Philips 43PFG5501, 43PFD5501 Schematic

Colour Television Chassis

TPM16.1L

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 Cable dressing (43" 5501 series) 9 Cable dressing (49" 5501 series) 10

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

6. Alignments 22

7. Circuit Descriptions 24

8. IC Data Sheets 31

9. Block Diagrams Block diagram series 35

10. Circuit Diagrams and PWB Layouts Drawing PWB A 715G7574 PSU A 715G7575 PSU 39 43-44 B 715G7049 SSB 45 60-61 J 715G8009 IR/LED Panel 62 63 J 715G8010 IR/LED Panel 64 65 E 715G7088 Keyboard control panel 66 67

11. Styling Sheets 5501 series 43" 68 5501 series 49" 69

36 37-38

Published by CQZ/SC 1629 Quality Printed in the Netherlands Subject to modification EN 3122 785 20171

2016-Jul-22

2016 ©

TP Vision Netherlands B.V.

All rights reserved. Specifications are subject to change without notice. Trademarks are the property of Koninklijke Philips Electronics N.V. or their respective owners. TP Vision Netherlands B.V. reserves the right to change products at any time without being obliged to adjust earlier supplies accordingly. PHILIPS and the PHILIPS’ Shield Emblem are used under license from Koninklijke Phili ps Electronics N.V.

EN 2 TPM16.1L LA1.

Revision List

1. Revision List

Manual xxxx xxx xxxx.0

• First release.

Manual xxxx xxx xxxx.1

• Chapter 2: Updated table 2.1 Technical Specifications

• Chapter 6: Updated tables 6-2 White tone default settings and 6-3 Display code overview

2. Technical Specs, Diversity, and Connections

Index of this chapter:

• Specifications are indicative (subject to change).

2.1 Technical Specifications

2.2 Directions for Use

2.3 Connections

2.4 Chassis Overview

2.1 Technical Specifications

For on-line product support please use the links in back to

div.table 2-1. Here is product information available, as well as

getting started, user manuals, frequently asked questions and

Notes:

software & drivers.

• Figures can deviate due to the different set executions.

Table 2-1 Described Model Numbers and Diversity

24 910 11

Mechanics

CTN

43PFG5501/77 2-1 4-1 4-3 4-4 4-5 4-6 4-7 9.1 10.1 or 10.2 10.3 10.4 10.6 11.1 43PFD5501/55 2-1 4-1 4-3 4-4 4-5 4-6 4-7 9.1 10.1 10.3 10.4 10.6 11.1 49PFG5501/77 2-1 4-2 4-3 4-4 4-5 4-6 4-7 9.1 10.2 10.3 10.5 10.6 11.2 49PFD5501/55 2-1 4-2 4-3 4-4 4-5 4-6 4-7 9.1 10.2 10.3 10.5 10.6 11.2

Connection Overview

Wire Dressing

Stand Removal

Rear Cover Removal

Kyboard Control Removal

IR/LED Board Removal

SSB Removal

Schematics

Block Diagram

Power Supply

SSB

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

J (IR/LED)

E (Keyboard/Leading Edge)

Styling

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2.3 Connections

TV ANTENNA

SERV.U

AUDIO IN

DVI

HDMI 3

ARC

SPDIF

OUT

NETWORK

HDMI 2

ARC

USB3

USB

HDMI

ARC/MHL

CVBS

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Side Connectors

Rear Connectors

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Technical Specs, Diversity, and Connections

EN 3TPM16.1L 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 - Service / UART

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

2 - USB1

Figure 2-2 USB (type A)

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

3 - USB2

Figure 2-3 USB (type A)

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

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4 - EXT: Video CVBS - In, Audio - In

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

5 - HDMI 1: Digital Video - In, Digital Audio with ARC/MHL In/Out

Figure 2-4 HDMI (type A) connector

1 -D2+ Data channel j 2 -Shield Gnd H 3 -D2- Data channel j 4 -D1+ Data channel j 5 -Shield Gnd H 6 -D1- Data channel j 7 -D0+ Data channel j 8 -Shield Gnd H 9 -D0- Data channel j 10 - CLK+ Data channel j 11 - Shield Gnd H 12 - CLK- Data channel j 13 - Easylink/CEC Control channel jk 14 - ARC Audio Return Channel k 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

6- Head phone (Output)

