Copyright 2005 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.
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
PC VGA/DVI-2: Video 2fH RGB/YPbPr - In
1
5
6
11
10
15
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050404
Figure 1-4 VGA Connector
1 -Video Red/Pr 0.7 V
2 -Video Green/Y 0.7 V
3 -Video Blue/Pb 0.7 V
4-n.c.
/ 75 ohm j
PP
/ 75 ohm j
PP
/ 75 ohm j
PP
5 -Ground Gnd H
6 -Ground Red Gnd H
7 -Ground Green Gnd H
8 -Ground Blue Gnd H
9-+5V
10 - Ground Sync Gnd H
+5 V j
DC
EN 4LC4.8A AA1.
1.3Chassis Overview
AUDIO STANDBY
SA
PANEL
Technical Specifications, Connections, and Chassis Overview
LCD PANEL
SMALL
B
SIGNAL BOARD
SIDE CONTROL
E
BOARD
Figure 1-5 Chassis overview
POWER SUPPLY
PANEL
SIDE I/O PANEL
LED PANEL
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A
D
J
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Safety Instructions, Warnings, and Notes
2.Safety Instructions, Warnings, and Notes
EN 5LC4.8A AA2.
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.
2.3Notes
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).
•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.
•The semiconductors indicated in the circuit diagram and in
the parts lists, are interchangeable per position with the
semiconductors in the unit, irrespective of the type
indication on these semiconductors.
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.
-9
), or pico-farads (p= x10
-12
-6
),
).
2.2Warnings
•All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD w). Careless handling
during repair can reduce life drastically. Make sure that,
during repair, you are connected with the same potential as
the mass of the set by a wristband with resistance. Keep
components and tools also at this same potential. Available
ESD protection equipment:
– Complete kit ESD3 (small tablemat, wristband,
connection box, extension cable and earth cable) 4822
310 10671.
– Wristband tester 4822 344 13999.
•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.
2.3.3Rework on BGA (Ball Grid Array) ICs
General
Although (LF)BGA assembly yields are very high, there may
still be a requirement for component rework. By rework, we
mean the process of removing the component from the PWB
and replacing it with a new component. If an (LF)BGA is
removed from a PWB, the solder balls of the component are
deformed drastically so the removed (LF)BGA has to be
discarded.
Device Removal
As is the case with any component that, is being removed, it is
essential when removing an (LF)BGA, that the board, tracks,
solder lands, or surrounding components are not damaged. To
remove an (LF)BGA, the board must be uniformly heated to a
temperature close to the reflow soldering temperature.
A uniform temperature reduces the risk of warping the PWB. To
do this, we recommend that the board is heated until it is certain
that all the joints are molten. Then carefully pull the component
off the board with a vacuum nozzle. For the appropriate
temperature profiles, see the IC data sheet.
Area Preparation
When the component has been removed, the vacant IC area
must be cleaned before replacing the (LF)BGA.
Removing an IC often leaves varying amounts of solder on the
mounting lands. This excessive solder can be removed with
either a solder sucker or solder wick. The remaining flux can be
removed with a brush and cleaning agent.
EN 6LC4.8A AA2.
Safety Instructions, Warnings, and Notes
After the board is properly cleaned and inspected, apply flux on
the solder lands and on the connection balls of the (LF)BGA.
Note: Do not apply solder paste, as this has been shown to
result in problems during re-soldering.
Device Replacement
The last step in the repair process is to solder the new
component on the board. Ideally, the (LF)BGA should be
aligned under a microscope or magnifying glass. If this is not
possible, try to align the (LF)BGA with any board markers.
So as not to damage neighbouring components, it may be
necessary to reduce some temperatures and times.
More Information
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 “Workshop Information”. Here you will find
Information on how to deal with BGA-ICs.
2.3.4Lead-free Solder
Philips CE is producing lead-free sets (PBF) from 1.1.2005
onwards.
Identification: The bottom line of a type plate gives a 14-digit
serial number. Digits 5 and 6 refer to the production year, digits
7 and 8 refer to production week (in example below it is 1991
week 18).
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.
•Use only original spare-parts listed in the Service-Manuals.
Not listed standard material (commodities) has to be
purchased at external companies.
•Special information for lead-free BGA ICs: these ICs will be
delivered in so-called "dry-packaging" to protect the IC
against moisture. This packaging may only be opened
shortly before it is used (soldered). Otherwise the body of
the IC gets "wet" inside and during the heating time the
structure of the IC will be destroyed due to high (steam-)
pressure inside the body. If the packaging was opened
before usage, the IC has to be heated up for some hours
(around 90°C) for drying (think of ESD-protection!).
Do not re-use BGAs at all!
•For sets produced before 1.1.2005, containing leaded
soldering tin and components, all needed spare parts will
be available till the end of the service period. For the repair
of such sets nothing changes.
In case of doubt whether the board is lead-free or not (or with
mixed technologies), you can use the following method:
•Always use the highest temperature to solder, when using
SAC305 (see also instructions below).
•De-solder thoroughly (clean solder joints to avoid the
mixing of two alloys).
E_06532_024.eps
230205
Figure 2-1 Serial number example
Regardless of the special lead-free logo (which is not always
indicated), one must treat all sets from this date onwards
according to the rules as described below.
P
b
Figure 2-2 Lead-free logo
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 stabilise 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 stabilised 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.
Caution: 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 "Workshop information".
For additional questions please contact your local repair help
desk.
2.3.5Practical Service Precautions
•It makes sense to avoid exposure to electrical shock.
While some sources are expected to have a possible
dangerous impact, others of quite high potential are of
limited current and are sometimes held in less regard.
•Always respect voltages. While some may not be
dangerous in themselves, they can cause unexpected
reactions that are best avoided. Before reaching into a
powered TV set, it is best to test the high voltage insulation.
It is easy to do, and is a good service precaution.
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 disassembling instructions in described order.
4.2Service Positions
For easy servicing of this set, there are a few possibilities
created:
•The buffers from the packaging (see figure "Rear cover").
•Foam bars (created for service).
•Aluminium service stands (created for Service).
4.2.1Foam Bars
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Figure 4-2 Foam bars
Figure 4-1 Cable dressing
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F_15420_033.eps
The foam bars (order code 3122 785 90580 for two pieces) can
be used for all types and sizes of Flat TVs. 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
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Figure 4-3 Aluminium stands (drawing of MkI)
060605
Mechanical Instructions
EN 9LC4.8A AA4.
The aluminium stands (order code 3122 785 90480) can be
mounted with the back cover removed or still left on. So, the
stand can be used to store products or to do measurements. It
is also very suitable to perform duration tests without taking
much space, without having the risk of overheating, or the risk
of products falling. The stands can be mounted and removed
quick and easy with use of the delivered screws that can be
tightened and loosened manually without the use of tools. See
figure above.
Note: Only use the delivered screws to mount the monitor to
the stands.
4.3Assy/Panel Removal
4.3.1Rear Cover
3
3
4
3
3
4
3
Figure 4-4 Rear cover
1
2
3
4
4
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3
3
3
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4.3.2Side I/O Panel
2
1
Figure 4-5 Side I/O panel
1. Disconnect the cable (1) from the panel.
2. Remove the fixation screw (2) and lift the panel out of its
brackets.
F_15420_035.eps
070605
Warning: Disconnect the mains power cord before you remove
the rear cover.
1. Remove the screws that secure the rear cover (see Figure
“Rear cover screws”); these are:
a) 4 x big torx screws (1) for securing the stand/wall mount;
b) 5 x small torx screws (2) near the rear I/O panel;
c) 22 x small torx screws (3) that secure the loudspeaker
compartments [6 of these screws are in sunken holes (4) ]
and along the edges of the rear cover.
2. Lift the rear cover from the cabinet cautiously. Make sure
that wires and other internal components are not damaged
during cover removal.
EN 10LC4.8A AA4.
Mechanical Instructions
4.3.3LED Panel
1
2
Figure 4-6 LED panel
1. Remove the fixation screws (1) and take the panel out of its
brackets.
2. Disconnect the cable (2) from the panel.
4.3.4Keyboard Control Panel
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4.3.5SSB Board Cover Shield
1
3
Figure 4-8 SSB cover shield
33
3
2
F_15420_038.eps
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2
Figure 4-7 Keyboard control panel
1. Remove the panel (1) from its brackets (2).
2. Disconnect the cable (3) from the panel.
1
3
F_15420_037.eps
Figure 4-9 VGA connector and rear I/O panel screws
1. Very cautiously disconnect the LVDS cable (1) from the
SSB panel (see Figure “SSB board cover shield”). Notice
that this cable is very fragile.
2. Remove all other cables (2) from the SSB board (see
Figure “SSB board cover shield”).
3. Remove the fixation screws (3), see Figure “SSB board
cover shield” and remove the SSB shield with the SSB
board inside, and the rear I/O panel still attached to it.
4. Remove the fixation screws (3) from the VGA connector
and from the rear panel, see Figure “VGA connector and
rear panel screws”, and remove the rear I/O panel from the
SSB board.
5. Remove the upper part of the shield from the SSB panel,
by unhooking it from its brackets. Be careful not to damage
the LVDS connector on the SSB board, see Figure “SSB
board cover shield”.
4.3.6SSB
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1
F_15420_040.eps
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Figure 4-10 SSB
1. Remove the two fixation screws (1) that secure the SSB
board on the lower part of the SSB shielding, see Figure
“SSB”.
2. Remove the SSB panel.
Mechanical Instructions
EN 11LC4.8A AA4.
4.3.7Power Supply Panel
1
4.3.8Class D Audio Amplifier/STBY Power Supply Panel
2
1
1
1
2
F_15420_042.eps
2
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Figure 4-12 Class D audio amplifier/STBY power supply panel
1. Disconnect all cables (1) from the panel.
2. Remove the fixation screws (2) from the panel.
3. Take the panel out of its brackets.
1
F_15420_041.eps
Figure 4-11 Power supply panel
1. Disconnect all cables (1) from the panel.
2. Remove the fixation screws (2) from the panel.
3. Take the panel out of its brackets.
210605
EN 12LC4.8A AA4.
4.3.9LCD Panel
Mechanical Instructions
2
1
Figure 4-15 LCD panel fixation screws
F_15420_045.eps
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Figure 4-13 “L” and “R” loudspeaker cables and cable clamps
F_15420_044.eps
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Figure 4-14 LVDS connector
Figure 4-16 LCD panel connector
Figure 4-17 LCD panel
F_15420_046.eps
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210705
Mechanical Instructions
EN 13LC4.8A AA4.
To remove the LCD-panel, carry out the following steps:
1. Disconnect the cables (1) from the “L” and the “R”
loudspeakers and remove the cables from their cable
clamps (1, see Figure “L” and “R” loudspeaker cables and
cable clamps”).
2. Important: Unplug the LVDS connector (1) on the LCD
panel (see Figure “LVDS connector”).
Be careful, as this is a very fragile connector!
3. Unplug the connectors (1) from the Side I/O panel and from
the LED panel and remove the cables from their cable
clamps (see Figures “Side I/O panel” and “LED panel” at
the beginning of this chapter).
4. Take the Keyboard Control panel out of its brackets and
remove the Keyboard Control cable from its cable clamp
(see Figure “Keyboard Control panel” at the beginning of
this chapter).
5. Remove the fixation screws from the LCD panel (see
Figure “LCD panel fixation screws”; the two types of torx
screws, 6 small ones and 4 large ones, are indicated by the
two screwdrivers).
6. Unplug the connector of the LCD panel flatcable, at the “R”
speaker side of the TV set, from connector 1316 on the
lower left side of the Class D audio amplifier/STBY power
supply panel (see Figure “Class D audio amplifier/STBY
power supply panel”).
7. Lift the “L” speaker side of the metal frame 10 cm from the
LCD panel and hold it in this position. Now, loosen the LCD
flatcable and the “L” loudspeaker cable from their clamps,
and disconnect the LCD flatcable connector from the LCD
panel (see Figure “LCD panel connector”).
8. Lift the metal frame (together with all PWBs) from the LCD
panel.
Take care not to damage the fragile LVDS cable.
9. After removal of the metal frame, you can lift the LCD panel
(1) from its plastic frame (see Figure “LCD panel”).
10. If the plastic frame is damaged, replace it by a new frame,
after removing the loudspeakers, the Side I/O panel, the
Keyboard Control panel, and the LED panel.
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 positions. See Figure "Cable
dressing". Be careful with the fragile LVDS cable.
EN 14LC4.8A AA5.
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 Problems and Solving Tips Related to CSM
5.4 Service Tools
5.5 Error Codes
5.6 The Blinking LED Procedure
5.7 Fault Finding and Repair Tips
5.1Test Points
This chassis is equipped with test points in the service printing.
In the schematics test points are identified with a rectangle box
around Fxxx or Ixxx.
Perform measurements under the following conditions:
•Television set in Service Default Alignment Mode.
•Video input: Colour bar signal.
•Audio input: 3 kHz left channel, 1 kHz right channel.
5.2Service Modes
Service Default mode (SDM) and Service Alignment Mode
(SAM) offers several features for the service technician, while
the Customer Service Mode (CSM) is used for communication
between the call centre and the customer.
