Philips LC9.2A LA Schematic

Colour Television Chassis
LA
18610_000_090602.eps
090604

Contents Page Contents Page

1. Revision List 2
2. Technical Specifications and Connections 2
3. Precautions, Notes, and Abbreviation List 5
4. Mechanical Instructions 9
5. Service Modes, Error Codes, and Fault Finding 14
6. Alignments 28
7. Circuit Descriptions 32
8. IC Data Sheets 33
9. Block Diagrams Wiring Diagram 32" (P & S) 37 Wiring Diagram 42" & 47" (P & S) 38 Wiring Diagram 42" & 47" (Frame, 100 Hz) 39 Block Diagram Video 40 Block Diagram Audio 41 Block Diagram Control & Clock Signals 42 Block Diagram I2C 43 Supply Lines Overview 44
10. Circuit Diagrams and PWB Layouts Diagram PWB Interface Ambilight: Interface + DC-DC Interface Ambilight: Dual DC-DC (AB2) 46 48 Interface Ambilight: Microcontroller (AB3) 47 48 6 LED Low-Pow: Microcontroller Liteon (AL1) 49 52 6 LED Low-Pow: Microcontroller Liteon (AL2) 50 52 6 LED Low-Pow: LED Liteon (AL3) 51 52 8 LED Low-Pow: Microcontroller Liteon (AL1) 53 57 8 LED Low-Pow: Microcontroller Liteon (AL2) 54 57 8 LED Low-Pow: LED Liteon (AL3) 55 57 8 LED Low-Pow: LED Drive Liteon (AL4) 56 57 12 LED Low-Pow: Microcontroller Liteon (AL1) 58 62 12 LED Low-Pow: Microcontroller Liteon (AL2) 59 62 12 LED Low-Pow: LED Liteon (AL3) 60 62 12 LED Low-Pow: LED Drive (AL4) 61 62 SSB: DC/DC (B01) 63 80-85 SSB: Tuner & Analog demodulator (B02A) 64 80-85
©
Copyright 2009 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.
(AB1) 45 48
SSB: Class-D & Muting (B03) 65 80-85 SSB: MTK Power (B04A) 66 80-85 SSB: GDDR3 (B04B) 67 80-85 SSB: Flash & EJTAG (B04C) 68 80-85 SSB: Display interface - LVDS (B04D) 69 80-85 SSB: Ambilight (B04E) 70 80-85 SSB: HDMI & MUX (B05) 71 80-85 SSB: Digital I/O - Ethernet (provisional) (B06A) 72 80-85 SSB: Analog I/O - YPbPr (B06B) 73 80-85 SSB: Analog I/O - Cinch (B06C) 74 80-85 SSB: Side - A/V & USB (B06D) 75 80-85 SSB: VGA (B06E) 76 80-85 SSB: BDS iTV (B07) 77 80-85 SSB: SRP List Explanation 78 SSB: SRP List 79 80-85 Digital Bolt-On: Power 86 Digital Bolt-On: DDR Termination 87 Digital Bolt-On: DDRAM 88 Digital Bolt-On: UART/GPIO 89 Digital Bolt-On: Pin Strap Option 90 Digital Bolt-On: Video & Audio Output 91 Digital Bolt-On: PCI, EBI, Flash, Reset & Clone 92 Digital Bolt-On: Clock, EEPROM, JTAG & BBS 93 Digital Bolt-On: Ethernet, USB & SATA 94 Digital Bolt-On: 7401 Analog Supply Filtering 95 Digital Bolt-On: 7401 Digital Decoupling 96 Digital Bolt-On: ADTB-T & DMB-T FE 97 Digital Bolt-On: Cimax 98 Digital Bolt-On: HDMI 99
Published by ER/WS 0966 BU TV Consumer Care Printed in the Netherlands Subject to modification EN 3122 785 18610
2010-Jul-01
EN 2 LC9.2A LA1.
Revision List

1. Revision List

Manual xxxx xxx xxxx.0
First release.

2. Technical Specifications and Connections

Index of this chapter:

2.1 Technical Specifications

2.2 Directions for Use

2.3 Connections
2.4 Chassis Overview
Notes:
Figures can deviate due to the different set executions.
Specifications are indicative (subject to change).
2.1 Technical Specifications
For on-line product support please use the links in 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:
32PFL5609D/30
42PFL5609D/30
42PFL7409D/30
47PFL5609D/30
47PFL7409D/30
P & S 3122 785 18610
P & S 3122 785 18610
Frame 3122 785 18610
P & S 3122 785 18610
Frame 3122 785 18610
2.2 Directions for Use
You can download this information from the following websites:
http://www.philips.com/support http://www.p4c.philips.com
2010-Jul-01

2.3 Connections

18610_001_090603.eps
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Rear connectors
Side connectors
1 2 3 4
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Technical Specifications and Connections
EN 3LC9.2A LA 2.
Note: The following connector colour abbreviations are used
(according to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy= Grey, Rd= Red, Wh= White, Ye= Yellow.

2.3.1 Side Connections

Cinch: Audio - In
Rd - Audio R 0.5 V Wh - Audio L 0.5 V
Cinch: Video CVBS - In
Ye - Video CVBS 1 V
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
Head phone (Output)
Bk - Head phone 32 - 600 Ω / 10 mW ot
/ 10 kΩ jq
RMS
/ 10 kΩ jq
RMS
/ 75 Ω jq
PP
/ 75 Ω j
PP
/ 75 Ω j
PP

Figure 2-1 Connection overview

USB2.0
1-+5V k 2 - Data (-) jk 3 - Data (+) jk 4 - Ground Gnd H
HDMI: Digital Video, Digital Audio - In (see HDMI 1 & 2)
Service Connector (UART)
1 - Ground Gnd H 2 - UART_TX Transmit k 3 - UART_RX Receive j
Figure 2-2 USB (type A)
2010-Jul-01
EN 4 LC9.2A LA2.
1
6
10
11
5
15
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19
1
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Technical Specifications and Connections

2.3.2 Rear Connections

Aerial - In
- - IEC-type (EU) Coax, 75 Ω D
VGA: Video RGB - In
Figure 2-3 VGA Connector
1 - Video Red 0.7 V 2 - Video Green 0.7 V 3 - Video Blue 0.7 V 4-n.c.
/ 75 Ω j
PP
/ 75 Ω j
PP
/ 75 Ω j
PP
5 - Ground Gnd H 6 - Ground Red Gnd H 7 - Ground Green Gnd H 8 - Ground Blue Gnd H 9-+5V 10 - Ground Sync Gnd H
+5 V j
DC
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
Mini Jack: Audio - In
Wh - Audio L 0.5 V Rd - Audio R 0.5 V
/ 10 kΩ jo
RMS
/ 10 kΩ jo
RMS
Cinch: S/PDIF - Out
Bk - Coaxial 0.4 - 0.6V
/ 75 ohm kq
PP
CVI: Cinch: Video YPbPr - In, Audio - In
Gn - Video Y 1 V Bu - Video Pb 0.7 V Rd - Video Pr 0.7 V
/ 75 Ω jq
PP
/ 75 Ω jq
PP
/ 75 Ω jq
PP
Rd - Audio - R 0.5 V Wh - Audio - L 0.5 V
/ 10 kΩ jq
RMS
/ 10 kΩ jq
RMS
Cinch: Video CVBS - Out, Audio - Out
Ye - Video CVBS 1 V Wh - Audio L 0.5 V Rd - Audio R 0.5 V
/ 75 ohm kq
PP
/10 kohm kq
RMS
/ 10 kohm kq
RMS
Cinch: Video CVBS - In, Audio - In
Ye - Video CVBS 1 V Wh - Audio L 0.5 V Rd - Audio R 0.5 V
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
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 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 9. Block Diagrams for PWB/CBA locations.
2010-Jul-01
Precautions, Notes, and Abbreviation List

3. Precautions, Notes, and Abbreviation List

EN 5LC9.2A LA 3.
Index of this chapter:

3.1 Safety Instructions

3.2 Warnings

3.3 Notes

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

3.3.2 Schematic Notes

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

3.3.3 Spare Parts

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

3.3.4 BGA (Ball Grid Array) ICs

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

3.3.1 General

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

3.3.5 Lead-free Soldering

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

3.3.6 Alternative BOM identification

It should be noted that on the European Service website, “Alternative BOM” is referred to as “Design variant”.
2010-Jul-01
EN 6 LC9.2A 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
2010-Jul-01
Precautions, Notes, and Abbreviation List
EN 7LC9.2A 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=
2010-Jul-01
EN 8 LC9.2A 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 × 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 1280 × 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
2010-Jul-01

4. Mechanical Instructions

18610_100_090603.eps
090603
bolt-on module digital TV
Index of this chapter:

4.1 Cable Dressing

4.2 Service Positions
4.3 Assy/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 9LC9.2A LA 4.

Figure 4-1 Cable dressing 32PFL5609D/30

2010-Jul-01
EN 10 LC9.2A LA4.
18610_101_090603.eps
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bolt -on module digital TV
18610_102_090603.eps
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Mechanical Instructions

Figure 4-2 Cable dressing 42PFL5609D/30

2010-Jul-01

Figure 4-3 Cable dressing 42PFL7409D/30

Mechanical Instructions
18610_103_090603.eps
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bolt-on module digital TV
18610_104_090603.eps
090603
EN 11LC9.2A LA 4.

