Copyright 2008 Koninklijke Philips Electronics N.V.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.
Published by TY 0872 BU TV Consumer CarePrinted in the NetherlandsSubject to modificationEN 3122 785 18171
EN 2LC8.1E LB1.
Technical Specifications, Connections, and Chassis Overview
1.Technical Specifications, Connections, and Chassis Overview
Index of this chapter:
1.1 Technical Specifications
1.2 Connection Overview
1.3 Chassis Overview
Notes:
•Figures can deviate due to the different set executions.
•Specifications are indicative (subject to change).
1.1Technical Specifications
1.1.1Vision
Display type: LCD
Screen size: 32" (82 cm), 16:9
Resolution (HxV pixels): 1366 × 768
Dyn. contrast ratio: 24000:1
Min. light output (cd/m
Typ. response time (ms): 6
Viewing angle (HxV degrees): 176 × 176
Tuning system: PLL
Presets/channels: 99 presets
Tuner bands: VHF, UHF, S, H
TV Colour systems: PAL B/G, D/K, I
Technical Specifications, Connections, and Chassis Overview
EN 3LC8.1E LB1.
1.2Connection Overview
12
SERV. U
Ω
75
TV ANTENNA
3
HDMI
EXT 1
EXT 2
(RGB/CVBS)
(CVBS)
4
5
Figure 1-1 Side and rear I/O connections
Note: The following connector colour abbreviations are used
(acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy=
Grey, Rd= Red, Wh= White, and Ye= Yellow.
1.2.1Connections
1 - Aerial - In
-- IEC-type (EU) Coax, 75 ohm D
6
7
8
YPbPr
9
10
I_18170_027.eps
060808
4 - EXT2: CVBS - In/Out, Audio - In/Out
21
20
E_06532_001.eps
2
1
050404
Figure 1-2 SCART connector
1-Audio R 0.5 V
2-Audio R 0.5 V
3-Audio L 0.5 V
/ 1 kohm k
RMS
/ 10 kohm j
RMS
/ 1 kohm k
RMS
4-Ground Gnd H
5-Ground Gnd H
6-Audio L 0.5 V
/ 10 kohm j
RMS
7-n.c.
8-Function Select 0 - 2 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3 j
9 - Ground Gnd H
10 - n.c.
11 - n.c
12 - n.c.
13 - Ground Gnd H
14 - Ground Gnd H
15 - Video/C 0.7 V
16 - n.c.
/ 75 ohm j
PP
17 - Ground Gnd H
18 - Ground Gnd H
19 - Video CVBS 1 V
20 - Video CVBS 1 V
21 - Shield Gnd H
/ 75 ohm k
PP
/ 75 ohm j
PP
5 - EXT1: Video RGB - In, CVBS - In/Out, Audio - In/Out
2 - Service Connector (UART)
1-UART_TX Transmit k
2-Ground Gnd H
3-UART_RX Receive j
3 - HDMI: Digital Video, Digital Audio - In
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 - CEC Control channel jk
14 - n.c.
15 - DDC_SCL DDC clock j
16 - DDC_SDA DDC data jk
17 - Ground Gnd H
18 - +5V j
19 - HPD Hot Plug Detect j
20 - Ground Gnd H
21
20
E_06532_001.eps
2
1
050404
Figure 1-3 SCART connector
1 - Audio R 0.5 V
2 - Audio R 0.5 V
3 - Audio L 0.5 V
4 - Ground Gnd H
/ 1 kohm k
RMS
/ 10 kohm j
RMS
/ 1 kohm k
RMS
5 - Ground Gnd H
6 - Audio L 0.5 V
7 - Video Blue 0.7 V
8 - Function Select 0 - 2 V: INT
/ 10 kohm j
RMS
/ 75 ohm j
PP
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3 j
9 - Ground Gnd H
10 - n.c.
11 - Video Green 0.7 V
12 - n.c.
/ 75 ohm j
PP
13 - Ground Gnd H
14 - Ground Gnd H
15 - Video Red 0.7 V
/ 75 ohm j
PP
16 - Status/FBL 0 - 0.4 V: INT
1 - 3 V: EXT / 75 ohm j
17 - Ground Gnd H
18 - Ground Gnd H
19 - Video CVBS 1 V
20 - Video CVBS 1 V
/ 75 ohm k
PP
/ 75 ohm j
PP
21 - Shield Gnd H
EN 4LC8.1E LB1.
Technical Specifications, Connections, and Chassis Overview
6 - S-Video (Hosiden): Video Y/C - In
1 - Ground Y Gnd H
2 - Ground C Gnd H
3 - Video Y 1 V
4 - Video C 0.3 V
7, 8 - Cinch: Video CVBS - In, Audio - In
Ye - Video CVBS 1 V
Wh - Audio L 0.5 V
Rd - Audio R 0.5 V
/ 75 ohm j
PP
P / 75 ohm j
PP
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
1.3Chassis Overview
MAIN POWER
A
SUPPLY PANEL
KEYBOARD CONTROL
E
PA NE L
9 - Cinch: Video YPbPr - In, Audio - In
Gn - Video Y 1 V
Bu - Video Pb 0.7 V
Rd - Video Pr 0.7 V
Wh - Audio L 0.5 V
Rd - Audio R 0.5 V
10 - Head phone - Out
Bk - Head phone 32 - 600 ohm / 10 mW rt
/ 75 ohm jq
PP
/ 75 ohm jq
PP
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
SMALL SIGNAL
BOARD
B
IR & LED PANEL
J
Figure 1-4 PWB/CBA locations
I_18170_028.eps
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Safety Instructions, Warnings, and Notes
2.Safety Instructions, Warnings, and Notes
EN 5LC8.1E LB2.
Index of this chapter:
2.1 Safety Instructions
2.2 Warnings
2.3 Notes
2.1Safety Instructions
Safety regulations require the following during a repair:
•Connect the set to the Mains/AC Power via an isolation
transformer (> 800 VA).
•Replace safety components, indicated by the symbol h,
only by components identical to the original ones. Any
other component substitution (other than original type) may
increase risk of fire or electrical shock hazard.
Safety regulations require that after a repair, the set must be
returned in its original condition. Pay in particular attention to
the following points:
•Route the wire trees correctly and fix them with the
mounted cable clamps.
•Check the insulation of the Mains/AC Power lead for
external damage.
•Check the strain relief of the Mains/AC Power cord for
proper function.
•Check the electrical DC resistance between the Mains/AC
Power plug and the secondary side (only for sets that have
a Mains/AC Power isolated power supply):
1. Unplug the Mains/AC Power cord and connect a wire
between the two pins of the Mains/AC Power plug.
2. Set the Mains/AC Power switch to the “on” position
(keep the Mains/AC Power cord unplugged!).
3. Measure the resistance value between the pins of the
Mains/AC Power plug and the metal shielding of the
tuner or the aerial connection on the set. The reading
should be between 4.5 MΩ and 12 MΩ.
4. Switch “off” the set, and remove the wire between the
two pins of the Mains/AC Power plug.
•Check the cabinet for defects, to prevent touching of any
inner parts by the customer.
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.
•Be careful during measurements in the high voltage
section.
•Never replace modules or other components while the unit
is switched “on”.
•When you align the set, use plastic rather than metal tools.
This will prevent any short circuits and the danger of a
circuit becoming unstable.
2.3Notes
2.3.1General
•Measure the voltages and waveforms with regard to the
chassis (= tuner) ground (H), or hot ground (I), depending
on the tested area of circuitry. The voltages and waveforms
shown in the diagrams are indicative. Measure them in the
Service Default Mode (see chapter 5) with a colour bar
signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated
otherwise) and picture carrier at 475.25 MHz for PAL, or
61.25 MHz for NTSC (channel 3).
•Where necessary, measure the waveforms and voltages
with (D) and without (E) aerial signal. Measure the
voltages in the power supply section both in normal
operation (G) and in stand-by (F). These values are
indicated by means of the appropriate symbols.
2.3.2Schematic Notes
•All resistor values are in ohms, and the value multiplier is
often used to indicate the decimal point location (e.g. 2K2
indicates 2.2 kΩ).
•Resistor values with no multiplier may be indicated with
either an “E” or an “R” (e.g. 220E or 220R indicates 220 Ω).
•All capacitor values are given in micro-farads (μ=× 10
nano-farads (n =× 10
•Capacitor values may also use the value multiplier as the
decimal point indication (e.g. 2p2 indicates 2.2 pF).
•An “asterisk” (*) indicates component usage varies. Refer
to the diversity tables for the correct values.
•The correct component values are listed in the Spare Parts
List. Therefore, always check this list when there is any
doubt.
2.3.3BGA (Ball Grid Array) ICs
Introduction
For more information on how to handle BGA devices, visit this
URL: www.atyourservice.ce.philips.com (needs subscription,
not available for all regions). After login, select “Magazine”,
then go to “Repair downloads”. Here you will find Information
on how to deal with BGA-ICs.
BGA Temperature Profiles
For BGA-ICs, you must use the correct temperature-profile,
which is coupled to the 12NC. For an overview of these profiles,
visit the website www.atyourservice.ce.philips.com (needs
subscription, but is not available for all regions)
You will find this and more technical information within the
“Magazine”, chapter “Repair downloads”.
For additional questions please contact your local repair help
desk.
2.3.4Lead-free Soldering
Due to lead-free technology some rules have to be respected
by the workshop during a repair:
•Use only lead-free soldering tin Philips SAC305 with order
code 0622 149 00106. If lead-free solder paste is required,
please contact the manufacturer of your soldering
equipment. In general, use of solder paste within
workshops should be avoided because paste is not easy to
store and to handle.
•Use only adequate solder tools applicable for lead-free
soldering tin. The solder tool must be able:
– To reach a solder-tip temperature of at least 400°C.
– To stabilize the adjusted temperature at the solder-tip.
– To exchange solder-tips for different applications.
•Adjust your solder tool so that a temperature of around
360°C - 380°C is reached and stabilized at the solder joint.
Heating time of the solder-joint should not exceed ~ 4 sec.
Avoid temperatures above 400°C, otherwise wear-out of
tips will increase drastically and flux-fluid will be destroyed.
To avoid wear-out of tips, switch “off” unused equipment or
reduce heat.
•Mix of lead-free soldering tin/parts with leaded soldering
tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If this cannot be avoided, carefully
clear the solder-joint from old tin and re-solder with new tin.
-9
), or pico-farads (p =× 10
-12
-6
),
).
EN 6LC8.1E LB3.
2.3.5Alternative BOM identification
It should be noted that on the European Service website,
“Alternative BOM” is referred to as “Design variant”.
The third digit in the serial number (example:
AG2B0335000001) indicates the number of the alternative
B.O.M. (Bill Of Materials) that has been used for producing the
specific TV set. In general, it is possible that the same TV
model on the market is produced with e.g. two different types
of displays, coming from two different suppliers. This will then
result in sets which have the same CTN (Commercial Type
Number; e.g. 28PW9515/12) but which have a different B.O.M.
number.
By looking at the third digit of the serial number, one can
identify which B.O.M. is used for the TV set he is working with.
If the third digit of the serial number contains the number “1”
(example: AG1B033500001), then the TV set has been
manufactured according to B.O.M. number 1. If the third digit is
a “2” (example: AG2B0335000001), then the set has been
produced according to B.O.M. no. 2. This is important for
ordering the correct spare parts!
For the third digit, the numbers 1...9 and the characters A...Z
can be used, so in total: 9 plus 26= 35 different B.O.M.s can be
indicated by the third digit of the serial number.
Identification: The bottom line of a type plate gives a 14-digit
serial number. Digits 1 and 2 refer to the production center (e.g.
AG is Bruges), digit 3 refers to the B.O.M. code, digit 4 refers
to the Service version change code, digits 5 and 6 refer to the
production year, and digits 7 and 8 refer to production week (in
example below it is 2006 week 17). The 6 last digits contain the
serial number.
Directions for Use
MODEL :
PROD.NO:
2.3.6Board Level Repair (BLR) or Component Level Repair
(CLR)
If a board is defective, consult your repair procedure to decide
if the board has to be exchanged or if it should be repaired on
component level.
If your repair procedure says the board should be exchanged
completely, do not solder on the defective board. Otherwise, it
cannot be returned to the O.E.M. supplier for back charging!
2.3.7Practical Service Precautions
•It makes sense to avoid exposure to electrical shock.
•Always respect voltages. While some may not be
32PF9968/10
AG 1A0617 000001
Figure 2-1 Serial number (example)
While some sources are expected to have a possible
dangerous impact, others of quite high potential are of
limited current and are sometimes held in less regard.
dangerous in themselves, they can cause unexpected
reactions that are best avoided. Before reaching into a
powered TV set, it is best to test the high voltage insulation.
It is easy to do, and is a good service precaution.
MADE IN BELGIUM
220-240V 50/60Hz
~
VHF+S+H+UHF
BJ3.0E LA
S
E_06532_024.eps
128W
260308
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.
