Philips 37PFL9604H/12, 32PFL9604H/12, 32PFL9604H/60, 37PFL9604H/60, 56PFL9954H/12 Service Manual

...

Colour Television Chassis

Q549.2E

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Contents Page Contents Page

1. Revision List 2

2. Technical Specifications and, Connections 2

3. Precautions, Notes, and Abbreviation List 6

4. Mechanical Instructions 10

5. Service Modes, Error Codes, and Fault Finding 15

6. Alignments 36

7. Circuit Descriptions 42

8. IC Data Sheets 53

9. Block Diagrams Wiring Diagram 32" (Elite Core) 59 Wiring Diagram 37" (Elite Core) 60 Block Diagram Video 62 Block Diagram Audio 63 Block Diagram Control & Clock Signals 64

Block Diagram I2C 65

SSB: SRP List Part 2 136 Light guide 139 140 Wi-Fi Antenna 141 141

Revision List

EN 2 Q549.2E LA1.

1. Revision List

Manual xxxx xxx xxxx.0

• First release.

Manual xxxx xxx xxxx.1

• All Chapters: the following sets to the manual: see Table

2-1 Described Model numbers.

• Chapter 5: paragraph 5.8.10 PCI bus

added.

• Chapter 6: paragraph 6.6 Service SSB delivered without

main software loaded added.

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 Table 2-1. Here is product information available, as well as getting started, user manuals, frequently asked questions and software & drivers.

Table 2-1 Described Model numbers

CTN Styling Published in:

32PFL9604H/12

Elite Core 3122 785 18310

32PFL9604H/60

3122 785 18310

37PFL9604H/12

3122 785 18310

37PFL9604H/60

3122 785 18311

Technical Specifications and, Connections

EN 3Q549.2E LA 2.

2.3 Connections

VGASERVICE UART

Technical Specifications and, Connections

EN 4 Q549.2E LA2.

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

Head phone (Output)

Bk - Head phone 32 - 600 ohm / 10 mW ot

Cinch: Video CVBS - In, Audio - In

Rd - Audio R 0.5 V

RMS

/ 10 kohm jq

Wh - Audio L 0.5 V

RMS

/ 10 kohm jq

Ye - Video CVBS 1 V

/ 75 ohm jq

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

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

/ 75 ohm j

4 -Video C 0.3 V

/ 75 ohm j

USB2.0

Figure 2-2 USB (type A)

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

HDMI: Digital Video, Digital Audio - In (see HDMI 1, 2, 3 & 4 - Rear Connections)

Common Interface

68p - See diagram B07A SSB: CI: PCMCIA

Connector jk

Cinch: S/PDIF - Out

Bk - Coaxial 0.4 - 0.6V

/ 75 ohm kq

Cinch: Audio - Out

Rd - Audio - R 0.5 V

RMS

/ 10 kohm kq

Wh - Audio - L 0.5 V

RMS

/ 10 kohm kq

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

Gn - Video Y 1 V

/ 75 ohm jq

Bu - Video Pb 0.7 V

/ 75 ohm jq

Rd - Video Pr 0.7 V

/ 75 ohm jq

Rd - Audio - R 0.5 V

RMS

/ 10 kohm jq

Wh - Audio - L 0.5 V

RMS

/ 10 kohm jq

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

Figure 2-4 SCART connector

1 -Audio R 0.5 V

RMS

/ 1 kohm k

2 -Audio R 0.5 V

RMS

/ 10 kohm j

3 -Audio L 0.5 V

RMS

/ 1 kohm k 4 -Ground Audio Gnd H 5 -Ground Blue Gnd H 6 -Audio L 0.5 V

RMS

/ 10 kohm j 7 -Video Blue 0.7 V

/ 75 ohm 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 ohm j

12 - n.c. 13 - Ground Red Gnd H 14 - Ground P50 Gnd H 15 - Video Red 0.7 V

/ 75 ohm j

16 - Status/FBL 0 - 0.4 V: INT

1 - 3 V: EXT / 75 ohm j

1 2 3 4

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Technical Specifications and, Connections

EN 5Q549.2E LA 2.

Cinch: Audio - In (VGA/DVI)

Rd - Audio R 0.5 V

RMS

/ 10 kohm jq

Wh - Audio L 0.5 V

RMS

/ 10 kohm jq

HDMI 1, 2, 3 & 4: Digital Video, Digital Audio - In

Figure 2-6 HDMI (type A) connector

1 -D2+ Data channel j 2 -Shield Gnd H 3 -D2- Data channel j 4 -D1+ Data channel j

5 -Shield Gnd H 6 -D1- Data channel j 7 -D0+ Data channel j 8 -Shield Gnd H 9 -D0- Data channel j 10 - CLK+ Data channel j 11 - Shield Gnd H 12 - CLK- Data channel j 13 - Easylink/CEC Control channel jk 14 - n.c. 15 - DDC_SCL DDC clock j 16 - DDC_SDA DDC data jk 17 - Ground Gnd H 18 - +5V j 19 - HPD Hot Plug Detect j 20 - Ground Gnd H

2.4 Chassis Overview

Refer to chapter Block Diagrams for PWB/CBA locations.

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Precautions, Notes, and Abbreviation List

EN 6 Q549.2E LA3.

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. Of de set ontploft!

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

picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3).

• Where necessary, measure the waveforms and voltages

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

3.3.2 Schematic Notes

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

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

• All capacitor values are given in micro-farads (μ=× 10

-6

nano-farads (n =× 10

-9

), or pico-farads (p =× 10

-12

• 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

. Select “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.