Bk -Head phone 80 - 600  / 10 mW ot

/ 75 W jq

/ 10 kW jq

RMS

/ 10 kW jq

RMS

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Technical Specs, Diversity, and Connections

2.3.2 Rear Connections

7 - RJ45: Ethernet

Figure 2-5 Ethernet connector

1 -TD+ Transmit signal k 2 -TD- Transmit signal k 3 -RD+ Receive signal j 4 -CT Centre Tap: DC level fixation 5 -CT Centre Tap: DC level fixation 6 -RD- Receive signal j 7 -GND Gnd H 8 -GND Gnd H

8 - Cinch: Digital Audio - Out

BK - Coaxial 0.4 - 0.6V

/ 75 W kq

9- TV ANTENNA - In

Signal input from an antenna, cable or satellite.

10 - USB3

13- HDMI 2: Digital Video - In, Digital Audio with ARC In/Out

Figure 2-8 HDMI (type A) connector

Figure 2-6 USB (type A)

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

11 - Audio - In: Left / Right, DVI

Gn - Audio L/R in 0.5 V

/ 10 k jq

RMS

12- HDMI 3: Digital Video - In, Digital Audio with ARC In/Out

Figure 2-7 HDMI (type A) connector

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

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.

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 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.

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”.

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

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-9

), or pico-farads (p 10

. Select

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-12

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Precautions, Notes, and Abbreviation List

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

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Precautions, Notes, and Abbreviation List

EN 7TPM16.1L LA 3.

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 F requency 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.

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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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CN408

CN700

CN6005

CN401

CN8601

CN9103

CN4250

MAIN POWER SUPPLY

(1054)

SSB

(1053)

ECN700

ECN6005

ECN408

ECN401

ECN6005

ECN401

LOUDSPEAKER

(1184)

LOUDSPEAKER

(1184)

ECN408

ECN4250

IR/LED BOARD

(1056)

KEYBOARD CONTROL

(1057)

CN01

WIFI Module

(WiFi01)

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

Mechanical Instructions

Notes:

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

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Figure 4-1 Cable dressing (43" 5501 series)

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CN408

CN700

CN401

CN6005

CN8603

CN9101

CN4250

MAIN POWER SUPPLY

(1054)

SSB

(1053)

ECN700

ECN6005

ECN408

ECN601

ECN401

ECN6005

LOUDSPEAKER

(1184)

LOUDSPEAKER

(1184)

ECN408

ECN4250

IR/LED BOARD

(1056)

KEYBOARD CONTROL

(1057)

CN01

WIFI Module

(WiFi01)

Mechanical Instructions

4.2 Se rvice 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.

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Figure 4-2 Cable dressing (49" 5501 series)

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Mechanical Instructions

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4.3 Assembly/Panel Removal

Instructions below apply to the 49PFG5501/77, but will be similar for other 43"/49"Pxx5501 series models.

4.3.1 Stand

Refer to Figure 4-3

1. Remove the fixation screws [1] that secure the stand bracket. Refer to Figure 4-3

2. Take the stand bracket out from the set.

for details.

M4 × 16

Figure 4-3 Stand removal

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Mechanical Instructions

4.3.2 Rear Cover

Refer to Figure 4-4 Warning: The Keyboard catch on the Back cover, disconnect the Keyboard cord before removing the rear cover.

for details.

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

2. Gently lift the rear cover from the TV. Make sure that wires and cables are not damaged while lifting the rear cover from the set.

for details.

4.3.3 Keyboard Control unit

Refer to Figure 4-5

1. The Keyboard catch on the Back cover, so the cable connector[1] form the SSB must be released first before opening of Back cover.

2. Remove all the fixation screws from the keyboard [2].Then Unplug the connector[3] from the keyboard control panel.

When defective, replace the whole unit.

for details.

Figure 4-4 Rear cover removal

Figure 4-5 Keyboard removal

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4.3.4 IR/LED Board

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Step 2

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Mechanical Instructions

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Refer to Figure 4-6

1. The IR cover are fixed by the clips[1], press down the clips to release the IR cover.

2. Carefully pull out the IR cover, then unplug the connector [2] from the IR/LED board. The IR/LED Board can now be lifted and taken out from the cover. Refer to Figure 4-6 details.

for details.

for

Figure 4-7 SSB removal

4.3.6 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. Gently unplug all connectors from the PSU.