Figure 4-4 Cable dressing 47PFL5609D/30

Figure 4-5 Cable dressing 47PFL7409D/30

2010-Jul-01
EN 12 LC9.2A LA4.
E_06532_018.eps
171106
1
Required for sets
42"
1
Mechanical Instructions

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 4-6 Foam bars

4.3.3 IR & LED Board

1. Unplug the connectors leading to the SSB and IR & LED Board.
2. Lift the board and take it out.
When defective, replace the whole unit.

4.3.4 Key Board Control Panel

1. Unplug the key board connector from the IR & LED board.
2. Release the clamp on the topside using a screwdriver.
3. Lift the unit and take it out of the set.
When defective, replace the whole unit.

4.3.5 Main Supply Panel

1. Unplug all connectors.
2. Remove the fixation screws.
3. Take the board out.
When defective, replace the whole unit.

4.3.6 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. Unplug all connectors.
2. Remove all screws that secure the board.
3. The SSB can now be taken out of the set, together with the side cover.
4. To remove the side cover, push the clamp with a screwdriver in the middle of the cover and pull the cover sidewards from the SSB.
The foam bars (order code 3122 785 90580 for two pieces) can be used for all types and sizes of Flat TVs. See Figure 4-6 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, a stable situation is created to perform measurements and alignments. By placing a mirror under the TV, you can monitor the screen.

4.3 Assy/Panel Removal

The instructions apply to the P & S styling - 5000 series.

4.3.1 Rear Cover

Warning: Disconnect the mains power cord before you remove
the rear cover. Note: it is not necessary to remove the stand while removing the rear cover.
1. Remove all screws of the rear cover.
2. Lift the rear cover from the TV. Make sure that wires and flat coils are not damaged while lifting the rear cover from the set.

4.3.2 Speakers

Each speaker unit is mounted with two screws. A sticker on the the unit indicates if it is the right (“R”) or left (“L”) box, seen from the backside of the set, and a arrow points to the bottom of the set. When defective, replace the whole unit.
for
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4.3.7 LCD Panel

Refer to Figure 4-7 (slightly) different mechanical construction (some have the boards directly mounted on the LCD display, others use brackets), we only describe one model. Disassembly method of other LCD panels is similar to the one described below. This particular photo is taken from a set with the timing controller (TCON) located on the SSB.
for details. As every screen size has a
1. Remove the Main Supply Panel and Small SIgnal Board as earlier described.
2. Unplug the connectors to and from the Speakers, IR & LED Board and Key Board Control Panel.
3. Remove the stand [1].
4. Release the subframe of the stand [2].
5. Remove the brackets [3] that secure the LCD Panel.
6. The LCD panel can now be lifted from the front cabinet.

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 Figure
4-1 to Figure 4-5.
Pay special attention not to damage the EMC foams on the SSB shields. Ensure that EMC foams are mounted correctly.
Figure 4-7 LCD Panel removal
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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 Test Points

5.2 Service Modes

5.3 Service Tools
5.4 Error Codes
5.5 The Blinking LED Procedure
5.6 Fault Finding and Repair Tips
5.7 Software Upgrading
5.1 Test Points
In the chassis schematics and layout overviews, the test points are mentioned. In the schematics, test points are indicated with “Fxxx” or “Ixxx”, in the layout overviews with a “half-moon” sign. As most signals are digital, it will be difficult to measure waveforms with a standard oscilloscope. 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
The Service Mode feature is split into four parts:
Service Default Mode (SDM).
Service Alignment Mode (SAM).
Customer Service Mode (CSM).
Computer Aided Repair Mode (ComPair).
SDM and SAM offer features, which can be used by the Service engineer to repair/align a TV set. Some features are:
A pre-defined situation to ensure measurements can be made under uniform conditions (SDM).
Activates the blinking LED procedure for error identification when no picture is available (SDM).
The possibility to overrule software protections when SDM is entered via the Service pins.
Make alignments (e.g. White Tone), (de)select options, enter options codes, reset the error buffer (SAM).
Display information (“SDM” or “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.
ComPair Mode is used for communication between a computer and a TV on I2C /UART level and can be used by a Service engineer to quickly diagnose the TV set by reading out error codes, read and write in NVMs, communicate with ICs and the uP (PWM, registers, etc.), and by making use of a fault finding database. It will also be possible to up and download the software of the TV set via I2C with help of ComPair. To do this, ComPair has to be connected to the TV set via the ComPair connector, which will be accessible through the rear of the set (without removing the rear cover).
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5.2.1 General

Some items are applicable to all Service Modes or are general. These are listed below.
Life Timer
During the life time cycle of the TV set, a timer is kept (called “Op. Hour”). It counts the normal operation hours (not the Stand-by hours). The actual value of the timer is displayed in SDM and SAM in a decimal value. Every two soft-resets increase the hour by +1. Standby hours are not counted.
Software Identification, Version, and Cluster
The software ID, version, and cluster will be shown in the main menu display of SDM, SAM, and CSM. The screen will show: “AAAABCD X.YY”, where:
AAAA is the chassis name: LC92.
B is the region indication: E= Europe, A= AP/China, U= NAFTA, L= LATAM.
C is the display indication: L= LCD, P= Plasma.
D is the language/feature indication: 1= Standard, H= Full HD.
X is the main version number: this is updated with a major change of specification (incompatible with the previous software version). Numbering will go from 1 - 9 and A - Z. – 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 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.
Display Option Code Selection
When after an SSB or display exchange, the display option code is not set properly, it will result in a TV with “no display”. Therefore, it is required to set this display option code after such a repair. To do so, press the following key sequence on a standard RC transmitter: “062598” directly followed by MENU and “xxx”, where “xxx” is a 3 digit decimal value of the panel type: see column “Display Code” in Table 6-5
, or see sticker on the side/
bottom of the cabinet. When the value is accepted and stored in NVM, the set will switch to Stand-by, to indicate that the process has been completed.
Figure 5-1 Location of Display Option Code sticker
During this algorithm, the NVM-content must be filtered, because several items in the NVM are TV-related and not SSB­related (e.g. Model and Prod. S/N). Therefore, “Model” and “Prod. S/N” data is changed into “See Type Plate”. In case a call centre or consumer reads “See Type Plate” in CSM mode, he needs to look to the side/bottom sticker to identify the set, for further actions.
Service Modes, Error Codes, and Fault Finding
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5.2.2 Service Default Mode (SDM)