This chassis also offers the option of using ComPair, a
hardware interface between a computer and the TV chassis. It
offers the possibilities of structured troubleshooting, error code
reading, and software version readout for all chassis.
Minimum requirements for ComPair: a Pentium processor, a
Windows OS, and a CD-ROM drive (see also paragraph
"ComPair").
How to Enter
To enter 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 "Service" jumpers on the TV board during cold start
and apply mains (see Figure "Service jumpers"). Then
press the mains button (remove the short after start-up).
Caution: Entering SDM by shorting "Service" jumpers will
override the +8V-protection. Do this only for a short period.
When doing this, the service-technician must know exactly
what he is doing, as it could damage the television set.
•Or via ComPair.
1
F_15270_053.eps
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Figure 5-1 Service jumpers
5.2.1Service Default Mode (SDM)
Purpose
•To create a predefined setting for measurements to be
made.
•To override software protections.
•To start the blinking LED procedure.
•To inspect the error buffer.
•To check the life timer.
Specifications
•Tuning frequency: 61.25 MHz.
•Colour system: NTSC.
•All picture settings at 50% (brightness, colour contrast,
hue).
•Bass, treble, and balance at 50 %; volume at 25 %.
•All service-unfriendly modes (if present) are disabled. The
service unfriendly modes are:
– Timer / Sleep timer.
– Child / parental lock.
–Blue mute.
– Hotel / hospital mode.
– Auto shut off (when no “IDENT” video signal is
received for 15 minutes).
– Skipping of non-favourite presets / channels.
– Auto-storage of personal presets.
– Auto user menu time-out.
– Auto Volume Levelling (AVL).
After entering 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.
•When you press the MENU button on the remote control,
the set will switch on the normal user menu in the SDM
mode.
•On the TV, press and hold the VOLUME DOWN and press
the CHANNEL DOWN for a few seconds, to switch from
SDM to SAM and reverse.
How to Exit
Switch the set to STANDBY by pressing the mains button on
the remote control transmitter or the television set.
If you turn the television set off by removing the mains (i.e.,
unplugging the television) without using the mains button, the
television set will remain in SDM when mains is re-applied, and
the error buffer is not cleared.
5.2.2Service 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.
•AKB switching.
•Software alignments (Tuner, White Tone, Geometry &
Audio).
•NVM Editor.
•ComPair Mode switching.
How to Enter
To enter 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 (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.
00035 LC4XAP1 1.15/S4XPVX 1.23 SAM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
. Clear Clear ?
. Options
. Tuner
. White Tone
. Audio
. NVM Editor
. SC NVM Editor
. ComPair Mode On
Figure 5-3 SAM menu
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Menu Explanation
1. LLLLL. This represents the run timer. The run timer counts
normal operation hours, but does not count standby hours.
2. AAABCD-X.Y. This is the software identification of the
main microprocessor:
– A= the project name (LC04.x).
– B= the region: E= Europe, A= Asia Pacific, U= NAFTA,
•LATAM and NAFTA: N= Stereo non-dBx, S=
Stereo dBx.
•Asian Pacific: T= TXT, N= non-TXT, C= NTSC.
•ALL regions: M= mono, D= DVD, Q= Mk2.
– D= the language cluster number.
– X= the main software version number (updated with a
major change that is incompatible with previous
versions).
– Y= the sub software version number (updated with a
minor change that is compatible with previous
versions).
3. EEEEE-F.GG. This is the software identification of the
Scaler:
– EEEEEE= the scaler sw cluster
– F= the main sw version no.
– GG= the sub-version no.
4. SAM. Indication of the Service Alignment Mode.
5. Error Buffer. Shows all errors detected since the last time
the buffer was erased. Five errors possible.
6. Option Bytes. Used to set the option bytes. See “Options”
in the Alignments section for a detailed description. Seven
codes are possible.
7. 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.
8. Options. Used to set the option bits. See “Options” in the
Alignments section for a detailed description.
9. Tuner. Used to align the tuner. See “Tuner” in the
Alignments section for a detailed description.
10. White Tone. Used to align the white tone. See “White
Tone” in the Alignments section for a detailed description.
11. Audio. No audio alignment is necessary for this television
set.
12. NVM Editor. Can be used to change the NVM data in the
television set. See table “NVM data” further on.
13. SC NVM Editor. Can be used to edit Scaler NVM.
14. ComPaIr. Can be used to switch on the television to In
System Programming (ISP) mode, for software uploading
via ComPair.
Caution: When this mode is selected without ComPair
connected, the TV will be blocked. Remove the AC power
to reset the TV.
How to Navigate
•In SAM, select menu items with the MENU UP/DOWN keys
on the remote control transmitter. The selected item will be
highlighted. 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 submenu.
•In SAM, when you press the MENU button twice, the set
will switch to the normal user menus (with the SAM mode
still active in the background). To return to the SAM menu
press the MENU or STATUS/EXIT button.
•When you press the MENU key in while in a submenu, you
will return to the previous menu.
EN 16LC4.8A AA5.
Service Modes, Error Codes, and Fault Finding
How to Store SAM Settings
To store the settings changed in SAM mode, 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.
If you turn the television set “off” by removing the mains (i.e.,
unplugging the television) without using the mains button, the
television set will remain in SAM when mains is re-applied, and
the error buffer is not cleared.
5.2.3Customer Service Mode (CSM)
Purpose
The Customer Service Mode shows error codes and
information on the TV’s operation settings. The call centre can
instruct the customer (by telephone) to enter CSM in order to
identify the status of the set. This helps the call centre to
diagnose problems and failures in the TV set before making a
service call.
The CSM is a read-only mode; therefore, modifications are not
possible in this mode.
How to Enter
To enter 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:
3 OP 000 057 140 032 120 128 000
4
5
6 NOT TUNED
7 PAL
8 STEREO
9 CO 50 CL 50 BR 50
0 AVL Off
8. Displays the detected Audio (e.g. stereo/mono).
9. Displays the picture setting information.
10. Displays the sound setting information.
How to Exit
To exit CSM, use one of the following methods:
•Press the MENU, STATUS/EXIT, or POWER button on the
remote control transmitter.
•Press the POWER button on the television set.
5.3Problems and Solving Tips Related to CSM
5.3.1Picture Problems
Note: The problems described below are all related to the TV
settings. The procedures used to change the value (or status)
of the different settings are described.
Picture too Dark or too Bright
If:
•The picture improves when you press the AUTO PICTURE
button on the remote control transmitter, or
•The picture improves when you enter the Customer
Service Mode,
Then:
1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.
2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.
3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu.
4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.
5. Use the MENU UP/DOWN keys (if necessary) to select
BRIGHTNESS.
6. Press the MENU LEFT/RIGHT keys to increase or
decrease the BRIGHTNESS value.
7. Use the MENU UP/DOWN keys to select PICTURE.
8. Press the MENU LEFT/RIGHT keys to increase or
decrease the PICTURE value.
9. Press the MENU button on the remote control transmitter
twice to exit the user menu.
10. The new PERSONAL preference values are automatically
stored.
E_15420_054.eps
180705
Figure 5-4 CSM menu
Menu Explanation
1. Indication of the decimal value of the operation hours
counter, Software identification of the main microprocessor
(see "Service Default or Alignment Mode" for an
explanation), and the service mode (CSM = Customer
Service Mode).
2. Displays the last five errors detected in the error code
buffer.
3. Displays the option bytes.
4. Displays the type number version of the set.
5. Reserved item for P3C call centres (AKBS stands for
Advanced Knowledge Base System).
6. Indicates the television is receiving an "IDENT" signal on
the selected source. If no "IDENT" signal is detected, the
display will read "NOT TUNED"
7. Displays the detected Colour system (e.g. PAL/NTSC).
White Line around Picture Elements and Text
If:
The picture improves after you have pressed the AUTO
PICTURE button on the remote control transmitter,
Then:
1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.
2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.
3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu.
4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.
5. Use the MENU UP/DOWN keys to select SHARPNESS.
6. Press the MENU LEFT key to decrease the SHARPNESS
value.
7. Press the MENU button on the remote control transmitter
twice to exit the user menu.
8. The new PERSONAL preference value is automatically
stored.
Service Modes, Error Codes, and Fault Finding
EN 17LC4.8A AA5.
Snowy Picture
Check CSM line 6. If this line reads “Not Tuned”, check the
following:
•Antenna not connected. Connect the antenna.
•No antenna signal or bad antenna signal. Connect a proper
antenna signal.
•The tuner is faulty (in this case line 2, the Error Buffer line,
will contain error number 10). Check the tuner and replace/
repair the tuner if necessary.
Black and White Picture
If:
•The picture improves after you have pressed the AUTO
PICTURE button on the remote control transmitter,
Then:
1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.
2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.
3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu.
4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.
5. Use the MENU UP/DOWN keys to select COLOR.
6. Press the MENU RIGHT key to increase the COLOR value.
7. Press the MENU button on the remote control transmitter
twice to exit the user menu.
8. The new PERSONAL preference value is automatically
stored.
Menu Text not Sharp Enough
If:
•The picture improves after you have pressed the AUTO
PICTURE button on the remote control transmitter,
Then:
1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.
2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.
3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu.
4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.
5. Use the MENU UP/DOWN keys to select PICTURE.
6. Press the MENU LEFT key to decrease the PICTURE
value.
7. Press the MENU button on the remote control transmitter
twice to exit the user menu.
8. The new PERSONAL preference value is automatically
stored.
2
You do not have to know anything about I
C 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
microprocessor is working) and all repair information is
directly available. When ComPair is installed together with
the Force/SearchMan electronic manual of the defective
chassis, schematics and PWBs are only a mouse click
away.
Specifications
ComPair consists of a Windows based fault finding program
and an interface box between PC and the (defective) product.
The ComPair interface box is connected to the PC via a serial
(or RS-232) cable.
For this chassis, the ComPair interface box and the TV
communicate via a bi-directional service cable via the service
connector(s).
The ComPair faultfinding program is able to determine the
problem of the defective television. ComPair can gather
diagnostic information in two ways:
•Automatically (by communicating with the television):
ComPair can automatically read out the contents of the
entire error buffer. Diagnosis is done on I
ComPair can access the I
ComPair can send and receive I
2
C/UART bus of the television.
2
2
C/UART level.
C/UART commands to
the microcontroller of the television. In this way, it is
possible for ComPair to communicate (read and write) to
devices on the I
2
C/UART buses of the TV-set.
•Manually (by asking questions to you): Automatic
diagnosis is only possible if the microcontroller of the
television is working correctly and only to a certain extent.
When this is not the case, ComPair will guide you through
the faultfinding tree by asking you questions (e.g. Does the
screen give a picture? Click on the correct answer: YES /
NO) and showing you examples (e.g. Measure test-point I7
and click on the correct oscillogram you see on the
oscilloscope). You can answer by clicking on a link (e.g.
text or a waveform picture) that will bring you to the next
step in the faultfinding process.
By a combination of automatic diagnostics and an interactive
question / answer procedure, ComPair will enable you to find
most problems in a fast and effective way.
How to Connect
This is described in the chassis faultfinding database in
ComPair.
Caution: It is compulsory to connect the TV to the PC as
shown in the picture below (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!
TO
UART SERVICE
CONNECTOR
TO
I2C SERVICE
CONNECTOR
5.4Service Tools
5.4.1ComPair
Introduction
ComPair (Computer Aided Repair) is a service tool for Philips
Consumer Electronics products. ComPair is a further
development on the European DST (service remote control),
which allows faster and more accurate diagnostics. ComPair
has three big advantages:
1. ComPair helps you to quickly get an understanding on how
to repair the chassis in a short time by guiding you
systematically through the repair procedures.
2. ComPair allows very detailed diagnostics (on I
is therefore capable of accurately indicating problem areas.
Note: If you encounter any problems, contact your local
support desk.
5.4.2LVDS Tool
Introduction
This service tool (also called “ComPair Assistant 1“) may help
you to identify, in case the TV does not show any picture,
whether the Small Signal Board (SSB) or the display of a Flat
TV is defective.
Furthermore it is possible to program EPLDs with this tool
(Byteblaster). Read the user manual for an explanation of this
feature.
Since 2004, the LVDS output connectors in our Flat TV models
are standardised (with some exceptions). With the two
delivered LVDS interface cables (31p and 20p) you can cover
most chassis (in special cases, an extra cable will be offered).
5.5.1How to Read the Error Buffer
You can read the error buffer in 3 ways:
•On screen via the SAM (if you have a picture).
Examples:
– ERROR: 0 0 0 0 0 : No errors detected
– ERROR: 6 0 0 0 0 : Error code 6 is the last and only
detected error
– ERROR: 9 6 0 0 0 : Error code 6 was detected first and
error code 9 is the last detected (newest) error
•Via the blinking LED procedure (when you have no
picture). See “The Blinking LED Procedure”.
•Via ComPair.
5.5.2How 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/STATUS button (do not allow the display
to time out between entries while keying the
sequence).
– Make sure the menu item CLEAR is highlighted. 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.
