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.
Published by ER/EL 0972 BU TV Consumer Care, the NetherlandsSubject to modificationEN 3122 785 18672
2009-Dec-18
EN 2Q548.1E LB1.
Revision List
1.Revision List
Manual xxxx xxx xxxx.0
•First release.
Manual xxxx xxx xxxx.1
•All Chapters: updated CTN overview, see Table 2-1
•Chapter 5: added SSB replacement flowcharts in section
5.8.12
•Chapter 6: changed option codes, see Table 6-3 and
Table 6-4
Manual xxxx xxx xxxx.2
•Chapter 2: improved readability of the connection
overview; see figure 2-1
.
.
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).
2.1Technical 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
CTNStylingPublished in:
40PFL7664H/12
40PFL8664H/12
Edge LIT3122 785 18670
Edge LIT3122 785 18670
2.2Directions for Use
You can download this information from the following websites:
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.
2.3.1Side Connections
1 - Cinch: Audio - In
Rd - Audio R 0.5 V
Wh - Audio L 0.5 V
2 - Cinch: Video CVBS - In
Ye - Video CVBS 1 V
/ 10 kΩ jq
RMS
/ 10 kΩ jq
RMS
/ 75 Ω jq
PP
AUDIO IN:
LEFT / RIGHT
HDMI 1 / DVI
HDMI 2 / DVI
HDMI 3 / DVI
13
EXT 3
14
Figure 2-1 Connection overview
4 - Head phone (Output)
Bk - Head phone 32 - 600 Ω / 10 mW ot
5 - Common Interface
68p - See diagram B05C SSB: PCMCIA
6 - USB2.0
VGA
HDMI 3
HDMI 2 HDMI 1
1516
1 2 3 4
TV ANTENNA
18672_001_091218.eps
10000_022_090121.eps
091218
090121
jk
3 - S-Video (Hosiden): Video Y/C - In
1 - Ground Y Gnd H
2 - Ground C Gnd H
3 - Video Y 1 V
4 - Video C 0.3 V
/ 75 Ω j
PP
/ 75 Ω j
PP
Figure 2-2 USB (type A)
1-+5V k
2 - Data (-) jk
3 - Data (+) jk
4 - Ground Gnd H
2009-Dec-18
EN 4Q548.1E LB2.
Technical Specifications and Connections
7 - HDMI: Digital Video, Digital Audio - In
(see connector 15)
8 - Service Connector (UART)
1 - Ground Gnd H
2 - UART_TX Transmit k
3 - UART_RX Receive j
2.3.2 Rear Connections
9 - EXT1/2: Video RGB - In, CVBS - In/Out, Audio - In/Out (*)
20
21
10000_001_090121.eps
2
1
090121
Figure 2-3 SCART connector
1 - Audio R 0.5 V
2 - Audio R 0.5 V
3 - Audio L 0.5 V
/ 1 kΩ k
RMS
/ 10 kΩ j
RMS
/ 1 kΩ k
RMS
4 - Ground Audio Gnd H
5 - Ground Blue Gnd H
6 - Audio L 0.5 V
7 - Video Blue 0.7 V
8 - Function Select 0 - 2 V: INT
/ 10 kΩ j
RMS
/ 75 Ω jk
PP
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3 j
9 - Ground Green Gnd H
10 - n.c.
11 - Video Green 0.7 V
12 - n.c.
/ 75 Ω j
PP
13 - Ground Red Gnd H
14 - Ground P50 Gnd H
15 - Video Red 0.7 V
16 - Status/FBL 0 - 0.4 V: INT
/ 75 Ω j
PP
1 - 3 V: EXT / 75 Ω j
17 - Ground Video Gnd H
18 - Ground FBL Gnd H
19 - Video CVBS/Y 1 V
20 - Video CVBS 1 V
21 - Shield Gnd H
/ 75 Ω k
PP
/ 75 Ω j
PP
(*) Note: The AV output on SCART 1 or 2 will be enabled (SW
controlled) for analogue RF channels only, if the decoder is
turned “on” in the Menu: select Setup -> Installation -> Decoder
-> Status: select SCART 1 or 2 -> Channel: select any
analogue channel.
10 - Cinch: S/PDIF - Out
Bk - Coaxial 0.4 - 0.6V
/ 75 Ω kq
PP
11 - Cinch: Audio - Out
Rd - Audio - R 0.5 V
Wh - Audio - L 0.5 V
/ 10 kΩ kq
RMS
/ 10 kΩ kq
RMS
12 - VGA: Video RGB - In
1
5
6
11
10000_002_090121.eps
10
15
090127
Figure 2-4 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
Gn - Video Y 1 V
Bu - Video Pb 0.7 V
Rd - Video Pr 0.7 V
Rd - Audio - R 0.5 V
Wh - Audio - L 0.5 V
/ 75 Ω jq
PP
/ 75 Ω jq
PP
/ 75 Ω jq
PP
/ 10 kΩ jq
RMS
/ 10 kΩ jq
RMS
15 - HDMI 1, 2 & 3: Digital Video, Digital Audio - In
19
182
10000_017_090121.eps
1
090428
Figure 2-5 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
16 - Aerial - In
-- IEC-type (EU) Coax, 75 Ω D
17 - RJ45: Ethernet (if present)
112345678
E_06532_025.eps
210905
Figure 2-6 Ethernet connector
1 - TD+ Transmit signal k
2 - TD- Transmit signal k
3 - RD+ Receive signal j
4 - CT Centre Tap: DC level fixation
5 - CT Centre Tap: DC level fixation
6 - RD- Receive signal j
7 - GND Gnd H
8 - GND Gnd H
2009-Dec-18
Technical Specifications and Connections
2.4Chassis Overview
Refer to chapter Block Diagrams for PWB/CBA locations.
EN 5Q548.1E LB2.
2009-Dec-18
EN 6Q548.1E LB3.
Precautions, Notes, and Abbreviation List
3.Precautions, Notes, and Abbreviation List
Index of this chapter:
3.1 Safety Instructions
3.2 Warnings
3.3 Notes
3.4 Abbreviation List
3.1Safety 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.
3.3.2Schematic 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.
3.3.3Spare Parts
For the latest spare part overview, consult your Philips Spare
Part web portal.
3.3.4BGA (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
),
).
3.2Warnings
•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.
3.3Notes
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
3.3.5Lead-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.
2009-Dec-18
Precautions, Notes, and Abbreviation List
EN 7Q548.1E LB3.
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
BJ3.0E LA
S
10000_024_090121.eps
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
090121
3.4Abbreviation List
0/6/12SCART switch control signal on A/V
board. 0 = loop through (AUX to TV),
6 = play 16 : 9 format, 12 = play 4 : 3
format
AARAAutomatic Aspect Ratio Adaptation:
algorithm that adapts aspect ratio to
remove horizontal black bars; keeps
the original aspect ratio
ACIAutomatic Channel Installation:
algorithm that installs TV channels
directly from a cable network by
means of a predefined TXT page
ADCAnalogue to Digital Converter
AFCAutomatic Frequency Control: control
signal used to tune to the correct
frequency
AGCAutomatic Gain Control: algorithm that
controls the video input of the feature
box
AMAmplitude Modulation
APAsia Pacific
ARAspect Ratio: 4 by 3 or 16 by 9
ASFAuto Screen Fit: algorithm that adapts
aspect ratio to remove horizontal black
bars without discarding video
information
ATSCAdvanced Television Systems
Committee, the digital TV standard in
the USA
ATVSee Auto TV
Auto TVA hardware and software control
system that measures picture content,
and adapts image parameters in a
dynamic way
AVExternal Audio Video
AVCAudio Video Controller
AVIPAudio Video Input Processor
B/GMonochrome TV system. Sound
carrier distance is 5.5 MHz
BDSBusiness Display Solutions (iTV)
BLRBoard-Level Repair
BTSCBroadcast Television Standard
Committee. Multiplex FM stereo sound
system, originating from the USA and
used e.g. in LATAM and AP-NTSC
countries
B-TXTBlue TeleteXT
CCentre channel (audio)
CECConsumer Electronics Control bus:
remote control bus on HDMI
connections
CLConstant Level: audio output to
connect with an external amplifier
CLRComponent Level Repair
ComPairComputer aided rePair
CPConnected Planet / Copy Protection
CSMCustomer Service Mode
CTIColor Transient Improvement:
manipulates steepness of chroma
transients
CVBSComposite Video Blanking and
Synchronization
DACDigital to Analogue Converter
DBEDynamic Bass Enhancement: extra
low frequency amplification
DCMData Communication Module. Also
referred to as System Card or
Smartcard (for iTV).
DDCSee “E-DDC”
D/KMonochrome TV system. Sound
carrier distance is 6.5 MHz
DFIDynamic Frame Insertion
2009-Dec-18
EN 8Q548.1E LB3.
Precautions, Notes, and Abbreviation List
DFUDirections For Use: owner's manual
DMRDigital Media Reader: card reader
DMSDDigital Multi Standard Decoding
DNMDigital Natural Motion
DNRDigital Noise Reduction: noise
reduction feature of the set
DRAMDynamic RAM
DRMDigital Rights Management
DSPDigital Signal Processing
DSTDealer Service Tool: special remote
control designed for service
technicians
DTCPDigital Transmission Content
Protection; A protocol for protecting
digital audio/video content that is
traversing a high speed serial bus,
such as IEEE-1394
DVB-CDigital Video Broadcast - Cable
DVB-TDigital Video Broadcast - Terrestrial
DVDDigital Versatile Disc
DVI(-d)Digital Visual Interface (d= digital only)
E-DDCEnhanced Display Data Channel
(VESA standard for communication
channel and display). Using E-DDC,
the video source can read the EDID
information form the display.
EDIDExtended Display Identification Data
(VESA standard)
EEPROMElectrically Erasable and
Programmable Read Only Memory
EMIElectro Magnetic Interference
EPGElectronic Program Guide
EPLDErasable Programmable Logic Device
EUEurope
EXTEXTernal (source), entering the set by
SCART or by cinches (jacks)
FDSFull Dual Screen (same as FDW)
FDWFull Dual Window (same as FDS)
FLASHFLASH memory
FMField Memory or Frequency
Modulation
FPGAField-Programmable Gate Array
FTVFlat TeleVision
Gb/sGiga bits per second
G-TXTGreen TeleteXT
HH_sync to the module
HDHigh Definition
HDDHard Disk Drive
HDCPHigh-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.
HDMIHigh Definition Multimedia Interface
HPHeadPhone
IMonochrome TV system. Sound
2
I
CInter IC bus
2
I
DInter IC Data bus
2
I
SInter IC Sound bus
carrier distance is 6.0 MHz
IFIntermediate Frequency
IRInfra Red
IRQInterrupt Request
ITU-656The 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.
ITVInstitutional TeleVision; TV sets for
hotels, hospitals etc.
LSLast 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
LATAMLatin America
LCDLiquid Crystal Display
LEDLight 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
LPLLG.Philips LCD (supplier)
LSLoudspeaker
LVDSLow Voltage Differential Signalling
MbpsMega bits per second
M/NMonochrome TV system. Sound
carrier distance is 4.5 MHz
MHEGPart 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
MIPSMicroprocessor without Interlocked
Pipeline-Stages; A RISC-based
microprocessor
MOPMatrix Output Processor
MOSFETMetal Oxide Silicon Field Effect
Transistor, switching device
MPEGMotion Pictures Experts Group
MPIFMulti Platform InterFace
MUTEMUTE Line
MTVMainstream TV: TV-mode with
Consumer TV features enabled (iTV)
NCNot Connected
NICAMNear Instantaneous Compounded
Audio Multiplexing. This is a digital
sound system, mainly used in Europe.
NTCNegative Temperature Coefficient,
non-linear resistor
NTSCNational 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)
NVMNon-Volatile Memory: IC containing
TV related data such as alignments
O/COpen Circuit
OSDOn Screen Display
OADOver the Air Download. Method of
software upgrade via RF transmission.
Upgrade software is broadcasted in
TS with TV channels.
OTCOn screen display Teletext and
Control; also called Artistic (SAA5800)
P50Project 50: communication protocol
between TV and peripherals
PALPhase Alternating Line. Color system
conditioner)
PIPPicture In Picture
PLLPhase Locked Loop. Used for e.g.
FST tuning systems. The customer
can give directly the desired frequency
PODPoint Of Deployment: a removable
CAM module, implementing the CA
system for a host (e.g. a TV-set)
PORPower On Reset, signal to reset the uP
PTCPositive Temperature Coefficient,
non-linear resistor
PWBPrinted Wiring Board (same as “PCB”)
PWMPulse Width Modulation
QRCQuasi Resonant Converter
QTNRQuality Temporal Noise Reduction
QVCPQuality Video Composition Processor
RAMRandom Access Memory
RGBRed, Green, and Blue. The primary
color signals for TV. By mixing levels
of R, G, and B, all colors (Y/C) are
reproduced.
RCRemote Control
RC5 / RC6Signal protocol from the remote
control receiver
RESETRESET signal
ROMRead Only Memory
RSDSReduced Swing Differential Signalling
data interface
R-TXTRed TeleteXT
SAMService Alignment Mode
S/CShort Circuit
SCARTSyndicat des Constructeurs
d'Appareils Radiorécepteurs et
SCLSerial Clock I
Téléviseurs
SCL-FCLock Signal on Fast I
SDStandard Definition
SDASerial Data I
SDA-FDAta Signal on Fast I
2
C
2
C bus
2
C
2
C bus
SDISerial Digital Interface, see “ITU-656”
SDRAMSynchronous DRAM
SECAMSEequence Couleur Avec Mémoire.