Purpose
Set the TV in SDM mode in order to be able to create a pre­defined setting for measurements to be made. In this platform, a simplified SDM is introduced (without protection override and without tuning to a frequency of 475.25 MHz).
Specifications
Set linear video and audio settings to 50%, but volume to 25%. Stored user settings are not affected.
All service-unfriendly modes (if present) are disabled, since they interfere with diagnosing/repairing a set. These service unfriendly modes are: – (Sleep) timer. – Blue mute/Wall paper. – Auto switch “off” (when there is no “ident” signal). – Hotel or hospital mode. – Child lock or parental lock (manual or via V-chip). – Skipping, blanking of “Not favourite”, “Skipped” or
“Locked” presets/channels.
– Automatic storing of Personal Preset or Last Status
settings.
– Automatic user menu time-out (menu switches back/
OFF automatically.
– Auto Volume levelling (AVL).
How to Activate
To activate SDM, use one of the following methods:
Press the following key sequence on the remote control transmitter: “062596” directly followed by the MENU button (do not allow the display to time out between entries while keying the sequence).
Short one of the “Service” jumpers on the TV board during cold start (see Figure 5-2 (remove the short after start-up). Caution: Activating SDM by shorting “Service” jumpers will override the DC speaker protection (error 1), the General I2C error (error 4), and the Trident video processor error (error 5). When doing this, the service-technician must know exactly what he is doing, as it could damage the television set.
). Then press the mains button
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Figure 5-3 SDM menu
Menu explanation:
HHHHH: Are the operating hours (in decimal).
AAAABCD-X.YY: See paragraph Software Identification,
Version, and Cluster for the SW name definition.
ERR: Shows all errors detected since the last time the buffer was erased in format <xxx> <xxx> <xxx> <xxx> <xxx> (five errors possible).
OP: Used to read-out the option bytes. See “Options” in the Alignments section for a detailed description. Ten codes (in two rows) are possible.
How to Navigate
As this mode is read only, there is not much to navigate. To switch to other modes, use one of the following methods:
Command MENU from the user remote will enter the normal user menu (brightness, contrast, colour, etc...) with “SDM” OSD remaining, and pressing MENU key again will return to the last status of SDM again.
To prevent the OSD from interfering with measurements in SDM, command “OSD” or “i+” (“STATUS” or “INFO” for NAFTA and LATAM) from the user remote will toggle the OSD “on/off” with “SDM” OSD remaining always “on”.
Press the following key sequence on the remote control transmitter: “062596” directly followed by the OSD/ STATUS/INFO/i+ button to switch to SAM (do not allow the display to time out between entries while keying the sequence).
Figure 5-2 Service jumper (SSB component side)
On Screen Menu
After activating SDM, the following screen is visible, with SDM in the upper right corner of the screen to indicate that the television is in Service Default Mode.
How to Exit
Switch the set to STANDBY by pressing the mains button on the remote control transmitter or on the television set. If you switch the television set “off” by removing the mains (i.e., unplugging the television), the television set will remain in SDM when mains is re-applied, and the error buffer is not cleared. The error buffer will only be cleared when the “clear” command is used in the SAM menu.
Note:
If the TV is switched “off” by a power interrupt while in SDM, the TV will show up in the last status of SDM menu as soon as the power is supplied again. The error buffer will not be cleared.
In case the set is in Factory mode by accident (with “F” displayed on screen), by pressing and hold “VOL-“ and “CH-” together should leave Factory mode.
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5.2.3 Service Alignment Mode (SAM)

Purpose
To change option settings.
To display / clear the error code buffer.
To perform alignments.
Specifications
Operation hours counter (maximum five digits displayed).
Software version, error codes, and option settings display.
Error buffer clearing.
Option settings.
Software alignments (White Tone).
NVM Editor.
Set screen mode to full screen (all content is visible).
How to Activate
To activate SAM, use one of the following methods:
Press the following key sequence on the remote control transmitter: “062596” directly followed by the OSD/ STATUS/INFO/i+ button (it depends on region which button is present on the RC). Do not allow the display to time out between entries while keying the sequence.
Or via ComPair.
After entering SAM, the following screen is visible, with SAM in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.
How to Navigate
In the SAM menu, select menu items with the UP/DOWN keys on the remote control transmitter. The selected item will be indicated. When not all menu items fit on the screen, use the UP/DOWN keys to display the next / previous menu items.
With the LEFT/RIGHT keys, it is possible to: – Activate the selected menu item. – Change the value of the selected menu item. – Activate the selected sub menu.
When you press the MENU button twice while in top level SAM, the set will switch to the normal user menu (with the SAM mode still active in the background). To return to the SAM menu press the MENU button.
The “OSD/STATUS/INFO/i+” key from the user remote will toggle the OSD “on/off” with “SAM” OSD remaining always “on”.
Press the following key sequence on the remote control transmitter: “062596” directly followed by the MENU button to switch to SDM (do not allow the display to time out between entries while keying the sequence).
How to Store SAM Settings
To store the settings changed in SAM mode (except the OPTIONS and RGB ALIGN settings), leave the top level SAM menu by using the POWER button on the remote control transmitter or the television set. The mentioned exceptions must be stored separately via the STORE button.
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Figure 5-4 SAM menu
Menu explanation:
1. System Information:
Op. Hour. This represents the life timer. The timer counts normal operation hours, but does not count Stand-by hours.
MAIN SW ID. See paragraph Software Identification, Version, and Cluster for the SW name definition.
ERROR CODES. Shows all errors detected since the last time the buffer was erased. Five errors possible.
OP1 / OP2. Used to read-out the option bytes. See paragraph 6.4 Option Settings in the Alignments section for a detailed description. Ten codes are possible.
2. Clear. Erases the contents of the error buffer. Select the CLEAR menu item and press the MENU RIGHT key. The content of the error buffer is cleared.
3. Options. To set the option bits. See paragraph 6.4 Option Settings
in the “Alignments” chapter for a detailed
description.
4. RGB Align. To align the White Tone. See White Tone Alignment:
for a detailed description.
5. NVM Editor. To change the NVM data in the television set. See also paragraph 5.6 Fault Finding and Repair Tips.
6. NVM Copy. Gives the possibility to copy/load the NVM file to/from an USB stick. NVM data copied to a USB memory device is named “NVM_COPY.BIN”. When copied back to a TV, the file first must have the same name.
How to Exit
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.
In case the set is in Factory mode by accident (with “F” displayed on screen), by pressing and hold “VOL-“ and “CH-” together should leave Factory mode.
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5.2.4 Customer Service Mode (CSM)

Purpose
The Customer Service Mode shows error codes and information on the TV’s operation settings. A call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set. This helps them to diagnose problems and failures in the TV before making a service call. The CSM is a read-only mode; therefore, modifications are not possible in this mode.
Specifications
Ignore “Service unfriendly modes”.
Line number for every line (to make CSM language independent).
Set the screen mode to full screen (all contents on screen is visible).
After leaving the Customer Service Mode, the original settings are restored.
Possibility to use “CH+” or “CH-” for channel surfing, or enter the specific channel number on the RC.
How to Activate
To activate CSM, press the following key sequence on a standard remote control transmitter: “123654” (do not allow the display to time out between entries while keying the sequence).
Upon entering the Customer Service Mode, the following screen will appear:
Menu Explanation
1. Model Number. Type number, e.g. 42PFL9509/93. (*)
2. Production Serial Number. Product serial no., e.g. SV1A0908123456 (*). SV= Production centre, 1= BOM code, A= Service version change code, 09= Production year, 08= Production week, 123456= Serial number.
3. Software Version. Main software cluster and version is displayed.
4. Option Code 1. Option code information (group 1).
5. Option Code 2. Option code information (group 2).
6. PSU. Indication of the PSU factory ID (= 12nc).
7. SSB. Indication of the SSB factory ID (= 12nc). (*)
8. Display. Indication of the display ID (=12 nc). (*)
9. NVM Version. The NVM software version no.
10. PQ Version. PQ (picture quality) data version. This is a subset of the main SW.
11. Key (HDCP). Indicates if the HDMI keys (or HDCP keys) are valid or not.
12. Audio System. Gives information about the audio system of the selected transmitter.
13. Blank.
14. Video Format. Gives information about the video format of the selected transmitter (480p30/720p60/1080i50/1080i60, etc...). Is applicable to both HDMI and CVI sources.
15. Standby uP SW ID. Shows the Standby Processor software version.
16. Bootloader ID. Shows the Bootloader software ID.
17. Panel code. Gives the number of the panel as stored in NVM.
18. AP uP SW ID.Shows the AL uP software version.
(*) If an NVM IC is replaced or initialized, these items must be re-written to the NVM. ComPair will foresee in a possibility to do this.
Figure 5-5 CSM menu -1- (example)
Figure 5-6 CSM menu -2- (example)
How to Exit
To exit CSM, use one of the following methods:
Press the MENU button twice on the remote control transmitter.
Press the POWER button on the remote control transmitter.
Press the POWER button on the television set.
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5.3 Service Tools

