Philips 22PFL2908H/12 Schematic

Colour Television Chassis
VEM1.1E
LA

Contents Page

1. Revision List 2
2. Technical Specs, Diversity, and Connections 2
3. Precautions, Notes, and Abbreviation List 5
4. Mechanical Instructions 9
5. Service Modes and Fault Finding 12
6. Alignments 15
7. Circuit Descriptions 16
8. IC Data Sheets 19
9. Block Diagrams Wiring diagram 2000 series 22" 27 Block diagram 2000 series MB82S platform 28
10. Circuit Diagrams and PWB Layouts Drawing PWB A 17ips61-3 26" to 40" LED Slim Integrated Power Supply 29 30-31 B 17MB82S SSB 32 40-41 J 17LD141-2 IR/LED 42
11. Styling Sheets 2000 series 22" 43
Published by MB/SC 1370 Quality Printed in the Netherlands Subject to modification EN 3122 785 19560
2013-Oct-18
2013 ©
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 Phil ips Electronics N.V.
EN 2 VEM1.1E_LA1.
Revision List

1. Revision List

Manual xxxx xxx xxxx.0
First release.

2. Technical Specs, Diversity, and Connections

Index of this chapter:
2.1
Technical Specifications
Figures can deviate due to the different set executions.
Specifications are indicative (subject to change).

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. Here is product information available, as well as getting started, user
Notes:
manuals, frequently asked questions and software & drivers.

Table 2-1 Described Model Numbers:

24 79 10 11
Mechanics Description Architecture Block Diagrams Schematics Styling
CTN
22PFL2908H/12 2-1 4-1 4.3.1 7.1.2 9.1 9.2 10-1-1 10-2-1 10.3 11.1
Connection Overview
Cable Dressing
Back cover removal
SSB cell layouts
Wiring Diagram
Block diagram
Power Supply
Note: The given Model Numbers are subject to change.
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
SSB
J (IR/LED panel)
Sheet
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2.3 Connections

1
MO DE
o
L
R
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2
3
4
9
5
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7
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Technical Specs, Diversity, and Connections
EN 3VEM1.1E_LA 2.

2.3.1 Side Connections

Figure 2-1 Connection overview (..H/12 series)

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 - Common Interface
32p - See figure 10-2-1
jk
2 - USB2.0
Figure 2-2 USB (type A)
1-+5V k 2 -Data (-) jk 3 -Data (+) jk 4 -Ground Gnd H
3 - Cinch: Video CVBS - In, Audio - In
Ye - Video CVBS 1 V Rd - Audio R 0.5 V Wh - Audio L 0.5 V
4 - Head phone (Output)
Bk - Head phone 80 - 600 / 10 mW ot
/ 75 jq
PP
/ 10 k jq
RMS
/ 10 k jq
RMS
5 - EXT2: Video YPbPr - In, Audio - In
Gn - Video - Y 1 V Bu - Video - Pb 0.7 V Rd - Video - Pr 0.7 V
/ 75 W jq
PP
/ 75 W jq
PP
/ 75 W jq
PP
Wh - Audio - L 0.5 V Rd - Audio - R 0.5 V

2.3.2 Rear Connections

6 - TV ANTENNA - In
Signal input from an antenna, cable or satellite.
7 - HDMI 1: Digital Video, Digital Audio - In
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
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/ 10 k jq
RMS
/ 10 k jq
RMS
Figure 2-3 HDMI (type A) connector
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Technical Specs, Diversity, and Connections
20 - Ground Gnd H
8 - PC IN:VGA
Figure 2-4 VGA connector
1 - Video Red 0.7 V 2 -Video Green 0.7 V 3 -Video Blue 0.7 V
/ 75 W j
PP
/ 75 W j
PP
/ 75 W j
PP
4-n.c. 5 -Ground Gnd H 6 -Ground Red Gnd H 7 -Ground Green Gnd H 8 -Ground Blue Gnd H 9-+5V
+5 V j
DC
10 - Ground Sync Gnd H 11 - Ground Red Gnd H 12 - DDC_SDA DDC data j 13 - H-sync 0 - 5 V j 14 - V-sync 0 - 5 V j 15 - DDC_SCL DDC clock j
9 - Cinch: S/PDIF - Out
Bk - Coaxial 0.4 - 0.6V
/ 75 ohm kq
PP
10 - EXT1: Video RGB/YC - In, CVBS - In/Out, Audio - In/Out
20
21
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1
090121
Figure 2-5 SCART connector
1 -Audio R 0.5 V 2 -Audio R 0.5 V 3 -Audio L 0.5 V
/ 1 k k
RMS
/ 10 k j
RMS
/ 1 k k
RMS
4 -Ground Audio Gnd H 5 -Ground Blue Gnd H 6 -Audio L 0.5 V 7 -Video Blue/C-out 0.7 V 8 -Function Select 0 - 2 V: INT
/ 10 k j
RMS
/ 75 jk
PP
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 j
PP
12 - n.c. 13 - Ground Red Gnd H 14 - Ground P50 Gnd H 15 - Video Red/C 0.7 V 16 - Status/FBL 0 - 0.4 V: INT
/ 75 j
PP
1 - 3 V: EXT / 75 j 17 - Ground Video Gnd H 18 - Ground FBL Gnd H 19 - Video CVBS 1 V 20 - Video CVBS/Y 1 V 21 - Shield Gnd H
/ 75 k
PP
/ 75 j
PP

