Philips 32PFL3405/77 Schematic

Colour Television Chassis
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LA

Contents Page

1. Revision List 2
2. Technical Specifications, Connections 2
3. Precautions, Notes, and Abbreviation List 5
4. Mechanical Instructions 9
5. Service Modes, Error Codes, and Fault Finding 16
6. Alignments 29
7. Circuit Descriptions 31
8. IC Data Sheets 35
9. Block Diagrams Wiring Diagram (32") 41 Wiring Diagram (42") 42 Block Diagram 43
10. Circuit Diagrams and PWB Layouts Drawing PWB SSB: Power SSB: AV Input (B02) 45 56-57 SSB: VGA Input (B03) 46 56-57 SSB: HDMI Input (B04) 47 56-57 SSB: RF Tuner (B05) 48 56-57 SSB: Keyboard/LED/IR Interface (B06) 49 56-57 SSB: MT8222 (B07) 50 56-57 SSB: DDR2 DRAM (B08) 51 56-57 SSB: LVDS Output (B09) 52 56-57 SSB: Audio Amplifier (B10) 53 56-57 SSB: TCON (B11) 54 56-57 SSB: TCON Power (B12) 55 56-57 IR/LED Board (J) 58 59
11. Styling Sheets Styling Sheet 32" - 42" 60
(B01) 44 56-57
©
Copyright 2011 Koninklijke Philips Electronics N.V. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.
Published by MB/WSK 1162 BU TV Consumer Care, the Netherlands Subject to modification EN 3122 785 19001
2011-Feb-18
EN 2 RAM1.0L LA1.
Revision List

1. Revision List

Manual xxxx xxx xxxx.0
First release.
Manual xxxx xxx xxxx.1
Added the following sets to the manual: 32PFL3405/77, 32PFL3415/77, 32PFL3425/77, 32PFL3625/77, and 42PFL3625/77.

2. Technical Specifications, Connections

Index of this chapter:

2.1 Technical Specifications

2.2 Directions for Use

2.3 Connections
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

Model Number Styling Published in
32PFL3405/77
32PFL3415/77
32PFL3425/77
32PFL3605/77
32PFL3615/77
32PFL3625/77
42PFL3605/77
42PFL3615/77
42PFL3625/77
Dali 3122 785 19001
Dali 3122 785 19001
Dali 3122 785 19001
Dali 3122 785 19000
Dali 3122 785 19000
Dali 3122 785 19001
Dali 3122 785 19000
Dali 3122 785 19000
Dali 3122 785 19001
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
2011-Feb-18

2.3 Connections

1
2
4
3
56
78910
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Technical Specifications, Connections
EN 3RAM1.0L LA 2.
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

Figure 2-1 Connection overview

4 - USB2.0
1, 2 - Cinch: Video CVBS - In, Audio - In
Ye - Video CVBS 1 V Wh - Audio L 0.5 V Rd - Audio R 0.5 V
3 - S-Video (Hosiden): Video Y/C - In
1 -Ground Y Gnd H 2 -Ground C Gnd H 3 - Video Y 1 V 4 - Video C 0.3 V
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
/ 75 ohm j
PP
/ 75 ohm j
PP
Figure 2-2 USB (type A)
1-+5V k 2 - Data (-) jk 3 - Data (+) jk 4 - Ground Gnd H
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10
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Technical Specifications, Connections