5.3.1 ComPair

Introduction
ComPair (Computer Aided Repair) is a Service tool for Philips Consumer Lifestyle products. and offers the following:
1. ComPair helps you 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. You do not have to know anything about I2C or UART commands yourself, 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 (new) 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).
How to Connect
This is described in the ComPair chassis fault finding database.
TO TV
TO
UART SERVICE
CONNECTOR
I2C SERVICE
CONNECTOR
TO
TO
UART SERVICE
CONNECTOR

5.4 Error Codes

5.4.1 Introduction

Error codes are required to indicate failures in the TV set. In principle a unique error code is available for every:
Activated (SW) protection.
•Failing I
General I
The last five errors, stored in the NVM, are shown in the Service menu’s. This is called the error buffer. The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right. An error will be added to the buffer if this error differs from any error in the buffer. The last found error is displayed on the left. An error with a designated error code may never lead to a deadlock situation. This means that it must always be diagnosable (e.g. error buffer via OSD or blinking LED procedure, ComPair to read from the NVM). In case a failure identified by an error code automatically results in other error codes (cause and effect), only the error code of the MAIN failure is displayed.
Example: In case of a failure of the I2C bus (CAUSE), the error code for a “General I2C failure” and “Protection errors” is displayed. The error codes for the single devices (EFFECT) is not displayed. All error codes are stored in the same error buffer (TV’s NVM) except when the NVM itself is defective.
2
C device.
2
C error.
ComPair II
RC in
Optional
Switch
Power ModeLink/
Activity
HDMI
2
C only
I
RC out
Multi
function
2
C
I
PC
ComPair II Developed by Philips Brugge
Optional power
RS232 /UART
5V DC
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Figure 5-7 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 blown!
How to Order
ComPair II order codes:
ComPair II interface: 3122 785 91020.
ComPair UART interface cable: 3138 188 75051.
Program software can be downloaded from the Philips Service website.
Note: If you encounter any problems, contact your local support desk.

5.3.2 LVDS Tool

Support of the LVDS Tool has been discontinued.
091118

5.4.2 How to Read the Error Buffer

You can read the error buffer in 3 ways:
On screen via the SAM/SDM/CSM (if you have a picture). Example: – ERROR: 0 0 0 0 0 : No errors detected – ERROR: 6 0 0 0 0 : Error code 6 is the last and only
detected error
ERROR: 9 6 0 0 0 : Error code 6 was detected first and
error code 9 is the last detected (newest) error
Via the blinking LED procedure (when you have no picture). See paragraph 5.5 The Blinking LED Procedure.
•Via ComPair.

5.4.3 Error codes

The layer 1 error codes are pointing to the defective board. They are triggered by LED blinking when CSM is activated. In the LC09M platform, only two boards are present: the SSB and the PSU, meaning only two layer 1 errors are defined (or three in case an additional bolt-on module is added):
2: SSB
4: PSU
•6: Bolt-on.
The following layer 2 errors have been assigned:
00: no error
11: DC protection of speakers, detected by MT539x
12: +12V protection error (or 12V failure), detected by standby processor during start-up
13: POK line error
14: General I on the same bus had no response
2
15: I
2
16: I tuner
2
17: I
2
C bus error when all the devices I2C devices
C error while communicating with the main EEPROM C error while communicating with the PLL/hybrid
C error while communicating with the HDMI Mux IC
ADV3002
18: IF demodulator TDA9886
19: Reserved
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21: Digital Bolt-on module communication error (where applicable).

5.4.4 How to Clear the Error Buffer

The error code buffer is cleared in the following cases:
By using the CLEAR command in the SAM menu:
If the contents of the error buffer have not changed for 50 hours, the error buffer resets automatically.
Note: If you exit SAM by disconnecting the mains from the television set, the error buffer is not reset.

5.5 The Blinking LED Procedure

5.5.1 Introduction

The software is capable of identifying different kinds of errors. Because it is possible that more than one error can occur over time, an error buffer is available, which is capable of storing the last five errors that occurred. This is useful if the OSD is not working properly.
Errors can also be displayed by the blinking LED procedure. The method is to repeatedly let the front LED pulse with as many pulses as the error code number, followed by a period of
1.5 seconds in which the LED is “off”. Then this sequence is
repeated.
Example (1): error code 4 will result in four times the sequence LED “on” for 0.25 seconds / LED “off” for 0.25 seconds. After this sequence, the LED will be “off” for 1.5 seconds. Any RC5 command terminates the sequence. Error code LED blinking is in red colour.
Example (2): the content of the error buffer is “129600” After entering SDM, the following occurs:
1 long blink of 5 seconds to start the sequence,
12 short blinks followed by a pause of 1.5 seconds,
9 short blinks followed by a pause of 1.5 seconds,
6 short blinks followed by a pause of 1.5 seconds,
1 long blink of 1.5 seconds to finish the sequence,
The sequence starts again with 12 short blinks.

5.5.2 Displaying the Entire Error Buffer

Additionally, the entire error buffer is displayed when Service Mode “SDM” is entered. In case the TV set is in protection or Stand-by: The blinking LED procedure sequence (as in SDM­mode in normal operation) must be triggered by the following RC sequence: “MUTE” “062500” “OK”. In order to avoid confusion with RC5 signal reception blinking, this blinking procedure is terminated when a RC5 command is received.

5.6 Fault Finding and Repair Tips

Notes:
It is assumed that the components are mounted correctly with correct values and no bad solder joints.
Before any fault finding actions, check if the correct options are set.

5.6.1 Software Protections

Most of the protections and errors use either the stand-by or the micro processor 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.
Protections related to breakdown of the safety check mechanism. E.g. since the protection detections are done by means of software, failing of the software will have to initiate a protection mode since safety cannot be guaranteed any more.
Remark on the Supply Errors
The detection of a supply dip or supply loss during the normal playing of the set does not lead to a protection, but to a cold reboot of the set. If the supply is still missing after the reboot, the TV will go to protection.
Protections during Start-up
During TV start-up, some voltages and IC observers are actively monitored to be able to optimise the start-up speed, and to assure good operation of all components. If these monitors do not respond in a defined way, this indicates a malfunction of the system and leads to a protection.

5.6.2 Hardware Protections

The only real hardware protection in this chassis is (in case of an audio problem) the audio protection circuit that will trigger the uP to switch “off” the TV.
Repair Tip
It is also possible that you have an audio DC protection because of an interruption in one or both speakers (the DC voltage that is still on the circuit cannot disappear through the speakers). Caution: (dis)connecting the speaker wires during the ON state of the TV at high volume can damage the audio amplifier.

5.6.3 NVM Editor

In some cases, it can be convenient if one directly can change the NVM contents. This can be done with the “NVM Editor” in SAM mode. With this option, single bytes can be changed.
Caution:
Do not change these, without understanding the function of each setting, because incorrect NVM settings may seriously hamper the correct functioning of the TV set!
Always write down the existing NVM settings, before changing the settings. This will enable you to return to the original settings, if the new settings turn out to be incorrect.
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Table 5-1 NVM editor overview
Hex Dec Description
Address 0x000A 10 Existing value
Value 0x0000 0 New value
Store Store?

5.6.4 Load Default NVM Values

It is possible to download default values automatically into the NVM in case a blank NVM is placed or when the NVM first 20 address contents are “FF”. After the default values are downloaded, it is possible to start-up and to start aligning the TV set. To initiate a forced default download the following action has to be performed:
1. Switch “off” the TV set with the mains cord disconnected from the wall outlet (it does not matter if this is from “Stand­by” or “Off” situation).
2. Short-circuit the SDM jumpers on the SSB (keep short circuited).
3. Press “P+” or “CH+” on the local keyboard (and keep it pressed).
4. Reconnect the mains supply to the wall outlet.
5. Release the “P+” or “CH+” when the set is started up and has entered SDM.
When the downloading has completed successfully, the set should be into Stand-by, i.e. red LED on.
After replacing an EEPROM (or with a defective/no EEPROM), default settings should be used to enable the set to start-up and allow the Service Default Mode and Service Alignment Mode to be accessed.

5.6.5 Display option code

Caution: In case you have replaced the SSB, always check the
display option code in SAM, even if you have picture. With a wrong display option code it is possible that you have picture, but that in certain conditions you have unwanted side-effects.

