Philips 26PFL3405 Schematic

Colour Television Chassis

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TPN1.1E

Contents Page Contents Page

1. Revision List 2

2. Technical Specifications, and 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 23

9. Block Diagrams Wiring Diagram 19", 22" 29 Wiring Diagram 26" 30 Block Diagram 31

10. Circuit Diagrams and PWB Layouts Drawing PWB Power Board: 19", 22" Power Board: 26" (A01) 35 36-37 SSB: D-sub input (B01) 38 57-58 SSB: Rear I/O (B02) 39 57-58 SSB: Scart (B03) 40 57-58 SSB: Scart 2 (B04) 41 57-58 SSB: Side input (B05) 42 57-58 SSB: CVBS audio out (B06) 43 57-58 SSB: Tuner (B07) 44 57-58 SSB: HDMI input (B08) 45 57-58 SSB: HDMI input 3 (B09) 46 57-58 SSB: Scaler NT7263X (B10) 47 57-58 SSB: DDR memory (B11) 48 57-58 SSB: Panel I/F ICE/UART (B12) 49 57-58 SSB: iTV (B13) 50 57-58 SSB: Key, I/R board (B14) 51 57-58 SSB: USB (B15) 52 57-58 SSB: Scart audio/SPdif out (B16) 53 57-58 SSB: Audio amplifier (B17) 54 57-58 SSB: PSU & Inverter I/F (B18) 55 57-58 SSB: DC-DC Power (B19) 56 57-58

Copyright 2010 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 33-34

IR/LED Board (J01) 59 60

11. Styling Sheets Styling Sheet 19" 61 Styling Sheet 22" 62 Styling Sheet 26" 63

Published by SaS/WS 1066 BU TV Consumer Care, the Netherlands Subject to modification EN 3122 785 18860

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EN 2 TPN1.1E LA1.

Revision List

1. Revision List

Manual xxxx xxx xxxx.0

• First release.

2. Technical Specifications, 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

19PFL3405/12

19PFL3405/60

22PFL3605/12

22PFL3605/60

26PFL3605/12

26PFL3605/60

PICO 3122 785 18860

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

Note: The given Model Numbers are subject to change.

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2.3 Connections

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Technical Specifications, 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 - USB2.0

Figure 2-1 Connection overview

3 -Data (+) jk 4 - Ground Gnd H

2 - Head phone (Output)

Bk - Head phone 80 - 600 Ω / 10 mW ot

3 - Cinch: Audio - In

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

/ 75 Ω jq

/ 10 kΩ jq

RMS

/ 10 kΩ jq

RMS

Figure 2-2 USB (type A)

1-+5V k 2 -Data (-) jk

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Technical Specifications, and Connections

2.3.2 Rear Connections

4 - 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 - 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

5 - EXT1: 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 kΩ k

RMS

/ 10 kΩ j

RMS

/ 1 kΩ k

RMS

5 - Ground Blue Gnd H 6 - Audio L 0.5 V 7 - Video Blue/C-out 0.7 V

/ 10 kΩ j

RMS

/ 75 Ω jk

8 - Function Select 0 - 2 V: INT

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 Gnd H

14 - Ground P50 Gnd H 15 - Video Red/C 0.7 V

/ 75 Ω j

16 - Status/FBL 0 - 0.4 V: INT

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

/ 75 Ω k

/ 75 Ω j

21 - Shield Gnd H

6 - TV ANTENNA - In

Signal input from an antenna, cable or satellite.

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

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

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

/ 75 W jq

/ 10 kW jq

RMS

/ 10 kW jq

RMS

8 - 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 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 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

9 - Audio - In: Left / Right, VGA

Gn - Audio L/R in 0.5 V

/ 10 kW jq

RMS

10 - Service / UART

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

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 5TPN1.1E 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.

• 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.

-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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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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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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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 (19")

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Mechanical Instructions

Figure 4-2 Cable dressing (22")

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Figure 4-3 Cable dressing (26")

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 22PFL3405/xx, but will be similar for other models.

4.3.1 Rear Cover

Warning: Disconnect the mains power cord before removing

the rear cover.