2.3.2 Rear Connections

5 - Aerial - In
- - IEC-type (EU) Coax, 75 ohm D
6 - Cinch: Audio - Out
Rd - Audio - R 0.5 V Wh - Audio - L 0.5 V
/ 10 kohm kq
RMS
/ 10 kohm kq
RMS
7 - Cinch: Video YPbPr - In, Audio - In
Gn - Video Y 1 V Bu - Video Pb 0.7 V Rd - Video Pr 0.7 V Rd - Audio - R 0.5 V Wh - Audio - L 0.5 V
/ 75 ohm jq
PP
/ 75 ohm jq
PP
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
8 - VGA: Video RGB - In, Mini Jack: Audio - In
Figure 2-3 VGA Connector
1 - Video Red 0.7 V 2 - Video Green 0.7 V 3 - Video Blue 0.7 V
/ 75 ohm j
PP
/ 75 ohm j
PP
/ 75 ohm 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 - n.c. 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 - HDMI 1, 2: Digital Video, Digital Audio - In
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 - 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
10 - Service Connector (UART)
1 - Ground Gnd H 2 - UART_TX Transmit k 3 - UART_RX Receive j
Wh - Audio L 0.5 V Rd - Audio R 0.5 V
/ 10 kohm jo
RMS
/ 10 kohm jo
RMS
2011-Feb-18
Precautions, Notes, and Abbreviation List

3. Precautions, Notes, and Abbreviation List

EN 5RAM1.0L LA 3.
Index of this chapter:

3.1 Safety Instructions

3.2 Warnings

3.3 Notes

3.4 Abbreviation List
3.1 Safety Instructions
Safety regulations require the following during a repair:
Connect the set to the Mains/AC Power via an isolation transformer (> 800 VA).
Replace safety components, indicated by the symbol h, only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard.
Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to the following points:
Route the wire trees correctly and fix them with the mounted cable clamps.
Check the insulation of the Mains/AC Power lead for external damage.
Check the strain relief of the Mains/AC Power cord for proper function.
Check the electrical DC resistance between the Mains/AC Power plug and the secondary side (only for sets that have a Mains/AC Power isolated power supply):
1. Unplug the Mains/AC Power cord and connect a wire
between the two pins of the Mains/AC Power plug.
2. Set the Mains/AC Power switch to the “on” position
(keep the Mains/AC Power cord unplugged!).
3. Measure the resistance value between the pins of the
Mains/AC Power plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be between 4.5 M and 12 M.
4. Switch “off” the set, and remove the wire between the
two pins of the Mains/AC Power plug.
Check the cabinet for defects, to prevent touching of any inner parts by the customer.
Where necessary, measure the waveforms and voltages
with (D) and without (E) aerial signal. Measure the voltages in the power supply section both in normal operation (G) and in stand-by (F). These values are indicated by means of the appropriate symbols.

3.3.2 Schematic Notes

All resistor values are in ohms, and the value multiplier is often used to indicate the decimal point location (e.g. 2K2 indicates 2.2 k).
Resistor values with no multiplier may be indicated with either an “E” or an “R” (e.g. 220E or 220R indicates 220 ).
All capacitor values are given in micro-farads (10 nano-farads (n 10
Capacitor values may also use the value multiplier as the decimal point indication (e.g. 2p2 indicates 2.2 pF).
An “asterisk” (*) indicates component usage varies. Refer to the diversity tables for the correct values.
The correct component values are listed on the Philips Spare Parts Web Portal.

3.3.3 Spare Parts

For the latest spare part overview, consult your Philips Spare Part web portal.

3.3.4 BGA (Ball Grid Array) ICs

Introduction
For more information on how to handle BGA devices, visit this URL: http://www.atyourservice-magazine.com “Magazine”, then go to “Repair downloads”. Here you will find Information on how to deal with BGA-ICs.
BGA Temperature Profiles
For BGA-ICs, you must use the correct temperature-profile. Where applicable and available, this profile is added to the IC Data Sheet information section in this manual.
-9
), or pico-farads (p 10
. Select
-12
-6
),
).
3.2 Warnings
All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD w). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are connected with the same potential as the mass of the set by a wristband with resistance. Keep components and tools also at this same potential.
Be careful during measurements in the high voltage section.
Never replace modules or other components while the unit is switched “on”.
When you align the set, use plastic rather than metal tools. This will prevent any short circuits and the danger of a circuit becoming unstable.
3.3 Notes

3.3.1 General

Measure the voltages and waveforms with regard to the chassis (= tuner) ground (H), or hot ground (I), depending on the tested area of circuitry. The voltages and waveforms shown in the diagrams are indicative. Measure them in the Service Default Mode with a colour bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3).

