Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
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.
Top Control Panel(E) 6364
IR & LED Panel(J) 6565
LCD Interface Panel(TT) 6667
8. Alignments69
9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets73
Abbreviation List78
IC Data Sheets81
10. Spare Parts List85
11. Revision List89
Published by WS 0769 BU CD Customer ServicePrinted in the NetherlandsSubject to modificationEN 3122 785 17161
EN 2LC7.1E LB1.
Technical Specifications, Connections, and Chassis Overview
1.Technical Specifications, Connections, and Chassis Overview
Index of this chapter:
1.1 Technical Specifications
1.2 Connection Overview
1.3 Chassis Overview
Notes:
•Figures can deviate due to the different set executions.
•Specifications are indicative (subject to change).
1.1Technical Specifications
1.1.1Vision
Display type: LCD
Screen size: 19" (48 cm), 16:9
Resolution (HxV pixels): 1440x900
Dyn. contrast ratio: 1000:1
Min. light output (cd/m
Typ. response time (ms): 5
Viewing angle (HxV degrees): 160x160
Tuning system: PLL
Presets/channels: 100 presets
Tuner bands: VHF, UHF, S, H
TV Colour systems: PAL B/G, D/K, I
Technical Specifications, Connections, and Chassis Overview
1.2Connection Overview
Figure 1-1 Side and rear I/O connections
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270207
EN 3LC7.1E LB1.
Note: The following connector colour abbreviations are used
(acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy=
Grey, Rd= Red, Wh= White, and Ye= Yellow.
1.2.1Side Connections
EXT3: Headphone - Out
Bk - Headphone 32 - 600 ohm / 10 mW rt
EXT3: Cinch: Video CVBS - In, Audio - In
Rd - Audio R 0.5 V
Wh - Audio L 0.5 V
Ye - Video CVBS 1 V
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
/ 75 ohm jq
PP
EXT3: 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 j
PP
/ 75 ohm j
PP
1.2.2Rear Connections
EXT1: Video RGB - In, CVBS - In/Out, Audio - In/Out
21
20
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1
050404
Figure 1-2 SCART connector
1 - Audio R 0.5 V
2 - Audio R 0.5 V
3 - Audio L 0.5 V
4 - Ground Audio Gnd H
/ 1 kohm k
RMS
/ 10 kohm j
RMS
/ 1 kohm k
RMS
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 kohm j
RMS
/ 75 ohm j
PP
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3 j
9 - Ground Green Gnd H
10 - Easylink P50 0 - 5 V / 4.7 kohm jk
11 - Video Green 0.7 V
12 - n.c.
/ 75 ohm 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 ohm j
PP
1 - 3 V: EXT / 75 ohm j
17 - Ground Video Gnd H
18 - Ground FBL Gnd H
19 - Video CVBS 1 V
20 - Video CVBS 1 V
21 - Shield Gnd H
/ 75 ohm k
PP
/ 75 ohm j
PP
EXT2: Video YC - In, CVBS - In/Out, Audio - In/Out
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1
050404
Figure 1-3 SCART connector
1 - Audio R 0.5 V
2 - Audio R 0.5 V
3 - Audio L 0.5 V
4 - Ground Audio Gnd H
/ 1 kohm k
RMS
/ 10 kohm j
RMS
/ 1 kohm k
RMS
5-n.c.
6 - Audio L 0.5 V
7 - C-out 0.7 V
/ 10 kohm j
RMS
/ 75 ohm k
PP
8 - Function Select 0 - 2 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3 j
9-n.c.
10 - Easylink P50 0 - 5 V / 4.7 kohm jk
11 - n.c.
12 - n.c.
13 - n.c.
14 - Ground P50 Gnd H
15 - C 0.7 V
/ 75 ohm j
PP
16 - Status/FBL 0 - 0.4 V: INT
1 - 3 V: EXT / 75 ohm j
17 - Ground Video Gnd H
EN 4LC7.1E LB1.
Technical Specifications, Connections, and Chassis Overview
18 - Ground FBL Gnd H
19 - Video CVBS 1 V
20 - Video CVBS/Y 1 V
21 - Shield Gnd H
/ 75 ohm k
PP
/ 75 ohm j
PP
Service Connector (UART)
1 - UART_TX Transmit k
2 - Ground Gnd H
3 - UART_RX Receive j
Aerial - In
-- IEC-type (EU) Coax, 75 ohm D
Service Connector (ComPair)
1 - SDA-S I
2-SCL-S I
2
C Data (0 - 5 V) jk
2
C Clock (0 - 5 V) j
3 - Ground Gnd H
HDMI 1 & 2: Digital Video, Digital Audio - In
19
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Figure 1-4 HDMI (type A) connector
1.3Chassis Overview
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 - n.c.
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
EXT4: Cinch: Video YPbPr - In, Audio - In
Gn - Video Y 1 V
Bu - Video Pb 0.7 V
Rd - Video Pr 0.7 V
Wh - Audio L 0.5 V
Rd - Audio R 0.5 V
/ 75 ohm jq
PP
/ 75 ohm jq
PP
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
MAIN SUPPLY UNIT
SMALL SIGNAL
B
BOARD
Figure 1-5 PWB/CBA locations
TOP CONTROL
PA NE L
LCD INTERFACE
PA NE L
SIDE I/O PANEL
IR & LED
PANEL
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Safety Instructions, Warnings, and Notes
2.Safety Instructions, Warnings, and Notes
EN 5LC7.1E LB2.
Index of this chapter:
2.1 Safety Instructions
2.2 Warnings
2.3 Notes
2.1Safety 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 Mohm and 12 Mohm.
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.
2.2Warnings
•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.
2.3.2Schematic 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 kohm).
•Resistor values with no multiplier may be indicated with
either an "E" or an "R" (e.g. 220E or 220R indicates 220
ohm).
•All capacitor values are given in micro-farads (μ= x10
nano-farads (n= x10
•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 in the Spare Parts
List. Therefore, always check this list when there is any
doubt.
2.3.3BGA (Ball Grid Array) ICs
Introduction
For more information on how to handle BGA devices, visit this
URL: www.atyourservice.ce.philips.com (needs subscription,
not available for all regions). After login, select “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,
which is coupled to the 12NC. For an overview of these profiles,
visit the website www.atyourservice.ce.philips.com (needs
subscription, but is not available for all regions)
You will find this and more technical information within the
"Magazine", chapter "Repair downloads".
For additional questions please contact your local repair help
desk.
-9
), or pico-farads (p= x10
-12
-6
),
).
•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.
2.3Notes
2.3.1General
•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 (see chapter 5) 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).
2.3.4Lead-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 Philips SAC305 with order
code 0622 149 00106. 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.
EN 6LC7.1E LB3.
2.3.5Alternative BOM identification
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.
Directions for Use
MODEL :
PROD.NO:
2.3.6Board 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!
2.3.7Practical Service Precautions
•It makes sense to avoid exposure to electrical shock.
•Always respect voltages. While some may not be
32PF9968/10
AG 1A0617 000001
Figure 2-1 Serial number (example)
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.
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.
MADE IN BELGIUM
220-240V 50/60Hz
~
VHF+S+H+UHF
BJ3.0E LA
S
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130606
3.Directions for Use
You can download this information from the following websites:
•Figures below can deviate slightly from the actual situation,
due to the different set executions.
•Follow the disassemble instructions in described order.
Figure 4-1 Cable dressing
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EN 8LC7.1E LB4.
Mechanical Instructions
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).
•Aluminium service stands (created for Service).
Note: the aluminium service stands can only be used when the
set is equipped with so-called “mushrooms”. Otherwise use the
original stand that comes with the set.
4.2.1Foam Bars
1
Required for sets
1
42"
4.3Assy/Panel Removal
4.3.1Rear Cover
Warning: Disconnect the mains power cord before you remove
the rear cover.
Refer to next figure for details.
1. Place the TV set upside down on a table top, using the
foam bars (see part "Service Position").
2. Remove all fixation screws and the stand (if mounted).
3. Release the two fixation clamps [1] by pushing them
inwards.
4. Pull the rear cover in backward direction to remove it. Make
sure that wires and flat foils are not damaged while lifting
the rear cover.
22
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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 “Foam
bars” 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.
4.2.2Aluminium Stands
Figure 4-4 Rear cover removal
4.3.2Top Keyboard Control Panel
Refer to next figure for details.
1. Unplug connector [1].
2. Remove the unit.
3. Release catches that hold the board and remove it.
When defective, replace the whole unit.
1
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Figure 4-3 Aluminium stands
The MkII aluminium stands with order code 3122 785 90690,
can also be used to do measurements, alignments, and
duration tests. The stands can be (dis)mounted quick and easy
by means of sliding them in/out the "mushrooms". The stands
are backwards compatible with the earlier models.
Important: For (older) FTV sets without these "mushrooms", it
is obligatory to use the provided screws, otherwise it is possible
to damage the monitor inside!
Figure 4-5 Top keyboard control panel
Mechanical Instructions
EN 9LC7.1E LB4.
4.3.3Side I/O Panel
Refer to next figure for details.
1. Unplug connector [1].
2. Remove screw [2] and remove the entire module. It hinges
on the right side.
When defective, replace the whole unit.
1
Figure 4-6 Side I/O module
4.3.4IR/LED Panel
Refer to next figure for details.
1. Release clip [1] and remove the board.
2. Unplug connector [2].
When defective, replace the whole unit.
2
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4.3.5Speakers
Refer to next figure for details.
1. Unplug connectors [1].
2. Remove screws [2].
2
1
Figure 4-8 Speakers
4.3.6LCD Interface Board
Refer to next figure for details.
1. Unplug connector [1].
2. Unplug the LVDS connectors [2]. Be careful as they are
very fragile.
3. Remove the screws [3] and take the panel out. It hinges at
the bottom side.
3
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Figure 4-7 IR/LED panel
2
1
1
3
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Figure 4-9 LCD interface board
EN 10LC7.1E LB4.
Mechanical Instructions
4.3.7Main Supply Board
1. Refer to next figure.
2. Unplug all cables.
3. Remove the fixation screws [1].
4. Take the board out (it hinges at the left side).
1
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4.3.8Small Signal Board (SSB)
1. Refer to next figure.
2. Disconnect all cables [1] on the SSB. Be careful not to
damage the fragile LVDS cable [2].
3. Remove the screws [3] that hold the SSB.
4. Remove the screws [4] that hold the CINCH and HDMI
connectors at the connector panel.
5. Lift the SSB from the set.
Figure 4-10 Main supply panel
3
3
3
3
3
2
1
3
3
3
3
Figure 4-11 SSB removal
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Mechanical Instructions
EN 11LC7.1E LB4.
4.3.9LCD Panel
The disassembly method for the LCD panel differs per panel
type, so the following description is generic. The number and
position of screws is panel-specific. Therefore, not all screws
necessarily need to be present!
Refer to next figure for details.
1. Remove the Main Supply Panel from the set as earlier
described.
2. Unplug the connectors from the loudspeakers.
1
2
3. Do NOT forget to unplug the LVDS connector from the
LCD Interface Board. Important: Be careful, as this is a
fragile connector!
4. Remove all other remaining connectors.
5. Remove the screws [1] of the central sub-frame.
6. Lift the entire central sub-frame from the set (incl. SSB, and
Side I/O boards and wiring).
7. The LCD panel can now be lifted from the front cabinet.
1
2
1
2
1
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 "Cable
dressing".
•Pay special attention not to damage the EMC foams.
Ensure that EMC foams are mounted correctly (one is
located above the LVDS connector on the display, between
the LCD display and the metal sub-frame).
Figure 4-12 LCD panel
11
1
2
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EN 12LC7.1E 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 Service Tools
5.4 Error Codes
5.5 The Blinking LED Procedure
5.6 TV Main Software Upgrading
5.7 Fault Finding and Repair Tips
5.1Test Points
In the chassis schematics and layout overviews, the test points
(Fxxx) are mentioned. In the schematics, test points are
indicated with a rectangular box around “Fxxx” or “Ixxx”, in the
layout overviews with a “half-moon” sign.
As most signals are digital, it will be difficult to measure
waveforms with a standard oscilloscope. Several key ICs are
capable of generating test patterns, which can be controlled via
ComPair. In this way it is possible to determine which part is
defective.
Perform measurements under the following conditions:
•Service Default Mode.
•Video: Colour bar signal.
•Audio: 3 kHz left, 1 kHz right.
5.2Service Modes
The Service Mode feature is split into four parts:
•Service Default Mode (SDM).
•Service Alignment Mode (SAM).
•Customer Service Mode (CSM) and Digital Customer
Service Mode (DCSM).
•Computer Aided Repair Mode (ComPair).
SDM and SAM offer features, which can be used by the Service
engineer to repair/align a TV set. Some features are:
•A pre-defined situation to ensure measurements can be
made under uniform conditions (SDM).
•Activates the blinking LED procedure for error identification
when no picture is available (SDM).