5.6.6 Trouble Shooting Tuner section

When there is no picture in analog RF mode:
1. Check whether picture is present in AV mode. If not, tuner section is okay. Check video processing section.
2. Check if option settings are correct. Tuner profile in OP10: OPA7..OPA5=000 (China region), 010 (AP region).
3. Check if 5 V supply is available at test points F256, F228, F229 and F219, and if 33 V is available at test point F257.
4. Check if the I
2
C lines are working correctly (3.3 V).
5. Manually store a known channel and check if there is IF output at tuner pin 11. If not, tuner is faulty.
6. Feed in 105 dBuV at tuner pin 11 and check whether there is CVBS output from IF demodulator IC. If not, IF demodulator might be faulty. Check components in this area.
Alternative method:
It is also possible to upload the default values to the NVM with ComPair in case the SW is changed, the NVM is replaced with a new (empty) one, or when the NVM content is corrupted.

5.6.7 Trouble Shooting Sound section

2010-Jul-01
Figure 5-8 Fault finding tree sound section
Service Modes, Error Codes, and Fault Finding
No Video and Audio
for any HDMI input
(permanently)
Check TMDS signal at pin 1,
3, 4, 6, 7, 9, 10, 12 of
connector 1 (if HDMI 1)
Yes
No
Check TMDS signal at pin 37,38,41,42,44,45,47,48 of
ADV3002 (if HDMI 1)
Malfuntion of HDMI
connector, ensure
solderbility of Connector
Check TMDS signal at pin 25,26,28,29,31,32,34,35 of
ADV3002
Yes
No
Malfuntion of PCB trace,
ensure no broken trace of
these signals between
connector and ADV3002
Yes
No
The video and audio path is
intact, no video & audio is
cause by MTK 5392
malfunction
Malfuntion of ADV3002
No Video and Audio for any
HDMI input
(Intermittent and differ
within various DVD player)
Go to CSM mode using RC
key "123654",
check item 11: Key(HDCP)
Valid
Invalid
check item 19:
EDID Version / Check sum
As per latest?
Reload HDCP key
Check the following possible hardware failure:
1) Supply of EEPROM IC (pin 8 of 7B02). Should be +5V.
2) Connectivity of I2C between EEPROM (7B02) and ADV3002 (7B05). Between pin 5, 6 of 7B02 and pin 61 , 62 of 7B05. Should be +3.8V.
3) Connectivity of DDC line between HDMI connector and ADV3002. (ex: pin 15, 16 of connector HDMI 1 to pin 69 , 70 of ADV3002.)
4) Connectivity of DDC line between ADV3002 and MTK5392. (pin 67, 68 of ADV3002 to test point F836 & F837)
No
Update EDID
Yes
18490_211_090409.eps
090409

5.6.8 Trouble Shooting HDMI section

EN 21LC9.2A LA 5.
Figure 5-9 Fault finding tree HDMI section
2010-Jul-01
EN 22 LC9.2A LA5.
Service Modes, Error Codes, and Fault Finding