3.3.5 Lead-free Soldering

Due to lead-free technology some rules have to be respected by the workshop during a repair:
Use only lead-free soldering tin. If lead-free solder paste is required, please contact the manufacturer of your soldering equipment. In general, use of solder paste within workshops should be avoided because paste is not easy to store and to handle.
Use only adequate solder tools applicable for lead-free soldering tin. The solder tool must be able: – To reach a solder-tip temperature of at least 400°C. – To stabilize the adjusted temperature at the solder-tip. – To exchange solder-tips for different applications.
Adjust your solder tool so that a temperature of around 360°C - 380°C is reached and stabilized at the solder joint. Heating time of the solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400°C, otherwise wear-out of tips will increase drastically and flux-fluid will be destroyed. To avoid wear-out of tips, switch “off” unused equipment or reduce heat.
Mix of lead-free soldering tin/parts with leaded soldering tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If this cannot be avoided, carefully clear the solder-joint from old tin and re-solder with new tin.

3.3.6 Alternative BOM identification

It should be noted that on the European Service website, “Alternative BOM” is referred to as “Design variant”.
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EN 6 RAM1.0L LA3.
Precautions, Notes, and Abbreviation List
The third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific TV set. In general, it is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different suppliers. This will then result in sets which have the same CTN (Commercial Type Number; e.g. 28PW9515/12) but which have a different B.O.M. number. By looking at the third digit of the serial number, one can identify which B.O.M. is used for the TV set he is working with. If the third digit of the serial number contains the number “1” (example: AG1B033500001), then the TV set has been manufactured according to B.O.M. number 1. If the third digit is a “2” (example: AG2B0335000001), then the set has been produced according to B.O.M. no. 2. This is important for ordering the correct spare parts! For the third digit, the numbers 1...9 and the characters A...Z can be used, so in total: 9 plus 26= 35 different B.O.M.s can be indicated by the third digit of the serial number.
Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production centre (e.g. AG is Bruges), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the production year, and digits 7 and 8 refer to production week (in example below it is 2006 week 17). The 6 last digits contain the serial number.
MODEL :
PROD.NO:
32PF9968/10
AG 1A0617 000001
MADE IN BELGIUM
220-240V 50/60Hz
VHF+S+H+UHF
S
10000_024_090121.eps
~
BJ3.0E LA
Figure 3-1 Serial number (example)

3.3.7 Board Level Repair (BLR) or Component Level Repair (CLR)

If a board is defective, consult your repair procedure to decide if the board has to be exchanged or if it should be repaired on component level. If your repair procedure says the board should be exchanged completely, do not solder on the defective board. Otherwise, it cannot be returned to the O.E.M. supplier for back charging!

3.3.8 Practical Service Precautions

It makes sense to avoid exposure to electrical shock.
While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard.
Always respect voltages. While some may not be
dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.
128W
100105