Precautions, Notes, and Abbreviation List

EN 7Q549.2E LA 3.

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 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.

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 BLR Board-Level Repair BTSC Broadcast Television Standard

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MODEL :

PROD.NO:

32PF9968/10

MADE IN BELGIUM

220-240V 50/60Hz

128W

AG 1A0617 000001

VHF+S+H+UHF

BJ3.0E LA

Precautions, Notes, and Abbreviation List

EN 8 Q549.2E LA3.

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 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

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 MIPS Microprocessor without Interlocked

Pipeline-Stages; A RISC-based

microprocessor MOP Matrix Output Processor MOSFET Metal Oxide Silicon Field Effect

Transistor, switching device MPEG Motion Pictures Experts Group MPIF Multi Platform InterFace MUTE MUTE Line NC Not Connected NICAM Near Instantaneous Compounded

Audio Multiplexing. This is a digital

sound system, mainly used in Europe. NTC Negative Temperature Coefficient,

non-linear resistor NTSC National Television Standard

Committee. Color system mainly used

in North America and Japan. Color

carrier NTSC M/N= 3.579545 MHz,

NTSC 4.43= 4.433619 MHz (this is a

Precautions, Notes, and Abbreviation List

EN 9Q549.2E LA 3.

PWM Pulse Width Modulation QRC Quasi Resonant Converter QTNR Quality Temporal Noise Reduction QVCP Quality Video Composition Processor RAM Random Access Memory RGB Red, Green, and Blue. The primary

color signals for TV. By mixing levels of R, G, and B, all colors (Y/C) are

reproduced. RC Remote Control RC5 / RC6 Signal protocol from the remote

control receiver RESET RESET signal ROM Read Only Memory RSDS Reduced Swing Differential Signalling

data interface R-TXT Red TeleteXT SAM Service Alignment Mode S/C Short Circuit SCART Syndicat des Constructeurs

d'Appareils Radiorécepteurs et

Téléviseurs SCL Serial Clock I

SCL-F CLock Signal on Fast I

C bus SD Standard Definition SDA Serial Data I

SDA-F DAta Signal on Fast I

C bus SDI Serial Digital Interface, see “ITU-656” SDRAM Synchronous DRAM SECAM SEequence Couleur Avec Mémoire.

Color system mainly used in France and East Europe. Color carriers=

4.406250 MHz and 4.250000 MHz SIF Sound Intermediate Frequency SMPS Switched Mode Power Supply SoC System on Chip SOG Sync On Green SOPS Self Oscillating Power Supply SPI Serial Peripheral Interface bus; a 4-

wire synchronous serial data link

standard S/PDIF Sony Philips Digital InterFace SRAM Static RAM SRP Service Reference Protocol

Y Luminance signal Y/C Luminance (Y) and Chrominance (C)

signal

YPbPr Component video. Luminance and

scaled color difference signals (B-Y and R-Y)

YUV Component video

Mechanical Instructions

EN 10 Q549.2E LA4.

4. Mechanical Instructions

Index of this chapter:

4.1 Cable Dressing and Taping

4.2 Service Positions

4.3 Assy/Panel Removal

4.4 Set Re-assembly

Notes:

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

4.1 Cable Dressing and Taping

Mechanical Instructions

EN 11Q549.2E LA 4.

Figure 4-2 Cable dressing 37"

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Mechanical Instructions

EN 12 Q549.2E LA4.

4.2 Service Positions

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

• The buffers from the packaging.

• Foam bars (created for Service).

4.2.1 Foam Bars

Figure 4-4 Foam bars

The foam bars (order code 3122 785 90580 for two pieces) can be used for all types and sizes of Flat TVs. See Figure 4-4

for details. Sets with a display of 42" and larger, require four foam bars [1]. Ensure that the foam bars are always supporting the cabinet and never only the display. Caution: Failure to follow these guidelines can seriously damage the display! By laying the TV face down on the (ESD protective) foam bars,

4.3.3 Ambi Light

Each Ambi Light unit is mounted on a subframe. Refer to

Figure 4-5

for details.

Figure 4-5 Ambi Light unit

1. Remove the Ambi Light cover [1].

2. Unplug the connector(s).

3. The PWB can now be taken from the subframe. When defective, replace the whole unit. Note: the screws that secure the AmbiLight units are longer than the other screws.

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Required for sets

42"

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Mechanical Instructions

EN 13Q549.2E LA 4.

1. Remove the Main Supply Panel as earlier described.

2. Remove the stand [1] and its subframe [2].

3. Now you gain access the IR & LED board. When defective, replace the whole unit.

4.3.6 Piezo Touch Control Panel

The flexfoil between Piezo Flexfoil Assy (mounted on the plastic rim of the set), and the PWB as described below, is extremely vulnerable. Do not pull hard at the PWB or flexfoil. Once the flexfoil has been damaged, the entire plastic rim of the set (with the touch-control pads) has to be swapped!

The Piezo Touch Control Panel PWB contains ESD sensitive components, implying that necessary industrial ESD precautions must be taken during removing or remounting. Refer to Figure 4-7

, Figure 4-8 and Figure 4-9 for details.

Figure 4-9 Piezo Touch Control Panel -3-

1. To unplug the flexfoil connector, first the outer part of the connector has to be moved upwards [3], before this part can be turned sidewards [4] as shown in the picture. Now the flexfoil can be removed from the connector and the PWB can be taken out of the set.

When defective, replace the whole unit.