4.1Cable Dressing
Mechanical Instructions
EN 7LC8.1E LB4.
Figure 4-1 Cable dressing 32" sets
I_18170_029.eps
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EN 8LC8.1E LB4.
Mechanical Instructions
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).
4.2.1Foam Bars
1
Required for sets
1
42"
Figure 4-2 Cable dressing 42" sets
The foam bars (order code 3122 785 90580 for two pieces) can
be used for all types and sizes of Flat TVs. See figure “Foam
bars” for details. Sets with a display of 42" and larger, require
four foam bars [1]. Ensure that the foam bars are always
supporting the cabinet and never only the display.
Caution: Failure to follow these guidelines can seriously
damage the display!
By laying the TV face down on the (ESD protective) foam bars,
a stable situation is created to perform measurements and
alignments. By placing a mirror under the TV, you can monitor
the screen.
I_18170_030.eps
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E_06532_018.eps
Figure 4-3 Foam bars
171106
Mechanical Instructions
EN 9LC8.1E LB4.
4.3Assy/Panel Removal MG8 Styling
Pictures are taken from 32” set.
4.3.1Rear Cover
Warning: Disconnect the mains power cord before you remove
the rear cover.
You can remove the backcover without removing the stand.
4.3.2Speakers
Refer to next figure for details.
1. Unplug the connectors [1].
2. Remove the screws [2] and lift the speaker from the back
cover.
1
(
2x
)
2
2
I_17911_001.eps
300608
4.3.4Keyboard Control Panel
Refer to next figure for details.
1. Unplug the key board connector from the IR & LED board.
2. Remove the screws [1].
3. Lift the unit and take it out of the set.
When defective, replace the whole unit.
1
1
Figure 4-6 Key Board
4.3.5Main Power Supply Panel 32"
I_17911_003.eps
300608
Figure 4-4 Speakers
4.3.3IR & LED Panel
Refer to next figure for details.
1. Unplug connectors [1].
2. Release the clips and take the panel out.
When defective, replace the whole unit.
1
Refer to next figure for details.
1. Unplug connectors [1].
2. Remove the fixation screws [2].
3. Take the board out.
When defective, replace the whole unit.
2
2
1
2
1
2x
)
2
2
1
1
(
2
I_18170_050.eps
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Figure 4-7 Main Power Supply Panel 32"
I_17911_002.eps
300608
Figure 4-5 IR & LED Board
EN 10LC8.1E LB4.
4.3.6Small Signal Board (SSB)
Mechanical Instructions
Refer to next figure for details.
Caution: it is mandatory to remount all different screws at their
original position during re-assembly. Failure to do so may result
in damaging the SSB.
1. Unplug the LVDS connector [1].
Caution: be careful, as this is a very fragile connector!
2. Unplug the connectors [2].
3. Remove the screws [3].
4. The SSB can now be taken out of the set, together with the
side cover.
5. To remove the side cover, push back the clamp [4] using a
screw driver.
6. Pull the cover sidewards from the SSB.
4.3.7LCD Panel
Refer to next figures for details.
1. Remove the stand [1].
2. Unplug the LVDS connector [2].
3. Unplug connectors [3] from
– Main Power Supply Panel
– Speakers
– IR & LED Panel.
4. Remove any adhesive tape [4] that prevents cables being
removed from the set.
5. Remove all cables from clamps [5] that prevents them from
being removed from the set.
3
3
2
1
3
2
(
3x
)
3
4
3
I_18170_051.eps
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Figure 4-8 Small Signal Board
6. Remove the VESA stand [6].
7. Remove the Main Power Supply Panel together with it’s subframe [7].
8. Remove the Small Signal Board together with it’s subframe [8].
9. Remove the subframe that holds the stand [9].
10. Remove the clamps that secure the LCD Panel [10] and
take the panel out.
6
6
2
8
7
7
8
4
3
7
3
2x)
(
7
4
3
88
4
3
5
11
4
11
3
3
I_18170_052.eps
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Figure 4-9 LCD Panel -1-
Mechanical Instructions
EN 11LC8.1E LB4.
1010
10
10
4.4Set Re-assembly
10
9
99
9
Figure 4-10 LCD Panel -2-
99
9
I_18170_053.eps
10
310708
To re-assemble the whole set, execute all processes in reverse
order.
Notes:
•While re-assembling, make sure that all cables are placed
and connected in their original position. See figure “Cable
dressing”.
•Pay special attention not to damage the EMC foams on the
SSB shields. Ensure that EMC foams are mounted
correctly.
EN 12LC8.1E LB5.
Service Modes, Error Codes, and Fault Finding
5.Service Modes, Error Codes, and Fault Finding
Index of this chapter:
5.1 Test Points
5.2 Service Modes
5.3 Service Tools
5.4 Error Codes
5.5 The Blinking LED Procedure
5.6 Software Upgrading
5.7 Fault Finding and Repair Tips
5.1Test Points
In the chassis schematics and layout overviews, the test points
(Fxxx) are mentioned. In the schematics, test points are
indicated with a rectangular box around “Fxxx” or “Ixxx”, in the
layout overviews with a “half-moon” sign.
As most signals are digital, it will be difficult to measure
waveforms with a standard oscilloscope. Several key ICs are
capable of generating test patterns, which can be controlled via
ComPair. In this way it is possible to determine which part is
defective.
5.2Service Modes
The Service Mode feature is split into four parts:
•Simplified Service Default Mode (SDM).
•Service Alignment Mode (SAM).
•Customer Service Mode (CSM).
•Computer Aided Repair Mode (ComPair).
SDM and SAM offer features, which can be used by the Service
engineer to repair/align a TV set. Some features are:
•Activates the blinking LED procedure for error identification
when no picture is available (SDM).
•Make alignments (e.g. white tone), (de)select options,
enter options codes, reset the error buffer (SAM).
•Display information (“SAM” indication in upper right corner
of screen, error buffer, software version, options and option
codes, sub menus).
The CSM is a Service Mode that can be enabled by the
consumer. The CSM displays diagnosis information, which the
customer can forward to the dealer or call centre. In CSM
mode, “CSM”, is displayed in the top right corner of the screen.
The information provided in CSM and the purpose of CSM is to:
•Increase the home repair hit rate.
•Decrease the number of nuisance calls.
•Solved customers' problem without home visit.
•B is the region indication: E= Europe, A= AP/China,
U=NAFTA, L= LATAM.
•C is the display indication: L= LCD, P= Plasma.
•D is the language/feature indication: 1= standard, H=1080p
full HD.
•X is the main version number: this is updated with a major
change of specification (incompatible with the previous
software version). Numbering will go from 1 - 9 and A - Z.
– If the main version number changes, the new version
number is written in the NVM.
– If the main version number changes, the default
settings are loaded.
•YY is the sub version number: this is updated with a minor
change (backwards compatible with the previous versions)
Numbering will go from 00 - 99.
– If the sub version number changes, the new version
number is written in the NVM.
– If the NVM is fresh, the software identification, version,
and cluster will be written to NVM.
Display Option Code Selection
When after an SSB or display exchange, the display option
code is not set properly; it will result in a TV with “no display”.
Therefore, it is required to set this display option code after
such a repair.
To do so, press the following key sequence on a standard RC
transmitter: “062598” directly followed by MENU the OSD
“Panel Selection” will displayed on screen and “xxx”, where
“xxx” is a 3 digit decimal value of the panel type: see column
“Display code” in table “Option code overview” (ch. 8), or see
sticker on the side/bottom of the cabinet. When the value
is accepted and stored in NVM, the OSD “Panel Selection” will
be disappear set remain on, to indicate that the process has
been completed.
Display Option
Code
39mm
040
PHILIPS
MODEL:
32PF9968/10
27mm
PROD.SERIAL NO:
AG 1A0620 000001
(CTN Sticker)
E_06532_038.eps
240108
ComPair Mode is used for communication between a computer
and a TV on I
2
C /UART level and can be used by a Service
engineer to quickly diagnose the TV set by reading out error
codes, read and write in NVMs, communicate with ICs and the
uP (PWM, registers, etc.), and by making use of a fault finding
database. It will also be possible to up and download the
software of the TV set via I
2
C with help of ComPair. To do this,
ComPair has to be connected to the TV set via the compare
connector, which will be accessible through the rear of the set
(without removing the rear cover).
5.2.1General
Some items are applicable to all Service Modes or are general.
These are listed below.
Software Identification, Version, and Cluster
The software ID, version, and cluster will be shown in the main
menu display of SDM, SAM, and CSM.
The screen will show: “AAAABCD X.YY”, where:
•AAAA is the chassis name: LC81.
Figure 5-1 Location of Display Option Code sticker
During this algorithm, the NVM-content must be filtered,
because several items in the NVM are TV-related and not SSB
related (e.g. Model and Prod. S/N). Therefore, “Model” and
“Prod. S/N” data is changed into “See Type Plate”.
In case a call centre or consumer reads “See Type Plate” in
CSM mode, he needs to look to the side/bottom sticker to
identify the set, for further actions.
5.2.2Service Default Mode (SDM)
Purpose
This simplified SDM mode in LC8.1E LB chassis is used for
Error blinking only.
•Start the blinking LED procedure.
How to Activate
•Press the following key sequence on the remote control
transmitter: “062596” directly followed by the MENU
Service Modes, Error Codes, and Fault Finding
4
r
Y
r
EN 13LC8.1E LB5.
button (do not allow the display to time out between entries
while keying the sequence).
Note:
No SDM “Service” jumpers in this LC08.1E LB chassis.
No SDM “OSD” menu displayed on screen.
How to Exit
Switch the set to STANDBY by pressing the mains button on
the remote control transmitter or on the television set.
The error buffer will only be cleared when the “clear” command
is used in the SAM menu.
Note:
•If you switch the television set “off” by removing the mains
(i.e., unplugging the television), the television set will
remain in SDM when mains is re-applied, and the error
buffer is not cleared.
•In case the set is in Factory mode by accident (with “F”
displayed on screen), by pressing and hold “VOL-” and
“CH-” together should leave Factory mode.
5.2.3Service Alignment Mode (SAM)
Purpose
•To change option settings.
•To display / clear the error code buffer.
•To perform alignments.
Specifications
•Software version, error codes, and option settings display.
•Error buffer clearing.
•Option settings.
•Software alignments (Tuner, White Tone).
•ISP Mode (ComPair Mode) switching.
How to Activate
To activate SAM, use one of the following methods:
•Press the following key sequence on the remote control
transmitter: “062596” directly followed by the OSD/STATUS/INFO/i+ button (it depends on region which
button is present on the RC). Do not allow the display to
time out between entries while keying the sequence.
•Or via ComPair.
After entering SAM, the following screen is visible, with SAM in
the upper right corner of the screen to indicate that the
television is in Service Alignment Mode.
LC81EL1-1.0 WT- 1.
ERR XX XX XX XX XX
OP XXX XXX XXX XXX XXX XXX XXX
Clea
Options
Tune
RGB Align
ISP Mode
es
Figure 5-2 SAM menu
SAM
I_18170_031.eps
310708
5. 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.
6. Options. Used to set the option bits. See “Options” in the
“Alignments” chapter for a detailed description.
7. Tuner. Used to align the tuner. See “Tuner” in the
“Alignments” chapter for a detailed description.
8. RGB Align. Used to align the White Tone. See “White
Tone” in the “Alignments” chapter for a detailed
description.
9. ISP Mode. Can be used to switch the television to “In
System Programming” mode (ISP), for software uploading
via ComPair. Read paragraph “Service Tools” - >
“ComPair”.
Note: When this mode is selected, the TV will be blocked.
Select ISP mode “Off” the TV will be back to normal TV mode.
How to Navigate
•In the SAM menu, select menu items with the MENU UP/
DOWN keys on the remote control transmitter. The
selected item will be indicated.
•With the MENU LEFT/RIGHT keys, it is possible to:
– Activate the selected menu item.
– Change the value of the selected menu item.
– Activate the selected sub menu.
•When you press the MENU button twice while in top level
SAM, the set will switch to the normal user menu (with the
SAM mode still active in the background). To return to the
SAM menu press the MENU button twice.
How to Store SAM Settings
To store the settings changed in SAM mode (except the
OPTIONS settings), leave the top level SAM menu by using the
POWER button on the remote control transmitter or the
television set.
How to Exit
Switch the set to STANDBY by pressing the mains button on
the remote control transmitter or the television set.
Note:
•When the TV is switched “off” by a power interrupt while in
SAM, the TV will show up in “normal operation mode” as
soon as the power is supplied again. The error buffer will
not be cleared.
•In case the set is in Factory mode by accident (with “F”
displayed on screen), by pressing and hold “VOL-” and
“CH-” together should leave Factory mode.
5.2.4Customer Service Mode (CSM)
Purpose
The Customer Service Mode shows error codes and
information on the TV’s operation settings. A call centre can
instruct the customer (by telephone) to enter CSM in order to
identify the status of the set. This helps them to diagnose
problems and failures in the TV before making a service call.
The CSM is a read-only mode; therefore, modifications are not
possible in this mode.
Menu explanation:
1. AAAABCD-X.YY. See paragraph “Service Modes” ->
“General” -> “Software Identification, Version, and Cluster”
for the SW name definition. WT - X.Y. Weltrend standby
microprocessor Software Identification and Version.
2. SAM. Indication of the Service Alignment Mode.
3. ERR (ERR or buffer). Shows all errors detected since the
last time the buffer was erased. Five errors possible.
4. OP (Option Bytes). Used to read-out the option bytes. See
“Options” in the Alignments section for a detailed
description. Seven codes are possible.
Specifications
•Ignore “Service unfriendly modes”.
•Line number for every line (to make CSM language
independent).
•Set the screen mode to full screen (all contents on screen
are viewable).
•After leaving the Customer Service Mode, the original
settings are restored.
•Possibility to use “CH+” or “CH-” for channel surfing, or
enter the specific channel number on the RC.
EN 14LC8.1E LB5.
6
4
Service Modes, Error Codes, and Fault Finding
How to Activate
To activate CSM, press the following key sequence on the
remote control transmitter: “123654” (do not allow the display
to time out between entries while keying the sequence). Upon
entering the Customer Service Mode, the following screen will
appear:
•Press the MENU button once, or POWER button on the
remote control transmitter.
•Press the POWER button on the television set.
5.3Service Tools
5.3.1ComPair
Introduction
ComPair (Computer Aided Repair) is a Service tool for Philips
Consumer Electronics products and offers the following:
1. ComPair helps you to quickly get an understanding on how
to repair the chassis in a short and effective way.
2. ComPair allows very detailed diagnostics and is therefore
capable of accurately indicating problem areas. You do not
have to know anything about I2C or UART commands
yourself, because ComPair takes care of this.
3. ComPair speeds up the repair time since it can
automatically communicate with the chassis (when the uP
is working) and all repair information is directly available.
4. ComPair features TV software up possibilities.
Specifications
ComPair consists of a Windows based fault finding program
and an interface box between PC and the (defective) product.
The (new) ComPair II interface box is connected to the PC via
an USB cable. For the TV chassis, the ComPair interface box
and the TV communicate via a bi-directional cable via the
service connector(s).
How to Connect
This is described in the ComPair chassis fault finding database.
TO TV
TO
UART SERVICE
CONNECTOR
I2C SERVICE
CONNECTOR
TO
TO
UART SERVICE
CONNECTOR
Figure 5-4 CSM menu -2- (example)
Menu Explanation
1. MODEL. Type number, e.g. 32PFL5403/12. (*)
2. PROD S/N. Product serial no., e.g. AG1A0831123456. (*)
3. SW ID. Software cluster and version is displayed.
4. OP. Option code information.
5. CODES. Error buffer contents.
6. SSB. Indication of the SSB factory ID (= 12nc). (*)
7. NVM. The NVM software version no.
8. DISPLAY. Indication of the display ID (=12 nc).
9. TUNER. Indicates the tuner signal condition: “Weak” when
signal falls below threshold value, “Medium” when signal is
at mid-range, and “Strong” when signal falls above
threshold value.
10. SYSTEM. Gives information about the video system of the
selected transmitter (PAL/SECAM/NTSC).
11. SOUND. Gives information about the audio system of the
selected transmitter (MONO/STEREO/NICAM).
12. HDAU. HDMI audio stream detection. “YES” means audio
stream detected. “NO” means no audio stream present.
Only displayed when HDMI source is selected.
13. FORMAT. Gives information about the video format of the
selected transmitter (480i/480p/720p/1080i).
14. Reserved.
15. Reserved.
16. Reserved.
17. Reserved.
(*) If an NVM IC is replaced or initialised, the Model Number,
Serial Number, and SSB Code Number must be re-written to
the NVM. ComPair will foresee in a possibility to do this.
ComPair II
RC in
Optional
Switch
PowerModeLink/
Activity
HDMI
2
I
C only
RC out
Multi
function
2
C
I
PC
ComPair II Developed by Philips Brugge
Optional power
5V DC
RS232 /UART
E_06532_036.eps
150208
Figure 5-5 ComPair II interface connection
Caution: It is compulsory to connect the TV to the PC as
shown in the picture above (with the ComPair interface in
between), as the ComPair interface acts as a level shifter. If
one connects the TV directly to the PC (via UART), ICs will be
blown!
How to Exit
To exit CSM, use one of the following methods:
Service Modes, Error Codes, and Fault Finding
EN 15LC8.1E LB5.
How to Order
ComPair II order codes:
•ComPair II interface: 3122 785 91020.
•The latest ComPair software can be found on the Philips
Service website.
•ComPair UART interface cable: 3138 188 75051 (to be
used for upgrading the Main software).
In the unlikely event that the Standby software should be
upgraded, you will be informed via the appropriate channels
(Philips Service website). To upgrade:
•Remove backcover of set.
•Use ComPair I
•Use ComPair I
2
C interface cable: 3122 785 90004.
2
C adapter cable: 3139 131 03791.
Note: If you encounter any problems, contact your local
support desk.
5.3.2LVDS Tool
Support of the LVDS Tool has been discontinued.
5.4Error Codes
5.4.1Introduction
Error codes are required to indicate failures in the TV set. In
principle a unique error code is available for every:
•Activated protection.
•Failing I
•General I
The last errors, stored in the NVM, are shown in the Service
menu’s. This is called the error buffer.
The error code buffer contains all errors detected since the last
time the buffer was erased. The buffer is written from left to
right. When an error occurs that is not yet in the error code
buffer, it is displayed at the left side and all other errors shift one
position to the right.
An error will be added to the buffer if this error differs from any
error in the buffer. The last found error is displayed on the left.
An error with a designated error code may never lead to a
deadlock situation. This means that it must always be
diagnosable (e.g. error buffer via OSD or blinking LED
procedure, ComPair to read from the NVM).
In case a failure identified by an error code automatically
results in other error codes (cause and effect), only the error
code of the MAIN failure is displayed.
Example: In case of a failure of the I
code for a “General I
displayed. The error code for the single devices (EFFECT) is
not displayed. All error codes are stored in the same error
buffer (TV’s NVM) except when the NVM itself is defective.
2
C device.
2
C error.
2
2
C failure” and “Protection errors” is
C bus (CAUSE), the error
5.4.3Error 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).
5.4.2How to Read the Error Buffer
You can read the error buffer in 2 ways:
• On screen via the SAM/CSM (if you have a picture).
Example:
– ERROR: 0 0 0 0 0: No errors detected
– ERROR: 6 0 0 0 0: Error code 6 is the last and only
detected error
– ERROR: 9 6 0 0 0: Error code 6 was detected first and
error code 9 is the last detected (newest) error
• Via the blinking LED procedure (when you have no
picture). See “The Blinking LED Procedure”.
• Via ComPair.
EN 16LC8.1E LB5.
Service Modes, Error Codes, and Fault Finding
Table 5-1 Error code overview
Error code DescriptionItem no. Remarks
1DC Protection of speakers7C011) TV in protection mode
2+12V protection error1) TV in protection mode
2
3I
4General I2C error7C011) TV turn on without Picture & Sound output from speaker
6I
7I
8I
C Standby uP73031) TV turn on with picture, but without Sound output from speaker
2
C error while communicating with the NVM73021) TV turn on after 3 seconds in Standby mode.
2
C error while communicating with the Tuner. 11041) TV turn on after 3 seconds in Standby mode.
2
C error while communicating with the IF
Demodulator.
2) Red LED blinking 1 time (Error 1)
*Error 1 logged in SAM and CSM mode
2) Red LED blinking 2 times (Error 2)
*No error buffer logged in SAM and CSM mode (protect time very short)
2) Red LED blinking 3 times & 4 times (Error 3 & 4)
*No communication between LOCTOP and WT
*First check WT and Second check LOCTOP generical I
*Error 3 logged in SAM and CSM mode
2) Red LED blinking 3 times & 4 times (Error 3 & 4)
*No communication between LOCTOP and WT
*First check WT and second check LOCTOP generical I2C
*No error buffer logged in SAM and CSM mode
2) Power on TV set (RC) again (wait until TV turn on with blud screen displayed)
3) Input RC sequence (062596 + menu)
4) White LED blink 6 times (Error 6)
*No error buffer logged in SAM and CSM mode
2) Power on TV set (RC) again. TV with snow (no video) displayed.
3) Input RC sequence (062596 + menu)
4) White LED blink 7 times (Error 7)
*Error 7 logged in SAM and CSM mode
74011) TV turn on after 3 seconds in Standby mode
2) Power on TV set (RC again). (wait for 45 seconds, until the system completed the power on state check)
3) Input RC sequence (062596 + menu)
4) White LED blink 8 times (Error 8)
*Error 8 logged in SAM and CSM mode
2
C
Notes
1. Some of the error codes reported are depending on the
option code configurations.
2. This error means: no I
particular I
2
C bus. Possible causes: SCL/SDA shorted to
2
C device is responding to the
GND, SCL shorted to SDA, or SCL/SDA open (at uP pin).
The internal bus of the NXP (Loctop) platform should not
cause the entire system to halt as such an error can be
reported.
5.4.4How to Clear the Error Buffer
The error code buffer is cleared in the following cases:
• By using the CLEAR command in the SAM menu:
– To enter SAM, press the following key sequence on the
remote control transmitter: “062596” directly followed
by the OSD/STATUS/INFO/i+ button (do not allow the
display to time out between entries while keying the
sequence).
– Make sure the menu item CLEAR is selected. Use the
MENU UP/DOWN buttons, if necessary.
– Press the MENU RIGHT button to clear the error
buffer. Press the right button twice (1st is to select the
text “Yes“ on the right side menu and the 2nd press is
to clear the error buffer in NVM the text “CLEARED” will
appear).
•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.
1.5 seconds in which the LED is “off”. Then this sequence is
repeated.
Example (1): error code 4 will result in four times the sequence
LED “on” for 0.25 seconds / LED “off” for 0.25 seconds. After
this sequence, the LED will be “off” for 1.5 seconds. Any RC5
command terminates the sequence. Error code LED blinking is
in red / White colour (refer to Error codes overview).
Example (2): the content of the error buffer is “1 2 9 6 0 0”
After entering SDM, the following occurs:
•1 long blinks 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 blinks of 1.5 seconds to finish the sequence,
•The sequence starts again with 12 short blinks.
5.6Software Upgrading
In this chassis, the following SW “stacks” is used:
•TV main SW (processor and processor NVM).
5.6.1TV Main SW Upgrade
For instructions on how to upgrade the TV Main software, refer
to ComPair.
5.6.2Service SSB
5.5The Blinking LED Procedure
5.5.1Introduction
The software is capable of identifying different kinds of errors.
Because it is possible that more than one error can occur over
time, an error buffer is available, which is capable of storing the
last five errors that occurred. This is useful if the OSD is not
working properly.
Errors can also be displayed by the blinking LED procedure.
The method is to repeatedly let the front LED pulse with as
many pulses as the error code number, followed by a period of
It should be noted that in this chassis the HDCP-key is
embedded in the main processor. Therefore there is no need
for a separate Service-SSB.
Service Modes, Error Codes, and Fault Finding
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.
5.7.1Load Default NVM Values
It is possible to download default values automatically into the
NVM in case a blank NVM is placed or when the NVM first 20
address contents are “FF”. After the default values are
downloaded, it is possible to start-up and to start aligning the
TV set.
Alternative method:
It is also possible to upload the default values to the NVM with
ComPair in case the SW is changed, the NVM is replaced with
a new (empty) one, or when the NVM content is corrupted.
After replacing an EEPROM (or with a defective/no EEPROM ,
default settings should be used to enable the set to start-up and
allow the Service Default Mode and Service Alignment Mode to
be accessed.
5.7.2Start-up/Shut-down Flowcharts
EN 17LC8.1E LB5.
On the next pages you will find start-up and shut-down
flowcharts, followed by a trouble shooting flowchart, which
might be helpful during fault finding.
Please note that some events are only related to PDP sets, and
therefore not applicable to this LCD chassis.
EN 18LC8.1E LB5.
Service Modes, Error Codes, and Fault Finding
AC ON
3V3STBY Available
Weltrend Powered by
3V3_STBY, STANDBY=HIGH
Power_ON_OFF=Low initialize
GPIO pins of Weltrend
Enable Audio mute
STANDBY=Low
Wait for 100ms
Wait for 100ms
Time out = 200ms
Weltrend to go
to Standby
NO
Weltrend reset the LOCTOP
CPU_RST=HIGH
NO
Enable Power Down
Enable DC_PROT INT
Initialize tuner, SMICL,
HDMI_MUX_RST
LCD_POWER_ON=HIGH
Is Power Down
=high?
YES
Wait for 300ms
LOCTOP read the NVM
Last status on?
YES
Wait for 20 ms
Switch ON LVDSSignal
Wait for 1000ms
Init. Warm Component
BL_ON_OFF=HIGH
*BL_ADJ KEEP 100% for
3000ms before dimming
Blank picture
Picture Mode setup & Detection
UnBlank Picture &
Unmute Audio
END
Figure 5-6 Start-up flowchart
I_18170_034.eps
310708
Service Modes, Error Codes, and Fault Finding
Start
Mute Audio
ANTI_PLOP=LOW
MUTEn=HIGH
BL_ON_OFF=LOW
EN 19LC8.1E LB5.
Note:
Total wait time 232ms iso 320ms
Audio is mute continuously -->
Wait 300ms
Switch OFF LVDS
Wait 20ms
LCD_PWR_ON=LOW
WP for NVM
LOCTOP
Enable Audio mute
Port assignment in STANDBY
( Weltrend)
STANDBY=HIGH
Disable Audio Mute?
END
I_18170_035.eps
310708
Figure 5-7 Stand-by flowchart
EN 20LC8.1E LB5.
Service Modes, Error Codes, and Fault Finding
Start
END
NO
POWER_DOWN=LOW
for 5 times ?
YES
Mute Audio & Video
WP for NVM
LOCTOP
STANDBY=HIGH
Wait 5000ms
Re-start:Start up
END
Figure 5-8 Power Down flowchart
I_18170_037.eps
310708
Service Modes, Error Codes, and Fault Finding
Start
EN 21LC8.1E LB5.
END
NO
DC_PROT=Low
for 3seconds?
YES
Mute Audio & Video
WP for NVM
STANDBY=HIGH
END
I_18170_036.eps
310708
Figure 5-9 DC_PROT flowchart
EN 22LC8.1E LB5.
Personal Notes:
Service Modes, Error Codes, and Fault Finding
E_06532_012.eps
131004
Block Diagrams, Test Point Overview, and Waveforms
6.Block Diagrams, Test Point Overview, and Waveforms
Wiring Diagram 32" (MG8)
23LC8.1E LB6.
WIRING 32"
INVERTER
KEYBOARD CONTROL
(1007)
E
J1
1. GND
2. KEYBOARD
3. +3V3STBY
4. INTERRUPT
(STYLING MG8)
8P11
14P
LCD DISPLAY
LVD S INPUT
30P
x418
14. PDIM_Select
13. PWM
12. BL_ON_OFF
11. BOOST
10. GND3
9. GND3
8. GND3
7. GND3
6. GND3
5. 24Vinv
8418
4. 24Vinv
3. 24Vinv
2. 24Vinv
1. 24Vinv
X001
2. L
1. N
MAIN POWER SUPPLY
(1005)
8001
INLET
X416
1. 3.3V stby
2. STANDBY
3. GND1
4. GND1
5. GND1
6. +12V
7. +12V
8. +12V
9. +12V (audio)
10. GND2 (audio)
11. -12V (audio)
X419
1. +12V
2. +12V
3. GND1
4. GND1
5. BL_ON_OFF
6. DIM
7. BOOST
8. ANALOG_PWM
(1004)
8R50
8P01
8P02
SSB
(1150)
B
1303
(B03)
9. POWER_ONOFF
8. +5V_SW
7. KEYB
6. LED1
5. +3V3_STBY
4. LED2
3. REMOTE_IN
2. GND
1. N.C.
1R50
(B04C)
1. VDISP
3. VDISP
5. VDISP
7. VDISP
.
.
30. GND
1P02
(B01)
8. GND
7. BL_BOOST
6. BL_ADJUST_PWM
5. BL_ON_OFF_2
4. GND
3. GND
2. +12V_DISP
1. +12V_DISP
1P01
(B01)
11. -12V_AUDIO
10. GNDSND
9. +12V_AUDIO
8. +12V_DISP
7. +12V_DISP
6. +12V_DISP
5. GND
4. GND
3. GND
2. STANDBY
1. +3V3_STBY
1A35
(B05B)
4. ROUT_SP
3. ROU T_SP_GROUND
2. LOUT_SP_GROUND
1. LOUT_SP
1P11
1. GND
2. KEYBOARD
IR LED PANEL
J
(1112)
4. TACT_SWITCH_INT
3. +3V3STBY
1P10
1. LIGHT-SENSOR
2. GND
8A35
8303
+ -
6. LED1
7. KEYBOARD
8. +5V_SW
4. LED2
5. +3V3-STBY
9. TACT_SWITCH_INT
RIGHT SPEAKER
(5211)
3. IR
+ -
LEFT SPEAKER
(5212)
I_18170_015.eps
300708
Block Diagrams, Test Point Overview, and Waveforms
Wiring Diagram 42" (MG8)
24LC8.1E LB6.
WIRING 42"
KEYBOARD CONTROL
(1007)
E
J1
1. GND
2. KEYBOARD
3. +3V3STBY
4. INTERRUPT
(STYLING MG8)
2P3
DANGEROUS
HIGH VOLTAGE
8P11
TO BACK LIGHT
DANGE ROUS
HIGH VOLTAGE
x403
1. HV1
2. N.C.
MAIN POWER SUPPLY
(1005)
DANGEROUS
HIGH VOLTAGE
3. HV 1
x402
1. HV2
2. N.C.
3. HV 2
X416
1. 3.3V stby
2. STANDBY
3. GND1
4. GND1
5. GND1
6. +12V
7. +12V
8. +12V
9. +12V (audio)
10. GND2 (audio)
11. -12V (audio)
X419
1. +12V
2. +12V
3. GND1
4. GND1
5. BL_ON_OFF
6. DIM
7. BOOST
8. ANALOG_PWM
X001
2. L
1. N
LCD DISPLAY
LVD S INPUT
30P
8P01
8P02
(1004)
8R50
SSB
(1150)
B
1303
(B03)
9. POWER_ONOFF
8. +5V_SW
7. KEYB
6. LED1
5. +3V3_STBY
4. LED2
3. REMOTE_IN
2. GND
1. N.C.
1R50
(B04C)
1. VDISP
3. VDISP
5. VDISP
7. VDISP
.
.
30. GND
1P02
(B01)
8. GND
7. BL_BOOST
6. BL_ADJUST_PWM
5. BL_ON_OFF_2
4. GND
3. GND
2. +12V_DISP
1. +12V_DISP
1P01
(B01)
11. -12V_AUDIO
10. GNDSND
9. +12V_AUDIO
8. +12V_DISP
7. +12V_DISP
6. +12V_DISP
5. GND
4. GND
3. GND
2. STANDBY
1. +3V3_STBY
1A35
(B05B)
4. ROUT_SP
3. ROU T_SP_GROUND
2. LOUT_SP_GROUND
1. LOUT_SP
2P3
DANGEROUS
HIGH VOLTAGE
TO BACK LIGHT
1P11
1. GND
2. KEYBOARD
IR LED PANEL
J
(1112)
3. +3V3STBY
4. TACT_SWITCH_INT
1P10
1. LIGHT-SENSOR
2. GND
3. IR
4. LED2
5. +3V3-STBY
6. LED1
7. KEYBOARD
8. +5V_SW
9. TACT_SWITCH_INT
8303
+ -
RIGHT SPEAKER
(5211)
8001
INLET
8A35
+ -
LEFT SPEAKER
(5212)
I_18170_016.eps
300708
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Video
VIDEO
TUNER IF & SAWF
B02
1104
UV1316E
MAIN
TUNER
VST
9
AGC
VTUN
IF_ATV
11
IF1
1
IO - SCART 1
B06B
EXT 1
IO - SCART 2
B06C
EXT 2
B06A
YPBPR & SVHS
SVHS IN
EXT 3
RF_AGC
16
20
SCART1
16
20
SCART2
CVBS
PR
PB
Y
25LC8.1E LB6.
SMIC L
B05A
7401
TDA8890H1
1102
15
2
3
SAW 38M9
1103
1
2
3
SAW 38M9
7109
1504
15
1
7
11
7
11
20
15
21
1E01
1
7
11
15
21
1602
1601
1
5
2
1614
7503
19
16
8
7E01
19
15
8
20
3
4
SC2_Y_CVBS_IN
SVHS_Y_CVBS_IN
VIF1
4
VIF2
4
SIF1
SIF2
5
SAW_SW
SC1_R_IN
SC1_B_IN
SC1_G_IN
SC1_CVBS_IN
SC1_RF_OUT_CVBS
SC1_FBL_IN
SC1_STATUS
SC2_CVBS_MON_OUT
SC2_C_IN
SC2_STATUS
SVHS_C_IN
HD_PR_IN
HD_PB_IN
HD_Y_IN
72
71
68
67
SMIC
79
66
30
28
29
50
53
31
39
44
42
25
24
23
11
12
46
16
17
B04A
TDA154XX
MON_CVBS
PIP_R
PIP_G
PIP_B
TDA889X_HS
TDA889X_VS
MAIN_CVBS_Y
MAIN_C
SC1_FBL_IN
SC1_STATUS
SC2_C_IN
SC2_STATUS
SC2_Y_CVBS_IN
HD_PR_IN
HD_PB_IN
HD_Y_IN
7C01
TDA15471HV
18
15
17
252
253
30
25
24
16
23
26
4
27
11
10
8
ANALOGUE
LOC TOP
LVD S
MEMORY
MISC
189
188
187
186
185
184
183
182
181
180
199
198
201
LVDS CONNECTORS
B04C
DDR FLASH TRAP
B04B
MD(0-15)
MA(0-11)
SPI_SDO
SPI_SDI
SPI_SCK
TXCLKn
TXCLKp
7701
HY5DU281622FTP
DDR
SDRAM
2Mx16x4
7702
M25P80
2
8M
5
FLASH
6
TXAn
TXAp
TXBn
TXBp
TXCn
TXCp
TXDn
TXDp
1R10
1R11
1R12
1R13
1R14
VDISP
TXAn1
TXAp1
TXBn1
TXBp1
TXCn1
TXCp1
TXCLKn1
TXCLKp1
TXDn1
TXDp1
1R50
12
14
18
20
24
26
30
1
3
5
7
2
4
6
8
CONNECTOR
LVDS
B06D
CONNECTOR
HDMI
HDMI
1N01
RX2_A+
1
RX2_A-
1
19
3
RX1_A+
4
RX1_A-
6
RX0_A+
7
RX0_A-
9
182
10
RXC_A+
12
RXC_A-
HDMI_MUX_TX2+
HDMI_MUX_TX2-
HDMI_MUX_TX1+
HDMI_MUX_TX1-
HDMI_MUX_TX0+
HDMI_MUX_TX0-
HDMI_MUX_TXC+
HDMI_MUX_TXC-
7N07
IP4776CZ38
27
30
INTERFACE
33
HDMI
HDMI_MUX_TX2+
HDMI_MUX_TX2-
HDMI_MUX_TX1+
HDMI_MUX_TX1-
HDMI_MUX_TX0+
HDMI_MUX_TX0-
HDMI_MUX_TXC+
HDMI_MUX_TXC-
10
7
4
245
244
241
240
237
236
233
232
HDMI
I_18170_017.eps
300708
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Audio
AUDIO
TUNER IF & SAWF
B02
1104
UV1316E
MAIN
TUNER
IF1
AGC
VST
9
VTUN
IO - SCART 1
B06B
1
7
EXT 1
11
15
16
20
21
SCART1
26LC8.1E LB6.
SMIC L
B05A
7401
TDA8890H1
1102
15
2
4
3
SAW 38M9
1103
IF_ATV
11
1504
RF_AGC
6
2
3
1
SC1_AUDIO_IN_L
SC1_AUDIO_IN_R
SC1_AUDIO_OUT_L
SC1_AUDIO_OUT_R
1
1
2
3
SAW 38M9
7109
4
5
VIF1
VIF2
SIF1
SIF2
SAW_SW
72
71
68
67
SMIC
79
66
52
51
62
61
7
9
10
4
5
B04A
TDA154XX
TUN_SIF
MAIN_L
MAIN_R
TUN_L
TUN_R
7C01
TDA15471HV
53
LOC TOP
37
38
55
56
61
62
71
B05B
AUDIO_LS__L
AUDIO_LS__R
POWER_DOWN
B03
B03
AUDIO CLASS D
7A01
TDA8932T/N1
37
38
MUTEn
CLASS D
POWER
AMPLIFIER
MUTING
CIRCUIT
DC_PROT
ENGAGE
27
22
5
7J42
DC-DETECTION
LOUT_SP
ROUT_SP
1A35
1
2
3
4
Speaker L
Speaker R
B05B
B06C
B06A
B06D
AUDIO CLASS D
IO - SCART 2
EXT 1
16
20
SCART1
YPBPR & SVHS
AUDIO IN
L+R
AUDIO IN
L+R
HDMI
1
182
19
HDMI
CONNECTOR
B06A
SC1_AUDIO_MUTE_L
SC1_AUDIO_MUTE_R
SC2_AUDIO_MUTE_L
SC2_AUDIO_MUTE_R
1504
1
3
7
1
11
6
15
2
21
1602
1615
1N01
1
3
4
6
7
9
10
12
SC2_AUDIO_OUT_L
SC2_AUDIO_OUT_R
SC2_AUDIO_IN_L
SC2_AUDIO_IN_R
SIDE_AUDIO_IN_L
SIDE_AUDIO_IN_R
COMP_AUDIO_IN_L
COMP_AUDIO_IN_R
RX2_A+
RX2_A-
RX1_A+
RX1_A-
RX0_A+
RX0_A-
RXC_A+
RXC_A-
CONTROL
ANTI
PLOP
HDMI_MUX_TX2+
HDMI_MUX_TX2-
HDMI_MUX_TX1+
HDMI_MUX_TX1-
HDMI_MUX_TX0+
HDMI_MUX_TX0-
HDMI_MUX_TXC+
HDMI_MUX_TXC-
ANTI_PLOP
B03
7N07
IP4776CZ38
27
30
INTERFACE
33
41
40
48
45
64
63
35
34
HDMI
68
HDMI_MUX_TX2+
HDMI_MUX_TX2-
HDMI_MUX_TX1+
HDMI_MUX_TX1-
HDMI_MUX_TX0+
HDMI_MUX_TX0-
HDMI_MUX_TXC+
HDMI_MUX_TXC-
10
7
4
245
244
241
240
237
236
233
232
HDMI
YPBPR & SVHS
HP_DETECT
LOUT_HP
ROUT_HP
1603
2
3
6
Headphone
Out 3.5mm
I_18170_018.eps
300708
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Control & Clock Signals
CONTROL & CLOCK SIGNALS
E
KEYBOARD CONTROL
CHANNEL +
CHANNEL -
MENU
VOLUME -
VOLUME +
ON / OFF
J
IR LED PANEL
TAC T _ SWITCH_INT
6P11
+5V_SW
+3V3STBY
+3V3STBY
3P11
3P10
3P16
LED1
WHITE
6P10
LED2
RED
7P14
7P11
7P10
IR
SENSOR
J1
2
4
1P11
2
4
1P10
9
+5V_SW+5V_SW
KEYBOARD
LED1
+3V3STBY+3V3STBY
LED2
IR
88
7
66
55
44
33
22
11
B03
MICROPROCESSOR NVM
1303
9
7
POWER_ONOFF
4313
N.C.N.C.
KEYB
LED1
LED2
REMOTE
7303
WT61P8S
44
MICRO
PROCESSOR
19
24
25
9
27LC8.1E LB6.
B04A
POWER_ONOFF_LOCTOP
KEYB
REMOTE
10
B06D
HDMI
1N01
13
HDMI
CONN.
38
37
6
26
37
4
3
ANTI_PLOP
MUTEn
CPU_RST
DDC_RST_A
1312
12M
+3V3STBY
4314
7304
7N03
B05B
(AUDIO)
B05B
B06D
TDA154XX
B06A
B05B
HDMI_CECHDMI_CEC_A
HP_DETECT
DC_PROT
WT_LOCTOP
BL_BOOST_PWM
BL_ON_OFF
BL_ADJ
7C01
TDA15471HV
75
33
197
195
68
71
194
219
220
215
196
LOC TOP
225
1C01
27M
226
182
183
63
64
214
216
B04B
MD(0-7)
MA(0-19)
SDCLKP
163
162
SDCLKN
SPI_SDI
198
201
SPI_SCK
SPI_SDO
199
200
SPI_CEN
B01
BL_ADJUST_PWM
TxCLKp
TxCLKn
SMIC_CLKP
SMIC_CLKP
HPD_RST_MUX
LCD_PWR_ON
B04C
B04C
B05B
B05B
B06D
B04C
DDR FLASH TRAP
7701
HY5DU281622FTP
DDR
SDRAM
2Mx16x4
45
46
7702
M25P80
5
6
8M
2
FLASH
1
DC/DC +5V & +3V3 & +2V5
& +1V8 & +8V
1P02
6
+3V3_STBY
5
7309
BD45275G
VOUT
2,3
MP_RST
4
43
41
7301
7305
BL_ON_OFF_2
BL_BOOST
STANDBY
5
7
1P02
6
I_18170_019.eps
210708
Block Diagrams, Test Point Overview, and Waveforms
SRP (Service Re ference Protocol) is a softw are too l that creates a list w i th all refer e n c es to signal lines. The list contains
references to the signals w i thin all schemat ics of a PWB. It replaces the text refe r ences currentl y p r inted next t o the signal
names in the schematics. These printed refe rences are created man ually an d are t h e r efore n o t guar an teed to be 100 %
correct. In additio n , in the current crowded schema t ics there is often none or ver y little pl ace for these references.
Some of the PW
B schematics w ill use SRP while others w ill sti ll use the manual refe rences. Either there w ill be an SRP
r e fer ence list for a schematic, or ther e w ill be pr inted r e ferences in the schematic.
1.2. No n - SRP Schematics
There a r e severa l different signals available in a schematic:
1.2.1. Po w e r Supply Lines
All pow er suppl y lines are available in t he suppl y line overview (see chapter 6). I n th e schematics (se e chapter 7) is n o t
indicated w h e r e supplies are coming from or going to.
It is how ever indi cated if a supply is incoming (created elsew h e r e), o r outgoing (cr eat ed or adapt ed in the current sche m atic).
Outgoing Incoming
+5 V +5 V
1.2.2. Normal Signals
For no rmal signals, a schematic r e ference (e. g . B1 4b) is placed next to the signals.
B 14b
si gnal _nam e
1.2.3. Grounds
For no rmal and s pecial grounds (e .g. GN DH OT o r GND3V3 etc.), n o thing is indicate d.
1.3. SRP Schematics
SRP is a tool, w h ich automatically creates a list w i th signal reference s , indicating on which sc hematic t he signals are used.
A reference is cr eated for all signals indicat ed w i th an SRP s y mbol, these s y mbols are:
+5 V +5 V
na m e na m e
na m e na m e
na m e na m e
na m e
Bi-directional lin e (e.g. SDA ) into a w i r e tree.
na m e
Signal line into a w i r e tree, its dir e ction depends on t he circuit (e.g. ingoing for PD P, outgoing for L C D sets).
Remarks:
• When there is a black dot on the "signal dire ction arrow" it is an SRP symbol, so there will be a reference to the signal
name in the SRP list.
• All references to normal grounds (Ground symbols without additi onal text) are not listed in the reference list, this to keep
it concise.
• Signals that are not used in multiple schematics, but only onc e or several times in the same schematic, are included
in the SRP reference list, but only with one reference.
Additional Tip:
When using the PDF service manual file, you can very easily search for signal names and follow the signal over all the
schematics. In Adobe PDF reader:
• Select the signal name you want to sear ch for, with the "Select text" tool.
• Copy and paste the signal name in the "Search PDF" tool.
• Search for all occurrences of the signal name.
• Now you can quickly jump between the different occurrences and follow the signal over all schematics. It is advised to
"zoom in" to e.g. 150% to see clearly, which text is select ed. Then you can zoom out, to get an overview of the complete
schematic.
PS. It is recommended to use at least Adobe PDF (reader) version 6. x, due to better search possibilities in this version.
Power suppl y li ne.
Stand alone signal or sw itching li ne (used as less as possible).
Note: Figures below can deviate slightly from the actual
situation, due to the different set executions.
General: The Service Alignment Mode (SAM) is described in
chapter 5. Menu navigation is done with the CURSOR UP,
DOWN, LEFT or RIGHT keys of the remote control transmitter.
8.1General Alignment Conditions
Perform all electrical adjustments under the following
conditions:
•Connect the set to the mains via an isolation transformer
with low internal resistance.
•Allow the set to warm up for approximately 15 minutes.
•Measure voltages and waveforms in relation to correct
ground (e.g. measure audio signals in relation to
AUDIO_GND).
Caution: It is not allowed to use heatsinks as ground.
• Test probe: Ri > 10 Mohm, Ci < 20 pF.
•Use an isolated trimmer/screwdriver to perform
alignments.
8.2Hardware Alignments
There are no hardware alignments foreseen for this chassis,
but below find an overview of the most important DC voltages
on the SSB. These can be used for checking proper functioning
of the DC/DC converters.
Table 8-1 DC voltages
DescriptionTest Point Specifications (V)Diagram
Min. Typ. Max.
+VTUNFP14303336B01_DC-DC
+12V_AUDIOFP0611.40 12.00 12.60 B01_DC-DC
-12V_AUDIOFP09-11.40 -12.00 -12.60 B01_DC-DC
+12V_DISPFP0411.40 12.00 12.60 B01_DC-DC
+3V3_STBYFP013.20 3.30 3.40 B01_DC-DC
+5V_SWFP054.90 5.16 5.42 B01_DC-DC
+2V5_SWFP182.40 2.50 2.60 B01_DC-DC
+1V8_SWFP031.70 1.80 1.90 B01_DC-DC
+3V3_SW_TDAFP193.10 3.30 3.50 B01_DC-DC
+1V8_SW_ADCFP201.70 1.80 1.90 B01_DC-DC
+3V3_SWFP223.10 3.30 3.50 B01_DC-DC
+8V_SWFP217.60 8.00 8.40 B01_DC-DC
+5V_IFF1334.75 5.00 5.25 B02_Tuner IF & SAWF
+5V_TUNF1114.75 5.00 5.25 B02_Tuner IF & SAWF
+5V_SW_SMICF4024.75 5.00 5.25 B05A_SMIC L
VDDAFA0111.40 12.00 12.60 B05B_Audio - CLASS D
VDDFA0311.40 12.00 12.60 B05B_Audio - CLASS D
VSSAFA02-11.40 -12.00 -12.60 B05B_Audio - CLASS D
VSSFA14-11.40 -12.00 -12.60 B05B_Audio - CLASS D
+5VHDMI_AFN084.75 5.00 5.25 B06B_HDMI
+5VHDMI_BFN134.75 5.00 5.25 B06B_HDMI
+1V8_ANA-MUX FN031.70 1.80 1.90 B06B_HDMI
+1V8_DIG-MUXFN021.70 1.80 1.90 B06B_HDMI
+3V3_ANA-MUX FN743.10 3.30 3.50 B06B_HDMI
8.3Software Alignments
With the software alignments of the Service Alignment Mode
(SAM) the Tuner and RGB settings can be aligned.
To store the data: Use the RC button “Menu” to switch to the
main menu and next, switch to “Stand-by” mode.
8.3.1Tuner Adjustment (RF AGC Take Over Point)
Purpose: To keep the tuner output signal constant as the input
signal amplitude varies.
The LC8.1E LB chassis comes with the UV1316E analogue
tuner. No alignment is necessary, as the AGC alignment is
done automatically (standard value: “15”). However in case of
problems use the following method (use multimeter and RF
generator):
•Apply a 70 dB (1mv) RF signal with a Philips standard
circuit pattern to antenna input.
•Adjust AGC (via SAM menu: TUNER -> AGC), until voltage
on pin 1 is 3.3 +0.5/-1.0 V.
•Store settings and exit SAM.
8.3.2RGB Alignment
In RGB Alignment menu there are three items White Tone,
ADC Gain & Align ADC to perform the colour temperature
alignment for the RF and the input source calibration.
Before alignment, choose “TV MENU” -> “Picture” and set:
•“Brightness” to “50”.
•“Colour” to “50”.
•“Contrast” to “100”.
White Tone Alignment:
•Activate SAM.
•Select “RGB Align.” -> “White Tone” and choose a colour
temperature.
•Use a 100% white screen as input signal and set the
following values:
– All “White point” values initial to “255”.
In case you have a colour analyser:
•Measure with a calibrated (phosphor- independent) colour
analyser (e.g. Minolta CA-210) in the centre of the screen.
Consequently, the measurement needs to be done in a
dark environment.
•Adjust the correct x,y coordinates (while holding one of the
White point registers R, G or B on “256”) by means of
decreasing the value of one or two other white points to the
correct x,y coordinates (see table “White D alignment
values”). Tolerance: dx: ± 0.004, dy: ± 0.004.
•Repeat this step for the other colour Temperatures that
need to be aligned.
•When finished return to the SAM root menu and press
STANDBY on the RC to store the aligned values to the
NVM.
Table 8-2 White D alignment values
ValueCool (11000 K)Normal (9000 K)Warm (6500 K)
x0.2780.2890.314
y0.2780.2910.319
If you do not have a colour analyser, you can use the default
values. This is the next best solution. The default values are
average values coming from production (statistics).
•Set the RED, GREEN and BLUE default values per
temperature according to the values in the “Tint settings”
table.
•When finished return to the SAM root menu and press
STANDBY on the RC to store the aligned values to the
NVM.
EN 56LC8.1E LB8.
Alignments
Table 8-3 Tint settings 32"
Colour Temp.RGB
Cool120126128
Normal128128128
Warm128120126
Table 8-4 Tint settings 42"
Colour Temp.RGB
Cool127120124
Normal127115114
Warm12711096
ADC Alignment (external source)
When the grey scale displayed is not uniformity, use the
following alignment method. This is to calibrate the input
source to perform better output display.
Two Input Source need to be calibrated:
1. RGB (via Scart 1)
2. YPbPr (Component Input)
Instructions:
•Apply a standard 100% colour bar to input source (1) & (2).
•Activate SAM.
•Cursor down to item “RGB Align” and select “Align ADC”.
•Select “Yes” with the Left Key to start calibration.
•Power Off the set and calibrated values will be stored.
Note: The “In Progress” message indicates calibration in
progress.
The “Done” message will be displayed when completed
successfully.
8.4Option Settings
8.4.1Introduction
digital diagnosis possible, the microprocessor has to know
which ICs to address. The presence/absence of these specific
ICs (or functions) is made known by the option codes.
Notes:
•After changing the option(s), save them with the STORE
command.
•The new option setting becomes active after the TV is
switched “off” and “on” again with the mains switch (the
EAROM is then read again).
8.4.2How To Set Option Codes
When the NVM is replaced, all options will require resetting. To
be certain that the factory settings are reproduced exactly, you
must set all option numbers. You can find the correct option
numbers in table “Option Codes OP1...OP7” below.
How to Change Options Codes
An option code (or “option byte”) represents eight different
options (bits). When you change these numbers directly, you
can set all options very quickly. All options are controlled via
seven option bytes (OP1... OP7).
Activate SAM and select “Options”. Now you can select the
option byte (OP1 to OP7) with the CURSOR UP/ DOWN keys,
and enter the new 3 digit (decimal) value. For the correct
factory default settings, see the next table “Option codes
OP1...OP7“. For more detailed information, see the second
table “Option codes at bit level“. If an option is set (value “1”), it
represents a certain decimal value.
When all the correct options (bits) are set, the sum of the
decimal values of each Option Byte (OP) will give the option
code.
2
The microprocessor communicates with a large number of I
C
ICs in the set. To ensure good communication and to make
Below find an overview of the Option Codes on bit level.
Alignments
Table 8-6 Option codes at bit level (OP1-OP7)
Option Byte & Bit Dec. Value Option NameDescription
Byte OP1
Bit 7 (MSB)128OPC_BBEON = BBE is available
Bit 664RESERVEDRESERVED
Bit 532RESERVEDRESERVED
Bit 416FSRV_OPC_OPTION_CHECK_14ON = NVM Integrity check enable
Bit 38OPC_UK_PNPON = UK PNP is available
Bit 24OPC_VIRGIN_MODEON = Virgin Mode (PNP) is available
Bit 12OPC_ACION = ACI is available
Bit 0 (LSB)1OPC_ATSON = ATS is available
Byte OP2
Bit 7 (MSB)128RESERVEDRESERVED
Bit 664RESERVEDRESERVED
Bit 532RESERVEDRESERVED
Bit 416RESERVEDRESERVED
Bit 38RESERVEDRESERVED
Bit 24RESERVEDRESERVED
Bit 12OPC_WSSBON = WSS is available
Bit 0 (LSB)1RESERVEDRESERVED
Byte OP3
Bit 7 (MSB)128RESERVEDRESERVED
Bit 664RESERVEDRESERVED
Bit 532RESERVEDRESERVED
Bit 416RESERVEDRESERVED
Bit 38RESERVEDRESERVED
Bit 24RESERVEDRESERVED
Bit 12RESERVEDRESERVED
Bit 0 (LSB)1RESERVEDRESERVED
Byte OP4
Bit 7 (MSB)128OPC_HDMI2 Must be set to 1, no optional control
Bit 664OPC_HDMI1 Must be set to 1, no optional control
Bit 532OPC_VGA Must be set to 1, no optional control
Bit 416OPC_SVHS3Must be set to 1, no optional control
Bit 38OPC_AV3Must be set to 1, no optional control
Bit 24OPC_CVIMust be set to 1, no optional control
Bit 12OPC_SVHS2Must be set to 1, no optional control
Bit 0 (LSB)1OPC_AV2Must be set to 1, no optional control
Byte OP5
Bit 7 (MSB)128RESERVEDRESERVED
Bit 664RESERVEDRESERVED
Bit 532RESERVEDRESERVED
Bit 416RESERVEDRESERVED
Bit 38OPC_SYS_RECVRYON = System Recovery is available
Bit 24RESERVEDRESERVED
Bit 12RESERVEDRESERVED
Bit 0 (LSB)1RESERVEDRESERVED
Byte OP6
Bit 7 (MSB)128RESERVEDRESERVED
Bit 664RESERVEDRESERVED
Bit 532RESERVEDRESERVED
Bit 416RESERVEDRESERVED
Bit 38RESERVEDRESERVED
Bit 24RESERVEDRESERVED
Bit 12RESERVEDRESERVED
Bit 0 (LSB)1RESERVEDRESERVED
Byte OP7
Bit 7 (MSB)128RESERVEDRESERVED
Bit 664FSRV_PCE_OPTION_OP76ON= Smart Clock enable
Bit 532RESERVEDRESERVED
Bit 416RESERVEDRESERVED
Bit 38RESERVEDRESERVED
Bit 24RESERVEDRESERVED
Bit 12Cabinet Profile_10 = LC08EE_37_42inch_MG8
Bit 0 (LSB)1Cabinet Profile_0
OFF = BBE is not available
OFF = NVM Integrity check disable
OFF = UK PNP is not available
OFF = Virgin Mode (PNP) is not available
OFF = ACI is not available
OFF = ATS is not available
OFF = WSS is not available
OFF = System Recovery is not available
OFF= Smart Clock disable
1 = LC08EE_32inch_MG8
2 = Reserved
EN 57LC8.1E LB8.
EN 58LC8.1E LB9.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.Circuit Descriptions, Abbreviation List, and IC Data Sheets
Index of this chapter:
9.1 Introduction
9.2 LCD Power Supply
9.3 DC/DC converters
9.4 Front-End
9.5 Video/Audio Processing
9.6 HDMI
9.7 Abbreviation List
9.8 IC Data Sheets
Notes:
•Only new circuits (circuits that are not published recently)
are described.
•Figures can deviate slightly from the actual situation, due
to different set executions.
•For a good understanding of the following circuit
descriptions, please use the Wiring, Block (chapter 6) and
Circuit Diagrams (chapter 7). Where necessary, you will
find a separate drawing for clarification.
Tuner
CVBS
Ext 1 - Scart 1
L
R
SAW
SAW
SMIC
TDA8890
9.1Introduction
The LC8.1E LB chassis (development name “LC08EE”) is a
new chassis using an NXP “LOC-TOP” chipset. It covers
screen sizes of 32" and 42" with the “MG8” styling.
Main key components are:
•NXP TDA1547 “LOC-TOP” LCD TV controller
•NXP TDA8890 “LOC-TOP” Versatile Video processor
•Weltrend WT61P8S microprocessor
•NXP TDA8932 Class-D Audio processor
•UV1316E tuner.
Refer to figure “LC08EE Architecture” for details.
12V
DC-DC
1x NCP5422
4xLD1117
5V
3V3
2V5
1V8
Y
VGA
HDMI 1
HDMI 2
L
/
R
LVDS
CLASS D
L
Pb
Pr
R
TDA8933BT
LOC TOP
HDMI
MUX
TDA15471/15421
DDR1
250MHz
16MB
CEC
SPI
Flash
1MB
I2C
+/-12V
Standby uP
WT61P7/8
3V3 stby
IR, LED, LC
SPDIF
HP
I_18170_038.eps
310708
Figure 9-1 LC08EE Architecture
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9R 9
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9.1.1SSB Cell Layout
EN 59LC8.1E LB9.
DC - DC CONVERSION
DC - DC CONVERSION
DDR
AUDIO CLASS - D
STAND BY
uP
TDA1547
CONTROLLER
TUNER
ANALOGUE I/O
TDA8890
SMIC
ANALOGUE I/O
9.2LCD Power Supply
The Power Supply Unit (PSU) in this chassis is a Bobitrans
Power Solutions buy-in unit and is a black-box for Service.
When defective, a new panel must be ordered and the
defective panel must be returned for repair, unless the main
fuse of the unit is broken. Always replace the fuse with one with
the correct specifications! This part is commonly available in
the regular market.
Different PSUs are used in this chassis:
•32" sets use a “Bobitrans” PLCD170PS09 B unit.
•42" sets use an “Bobitrans” LIPS250PS02 unit.
9.2.132" sets
P a nel
X413
X418
BPS
P S U
12NC: 3122 427 24851
X001
X416
X419
1P02
LC 08EE SSB
1P01
Figure 9-2 SSB top view
I_18170_039.eps
310708
Figure 9-4 32” PSU block diagram
I_18170_041.eps
310708
CN01
Panel
(Left)
A C Inlet
Vin_AC: 196V ~ 264V
CN04
Panel
(Right)
I_18170_040.eps
310708
Figure 9-3 32” PSU connectivity
EN 60LC8.1E LB9.
,QYHUWHUOHVV
3DQHO
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Circuit Descriptions, Abbreviation List, and IC Data Sheets
Pin14
TO INVERTER (Left)
Pin1
9.2.242" sets
TO INVERTER (Right)
GND3
GND3
GND3
GND3
GND3
Pin12
NC
NC
+12V (audio)
GND2 (audio)
-12V (audio)
BL_ON_OFF
Analog/PWM dimming
X418
Pin1
X413
24Vinv
PDIM_Select
PWM
On/Off
Vbri
GND3
GND3
GND3
GND3
GND3
24Vinv
24Vinv
24Vinv
24Vinv
24Vinv
X001
LN
24Vinv
24Vinv
24Vinv
24Vinv
AC INPUT
Figure 9-5 32” PSU interface diagram
X402
X403
X416
X419
12NC: 3122 427 25041
X001
Vin_AC: 196V ~ 264V
1P02
1P01
Figure 9-6 42” PSU connectivity
3V3 stdby
Standby
GND1
GND1
GND1
+12V
+12V
+12V
+12V
+12V
GND1
GND1
DIM
Boost
X416
X419
Pin1
Pin11
Pin1
Pin8
I_18170_042.eps
I_18170_043.eps
310708
310708
TO SSB
TO PANEL
LeftRight
X402
X403
-12V (audio)
GND2 (audio)
+12V (audio)
+12V
+12V
+12V
GND1
GND1
GND1
Standby
3V3 stdby
Analog/PWM dimming
Boost
DIM
BL_ON_OFF
GND1
GND1
+12V
+12V
X416
X419
Pin11
Pin1
Pin8
Pin1
X001
LN
AC INPUT
Figure 9-8 42” PSU interface diagram
9.3DC/DC converters
On-board DC-DC converters convert the +12 V coming from
the PSU and deliver the following voltages:
•+3.3 V(+3V3_STBY)
•+1.8 V(+1V8_SW)
•+5 V (+5V_SW)
•+3.3 V (+3V3_SW)
•+2.5 V (+2V5_SW)
•+3.3 V (+3V3_SW_TDA)
•+1.8 V (+1V8_SW_ADC)
•+33 V (+VTUN_33V)
•+8 V (+8V_SW)
The following diagram shows the power supply architecture of
the SSB:
TO SSB
I_18170_045.eps
310708
Figure 9-7 42” PSU block diagram
I_18170_044.eps
310708
Figure 9-9 Power Supply Architecture
9.4Front-End
This chassis uses the UV1316E analogue tuner.
I_18170_046.eps
310708
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Tuner IF Diagram
tuner
Supply
+5V/+33V
Figure 9-10 Tuner IF diagram
While receiving analogue signals, the signal coming from the
tuner is fed to the IF demodulator (through the SAW filters) and
then passed to the NXP TDA8890H1 LOC-TOP Front-End
Signal Processor.
Video
SAW filter
Audio
SAW filter
RFAGC
IIC
IF demodulator
RF
AGC_analog
IIC_analog
CVBS
nd
2
SIF
I_17820_035.eps
130308
EN 61LC8.1E LB9.
•Switchable group delay correction and sound trap (with
switchable centre frequency) for the demodulated CVBS
signal
•Separate SIF (Sound IF) input for single reference QSS
(Quasi Split Sound) demodulation
•AM demodulator without extra reference circuit
•SSIF output is available for interfacing with a stereo sound
decoder
•Audio switch circuit with 7 base band stereo sound inputs
•Audio switch circuit 3 stereo outputs
•Video switch with 4 external CVBS inputs
•Video switch with 3 CVBS outputs
•YPRPB outputs (YOUTPIP/PBOUTPIP/PROUTPIP), for
back-end PIP processing
•Linear RGB/YPBPR input with fast insertion
•Video identification circuit
•One reference (24.576 MHz) clock required
•Indication of the Signal-to-Noise ratio of the incoming
CVBS signal
•Horizontal synchronization with alignment-free horizontal
oscillator
•Vertical count-down circuit to generate vertical timing
signals.
9.4.1Video IF Amplifier
The IF-filter is integrated in a SAW (Surface Acoustic Wave)
filter. One for filtering IF-video (item 1102) and one for IF-audio
(item 1103). The video IF filter can be switched to another
standard, what makes it suitable for applications in multistandard platforms (implemented in non-EU applications).
If implemented, switching is done by the microcontroller via
SAW_SW. In table “SAW filter switching” is explained how to
address the different system standards.
Table 9-1 SAW filter switching
RegionSAW_SWSystem
AP1B/G, D/K, I
0M/N
The pin assignment of all analogue tuners is equal and can be
found in table “Pin assignment analogue tuners”.
Table 9-2 Pin assignment analogue tuners
Pin number DescriptionDC voltage (V)
1RF AGC voltage3.3 - 4.5 (weak or no signal)
2n.c.
3I
2
C-bus address select0
< 3.3 (strong signal)
4SCL0 to 3.3
5SDA0 to 3.3
6n.c.
7supply voltage5 ±0.25
8n.c.
9fixed tuning voltage33
10n.c.
11TV IF output
9.5Video/Audio Processing
The video and audio processing is handled by the NXP “LOCTOP” TDA8890H1 front-end signal processor in cooperation
with the NXP “LOC-TOP” TDA15471HV video/audio
processor. For the applications, see figures “Block diagram
video processing” and “Block diagram audio processing”.
The TDA15471HV features:
•Graphics and Video Input Ports
•HDMI receiver
•3D Video Decoder
•Field-proven Multi-standard TV sound decoder
•Audio processor
•Analog sound interface
•Digital audio input and output interface
•High Quality Video Processing
•Pip and PoP
•High Quality Video Scaling Engine
•Embedded OSD and VBI Controller
•Embedded DDR/SDRAM controller
•Programmable Digital Output for LCD
•Powerful 32-bit RISC CPU.
9.5.1Video/Audio Application
“Block diagram video processing” and “Block diagram audio
processing” shows the video/audio signal flow.
•Multi-standard vision IF circuit with alignment-free PLL
demodulator
•Internal (switchable) time-constant for the IF-AGC circuit
EN 62LC8.1E LB9.
Tuner
1104
Ext 1 - Scart 1
Ext 2 - Scart 2
SLR
CVB
=
HDMI 1
HDMI 2
L
Pb
Pr
HDMI
MUX
Y
SAW-SW
1103
SAW
SIF1,2
SC1_AUDIO_IN
L,R
SC1_AUDIO_OUT
L,R
SC2_AUDIO_INL,R
SC2_AUDIO_OUT
L,R
SIDE_AUDIO_IN L,R
SC1_AUDIO_MUTE L,R
COMP_A UDIO_IN L,R
SC2_AUDIO_MUTE L,R
R
7A52
7A61,62
7A56,57
TDA15471/15421
ANTI_PLOP
Figure 9-12 Block diagram audio processing
9.5.2Audio Amplifier
The audio amplifier is an integrated class-D amplifier
(TDA8932T, item 7A01). It combines a good performance with
a high efficiency, resulting in a big reduction in heat generation.
Principle
SIFIN1,SIFIN
267,68
IN4L,IN4R
52,51
OUTS1L, OUTS1R
62,61
IN2L, IN2R
48,45
OUTS2L ,OUTS2R
41,40
IN3L, IN3R
64,63
IN7L
IN7R
35,34
7
SSIFOUT
TUN_SIF
53
SIFAI N
LOC TOP
ANTI_PLOP
+V
79
SWO
SMIC
TDA8890
9,10
4,5
DSPINL, DSPINR
MAINOUTL, MAINOUTR
MAIN_L,R
HP_DETECT
TUN_L,R
68
7A06
VCLK
7A07
DC_PROT
VD5
55,56
71
POWER_DOWN
AUDIO_LS_L,R
7A05
7A60
7A53
Standby uP
WT61P8S
37,38
AIN0L,AIN0R
AOUT0L AOUT0R
AOUT1L
AOUT1R
61,62
Circuit Descriptions, Abbreviation List, and IC Data Sheets
DC-protection
A DC-detection circuit is foreseen to protect the speakers. It is
built around three transistors (items 7A05 to 7A07) and
generates a protection signal (DC_PROT) to the
microprocessor in case of a DC failure in the Class D
amplifiers.
9.6HDMI
LOUT,ROUT_SP
CLASS D
TDA8932BT
ENGAGE
MUTEn
HP
LOUT,ROUT_HP
STANDBYn
I_18170_048.eps
310708
9.6.1Introduction
Note: Text below is an excerpt from the ”HDMI Specification”
that is issued by the HDMI founders (see http://www.hdmi.org).
The High-Definition Multimedia Interface is developed for
transmitting digital signals from audiovisual sources to
television sets, projectors and other video displays.
HDMI can carry high quality multi-channel audio data and can
carry all standard and high-definition consumer electronics
video formats. Content protection technology is available.
HDMI can also carry control and status information in both
directions.
HDMI is backward compatible with DVI (1.0). Compared with
DVI, HDMI offers extra:
•YUV 4:4:4 (3 × 8-bit) or 4:2:2 (up to 2 × 12-bit), where DVI
offers only RGB 4:4:4 (3 × 8 bit).
•Digital audio in CD quality (16-bit, 32/44.1/48 kHz), higher
quality available (8 channels, 192 kHz).
•Remote control via CEC bus (Consumer Electronics
Control): allows user to control all HDMI devices with the
TV's remote control and menus.
•Smaller connector (SCART successor).
•Less cables: e.g. from 10 audio/9 video cables to 3 HDMI
cables.
-V
G_16860_080.eps
020207
Figure 9-13 Principle Class-D Amplifier
The Class D amplifier works by varying the duty cycle of a
Pulse Width Modulated (PWM) signal.
By comparing the input voltage to a triangle wave, the amplifier
increases duty cycle to increase output voltage, and decreases
duty cycle to decrease output voltage.
The output transistors of a Class D amplifier switch from 'full off'
to 'full on' (saturated) and then back again, spending very little
time in the linear region in between. Therefore, very little power
is lost to heat. If the transistors have a low 'on' resistance
(RDS(ON)), little voltage is dropped across them, further
reducing losses.
A Low Pass Filter at the output passes only the average of the
output wave, which is an amplified version of the input signal.
In order to keep the distortion low, negative feedback is
applied.
The advantage of Class D is increased efficiency (= less heat
dissipation). Class D amplifiers can drive the same output
power as a Class AB amplifier using less supply current.
The disadvantage is the large output filter. The main reason
for this filter is that the switching waveform results in maximum
current flow. This causes more loss in the load, which causes
lower efficiency. An LC filter with a cut-off frequency less than
the Class D switching frequency, allows the switching current
to flow through the filter instead of the load, thus reducing the
overall loss and increasing the efficiency.
9.6.2Implementation
The HDMI implementation is built around the IP4776CZ38
HDMI Interface for host-interface protection, which features:
•Integrated high-level ESD protection, level shifting and
backdrive protection
•All TMDS lines with integrated rail-to-rail clamping diodes
with downstream ESD protection of ±8 kV according to IEC
61000-4-2, level 4 standard
•Bidirectional level shifting N-channel FETs provided for
DDC clock and data channels
•TMDS lines with ≤0.05 pF matching of capacitance
between the TMDS pairs
•Ultra low line capacitance of 0.7 pF per channel
•HDMI 1.3 compliant
•Backdrive protection.
Refer to figure “HDMI implementation” for details.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Figure 9-14 HDMI implementation
The description of the lines is as follows:
•TMDS (Time Minimized Differential Signal): the actual
HDMI signal
•DDC (Digital Data Channel): the bus used by the source to
read EDID data in the EEPROM and HDCP
authentification
•HPD_RST_A (Hotplug Detect Reset signal): used to pulldown the HPD signal level at the connector when switching
in/out of HDMI mode; the duration of the pulse is around
500-550 ms
•DDC_RST_A has the same behaviour as the HPD_RST_A
signal. It is used to pull-down the I
2
C clock line to prevent
some problems with certain video graphic cards
•HDMI_CEC_A is the Consumer Electronic Control remote
control signal bus.
It should be noted that in this chassis the HDCP-key is
embedded in the main processor (no need for a separate
Service-SSB).
algorithm that adapts aspect ratio to
remove horizontal black bars; keeping
up the original aspect ratio
ACIAutomatic Channel Installation:
algorithm that installs TV channels
directly from a cable network by
means of a predefined TXT page
ADCanalogue to Digital Converter
AFCAutomatic Frequency Control: control
signal used to tune to the correct
AGCAutomatic Gain Control: algorithm that
AMAmplitude Modulation
AUOAcer Unipack Optronics
APAsia Pacific
ARAspect Ratio: 4 by 3 or 16 by 9
ASDAutomatic Standard Detection
AVAudio Video
B/GMonochrome TV system. Sound
for a CAM in a set top box
CLConstant Level: audio output to
connect with an external amplifier
CLUTColour Look Up Table
ComPairComputer aided rePair
COFDMCoded Orthogonal Frequency Division
Multiplexing; A multiplexing technique
that distributes the data to be
transmitted over many carriers
CSMCustomer Service Mode
CVBSComposite Video Blanking and
Synchronisation
CVBS-MONCVBS monitor signal
CVBS-TER-OUTCVBS terrestrial out
CVIComponent Video Input
DACDigital to analogue Converter
DBEDynamic Bass Enhancement: extra
low frequency amplification
DDCDisplay Data Channel; is a part of the
"Plug and Play" feature
DFUDirections For Use: owner's manual
DNRDynamic Noise Reduction
DRAMDynamic RAM
DSPDigital Signal Processing
DSTDealer Service Tool: special
(European) remote control designed
for service technicians
DTSDigital Theatre Sound
DVB(T)Digital Video Broadcast; An MPEG2
I, L is all bands except for Band I
LPLLG Philips LCD
LSLoud Speaker
LVDSLow Voltage Differential Signalling,
data transmission system for high
speed and low EMI communication.
M/NMonochrome TV system. Sound
carrier distance is 4.5 MHz
MOSFETMetal Oxide Semiconductor Field
Effect Transistor
MPEGMotion Pictures Experts Group
MSPMulti-standard Sound Processor: ITT
sound decoder
MUTEMUTE Line
NAFTANorth American Free Trade
Association: Trade agreement
between Canada, USA and Mexico
NCNot Connected
NICAMNear Instantaneous Compounded
Audio Multiplexing. This is a digital
sound system, used mainly in Europe.
NTSCNational Television Standard
Committee. Colour system used
mainly in North America and Japan.
Colour carrier NTSC M/N = 3.579545
MHz, NTSC 4.43 = 4.433619 MHz
(this is a VCR norm, it is not
transmitted off-air)
NVMNon Volatile Memory: IC containing
TV related data (for example, options)
O/COpen Circuit
ON/OFF LEDOn/Off control signal for the LED
OADOver the Air Download
OSDOn Screen Display
PALPhase Alternating Line. Colour system
used mainly in Western Europe
(colour carrier = 4.433619 MHz) and
South America (colour carrier PAL M =
3.575612 MHz and PAL N = 3.582056
MHz)
PCPersonal Computer
PCBPrinted Circuit Board (or PWB)
PDPPlasma Display Panel
PIGPicture In Graphic
PIPPicture In Picture
PLLPhase Locked Loop. Used, for
example, in FST tuning systems. The
customer can directly provide the
desired frequency
PSUPower Supply Unit
PWBPrinted Wiring Board (or PCB)
PWMPulse Width Modulation
RAMRandom Access Memory
RCRemote Control transmitter
RC5 (6)Remote Control system 5 (6), the
signal from the remote control receiver
RFRadio Frequency
RGBRed, Green, and Blue. The primary
and Vertical sync
ROMRead Only Memory
SAMService Alignment Mode
SCSandCastle: two-level pulse derived
from sync signals
SC1-OUTSCART output of the MSP audio IC
SC2-OUTSCART output of the MSP audio IC
S/CShort Circuit
SCLClock signal on I2C bus
SDStandard Definition: 480i, 576i
SDAData signal on I2C bus
SDISamsung Display Industry
SDMService Default Mode
SDRAMSynchronous DRAM
SECAMSEequence Couleur Avec Memoire.
Colour system used mainly in France
and Eastern Europe. Colour carriers =
4.406250 MHz and 4.250000 MHz
SIFSound Intermediate Frequency
SMPSSwitch Mode Power Supply
SNDSouND
SOPSSelf Oscillating Power Supply
S/PDIFSony Philips Digital InterFace
SRAMStatic RAM
SSBSmall Signal Board
STBYStand-by
SVHSSuper Video Home System
SWSub Woofer / SoftWare / Switch
THDTotal Harmonic Distortion
TXTTeleteXT
UARTUniversal Asynchronous Receiver/
Association
VGAVideo Graphics Array
WDWatch Dog
WYSIWYRWhat You See Is What You Record:
record selection that follows main
picture and sound
XTALQuartz crystal
YPbPrComponent video (Y= Luminance, Pb/
Pr= Colour difference signals B-Y and
R-Y, other amplitudes w.r.t. to YUV)
Y/CVideo related signals: Y consists of
luminance signal, blanking level and
sync; C consists of colour signal.
Y-OUTLuminance-signal
YUVBaseband component video (Y=
Luminance, U/V= Colour difference
signals)
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.8IC Data Sheets
This section shows the internal block diagrams and pin layouts
of ICs that are drawn as "black boxes" in the electrical diagrams
(with the exception of "memory" and "logic" ICs).
9.8.1Diagram B02, Type UV1316E (IC1104), Tuner
Block Diagram
EN 65LC8.1E LB9.
5V
HIGH
MID
LOW
1
AGCTUASSCLSDAn.c5VADC33VIF2/ncIF1
5V
5V
PLL
Pin Configuration
SYMBOLPINDESCRIPTION
AGC1Automatic Gain Control Voltage
TU2Tuning voltage monitor (output)
AS3I
SCL4I
SDA5I
n.c.6Not Connected
V
s
7Supply Voltage +5V
ADC8
V
ST
9Fixed tuning Supply Voltage +33V
I.F out 2 / d.n.c10Symmetrical I.F output 2 / Do not connect for asymmetrical
I.F out 111Asymmetrical I.F Output / Symmetrical I.F output 1
GNDM1,M2,M3,M4 Mounting Tags (Ground)
2
C-Bus Address Select
2
C-Bus Serial Clock
2
C-Bus Serial Data
ADC Input
(5)
IF1
IF2
nc
G_16510_060.eps
221106
Figure 9-15 Internal block diagram and pin configuration
EN 66LC8.1E LB9.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.8.2Diagram B03, Type WT61P8S (IC7303), Weltrend Microprocessor
Block Diagram
Turbo 8052 MCU
32K bytes
code flash
Internal 256
bytesSRAM
Timer0,
Timer1,
Timer2,
Timer3,
UART0,
UART1
External 512K
bytesSRAM
Reset
Processor
Clock
Processor
Clock off &
Wake Up
Interrupt
Processor
Watchdog
timer
Slave IIC
VGA DDC
internal bus
DVI DDC
1 HV Sync
counter
2 HV Sync
counter
IR Detector
PWM/LPWM
4 IRQ
Processor
GPIO
Processor
RTC
Pin Configuration
GPIOE1/ PWM1
NRST
GPIOE0/ PWM0
42
43
GND
OSCO
OSCI
44
1
2
3
4
5
61P8S_RG440WT
6
7
8
9
10
11
121314
GPIOC7/P17/IRQ1
GPIOC6/P16/IRQ0
GPIOC5/P 15/TXD0
VDD33V
GPIOB6/SSDA
GPIOB5/SSCL
GPIOB4/P05
GPIOB3/P04
GPIOB2/IR
GPIOB1/IRQ3/CEC
GPIOB0/IRQ2
Key Pad ADC
GPIOE7/ VIN1
GPIOE6/ VIN2
GPIOE2/ PWM2
GPIOE3/ PWM3
GPIOE4/LPWM/P06
GPIOE5/ P07
36
37
394041
38
(LQFP)
16
171819
15
GPIOC3/AD3
GPIOC4/P14/RXD0
202122GPIOA5/DSDA2
DSDA1
GPIOC1/AD1
GPIOC0/AD0
GPIOC2/AD2
GPIOD1/H IN2
GPIOD0/H IN1
35
34
33
32
31
30
29
28
27
26
25
24
23
DSCL1
GPIOD2/P10/AD4
GPIOD3/P11/AD5
GPIOD4/P12/AD6
GPIOD5/P13/AD7
GPIOD6/TXD1
GPIOD7/RXD1
GPIOA0/PWM4/P00
GPIOA1/PWM5/P01
GPIOA2/PWM6/P02
GPIOA3/PWM7/P03
GPIOA4/DSCL2
VDD33V
GND
OSCO
OSCI
GPIOB6/S SDA
GPIOB5/S SCL
GPIOB4/P05
GPIOB3/P04
GPIOB2/I R
GPIOB1/IRQ3/CEC
GPIOB0/IRQ2
NC1
CEC
GPIOE1/PWM1
NRST
GPIOE0/PWM0
NC5NC2
47
46
48
1
2
3
4
5
6
61P8S_RG480WT
7
8
9
10
11
12
13
141516
GPIOC6/P16/IRQ0
GPIOC7/P17/IRQ1
(LQFP)
GPIOC5/P15/TXD0
GPIOE2/PWM2
17
GPIOC4/P14/RXD0
GPIOD1/HIN2
GPIOD0/HIN1
GPIOE6/VIN2
GPIOE5/P07
GPIOE7/VIN1
GPIOE3/PWM3
GPIOE4/LPWM/P06
41
42
434445
19
202122
18
GPIOC1/A D1
GPIOC2/A D2
GPIOC3/A D3
37
40
39
38
GPIOD2/P10/AD4
36
GPIOD3/P11/AD5
35
GPIOD4/P12/AD6
34
GPIOD5/P13/AD7
33
GPIOD6/TXD1
32
GPIOD7/RXD1
31
GPIOA0/PWM4/P00
30
GPIOA1/PWM5/P01
29
GPIOA2/PWM6/P02
28
GPIOA3/PWM7/P03
27
GPIOA4/DSCL2
26
GPIOA5/DSDA2
25
24
23
NC3
DSCL1
DSDA1
GPIOC0/A D0
I_18170_024.eps
290708
Figure 9-16 Internal block diagram and pin configuration
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.8.3Diagram B04A, Type TDA15471HV (IC7C01), LOC-TOP Video/Audio Processor
Block Diagram
EN 67LC8.1E LB9.
Pin Configuration
Figure 9-17 Internal block diagram and pin configuration
I_18170_025.eps
290708
EN 68LC8.1E LB9.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.8.4Diagram B05A, Type TDA8890H1 (IC7401), Versatile Front-End Signal Processor
Block Diagram
SIFIN
AM DEMODULATOR
VIDOUTS1
AGCOUT
VIFIN
YSYNC
CVBS2/Y2
CVBS5/Y5
C2/C4/C5/
CVBS4/Y4
VIDOUTS2
VISION IF/AGC/AFC
VIDEO SWITCH
VIDEO FILTERS
SWITCH
QSS SOUND IF
AGC
QSS MIXER
PLL DEMOD.
SOUND TRAP
GROUP DELAY
VIDEO AMP.
VIDEO IDENT.
H/V SYNC SEP.
H-OSC. + PLL
H/V
AGC2SIF
H/V
TIMING
SYSTEM
RGB/YP
SWITCH
SCART/CINCH
5/8V
IN/OUT
SSIFOUT
//
MAINOUTL/R
DSPINL/R
CLKIN/P
SLPNOT
SDA/SCL
MAINVIDOUT
MAINCOUT
V/HSYNCPIP
HSYNCPIP
AUDIO SELECT
AM
CLK GENERATION
RESET
2
I
C-BUS
P
R
B
YPRPB OUTPUT
Pin Configuration
SSIFOUT 758 PLLIF
MAINOUTL 956 -
MAINOUTR 1055 AGC2SIF
HSYNCPIP 1154 VP2
V/HSYNCPIP 1253 VIDOUTS1
MAINVIDOUT 1649 -
MAINCOUT 1748 IN2L
VDDA1(3.3V) 2243 -
PBOUTPIP 2342 C2/C4/C5
YOUTPIP 2441 OUTS2L
G3/
Y3
R3/
CVBS3
3/
P
R
C3
DECDIG
DECDIGNEG
SWO
VP1
PH1LF
GND1
I.C.
536373839304
34
30
31
INSSW3
R3/PR3/C3
DECBG
727374
33
32
YOUT
80
797877767574737271706968676665
65
66
67
68
CLKIN 164 IN3L
CLKIP 263 IN3R
SLPNOT 362 OUTS1L
DSPINL 461 OUTS1R
DSPINR 560 SIFAGC
-659 GND2
-857 VCC5/8V
SCL 1352 IN4L
SDA 1451 IN4R
test 1550 CVBS4/Y4
IN5R 1847 -
IN5L 1946 CVBS2/Y2
IN6R 2045 IN2R
IN6L 2144 CVBS5/Y5
25
26
VP4
PROUTPIP
697071
TDA8890
29
27
28
GND4
B3/PB3
G3/Y3/CVBS3
VIFIN1
32
33
YSYNC
VIFIN2
31
34
IN7R
INSW3
B3/
P
3
B
test
GNDIF
75
76
30
29
353637
VP3
IN7L
SIFIN1
77
28
GND3
YOUT
SIFIN2
78
272625
38
test
AGCOUT
test
79
80
39
40
OUTS2R
VIDOUTS2
YOUTPIP
OUTPIPPROUTPIP
P
B
I_18170_023.eps
290708
Figure 9-18 Internal block diagram and pin configuration
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.8.5Diagram B05B, Type TDA8932BT (IC7A01), Audio Amplifier
EN 69LC8.1E LB9.
Block Diagram
2
IN1P
3
IN1N
IN2P
IN2N
DIAG
12
15
14
4
7
6
5
INREF
CGND
POWERUP
ENGAGE
OSCILLATOR
V
SSD
PROTECTIONS:
OVP, OCP, OTP,
UVP, TF, WP
MODE
PWM
MODULATOR
PWM
MODULATOR
MANAGER
VOICSOFERCSO
DDA
CTRL
CTRL
81301
DRIVER
HIGH
DRIVER
LOW
DRIVER
HIGH
DRIVER
LOW
STABILIZER 11 V
STABILIZER 11 V
REGULATOR 5 V
V
DDA
28
BOOT1
29
V
DDP1
27
OUT1
26
V
SSP1
21
BOOT2
20
V
DDP2
22
OUT2
23
V
SSP2
V
DDA
V
SSP1
V
DDA
V
SSP2
V
SSD
25
STAB1
24
STAB2
18
DREF
11
HVPREF
13
TEST
Pin Configuration
30
HVP1
V
TDA8932
9
V
SSA
V
V
SSD(HW)
V
V
OSCREF
V
SSD(HW)
1, 16, 17, 32
SSD(HW)
DDA
SSA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
TDA8932T
SSA
HALF SUPPLY VOLTAGE
32
V
SSD(HW)
31
OICSOP1NI
30
1PVHN1NI
29
VGAID
DDP1
28
1TOOBEGAGNE
27
1TUOPUREWOP
26
VDNGC
SSP1
25
STAB1
24
STAB2
V
23
SSP2
22
2TUOFERPVH
21
2TOOBFERNI
20
VTSET
DDP2
19
2PVHN2NI
18
FERDP2NI
17
V
SSD(HW)
19
HVP2
G_16860_045.eps
300107
Figure 9-19 Internal block diagram and pin configuration
EN 70LC8.1E LB9.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.8.6Diagram B06D, Type IP4776 (IC7N07), HDMI Interface
Block Diagram
DDC_CLK_IN
HOT_PLUG_DET_IN
V
CC(3V3)
V
CC(3V3)
TMDS_BIAS
TMDS_BIAS
TMDS_GND
DDC_CLK_OUT
HOT_PLUG_DET_OUT
CEC_IN
DDC_DAT_IN
+0D_SDMT+1D_SDMT+2D_SDMTTMDS_BIAS
V
CC(3V3)
V
CC(3V3)
TMDS_CLK+
TMDS_CLK−TMDS_D0−TMDS_D1−TMDS_D2−
TMDS_BIAS
TMDS_BIAS
V
CC(5V0)
CEC_OUT
DDC_DAT_OUT
Pin Configuration
CC(5V0)
CC(3V3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
IP4776CZ38
V
V
D
38
n.c.
37
TMDS_BIAS
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
DNGDNG
.c.n+2D_SDMT
DNG_SDMTDNG_SDMT
2D_SDMT.c.n−
.c.n+1D_SDMT
DNG_SDMTDNG_SDMT
1D_SDMT.c.n−
.c.n+0D_SDMT
G_SDMTDNG_SDMT
DN
0D_SDMT.c.n−
.c.n+KLC_SDMT
DNG_SDMTDNG_SDMT
KLC_SDMT.c.n−
TUO_CECNI_CEC
Figure 9-20 Internal block diagram and pin configuration
TUO_KLC_CDDNI_KLC_CD
TUO_TAD_CDDNI_TAD_CDD
TUO_TED_GULP_TOHNI_TED_GULP_TOH
I_18170_026.eps
300708
Spare Parts List & CTN Overview
10. Spare Parts List & CTN Overview
For the latest spare part overview, please consult the Philips
Service website.
Table 10-1 Sets described in this manual:
CTNStylingPublished in:
32PFL3403/12MG83122 785 18170
32PFL3403/60MG83122 785 18171
32PFL3403S/60MG83122 785 18171
42PFL3403/12MG83122 785 18170
42PFL3403/60MG83122 785 18171
42PFL3403S/60MG83122 785 18171
11. Revision List
Manual xxxx xxx xxxx.0
•First release.
Manual xxxx xxx xxxx.1
•All chapters: Added 4 sets (See table chapter 10).
•Chapter 5: "LLLLL" removed from SAM explanations.
EN 71LC8.1E LB10.
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