Color system mainly used in France
and East Europe. Color carriers=
4.406250 MHz and 4.250000 MHz
SIFSound Intermediate Frequency
SMPSSwitched Mode Power Supply
SoCSystem on Chip
SOGSync On Green
SOPSSelf Oscillating Power Supply
SPISerial Peripheral Interface bus; a 4-
wire synchronous serial data link
standard
S/PDIFSony Philips Digital InterFace
SRAMStatic RAM
SRPService Reference Protocol
SSBSmall Signal Board
SSCSpread Spectrum Clocking, used to
reduce the effects of EMI
STBSet Top Box
STBYSTand-BY
SVGA800 × 600 (4:3)
SVHSSuper Video Home System
SWSoftware
SWANSpatial temporal Weighted Averaging
Signalling
TSTransport Stream
TXTTeleteXT
TXT-DWDual Window with TeleteXT
UIUser Interface
uPMicroprocessor
UXGA1600 × 1 200 (4:3)
VV-sync to the module
VESAVideo Electronics Standards
Association
VGA640 × 480 (4:3)
VLVariable Level out: processed audio
output toward external amplifier
VSBVestigial Side Band; modulation
method
WYSIWYRWhat You See Is What You Record:
record selection that follows main
picture and sound
WXGA1280 × 768 (15:9)
XTALQuartz crystal
XGA1024 × 768 (4:3)
YLuminance signal
Y/CLuminance (Y) and Chrominance (C)
signal
YPbPrComponent video. Luminance and
scaled color difference signals (B-Y
and R-Y)
YUVComponent video
2009-Dec-18
EN 10Q548.1E LB4.
Mechanical Instructions
4.Mechanical Instructions
Index of this chapter:
4.1 Cable Dressing
4.2 Service Positions
4.3 Assy/Panel Removal
4.4 Set Re-assembly
4.1Cable Dressing
Notes:
•Figures below can deviate slightly from the actual situation,
due to the different set executions.
Figure 4-1 Cable dressing 40PFL8664H/xx
For taping see also Wiring Diagram 40" (Edge LIT)
18670_100_090911.eps
090911
2009-Dec-18
Mechanical Instructions
EN 11Q548.1E LB4.
4.2Service 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
1
Required for sets
1
42"
10000_018_090121.eps
Figure 4-2 Foam bars
The foam bars (order code 3122 785 90580 for two pieces) can
be used for all types and sizes of Flat TVs.
See figure Figure 4-2
for details. Sets with a display of 42" and
larger, require four foam bars [1]. Ensure that the foam bars
are always supporting the cabinet and never only the display.
Caution: Failure to follow these guidelines can seriously
damage the display!
By laying the TV face down on the (ESD protective) foam bars,
a stable situation is created to perform measurements and
alignments. By placing a mirror under the TV, you can monitor
the screen.
090121
4.3Assy/Panel Removal
4.3.1Rear 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.
4.3.2Ambilight
1. After removal of the rear cover, the Ambilight modules are
accessible.
2. Unplug the connector(s).
3. Remove the screws that fixate the unit.
4. Take the unit out.
When defective, replace the whole unit.
4.3.3Speakers
Each speaker unit is mounted with three screws. A sticker on
the unit indicates if it is the right (“R”) or left (“L”) box (seen from
the front side of the TV).
1. Unplug the connectors.
2. Remove the screws that fixate the unit.
3. Take the unit out.
When defective, replace the whole unit.
4.3.4LED/IR
1. Unplug the connectors.
2. Remove the two fixation screws.
3. Take the unit out.
When defective, replace the whole unit.
4.3.5Keyboard Control
1. Release the cable.
2. Unplug the connector.
3. Release the clip on top of the unit and take the unit out.
When defective, replace the whole unit.
4.3.6Temperature Sensor
1. Unplug the connector.
2. Remove the screw.
3. Take the unit out.
When defective, replace the whole unit.
4.3.7Power Supply
1. Unplug all connectors.
2. Remove the fixation screws.
3. Take the unit out.
When defective, replace the whole unit.
4.3.8Small 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. Be careful with the fragile LVDS
connector(s)!
2. Remove all screws that secure the board.
3. Take the board out.
2009-Dec-18
EN 12Q548.1E LB4.
Mechanical Instructions
4.3.9 LCD Panel
See Figure 4-3
1. Remove the stand [1].
2. Unplug connectors 1M20 and 1M21 on the IR/LED [2].
3. Lift the Keyboard Control unit [3] from the frame.
4. Unplug connector 1351 (CN-S-1)on PSU-1 [4].
5. Unplug connectors 1316 & 1317 to the LED backlight [5].
6. Unplug LVDS connectors 1G50 and 1G51 on the SSB [6].
7. Unplug connector 1351 (CN-S-1-A) on PSU-2 [7].
8. Free the following cables from their saddles (or loosen
tape) [8]:
– all cables located just beneath PSU-1 and PSU-2.
– all cables located just above PSU-1 and PSU-2.
9. Remove all screws that hold the metal subframe [9], and lift
the subframe, including boards and cables, from the
cabinet. See Figure 4-4
10. The LCD panel can now be lifted from the cabinet.
11. Before sending a defective LCD panel to the warehouse,
remove all cables, tapes and also the aluminium cooling
block. See Figure 4-5
placed on the new panel.
Refer also to Wiring Diagram 40" (Edge LIT)
placing instructions.
Figure 4-4 LCD Panel removal (2/3): Subframe with panels and cables
18670_101_090911.eps
090911
Figure 4-5 LCD Panel removal (3/3): Bare LCD panel after removal subframe
4.4Set 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 also Figure 4-1
•Pay special attention not to damage the EMC foams in the
set. Ensure that EMC foams are mounted correctly.
.
18670_102_090911.eps
090911
2009-Dec-18
EN 14Q548.1E LB5.
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 Step by step Start-up
5.4 Service Tools
5.5 Error Codes
5.6 The Blinking LED Procedure
5.7 Protections
5.8 Fault Finding and Repair Tips
5.9 Software Upgrading
5.1Test Points
As most signals are digital, it will be difficult to measure
waveforms with a standard oscilloscope. However, several key
ICs are capable of generating test patterns, which can be
controlled via ComPair. In this way it is possible to determine
which part is defective.
Perform measurements under the following conditions:
•Service Default Mode.
•Video: Colour bar signal.
•Audio: 3 kHz left, 1 kHz right.
5.2Service Modes
Service Default mode (SDM) and Service Alignment Mode
(SAM) offers several features for the service technician, while
the Customer Service Mode (CSM) is used for communication
between the call centre and the customer.
•All service-unfriendly modes (if present) are disabled, like:
– (Sleep) timer.
– Child/parental lock.
– Picture mute (blue mute or black mute).
– Automatic volume levelling (AVL).
– Skip/blank of non-favourite pre-sets.
How to Activate SDM
For this chassis there are two kinds of SDM: an analog SDM
and a digital SDM. Tuning will happen according to Table 5-1
•AnalogSDM: use the standard RC-transmitter and key in
the code “062596”, directly followed by the “MENU” (or
HOME) button.
Note: It is possible that, together with the SDM, the main
menu will appear. To switch it “off”, push the “MENU” (or
HOME) button again.
•DigitalSDM: use the standard RC-transmitter and key in
the code “062593”, directly followed by the “MENU” (or
HOME) button.
Note: It is possible that, together with the SDM, the main
menu will appear. To switch it “off”, push the “MENU” (or
HOME) button again.
•AnalogSDM can also be activated by, on the SSB,
shorting for a moment the solder pads SDM [1] (see
Figure 5-1
).
1
SDM1SDM
.
This chassis also offers the option of using ComPair, a
hardware interface between a computer and the TV chassis. It
offers the abilities of structured troubleshooting, error code
reading, and software version read-out for all chassis.
(see also section 5.4.1 ComPair
Note: For the new model range, a new remote control (RC) is
used with some renamed buttons. This has an impact on the
activation of the Service modes. For instance the old “MENU”
button is now called “HOME” (or is indicated by a “house” icon).
5.2.1 Service Default Mode (SDM)
Purpose
•To create a pre-defined setting, to get the same
measurement results as given in this manual.
•To override SW protections detected by stand-by
processor and make the TV start up to the step just before
protection (a sort of automatic step by step start up). See
section 5.3 Step by step Start-up
•To start the blinking LED procedure where only layer 2
errors are displayed (see also section 5.5 Error Codes
Specifications
Table 5-1 SDM default settings
RegionFreq. (MHz)
Europe, AP(PAL/Multi)475.25PAL B/G
Europe, AP DVB-T546.00 PID
).
.
Video: 0B 06 PID
PCR: 0B 06 PID
Audio: 0B 07
Default
system
DVB-T
18440_200_090225.eps
Figure 5-1 Service mode pads
After activating this mode, “SDM” will appear in the upper right
corner of the screen (when a picture is available).
How to Navigate
When the “MENU” (or HOME) button is pressed on the RC
transmitter, the set will toggle between the SDM and the normal
).
user menu (with the SDM mode still active in the background).
How to Exit SDM
Use one of the following methods:
•Switch the set to STAND-BY via the RC-transmitter.
•Via a standard customer RC-transmitter: key in “00”sequence.
091118
•All picture settings at 50% (brightness, colour, contrast).
•All sound settings at 50%, except volume at 25%.
2009-Dec-18
Service Modes, Error Codes, and Fault Finding
EN 15Q548.1E LB5.
5.2.2 Service Alignment Mode (SAM)
Purpose
•To perform (software) alignments.
•To change option settings.
•To easily identify the used software version.
•To view operation hours.
•To display (or clear) the error code buffer.
How to Activate SAM
Via a standard RC transmitter: key in the code “062596”
directly followed by the “INFO” or “I+” button. After activating
SAM with this method a service warning will appear on the
screen, continue by pressing the red button on the RC.
Contents of SAM (see also Table 6-5
):
•Hardware Information
– A. SW version. Displays the software version of the
main software (example: Q5481-0.26.2.0=
AAAaB_X.Y.W.Z).
•AAAA= the chassis name, where “a” indicates the
chip version: e.g. TV543/32= Q543, TV543/82=
Q548, Q543/92= Q549.
•B= the SW branch version. This is a sequential
number (this is no longer the region indication, as
the software is now multi-region).
•X.Y.W.Z= the software version, where X is the
main version number (different numbers are not
compatible with one another) and Y.W.Z is the sub
version number (a higher number is always
compatible with a lower number).
– B. SBY PROC version. Displays the software version
of the stand-by processor.
– C. Production Code. Displays the production code of
the TV, this is the serial number as printed on the back
of the TV set. Note that if an NVM is replaced or is
initialized after corruption, this production code has to
be re-written to NVM. ComPair will foresee in a
possibility to do this.
•Operation Hours. Displays the accumulated total of
operation hours (not the stand-by hours). Every time the
TV is switched “on/off”, 0.5 hours is added to this number.
•Errors (followed by maximum 10 errors). The most recent
error is displayed at the upper left (for an error explanation
see section 5.5 Error Codes
).
•Reset Error Buffer. When “cursor right” (or the “OK”
button) is pressed and then the “OK” button is pressed, the
error buffer is reset.
•Alignments. This will activate the “ALIGNMENTS” submenu. See chapter 6. Alignments.
•Dealer Options. Extra features for the dealers. See Table
6-5.
•Options. Extra features for Service. For more information
regarding option codes, see chapter 6. Alignments.
Note that if the option code numbers are changed, these
have to be confirmed with pressing the “OK” button before
the options are stored. Otherwise changes will be lost.
•Initialize NVM. The moment the processor recognizes a
corrupted NVM, the “initialize NVM” line will be highlighted.
Now, two things can be done (dependent of the service
instructions at that moment):
– Save the content of the NVM via ComPair for
development analysis, before initializing. This will give
the Service department an extra possibility for
diagnosis (e.g. when Development asks for this).
– Initialize the NVM.
•Note: When the NVM is corrupted, or replaced, there is a
high possibility that no picture appears because the display
code is not correct. So, before initializing the NVM via the
SAM, a picture is necessary and therefore the correct
display option has to be entered.
Refer to chapter 6. Alignments for details. To adapt this
option, it’s advised to use ComPair (the correct HEX values
for the options can be found in chapter 8 “Alignments”) or
a method via a standard RC (described below).
Changing the display option via a standard RC: Key in the
code “062598” directly followed by the “MENU” (or HOME)
button and “XXX” (where XXX is the 3 digit decimal display
code as mentioned in Table 6-3
. Make sure to key in all three
digits, also the leading zero’s. If the above action is successful,
the front LED will go out as an indication that the RC sequence
was correct. After the display option is changed in the NVM, the
TV will go to the Stand-by mode. If the NVM was corrupted or
empty before this action, it will be initialized first (loaded with
default values). This initializing can take up to 20 seconds.
Display Option
Code
39mm
040
PHILIPS
MODEL:
32PF9968/10
27mm
PROD.SERIAL NO:
AG 1A0620 000001
(CTN Sticker)
10000_038_090121.eps
090819
Figure 5-2 Location of Display Option Code sticker
•Store - go right. All options and alignments are stored
when pressing “cursor right” (or the “OK” button) and then
the “OK”-button.
•SW Maintenance.
– SW Events. Not useful for Service purposes. In case
of specific software problems, the development
department can ask for this information.
– HW Events. Not useful for Service purposes. In case
of specific software problems, the development
department can ask for this information.
•Operation hours display. Displays the accumulated total
of display operation hours. So, this one keeps up the
lifetime of the display itself, mainly to compensate the
degeneration behaviour.
•Test settings. For development purposes only.
•Development file versions. Not useful for Service
purposes, this information is only used by the development
department.
•Upload to USB. To upload several settings from the TV to
an USB stick, which is connected to the SSB. The items are
“Channel list”, “Personal settings”, “Option codes”,
“Display-related alignments” and “History list”. First a
directory “repair\” has to be created in the root of the
USB stick. To upload the settings select each item
separately, press “cursor right” (or the “OK” button),
confirm with “OK” and wait until “Done” appears. In case
the download to the USB stick was not successful “Failure”
will appear. In this case, check if the USB stick is
connected properly and if the directory “repair” is present in
the root of the USB stick. Now the settings are stored onto
the USB stick and can be used to download onto another
TV or other SSB. Uploading is of course only possible if the
software is running and if a picture is available. This
method is created to be able to save the customer’s TV
settings and to store them into another SSB.
•Download from USB. To download several settings from
the USB stick to the TV. Same way of working as with
uploading. To make sure that the download of the channel
list from USB to the TV is executed properly, it is necessary
to restart the TV and tune to a valid preset if necessary.
Note: The “History list item” can not be downloaded from
USB to the TV. This is a “read-only” item. In case of
specific problems, the development department can ask
for this information.
2009-Dec-18
EN 16Q548.1E LB5.
Service Modes, Error Codes, and Fault Finding
How to Navigate
•In SAM, the menu items can be selected with the
“CURSOR UP/DOWN” key (or the scroll wheel) on the RCtransmitter. The selected item will be highlighted. When not
all menu items fit on the screen, move the “CURSOR UP/
DOWN” key to display the next/previous menu items.