When operating, the tool will show a small (scaled) picture on
a VGA monitor. Due to a limited memory capacity, it is not
possible to increase the size when processing high-resolution
LVDS signals (>= 1280x768). Generally this tool is intended to
determine if the SSB is working or not. Thus to determine if
LVDS, RGB, and sync signals are okay.
How to Connect
Connections are explained in the user manual, which is
delivered with the tool.
Note: To use the LVDS tool, you must have ComPair release
2004-1 (or later) on your PC (engine version >= 2.2.05).
For every TV type number and screen size, one must choose
the proper settings via ComPair. The ComPair file will be
updated regularly with new introduced chassis information.
How to Order
•LVDS tool (incl. two LVDS cables: 31p and 20p):
3122 785 90671.
•LVDS cable 41p-to-31p for CA1 (dual -> single LVDS):
3122 785 90830.
5.5Error Codes
The error code buffer contains all errors detected since the last
time the buffer was erased. The buffer is written from left to
right. When an error occurs that is not yet in the error code
buffer, it is displayed at the left side and all other errors shift one
position to the right.
Service Modes, Error Codes, and Fault Finding
EN 19LC4.8A AA5.
5.5.3Error 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).
Table 5-1 Error code overview
ErrorDeviceError Description Check ItemDiagram
0Not applicableNo Error
1Not applicableMis-match of TV
C error while
communicating with
the Genesis Scaler
and/or Flash-ROM
is faulty/empty
+5V protection7752B6
2
2
C error 7L04B18
2
C error while
communicating with
the Scaler
EEPROM
2
C error while
I
communicating with
the Hercules
EEPROM (NVM for
TV).
Remark: when the
Hercules EEPROM
is defective, the
Hercules should
operate with its
default values.
communicating with
the PLL tuner
2
C error while
communicating with
the 2D/3D
combfilter
Columbus
2
C error while
I
communicating with
the iBoard HDMI
Panellink Receiver/
Decoder (only in
NAFTA and AP
sets)
with the Scaler
SDRAM
communicating with
EPLD
I2C error while
communicating with
the Digital Module
(only on Digital
sets)
--
7801
7B01
C error 1102, 7L04, 7M00 B1 + B18
7C01B11
7207B2
1102, F102, F104,
F107
7M00B19
7D03B12
7B01B10
7N02B20 +
Digital Module
(only on Digital
sets)
B7 + B8
B10
+ B19
B1
(only in
NAFTA
and AP
sets)
B21
5.6The Blinking LED Procedure
Using this procedure, you can make the contents of the error
buffer visible via the front LED. This is especially useful when
there is no picture.
When the SDM is entered, the front LED will blink the contents
of the error-buffer:
•The LED blinks with as many pulses as the error code
number, followed by a time period of 1.5 seconds, in which
the LED is off.
•Then this sequence is repeated.
Any RC5 command terminates this sequence.
Example of error buffer: 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.
5.7Fault 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 handy 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!
•Do not change the Scaler NVM settings, as this will
hamper the DVI functionality of the TV set!
•Always note down the existing NVM settings, before
changing the settings. This will enable you to return to the
orgininal settings, if the new settings turn out to be
incorrect.
Table 5-2 NVM editor overview
HexDecDescription
.ADR0x000A10Existing value
.VAL0x00000New value
.StoreStore?
EN 20LC4.8A AA5.
Table 5-3 NVM Default values (option bit settings through NVM Editor in SAM Mode)
Byte Nr. BitFeature/ModeDescription
Byte 0
174(dec)
0 QSS (LSB)Mode of quasi split sound amplifier11
1 FMIConnection of output of QSS amplifier11
2 HCOEHT tracking mode00
3 HP2Synchronization of OSD/Text display11
4 FSLForced slicing level for vertical sync11
5 TFRDC transfer ratio of luminance signal11
6 OSVEBlack current measuring in overscan00
7 MVK (MSB)(For Future Usage, as defined by software) 00
Total Dec Values59 59
Total Hex Values3B 3B
Service Modes, Error Codes, and Fault Finding
37PF7320/69 /79 /93 /98
42PF7420/69 /79 /93 /98
Byte 1
175(dec)
Byte 2
176(dec)
Byte 3
177(dec)
0 PSEPSE00
1OPCOPC0 0
2PRISPRIS0 0
3 CONTINUOUS FACTORY Continuous factory mode 00
4 WHITE PATTERN ONLast color pattern status in factory mode00
5 SDM MODEService default mode on/off00
6 SAM MODEService Align mode on/off00
7 SVMAScavm On / Off00
Total Dec Values00
Total Hex Values00 00
0 MUTE STATUSMute status00
1 TUNER AUTO MODEAuto mode11
2 CABLE MODECable/Antenna mode00
3 LAST POWER MODELast power status of the set11
4 CHILD LOCK MODEChild lock enabled00
5 SURF MODESurf mode on/off00
6 FACTORY MODEFactory mode on00
7 PSNSFor PAL color enhancement in ES411
Total Dec Values138 138
Total Hex Values8A 8A
0 RADIO/TV MODERadio mode or TV mode00
1 WAKE-UP MODEWAKE-UP MODE00
2 HOTEL MODETV in Hotel mode00
3 HOTEL KBD LOCKKeyboard locked00
4HBLHBL0 0
5 BLSBlue stretch mode11
6SLSL0 0
7 CFA0Comb filter On/Off11
Total Dec Values160 160
Total Hex ValuesA0 A0
Service Modes, Error Codes, and Fault Finding
Byte Nr. BitFeature/ModeDescription
Byte 4
178(dec)
Byte 5
179(dec)
Byte 6
180(dec)
0 Signal StrengthSignal Strength Switch in MK2 00
1LPGLPG0 0
2 DVD TRAY LOCKLock/Unlock DVD tray00
3 SCRSAVER MODEScreen saver mode11
4 BKSBlack Stretch Mode11
5 BSDBlack Stretch Depth11
6 CRA0Coring on SVM11
7 PIP QSSPIP QSS00
Total Dec Values120 120
Total Hex Values78 78
0 FFIFast Filter00
1 NNRNo red reduction during blue stretch11
2 MUSNTSC matrix11
3 GAMGamma control11
4 CBSControl sequence of beam current limiting00
5 LLBLow level of beam current limiter00
6 DSADynamic skin tone angle area11
7 DSKDynamic skin tone angle on/ off00
Total Dec Values78 78
Total Hex Values4E 4E
0 LTI statusLTI last status11
1 Inc_Life_TimeInc_Life_Time00
2 PC_ModePC_Mode00
3 HD_ModeHD_Mode00
4 Tact_SwitchTact_Switch00
5 Set_In_Special_StbySet_In_Special_Stby00
6 Hotel_OSDDisplayHotel_OSDDisplay00
7 Hotel_MonitorOutHotel_MonitorOut00
Total Dec Values11
Total Hex Values01 01
37PF7320/69 /79 /93 /98
EN 21LC4.8A AA5.
42PF7420/69 /79 /93 /98
Byte 7
181(dec)
5.7.2Load Default NVM Values
In case a blank NVM is placed or when the NVM content is
corrupted, default values can be downloaded into the NVM.
(For empty NVM replacement, short the SDM with a jumper
and apply the mains voltage. Remember to remove the jumper
after the reload is completed). After the default values are
downloaded, it will be possible to start up and to start aligning
the TV set. This is no longer initiated automatically; to initiate
the download the following action has to be performed:
1. Switch “off” the TV set by disconnecting the AC Power
2. Short circuit the SDM jumpers (keep short-circuited).
3. Press P+ or Ch+ on the local keyboard (and keep it
5. Keep pressing the P+/Ch+ button until the set has started
up and the SDM is shown.
Alternative method:
1. Go to SAM.
2. Select NVM Editor (not SC NVM Editor).
3. Select ADR (address) to 1 (dec).
4. Change the VAL (value) to 170 (dec).
5. Store the value.
6. Disconnect the mains plug and wait for a few seconds.
7. Reconnect the mains plug and wait until the set goes into
its standby mode (red LED lights up).
8. Restart the set.
EN 22LC4.8A AA5.
Service Modes, Error Codes, and Fault Finding
5.7.3Tuner and IF
No Picture in RF Mode, but there is a Noise Raster
1. Check whether picture is present in AV. If not, go to Video
processing troubleshooting section.
2. If present, check if the Option settings are correct.
3. Check if all the supply voltages are present (3.3/5/8/12/33
V).
4. Check if the I
5. Manually store a known channel and check if there is IF
output at Tuner pin 11.
6. Check the tuning DC voltage at pin 2 of the Tuner. The DC
voltage should vary according to the frequency/channel
being chosen.
7. If the tuning voltage is OK, check the tuner output, pin 11.
8. If it has no output, the Tuner may have a defect. Change
the Tuner.
Sound in Picture Problem for L' System (rolling horizontal
lines)
1. Check whether AGC L' in SAM mode is set to 0.
2. If yes, align the set to correct value.
Required System is not Selected Correctly
Check whether a Service jumper (#4204 & 4205, 0805 size) is
present. If yes, remove it.
5.7.4Video Processing
2
C lines are working correctly (3.3 V).
5.7.5Power Supply
In case the power supply does not work, check (apart from the
obvious fuse-check) if the oscillators in IC7001 (in TV sets with
37 inch screens) or in IC7001 and IC7U01 (in TV sets with 42
inch screens) are working. If not, replace the ICs.
No Power
1. Check +12 V and 3V3 at position 1J02.
2. If no supply, check the connector 1J02.
3. If it is correct, check the power supply board.
Power Supply is Correct, but no Green LED
1. Check if the connectors 1K00 are properly inserted.
2. If they are inserted correctly, check if the 3V3 is present.
No Picture Display (blank screen with correct sound
output)
1. Check whether the user menu is visible.
2. If the user menu is OK, activate teletext mode.
3. If teletext is OK, the problem is in the ADC (B18) &
Columbus 3D combfilter (B19), if present (depending on
model, see also paragraph “Teletext Path” in chapter 9).
4. If the user menu is not visible, check if the LCD panel
backlight is ON.
5. If the backlight is OFF, the problem is in the power supply
board or LCD panel. Also check pin 12 (LAMP_ON_OFF)
of 1J02. It should be HIGH during normal operation.
Note: For faultfinding purposes, it is important to know the
following: in Pixel Plus and Digital Crystal Clear models, which
have an ADC (B18) and Columbus 3D combfilter (B19), the
digital input of the scaler is used for the digital video path
(Hercules output), whereas the analogue RGB input (analogue
input of the scaler) is only used for teletext. This means that no
mixed mode (video plus teletext simultaneously) is possible. If
there is sound and teletext, but no video and user menu (blank
screen), the digital path (Hercules - ADC - Columbus - Scaler)
is faulty. If there is sound but no teletext, the back-end part
(Scaler - LCD panel) is faulty. In Crystal Clear models, which
do not have an ADC and Columbus, the RGB path (analogue
input of scaler) is used for both video and teletext.
No TV, but PC is Present
1. Check if Hsync_SDTV and Vsync_SDTV are present at pin
1 & pin13 of 7E03.
2. If they are present, check teletext output.
3. If there is no teletext output, the IC TDA150xx may be
defect.
Block Diagrams, Testpoint Overviews, and Waveforms
6.Block Diagrams, Testpoint Overviews, and Waveforms
Wiring Diagram 37” LCD
WIRING 37”
8736
8302
AUDIO & STANDBY
SA
2P3
1736
8735
2P3
2P3
1735
1738
23LC4.8A AA6.
8317
LCD PANEL
2P3
1306
4P
1307
8304
8309
8306
3P
1309
4P
1304
7P
1M02
SPEAKER
CONTROL BOARD
E
1M01
3P
RIGHT
INVERTER
12P
8316
B
7P
1M02
SSB
1316
31P
1P06
12P
8150
9P
1739
1317
12P
8152
4P
1304
3P
1309
11P
1J01(1M46)
4P
8146
UART
1M10
10P
1J00(1M03)
1107
3P
Compair
1101
3P
1M46
8103
1J04(1M52)
1103
3P
Tuner
11P
1305
1M03
9P
3P
10P
1K00(1M21)
1K04(1M06)
1K02
6P
11P
3P
LVDS
8305
MF + SUPPLY
A
2P
1306
3P
1305
AC INLET
8136
8308
1308
2P
8120
LED SWITCH
J
PANEL
INVERTER
12P
6P
0345
LEFT
SPEAKER
SIDE I/O
D
11P
1M36
8101
8199
F_15420_022.eps
140705
Block Diagrams, Testpoint Overviews, and Waveforms
Wiring Diagram 42” LCD
WIRING 42”
RIGHT
SPEAKER
8735
INVERTER
12P
8316
2P3
2P3
2P3
7P
SA
1736
1735
1738
1M02
1316
8736
AUDIO & STANDBY
9P
1739
12P
1317
12P
1303
1320
4P
3P
1304
1309
4P
3P
8302
4P
1M10
8317
1M46
11P
24LC4.8A AA6.