3.4 Abbreviation List

0/6/12 SCART switch control signal on A/V
board. 0 = loop through (AUX to TV), 6 = play 16 : 9 format, 12 = play 4 : 3 format
AARA Automatic Aspect Ratio Adaptation:
algorithm that adapts aspect ratio to remove horizontal black bars; keeps the original aspect ratio
ACI Automatic Channel Installation:
algorithm that installs TV channels directly from a cable network by
means of a predefined TXT page ADC Analogue to Digital Converter AFC Automatic Frequency Control: control
signal used to tune to the correct
frequency AGC Automatic Gain Control: algorithm that
controls the video input of the feature
box AM Amplitude Modulation AP Asia Pacific AR Aspect Ratio: 4 by 3 or 16 by 9 ASF Auto Screen Fit: algorithm that adapts
aspect ratio to remove horizontal black
bars without discarding video
information ATSC Advanced Television Systems
Committee, the digital TV standard in
the USA ATV See Auto TV Auto TV A hardware and software control
system that measures picture content,
and adapts image parameters in a
dynamic way AV External Audio Video AVC Audio Video Controller AVIP Audio Video Input Processor B/G Monochrome TV system. Sound
carrier distance is 5.5 MHz BDS Business Display Solutions (iTV) BLR Board-Level Repair BTSC Broadcast Television Standard
Committee. Multiplex FM stereo sound
system, originating from the USA and
used e.g. in LATAM and AP-NTSC
countries B-TXT Blue TeleteXT C Centre channel (audio) CEC Consumer Electronics Control bus:
remote control bus on HDMI
connections CL Constant Level: audio output to
connect with an external amplifier CLR Component Level Repair ComPair Computer aided rePair CP Connected Planet / Copy Protection CSM Customer Service Mode CTI Color Transient Improvement:
manipulates steepness of chroma
transients CVBS Composite Video Blanking and
Synchronization DAC Digital to Analogue Converter DBE Dynamic Bass Enhancement: extra
low frequency amplification DCM Data Communication Module. Also
referred to as System Card or
Smartcard (for iTV). DDC See “E-DDC” D/K Monochrome TV system. Sound
carrier distance is 6.5 MHz DFI Dynamic Frame Insertion
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Precautions, Notes, and Abbreviation List
EN 7RAM1.0L LA 3.
DFU Directions For Use: owner's manual DMR Digital Media Reader: card reader DMSD Digital Multi Standard Decoding DNM Digital Natural Motion DNR Digital Noise Reduction: noise
reduction feature of the set DRAM Dynamic RAM DRM Digital Rights Management DSP Digital Signal Processing DST Dealer Service Tool: special remote
control designed for service
technicians DTCP Digital Transmission Content
Protection; A protocol for protecting
digital audio/video content that is
traversing a high speed serial bus,
such as IEEE-1394 DVB-C Digital Video Broadcast - Cable DVB-T Digital Video Broadcast - Terrestrial DVD Digital Versatile Disc DVI(-d) Digital Visual Interface (d= digital only) E-DDC Enhanced Display Data Channel
(VESA standard for communication
channel and display). Using E-DDC,
the video source can read the EDID
information form the display. EDID Extended Display Identification Data
(VESA standard) EEPROM Electrically Erasable and
Programmable Read Only Memory EMI Electro Magnetic Interference EPG Electronic Program Guide EPLD Erasable Programmable Logic Device EU Europe EXT EXTernal (source), entering the set by
SCART or by cinches (jacks) FDS Full Dual Screen (same as FDW) FDW Full Dual Window (same as FDS) FLASH FLASH memory FM Field Memory or Frequency
Modulation FPGA Field-Programmable Gate Array FTV Flat TeleVision Gb/s Giga bits per second G-TXT Green TeleteXT H H_sync to the module HD High Definition HDD Hard Disk Drive HDCP High-bandwidth Digital Content
Protection: A “key” encoded into the
HDMI/DVI signal that prevents video
data piracy. If a source is HDCP coded
and connected via HDMI/DVI without
the proper HDCP decoding, the
picture is put into a “snow vision” mode
or changed to a low resolution. For
normal content distribution the source
and the display device must be
enabled for HDCP “software key”
decoding. HDMI High Definition Multimedia Interface HP HeadPhone I Monochrome TV system. Sound
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. 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 (color
carrier= 4.433619 MHz) and South
America (color carrier PAL M=
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EN 8 RAM1.0L LA3.
Precautions, Notes, and Abbreviation List
3.575612 MHz and PAL N= 3.582056
MHz) PCB Printed Circuit Board (same as “PWB”) PCM Pulse Code Modulation 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
Téléviseurs SCL Serial Clock I 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.
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 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 × 1200 (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 1 024 × 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
2011-Feb-18

4. Mechanical Instructions

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EN 9RAM1.0L LA 4.
Index of this chapter:

4.1 Cable Dressing

4.2 Service Positions
4.3 Assembly/Panel Removal
4.4 Set Re-assembly.
4.1 Cable Dressing
Notes:
Figures below can deviate slightly from the actual situation, due to the different set executions.

