Copyright 2011 Koninklijke Philips Electronics N.V.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic, mechanical,
photocopying, or otherwise without the prior permission of Philips.
Published by MB/WSK 1162 BU TV Consumer Care, the NetherlandsSubject to modificationEN 3122 785 19001
2011-Feb-18
EN 2RAM1.0L LA1.
Revision List
1.Revision List
Manual xxxx xxx xxxx.0
•First release.
Manual xxxx xxx xxxx.1
•Added the following sets to the manual: 32PFL3405/77,
32PFL3415/77, 32PFL3425/77, 32PFL3625/77, and
42PFL3625/77.
2.Technical Specifications, Connections
Index of this chapter:
2.1 Technical Specifications
2.2 Directions for Use
2.3 Connections
Notes:
•Figures can deviate due to the different set executions.
•Specifications are indicative (subject to change).
2.1Technical 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
Model NumberStylingPublished in
32PFL3405/77
32PFL3415/77
32PFL3425/77
32PFL3605/77
32PFL3615/77
32PFL3625/77
42PFL3605/77
42PFL3615/77
42PFL3625/77
Dali3122 785 19001
Dali3122 785 19001
Dali3122 785 19001
Dali3122 785 19000
Dali3122 785 19000
Dali3122 785 19001
Dali3122 785 19000
Dali3122 785 19000
Dali3122 785 19001
2.2Directions for Use
Directions for use can be downloaded from the following
websites:
Ye - Video CVBS 1 V
Wh - Audio L 0.5 V
Rd - Audio R 0.5 V
3 - S-Video (Hosiden): Video Y/C - In
1-Ground Y Gnd H
2-Ground C Gnd H
3 - Video Y 1 V
4 - Video C 0.3 V
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
/ 75 ohm j
PP
/ 75 ohm j
PP
Figure 2-2 USB (type A)
1-+5V k
2 - Data (-) jk
3 - Data (+) jk
4 - Ground Gnd H
2011-Feb-18
EN 4RAM1.0L LA2.
1
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10
11
5
15
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182
Technical Specifications, Connections
2.3.2Rear Connections
5 - Aerial - In
-- IEC-type (EU) Coax, 75 ohm D
6 - Cinch: Audio - Out
Rd - Audio - R 0.5 V
Wh - Audio - L 0.5 V
/ 10 kohm kq
RMS
/ 10 kohm kq
RMS
7 - Cinch: Video YPbPr - In, Audio - In
Gn - Video Y 1 V
Bu - Video Pb 0.7 V
Rd - Video Pr 0.7 V
Rd - Audio - R 0.5 V
Wh - Audio - L 0.5 V
/ 75 ohm jq
PP
/ 75 ohm jq
PP
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
8 - VGA: Video RGB - In, Mini Jack: Audio - In
Figure 2-3 VGA Connector
1 - Video Red 0.7 V
2 - Video Green 0.7 V
3 - Video Blue 0.7 V
/ 75 ohm j
PP
/ 75 ohm j
PP
/ 75 ohm j
PP
4-n.c.
5 - Ground Gnd H
6 - Ground Red Gnd H
7 - Ground Green Gnd H
8 - Ground Blue Gnd H
9-+5V
+5 V j
DC
10 - Ground Sync Gnd H
11 - n.c.
12 - DDC_SDA DDC data j
13 - H-sync 0 - 5 V j
14 - V-sync 0 - 5 V j
15 - DDC_SCL DDC clock j
9 - HDMI 1, 2: Digital Video, Digital Audio - In
Figure 2-4 HDMI (type A) connector
1 - D2+ Data channel j
2 - Shield Gnd H
3 - D2- Data channel j
4 - D1+ Data channel j
5 - Shield Gnd H
6 - D1- Data channel j
7 - D0+ Data channel j
8 - Shield Gnd H
9 - D0- Data channel j
10 - CLK+ Data channel j
11 - Shield Gnd H
12 - CLK- Data channel j
13 - Easylink/CEC Control channel jk
14 - n.c.
15 - DDC_SCL DDC clock j
16 - DDC_SDA DDC data jk
17 - Ground Gnd H
18 - +5V j
19 - HPD Hot Plug Detect j
20 - Ground Gnd H
10 - Service Connector (UART)
1 - Ground Gnd H
2 - UART_TX Transmit k
3 - UART_RX Receive j
Wh - Audio L 0.5 V
Rd - Audio R 0.5 V
/ 10 kohm jo
RMS
/ 10 kohm jo
RMS
2011-Feb-18
Precautions, Notes, and Abbreviation List
3.Precautions, Notes, and Abbreviation List
EN 5RAM1.0L LA3.
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.
Safety regulations require that after a repair, the set must be
returned in its original condition. Pay in particular attention to
the following points:
•Route the wire trees correctly and fix them with the
mounted cable clamps.
•Check the insulation of the Mains/AC Power lead for
external damage.
•Check the strain relief of the Mains/AC Power cord for
proper function.
•Check the electrical DC resistance between the Mains/AC
Power plug and the secondary side (only for sets that have
a Mains/AC Power isolated power supply):
1. Unplug the Mains/AC Power cord and connect a wire
between the two pins of the Mains/AC Power plug.
2. Set the Mains/AC Power switch to the “on” position
(keep the Mains/AC Power cord unplugged!).
3. Measure the resistance value between the pins of the
Mains/AC Power plug and the metal shielding of the
tuner or the aerial connection on the set. The reading
should be between 4.5 M and 12 M.
4. Switch “off” the set, and remove the wire between the
two pins of the Mains/AC Power plug.
•Check the cabinet for defects, to prevent touching of any
inner parts by the customer.
•Where necessary, measure the waveforms and voltages
with (D) and without (E) aerial signal. Measure the
voltages in the power supply section both in normal
operation (G) and in stand-by (F). These values are
indicated by means of the appropriate symbols.
3.3.2Schematic 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 k).
•Resistor values with no multiplier may be indicated with
either an “E” or an “R” (e.g. 220E or 220R indicates 220 ).