•With the “CURSOR LEFT/RIGHT” keys (or the scroll
wheel), it is possible to:
– (De) activate the selected menu item.
– (De) activate the selected sub menu.
•With the “OK” key, it is possible to activate the selected
action.
How to Exit SAM
Use one of the following methods:
•Switch the set to STAND-BY via the RC-transmitter.
•Via a standard RC-transmitter, key in “00” sequence, or
select the “BACK” key.
5.2.3 Customer Service Mode (CSM)
Purpose
When a customer is having problems with his TV-set, he can
call his dealer or the Customer Helpdesk. The service
technician can then ask the customer to activate the CSM, in
order to identify the status of the set. Now, the service
technician can judge the severity of the complaint. In many
cases, he can advise the customer how to solve the problem,
or he can decide if it is necessary to visit the customer.
The CSM is a read only mode; therefore, modifications in this
mode are not possible.
When CSM is activated, the layer 1 error is displayed via
blinking LED. Only the latest error is displayed. (see also
section 5.5 Error Codes
When CSM is activated and there is a USB stick connected to
the TV, the software will dump the complete CSM content to the
USB stick. The file (Csm.txt) will be saved in the root of the USB
stick. This information can be handy if no information is
displayed.
When in this chassis CSM is activated, a test pattern will be
displayed during 5 s.: 1 s. blue, 1 s. green, and 1 s. red, then
again 1 s. blue and 1 s. green. This test pattern is generated by
the PNX5120.
So if this test pattern is shown, it could be determined that the
back end video chain (PNX5120, LVDS, and display) of the
SSB is working.
How to Activate CSM
Key in the code “123654” via the standard RC transmitter.
Note: Activation of the CSM is only possible if there is no (user)
menu on the screen!
How to Navigate
By means of the “CURSOR-DOWN/UP” knob (or the scroll
wheel) on the RC-transmitter, can be navigated through the
menus.
Contents of CSM
The contents are displayed on three pages: General, Software
versions, and Quality items. However, these group names itself
are not shown anywhere in the CSM menu.
General
•Set Type. This information is very helpful for a helpdesk/
workshop as reference for further diagnosis. In this way, it
is not necessary for the customer to look at the rear of the
TV-set. Note that if an NVM is replaced or is initialized after
corruption, this set type has to be re-written to NVM.
ComPair will foresee in a possibility to do this.
).
•Production Code. Displays the production code (the serial
number) of the TV. Note that if an NVM is replaced or is
initialized after corruption, this production code has to be
re-written to NVM. ComPair will foresee a in possibility to
do this.
•Installed date. Indicates the date of the first installation of
the TV. This date is acquired via time extraction.
•Options 1. Gives the option codes of option group 1 as set
in SAM (Service Alignment Mode).
•Options 2. Gives the option codes of option group 2 as set
in SAM (Service Alignment Mode).
•12NC SSB. Gives an identification of the SSB as stored in
NVM. Note that if an NVM is replaced or is initialized after
corruption, this identification number has to be re-written to
NVM. ComPair will foresee in a possibility to do this. This
identification number is the 12nc number of the SSB.
Remark: the content here can also be a part of the 12NC of
the SSB in combination with the serial number.
•12NC display. Shows the 12NC of the display
•12NC supply. Shows the 12NC of the supply.
•12NC “fan board”. Shows the 12NC of the “fan board”module.
•12NC “LED Dimming Panel”. Shows the 12NC of the
LED dimming Panel.
Software versions
•Current main SW. Displays the built-in main software
version. In case of field problems related to software,
software can be upgraded. As this software is consumer
upgradeable, it will also be published on the Internet.
Example: Q5481E_1.2.3.4.
•Standby SW. Displays the built-in stand-by processor
software version. Upgrading this software will be possible
via ComPair or via USB (see section Software Upgrading
Example: STDBY_1.2.3.4.
•Ambilight SW. Displays the MOP ambient light SW.
•LED dimming SW. Displays the LED dimming EPLD SW
(for sets with LED backlight).
•Local contrast SW. Displays the MOP local contrast SW
version.
Quality items
•Signal quality. Poor/average/good
•Child lock. Not active/active. This is a combined item for
locks. If any lock (Preset lock, child lock, lock after or
parental lock) is active, the item shall show “active”.
•HDMI HDCP key. Indicates of the HDMI keys (or HDCP
keys) are valid or not. In case these keys are not valid and
the consumer wants to make use of the HDMI functionality,
the SSB has to be replaced.
•Ethernet MAC address. Displays the MAC address
present in the SSB.
•Wireless MAC address. Displays the wireless MAC
address to support the Wi-Fi functionality.
•BDS key. Indicates if the “BDS level 1” key is valid or not.
•CI slot present. If the common interface module is
detected the result will be “YES”, else “NO”.
•HDMI input format. The detected input format of the
HDMI.
•HDMI audio input stream. The HDMI audio input stream
is displayed: present / not present.
•HDMI video input stream. The HDMI video input stream
is displayed: present / not present.
How to Exit CSM
Press “MENU” (or HOME)/ ”Back” key on the RC-transmitter.
).
2009-Dec-18
Service Modes, Error Codes, and Fault Finding
EN 17Q548.1E LB5.
5.3Step by step Start-up
When the TV is in a protection state due to an error detected by
stand-by software (error blinking is displayed) and SDM is
activated via short cutting the pins on the SSB, the TV starts up
until it reaches the situation just before protection. So, this is a
kind of automatic step by step start-up. In combination with the
start-up diagrams below, it is shown which supplies are present
at a certain moment. Important to know is, that if e.g. the 3V3
detection fails and thus layer 2 error = 18 is blinking while the
TV is restarted via SDM, the Stand-by Processor will enable
the 3V3, but the TV set will not go to protection now. The TV
will stay in this situation until it is reset (Mains/AC Power supply
interrupted).
Caution: in case the start-up in this mode with a faulty FET
7101-1 is done, all ICs supplied by the +3V3 could be
destroyed, due to over voltage (12V on 3V3-line). It is
recommended to measure first the FET 7101-1 or others FETs
on short-circuit before activating SDM via the service pads.
The abbreviations “SP” and “MP” in the figures stand for:
•SP: protection or error detected by the Stand-by
Processor.
•MP: protection or error detected by the MIPS Main Processor.
St by
Hibernate
Mains
off
- WakeUp requested
- Acquisition needed
- Tact switch pushed
- stby requested and
no data Acquisition
required
Tact switch
pushed
- Tact switch pushed
- last status is hibernate
after mains ON
Mains
on
Semi
St by
GoToProtection
WakeUp
requested
-St by requested
- tact SW pushed
WakeUp
requested
(SDM)
Protection
Active
GoToProtection
Figure 5-3 Transition diagram
18440_215_090227.eps
091118
2009-Dec-18
EN 18Q548.1E LB5.
Detect2 should be polled on the standard 40ms
interval and startup should becontinuedwhen
detect2 becomes high.
This enables the +3V3and+5V converter. Asa
result, also+5V-tuner, +2V5, +1V8-PNX8541 and
+1V8-PNX5100 (if present) become available.
Delayof50ms needed becauseofthelatency of
the detect-1 circuit. This delayisalsoneededfor
the PNX5100. The reset of the PNX5100 should
only be released 10msafter powering the IC.
Service Modes, Error Codes, and Fault Finding
Off
Mains isapplied
Standby Supply starts running.
All standby supply voltagesbecome available.
st-byµPresets
InitialiseI/Opins of the st-byµP:
- Switch reset-AVC LOW (reset state)
- Switch WP-NandFlash LOW (protected)
- Switch reset-system LOW (reset state)
- Switch reset-5100 LOW (reset state)
- Switch reset-Ethernet LOW (reset state)
-keepreset-NVM high, Audio-reset and Audio-Mute-Up HIGH
start keyboard scanning, RC detection. Wake upreasonsare
Switch ON Platform and display supply by switching
isswitched on, followed by the +1V2 DCDC converter
Delay1.5secondbefore checking detect2 line
No
off.
Reset detect2_delay_flag
LOW the Standby line.
+12V, +24Vs,ALand Bolt-on power
if the detect2_delay_flagisset
Detect2 high received
within 2 seconds?
Yes
Wait fixed time of 15ms
Detect2 high?
Yes
Reset detect2_delay_flag
Enable the DCDC converter for +3V3and
+5V. (ENABLE-3V3)
Wait 50ms
No
Enter protection
Stand byor
Protec tio n
If the protection state was left by short circuiting the
SDM pins, detection of a protection condition during
startup will stall the startup. Protection conditions in a
playing set will be ignored. The protection mode will
not be entered.
- Switch Audio-Reset high.
It is low in the standbymodeifthestandby
mode lasted longer than10s.
Carefull we don’t hit this error
directly if the delayflagisset.
Power-OK error:
Layer1: 3
Layer2: 16
If the supply is hicking, the firstdetect2could
bepositive(12V still present), followed by
negative Supply-fault (already low). Adding a
fixed delay bringsusbehindthis delaygap.
Confirmation received from NXP that there does not need to
be a delay between the rise of the +1V2 and the +3V3.Only
requirement is to have the +1V2 before or atthesame time
as the +3V3.150ms delayisdeleted.
Set detect2_delay_flag
Detect-1 I/O line
High?
Yes
Yes
Enable the supply detection algorithm
Set I²C slave address
of StandbyµPto(A0h)
Switch LOW the RESET-NVM line to allow access to NVM. (Add a
2ms delay before trying to address the NVM to allow correct NVM
No
initialization, this is no issueinthissetup,the delayisautomatically
Only usefull in case of PNX5100 present. To avoid
diversity in standbyµP,thereset-PNX5100will still beswitched bythestandbyµP.
This 10ms delayisstill present to give some relaxation
to the supplies. (The PCI arbiter on the PNX5100 is
never used and is not the reason anymore)
An EJTAG probe (e.g. WindPower ICE probe) can be
connected for Linux Kernel debugging purposes.
Disable 3V3, switch standby
line high and wait 4 seconds
Thesechecks prevent the set from going in tostandbyonthefalse error condition where the
Becauseofthis reappearance, the 12V check
is OK which would cause protection. If we wait
No
Enter protection
This will allow access to NVM and
NAND FLASH and cannotbedone
earlier becausetheFLASH needs to
be in Write Protect as long as the
suppliesare not available.
first 3V3 is negative becauseofahickup,
although the 12V was abouttoreappear.
50ms,the3V3should be back as well.
2009-Dec-18
To: 18440_216b_090227.eps
To: 18440_216b_090227.eps
Figure 5-4 “Off/Stand-by” to “Semi Stand-by” flowchart (part 1)
18440_216a_090227.eps
091118
Service Modes, Error Codes, and Fault Finding
EN 19Q548.1E LB5.
From : 18440_216a_090227.eps
3-th try?
Yes
Blink Code as
error code
Enter pro tection
Reset-system is connected to the
Micronas MultiStandard decoder.
This cannot be done through the bootscript,
the I/O is on the standbyµP
Timing need to be updated if
more mature info isavailable.
No
Code =
Layer1: 2
Layer2: 15
Switch AVC PNX8543
in reset (active low)
Wait 10ms
Switch the NVM reset
line HIGH.
Disable all supply related protectionsand
switch off the +3V3 +5V DC/DC converter.
Wait 5ms
switch off the remaining DC/DC
converters
Switch Standby I/O line high
and wait 4 seconds
No
Code =
Layer1: 2
Layer2: 53
From : 18440_216a_090227.eps
Reset-system isswitched HIGH bythe
AVC at the end of the bootscript
AVC releases Reset-Ethernet when the
end of the AVC boot-script is detected
Reset-Audio and Audio-Mute-Up are
switched byMIPS code later on in the
startupprocess
Bootscript ready
in 1250 ms?
Yes
Set I²C slave address
of Standby µP to (60h)
RPC start (comm. protocol)
FlashtoRam
image transfer succeeded
within 30s?
Yes
SW initialization
No
succeeded
within 20s?
Yes
Enable Alive check mechanism
MIPS reads the wake upreason
from standbyµP.
5100 SW start
Wake upreason
coldboot & not semi-
standby?
yes
Startup screen cfg file
present?
yes
MIPSsends displayparametersand
No
No
Bitmapto5100
MIPS triggers 5100 to displaythe
startup screen
Startup screen visible
Reset-system isswitched HIGH bythe
AVC attheendofthebootscript
AVC releases Reset-Ethernet when the
end of the AVC boot-script is detected
Reset-Audio and Audio-Mute-Up are
switched by MIPS code later on in the
startupprocess
Timing needs to
be updated if moremature info is
available.
Timing needs to be
updated if moremature info is
available.
Wait until AVC starts to
communicate
Startup screen shall only bevisible when there isacoldboot
to an active state end situation. The startup screen shall not
bevisible when waking upforreboot reasons or waking upto
semi-standby conditions.
The first time after the option turn on of the startup screen or
when the set is virgin, the cfg file is not present and hence
the startup screen will not be shown.
To keep this flowchart readable, the exact displayturn on
description is not copied here. Please see the Semi-standby
to On description for the detailed display startup sequence.
During the complete displaytimeoftheStartup screen, the
preheat condition of 100% PWM is valid.
Initialize audio
Switch on the displayincaseofa LED backlight
display by sending the TurnOnDisplay(1) (I²C)
command to the PNX5100
Enable the PWM outputtowards the displayLVDS
cable in caseofa LED Backlight set.
(CTRL4-PNX5100)
Init ialize tuner and Multi Standard decoder
Initialize source selection
Initialize video processing IC's
-local contrast FPGA
- PNX5100 (if present)
Init ialize AutoTV
Initialize Ambilight with Lights off.
:
In caseofa LED backlight display, a LED DIM panel is present
which is fed by the Vdisplay. To power the LED DIM Panel, the
Vdisplay switch driven by the PNX5100 must beclosed. The
display startup sequence is taken care of bytheLEDDIM
panel. Secondly, this cmd will alsoenable the LVDS outputof
the 5100 towards the LED DIM panel.
In caseofa LED backlight display, the PWM-dimming signal
needs to beroutedtotheLVDS cable. This routing is not
allowed in non-LED sets (see alsodisplayconfiguration)
Semi-Standby
Figure 5-5 “Off/Stand-by” to “Semi Stand-by” flowchart (part 2)
18440_216b_090227.eps
090702
2009-Dec-18
EN 20Q548.1E LB5.