4.3.7 Small Signal Board (SSB)

Caution: It is mandatory to remount screws at their original

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

1. Remove the Wi-Fi module that is mounted on the SSB.

2. Unplug all connectors.

3. Remove the screws that secure the board.

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

4.3.8 LCD Panel

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Mechanical Instructions

EN 14 Q549.2E LA4.

Figure 4-10 LCD Panel -1-

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Service Modes, Error Codes, and Fault Finding

EN 15Q549.2E LA 5.

5. Service Modes, Error Codes, and Fault Finding

Index of this chapter:

5.1 Test Points

5.2 Service Modes

5.3 Stepwise Start-up

5.4 Service Tools

5.5 Error Codes

5.6 The Blinking LED Procedure

5.7 Protections

5.8 Fault Finding and Repair Tips

5.9 Software Upgrading

5.1 Test Points

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

Perform measurements under the following conditions:

• Service Default Mode.

• Video: Colour bar signal.

• Audio: 3 kHz left, 1 kHz right.

5.2 Service Modes

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

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. (see also section “5.4.1 ComPair

”).

Note: For the new model range, a new remote control (RC) is

• All service-unfriendly modes (if present) are disabled, like: – (Sleep) timer. – Child/parental lock. – Picture mute (blue mute or black mute). – Automatic volume levelling (AVL). – Skip/blank of non-favourite pre-sets.

How to Activate SDM

For this chassis there are two kinds of SDM: an analog SDM and a digital SDM. Tuning will happen according Table 5-1

• Analog SDM: use the standard RC-transmitter and key in the code “062596”, directly followed by the “MENU” (or HOME) button. Note: It is possible that, together with the SDM, the main menu will appear. To switch it “off”, push the “MENU”(or HOME) button again.

• Digital SDM: use the standard RC-transmitter and key in the code “062593”, directly followed by the “MENU” (or HOME) button. Note: It is possible that, together with the SDM, the main menu will appear. To switch it “off”, push the “MENU” (or HOME) button again.

• Analog SDM can also be activated by grounding for a moment the solder pad on the SSB, with the indication “SDM” (see Service mode pad

SDM

Service Modes, Error Codes, and Fault Finding

EN 16 Q549.2E LA5.

• To view operation hours.

• To display (or clear) the error code buffer.

How to Activate SAM

Via a standard RC transmitter: Key in the code “062596” directly followed by the “INFO” button. After activating SAM with this method a service warning will appear on the screen, continue by pressing the “OK” button on the RC.

Contents of SAM (see also Table 6-4

)

• Hardware Info. – A. SW Version. Displays the software version of the

main software (example: Q5492-1.2.3.4 = AAAAB_X.Y.W.Z).

• AAAA= the chassis name.

• B= the SW branch version. This is a sequential number (this is no longer the region indication, as the software is now multi-region).

• X.Y.W.Z= the software version, where X is the main version number (different numbers are not compatible with one another) and Y.W.Z is the sub version number (a higher number is always compatible with a lower number).

– B. STBY PROC Version. Displays the software

version of the stand-by processor.

– C. Production Code. Displays the production code of

the TV, this is the serial number as printed on the back of the TV set. Note that if an NVM is replaced or is initialized after corruption, this production code has to be re-written to NVM. ComPair will foresee in a possibility to do this.

• Operation Hours. Displays the accumulated total of operation hours (not the stand-by hours). Every time the TV is switched “on/off”, 0.5 hours is added to this number.

• Errors (followed by maximum 10 errors). The most recent error is displayed at the upper left (for an error explanation see section “5.5 Error Codes

”).

• Reset Error Buffer. When “cursor right” (or the “OK button) is pressed and then the “OK” button is pressed, the error buffer is reset.

• Alignments. This will activate the “ALIGNMENTS” submenu. See Chapter 6. Alignments.

• Dealer Options. Extra features for the dealers.

TV will go to the Stand-by mode. If the NVM was corrupted or empty before this action, it will be initialized first (loaded with default values). This initializing can take up to 20 seconds.

Figure 5-2 Location of Display Option Code sticker

• Store - go right. All options and alignments are stored when pressing “cursor right” (or the “OK” button) and then the “OK”-button.

• SW Maintenance. – SW Events. Not useful for Service purposes. In case

of specific software problems, the development department can ask for this info.

– HW Events. Not useful for Service purposes. In case

of specific software problems, the development department can ask for this info.

• Operation hours display. Displays the accumulated total of display operation hours. So, this one keeps up the lifetime of the display itself, mainly to compensate the degeneration behaviour.

• Test settings. For development purposes only.

• Development file versions. Not useful for Service purposes, this information is only used by the development department.

• Upload to USB. To upload several settings from the TV to an USB stick, which is connected to the SSB. The items are “Channel list”, “Personal settings”, “Option codes”, “Display-related alignments” and “History list”. First a

directory “repair\” has to be created in the root of the USB stick. To upload the settings select each item

PHILIPS

MODEL:

32PF9968/10

PROD.SERIAL NO:

AG 1A0620 000001

040

39mm

27mm

(CTN Sticker)

Display Option

Code

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Service Modes, Error Codes, and Fault Finding

EN 17Q549.2E LA 5.

• With the “OK” key, it is possible to activate the selected action.

How to Exit SAM

Use one of the following methods:

• Switch the TV set to STAND-BY via the RC-transmitter.

• Via a standard RC-transmitter, key in “00” sequence, or select the “BACK” key.