•All capacitor values are given in micro-farads (10
nano-farads (n 10
•Capacitor values may also use the value multiplier as the
decimal point indication (e.g. 2p2 indicates 2.2 pF).
•An “asterisk” (*) indicates component usage varies. Refer
to the diversity tables for the correct values.
•The correct component values are listed on the Philips
Spare Parts Web Portal.
3.3.3Spare 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
3.3.1General
•Measure the voltages and waveforms with regard to the
chassis (= tuner) ground (H), or hot ground (I), depending
on the tested area of circuitry. The voltages and waveforms
shown in the diagrams are indicative. Measure them in the
Service Default Mode with a colour bar signal and stereo
sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and
picture carrier at 475.25 MHz for PAL, or 61.25 MHz for
NTSC (channel 3).
3.3.5Lead-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.
3.3.6Alternative BOM identification
It should be noted that on the European Service website,
“Alternative BOM” is referred to as “Design variant”.
2011-Feb-18
EN 6RAM1.0L LA3.
Precautions, Notes, and Abbreviation List
The third digit in the serial number (example:
AG2B0335000001) indicates the number of the alternative
B.O.M. (Bill Of Materials) that has been used for producing the
specific TV set. In general, it is possible that the same TV
model on the market is produced with e.g. two different types
of displays, coming from two different suppliers. This will then
result in sets which have the same CTN (Commercial Type
Number; e.g. 28PW9515/12) but which have a different B.O.M.
number.
By looking at the third digit of the serial number, one can
identify which B.O.M. is used for the TV set he is working with.
If the third digit of the serial number contains the number “1”
(example: AG1B033500001), then the TV set has been
manufactured according to B.O.M. number 1. If the third digit is
a “2” (example: AG2B0335000001), then the set has been
produced according to B.O.M. no. 2. This is important for
ordering the correct spare parts!
For the third digit, the numbers 1...9 and the characters A...Z
can be used, so in total: 9 plus 26= 35 different B.O.M.s can be
indicated by the third digit of the serial number.
Identification: The bottom line of a type plate gives a 14-digit
serial number. Digits 1 and 2 refer to the production centre (e.g.
AG is Bruges), digit 3 refers to the B.O.M. code, digit 4 refers
to the Service version change code, digits 5 and 6 refer to the
production year, and digits 7 and 8 refer to production week (in
example below it is 2006 week 17). The 6 last digits contain the
serial number.
MODEL :
PROD.NO:
32PF9968/10
AG 1A0617 000001
MADE IN BELGIUM
220-240V 50/60Hz
VHF+S+H+UHF
S
10000_024_090121.eps
~
BJ3.0E LA
Figure 3-1 Serial number (example)
3.3.7Board 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!
3.3.8Practical Service Precautions
•It makes sense to avoid exposure to electrical shock.
While some sources are expected to have a possible
dangerous impact, others of quite high potential are of
limited current and are sometimes held in less regard.
•Always respect voltages. While some may not be
dangerous in themselves, they can cause unexpected
reactions that are best avoided. Before reaching into a
powered TV set, it is best to test the high voltage insulation.
It is easy to do, and is a good service precaution.
128W
100105
3.4Abbreviation 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
2011-Feb-18
Precautions, Notes, and Abbreviation List
EN 7RAM1.0L LA3.
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
PSDLPower Supply for Direct view LED
backlight with 2D-dimming
PSLPower Supply with integrated LED
drivers
PSLSPower Supply with integrated LED
drivers with added Scanning
functionality
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
Téléviseurs
SCLSerial Clock I
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
UXGA1 600 × 1200 (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
WXGA1 280 × 768 (15:9)
XTALQuartz crystal
XGA1 024 × 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
2011-Feb-18
4.Mechanical Instructions
18930_101_100303.eps
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Mechanical Instructions
EN 9RAM1.0L LA4.
Index of this chapter:
4.1 Cable Dressing
4.2 Service Positions
4.3 Assembly/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 (32")
2011-Feb-18
EN 10RAM1.0L LA4.
18930_120_100303.eps
100303
Mechanical Instructions
4.2Service Positions
For easy servicing of a TV set, the set should be put face down
on a soft flat surface, foam buffers or other specific workshop
tools. Ensure that a stable situation is created to perform
measurements and alignments. When using foam bars take
care that these always support the cabinet and never only the
display. Caution: Failure to follow these guidelines can
seriously damage the display!
Ensure that ESD safe measures are taken.
Figure 4-2 Cable dressing (42")
2011-Feb-18
4.3Assembly/Panel Removal
18930_100_100302.eps
100305
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3
3
3
3
1
33
3
1
2
2
3
3
2
3
3
1
2
18930_121_100303.eps
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4
4
4
44
1
2
1
3
3
3
3
1
2
2
3
3
2
3
4.3.1 Rear Cover
Mechanical Instructions
EN 11RAM1.0L LA4.
Figure 4-3 Rear cover removal (32")
Figure 4-4 Rear cover removal (42")
2011-Feb-18
EN 12RAM1.0L LA4.
18930_106_100305.eps
100305
4
4
8
7
8
8
8
2
2
22
4
4
8
8
8
3
6
1
6
5
18930_122_100304.eps
100305
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4
8
7
8
8
8
22
22
4
4
8
8
8
3
6
1
6
5
Warning: Disconnect the mains power cord before removing
the rear cover.
See Figure 4-3
1. Remove the 3 different kind of fixation screws that secure
the rear cover.
2. Lift the rear cover from the TV. Make sure that wires and
flat foils are not damaged while lifting the rear cover from
the set.
4.3.2 Speakers
and Figure 4-4.
Mechanical Instructions
Figure 4-5 Speakers, PSU & SSB removal (32")
Figure 4-6 Speakers, PSU & SSB removal (42")
2011-Feb-18
Mechanical Instructions
18930_105_100304.eps
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2
1
1
1
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2
1
1
1
EN 13RAM1.0L LA4.
