Philips LC10.1A LA Schematic

Colour Television Chassis
18920_000_100310.eps
100310
LA

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 21
7. Circuit Descriptions 23
8. IC Data Sheets 27
9. Block Diagrams Wiring Diagram 42" - 46" (van Gogh) 35 Block Diagram Video 36 Block Diagram Audio 37 Block Diagram Control & Clock Signals 38 Block Diagram I2C 39 Supply Lines Overview 40
10. Circuit Diagrams and PWB Layouts Diagram PWB SSB: DC-DC SSB: TUNER & Demodulator (B02) 42 60-61 SSB: CLASS-D (B03) 43 60-61 SSB: Power MT MT8222 (B04A) 44 60-61 SSB: DDR2 (B04B) 45 60-61 SSB: Flash and EJTAG (B04C) 46 60-61 SSB: Stand-by (B05) 47 60-61 SSB: I/Os HDMI (B06A) 48 60-61 SSB: I/Os Audio (B06B) 49 60-61 SSB: I/Os YPbPr (B06C) 50 60-61 SSB: I/Os Others (B06D) 51 60-61 SSB: DC-DC & Power 8282 (B07A) 52 60-61 SSB: SDRAM MT8282 (B07B) 53 60-61 SSB: LVDS MT8282 (B07C) 54 60-61 SSB: TCON Control (B08A) 55 60-61 SSB: TCON DC/DC (B08B) 56 60-61 SSB: P Gamma & VCOM & Flash (B08C) 57 60-61 SSB: MPD (B08D) 58 60-61
©
Copyright 2010 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.
(B01) 41 60-61
SSB: Mini LVDS (B08E) 59 60-61 SSB: SRP List Explanation 62 SSB: SRP List 63
11. Styling Sheets Styling Sheet 32" - 46" 64
Published by ER/JY 1063 BU TV Consumer Care Printed in the Netherlands Subject to modification EN 3122 785 18920
2010-Mar-19
EN 2 LC10.1A 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
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:
32PFL5605/93
32PFL5605/98
40PFL5605/93
40PFL5605/98
46PFL5605/67
46PFL5605/93
46PFL5605/98
van Gogh 3122 785 18920
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-Mar-19

2.3 Connections

18920_001_100317.eps
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Side connectors
Back connectors
Bottom connectors
543
678910
1
2
1 2 3 4
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090121
Technical Specifications and Connections
EN 3LC10.1A 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

1 - USB2.0
Figure 2-2 USB (type A)
1-+5V k 2 -Data (-) jk 3 -Data (+) jk 4 -Ground Gnd H
2 - HDMI: Digital Video, Digital Audio - In (see HDMI 1 & 2)

2.3.2 Rear Connections

3 - CVI2: 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
4 - Service Connector (UART)
1 -Ground Gnd H 2 -UART_TX Transmit k 3 -UART_RX Receive j
PP
PP
PP
RMS
RMS

Figure 2-1 Connection overview

/ 75 Ω jq
/ 75 Ω jq / 75 Ω jq
/ 10 kΩ jq / 10 kΩ jq
5 - AV IN: 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
5 - AV IN: Cinch: Video CVBS - In, Audio - In
Ye - Video CVBS 1 V Wh - Audio L 0.5 V Rd - Audio R 0.5 V

2.3.3 Bottom Connections

6 - CVI1: 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
PP
PP
PP
7 - Cinch: S/PDIF - Out
Bk - Coaxial 0.4 - 0.6V
8 - Aerial - In
- - IEC-type (EU) Coax, 75 Ω D
/ 75 Ω j
/ 75 Ω j
PP
/ 75 ohm jq
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
/ 75 Ω jq
/ 75 Ω jq
PP
/ 75 Ω jq
PP
/ 10 kΩ jq
RMS
/ 10 kΩ jq
RMS
/ 75 ohm kq
PP
2010-Mar-19
EN 4 LC10.1A LA2.
1
6
10
11
5
15
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1
18 2
9 - VGA: Video RGB - In
Technical Specifications and Connections
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
9 - Mini Jack: Audio - In
Bk - Audio 0.5 V
/ 10 kΩ jo
RMS
10 - 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
2010-Mar-19
Precautions, Notes, and Abbreviation List