•The possibility to overrule software protections when SDM
was entered via the Service pins.
•Make alignments (e.g. white tone), (de)select options,
enter options codes, reset the error buffer (SAM).
•Display information (“SDM” or “SAM” indication in upper
right corner of screen, error buffer, software version,
operating hours, options and option codes, sub menus).
The (D)CSM is a Service Mode that can be enabled by the
consumer. The CSM displays diagnosis information, which the
customer can forward to the dealer or call centre. In CSM
mode, “CSM”, is displayed in the top right corner of the screen.
The information provided in CSM and the purpose of CSM is to:
•Increase the home repair hit rate.
•Decrease the number of nuisance calls.
•Solved customers' problem without home visit.
ComPair Mode is used for communication between a computer
and a TV on I
engineer to quickly diagnose the TV set by reading out error
codes, read and write in NVMs, communicate with ICs and the
uP (PWM, registers, etc.), and by making use of a fault finding
database. It will also be possible to up and download the
software of the TV set via I
ComPair has to be connected to the TV set via the ComPair
connector, which will be accessible through the rear of the set
(without removing the rear cover).
2
C /UART level and can be used by a Service
2
C with help of ComPair. To do this,
5.2.1General
Some items are applicable to all Service Modes or are general.
These are listed below.
Life Timer
During the life time cycle of the TV set, a timer is kept. It counts
the normal operation hours (not the Stand-by hours). The
actual value of the timer is displayed in SDM and CSM in a
decimal value. Every two soft-resets increase the hour by +1.
Software Identification, Version, and Cluster
The software ID, version, and cluster will be shown in the main
menu display of SDM, SAM, and CSM.
The screen will show: “AAAABCD X.YY”, where:
•AAAA is the chassis name: LC71 for analogue range (nonDVB), LC72 for digital range (DVB).
•B is the region indication: E= Europe, A= AP/China, U=
NAFTA, L= LATAM.
•C is the display indication: L= LCD, P= Plasma.
•D is the language/feature indication: 1= standard, H=
1080p full HD.
•X is the main version number: this is updated with a major
change of specification (incompatible with the previous
software version). Numbering will go from 1 - 9 and A - Z.
– If the main version number changes, the new version
number is written in the NVM.
– If the main version number changes, the default
settings are loaded.
•YY is the sub version number: this is updated with a minor
change (backwards compatible with the previous versions)
Numbering will go from 00 - 99.
– If the sub version number changes, the new version
number is written in the NVM.
– If the NVM is fresh, the software identification, version,
and cluster will be written to NVM.
Display Option Code Selection
When after an SSB or display exchange, the display option
code is not set properly, it will result in a TV with “no display”.
Therefore, it is required to set this display option code after
such a repair.
To do so, press the following key sequence on a standard RC
transmitter: “062598” directly followed by MENU and “xxx”,
where “xxx” is a 3 digit decimal value of the panel type: see
column “Panel Code” in table “Option Codes OP1...OP7” (ch.
8). When the value is accepted and stored in NVM, the set will
switch to Stand-by, to indicate that the process has been
completed.
During this algorithm, the NVM-content must be filtered,
because several items in the NVM are TV-related and not SSBrelated (e.g. Model and Prod. S/N). Therefore, “Model” and
“Prod. S/N” data is changed into “See Type Plate”.
In case a call centre or consumer reads “See Type Plate” in
CSM mode, he needs to look to the side/bottom sticker to
identify the set, for further actions.
5.2.2Service Default Mode (SDM)
Purpose
Set the TV in SDM mode in order to be able to:
•Create a pre-defined setting for measurements to be
made.
•Override software protections.
•Start the blinking LED procedure.
•Read the error buffer.
•Check the life timer.
Service Modes, Error Codes, and Fault Finding
s
7
EN 13LC7.1E LB5.
Specifications
Table 5-1 SDM default settings
RegionFreq. (MHz)Default syst.
Europe (except France),
475.25PAL B/G
AP-PAL/-Multi
FranceSECAM L
NAFTA, AP-NTSC61.25 (channel 3) NTSC M
LATAMPAL M
•Set linear video and audio settings to 50%, but volume to
25%. Stored user settings are not affected.
•All service-unfriendly modes (if present) are disabled, since
they interfere with diagnosing/repairing a set. These
service unfriendly modes are:
– (Sleep) timer.
– Blue mute/Wall paper.
– Auto switch “off” (when there is no “ident” signal).
– Hotel or hospital mode.
– Child lock or parental lock (manual or via V-chip).
– Skipping, blanking of “Not favourite”, “Skipped” or
“Locked” presets/channels.
– Automatic storing of Personal Preset or Last Status
settings.
– Automatic user menu time-out (menu switches back/
OFF automatically.
– Auto Volume levelling (AVL).
HHHHH A AA A B CD- X . Y Y
ERR XX XX XX XX XX
O P X X X X X X X X XX X XX X XX X X
SDM
G_16860_030a.ep
Figure 5-2 SDM menu 16:9 picture ratio
HHHHH A A A AB CD - X . Y Y
ERR XX XX XX XX XX
O P X X X X X X X X X X X XX X XX X X
S
G_16860_030b.eps
Figure 5-3 SDM menu 4:3 picture ratio
24050
DM
240507
How to Activate
To activate SDM, use one of the following methods:
•Press the following key sequence on the remote control
transmitter: “062596” directly followed by the MENU button
(do not allow the display to time out between entries while
keying the sequence).
•Short one of the “Service” jumpers on the TV board during
cold start (see Figures “Service jumper”). Then press the
mains button (remove the short after start-up).
Caution: Activating SDM by shorting “Service” jumpers will
override the DC speaker protection (error 1), the General
2
I
C error (error 4), and the Trident video processor error
(error 5). When doing this, the service-technician must
know exactly what he is doing, as it could damage the
television set.
SDMSDM
Menu explanation:
•HHHHH: Are the operating hours (in decimal).
•AAAABCD-X.YY: See paragraph “Service Modes” ->
“General” -> “Software Identification, Version, and Cluster”
for the SW name definition.
•SDM: The character “SDM” to indicate that the TV set is in
Service mode (at top right corner for 16:9 picture ratio, and
at bottom right corner for 4:3 picture ratio).
•ERR: Shows all errors detected since the last time the
buffer was erased. Five errors possible.
•OP: Used to read-out the option bytes. See “Options” in the
Alignments section for a detailed description. Seven codes
are possible.
How to Navigate
As this mode is read only, there is not much to navigate. To
switch to other modes, use one of the following methods:
•Command MENU from the user remote will enter the
normal user menu (brightness, contrast, colour, etc...) with
“SDM” OSD remaining, and pressing MENU key again will
return to the last status of SDM again.
•To prevent the OSD from interfering with measurements in
SDM, command “OSD” (“STATUS” for NAFTA and
LATAM) from the user remote will toggle the OSD “on/off”
with “SDM” OSD remaining always “on”.
•Press the following key sequence on the remote control
transmitter: “062596” directly followed by the OSD/i+
button to switch to SAM (do not allow the display to time out
between entries while keying the sequence).
G_16860_027.eps
260107
Figure 5-1 Service jumper (SSB component side)
On Screen Menu
After activating SDM, the following screen is visible, with SDM
in the upper right corner of the screen to indicate that the
television is in Service Default Mode.
How to Exit
Switch the set to STANDBY by pressing the mains button on
the remote control transmitter or on the television set.
If you switch the television set “off” by removing the mains (i.e.,
unplugging the television), the television set will remain in SDM
when mains is re-applied, and the error buffer is not cleared.
The error buffer will only be cleared when the “clear” command
is used in the SAM menu.
Note:
•If the TV is switched “off” by a power interrupt while in SDM,
the TV will show up in the last status of SDM menu as soon
EN 14LC7.1E LB5.
Service Modes, Error Codes, and Fault Finding
as the power is supplied again. The error buffer will not be
cleared.
•In case the set is in Factory mode by accident (with “F”
displayed on screen), by pressing and hold “VOL-“ and
“CH-” together should leave Factory mode.
5.2.3 Service Alignment Mode (SAM)
Purpose
•To change option settings.
•To display / clear the error code buffer.
•To perform alignments.
Specifications
•Operation hours counter (maximum five digits displayed).
•Software version, error codes, and option settings display.
•Error buffer clearing.
•Option settings.
•Software alignments (Tuner, White Tone, and Audio).
•NVM Editor.
•ComPair Mode switching.
•Set the screen mode to full screen (all contents on screen
are viewable).
How to Activate
To activate SAM, use one of the following methods:
•Press the following key sequence on the remote control
transmitter: “062596" directly followed by the OSD/STATUS/INFO/i+ button (it depends on region which
button is present on the RC). Do not allow the display to
time out between entries while keying the sequence.
•Or via ComPair.
After entering SAM, the following screen is visible, with SAM in
the upper right corner of the screen to indicate that the
television is in Service Alignment Mode.
LLLL L A AAABCD- X. YY
ERR XX XX XX XX XX
O P X X X X X X X X X X X XX X X X X X
C l e a r > Y e s
O p t i o n s >
T u n e r >
R G B A l i g n >
N V M E d i t o r >
C o m p a i r >
S W E V E N T S >
Figure 5-4 SAM menu
Menu explanation:
1. LLLLL. This represents the run timer. The run timer counts
normal operation hours, but does not count Stand-by
hours.
2. AAAABCD-X.YY. See paragraph “Service Modes” ->
“General” -> “Software Identification, Version, and Cluster”
for the SW name definition.
3. SAM. Indication of the Service Alignment Mode.
4. ERR (ERRor buffer). Shows all errors detected since the
last time the buffer was erased. Five errors possible.
5. OP (Option Bytes). Used to read-out the option bytes. See
“Options” in the Alignments section for a detailed
description. Seven codes are possible.
6. Clear. Erases the contents of the error buffer. Select the
CLEAR menu item and press the MENU RIGHT key. The
content of the error buffer is cleared.
7. Options. Used to set the option bits. See “Options” in the
“Alignments” chapter for a detailed description.
8. Tuner. Used to align the tuner. See “Tuner” in the
“Alignments” chapter for a detailed description.
SAM
G_16860_031.eps
260107
9. RGB Align. Used to align the White Tone. See “White
Tone” in the “Alignments” chapter for a detailed
description.
10. NVM Editor. Can be used to change the NVM data in the
television set. See also paragraph “Fault Finding and
Repair Tips” further on.
11. ComPaIr. Can be used to switch the television to “In
Application Programming” mode (IAP), for software
uploading via ComPair. Read paragraph “Service Tools” > “ComPair”. Caution: When this mode is selected without
ComPair connected, the TV will be blocked. Remove the
AC power to reset the TV.
12. SW Events. Only to be used by development to monitor
SW behaviour during stress test.
How to Navigate
•In the SAM menu, select menu items with the MENU UP/
DOWN keys on the remote control transmitter. The
selected item will be indicated. When not all menu items fit
on the screen, use the MENU UP/DOWN keys to display
the next / previous menu items.
•With the MENU LEFT/RIGHT keys, it is possible to:
– Activate the selected menu item.
– Change the value of the selected menu item.
– Activate the selected sub menu.
•When you press the MENU button twice while in top level
SAM, the set will switch to the normal user menu (with the
SAM mode still active in the background). To return to the
SAM menu press the MENU button.
•Command “OSD/i+” key from the user remote will toggle
the OSD “on/off” with “SAM” OSD remaining always “on”.
•Press the following key sequence on the remote control
transmitter: “062596” directly followed by the MENU button
to switch to SDM (do not allow the display to time out
between entries while keying the sequence).
How to Store SAM Settings
To store the settings changed in SAM mode (except the
OPTIONS settings), leave the top level SAM menu by using the
POWER button on the remote control transmitter or the
television set.
How to Exit
Switch the set to STANDBY by pressing the mains button on
the remote control transmitter or the television set.
Note:
•When the TV is switched “off” by a power interrupt while in
SAM, the TV will show up in "normal operation mode" as
soon as the power is supplied again. The error buffer will
not be cleared.
•In case the set is in Factory mode by accident (with “F”
displayed on screen), by pressing and hold “VOL-“ and
“CH-” together should leave Factory mode.
Service Modes, Error Codes, and Fault Finding
s
7
EN 15LC7.1E LB5.
5.2.4 Customer Service Mode (CSM)
Purpose
The Customer Service Mode shows error codes and
information on the TV’s operation settings. A call centre can
instruct the customer (by telephone) to enter CSM in order to
identify the status of the set. This helps them to diagnose
problems and failures in the TV before making a service call.
The CSM is a read-only mode; therefore, modifications are not
possible in this mode.
Specifications
•Ignore “Service unfriendly modes”.
•Line number for every line (to make CSM language
independent).
•Set the screen mode to full screen (all contents on screen
are viewable).
•After leaving the Customer Service Mode, the original
settings are restored.
•Possibility to use “CH+” or “CH-” for channel surfing, or
enter the specific channel number on the RC.