See Figure 4-5 and Figure 4-6.
1. Unplug the speaker connector [1] from the SSB and
remove the wire wrap from this cable.
4.3.3Power Supply Unit (PSU)
Caution: it is mandatory to remount all different screws at their
original position during re-assembly. Failure to do so may result
in damaging the PSU. See Figure 4-5
1. Unplug all connectors [3] from the PSU.
2. Remove all fixation screws [4] from the PSU.
3. The PSU can now be taken out of the set.
When defective, replace the whole unit.
4.3.4Small Signal Board (SSB)
Caution: it is mandatory to remount all different screws at their
original position during re-assembly. Failure to do so may result
in damaging the SSB. See Figure 4-5
1. Release the clips from both the LVDS Flat Foil
connectors [5].
Caution: be careful, as these are very fragile connectors!
Take the flat foils out of their connectors.
2. Unplug all other connectors [1] and [6].
3. Remove grounding screws [7] from the stand support.
4. Remove all other fixation screws [8] from the SSB.
5. The SSB can now be lifted upwards away from the bottom
shield cover.
Caution: be careful not to damage the bottom shielding
between the SSB and the plastic stand-off.
and Figure 4-6.
and Figure 4-6.
2. Remove the fixation screws from the speakers [2].
3. Take the speakers out.
When defective, replace the whole unit.
4.3.5Stand support plate
Figure 4-8 Stand support plate (42")
See Figure 4-7
1. Remove the SSB as described earlier.
2. Remove the PSU as described earlier.
3. Remove shielding fixation screws [1]. See Figure 4-7
4. Remove stand support plate fixation screws [2].
5. Lift up the support plate together with the stand.
and Figure 4-8.
Figure 4-7 Stand support plate (32")
2011-Feb-18
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3
3
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4
4
3
3
4
4
3
3333
22
1
3
4
4.3.6Bezel removal
Mechanical Instructions
Figure 4-9 Bezel removal (32")
See Figure 4-9
1. Remove the speakers as described earlier.
2. Remove the panel holders [3] (42" version only).
3. Remove the other fixation screws [1] and [2].
4. Lift up the LCD panel.
2011-Feb-18
and Figure 4-10.
Figure 4-10 Bezel removal (42")
Mechanical Instructions
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EN 15RAM1.0L LA4.
4.3.7IR/LED Board
Figure 4-11 IR/LED Board
1. Remove the bezel as described earlier.
2. Unplug the connectors from the IR/LED board.
3. Release the clips that hold the board and take it from the
bezel, see Figure 4-11
.
When defective, replace the whole unit.
4.3.8Keyboard Control Board
1. Remove the bezel as described earlier.
2. Unplug the connector from the Keyboard Control Board.
3. Remove the fixation screws from the Keyboard Control
Board and take unit out.
When defective, replace the whole unit.
1. Remove the SSB as described earlier.
2. Remove the PSU as described earlier.
3. Remove the stand support plate as described earlier.
4. Remove the bezel as described earlier.
5. Remove the Vesa spacer as shown in Figure 4-12
by using
a 10 m.m. wrench. Note it has been secured with
Loctite 2440.
6. Lift the LCD Panel from the bezel.
Returning a defect LCD panel
To return a defect LCD panel to the factory, all boards, cabling,
mechanical supports, shieldings, clamps, spacers, the bezel
and tapes have to be removed from the panel, see Figure 4-13
Be sure to carefully pack the area’s of the panel that are visible
during normal use.
.
4.3.9LCD removal
Figure 4-12 Vesa spacer
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 Figure 4-1
•Pay special attention not to damage the EMC foams on the
SSB shields. Ensure that EMC foams are mounted
correctly.
and Figure 4-2.
Figure 4-13 LCD panel
2011-Feb-18
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Service Modes, Error Codes, and Fault Finding
5.Service Modes, Error Codes, and Fault Finding
Index of this chapter:
5.1 Service Modes
5.2 Service Tools
5.3 Software Upgrading
5.4 Error Codes
5.5 Fault Finding and Repair Tips
5.1Service Modes
The Customer Service Mode (CSM) is used for communication
between the call centre and the customer, while the Service
Alignment Mode (SAM) offers several features for the service
technician. The Standard Default Mode (SDM) creates a predefined setting.
This chassis also offers the option of using ComPair, a
hardware interface between a computer and the TV chassis. It
offers the abilities of structured troubleshooting, error code
reading, and software version read-out for all chassis.
5.1.1Service Default Mode (SDM)
Purpose
•To create a pre-defined setting, to get the same
measurement results as given in this manual
•To start the blinking LED procedure where only Layer 2
errors are displayed (see also Table 5-1
).
Figure 5-1 CSM Menu [1/3]
How to Activate
Use the standard RC transmitter and key in the code “062596”,
directly followed by the “MENU” button.
How to Exit
Switch the set to STANDBY.
5.1.2Customer Service Mode (CSM)
Purpose
The Customer Service Mode shows error codes and
information on the TV's operation settings.The call centre can
instruct the customer (by telephone) to enter CSM in order to
identify the status of the set.This helps the call centre to
diagnose problems and failures in the TV set before making a
service call.
The CSM is a read-only mode; therefore, modifications are not
possible in this mode.
How to Activate CSM
Key in the code “123654” via the standard RC transmitter.
Note: Activation of the CSM is only possible if there is no (user)
menu on the screen!
Figure 5-2 CSM Menu [2/3]
Figure 5-3 CSM Menu [3/3]
2011-Feb-18
How to Navigate
Toggling between menus CSM1, -2 and -3 can be done by
means of the “CURSOR-DOWN/UP” knob.
CSM1
•Set Type Philips Model type number (16 characters
maximum)
•Production code Displays the production serial number of
the TV. Note that if an NVM is replaced or is initialized after
corruption, this production code has to be re-written to
NVM. ComPair will foresee a in possibility to do this.