3. Precautions, Notes, and Abbreviation List

EN 5LC10.1A 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. Of de set ontploft!
Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to the following points:
Route the wire trees correctly and fix them with the mounted cable clamps.
Check the insulation of the Mains/AC Power lead for external damage.
Check the strain relief of the Mains/AC Power cord for proper function.
Check the electrical DC resistance between the Mains/AC Power plug and the secondary side (only for sets that have a Mains/AC Power isolated power supply):
1. Unplug the Mains/AC Power cord and connect a wire
between the two pins of the Mains/AC Power plug.
2. Set the Mains/AC Power switch to the “on” position
(keep the Mains/AC Power cord unplugged!).
3. Measure the resistance value between the pins of the
Mains/AC Power plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be between 4.5 MΩ and 12 MΩ.
4. Switch “off” the set, and remove the wire between the
two pins of the Mains/AC Power plug.
Check the cabinet for defects, to prevent touching of any inner parts by the customer.
picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3).
Where necessary, measure the waveforms and voltages
with (D) and without (E) aerial signal. Measure the voltages in the power supply section both in normal operation (G) and in stand-by (F). These values are indicated by means of the appropriate symbols.

3.3.2 Schematic Notes

All resistor values are in ohms, and the value multiplier is often used to indicate the decimal point location (e.g. 2K2 indicates 2.2 kΩ).
Resistor values with no multiplier may be indicated with either an “E” or an “R” (e.g. 220E or 220R indicates 220 Ω).
All capacitor values are given in micro-farads (μ=× 10 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

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.
2010-Mar-19
EN 6 LC10.1A LA3.
Precautions, Notes, and Abbreviation List

3.3.6 Alternative BOM identification

It should be noted that on the European Service website, “Alternative BOM” is referred to as “Design variant”.
The third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific TV set. In general, it is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different suppliers. This will then result in sets which have the same CTN (Commercial Type Number; e.g. 28PW9515/12) but which have a different B.O.M. number. By looking at the third digit of the serial number, one can identify which B.O.M. is used for the TV set he is working with. If the third digit of the serial number contains the number “1” (example: AG1B033500001), then the TV set has been manufactured according to B.O.M. number 1. If the third digit is a “2” (example: AG2B0335000001), then the set has been produced according to B.O.M. no. 2. This is important for ordering the correct spare parts! For the third digit, the numbers 1...9 and the characters A...Z can be used, so in total: 9 plus 26= 35 different B.O.M.s can be indicated by the third digit of the serial number.
Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production centre (e.g. AG is Bruges), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the production year, and digits 7 and 8 refer to production week (in example below it is 2006 week 17). The 6 last digits contain the serial number.
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-Mar-19
Precautions, Notes, and Abbreviation List
EN 7LC10.1A 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-Mar-19
EN 8 LC10.1A 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 1 280 × 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 1600 × 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 1280 × 768 (15:9) XTAL Quartz crystal XGA 1024 × 768 (4:3) Y Luminance signal Y/C Luminance (Y) and Chrominance (C)
signal YPbPr Component video. Luminance and
scaled color difference signals (B-Y
and R-Y) YUV Component video
2010-Mar-19

4. Mechanical Instructions

PSU-SSB cable twisted
at PSU side
Avoid taping FFC on top of panel lamp holder/ folded area
Tape should be at least 13mm away from PSU (Safety concern
)
Secure mains cord
cable away from BC
screw bos
s
1x tape (200mm) 8x tapes (100mm)
2x 11mm clamp
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Mechanical Instructions
EN 9LC10.1A LA 4.
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
Notes:
Figures below can deviate slightly from the actual situation, due to the different set executions.