5.2.3 Customer Service Mode (CSM)

Purpose

When a customer is having problems with his TV-set, he can call his dealer or the Customer Helpdesk. The service technician can then ask the customer to activate the CSM, in order to identify the status of the set. Now, the service technician can judge the severity of the complaint. In many cases, he can advise the customer how to solve the problem, or he can decide if it is necessary to visit the customer. The CSM is a read only mode; therefore, modifications in this mode are not possible. When in this chassis CSM is activated, a testpattern will be displayed during 5 seconds (1 second Blue, 1 second Green and 1 second Red, then again 1 second Blue and 1 second Green). This test pattern is generated by the PNX5100. So if this test pattern is shown, it could be determined that the back end video chain (PNX5100, LVDS, and display) of the SSB is working. When CSM is activated and there is a USB stick connected to the TV, the software will dump the complete CSM content to the USB stick. The file (Csm.txt) will be saved in the root of the USB stick. This info can be handy if no information is displayed.

Also when CSM is activated, the LAYER 1 error is displayed via blinking LED. Only the latest error is displayed. (see also section 5.5 Error Codes

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!

NVM. ComPair will foresee in a possibility to do this. This identification number is the 12nc number of the SSB.

• 12NC display. Shows the 12NC of the display.

• 12NC supply. Shows the 12NC of the supply.

• 12NC “fan board”. Shows the 12NC of the “fan board”module (for sets with LED backlight)

• 12NC “LED Dimming Panel”. Shows the 12NC of the LED dimming Panel (for sets with LED backlight).

Software versions

• 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. Example: Q5492_1.2.3.4

• Standby SW. Displays the built-in stand-by processor software version. Upgrading this software will be possible via ComPair or via USB (see section 5.9 Software

Upgrading).

Example: STDBY_88.68.1.2.

• MOP ambient light SW. Displays the MOP ambient light EPLD SW.

• LED Dimming SW. Displays the LED Dimming EPLD SWversion (for sets with LED backlight).

• Local contrast SW. Displays the MOP local contrast SWversion.

Quality items

• Signal quality. Poor / average /good

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

• HDMI HDCP key. Indicates if the HDMI keys (or HDCP keys) are valid or not. In case these keys are not valid and the customer wants to make use of the HDMI functionality, the SSB has to be replaced.

• Ethernet MAC address. Displays the MAC address present in the SSB.

• Wireless MAC address. Displays the wireless MAC address to support the Wi-Fi functionality.

• BDS key. Indicates if the “BDS level 1” key is valid or not.

• CI slot present. If the common interface module is detected the result will be “YES” or “NO”.

Service Modes, Error Codes, and Fault Finding

EN 18 Q549.2E LA5.

5.3 Stepwise Start-up

When the TV is in a protection state due to an error detected by stand-by software (error blinking is displayed) and SDM is activated via shortcutting the pins on the SSB, the TV starts up until it reaches the situation just before protection. So, this is a kind of automatic stepwise start-up. In combination with the start-up diagrams below, you can see which supplies are present at a certain moment. Important to know is, that if e.g. the 3V3 detection fails and thus error layer 2 = 18 is blinking while the TV is restarted via SDM, the Stand-by Processor will enable the 3V3, but the TV set will not go to protection now. The TV will stay in this situation until it is reset (Mains/AC Power supply interrupted). Caution: in case the start-up in this

mode with a faulty FET 7U08 is done, you can destroy all IC’s supplied by the +3V3, due to overvoltage (12V on 3V3-line). It is recommended to measure first the FET 7U08 or others FET’s on shortcircuit before activating SDM via the service pads.

The abbreviations “SP” and “MP” in the figures stand for:

• SP: protection or error detected by the Stand-by Processor.

• MP: protection or error detected by the MIPS Main Processor.

Active

Semi St by

St by

Mains

off

GoToProtection

-WakeUp requested

-Acquisition needed

-No data Acquisition required

-tact SW pushed

-last status is hibernate after mains ON

- St by requested

-tact SW pushed

WakeUp

requested

WakeUp

requested

(SDM)

GoToProtection

Hibernate

-Tact switch Pushed

-last status is hibernate after mains ON

Tact switch

pushed

Service Modes, Error Codes, and Fault Finding

EN 19Q549.2E LA 5.

Initialise I/O pins of the st-by µP:

- Switch reset-AVCLOW (reset state)

- Switch WP-NandFlash LOW (protected)

- Switch reset-system LOW (reset state)

- Switch reset-5100 LOW (reset state)

- Switch reset-Ethernet LOW (reset state)

- Switch reset-ST7100 LOW (reset state)

- keep reset-NVM high, Audio-reset and Audio-Mute-Up HIGH

Off

Standby Supply starts running.

All standby supply voltages become available .

st-by µP resets

Stand by or

Protection

Mains is applie d

- Switch Audio-Reset high.

It is low in the standby mode if the standby

mode lasted longer than 10s.

start keyboard scanning, RC detection. Wake up reasons are

off.

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

startup will stall the startup. Protection conditions in a

playing set will be ignored. The protection mode will

not be entered.

+12V, +/-12Vs, AL and Bolt-on power

is switched on, followed by the +1V2 DCDC converter

Detect-1 I/O line

High?

Switch ON Platform and display supply by switching

LOW the Standby line.

This enables the +3V3 and +5V converter. As a result, also +5V-tuner, +2V5, +1V8PNX8541 and +1V8-PNX5100 become available.

yes

Enable the DCDC converter for +3V3 and

+5V. (EN ABLE-3V3)

Important remark; the appearance of the +12V will start the +1V2 DCDC converter automatically

Yes

Supply-fault I/O

High?