2. Remove all fixation screws from the PSU.

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

Figure 4-6 IR/LED Board removal

4.3.5 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 the LVDS connector that connect with the SSB[1]. Caution: be careful, as these are very fragile connectors!

2. Unplug all other connectors [2].

3. Remove all the fixation screws from the SSB [3].

4. The SSB can now be shifted from side connector cover, then lifted and taken out of the I/O bracket. Refer to

Figure 4-7

for details.

4.3.7 Speakers

1. Gently release the tapes that secure the speaker cables.

2. Unplug the speaker connector from the SSB.

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

4.3.8 WIFI module

1. Unplug the connector from the SSB.

2. Remove fixation screw that secure the WIFI module, getntly remove the module from the set.

When defective, replace the whole unit.

4.3.9 LCD Panel

1. Remove the SSB as described earlier.

2. Remove the PSU as described earlier.

3. Remove the keyboard control panel as described earlier.

4. Remove the stand bracket as described earlier.

5. Remove the IR/LED as described earlier.

6. Remove the fixations screws that fix the metal clamps to the front bezel. Take out those clamps.

7. Remove all other metal parts not belonging to the panel.

8. Lift the LCD Panel from the bezel.

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

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and connected in their original position. See Figure 4-1

Figure 4-2

• 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 Service Modes

5.2 Stepwise Start-up

5.3 Service Tools

5.4 Software Upgrading

5.5 Error Codes

5.6 The Blinking LED Procedure

5.7 Fault Finding and Repair Tips

5.1 Service Modes

The Service Mode feature is split into five parts:

• Service Alignment Mode (SAM).

• Factory Mode.

• Customer Service Mode (CSM).

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

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

• Display information (“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.

• 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 1 - 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.

• YYY is the sub version number: this is updated with a minor change (backwards compatible with the previous versions). Numbering will go from 000 - 999.

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

- If the NVM is refreshed, the software identification, version, and cluster will also 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. When the value is accepted and stored in NVM, the set will switch to Stand-by, to indicate that the process has been completed. 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.

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).

5.1.1 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 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 SAM, and CSM. The screen will show: “AAAAAB-XXX.YYY.MMM.TTT”, where:

• AAAAA is the chassis name: TPM161L.

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

able 5-1 SAM mode overview

Main Menu Sub-menu 1 Sub-menu 2 Description

Hardware info The information of Hardware Operation hours This represents the life timer. The timer counts normal operation hours, but does not

Shop operation hours This represents the life timer. The timer counts normal shop operation hours, but does

Errors Shows all errors detected since the last time the buffer was erased. Five errors

Reset error buffer Reset error buffer

5.1.2 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 “INFO/OK” button. Do not allow the display to time out between entries while keying the sequence.

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.

count Stand-by hours.

not count Stand-by hours.

possible.

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Main Menu Sub-menu 1 Sub-menu 2 Description

Alignments Warm R Gain To align the White Tone. See

G Gain B Gain

Normal R Gain

G Gain B Gain

Cool R Gain

G Gain B Gain

Ambilight Select module Ambilight select module

Brightness Brightness of Ambilight

Option numbers Group 1 Group 1 Option number

Group 2 Group 2 Option number

Store Store the Option number Store Store Software maintenance Software events Software events

Hardware events Hardware events Test setting Digital info Test setting BT Pairing tables Clear paired remote control Clear paired remote control Wi-Fi Direct settings Reset Wi-Fi Direct group Reset Wi-Fi Direct group Development 1 file versions Development 1 file versions Development 2 file versions Development 2 file versions Upload to USB To upload several settings from the TV to an USB stick Download from USB To download several settings from the USB stick to the TV NVM editor Type number NVM-editor will function as in the past: type number, production code, 18AC SSB,

Production code

18AC SSB

18AC display

18AC supply

paragraph 6.3 Software Alignments

18AC display, 18AC supply is a decimal value via digit entry

in the Alignments section for a detailed descript ion

EN 15TPM16.1L LA 5.

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 once while in top level SAM, the set will switch to the normal user menu (with the SAM mode still active in the background).

• Press the following key sequence on the remote control transmitter: “062596” directly followed by the “Home/Menu” button to switch to (do not allow the display to time out between entries while keying the sequence).

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 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.

5.1.3 Contents of the Factory mode:

Purpose

• To perform extended alignments.

Specifications

• Displaying and or changing Panel ID information.

• Displaying and or changing Tuner ID information.

• Error buffer clearing.

• Various software alignment settings.

• Testpattern displaying.

• Public Broadcasting Service password Reset.

•etc.

How to Activate the Factory mode

To activate the Factory mode, use the following method:

• Press the following key sequence on the remote control transmitter: from the “menu/home” press “1999”, directly followed by the “Back/Return” button. Do not allow the display to time out between entries while keying the sequence.

After entering the Factory mode, the following items are displayed,

Table 5-2 Factory mode overview

Item Item value

0 F/W VERSION Press OK Displays the software versions of the supplier, Flash PQ, Smart Picture, BL Dimming, Source Meter, the

1 PANEL_ID See table back to div.table 6-3 Displays and changes the Panel ID with the left and right cursor; be careful changing this, it can result in

2 DEMOD_TYPE 5 5 Choose demod type. 3 NVM ADDRESS 0 NVM address 0 to 8191, Use Item 6 to change and 7 to store the data to the correct NVM address 4 NVM VALUE 0 Displays the value at the NVM address of item 5

Default value

Description43" 49"

Picture Quality checksum, the Dimming library, the Source meter library, the Flash AQ, MCU and OAD software versions.

not correct displaying the screen!

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Default value

Item Item value

5 NVM STORE Press OK Use this option to save the data of item 6 to NVM address of item 5 6 COPY NVM to USB Press OK Use this to store the NVM data to the REPAIR folder of a FAT formatted USB memory stick. The TV will

7 COPY NVM to TV Press OK Use this to store the NVM data from the USB memory stick to the TV. The TV will save the two files which

8 TV Settings Key 1 1 TV Settings Key 9 TV Settings VALUE 0 0 TV Settings VALUE 10 TV Settings STORE Press OK TV Settings STORE 11 COPY TV Settings to USB Press OK COPY TV Settings to USB 12 COPY TV Settings to TV Press OK COPY TV Settings to TV 13 VIRGIN_MODE Off Off Use this to return the set to virgin mode. Depends whether the set has been used already. 14 ORT_MODE On On ORT mode 15 DRMWARNING On On Warning the dat a rights management 16 AGEING MODE Off Off Use this for aging a new LCD panel 17 COLOR TEMP MODE Normal COLOR TEMP MODE 18 CLR_TEMP_R 127 127 Red colour temperature setting 19 CLR_TEMP_G 115 126 Green colour temperature setting 20 CLR_TEMP_B 88 121 Red colour temperature setting 21 ADC_GAIN_R 255 255 Red ADC gain 22 ADC_GAIN_G 255 255 Green ADC gain 23 ADC_GAIN_B 255 255 Blue ADC gain 24 ADC_OFFSET_R 127 127 Red ADC offset 25 ADC_OFFSET_G 127 127 Green ADC offset 26 ADC_OFFSET_B 127 127 Blue ADC offset 27 AUD_GAIN_HDMI 0 HDMI audio gain 28 AUD_GAIN_ATV 12 Analogue TV audio gain 29 AUD_GAIN_DTV 0 Digital TV audio gain 30 AUD_GAIN_USB 0 USB audio gain 31 AUD_GAIN_SPDIF 0 SPDIF audio gain 32 AUD_GAIN_LINE_IN 0 LINE_IN audio gain 33 AQ_INDEX 52 52 Audio Quality index 34 Copy PQ to USB Press OK Saves the picture quality data to a file “pq.bin” to the root of a FAT formatted USB memory stick 35 Copy PQ to TV Press OK Loads the picture quality data from a file “pq.bin” in to the TV 36 Copy AQ to USB Press OK Loads the audio quality data from a file “AQ.bin” in to the TV 37 Copy AQ to TV Press OK Loads the audio quality data from a file “AQ.bin” in to the TV 38 COPY DB CHL to USB Press OK Copy the USB channel list to USB 39 COPY DB CHL to TV Press OK Copy the TV channel list to TV 40 LIGHT SENSOR TYPE 0 0 Light sensor type 41 TEMP SENSOR TYPE 0 0 Tempreture sensor 42 LED TYPE 0 0 The type of LED 43 AMBILIGHT TYPE Side Segments The type of Ambient light 44 AMBILIGHT TYPE VALUE 0 0 The type value of Ambient light 45 3D 0 0 3D on/off 46 BLUETOOTH 1 1 BLUETOOTH 47 ARC TEST On ARC test 48 HDMI ARC OUTPUT ORDER EU HDMI ARC OUTPUT ORDER 49 UART ENABLE on off UART ENABLE 50 RESET MAC ADDRESS Press OK RESET MAC ADDRESS 51 EXIT_FACTORY Press OK Exits the Factory mode