Service Modes, Error Codes, and Fault Finding
Constraints taken into account:
- Display may only be started when valid LVDS output clock can be delivered by the AVC.
- To have a reliable operation of the backlight, the backlight should be driven with a PWM duty cycle of 100%
during the first seconds. Only after this first one or two seconds, the PWM may be set to the required output level
(Note that the PWM output should be present before the backlight is switched on). To minimize the artefacts, the
picture should only be unblanked after these first seconds.
The assumption here is that a fast toggle (<2s) can
only happen during ON->SEMI ->ON. In these states,
the AVC is still active and can provide the 2s delay. A
transition ON->SEMI->STBY->SEMI->ON cannot be
made in less than 2s, because the standby state will
CPipe already generates a valid output
clock in the semi-standby state: display
startup can start immediately when leaving
Switch on the display power by
The exact timings to
switch on the
display (LVDS
delay, lamp delay)
are defined in the
display file.
The sum of the LVDS delay and the Lamp delay needs
to be used because the Lamp delay is specified with
the appearance of the LVDS on the display as
reference. This moment is not known by ceplf, only the
switch on of the LCD power is known. The delta
The complete algorithm description is
removed here.
Only the start of the algorithm
is mentioned here as reminder.
switching LCD-PWR-ON low
Wait x ms
Switch on LVDS output in 8543
between both is the LVDS delay.
be maintained for at least 4s.
the semi-standby state.
No
Start POK line detection
algorithm
return
Semi Standby
Wait until previous on-state is left more than 2
seconds ago. (to prevent LCD display problems)
Assert RGB video blanking
and audio mute
Display already on?
(splash screen)
No
PNX5100 present?
Yes
Switch on the display by sending the
TurnOnDisplay(1) (I²C) cmd to the PNX5100
Delay Lamp-on with the sum of the LVDS delay and
the Lamp delay indicated in the display file
Switch off the dimming backlight feature, set
the BOOST control to nominal and make sure
PWM output is set to 100%
Switch on LCD backlight (Lamp-ON)
Wait until valid and stable audio and video, corresponding to the
requested output is delivered by the AVC
the backlight has been switched on for at least the time which is
indicated in the display file as preheat time.
AND
Yes
Initialize audio and video
processing IC's and functions
according needed use case.
Switch Audio-Reset low and wait 5ms
Release audio mute and wait 100ms before any other audio
handling is done (e.g. volume change)
The higher level requirement is that audio and video
should be demuted without transient effects and that
the audio should be demuted maximum 1s before or
at the same time as the unblanking of the video.
The higher level requirement is that the
ambilight functionality may not be switched on
before the backlight is turned on in case the
set contains a CE IPB inverter supply.
Restore dimming backlight feature, PWM and BOOST output
Switch on the Ambilight functionality according the last status
Yes
and unblank the video.
settings.
Startup screen Option
and Installation setting
Photoscreen ON?
Display cfg file present
and up to date, according
correct display option?
Prepare Start screen Display config
file and copy to Flash
Active
Figure 5-6 “Semi Stand-by” to “Active” flowchart
Yes
No
No
18440_217_090227.eps
091112
2009-Dec-18
Service Modes, Error Codes, and Fault Finding
Active
Mute all sound outputs via softmute
Wait 100ms
Set main amplifier mute (I/O: audio-mute)
EN 21Q548.1E LB5.
Switch off LVDS output in 8543
Wait x ms
No
Force ext audio outputs to ground
(I/O: audio reset)
Switch off Ambilight
Wait until Ambilight has faded out: Output power
Observer on PNX5100 should be zero
Switch off POK line detection
Switch off LCD backlight
Mute all video outputs
Wait x ms (display file)
PNX5100 present?
Switch off the display by sending:
- TurnOnDisplay(0) (I²C) command to the PNX5100
- or sending OUTPUT-ENABLE(0) to the LED DIM
panel in case of a LED BL set.
and wait 5ms
algorithm
Yes
The higher level requirement is that the
backlight may not be switched off before the
ambilight functionality is turned off in case the
set contains a CE IPB inverter supply.
The exact timings to
switch off the
display (LVDS
delay, lamp delay)
are defined in the
display file.
Switch off the display power by
switching LCD-PWR-ON high
Semi Standby
Figure 5-7 “Active” to “Semi Stand-by” flowchart
18440_219_090227.eps
091112
2009-Dec-18
EN 22Q548.1E LB5.
Service Modes, Error Codes, and Fault Finding
Semi Stand by
If ambientlight functionality was used in semi-standby
(lampadaire mode), switch off ambient light
Delay transition until ramping down of ambient light is
finished. *)
Transfer Wake up reasons to the Stand by µP.
Switch Memories to self-refresh (this creates a more
stable condition when switching off the power).
Switch AVC system in reset state (reset-system and
Disable all supply related protections and switch off
the DC/DC converters (ENABLE-3V3)
Wait 5ms
*) If this is not performed and the set is
switched to standby when the switch off of
the ambilights is still ongoing, the lights will
switch off abruptly when the supply is cut.
Important remarks:
release reset audio 10 sec after entering
standby to save power
Also here, the standby state has to be
maintained for at least 4s before starting
another state transition.
2009-Dec-18
Switch OFF all supplies by switching HIGH the
Standby I/O line
Stand by
Figure 5-8 “Semi Stand-by” to “Stand-by” flowchart
18440_220_090227.eps
091112
Service Modes, Error Codes, and Fault Finding
EN 23Q548.1E LB5.
5.4Service Tools
5.4.1 ComPair
Introduction
ComPair (Computer Aided Repair) is a Service tool for Philips
Consumer Electronics products. and offers the following:
1. ComPair helps to quickly get an understanding on how to
repair the chassis in a short and effective way.
2. ComPair allows very detailed diagnostics and is therefore
capable of accurately indicating problem areas. No
knowledge on I
because ComPair takes care of this.
3. ComPair speeds up the repair time since it can
automatically communicate with the chassis (when the uP
is working) and all repair information is directly available.
4. ComPair features TV software up possibilities.
Specifications
ComPair consists of a Windows based fault finding program
and an interface box between PC and the (defective) product.
The ComPair II interface box is connected to the PC via an
USB cable. For the TV chassis, the ComPair interface box and
the TV communicate via a bi-directional cable via the service
connector(s).
The ComPair fault finding program is able to determine the
problem of the defective television, by a combination of
automatic diagnostics and an interactive question/answer
procedure.
How to Connect
This is described in the chassis fault finding database in
ComPair.
ComPair II
Figure 5-9 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.
•Software is available via the Philips Service web portal.
•ComPair serial interface cable for Q54x.x.
(using 3.5 mm Mini Jack connectors): 3138 188 75051.
Note: When having problems, please contact your local
support desk.
RC in
2
C or UART commands is necessary,
TO TV
TO
UART SERVICE
I2C SERVICE
CONNECTOR
Multi
function
2
C
I
PC
ComPair II Developed by Philips Brugge
Optional power
5V DC
TO
CONNECTOR
RS232 /UART
10000_036_090121.eps
Optional
Switch
PowerModeLink/
Activity
HDMI
2
C only
I
UART SERVICE
CONNECTOR
RC out
TO
091118
5.5Error Codes
5.5.1Introduction
The error code buffer contains all detected errors since the last
time the buffer was erased. The buffer is written from left to
right, new errors are logged at the left side, and all other errors
shift one position to the right.
When an error occurs, it is added to the list of errors, provided
the list is not full. When an error occurs and the error buffer is
full, then the new error is not added, and the error buffer stays
intact (history is maintained).
To prevent that an occasional error stays in the list forever, the
error is removed from the list after more than 50 hrs. of
operation.
When multiple errors occur (errors occurred within a short time
span), there is a high probability that there is some relation
between them.
New in this chassis is the way errors can be displayed:
There is a simple blinking LED procedure for board level repair
(home repair) so called LAYER 1 errors next to the existing
errors which are LAYER 2 errors (see Table 5-3
– LAYER 1 errors are one digit errors
– LAYER 2 errors are two digit errors.
•In protection mode.
– From consumer mode: LAYER 1.
– From SDM mode: LAYER 2.
•Fatal errors, if I
and SAM are not selectable.
– From consumer mode: LAYER 1.
– From SDM mode: LAYER 2.
Important remark:
For all errors detected by MIPS which are fatal =>
rebooting of the TV set (reboot starts after LAYER 1
error blinking), one should short the solder paths at
start-up from the power OFF state by mains
interruption and not via the power button to trigger the
SDM via the hardware pins.
•In CSM mode
– When entering CSM: error LAYER 1 will be displayed
by blinking LED. Only the latest error is shown.
•In SDM mode
– When SDM is entered via Remote Control code or the
hardware pins, LAYER 2 is displayed via blinking LED.
•In the ON state
– In “Display error mode”, set with the RC commands
“mute_06250X _OK” LAYER 2 errors are displayed via
blinking LED.
•Error display on screen.
– In CSM no error codes are displayed on screen.
– In SAM the complete error list is shown.
Basically there are three kinds of errors:
•Errors detected by the Stand-by software which lead to protection. These errors will always lead to protection and
an automatic start of the blinking LED LAYER 1 error.
(see section 5.6 The Blinking LED Procedure
•Errors detected by the Stand-by software which not lead to protection. In this case the front LED should blink
the involved error. See also section Extra Information
that it can take up several minutes before the TV starts
blinking the error (e.g. LAYER 1 error = 2, LAYER 2
error = 15 or 53).
•Errors detected by main software (MIPS). In this case
the error will be logged into the error buffer and can be read
out via ComPair, via blinking LED method LAYER 1-2
error, or in case picture is visible, via SAM.
2
C bus is blocked and the set re-boots, CSM
).
).
. Note
2009-Dec-18
EN 24Q548.1E LB5.
Service Modes, Error Codes, and Fault Finding
5.5.2 How to Read the Error Buffer
Use one of the following methods:
•On screen via the SAM (only when a picture is visible).
E.g.:
– 00 00 00 00 00: No errors detected
– 23 00 00 00 00: Error code 23 is the last and only
detected error.
– 37 23 00 00 00: Error code 23 was first detected and
error code 37 is the last detected error.
– Note that no protection errors can be logged in the
error buffer.
•Via the blinking LED procedure. See section 5.5.3 How to
Clear the Error Buffer.
•Via ComPair.
5.5.3 How to Clear the Error Buffer
Use one of the following methods:
•By activation of the “RESET ERROR BUFFER” command
in the SAM menu.
•With a normal RC, key in sequence “MUTE” followed by
“062599” and “OK”.
•If the content of the error buffer has not changed for 50+
hours, it resets automatically.
5.5.4 Error Buffer
In case of non-intermittent faults, clear the error buffer before
starting to repair (before clearing the buffer, write down the
content, as this history can give significant information). This to
ensure that old error codes are no longer present.
If possible, check the entire contents of the error buffer. In
some situations, an error code is only the result of another error
code and not the actual cause (e.g. a fault in the protection
detection circuitry can also lead to a protection).
There are several mechanisms of error detection:
•Via error bits in the status registers of ICs.
•Via polling on I/O pins going to the stand-by processor.
•Via sensing of analogue values on the stand-by processor
or the PNX8543.
•Via a “not acknowledge” of an I
2
C communication.
Take notice that some errors need several minutes before they
start blinking or before they will be logged. So in case of
problems wait 2 minutes from start-up onwards, and then
check if the front LED is blinking or if an error is logged.
Multi Standard demodulator (Micronas IF) 2 27 MIPSI
ARM (AL)8 28 MIPS
FPGA (Local contrast)2 29 MIPS
Tuner12 34 MIPSI
2
FAN I
C expander7 41 MIPSI2C2E EBPCA 9533FAN mod.
T× sensor7 42 MIPSI
FAN 17 43 MIPS
FAN 27 44 MIPS
MIPS does not boot (SW cause)2 53 St-by µP I
Display5 64 MIPS
FPGA LED dim 2D2 65 MIPS
FPGA LED dim 3D8 65 MIPSI
I2C3E EBSTM24C08SSB
2
C3E EBDRX3616K
DRX3626K
SSB
I2C3E EBNXP LPC2103 AL mod. or DC/DC
I2C3E EBAlteraSSB
2
C3E EBUV1783S
2
C2E EBLM 75T×sensor
HD1816
SSB
I2C2EEBFAN
I2C2EEBFAN
2
C1P BLPNX8543SSBTV is rebooting endlessly with white LED blinking.
I2C2E BL/EBAlteraDisplay
I2C3E EBXilinxSSB
2
C2E EBAlteraSSB
Special Remarks
TV is rebooting endlessly with red LED blinking “2”.
TV is rebooting endlessly with red LED blinking “2”
TV shut down with red LED blinking “3”.
TV still in normal operation mode, but without backlights.
Enter CSM Layer 1 red LED blinking “3”.
TV shut down with red LED blinking “2”.
TV is rebooting endlessly, with red LED blinking “2” (shown
every 20 second).
Activate CSM red LED blinking “2”.
TV is rebooting endlessly, with red LED blinking “2” (shown
every minute).
TV is in normal operation but without video displayed (RF).
TV is in normal operation but without AMBILIGHT “on”.
TV is in normal operation but without video displayed (RF).
2009-Dec-18
Service Modes, Error Codes, and Fault Finding
EN 25Q548.1E LB5.
Extra Information
•Rebooting. When a TV is constantly rebooting due to
internal problems, most of the time no errors will be logged
or blinked. This rebooting can be recognized via a ComPair
interface and Hyperterminal (for Hyperterminal settings,
see section 5.8.6 UART Logging
). It’s shown that the
loggings which are generated by the main software keep
continuing. In this case diagnose has to be done via
ComPair.
•Main NVM. When there is no I
2
C communication towards
the main NVM, LAYER 1 error = “2” will be displayed via
the blinking LED procedure. In SDM, LAYER 2 error can be
“19”. Check the logging for keywords like “I
•Error 13 (I
2
C bus 3 blocked). When this error occurs, the
2
C bus blocked”.
TV will constantly reboot due to the blocked bus. The best
way for further diagnosis here, is to use ComPair.
