e.g. Dolby TrueHD, DTS-HD Master Audio, MPCM.

• 3.7 HDMI video format input stream Per Supported format. e.g. 576i 50 Hz, 576p 50 Hz, 720p 50 Hz, 1080i 50 Hz, 1080p 50 Hz

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How to Exit CSM

Press “MENU” on the RC-transmitter.

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5.1.2 Service Alignment Mode (SAM)

How to enter

To enter the factory mode, use the following method:

• Press the following key sequence on the remote control transmitter: “062596” directly followed by the “INFO” button.

After entering the factory mode, the following screen is visible on the top and right of the panel.

Table 5-1 Contents of SAM

Action Items Range Default Value Description

Scaler

Brand PHILIPS PHILIPS Set brand

Date Jan 26 2010 Jan 26 2010

Panel type LG LC320WUY-SCA1 LG LC420WUY-SCA1 Panel type number

Panel ID 117 116 Panel ID identify

Current source TV TV Selected source

Auto color GO GO PC: any pattern has black and white YPbPr:

Gain 0 - 255 R 0 G 0 B 0 R 0 G 0 B 0

Offset 0 - 255 R 0 G 0 B 0 R 0 G 0 B 0

Color temp Normal Normal colour temperature settings, nor mal, cool, or warm

Gain 0 - 255 R 127 G 124 B119 R 127 G 126 B113 Back-End Scaler R G B Gain NVM hasYPbPr

Burn in Off Off Resets the set to manufacturer's mode

EEPROM init GO GO Resets the EEPROM to initial mode

Backlight time 1 hr(s) 1 hr(s) Setsthe backlight time

Reset PBS setting GO GO Resets the PBS setting

NVM address 0 0 Example of an NVM address

value 77 77 Example of an NVM value

store GO GO Stores the NVM setting

NVM copy Copy to USB Copy to USB Use this to copy the NVM data from the TV to the

Virgin mode Off Off Resets the set to its initial status

ACI On On ACI “On” or “Off”

ATS On On ATS “On” or “Off”

V - Com adjust Press OK V-Com adjust Pattren White GAM1 862 35E GMA2

Exit Press OK Exit from factory mode

MT8222T MT8222T

Copy from USB Copy from USB Use this to copy the NVM data from the USB to the

821 335 GMA3 754 2F2 GMA4 638 27E GMA5 390 186 GMA6 270 10E GMA7 205 CD GMA8 162 A2 VCOM 455 1C7 Store Default init Yes Exit

32" 42"

Figure 5-4 Example of SAM

V-Com adjust Pattren White GAM1 879 36F GMA2 834 342 GMA3 768 300 GM A4 649 289 GMA5 388 184 GMA6 261 105 GMA7 195 C3 GMA8 151 97 VCOM 417 1A1 Store Default init Yes Exit

EN 15TPM4.1E LA 5.

Scaler IC type

example of released Software date

SMPTE bar (colour bar), any timing.

Analogue to Digital Converter Gain for each colour, AutoColor affects this and it value is depends on the input

Analogue to Digital Converter Offset for each colour, AutoColor affects this and it value is depends on the input

NORMAL, WARM, COOL, CUSTOMER four sets. Other source use offset with hardcoding

USB

Adjusts the V-Com setting

How to Navigate

With the up/down cursor keys can be used to navigate through the menu, while with the Left/Right cursor the values can be changed.

How to EXIT

Choose “EXIT”, and press the “OK” button.

5.2 Service Tools

5.2.1 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

C or UART commands is necessary,

because ComPair takes care of this.

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

4. ComPair features TV software upgrade 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

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UART SERVICE

CONNECTOR

UART SERVICE

CONNECTOR

TO I2C SERVICE CONNECTOR

TO TV

HDMI I

C only

Optional power

5V DC

ComPair II Developed by Philips Brugge

RC out

RC in

Optional

Switch

Power ModeLink/

Activity

ComPair II

Multi

function

RS232 /UART

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Service Modes, Error Codes, and Fault Finding

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.

Figure 5-5 ComPair II interface connection

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

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

How to Order

ComPair II order codes:

• ComPair II interface: 3122 785 91020.

• Programming software can be downloaded from the Philips Service portal.

• ComPair UART interface cable for TPM4.1x xx. 3122 785 90630.

Note: While having problems, contact the local support desk.

5.3.2 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 “Menu” button on your remote control.