Figure 4-1 Cable dressing (32")

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Mechanical Instructions

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.

Figure 4-2 Cable dressing (42")

2011-Feb-18

4.3 Assembly/Panel Removal

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4.3.1 Rear Cover

Mechanical Instructions
EN 11RAM1.0L LA 4.
Figure 4-3 Rear cover removal (32")
Figure 4-4 Rear cover removal (42")
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Warning: Disconnect the mains power cord before removing
the rear cover. See Figure 4-3
1. Remove the 3 different kind of fixation screws that secure the rear cover.
2. Lift the rear cover from the TV. Make sure that wires and flat foils are not damaged while lifting the rear cover from the set.

4.3.2 Speakers

and Figure 4-4.
Mechanical Instructions
Figure 4-5 Speakers, PSU & SSB removal (32")
Figure 4-6 Speakers, PSU & SSB removal (42")
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Mechanical Instructions
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EN 13RAM1.0L LA 4.
See Figure 4-5 and Figure 4-6.
1. Unplug the speaker connector [1] from the SSB and remove the wire wrap from this cable.

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. See Figure 4-5
1. Unplug all connectors [3] from the PSU.
2. Remove all fixation screws [4] from the PSU.
3. The PSU can now be taken out of the set.
When defective, replace the whole unit.

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. See Figure 4-5
1. Release the clips from both the LVDS Flat Foil connectors [5]. Caution: be careful, as these are very fragile connectors! Take the flat foils out of their connectors.
2. Unplug all other connectors [1] and [6].
3. Remove grounding screws [7] from the stand support.
4. Remove all other fixation screws [8] from the SSB.
5. The SSB can now be lifted upwards away from the bottom shield cover. Caution: be careful not to damage the bottom shielding between the SSB and the plastic stand-off.
and Figure 4-6.
and Figure 4-6.
2. Remove the fixation screws from the speakers [2].
3. Take the speakers out. When defective, replace the whole unit.

4.3.5 Stand support plate Figure 4-8 Stand support plate (42")

See Figure 4-7
1. Remove the SSB as described earlier.
2. Remove the PSU as described earlier.
3. Remove shielding fixation screws [1]. See Figure 4-7
4. Remove stand support plate fixation screws [2].
5. Lift up the support plate together with the stand.
and Figure 4-8.
Figure 4-7 Stand support plate (32")
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4.3.6 Bezel removal

Mechanical Instructions
Figure 4-9 Bezel removal (32")
See Figure 4-9
1. Remove the speakers as described earlier.
2. Remove the panel holders [3] (42" version only).
3. Remove the other fixation screws [1] and [2].
4. Lift up the LCD panel.
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and Figure 4-10.
Figure 4-10 Bezel removal (42")
Mechanical Instructions
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4.3.7 IR/LED Board

Figure 4-11 IR/LED Board
1. Remove the bezel as described earlier.
2. Unplug the connectors from the IR/LED board.
3. Release the clips that hold the board and take it from the bezel, see Figure 4-11
.
When defective, replace the whole unit.

4.3.8 Keyboard Control Board

1. Remove the bezel as described earlier.
2. Unplug the connector from the Keyboard Control Board.
3. Remove the fixation screws from the Keyboard Control Board and take unit out.
When defective, replace the whole unit.
1. Remove the SSB as described earlier.
2. Remove the PSU as described earlier.
3. Remove the stand support plate as described earlier.
4. Remove the bezel as described earlier.
5. Remove the Vesa spacer as shown in Figure 4-12
by using
a 10 m.m. wrench. Note it has been secured with
Loctite 2440.
6. Lift the LCD Panel from the bezel.
Returning a defect LCD panel
To return a defect LCD panel to the factory, all boards, cabling, mechanical supports, shieldings, clamps, spacers, the bezel and tapes have to be removed from the panel, see Figure 4-13 Be sure to carefully pack the area’s of the panel that are visible during normal use.
.