How to Activate
To activate CSM, press the following key sequence on the
remote control transmitter: “123654” (do not allow the display
to time out between entries while keying the sequence).
Upon entering the Customer Service Mode, the following
screen will appear:
1 M O D E L : 3 2 P F L 5 5 2 2 D / 1
2 P R O D S / N : AG1A0712123456
3 S W I D : L C 7 1 E L 1 - 1 . x x
4 O P : X X X X X X X X X X X X X X X X X X X X X
5 C O D E S : X X X X X XX XX X
6 S S B : 3 1 39 127 12341
7 N V M : X X X X X X X X
8 F l a s h D a t a : X X . X X . X X . X X
9 L I F E T I M E R : L L L L L
1 0 T U N E R : W E A K / G O O D / S T R O N G
1 1 S Y S T E M : P A L / N T S C / S E C A M
1 2 S O U N D : M O N O / S T E R E O / N I C A M
1 3H D A U : Y E S / N O
1 4F O R M A T : X X X X X X X X
0
CS M
G_16860_032.ep
21020
Menu Explanation
1. MODEL. Type number, e.g. 19PFL5322/12. (*)
2. PROD S/N. Product serial no., e.g. SV1A0730000008. (*)
3. SW ID. Software cluster and version is displayed.
4. OP. Option code information.
5. CODES. Error buffer contents.
6. SSB. Indication of the SSB factory ID (= 12nc). (*)
7. NVM. The NVM software version no.
8. Flash Data. PQ (picture quality) and AQ (audio quality)
data version. This is a sub set of the main SW.
9. LIFE TIMER. Operating hours indication.
10. TUNER. Indicates the tuner signal condition: “Weak” when
signal falls below threshold value, “Medium” when signal is
at mid-range, and “Strong” when signal falls above
threshold value.
11. SYSTEM. Gives information about the video system of the
selected transmitter (PAL/SECAM/NTSC).
12. SOUND. Gives information about the audio system of the
selected transmitter (MONO/STEREO/NICAM).
13. HDAU. HDMI audio stream detection. “YES” means audio
stream detected. “NO” means no audio stream present.
Only displayed when HDMI source is selected.
14. FORMAT. Gives information about the video format of the
selected transmitter (480i/480p/720p/1080i).
15. HD SW ID. Software version of the 1080p full HD module
(when present).
16. Reserved.
17. Reserved.
18. Reserved.
(*) If an NVM IC is replaced or initialised, the Model Number,
Serial Number, and SSB Code Number must be re-written to
the NVM. ComPair will foresee in a possibility to do this.
How to Exit
To exit CSM, use one of the following methods:
•Press the MENU button twice, or POWER button on the
remote control transmitter.
•Press the POWER button on the television set.
Figure 5-5 CSM menu (example)
EN 16LC7.1E LB5.
Service Modes, Error Codes, and Fault Finding
5.3Service Tools
5.3.1ComPair
Introduction
ComPair (Computer Aided Repair) is a Service tool for Philips
Consumer Electronics products. and offers the following:
1. ComPair helps you to quickly get an understanding on how
to repair the chassis in a short and effective way.
2. ComPair allows very detailed diagnostics and is therefore
capable of accurately indicating problem areas. You do not
have to know anything about I2C or UART commands
yourself, because ComPair takes care of this.
3. ComPair speeds up the repair time since it can
automatically communicate with the chassis (when the uP
is working) and all repair information is directly available.
4. ComPair features TV software upgrade possibilities.
Specifications
ComPair consists of a Windows based fault finding program
and an interface box between PC and the (defective) product.
The (new) ComPair II interface box is connected to the PC via
an USB cable. For the TV chassis, the ComPair interface box
and the TV communicate via a bi-directional cable via the
service connector(s).
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.
5.3.2LVDS Tool
Support of the LVDS Tool has been discontinued.
How to Connect
This is described in the chassis fault finding database in
ComPair.
TO TV
TO
UART SERVICE
I2C SERVICE
CONNECTOR
CONNECTOR
2
C
I
PC
ComPair II Developed by Philips Brugge
Optional power
5V DC
TO
RS232 /UART
G_06532_036.eps
240807
ComPair II
RC in
Optional
Switch
PowerModeLink/
Activity
HDMI
I
2
C only
UART SERVICE
RC out
TO
CONNECTOR
Multi
function
Figure 5-6 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!
•ComPair UART interface cable for Q52x.x
(using 3.5 mm Mini Jack connector): 3104 311 12742.
Note: If you encounter any problems, contact your local
support desk
Service Modes, Error Codes, and Fault Finding
EN 17LC7.1E LB5.
5.4Error Codes
5.4.1 Introduction
Error codes are required to indicate failures in the TV set. In
principle a unique error code is available for every:
•Activated protection.
•Failing I
•General I
•SDRAM failure.
The last five errors, stored in the NVM, are shown in the
Service menu’s. This is called the error buffer.
The error code buffer contains all errors detected since the last
time the buffer was erased. The buffer is written from left to
right. When an error occurs that is not yet in the error code
buffer, it is displayed at the left side and all other errors shift one
position to the right.
An error will be added to the buffer if this error differs from any
error in the buffer. The last found error is displayed on the left.
An error with a designated error code may never lead to a
deadlock situation. This means that it must always be
diagnosable (e.g. error buffer via OSD or blinking LED
procedure, ComPair to read from the NVM).
In case a failure identified by an error code automatically
results in other error codes (cause and effect), only the error
code of the MAIN failure is displayed.
Example: In case of a failure of the I
code for a “General I
displayed. The error codes for the single devices (EFFECT) is
not displayed. All error codes are stored in the same error
buffer (TV’s NVM) except when the NVM itself is defective.
5.4.2How to Read the Error Buffer
You can read the error buffer in 3 ways:
•On screen via the SAM/SDM/CSM (if you have a picture).
•Via the blinking LED procedure (when you have no
•Via ComPair.
5.4.3 Error Codes
In case of non-intermittent faults, write down the errors present
in the error buffer and clear the error buffer before you begin
the repair. This ensures 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
and not the actual cause of the problem (for example, a fault in
the protection detection circuitry can also lead to a protection).
2
C device.
2
C error.
2
2
C failure” and “Protection errors” is
C bus (CAUSE), the error
Example:
– ERROR: 0 0 0 0 0 : No errors detected
– ERROR: 6 0 0 0 0 : Error code 6 is the last and only
detected error
– ERROR: 9 6 0 0 0 : Error code 6 was detected first and
error code 9 is the last detected (newest) error
picture). See “The Blinking LED Procedure”.
Table 5-2 Error code overview
Error
1)
code
0No error.
1DC Protection of speakers.
2+12V protection error.12V missing or "low".
3Reserved.
4General I
5Trident Video Processor
6I
7I
8I
9I
10SDRAM defective.7204
11I2C error while communicating
12I
13DVB HW communication
14SDRAM defective.7205
15Reserved.
16Reserved.
17Reserved.
18I
19I2C error while communication
DescriptionItem nr. Remarks
2
C error.note 2
communication error.
2
C error while communicating
with the NVM.
2
C error while communicating
with the Tuner.
2
C error while communicating
with the IF Demodulator.
2
C error communicating with
the Sound Processor.
with the HDMI IC.
2
C error while communicating
with the MOJO PNX8314.
error.
2
C error while communicating
with the iBoard processor.
with 1080p bolt-on module.
7202When Trident IC is
defective, error 10 and 14
might also be reported.
Trident communicates via
parallel bus, not via the I2C
bus. The I
is only used in ComPair
mode.
7315The TV will not start-up due
to critical data not available
from the NVM, but the LED
will blink the error code.
1101
7113
7411
7817
7G00if applicable
7F01,
if applicable
7K00,
7G00
if applicable
if applicable
Notes
1. Some of the error codes reported are depending on the
option code configurations.
2. This error means: no I
particular I
2
C bus. Possible causes: SCL/SDA shorted to
2
C device is responding to the
GND, SCL shorted to SDA, or SCL/SDA open (at uP pin).
The internal bus of the Trident platform should not cause
the entire system to halt as such an error can be reported.
5.4.4How to Clear the Error Buffer
The error code buffer is cleared in the following cases:
•By using the CLEAR command in the SAM menu:
– To enter SAM, press the following key sequence on the
remote control transmitter: “062596” directly followed
by the OSD/i+ button (do not allow the display to time
out between entries while keying the sequence).
– Make sure the menu item CLEAR is selected. Use the
MENU UP/DOWN buttons, if necessary.
– Press the MENU RIGHT button to clear the error
buffer. The text on the right side of the “CLEAR” line will
change from “CLEAR?” to “CLEARED”
•If the contents of the error buffer have not changed for 50
hours, the error buffer resets automatically.
Note: If you exit SAM by disconnecting the mains from the
television set, the error buffer is not reset.
2
C bus of Trident
EN 18LC7.1E LB5.
Service Modes, Error Codes, and Fault Finding
5.5The Blinking LED Procedure
5.5.1Introduction
The software is capable of identifying different kinds of errors.
Because it is possible that more than one error can occur over
time, an error buffer is available, which is capable of storing the
last five errors that occurred. This is useful if the OSD is not
working properly.
Errors can also be displayed by the blinking LED procedure.
The method is to repeatedly let the front LED pulse with as
many pulses as the error code number, followed by a period of
1.5 seconds in which the LED is “off”. Then this sequence is
repeated.
Example (1): error code 4 will result in four times the sequence
LED “on” for 0.25 seconds / LED “off” for 0.25 seconds. After
this sequence, the LED will be “off” for 1.5 seconds. Any RC5
command terminates the sequence. Error code LED blinking is
in red colour.
Example (2): the content of the error buffer is “12 9 6 0 0”
After entering SDM, the following occurs:
•1 long blink of 5 seconds to start the sequence,
•12 short blinks followed by a pause of 1.5 seconds,
•9 short blinks followed by a pause of 1.5 seconds,
•6 short blinks followed by a pause of 1.5 seconds,
•1 long blink of 1.5 seconds to finish the sequence,
•The sequence starts again with 12 short blinks.
5.6TV Main Software Upgrading
For instructions on how to upgrade the TV Main software, refer
to ComPair.
5.7Fault Finding and Repair Tips
Notes:
•It is assumed that the components are mounted correctly
with correct values and no bad solder joints.
•Before any fault finding actions, check if the correct options
are set.
5.7.1NVM Editor
In some cases, it can be convenient if one directly can change
the NVM contents. This can be done with the “NVM Editor” in
SAM mode. With this option, single bytes can be changed.
Caution:
•Do not change the NVM settings without
understanding the function of each setting, because
incorrect NVM settings may seriously hamper the
correct functioning of the TV set!
•Always write down the existing NVM settings, before
changing the settings. This will enable you to return to the
original settings, if the new settings turn out to be incorrect.
Table 5-3 NVM editor overview
5.5.2Displaying the Entire Error Buffer
Additionally, the entire error buffer is displayed when Service
Mode “SDM” is entered. In case the TV set is in protection or
Stand-by: The blinking LED procedure sequence (as in SDMmode in normal operation) must be triggered by the following
RC sequence: “MUTE” “062500” “OK”.
In order to avoid confusion with RC5 signal reception blinking,
this blinking procedure is terminated when a RC5 command is
received.
To erase the error buffer, the RC command “MUTE” “062599
“OK” can be used.
HexDecDescription
.ADR0x000A10Existing value
.VAL0x00000New value
.StoreStore?
5.7.2 Load Default NVM Values
It is possible to download default values automatically into the
NVM in case a blank NVM is placed or when the NVM first 20
address contents are "FF". After the default values are
downloaded, it is possible to start-up and to start aligning the
TV set. To initiate a forced default download the following
action has to be performed:
1. Switch “off” the TV set with the mains cord disconnected
from the wall outlet (it does not matter if this is from "Standby" or "Off" situation).
2. Short-circuit the SDM jumpers on the SSB (keep short
circuited).
3. Press “P+” or “CH+” on the local keyboard (and keep it
pressed).
4. Reconnect the mains supply to the wall outlet.
5. Release the “P+” or “CH+” when the set is “on” or blue LED
is blinking.
When the downloading has completed successfully, the set
should be into Stand-by, i.e. red LED on.
Service Modes, Error Codes, and Fault Finding
Alternative method (1):
1. Go to SAM.
2. Select NVM Editor.
3. Select ADR (address) to 1 (dec).
4. Change the VAL (value) to 170 (dec).
5. Store the value.
6. Do a hard reset to make sure new default values took
place.
Alternative method (2):
It is also possible to upload the default values to the NVM with
ComPair in case the SW is changed, the NVM is replaced with
a new (empty) one, or when the NVM content is corrupted.
After replacing an EEPROM (or with a defective/no EEPROM),
default settings should be used to enable the set to start-up and
allow the Service Default Mode and Service Alignment Mode to
be accessed.