Service Modes, Error Codes, and Fault Finding
10000_036_090121.eps
091118
TO
UART SERVICE
CONNECTOR
TO
UART SERVICE
CONNECTOR
TO
I2C SERVICE
CONNECTOR
TO TV
PC
HDMI
I
2
C only
Optional power
5V DC
ComPair II Developed by Philips Brugge
RC out
RC in
Optional
Switch
PowerModeLink/
Activity
I
2
C
ComPair II
Multi
function
RS232 /UART
EN 17RAM1.0L LA5.
•Installation date Installation date.
•Option code Displays the option code.
•Codes Displays the latest 5 error codes status.
Refer to 5-1 Error codes
.
•SSB Displays the 12NC of the SSB (Small Signal Board).
•Display Displays the 12NC of the display (LCD Panel).
•PSU Displays the 12NC of PSU (Power Supply Unit).
CSM2
•Current Main SW Main software version.
•Standby SW Standby software version.
•SW version of other uP Other uP software version if
applicable.
•NVM-version NVM version.
CSM3
•Signal Quality/Present Digital percentage and analog
Yes/No.
•Child lock Child lock active/non-active.
•HDCP keys Detect and display HDCP keys: Valid/Nonvalid.
•HDMI audio format input stream Indication of HDMI
audio input stream format e.g. Dolby TrueHD, DTS-HD
Master Audio, MPCM.
•HDMI video format input stream Indication of HDMI
video input stream format e.g. 576i50Hz, 576p50Hz,
720p50Hz, 1080i50Hz, 1080p50Hz.
How to Exit CSM
Press “MENU” on the RC-transmitter.
5.1.3 Service Alignment Mode (SAM)
How to enter
To enter the factory mode, use the following method:
•Press the following key sequence on the remote control
transmitter: “062596” directly followed by the “INFO”
button.
After entering the service alignment mode, the following screen
is visible (refer to Figure 5-4
).
5.2Service Tools
5.2.1ComPair
Introduction
ComPair (Computer Aided Repair) is a Service tool for Philips
Consumer Electronics products. and offers the following:
1. ComPair helps to quickly get an understanding on how to
repair the chassis in a short and effective way.
2. ComPair allows very detailed diagnostics and is therefore
capable of accurately indicating problem areas. No
knowledge on I
because ComPair takes care of this.
3. ComPair speeds up the repair time since it can
automatically communicate with the chassis (when the uP
is working) and all repair information is directly available.
4. ComPair features TV software upgrade possibilities.
Specifications
ComPair consists of a Windows based fault finding program
and an interface box between PC and the (defective) product.
The ComPair II interface box is connected to the PC via an
USB cable. For the TV chassis, the ComPair interface box and
the TV communicate via a bi-directional cable via the service
connector(s).
The ComPair fault finding program is able to determine the
problem of the defective television, by a combination of
automatic diagnostics and an interactive question/answer
procedure.
How to Connect
This is described in the chassis fault finding database in
ComPair.
2
C or UART commands is necessary,
18930_203_100310.eps
Figure 5-4 Example of SAM
How to Navigate
The up/down cursor keys can be used to navigate through the
menu, while with the Left/Right cursor the values can be
changed.
How to Store
Choose “DO”, and press the “OK” button.
How to go one level up in the menu
Press the MENU button.
How to Exit
Go up in the menu to the root and switch the set to STANDBY.
100310
Figure 5-5 ComPair II interface connection
Caution: It is compulsory to connect the TV to the PC as
shown in the picture above (with the ComPair interface in
between), as the ComPair interface acts as a level shifter. If
one connects the TV directly to the PC (via UART), ICs will be
damaged!
How to Order
ComPair II order codes:
•ComPair II interface: 3122 785 91020.
•Programming software can be downloaded from the Philips
Service portal.
•ComPair UART interface cable for RAM1.1x xx.
3138 188 75051.
Note: While having problems, contact the local support desk.
2011-Feb-18
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5.3Software Upgrading
5.3.1Introduction
Philips continuously tries to improve its products, and we
recommend that you update the TV software when updates are
available. Software update files can be obtained from your
dealer or can be downloaded from the following website:
http://www.philips.com/support
Preparing a portable memory for software upgrade
You require the following:
1. A personal computer connected to the Internet.
2. An archive utility that supports the ZIP-format (e.g.
“WinZip” for Windows or “Stufflt” for Mac OS).
3. A USB flash drive (preferably empty).
Note:
1. Only FAT/DOS-formatted flash drives are supported.
2. Only use software update files that can be found on the
Philips Service Portal.
5.3.2 Check the current TV software version
Before starting the software upgrade procedure, it is advised to
check the current TV software version:
1. Press the “Menu” button on your remote control.
2. Select “Setup” and press “OK”, then select [Software
update] > [Current software].
If the current software version of your TV is the same as the
latest update file found on the Philips Service Portal, it is not
necessary to update the TV software.
Service Modes, Error Codes, and Fault Finding
Figure 5-6 Update the TV software 1
5.3.3Download the latest software
1. Point your web browser to the Philips Service Portal.
2. Find information and software related to your TV.
3. Select the latest software update file and download it to
your PC.
4. Insert a USB flash drive into one of the USB ports of your
PC.
5. Decompress the downloaded ZIP file and copy the
“autorun.upg” to the root directory of the USB flash drive.
5.3.4Update the TV software
1. Power off your TV and disconnect all memory devices.
2. Insert the USB flash drive that contains the software
update file.
3. Switch on your TV, and TV will display the Main Menu upon
detection of USB portable.
4. Select [Setup] and press OK. See Figure 5-6Note: If the USB flash drive is not detected after power up,
disconnect it and re-insert it.
5. Select [Software update] > [Local updates] and press OK.
See Figure 5-7
and Figure 5-8.
6. When prompted, select [Cancel] or [OK] and press OK.
See Figure 5-9
.
7. To proceed, In next menu select [Start] and press OK to
start software updates. See Figure 5-10
.
8. Upgrading will now begins and the status of the updating
progress will be displayed. See Figure 5-11
9. When the TV software is updated, the TV automatically
restarts and the TV starts up with the new software.