•Error 15 (PNX8543 doesn’t boot). Indicates that the main
processor was not able to read his bootscript. This error will
point to a hardware problem around the PNX8543
(supplies not OK, PNX 8541 completely dead, I
between PNX and Stand-by Processor broken, etc...).
When error 15 occurs it is also possible that I
blocked (NVM). I
2
C2 can be indicated in the schematics as
2
C link
2
C2 bus is
follows: SCL-UP-MIPS, SDA-UP-MIPS, SCL-2 or SDA-2.
Other root causes for this error can be due to hardware
problems with: NVM PNX5120, PNX5120 itself, or DDRs.
•Error 16 (12V). This voltage is made in the power supply
and results in protection (LAYER 1 error = “3”). When SDM
is activated we see blinking LED LAYER 2 error = “16”.
•Error 17 (POK). The display is switched “on” with the
signal “Lamp On”. If the inverter starts (or 24V display is
OK) the POK line becomes “high”. If the POK line is not
“high”, the set backlight will be switched “off” and “on” again
for 3 times (start-up). If the set POK line becomes “high”
after the retries, no error is logged; if the POK stays “low”,
error is logged: LAYER 1 error = “3”, LAYER 2 error = “17”.
No protection is required, the start-up goes on.
•Error 18 (1V2-3V3-5V too low). All these supplies are
generated by the DC/DC supply on the SSB. If one of these
supplies is too low, protection occurs and blinking LED
LAYER 1 error = “2” will be displayed automatically. In
SDM this gives LAYER 2 error = “18”.
•Error 21 (PNX5120). When there is no I
2
C communication
towards the PNX5120 after start-up (power “off” by
disconnection of the mains cord), LAYER 2 error will blink
continuously via the blinking LED procedure in SDM. (startup the TV with the solder paths short to activate SDM).
•Error 23 (HDMI). When there is no I
2
C communication
towards the HDMI multiplexer after start up, LAYER 2
error = “23” will be logged and displayed via the blinking
LED procedure if SDM is switched “on”.
•Error 25 (Boot-NVM PNX5120). When there is no I
2
C
communication towards the PNX5120 NVM after start-up,
TV is rebooting endlessly with blinking LAYER 1 error = 2
(shown every minute). When SDM is activated we see
blinking LED LAYER 2 error = “25”.
•Error 27 (Multi Standard demodulator). When there is no
2
I
C communication towards the Multi Standard
demodulator after start up, LAYER 2 error = “27” will be
logged and displayed via the blinking LED procedure when
SDM is switched “on”.
•Error 28 (FPGA ambilight). When there is no I
2
C
communication towards the FPGA ambilight after start up,
LAYER 2 error = “28” will be logged and displayed via the
blinking LED procedure if SDM is switched “on”. Note that
it can take up several minutes before the TV starts blinking
LAYER 1 error = “2” in CSM or in SDM, LAYER 2
error = “28”.
•Error 29 (FPGA local contrast). Incorrect or false error
logging, LAYER 2 = “29” can be displayed in the error
buffer due to a software bug in the first SW release
patches. To solve this problem, upgrade the main software
with the latest release version.
•Error 34 (Tuner). When there is no I
2
C communication
towards the tuner after start up, LAYER 2 error = “34” will
be logged and displayed via the blinking LED procedure
when SDM is switched on.
•Error 53. This error will indicate that the PNX8543 has
read his bootscript (when this would have failed, error 15
would blink) but initialization was never completed because
of hardware problems (NAND flash,...) or software
initialization problems. Possible cause could be that there
is no valid software loaded (try to upgrade to the latest main
software version). Note that it can take up to 2 minutes
before the TV starts blinking LAYER 1 error = “2” or in
SDM, LAYER 2 error = “53”.
5.6The Blinking LED Procedure
5.6.1Introduction
The blinking LED procedure can be split up into two situations:
•Blinking LED procedure LAYER 1 error. In this case the
error is automatically blinked when the TV is put in CSM.
This will be only one digit error, namely the one that is
referring to the defective board (see table 5-3 Error code
overview (multi chassis overview)) which causes the failure
of the TV. This approach will especially be used for home
repair and call centres. The aim here is to have service
diagnosis from a distance.
•Blinking LED procedure LAYER 2 error. Via this procedure,
the contents of the error buffer can be made visible via the
front LED. In this case the error contains 2 digits (see table
5-3 Error code overview (multi chassis overview)
be displayed when SDM (hardware pins) is activated. This
is especially useful for fault finding and gives more details
regarding the failure of the defective board.
Important remark:
For all errors detected by MIPS which are fatal (rebooting
of the TV set, with reboot starts after LAYER 1 error
blinking), one should short the SDM solder paths at startup from the power OFF state by mains interruption and not
via the power button, to trigger the SDM via the hardware
pins.
When one of the blinking LED procedures is activated, the front
LED will show (blink) the contents of the error-buffer. Error
codes greater then 10 are shown as follows:
1. “n” long blinks (where “n” = 1 to 9) indicating decimal digit
2. A pause of 1.5 s
3. “n” short blinks (where “n”= 1 to 9)
4. A pause of approximately 3 s,
5. When all the error codes are displayed, the sequence
finishes with a LED blink of 3 s
6. The sequence starts again.
Example: Error 12 8 6 0 0.
After activation of the SDM, the front LED will show:
1. One long blink of 750 ms (which is an indication of the
decimal digit) followed by a pause of 1.5 s
2. Two short blinks of 250 ms followed by a pause of 3 s
3. Eight short blinks followed by a pause of 3 s
4. Six short blinks followed by a pause of 3 s
5. One long blink of 3 s to finish the sequence
6. The sequence starts again.
5.6.2How to Activate
Use one of the following methods:
•Activate the CSM. The blinking front LED will show only
the latest layer 1 error, this works in “normal operation”
mode or automatically when the error/protection is
monitored by the stand-by processor. At the time of this
release, this layer 1 error blinking was not working as
expected.
and will
2009-Dec-18
EN 26Q548.1E LB5.
Service Modes, Error Codes, and Fault Finding
In case no picture is shown and there is no LED blinking,
read the logging to detect whether “error devices” are
mentioned. (see section 5.8.6 UART Logging
•Activate the SDM. The blinking front LED will show the
entire contents of the layer 2 error buffer, this works in
“normal operation” mode or when SDM (via hardware pins)
is activated when the tv set is in protection.
Important remark:
For all errors detected by MIPS which are fatal =>
rebooting of the TV set (reboot starts after LAYER 1 error
blinking), one should short the solder paths at start-up from
the power OFF state by mains interruption and not via the
power button to trigger the SDM via the hardware pins.
•Transmit the commands “MUTE” - “062500” - “OK” with a normal RC. The complete error buffer is shown.
Take notice that it takes some seconds before the blinking
LED starts.
•Transmit the commands “MUTE” - “06250x” - “OK” with a normal RC (where “x” is a number between 1
and 5). When x = 1 the last detected error is shown, x = 2
the second last error, etc.... Take notice that it takes some
seconds before the blinking LED starts.
5.7Protections
5.7.1 Software Protections
Most of the protections and errors use either the stand-by
microprocessor or the MIPS controller as detection device.
Since in these cases, checking of observers, polling of ADCs,
and filtering of input values are all heavily software based,
these protections are referred to as software protections.
There are several types of software related protections, solving
a variety of fault conditions:
•Protections related to supplies: check of the 12V, +5V,
+3V3 and 1V2.
•Protections related to breakdown of the safety check 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. As the
observers are only used during start-up, they are described in
the start-up flow in detail (see section 5.3 Step by step Startup).
5.7.2 Hardware Protections
The only real hardware protection in this chassis appears in
case of an audio problem e.g. DC voltage on the speakers. This
protection will only affect the Class D (7L10) and puts the
amplifier in a continuous burst mode (cyclus approximately 2
seconds).
Repair Tips
•There will be still picture available but no sound. While the
Class D amplifier tries to start-up again, the cone of the
loudspeakers will move slowly in one or the other direction
until the initial failure shuts the amplifier down, this cyclus
starts over and over again.
5.7.3Important remark regarding the blinking LED indication
).
As for the blinking LED indication, the blinking LED of layer 1
error displaying can be switched “off” by pushing the power
button on the keyboard.
This condition is not valid after the set was unpowered (via
mains interruption). The blinking LED starts again and can only
be switched “off” by unplugging the mains connection.
This can be explained by the fact that the MIPS can not load
the keyboard functionality from software during the start-up and
does not recognise the keyboard commands at this time.
5.8Fault Finding and Repair Tips
Read also section “5.5 Error Codes, 5.5.4 Error Buffer, Extra
Information”.
5.8.1Ambilight
Due to degeneration process of the AmbiLights, there can be a
difference in the colour and/or light output of the spare
ambilight module in comparison with the originals ones
contained in the TV set. Via ComPair, the light output can be
adjusted.
5.8.2 CSM
When CSM is activated and there is a USB stick connected to
the TV, the software will dump the complete CSM content to the
USB stick. The file (Csm.txt) will be saved in the root of the USB
stick. If this mechanism works it can be concluded that a large
part of the operating system is already working (MIPS, USB...)
5.8.3Exit “Factory Mode”
When an “F” is displayed in the screen’s right corner, this
means the set is in “Factory” mode, and it normally
happens after a new SSB is mounted. To exit this mode, push
the “VOLUME minus” button on the TV’s local keyboard for 10
seconds (this disables the continuous mode).
Then push the “SOURCE” button on the TV’s local keyboard
for 10 seconds until the “F” disappears from the screen.
5.8.4DC/DC Converter
Introduction
•The best way to find a failure in the DC-DC converters is to
check their starting-up sequence at “power-on via the
mains cord”, presuming that the stand-by microprocessor
is operational.
•If the input voltage of DC-DC converters is around 12.7 V
(measured on decoupling capacitors 2107 and 2123 and
the enable signals are “low” (active), then the output
voltages should have their normal values. The +12V and
+5VPOD supplies start-up first (enabled by PODMODE
signal from the stand-by microprocessor). There is a
supplementary condition for 12V to start-up: if the +5VPOD does not start up due to a local defect, then +12V will
not be available as well. The +5V-ON supply is enabled by
the ONMODE signal (coming also from the stand-by
microprocessor). The +1V2 supply starts up when the
+12V appears, then at least 100 ms later, the +3V3 will be
activated via the ENABLE-3V3 signal from the stand-by
microprocessor. If the +12V value is less than 10 V, the last
enumerated voltages will not show up due to the undervoltage detection circuit 7105-1 + 6101 and surrounding
components. Furthermore, if the +12V is less than 8 V,
then also the +1V2 will not be available. The +5V5-TUN
generator 7202 (present only for the analogue version of
China platforms) will start to operate as soon as the 12V
(PSU) is present.
2009-Dec-18
Service Modes, Error Codes, and Fault Finding
EN 27Q548.1E LB5.
•The consumption of controller IC 7103 is around 19 mA
(that means almost 200 mV drop voltage across resistor
3108).
•The current capability of DC-DC converters is quite high
(short-circuit current is 7 to 10 A).
•The DETECT1 signal (active “low”) is an internal protection
(error 18) of the DC-DC convertor and will occur if the
output voltage of any DC-DC convertor is out of limits (10%
of the normal value).
Fault Finding
•Symptom: +1V2 not present (even for a short while ~10
ms)
– Check 12 V availability (resistor 3108, MOS-FETs
7101 and 7102), value of +12 V, and surrounding
components)
– Check the voltage on pin 9 (1.5 V),
– Check for +1V2 output voltage short-circuit to GND that
can generate pulsed over-currents 7...10 A through coil
5103.
– Check the over-current detection circuit (2106 or 3131
interrupted).
•Symptom: +1V2 present for about 100ms, +3V3 not rising.
– Check the ENABLE-3V3 signal (active “low”),
– Check the voltage on pin 8 (1.5 V),
– Check the under-voltage detection circuit (the voltage
on collector of transistor 7105-1 should be less than
0.8 V),
– Check for output voltages short-circuits to GND (+3V3)
that can generate pulsed over currents 7...10 A
through coil 5101,
– Check the over-current detection circuit (2105 or 3127
interrupted).
•Symptom: +1V2 OK, +3V3 present for about 100 ms.
Possible cause: SUPPLY-FAULT line stays “low” even
though the +3V3 and +1V2 is available - the stand-by
microprocessor is detecting that and switching “off” all
supply voltages.
– Check the drop voltage across resistor 3108 (they
could be too high, meaning a defective controller IC or
MOS-FETs),
– Check if the boost voltage on pin 4 of controller IC 7103
is less than 14 V (should be 19 V),
– Check if +1V2 or +3V3 are higher than their normal
values - that can be due to defective DC feedback of
the respective DC-DC convertor (ex. 3152, 3144).
•Symptom: +1V2 and +3V3 show a high level of ripple
voltage (audible noise can come from the filtering coils
5101, 5103). Possible cause: instability of the frequency
and/or duty cycle of a DC-DC converter or stabiliser.
– Check the resistor 3164, capacitors 2102 and 2103,
input and output decoupling capacitors.
– Check AC feedback circuits (2120, 2129, 3141, 3153,
2110, 2114 and 3135).
•Symptom: +1V2, +3V3 ok, no +5V5-TUN (analogue sets
only). Possible cause: the “+5V5-TUN GENERATOR”
circuit (7202 and surroundings components) is defective:
check transistor 7202 (it has to have gate voltage pulses of
about 10 V amplitude and drain voltage pulses of about 35
V amplitude) and surrounding components. A high
consumption (more than 6 mA) from +5V5-TUN voltage
can cause also +5V5-TUN voltage to be too low or zero.
Note: when a pair of power MOSFETs (7101 or 7102)
becomes defective, the controller IC 7103 should be replaced
as well.
5.8.5Fan self test (only for sets with LED backlight)
In case fans are present, a softest can be done by pushing the
red coloured button on the remote control while the TV set is in
CSM. Exit CSM and check the status of the fans in the error
buffer by entering SAM (062596 + info button on the RC). In
case of failure (fully red screen) more detailed information is
available in the error buffer (error 41, 42, 43, 44).