8304
2P3
1306
4P
1307
3P
1305
LCD PANEL
10P
1M03
8306
8307
8305
LVDS
8309
8303
8320
4P
1303
3P
1320
MF + SUPPLY
A
4P
3P
1304
1309
7P
1M02
INVERTER
LEFT
SPEAKER
CONTROL BOARD
E
1M01
3P
B
31P
1P06
SSB
8150
8152
11P
1J01(1M46)
8146
1107
UART
10P
1J00(1M03)
1101
3P
3P
Compair
8103
1J04(1M52)
1103
3P
Tuner
9P
6P
1K00(1M21)
11P
1K04(1M06)
3P
1K02
2P3
3P
1306
1B06
8136
1305
3P
1420
1308
2P
8308
AC INLET
4P
1307
3P
1C05
8120
LED SWITCH
J
PANEL
12P
6P
1M20
SIDE I/O
D
11P
1M36
8101
F_15420_048.eps
130705
Block Diagrams, Testpoint Overviews, and Waveforms
TUN V+U PLL IEC BGDKM B
TUN V+U PLL IEC BGHIL B
TUNER UV1338/A F S H-4
TUNER UV1316E/A I H-4
TUNER UV1318SD/A CP H N-4
FIL SAW SM 38MHZ9 OFWK3953L R
V
FIL SAW SM 38MHZ OFWM3956L R
FIL SAW SM 45MHZ75 OFWM1967L R
FIL SAW SM 38MHZ9 OFWK7265L R
V
FIL SAW SM 38MHZ OFWK3955L R
FIL SAW SM 38MHZ9 OFWK9656L R
V
FIL SAW SM 38MHZ OFWK9352L R
FIL SAW SM 38MHZ9 OFWK9361L R
RST SM 0603 100R PM5 COL
RST SM 0603 100R PM5 COL
RST SM 0603 10K PM5COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 6K8 PM5 COL
RST SM 0603 2K2 PM5 COL
RST SM 0603 2K2 PM5 COL
V
RST SM 0603 2K2 PM5 COL
RST SM 0603 22K PM5 COL
RST SM 0603 18K PM5 COL
V
RST SM 0603 22K PM5 COL
V
RST SM 0603 47K PM5 COL
RST SM 0603 JUMP. 0R05 COL
V
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
V
RST SM 0603 JUMP. 0R05 COL
V
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
FXDIND SM 0805 0U39 PM10 COL R
FXDIND SM 0805 0U68 PM10 COL R
FXDIND SM 0805 12U PM10 COL R
V
FXDIND SM 1008 6U8 PM5 COL R
FXDIND 0603 100MHZ 600R COL R
RST SM 0603 100R PM5 COL
FXDIND 0603 100MHZ 600R COL R
RST SM 0603 100R PM5 COL
DIO SIG SM BAS316 (COL) R
V
DIO SIG SM 1SS356 (RHM0) R
TRA SIG SM BC847BW (COL) R
TRA SIG SM BC847BW (COL) R
ELCAP SM 16V 10U PM20 COL R
CER2 0805 X5R 6V3 10U PM10 R
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0805 Y5V 10V 4U7 P8020 R
RST SM 0603 150R PM5 COL
CER2 0805 Y5V 10V 4U7 P8020 R
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 1K PM5 COL
RST SM 0402 1K PM5 COL
RST SM 0402 1K PM5 COL
RST SM 0603 150R PM5 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 100R PM5 COL
RST SM 0402 47K PM5 COL
RST SM 0402 12K PM5 COL
RST SM 0402 47K PM5 COL
RST SM 0402 47K PM5 COL
RST SM 0402 47K PM5 COL
RST SM 0402 100K PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0805 JUMP. 0R05 COL R
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
IND FXD 1206 EMI 100MHZ 120R R
DIO SIG SM BAT54 SOD323 COL R
TRA SIG SM BC847BW (COL) R
TRA SIG SM BC847BW (COL) R
TRA SIG SM BC847BW (COL) R
IC SM TDA15011H/N1BD0 (PHSE) Y
IC SM TDA15021H/N1B91 (PHSE) Y
IC SM 74HC4053D (PHSE) R
CER2 0402 Y5V 16V 100N COL
RST SM 0402 2K7 PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
DIO REG SM PDZ2.4B (PHSE) R
DIO SIG SM 1N4148WS (VISH) R
IC SM 74LVC14APW (PHSE) R
TRA SIG SM BC847BW (COL) R
TRA SIG SM BC847BW (COL) R
V
Description
Item
26/32PF LCD
2701
VVV
2706
VVVV
2709
VVVV
2710
VVVV
2711
VVVV
2713
VVVV
2714
VVVV
2715
VVVV
2741
VVVV
2751
VVV
2752
VVV
2760
VVV
2761
VVVV
3708
VVVV
3709
VVVV
3712
VVVV
3713
VVVV
3716
VVVV
3740
VVVV
3741
VVVV
3742
VVVV
3743
VVVV
3755
VVV
3758
VVV
3760
VVV
3761
VVVV
5700
VVV
5704
VVVV
5709
VVVV
5712
VVVV
5713
VVVV
5756
VVV
5757
VVV
6708
VVVV
6709
VVVV
6712
VVVV
6740
VVVV
7708
VVVV
7710
VVVV
7741
VVVV
7742
VVVV
7754
VVV
7755
VVV
37/42PF LCD
42/50PF PDP
DVB PDP 42PF
DVB LCD 37PF
CER1 0402 NP0 50V 100P COL
ELCAP SM 16V 10U PM20 COL R
ELCAP SM 16V 47U PM20 COL R
CER2 1210 Y5V 25V 10U P8020 R
CER2 1210 Y5V 25V 10U P8020 R
ELCAP SM SEV 16V 470U PM20 R
CER2 0402 X7R 50V 220P COL
CER2 0402 X7R 16V 22N PM10 R
CER2 0603 X7R 10V 220N COL
CER2 0402 Y5V 16V 100N COL
ELCAP SM 16V 47U PM20 COL R
CER2 1206 X7R 25V 1U PM10 R
CER2 1206 X7R 25V 1U PM10 R
RST SM 0402 10K PM5 COL
RST SM 0402 6K8 PM5 COL
RST SM 0603 RC22H 5K6 PM1 R
RST SM 0603 RC22H 3K3 PM1 R
RST SM 0402 4K7 PM5 COL
RST SM 0402 1K5 PM5 COL
RST SM 0402 1K5 PM5 COL
RST SM 0402 15K PM5 COL
RST SM 0402 22K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 15K PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
IND FXD 1206 EMI 100MHZ 120R R
IND FXD SM 1206 10U PM20 R
IND FXD SM 7032 10U PM20 R
IND FXD SM 12565 33U PM20 R
INDFXD SM 10145 10U PM20 R
IND FXD 1206 EMI 100MHZ 120R R
IND FXD 1206 EMI 100MHZ 120R R
DIO REC SS24 COL R
DIO REC SS14 COL R
DIO REC SS36 COL R
DIO REG SM PDZ8.2B (PHSE) R
IC SM LF33CPT (ST00) R
IC SM E-L5973D (ST00) R
TRA SIG SM BC847BW (COL) R
TRA SIG SM BC847BW (COL) R
FET POW SM SI2301BDS-E3(VISH)R
TRA SIG SM PDTC114ET (COL) R
CER2 0603 X7R 16V 100N COL
CER1 0402 NP0 50V 100P COL
CER1 0402 NP0 50V 100P COL
CER2 0603 Y5V 10V 1U COL
CER2 0402 X7R 16V 10N COL
CER2 0402 Y5V 16V 100N COL
RST SM 0402 68R PM5 COL
RST SM 0402 68R PM5 COL
RST SM 0402 1K PM5 COL
RST SM 0603 10K PM5COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0402 10K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 560R PM5 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
FXDIND 0805 100MHZ 30R COL R
DIO REG SM BZX384-C3V9 COL R
IC SM PCA9515ADP (PHSE) R
TRA SIG SM BC847BW (COL) R
TRA SIG SM BC847BW (COL) R
Circuit Diagrams and PWB Layouts
MUX-SYNC INTERFACE
B13
Teletext)
ITEM
2E00
VV
2E01
VV
2E02
VV
2E04
VV
2E05
VV
2E06
VV
3E06
VV
3E07
VV
3E08
VV
3E13
VV
3E14
VV
3E15
VV
3E16
VV
3E17
VV
3E18
VV
AP/EU/AP-DVB (with Teletext)
EU-DVB (with Teletext)
DESCRIPTION
NAFTA/LT & China (non-
CER2 0603 X5R 6V3 4U7 PM10 R
CER2 0603 X5R 6V3 4U7 PM10 R
CER2 0603 X5R 6V3 4U7 PM10 R
CER2 0402 X5R 6V3 1U PM20 R
CER2 0402 X5R 6V3 1U PM20 R
CER2 0402 X5R 6V3 1U PM20 R
RST SM 0402 47K PM5 COL
RST SM 0402 47K PM5 COL
RST SM 0402 47K PM5 COL
RST SM 0402 330R PM5 COL
RST SM 0402 330R PM5 COL
RST SM 0402 330R PM5 COL
RST SM 0402 330R PM5 COL
RST SM 0402 330R PM5 COL
RST SM 0402 330R PM5 COL
SOC EURO H 21P F SHD R-GRND Y
SOC EURO H 21P F BK R-GRND B
VV
SOC EURO H 21P F SHD R-GRND Y
CON H 32P F 0.50 SM FPC 0.3 R
ELCAP SM 16V 10U PM20 COL R
CER2 0603 X7R 16V 100N COL
CER2 0603 X7R 16V 100N COL
V
CER2 0603 Y5V 25V 100N COL
CER2 0603 Y5V 16V 220N COL
ELCAP SM 16V 10U PM20 COL R
CER2 0603 Y5V 25V 100N COL
CER2 0603 Y5V 10V 1U COL
RST SM 0603 330R PM5 COL
CER2 0603 Y5V 10V 1U COL
CER2 0603 Y5V 10V 1U COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 330R PM5 COL
CER2 0603 X7R 50V 1N COL
CER2 0603 X7R 50V 1N COL
CER2 0603 X7R 50V 1N COL
CER2 0603 X5R 6V3 2U2 PM10 R
CER2 0603 X5R 6V3 2U2 PM10 R
CER2 0603 X5R 6V3 4U7 PM10 R
CER2 0603 X5R 6V3 4U7 PM10 R
CER2 0603 X5R 6V3 4U7 PM10 R
CER2 0603 X5R 6V3 4U7 PM10 R
RST SM 0603 10K PM5COL
RST SM 0603 10K PM5COL
RST SM 0603 10K PM5COL
V
RST SM 0603 150R PM5 COL
RST SM 0603 15K PM5 COL
RST SM 0603 15K PM5 COL
RST SM 0603 47K PM5 COL
RST SM 0603 47K PM5 COL
RST SM 0603 560R PM5 COL
RST SM 0603 10K PM5COL
RST SM 0603 47K PM5 COL
RST SM 0603 100R PM5 COL
RST SM 0603 100R PM5 COL
RST SM 0603 47K PM5 COL
RST SM 0603 47K PM5 COL
RST SM 0603 47K PM5 COL
RST SM 0603 100R PM5 COL
RST SM 0603 100R PM5 COL
RST SM 0603 47K PM5 COL
RST SM 0603 75R PM5 COL
RST SM 0603 47K PM5 COL
RST SM 0603 47K PM5 COL
RST SM 0603 47K PM5 COL
RST SM 0603 47K PM5 COL
RST SM 0603 47K PM5 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0603 JUMP. 0R05 COL
FXDIND 0603 100MHZ 120R COL R
DIO SIG SM BAS316 (COL) R
IC SM 74HC4053D (PHSE) R
TRA SIG SM BC847B (COL) R
IC SM ADG734BRUZ (ANA0) R
CON V 10P M 2.00 PH B
CON V 11P M 2.00 PH B
CON V 12P M 2.00 PH B
CON V 3P M 2.00 PH B
FUSE SM T 3A 125V UL R
FUSE SM F 630MA 50V UL R
CER1 0402 NP0 50V 100P COL
RST SM 0402 68R PM5 COL
RST SM 0402 68R PM5 COL
RST SM 0402 JUMP. 0R05 COL
IND FXD 1206 EMI 100MHZ 120R R
Description
CON V 6P M 2.00 PH B
CON V 12P M 2.00 PH B
CON V 20P F 1.25 FFC 0.3 B
CON V 11P M 2.00 PH B
CER1 0402 NP0 50V 100P COL
RST SM 0402 68R PM5 COL
RST SM 0603 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
FXDIND SM 0603 1U PM10 COL R
VVV
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
+LEXIP non 9.4CL/8.4CL
LEXIP htiw 9.4CL/8.4CL
82/0237FP24
Description
CON V 4P M 2.00 SM PH R
OSC XTL SM 14M31818 15P OC R
CON V 30P M 1.25 SM 1453230 R
CON H 31P F 1.25 SM FI-WE R
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 X5R 6V3 1U PM20 R
CER2 0402 X7R 50V 1N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER1 0402 NP0 50V 100P COL
CER1 0402 NP0 50V 100P COL
CER1 0402 NP0 50V 100P COL
CER1 0402 NP0 50V 100P COL
CER1 0402 NP0 50V 100P COL
CER1 0402 NP0 50V 100P COL
CER2 0603 X5R 6V3 2U2 PM10 R
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
ELCAP SM 16V 100U PM20 COL R
CER2 0402 Y5V 16V 100N COL
CER2 0603 X5R 6V3 2U2 PM10 R
CER2 0603 X5R 6V3 2U2 PM10 R
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0603 X5R 6V3 2U2 PM10 R
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
CER2 0402 Y5V 16V 100N COL
RST SM 0402 10K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0603 33K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 1K PM5 COL
RST SM 0402 33K PM5 COL
RST SM 0402 47R PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 47R PM5 COL
RST SM 0402 47R PM5 COL
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
VV V
Description
RST SM 0402 47R PM5 COL
RST SM 0402 47R PM5 COL
RST SM 0402 10K PM5 COL
RST SM 0402 47R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 4K7 PM5 COL
RST SM 0402 47R PM5 COL
RST SM 0603 180R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 4K7 PM5 COL
RST SM 0402 47R PM5 COL
RST SM 0402 100R PM5 COL
RST SM 0402 JUMP. 0R05 COL
V
RST SM 0402 100R PM5 COL
RST SM 0402 JUMP. 0R05 COL
V
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
RST SM 0402 JUMP. 0R05 COL
FXDIND 0805 100MHZ 30R COL
FXDIND 0805 100MHZ 30R COL
FXDIND 0805 100MHZ 30R COL
FXDIND 0805 100MHZ 30R COL
FXDIND 0805 100MHZ 30R COL
FXDIND 0805 100MHZ 30R COL
FXDIND 0805 100MHZ 30R COL
FXDIND 0805 100MHZ 30R COL
FXDIND 0805 100MHZ 30R COL
FXDIND 0805 100MHZ 30R COL
FXDIND 0805 100MHZ 30R COL
LED VS SM TLMG3100 (VISH) R
IC SM EPCS4SI8N (ALT0) R
IC SM EP1C12F256C8N (ALT0)
TRA SIG SM BC847BS (PHSE) R
IC SM THC63LVDF84B (THIN)
IC SM LF15ABDT (ST00) R
IC SM THC63LVDM83R (THIN)
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 Alignm e n t Co nd it io n s
Perform all electrical adjustments under the following
conditions:
Mains voltage and frequency: 100-240 V / 50/60 Hz.