Figure 5-7 Update the TV software 2
.
Figure 5-8 Update the TV software 3
.
2011-Feb-18
Figure 5-9 Update the TV software 4
Service Modes, Error Codes, and Fault Finding
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Figure 5-10 Update the TV software 5
EN 19RAM1.0L LA5.
Note:
•Do not remove the USB flash drive during the software
update.
•If a power failure occurs during the update, do not remove
the USB flash drive from the TV. The TV will continue the
software update as soon as power comes back.
•If an error occurs during the update retry the procedure or
contact your dealer.
•We do not recommend downgrading to an older version.
•Once the upgrade is finished, use your PC to remove the
TV software from your USB portable memory.
5.4Error Codes
The error code buffer contains all errors detected since the last
time the buffer was erased. The buffer is written from left to
right. When an error occurs that is not yet in the error code
buffer, it is displayed at the left side and all other errors shift one
position to the right.
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!
Error blinking
in SDMin CSMspontaneous
Defective board
--layer 1platform supply
layer 2layer 1layer 1display supply/inverter
layer 2layer 1-SSB
5.5.2Tuner
Attention: In case the tuner is replaced, always check the tuner
options.
2011-Feb-18
EN 20RAM1.0L LA5.
5.5.3 Power failure
For trouble shooting, following reference voltages are given:
4. Check whether U36 input/output of video signal is nor mal.
5. Check whether J10,J11 video signal is normal
6. Is Connection of J10 and J11 FFC Cable OK?
1. IsSSB J1-PIN9, J2-Pin1, 2 Voltage 12V available?
2. Check if J1-Pin 2-2.5~3.3V(Hi Level) is available
3. Check if J2, Pin 5-2.5~3.3V(Hi Level) is available
Set is in Component video mode, no image
Ye s
EN 23RAM1.0L LA5.
No
No
Ye s
No
Ye s
No
Figure 5-14 Trouble shooting diagram - set is in Component video mode, no image
18930_216_100310.eps
100310
2011-Feb-18
EN 24RAM1.0L LA5.
No
No
No
No
Ye s
Ye s
Ye s
Ye s
Start
LED is lighted
1. Is Power Core available?
2. IsSSB J1 - Pin 6, 7, 8- 5V available?
3. IsSSB J3 - Pin 4-0~0.8V (Low level) available?
4. IsSSB J2 - Pin 9-0~0.8V (Low level) available?
LED ON to OFF
1. IsSSB J3 Pin 4-2.5~3.3V (Hi level) available?
Isbacklight on?
Is Display Normal?
END
1. HDMI Cable is OK?
2. Check whether J2 -Pin 6 PWM is normal.
3. Is P8/P9 video input signal normal?
4. Check whether U36 input/output of video signal is nor mal.
5. Check whether J10,J11 video signal is normal
6. Is Connection of J10 and J11 FFC Cable OK?
1. IsSSB J1-PIN9, J2-Pin1, 2 Voltage 12V available?
2. Check if J1-Pin 2-2.5~3.3V(Hi Level) is available.
3. Check if J2, Pin 5-2.5~3.3V(Hi Level) is available.
18930_217_100310.eps
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Set is in HDMI mode, no image
Service Modes, Error Codes, and Fault Finding
Figure 5-15 Set is in HDMI mode, no image
2011-Feb-18
DC/DC converter
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
The voltage is about +12V while power switch on
1. J1/J2 connection good
2. Check power board
The voltage is about +5V while power switch on
1. Check Q27-Gate B
No
No
No
No
No
No
No
No
No
No
No
Start
J1 PIN6, 7, 8
J1 PIN 9, J2 PIN 1/2
The voltage is about +5V
1. Check power board
2. Check power cable connection J1
Q28 PIN 7, 8
U4 PIN 5, 6
The voltage is about +3.3V
1. Check U4 PIN2 EN
U2 PIN 5, 6
The voltage is about +1.0V
U3 PIN 3
The voltage is about +1.2V
U1 PIN2,4
The voltage is about +1.8V
U38 PIN 2, 4
The voltage is about +3.3V
U9, U39 PIN 3
The voltage is about +5V
T CON-U35 PIN 3
The voltage is about +3.3V
T CON-U32 PIN2
The voltage is about +12V
18930_218_100310.eps
Service Modes, Error Codes, and Fault Finding
EN 25RAM1.0L LA5.
Figure 5-16 DC/DC converter [1/2]
2011-Feb-18
EN 26RAM1.0L LA5.
No
No
No
No
No
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
T CON-U35 PIN 2,4
The voltage is about +1.8V
T CON-R556
The voltage is about +16V
END
T CON-D24 PIN 3
T CON-R587
The voltage is about +27.1V
The voltage is about -5V
T CON-L8
The voltage is about +8V
18930_219_100310.eps
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Service Modes, Error Codes, and Fault Finding
Figure 5-17 DC/DC converter [2/2]
2011-Feb-18
DDC reading
No
No
Ye s
Ye s
Ye s
Start
Analog DDC OK?
Support DDC1/2B
1. VGA cable ok?
2. Check signal (U6 to PIN5, 6)
3. Check U6- PIN8 5 V
4. Is input signal compliant to protocol?
HDMI DDC OK?
Support DDC1/2B
1. HDMI cable ok?
2. Check signal (U15 to Pin5, 6)
3. Check signal (U16 to Pin5, 6)
4. Is input signal compliant to protocol?
END
18930_220_100310.eps
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Service Modes, Error Codes, and Fault Finding
EN 27RAM1.0L LA5.
Figure 5-18 DDC reading
2011-Feb-18
EN 28RAM1.0L LA5.
Ye s
Ye s
Ye s
Ye s
No
No
No
No
Start
Input signal good?
1. Check Audio source
2. Check the player of source
Output Source OK?
1. Check Speaker
2. Audio Output of J6 Audio Signal
Check amplifier OK?
END
Check signal correct?