5.8.6UART Logging
When something is wrong with the TV set (f.i.the set is
rebooting) checking the UART logging using hyperterminal can
be done to find more information. Hyperterminal is a standard
Windows application. It can be found via Programs,
Accessories, Communications, Hyperterminal. Connect a
“ComPair UART”-cable (3138 188 75051) from the Service
connector in the TV set, via the ComPair interface (this is compulsory, otherwise ICs are blown in the PC), to the
“COMx”-port of the PC. After start-up of Hyperterminal, fill in a
name (f.i. “logging”) in the “Connection Description” box, then
apply the following settings:
1. COMx
2. Bits per second = 115200
3. Data bits = 8
4. Parity = none
5. Stop bits = 1
6. Flow control = none
During the start-up of the TV set, the logging will be displayed.
This is also the case during rebooting of the TV set (the same
logging appears time after time). Also available in the logging
is the “Display Option Code” (useful when there is no picture),
look for item “DisplayRawNumber” in the beginning of the
logging.
Tip: When there is no picture available during reboot, it is
possible to check for “error devices” in the logging (LAYER 2
error). This can be very helpful to determine the failure cause
of the reboot. For protection state, there is no logging.
5.8.7Loudspeakers
Make sure that the volume is set to minimum during
disconnecting the speakers in the “on” state of the TV. The
audio amplifier can be damaged by disconnecting the speakers
during “on” state of the set! Sometimes the set can go into
protection, but that is not always the case.
5.8.8Tuner
Attention: In case the tuner is replaced, always check the tuner
options!
5.8.9Display option code
Attention: In case the SSB is replaced, always check the
display option code in SAM, even when picture is available.
Performance with the incorrect display option code can lead to
unwanted side-effects for certain conditions.
See also Table 6-3
5.8.10 Upgrade HDMI EDID NVM
To upgrade the HDMI EDID, see ComPair for further
instructions.
for the code.
2009-Dec-18
EN 28Q548.1E LB5.
5.8.11 Upgrade VGA EDID NVM
To upgrade the VGA EDID NVM, pin 7 of the EDID NVM [2] has
to be short circuited to ground. See ComPair for further
instructions.
Service Modes, Error Codes, and Fault Finding
SDM2EDID
Figure 5-10 VGA EDID NVM
1
18440_201_090225.eps
090306
2009-Dec-18
Service Modes, Error Codes, and Fault Finding
EN 29Q548.1E LB5.
5.8.12 SSB Replacement
Follow the instructions in the flowchart in case a SSB has to be
replaced. See Figure 5-11
. In the unlikely event that the set
starts up in Factory mode, first refer to Figure 5-12
Before starting:
- prepare a USB memory stick with the latest software
- download the latest Main Software (Fus) from www.p4c.philips.com
- unzip this file
- create a folder ”upgrades” in the root of a USB stick (size > 50 MB) and
save the autorun.upg file in this "upgrades" folder.
Note: it is possible to rename this file, e.g."Q54x_SW_version.upg"; this in
case there are more than one "autorun.upg" files on the USB stick.
Due to a possible wrong display option code in the received Service
SSB (NVM), it’s possible that no picture is displayed. Due to this
the download application will not be shown either. This tree enables you
to load the main software step-by-step via the UART logging on the PC
(this for visual feedback).
1) Start up the TV set, equiped with the Service
and enable the UART logging on the PC.
2) The TV set will start-up automatically in the
download application if main TV software is not loaded.
3) Plug the prepared USB stick into the TV set. Follow the
instructions in the UART log file, press“Right” cursor key to enter
the list. Navigate to the “autorun.upg” file in the UART logging
printout via the cursor keys on the remote control. When the
correct file isselected, press
4) Press "Down" cursor and “Ok” to start flashing the main
TV software. Printouts like: “L: 1-100%, V: 1-100% and
P: 1-100%”should be visible now in the UART logging.
5) Wait until the message “Operation successful !” is logged in
the UART log and remove all inserted media. Restart the TV set.
SSB,
“Ok”.
Figure 5-11
5.8.3 Exit “Factory Mode”
Service SSB delivered without main software loaded.
and then to
Ins truction note SSB replacement Q543.x - Q548.x - Q549.x
START
Set is stil l operating?
Yes
C onn ect the U SB sti ck to the set,
go to SAM and save the current TV settings via“Upload to USB”
1.
Discon nect the WiF i module f rom the PC I conn ector (only for Q549.x SSB)
2. Replace the SSB by a Service SSB.
3. Place the WiFi module in the PCI connector.
4. Mount the Service SSB in the set.
Start-up the set
No pic ture displayed
1) Plug the USB stick into the TV set a
the “autorun .upg” file in the displayed browser.
2) Now the main software will be loaded automatically,
3) Wait until the message “Operation successful !” is displayed
and remove all inserted media. Restar t the TV set.
Set behaviour?
Pic ture displayed
Set is starting up with software
upgrade menu appearing on screen
supported by a progress bar.
Pic ture displayed
Set is starting up without software
upgrade menu appearing on screen
nd select
. Additional information you can find in sections
, 6.5 Reset of Repaired SSB and 6.6
No
No
Connect PC via the ComPair interface to Service connector.
Start TV in Jett mode (DVD I + (OSD))
Open ComPair browser Q54x
Program set type number, serial number, and di
Attention point for Net TV: If the set type and serial number are not
filled in, the Net TV functionality will not work. It will not be possible
to connect to the internet.
Program E - DFU if needed.
splay 12 NC
Set the correct “Display code” via “06259
“xxx” is the 3 digit display panel code (see sticker on the side
After entering the “Display Option” code, the set is going to
Check and perform alignments in SAM according to the
Service Manual. Option codes, colour temperature, etc.
or bottom of the cabinet)
(= validation of code)
Restart the set
Saved settings
on USB stick?
Go to SAM and reload settings
via“Download from USB” function.
If not already done:
Check latest software on Service website.
Update main and Stand-by software via USB.
Final check of all menus
Special attention for HDMI Keysand Mac address.
Check if E - D F U is present.
8 -HOME- xxx” where
Standby
Yes
in CSM.
End
In case of settings reloaded from USB, the set type,
serial number, display 12 NC, are automatically stored
when entering display options.
- Check if correct “display option” code is programmed.
- Verify “option codes” according to sticker inside the set.settings for “white drive” > see Service Manual.
- Default
Q54x.E SSB Board swap – VDS
Updated 19-08-2009
H_16771_007a.eps
091119
Figure 5-11 SSB replacement flowchart
2009-Dec-18
EN 30Q548.1E LB5.
Service Modes, Error Codes, and Fault Finding
Set is starting up in F actory m ode
Set is starting up in Factory m ode?
Noisy picture with bands/lines is visible and the
RED LED is continuous on.
- Press the “volume minus”button on the TVs local keyboard for 10
- Press the “SOURCE”button for 10 secondsuntil the “F” disappears
from the screen or the noise on the screen is replaced by “blue mute”
The noise on the screen is replaced
with the blu
e mute or the “F” is disappeared!
Unplug the mainscord to verify the correct
disabling of the factory-mode.
seconds
An “F” is displayed and the HDMI 1
input is displayed.
2009-Dec-18
Program display option code
via“062598 MENU”, followed by
the 3 digits code of the display
(this code can be found
on asticker inside the set).
After entering “display option” code, the set is
going in stand-by mode (= validation of code)
Resta rt the set
Figure 5-12 SSB replacement flowchart - set starting up in Factory Mode
H_16771_007b.eps
091119
Service Modes, Error Codes, and Fault Finding
EN 31Q548.1E LB5.
5.9Software Upgrading
5.9.1 Introduction
The set software and security keys are stored in a NANDFlash, which is connected to the PNX8543 via the PCI bus.
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.
Important: When the NAND-Flash must be replaced, a new
SSB must be ordered, due to the presence of the security keys!
(copy protection keys, MAC address, ...). It is not possible
anymore to replace the NAND-Flash with another one from a
scrap-board.
Perform the following actions after SSB replacement:
1. Set the correct option codes (see sticker inside the TV).
2. Update the TV software (see the DFU for instructions).
3. Perform the alignments as described in section Reset of
Repaired SSB.
4. Check in CSM if the HDMI keys are valid.
For the correct order number of a new SSB, always refer to the
Spare Parts list, available on the Philips Spare Part web portal.
5.9.2 Main Software Upgrade
•The “UpgradeAll.upg” file is only used in the factory.
•The “FlashUtils.upg” file is only used by Service centres
that are allowed to do component level repair on the SSB.
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 of the one-zip file: e.g. FUS _Q5481E_
1.25.5.0_commercial.zip). 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 the USB stick.
How to upgrade:
1. Copy “AUTORUN.UPG” to the root of the USB stick.
2. Insert USB stick in the set while the set is in ON MODE.
The set will restart and the upgrading will start
automatically. As soon as the programming is finished, a
message is shown to remove the USB stick and restart the
set.
Manual Software Upgrade
In case that the software upgrade application does not start
automatically, it can also be started manually.
How to start the software upgrade application manually:
1. Disconnect the TV from the Mains/AC Power.
2. Press the “OK” button on a Philips TV remote control or a
Philips DVD RC-6 remote control (it is also possible to use
a TV remote in “DVD” mode). Keep the “OK” button
pressed while reconnecting the TV to the Mains/AC Power.
3. The software upgrade application will start.
Attention!
In case the download application has been started manually,
the “autorun.upg” will maybe not be recognized.
What to do in this case:
1. Create a directory “UPGRADES” on the USB stick.
2. Rename the “autorun.upg” to something else, e.g. to
“software.upg”. Do not use long or complicated names,
keep it simple. Make sure that “AUTORUN.UPG” is no
longer present in the root of the USB stick.
3. Copy the renamed “upg” file into this directory.
4. Insert USB stick into the TV.
5. The renamed “upg” file will be visible and selectable in the
upgrade application.
Back-up Software Upgrade Application
If the default software upgrade application does not start (could
be due to a corrupted boot 2 sector) via the above described
method, try activating the “back-up software upgrade
application”.
How to start the “back-up software upgrade application”
manually:
1. Disconnect the TV from the Mains/AC Power.
2. Press the “INFO”-button on a Philips remote control or
“CURSOR DOWN” button on a Philips DVD RC-6 remote
control (it is also possible to use a TV remote in “DVD”
mode). Keep the “INFO”-button (or “cursor down” button)
pressed while reconnecting the TV to the Mains/AC Power.
3. The software upgrade application will start.
5.9.3Stand-by Software Upgrade via USB
In this chassis it is possible to upgrade the Stand-by software
via a USB stick. The method is similar to upgrading the main
software via USB.
Use the following steps:
1. Create a directory “UPGRADES” on the USB stick.
2. Copy the Stand-by software (part of the one-zip file, e.g.
StandbySW_CFT69_84.0.0.0.upg) into this directory.
3. Insert the USB stick into the TV.
4. Start the download application manually (see
section Manual Software Upgrade
.
5. Select the appropriate file and press the “red” button to
upgrade.
5.9.4Content and Usage of the One-Zip Software File
Below the content of the One-Zip file is explained, and
instructions on how and when to use it.
File nameDescription
EDID_Q5481_x.x.x.x.zipContains the EDID content of the different
EJTAGDownload_Q5481_x.x.x.x.zip Only used by service centra which are
FUS_Q5481_vx.x.x.x.zipContains the “autorun.upg” which is
VGA_HD_EDID_TV543_x.x.x.x.zip Contains the EDID content of the different
processNVM_Q5481_x.x.x.x.zipDefault NVM content. Must be programmed
Software_history_vx.x.x.x.pdfContains a history overview of the software.
StandbySW_CFT73_x.x.x.x.zipContains the Stand-by software in “upg”
VGA_FHD_EDID_TV543_x.x.x.x.zip Contains the EDID content of the different
VGA NVM. See ComPair for further
instructions.
allowed to do Component Level Repair.
needed to upgrade the TV main software
and the software download application.
(HD) VGA NVM. See ComPair for further
instructions.
via ComPair.
and “hex” format.
- The “StandbySW_xxxxx_prod.upg” file
can be used to upgrade the Stand-by
software via USB.
- The “StandbySW_xxxxx.hex” file can be
used to upgrade the Stand-by software vi a
ComPair.
- The files “StandbySW_xxxxx_exhex.hex”
and “StandbySW_xxxxx_dev.upg” may not
be used by Service technicians (only for
development purposes).
(FHD) VGA NVM. See ComPair for further
instructions.
2009-Dec-18
EN 32Q548.1E LB6.
6.Alignments
Alignments
Index of this chapter:
6.1 General Alignment Conditions
6.2 Hardware Alignments
6.3 Software Alignments
6.4 Option Settings
6.5 Reset of Repaired SSB
6.6 Service SSB delivered without main software loaded
6.7 Total Overview SAM modes
6.1General Alignment Conditions
Perform all electrical adjustments under the following
conditions:
•Power supply voltage (depends on region):
– AP-NTSC: 120 VAC or 230 V
– AP-PAL-multi: 120 - 230 V
– EU: 230 V
/ 50 Hz (± 10%).
AC
– LATAM-NTSC: 120 - 230 V
– US: 120 V
/ 60 Hz (± 10%).
AC
/ 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
AC
•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 heat sinks as ground.
•Test probe: R
> 10 MΩ, Ci < 20 pF.
i
•Use an isolated trimmer/screwdriver to perform
alignments.
6.1.1 Alignment Sequence
•First, set the correct options:
– In SAM, select “Options”, and then “Option numbers”.
– Fill in the option settings for “Group 1” and “Group 2”
according to the set sticker (see also section Option
Settings).
– Press OK on the remote control before the cursor is
moved to the left.
– In submenu “Option numbers” select “Store” and press
OK on the RC.
•OR:
– In main menu, select “Store” again and press OK on
the RC.
– Switch the set to Stand-by.
•Warming up (>15 minutes).
6.2Hardware Alignments
Not applicable.
6.3Software Alignments
Put the set in SAM mode (see chapter 5. Service Modes, Error
Codes, and Fault Finding). The SAM menu will now appear on
the screen. Select ALIGNMENTS and go to one of the sub
menus. The alignments are explained below.
The following items can be aligned:
•Tuner AGC.
•White point.
To store the data:
•Press OK on the RC before the cursor is moved to the left.
•In main menu select “Store” and press OK on the RC.
•Press MENU on the RC to switch back to the main menu.
•Switch the set to stand-by mode.
For the next alignments, supply the following test signals via a
video generator to the RF input:
•EU/AP-PAL models: a PAL B/G TV-signal with a signal
strength of at least 1 mV and a frequency of 475.25 MHz
•US/AP-NTSC models: an NTSC M/N TV-signal with a
signal strength of at least 1 mV and a frequency of 61.25
MHz (channel 3).