5.7.3Start-up/Shut-down Flowcharts
Important note for DVB sets:
•When you put a DVB set into Stand-by mode with an RC,
the set will go to “Semi Stand-by” mode for 5 minutes. This,
to facilitate “Off the Air download” (OAD). If there is no
activity within these 5 minutes, the set will switch to Standby mode. In “Semi Stand-by” mode, the LCD backlight and
Audio Amplifier are turned “off” but other circuits still work
as normal. The customer might think the set is in Stand-by.
However, in real Stand-by mode, only the uP and the NVM
are alive and all other circuits are switched “off”.
•If you press the mains switch at the local key board in a
DVB set, the set will switch to Stand-by mode.
EN 19LC7.1E LB5.
On the next pages you will find start-up and shut-down
flowcharts, which might be helpful during fault finding.
Please note that some events are only related to PDP sets,
and therefore not applicable to this LCD chassis.
EN 20LC7.1E LB5.
Start Up
Service Modes, Error Codes, and Fault Finding
Error 6 - NVM
[Protection]
Standby Normal Mode
(RED LED)
Port Assignment in STANDBY
Wait for RC key or
Wake up event
AC ON
+5VSTBY & +3V3STBY Available (1)
160ms
RENEAS POR by +3VSTBY (2)
STANDBYn = LOW
InitCold Component:
1. Check SDM port.
- If SDM pin = LOW and NVM first 20Byte =
0xFF, reload Software default NVM value.
2. Check Panel port.
- If Panel Pin = LOW and check slave address
0x65 = 0xA5, Enter Panel Mode.
No
Last status is ON?
Yes
Read NVM completed.
STOP I²C activities.
LED = BLUE for Normal mode
LED = RED for Recording mode
BLOCK RC Key
M16C RST_H = HIGH
RST_HDMI = LOW
RST_AUD = LOW
RESET_n = LOW
LCD_PWR_ON = LOW
SDI PDP => CTRL_DISP1 = LOW
(1) +5VSTBY to be measured
at PDTC114ET (item 7322)
(2) to be measured at pin 4
of BD45275G (item 7312)
User wake up the sets
in DVB recording mode
LCD_PWR_ON = HIGH
(Same function as CTRL-DISP2)
SDI PDP => CTRL_DISP1 = LOW
20ms
1000ms to
1500ms
Wait for 20 ms
Switch ON LVDSSignal
Init. Warm Component
(For software)
Error 2
[Protection]
Notes:
---------
1. LC07 TV software only start communication with IBOZ once
receive the INT message from IBOZ.
For DVB Sets only (Semistandby)
Recording mode
SDI PDP => CTRL_DISP1 = HIGH
Recording Mode finished
Software Shutdown:
WP for NVM
Port Assignment in STANDBY
Wait for 100ms
Time out = 2000ms
Yes
500ms
100ms
Error 7
Error 8
Error 9
Error 11
1700ms
Error 3
[Protection]
STANDBYn = HIGH
(Same function as CTRL-DISP3)
Wait for 500ms
Is Power Down =
No
BL_ADJ = HIGH (100% Duty Cycle)
HIGH?
Yes
Wait for 100ms
M16C RST_H to LOW
RST_HDMI = HIGH
RST_AUD = HIGH
RESET_n = HIGH
Enable Power Down INT
Enable DC_PROT INT
Initialise Tuner
Initialise IF Demodulator, Afric
TDA9886T
Initialise Micronas
Mute Audio
Initialise HDMI, Sil9023
Initialise Trident CX
DPTVInit( )
Initialise FHP Panel
* For FHP PDP Sets only
Initialise Bolt-ON
* For iTV, 1080P, Ambi Light
For LCD:
BL_ON_OFF = HIGH
* BL_ADJ keep 100% for 3000ms
before dimming.
Blank Picture
Picture Mode Setup & Detection
unBlank Picture &
UnMute Audio
No
Error 5 - Trident
[Protection]
Error 10 – SDRAM 7204
[Protection]
Error 14 – SDRAM 7205
[Protection]
Error 17 – AmbiLight
Error 18 – iTV iFace
End
For PDP:
3000ms delay
STANDBYn = LOW
Standby
Normal Mode
Enable RC Key
DVB recording mode
Figure 5-7 Start-up flowchart
Error 19 – 1080P
G_16860_070.eps
220207
Service Modes, Error Codes, and Fault Finding
EN 21LC7.1E LB5.
SEMISTANDBY/ STANDBY
300ms
20ms
Start
Mute Audio
BL_ADJ stop dimming
(PWM duty cycle 100%)
BL_ON_OFF = LOW
Wait 300ms
Switch OFF LVDS
Wait 20ms
LCD_PWR_ON = LOW
LED = REDNo
For DVB Sets only (Semistandby)
Wait for 3000ms
Except power tact switch
SDI PDP => CTRL_DISP1 = HIGH
Off Air Downloading/ Recording Mode
IBOZ send shut down command
Software Shutdown:
Standby using
“power key”
Yes
LED = NO LED
for Standby soft mode
Disable Power Down INT &
DC_PROT_INT
BL_ADJ = LOW
(PWM duty cycle 0%)
WriteProtect for NVM
Port Assignment in STANDBY
Sets go to standby here
40ms
Total = 360ms
STANDBYn = LOW
Wait for 3000ms
End
Figure 5-8 Semi Stand-by/Stand-by flowchart
Blocking for the next start up to ensure
power supply discard properly.
G_16860_071.eps
220207
EN 22LC7.1E LB5.
Service Modes, Error Codes, and Fault Finding
Power Down INT:
AC OFF or Transient INT
Start
Notes:
1. Power Down INT will be based on fall edge triggering
2. +3V3STBY will stay for 15ms, software must perform
WriteProtect for NVM within 15ms.
Avoid false trigger
No
End
Poll the Power Down
INT for 5 times
Yes
Mute Audio & VIdeo
WriteProtect for NVM
STANDBYn = LOW
Wait 5000 ms
Re-start: Start up
End
DC_PROT INT
Avoid false trigger
No
End
Error 1
[Protection]
Start
is DC_PROT = LOW
for 3 sec?
Yes
Mute Audio & VIdeo
Log Error Code
WriteProtect for NVM
STANDBYn = LOW
End
G_16860_072.eps
220207
Figure 5-9 Power Down & DC_PROT flowchart
Block Diagrams, Test Point Overview, and Waveforms
6.Block Diagrams, Test Point Overview, and Waveforms
Wiring Diagram 19”
WIRING 19” (STYLING BELT)
23LC7.1E LB6.
CONNECTIONS
MAIN SUPPLY
X203
1. GND
2. 3V3
3. GND
4. Power_OK
5. NC
X201
1. -Vaudio
2. +Vaudio
3. gnd_au
4. 5V2
5. 5V2
6. 5V2
1
X203
MAIN SUPPLY
5P
1
X201
1
X202
9P
8P
TOP CONTROL PANEL
E
B
SSB
9P
1C01
8P
1P11
5P
TT
J2
J1
30P
30P
1G51
J1
3P
TTL/LVDS PANEL
J3
7P
1M20
11P
1304
40P
4P
1735
TO LCD
DISPLAY
D
SIDE
I/O
PAN EL
7. GND
8. GND
9. GND
X202
1. NC
2. Power_OK
3. BL_ON
4. GND
5. NC
6. Stby
7. NC
8. +12V
X100
AC
INLET
RIGHT
SPEAKER
TUNER
LEFT
SPEAKER
11P
IR & LED
J
1304
1870
6P
H_17160_001.eps
270707
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Video
VIDEO
B03A
TUNER IF & DEMODULATOR
MAIN
TUNER
+VTUN
IF_OUT3
9
4120
11
1
3111
1101
TD1318S/A
(ANALOGUE)
IF_ATV
RF_AGC
24LC7.1E LB6.
B04B
VIDEO PROCESSOR
7113
TDA9886T/V4
1102
VIF1
5
1
1
1103
VIF2
4
SIF1
5
SIF2
4
B06B
EXT1
EXT2
B06A
EXT4
D
EXT3
B06C
HDMI 1
HDMI 2
VIF1
1
2
VIF2
SIF1
23
SIF2
24
TAG C
14
IO - SCART 1 & 2
1504
19
1
15
11
7
20
16
8
21
SCART1
1506
1
19
20
15
8
21
SCART2
YPBPR & REAR IO
SIDE FACING SIDE AV
VIDEO
S VIDEO
1615
Pr
Y
Pb
1302
1301
1
3
5
4
2
HDMI
1810
1
3
4
1
6
7
9
10
182
19
12
19
1811
1
3
4
1
6
7
9
10
182
19
12
19
SIF AGC
TUNER AGC
3528
3516
3528
3522
3552
3617
3619
FRONT_Y_CVBS_IN
7814
7860
+5VS
SUPPLY
VIF-PLL
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER AND
VIF AGC
7503
3535
EF
3523
3545
3518
SC1_STATUS
7500
EF
3529
3550
3618
FRONT_C_IN
RX2+A
RX2-A
RX1+A
RX1-A
RX0+A
RX0-A
RXC+A
RXC-A
HDMI_HOTPLUG_RESET
RX2+B
RX2-B
RX1+B
RX1-B
RX0+B
RX0-B
RXC+B
RXC-B
HDMI_HOTPLUG_RESET
DEMODULATOR
SOUND TRAPS
4.5 to 6.5 Mhz
AM-DEMODULATOR
I2C-BUS TRANSCEIVER
3537
3521
SC2_STATUS
B04A
1304
1304
2
2
4
4
B04A
B04A
CVBS
MAD
SCL
SDA
SC1_RF_OUT_CVBS
B04A
SC2_CVBS_MON_OUT
B04A
MICROPROCESSOR
7817
SII9025CTU
52
+
R0X2
51
-
48
47
44
43
40
39
71
70
67
66
63
62
59
58
ADC
+
R0X1
+
R0X0
+
R0XC
-
+
R1X2
-
+
R1X1
+
R1X0
+
R1XC
-
HDMI
(MAIN)
ODCK
HSYNC
VSYNC
7114
EF
17
15
1104
4M0
SC1_CVBS_IN
SC1_FBL_IN
SC2_Y_CVBS_IN
FRONT_Y_CVBS_IN_T
FRONT_C_IN_T
HDMI_VCLK
121
1
DE
2
3
CVBS_RF
SC1_R_IN
SC1_G_IN
SC1_B_IN
SC2_C_IN
HD_Pr_IN
HD_Y_IN
HD_Pb_IN
HDMI_DE
HDMI_H
HDMI_V
HDMI_Cb(0-7)
HDMI_Y(0-7)
HDMI_Cr(0-7)
169
163
189
181
197
198
173
162
190
70
188
180
196
182
192
23
6
4
5
7202
SVP CX32-LF
CVBS1
ANALOG
MUX
CVBS_OUT1
PR_R2
Y_G2
PB_B2
PB_B3
FB1
CVBS_OUT2
PR_R3
FS2
PR_R1
Y_G1
PB_B3
Y_G3
C
DP-CLK
DP_DE_FLD
DP_HS
DP_VS
DIN_PORTD
(24BIT)
VIDEO
PROCESSOR
XTALO
MEMORY
8-BIT
SINGLE
LVD S TX
TCLK1
XTALI
TA1
TB1
TC1
TD1
205
204
51
50
49
48
45
44
43
42
41
40
DQ(0-31)
CX_MA
TXAn
TXAp
TXBn
TXBp
TXCn
TXCp
TXCLKn
TXCLKp
TXDn
TXDp
1201
14M31
(0-11)
(0-15)
(0-11)
(16-31)
7204
IS42S16400D-6TL
1Mx16x4
7205
IS42S16400D-6TL
1Mx16x4
1210
1211
1212
1213
1214
DRAM
DRAM
VDISP
TXAn1
TXAp1
TXBn1
TXBp1
TXCn1
TXCp1
TXCLKn1
TXCLKp1
TXDn1
TXDp1
1G51
TT
TTL/LVDS PANEL
IC2
VDISP
THC63LVD82
77
78
79
80
82
83
84
85
86
87
LVD S
RECEIVER
VSYNC
74
HSYNC
73
75
J1
2
1
4
3
6
5
8
7
1
2
4
6
8
12
14
18
20
24
26
TXAn
3
TXAp
5
TXBn
7
TXBp
11
TXCn
13
TXCp
17
TXCLKn
19
TXCLKp
23
TXDn
25
TXDp
IC1
THC63LVD82
L1
49
48
47
46
LVD S
RECEIVER
8
7
9
DE
44
43
42
41
40
39
37
36
35
34
32
31
30
29
28
27
RXO0n
RXO0p
L2
RXO1n
RXO1p
L3
RXO2n
RXO2p
L4
RXOCn
RXOCp
L5
RXO3n
RXO3p
L6
RXE0n
RXE0p
L7
RXE1n
RXE1p
L8
RXE2n
RXE2p
L9
RXECn
RXECp
L10
RXE3n
RXE3p
VDISP
J3
1
2
3
4
5
6
8
9
10
11
12
13
15
16
18
19
20
21
22
23
28
29
30
TO DISPLAY
2x LVDS
H_17160_002.eps
270707
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Audio
AUDIO
TUNER IF & DEMODULATOR
B03A
25LC7.1E LB6.