1. Check MT8222 Audio In/Out
2. U37 AUDIO In/Out
1. Check U23 Audio Signal In/OUT
18930_221_100310.eps
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No audio
Service Modes, Error Codes, and Fault Finding
2011-Feb-18
Figure 5-19 No audio
6.Alignments
Alignments
EN 29RAM1.0L LA6.
Index of this chapter:
6.1 General Alignment Conditions
6.2 Hardware Alignments
6.3 Software Alignments
6.4 Display Option Settings
6.5 Reset of Repaired SSB
Note: The Service Alignment Mode (SAM) are described in
chapter 5. Service Modes, Error Codes, and Fault Finding
Menu navigation is done with the CURSOR UP, DOWN, LEFT
or RIGHT keys of the remote control transmitter.
6.1General Alignment Conditions
Perform all electrical adjustments under the following
conditions:
•Power supply voltage: 120 - 230 V
•Connect the set to the mains via an isolation transformer
with low internal resistance.
•Allow the set to warm up for approximately 15 minutes.
•Measure voltages and waveforms in relation to correct
ground (e.g. measure audio signals in relation to
AUDIO_GND).
Caution: It is not allowed to use heatsinks as ground.
•Test probe: R
•Use an isolated trimmer/screwdriver to perform
alignments.
6.1.1Alignment Sequence
Set the correct options:
•In SAM, select “Options” and then “Option numbers”
•Fill in the option numbers for “Group 1” and “Group 2”
according to the set sticker (see also section 6.4 Display
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 stand to standby.
Warm the set up for >15 minutes.
> 10 M, Ci < 20 pF.
i
, 50 10 Hz.
AC
•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).
•DVB-T models: a DVB-T signal with the following
specifications:
.
6.3.1White Point
- frequency: 546.00 PID
- video: 0B 06 PID
- PCR: 0B 06 PID
- Audio: 0B 07.
•Choose “TV menu”, “TV Settings” and then “Picture” and
set “Smart Picture” to “Vivid” mode.
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” value to “240” for HDMI source.
– “Green BL offset” value to “240” for HDMI source.
– “Red BL offset” value to “0” for VGA source.
– “Green BL offset” value “0” for VGA source.
In case you have a colour analyser:
•Measure with a calibrated contactless (max. 25 mm) 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
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.
). Tolerance: dx:
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 “RGB Align” and go to one of the sub menus.
The alignments are explained below.
The following item can be aligned:
•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
Table 6-1 White D alignment values
ValueCool (11000K)Normal (9000K)Warm (6500K)
x0.2760.2870.313
y0.2820.2960.329
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.
•Select a “COLOUR TEMPERATURE” (e.g. “COOL”,
“NORMAL”, or “WARM”).
•Set the White point “RED”, “GREEN” and “BLUE” default
values according to the values in Table 6-2
•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.
.
2011-Feb-18
EN 30RAM1.0L LA6.
Table 6-2 White tone default settings 32" & 42" Dali sets
(3xxx series)
White Tone32"42"Black level offset
Colour TempRGBRGBR G B
Normal170 158 160 170 158 160 240240240
Cool162 155 170 162 155 170 240240240
Warm170 148 120 170 148 120 240240240
6.4Display Option Settings
Table 6-3 Display code overview
CTN_ALT BOM#Panel TypeDisplay code in SAM
32PFL3405/77LGD LC320WUY-SCA1-8R1008
32PFL3415/77LGD LC320WUY-SCA1-8R1008
32PFL3425/77LGD LC320WUY-SCA1-8R1008
32PFL3605/77LGD LC320WUY-SCA1-8R1008
32PFL3615/77LGD LC320WUY-SCA1-8R1008
32PFL3625/77LGD LC320WUY-SCA1-8R1008
42PFL3605/77LGD LC420WUY-SCA1-7R1007
42PFL3615/77LGD LC420WUY-SCA1-7R1007
42PFL3625/77LGD LC420WUY-SCA1-7R1007
Alignments
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.
2011-Feb-18
7.Circuit Descriptions
18930_210_100310.eps
100310
MAIN
POWER
S UPPLY
BLOCK
LCD PANEL
(1920 × 1080 )
S c a ler ch ip
MTK
MT8222AMMU for FHD
Ana log
Tu ner
12 V
DC
M ini-LVDS
P/I boa rd
5 V
DC
DDR2 256M b × 2
NT5TU32M 16 CG-25C
A u dio Amp
Class-D
(TPA3101D 2)
DC/DC
conversion
M a in b o a rd
BL boost
POK
PWM
BL on/off
Compos ite
S-Vid eo
HDMI2
L
R
CVBS
Au dio out
SPI FLASH (4MB)
MX25L3 205DM
3V 3
EDIDEDIDEDID
1V8
1V2
Power
Analogue Audio
Video &
control signal
5V
5V0
IF
R/L
H/P ou t
(Op tional)
S AW
Filte r
S AW
Filte r
IF Decode r
TD A9 885
CVBS
SIFV IF
SIF
D-SUB
Component
B/L INVERTER
D
USB
-SUB
Au dio in
Component
Au dio in
Compos ite
S-Vid eo
Au dio in
X1X2X1
TCON
TL2428MC
HDMI1
EEPRO M
24C04
EEPROM
24C3 2
KEY PAD
I.R. REC EIVER
Audio switch
HEF4052
Circuit Descriptions
EN 31RAM1.0L LA7.
Index of this chapter:
7.1 Introduction
7.2 Power Architecture
7.3 MT8222 Video/Audio processor
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
necessary, you will find a separate drawing for clarification.
7.1Introduction
The RAM1.0L LA chassis is using the MT8222 video and audio
processor.
). Where
7.1.1Implementation
Key components of this chassis are:
•MT8222 scaler
•HFT-8-13F2 (Argentina) tuner
•M3953M/M9370M (Argentina) saw filter
•TDA9885TS IF demultiplexer
•TPA3101D2 audio amplifier
•TL2428MC T-CON IC
7.1.2RAM1.0L LA Architecture Overview
For details about the chassis diagrams refer to
chapter 10. Circuit Diagrams and PWB Layouts
of the RAM1.0L LA architecture can be
found in Figure 7-1
.