Figure 4-1 Cable dressing 32"

2010-Mar-19
EN 10 LC10.1A LA4.
Confidential
PSU-SSB cable twisting in between VESA ba
r
Avoid taping FFC on top of panel lamp holder/ folded are
a
Tape should be at least 13mm away from PSU (Safety concern
)
Speaker cable routing left –
RED, right - WHITE
Secure mains cord cable away from BC screw bos
s
1x tape (200mm) 9x tapes (100mm)
2x 17mm clamp
1x 11mm clamp
18920_101_100316.eps
100316
Tape should be at least 13mm away from PSU (Safety concern
)
Avoid taping FFC on top of panel lamp holder/metal bar screw poin
t
3x tape (200mm)
8x tapes (100mm) 3x 11mm clamp
18920_102_100317.eps
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Mechanical Instructions

Figure 4-2 Cable dressing 40"

2010-Mar-19

Figure 4-3 Cable dressing 46"

4.2 Service Positions

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11
2
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26252423
For easy servicing of a TV set, the set should be put face down on a soft flat surface, foam buffers or other specific workshop tools. Ensure that a stable situation is created to perform measurements and alignments. When using foam bars take care that these always support the cabinet and never only the display. Caution: Failure to follow these guidelines can seriously damage the display! Ensure that ESD safe measures are taken.

4.3 Assy/Panel Removal

Instructions below apply to the 32PFL5605/xx, but will be similar for other models.

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.
Mechanical Instructions
EN 11LC10.1A LA 4.
Figure 4-6 Rear cover -3-
Special note
Some models come with mechanical catches at top of the rear cover. To open them, please refer to Figure 4-4
to Figure 4-7
for details.
Figure 4-4 Rear cover -1-
Figure 4-7 Rear cover -4-
1. Lift the rear cover on the bottom side [1].
2. Push the cover in direction [2] to unlock the catches.
3. If the rear cover catches still lock, place a flat screwdriver between flare and rear cover and turn it until the rear cover and the flare are disassembled from the catch.
4. The location of the catches are indicated with [3], [4], [5] and [6].

4.3.2 Speakers

Tweeters (when applicable)
Each tweeter unit is mounted with one screw. When defective, replace the whole unit.
Loudspeaker/subwoofer
The loudspeaker/subwoofer is located in the centre of the set, and is fixed with two screws. When defective, replace the whole unit.
Figure 4-5 Rear cover -2-
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Mechanical Instructions

4.3.3 Main Power Supply

Refer to Figure 4-8
for details.
2
1
2
2
Figure 4-8 Main Power Supply
1. Unplug all connectors [1].
2. Remove the fixation screws [2].
3. Take the board out. When defective, replace the whole unit.
Be aware to (re)place the spacers [3].

4.3.6 IR & LED Board

Refer to Figure 4-10
3
2
, Figure 4-11 and Figure 4-12 for details.
1
2
1
3
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Figure 4-10 IR & LED Board -1-

4.3.4 Small Signal Board (SSB)

Refer to Figure 4-9
for details.
Figure 4-9 SSB
1. Unplug all connectors [1] and [2].
2. Remove the fixation screws [3].
3. Take the board out. When defective, replace the whole unit.
Figure 4-11 IR & LED Board -2-

4.3.5 Mains Switch

The mains switch assy is mounted below the PSU on the front bezel with two screws. When replacing the switch, remove it from its bracket.
2010-Mar-19
Figure 4-12 IR & LED Board -3-
1. Remove the stand [1].
2. Remove the IR & LED board cover [2].
3. Release the clips [3] that secure the IR & LED board.
4. Remove the connectors [4] on the IR/LED board.

4.3.7 Local Control Board

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Mechanical Instructions
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Refer to Figure 4-13
1. Unplug the connector on the IR & LED board that leads to the Local Control board as described earlier.
2. Release the cable from its clamps/tape.
3. Release the clip on top of the unit [1] and take the unit out.
When defective, replace the whole unit.

4.3.8 LCD Panel

Refer to Figure 4-14
1. Remove the Stand and IR/LED board [A] as earlier described.
2. Remove the Speakers/Subwoofer [B] as earlier described.
3. Remove the PSU [C] and SSB [D] as earlier described.
4. Remove the Mains Switch [E] as earlier described.
for details.
for details.
Figure 4-13 Keyboard Control board
5. Remove the Local Control board [F] as earlier described.
6. Remove the brackets [1].
7. Remove the clamps [2].
8. Remove the flare. Now the LCD Panel can be lifted from the front cabinet.