B04C
AUDIO PROCESSOR
B07
AUDIO
1101
TD1318S/A
MAIN
TUNER
B04A
+VTUN
9
IF_OUT3
SAW_SW
7113
TDA9886T/V4
1102
11
IF-ATV
1
3111
1
1103
1
6103
7109
I0 - SCART 1 & 2
B06B
D
SIDE FACING SIDE AV
B06A
YPBPR & REAR IO
5
4
5
4
RF_AGC
EXT3
EXT4
VIF1
VIF2
SIF1
SIF2
2x SCART
AUDIO
L/R IN
AUDIO
L/R IN
VIF1
1
2
VIF2
23
SIF1
SIF2
24
TAG C
14
12
1504
1
2
1
3
6
EXT1
1506
1
2
3
21
6
EXT2
1302
1615
SIF AGC
TUNER AGC
SC1_AUDIO _OUT_R
SC1_AUDIO _OUT_L
L_FRONT_IN
R_FRONT_IN
COMP_AUDIO_IN_L
COMP_AUDIO_IN_R
+5VS
SUPPLY
VIF-PLL
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER AND
AM-DEMODULATOR
VIF AGC
SC2_AUDIO _OUT_R
SC1_AUDIO _OUT_L
1304
DEMODULATOR
SOUND TRAPS
4.5 to 6.5 Mhz
MAD
I2C-BUS TRANSCEIVER
SCL
SDA
SC1_AUDIO _MUTE_R
SC1_AUDIO _MUTE_L
SC2_AUDIO _MUTE_R
SC2_AUDIO _MUTE_L
MICROPROCESSOR
B04A
1304
6
6
8
8
CVBS
SIF
12
SIOMAD
15
B06D
SC1_AUDIO_IN_R
SC1_AUDIO_IN_L
B06D
B06D
SC2_AUDIO_IN_R
SC2_AUDIO_IN_L
B06D
SIDE_AUDIO_IN_L_CON
SIDE_AUDIO_IN_R_CON
COMP_AUDIO_IN_L
COMP_AUDIO_IN_R
1104
4M0
7411
MSP4450P-VK-E8 000 Y
50
ANA-IN1+
67
XTALIN
68
XTALOUT
1411
18M432
36
SC1-OUT-R
53
SC1-IN-R
37
SC1-OUT-L
54
SC1-IN-L
33
SC2-OUT-R
53
SC2-IN-R
34
SC2-OUT-L
52
SC2-IN-L
48
SC4-IN-L
49
SC4-IN-R
50
SC3-IN-L
51
SC3-IN-R
SOUND
PROCESSOR
DACM- L
DACM- R
SUPPLY
DACA-L
DACA- R
7A01
TDA8932T/N1
27
26
AUDI O-LS_L
AUDI O-LS_R
3A03
3A11
9
1
CLASS D
5A03
27
POWER
6
5
B04A
AMPLIFIER
22
DC_PROT
SIDE FACING SIDE AV
D
7A05÷7A07
DC-DETECTION
5A04
STANDBYn
B04A
ENGAGE
12
13
39
38
40
+5V_D
+8V
+5V_AUD
HEADPHONE AMP & MUTING
B06D
B04A
MICRO
3A19
3A26
1735
1
2
3
4
LEFT
SPEAKER
RIGHT
SPEAKER
PROCESSOR
7901
24
23
HP_AUDIO_OUT_L
HP_AUDIO_OUT_R
ANTI_PLOP
B04A
POWER_DOWN
B04A
B04A
B04A
STANDBY
MUTEn
MUTING
CONTROL
HP_LOUT
HP_ROUT
SC1_AUDIO _MUTE_R
SC1_AUDIO _MUTE_L
SC2_AUDIO _MUTE_R
SC2_AUDIO _MUTE_L
1304
1304
6
8
6
8
B06B
HEAD_PH_L
HEAD_PH_R
1303
2
3
5
HEADPHONE
B06C
1
182
19
2x HDMI
CONNECTOR
HDMI
1
182
19
RXxxA
RXxxB
7817
SII9025CTU
+
RX2
-
HDMI
+
RX1
-
+
RX0
-
+
RXC
-
SCK
WS
SD0
MUTE
86
HDMI_I2S_SCK
85
HDNI_I2S_WS
84
HDMI_I2S_SD
77
7810
UDA1334ATS/N2
AUDIO
DAC
1
BCK
2
WS
3
DATAI
8
MUTE
VOUTL
VOUTR
HDMI_AUDIO_IN_L
14
HDMI_AUDIO_IN_R
16
57
58
SC5-IN-L
SC5-IN-R
H_16940_002.eps
070607
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Control & Clock Signals
CONTROL & CLOCK SIGNALS
B04B
VIDEO PROCESSOR
B06C
HDMI
1
182
19
1
RXxxB
182
19
2x HDMI
CONNECTOR
RXxxA
7204
IS42S16400D-6TL
DRAM
1Mx16x4
37
38
7205
IS42S16400D-6TL
DRAM
1Mx16x4
37
38
7817
SII9025CTU
+
-
+
-
121
R0
R1
102
DQ(0-31)
CX_MA(0-11)
CX_CLKE
CX_MCLK
HDMI_CCLK
HDMI_Cb(0-7)
HDMI_Y(0-7)
HDMI_Cr(0-7)
7202
SVP CX32-LF
PROCESSOR
112
111
23
VIDEO
26LC7.1E LB6.
1G51
18
20
B02
B04B
B04B
B04B
B04B
B07
B02 B06D
1312
6
5
ITV_CONNECTOR A
B06D
B02
B6D
B06D
B06C
B04C
TO DISPLAY
(LVDS)
26
12
5
RST
1213
7312
BD45275G
VOUT
2,3
AD(0-7)
A(0-19)
CE
CPU_RST
4
(3V3)
CS
WR
RD
ALE_EMU
RST_H
INT
7203
7206
CONTROL
7311
M30300SAGP
48
10
PROCESSOR
45
44
42
38
4
17
36
MICRO
ONLY FOR LCD
77
76
99
3
7322
13
1301
10M
11
9
8
74
75
72
78
89
HDMI_HOTPLUG_RESET
88
TXCLKn1
TXCLKP1
BL_ADJUST
CTRL_DISP1_up
CTRL_DISP4_up
LCD_PWR_ON
STANDBYn
STANDBY
ITV_SPI_CLK
ITV_SPI_DATA_IN
ANTI_PLOP
BL_ON_OFF
POWER_DOWN
MUTEn
RST_AUD
TXCLKn
43
TXCLKP
42
55
B04A
MICROPROCESSOR
AD(0-7)
A(0-7)
7310
M29W800DT
EPROM
1Mx8
512Kx16
28
11
+3V3_STBY
61
62
63
84
86
56
E
TOP CONTROL
CHANNEL +
CHANNEL -
VOLUME VOLUME +
J
FRONT IR LED
+3V3STBY
+3V3STBY
MENU
POWER
3802
3803
7802
S1
S2
S3
S4
S5
S6
7803
7801
6801-1
LED1
RED
6801-2
LED2
GREEN
IR
SENSOR
7804
KEYBOARD
3807
3801
PC-TV-LED
LED_SEL
IR
N.C.
J1
2
1M20
7
1870
66
44
33
11
B06B
B06B
B07
B06C
SC1_STATUS
SC2_STATUS
DC_PROT
HDMI_INT
KEYB
LED1
LED2
REMOTE
LIGHT_SENSOR
104
91
90
71
100
E_PAGE
7315
M24C64-WMN6P
EEPROM
7
8Kx8
19
93
95
87
18
92
23
21
3361
25
DCC_RESET
+3V3_STBY
3366
SAW_SW
DVB_SW
4301
B06C
B03A
B03A
SDM
H_17160_003.eps
270707
Block Diagrams, Test Point Overview, and Waveforms
SRP (Service Reference Protocol) is a software tool that creates a list with all references to signal lines. The list contains
references to the signals within all schematics of a PWB. It replaces the text references currently printed next to the signal
names in the schematics. These printed references are created manually and are therefore not guaranteed to be 100%
correct. In addition, in the current crowded schematics there is often none or very little place for these references.
Some of the PW
reference list for a schematic, or there will be printed references in the schematic.
1.2. Non-SRP Schematics
There are several different signals available in a schematic:
1.2.1.Power Supply Lines
All power supply lines are available in the supply line overview (see chapter 6). In the schematics (see chapter 7) is not
indicated where supplies are coming from or going to.
It is however indicated if a supply is incoming (created elsewhere), or outgoing (created or adapted in the current schematic).
Outgoing Incoming
1.2.2. Normal Signals
For normal signals, a schematic reference (e.g. B14b) is placed next to the signals.
B14b
1.2.3. Grounds
For normal and special grounds (e.g. GNDHOT or GND3V3 etc.), nothing is indicated.
1.3. SRP Schematics
SRP is a tool, which automatically creates a list with signal references, indicating on which schematic the signals are used.
A reference is created for all signals indicated with an SRP symbol, these symbols are:
namena me
namena me
name
name
Remarks:
• When there is a black dot on the "signal direction arrow" it is an SRP symbol, so there will be a reference to the signal
name in the SRP list.
• All references to normal grounds (Ground symbols without additional text) are not listed in the reference list, this to keep
it concise.
• Signals that are not used in multiple schematics, but only once 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 Adobe PDF reader:
• Select the signal name you want to search 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 occurrences and follow the signal over all schematics. It is advised to
"zoom in" to e.g. 150% to see clearly, which text is selected. 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.
3104 313 6261.1
B schematics will use SRP while others will still use the manual references. Either there will be an SRP
+5V+5V
signal_name
+5V+5V
namename
Bi-directional line (e.g. SDA) into a wire tree.
Signal line into a wire tree, its direction depends on the circuit (e.g. ingoing for PDP, outgoing for LCD sets).
Circuit Diagrams and PWB Layouts
Power supply line.
Stand alone signal or switching line (used as less as possible).
gedg
Normal s wing o utput
Outputenable
PRBS Disable
C43
C43
C17
C17
100pF
100pF
100nF
100nF
e
d
C44
C44
100pF
100pF
for 2 x LVDS only
H_17170_014.eps
1
150507
Circuit Diagrams and PWB Layouts
Layout LCD Interface Panel (Top Side)
26
100
25
1
29
1
R28
R12
R27
R46
J2
50
51
1
1
C19
75
5
1
76
R2
1
R
1
R3
2
IC
R
4
R5
1
4
41
1
4
1
4
1
4
1
4
1
4
41
1
4
1
4
1
4
R29
R30
R6
R7
R8
R9
R10
R11
R43
R42
R41
R40
R39
R38
67LC7.1E LB7.
Personal Notes:
8
5
8
5
8
5
8
5
8
5
85
8
5
8
5
8541
8
5
8
5
8
5
40
7
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76
I
C1
1
00
1
1
R35
R37
R36
R34
R33
R32
51
25
R31
50
26
R13
L10
L1
L2
L3
L4
L5
L6
L7
L8
9
L
2
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30
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29
UL-Field
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R52
R50
3
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C45
4
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0
3
1
1
3
T2
5
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PHPCB0002800
Layout LCD Interface Panel (Bottom Side)
I
43
I
42
I
47
I4
PHPCB0002800
I4
I45
4
I46
L14
C23
C39
C38
L15
I84
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1
5
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I4
I50
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I59
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I5
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I56
R26
I57
C12
C24
R25
I58
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C11
I83
60
20
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C13
R45
I6
C17
I19
C40
R44
C41
I8
R24
2
I64
I63
I81
R23
2
I72
I8
R22
I67
I66
0
R21
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65
79
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R20
I6
C16
C44
R19
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69
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C42
C
C43
C14
I78
8
70
15
C25
I71
39
C18
C37
T1
C10
I16
C2
C28
2
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C33
R51
C5
C9
C8
C31
C34
C7
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I21
L16
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61
I75
7
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R18
7
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7
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R17
R49
I74
R16
73
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R15
L17
R14
C30
C3
C
L12
21
C26
R47
I
R48
C1
1
C29
7
C46
3
1
1
LIBL2
PHPCB000280
C22
L13
I18
C
4
C35
C36
C6
C20
L11
I15
I14
0
H_17170_015.eps
150507
I1
H_17170_016.eps
150507
3
E_06532_012.eps
131004
Personal Notes:
Circuit Diagrams and PWB Layouts
68LC7.1E LB7.
E_06532_013.eps
131004
8.Alignments
Alignments
EN 69LC7.1E LB8.
Index of this chapter:
8.1 General Alignment Conditions
8.2 Hardware Alignments
8.3 Software Alignments
8.4 Option Settings
Note: Figures below can deviate slightly from the actual
situation, due to the different set executions.
General: The Service Default Mode (SDM) and Service
Alignment Mode (SAM) are described in chapter 5. Menu
navigation is done with the CURSOR UP, DOWN, LEFT or
RIGHT keys of the remote control transmitter.