5.6.9 Start-up/Shut-down Flowcharts

On the next pages you will find start-up and shut-down flowcharts, which might be helpful during fault finding.
POWER STATES
In this chassis, there are six possible power states as follows:
Power OFF
Power ON
STANDBY
SEMI-STANDBY
Special Panel Mode
PROTECTION
Figure 5-10 Power States
POWER OFF
In “Power OFF” mode, the system is completely switched “off” from AC mains. When AC power is applied, the system checks for last status. Depending on the last standby status stored in the system EEPROM, this mode can then transit to “ON” or “STANDBY” mode.
ON
This is the normal operating mode, indicated by the “on” LED. All the power supply lines are available and depending on the sub-mode, all the circuits in the system may be active. From this mode it shall be possible to transit to “STANDBY” and “PROTECTION” mode, or to “Power OFF” mode if AC mains are switched “off”. The sub-modes are:
Active Mode (Normal Consumer Mode)
Service Modes
Panel Modes
Factory Modes
18490_204_090409.eps
090409
SPECIAL PANEL MODE
The Special Panel Mode is only used during manufacturing process to program the system EEPROM. In this mode, the SDA0 and SCL0 ports of MT5392 are set to high impedance after SDM and PANEL pins are both detected as “low” during start-up. This mode can be exited using a power recycle.
PROTECTION
This state is entered when an error has been detected at start­up or in the “ACTIVE” mode. All switched power supply lines are turned “off” with only +3V3stby remaining “on”; similar to “STANDBY” mode. This state is indicated by the blinking red front LED with the blinking sequence denoting the type of error detected. When the system enters the protection mode due to a critical error, it should be turned “off” and the failure cause needs to be resolved. The system will function normally again after performing a power recycling once all protection causing failures have been resolved.
START-UP SEQUENCE
There are two cases of start-up sequences, namely:
AC On and
Standby Wake-up.
See also Figure 5-11
.
AC ON
In the case of start-up from AC mains, all PSU voltages start to turn “on” as the hardware default of the active “low” STANDBY (controlled by Standby Controller STANDBY signal) signal to the PSU is pulled “low” with respect to ground. The MT5392 starts running boot loader once the hardware reset circuit is released. The system will then check the last standby status from the system EEPROM to determine whether to complete the system start-up (load image, turn on the audio, display etc) or proceed to standby and wait for wake­up command from user. The Standby Controller then proceeds to verify the power status of the +12V and sends the system to protection in case of any failures. Special Panel, SDM, and PANEL modes are detected as well.
STANDBY WAKEUP
When the system receives a command to wake-up from standby, the Standby Controller sets the STANDBY signal “low” to turn “on” the switched power, and similarly detects for the presence of +12V. The MT5392 waits for +3V3_SW to be available before loading its image. The significance of this voltage detection is due to the flash is also being powered by the same mentioned voltage. The following figure shows the start-up flowchart for both “AC On” and “Standby Wake-up”:
STANDBY
The total power consumption of the system in this mode shall be equal or less than 150 mW. This state is indicated by white LED when AC mains is switched “on”. Only the standby controller is operational in this state, where only +3V3stby power supply is available. From this mode it shall be possible to transit to the “ACTIVE” or “Power OFF” mode if AC mains are switched “off”.
SEMI-STANDBY
The semi-standby state is required to perform the following tasks:
AmbiLight wakeup control
PBS SemiStandby.
2010-Jul-01
Service Modes, Error Codes, and Fault Finding
EN 23LC9.2A LA 5.
Blinking LED No
T8032
T8032 reset state
T8032 booting
T8032 main loop
Yes
Start up OK
Yes
Check
PowerDown
Control PDWNC
module to
wakeup ARM11
Wakeup event
Receive ARM info
(Error code etc)
T8032 main loop in standby
mode
START
HW Default PSU is ON, and
MT5392 POR
MT5392 POR and config
DRAM decompress
bootloader into DRAM
(preLoader)
MT5392 Bootloader
decompressed and running
from DRAM
5392 checks
POWER_DOWN =
HIGH ?
All IIC Port set to High
Impedance
END
Error #, failed into Protection mode, Record error in NVM.
Communicate
Failed Count <= 3
Communicate
Failed Count > 3
NVM status to
check Upgrade bit
Yes
USB Upgrade
NVM Error
[ Protection ]
Upgrade
Failed
Wakeup
Events
(RC/LKB/CEC/Ambilight)
Watchdog timeout
To Reboot
No
No
Yes
If not watchdog reboot,
Enable 20 seconds watchdog
Yes
Check T8032 Status
T8032 in reset State?
(Cold Boot?)
Download T8032 Code
And kick uP to start to run.
Check T8032/ARM
communication ready?
1. Version cmd ok.
NVM
2. Setup CEC parameters.
Error
[ Protecti
on ]
T8032/ARM
No
Communicate ok?
Enable T8032 receive IR key
Any of Upgrade
bits at NVM is on?
Yes
Check Wakeup Reason from PDWNC module (IR/Keypad
HW and CEC) and confirm
from T8032
Cold Start?
Upgrade success
Check Last Status and Boot
Ctrl Bits from NVM
Enter Standby?
Send error code info to
T8032 & CEC on/off status
Setup Wakeup Scenarios on
PDWNC module of 5392
Reboot
1. If Boot Ctrl Bits to set always enter standby, then go to standby directly.
2. If Boot Ctrl Bits to set always boot
directly, then continue booting.
3. If Boot Ctrl Bits to follow Last Status, then check the Last status go decide to
enter standby or continue booting.
Wait 100ms
DTV_IRQ = Low
Wait 100ms
DTV_IRQ = High
Special Panel mode
Detection
SDM
& PANEL =
LOW?
No
Yes
Yes
No
Yes
Yes
Standby
(HW)
Timeout
= 6 Sec ?
No
No
No
yes
Turn on LED1
Is it Ambilight wakeup?
Retrieve/Display Startup
Panel turn on Sequence
PWM_DIMMING keep at 100%
BACKLIGHT_BOOST at
nominal
Turn on LVDS Power
LCD_PWR_ON = LOW
Retrieve Panel ID from NVM
Retrieve Panel Info from Flash
Wait for Panel_On_Time_1
based on Panel ID in ms (from
Panel Info on Flash)
Switch on LVDS Signal
Wait for Panel_On_Time_2
based on Panel ID in ms (from
Panel Info on Flash)
No
BACKLIGHT_ON_OFF = HIGH
Check Boot Bank Flag in
EEPROM
Calculate Boot Bank addr ess
MT5392 Decompress Image
from Flash into DRAM
Successful?
Set Program Counter to
DRAM Image to boot into
TV Image
SDM and PANEL Mode Detection
1. Check SDM Port and Set SDM Mode Flag If SDM Pin = LOW and System EEPROM First 20 bytes = 0xFF or CH+ on LKB pressed, Load Software Default System EEPROM Data (only when cold start)
2. Check Panel Port If Panel Pin = LoW, Set Panel Mode Flag
Enable POWER_DOWN INT
Enable DC_PROT INT
MT5392 begins initializing the
System
12V Error
[ Protection ]
No
Logo
data
Yes
2.568 second
Copy CEC data from T8032 to
MT5392 CEC driver buffer
Switch CEC h/w control from
Initialize Middleware Layer
Initialize Application Layer
Yes
Drop All RC key received before
Switch RC/OPCTRL control from T8032 to MT5392 and
Panel Initialization
BACKLIGHT_ON_OFF = HIGH
Blank Picture and Switch to Last
Picture Mode Setup & Detecti on
UnBlank Picture and UnMute
Start PWM_DIMMING and
Note: Startup time from image decompression long enough to
LAMP ON for proper panel
Initialize NVM
Initialize Tuner
Initialize CEC driver
Check T8032 CEC buffer
T8032 with
CEC data
Yes
T8032 to MT5392
Initialize HDMI Switch
Initialize OSD
3.774 second
Initialize Philips
drivers/Application
this block
Enable RC Key
Is it Ambilight wakeup?
No
Switch to Video Path
Source
Is it Ambilight
wakeup ?
No
Audio MUTEn = HIGH
SW_MUTE = HIGH
Set Last Status = ON
BACKLIGHT_BOOST
satisfy 1sec high time after
startup
NVM Error
[ Protection ]
Tuner
No
HDMI Switch
Turn off Philips
Yes
Panel Initialization
Yes
logo
Semi-Standby
Received wakeup event
Ambilight off
Power on
Standby
(HW)
Audio MUTEn = LOW
SW_MUTE = LOW
AP: Background Manager
3.776 second
Notify T8032 that
MT5392 start up is OK
Enable 5392 Self-Watchdog thread
Thread action:
1. If watchdog reboot, delay 500 seconds to work.
2. Enable Self-watc hdog and initial 15 seconds counter
3. Refresh watchdog counter / 0.5 s ec
4. Alive check T8032 / 15 seconds
AP: Reload UI param eter into
program
AP: TV Navigator
Video Ready
ON Mode
Standby
(HW)
Figure 5-11 Start-up flowchart
18490_205_090409.eps
090409
2010-Jul-01
EN 24 LC9.2A LA5.
RISC START
Disable AP RC/LKB key
Stop Backlight Dimming
PWM_DIMMING = 100%
Turn Off Backlight
BACKLIGHT_ON_OFF = LOW
Switch off LVDS Signal
Wait for Panel_Off_Time_3
based on Panel ID in ms (from
Panel Flash)
Turn Off LVDS Power,
LCD_PWR_ON = HIGH
PWM_Dimming = 0%
Disable DC_PROT &
POWER_DOWN INT
Pass Error Buffer and CEC Info
to T8032
Switch IR/GPIO control from
RISC to T8032
Mute Audio, MUTEn = HIGH
Notify T8032 to go to Standby
END
(STANDBY)
Wait 3000ms to block next
startup to ensure PSU properly
dischaged
T8032 blinks LED2 according to
Error Buffer
STANDBY due
to Protection?
No
Yes
Receive Standby Command
T8032 START
Turn off LED1
Set Last Status = STANDBY
No
Wait for Panel_Off_Time_2
based on Panel ID in ms (from
Panel Flash)
PBS Semistandby Yes
Turn off LED
Switch off backlight
SemiStandby
18490_206_090409.eps
090409
Service Modes, Error Codes, and Fault Finding
STANDBY SEQUENCE
The following flowchart depicts the Standby (plus Semi­Standby condition) sequence:
2010-Jul-01
Figure 5-12 Standby flowchart
Service Modes, Error Codes, and Fault Finding
START
Note: To Avoid False Triggering
Log Error Code
Mute Audio Output
Go to STANDBY
Check
DC_PROT = LOW
for 3 sec?
Ye s
No
END
DC Protection
[Protection]
H_17740_037.eps
240108
POWERDOWN SEQUENCE
The following figure shows the power-down sequence flowchart:
START
EN 25LC9.2A LA 5.
POWER_DOWN INT
based on falling
edge trigger
Wait for
impending
Power Off
MT5392 Detects
POWER_DOWN INT
Reconfirm
POWER_DOWN
= LOW?
Ye s
Mute Audio Output
Write Protect Flash and
System EEPROM
System Idle
END
Note: To
No
Avoid False Triggering
18490_200_090408.eps
090408
Figure 5-13 Power-down flowchart
The power-down condition is detected by the MT5392 POWER_DOWN signal which is an interrupt pin. A “low” level on this line signifies that power-down is detected. The two major activities that occur over this operation is the muting of audio output and write protecting the system flash and EEPROM.
DC PROTECTION
The following figure shows the DC_PROT interrupt flowchart:
Figure 5-14 DC Protection flowchart

5.6.10 SSB replacement

Follow the instructions in the flowchart in case a SSB has to be swapped.
2010-Jul-01
EN 26 LC9.2A LA5.
START
Go to SAM mode and save the TV settings
via “NVM Copy to USB”.
Set is still
operating?
- Replace SSB board by a Service SSB.
- Make the SS B fit mechanically to the set.
Go to SAM mode, and reload settings
via “NVM Copy from USB”.
Saved settings on USB stick?
Progra m “Display Option” code via 062598 MENU, followed by 3 digits code (this code
can be found on the side sticker of the set or
service manual).
Check and perform alignments in SAM
accordin g to the Service Manual.
E.g. option codes, colour temperature...
Connect PC via ComPair interface to Service
connector at side-AV.
END
Yes
After entering “Display Option” code, set is
going to Standby (= validation of code).
Restart the set.
No
- Verify “Option Codes” a ccording to back sticker of set or service manual.
- Default settings for W hite drive see Table 6-1
No
Set is starting up & display is OK.
If not already done;
Check latest software on S ervice website.
Update all relevant software via USB.
Set is starting up normally but no
display.
Final ch eck of all menu s in CSM.
Special a ttention to “Mo del no. serial no.,
panel code & HDCP keys status”.
Program “Model no.”, “Serial no.”, “IPB/PSU
12NC” and “Display 12NC”.
Launch ComPair with correct FF database
Top right corner disp layed “F” or “cF”
Press 5 s. the “Vol -” & “CH -“ button on the local keyboard until the OSD “F” or “cF” dissappeared.
Unplug the mainscord to verify the correct
disablin g of the factory-mode.
Set is starting up in “Factory” mode.
Start-up set.
Set behaviour?
18490_207_090409.eps
090409
Service Modes, Error Codes, and Fault Finding
2010-Jul-01
Figure 5-15 SSB replacement flowchart
Service Modes, Error Codes, and Fault Finding

5.7 Software Upgrading

5.7.1 Introduction

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, without the need of an E-JTAG debugger. A description on how to upgrade the main software can be found in the DFU or on the Philips website.