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 7VEM1.1E_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
2
I
C Inter IC bus
2
I
D Inter IC Data bus
2
I
S Inter IC Sound bus
carrier distance is 6.0 MHz
IF Intermediate Frequency IR Infra Red IRQ Interrupt Request ITU-656 The ITU Radio communication Sector
(ITU-R) is a standards body
subcommittee of the International
Telecommunication Union relating to
radio communication. ITU-656 (a.k.a.
SDI), is a digitized video format used
for broadcast grade video.
Uncompressed digital component or
digital composite signals can be used.
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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
related to the presentation of
multimedia information, standardised
by the Multimedia and Hypermedia
Experts Group. It is commonly used as
a language to describe interactive
television services 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 MTV Mainstream TV: TV-mode with
Consumer TV features enabled (iTV) 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
VCR norm, it is not transmitted off-air) NVM Non-Volatile Memory: IC containing
TV related data such as alignments O/C Open Circuit OSD On Screen Display OAD Over the Air Download. Method of
software upgrade via RF transmission.
Upgrade software is broadcasted in
TS with TV channels. OTC On screen display Teletext and
Control; also called Artistic (SAA5800) P50 Project 50: communication protocol
between TV and peripherals PAL Phase Alternating Line. Color system
mainly used in West Europe (colour
carrier = 4.433619 MHz) and South
America (colour carrier
PAL M = 3.575612 MHz and
PAL N = 3.582056 MHz) PCB Printed Circuit Board (same as “PWB”) PCM Pulse Code Modulation
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Precautions, Notes, and Abbreviation List
PDP Plasma Display Panel PFC Power Factor Corrector (or
Pre-conditioner) PIP Picture In Picture PLL Phase Locked Loop. Used for e.g.
FST tuning systems. The customer
can give directly the desired frequency POD Point Of Deployment: a removable
CAM module, implementing the CA
system for a host (e.g. a TV-set) POR Power On Reset, signal to reset the uP PSDL Power Supply for Direct view LED
backlight with 2D-dimming PSL Power Supply with integrated LED
drivers PSLS Power Supply with integrated LED
drivers with added Scanning
functionality PTC Positive Temperature Coefficient,
non-linear resistor PWB Printed Wiring Board (same as “PCB”) 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
SCL Serial Clock I
Téléviseurs
SCL-F CLock Signal on Fast I SD Standard Definition SDA Serial Data I SDA-F DAta Signal on Fast I
2
C
2
C bus
2
C
2
C bus SDI Serial Digital Interface, see “ITU-656” SDRAM Synchronous DRAM SECAM SEequence Couleur Avec Mémoire.
Colour system mainly used in France and East Europe. Colour 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 SSB Small Signal Board SSC Spread Spectrum Clocking, used to
reduce the effects of EMI STB Set Top Box STBY STand-BY SVGA 800 × 600 (4:3) SVHS Super Video Home System SW Software
SWAN Spatial temporal Weighted Averaging
Noise reduction SXGA 1280 × 1024 TFT Thin Film Transistor THD Total Harmonic Distortion TMDS Transmission Minimized Differential
Signalling TS Transport Stream TXT TeleteXT TXT-DW Dual Window with TeleteXT UI User Interface uP Microprocessor UXGA 1 600 × 1 200 (4:3) V V-sync to the module VESA Video Electronics Standards
Association VGA 640 × 480 (4:3) VL Variable Level out: processed audio
output toward external amplifier VSB Vestigial Side Band; modulation
method WYSIWYR What You See Is What You Record:
record selection that follows main
picture and sound WXGA 1 280 × 768 (15:9) XTAL Quartz crystal XGA 1024 × 768 (4:3) 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
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4. Mechanical Instructions

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Index of this chapter:
4.1
Cable Dressing

4.2 Service Positions

4.3 Assembly/Panel Removal

4.4 Set Re-assembly

4.1 Cable Dressing

Mechanical Instructions
Notes:
Figures below can deviate slightly from the actual situation,
due to the different set executions.
EN 9VEM1.1E_LA 4.