8.1General Alignment Conditions
Perform all electrical adjustments under the following
conditions:
•Power supply voltage (depends on region):
– AP-NTSC: 120 V
– AP-PAL-multi: 120 - 230 V
– EU: 230 V
AC
– LATAM-NTSC: 120 - 230 V
– US: 120 V
AC
or 230 VAC / 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
/ 50 Hz (± 10%).
AC
/ 60 Hz (± 10%).
•Connect the set to the mains via an isolation transformer
with low internal resistance.
•Allow the set to warm up for approximately 15 minutes.
•Measure voltages and waveforms in relation to correct
ground (e.g. measure audio signals in relation to
AUDIO_GND).
Caution: It is not allowed to use heatsinks as ground.
•Test probe: Ri > 10 Mohm, Ci < 20 pF.
•Use an isolated trimmer/screwdriver to perform
alignments.
8.2Hardware Alignments
There are no hardware alignments foreseen for this chassis,
but below find an overview of the most important DC voltages
on the SSB. These can be used for checking proper functioning
of the DC/DC converters.
DescriptionTest Point Specifications (V)Diagram
Min. Typ. Max.
+AUDIO_POWER FB2111.40 12.00 12.60 B02_DC-DC
-AUDIO_POWER FB23-11.40 -12.00 -12.60 B02_DC-DC
+12V_DISPFB3411.40 12.00 12.60 B02_DC-DC
+8VF4017.60 8.00 8.40 B04C_Audio Proc.
+5V_STANDBYFB274.94 5.20 5.46 B02_DC-DC
+5V_SWFB164.93 5.19 5.45 B02_DC-DC
+5V_DI4114.75 5.00 5.25 B04C_Audio Proc.
+5V_AUDI4104.75 5.00 5.25 B04C_Audio Proc.
+5V_TUNI1154.75 5.00 5.25 B03_Tuner IF
+3V3_STBYFB133.10 3.30 3.50 B02_DC-DC
+3V3_SWFB173.13.33.5B02_DC-DC
+3V3_MOJOFB193.13.33.5B02_DC-DC
+3V3FJ013.23.27 3.4B03F_DVB-MOJO
+3V3FEFF143.23.27 3.4B03B_DVB-Demod
+1V8S_SWFB111.70 1.80 1.90 B02_DC-DC
+1V2_MOJOFB201.18 1.25 1.31 B02_DC-DC
+1V2_COREFG391.14 1.24 1.34 B03D_DVB-MOJO
VDISPF21011.40 12.00 12.60 B04B_Video proc.
8.3.1Tuner Adjustment (RF AGC Take Over Point)
Purpose: To keep the tuner output signal constant as the input
signal amplitude varies.
The LC7.xx chassis comes with two tuner types: the UV1318S
for the analogue sets (LC7.1x) and the TD1316AF for the
hybrid sets (LC7.2x).
For the digital tuner TD1316AF, no alignment is necessary, as
the AGC alignment is done automatically (standard value:
“15”), even during analogue reception.
The analogue tuner UV1318S can also use the default value of
“15”, however in case of problems use the following method
(use multimeter and RF generator):
•Apply a vision IF carrier of 38.9 MHz (105 dBuV = 178
mVrms) to test point F111 (input via 50 ohm coaxial cable
terminated with an RC network of series 10nF with 120
ohm to ground).
•Measure voltage on pin 1 of the tuner.
•Adjust AGC (via SAM menu: TUNER -> AGC), until voltage
on pin 1 is 3.3 +0.5/-1.0 V.
•Store settings and exit SAM.
8.3.2RGB Alignment
Before alignment, choose “TV MENU” -> “Picture” and set:
•“Brightness” to “50”.
•“Colour” to “50”.
•“Contrast” to “100”.
White Tone Alignment:
•Activate SAM.
•Select “RGB Align.” -> “White Tone” and choose a colour
temperature.
•Use a 100% white screen as input signal and set the
following values:
– All “White point” values initial to “256”.
– All “BlackL Offset” values to “0”.
In case you have a colour analyser:
•Measure with a calibrated (phosphor- independent) colour
analyser (e.g. Minolta CA-210) in the centre of the screen.
Consequently, the measurement needs to be done in a
dark environment.
•Adjust the correct x,y coordinates (while holding one of the
White point registers R, G or B on “256”) by means of
decreasing the value of one or two other white points to the
correct x,y coordinates (see table “White D alignment
values”). Tolerance: dx: ± 0.004, dy: ± 0.004.
•Repeat this step for the other colour Temperatures that
need to be aligned.
•When finished return to the SAM root menu and press
STANDBY on the RC to store the aligned values to the
NVM.
Table 8-1 White D alignment values
ValueCool (11000 K)Normal (9000 K)Warm (6500 K)
x0.2780.2890.314
y0.2780.2910.319
8.3Software Alignments
With the software alignments of the Service Alignment Mode
(SAM) the Tuner and RGB settings can be aligned.
To store the data: Use the RC button “Menu” to switch to the
main menu and next, switch to “Stand-by” mode.
If you do not have a colour analyser, you can use the default
values. This is the next best solution. The default values are
average values coming from production (statistics).
•Set the RED, GREEN and BLUE default values per
temperature according to the values in the “Tint settings”
table.
EN 70LC7.1E LB8.
Alignments
•When finished return to the SAM root menu and press
STANDBY on the RC to store the aligned values to the
NVM.
Table 8-2 Tint settings
Alignment19" (*)
COOL_RED248
COOL_GREEN253
COOL_BLUE256
NORMAL_RED256
NORMAL_GREEN256
NORMAL_BLUE245
WARM_RED256
WARM_GREEN 242
WARM_BLUE211
(*) This data was preliminary at the time of writing. It will be
updated as soon as data from production is available.
Black Level Offset Alignment
•Activate SAM.
•Select “RGB Align.” -> “BlackL Offset” and choose a colour.
•Set all “BlackL Offset” values to “0”.
•When finished return to the SAM root menu and press
STANDBY on the RC to store the aligned values to the
NVM.
Note: For models with “Pixel Plus”, the “Black Offset” (black
level offset) should NOT be changed in SAM. These offset
values of RGB should be set to “0”, and should NOT be
adjusted. Any adjustment of these values will affect the low
light white balance.
ADC YPbPr Gray Scale Alignment
When the grey scale is not correct, use this alignment:
•Activate SAM.
•Select “NVM Editor”.
•Enter address “26(dec)” (ADR).
•Set value (VAL) to “197(dec) ± 25”.
•Store (STORE) the value.
8.4Option Settings
8.4.1Introduction
The microprocessor communicates with a large number of I
ICs in the set. To ensure good communication and to make
digital diagnosis possible, the microprocessor has to know
which ICs to address. The presence/absence of these specific
ICs (or functions) is made known by the option codes.
Notes:
•After changing the option(s), save them with the STORE
command.
•The new option setting becomes active after the TV is
switched "off" and "on" again with the mains switch (the
EAROM is then read again).
8.4.2 How To Set Option Codes
When the NVM is replaced, all options will require resetting. To
be certain that the factory settings are reproduced exactly, you
must set all option numbers. You can find the correct option
numbers in table “Option Codes OP1...OP7“below.
How to Change Options Codes
An option code (or “option byte”) represents eight different
options (bits). When you change these numbers directly, you
can set all options very quickly. All options are controlled via
seven option bytes (OP1... OP7).
Activate SAM and select “Options”. Now you can select the
option byte (OP1.. OP7) with the CURSOR UP/ DOWN keys,
and enter the new 3 digit (decimal) value. For the correct
factory default settings, see the next table “Option codes
OP1...OP7“. For more detailed information, see the second
table “Option codes at bit level“. If an option is set (value “1”), it
represents a certain decimal value.
When all the correct options (bits) are set, the sum of the
decimal values of each Option Byte (OP) will give the option
code.
Sets 12NC Sets Type LCD Panel Type Option Byte (Dec)
LC07_EU_DTV_LCD_UK (/05)
8670 000 29842 19PFL5522D/05
8670 000 30539 19PFL5602D/05
8670 000 29822 20PFL5522D/05
8670 000 30667 20HF5335D/05
8670 000 29743 23PFL5522D/05 AUO: T230XW01_V3 106
LC07_EU_DTV Pan Europe (/12)
8670 000 29841 19PFL5522D/12
8670 000 30541 19PFL5602D/12
8670 000 29839 20PFL5522D/12
8670 000 30147 20HF5335D/12
8670 000 29744 23PFL5522D/12 AUO: T230XW01_V3 106
CMO: M190A1-L02 105 07
LPL: LC201V02-SDB1103
AUO: A201SN02 V5 104
LPL: LC201V02-SDB1103
AUO: A201SN02 V5 104
CMO: M190A1-L02 10507
LPL: LC201V02-SDB1103
AUO: A201SN02 V5 104
LPL: LC201V02-SDB1103
AUO: A201SN02 V5 104
LCD Panel
Code (Dec)
Group 1 Group 2
1 2 3 4 5 6 7
19
10 223 09 02
06
07
13
223 09 02
1001
06
07
2
01
H_17170_033.eps
010807
C
Figure 8-1 Option codes OP1...OP7
Alignments
Option Bit Overview
Below find an overview of the Option Codes on bit level.
Table 8-3 Option codes at bit level (OP1-OP4)
Option Byte & BitDec. ValueOption NameDescription
Byte OP1
Bit 7 (MSB)128ReservedNot Used (Reserved)
Bit 664CHINAON = SW is for CHINA only
Bit 532DTV_CHINAON = DTV_CHINA will be available (Reserved)
Bit 416DTV_EUON = DTV will be available
Bit 38UK_PNPON = UK PNP is available
Bit 24VIRGIN_MODEON = Virgin Mode (PNP) is available
Bit 12ACION = ACI is available
Bit 0 (LSB)1ATSON = ATS is available
Total DEC Value
Byte OP2
Bit 7 (MSB)12 81080PON = 1080p is available
Bit 664LIGHT_SENSORON = Light Sensor is available
Bit 532AMBILIGHT ON = Ambilight Feature will be available
Bit 416BACKLIGHT_DIMMINGON = Backlight Dimming is available
Bit 38HUEON = Hue is available
Bit 242D3DCFON = 3D Comb Filter is available
Bit 12WSSBON = WSS is available
Bit 0 (LSB)1WIDE_SCREENON = TV is 16x9 set
Total DEC Value
Byte OP3
Bit 7 (MSB)128CVI2ON=2 CVI (YPbPr)
Bit 664ReservedNot Used (Reserved)
Bit 532ReservedNot Used (Reserved)
Bit 416VCHIPON = VChip is available
Bit 38VIDEO_TEXTON = Video-TXT is available
Bit 24STEREO_DBXON = Stereo DBX detection is available (LATAM)
Bit 12STEREO_NICAM_2CSON = Stereo NICAM 2CS detection is available (EU/AP/China)
Bit 0 (LSB)1LIP_SYNCON = Lip Sync is available
Total DEC Value
Byte OP4
Bit 7 (MSB)128HDMI2 ON = HDMI2 is available
Bit 664HDMI1 ON = HDMI1 is available
Bit 532VGA ON = VGA is available
Bit 416SVHS3ON = SVHS3 is available
Bit 38AV3ON = AV3 is available
Bit 24CVION = CVI is available
Bit 12SVHS2ON = SVHS2 is available
Bit 0 (LSB)1AV2ON = AV2 is available
Total DEC Value
OFF = SW is for Non-China AP cluster
OFF = DTV_CHINA will not be available
OFF = DTV will not be available
OFF = UK PNP is not available
OFF = Virgin Mode (PNP) is not available
OFF = ACI is not available
OFF = ATS is not available
OFF = 1080p is not available
OFF = Light Sensor is not available
OFF = Ambilight Feature will not be available
OFF = Backlight Dimming is not available
OFF = Hue is not available
OFF = 2D Comb Filter is available
OFF = WSS is not available
OFF = TV is 4x3 set
(For AP & LATAM)
OFF = VChip is not available
OFF = Video-TXT is not available
OFF = Stereo DBX detection is not available
OFF = Stereo NICAM 2CS detection is not available
OFF = Lip Sync is not available
OFF = HDMI2 is not available
OFF = HDMI1 is not available
OFF = VGA is not available
OFF = SVHS3 is not available
OFF = AV3 is not available
OFF = CVI is not available
OFF = SVHS2 is not available
OFF = AV2 is not available
EN 71LC7.1E LB8.
EN 72LC7.1E LB8.