5.7.2 Main Software Upgrade

Automatic Software Upgrade
In “normal” conditions, so when there is no major problem with the TV, the main software and the default software upgrade application can be upgraded with the “autorun.upg” (FUS part in the one-zip file). This can also be done by the consumers themselves, but they will have to get their software from the commercial Philips website or via the Software Update Assistant in the user menu (see DFU). The “autorun.upg” file must be placed in the root of your USB stick.
How to upgrade:
1. Copy “autorun.upg” to the root of your USB stick.
2. Insert USB stick in the side I/O while the set is in “On” mode. The set will prompt for software upgrade acknowledge, after which the upgrading will start automatically. As soon as the programming is finished, you have to give a “restart” command, after which the set will restart. In the “Setup” menu you can check if the latest software is running.
EN 27LC9.2A LA 5.

5.7.3 Content and Usage of the One-Zip Software File

Below you find a content explanation of the One-Zip file, and instructions on how and when to use it.
Ambi_clustername_version.zip. Not to be used by Service technicians.
Panel_clustername_version.zip. Not to be used by Service technicians.
EDID_clustername_version.zip. Contains the EDID content of the different EDID NVMs. See ComPair for further instructions.
FUS_clustername_version.zip. Contains the “autorun.upg” which is needed to upgrade the TV main software and the software download application.
NVM_clustername_version.zip. Default NVM content. Must be programmed via ComPair.

5.7.4 How to Copy NVM Data to/from USB

Write NVM data to USB
1. Insert the USB stick into the USB slot while in SAM mode.
2. Execute the command "NVM Copy" > "NVM Copy to USB", to copy the NVM data to the USB stick. The NVM filename on the USB stick will be named "NVM_COPY.BIN" (this takes a couple of seconds).
Write NVM data to TV
1. First, ensure (via a PC) that the filename on the USB stick has the correct format: "NVM_COPY.BIN".
2. Insert the USB stick into the USB slot while in SAM mode.
3. Execute the command "NVM Copy" > "NVM Copy from USB" to copy the USB data to NVM (this takes about a minute to complete).
Important: The file must be located in the root directory of the USB stick.
2010-Jul-01
EN 28 LC9.2A LA6.

6. Alignments

Alignments
Index of this chapter:

6.1 General Alignment Conditions

6.2 Hardware Alignments

6.3 Software Alignments

6.4 Option Settings
Note: Figures below can deviate slightly from the actual situation, due to the different set executions.
General: The Service Default Mode (SDM) and Service Alignment Mode (SAM) are described in chapter 5. Menu navigation is done with the CURSOR UP, DOWN, LEFT or RIGHT keys of the remote control transmitter.
6.1 General Alignment Conditions
Perform all electrical adjustments under the following conditions:
Power supply voltage (depends on region): – AP-NTSC: 120 V – AP-PAL-multi: 120 - 230 V – EU: 230 V
AC
– LATAM-NTSC: 120 - 230 V – US: 120 V
AC
or 230 VAC / 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
/ 50 Hz (± 10%).
AC
/ 60 Hz (± 10%).
Connect the set to the mains via an isolation transformer with low internal resistance.
Allow the set to warm up for approximately 15 minutes.
Measure voltages and waveforms in relation to correct ground (e.g. measure audio signals in relation to AUDIO_GND). Caution: It is not allowed to use heatsinks as ground.
Test probe: Ri > 10 Mohm, Ci < 20 pF.
Use an isolated trimmer/screwdriver to perform alignments.
6.2 Hardware Alignments
There are no hardware alignments foreseen for this chassis, but below find an overview of the most important DC voltages on the SSB. These can be used for checking proper functioning of the DC/DC converters.
Description Test Point Specifications (V) Diagram
Min. Typ. Max.
+12VS F124 11.40 12.00 12.60 B01_DC-DC
+3V3_STBY F101 3.20 3.30 3.40 B01_DC-DC
+3V3_SW F133 3.14 3.3 3.46 B01_DC-DC
+1V2_SW F131 1.18 1.25 1.31 B01_DC-DC
+5V_SW F132 4.94 5.2 5.46 B01_DC-DC
+1V8_SW F125 1.71 1.80 1.89 B01_DC-DC
+1V0_SW F134 0.99 1.05 1.10 B01_DC-DC
+8V_SW F122 7.6 8.0 8.4 B01_DC-DC
+5VS F228 4.75 5 5.25 B02_Tuner_IF
+VDISP F934 11.40 12.00 12.60 B04D_LVDS
+VTUN F123 303336B01_DC-DC
+5V_IF F229 4.75 5 5.25 B02_Tuner_IF
+5VTUN F219 4.75 5 5.25 B02_Tuner_IF
6.3 Software Alignments
With the software alignments of the Service Alignment Mode (SAM) the Tuner and RGB settings can be aligned. To store the data: Use the RC button “Menu” to switch to the main menu and next, switch to “Stand-by” mode.

6.3.1 Tuner Adjustment (RF AGC Take Over Point)

Purpose: To keep the tuner output signal constant as the input
signal amplitude varies.
The LC9.2A LA chassis comes with the UV1856L analogue tuner with splitter. No alignment is necessary, as the AGC alignment is done automatically (standard value: “15”). However in case of problems use the following method (use multimeter and RF generator):
Apply a vision IF carrier of 38.9 MHz (105 dBuV = 178 mVrms) to injection point A258 (input via 50 ohm coaxial cable terminated with an RC network of series 10nF with 120 ohm to ground).
Measure voltage on pin 1 of the tuner (test point F250).
Adjust AGC (via SAM menu: TUNER -> AGC), until voltage on pin 1 is 3.3 +0.5/-1.0 V.
Store settings and exit SAM.

6.3.2 RGB Alignment

Before alignment, choose “Setup” -> “Picture” and set:
“Brightness” to “50”.
“Colour” to “50”.
“Contrast” to “100”.
White Tone Alignment:
Activate SAM.
Select “RGB Align“ and choose a colour temperature.
Use a 100% white screen as input signal and set the following values: – All “White point” values initial to “256”. – All “BlackL Offset” values to “0”.
In case you have a colour analyser:
Measure with a calibrated (phosphor- independent) colour analyser (e.g. Minolta CA-210) in the centre of the screen. Consequently, the measurement needs to be done in a dark environment.
Adjust the correct x,y coordinates (while holding one of the White point registers R, G or B on “256”) by means of decreasing the value of one or two other white points to the correct x,y coordinates (see Table 6-1 White D alignment values). Tolerance: dx: ± 0.004, dy: ± 0.004.
Repeat this step for the other colour Temperatures that need to be aligned.
When finished return to the SAM root menu and press STANDBY on the RC to store the aligned values to the NVM.
Table 6-1 White D alignment values
Value Cool (11000 K) Normal (9000 K) Warm (6500 K)
x 0.278 0.289 0.314
y 0.278 0.291 0.319
If you do not have a colour analyser, you can use the default values. This is the next best solution. The default values are average values coming from production (statistics).
Set the RED, GREEN and BLUE default values per temperature according to the values in the “Tint settings” table.
When finished return to the SAM root menu and press STANDBY on the RC to store the aligned values to the NVM.
Table 6-2 Tint settings 32"
Colour Temp. R G B
Cool 254 211 252
Normal 255 206 218
Warm 255 193 148
2010-Jul-01
Table 6-3 Tint settings 42"
Colour Temp. R G B
Cool 234 211 255
Normal 255 225 240
Warm 255 209 166
Table 6-4 Tint settings 47"
Colour Temp. R G B
Cool tbf tbf tbf
Normal tbf tbf tbf
Warm tbf tbf tbf

6.4 Option Settings

6.4.1 Introduction

The microprocessor communicates with a large number of I ICs in the set. To ensure good communication and to make digital diagnosis possible, the microprocessor has to know which ICs to address. The presence/absence of these specific ICs (or functions) is made known by the option codes.
Notes:
After changing the option(s), save them with the STORE command.
The new option setting becomes active after the TV is switched “off” and “on” again with the mains switch (the EAROM is then read again).
Alignments
2
C
EN 29LC9.2A LA 6.