4.3.9 LCD removal

Figure 4-12 Vesa spacer

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.
and Figure 4-2.
Figure 4-13 LCD panel
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Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

Index of this chapter:

5.1 Service Modes

5.2 Service Tools
5.3 Software Upgrading
5.4 Error Codes
5.5 Fault Finding and Repair Tips
5.1 Service Modes
The Customer Service Mode (CSM) is used for communication between the call centre and the customer, while the Service Alignment Mode (SAM) offers several features for the service technician. The Standard Default Mode (SDM) creates a pre­defined setting.
This chassis also offers the option of using ComPair, a hardware interface between a computer and the TV chassis. It offers the abilities of structured troubleshooting, error code reading, and software version read-out for all chassis.

5.1.1 Service Default Mode (SDM)

Purpose
To create a pre-defined setting, to get the same measurement results as given in this manual
To start the blinking LED procedure where only Layer 2 errors are displayed (see also Table 5-1
).
Figure 5-1 CSM Menu [1/3]
How to Activate
Use the standard RC transmitter and key in the code “062596”, directly followed by the “MENU” button.
How to Exit
Switch the set to STANDBY.

5.1.2 Customer Service Mode (CSM)

Purpose
The Customer Service Mode shows error codes and information on the TV's operation settings.The call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set.This helps the call centre to diagnose problems and failures in the TV set before making a service call. The CSM is a read-only mode; therefore, modifications are not possible in this mode.
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!
Figure 5-2 CSM Menu [2/3]
Figure 5-3 CSM Menu [3/3]
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How to Navigate
Toggling between menus CSM1, -2 and -3 can be done by means of the “CURSOR-DOWN/UP” knob.
CSM1
Set Type Philips Model type number (16 characters maximum)
Production code Displays the production 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. ComPair will foresee a in possibility to do this.
Service Modes, Error Codes, and Fault Finding
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TO TV
PC
HDMI I
2
C only
Optional power
5V DC
ComPair II Developed by Philips Brugge
RC out
RC in
Optional
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Power ModeLink/
Activity
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Installation date Installation date.
Option code Displays the option code.
Codes Displays the latest 5 error codes status. Refer to 5-1 Error codes
.
SSB Displays the 12NC of the SSB (Small Signal Board).
Display Displays the 12NC of the display (LCD Panel).
PSU Displays the 12NC of PSU (Power Supply Unit).
CSM2
Current Main SW Main software version.
Standby SW Standby software version.
SW version of other uP Other uP software version if applicable.
NVM-version NVM version.
CSM3
Signal Quality/Present Digital percentage and analog Yes/No.
Child lock Child lock active/non-active.
HDCP keys Detect and display HDCP keys: Valid/Non­valid.
HDMI audio format input stream Indication of HDMI audio input stream format e.g. Dolby TrueHD, DTS-HD Master Audio, MPCM.
HDMI video format input stream Indication of HDMI video input stream format e.g. 576i50Hz, 576p50Hz, 720p50Hz, 1080i50Hz, 1080p50Hz.
How to Exit CSM
Press “MENU” on the RC-transmitter.

5.1.3 Service Alignment Mode (SAM)

How to enter
To enter the factory mode, use the following method:
Press the following key sequence on the remote control transmitter: “062596” directly followed by the “INFO” button.
After entering the service alignment mode, the following screen is visible (refer to Figure 5-4
).