Alignments
Table 8-4 Option codes at bit level (OP5-OP7)
Option Byte & BitDec. ValueOption NameDescription
Byte OP5
Bit 7 (MSB)128NVM_CHECKON = NVM (range) checking is available
Bit 664ReservedNot Used (Reserved)
Bit 532ReservedNot Used (Reserved)
Bit 416ReservedNot Used (Reserved)
Bit 38SYS_RECVRYON = System Recovery is available
Bit 24SL_WIREDON = BDS Smart Loader Wired is available
Bit 12HOTELON = Hotel/BDS is available
Bit 0 (LSB)1SS_DEMOON = Split Screen Demo is available
Total DEC Value
Byte OP6
Bit 7 (MSB)128ReservedNot Used (Reserved)
Bit 664ReservedNot Used (Reserved)
Bit 532ReservedNot Used (Reserved)
Bit 416ReservedNot Used (Reserved)
Bit 38TUNER PROFILE0 = ATV_EU_PHILIPS UV1318S/AIH-3
Bit 24
Bit 12
Bit 0 (LSB)1
Total DEC Value
Byte OP7
Bit 7 (MSB)128ReservedNot Used (Reserved)
Bit 664ReservedNot Used (Reserved)
Bit 532ReservedNot Used (Reserved)
Bit 416CABINET PROFILE0 = Cabinet_Profile_26_LCD_ME7
Bit 38
Bit 24
Bit 12
Bit 0 (LSB)1
Total DEC Value
OFF = NVM (range) checking is not available
OFF = System Recovery is not available
OFF = BDS Smart Loader Wired is not available
OFF = Hotel/BDS is not available
OFF = Split Screen is not available
1 = ATV_EU_Panasonic EN57K28G3F
2 = DTV_EU_PHILIPS TD1316AF/IHP-2
4 = ATV_AP_PHILIPS UV1316E/AIH-4
5 = ATV_AP_Tuner2 (Reserved)
6 = ATV_CHINA_ALPS TEDE9-286B
7 = ATV_CHINA_Tuner2 (Reserved)
8 = ATV_LATAM_PHILIPS UV1338/AIH-4
9 = ATV_LATAM_Tuner2 (Reserved)
10 = DTV_CHINA_Tuner1 (Reserved)
11 = DTV_CHINA_Tuner2 (Reserved)
12 = Not Used (Reserved)
13 = Not Used (Reserved)
14 = Not Used (Reserved)
15 = Not Used (Reserved)
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 73LC7.1E LB9.
Index of this chapter:
9.1 Introduction
9.2 Main Supply
9.3 DC/DC converters
9.4 Front-End
9.5 Video Processing
9.6 Memory addressing
9.7 Audio Processing
9.8 HDMI
9.9 Abbreviation List
9.10 IC Data Sheets
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 (chapter 6) and
Circuit Diagrams (chapter 7). Where necessary, you will
find a separate drawing for clarification.
9.1Introduction
The LC7.x (development name “LC07”) is a new global chassis
for the year 2007 (LC7.1 is the analogue range, LC7.2 is the
digital range). It is the successor of the LC4.x chassis. The
LC7.xx LB covers a screen size of 19 to 23 inch with a new
styling called “BELT”. Some key components are:
•Audio: Sound processing is performed by a multi-standard
sound processor MSP4450 (item 7411)
•Video: Video processing is performed by the Trident video
processor SVP CV32-LF (item 7202).
For analogue reception, a standard IF demodulator is used,
whereas digital input signals (DVB-T) are processed through a
COFDM channel decoder together with an MPEG decoder
(integrated on the SSB). A so-called “Reneas” microprocessor
performs the control functionality.
9.1.1SSB Cell Layout
Description of the functional blocks (top side):
•In the middle, there is the Trident video processor.
•Above it, there is the Reneas micro processor.
•At the right hand top, there is the audio class D amplifier.
•The left part of the SSB contains the digital reception
circuit. In the LC4.x, this was a separate module, here it is
integrated on the SSB (same MOJO chipset).
•Between the digital reception part and the Trident part,
there is the DC/DC conversion circuit.
DC-DC CONVERSION
ANALOG TUNER
IF DEM
VIF SAW
SIF SAW
RENEAS
uP
TRIDENT
VIDEO
PROC.
HDMI
AUDIO CLASS D
H_16940_010.eps
260407
Figure 9-1 SSB top view
Description of the functional blocks (bottom side):
•The “Flash Mem” chip contains the software of the TV.
•The “Micronas” is the audio demodulator/processor.
•The two SDRAM’s are used for the video processing.
•The right part of the SSB contains the digital reception
circuit. This side contains the channel decoder.
•There are two connectors for ComPair:
– One on the other side of the tuner for I2C
communication with the Reneas micro processor.
– The other one at the digital reception part, for UART
communication with the MOJO.
EN 74LC7.1E LB9.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
AUDIO CLASS D
MEM
FLASH
MICRONAS
AUDIO PROC.
SDRAM
DC-DC CONVERSION
SDRAM
9.2Main Supply
The Main Power Supply Unit (PSU) in this chassis is a buy-in
“Jabil” supply unit and is a black-box for Service. When
defective, a new panel must be ordered and the defective panel
must be returned for repair, unless the main fuse of the unit is
broken. Always replace the fuse with one of the correct
specifications! This part is commonly available in the regular
market.
The Main Power Supply Unit delivers the following voltages to
the chassis:
•+12 V to SSB
•+12 V and -12 V to Audio Supply
•+5.2 V Standby voltage
•+3.3 V LVDS supply.
9.3DC/DC converters
A switch generates the +5.2 V (+5V_SW) from the +5.2 V
(+5V_STANDBY) supply voltage. For LCD sets, this switch is
mounted on-board the SSB. This results in the +5V_STANDBY
voltage(s), coming from the Power Supply Unit, is (are) used as
input for the on-board DC/DC converters.
They deliver the following voltages to the board:
•+3.3 V (+3V3_STBY)
•+5.2 V (+5V_SW)
•+1.8 V (+1V8S_SW)
•+34 V (+VTUN)
•+3.3 V (+3V3_SW)
Figure 9-2 SSB bottom view
H_16940_011.eps
060307
Figure 9-3 DC-DC converter block diagram
H_17160_005.eps
200907
An overview can be found in figure “DC-DC converter block
diagram”.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 75LC7.1E LB9.
9.4Front-End
This chassis uses different tuners depending on the region. An
overview of region-dependency can be found in table “Tuner
diversity”.
Table 9-1 Tuner diversity
RegionTunerType
EuropeTD1316AFHybrid
APUV1316Eanalogue
ChinaTEDE9analogue
LatamUV1338analogue
The TD1316AF hybrid tuner used, is capable of receiving both
analogue and digital (DVB-T) signals. For the application in this
chassis see figure “Tuner IF diagram”.
Tuner
Supply
+5V/+33V
4MHz
IF AGC
Figure 9-4 Tuner IF diagram
While receiving analogue signals, the signal coming from the
tuner is fed to the IF demodulator (through the SAW filters) and
then passed to the Trident Video Processor.
While receiving digital signals, the signal coming from the tuner
is fed to the channel decoder, to the MPEG decoder and then
to the Trident Video Processor.
UV1318Sanalogue
Video
SAW filter
Audio
SAW filter
RFAGC
Digital IF
36.16MHz
I2C
IF Demodulator
Switch IC
RF AGC_analogue
G_16860_054.eps
CVBS
2ndSIF
RF AGC_digital
I2C_analogue
I2C_digital
020207
RegionSAW_SWSystem
AP1B/G, D/K, I
China1B/G, D/K, I
LATAMn.a.M/N
0M/N
0M/N
The hybrid tuner TDA1316AF, used in Europe sets, needs to
be switched between digital and analogue mode. This is done
by the microcontroller via DVB_SW. Refer to table “Hybrid
tuner digital/analogue switching” for details.
Table 9-4 Hybrid tuner digital/analogue switching
RegionDVB_SWMode
Europe1analogue reception
0Digital reception
The pin assignment of all analogue tuners is equal and can be
found in table “Pin assignment analogue tuners”.
Table 9-5 Pin assignment analogue tuners
Pin number DescriptionDC voltage (V)
1RF AGC voltage3.3 - 4.5 (weak or no signal)
2n.c.
3I
4SCL0 to 3.3
5SDA0 to 3.3
6n.c.
7supply voltage5 ±0.25
8n.c.
9tuning supply voltage33
10n.c.
11TV IF output
2
C-bus address select0
< 3.3 (strong signal)
The pin assignment of the hybrid tuner can be found in table
“Pin assignment hybrid tuner”.
9.4.1Video IF Amplifier
The IF-filter is integrated in a SAW (Surface Acoustic Wave)
filter. One for filtering IF-video (item 1102) and one for IF-audio
(item 1103). The type of these filters depends on the standard
to be received (region-dependency). Some filters can be
switched to another standard, what makes them suitable for
applications in multi-standard platforms. An overview of the
SAW filter diversity can be found in table “SAW filter diversity”.
Table 9-2 SAW filter diversity
SAW filterSwitching Y/NRegionVideo/Audio
OFWK3953MNoEuropeVideo
OFWK9656MYesEuropeAudio
OFWK7265LYesAPVideo
OFWK9361LNoAPSound
OFWK3956LNoChinaVideo
OFWK3955LNoChinaVideo
OFWK9352LNoChinaAudio
OFWM1967LNoLATAMVideo/Audio
Switching is done by the microcontroller via SAW_SW. In table
“SAW filter switching” is explained how to address the different
system standards.
Table 9-3 SAW filter switching
RegionSAW_SWSystem
Europe1L’
0other systems
Table 9-6 Pin assignment hybrid tuner
Pin number DescriptionDC voltage (V)
1n.c.
2RF AGC voltage3.3 - 4.5 (weak or no signal)
3I
4SCL0 to 3.3
5SDA0 to 3.3
64 MHz reference output
7supply voltage5 ±0.25
8broadband IF output
9IF AGC voltage0 to 3
10narrowband IF output
11narrowband IF output
2
C-bus address select0
< 3.3 (strong signal)
9.4.2Automatic Gain Control
In the LC7.2x chassis (digital sets), the automatic gain control
depends on if the set is receiving a digital or an analogue
signal. During analogue reception, the hybrid tuner receives an
external AGC voltage, coming from the demodulator, to
perform automatic gain control. During digital reception, no
external AGC voltage is used but the tuners internal AGC loop
is used.
In the LC7.1x chassis (analogue sets), the tuner receives an
external AGC voltage, coming from the demodulator, to
perform automatic gain control.
EN 76LC7.1E LB9.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.5Video Processing
The video processing is completely handled by the Trident SVP
CX32 video processor which features:
•CVBS-input for analogue signals.
•RGB-input for digital (DVB-T) signals.
•Motion and “edge-adaptive” de-interlacing.
•Integrated ADC.
•Built-in 8-bit LVDS transmitter.
•Colour stretch.
•Skin colour enhancement.
•3D Digital Comb Video Decoder.
•Interlaced and Progressive Scan refresh.
•TeleText decoding.
•OSD and VBI/Closed Caption.
9.5.1Video Application
Analo gue
S CART1
S CART2
S IDE AV
On b o ard EX T3
EXT4
HDMI2
HDMI1
CVBS_R F
Front End
S C1_R_IN
S C1_G_IN
S C1_B_IN
S C1_CVBS _IN
S C1_FBL_IN
S C2_Y_C VBS _IN
FRONT_Y_CVB S _IN_T
FRONT_C_IN_T
HD_PB_IN
HD_PR_IN
DigDŽ Front End
(DVB-T
demodu la to r
a nd decoder)
HDMI
Decoder
HDMI_Y(0:7)
HDMI_Cb (0:7 )
HDMI_Cr(0:7)
S C2_C_IN
HD_Y_IN
IBO _R _IN
IBO _G _IN
IBO _B_ IN
IBO _CV BS _IN
CVBS1
PR_R2
Y_G2
PB_B2
PB_B3
FB1
CVBS_O UT1
PR_R3
F S2
Y_G3
C
Trident
Video Processor
SVP CX3 2
Y_G1
PB_B1
CVBS_O UT2
PR_R1
PC_R
PC_G
PC_B
F S1
G_16860_060.eps
CVBS
CVBS
150307
SCART 1 Mon. out
SCART 2 Mon. out
7311
Reneas
micro-
processor
7202
Trident CX
CS/WR/RD
CPU_RST/WR/ RD/CE
A[0:19 ]
D[0:7]
A[0:7 ]
D[0:7]
CLKE/CS0/RAS/CAS/WE
CX_BA0/BA1 /MCLK/
CLKE/CS0/RAS/CAS/WE
CX_BA0/BA1 /MCLK/
CX_MA[0:11]
DQ[0:15]
CX_MA[0:11]
DQ[16:31]
7310
1MB
Flash Memory
7204
8MB
SDRAM
7205
8MB
SDRAM
G_16860_062
220207
Figure 9-6 Memory block diagram
Control signals CPU_RST, WR, RD and CE, address lines
A[0:19] and data lines D[0:7] are used for transferring data
between the microprocessor (item 7311) and the flash memory
(item 7310). Control signals CS, WR and RD, address lines
A[0:7] and data lines D[0:7] are used for transferring data
between the Trident Video Processor (item 7202) and the
microprocessor (item 7311). Control signals CX_BA0,
CX_BA1, CX_MCLK, CX_CLKE, CX_CS0, CX_RAS, CX_CAS
and CX_WE, address lines CX_MA[0:11] and data lines
DQ[0:15] are used for transferring data between the Trident
Video Processor and the SDRAM ICs (items 7204 and 7205).