1. Remove fixation screws [1], [2] and [3] that secure the rear cover. See Figure 4-4

2. The rear cover is secured with locking clips at the side and top of the cabinet. Pull the rear cover from the TV. This may require more than average force. Push down the stand by one hand and pull up the bottom right corner of the rear cover by the other hand to release the clips at the right side of the rear cover, see Figure 4-5 the same method to release the clips at the left side of the rear cover. Lift bottom side of the rear cover to release clips at the top side of rear cover, see Figure 4-7

3. 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.

. Don’t remove the stand.

and Figure 4-6, then use

Figure 4-4 Rear cover removal [1/4]

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Pull up

Push down

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Pull up

Push down

Mechanical Instructions

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 tape from near the bottom side of the set from the SSB shielding.

2. Remove the fixation screw near the L-R audio side inputs.

3. Remove all other fixation screws from the SSB.

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

5. Release the other cables from their clamps.

6. Unplug all other connectors.

7. Take the SSB out. Caution: be careful not to damage the thermal pad at the bottom side of the SSB.

Figure 4-5 Rear cover removal [2/4]

Figure 4-6 Rear cover removal [3/4]

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 and LCD panel.

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.

4.3.4 Speakers

1. Release the speaker cable from its clamps.

2. Unplug the speaker connector from the SSB.

3. Take the speakers out.

When defective, replace the whole unit.

4.3.5 Stand removal

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 speaker cables as described earlier.

2. Remove the fixation screws.

3. Take the stand out.

4.3.6 IR/LED Board

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Figure 4-7 Rear cover removal [4/4]

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

2. Remove the fixation screw.

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

When defective, replace the whole unit.

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4.3.7 Keyboard Control Panel

Refer to Figure 4-8

1. Unplug the connector [1] on the IR/LED board that leads to the Local Control board, as it is not unplug-able at the Local Control board itself (soldered connector).

2. Release the cable from its clamps/tape.

3. Put your thumbs against the front bezel [1] while pulling the Local Control board in the direction of the arrows

When defective, replace the whole unit.

4.4 Set Re-assembly

To re-assemble the whole set, execute all processes in reverse order.

Notes:

• While re-assembling, make sure that all cables are placed and connected in their original position. See Figure 4-1

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

, Figure 4-2 and Figure 4-3.

Figure 4-8 Keyboard Control Panel

4.3.8 LCD Panel

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. Release the control board cable from its clamps and unplug the control board cable from the IR/LED board.

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

7. Lift the LCD Panel from the bezel.

8. Remove the fixation screws that secure the panel with the Metal frame.

When defective, replace the whole unit.

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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).

• 1.3 Reserved Not applicable.

• 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.

• 2.2 Reserved Not applicable.

• 2.3 Reserved Not applicable.

• 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 key Detects and displays.

• 3.4 Reserved Not applicable.

• 3.5 Reserved Not applicable.

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

• 3.7 HDMI video format input Per Supported format. e.g. 576i 50 Hz, 576p 50 Hz, 720p 50 Hz, 1080i 50 Hz, 1080p50Hz

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Service Modes, Error Codes, and Fault Finding

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100429

How to Exit CSM

Press “MENU” on the RC-transmitter.

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: “0 6 2 5 9 6 INFO”.

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

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.

EN 15TPN1.1E LA 5.

Figure 5-4 Example of SAM

Table 5-1 Contents of SAM

Action Items Range Default Value Description

Brand PHILIPS PHILIPS PHILIPS brand customer

Ver TPN1 1E 2.01 TPN1 1E 2.01 TPN1 1E 2.01 software version

Date Apr 21 2010 Apr 21 2010 Apr 21 2010

Model name 19PFL3405/12 22PFL3405/12 26PFL3405/12 model name

Scaler NT72632 NT72632 NT72632 scaler IC type

Panel type LC185EXN-SCA1(119) LC216EXN-SCA1(120) LC260EXN-SCB1(121) panel type and display code

Current source TV TV TV select source

Auto color GO GO GO PC: any pattern has black and white YPbPr: SMPTEbar (colour bar), any

ADC offset 0 - 255 R 0 G 0 B 0 R 0 G 0 B 0 R 0 G 0 B 0 PC: any pattern has black and white YPbPr: SMPTEbar (colour bar), any

ADC gain 0 - 255 R 0 G 0 B 0 R 0 G 0 B 0 R 0 G 0 B 0 PC: any pattern has black and white YPbPr: SMPTEbar (colour bar), any

Color temp Normal Normal Normal colour temperature, normal, cool, warm

Scaler offset 0 - 255 R 128 G 128 B 128 R 128 G 128 B 128 R 128 G 128 B 128 Back-End Scaler R G B Gain NVM has YPbPr NORMAL, WARM, COOL,

Scaler gain 0 - 255 R 113 G 126 B128 R 102 G 121 B128 R 127 G 127 B123 Back-End Scaler R G B Gain NVM has YPbPr NORMAL, WARM, COOL,

Burn in Off Off Off Puts the set in Burn In mode, for factory use only

EEPROM init GO GO GO resets the EEPROM to initial mode

Backlight time x hours x hours x hours the set backlight running time Error code 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 error code layer 2. Store in NVM. Clear error code GO GO GO clears error code Layer 2. in NVM.

Reset PBS setting GO GO GO resets the PBS setting

Virgin mode Off Off Off resets the set to manufacturer's mode

ACI On On On ACI on or off

ATS OnOnOnATS on or off

NVM address 0×0 (0) 0×0 (0) 0×0 (0) NVM address

NVM value 0×49 (73) 0×55 (85) 0×35 (53) NVM value NVM

NVM copy to USB GO GO GO use this to copy the NVM data from the TV to the USB

NVM paste from USB GO GO GO use this to restore the NVM data from the USB to the TV

Exit Press OK Exit from factory mode

19" 22" 26"

software release date

timing.

CUSTOMER four sets. Other source use offset with hardcoding

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EN 16 TPN1.1E LA5.

10000_036_090121.eps

091118

UART SERVICE

CONNECTOR

UART SERVICE

CONNECTOR

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

Service Modes, Error Codes, and Fault Finding

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 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 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,

5.3 Software Upgrading

5.3.1 Introduction

Philips continuously tries to improve its products, and it’s recommended to update the TV software when updates are available. Software update files can be downloaded from the Philips website: http://www.philips.com/support

Preparing a portable memory for software upgrade

The following is required:

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

5.3.2 Check the current TV software version

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

1. Press the “Menu” button on the 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 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 your 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.

, it is

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 90630.

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

• ComPair UART interface cable for TPN1.1x xx. 3122 785 90630.

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

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5.3.4 Update the TV software

1. Turn on the TV.

2. Unplug the AC power cord from the TV.

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

4. Plug the AC power cord to the TV.

5. The TV will upgrade automatically. The red light at the bottom right side of the TV will flash about 20 seconds when the TV is upgrading. Please wait, when the red light does not flash, it shows the software is upgraded.

6. Unplug the AC power cord from the TV, then unplug the USB flash driver from the TV.

7. Plug the AC power cord to the TV.

8. The red light will flash about 5 seconds, it shows the TV has upgraded to the new version software.

Note:

• Do not remove the USB flash driver 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.

• It’s not recommended to downgrade to an older version.

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

Service Modes, Error Codes, and Fault Finding

Basically there are three kinds of error codes:

Error Code Event

000 No problem

011 I

012 Tuner error

013 panel

C bus error

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.

EN 17TPN1.1E LA 5.

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EN 18 TPN1.1E LA6.

Current Source : EXT2 (TV,EXT1,EXT2,VGA,…) Auto Color : Go ADC Offset : R xxx G xxx B xxx ADC Gain : R xxx G xxx B xxx Color Temp : Cool Scaler Offset : R 128 G 128 B 128 Scaler Gain : R xxx G xxx B xxx Burn in : Off EEPROM Init : Go … Exit Note: xxx is digit number

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6. Alignments

Alignments

Index of this chapter:

6.1

General Alignment Conditions

6.2 Hardware Alignments

6.3 Auto Colour for ADC Calibration

6.4 White Balance Adjustment

6.5 Option Settings

6.6 Serial Number Definition

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

Service Modes, Error Codes, and Fault Finding.

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 MΩ, Ci < 20 pF.

, 50/60 Hz ± 3 Hz.

6.2 Hardware Alignments

Not applicable.

6.3 Auto Colour for ADC Calibration

Process

1. Press the following key sequence on the remote control transmitter: “0 6 2 5 9 6 INFO”, see Figure 6-2

2. Press B, y to move cursor to “Auto Color”.

3. Press Go to do “ADC Gain” and “ADC Offset”.

4. “Exit”.

Figure 6-2 OSD in factory mode

6.3.2 For VGA (R/G/B) source

Requirement:

1. Use Chroma 2226 or equivalent equipments.

2. Set Timing mode at 1360 × 768 at 60 Hz.

3. Apply SMPTE-133 pattern, see Figure 6-1

Process

1. Enter factory mode, then refer to Figure 6-2

6.3.1 For CVI (Y/Pb/Pr) source

Equipment Requirements:

Use QuantumData 802BT or equivalent equipments.

Input requirements:

Input Signal Type: YPbPr signal

• Set Timing mode at 720P 50 mode.

Pattern:

Apply SMPTE133 Pattern, see Figure 6-1

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Figure 6-1 SMPTE133 pattern

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100507

6.4 White Balance Adjustment

6.4.1 General set-up

Equipment Requirements:

QuantumData 802BT and CS-200.

Input requirements:

Flat 80 (Full White Pattern, Gray Level = 80%).

Input Injection Point:

YPbPr input (EXT 2).

Note: The test pattern must always keep same, as well as pattern generation and timing, to avoid “Dynamic Contrast” and “Dynamic Backlight” generating unknown conditions. These parameters are located in the Digital Crystal Clear function of user menu.

6.4.2 Alignment Request in the centre of the screen

Pre-check panel uniformity is OK and Pre-check “White Original Surface Luminance”, Scaler R/G/B gain = 128.

• 19" panel: > 240 cd/m

• 22" panel: > 240 cd/m

• 26" panel: > 320 cd/m

Adjusting “Scaler Gain” in factory mode. The R/G/B gain value should be below 128 to avoid saturation at the 11-step grey pattern.

This group setting of color temp. will be applied automatically in TV / VGA / HDMI / AV source.

Alignments

EN 19TPN1.1E LA 6.

Table 6-1 The 1931 CIE chromaticity (x, y) by CS-200

Picture Mode x y

Normal (9000K) 0.276 ± 0.010 0.282 ± 0.010

Cool (11000K) 0.287 ± 0.010 0.296 ± 0.010

Warm (6500K) 0.313 ± 0.010 0.329 ± 0.010

Table 6-2 The 1931 CIE chromaticity (x, y) by CA-210

Picture Mode x y

Normal (9000K) 0.2792 ± 0.010 0.3012 ± 0.010

Cool (11000K) 0.2909 ± 0.010 0.3150 ± 0.010

Warm (6500K) 0.3148 ± 0.010 0.3522 ± 0.010

If you do not have a colour analyser, you can use the default 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 6-3

• 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 6-3 White tone default settings

6.6 Serial Number Definition

Table 6-5 BOM Code

Panel Supplier Code

AU 1

CPT 2

LPL (LG) 3

QDI 4

CMO 5

HSD 6

SVA 7

Colour temperature

Picture Mode Size

Red Green Blue

Normal 19" 113 126 128

22" 102 121 128

26" 127 127 123

Cool 19" 105 120 128

22" 96 116 128

26" 115 125 127

Warm 19" 116 128 116

22" 112 128 120

26" 127 124 102

6.5 Option Settings

6.5.1 Reset Options

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

Table 6-4 Display code overview

CTN_ALT BOM# Panel Type Panel ID

19PFL3405/12_1 LG LC185EXN-SCA1 119

19PFL3405/12_2

19PFL3405/60_1 LG LC185EXN-SCA1 119

19PFL3405/60_2

22PFL3405/12_1 LG LC216EXN-SCA1 120

22PFL3405/12_2

22PFL3405/60_1 LG LC216EXN-SCA1 120

22PFL3405/60_2

26PFL3405/12_1 LG LC260EXN-SCB1 121

26PFL3405/12_2

26PFL3405/60_1 LG LC260EXN-SCB1 121

26PFL3405/60_2

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