5.2 Service Tools

5.2.1 ComPair

Introduction
ComPair (Computer Aided Repair) is a Service tool for Philips Consumer Electronics products. and offers the following:
1. ComPair helps to quickly get an understanding on how to repair the chassis in a short and effective way.
2. ComPair allows very detailed diagnostics and is therefore capable of accurately indicating problem areas. No knowledge on I because ComPair takes care of this.
3. ComPair speeds up the repair time since it can automatically communicate with the chassis (when the uP is working) and all repair information is directly available.
4. ComPair features TV software upgrade possibilities.
Specifications
ComPair consists of a Windows based fault finding program and an interface box between PC and the (defective) product. The ComPair II interface box is connected to the PC via an USB cable. For the TV chassis, the ComPair interface box and the TV communicate via a bi-directional cable via the service connector(s). The ComPair fault finding program is able to determine the problem of the defective television, by a combination of automatic diagnostics and an interactive question/answer procedure.
How to Connect
This is described in the chassis fault finding database in ComPair.
2
C or UART commands is necessary,
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Figure 5-4 Example of SAM
How to Navigate
The up/down cursor keys can be used to navigate through the menu, while with the Left/Right cursor the values can be changed.
How to Store
Choose “DO”, and press the “OK” button.
How to go one level up in the menu
Press the MENU button.
How to Exit
Go up in the menu to the root and switch the set to STANDBY.
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Figure 5-5 ComPair II interface connection
Caution: It is compulsory to connect the TV to the PC as
shown in the picture above (with the ComPair interface in between), as the ComPair interface acts as a level shifter. If one connects the TV directly to the PC (via UART), ICs will be damaged!
How to Order
ComPair II order codes:
ComPair II interface: 3122 785 91020.
Programming software can be downloaded from the Philips Service portal.
ComPair UART interface cable for RAM1.1x xx. 3138 188 75051.
Note: While having problems, contact the local support desk.
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5.3 Software Upgrading

5.3.1 Introduction

Philips continuously tries to improve its products, and we recommend that you update the TV software when updates are available. Software update files can be obtained from your dealer or can be downloaded from the following website:
http://www.philips.com/support
Preparing a portable memory for software upgrade
You require the following:
1. A personal computer connected to the Internet.
2. An archive utility that supports the ZIP-format (e.g. “WinZip” for Windows or “Stufflt” for Mac OS).
3. A USB flash drive (preferably empty).
Note:
1. Only FAT/DOS-formatted flash drives are supported.
2. Only use software update files that can be found on the Philips Service Portal.

5.3.2 Check the current TV software version

Before starting the software upgrade procedure, it is advised to check the current TV software version:
1. Press the “Menu” button on your remote control.
2. Select “Setup” and press “OK”, then select [Software update] > [Current software].
If the current software version of your TV is the same as the latest update file found on the Philips Service Portal, it is not necessary to update the TV software.
Service Modes, Error Codes, and Fault Finding
Figure 5-6 Update the TV software 1

5.3.3 Download the latest software

1. Point your web browser to the Philips Service Portal.
2. Find information and software related to your TV.
3. Select the latest software update file and download it to your PC.
4. Insert a USB flash drive into one of the USB ports of your PC.
5. Decompress the downloaded ZIP file and copy the “autorun.upg” to the root directory of the USB flash drive.

5.3.4 Update the TV software

1. Power off your TV and disconnect all memory devices.
2. Insert the USB flash drive that contains the software update file.
3. Switch on your TV, and TV will display the Main Menu upon detection of USB portable.
4. Select [Setup] and press OK. See Figure 5-6 Note: If the USB flash drive is not detected after power up, disconnect it and re-insert it.
5. Select [Software update] > [Local updates] and press OK. See Figure 5-7
and Figure 5-8.
6. When prompted, select [Cancel] or [OK] and press OK. See Figure 5-9
.
7. To proceed, In next menu select [Start] and press OK to start software updates. See Figure 5-10
.
8. Upgrading will now begins and the status of the updating progress will be displayed. See Figure 5-11
9. When the TV software is updated, the TV automatically restarts and the TV starts up with the new software.
Figure 5-7 Update the TV software 2
.
Figure 5-8 Update the TV software 3
.
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Figure 5-9 Update the TV software 4
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