Figure 9-5 Block diagram video processing
“Block diagram video processing” shows the input and output
signals to and from the Trident Video Processor in EU
applications.
During analogue reception, a CVBS signal coming from the
analogue front-end is fed to the video processor via pin
CVBS1. During digital reception, the video signal coming from
the MPEG decoder (MOJO) is fed to the video processor via
pins FS1, PC_B, PC_G and PC_R.
The video processor also interfaces the SCART1 & 2 input,
side AV, EXT4 (HD where applicable) and HDMI1 & 2 input.
Through the SCART1 & 2 connectors, a monitor output is
foreseen.
9.5.2Additional LVDS Interface Panel
An additional LVDS Interface Panel acts as interface between
the SSB and the LCD panel. This is a buy-in panel and
therefore a black-box for Service.
9.6Memory addressing
Figure “Memory block diagram” shows the interconnection
between the microprocessor, the FLASH memory, the Trident
Video Processor and the SDRAM.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 77LC7.1E LB9.
9.7Audio Processing
The audio decoding is done entirely via the Multistandard
Sound Processor (MSP) 4450P (item 7411).
This processor covers the processing of both analogue and
(NICAM) digital input signals by processing the (analogue) IF
signal-in to processed (analogue) AF-out (baseband audio). An
internal 40 ms (stereo) audio delay line (LIP SYNC) is foreseen
and therefore no external delay line is necessary.
All internal clock signals are derived from an external
18.432 MHz oscillator, which, in NICAM or I
turn is locked to the corresponding source.
The following functionality is included:
•Automatic Standard Detection (ASD) automatically detects
the actual broadcasted TV standard
•Automatic Sound Select (ASS) automatically switches
(without any I
2
C-bus action) between mono/stereo/
bilingual mode when the broadcast mode changes.
9.7.1Audio Application
DAC
MSP 4450P
ANA_IN1+
I2S_DA_IN1
I2
S_WS
I2S_CL
SC1-IN
SC2-IN
SC3-IN
SC4-IN
SC5-IN
DACM
DACA
SC1-OUT
SC2-OUT
ANALOGUE
FRONT END
DVB / MOJO
(if present)
SCART 1 IN
SCART 2 IN
COMP IN
SIDE IN
HDMI IN
HDMI
2nd SIF
I2S1
AUDIO
IC
Figure 9-7 Block diagram audio processing - EU application
In EU applications, the MSP features:
•Sound IF input for signals coming from the analogue
front-end
•Three I
2
S-inputs for signals (“DATA”, “CLK” and “WS”)
coming from the MOJO in case of digital reception
•Five analogue inputs: for EXT1 to EXT4 and HDMI
•Loudspeaker output path
•Headphone output path
•SCART-1 output path (RF)
•SCART-2 output path (WYSIWYG = monitor).
Digital audio signals coming from HDMI sources are fed to a
digital-to-analogue converter and then fed to the MSP.
In case of reception of digital TV signals, digital audio signals
coming from the MOJO are directly fed to the MSP via the
I2S_DA_IN1, I2S_WS1 and I2S_CL1 lines. This ensures a
“true digital path”.
2
S-mode, on its
CLASS D
AMPLIFIER
HP AMPLIFIER
SCART 1 OUT
SCART 2 OUT
G_16860_055.eps
LOUDSPEAKER
090307
Principle
+V
-V
G_16860_080.eps
020207
Figure 9-8 Principle Class-D Amplifier
The Class D amplifier works by varying the duty cycle of a
Pulse Width Modulated (PWM) signal.
By comparing the input voltage to a triangle wave, the amplifier
increases duty cycle to increase output voltage, and decreases
duty cycle to decrease output voltage.
The output transistors of a Class D amplifier switch from 'full off'
to 'full on' (saturated) and then back again, spending very little
time in the linear region in between. Therefore, very little power
is lost to heat. If the transistors have a low 'on' resistance
(RDS(ON)), little voltage is dropped across them, further
reducing losses.
A Low Pass Filter at the output passes only the average of the
output wave, which is an amplified version of the input signal.
In order to keep the distortion low, negative feedback is
applied.
The advantage of Class D is increased efficiency (= less heat
dissipation). Class D amplifiers can drive the same output
power as a Class AB amplifier using less supply current.
The disadvantage is the large output filter. The main reason
for this filter is that the switching waveform results in maximum
current flow. This causes more loss in the load, which causes
lower efficiency. An LC filter with a cut-off frequency less than
the Class D switching frequency, allows the switching current
to flow through the filter instead of the load, thus reducing the
overall loss and increasing the efficiency.
DC-protection
A DC-detection circuit is foreseen to protect the speakers. It is
built around three transistors (items 7A05 to 7A07) and
generates a protection signal (DC_PROT) to the
microprocessor in case of a DC failure in the Class D
amplifiers.
The microprocessor (item 7311) controls the audio part with the
following control lines:
•MUTEn: used to mute the Class D amplifiers
•ANTI_PLOP: used to detect any DC failure in the Class D
amplifiers
•DC_PROT: used to detect any DC failure in the Class D
amplifiers.
9.7.2Audio Amplifier
The audio amplifier is an integrated class-D amplifier
(TDA8932T, item 7A01). It combines a good performance with
a high efficiency, resulting in a big reduction in heat generation.
EN 78LC7.1E LB9.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.8HDMI
9.8.1Introduction
Note: Text below is an excerpt from the ”HDMI Specification”
that is issued by the HDMI founders (see http://www.hdmi.org).
The High-Definition Multimedia Interface is developed for
transmitting digital signals from audiovisual sources to
television sets, projectors and other video displays.
HDMI can carry high quality multi-channel audio data and can
carry all standard and high-definition consumer electronics
video formats. Content protection technology is available.
HDMI can also carry control and status information in both
directions.
HDMI is backward compatible with DVI (1.0). Compared with
DVI, HDMI offers extra:
•YUV 4:4:4 (3 x 8-bit) or 4:2:2 (up to 2 x 12-bit), where DVI
offers only RGB 4:4:4 (3 x 8 bit).
•Digital audio in CD quality (16-bit, 32/44.1/48 kHz), higher
quality available (8 channels, 192 kHz).
•Remote control via CEC bus (Consumer Electronics
Control): allows user to control all HDMI devices with the
TV's remote control and menus.
•Smaller connector (SCART successor).
•Less cables: e.g. from 10 audio/9 video cables to 3 HDMI
cables.
9.8.2Implementation
The IC used is the Sil 9025 (Silicon Image) third generation
HDMI receiver (item 7817 on the SSB) with following features:
•Dual HDMI input connector.
•Two EEPROMS to support EDID.
•HDMI audio.
2
•I
S output to DACs which operating freq. of 32 to 192 kHz.
•Integrated HDCP decryption engine.
•Built-in pre-programmed HDCP keys for copy protection.
•Colour space conversion RGB to YCbCr.
•“Hot Plug Reset” signal.
Hot plug
HDMI_HOTPLUG_RESET
Reset
HDMI 1
HDMI 2
COMP_AUDIO LR
for DVI audio input
only
EDID
EDID
DDC Reset
(Port 1)
HDMI
Receiver
Sil9025
(Port 2)
Figure 9-9 HDMI implementation
HDMI connectors 1 and 2 are connected to resp. ports 1 and 2
of the HDMI receiver. The ports cannot be activated at the
same moment. Switching is controlled by software.
“Hot Plug Reset” and “DDC Reset” are controlled by the
microprocessor.
The HDMI receiver will convert all RGB or YCbCr 4:2:2 signals
to 24-bit YCbCr 4:4:4. When it receives a YCbCr 4:4:4 signal it
will just pass the signal directly to the Trident Video Processor.
algorithm that adapts aspect ratio to
remove horizontal black bars; keeping
up 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
AUOAcer Unipack Optronics
APAsia Pacific
ARAspect Ratio: 4 by 3 or 16 by 9
ASDAutomatic Standard Detection
AVAudio Video
B/GMonochrome TV system. Sound
carrier distance is 5.5 MHz
BTSCBroadcast Television System
for a CAM in a set top box
CLConstant Level: audio output to
connect with an external amplifier
CLUTColour Look Up Table
ComPairComputer aided rePair
COFDMCoded Orthogonal Frequency Division
Multiplexing; A multiplexing technique
that distributes the data to be
transmitted over many carriers
CSMCustomer Service Mode
CVBSComposite Video Blanking and
Synchronisation
CVBS-MONCVBS monitor signal
CVBS-TER-OUTCVBS terrestrial out
CVIComponent Video Input
DACDigital to analogue Converter
DBEDynamic Bass Enhancement: extra
low frequency amplification
DDCDisplay Data Channel; is a part of the
"Plug and Play" feature
DFUDirections For Use: owner's manual
DNRDynamic Noise Reduction
DRAMDynamic RAM
DSPDigital Signal Processing
DSTDealer Service Tool: special
(European) remote control designed
for service technicians
DTSDigital Theatre Sound
DVB(T)Digital Video Broadcast; An MPEG2
I, L is all bands except for Band I
LPLLG Philips LCD
LSLoud Speaker
LVDSLow Voltage Differential Signalling,
data transmission system for high
speed and low EMI communication.
M/NMonochrome TV system. Sound
carrier distance is 4.5 MHz
MOSFETMetal Oxide Semiconductor Field
Effect Transistor
MPEGMotion Pictures Experts Group
MSPMulti-standard Sound Processor: ITT
sound decoder
MUTEMUTE Line
NAFTANorth American Free Trade
Association: Trade agreement
between Canada, USA and Mexico
NCNot Connected
NICAMNear Instantaneous Compounded
Audio Multiplexing. This is a digital
sound system, used mainly in Europe.
NTSCNational Television Standard
Committee. Colour system used
mainly in North America and Japan.
Colour 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 (for example, options)
O/COpen Circuit
ON/OFF LEDOn/Off control signal for the LED
OADOver the Air Download
OSDOn Screen Display
PALPhase Alternating Line. Colour system
used mainly in Western Europe
(colour carrier = 4.433619 MHz) and
South America (colour carrier PAL M =
3.575612 MHz and PAL N = 3.582056
MHz)
PCPersonal Computer
PCBPrinted Circuit Board (or PWB)
PDPPlasma Display Panel
PIGPicture In Graphic
PIPPicture In Picture
PLLPhase Locked Loop. Used, for
example, in FST tuning systems. The
customer can directly provide the
desired frequency
PSUPower Supply Unit
PWBPrinted Wiring Board (or PCB)
RAMRandom Access Memory
RCRemote Control transmitter
RC5 (6)Remote Control system 5 (6), the
signal from the remote control receiver
RFRadio Frequency
RGBRed, Green, and Blue. The primary
and Vertical sync
ROMRead Only Memory
SAMService Alignment Mode
SCSandCastle: two-level pulse derived
from sync signals
SC1-OUTSCART output of the MSP audio IC
SC2-OUTSCART output of the MSP audio IC
S/CShort Circuit
SCLClock signal on I2C bus
SDStandard Definition: 480i, 576i
SDAData signal on I2C bus
SDISamsung Display Industry
SDMService Default Mode
SDRAMSynchronous DRAM
SECAMSEequence Couleur Avec Memoire.
Colour system used mainly in France
and Eastern Europe. Colour carriers =
4.406250 MHz and 4.250000 MHz
SIFSound Intermediate Frequency
SMPSSwitch Mode Power Supply
SNDSouND
SOPSSelf Oscillating Power Supply
S/PDIFSony Philips Digital InterFace
SRAMStatic RAM
SSBSmall Signal Board
STBYStand-by
SVHSSuper Video Home System
SWSub Woofer / SoftWare / Switch
THDTotal Harmonic Distortion
TXTTeleteXT
uPMicroprocessor
EN 80LC7.1E LB9.
VLVariable Level out: processed audio
output toward external amplifier
VCRVideo Cassette Recorder
VGAVideo Graphics Array
WDWatch Dog
WYSIWYRWhat You See Is What You Record:
record selection that follows main
picture and sound
XTALQuartz crystal
YPbPrComponent video (Y= Luminance, Pb/
Pr= Colour difference signals B-Y and
R-Y, other amplitudes w.r.t. to YUV)
Y/CVideo related signals: Y consists of
luminance signal, blanking level and
sync; C consists of colour signal.
Y-OUTLuminance-signal
YUVBaseband component video (Y=
Luminance, U/V= Colour difference
signals)
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.10 IC Data Sheets
This section shows the internal block diagrams and pin layouts
of ICs that are drawn as "black boxes" in the electrical diagrams
(with the exception of "memory" and "logic" ICs).
9.10.1 Diagram B04B, Type SVP CX32 (IC7202), Trident Video processor