4.4 Set Re-assembly

To re-assemble the whole set, execute all processes in reverse order.
Figure 4-14 LCD Panel removal (based on 32" model)
Notes:
While re-assembling, make sure that all cables are placed
Pay special attention not to damage the EMC foams in the
and connected in their original position.
set. Ensure that EMC foams are mounted correctly.
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MODEL:
32PF9968/10
PROD.SERIAL NO:
AG 1A0620 000001
040
39mm
27mm
(CTN Sticker)
Display Option
Code
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).
2010-Mar-19

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: “AAAAAB XX.YY”, where:
AAAAA is the chassis name: LC101.
B is the region indication: E= Europe, A= AP/China, U= NAFTA, L= LATAM.
XX is the main version number: this is updated with a major change of specification (incompatible with the previous software version). Numbering will go from 01 - 99 and AA ­ZZ. – If the main version number changes, the new version
number is written in the NVM.
– If the main version number changes, the default
settings are loaded.
YY is the sub version number: this is updated with a minor change (backwards compatible with the previous 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/HOME 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”.
Service Modes, Error Codes, and Fault Finding
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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.

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” pads on the TV board during cold start (see Figure 5-2 (remove the short after start-up). Caution: 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
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).
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 accidentally in Factory mode (with an “F” displayed on the screen), pressing and holding “VOL-“ and “CH-” simultaneously should exit the Factory mode.

5.2.3 Service Alignment Mode (SAM)

Figure 5-2 Service pads (SSB component side)
On Screen Menu
After activating SDM, the following items are displayed, with “SDM” in the upper right corner of the screen to indicate that the television is in Service Default Mode. Menu items and explanation:
xx.x hrs: Operating hours (in decimal).
AAAAAB XX.YY: See paragraph Software Identification,
Version, and Cluster for the SW name definition.
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 items are displayed, with “SAM” in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.
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Menu items and explanation:
1. System Inform.
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.
ERR: 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 6.5 Option Settings in the Alignments section for a detailed description. Ten codes are possible.
2. Clear Codes. Erases the contents of the error buffer. Select this menu item and press the MENU RIGHT key on the remote control. The content of the error buffer is cleared.
3. Options. To set the option bits. See paragraph 6.5 Option Settings description.
4. RGB Alignment. To align the White Tone. See White Tone Alignment:
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.
7. Tuner.
AGC Adjustment: See paragraph 6.3.1
Store: To store the data.
8. Auto ADC. Refer to chapter 6. Alignments information.
9. EDID Write Enable. Enables EDID writing.
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.
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 the “Alignments” chapter for a detailed
for a detailed description.
for
instructions.
for detailed
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.

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).
After entering the Customer Service Mode, the following items are displayed:
Menu Explanation CSM1
1. Set Type. Type number, e.g. 32PFL5605/93. (*)
2. Production code. Product serial no., e.g. BZ1A1008123456 (*). BZ= Production centre, 1= BOM code, A= Service version change code, 10= Production year, 08= Production week, 123456= Serial number.
3. not used
4. - Option Code 1. Option code information (group 1).
- Option Code 2. Option code information (group 2).
5. SSB. Indication of the SSB factory ID (= 12nc). (*)
6. Display. Indication of the display ID (=12 nc). (*)
7.
PSU. Indication of the PSU factory ID (= 12nc).
(*) 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.
Menu Explanation CSM2
1. Current Main SW. Shows the main software version.
2. Standby SW. Shows the standby software version.
3. MT8282 SW. Shows the MT8282 software version.
4. Bootloader ID. Shows the Bootloader software ID.
5. NVM Version. The NVM software version no.
6. Flash ID. Shows the flash ID.
Menu Explanation CSM3
1. Signal Quality. Shows the signal quality (No Signal/ POOR/AVERAGE/GOOD).
2. not used
3. Key (HDCP). Indicates if the HDMI keys (or HDCP keys) are valid or not.
4. not used
5. not used
6. HDMI audio format input stream. Specification of HDMI audio input stream.
7. HDMI video format input stream. Specification of HDMI video input stream.
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How to Exit
To exit CSM, use one of the following methods:
Press the MENU/HOME button on the remote control transmitter.
Press the POWER button on the remote control transmitter.
Press the POWER button on the television set.