Service Modes, Error Codes, and Fault Finding

Description43" 49"

write two files in the REPAIR folder of the memory stick. It will create this folder if it does not exist. The items are “Channel list”, “Personal settings”, “Option codes”, “Display-related alignments” and “History list”. In case the download to the USB stick was not successful “Failure” will appear. In this case, check if the USB stick is connected properly. Now the settings are stored onto the USB stick and can be used to download onto another TV or other SSB. Upl oading is of course only possible if the software is r unning and if a p icture is available. This method is created to be able to save the customer’s TV settings and to store them into another SSB.

were created in item 8 to the NVM of the set. Use these op tion s when replaci ng a S SB. When “ USB to TV Success” is displayed remove the power and restart the TV

How to Exit the Factory mode

Use one of the following methods:

• Select EXIT_FACTORY from the menu and press the “OK” button.

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

5.1.4 Customer Service Mode (CSM)

Purpose

The Customer Service Mode shows error codes and information on the TVs 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

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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”.

• 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.

Service Modes, Error Codes, and Fault Finding

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!

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.

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

• 1.4b Option Code 2 Gives the option codes of option group 2 as set in SAM.

• 1.5 18AC 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.

• 1.6 18AC Display 18NC NVM read/write.

• 1.7 18AC Supply 18AC NVM read/write.

• 1.8 18AC sensor board 18AC NVM read/write.

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

• 2.3 e-UM version eDFU (help) version.

• 2.4 Strings database version Displays the version of strings database.

• 2.5 NT333 FRC version Displays the version of NT333 FRC.

• 2.10 Channel package version version of channel package.

• 3.1 Signal Quality Analog/digital signal strength.

• 3.4 Ethernet MAC address A Media Access Control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment.

• 3.5 Wireless MAC address Wireless Media Access Control address.

•

3.6 Netflix key Ind case this key are not valid and the customer wants to make use of the functionality, the SSB has to be replaced.

• 3.9 Event counter The counter of event.

icates the validity of the netflix key. In

EN 17TPM16.1L LA 5.

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.

How to Exit CSM

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.

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19080_206_110323.eps

120224

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)

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

5.2 Stepwise Start-up

Service Modes, Error Codes, and Fault Finding

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Figure 5-1 Stepwise Start-up

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19080_207_110324.eps

110324

19080_208_110324.eps

110324

19080_209_110324.eps

110324

EN 19TPM16.1L LA 5.

5.3 Service Tools

5.3.1 ComPair

The ComPair Tool is no longer supported here. Still, the interface box can be used as level shifter between the TV chassis and PC.

5.4 Software Upgrading

5.4.1 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.

5.4.2 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 FAT formatted USB memory stick (preferably empty).

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 5-4

Figure 5-2 Update the TV software [1/3]

Note:

1. Only FAT/DOS-formatted memory sticks are supported.

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

http://www.philips.com/support

web site.

5.4.3 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 “1 2 3 6 5 4” 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.

5.4.4 Download the latest software

1. Open the internet page 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 the USB memory stick into one of the USB ports of the PC.

5. Decompress the downloaded ZIP file and copy it to the root directory of the USB flash drive.

5.4.5 Update the TV software

1. Turn the TV on and wait for it to boot completely.

2. Insert the USB memory stick that contains the software update files in one of the TV’s USB ports.

3. The TV will detect the USB memory stick automatically. Then a window jumps out as Figure 5-2

. 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 5-2

5. To proceed, In next menu select [Start] and press OK to start software updates. See Figure 5-3

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

, it is

Figure 5-4 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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Service Modes, Error Codes, and Fault Finding

5.4.6 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.

• FUS_clustername_version.zip: Contains the file downloaded which is needed to upgrade the TV main software and the software download application.

• NVM_clustername_version.zip: Default NVM content.