Figure 4-1 Cable dressing ( 22" 2000 series)

4.2 Service Positions
For easy servicing of a TV set, the set should be put face down on a soft flat surface, foam buffers or other specific workshop tools. Ensure that a stable situation is created to perform measurements and alignments. When using foam bars take care that these always support the cabinet and never only the display. Caution: Failure to follow these guidelines can seriously damage the display! Ensure that ESD safe measures are taken.
4.3 Assembly/Panel Removal
Instructions below apply to the 32PFL3606H/12, but will be similar for other models.

4.3.1 Rear Cover (22")

Refer to Figure 4-3 Warning: Disconnect the mains power cord before removing the rear cover.
1. Remove the screw [1] that secures the power cable.
2. Remove the screws [2] that fixate the stand and remove
the stand.
3. At the indicated areas [Blue point] the cover is secured by
clips. Be careful with releasing those.
4. Lift the rear cover from the TV.
for details.
Figure 4-2 VESA bolts removal
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Mechanical Instructions

4.3.2 Speakers

1. Release the tapes which fixate the cabling.
2. Take the speakers out.
When defective, replace the both units.

4.3.3 Power Supply Unit (PSU)

Caution: it is mandatory to remount all different screws at their
original position during re-assembly. Failure to do so may result in damaging the PSU.
1. Release the Power board cables from their clamps.
2. Unplug power connectors from the SSB, as it is not
unplug-able at the PSU itself (soldered connector).
3. Unplug all other connectors from the PSU.
4. Remove all fixation screws from the PSU.
5. The PSU can be taken out of the set now.

4.3.4 Small Signal Board (SSB)

Caution: it is mandatory to remount all different screws at their
original position during re-assembly. Failure to do so may result in damaging the SSB.
1. Release the clips from both the LVDS Flat Foil connectors
2. Release the clamps and unplug all other connectors.
3. Remove the fixation screw from the clamp near the bottom
4. Release the tape near the bottom side of the set from the
5. Remove all other fixation screws from the SSB.
6. Take out the SSB together with its shielding.
that connect with the SSB. Caution: be careful, as these are very fragile connectors! Take the flat foils out of their connectors.
of the SSB, and take the clamp out.
LCD panel.
Figure 4-3 Rear cover removal
7. Remove the screw near the L/R audio connectors.
8. The SSB can now be shifted from the side connector cover,

4.3.5 IR/LED Board

1. Remove the speakers as described earlier.
2. Remove the stand as described earlier.
3. Release the clamps that hold the boards cable.
4. Remove the fixation screws that secure the LCD panel with
5. Lift the LCD Panel from the bezel.
6. Gently release the clips that hold the board and take it out
7. Unplug both the connectors from the IR/LED board.
When defective, replace the whole unit.
then lifted and taken out of the shielding.
the bezel.
from the bezel.
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4.3.6 LCD Panel

1. Remove the SSB as described earlier.
2. Remove the PSU as described earlier.
3. Remove the stand as described earlier.
4. Release the IR/LED board cable from its clamps and
unplug the IR/LED board cable.
5. Remove the fixation screws, that secure the LCD panel
with the bezel.
6. Lift the LCD Panel from the bezel.
7. Remove the fixation screws that secure the panel with the
metal subframe.
8. Release the clip from the LVDS Flat Foil connector that
connect to the LCD panel. Caution: Be careful, as these are very fragile connectors! Take the flat foil out of the connector.
When defective, replace the whole unit.

4.4 Set Re-assembly

To re-assemble the whole set, execute all processes in reverse order.
Notes:
While re-assembling, make sure that all cables are placed and connected in their original position. See Figure 4-1
Pay special attention not to damage the EMC foams on the SSB shields. Ensure that EMC foams are mounted correctly(If available).
Mechanical Instructions
.
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Service Modes and Fault Finding

5. Service Modes and Fault Finding

Index of this chapter:
5.1
Test Points

5.2 Service Modes

5.3 Software Upgrading
5.4 Fault Finding and Repair Tips
versions). Numbering will go from 00 - 99.
- If the sub version number changes, the new version number is written in the NVM.
- If the NVM is fresh, the software identification, version, and cluster will be written to NVM.