•LATAM models: an NTSC M TV-signal with a signal
strength of at least 1 mV and a frequency of 61.25 MHz
(channel 3).
6.3.1Tuner AGC (RF AGC Take Over Point Adjustment)
Purpose: To keep the tuner output signal constant as the input
signal amplitude varies.
No alignment is necessary, as the AGC alignment is done
automatically (standard value: “80”).
Store settings and exit SAM.
6.3.2White Point
•Set “Active control” to “Off”.
•Choose “TV menu”, “TV Settings” and then “Picture” and
set picture settings as follows:
Picture Setting
Dynamic backlight Off
Dynamic ContrastOff
Colour EnhancementOff
Picture Format Un scaled
Light SensorOff
Brightness50
Colour0
Contrast100
•Go to the SAM and select “Alignments”-> “White point”.
White point alignment LCD screens:
•Use a 100% white screen as input signal and set the
following values:
– “Colour temperature”: “Normal”.
– All “White point” values to: “127”.
– “Red BL offset” values to “7”.
– “Green BL offset” values to “7”.
In case you have a colour analyser:
•Measure with a calibrated contactless colour analyser 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 127) by means of
decreasing the value of one or two other white points to the
correct x, y coordinates (see Table 6-1
). Tolerance: dx: ±
0.004, dy: ± 0.004.
•Repeat this step for the other colour temperatures that
need to be aligned.
•When finished press OK on the RC and then press STORE
(in the SAM root menu) to store the aligned values to the
NVM.
•Restore the initial picture settings after the alignments.
Table 6-1 White D alignment values
ValueCool (11000K)Normal (9000K)Warm (6500K)
x0.2770.2880.318
y0.2900.2980.337
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.
2009-Dec-18
Alignments
EN 33Q548.1E LB6.
•Select a COLOUR TEMPERATURE (e.g. COOL,
NORMAL, or WARM).
•Set the RED, GREEN and BLUE default values according
to the values in Table 6-1
.
•When finished press OK on the RC, then press STORE (in
the SAM root menu) to store the aligned values to the NVM.
•Restore the initial picture settings after the alignments.
Table 6-2 White tone default settings 40" Frame sets
White ToneBlack level offset
Colour TempRGBR G
Normal12711411488
Cool12312212688
Warm1271106788
6.4Option 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
PNX5120 ICs (back-end advanced video picture improvement
IC which offers motion estimation and compensation features
(commercially called HDNM) plus integrated Ambilight control)
is made known by the option codes.
Notes:
•After changing the option(s), save them by pressing the OK
button on the RC before the cursor is moved to the left,
select STORE in the SAM root menu and press OK on the
RC.
•The new option setting is only active after the TV is
switched “off” / “stand-by” and “on” again with the mains
switch (the NVM is then read again).
6.4.2 Dealer Options
For dealer options, in SAM select “Dealer options”.
See Table 6-5
6.4.3 (Service) Options
.
Diversity
Not all sets with the same Commercial Type Number (CTN)
necessarily have the same option code!
Use of Alternative BOM An alternative BOM number usually
indicates the use of an alternative display or power supply. This
results in another display code thus in another Option code. For
the power supply there is no difference.
Refer to Chapter 3. Precautions, Notes, and Abbreviation List.
Important: after having edited the option numbers as
described above, you must press OK on the remote control
2
C
before the cursor is moved to the left!
BBE & WMA Functionality
Some sets have the possibility to switch “on” the “BBE” and/or
“WMA” functionality for an enhanced audio experience. This
has to be executed via ComPair via “option 9”.
Table 6-4 “Option 9” overview
CTN
(Alt. BOM#)
40PFL8664H/1200057
40PFL7664H/1200057
Option 9
6.5Reset of Repaired SSB
A very important issue towards a repaired SSB from a service
repair shop implies the reset of the NVM on the SSB.
A repaired SSB in service should get the service Set type
“00PF0000000000” and Production code “00000000000000”.
Also the virgin bit is to be set. To set all this, you can use the
ComPair tool.
In case of a display replacement, reset the “Operation hours” to
“0”, or to the operation hours of the replacement display.
Select the sub menu's to set the initialisation codes (options) of
the model number via text menus. See Table 6-5
6.4.4 Opt. No. (Option numbers)
Select this sub menu to set all options at once (expressed in
two long strings of numbers).
An option number (or “option byte”) represents a number of
different options. When you change these numbers directly,
you can set all options very quickly. All options are controlled
via eight option numbers.
When the NVM is replaced, all options will require resetting. To
be certain that the factory settings are reproduced exactly, you
must set both option number lines. You can find the correct
option numbers on a sticker inside the TV set and in Table 6-3Example: The options sticker gives the following option
numbers:
•08192 00133 01387 45160
•12232 04256 00164 00000
The first line (group 1) indicates hardware options 1 to 4, the
second line (group 2) indicate software options 5 to 8.
Every 5-digit number represents 16 bits (so the maximum value
will be 65536 if all options are set).
When all the correct options are set, the sum of the decimal
values of each Option Byte (OB) will give the option number.
See Table 6-3
for the options.
6.5.1SSB identification
.
Whenever ordering a new SSB, it should ne noted that the
correct ordering number (12nc) of a SSB is located on a sticker
on the SSB. The format is <12nc SSB><serial number>. The
ordering number of a “Service” SSB is the same as the ordering
number of an initial “factory” SSB.
.
2009-Dec-18
EN 34Q548.1E LB6.
Alignments
18310_221_090318.eps
090319
Figure 6-1 SSB identification
6.6Service SSB delivered without main software
loaded
Due to a changed manufacturing process, new Service SSBs
can be delivered to the warehouse without main TV
software loaded. Below you find the steps to follow when such
an SSB is received. Additional information you will find in
section 5.8.12 SSB Replacement
6.6.1 When a picture is available
1. Mount the Service SSB into the TV set. After start-up,
normally the download application will appear on the
screen.
2. Download the latest main software (FUS) from the
www.p4c.philips.com
3. Create a folder "upgrades" in the root of a USB stick (size
> 50 MB) and save the "autorun.upg" file in this "upgrades"
folder. Note: it is possible to rename this file, e.g.
.
website.
"Q549_SW_version.upg", this in case there are more than
one "autorun.upg" files on your USB stick
4. Plug the prepared USB stick into the TV set, and select the
"autorun" file in the displayed browser on the screen
5. Now the main TV software will be loaded automatically,
supported by a progress bar
6. Set the correct "display code" via "062598-HOME-xxx",
where "xxx" is the 3-digit display panel code (see sticker on
the side/bottom of the cabinet).
6.6.2When no picture is available
Due to a possible wrong display option code in the received
Service SSB (NVM), no picture can be available at start-up and
thus no download application will be visible. Here you can
proceed and finalize step by step to load the main TV software
via the UART logging on the PC (for visual feedback).
1. Start-up the TV set, equipped with the Service SSB, and
enable the UART logging on the PC (see for settings 5.8
Fault Finding and Repair Tips5.8.6 UART Logging)
2. The TV set will start-up automatically in the download
application if main TV software is not loaded
3. Plug the prepared USB stick into the TV set, press cursor
"Right" to enter the list, and navigate to the "autorun" file in
the UART logging printout via the cursor keys on the
remote control. When the correct file is selected, press
"OK"
4. Press cursor "Down" and "OK" to start the flashing of the
main TV software. Printouts like: "L: 1-100% , V: 1-100%
and P: 1-100%" should be visible now in the UART logging
5. Wait until the message "Operation successful!” is
displayed and remove all inserted media. Restart the TV
set
6. Set the correct "display code" via "062598-HOME-xxx",
where "xxx" is the 3-digit display panel code (see sticker on
the side/bottom of the cabinet).
6.6.3Use of repaired SSBs instead of new
Repaired SSBs on stock will obviously already contain main TV
software. This implies that only a main software upgrade is
required if you use a “repaired” SSB for board swap instead of
a “new” SSB.
6.7Total Overview SAM modes
Table 6-5 SAM mode overview
Main MenuSub-menu 1Sub-menu 2Sub-menu 3Description
Hardware InformationA. SW version e.g. “Q5431_0.26.10.0”Display TV & Stand-by SW version and CTN serial
B. Stand-by processor version e.g. “STDBY_84.69.0.0”
C. Production code e.g. “See type plate”
Operation hoursDisplays the accumulated total of operation hours.TV
ErrorDisplayed the most recent error.
Reset error bufferClears all content in the error buffer.
AlignmentTuner AGCRF-AGC Take over point adjustment (AGC default
White pointColour temperatureNormal3 difference modes of colour temperature can be se-
number.
switched “on/off” & every 0.5 hours is increase one
value is 64)
Warn
Cool
White point redLCD White Point Alignment. For values,
White point green
White point blue
Red black level offset
Green black level offset
lected
see Table 6-1.
2009-Dec-18
Alignments
Main MenuSub-menu 1Sub-menu 2Sub-menu 3Description
Dealer optionsPicture muteOff/OnSelect Picture mute On/Off. Picture is muted / not
Video reproductionPicture processingNone/PNX5120Select Picture processing None/PNX5120 (Q543.xE
MOP local contrastOff/OnSelect MOP local contrast On/Off
Light sensorOff/OnSelect Light sensor On/Off
Light sensor type0/1/2/3Select Light sensor type form 0 to 3 (for difference
Pixel Plus typePixel Plus HDSelect type of picture improvement.
Perfect Pixel HD
Pixel Precise HD
Pixel Plus HD (used in Q543.xE)
Pixel Precise HD (used in Q548.1E)
AmbilightNone,Select type of Ambilight modules use.
2 sided 2/2
2 sided 4/4
3 sided 2/3/2
3 sided 4/3/4
3 sided 4/5/4
4 sided 4/3/4/3
Ambilight technologyLED/Future useAmbi light technology LED is in use.
MOP ambilightOff/OnSelect MOP ambilight On/Off
muted in case no input signal is detected at input connectors.
Select Virgin mode On/Off. TV starts up / does not
start up (once) with a language selection menu after
the mains switch is turned “on” for the first time (virgin
mode)
chassis).
styling).
For 8400 series only
EN 35Q548.1E LB6.
2009-Dec-18
EN 36Q548.1E LB6.
Main MenuSub-menu 1Sub-menu 2Sub-menu 3Description
Audio reproductionAcoustic systemCabinet design used for setting dynamic audio pa-
Source selectionEXT1/AV1 typeSCART CBVS RGB LRSelect input source when connected with external
Select Store in the SAM root menu after making any
changes.
can reset the “Display operation ho urs” to “0”. So, this
one does keeps up the lifetime of the display itself
(mainly to compensate the degeneration behaviour).
lation.
2009-Dec-18
Alignments
Main MenuSub-menu 1Sub-menu 2Sub-menu 3Description
Development file versions
Upload to USBChannel listTo upload several settings from the TV to an USB
Download from USBChannel listTo download several settings from the USB stick to
Development 1 file versionDisplay parameters DISPT 4.0.8.11Display information is for development purposes.
Acoustics parameters ACSTS 3.0.6.1
PQF - Fixed settings 1
“4.54.34.32.34”
PQS - Profile set 1 “4.57.34.32.34”
PQU - User styles 1 “4.56.34.32.34”
Development 2 file version12NC one zip softwareDisplay information is for development purposes.
Initial main software
NVM version Q5431_0.4.3.0
Flash units SW Q5431_0.16.48.24
Personal settings
Option codes
Display-related alignment
History list
Personal settings
Option codes
Display-related alignment
stick
the TV.
EN 37Q548.1E LB6.
2009-Dec-18
EN 38Q548.1E LB7.
7.Circuit Descriptions
Circuit Descriptions
Index of this chapter:
7.1 Introduction
7.2 Power Supply
7.3 DC-DC Converter
7.4 Front-End
7.5 HDMI
7.6 Video and Audio Processing - PNX8543
7.7 Common Interface CI+
Notes:
•Only new circuits (circuits that are not published recently)
are described.
•Figures can deviate slightly from the actual situation, due
to different set executions.
•For a good understanding of the following circuit
descriptions, please use the wiring, block (see chapter 9.
Block Diagrams) and circuit diagrams (see chapter
10. Circuit Diagrams and PWB Layouts).Where necessary,
you will find a separate drawing for clarification.
7.1Introduction
The Q548.1E LB chassis (platform name TV543/82) is a
derivative from the Q548.1E LA chassis.
Main differences with the previous chassis are the application
of:
•an “edge-lit” LCD panel
•a temperature sensor for temperature control
•an FSP dual Power Supply Unit.
The sets are equipped with Ambilight.
Only the Power Supply Units are described in this chassis. For
all other circuitry, refer to the Q548.1E LA Service Manual.
7.1.1Implementation
Key components of this chassis are:
•PNX8543 Digital Colour Decoder
•HD1816AF Hybrid Tuner
•DRX3926K Demodulator
•TDA9996 HDMI Switch
•TPA3123D2PWP Class D Power Amplifier
•PNX5120 Video Back-End Processor.
7.1.2TV543 Architecture Overview
•For details about the chassis block diagrams refer to
chapter 9. Block Diagrams. An overview of the TV543
architecture can be found in Figure 7-1
.
2009-Dec-18
Figure 7-1 Architecture of TV543/82 platform
18670_200_090828.eps
090828
7.1.3 SSB Cell Layout
Circuit Descriptions
EN 39Q548.1E LB7.
Figure 7-2 SSB layout cells (top view)
18540_201_090327.eps
091112
2009-Dec-18
EN 40Q548.1E LB7.
7.2Power Supply
All power supplies described below are a “black box” for
Service. When defective, a new board must be ordered and the
defective one must be returned, unless the main fuse of the
board is broken. Always replace a defective fuse with one with
the correct specifications! This part is available in the regular
market.
Consult the Service Spare Parts website for the order codes of
the boards.
7.2.1 Specifications
Circuit Descriptions
Sets in this chassis use the “FSP202-5F01” dual-Power Supply
Unit from FSP Technology Inc. In this Service Manual, no
detailed information is available for design protection reasons.
The display used in the sets uses LEDs as backlight. The
drivers for these LEDS are integrated on the PSUs.