6.4.2 How To Set Option Codes

When the NVM is replaced, all options will require resetting. To be certain that the factory settings are reproduced exactly, you must set all option numbers. You can find the correct option numbers in table “Option Codes OP1...OP7” below.
How to Change Options Codes
An option code (or “option byte”) represents eight different options (bits). When you change these numbers directly, you can set all options very quickly. All options are controlled via ten option bytes (OP1... OPA). Activate SAM and select “Options”. Now you can select the option byte (OP1 to OPA) with the CURSOR UP/ DOWN keys, and enter the new 3 digit (decimal) value. For the correct factory default settings, see Table 6-5 Option code overview. For more detailed information, see Table 6-6 Option codes at bit level (OP1-OP7)
. If an option is set (value “1”), it represents a certain decimal value. When all the correct options (bits) are set, the sum of the decimal values of each Option Byte (OP) will give the option code.
Table 6-5 Option code overview
CTN Option Code Display Code
32PFL5609D/30 037 068 208 248 136 087 188 066 076 005 204
42PFL5609D/30 037 068 208 248 136 087 188 066 076 006 205
42PFL7409D/30 085 068 208 248 136 087 188 066 076 001 183
47PFL5609D/30 037 068 208 248 136 087 188 066 076 006 203
47PFL7409D/30 085 068 208 248 136 087 188 066 076 001 186
2010-Jul-01
EN 30 LC9.2A LA6.
Alignments
Option Bit Overview
Below find an overview of the Option Codes on bit level.
Table 6-6 Option codes at bit level (OP1-OP7)
Option Byte & Bit Dec. Value Option Name Description
Byte OP1
Bit 7 (MSB) 128 Reserved not used (Reserved)
Bit 6 64 OPC_MJC_3 0 = MJC is not available; 1 = MJC (60 Hz) is for 768p is available; 2 = MJC (60 Hz) for 1080p is
Bit 5 32 OPC_MJC_2
Bit 4 16 OPC_MJC
Bit 3 8 OPC_REGION_SPECIFIC2 EU: 0-3 = Provision for ATS & ACI; LATAM: 0 = VChip is not available; 1 = VChip is available;
Bit 2 4 OPC_REGION_SPECIFIC
Bit 1 2 OPC_REGION2 0 = EU; 1 = AP; 2 = LATAM; 3 = Reserved
Bit 0 (LSB) 1 OPC_REGION
Byte OP2
Bit 7 (MSB) 128 OPC_AV2_SCART2_2 EU: (Provision): 0 = SCART 2 is not available; 1 = SCART 2 is available (CVBS + RGB); 2 =
Bit 6 64 OPC_AV2_SCART2
Bit 5 32 Reserved not used (Reserved)
Bit 4 16 Reserved not used (Reserved)
Bit 3 8 OPC_CI_PLUS (Provision EU: ON = CI+ is available; OFF = CI+ is not available
Bit 2 4 OPC_LIGHT_SENSOR ON = Light Sensor is available; OFF = Light Sensor is not available
Bit 1 2 OPC_AMBILIGHT_2 0 = AmbiLight is not available; 1 = Mono AmbiLight is available; 2 = Stereo AmbiLight is available;
Bit 0 (LSB) 1 OPC_AMBILIGHT
Byte OP3
Bit 7 (MSB) 128 OPC_SideHDMI ON = sideHDMI (HDMI4) is available; OFF = sideHDMI (HDMI4) is not available
Bit 6 64 OPC_SideAV_2 0 = S ideAV is not available; 1 = SideAV_CVBS is available; 2 = SideAV_CVBS_SVHS is available;
Bit 5 32 OPC_SideAV
Bit 4 16 OPC_VGA ON = VGA is available; OFF = VGA is not available
Bit 3 8 Reserved not used (Reserved)
Bit 2 4 OPC_HDMI3 ON = HDMI3 is available; OFF = HDMI3 is not available
Bit 1 2 OPC_AV3_2 0 = AV3 is not available; 1 = AV3_CVBS is available; 2 = AV3_CVBS_SVHS is available;
Bit 0 (LSB) 1 OPC_AV3
Byte OP4
Bit 7 (MSB) 128 OPC_SHOP_MODE ON = Shop mode is available; OFF = Shop mode is not available
Bit 6 64 OPC_BACKLIGHT_DEEPDIMMING ON = Backlight Deep Dimming is available; OFF = Backlight Deep Dimming is not available
Bit 5 32 OPC_BACKLIGHT_BOOST ON = Backlight Boosting is available; OFF = Backlight Boosting is not available
Bit 4 16 OPC_BACKLIGHT_DIMMING ON = Backlight Dimming is available; OFF = Backlight Dimming is not available
Bit 3 8 OPC_BBD ON = Black Bar Detection is available; OFF = Black Bar Detection is not available
Bit 2 4 Reserved not used (Reserved)
Bit 1 2 Reserved not used (Reserved)
Bit 0 (LSB) 1 Reserved not used (Reserved)
Byte OP5
Bit 7 (MSB) 128 OPC_DIGITAL_OPTION_2 EU: 0 = DVB-T; 1 = DVB-T + DVB-C; 2 = DVB MPEG4 (with DVB-T); DVB MPEG4 (with DVB-C);
Bit 6 64 OPC_DIGITAL_OPTION
Bit 5 32 Reserved not used (Reserved)
Bit 4 16 OPC_ADC (Provision) ON = Auto Description Channel is supported; OFF = Auto Description Channel is not supported
Bit 3 8 OPC_LIP_SYNC ON = Lip Sync is available; OFF = Lip Sync is not available
Bit 2 4 OPC_SURROUND_VDOLBY ON = Virtual Dolby available; OFF = Incredible Surround available
Bit 1 2 Reserved not used (Reserved)
Bit 0 (LSB) 1 Reserved not used (Reserved)
Byte OP6
Bit 7 (MSB) 128 Reserved not used (Reserved)
Bit 6 64 OPC_VPB_4 0 = Video playback (VPB) is not supported
Bit 5 32 OPC_VPB_3
Bit 4 16 OPC_VPB_2
Bit 3 8 OPC_VPB
Bit 2 4 OPC_MP3_PHOTO ON = Photo viewer & MP3 player are available; OFF = Photo viewer & MP3 player are not available
Bit 1 2 OPC_VIEW_FOR_YOU ON = View for you feature is available; OFF = View for you feature is not available
Bit 0 (LSB) 1 OPC_VIRGIN_MODE ON = Virgin Mode (PNP) is available; OFF = Virgin Mode (PNP) is not available
Byte OP7
Bit 7 (MSB) 128 OPD_MHEG (Provision) ON = MHEG is supported; OFF = MHEG is not supported
Bit 6 64 Reserved not used (Reserved)
Bit 5 32 OPC_PIXELPLUS_LINK ON = CEC pixelplus link is supported; OFF = CEC pixelplus link is not supported
Bit 4 16 OPC_SYS_AUD_CTRL ON = CEC system audio control is supported; OFF = CEC system audio control is not supported
Bit 3 8 OPC_RC_PASSTHROUGH ON = CEC RC pass through is supported; OFF = CEC RC pass through is not supported
Bit 2 4 OPC_CEC ON = CEC is available; OFF = CEC is not available
Bit 1 2 OPC_OAD2 (Provision) 0 = OFF (OAD/OTA is not supported); 1 = Country dependent; 2 = Always ON
Bit 0 (LSB) 1 OPC_OAD (Provision)
Byte OP8
Bit 7 (MSB) 128 OPC_DEMO_AMBILIGHT ON = AmbiLight demo is available; OFF = AmbiLight demo is not available
Bit 6 64 OPC_DEMO_PP_PLUS ON = PP+ demo is available (Provision); OFF = PP+ demo is not available
available (Provision); 3 = Reserved; 4 = MJC (100/120 Hz) for 768p is available (Provision); 5 = MJC (100/120 Hz) for 1080p is available; 6-7 = Reserved
2-3: Reserved; AP: 0 = China set; 1 = Hong Kong set; 2 = India set; 3 = Rest of AP
SCART 2 is available (CVBS + YC) (Provision); 3 = Reserved; Non-EU (Provision): 0 = AV2 is not available; 1 = AV2_CVBS is available; 2 = AV2_CVBS_SVHS is available; 3 = AV2_CVI is available
3 = Reserved
3 = SideAV_CVI is available
3 = AV3_CVI is available
AP: 0 = Analog; 1 = China DTV; 2 = Hong Kong DTV; 3 = Reserved
1-16 = Combination of OPC_VBP: MP2 (0 = not support, 1 = support) OPC_VBP_2: MP4 (0 = not support, 1 = support) OPC_VBP_3: VC1 (0 = not support, 1 = support) OPC_VBP_4: DivX (0 = not support, 1 = support)
2010-Jul-01
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