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. In this way it is possible to determine which part is defective.
Perform measurements under the following conditions:
Service Default Mode.
Video: Colour bar signal.
Audio: 3 kHz left, 1 kHz right.
5.2 Service Modes
The Service Mode feature is split into two parts:
Service Alignment Mode (SAM).
Customer Service Mode (CSM).
SAM offer features, which can be used by the Service engineer to repair/align a TV set. Some features are:
Display information (“Service Menu” (SAM) indication in upper right corner of screen, error buffer, software version, operating hours, options and option codes, sub menus).
The CSM is a Service Mode that can be enabled by the consumer. The CSM displays diagnosis information, which the customer can forward to the dealer or call centre. In CSM mode, “CSM”, is displayed in the top right corner of the screen. The information provided in CSM and the purpose of CSM is to:
Increase the home repair hit rate.
Decrease the number of nuisance calls.
Solved customers’ problem without home visit.

5.2.2 Service Alignment Mode (SAM)

Purpose
Change and test video settings.
View options.
TV life time
SW number
Factory reset
Diagnose features
Specifications
Operation minutes counter (maximum five digits
displayed).
Software version and option settings display.
Option settings.
Software alignments (White Tone).
How to Activate SAM
To activate SAM, use one of the following methods:
Press menu button firstly. While main menu is on screen
press 4725 consecutively. 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.
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).

5.2.1 General

Next items are applicable to all Service Modes or are general.
Life Timer
During the life time cycle of the TV set, a timer is kept (called “TV Life Time”). It counts the normal operation minutes (not the Stand-by minutes). The actual value of the timer is displayed in SDM and SAM in a decimal value. Every two soft-resets increase the hour by + 60 minutes. Stand-by minutes 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-XX.YY”, where:
AAAAA is the chassis name: VES11E_2.1.4n.
B is the region indication: E = Europe, A = AP/China, U =
NAFTA, L = LATAM.
XX is the main version number: this is updated with a major
change of specification (incompatible with the previous software version). Numbering will go from 01 - 99 and AA - ZZ.
- If the main version number changes, the new version number is written in the NVM.
- If the main version number changes, the default settings are loaded.
YY is the sub version number: this is updated with a minor
change (backwards compatible with the previous
Figure 5-1 Example of SAM
How to Store SAM Settings
All the changes which have been made are stored automatically. It is suffice to enter the new value and just exit.
How to Exit SAM
Use one the following method:
Switch the set to STANDBY by pressing the mains button
on the remote control transmitter or the television set. Note: When the TV is switched “off” by a power interrupt while in SAM, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.

5.2.3 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 diagnose problems and failures in the TV set before making a service call.
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Service Modes and Fault Finding
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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.
Figure 5-2 CSM Menu
How to Activate CSM
Press the MENU button first and quickly press ”123654” on the remote.
Note: Activation of the CSM is only possible if there is no (user) menu on the screen!
The TV set can be identified from this screen by looking at the model and serial no.
Contents of CSM
USB Logging
Video Settings
Audio Settings
Options 1
Options 2
Options 3
Tuning Settings
Source Settings
Diagnostic
USB Operations
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. Win Zip
for Windows or Stuff lt for Mac OS).
3. A USB flash drive (preferably empty).
Note:
1. Only FAT/DOS-formatted flash drives are supported.
2. Only use software update files that can be found on the
http://www.philips.com/support
web site.

5.3.3 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 Menu button followed by “1 2 3 6 5 4” buttons
consecutively on the remote control.
2. Use the up/down cursor keys to find the software version. 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.

5.3.4 Download the latest software

1. Point the web browser to http://www.philips.com/support
2. Find information and software related to the TV.
3. Select the latest software update file and download it to the
PC.
4. Insert a USB flash drive into one of the USB ports of the
PC.
5. Decompress the downloaded ZIP file and copy it to the root
directory of the USB flash drive.

5.3.5 Update the TV software

1. Unplug the mains power cord from your TV.
2. Insert the USB flash drive that contains the software
update files.
3. Press and hold the OK button.
Note: If the USB flash drive is not detected after power up,
disconnect it and re-insert it.
4. Plug the mains power cord back in while holding the OK
button.
5. The led light will start to flash and blink.
6. The first time installation menu will appear.
7. Restart your TV. Your TV has now been updated.
, it is
.
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.

5.3 Software Upgrading

5.3.1 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.

5.3.2 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:
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