. An overview
Figure 7-1 Architecture of RAM1.0L LA
2011-Feb-18
EN 32RAM1.0L LA7.
19000_200_100629.eps
100629
DC - DC CONVERSIONTCON
DDR2Scaler
Audio Amplifier
INPUT/OUTPUT CONNECTORS
Service
Connector
TUNER
7.1.3SSB Cell Layout
Circuit Descriptions
Figure 7-2 SSB layout cells (top view)
2011-Feb-18
7.2Power Architecture
19000_201_100629.eps
100629
Power
Board
U4
AP1534SG
12VIN
U2
Q28_1
MOS_SSG4953
AP1534SG
IR/LED BD
BS0V1BSV5
DVDD10
3V3SB
U21
RESET_MAX809STRG
TJ3965D
U3
1V2SB
AVDD33_CVBS
AVDD33_XTAL
AVDD33_ADAC
AVDD33_USB
AVDD33_AADC
AVDD33_LVDS
AVDD33_SIF AVDD33_DIG
AVDD33_REFP_AADC
AVDD33_VGA
AVDD33_HDMI
FB18
3V3SW
U1
AP1084KL
1V8SW
U26
DRV602PWR
U20
AT24C32CN
AVDD12_PLL
AVDD12_LVDS
AVDD12_USB
AVDD12_DIG_RGB
AVDD12_MEMPLL
AVDD12_RGB
AVDD12_VPLL
AVDD12_HDMI
U22
DDR_NT5TU32M16CG
VCC2IO_1
VCC2IO_2
VCC2IO_3
RVREF0
5VIN
5VSB
12 VSW
MOS_RSS075P03
Q22
PANEL_VDD
FB16
5VSW
U8Q28_2
U7
USB_TPS2041BDR
D5
BAT54C
VGA_5V
U6
MOS_SSG4953
AT24C02BN
PI5C3257QE
Audio_SW_CD
4052BNSR
U5
AZ7805T
U9
TUNER_VCC_5V
U23
AUDIO_AMP_TPA3101D2PHPR
MAX17113ETL
U34
U32
RT8250GSP
H_VDD
FB18
VGL
VGH
U35
Gamma_MAX9668
AP1117EL
1V8TC
TL2428_V18
3V3TC
16VTC
U30
I ≈ 725 mA
I ≈ 2.16 A
I ≈ 843 mA
TL2428_V18
T1
HFT-8-13F2
FB5
FB16
U10
TDA9885TS
GPIO25
GPIO5
R233
R266
F2
125V/3A
C87
10uf/10V
R236
R235
+
CE16
100uf/25V
+
CE17
100uf/25V
F3
63V/2A
R232
R224
R231
R266
R237
R228
R226
+
CE8
220uf/25V
+
CE26
220uf/25V
R225
+
CE7
220uf/25V
R234
F1
125V/3A
+
CE4
220uf/25V
+
CE7
220uf/25V
C87
10uf/10V
+
CE3
220uf/25V
R227
+
CE6
220uf/25V
R229
+
CE7
220uf/25V
R230
+
CE27
100uf/25V
Refer to figure Figure 7-3 for the power architecture of this
platform. For trouble shooting, refer to section 5.5.3 Power
failure.
Circuit Descriptions
EN 33RAM1.0L LA7.
Figure 7-3 Power Architecture RAM1.0L LA platform
2011-Feb-18
EN 34RAM1.0L LA7.
19000_202_100629.eps
100629
PRST#
U19
MX25L3205DM2I-12G
NT5TU32M16CG-25C
Amp R+
Audio Amp
U23
TPA3101D2P HPR
U22
DATA
Amp L-
Amp L+
Amp R-
IR_
DATA
ADIN 0
TDA9 885TSV5
U10
Y1
4 MHz
REF
LED 2
ADIN 0
AT24C32CN- SH-T
EEPROM
U29
TCON
LVDS
U36
TL24 28MC
VIF(K3953M)
SAW1
VIF
SIF(M3970M)
SAW2
SIF
TCVBS -N&P
AT24C02
AT24C02
VGA EDID
EEPROM
Data Bus 2
Data Bus 1
OPWR0 5V H1
HDMI DDC I2C
T-CON I2C
HDMI DDC I2C
OPWR0 5V H2
U16
U15
U6
RGB & H/V SYNC
oooo
EEPROM
EEPROM
AV1 L/R IN
VGA L/R IN
VGA I2CVGA I
2
C
SC1 IN
SY1 IN
AV1 IN
Y1 IN
YPBPR1 L/R IN
PR1 IN
PB1 IN
AL2 & AR2 OUT
MT8222
U17
Tuner
Line OUT
VGA Audio Input
AV1 Input
CVI-1 Input
VGA Input
PB2 IN
Y2 IN
YPBPR2 L/R IN
PR2 IN
CVI-2 Input
HDMI1
HDMI2
USB
DRV602PWR
U26
LINE OUT R/ L
CS4344
U37
I2S DAC
IF Tuner
AGC Tuner
Tuner SCL/SDA
U7
Channel Switc h
74HC4052PW
Channel 2
Channel 3
Channel 1
USB DM
Debug PORT
RX
TX
USB DP
Y2
27MHz
KEY BD
Reset
Circuit
LCD PANEL
T CON
SIGNAL
DDR
Flash
Y6
CSTCE10M0G55
IR BD
I2S
10MHz
DAC L
DAC R
T-CON I2C
Scaler UART
7.3MT8222 Video/Audio processor
Refer to figure Figure 7-4 for the power architecture of this
platform.
Circuit Descriptions
7.3.1Signal paths
RGB
Analogue RGB signals are transferred by the MT8222 to a
digital signal by the internal A/D converter. The MT8222
generates an LVDS signal to the TL2428 on-chip TCON which
drives the LCD display.