The supply-fault line is a combination of the DCDC converters and the audio protection line.

1V2 DCDC or class D error:

Layer1: 2

Layer2: 19

Enter protection

Detect2 high received

within 1 second?

Power-OK err or:

Layer1: 3

Layer2: 16

Enter protection

Yes

Supply-fault I/O

High?

3V3 / 5V DCDC or class D error:

Layer1: 2

Layer2: 11

Enter protection

Wait 50ms

Delay of 50ms needed because of the latency of the detect-1 circuit. This delay is also needed for the PNX5100. The reset of the PNX5100 should only be released 10ms after powering the IC.

Detect2 should be polled on the standard 40ms interval and startup should be continued when detect2 becomes high.

Detect -2 I/O line

High?

Disable 3V3, swit ch standby line high and wait 4 seconds

Service Modes, Error Codes, and Fault Finding

EN 20 Q549.2E LA5.

Yes

MIPS reads the wake up reason

from standby µP.

initialize tuner, Master IF and channel

3-th try?

Blink Code as

error code

Bootscript ready

in 1250 ms?

Yes

Enable Alive check mechanism

Wait until AVC starts to

communicate

SW initializatio n

succeeded

within 20s?

Switch Standby

I/O line high.

RPC start (comm. protocol)

Set I²C slave address

of Standby µP to (60h)

Yes

Disable all supply related protections and

switch off the +3V3 +5V DC/DC converter.

switch off the remaining DC/DC

converters

Wait 5ms

Switch AVC PNX854 1

in reset (active low )

Wait 10ms

Switch the NVM reset

line HIGH.

Flash to Ram

image transfer succeeded

within 30s?

Yes

Code =

Layer1: 2

Layer2: 53

Code =

Layer1: 2

Layer2: 15

Timing need to be updated if more mature info is available.

Timing needs to be updated if more matur e info is available.

Downloaded successfully ?

Download firmware into the channel

decoder

Third try? No

Yes

Log channel decoder error:

Layer1: 2

Yes

Initialize audio

Enter protection

Release reset MPEG4 module:

BOLT-ON-IO: High

MPEG4 module will start booting

autonomously.

Wait 3000 ms

Start alive IIC polling

mechanism

POR polling p ositive ?

yes

Log SW event:

STi7100PorFailure

Wait 200 ms

POR polling positive?yes

bootSTi7100PorFailure:

Log HW error

Layer1: 2

Layer2: 38

and generate cold boot

Alive

polling

Log SW event

STi7100AliveFailedError and generate fast cold reboot eventually followed by a cold

reboot.

NOK

Reset-system is switched HIGH by the

AVC at the end of the bootscript

AVC releases Reset-Ethernet when the

end of the AVC boot-script is detected

This cannot be done through the bootscript, the I/O is on the standby µP

Reset- system is connected to USB

From I_17660_125a.eps From I_17660_125a.eps

-reset,

4to1HDMI Mux and channel decoder.

Reset-Audio and Audio-Mute-Up are

switched by MIPS code later on in the

startup process

Reset-syst em is switched HIGH by the

AVC at the end of the bootscript

AVC releases Reset-Ethernet when the

end of the AVC boot-script is detected

Reset-Audio and Audio-Mute-Up are

switched by MIPS code later on in the

startup process

Switch on the display in case of a LED backlight

display by sending the TurnOnDisplay(1) (I²C)

command to the PNX5100

In case of a LED backlight display, a LED DIM panel is present which is fed by the Vdisplay. To power the LED DIM Panel, the Vdisplay switch driven by the PNX5100 must be closed. The display startup sequence is taken care of by the LED DIM panel.

Service Modes, Error Codes, and Fault Finding

EN 21Q549.2E LA 5.

Semi Standby

action holder: AVC

autonomous action

action holder: St-by

Initialize audio and video

processing IC's and functions

according needed use case.

Assert RGB video blanking

and audio mute

Wait until previous on-state is left more than 2

seconds ago. (to prevent LCD display problems)

The assumption here is t hat a fast tog gle (<2s)

can only happen during ON-> SEMI ->ON. In

these stat es, th e AVC is still active an d can

provide the 2s delay. If the transition ON-> SEMI-

>STBY -> SEMI -> ON can be made in less th an 2s,

the semi -> stby transition has to be delayed

until the requirement is met.

Switch Audio -Reset low and w ait 5ms

Constraints taken into account:

- Display may only be started when valid LVDS output clock can be delivered by the AVC.

- Between 5 and 50 ms after power is supplied, display should receive valid lvds clock .

- minimum wait time to switch on the lamp after power up is 200ms.

Wait until valid and stable audio and video , corresponding to

the requested output is delivered by the AVC.

The higher level requirement is that audio and

video should be demuted without transient

effects and that the audio should be demuted

maximum 1s before or at the same time as the

CPipe already generates a valid output

clock in t he sem i -standby st ate : display

startup can start immediately when leaving

the semi-standby state.

wait 250ms (min. = 200ms)

Switch on LCD backlight

(Lamp-ON)

Switch on the display by sending the

TurnOnDisplay(1) (I²C) command to the PNX5100

The timings to be used in

combination with the PanelON

comman d for th is specific d isplay

Service Modes, Error Codes, and Fault Finding

EN 22 Q549.2E LA5.

Semi Standby

action holder: AVC

autonomous action

action holder: St-by

Initialize audio and video

processing IC's and functions

according needed use case.