5.4.7 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 5-3 Service mode overview

Service Modes Description

SAM Service alignment mode Factory Mode Used for extended alignments CSM 3-page compact CSM pages. There wi ll be CS M dump to

USB SW upgradeable SW-upgrading of flash memories MT5593U can be done

NVM-Editor in SAM NVM-editor will function as in the past: Address and Value

Service Data New Service data in SAM for CTN, Prod. no., 12NC

USB copy/paste in SAM

UART logging Th ere will be printout avail able in UART. No specif ications

Blind SAM RC sequence “062598” + “Menu” +

Clear Buffer RC sequence “062599” + “OK” or via SAM

USB-stick upon entering CSM-mode

via USB. The main SW can be upgraded via the ZIP file downloaded.

field is a decimal value via digit entry

programming with virtual keyboard Channel list, NVM data, Readable info, EDID

of the printout, per MTK provision/definition.

“Panel code”

Example: – ERROR: 000 000 000 000 000: No errors detected – ERROR: 013 000 000 000 000: Error code 13 is the

last and only detected error

– ERROR: 034 013 000 000 000: Error code 13 was

detected first and error code 34 is the last detected (newest) error

• Via the blinking LED procedure (when you have no picture). See paragraph 5.6 The Blinking LED Procedure

5.5.3 Error codes

In this chassis only “layer 2” error codes are available and point to problems on the SSB. They are triggered by LED blinking when CSM is activated. Only the following layer 2 errors are defined:

Table 5-4 Error code table

Layer-2 error code Defective de vice

13 General I2C bus error on the SSB 16 +12 V missing or low, PSU defective 27 Channel decoder error on the SSB 34 Tuner I2C bus error on the SSB 35 EEPROM I2C error on SSB, M24C64

5.5.4 How to Clear the Error Buffer

The error code buffer is cleared in the following cases:

• By using the CLEAR command in the SAM menu

• By using the CLEAR command in the Factory mode:

• 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.

5.6 The Blinking LED Procedure

5.6.1 Introduction

5.5 Error Codes

5.5.1 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). 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.

5.5.2 How to Read the Error Buffer

You can read the error buffer in three ways:

• On screen via the SAM/CSM (if you have a picture).

C device.

C error.

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 SAM, 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.

5.6.2 How to Activate Blinking LED Procedurer

Use one of the following methods:

• Activate CSM.The blinking front LED will show the lay er 1 error(s), this works in “normal operation” mode or

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EN 21TPM16.1L LA 5.

automatically when the error/protection is monitored by the standby processor. In case no picture is shown and there is no LED blinking, read the logging to detect whether “error devices” are mentioned. (see section “5.7 Fault Finding and Repair

Tips, 5.7.4 Guidelines Uart logging”).

• Activate SAM. The blinking front LED will show the entire content of the LAYER 2 error buffer, this works in “normal operation” mode.

5.7 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.

5.7.1 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.

5.7.6 No Picture via HDMI input

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

5.7.7 TV Will Not Start-up from Stand-by

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

5.7.8 Audio Amplifier

The Class D-IC U606 has a powerpad for cooling. When the IC is replaced it must be ensured that the powerpad is very well pushed to the PWB while the solder is still liquid. This is needed to insure that the cooling is guaranteed, otherwise the Class D-IC could break down in short time.

5.7.9 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!

5.7.10 Display option code

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

5.7.2 CSM

When CSM is activated and there is an USB stick connected to the TV set, then the software will collect the complete CSM content in a file Csm.xml and dump the file in a folder “CSM” on the USB stick. When this mechanism works it can be concluded that a large part of the operating system is already working (SOC, USB ...).

5.7.3 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 back to div.table 6-3

5.7.4 Guidelines Uart logging

Possible cases:

Uart loggings are displayed:

• We can conclude that the TV-set is starting up and thatcommunication with the flash RAM seems to be supported. The processor is able to read and write in the DRAMs.

• We can not yet conclude that flash RAM and DRAMs are fully operational/reliable.There still can be errors in the data transfers, DRAM errors, read/write speed and timing control.

Uart loggings report fault conditions, error messages, error codes and fatal errors:

• Some failures are indicated by error codes in the logging, check referring to back to div.table 5-4.

2C bus errors.

•I

• Not all failures or error messages should be interpreted as fault. For instance the root cause can be wrong option codes settings.

for

5.7.5 Unstable Picture via HDMI input

Check if HDMI EDID data is properly programmed.

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