HDMI
HDMI signals are further processed digitally by the MT8222.
The MT8222 generates an LVDS signal to the TL2428 on-chip
TCON which drives the LCD display.
Component Input
Component signals are processed by the MT8222. The
MT8222 generates an LVDS signal to the TL2428 on-chip
TCON which drives the LCD display.
Audio is separately processed by the MT8222 and further
processed by the CS4344 and then the audio amplifier.
RF Input
RF input signals are demodulated by the TDA9885 IF
demodulator and further processed by the MT8222. The signal
is then split into an video and an audio part.
2011-Feb-18
Figure 7-4 MT8222 Video/Audio system application
The video signal is further processed by the MT8222 which
generates an LVDS signal to the TL2428 on-chip TCON which
drives the LCD display.
The audio signal is further processed by the MT8222 and split
into two parts. One part drives the Stereo Line Driver “AUDIO
OUT” chain, the other part drives the CS4344 and the audio
amplifier.
8.IC Data Sheets
18930_300_100308.eps
100308
Block diagram
Pinning information
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
TDA9885T
n.c.
VIF2
OP1
FMPLL
DEEM
AFD
DGND
AUD
TOP
SDA
SCL
SIOMAD
SIF2
SIF1
OP2
AFC
V
P
VPLL
AGND
CVBS
VAGC
REF
TAGC
n.c.
DIGITAL VCO CONTROL AFC DETECTOR
RC VCO
VIF-PLL
VIF-AGC
TUNER AGC
SUPPLYSIF AGC
AUDIO PROCESSING
AND SWITCHES
NARROW-BAND
FM-PLL DEMODULATOR
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER
AND AM DEMODULATOR
SOUND TRAPS
4.5 to 6.5 MHz
TAGC
C
VAGC(pos)
C
AGC(neg)
C
BL
VAGC
(1)
TOP
14
VPLL
19121561 9
4
10
11
12
18
20
2
1
17
8
5
6
external reference signal
or 4 MHz crystal
REFAFC
AUD
CVBS
audio output
video output: 2 V (p-p)
[1.1 V (p-p) without trap]
C
AF
SIOMAD
SDASCL
MAD
V
P
C
AGC
13
n.c.
AGND
7
DGND
OUTPUT
PORTS
I
2
C-BUS TRANSCEIVER
223
LLPMF2PO1PO
DEEM
AFD
sound intercarrier output
and MAD select
FM-PLL
filter
VIF-PLL
filter
de-emphasis
network
VIF2
n.c.
24
23
SIF2
SIF1
TDA9885
This section 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).
8.1Diagram B05, TDA9885 (IC U10)
IC Data Sheets
EN 35RAM1.0L LA8.
Figure 8-1 Internal block diagram and pin configuration
2011-Feb-18
EN 36RAM1.0L LA8.
18870_300_100211.eps
100616
Block diagram
CVBS / SV
(8 ×)
Analog Front End
ADC
3D TVD
8032
Main Path
(Customer)
External
Switches
YPbPr
(2 ×)
VGA
ADC
ADC
ADC
HDTVD
VGAD
MDDi
PIP Path
DS
HDMI × 3
Digital Path
MDDi
DS
OSD
Control Signal (GPIO,...)
LVDS
LVDS
Tx
Merge
Gamma
Dithering
Color
Color
US
US
DSP
DRAM
MU
X
8.2Diagram B07, MT8222TMMU/A (IC U17)
IC Data Sheets
Figure 8-2 Internal block diagram
2011-Feb-18
IC Data Sheets
18870_301_100211.eps
100305
Pinning information
EN 37RAM1.0L LA8.
Figure 8-3 Pin configuration
2011-Feb-18
EN 38RAM1.0L LA8.
18930_301_100309.eps
100309
Block diagram
Pinning information
32
5
27
10
25
12
PVCCR
RINP
PGNDR
AGND
ACC
V
CN
E
TUM
P
Y
BV
P
TUOR
PTUO
L
C
N
C
N
NRSB
NLS
B
NTUOL
NTUO
R
FLU
AT
GE
R
V
NW
O
D
T
UHS
DNGA
CN
CSOR
P
RSB
P
LSB
PTUOR
NT
U
O
R
N
T
UOL
PTUOL
PVCCR
Exposed
RINN
NC
NC
NC
NC
PGNDR
LINP
VCLAMPR
LINN
VCLAMPL
NC
PGNDL
GAIN0
PGNDL
GAIN1
PVCCL
MSTR/SLV
PVCCL
SYNC
33
4
28
9
26
11
34
3
29
8
35
2
30
7
36
1
31
6
44
17
38
23
43
18
37
24
45
16
39
22
46
15
40
21
47
14
41
20
48
13
42
19
Biases
and
References
Startup
Protection
Logic
VREGok
RINP
RINN
Ramp
Generator
ROSC
VCCok
AVCC
VREG
PWM
Logic
Gain
Control
Gain
Control
LINP
LINN
SHUTDOWN
VBYP
VBYP
MSTR/SLV
PWM
Logic
SYNC
AVCC
AVCC
AVCC
Gain
Control
GAIN0
GAIN1
8
TAdj.
MUTE
FAULT
VREG
AGND
VBYP
VBYP
VREG
VBYP
VClamp
Gen
PVCCR
Gate
Drive
Gate
Drive
VClamp
Gen
Gate
Drive
Thermal
SC
Detect
PVCCR
Gate
Drive
BSLN
VCLAMPL
PVCCL
PVCCL
BSLP
LOUTN
BSRN
VCLAMPR
PVCCR
PVCCR
ROUTN
BSRP
ROUTP
PGNDR
PVCCL
PVCCL
PGNDL
LOUTP
Gain
Gain
Gain
Gain
TLL Input
Buffer
TLL Input
Buffer
8.3Diagram B10, TPA3101D (IC U23)
IC Data Sheets
2011-Feb-18
Figure 8-4 Internal block diagram and pin configuration