Assert RGB video blanking

and audio mute

Wait until previous on-state is left more than 2

seconds ago. (to prevent LCD display problems)

The assumption here is t hat a fast tog gle (<2s)

can only happen during ON->SEMI ->ON. In

these stat es, th e AVC is still active and can

provide t he 2s delay. If the tran sition ON -> SEMI-

->STBY-> SEMI -> ON can be made in less than 2s, the semi - > stby transition has to be delayed

until the requirement is met.

Constraints taken into account:

- Display may only be started when valid LVDS output clock can be delivered by the AVC.

- Between 5 and 50 ms after power is supplied, display should receive valid lvds clock .

- minimum wait time to switch on the lamp after power up is 200ms.

- To have a reliable operation of the backlight, the backlight should be driven with a PWM duty cycle of 100% during the first second. Only after this first one or two seconds, the PWM may be set to the required output level (Note that the PWM output should be present before the backlight is switched on). To minimize the artefacts, the picture should only be unblanked after these first seconds.

Wait until valid and stable audio and video , corresponding to the requested

output is delivered by the AVC

AND

[the backlight PWM has been on for 1s (internal inverter LPL displays

CPipe already generates a valid output clock in t he sem i -standby st ate: displa y

startup can start immediately when leaving

the semi-standby state.

wait 250ms (min. = 200ms)

Switch on L CD backlig ht

(Lamp-ON)

Switch off the dimming backlight feature, set

the BOOST control to nominal and make sure

PWM output is set to 100%

Switch on the display by sending the

TurnOnDisplay(1) (I²C) command to the PNX5100

Service Modes, Error Codes, and Fault Finding

EN 23Q549.2E LA 5.

Semi Standby

action holder: AVC

autonomous action

action holder: St-by

Initialize audio and video

processing IC's and functions

according needed use case.

Assert RGB video blanking

and audio mute

Wait until previous on-state is left more than 2

seconds ago. (to prevent LCD display problems)

The assumption here is that a fast toggle (<2s)

can only happen during ON-> SEMI -> ON. In

these stat es, the A VC is still active and can

provide the 2s delay. If the t ransition ON -> SEMI-

>STBY->SEMI->ON can be made in less t han 2s,

the semi -> stby transition has to be delayed

until the requirement is met.

Switch Audio -Reset low and w ait 5ms

Constraints taken into account:

- Display may only be started when valid LVDS output clock can be delivered by the AVC .

- Between 5 and 50 ms after power is supplied, display should receive valid lvds clock .

- minimum wait time to switch on the lamp after power up is 200ms.

Wait until valid and stable audio and video , corresponding to

the requested output is delivered by the AVC.

The higher level requirement is that audio and

video should be demuted without transient

effects and that the audio should be demuted

maximum 1s before or at the same time as the

unblanking of the video.

Release audio mute and wait 100ms before any other audio

handling is done (e.g. volume change)

CPipe already generates a valid output

clock in t he sem i -standby st ate : display

startup can start immediately when leaving

the semi-standby state.

wait 250ms (min. = 200ms)

TBC in def. spec

Switch on L CD backlig ht

(Lamp-ON)

Switch on the display by sending the OUTPUT-

ENABLE (I²C) command to the LED DIM panel

Service Modes, Error Codes, and Fault Finding

EN 24 Q549.2E LA5.

Semi Standby

Active

action holder: AVC

autonomous action

action holder: St-by

Wait 25 0ms ( min. = 2 00ms)

Mute all sound outputs via softmute

Mute all video outputs

switch off LCD backlight

Force ext audio outputs to ground

(I/O: audio reset)

And wait 5ms

Switch off the display by sending the

TurnOnDisplay(0) (I²C) command to the PNX5100

switch o ff Am bilight

Set main amplifier mute (I/O: audio-mute)

Wait 100ms

Wait until Ambilight has faded out

(fixed wait time of x s)

The higher level requirement is that the

backlight may not be switched off before the

ambilight functionality is turned off in case the

set contains a CE IPB inverter supply.

I_17660_129.eps

140308

Service Modes, Error Codes, and Fault Finding

EN 25Q549.2E LA 5.

transfer Wake up reasons to the Stand by µP.

Semi Stand by

action holder: MIPS

autonomous action

action holder: St-by

Disable all supply related protections and switch off

the DC/DC converters (ENABLE-3V3)

Switch OFF all supp lies by swit ching H IGH t he

Standby I/O line

Switch AVC syst em in re set st ate

Switch reset-PNX5100 LOW

Switch reset-ST7100 LOW

Switch Reset-Ethernet LOW

Important remark:

release reset audio 10 sec after

Wait 5ms

Wait 10ms

Switch the NVM reset line HIGH Switch het WP-Nandflash LOW

Delay transition until ramping down of ambient light is

finished. *)

If ambientlight functionality was used in semi -standby

(lampadaire mode), switch off ambient light

*) If this is not performed and the set is switched to standby when the switch off of the ambilights is still ongoing , the lights will switch off abruptly when the supply is cut.

Switch Memories to self-refresh (this creates a more

stable condition when switching off the power).

Service Modes, Error Codes, and Fault Finding

EN 26 Q549.2E LA5.

action holder: MIPS

autonomous action

action holder: St-by

Redefine wake up reasons for protection

state and transfer to stand-by µP.

Log the appropriate err or and

set stand-by flag in NVM

Ask stand-by µP to enter protection state

Switch off LCD lamp supply

Wait 250ms (min. = 200ms)

Switch off LVDS signal

Switch off 12V LCD supply within a time frame of

min. 0.5ms to max. 50ms after LVDS switch off.