5.3 Service Tools

5.3.1 ComPair

Introduction
ComPair (Computer Aided Repair) is a Service tool for Philips Consumer Electronics 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
TO
UART SERVICE
CONNECTOR
2
C
I
RS232 /UART
ComPair II Developed by Philips Brugge
Optional power
5V DC
ComPair II
RC in
Optional
Switch
Power ModeLink/
Activity
HDMI
2
C only
I
UART SERVICE
CONNECTOR
RC out
TO
I2C SERVICE
CONNECTOR
Multi
function
PC
Program software can be downloaded from the Philips Service website.
Additional cables for VCOM Alignment
•ComPair/I
2
C interface cable: 3122 785 90004.
ComPair/VGA adapter cable: 9965 100 09269.
Note: If you encounter any problems, contact your local support desk.

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 I code for a “General I 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.

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).
Via the blinking LED procedure (when you have no
•Via ComPair.
2
C device.
2
C error.
2
2
C failure” and “Protection errors” is
C bus (CAUSE), the error
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
picture). See paragraph 5.5 The Blinking LED Procedure.
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Figure 5-3 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.

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 LC10 platform, only two boards are present: the SSB and the PSU, meaning only three layer 1 errors are defined:
2: SSB
3: PSU
4: POK line defective.
The following “layer 2” errors have been assigned:
00: no error
11: DC protection of speakers; leads to “Protection”
16: +12V protection error (or 12V failure), PSU defective; leads to “Protection”
18: POK line error; leads to “Error”
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21: Post video processing IC (MT8282); leads to “Error”
2
27: I
34: Tuner I
35: EEPROM I
C bus error IF demodulator; leads to “Error”
2
C bus error; leads to “Error”
2
C bus error (M24C16); leads to “Protection”

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.

5.6 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 NVM Editor

In some cases, it can be convenient if one directly can change the NVM contents. This can be done with the “NVM Editor” in SAM mode. With this option, single bytes can be changed.
Caution:
Do not change these, without understanding the function of each setting, because incorrect NVM settings may seriously hamper the correct functioning of the TV set!
Always write down the existing NVM settings, before changing the settings. This will enable you to return to the original settings, if the new settings turn out to be incorrect.

5.6.2 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 pads on the SSB (keep short circuited, see Figure 5-2
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 will perform a restart. After this, put the set to standby and remove the short-circuit on the SDM pads.
).

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.
2010-Mar-19
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. 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.

5.6.3 Fault finding tips Tuner Section

When there is no picture in analog RF mode:
Check if supply voltages 5 V are present at test points F205, F206 and F231.
Check whether picture is present in AV.
•Check if I
2
C lines are working properly (3.3 V).
Store a known channel manually and check if there is an IF output signal at the tuner pin 12. If not, the tuner may be faulty.
Feed-in a 105 dBuV signal at the tuner pin 12 and check whether there is an CVBS output signal from the IF demodulator. If not, the IF demodulator may be faulty. Check the components in this area.
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5.6.4 Fault finding tips Audio Section

Perform following actions for trouble shooting in the Audio section. Also refer to Figure 5-4
.
Check presence of +24VAUDIO voltage on testpoint F121 in diagram B01.
Check presence of +24VAUDIO voltage on pins 19/20 of the class-D amplifier or testpoint F300 in diagram B03.
Check availability of audio input signal at pins 5 (L) and 6 (R) of the class-D amplifier in diagram B03.
Check signal level on pin 4 (MUTE) of the class-D amplifier in diagram B03. The level should be LOW (0 V).
Check signal level on pin 2 (SD) of the class-D amplifier in diagram B03. The level should be HIGH (3 V).
Figure 5-4 Fault finding tree audio
2010-Mar-19
EN 20 LC10.1A LA5.

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. 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 “Menu” icon will be prompted automatically. Go to the “Setup” menu for local updates. The TV will prompt the “upgrade” message; press “Acknowledge” to continue, after which the upgrading will start automatically. As soon as the programming is finished, the set will restart. In the “Setup” menu you can check if the latest software is running.
Service Modes, Error Codes, and Fault Finding

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. Only files that are relevant for Service are mentioned here!
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 "NMLC101A.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: "NMLC101A.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-Mar-19
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