Allow the set to warm up for approximately 10 minutes.
Test probe: Ri > 10 MΩ; Ci < 2.5 pF.
8.2Hardware Alignments
Alignments
EN 87LC4.8A AA8.
There are no hardware alignments foreseen for the LCD-TV.
8.3Software Alignments
With the software alignments of the Service Alignment Mode
(SAM) the geometry, white tone and tuner (IF) 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.
EN 88LC4.8A AA8.
8.3.1SAM Menu
Alignments
00035 LC4XAP1 1.15/S4XPVX 1.23 SDM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
00035 LC4XAP1 1.15/S4XPVX 1.23
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
. Clear Clear ?
. Options
. Tuner
. White Tone
. Audio
. NVM Editor
. SC NVM Editor
. Test Pattern
. ComPair Mode On
1
00035 LC4XAP1 1.15/S4XPVX 1.23
2 CODES 0 0 0 0 0
3 OP 000 057 140 032 120 128 000
4
5
6 NOT TUNED
7 PAL
8 STEREO
9 CO 50 CL 50 BR 50
0 AVL Off
•Input a Colour bar signal with a colour subcarier frequency
•Select as a signal source EXT1 or AV1.
•Go to the SAM menu and select Audio.
•Activate DCXO Alignment and wait until this process has
•Check if the NICAM audio reception is OK, if not: repeat the
•Switch the set to standby to store the data.
F_15420_055.eps
180705
of 4.43 MHz on SCART1 or SCART2.
finished (DONE).
procedure.
Alignments
EN 89LC4.8A AA8.
8.3.4ADC Gain and Grey Scale Alignment & Panel Size Settings
The table below shows a number of NVM settings used for
each model of TV set. Be sure to use the correct editor in the
SAM menu (NVM Editor or SC NVM Editor), because the first
one is used for the Hercules NVM, and the second one for the
SCALER (SC) part of the TV set. For further important NVM
settings, see also the other NVM tables elsewhere in this
manual.
Table 8-1 ADC gain and grey scale alignment
SDTV ADC Gain settings: Use the NVM Editor in SAM to set these values in the Hercules NVM
These models are with ADC & Columbus 3D Combfilter
SDTV Greyscale settings: Use the SC NVM Editor in SAM to set these values in the Scaler NVM
These models are with ADC & Columbus 3D Combfilter
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!
•Do not change the Scaler NVM settings, as this will
hamper the DVI functionality of the TV set!
•Always note down the existing NVM settings, before
changing the settings. This will enable you to return to the
orgininal settings, if the new settings turn out to be
incorrect.
Options OP1...OP7 in the SAM menu can be used for quickly
restoring 64 features or settings of the HERCULES part of the
TV set to their orginal default factory values (8 groups of 8
features/settings each). When the decimal value of one option
byte OP1...OP7 is changed (see the first table below) then a
group of 8 bits, representing 8 HERCULES options or features,
is changed as well (see the second table below for a detailed
description of the features or settings that are changed).
The second table shows which option byte (OP1...OP7)
represents which group of 8 option bits. Each bit (0...7)
switches a particular HERCULES feature or setting ON or OFF,
depending on its value (1 or 0).
It is also possible to change the features or settings mentioned
in the second table directly at bit level, by means of the NVM
Editor in the SAM menu. In the NVM Editor, first the correct
NVM address (ADR) has to be entered, then the correct value
(VAL, 1 or 0) for each bit (see second table), and finally the
settings have to be stored (STORE). For quickly restoring the
HERCULES part of the TV set to its original factory settings,
however, it is more convenient to simply enter the default
factory settings OP1...OP7 that are given in the first table
below. How to do this, is described in the next paragraph.
the NVM editor. For further settings, see also the table “ADC
Gain and Grey scale alignment” elsewhere in this manual.
How to Change an Option Byte
As has been explained above, an Option byte (OP) represents
a number of different HERCULES options. Changing these
bytes directly makes it possible to set all HERCULES options
very fast. All options are controlled via seven option bytes.
Select the option byte (OP1.. OP7) with the Menu Up/ Down
keys, and enter the new (decimal) value. For the correct
Factory Default settings, see the first table below. For more
detailed information, see the second table.
Leaving the Option submenu saves the changes in the Option
Byte settings. Some changes will only take effect after the set
has been switched “off” and “on” with the AC power switch (cold
start).
Table 8-2 Option codes OP1...OP7
Option table for quickly restoring the HERCULES to its
If you wish to know which features or settings of the
HERCULES are changed via OP1...OP7, or if you want to
change each option or feature bit by bit, use the more detailed
table below.
Note: the table below contains only part of the NVM settings
that can be changed. A second range of settings and features
can be found in Chapter 5 of this manual, in table NVM Default values. The settings mentioned there can only be changed via
Alignments
EN 91LC4.8A AA8.
Table 8-3 Option codes in detail, at bit level
Option byte & bit table for restoring the TV set to its original Factory Default settings via the NVM Editor in the SAM menu
xxPF7x20/93
xxPF7x20/69 /79 /98
OP1Description of feature/option to be switched ON or OFF
bit 7 (msb) OP_PHILIPS_TUNER10
bit 6OP_FM_RADIO00
bit 5OP_LNA00
bit 4OP_ATS // for EU00
bit 3OP_ACI00
bit 2OP_UK_PNP00
bit 1OP_VIRGIN_MODE00
bit 0 (lsb)OP_CHINA01
OP2
bit 7 (msb) OP_SC00
bit 6OP_IBEX00
bit 5OP_CHANNEL_NAMING11
bit 4OP_LTI (Lum Transcient Improvmt)00
bit 3OP_TILT00
bit 2OP_FINE_TUNING11
bit 1OP_PIP_PHILIPS_TUNER00
bit 0 (lsb)OP_HUE11
OP3
bit 7 (msb) OP_EW_FUNCTION00
bit 6OP_PIXEL_PLUS11
bit 5OP_PIP_SPLITTER // temp00
bit 4OP_SPLITTER // temp00
bit 3OP_VIRTUAL_DOLBY11
bit 2OP_WIDE_SCREEN11
bit 1OP_WSSB10
bit 0 (lsb)OP_OP_ME5 // OP_ME5 - 5/6 local buttons implementation11
OP4
bit 7 (msb) OP_LIP_SYNC00
bit 6OP_HD11
bit 5OP_ULTRA_BASS11
bit 4OP_DELTA_VOLUME00
bit 3OP_TAIWAN_KOREA00
bit 2OP_VOLUME_LIMITER00
bit 1OP_STEREO_D BX00
bit 0 (lsb)OP_S TEREO_NICAM_2CS10
OP5
bit 7 (msb) OP_AV111
bit 6OP_AV211
bit 5OP_AV311
bit 4OP_CVI11
bit 3OP_SVHS211
bit 2OP_SVHS311
bit 1OP_HOTEL_MODE00
bit 0 (lsb)OP_SIMPLY_FACTORY=OP_BTSC_AVSTEREO00
OP6
bit 7 (msb) OP_PERSONAL_ZAPPING00
bit 6OP_SMART_SURF 00
bit 5OP_FMTRAP00
bit 4OP_COMBFILTER11
bit 3OP_ACTIVE_CONTROL11
bit 2OP_VIDEO_TEXT00
bit 1OP_LIGHT_SENSOR11
bit 0 (lsb)OP_TWIN_TEXT11
OP7
bit 7 (msb) OP_TIME_WIN100
bit 6OP_DVB_USB = OP_MALAY00
bit 5OP_AMBILIGHT00
bit 4OP_COLUMBUS11
bit 3OP_COLOR_SYSTEM_AP10
bit 2OP_SOUND_SYSTEM_AP_111
bit 1OP_SOUND_SYSTEM_AP_200
bit 0 (lsb)OP_SOU ND_SYSTEM_AP_300
Total DEC Value128 1
Total HEX Value80 01
Total DEC Value37 37
Total HEX Value25 25
Total DEC Value79 77
Total HEX Value4F 4D
Total DEC Value97 96
Total HEX Value61 60
Total DEC Value252 252
Total HEX ValueFC FC
Total DEC Value27 27
Total HEX Value1B 1B
Total DEC Value28 20
Total HEX Value1C 14
Model number
EN 92LC4.8A AA9.
Circuit Descriptions, Abbreviation List, and IC Data Shee ts
9.Circuit Descriptions, Abbreviation List, and IC Data Sheets
Index of this chapter:
9.1 Introduction
9.2 Block Diagram
9.3 Input/Output
9.4 Tuner and IF
9.5 Video: TV Part (Diagrams B1, B2, and B3)
9.6 Columbus
9.7 Video: Scaler Part (Diagram B7, B8 and B9)
9.8 Audio Processing
9.9 Control
9.10 Abbreviation List
9.11 IC Data Sheets
9.1Introduction
The LC4.8 LCD TV is a global LCD TV for the year 2005. It is
the successor of the LC4.6 LCD TV and has screen sizes of 37
inch and 42 inch (in 16:9 ratio); it has a new styling, called
Entry+. Globally, there are three different picture qualities
available, depending on the model: Pixel Plus, Digital Cristal
Clear, and Crystal Clear. The block diagram below (see Figure
9.2Block Diagram
SDRAM
“Block diagram”) shows the Pixel Plus architecture; the
architectures of the other models (that are not discussed in this
manual) are shown in the block diagram on the next page (see
Figure “Block diagram of the internal building blocks”).
The architecture consists of a TV and Scaler panel, I/O panel,
Side I/O and Local Keyboard panel and Power Supply panel.
The functions for video/audio processing, microprocessor (µP),
and CC/Teletext (TXT) decoder are all combined in one IC
(TDA150xx, item 7217), the so-called third generation Ultimate
One Chip (UOC-III) or “Hercules”. This chip has the following
features:
•Control, small signal, mono/stereo, and extensive Audio/
Video switching in one IC.
•Upgrade with digital sound & video processing.
•Alignment free IF, including SECAM-L/L1 and AM.
•FM sound 4.5/5.5/6.0/6.5, no traps/bandpass filters.
•Full multi-standard colour decoder.
•One Xtal reference for all functions (microprocessor, RCP,
TXT/CC, RDS, colour decoder, and stereo sound
processor).
NVM
FLASH
DDR
TUNER
IF
A/D
601 INTERF .601 INTERF.
AD9945
HDMI
SCART/
CINCH
I/O
ComPair
CVBS
Y
C
INTERNAL LIP SYNC CKT
NVM
HERCULES
AMPLIFIER
TO
AUDIO
AMP
AUDIO
CVBS,U,V
Figure 9-1 Block Diagram
The PLL tuner UV1316E/1318SD/TEDE9 delivers the IFsignal, via audio & video SAW-filters, to the Video Signal
Processor and FLASH embedded TEXT/Control/Graphics
Micro Controller TDA120x1 (item 7011, also called Hercules).
This IC has the following functions:
•Analogue Video Processing
•Sound Demodulation
•Audio Interfaces and switching
•Volume and tone control for loudspeakers
•Reflection and delay for loudspeaker channels
•Micro Controller
•Data Capture
•Display
The Hercules has one input for the internal CVBS signal and a
video switch with 3 external CVBS inputs and a CVBS output.