7.2.2 Application Block Diagram
PSU 1
1M99
1M95
EMI-filter,
PFC
(power fact. corr.),
3V3standby
LED-driver part I
1316
Connector
to backlight
1308
1350
1351
Interfacing
between
the 2 PWBs
1350
1M59
Main converter
12Vssb
24Vsound/bolt-on
18V_bolt-on
LED-driver part II
1351
18670_201_090908.eps
Figure 7-3 Block Diagram PSU
7.2.3Control
PSU 2
1M83
1M84
1319
Connector
to backlight
090908
LED-Drive
+Vbolt-on
18670_202_090908.eps
090908
Figure 7-4 Rise-and-fall sequence PSU
7.2.4Connector Pin Assignments
1308
CN1
1M95
CN4
SND
Pin no.
1N3V3stdby+12VAL_I2C_
2LStandby+12VGNDGNDGND
3-GND1GND1AL_I2C_
4-GND1GND1n.c.GND+3.3V
5-GND1BL_ON_
6-+12VDIM+3.3V+3.3V+3.3V
7-+12VBoostGNDGNDGND
8-+12Vn.c.-n.c.n.c.
9-+VsndINVOK-n.c.n.c.
10-GND_
11-n.c.n.c.-Vbolt-on2 Vbolt-on2
12--n.c.-GND1GND1
13----Vbolt-on1 Vbolt-on1
14----GND1GND1
Connector
1M99
CN5
OFF
n.c.-n.c.n.c.
1M59
CN6
SCL
SDA
n.c.GNDGND
1M83
CN7
AL_I2C_
SCL
AL_I2C_
SDA
1M84
AL_I2C_
AL_I2C_
CN8
SCL
SDA
The Power Supply Unit is controlled via a digital input signal
consisting of the “STANDBY”, “DIM”, “BLON” and “BOOST”
lines.
When the LED driver outputs are activated, the PSU will
generate an INVOK signal from LOW to HIGH. When the LED
driver outputs are de-activated, the generated INVOK signal is
LOW.
The definitions of LOW and HIGH are:
•LOW: < 0.4 V
•HIGH: > 2.4 V.
2009-Dec-18
Connector
Pin no.
1GNDVccCC1ACA2
23V3sHV-CC2ACA2
3BLONn.c.CC3ACC8B
4STBHV+CC4ACC7B
5PWM-D-CC5ACC6B
6Vref-CC6ACC5B
7SCP-CC7ACC4B
8B-V-CC8ACC3B
915V-CA1CC2B
10GND-CA1CC1B
11GND---
1237V---
1337V---
1351
CN-S-1(-A)
1350
CN-P-1(-A)
1316
CN2
1319
CN3
8.IC Data Sheets
IC Data Sheets
EN 41Q548.1E LB8.
This chapter shows the internal block diagrams and pin
configurations of ICs that are drawn as “black boxes” in the
electrical diagrams (with the exception of “memory” and “logic”
ICs).
Figure 8-3 Internal block diagram and pin configuration
G_16290_084.eps
020206
2009-Dec-18
EN 44Q548.1E LB8.
IC Data Sheets
8.4Diagram SSB: Front End B02A, DRX3926K (IC 7303)
Block Diagram
RF AGC
Main
Tuner
2
C
I
Pin Configuration
VSSAL_AFE2
VDDAL_AFE2
PDP
PDN
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
49XI
50XO
51VSSAH_OSC
52VDDAH_OSC
53VDDH
54VSSH
55VSSL
56VDDL
57TDO
58TMS
59TCK
60TDI
61I2C_SDA2
62I2C_SCL2
63I2S_CL
64I2S_DA
123 45678 910111213 14 15 16
I2S_WS
VDDL
VSSL
SAW
Integrated Tuner
VDDAH_CVBS
SIF
GPIO1
MSTRT
MERR
VSSAH_CVBS
CVBS
VSSH
VDDH
IF AGC
DRXK
INP
MCLK
INN
VSSAH_AFE1
MD0
MVAL
ADCIF AMP
Presaw
Sense
VDDAH_AFE1
VDDAL_AFE1
MD2
MD1
VSSAL_AFE1
IF_AGC
RF_AGC
19
VDDL
VSSL
MD3
RSTN32
SAW_SW31
GPIO230
VSYNC29
VSSL28
VDDL27
VDDH26
VSSH25
I2C_SDA124
I2C_SCL123
MD722
MD621
MD520
MD4
VDDH18
VSSH17
DVB-T/QAM/ATV
Demodulator
Stereo Decoder
System Controller
DVB-T/QAM
FEC
DAC
DAC
MPEG-2
TS
CVBS
SIF
2
S Audio
I
2
C
I
GPIO
18440_300_090303.eps
090303
2009-Dec-18
Figure 8-4 Pin configuration
IC Data Sheets
8.5Diagram SSB: PNX8543 - Power B03A-B03H, PNX8543 (IC7600)
Block Diagram
TS in from
channel decoder
TS out/in for
PCMCIA
DV-ITU-656
CVBS, Y/C,
RGB
Low-IF
SSIF, LR
Dual SPDIF
I2S
Dual HDMI
PNX8543x
CI/CA
VIDEO
DECODER
DIGITAL IF
AUDIO DEMOD
AND DECODE
AUDIO IN
HDMI
RECEIVER
SYSTEM
CONTROLLER
(8051)
MPEG
SYSTEM
PROCESSOR
DV INPUT
3D COMB
MPEG/H.264
VIDEO
DECODER
300 MHz
MIPS32 4KEc
CPU
MEMORY
CONTROLLER
PRIMARY
VIDEO
OUTPUT
AV-PIP
SUB-PICTURE
SECONDARY
VIDEO
OUTPUT
SCALER,
DE-INTERLACE
AND NOISE
REDUCTION
AUDIO DSP
300 MHz
AV-D SP
DRAWING
ENGINE
DMA BLOCK
LVD S
VIDEO
ENCODER
AUDIO DACS
AUDIO OUT
LVD S for
flat panel display
(single or dual
channel)
analog CVBS
analog audio
2
S
I
SPDIF
EN 45Q548.1E LB8.
PWM
I2C
Pin Configuration
ball A1
index area
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
V
W
Y
AA
AB
AC
AD
AE
AF
AG
AH
AJ
AK
AL
AM
AN
AP
GPIO IRADCUART I2C GPIO Flash
SPI
USB 2.0 CA
01 x22 x
42612101826412 223082028614
1917253111927715235132129
PNX8543xEH
Transparent top view
PCI 2.2
32
34
33
31
18440_301_090303.eps
090303
Figure 8-5 Internal block diagram and pin configuration
2009-Dec-18
EN 46Q548.1E LB8.
IC Data Sheets
8.6Diagram SSB: Ethernet B05B, LAN9420 (IC7N04)
Block Diagram
PCI Host
LAN9420/LAN9420i
EEPROM
(optional)
Magnetics
To Ethernet
PCI Bus
PCI Device
PCI Device
Pin Configuration
External
25MHz Crystal
GPIOs/LEDs
(optional)
2009-Dec-18
Figure 8-6 Internal block diagram and pin configuration
18561_300_090717.eps
090717
8.7Diagram SSB: Class-D B06A, TPA3123D (IC 7L10)
Block Diagram
1F
LIN
RIN
1F
1F
BYPASS
AGND
IC Data Sheets
0.22 F
BSR
ROUT
PGNDR
PGNDL
LOUT
BSL
0.68 F
0.68 F
0.22 F
22 H
22 H
EN 47Q548.1E LB8.
470 F
470 F
PVCCL
PVCCR
VCLAMP
GAIN0
GAIN1
1F
}
Control
Shutdown
Control
AVC C
SD
MUTE
Pin Configuration
PVCCL
SD
PVCCL
MUTE
LIN
RIN
BYPASS
AGND
AGND
PVCCR
VCLAMP
PVCCR
TERMINAL
NAME
SD
RIN6IAudio input for right channel
LIN5IAudio input for left channel
GAIN018IGain select least-significant bit. TTL logic levels with compliance to AVCC
GAIN117IGain select most-significant bit. TTL logic levels with compliance to AVCC
MUTE4I
BSL21I/OBootstrap I/O for left channel
PVCCL1, 3PPower supply for left-channel H-bridge, not internally connected to PVCCR or AVCC
LOUT22OClass-D 1/2-H-bridge positive output for left channel
PGNDL23, 24PPower ground for left-channel H-bridge
VCLAMP11PInternally generated voltage supply for bootstrap capacitors
BSR16I/OBootstrap I/O for right channel
ROUT15OClass-D 1/2-H-bridge negative output for right channel
PGNDR13, 14PPower ground for right-channel H-bridge.
PVCCR10, 12PPower supply for right-channel H-bridge, not connected to PVCCL or AVCC
AGND9PAnalog ground for digital/analog cells in core
AGND8PAnalog ground for analog cells in core
BYPASS7O
AVCC19, 20PHigh-voltage analog power supply. Not internally connected to PVCCR or PVCCL
Thermal padDie padP
24-PIN
(PWP)
I/O/PDESCRIPTION
2I
Shutdown signal for IC (low = disabled, high = operational). TTL logic levels with compliance to
AVCC
Mute signal for quick disable/enable of outputs (high = outputs switch at 50% duty cycle, low =
outputs enabled). TTL logic levels with compliance to AVCC
Reference for preamplifier inputs. Nominally equal to AVCC/8. Also controls start-up time via
external capacitor sizing.
Connect to ground. Thermal pad should be soldered down on all applications to properly
secure device to printed wiring board.
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
PGNDL
PGNDL
LOUT
BSL
AVC C
AVC C
GAIN0
GAIN1
BSR
ROUT
PGNDR
PGNDR
18440_302_090303.eps
090303
Figure 8-7 Internal block diagram and pin configuration
2009-Dec-18
EN 48Q548.1E LB8.
IC Data Sheets
2009-Dec-18
9.Block Diagrams
B
n
o
S
P
h
on
3/8
G
5
5
p
P
h
on
1
G50
p
1
M
7
1
4
p
epses
o
Wiring Diagram 40" (Edge LIT)
Block Diagrams
EN 49Q548.1E LB9.
S
ide
c
o
n
r
o
l
1317
8316
6
131
131
7
8319
1M84
1M84
LP 5/5 Dim 370 x25
CN3
Heatsink
1
M
8
3
8395
1M951M99
12p
11p
1M20
8p
1G51
51p
1G50
41p
1M59
7p
8171
1351
13p
CN-S-1
8351
1M01
1735
Woofer
4p
p
3
Y
P
b
P
r
Temp
sensor
1M9
5
11p
CN4
8399
1M99
12p
CN5
FSP
CN1
1308
2p3
4p3
1
3
5
0
CN-P-1
SSB: TV 543/82
VGA
Conditionnal access
8350
8735
c
e
2p3
Inlet
8408
Ethernet
1M10
5p
S
e
rvi
HDMI
USB
Pho
SVHS
no
8151
Cinch ( x3)
Tempsensor
1M
71
4p
Fan control
1F
3p
A
1
1
FA2
3p
Fan control
8307
13
5
1
13P
CN-S-1-A
1
35
0
For a pinning overview see
chapter 7 Circuit Descriptions
4p3
CN-P-1-A
PSU 1
For a pinning overview see
chapter 7 Circuit Descriptions
SRP (Service Re ference Protocol) is a softw are too l that creates a list w i th all refer e n c es to signal lines. The list contains
references to the signals w i thin all schemat ics of a PWB. It replaces the text refe r ences currentl y p r inted next t o the signal
names in the s
chematics. These printed refe rencesare created man ually an d are t h e r efore n o t guar an teed to be 100 %
correct. In additio n , in the current crowded schema t ics there is often none or ver y little pl ace for these references. Some of the PW
B schematics w ill use SRP while others w ill sti ll use the manual refe rences. Either there w
r e fer ence list for aschematic, or ther e w ill be pr inted r e ferences in the schematic.
1.2. No n - SRP Schematics
There a r e severa l different signalsavailable in aschematic:
1.2.1. Po w e r Supply Lines
All pow er suppl y lines are available in t he suppl y line overview (see chapter 6). I n th e schematics (se e chapter 7) is n o t
indicated w h e r e suppliesare coming from or going to.
It is how ever indi ca
ted if a supply is incoming (created elsew h e r e), o r outgoing (cr eat ed or adapt ed in the current sche m atic).
+5 V +5 V
Outgoing Incoming
1.2.2. Normal Signals
For no rmal signals, aschematic r e ference (e. g . B1 4b) is placed next to the signals.
B 14b
si gnal _nam e
1.2.3. Grounds
For no rmal and s pecial grounds (e .g. GN DH OT o r GND3V3 etc.), n o thing is indicate d.
1.3. SRP Schematics
SRP is a tool, w h ich automatically creates a list w i th signal reference s , indicating on which sc hematic t he signals are used.
A reference is cr eated for all signals indicat ed w i th an SRP s y mbol, these s y mbols are:
+5 V +5 V
na m e na m e
na m e na m e
na m e na m e
na m e
Bi-directional lin e (e.g. SDA ) into a w i r e tree.
na m e
Signal line into a w i r e tree, its dir e ction depends on t he circuit (e.g. ingoing for PD P, outgoing for L C D sets).
Remarks:
• When there is a black dot on the "signal dire ction arrow" it isan SRP symbol, so there will be a reference to the signal
name in the SRP list.
• All references to normal grounds (Ground symbols without additi onal text)
it concise.
ill be an SRP
Power suppl y li ne.
Stand alone signal or sw itching li ne (used as lessas possible).
Signal line into a w i re tree.
Sw itching line into a w i re tre e .
are not listed in the reference list, this to keep
• Signals that are not used in multiple schematics, but only onc e or several times in the same schematic, are included
in the SRP reference list, but only with one reference.
Additional Tip:
When using the PDF service manual file, you can very easily search for signal names and follow the signal over all the
schematics. In Adob
e PDF reader:
• Select the signal name you want to sear ch for, with the "Select text" tool.
• Copy and paste the signal name in the "Search PDF" tool.
• Search for all occurrences of the signal name.
• Now you can quickly jump between the different occurrencesand follow the signal over all schematics. It is advised to
"zoom in" to e.g. 150% to see clearly, which text isselect
ed. Then you can zoom out, to get an overview of the complete
schematic.
PS. It is recommended to use at least Adobe PDF (reader) version 6. x, due to better search possibilities in this version.