If needed to speed up this transition,

this block could be omitted . This is

depending on the outcome of the

safet y invest igat ions .

Disable all supply related protections and switch off

the +1V8 and the +3V3 DC/DC converter.

Switch AVC in r eset state

Wait 10ms

Switch the N VM r eset lin e HI GH.

Service Modes, Error Codes, and Fault Finding

EN 27Q549.2E LA 5.

5.4 Service Tools

5.4.1 ComPair

Introduction

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

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

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

C or UART commands is necessary,

because ComPair takes care of this.

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

4. ComPair features TV software up possibilities.

Specifications

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

How to Connect

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

5.4.2 Memory and Audio Test

With this tool you can test the memory of the PNX8543, as well if the PNX5100 is enabled and audio-testing.

What is needed?

– An USB-stick – “TESTSCRIPT Q549”. Downloadable from the Philips

Service website from the section “Software for Service only”

– A ComPair/service cable (3138 188 75051).

Procedure

Create a directory “JETTFILES” under the root of the USB-stick – Place “MemTestTV543.bin” and “autojett.bin” (available in

“TESTSCRIPT Q549”) under the directory “JETTFILES”

– Install the computer program “BOARDTESTLOGGER”

(available in “TESTSCRIPT Q549”) on the PC

– Connect a “ComPair/service”-cable from the service-

connector in the set, into the “multi function” jack at the front of the ComPair II box : Required settings in ComPair :

- start up the ComPair application.

- Select the correct database (open file “Q549.2E LA”, this will set the ComPair interface in the appropriate mode).

- Close ComPair

– Start up the program “BOARDTESTLOGGER” and select

“COMx”

– Put the USB stick into the TV and start up the TV while

pressing the “i+”-button on a Philips DVD RC6 remote control (it’s also possible to use a TV remote in “DVD”mode)

– On the PC the memory test is shown now. This is also

visible on the TV screen.

– In “BOARDTESTLOGGER” an option “Send extra UART

command” can be found where you can select “AUD1”. This command generates hear test tones of 200, 400, 1000, 2 000, 3 000, 5 000, 8 000 and 12 500Hz.

5.5 Error Codes

5.5.1 Introduction

UART SERVICE

CONNECTOR

UART SERVICE

CONNECTOR

TO I2C SERVICE CONNECTOR

TO TV

RC out

RC in

Optional

Switch

Power ModeLink/

Activity

ComPair II

Multi

function

RS232 /UART

Service Modes, Error Codes, and Fault Finding

EN 28 Q549.2E LA5.

For all errors detected by MIPS which are fatal => rebooting of the TV set (reboot starts after LAYER 1 error blinking), one should short the solder paths (SDM) at start-up from the power OFF state by mains interruption and not via the power button to trigger the SDM via the hardware pins.

• In CSM mode – When entering CSM: error LAYER 1 will be displayed

by blinking LED. Only the latest error is shown.

• In SDM mode – When SDM is entered via Remote Control code or the

hardware pins, LAYER 2 is displayed via blinking LED.

• In the ON state – In “Display error mode”, set with the RC commands

“mute_06250X _OK” LAYER 2 errors are displayed via blinking LED.

• Error display on screen. – In CSM no error codes are displayed on screen. – In SAM the complete error list is shown.

Basically there are three kinds of errors:

• Errors detected by the Stand-by software which lead to protection. These errors will always lead to protection and an automatic start of the blinking LED LAYER 1 error. (see section “5.6 The Blinking LED Procedure

”).

• Errors detected by the Stand-by software which not lead to protection. In this case the front LED should blink the involved error. See also section “5.5 Error Codes

, 5.5.4

Error Buffer, Extra Info”. Note that it can take up several

minutes before the TV starts blinking the error (e.g. LAYER 1 error = 2, LAYER 2 error = 15 or 53).

• Errors detected by main software (MIPS). In this case the error will be logged into the error buffer and can be read out via ComPair, via blinking LED method LAYER 1-2 error, or in case picture is visible, via SAM.

5.5.2 How to Read the Error Buffer

Use one of the following methods:

• On screen via the SAM (only when a picture is visible). E.g.: – 00 00 00 00 00: No errors detected – 23 00 00 00 00: Error code 23 is the last and only

• Via polling on I/O pins going to the stand-by processor.

• Via sensing of analog values on the stand-by processor or the PNX8543.

• Via a “not acknowledge” of an I

C communication.

Take notice that some errors need several minutes before they start blinking or before they will be logged. So in case of problems wait 2 minutes from start-up onwards, and then check if the front LED is blinking or if an error is logged.

Service Modes, Error Codes, and Fault Finding

EN 29Q549.2E LA 5.

Table 5-2 Error code overview

Extra Info

• Rebooting. When a TV is constantly rebooting due to internal problems, most of the time no errors will be logged or blinked. This rebooting can be recognized via a ComPair interface and Hyperterminal (for Hyperterminal settings, see section “5.8 Fault Finding and Repair Tips

, 5.8.6

Logging). It’s shown that the loggings which are generated

by the main software keep continuing. In this case diagnose has to be done via ComPair.