All CVBS inputs can be used as Y-input for Y/C signals.
However, only 2 Y/C sources can be selected because the
circuit has 2 chroma inputs. It is possible to add an additional
CVBS(Y)/C input (CVBS/YX and CX) when the YUV interface
and the RGB/YPRPB input are not needed. There are two rear
COLUM-
BUS
601 INTERFACE
SM5301
DVI-IHDMIDMMIHP
SCALER
DVI TMDS
LVDSRx
EPLD
LCD
PANEL
LVDSRx
F_15270_007.eps
200505
analogue video inputs: AV is for SVHS in and video (CVBS) in,
and CVI-1 is meant for RGB/YUV in). The rear VIDEO OUT
cinch connector can be used for monitoring purposes:
WYSIWYR (What you see is what you record).
Depending on the model of the TV set, the Hercules delivers its
RGB signals either directly to the Scaler IC or indirectly, via a
Columbus chip (for 2D/3D comb filtering and spatial/temporal
noise reduction, for its description: see further down in this
text). The EPLD, which is present in the Pixel Plus models
discussed in this manual, provides additional sharpening to the
picture. For a general outline, see the table and the block
diagrams below, in which the architectures of the various
models are given, together with their electronic building blocks.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Pixel Plus
N.a.Digital Crystal Clear
N.a.Crystal Clear
CVBS
Pb, Pr
ADC
COLUMBUSSCALEREPLD
ADC
COLUMBUSSCALER
SCALER
F_15270_008.eps
DIGITAL
CRYSTAL CLEAR
HERCULESPIXEL PLUS
HERCULES
HERCULESCRYSTAL CLEAR
CVBS
Pb, Pr
R, G, B
Figure 9-2 Block diagram of the internal building blocks
The Genesis GM1501 Malibu Scaler IC can receive two video
input signals: SDTV (directly from Hercules or via Columbus),
DVI (from an external DVI source), or PC (from external
computer).
After the video processing, the digital data is sent via a Low
Voltage Differential Signalling bus to the LCD panel. LVDS is
used to improve data speed and to reduce EMI significantly.
There are two I
2
C lines and two interrupt and communication
lines (TV_IRQ and TV_SC_COM) for the Scaler control. The
Scaler communicates with the Hercules as a slave device. To
avoid buffer overflow at the Scaler side, the TV_SC_COM line
provides the necessary hardware flow control. To allow bidirectional communication, the Scaler can initiate a service
interrupt-request to the Hercules via the TV_IRQ line.
The Hercules, and EEPROM are supplied with 3.3 V, which is
also present during STANDBY.
The EEPROM, or NVM (Non Volatile Memory) is used to store
the settings.
The sound part is built up around the Hercules. The Source
Selection, Decoding and Processing are all done by the
Hercules.
Power supply input are several DC voltages coming from a
supply panel.
LVDS
LVDS
LVDS
240505
9.4Tuner and IF
A Philips UV1316E/1318SD/TEDE9 Tuner is used in the TV
board. The SIF signals are decoded by the Hercules. Tuning
is done via I
9.4.1Video IF Amplifier
The IF-filter is integrated in a SAW (Surface Acoustic Wave)
filter. One for filtering IF-video (1104, in some models: 1105)
and one for IF-audio (1106). The type of these filters depends
on the standard(s) that has/have to be received.
The output of the tuner is controlled via an IF-amplifier with
AGC-control. This is a voltage feedback from pin 31 of the
Hercules to pin 1 of the tuner. The AGC-detector operates on
top sync and top white level. AGC take-over point is adjusted
via the service alignment mode ’Tuner' - 'AGC’. If there is too
much noise in the picture, then it could be that the AGC setting
is wrong. The AGC-setting could also be mis-aligned if the
picture deforms with perfect signal; the IF-amplifier amplifies
too much.
2
C.
9.3Input/Output
The I/O is divided over two parts: Rear I/O and Side I/O. The
rear has two AV inputs with CVBS, Y/C and YUV, a PC (VGA)
input, and an HDMI input. The side has a CVBS and Y/C
(SVHS) input.
The selection of the external I/O's is controlled by the Hercules.
AV1 / CVI-1: The input of AV1 / CVI-1 is CVBS + YUV + L/R.
AV2: The input of AV2 is Y/C + CVBS + L/R.
PC-VGA/CVI-2: This input is directly going to the Scaler IC.
See paragraph “Video: Scaler Part”.
HDMI in / PC-D: This input is directly going to the Scaler IC.
See paragraph “Video: Scaler Part”.
EN 94LC4.8A AA9.
Circuit Descriptions, Abbreviation List, and IC Data Shee ts
9.5Video: TV Part (Diagrams B1, B2, and B3)
7208
B13
7436-1
Chroma
Hsync_SDTV
4
3
67
HOUT
H-Shift
H-OSC
Sync Sep
H/V
Uint
SECAM
PAL/NTSC/
B18
H-Drive
Vint
Delay
Baseband
Decoder &
CVBS/Y
RGB/Pr Pb Insert
YUV Interface
YIN
UIN
VIN
VOUT
UOUT
YOUT
B/Pb-3
G/Y3
R/Pr-3
INSSW3
B18
B18
B18
N.C.
INTF_V_OUT
74 75 7670 71 72
77 78 79 80
INTF_Y_OUT
INTF_U_OUT
B13
SC1_B_CVI_Pb_IN
B13
SC1_G_CVI_Y_IN
B13
SC1_R_CVI_Pr_IN
B15
SC1_FBL_IN_1
B13
Vsync_SDTV
2
7436-2
1
22
VDRB
Vertical &
Peaking
SCAVEM
Dig. 2H/4H
B18
Geometry
East-West
SCAVEM
U/V Delay
on text
Yint
Combfilter
Y Delay Adj.
YUV in/out
B13
B13
B13
EF
7209
EF
EF
7210
BO
RO
GO
85
86
87
RO
BO
GO
Fast Blanking
B_OSD
G_OSD
R_OSD
Strech
RGB Matrix
Blue & Black
Gamma Corr.
Skin Tone
U/V Tint
Saturation
SAT
YUV
HERCULES
180705
F_15420_056.eps
HERCULES
7217
B2
+VTUN
TUNER & VIF
B1
VIDEO
TDA15021H
+5SW_a
1102
CVBS1
Tra ps
Sound
24
VIF1
7
1104
2
2106
IF-TER
11
67
UX1318SD
IN
RF
25
VIF2
8
TUNER
F108
3104
1
5
4
AGC
AC
Video
31
RF_AGC
Switch
Detect
DC
+
c
Control
QSS/FM
29
SIF1
7
1106
SDA
SCL
AM
QSS Mixer
AM Demod.
30
SIF2
8
2
cvbs/y
59
7206
SC2_AV3_C_IN
14
7G10
2
1
SC2_Y_IN
FRONT_Y_CVBS_IN
3
1
1R02
SCART ANALOG IO
IN
VIDEO
B15
64
EF
SC2_AV3_Y_IN
15
12
SC2_C_IN
FRONT_C_IN
4
2
5
S-VHS
51
CVBS_COMB
13
AV2_DMMI_SW
52
4G13
58
13
7G19
14
SC2_Y_IN_1
4G18
48
12
Present only for
1R07
55
9
SC2_OUT_SW
B7
non DVB sets
OUT
VIDEO
43
B13
SC1_CV1_DMMI_R_Pr_IN
4R68
CVI_Pr_IN
Pr
B13
SC1_CV1_DMMI_G_Y_IN
SC1_CV1_DMMI_B_Pb_IN
4R70
4R69
CVI_Y_IN
CVI_Pb_IN
1R06
Y
B13
SIDE
CONNECTIONS
FRONT_C_IN
FRONT_YCVBS_IN
244
1K01
B17
2
1304
(1M06)
C
Y/CVBS
3
4
2
1
5
S-VHS
SVHS
IN
VIDEO
1080
1060
SIDE AV
Pb
D
Figure 9-3 Block diagram video processing
Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 95LC4.8A AA9.
The video processing is completely handled by the Hercules
•IF demodulator.
•Chrominance decoder
•Sync separator.
•Horizontal & vertical drive.
•RGB processing.
•CVBS and SVHS source select.
It has also built-in features like:
•CTI.
•Black stretch.
•Blue stretch.
•White stretch.
•Slow start up.
•Dynamic skin tone correction etc.
Further, it also incorporates sound IF traps and filters, and
requires only one crystal for all systems.
9.6Columbus
9.6.1Introduction
The Columbus is a combination of:
•A 2D/3D Comb filter for both PAL and NTSC, and
•A spatial/temporal noise reduction system for both
colour and luminance signals.
The Columbus 3D Comb filter uses digitalised CVBS, U, and V
(or C) signals and can be used with or without an external 16
Mbit SDRAM. Without external 16Mbit SDRAM, 3D comb
filtering and temporal noise reduction are not possible.
The noise reduction part of the Columbus is controlled by the
FBX software using the SNERT interface. The 2D/3D Comb
filter part is controlled by the Main software using the I
9.6.22D/3D Comb Filter
Introduction
The “3D Comb filter Columbus” is a combined 2D/3D Comb
filter function that is part of the Columbus chip (circuit diagram
B19, item 7M00). It is a comb filter for both PAL and NTSC.
The 3D Comb filter is used to separate chroma and luminance
components out of a CVBS signal. It is of no use when the
CVBS signal is a SECAM signal (SECAM signals cannot be
combed) The Columbus chip can be used with or without 16
Mbit external SDRAM (circuit diagram B10, item 7B01). When
an external SDRAM is connected to the IC, the Comb filter
function can work in combined 2D/3D processing (depending
on the detected pixel based motion). When no external
SDRAM is connected, only 2D Comb filtering is possible.
The Columbus can comb the following standard signals:
•PAL B, PAL G, PAL H, PAL I, PAL D, PAL K: Colour
standard PAL, Colour carrier at 4.43 MHz, field frequency:
50 Hz
•PAL M: Colour standard PAL, Colour carrier at 3.58 MHz,
field frequency: 60 Hz
•PAL N: Colour standard PAL, Colour carrier at 3.58 MHz,
field frequency: 50 Hz
•NTSC M: Colour standard NTSC, Colour carrier at 3.58
MHz, field frequency: 60 Hz
For NTSC signals, the PAL delay line must always be
bypassed.
The following signals CANNOT be combed:
•Double Window signals or Multi PIP. For these signals,
only one part or even no part of the signal is in relation with
the burst. The part that is not in relation with the burst can
become very blurred when combed by the Columbus
2
C bus.
Comb filter. Such a signal must be bypassed. Notch mode
is not even an option since e.g. in double window, one part
can be a PAL signal while the other part is NTSC or
SECAM.
•In cases where a SECAM signal is presented to the
Columbus Comb filter; both the luminance and UV path
must be bypassed. The PAL delay line inside the
Columbus cannot be used for SECAM signals so it must
also be bypassed. The luminance path must have
luminance at its input instead of CVBS. A chroma delay line
outside Columbus must be used for SECAM signals.
Reason for this: the Columbus PAL delay line halves the
output of the chroma signals in case of SECAM.
•Y/C, YPbPr, and RGB signals do not have to be combed.
So both the luminance and UV path must be bypassed.
The PAL delay line will also be bypassed.
•In cases where the Columbus Comb filter does not receive
a CVBS signal with burst at the right place according to the
standard (this includes black and white signals without
burst), phase correction results become unpredictable and
the Comb filter must be set in bypass (= luminance path
bypassed, UV path bypassed, PAL delay line bypassed)
•VCR signals cannot be combed and must be processed in
notch mode, or bypassed.
Columbus Modes
The several modes of the Columbus 3D Comb filter are:
•Bypass mode.
•Band-Pass-Notch mode.
•2D Comb filter modes.
– Simple median.
– Median.
•Field Comb filter mode.
•Frame Comb filter mode.
Bypass Mode
The 3D Comb filter can be set in bypass mode. In this mode,
the CVBS, U and V signals are just bypassed to the output.
Band-Pass-Notch Mode
This is a mode where no Comb filtering is applied. A “Band
Pass Filter” is used to filter the chroma information out of the
CVBS signal. A “Notch Filter” is used to subtract the sub carrier
out of the CVBS in order to make a luminance signal without
chroma sub carrier.
In terms of cross colour and cross luminance, this mode has
the worst performance of all. It is only used on these signals
where no comb filtering can be applied (non-standard signals
and most VCR signals for example).
2D Comb Filter Modes
A Comb filter does an action on a current pixel and a delayed
pixel. When the delayed pixel is a line-delayed pixel, we talk
about a “Spatial or 2D Comb Filter” (for NTSC the delay must
be 1 line, for PAL it must be 2 lines).
Spatial or 2D Comb filters show problems on vertical colour
transients and on single coloured lines. For these situations,
extra hardware is added in the Columbus chip to avoid these
kinds of problems. However even with these extra measures,
there are still situations where the 2D Comb filter does not
perform optimally (diagonal resolution and single lines with
equal luminance content). In order to restrict the working area
of the 2D Comb filter to the frequencies where the sub carrier
is present, a horizontal band pass filter always precedes a 2D
Comb filter.
When a 2D Comb filter has no extra hardware to avoid
problems at vertical colour transients (or this extra hardware is
switched “off”), the Comb filter is called a “simple median filter”.
When there is extra hardware to avoid these kinds of problems,
the filter is called a “median filter”.
Field Comb Filter Mode
A Comb filter does an action on a current pixel and a delayed
pixel. When the delayed pixel is a field-delayed pixel, we talk
EN 96LC4.8A AA9.
Circuit Descriptions, Abbreviation List, and IC Data Shee ts
about a “Field Comb Filter”. Field Comb filters are only for PAL
of commercial interest.
Field Comb filters show also problems on vertical colour
transients and on motion. For the vertical transients, a hanging
dots detector has been added, however the performance on
vertical transients of the field Comb filter, even with this
hanging dots detector, is worse than the performance of the 2D
Comb filter. On motion, the field Comb filter performs very
badly. A motion detector must detect the pixels where there is
motion and on these pixels, the Comb filter must be forced back
to 2D Comb filter mode. This switching back is not
implemented with a hard switch, but with a motion controlled
fader. When there is a lot of motion, the fader will take a lot of
the 2D Comb filter output, when there is less motion, more fieldcombed signal will be taken.
A field Comb filter is also called a “vertical-temporal filter”
because it filters in the vertical and temporal direction.
Frame Comb Filter Mode
A Comb filter does an action on a current pixel and a delayed
pixel. When the delay is a frame, we talk about a “Frame Comb
Filter”. For NTSC we need a delay of one frame, for PAL
however the delay must be two frames.
Frame Comb filters have the best performance, but just like the
Field Comb filter, they perform very badly on motion. A motion
detector will have to detect motion and on these motion pixels,
2D Comb filtering will have to be applied. A frame Comb filter
is a pure “temporal filter”.
The Columbus needs an external memory connected to it,
before it can do a temporal or vertical-temporal Comb filter
action. When no external memory is connected, field or frame
Comb filtering is impossible.
Block Diagram
In the next block diagram, two main parts of the Columbus 2D/
3D Comb filter can be seen:
•The upper part is what is called the luminance Comb filter.
It tries to make an as clean as possible luminance signal
out of the CVBS signal at the input.
•The lower part receives U and V signals (sequentially) that
are normally only band pass filtered in front of the 3D Comb
filter. It filters all left over luminance signals out of it, in order
to make an as clean as possible U and V signal.
The offset block receives the motion dependant 2D/3D Comb
filtered signal as input. The black level of the luminance signal
is restored and the result is output. The black level restoration
is corrected continuously. However, on VCR signals, this
restoration can become unstable. Therefore, on VCR signals,
a fixed black level restoration value must be forced.
A horizontal dynamic peaking can be done on the luminance
signal. This peaking is adaptive in order not to amplify any
cross luminance distortion. It detects where there could be left
over sub carrier in the luminance signal and reduces the
peaking over there. The detection of the left over cross
luminance is different depending on the pre-filter or post-filter
mode.
The amount of peaking and coring can be chosen. The peaking
algorithm behind it is a simplified copy of the luminance
peaking of picnic. After the peaking block, the signal is output
as clean luminance.
The bypass switches have the obvious purpose of bypassing
the input signal, in case no Comb filtering is wanted.
A PAL delay line is added in the UV path. This is done because
a delay line in front of the 3D Comb filter does need an extra
vertical filter action on the UV signals. This vertical filtering
deteriorates the vertical transient performance for colours. The
Columbus Comb filter cannot undo this. However, this
reduction in performance can be omitted by putting the PAL
delay line after the 3D Comb filter block.
For PAL signals, the PAL delay line in front of the Columbus 3D
Comb filter is bypassed and the Columbus delay line is
switched “on”. In cases where the delay line in front of
Columbus cannot be bypassed, the Columbus PAL delay line
is bypassed.
For NTSC signals, the PAL delay line is bypassed as usual.
The Comb filter has two inputs. One is the CVBS where clean
luminance (Y) will be extracted from; the other one is UV where
a clean U and V signal will be extracted. Both input signals are
digital signals.
The field or frame delay is used for the Field and Frame Comb
filter mode. An external memory connected to the Columbus IC
provides this delay.
Phase correction is done at the inputs of both the Comb filter
blocks. There is a phase correction for spatial filtering (called
the spatial phase corrector) and a separate phase correction
on the signals used for temporal (Frame or Field) Comb filtering
(called the temporal phase corrector).
Y-O U T
UV-OUT
Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 97LC4.8A AA9.
9.6.3Noise Reduction and Noise Estimator
The noise reduction function is a sophisticated successor of the
noise reduction module from the PICNIC-chip, also known as
“LIMERIC”.
Besides the noise reduction part, the Columbus noise
reduction module also comprises a noise estimator. This noise
estimator (the LORE-noise estimator) is a new design with the
ambition of more accuracy and with less control complexity
than the existing noise estimators.
TO PLASMA PANELTO LCD PANEL
22
25
26
21
LVD SD +
LVD SD -
LVDSCLK+
LVDSCLK-
OR
LVD SB -
161718
LVD SB +
LVD SC -
192024
LVD SC +
EPLD
B20
SCALER
1P06
SCALER
B9
GRAPHIC
1
LVDS_VCC
ZOOM
11
10
121413
LVD SA +
LVD SA -
LVDSAp
LVDSAn
4N03
4N01
TXB0+
TXB0-
AE16
AF16
EPLD
B21
FLASH/CONTROL
B11
7C00
MX29LV040QC
1P07
FLASH
OCMDATA
EXTERNAL
1
11
LVDS_VCC
ROM
ROM
12
LVD SA -
512Kx8
OCMADDR
INTERFACE
131415
LVD SA +
LVD SB -
LVDSBn
4N07
TXB1-
AE15
151918
LVD SB +
LVDSBp
4N05
TXB1+
AF15
DISPLAY
LVDSC-
LVDSCn
4N11
TXB2-
AE14
GEN.
TIMING
202726
LVDSC+
LVDSCp
4N09
TXB2+
AF14
28
22
21
LVDSD+
LVDSD-
LVDSCLK-
LVDSDp
LVDSDn
LVDSCLKn
4N13
4N15
TXB3-
TXB3+
AF11
AF12
OUT BLENDER
OSD CONTROLLER
4N19
TXBC-
AF13
BRIGHTNESS/CONTRAST/HUE/SAT
23
LVDSCLK+
LVDSCLKp
4N17
TXBC+
AE12
9.7Video: Scaler Part (Diagram B7, B8 and B9)
The Genesis gm1501 Scaler is a dual channel graphics and
video processing IC for LCD monitors and televisions
incorporating Picture in Picture, up to SXGA output resolutions.
The Scaler controls the display processing in an LCD TV, e.g.
like the deflection circuit in a CRT-based TV. It controls all the
view modes (e.g. like "zooming" and "shifting"). Features like
PC (VGA) or HD inputs, are also handled by this part.
HDPCSide-AVEXT2EXT1TV
LVD SA p
LVD SA n
LVD SB p
LVD SB n
LVDSCp
LVD SC n
LVDSDp
LVD SD n
LVDSCLKp
LVDSCLKn
TXBC+
TXBC-
RGB
RGB
7N02
EP1C12F256C8N
UART
EPLD
PIXEL+
INTERFACE
PROCESSOR
SD_HD_SEL H H H H H H
PC_HD_DET H H H H L H
RGB|CVI_HDA_SEL L H L L L L
RAM
MICRO
INTERNAL
CONTROLLER
VIDEO
ZOOM
Only for sets with
OR
7P02
THC63LVDM83R
PIXEL PLUS
7N04
THC63LVDF84B
TXB0+
TXB0-
LVD S
LVD S
TXB1+
MITTER
TRANS-
RECEIVER
INTERFACE
TXB1-
TXB2+
TXB2-
TXB3+
TXB3-
260705
F_15430_062.eps
7401
GM1501
SCALER
B7
MUX-SYNC INTERFACE
B13
7E01
C3
SOG
27
R_SDTV
F624
D2
R_PR+
R-PR-ADC
171411
3
G_SDTV
F625
F626
B3B3B3
C2
G_Y+
G-Y-ADC
7251
B_SDTV
SC1_R_CVI_Pr_IN
ANALOG
B2
B_PB+
B-PB-ADC
SC1_G_CVI_Y_IN
B13
B13
PORT
INPUT
I_PC_HD_SEL
12
9
7E02
11
5
BINA|Pb
SC1_B_CVI_Pb_IN
B13
B14
14
15
GINA|YINA
B14
2
1
RINA|Pr
B14
PC_HD_DET
7604
PC_HD_SEL
19
7E03
1
Vsync_SDTV
B3
L3
AVSYNC
8
5
15
2
V_PC
B14
L4
AHSYNC
4
1
14
12
H_PC
13
Hsync_SDTV
B14
B7
SD_HD_SEL
10,11
B3
+2V5_DDR
SDRAM
7B010
B10
STORE
FRAME
FSDATA
95
K4D263238F
CONTROL
SDRAM
1Mx32x4
B13
Vsync_SDTV
FSADDR
B13
Hsync_SDTV
COLUMBUS
(Dig. PAL/NTC Comb)
7M00
B19
7L04
MST9883C
ADC
B18
T6TU5XBG
EF
7L01
INTF_V_OUT
COL_Do(1-7)
COLUMBUS
DIGITAL COMB
COL_Di(1-7)
A/D
CONV.
43
543031
EF
7L03
INTF_U_OUT
COL_YB(1-7)
FILTER
COL_YA(1-7)
48
EF
7L02
INTF_Y_OUT
PORT
INPUT
DVI/HDMI
B14
5Q23
B13
H_PC
14
C14
HDMI_VVS
HDMI_VHS
8
4
7E05
5
1
V_HDMI
H_HDMI
7D03
B13
HDMI
33
34
HOTPLUG
RXC+IN
RXC-IN
SII9993CTG100
HDMI_Y(0-7)
HDMI
RECEIVER
PANELLINK
HDMI_CbCr(1-7)
B12
RX0-
RX1-
RX2-
RX1+
RX2+
3
2
1
4
5
1Q03
CVI-2
PC-VGA/
6
1
RX0+
789
RXC-
RXC+
11
10
12
182
19
HDMI/PC-D
B2,B13
B2,B13
B2,B13
B7
COL_D
COL_A
DRAM
512Kx16x2
7M01
MSM56V16
57
56
SCL
SDA
B2
B2
B2
SC1_R_CVI_Pr_IN
SC1_G_CVI_Y_IN
SC1_B_CVI_Pb_IN
15144
7E00
113352
BINA|Pb
SC1_CV1_DMMI_G_Y_IN
SC1_CV1_DMMI_R_Pr_IN
SC1_CV1_DMMI_B_Pb_IN
B13
B23
B23
B23
BINA|Pb
5Q01
1
1Q01
DIGITAL IO
15
10
5
B22
12
RINA|Pr
GINA|YINA
B13
B13
RINA|Pr
GINA|YINA
5Q11
5Q06
3
2
5Q21
6
1
RGB|CVI_HDA_SEL
9
V_PC
13
11
Figure 9-5 Block diagram scaler part
EN 98LC4.8A AA9.
Circuit Descriptions, Abbreviation List, and IC Data Shee ts
9.7.1Teletext Path
In Pixel Plus and Digital Crystal Clear models, which have an
ADC (B18) and Columbus 3D combfilter (B19), the digital input
of the scaler is used for the digital video signal (Columbus
output), whereas the analogue RGB input input of the scaler is
used for teletext. This means that no mixed mode (video plus
teletext simultaneously) is possible. In Crystal Clear models,
which do not have an ADC and Columbus, the analogue RGB
input of scaler is used for both video and teletext (generated by
the Hercules). The digital input of the Scaler is not used in
Crystal Clear TV sets. See also the block diagrams at the
beginning of this chapter. When faultfinding, checking the
teletext path may be useful: if there is sound and teletext, but
no video and user menu (blank screen), the digital path
(Hercules - ADC - Columbus - Scaler) is faulty. If there is sound
but no teletext, the back-end part (Scaler - LCD panel) is faulty.
9.7.2Features
The Scaler provides several key IC functions:
•Scaling.
•Auto-configuration/ Auto-Detection.
•Various Input Ports:
– Analog RGB.
– Video Graphics.
•Integrated LVDS Transmitter.
•On-chip Micro-controller
9.7.3Inputs
Analog RGB
The RGB input is fed to pins B2, C2 and D2 of the Scaler IC
(Genesis GM1501, item 7801, see circuit diagram B8). This
input consists of either the Hercules RGB output or the RGB/
YpbPr input of the VGA connector. The Scaler can switch
between the two signals via the PC_HD_SEL signal and
selection IC SM5301 (see circuit diagram B13).
PC (VGA) Input
The VGA input is processed by the VGA block of the Scaler.
The Scaler supports pixel frequencies up to 165MHz.
YpbPr format is also supported via the VGA interface and
covers a resolution of 480p/560p/720p/1080i.
9.7.4Output
The Display Output Port provides data and control signals that
permit the Scaler to connect to a variety of display devices
using a TTL or LVDS interface. The output interface is
configurable for single or dual wide TTL/LVDS in 18, 24 or 30bit RGB pixels format. All display data and timing signals are
synchronous with the DCLK output clock. The integrated LVDS
transmitter is programmable to allow the data and control
signals to be mapped into any sequence depending on the
specified receiver format.
9.8Audio Processing
Hercules
AUDIO-LSL
SIF
SIF Input
FM
SSIF Input
AUDIO-IN5L
AUDIO-IN5R
AUDIO-IN3L
AUDIO-IN3R
AUDIOI-N4L
AUDIO-IN4R
AUDIO-IN2L
AUDIO-IN2R
Is used on the DMMI
=> No SCART2/AV2 for
Bolt-on
I2S
HDMIDAC
PC_HDMI_AUD_SEL
(From Scaler,
GPIO_G07_B0)
PC in
Tuner
AV1 in
*AP/USA/Latam
SCART1 in
*Europe only
AV2 in
*AP/USA/Latam
SCART2 in
*Europe only
Side in
*All region
HEF4053
3X SPDT
Figure 9-6 Block diagram audio processing
The audio decoding is done entirely via the Hercules. The IF
output from the Tuner is fed directly to either the Video-IF or the
Sound-IF input depending on the type of concept chosen.
There are mainly two types of decoder in the Hercules, an
analogue decoder that decodes only Mono, regardless of any
standards, and a digital decoder (or DEMDEC) that can decode
both Mono as well as Stereo, again regardless of any
standards.
In this chassis, the analogue decoder is used in two cases:
•It is used for AM Sound demodulation in the Europe
SECAM LL’ transmission.
•It is used for all FM demodulation in AV-Stereo sets.
9.8.1Diversity
The diversity for the Audio decoding can be broken up into two
main concepts:
•The Quasi Split Sound concept used in Europe and some
AP sets.
•The Inter Carrier concept, used in NAFTA and LATAM.
The UOC-III family makes no difference anymore between
QSS- and Intercarrier IF, nearly all types are softwareswitchable between the two SAW-filter constructions.
Simple data settings are required for the set to determine
whether it is using the Inter Carrier or the QSS concept. These
settings are done via the “QSS” and “FMI” bit found in SAM
mode. Due to the diversity involved, the data for the 2 bits are
placed in the NVM location and it is required to write once
during startup.
On top of that, it can be further broken down into various
systems depending on the region. The systems or region
chosen, will in turn affect the type of sound standard that is/are
allowed to be decoded.
•For the case of Europe, the standard consists of BG/DK/I/
LL’ for a Multi-System set. There are also versions of
Eastern Europe and Western Europe set and the standard
for decoding will be BG/DK and I/DK respectively. FM
Radio is a feature diversity for the Europe sets. The same
version can have either FM Radio or not, independent of
the system (e.g. sets with BG/DK/I/LL’ can have or not
have FM radio).
•For the case of NAFTA and LATAM, there is only one
transmission standard, which is the M standard. The
diversity then will be based on whether it has a dBx noise
reduction or a Non-dBx (no dBx noise reduction).
•For the case of AP, the standard consists of BG/DK/I/M for
a Multi-System set. The diversity here will then depend on
AUDIO-LSR
AUDIO-OUTHPL
AUDIO-OUTHPR
AUDIO-OUTSL
AUDIO-OUTSR
P0.0/I2SDO1
P0.0/I2SDI1
P0.3/I2SCLK
105
103
For iTV only
106
2x
Amplifier
Constant Level Out
*Europe only
Amplifier
Monitor out
* Not available
SCART2 out
*Europe only
SCART1 out
*Europe only
Lip Sync
Circuit
2x Stereo
Speaker
Headphone
E_14490_061.eps
121104
Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 99LC4.8A AA9.
the region. AP China can have a Multi-System and I/DK
version. For India, it might only be BG standard.
9.8.2Functionality
The features available in the Hercules are as follows:
•Treble and Bass Control.
•Surround Sound Effect that includes:
– Incredible Stereo.
– Incredible Mono.
– 3D Sound (not for AV Stereo).
– TruSurround (not for AV Stereo).
– Virtual Dolby Surround, VDS422 (not for AV Stereo).
– Virtual Dolby Surround, VDS423 (not for AV Stereo).
– Dolby Pro-Logic (not for AV Stereo).
•Bass Feature that includes:
– Dynamic Ultra-Bass.
– Dynamic Bass Enhancement.
– BBE (not for AV Stereo).
•Auto-Volume Leveler.
•5 Band Equalizer.
•Loudness Control.
All the features stated are available for the Full Stereo versions
and limited features for the AV Stereo
9.8.3Audio Amplifier
The audio amplifier part is very straightforward. It uses two
integrated TDA8931T power amplifiers for the L and R
channels; each amplifier IC is able to deliver a maximum output
of 20 W
continuously in a 4-6 ohm speaker without needing
RMS
a heatsink.
The operating supply for the amplifier may range from 12 V to
32 V; in the LC04x TV set, depending on the model, supply
voltages of 18 V (for the 5 W / 8 ohm version) or 24 V (for the
15 W / 4 ohm version) are used.
Muting is done via the SOUND_ENABLE line connected to pins
7 of both amplifier-ICs, which comes from the Hercules.
IIC BUS1
Tuner
HREC
RST
Sel IF/
SDM
Status1
Light
Sense
P50_LINE_ITV_IR_SW
ComPair
Sound
Amp
Sound_Enable
127
111
P1.4
P2.0
114
P2.3
116
ADC1
115
ADC0
HERCULESSCALER
123
P2.5
97
102
122
INT0
P0.4
P2.4
RC
MUX
EXT_MUTE
TV_IR
Standby
128
P1.5
POWER
DOWN
NVM
NVM_WP
SDA 109
ADC3 120
SCL 108
INT1 98
104
P0.2
P1.1 99
126
INT2
TV_IRQ
TV_SC_COM
Keyboard
POWER_DOWN
SDA
SCL
93
NVRAM
_SDA
78 DDC_SDA_VGA
77 DDC_SCL_VGA
82 GPIO1
81 GPIO0
90 GPIO7
GPIO23
+3V3STBY
111
IIC BUS 2
103 106 107 108
HIGH or
LOW
level input
NVM
NVM_WP
83
92
GPIO2
NVRAM
_SCL
ROM_DATA0-7
5 6 7
Flash ROM
Figure 9-7 Micro Controller block diagram
9.9.3Basic Specification
The Micro Controller operates at the following supply voltages:
•+3.3 V
•+1.8 V
•I
at pins 4, 88, 94, and 109.
DC
at pins 93, 96, and 117.
DC
2
C pull up supply: +3.3VDC.
9.9.4Pin Configuration and Functionality
The ports of the Micro Controller can be configured as follows:
•A normal input port.
•An input ADC port.
•An output Open Drain port.
•An output Push-Pull port.
•An output PWM port.
•Input/Output Port
The following table shows the ports used for the LC04 control:
72
71
GPROBE for Debug
or ComPair(Scaler)
1407
1406
1405
187193194
85
(GPIO4)
88
(GPIO5)
89
(GPIO6)
68
(PBIAS)
67
(PPWR)
99
(PWM1)
98
(GPIO11/
PWM0)
ROM_ADD0-17
PC_DET
SD_PCHD_SEL
PC_HD_SEL
LAMP_ON_OFF
PANEL_PWR_CTL
HD_FILTER
BACK_LIGHT_ADJ1
E_14490_062.eps
+3V3STBY
160904
9.8.4Audio: Lip Sync
No Lip Sync adjustments are neccessary in this model.
9.9Control
9.9.1Hercules
The System Board has two main micro-controllers on board.
These are:
•On-chip x86 micro-controller (OCM) from Genesis L CD TV/
Monitor Controller.
•On-chip 80C51 micro-controller from Philips
Semiconductor UOCIII (Hercules) series.
Each micro-controller has it own I
internal devices.
The Hercules is integrated with the Video and Audio Processor.
For dynamic data storage, such as SMART PICTURE and
SMART SOUND settings, an external NVM IC is being used.
Another feature includes an optional Teletext/Closed Caption
decoder with the possibility of different page storage depending
on the Hercules type number.
9.9.2Block Diagram
The block diagram of the Micro Controller application is shown
below.
The description of each functional pin is explained below:
EN 100LC4.8A AA9.
Circuit Descriptions, Abbreviation List, and IC Data Shee ts
•LED. This signal is used as an indication for the Standby,
Remote and Error Indicator. Region diversity:
– During protection mode, the LED blinks and the set is
in standby mode.
– During error conditions it blinks at a predefined rate.
– After receiving a valid RC-5 or local keyboard
command it flashes once.
– For sets with error message indication, the LED blinks
when message is active and the set is in standby
mode.
•SCL. This is the clock wire of the two-wire single master bidirectional I
•SDA. This is the data wire of the two-wire single master bidirectional I
2
C bus.
2
C bus.
•STANDBY. The Hercules generates this signal. This can
enable the power supply in normal operation and disable it
during Standby. It is of logic “high” (3.3 V) under normal
operation and “low” (0 V) during Standby.
•IR. This input pin is connected to an RC5 remote control
receiver.
•SEL-IF. This is an output pin to switch the Video SAW filter
between M system and other systems.
– 0: NTSC M (default)
– 1: PAL B/G, DK, I, L
•NVM_WP. The global protection line is used to enable and
disable write protection to the NVM. When write to the
NVM is required, pin 7 of the NVM must be pulled to logic
‘0’ first (via Write_Protect of the micro-controller pin) before
a write is performed. Otherwise pin 7 of NVM must always
be at logic “1”
– 0: Disabled
– 1: Enabled (default)
•SOUND_ENABLE. This pin is used to MUTE the audio
amplifier. It is configured as push pull.
•STATUS_1. This signal is used to read the status of the
SCART 1 input.
•STATUS_2. This signal is used to read the status of the
SCART 2 input.
•HERC_RESET. This pin is used to switch the +1.8V
supply.
•POWER_DOWN. The power supply generates this signal.
Logic “high” (3.3 V) under normal operation of the TV and
goes “low” (0 V) when the Mains input voltage supply goes
below 70 V
.
AC
•KEYBOARD. Following are the Keyboard functions and
the step values (8 bit) for it.
Table 9-3 Local keyboard values
Function
Voltage
(V
DC
)
Step values
(8 bit)
NAFTA Standby00 - 6
Ch +0.437 - 33
Exit Factory (Ch- and Vol-) 0.6934 - 53
Ch -0.9354 - 73
Menu (Vol - and Vol +)1.1974 - 96
Vol -1.4997 - 121
DVD Eject1.8122 - 147
Vol +2.12148 - 169
•TV_IRQ. This signal is the interrupt from the Scaler IC.
•TV_SC_COM. This signal is used for the communication
with the Scaler IC.
•EXT_MUTE. This signal is used to reduce the Switch-off
plop.
9.10 Abbreviation List
0/6/12SCART switch control signal on A/V
board. 0 = loop through (AUX to TV), 6
= play 16:9 format, 12 = play 4:3
means of a predefined TXT page
ADCAnalogue to Digital Converter
AFCAutomatic Frequency Control; Control
signal used to tune and lock to the
correct frequency
AGCAutomatic gain control (feedback)
signal to the tuner. This circuit ensures
a constant output amplitude
regardless of the input amplitude
AMAmplitude Modulation; A "data
encoding to a carrier" method, such
that the carrier amplitude is
proportional to the data value
AP or A/PAsia Pacific
ARAspect Ratio: 4 by 3 or 16 by 9
ASDAutomatic Standard Detection
AVExternal Audio Video
B-SC1-INBlue SCART1/EXT1 in
B-SC2-INBlue SCART2/EXT2 in
B-TXTBlue TeleteXT
B/GMonochrome TV system. Sound
carrier distance is 5.5 MHz. B= VHF-
band, G= UHF-band
BOCMABimos one Chip Mid-end Architecture:
video and chroma decoder
C-FRONTChrominance front input
CBACircuit Board Assembly (also called
PCB or PWB)
CLConstant Level: audio output to
connect with an external amplifier
CLUTColour Look-Up Table
COLUMBUSCOLour LUMinance Baseband
Universal Subsystem. IC performing
noise reduction and 2D/3D comb
filtering
ComPairComputer aided rePair. A tool for
diagnosing a TV through a PC
controlled interface
CSMCustomer Service Mode
CVBSComposite Video and Blanking Signal;
A single video signal that contains
luminance, colour, and timing
information
CVBS-EXTCVBS signal from external source
(VCR, VCD, etc.)
CVBS-INTCVBS signal from internal Tuner
CVBS-MONCVBS monitor signal
CVBS-TER-OUTCVBS TERrestrial OUTput signal
DACDigital to Analogue Converter
DBEDynamic Bass Enhancement: extra
low frequency amplification
DFUDirections For Use: Owner's manual
DNRDynamic Noise Reduction / Digital
Noise Reduction; Noise reduction
feature of the set
DRAMDynamic RAM; dynamically refreshed
RAM
DSPDigital Signal Processing
DSTDealer Service Tool; Special remote
control designed for dealers to enter
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