2. Select “Setup” and press “OK”, then select [Software update] > [Current software].

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

5.3.3 Download the latest software

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

2. Find information and software related to your TV.

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

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

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

5.3.4 Update the TV software

1. Power off your TV and disconnect all memory devices.

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

3. Switch on your TV, and TV will display the Main Menu upon detection of USB portable.

4. Select [Setup] and press OK. See Figure 5-6 Note:If the USB flash drive is not detected after power up, disconnect it and re-insert it.

5. Select [Software update] > [Local updates] and press OK. See Figure 5-7

and Figure 5-8.

6. When prompted, select [Cancel] or [OK] and press OK. See Figure 5-9

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

8. Upgrading will now begins and the status of the updating progress will be displayed. See Figure 5-11

9. When the TV software is updated, the TV automatically restarts and the TV starts up with the new software.

, it is

5.3 Software Upgrading

5.3.1 Introduction

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

http://www.philips.com/support

Preparing a portable memory for software upgrade

You require the following:

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).

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

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web site.

Figure 5-6 Update the TV software [1/6]

Service Modes, Error Codes, and Fault Finding

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Figure 5-7 Update the TV software [2/6]

Figure 5-8 Update the TV software [3/6]

Figure 5-11 Update the TV software [6/6]

Notes:

• 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 power comes back.

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

• We do not recommend downgrading to an older version.

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

5.4 Error Codes

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.

Basically there are three kinds of error codes:

Error Code Event

000 No problem

011 I

012 Tuner error

C bus error

Figure 5-9 Update the TV software [4/6]

Figure 5-10 Update the TV software [5/6]

5.5 Fault Finding and Repair Tips

5.5.1 Speakers

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!

5.5.2 Tuner

Attention: In case the tuner is replaced, always check the tuner options.

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6. Alignments

Alignments

Index of this chapter:

6.1 General Alignment Conditions

6.2 Hardware Alignments

6.3 TV Mode display adjust

6.4 PC mode display adjustment

6.5 Gamma upload and V-com adjustment

6.6 Option Settings

6.7 Serial Number Definition

Note: The Service Alignment Mode (SAM) are described in chapter 5. Service Modes, Error Codes, and Fault Finding Menu navigation is done with the CURSOR UP, DOWN, LEFT or RIGHT keys of the remote control transmitter.

6.1 General Alignment Conditions

Perform all electrical adjustments under the following conditions:

• Power supply voltage: 195 - 264 V

• 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. Caution: It is not allowed to use heatsinks as ground.

• Test probe: R

• Use an isolated trimmer/screwdriver to perform alignments.

> 10 M, Ci < 20 pF.

, 50/60 ± 3 Hz.

6.2 Hardware Alignments

values. This is the next best solution. The default values are average values coming from production.

• Select a COLOUR TEMPERATURE (e.g. COOL, NORMAL, or WARM).

• Set the RED, GREEN and BLUE default values according to the values in Table 6-2

• When finished press OK on the RC, then press STORE (in the SAM root menu) to store the aligned values to the NVM.

• Restore the initial picture settings after the alignments.

Table 6-2 White tone default settings

Picture mode

Normal 32" 127 124 119

Cool 32" 119 114 127

Warm 32" 127 114 73

Luminance >400 cd/m picture at contrast 50, Video contrast 50 and brightness 100, with temp color “cool”.

Note: This group setting about colour temp is also applied in TV/EX1/EX2/EXT3/VGA/HDMI/HDMI SIDE/AV SIDE. It means that TV/EX1/EX2/EXT3/VGA/HDMI/HDMI SIDE/ AV SIDE use one same setting.

Screen size

42" 127 126 113

42" 125 121 127

42" 127 118 72

Colour temperature

Red Green Blue

in the centre of the screen when “stand”

Not applicable.

6.3 TV Mode display adjust

6.3.1 White balance adjustment

Equipment Requirements:

Quantum Data Pattern Generator 801GD or 802G or 802R; Apply 720P/60 at the pattern TVBAR100.

Alignment method:

Set Smart picture as “personal” (Brightness = 50, Contrast = 50, Video contrast = 50, Colour = 50); Access to SAM first, then to enable AUTO_COLOR to get HD ADC OFFSET and HD ADC GAIN. Check whether 32 gray scales are distinguishable.

6.3.2 Colour Temperature Alignment

Apply full white pattern, select smart setting to be Personal (Brightness = 50, Contrast = 50, Video contrast = 50, and Colour = 50). Adjust SCALER GAIN R G B to reach W/D and luminance in SAM mode as below. Select Color Temp in the SAM OSD. The 1931 CIE chromaticity (X, Y) coordinates must be adjusted according to Table 6-1

Table 6-1 Reading with Minolta CA-110

Picture Temp x y

Normal 0.287 0.005 0.296 0.005

Cool 0.276 0.005 0.282 0.005

Warm 0.313 0.005 0.329 0.005

If you do not have a colour analyser, you can use the default

6.4 PC mode display adjustment

6.4.1 AUTO colour adjustment

Set Brightness 100, Contrast 50, and apply 1024 × 768 @ 60Hz mode with 50 Black and 50 White pattern at the factory mode. Activate AUTO-COLOR function for auto ADC offset and gain setup. See Figure 6-1

Figure 6-1 50-Black 50-White

6.5 Gamma upload and V-com adjustment

6.5.1 Gamma Upload

Press Remote control “123789+Info” Key, Gamma data will be load in IC MAX9668ETP by FW

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6.5.2 V-com adjustment

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Row 1

Row 2

Row 3

Row 4

127 gray

0 gray

G B R G B R G B R G B R G B

Press Remote control “147852+info” Key, or press “062596+Info” for TV V-com adjustment, enter the V-com adjustment mode with a pattern (Green 2) as shown in Figure 6-2

Figure 6-2 1920 × 1080 @ 60 Hz, Pixel ON/OFF pattern

Press up/down key of remote control to select V-com in the OSD. Press the right/left buttons on the remote control to fine-tune V-com untill minimum or no flicker is detected. Press the “Store” key to save the aligned VCOM data into NVM. Note: Make sure you get the optimum result before saving. This data is saved in the NVM of the IC MAX9668ETP (U7401).

This device can only be rewritten 100 times!

Alignments

EN 19TPM4.1E LA 6.

6.6 Option Settings

6.6.1 Reset Options

In SAM, after reset “Reset option code”, restart the set immediately.

6.6.2 Option Code Overview

Table 6-3 Option code overview

CTN_ALT BOM# Panel Type Panel ID

32PFL3205/12_1 LG LC320WUY-SCB1 117

32PFL3605/12_1 LG LC320WUY-SCB1 117

42PFL3605/12_1 LG LC420WUY-SCB1 116

32PFL3605/60_1 LG LC320WUY-SCB1 117

42PFL3605/60_1 LG LC420WUY-SCB1 116

6.7 Serial Number Definition

Table 6-4 BOM Code

Panel Supplier Code

AU 1

CPT 2

LPL (LG) 3

QDI 4

CMO 5

HSD 6

SVA 7

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MM Tuner

74HC4052D

MUX

TV_CVBS

Y,Pb,Pr 1

CVBS1P

CVBS3P

SIF_P

AUDR, AUDL

DDR

SPI Flash ROM / 4M

24C02

DSUB EDID

24C32

NVRAM

I2C

CS4334

DAC

SPI

UART1

Cloning

(iTV-1)

(5P)

Video I/F

(iTV-2)

Y,Pb,Pr 2

RP,GP,BP

24C02

DVI EDID

Remark : Reserve only for iTV function

WT6703

STDBY MCU

Audio out(AR2, AL2)

Audio In

Monitor Out

TV OUT

Audio out(AR3, AL3)

CVBS out

I2C

Audio In

CVBS_SC0

Tcon

TL2428

Side S -Video

PC Audio

YPbPr 1 Audio

YPbPr 2

AV Audio

MT8222

TTL/LVDS

LCD

Panel

Com Pair

10P

(3P)

(7P)

IR Board

Key Board

2 × (2P)

L-R Speaker

LIPS/PS

control

Side AV

YPbPr 2 Audio

D-SUB

HDMI 1

HDMI 2

Side AV Audio

MAX9728

YPbPr 1

AV IN

MAX9728

TPA3110D

SCART 1

Side USB

AR1,AL 1

SCART 2

CVBS2P

(CVBS 0P)

7. Circuit Descriptions

Circuit Descriptions

Index of this chapter:

7.1 Introduction

7.2 Power Architecture

7.3 T-CON Architecture

Notes:

•Only new circuits (circuits that are not published recently) are described.

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

• For a good understanding of the following circuit descriptions, please use the wiring, block (see chapter

9. Block Diagrams) and circuit diagrams (see chapter

10. Circuit Diagrams and PWB Layouts).Where necessary, you will find a separate drawing for clarification.

7.1 Introduction

The TPM4.1E LA chassis is using the MT8222 for main processing.

7.1.1 Implementation

A key component of this chassis is the TCON TL2428MC

7.1.2 TPM4.1E LA Architecture Overview

• For details about the chassis diagrams refer to chapter 10. Circuit Diagrams and PWB Layouts. An overview of the TPM4.1E LA architecture can be found in Figure 7-1

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Figure 7-1 Architecture of TPM4.1E LA

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