• Error 13 (I

C bus 3 blocked). At the time of release of this

• Error 21 (PNX 5100). When there is no I

C communication towards the PNX5100, the TV set will start rebooting and display LAYER 1 error = 2. Disconnect the mains cord now and start up the TV set with the solder path (SDM) short to ground during start-up to activate the LAYER 2 error blinking. Error “21” will be logged and displayed via the blinking LED procedure after a few moments from start-up. Remark : the rebooting can be recognized via a ComPair interface and Hyperterminal (for Hyperterminal settings, see section “5.8 Fault Finding and Repair Tips

, 5.8.6

Description Layer 1 Layer 2

Monitored by

Error/ Prot

Error Buffer/ Blinking LED Device Defective Board

C3 2 13 MIPS E BL / EB SSB SSB

C2 2 14 MIPS E BL / EB SSB/Display SSB/display

PNX doesn’t boot (HW cause) PNX 5100 doesn’t boot

2 15 Stby µP P BL PNX8543/PNX51XX

C blocked

SSB

12V 3 16 Stby µP P BL / Supply

Inverter or display supply 3 17 MIPS E EB /

1V2, 3V3, 5V to low 2 18 Stby µP P BL / SSB

Temp protection 3 12 MIPS E EB / Display

PNX 5100 2 21 MIPS E EB PNX5100 SSB

HDMI mux 2 23 MIPS E EB TDA9996 SSB

C switch 2 24 MIPS E EB PCA9540 SSB

Boot-NVM PNX5100 2 25 MIPS E EB STM24C08 SSB

Multi Standard demodulator (Micronas IF)

2 27 MIPS E EB DRX3616K

DRX3626K

SSB

ARM (ambilight) 8 28 MIPS E EB NXP LPC2103 AL module or DC/DC

FPGA (Local contrast) 2 29 MIPS E EB Altera SSB

Tuner 2 34 MIPS E EB UV1783S/HD1816 SSB

Fan I2C expander 7 41 MIPS E EB PCA9533 FAN module

T° sensor 7 42 MIPS E EB LM 75 T° sensor

FAN 1 7 43 MIPS E EB FAN

FAN 2 7 44 MIPS E EB FAN

Main NVM 2 / MIPS E X STM24C128 SSB

PNX doesn’t boot (SW cause) 2 53 Stby µP E BL PNX8543 SSB

Display (only 56PFL9954H) 5 64 MIPS E BL / EB Altera Display

Service Modes, Error Codes, and Fault Finding

EN 30 Q549.2E LA5.

logged and displayed via the blinking LED procedure when SDM is switched on.

• Error 42 (Temp sensor). Only applicable for TV sets with an I

C controlled screen.

• Main NVM. When there is no I

C communication towards the main NVM, LAYER 1 error = 2 will be displayed via the blinking LED procedure. In SDM, LAYER 2 error will be blinked as “15”. Errors here can not be logged due to inaccessibility of the NVM device.

• Error 53. This error will indicate that the PNX8543 has read his bootscript (when this would have failed, error 15 would blink) but initialization was never completed because of hardware problems (NAND flash, ...) or software initialization problems. Possible cause could be that there is no valid software loaded (try to upgrade to the latest main software version). Note that it can take a few minutes before the TV starts blinking LAYER 1 error = 2 or in SDM, LAYER 2 error = 53.

• Error 64. Only applicable for TV sets with an I

C controlled

screen .

5.6 The Blinking LED Procedure

5.6.1 Introduction

The blinking LED procedure can be split up into two situations:

• Blinking LED procedure LAYER 1 error. In this case the error is automatically blinked when the TV is put in CSM. This will be only one digit error, namely the one that is referring to the defective board (see table “5-2 Error code

overview”) which causes the failure of the TV. This

approach will especially be used for home repair and call centres. The aim here is to have service diagnosis from a distance.

• Blinking LED procedure LAYER 2 error. Via this procedure, the contents of the error buffer can be made visible via the front LED. In this case the error contains 2 digits (see table “5-2 Error code overview

”) and will be displayed when SDM (hardware pins) is activated. This is especially useful for fault finding and gives more details regarding the failure of the defective board.

• Activate the CSM. The blinking front LED will show only the latest layer 1 error, this works in “normal operation” mode or 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 “5.8 Fault Finding and Repair

Tips, 5.8.6 Logging”).

• Activate the SDM. The blinking front LED will show the entire content of the LAYER 2 error buffer, this works in “normal operation” mode or when SDM (via hardware pins) is activated when the tv set is in protection.

Important remark:

For all errors detected by MIPS which are fatal => rebooting of the TV set (reboot starts after LAYER 1 error blinking), one should short the solder paths at start-up from the power OFF state by mains interruption and not via the power button to trigger the SDM via the hardware pins.

• Transmit the commands “MUTE” - “062500” - “OK” with a normal RC. The complete error buffer is shown. Take notice that it takes some seconds before the blinking LED starts.

• Transmit the commands “MUTE” - “06250x” - “OK” with a normal RC (where “x” is a number between 1 and 5). When x = 1 the last detected error is shown, x = 2

the second last error, etc.... Take notice that it takes some

seconds before the blinking LED starts.

5.7 Protections

5.7.1 Software Protections

Most of the protections and errors use either the stand-by microprocessor or the MIPS controller as detection device. Since in these cases, checking of observers, polling of ADCs, and filtering of input values are all heavily software based, these protections are referred to as software protections. There are several types of software related protections, solving a variety of fault conditions:

• Protections related to supplies: check of the 12V, +5V, +3V3 and 1V2.

• Protections related to breakdown of the safety check

+ 111 hidden pages

Philips 37PFL9604H/12, 32PFL9604H/12, 32PFL9604H/60, 37PFL9604H/60, 56PFL9954H/12 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual