Copyright 2008 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.
Published by WS 0861 BU CD Consumer CarePrinted in the NetherlandsSubject to modificationEN 3122 785 17740
Page 2
EN 2LC8.1U LA1.
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: 42" (107 cm), 16:9
Resolution (H × V pixels): 1920 × 1 080
Dyn. contrast ratio: 29000:1
Min. light output (cd/m
Typ. response time (ms): 2 (4xPFL7x03/27)
Viewing angle (H × V degrees): 176 × 176
Tuning system: PLL
Presets/channels: 100 presets
Tuner bands: VHF, UHF, S, H
TV Color systems: ATSC
Safety regulations require the following during a repair:
•Connect the set to the Mains/AC Power via an isolation
transformer (> 800 VA).
•Replace safety components, indicated by the symbol h,
only by components identical to the original ones. Any
other component substitution (other than original type) may
increase risk of fire or electrical shock hazard.
Safety regulations require that after a repair, the set must be
returned in its original condition. Pay in particular attention to
the following points:
•Route the wire trees correctly and fix them with the
mounted cable clamps.
•Check the insulation of the Mains/AC Power lead for
external damage.
•Check the strain relief of the Mains/AC Power cord for
proper function.
•Check the electrical DC resistance between the Mains/AC
Power plug and the secondary side (only for sets that have
a Mains/AC Power isolated power supply):
1. Unplug the Mains/AC Power cord and connect a wire
between the two pins of the Mains/AC Power plug.
2. Set the Mains/AC Power switch to the “on” position
(keep the Mains/AC Power cord unplugged!).
3. Measure the resistance value between the pins of the
Mains/AC Power plug and the metal shielding of the
tuner or the aerial connection on the set. The reading
should be between 4.5 Mohm and 12 Mohm.
4. Switch “off” the set, and remove the wire between the
two pins of the Mains/AC Power plug.
•Check the cabinet for defects, to prevent touching of any
inner parts by the customer.
2.2Warnings
•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 color 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.
•Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the “double-D symbol”, are
trademarks of Dolby Laboratories.
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= × 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
-9
), or pico-farads (p= × 10
-12
-6
),
).
Page 6
EN 6LC8.1U LA3.
avoid mixed regimes. If this cannot be avoided, carefully
clear the solder-joint from old tin and re-solder with new tin.
2.3.5Alternative BOM identification
The third digit in the serial number (example:
AG2B0335000001) indicates the number of the alternative
B.O.M. (Bill Of Materials) that has been used for producing the
specific TV set. In general, it is possible that the same TV
model on the market is produced with e.g. two different types
of displays, coming from two different suppliers. This will then
result in sets which have the same CTN (Commercial Type
Number; e.g. 28PW9515/12) but which have a different B.O.M.
number.
By looking at the third digit of the serial number, one can
identify which B.O.M. is used for the TV set he is working with.
If the third digit of the serial number contains the number “1”
(example: AG1B033500001), then the TV set has been
manufactured according to B.O.M. number 1. If the third digit is
a “2” (example: AG2B0335000001), then the set has been
produced according to B.O.M. no. 2. This is important for
ordering the correct spare parts!
For the third digit, the numbers 1...9 and the characters A...Z
can be used, so in total: 9 plus 26= 35 different B.O.M.s can be
indicated by the third digit of the serial number.
Identification: The bottom line of a type plate gives a 14-digit
serial number. Digits 1 and 2 refer to the production 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
130606
3.Directions for Use
You can download this information from the following websites:
http://www.philips.com/support
http://www.p4c.philips.com
Page 7
4.Mechanical Instructions
Mechanical Instructions
EN 7LC8.1U LA4.
Index of this chapter:
4.1 Cable Dressing
4.2 Service Positions
4.3 Assy/Panel Removal ME8 Styling
4.4 Set Re-assembly
4.1Cable Dressing
Notes:
•Figures below can deviate slightly from the actual situation,
due to the different set executions.
•Follow the disassemble instructions in described order.
For easy servicing of this set, there are a few possibilities
created:
•The buffers from the packaging.
•Foam bars (created for Service).
4.2.1Foam Bars
1
Required for sets
1
42"
E_06532_018.eps
171106
Mechanical Instructions
Figure 4-3 Foam bars
The foam bars (order code 3122 785 90580 for two pieces) can
be used for all types and sizes of Flat TVs. See figure “Foam
bars” for details.
Sets with a display of 42" and larger, require four foam bars [1].
Ensure that the foam bars are always supporting the cabinet
and never only the display.
Caution: Failure to follow these guidelines can seriously
damage the display!
By laying the TV face down on the (ESD protective) foam bars,
a stable situation is created to perform measurements and
alignments. By placing a mirror under the TV, you can monitor
the screen.
4.2.2Service Stands
The MkII aluminium Service Stands are not suitable for this
chassis. Use the stands that come with the set instead.
Page 9
Mechanical Instructions
EN 9LC8.1U LA4.
4.3Assy/Panel Removal ME8 Styling
4.3.1Back Cover
Warning: Disconnect the mains power cord before you remove
the back cover.
Note: it is not necessary to remove the stand while removing
the back cover.
Warning: Most sets have an additional hatch located in the
back cover. These are meant for disconnecting the flat cables
to the AmbiLight units in the back cover, before the back cover
is lifted from the set. The hatches are not always located at the
2
2
2
2
same place for all sets, therefore the figures below are only
meant as indication.
It is mandatory to locate these hatches first, open them, and
unplug connectors behind. Lifting the back cover without
having done so, could result in damaging the connectors
inside!
Refer to next figures for details.
1. First remove the screws [1] from the back cover hatch and
remove the hatch.
2. Then unplug connector(s) [3].
3. Remove the screws [2], gently lift the back cover from the
set. Make sure that wires and flat coils are not damaged
while lifting the back cover from the set.
2
2
2
2
2
1
1
2
2
2
2
2222
2
Figure 4-4 Back Cover Removal [1/2]
3
2
H_17740_024.eps
230108
Figure 4-5 Back Cover Removal [2/2]
H_17740_022.eps
230108
Page 10
EN 10LC8.1U LA4.
Mechanical Instructions
4.3.2Ambilight (if present)
Refer to next figure for details.
1. Unplug the connectors [1].
2. Remove the screws [2].
3. Pull the unit sidewards from the back cover.
When defective, replace the whole unit.
2
Figure 4-6 Ambilight Unit
4.3.3Woofers
1
H_17650_097.eps
180108
4.3.5IR & LED Board
Refer to next figure for details.
1. Unplug connectors [1].
2. Use a flat screw driver to release the clip by pushing it in
the indicated direction [2].
3. Lift the board and take it out of the set.
When defective, replace the whole unit.
1
2
H_17650_098.eps
Figure 4-9 IR & LED Board
4.3.6Key Board
180108
Refer to next figure for details.
1. Remove the screws [1] and [2] and lift the whole unit from
the back cover.
Take the speakers out together with their casing. When
defective, replace the whole unit.
32
31
Figure 4-7 Woofer
4.3.4 Tweeters
Refer to next figure for details.
Warning: The speakers should never be connected or
disconnected when the set is playing! This can damage the
amplifiers on the SSB.
1. Remove the screws [1] and lift the whole unit from the back
cover.
When defective, replace the whole unit.
H_17740_023.eps
230108
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
H_17650_094.eps
180108
Figure 4-10 Key Board
1
2
Figure 4-8 Tweeter
H_17650_095.eps
180108
Page 11
Mechanical Instructions
EN 11LC8.1U LA4.
4.3.7Display Supply Panel
Refer to next figure for details.
1. Unplug connectors [1].
2. Remove the fixation screws [2].
3. Take the board out.
2
2
2
2
4.3.8Small Signal Board (SSB)
Refer to below 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.
Refer to next figures or details.
1
1
2
2
1
2
1
2
H_17740_021.eps
230108
1. Unplug the LVDS connector(s) [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
front shield and the side cover.
5. To remove the shield, remove the screws [4] and lift it of
while releasing clips [5].
6. Release clip [6] and slide the cover sidewards from the
SSB.
Figure 4-11 Display Supply Panel
3
OPTIONAL
1
OPTIONAL
3
2
OPTIONAL
3
3
6
55
44 4444
4
3
4
3
3
5
H_17740_019.eps
Figure 4-12 Small Signal Board
230108
Page 12
EN 12LC8.1U LA4.
4.3.9LCD Panel
Refer to next figures for details.
1. Remove the stand.
2. Unplug the LVDS connector(s) [1].
Caution: be careful, as this is a very fragile connector!
3. Unplug the connectors [2].
4. Remove the fixation screws [3] from rim.
5. Take the rim from the set.
6. Remove the fixation screws [4] and [5].
7. Lift the subframe from the set.
8. The LCD panel can now be lifted from the front cabinet.
Mechanical Instructions
4
5
3
5
4
5
4
5
1
2
2
3
5
5
4
4
4
5
5
4
4
2
4.4Set Re-assembly
To re-assemble the whole set, execute all processes in reverse
order.
Notes:
•While re-assembling, make sure that all cables are placed
and connected in their original position. See figure “Cable
dressing”.
•Pay special attention not to damage the EMC foams on the
SSB shields. Ensure that EMC foams are mounted
correctly.
H_17740_020.eps
230108
Figure 4-13 LCD Panel
Page 13
Service Modes, Error Codes, and Fault Finding
5.Service Modes, Error Codes, and Fault Finding
EN 13LC8.1U LA5.
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 Fault Finding and Repair Tips
5.7 Software Upgrading
5.1Test Points
In the chassis schematics and layout overviews, the test points
are mentioned. In the schematics, test points are indicated with
“Fxxx” or “Ixxx”, in the layout overviews with a “half-moon” sign.
As most signals are digital, it will be difficult to measure
waveforms with a standard oscilloscope. Several key ICs are
capable of generating test patterns, which can be controlled via
ComPair. In this way it is possible to determine which part is
defective.
Perform measurements under the following conditions:
•Service Default Mode.
•Video: Color bar signal.
•Audio: 3 kHz left, 1 kHz right.
5.2Service Modes
The Service Mode feature is split into four parts:
•Service Default Mode (SDM).
•Service Alignment Mode (SAM).
•Customer Service Mode (CSM).
•Computer Aided Repair Mode (ComPair).
SDM and SAM offer features, which can be used by the Service
engineer to repair/align a TV set. Some features are:
•A pre-defined situation to ensure measurements can be
made under uniform conditions (SDM).
•Activates the blinking LED procedure for error identification
when no picture is available (SDM).
•The possibility to overrule software protections when SDM
is entered via the Service pins.
•Make alignments (e.g. White Tone), (de)select options,
enter options codes, reset the error buffer (SAM).
•Display information (“SDM” or “SAM” indication in upper
right corner of screen, error buffer, software version,
operating hours, options and option codes, sub menus).
The CSM is a Service Mode that can be enabled by the
consumer. The CSM displays diagnosis information, which the
customer can forward to the dealer or call centre. In CSM
mode, “CSM”, is displayed in the top right corner of the screen.
The information provided in CSM and the purpose of CSM is to:
•Increase the home repair hit rate.
•Decrease the number of nuisance calls.
•Solved customers' problem without home visit.
ComPair Mode is used for communication between a computer
and a TV on I2C /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 I2C with help of ComPair. To do this,
ComPair has to be connected to the TV set via the ComPair
connector, which will be accessible through the rear of the set
(without removing the rear cover).
5.2.1General
Some items are applicable to all Service Modes or are general.
These are listed below.
Life Timer
During the life time cycle of the TV set, a timer is kept (called
“Op. Hour”). It counts the normal operation hours (not the
Stand-by hours). The actual value of the timer is displayed in
SDM and SAM in a decimal value. Every two soft-resets
increase the hour by +1. Standby hours are not counted.
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.
•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: P= Philips, M=
Magnavox.
•X is the main version number: this is updated with a major
change of specification (incompatible with the previous
software version). Numbering will go from 1 - 9 and A - Z.
– If the main version number changes, the new version
number is written in the NVM.
– If the main version number changes, the default
settings are loaded.
•YY is the sub version number: this is updated with a minor
change (backwards compatible with the previous versions)
Numbering will go from 00 - 99.
– If the sub version number changes, the new version
number is written in the NVM.
– If the NVM is fresh, the software identification, version,
and cluster will be written to NVM.
Display Option Code Selection
When after an SSB or display exchange, the display option
code is not set properly, it will result in a TV with “no display”.
Therefore, it is required to set this display option code after
such a repair.
To do so, press the following key sequence on a standard RC
transmitter: “062598” directly followed by MENU and “xxx”,
where “xxx” is a 3 digit decimal value of the panel type: see
column “Panel Code” in table “Option Codes OP1...OP7” (ch.
8), or see sticker on the side/bottom of the cabinet. When the
value is accepted and stored in NVM, the set will switch to
Stand-by, 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
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 SSBrelated (e.g. Model and Prod. S/N). Therefore, “Model” and
“Prod. S/N” data is changed into “See Type Plate”.
In case a call centre or consumer reads “See Type Plate” in
CSM mode, he needs to look to the side/bottom sticker to
identify the set, for further actions.
240108
Page 14
EN 14LC8.1U LA5.
Service Modes, Error Codes, and Fault Finding
5.2.2Service Default Mode (SDM)
Purpose
Set the TV in SDM mode in order to be able to:
•Create a pre-defined setting for measurements to be
made.
•Override software protections.
•Start the blinking LED procedure.
•Read the error buffer.
•Check the life timer.
Specifications
Table 5-1 SDM default settings
RegionFreq. (MHz)Default syst.
Europe (except France),
475.25PAL B/G
AP-PAL/-Multi
FranceSECAM L
NAFTA, AP-NTSC61.25 (channel 3) NTSC M
LATAMPAL M
•Set linear video and audio settings to 50%, but volume to
25%. Stored user settings are not affected.
•All service-unfriendly modes (if present) are disabled, since
they interfere with diagnosing/repairing a set. These
service unfriendly modes are:
– (Sleep) timer.
– Blue mute/Wall paper.
– Auto switch “off” (when there is no “ident” signal).
– Hotel or hospital mode.
– Child lock or parental lock (manual or via V-chip).
– Skipping, blanking of “Not favorite”, “Skipped” or
“Locked” presets/channels.
– Automatic storing of Personal Preset or Last Status
settings.
– Automatic user menu time-out (menu switches back/
OFF automatically.
– Auto Volume levelling (AVL).
How to Activate
To activate SDM, use one of the following methods:
•Press the following key sequence on the remote control
transmitter: “062596” directly followed by the MENU button
(do not allow the display to time out between entries while
keying the sequence).
•Short one of the “Service” jumpers on the TV board during
cold start (see Figures “Service jumper”). Then press the
mains button (remove the short after start-up).
Caution: Activating SDM by shorting “Service” jumpers will
override the DC speaker protection (error 1), the General
I2C error (error 4), and the Trident video processor error
(error 5). When doing this, the service-technician must
know exactly what he is doing, as it could damage the
television set.
On Screen Menu
After activating SDM, the following screen is visible, with SDM
in the upper right corner of the screen to indicate that the
television is in Service Default Mode.
H_17740_030.eps
230108
Figure 5-3 SDM menu
Menu explanation:
•HHHHH: Are the operating hours (in decimal).
•AAAABCD-X.YY: See paragraph “Service Modes” ->
“General” -> “Software Identification, Version, and Cluster”
for the SW name definition.
•EER: Shows all errors detected since the last time the
buffer was erased. Five errors possible.
•OP: Used to read-out the option bytes. See “Options” in the
Alignments section for a detailed description. Ten codes (in
two rows) are possible.
How to Navigate
As this mode is read only, there is not much to navigate. To
switch to other modes, use one of the following methods:
•Command MENU from the user remote will enter the
normal user menu (brightness, contrast, color, etc...) with
“SDM” OSD remaining, and pressing MENU key again will
return to the last status of SDM again.
•To prevent the OSD from interfering with measurements in
SDM, command “OSD” or “i+” (“STATUS” or “INFO” for
NAFTA and LATAM) from the user remote will toggle the
OSD “on/off” with “SDM” OSD remaining always “on”.
•Press the following key sequence on the remote control
transmitter: “062596” directly followed by the OSD/STATUS/INFO/i+ button to switch to SAM (do not allow the
display to time out between entries while keying the
sequence).
How to Exit
Switch the set to STANDBY by pressing the mains button on
the remote control transmitter or on the television set.
If you switch the television set “off” by removing the mains (i.e.,
unplugging the television), the television set will remain in SDM
when mains is re-applied, and the error buffer is not cleared.
The error buffer will only be cleared when the “clear” command
is used in the SAM menu.
H_17740_031.eps
230108
Figure 5-2 Service jumper (SSB component side)
Note:
•If the TV is switched “off” by a power interrupt while in SDM,
the TV will show up in the last status of SDM menu as soon
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.
Page 15
Service Modes, Error Codes, and Fault Finding
EN 15LC8.1U LA5.
5.2.3 Service Alignment Mode (SAM)
Purpose
•To change option settings.
•To display / clear the error code buffer.
•To perform alignments.
Specifications
•Operation hours counter (maximum five digits displayed).
•Software version, error codes, and option settings display.
•Error buffer clearing.
•Option settings.
•Software alignments (White Tone).
•NVM Editor.
•Set the screen mode to full screen (all content on screen is
visible).
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.
How to Navigate
•In the SAM menu, select menu items with the UP/DOWN
keys on the remote control transmitter. The selected item
will be indicated. When not all menu items fit on the screen,
use the UP/DOWN keys to display the next / previous
menu items.
•With the 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.
•The “OSD/STATUS/INFO/i+” key from the user remote will
toggle the OSD “on/off” with “SAM” OSD remaining always
“on”.
•Press the following key sequence on the remote control
transmitter: “062596” directly followed by the MENU button
to switch to SDM (do not allow the display to time out
between entries while keying the sequence).
How to Store SAM Settings
To store the settings changed in SAM mode (except the
OPTIONS and RGB ALIGN settings), leave the top level SAM
menu by using the POWER button on the remote control
transmitter or the television set. The mentioned exceptions
must be stored separately via the STORE button.
How to Exit
Switch the set to STANDBY by pressing the mains button on
the remote control transmitter or the television set.
H_17740_025.eps
230108
Figure 5-4 SAM menu
Menu explanation:
1. System Information:
•Op. Hour. This represents the life timer. The timer
counts normal operation hours, but does not count
Stand-by hours.
•MAIN SW ID. See paragraph “Service Modes” ->
“General” -> “Software Identification, Version, and
Cluster” for the SW name definition.
•ERROR CODES. Shows all errors detected since the
last time the buffer was erased. Five errors possible.
•OP1 / OP2. Used to read-out the option bytes. See
“Options” in the Alignments section for a detailed
description. Ten codes are possible.
2. 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.
3. Options. Used to set the option bits. See “Options” in the
“Alignments” chapter for a detailed description.
4. RGB Align. Used to align the White Tone. See “White
Tone” in the “Alignments” chapter for a detailed
description.
5. NVM Editor. Can be used to change the NVM data in the
television set. See also paragraph “Fault Finding and
Repair Tips” further on.
6. NVM Copy. Gives the possibility to copy/load the NVM file
to/from an USB stick.
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.
Page 16
EN 16LC8.1U LA5.
Service Modes, Error Codes, and Fault Finding
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.
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
is visible).
•After leaving the Customer Service Mode, the original
settings are restored.
•Possibility to use “CH+” or “CH-” for channel surfing, or
enter the specific channel number on the RC.
How to Activate
To activate CSM, press the following key sequence on a
standard 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:
Menu Explanation
1. Model Number. Type number, e.g. 42PFL5603D/27. (*)
2. Production Serial Number. Product serial no., e.g.
SV1A0805123456 (*). SV= Production center, 1= BOM
code, A= Service version change code, 08= Production
year, o5= Production week, 123456= Serial number.
3. Software Version. Main software cluster and version is
displayed.
4. Option Code 1. Option code information (group 1).
5. Option Code 1. Option code information (group 2).
6. Codes. Error buffer contents.
7. SSB. Indication of the SSB factory ID (= 12nc). (*)
8. Display. Indication of the display ID (=12 nc). (*)
9. NVM Version. The NVM software version no.
10. PQ Version. PQ (picture quality) data version. This is a
subset of the main SW.
11. Key (HDCP). Indicates if the HDMI keys (or HDCP keys)
are valid or not.
12. Digital Signal Quality. Tuner signal condition in
percentage.
13. Blank.
14. Audio System. Gives information about the audio system
of the selected transmitter (MONO/STEREO).
15. HDAU. HDMI audio stream detection. “YES” means audio
stream detected. “NO” means no audio stream present.
Only displayed when HDMI source is selected.
16. Video Format. Gives information about the video format of
the selected transmitter (480p30/720p60/1080i50/1080i60,
etc...). Is applicable to both HDMI and CVI sources.
17. HD SW ID. Shows the HD DNM software version.
18. FPGA SW ID. Shows the FPGA software version (if
present).
19. DFI SW ID. Shows the DFI software version (if present).
20. Standby uP SW ID. Shows the Standby Processor
software version.
Figure 5-5 CSM menu -1- (example)
H_17740_028.eps
230108
H_17740_029.eps
230108
(*) If an NVM IC is replaced or initialized, these items must be
re-written to the NVM. ComPair will foresee in a possibility to
do this.
How to Exit
To exit CSM, use one of the following methods:
•Press the MENU button twice on the remote control
transmitter.
•Press the POWER button on the remote control
transmitter.
•Press the POWER button on the television set.
Figure 5-6 CSM menu -2- (example)
Page 17
Service Modes, Error Codes, and Fault Finding
EN 17LC8.1U LA5.
5.3Service Tools
5.3.1 ComPair
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
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 I2C device.
•General I2C error.
•SDRAM failure.
The last five errors, stored in the NVM, are shown in the
Service menu’s. This is called the error buffer.
The error code buffer contains all errors detected since the last
time the buffer was erased. The buffer is written from left to
right. When an error occurs that is not yet in the error code
buffer, it is displayed at the left side and all other errors shift one
position to the right.
An error will be added to the buffer if this error differs from any
error in the buffer. The last found error is displayed on the left.
An error with a designated error code may never lead to a
deadlock situation. This means that it must always be
diagnosable (e.g. error buffer via OSD or blinking LED
procedure, ComPair to read from the NVM).
In case a failure identified by an error code automatically
results in other error codes (cause and effect), only the error
code of the MAIN failure is displayed.
Example: In case of a failure of the I2C bus (CAUSE), the error
code for a “General I2C failure” and “Protection errors” is
displayed. The error codes for the single devices (EFFECT) is
not displayed. All error codes are stored in the same error
buffer (TV’s NVM) except when the NVM itself is defective.
ComPair II
RC in
Optional
Switch
PowerModeLink/
Activity
HDMI
I2C only
RC out
Multi
function
2
I
C
PC
ComPair II Developed by Philips Brugge
Optional power
5V DC
RS232 /UART
G_06532_036.eps
240807
Figure 5-7 ComPair II interface connection
Caution: It is compulsory to connect the TV to the PC as
shown in the picture above (with the ComPair interface in
between), as the ComPair interface acts as a level shifter. If
one connects the TV directly to the PC (via UART), ICs will be
blown!
How to Order
ComPair II order codes:
•ComPair II interface: 3122 785 91020.
•ComPair UART interface cable: 3138 188 75051.
•Program software can be downloaded from the Philips
Service website.
Note: If you encounter any problems, contact your local
support desk.
5.4.2How to Read the Error Buffer
You can read the error buffer in 3 ways:
•On screen via the SAM/SDM/CSM (if you have a picture).
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.
5.3.2LVDS Tool
Support of the LVDS Tool has been discontinued.
Page 18
EN 18LC8.1U LA5.
Service Modes, Error Codes, and Fault Finding
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).
Code Error Description Detection via: Type Remarks
0No Error -- -- -- N/A -- -- --
1DC Protection MT5382
2+12V Failure WT61P7
3Stand-by Control-
ler I2C
4General I2C I2C0 Bus Error Log Communication Error on
5 #MT8280 I2CI2C0 Bus Error Log Communication Error with
6System NVM I2C I2C0 Bus Protection Communication Error with
7Tuner Tuner I2C Bus Erro r Log Commun ication Error with
8IF/PLL Demodula-
tor
9Ambilight FPGA I2C0 Bus Error Log Communication Error with
10Reserved -- -- -- N/A -- -- --
11Reserved -- -- -- N/A -- -- --
12Reserved -- -- -- N/A -- -- --
13HDMI Switch I2C I2C0 Bus Error Log Communication Error with
14MT8280 DRAM1 DRAM R/W
15Reserved -- -- -- N/A -- -- --
16Reserved -- -- -- N/A -- -- --
17Reserved -- -- -- N/A -- -- --
18 # Channel Decoder
I2C
19 # Pro Idiom I2CI2C0 Bus Error Log Communication Error with
21 # Bolt-On HDMI
NVM I2C
(7A01)
(7E23)
I2C0 Bus Protection Communication Error with
Tuner I2C Bus Error Log Communication Error with
(7B02/03)
I2C0 Bus Error Log Communication Error with
I2C0 Bus Error Log Communication Error with
Protection DC_PROT = Low
Protection POWER_DOWN = Low
WT61P7
I2C0 Bus
MT8280
System NVM
Tuner TDQU
TDA9886
EC2S
Sil9185
Error Log R/W Error with DRAM1 or
DRAM2
MT5112 (reserved for
BDS modules)
Pro Idiom (reserved for
BDS modules)
BDS Bolt-On (reserved for
BDS modules)
5.5The Blinking LED Procedure
5.5.1Introduction
The software is capable of identifying different kinds of errors.
Because it is possible that more than one error can occur over
time, an error buffer is available, which is capable of storing the
last five errors that occurred. This is useful if the OSD is not
working properly.
Errors can also be displayed by the blinking LED procedure.
The method is to repeatedly let the front LED pulse with as
many pulses as the error code number, followed by a period of
1.5 seconds in which the LED is “off”. Then this sequence is
repeated.
Example (1): error code 4 will result in four times the sequence
LED “on” for 0.25 seconds / LED “off” for 0.25 seconds. After
this sequence, the LED will be “off” for 1.5 seconds. Any RC5
command terminates the sequence. Error code LED blinking is
in red color.
Example (2): the content of the error buffer is “12 9 6 0 0”
After entering SDM, the following occurs:
•1 long blink of 5 seconds to start the sequence,
•12 short blinks followed by a pause of 1.5 seconds,
•9 short blinks followed by a pause of 1.5 seconds,
•6 short blinks followed by a pause of 1.5 seconds,
•1 long blink of 1.5 seconds to finish the sequence,
•The sequence starts again with 12 short blinks.
5.5.2Displaying the Entire Error Buffer
Additionally, the entire error buffer is displayed when Service
Mode “SDM” is entered. In case the TV set is in protection or
Stand-by: The blinking LED procedure sequence (as in SDMmode in normal operation) must be triggered by the following
RC sequence: “MUTE” “062500” “OK”.
In order to avoid confusion with RC5 signal reception blinking,
this blinking procedure is terminated when a RC5 command is
received.
#If IC/board available.
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:
•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.
Page 19
Service Modes, Error Codes, and Fault Finding
EN 19LC8.1U LA5.
5.6Fault 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.
5.6.1Software Protections
Most of the protections and errors use either the stand-by or the
micro processor as detection device. Since in these cases,
checking of observers, polling of ADCs, and filtering of input
values are all heavily software based, these protections are
referred to as software protections.
There are several types of software related protections, solving
a variety of fault conditions:
•Protections related to supplies: check of the 12V.
•Protections related to breakdown of the safety check mechanism. E.g. since the protection detections are done
by means of software, failing of the software will have to
initiate a protection mode since safety cannot be
guaranteed any more.
Remark on the Supply Errors
The detection of a supply dip or supply loss during the normal
playing of the set does not lead to a protection, but to a cold
reboot of the set. If the supply is still missing after the reboot,
the TV will go to protection.
Protections during Start-up
During TV start-up, some voltages and IC observers are
actively monitored to be able to optimize the start-up speed,
and to assure good operation of all components. If these
monitors do not respond in a defined way, this indicates a
malfunction of the system and leads to a protection.
5.6.2 Hardware Protections
The only real hardware protection in this chassis is (in case of
an audio problem) the audio protection circuit that will trigger
the uP to switch “off” the TV.
Repair Tip
•It is also possible that you have an audio DC protection
because of an interruption in one or both speakers (the DC
voltage that is still on the circuit cannot disappear through
the speakers).
Caution: (dis)connecting the speaker wires during the ON
state of the TV at high volume can damage the audio
amplifier.
Table 5-2 NVM editor overview
HexDecDescription
Address0x000A10Existing value
Value0x00000New value
StoreStore?
5.6.4Load Default NVM Values
It is possible to download default values automatically into the
NVM in case a blank NVM is placed or when the NVM first 20
address contents are “FF”. After the default values are
downloaded, it is possible to start-up and to start aligning the
TV set. To initiate a forced default download the following
action has to be performed:
1. Switch “off” the TV set with the mains cord disconnected
from the wall outlet (it does not matter if this is from “Standby” or “Off” situation).
2. Short-circuit the SDM jumpers on the SSB (keep short
circuited).
3. Press “P+” or “CH+” on the local keyboard (and keep it
pressed).
4. Reconnect the mains supply to the wall outlet.
5. Release the “P+” or “CH+” when the set is started up and
has entered SDM.
When the downloading has completed successfully, the set
should be into Stand-by, i.e. red LED on.
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.
5.6.5Display option code
Caution: In case you have replaced the SSB, always check the
display option code in SAM, even if you have picture. With a
wrong display option code it is possible that you have picture,
but that in certain conditions you have unwanted side-effects.
5.6.3NVM Editor
In some cases, it can be convenient if one directly can change
the NVM contents. This can be done with the “NVM Editor” in
SAM mode. With this option, single bytes can be changed.
Caution:
•Do not change these, without understanding the
function of each setting, because incorrect NVM
settings may seriously hamper the correct functioning
of the TV set!
•Always write down the existing NVM settings, before
changing the settings. This will enable you to return to the
original settings, if the new settings turn out to be incorrect.
Page 20
EN 20LC8.1U LA5.
5.6.6Start-up/Shut-down Flowcharts
On the next pages you will find start-up and shut-down
flowcharts, which might be helpful during fault finding.
POWER STATES
In this chassis, there are six possible power states as follows:
•Power OFF
•ON
•STANDBY
•SEMI-STANDBY
•Special Panel Mode
•PROTECTION
The following diagram gives an overview of the power states:
Service Modes, Error Codes, and Fault Finding
AC Mains OFF
Special
Panel
Mode
ERROR
detected
PROTECTION
PSU = STANDBY
LED1 = OFF
LED2 = BLINK
SDM && Panel
= LOW
ERROR
detected
ERROR
detected
Power
OFF
AC Mains ON
Last Status = ON
ONSTANDBY
PSU = ON
LED1 = ON
LED2 = OFF
STANDBY
Command
Figure 5-8 Power States
POWER OFF
In “Power OFF” mode, the system is completely switched “off”
from AC mains. When AC power is applied, the system checks
for last status. Depending on the last standby status stored in
the system EEPROM, this mode can then transit to “ON” or
“STANDBY” mode.
ON
This is the normal operating mode, indicated by the “on” LED.
All the power supply lines are available and depending on the
sub-mode, all the circuits in the system may be active. From
this mode it shall be possible to transit to “STANDBY”, “SEMISTANDBY” and “PROTECTION” mode, or to “Power OFF”
mode if AC mains are switched “off”. The sub-modes are:
•Active Mode (Normal Consumer Mode)
•Service Modes
•Panel Modes
•Factory Modes
STANDBY
The total power consumption of the system in this mode shall
be equal or less than 150 mW. This state is indicated by no
LED when AC mains is switched “on”. Only the standby
controller WT61P7 is operational in this state, where only
+3V3stby power supply is available. From this mode it shall be
possible to transit to the “ACTIVE” or “Power OFF” mode if AC
mains are switched “off”.
AC Mains OFF
AC Mains ON
Last Status = STANDBY
WAKEUP Command
Received
SEMI-
STANDBY
(Clock
Download)
PSU = STANDBY
LED1 = OFF
LED2 = OFF
Manual
Clock
Auto
Clock
SEMI-STANDBY
The semi-standby state is only accessed during transition from
ACTIVE to STANDBY when the auto clock feature is switched
“on”. The clock information download is carried out in this state
before proceeding to STANDBY.
SPECIAL PANEL MODE
The Special Panel Mode is only used during manufacturing
process to program the system EEPROM. In this mode, the
SDA0 and SCL0 ports of MT5382 are set to high impedance
after SDM and PANEL pins are both detected as “low” during
startup. This mode can be exited using a power recycle.
PROTECTION
This state is entered when an error has been detected at
startup or in the “ACTIVE” mode. All switched power supply
lines are turned “off” with only +3V3stby remaining “on”; similar
to “STANDBY” mode. This state is indicated by the blinking red
front LED with the blinking sequence denoting the type of error
detected.
When the system enters the protection mode due to a critical
error, it should be turned “off” and the failure cause needs to be
resolved. The system will function normally again after
performing a power recycling once all protection causing
failures have been resolved.
H_17740_033.eps
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Page 21
Service Modes, Error Codes, and Fault Finding
START-UP SEQUENCE
There are two cases of start-up sequences, namely:
•AC On and
•Standby Wake-up
AC ON
In the case of start-up from AC mains, all PSU voltages start to
turn “on” as the hardware default of the active “low” STANDBY
(controlled by Standby Controller WT61P7’s STANDBY signal)
signal to the PSU is pulled “low” with respect to ground.
The MT5382 starts running boot loader once the hardware
reset circuit is released. The system will then check the last
standby status from the system EEPROM to determine
whether to complete the system start-up (load image, turn on
the audio, display etc) or proceed to standby and wait for wakeup command from user. The Standby Controller then proceeds
to verify the power status of the +12V and sends the system to
protection in case of any failures. Special Panel, SDM, and
PANEL modes are detected as well.
EN 21LC8.1U LA5.
System recovery is always handled by Standby Controller.
Watchdog for MT5382 and MT8280 (if present) will be only
enabled during startup, and these components are able to
differentiate the normal startup and watchdog reset to trigger
system reset when applicable. The alive checking mechanism
kicks in after system startup is completed.
STANDBY WAKEUP
When the system receives a command to wake-up from
standby, the Standby Controller sets the STANDBY signal
“low” to turn “on” the switched power, and similarly detects for
the presence of +12V. The MT5382 waits for +3V3_SW to be
available before loading its image. The significance of this
voltage detection is due to the flash is also being powered by
the same mentioned voltage.
The following figure shows the start-up flowchart for both “AC
On” and “Standby Wake-up”:
Figure 5-9 Start-up flowchart
H_17740_034.eps
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Page 22
EN 22LC8.1U LA5.
Service Modes, Error Codes, and Fault Finding
STANDBY SEQUENCE
The following flowchart depicts the Standby (plus SemiStandby condition) sequence:
Set LED1 = OFF
START
Set Last Status = STANDBY
Disable RC/LKB Key
Instruct WT61P7
to turn off LED1
Stop Backlight Dimming,
PWM_DIMMING = 100%
Mute Audio, MUTEn = HIGH
Turn Off Backlight
BACKLIGHT_ON_OFF = LOW
AUTO-CLOCK
is ON?
T~200ms
YesSEMI-STANDBY
Enable RC/LKB Key
Yes
WT61P7 STANDBYn = LOW
Wait for Next Instruction
from MT5382
Proceed to
STANDBY?
No
Set LED1 = ON
MT5382WT61P7
No
Switch off LVDS Signal
Wait for Panel_Off_Time_2 based on
Panel ID in ms (from Panel Flash)
Turn Off LVDS Power,
LCD_PWR_ON = HIGH
PWM_Dimming = 0%
Disable DC_PROT &
POWER_DOWN INT
Pass Error Buffer, Clock Info and
CEC Information to WT61P7
Instruct WT61P7
to go to Standby
No
T~700ms
T~1200msT~1300ms
Start to Obtain Clock Info
from Selected Source
Clock
Download
Timeout =
3sec?
Yes
Disable RC/LKB Key
Set Last Status = ACTIVE
Instruct WT61P7
to turn on LED1
Disable RC/LKB Key
Turn On Backlight
BACKLIGHT_ON_OFF = HIGH
Display Startup Logo for 1sec
Set Back to Last Channel
Unmute Audio, MUTEn = LOW
No
Clock
Download
Complete?
Yes
No
Wakeup Event
Received?
Yes
Yes
WT61P7 blinks LED2
according to Error Buffer
Note
Blocking for
next startup
to ensure
PSU
properly
discharged
:
STANDBY due
to Protection?
No
Wait 3000ms
END
(STANDBY)
Figure 5-10 Standby flowchart
Enable RC/LKB Key
END
(Back to ON)
Note: Estimated running time.
Actual implementation to be verified.
H_17740_035.eps
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Page 23
Service Modes, Error Codes, and Fault Finding
s
8
POWERDOWN SEQUENCE
The following figure shows the power-down sequence
flowchart:
START
EN 23LC8.1U LA5.
POWER_DOWN INT
based on falling
edge trigger
Wait for
impending
Power Off
MT5382 Detects
POWER_DOWN INT
Reconfirm
POWER_DOWN
= LOW?
Ye s
Mute Audio Output
Write Protect Flash and
System EEPROM
System Idle
END
Note: To
No
Avoid False
Tr ig g e ri n g
H_17740_036.eps
240108
Figure 5-11 Power-down flowchart
The power-down condition is detected by the MT5382
POWER_DOWN signal which is an interrupt pin. A “low” level
on this line signifies that power-down is detected. The two
major activities that occur over this operation is the muting of
audio output and write protecting the system flash and
EEPROM.
DC PROTECTION
The following figure shows the DC_PROT interrupt flowchart:
START
Check
DC_PROT = LOW
for 3 sec?
Ye s
DC Protection
[Protection]
Mute Audio Output
Log Error Code
Go to STANDBY
END
Note: To
No
Avoid False
Tr ig g e ri n g
H_17740_037.ep
24010
Figure 5-12 DC Protection flowchart
Page 24
EN 24LC8.1U LA5.
Service Modes, Error Codes, and Fault Finding
5.7Software Upgrading
5.7.1Introduction
It is possible for the user to upgrade the main software via the
USB port. This allows replacement of a software image in a
stand alone set, without the need of an E-JTAG debugger. A
description on how to upgrade the main software can be found
in the DFU or on the Philips website.
5.7.2Main Software Upgrade
Automatic Software Upgrade
In “normal” conditions, so when there is no major problem with
the TV, the main software and the default software upgrade
LC08SSpUser software upgrade flow chart
A newer version of software is
detected.
Do you want to upgrade?
YESNO
See layout 1
An equal/older version of software is
detected.
Do you want to proceed?
Note: Should be done only if
necessary.
YESNO
See layout 2
Power off the set
Plug-in the USB
stick
Power- on the set
application can be upgraded with the “autorun.upg” (FUS part
in the one-zip file). This can also be done by the consumers
themselves, but they will have to get their software from the
commercial Philips website or via the Software Update
Assistant in the user menu (see DFU). The “autorun.upg” file
must be placed in the root of your USB stick.
How to upgrade:
1. Copy “autorun.upg” to the root of your USB stick.
2. Insert USB stick in the side I/O while the set is in “On”
mode. The set will restart and the upgrading will start
automatically. As soon as the programming is finished, you
will get the message that you can remove your USB stick
and restart the set.
Kindly remove the USB stick and
restart the set.
See layout 3
Software update failed!
Would you like to try again?
YESNO
See layout 4
Content browser
Photo & music
‘break-in’ and
check autorun fi le
Valid auto-r un
sw newer than
Prompt user to
See layout 1
N
Set re-start &
Proceed with sw
Detect USB
file?
Y
Is USB sw
version > set
sw?
Y
Display USB
the TV sw.
confirm
Proceed?
Y
upgrade
N
N
Is USB sw
version =< set
sw?
Y
Display USB
sw equal/older
than TV sw.
Prompt user to
confirm
See layout 2
Display
upgrade
progress
N
Content browser
Photo & music
Prompt user to
remove USB
and restart the
set
See layout 3
End
Y
Successful?
N
See layout 4
N
Prompt user to
try again?
Retry?
Figure 5-13 SW upgrade flowchart
Y
H_17740_038.eps
240108
Page 25
Service Modes, Error Codes, and Fault Finding
Manual Software Upgrade
In case that the software upgrade application does not start
automatically, you can also start it manually.
How to start the software upgrade application manually:
1. Disconnect the TV from the Mains/AC Power.
2. Press the “OK” button on a Philips DVD RC-6 remote
control (it is also possible to use the TV remote in “DVD”
mode). Keep the “OK” button pressed while reconnecting
the TV to the Mains/AC Power.
3. The software upgrade application will start.
Attention!
In case that you have started the download application
manually, the “autorun.upg” will maybe not be recognized.
What to do in this case:
1. Create a directory “UPGRADES” on your USB stick.
2. Rename the “autorun.upg” to something else, e.g. to
“software.upg”. Do not use long or complicated names,
keep it simple. Make sure that “autorun.upg” is no longer
present in the root of your USB stick.
3. Copy the renamed “upg” file into this directory.
4. Insert USB stick in the side I/O.
5. The renamed “upg” file will be visible and selectable in the
upgrade application.
Back-up Software Upgrade Application
If the default software upgrade application does not start (could
be due to a corrupted boot 2 sector) via the above described
method, you can try to activate the “back-up software upgrade
application”.
How to start the “back-up software upgrade application”
manually:
1. Disconnect the TV from the Mains/AC Power.
2. Press the “CURSOR DOWN” button on a Philips DVD RC6 remote control (it is also possible to use the TV remote in
“DVD” mode). Keep the “cursor down” button pressed
while reconnecting the TV to the Mains/AC Power.
3. The software upgrade application will start.
EN 25LC8.1U LA5.
5.7.3Content and Usage of the One-Zip Software File
Below you find a content explanation of the One-Zip file, and
instructions on how and when to use it.
•Ambi_clustername_version.zip. Not to be used by Service
technicians.
•Panel_clustername_version.zip. Not to be used by Service
technicians.
•EDID_clustername_version.zip. Contains the EDID
content of the different EDID NVMs. See ComPair for
further instructions.
•FUS_clustername_version.zip. Contains the “autorun.upg”
which is needed to upgrade the TV main software and the
software download application.
•ProcessNVM_clustername_version.zip. Default NVM
content. Must be programmed via ComPair.
Page 26
EN 26LC8.1U LA5.
Personal Notes:
Service Modes, Error Codes, and Fault Finding
E_06532_012.eps
131004
Page 27
Block Diagrams, Test Point Overview, and Waveforms
6.Block Diagrams, Test Point Overview, and Waveforms
Wiring Diagram 42” & 47” (ME8)
WIRING DIAGRAM 42”- 47” (STYLING ME8)
8K05
LVD S INPUT
41/51P
J2
7. GND
6. 3.3V
5. I2C SEL2
4. I2C SEL1
3. S-SDA
2. GND
1. S-SCL
J4
8. I2 C SEL2
7. 3.3V
6. GND
5. S-SDA
4. S-SCL
3. GN D
2. +24V
1. +24V
J1
4. GND
3. +2 4V
2. GND
1. +24V
*AMBI-LIGHT UNIT (IN BACK COVER)
(1175)
CONTROL BOARD TACT SW
(0025)
E
1N10
3P
1. GND
1M01
2. KEYBOARD
3. +3V3STBY
4. INTERRUPT
TO BACKLIGHT
DANGEROUS
HIGH VOLTAGE
CN2
1. HV1
2. N.C.
MAIN POWER SUPPLY
(1005)
8N10
DANGEROUS
HIGH VOLTAGE
3. HV 1
CN3
1. HV2
2. N.C.
3. HV 2
CN4
1. 24Vamb
2. GND
3. 24 Vamb
4. GND
5. 24Vamb
6. GND
CN6
1. 3V3ST
2. Standby
3. GN D
4. GND
5. GND
6. 12Vssb
7. 12Vssb
8. 12 Vssb
9. +12Vaud
10. GND_aud
11. -12Vaud
CN7
1. 12Vssb
2. 12Vssb
3. GN D
4. GND
5. INV-ON
6. DIM
7. BOOST
8. GN D
CN1
1. N
2. L
LCD DISPLAY (1004)
8K03
8101
8102
8408
INLET
8C02
8D03
27LC8.1U LA6.
8K04
8K01
8D02
Only for 100/120Hz
1D03 (B4D)
51P
1K01 (B6K)
7. GND
6. +3V3_SW
5. +3V3_FPGA
4. GND
3. AMBI_SDA
2. GND
1. AMBI_SCL
1K04 (B6K)
4. GND_24V
3. +24V_BOLT-ON
2. GND_24V
1. +24V_BOLT-ON
1K03 (B6K)
6. GND_24V
5. +24V_BOLT-ON
4. GND_24V
3. +24V_BOLT-ON
2. GND_24V
1. +24V_BOLT-ON
1101 (B1)
11. -12VAudio
10. GNDSND
9. +12VAudio
7. +12VS
6. +12VS
5. GND
4. GND
3. GND
2. STANDBY
1. +3V3STBY
1102 (B1)
8. ANA-DIG_DIM_SELECT
7. BACKLIGHT_BOOST
6. PWM_DIMMING
5. BACKLIGHT_ON_OFF
4. GND
3. GND
2. +12Vdisp
1. +12Vdisp
1C02 (B4C)
9. KEYBOARD
8. +5V_SW
7. KEYBOARD
6. LED1
5. +3V3STBY
4. LED2
3. IR
2. GND
1. LIGHT_SENSOR
1301 (B3)
4. RIGHT+
3. GND
2. GND
1. LEFT-
8301
1D02 (B4D)
41P
B
SSB
(1150)
1D01 (B4D)
41P
TO BACKLIGHT
J1
1. +24V
2. GND
3. +2 4V
4. GND
J4
1. +24V
2. +24V
3. GN D
4. S-SCL
5. S-SDA
6. GND
7. 3.3V
8. I2C SEL2
J2
1. S-SCL
2. GND
3. S-SDA
4. I2C SEL1
5. I2C SEL2
6. 3.3V
7. GND
*AMBI-LIGHT UNIT (IN BACK COVER)
(1175)
(5215) TWEETER
(5211) WOOFER IN BACK COVER
* AMBI-LIGHT UNITS ARE OPTIONAL
+ -
RIGHT SPEAKER
1P11
1. GND
IR LED PANEL
J
(1112)
2. KEYBOARD
3. +3V3STBY
4. TACT_SWITCH_INT
1P10
1. LIGHT-SENSOR
2. GNDSND
3. RC
4. LED2
5. +3V3-STAN D BY
6. LED1
7. KEYBOARD
8. +5V
9. KEYBOARD
+ -
LEFT SPEAKER
(5215) TWEETER
(5212) WOOFER IN BACK COVER
H_17740_056.eps
250108
Page 28
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Video
VIDEO
TUNER & DEMODULATOR
B2
1203
TDQU8-T01A
4MHZ-REFOUT
HYBRID
TUNER
IFAGC
A-IFOUT
DIFOUT1
DIFOUT1
28LC8.1U LA6.
MT5382
B4
7A01
MT5382
TUNER
CVBS
IF _AGC_MAIN
17
7200
EF
VIP_ATV
VIN_ATV
CVBS_OUT
9
6
7201
TDA9886T/V4
AIF
8
10
11
1204
1
45MHZ75
VIF1
1
5
2
VIF2
4
SIF1
SIF2
TAG C
+5VS
20
SUPPLY
SIF AGC
TUNER AGC
15
REF
DIDITAL VCO COTROLRC VCO
VIF-PLL
SOUND TRAPS
4.5 to 6.5 Mhz
DEMODULATOR
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER AND
AM-DEMODULATOR
VIF AGC
MAD
I2C-BUS TRANSCEIVER
SCL
(I2C)
SDA
AC26
AB24
AC24
B26
B4A
IF_AGC
B4F
CVBS0
ANALOG
VIP_ATV
VIN_ATV
ANALOG
I/O
MUX
B4D
LVD S OUT
B4D
LVD S
DUAL
FLASH &
NVM
GPIO0
GPIO1
D12
C12
DUAL LVDS
LVD S_TXo
LVD S_TXe
LVD S_TXe0p
LVD S_TXe0n
MJC MT8280 - LVDS
B5R
7P01
MT8280
AB14
0P
AA14
0N
MT8280
MOTION ESTIMATION
MOTION COMPENSATION
B4D
MT5382 - LVDS
LVD S_B_TXe
LVD S_B_TXo
QUAD LVDS
1920x1080
100/120HZ
LVD S_A_TXo
1D02
40
41
1D03
51
50
1
2
TO DISPLAY
Not used for
50/60Hz sets
MT5382 - HDMI & MUX
B4E
1
182
19
HDMI 2
CONNECTOR
1
182
19
HDMI 2
CONNECTOR
1
182
19
HDMI (SIDE)
CONNECTOR
1
182
19
HDMI 1
CONNECTOR
1E02
1E03
1E04
1E01
MT5382 - ANALOG I/O
B4F
1F01
1
3
4
6
7
9
10
12
1
3
4
6
7
9
10
12
1
3
4
6
7
9
10
12
1
3
4
6
7
9
10
12
RX2_2p
RX2_2n
RX2_1p
RX2_1n
RX2_0p
RX2_0n
RX2_Cp
RX2_Cn
RX3_2p
RX3_2n
RX3_1p
RX3_1n
RX3_0p
RX3_0n
RX3_Cp
RX3_Cn
RXSide_2p
RXSide_2n
RXSide_1p
RXSide_1n
RXSide_0p
RXSide_0n
RXSide_Cp
RXSide_Cn
AV1
AV2
AV3
SIDE
AV
Pr
Y
Pb
Pr
Y
Pb
VIDEO
SSVHS
VIDEO
SVHS
1F02
1F04
1F03
1
3
5
4
2
1F08
1F07
1
3
5
4
2
AV1_Pr_in
AV1_Y_in
AV1 _Pb_in
AV2_Pr_in
AV2_Y_in
AV2 _Pb_in
AV3_CVBS_in
AV3_SY_in
AV3_SC_in
SAV_CVBS_in
SAV_ SY_in
SAV_ SC_in
RX1_2p
RX1_2n
RX1_1p
RX1_1n
RX1_0p
RX1_0n
RX1_Cp
RX1_Cn
AE23
AD21
AE22
AD20
AF19
196
AD26
AF26
AE25
AE26
AF25
AE24
AF11
AE11
AF10
AE10
AF9
AE9
AF8
AE8
PR1P
Y1P
PB1P
PR0P
Y0P
PB0P
CVBS1
SY0
SC0
CVBS3
SY1
SC1
B4E
HDMI
& MUX
MT5382
MAIN PROCESSOR
VIDEO
B4B
XTALI
XTALO
DDR2
SDRAM
DDR2
205
204
RDQ(0-31)
RA
1201
14M31
(0-12)
(0-15)
(0-12)
(16-31)
B4B
7B02
EDE2516ACSE
SDRAM
7B03
EDE2516ACSE
SDRAM
MT5382 - DDR2 SDRAM
LVD S_A_TXe
B6K
FPGA
AMBI-LIGHT
(CONTROL)
VDISP
5
4
3
2
1
TO DISPLAY
RX2_2p
RX2_2n
RX2_1p
RX2_1n
RX2_0p
RX2_0n
RX2_Cp
RX2_Cn
RX3_2p
RX3_2n
RX3_1p
RX3_1n
RX3_0p
RX3_0n
RX3_Cp
RX3_Cn
7E18SII9185ACTU
28
27
25
24
R0X
22
21
19
18
48
47
45
44
R1X
42
41
39
38
HDMI
SWITCH
R2X
RXSide_2p
68
RXSide_2n
67
RXSide_1p
65
RXSide_1n
64
RXSide_0p
62
RXSide_0n
61
RXSide_Cp
59
RXSide_Cn
58
1
2
4
5
TX
7
8
10
11
HDMI_RESET
13
B4C
RXMux_2p
RXMux_2n
RXMux_1p
RXMux_1n
RXMux_0p
RXMux_0n
RXMux_Cp
RXMux_Cn
AF15
AE15
AF14
AE14
AF13
AE13
AF12
AE12
H_17740_057.eps
250108
Page 29
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Audio
AUDIO
TUNER & DEMODULATOR
B2
1203
TDQU8-T01A
9
IFAGC
A-IFOUT
1
182
19
HDMI 2
CONNECTOR
1
182
19
HDMI 2
CONNECTOR
1
182
19
HDMI (SIDE)
CONNECTOR
1
182
19
HDMI 1
CONNECTOR
RX2_2p
RX2_2n
RX2_1p
RX2_1n
RX2_0p
RX2_0n
RX2_Cp
RX2_Cn
RX3_2p
RX3_2n
RX3_1p
RX3_1n
RX3_0p
RX3_0n
RX3_Cp
RX3_Cn
6
8
28
27
25
24
22
21
19
18
48
47
45
44
42
41
39
38
1E02
1
3
4
6
7
9
10
12
1E03
1
3
4
6
7
9
10
12
1E04
1
3
4
6
7
9
10
12
1E01
1
3
4
6
7
9
10
12
7E18SII9185ACTU
R0X
R1X
4MHZ-REFOUT
HYBRID
TUNER
MT5382 - HDMI & MUX
B4E
AIF
SWITCH
1
HDMI
1204
45MHZ75
R2X
4
TX
5
7201
TDA9886T/V4
VIF1
1
2
VIF2
SIF1
SIF2
TAG C
RX2_2p
RX2_2n
RX2_1p
RX2_1n
RX2_0p
RX2_0n
RX2_Cp
RX2_Cn
RX3_2p
RX3_2n
RX3_1p
RX3_1n
RX3_0p
RX3_0n
RX3_Cp
RX3_Cn
RXSide_2p
RXSide_2n
RXSide_1p
RXSide_1n
RXSide_0p
RXSide_0n
RXSide_Cp
RXSide_Cn
68
67
65
64
62
61
59
58
1
2
4
5
7
8
10
11
13
RXSide_2p
RXSide_2n
RXSide_1p
RXSide_1n
RXSide_0p
RXSide_0n
RXSide_Cp
RXSide_Cn
HDMI_RESET
+5VS
20
SUPPLY
SIF AGC
TUNER AGC
B4C
15
REF
DIDITAL VCO COTROLRC VCO
VIF-PLL
SOUND TRAPS
4.5 to 6.5 Mhz
IF-PLL DEMODULATOR
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER AND
AM-DEMODULATOR
VIF AGC
MT5382 - ANALOG I/O
B4F
AUDI O
AV1
L/R IN
AUDI O
AV2
L/R IN
AUDI O
AV3
L/R IN
AUDI O
PC
L/R IN
AUDI O
DIGITAL
SPDIF
AUDIO IN
AUDI O
SIDE
L/R IN
AV
MAD
I2C-BUS TRANSCEIVER
SCL
SDA
1F01
1F02
1F04
1F05
1F05
1F08
CVBS
SIOMAD
IF _AGC_MAIN
12
RX1_2p
RX1_2n
RX1_1p
RX1_1n
RX1_0p
RX1_0n
RX1_Cp
RX1_Cn
RXMux_2p
RXMux_2n
RXMux_1p
RXMux_1n
RXMux_0p
RXMux_0n
RXMux_Cp
RXMux_Cn
SIF_OUT
AV1_L_in
AV1_R_in
AV2_L_in
AV2_R_in
AV3_L_in
AV3_R_in
PC_L_in
PC_R_in
SAV_R_in
SAV_L_in
SAV_R_in
B4
AC26
K24
AF11
AE11
AF10
AE10
AF9
AE9
AF8
AE8
AF15
AE15
AF14
AE14
AF13
AE13
AF12
AE12
B26
K25
K26
L23
L24
J23
J24
K23
J25
J26
MT5382
7A01
MT5382
B4A
IF_AGC
CVBS0
B4F
AIN3_L
AIN3_R
AIN4_L
AIN4_R
AUDI O
IN
AIN0_L
AIN0_R
AIN2_L
AIN2_R
B22
AIN1_L
AIN1_R
B4E
HDMI
SWITCH
29LC8.1U LA6.
TUNER
ANALOG
I/O
HDMI
& MUX
MT5382
MAIN PROCESSOR
AUDIO
DDR2
B4B
SDRAM
DDR2
ANALOG
B4F
I/O
AUDIO_OUT
B4C
OPCTRL1
PHERIPHERAL
OPCTRL3
OPCTRL5
AOSDATA3
FLASH
& NVM
AL1
AR1
AL2
AR2
RDQ(0-31)
F26
G25
AC14
AC7
AC13
E26
F25
A25
MT5382 - DDR2 SDRAM
B4B
(0-12)
(0-15)
(0-12)
RA
(16-31)
MT5382
B4F
ANALOG I/O
7F04-1
7F04-2
B4E
7F03-1
7F03-2
7B02
EDE2516ACSE
SDRAM
7B03
EDE2516ACSE
SDRAM
B3
POWER_DOWN
CLASS-D & MUTING
PreAmpL
PreAmpLR
7303
MUTEn
HP_L
HP_R
ANTI_PLOP
B4C
FAST_PLOP
B4E
6303
6302
MUTING
CIRCUIT
7308
7301
TDA8932BTW/N2
2
IN1P
CLASS D
AUDI O
AMPLIFIER
14
IN2N
5
ENGAGE
OUT1
OUT2
B4F
27
22
DC-PROT
MT5382
ANALOG I/O
HP_LOUT
HP_ROUT
HP_DETECT
LEFT-
RIGHT+
7306
7307
DC
DETECTION
1E15
2
3
4
1301
Speaker L
1
2
Speaker R
3
4
Headphone
Out 3.5mm
H_17740_058.eps
250108
Page 30
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Control & Clock Signals
CONTROL + CLOCK SIGNALS
B5Q
MJC MT8280 - DDR2
B5
MJC MT8280
7P01
MT8280
POWER
B5R
MT8280
POWER
B5P
MEM_VREF
7Q01
EDD2516AETA
7Q02
EDE5116AJBG
DDR
SDRAM
MJC_VREF
E
KEYBOARD CONTROL
ON / OFF
CHANNEL +
CHANNEL -
VOLUM E +
VOLUM E -
MENU
J
LED PANEL
+5V_SW
+3V3STBY
+3V3STBY
+5V_SW
B4B
DDR2
B5Q
MJC_RDQ(0-31)
MJC_R4(0-12)
J8
MJC_RCLK0
K8
MJC_RCLK0n
MJC_RCLK1
J8
MJC_RCLK1n
K8
J2
1N16
1N11
1N12
1N14
1N15
1N13
6P11
3P11
6P10
3P10
7P14
3P16
7P12
LED1
WHITE
LED2
RED
IR
RECEIVER
F2
F1
AB6
AA6
7P10
+5V_SW
7P13
KEYBOARD
7P11
+3V3STBY
LIGHT_SENSOR
AB11
AA11
AB17
AA17
A12
B12
A18
B18
F22
F21
M22
M21
V21
V22
W16
A8
D8
A7
B8
Y18
W18
Y6
V17
KEYBOARD
LED1
LED2
+5V_SW
1P01
IR
LVD S_TXoCLKp
LVD S_TXoCLKn
LVD S_TXeCLKp
LVD S_TXeCLKn
LVD S_A_TXoCLKp
LVD S_A_TXoCLKn
LVD S_A_TXeCLKp
LVD S_A_TXeCLKn
LVD S_B_TXoCLKp
LVD S_B_TXoCLKn
LVD S_B_TXeCLKp
LVD S_B_TXeCLKn
27M
FLASH_MJC_WE
SF_S0
SF_CK
SF_CS0
SF_DO
PWN
PRST
8280_DETECT
INT0
1N10
1P11
1P10
4
4
7
6
4
3
5
8
1
LVD S_A
TO 1D03
LVD S CONN.
TO 1D02
LVD S CONN.
7P02
M25P16-VMF6P
9
2Mx8
FLASH
15
16
7
8
B4C
MT5382 - FLASH & NVM
1C02
7
6
4
3
5
8
1
B4D
B4D
LED1
LED2
+3V3STBY
+5V_SW
B6K
FPGA - AMBILIGHT
7K01
MT8280
AMBI FPGA
H16
H15
B4F
MT5382 - ANALOG I/O
1F10
4
3
2
4 3 21
1
USB 2.0
CONNECTOR
SIDE
KEYBOARD
7E25
7E26
LIGHT-SENSOR
IR
B3
(AUDIO)
30LC8.1U LA6.
TO 1D01
LVD S CONN.
J15
J16
nCSO
F4
DCLK
D8
ASD0
C3
DATA 0
F1
H2
AMBI_SDA
N2
AMBI_SCL
P3
B4E
B4D
7K02
EPCS4SI8N
1
FLASH
6
5
2
1K05
3
27M
AMBI-LIGHT
1F13
HEAD-PHONE
CONNECTOR
7F01
TPS2041BD
6
7
8
+5V_SW
2
4
5
PWN
PRST
8280_DETECT
INT0
DC_PROT
KEYBOARD
LIGHT-SENSOR
IR
MT5382 - FLASH & NVM
7E23
WT61P7-RG440WT
19
24
STANDBY
CONTROLLER
25
9
LVD S_TXeCLKp
LVD S_TXeCLKn
LVD S_TXoCLKp
LVD S_TXoCLKn
I2C TO
MODULE
USB_DP
USB_DM
HP_DETECT
USB_PWE
USB_OC
4
3
10
35
41
11
B4C
(I2C)
7E07
CEC
12M
B4
D15
C15
B14
A14
AF3
AE3
A25
AA4
B19
C19
A18
B18
V25
V25
U24
AC13
AB14
MT5382
7A01
MT5382
LVD S
B4D
DDR2 SDRAM
B4B
MT5382
POWER & TUNER
B4A
ANALOG I/O
B4F
FLASH &
B4C
NVM
Y5
7E27
POWER_DOWN
STANDBY
STANDBYn
FAST_PLOP
K3
K2
AC2
AC1
4
C23
B24
B25
D22
E20
Y26
W25
AD1
AE4
AE3
AD4
D20
AD7
AE1
E9
C11
D10
E19
B10
AB14
D11
B10
B10
D20
FLASH_WE
1C04
B1
B3
B3
B4B
RDQ(0-31)
RA(0-12)
RCLK0
RCLK0n
RCLK1
RCLK1n
B4C
60M
MT5382 - DDR2 SDRAM
7B02
EDE2516ACSE
7B03
EDE2516ACSE
DDR
SDRAM
J8
K8
J8
K8
J2
MT5382 - FLASH & NVM
ANA-DIG_DIM_SELECT
7C05
7C01
M25P64-VMF6TP
2
PDD1
POOEn
POCE0n
PDD0
7C04
8Mx8
15
FLASH
16
7
8
BACKLIGHT_BOOST
2C39
2C38
SDM
7B01
LP2996M
DDR
TERMINATION
REGULATOR
MEM_VREF
LCD_PWR_ON
+12Vdisp_DETECT
PWM_DIMMING
EDID_WE
HDMI_HPD_1
HDMI_HPD_2
HDMI_HPD_3
HDMI_HPD_SIDE
HDMI_RESET
CEC
DDC_RESET
MUTEn
ANTI_PLOP
POWER_DOWN
4
MEM_VREF
B4D
B1
B1
B1
B1
B4E
B4E
B4E
B4E
B4E
B4E
B4E
B4E
B3
B3
B3
SUPPLY
TO HDMI
CONNECTOR
AUDI O
H_17740_059.eps
B5Q
250108
Page 31
Block Diagrams, Test Point Overview, and Waveforms
SRP (Service Reference Protocol) is a software tool that creates a list with all references to signal lines. The list contains
references to the signals within all schematics of a PWB. It replaces the text references currently printed next to the signal
names in the schematics. These printed references are created manually and are therefore not guaranteed to be 100%
correct. In addition, in the current crowded schematics there is often none or very little place for these references.
Some of the PW
B schematics will use SRP while others will still use the manual references. Either there will be an SRP
reference list for a schematic, or there will be printed references in the schematic.
There are several different signals available in a schematic:
All power supply lines are available in the supply line overview (see chapter 6). In the schematics (see chapter 7) is not
indicated where supplies are coming from or going to.
It is however indicated if a supply is incoming (created elsewhere), or outgoing (created or adapted in the current schematic).
Outgoing Incoming
+5V+5V
For normal signals, a schematic reference (e.g. B14b) is placed next to the signals.
B14b
signal_name
For normal and special grounds (e.g. GNDHOT or GND3V3 etc.), nothing is indicated.
SRP is a tool, which automatically creates a list with signal references, indicating on which schematic the signals are used.
A reference is created for all signals indicated with an SRP symbol, these symbols are:
+5V+5V
namename
namename
Power supply line.
Stand alone signal or switching line (used as less as possible).
Signal line into a wire tree.
namename
Switching line into a wire tree.
name
Bi-directional line (e.g. SDA) into a wire tree.
name
Signal line into a wire tree, its direction depends on the circuit (e.g. ingoing for PDP, outgoing for LCD sets).
Remarks:
• When there is a black dot on the "signal direction arrow" it is an SRP symbol, so there will be a reference to the signal
name in the SRP list.
• All references to normal grounds (Ground symbols without additional text) are not listed in the reference list, this to keep
it concise.
• Signals that are not used in multiple schematics, but only once or several times in the same schematic, are included
in the SRP reference list, but only with one reference.
Additional Tip:
When using the PDF service manual file, you can very easily search for signal names and follow the signal over all the
schematics. In Adobe PDF reader:
• Select the signal name you want to search for, with the "Select text" tool.
• Copy and paste the signal name in the "Search PDF" tool.
• Search for all occurrences of the signal name.
• Now you can quickly jump between the different occurrences and follow the signal over all schematics. It is advised to
"zoom in" to e.g. 150% to see clearly, which text is selected. Then you can zoom out, to get an overview of the complete
schematic.
PS. It is recommended to use at least Adobe PDF (reader) version 6.x, due to better search possibilities in this version.
Note: Figures below can deviate slightly from the actual
situation, due to the different set executions.
General: The Service Default Mode (SDM) and Service
Alignment Mode (SAM) are described in chapter 5. Menu
navigation is done with the CURSOR UP, DOWN, LEFT or
RIGHT keys of the remote control transmitter.
8.1General Alignment Conditions
Perform all electrical adjustments under the following
conditions:
•Power supply voltage (depends on region):
– AP-NTSC: 120 V
– AP-PAL-multi: 120 - 230 V
– EU: 230 V
AC
– LATAM-NTSC: 120 - 230 V
– US: 120 V
AC
or 230 VAC / 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
/ 50 Hz (± 10%).
AC
/ 60 Hz (± 10%).
•Connect the set to the mains via an isolation transformer
with low internal resistance.
•Allow the set to warm up for approximately 15 minutes.
•Measure voltages and waveforms in relation to correct
ground (e.g. measure audio signals in relation to
AUDIO_GND).
Caution: It is not allowed to use heatsinks as ground.
•Test probe: Ri > 10 Mohm, Ci < 20 pF.
•Use an isolated trimmer/screwdriver to perform
alignments.
8.2Hardware Alignments
There are no hardware alignments foreseen for this chassis.
8.3Software Alignments
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 “128”) 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 color Temperatures that need
to be aligned.
•Select “Store” in the “RGB Align” menu to store the aligned
values to the NVM.
Table 8-1 White D alignment values
Value
Cool
(11500 K)
Normal
(9000 K)
Warm
(6500 K)
x0.2760.2890.314
y0.2770.2910.319
If you do not have a color analyzer, you can use the default
values. This is the next best solution. The default values are
average values coming from production (statistics).
•Set the “R/G/B Gain” default values per temperature
according to the values in the “Tint settings” table.
•Select “Store” in the “RGB Align” menu to store the aligned
values to the NVM.
Table 8-2 Tint settings
Alignment42"47"
WARM_RED128*128*
WARM_GREEN 120*120*
WARM_BLUE110*110*
NORMAL_RED125*125*
NORMAL_GREEN128*128*
NORMAL_BLUE120*120*
COOL_RED110*110*
COOL_GREEN118*118*
COOL_BLUE140*140*
With the software alignments of the Service Alignment Mode
(SAM), the RGB alignments can be performed:
•white tone (warm, normal, cool)
•black level offset
8.3.1RGB Alignment
Before alignment, in customer menu, choose “Movie” as
predefined picture and sound setting (“Auto Mode” button on
RC). Also in menu “TV menu” > “TV settings” > “Picture”, set
•“Active Control” to “Off”
•“Color Enhancement” to “Off”
•“Dynamic Contrast” to “Off”
•“DNR” to “Off”.
White Tone Alignment:
•Activate SAM
•Select “RGB Align”
•Use a 75% white screen (Fluke 54200) or “Flat73”
(Quantum Data 802BT) as input signal and set the
following values:
– All “R/G/B Gain” values initial to “128” (maximum).
– All “R/G/B Offset” values (blacklevel) to “0”.
In case you have a color analyzer:
•Measure with a calibrated (phosphor- independent) color
analyzer (e.g. Minolta CA-210) in the centre of the screen.
Note: *These values were not available at the time of writing,
therefore they come from an early production sample (for
indication only). As soon as the production data become
available, a Service Info or Service Manual update will be
issued via the appropriate channels.
Black Level Offset Alignment
•Activate SAM.
•Select “RGB Align” and choose a temperature.
•For each temperature, the “R/G/B Offset” value should be
set to “0”.
•Select “Store” in the “RGB Align” menu to store the aligned
values to the NVM.
Page 66
8.4Option Settings
8.4.1Introduction
The microprocessor communicates with a large number of I
ICs in the set. To ensure good communication and to make
digital diagnosis possible, the microprocessor has to know
which ICs to address. The presence/absence of these specific
ICs (or functions) is made known by the option codes.
Notes:
•After changing the option(s), save them with the “Store”
command.
•The new option setting becomes active after the TV is
switched "off" and "on" again with the mains switch (the
NVM 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...OP10“ 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 ten
option bytes (OP1... OPA).
Activate SAM and select “Options”. Now you can select the
option byte (OP#1.. OP#A) 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 code
overview“. For more detailed information, see the next tables
“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.
Note: *for 42PFL7x03D/27, in future releases of the software,
the display code will be changed into “142” for the same panel.
Check the Philips Service website for details.
Page 67
Alignments
Option Bit Overview
Below find an overview of the Option Codes on bit level.
Table 8-4 Option codes at bit level (OP1-OP4)
Option Byte & BitDec. ValueOption NameDescription
Byte OP1
Bit 7 (MSB)128OPC_MT8280ON = MT8280 is available
Bit 664OPC_VIRGIN_MODEON = Virgin Mode (PNP) is available
Bit 532OPC_AMBILIGHT_20 = AmbiLight is not available
Bit 416OPC_AMBILIGHT
Bit 38OPC_MJC_120HZ_20 = MJC (120Hz) is not available
Bit 24OPC_MJC_120HZ
Bit 12OPC_MJC_60HZON = MJC (60Hz) is available
Bit 0 (LSB)1OPC_PHILIPSON = Philips set
Byte OP2
Bit 7 (MSB)128ReservedNot Used (Reserved)
Bit 664OPC_SHOP_MODEON = Shop mode is available
Bit 532OPC_LIGHT_SENSOR ON = Light Sensor is available (ActiveControl=OFF, ON, ON w Light sensor)
Bit 416OPC_BACKLIGHT_BOOSTON = Backlight boosting is available
Bit 38OPC_BACKLIGHT_DIMMINGON = Backlight Dimming is available
Bit 24ReservedNot Used (Reserved)
Bit 12OPC_BBDON = Black Bar Detection is available
Bit 0 (LSB)1OPC_WIDE_SCREENON = TV is 16x9 set
Byte OP3
Bit 7 (MSB)128OPC_HDMI_EASYON = HDMI Easy is available (Provision)
Bit 664OPC_CECON = CEC is available
Bit 532OPC_EPGON = EPG is available (Provision)
Bit 416OPC_VCHIPON = VChip is available (Provision)
Bit 38OPC_VIEW_FOR_YOUON = View for you feature is available
Bit 24OPC_STEREO_DBXON = Stereo DBX detection is available (Provision)
Bit 12OPC_LIP_SYNCON = Lip Sync is available
Bit 0 (LSB)1ReservedNot Used (Reserved)
Byte OP4
Bit 7 (MSB)128OPC_SideAV_SVHS ON = SideAV SVHS is available
Bit 664OPC_SideAV_CVBS ON = SideAV_CVBS is available
Bit 532OPC_AV3_SVHS ON = AV3_SVHS is available
Bit 416OPC_AV3_CVBSON = AV3_CVBS is available
Bit 38OPC_CVI2ON = CVI2 is available
Bit 24OPC_REGION_30 = NFATA
Bit 12OPC_REGION_2
Bit 0 (LSB)1OPC_REGION
OFF = MT8280 is not available, i.e. DFI is used in case 120Hz (MJC) is enabled
OFF = Virgin Mode (PNP) is not available
1 = Mono AmbiLight is available
2 = Stereo AmbiLight is available
3 = Reserved
1 = MJC (120Hz) for 768p is available (OP11 must ON too)
2 = MJC (120Hz) for 1080p is available (OP11 must ON too)
3 = Reserved
OFF = MJC (60Hz) is not available
OFF = Magnavox set
OFF = Shop mode is not available
OFF = Light Sensor is not available (ActiveControl=OFF, ON)
OFF = Backlight boosting is not available
OFF = Backlight Dimming is not available
OFF = Black Bar Detection is not available
OFF = TV is 4x3 set (Provision)
OFF = HDMI Easy is not available (Provision)
OFF = CEC is not available
OFF = EPG is not available (Provision)
OFF = VChip is not available (Provision)
OFF = View for you feature is not available
OFF = Stereo DBX detection is not available (Provision)
Bit 664OPC_MULTIMEDIA_PLAYERON = MultiMedia feature(i.e. Photo viewer & MP3 player) is available
Bit 532OPC_ECO_VIEW_MODE_DEMOON = Eco view mode demo is available
Bit 416OPC_AMBILIGHT_DEMOON = Ambilight demo is available
Bit 38OPC_SS_DEMOON = Split Screen Demo is available
Bit 24OPC_MP_ALIGNON = Using multi-point alignment for Gamma & White point (Provision)
Bit 12OPC_SYS_RECVRYON = System Recovery is available
Bit 0 (LSB)1ReservedNot Used (Reserved)
Byte OP7
Bit 7 (MSB)128ReservedNot Used (Reserved)
Bit 664ReservedNot Used (Reserved)
Bit 532ReservedNot Used (Reserved)
Bit 416ReservedNot Used (Reserved)
Bit 38ReservedNot Used (Reserved)
Bit 24ReservedNot Used (Reserved)
Bit 12ReservedNot Used (Reserved)
Bit 0 (LSB)1ReservedNot Used (Reserved)
Byte OP8
Bit 7 (MSB)128ReservedNot Used (Reserved)
Bit 664ReservedNot Used (Reserved)
Bit 532ReservedNot Used (Reserved)
Bit 416ReservedNot Used (Reserved)
Bit 38ReservedNot Used (Reserved)
Bit 24ReservedNot Used (Reserved)
Bit 12ReservedNot Used (Reserved)
Bit 0 (LSB)1ReservedNot Used (Reserved)
Byte OP9
Bit 7 (MSB)128ReservedNot Used (Reserved)
Bit 664ReservedNot Used (Reserved)
Bit 532ReservedNot Used (Reserved)
Bit 416ReservedNot Used (Reserved)
Bit 38Tuner Profile_30 = US_ALPS TDQU
Bit 24Tuner Profile_2
Bit 12Tuner Profile_1
Bit 0 (LSB)1Tuner Profile_0
Byte OPA
Bit 7 (MSB)128ReservedNot Used (Reserved)
Bit 664ReservedNot Used (Reserved)
Bit 532ReservedNot Used (Reserved)
Bit 416Cabinet Profile_40 = Cabinet_Profile_0_42_ME8
Bit 38Cabinet Profile_3
Bit 24Cabinet Profile_2
Bit 12Cabinet Profile_1
Bit 0 (LSB)1Cabinet Profile_0
OFF = HDMI5 is not available
OFF = HDMI4 is not available
OFF = HDMI3 is not available
OFF = VGA is not available
OFF = MultiMedia feature(i.e. Photo viewer & MP3 player) is not available
OFF = Eco view mode demo is not available
OFF = Ambilight demo is not available
OFF = Split Screen is not available
OFF = Using old way for Gamma (pre-defined) & White point alignment (Provision)
OFF = System Recovery is not available
1 = Not Used (Reserved)
2 = Not Used (Reserved)
3 = Not Used (Reserved)
4 = Not Used (Reserved)
5 = Not Used (Reserved)
6 = Not Used (Reserved)
7 = Not Used (Reserved)
8 = Not Used (Reserved)
9 = Not Used (Reserved)
10 = Not Used (Reserved)
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 69LC8.1U LA9.
Index of this chapter:
9.1 Introduction
9.2 LCD Power Supply
9.3 DC/DC converters
9.4 Front-End
9.5 Video Processing
9.6 Audio Processing
9.7 HDMI
9.10 Abbreviation List
9.11 IC Data Sheets
Notes:
•Only new circuits (circuits that are not published recently)
are described.
•Figures can deviate slightly from the actual situation, due
to different set executions.
•For a good understanding of the following circuit
descriptions, please use the Wiring, Block (chapter 6) and
Circuit Diagrams (chapter 7). Where necessary, you will
find a separate drawing for clarification.
9.1Introduction
The LC8.1U chassis (development name “LC08SP”) is a newly
developed platform using a “Mediatek” chipset. It covers
screen sizes of 32" upto 57" with a new styling called “ME8”
and “MAG8”.
Some key components are:
•Main processor (MT5382): audio/video processing
•Motion estimation/compensation engine (MT8280) (in
some sets)
•FPGA; I
2
C output to AmbiLight modules (in some sets)
•HDMI demultiplexer (SIL9185) for driving 4 HDMI
connectors
•Standby controller (WT61P7) for overall power
management
•Analog IF-PLL demodulator (TDA9886)
•Audio class-D amplifier (TDA8932).
9.1.1Features
•Hybrid NTSC/ATSC tuner
•3+1 HDMI v1.3, supporting CEC
•USB 2.0
•Digital Natural Motion (DNM) (in some sets)
•Double Frame Rate (120 Hz) (in some sets)
•2-sided AmbiLight (in some sets)
•PSU directly drives the backlight units (no inverters
needed).
9.1.2LC08SP Architecture Overview
For details of the chassis block diagrams refer to chapter
“Block diagrams, Test Point Overview, and Waveforms”. An
overview of the LC08SP architecture can be found below.
Tuner
Alps TDQU
SAW Filter
Digital IF
TDA9886
AV1 (YPbPr + LR)
AV2 (YPbPr + LR)
AV3 (CVBS/YC + LR)
SideAV (CVBS/YC + LR)
UART (via Headphone)
PC LR
SPDIF Output
Headphone Output
HDMI1
HDMI2
HDMI3
HDMI4
USB
DDR2
DDR2
Flash
NVM
JTAG
MUX
uP
MT5382
HP
Amp
Audio Amp
TDA8932
Speaker
Front
PSU2
PSU1
12V
VIF
SIF
OPTIONAL
AMBI
JTAG
DDR2
DDR2
NCP5422
NCP5422
Flash
MT8280
Flash
Ambi FPGA
EP2C5
+5V_SW
+3V3_SW
+1V8_SW
+1V1_SW
Output up to
Quad LVDS
1920x1080p
100/120Hz
Output up to
Dual LVDS
1920x1080p
50/60Hz
BD25KA5FP+2V5
TPS74801+1V2
L78M05CDT+5Vtuner
LVDS3
LVDS2
LVDS1
H_17740_046.eps
Or
240108
Figure 9-1 Architecture of LC08SP
Page 70
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.1.3SSB Cell Layout
DC - DC CONVERSION
DOUBLE
FRAME
RATE
FLASH MEMORY
DDR
FPGA
AMBI
LIGHT
MAIN VIDEO/
AUDI O
PROCESSING
SAW
HYBRID TUNER
iTV
CHANNEL
DECODER
FOR FUTURE USE
MPEG2
DECODER/
ENCODER
EN 70LC8.1U LA9.
AUDIO CLASS - D
9.2LCD Power Supply
The Power Supply Unit (PSU) in this chassis is a buy-in 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 “Delta” PSU (DSP-182CP A)
•42" sets use an “LG” PSU (LGIT PLHL-T721A or -T720A)
•47" sets use an “LG” PSU (LGIT PLHL-T722A)
•52" sets use a “Delta” PSU (DSP-411AP A).
All Power Supply Units deliver the following voltages to the
chassis:
•High voltage to drive the backlight units (no inverters
needed)
•+3V3
•+12 V
•+12 V
•+12 V to DC-DC converters to SSB
•+12 V to Bolt-on Supply (where applicable) to SSB
•+24 V to Bolt-on Supply (where applicable) to SSB.
STBY
display
audio
to SSB
to SSB
and -12 V
audio
to SSB
Figure 9-2 SSB top view
9.3DC/DC converters
HDMI
DEMULTI
PLEXER
H_17740_045.eps
250108
On-board DC-DC converters convert the +12 V coming from
the PSU and deliver the following voltages:
•+5 V (+5V
tuner
)
•+5 V (+5V_SW)
•+3.3 V (+3V3_SW)
•+2.5 V (+2V5)
•+1.8 V (+1V8_SW)
•+1.1 V (+1V1_SW)
•+1.2 V (+1V2)
The power supply system consists on standby, switched, and
regulated voltages. The Standby voltage, +3V3STBY, will be
available once AC supply is provided to the system. As for the
other voltages, namely switched and regulated voltages, these
are available once STANDBY signal is pulled “low” to allow
other supplies from the PSU to turn “on”. The switched supplies
are generated from the main +12V supply, while the regulated
supplies are derived from the switched supplies.
There are a number of detection circuits to detect the following
supplies; +12V, +12Vdisp and +3V3_SW. The +12V is the
main supply voltage from the PSU that enables the switched
voltages to be generated. The +12Vdisp is the supply to the
display timing controller, while the +3V3_SW is powering the
microprocessor and its flash memory.
Page 71
Circuit Descriptions, Abbreviation List, and IC Data Sheets
The following diagram shows the power supply architecture of
the SSB:
TUNER CLK
TUNER SDA
EN 71LC8.1U LA9.
+3V3-Standby
+12V (TCON)
+12V
L5973D
(provision)
L78M05DCT
(provision)
DC-DC
NCP5422ADR26
DC-DC
NCP5422ADR26
BD25KA5WFP-E2
TPS74801DRCR
STANDBY (from WT61P7)
POWER_DOWN (to MT5382 and WT61P7)
PWRDET (to MT5382)
+12Vdisp_DETECT (to MT538
Figure 9-3 Power Supply Architecture
+3V3STBY
+12VAudio+12VSND
-12VAudio-12VSND
+VDISP
+5Vtuner
+5V_SW
+3V3_SW
+2V5
+1V1_SW
+1V8_SW
+1V2
+24Vbolt-on+24V
+12Vbolt-on+12Va
2) RES
H_17740_032.eps
230108
TDQU ALPS
TUNER
1110954
S
ANALOG
IF
IF-AGC
1
ANALOG
SAW
M1971
VIF1
4
VIF2
5
1
2
TDA9886
TUNER SDA
TUNER CLK
DIF1
DIF2
17
12
Figure 9-4 Front-end implementation
CVBS
2nd SIF
4.5MHz
C24 D2311 10
AC24
P25/24
MT5382
AC24
AB24
H_17740_047.eps
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Control Signal Functions:
•STANDBY: Control of PSU to enable switched supplies,
active “low”, by Standby Controller WT61P7.
•POWER_DOWN: Signal to detect +12V presence, active
“high”.
•PWRDET: Signal to detect +3V3_SW presence for
MT5382 operation, ADC operation.
•+12Vdisp_DETECT: Signal to detect +12Vdisp presence,
active “high”.
9.4Front-End
All sets in this chassis use the “Alps TDQU” hybrid tuner. Refer
to diagram B2 for details.
For analog reception, the signal from the tuner is processed by
the MT5382 Main Processor via the M1971 SAW filter and
TDA9886 Analog IF-PLL demodulator.
For digital reception, the signal from the tuner is processed
directly by the MT5382 Main Processor.
In future ITV implementations, the MT5112 Channel Decoder
and ProIdiom MPEG2 decoder/encoder will be added (not
implemented in this chassis).
Refer to figure “Front-end implementation” for details.
Page 72
Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 72LC8.1U LA9.
9.5Video Processing
Both audio and video signals are processed by the MT5382
audio/video processor. Refer to diagram B4 for details.
In basic sets (sets without DNM/AmbiLight), the video signal is
fed directly to the panel via an LVDS connector. Refer to figure
“Video processing - basic sets” for details.
Figure 9-5 Video processing - basic sets
In sets which support DNM/AmbiLight, the signal coming from
the MT5382 audio/video processor is fed to the MT8280 motion
engine with double frame rate output (120 Hz). Refer to
Figure 9-6 Video processing - DNM+AmbiLight using MT8280 Motion Engine
H_17740_048.eps
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diagram B5R and figure “Video processing - DNM+AmbiLight
using MT8280 Motion Engine)” for details.
H_17740_049.eps
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Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 73LC8.1U LA9.
9.6Audio Processing
Both audio and video signals are processed by the MT5382
audio/video processor. Refer to diagram B4 for details.
For the audio processing inside the audio/video processor,
refer to figure “Functional blocks audio processing MT5382
audio/video processor” for details.
For the implementation of the MT5382 audio/video processor
for audio processing, refer to figure “Audio processing”.
Figure 9-8 Audio processing
H_17740_051.eps
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Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 74LC8.1U LA9.
9.7HDMI
The MT5382 audio/video processor has three built-in HDMI
receivers. An external HDMI switch (SIL 9185) has been added
to support a 4th HDMI connector.
The HDMI implementation supports CEC. The standby
controller WT61P7 ensures CEC is also supported when set is
in standby mode. Refer to figure “HDMI implementation” for
details.
Note: if on one of the HDMI inputs a DVI signal is connected,
the analog audio inputs near the HDMI3 connector are
automatically selected as audio input source.
9.8AmbiLight
The AmbiLight units are located in the back cover. Refer to
figure “AmbiLight implementation” for details.
AL- Left
8p daisy chain (J4)
7p control (J2)
4p Power (J1)
1K04
1K01
SSB
Figure 9-9 HDMI implementation
9.9Control Signal Description
AL-Right
J4
H_17740_052.eps
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For the connector pin assignments, refer to the Wiring Diagram
in chapter 6 “Block Diagrams, Test Points, and Waveforms”.
The following diagram gives an overview of the control signal
flow for the LC08SP platform.
H_17740_053.eps
Figure 9-10 AmbiLight implementation
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Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 75LC8.1U LA9.
Figure 9-11 Control Signal flow diagram
H_17740_054.eps
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Page 76
Circuit Descriptions, Abbreviation List, and IC Data Sheets
The following GPIO table can be used for quick reference:
Table 9-1 GPIO Reference Table
DevicePinSymbolFunctionReferenceTypeRemarks
MT5382C22ALININT_CECGPIO46InputInterrupt Port from Stby Controller
MT5382A23AOBCKReservedGPIO49N/ATrap(0)
MT5382B23AOLRCKReservedGPIO48N/ATrap(1)
MT5382A24AOMCLKINTERRUPTGPIO47InputInterrupt Port for BDS Bolt-On
MT5382D22AOSDATA0ANA-DIG_DIM_SELECTGPIO50OutputAnalog or Digital Dimming Selection
MT5382C23AOSDATA1LCD_PWR_ONGPIO51OutputVdisp On/Off Control Signal
MT5382B24AOSDATA2+12VDISP_DETECTGPIO52InputDisplay Power Detection
WT61P7pin 41 GPIOE2STANDBYnPin 41OutputPower Control Line (Inverted)
EN 76LC8.1U LA9.
This section details the control signal descriptions. The control
signals are classified by their respective functions as follows:
•System
•Audio
•Display
•HDMI
•USB.
9.9.1System Control Signals
8280_DETECT
The 8280_DETECT signal is used to inform the MT5382 of the
presence of MT8280.
FLASH_WE
The FLASH_WE signal is the write enable signal for the system
flash IC. This signal is hardware-wise write enabled by default
but is put to disabled after it is written with a valid software
image file.
IR
The IR signal is an output from the remote control IR receiver.
This signal is connected in parallel to both MT5382 and
Standby Controller.
KEYBOARD
The KEYBOARD signal is a DC signal from the control board
ladder circuit indicating which key has been pressed.
LED1
The LED1 control signal comes from the Standby Controller
and its function is to control the ON mode LED. The ON mode
LED is "White" in color and represents the status of the system,
where it is “on” only in normal operation. A low signal turns on
the LED, while a high signal turns off the LED.
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Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 77LC8.1U LA9.
LED2
The LED2 control signal controls the secondary LED, and is
controlled by the Standby Controller. Similary, a low signal
turns on the LED, while a high signal turns off the LED. The
LED blinks in protection mode.
LIGHT_SENSOR
The LIGHT_SENSOR signal is an ADC input from the ambient
light sensor. The converted digital value is used in video and
picture quality improvement algorithms; refer to Video/PQ HSI
for the details.
FLASH_MJC_WE
The MJC_FLASH_WE signal is the write enable signal for the
MT8280 flash IC. This signal is hardware wise by default write
enabled but is put to disabled after it is written with a valid
software image file.
PANEL
The PANEL signal is used for service and is detected only at
startup. When activated, the system will go into PANEL mode.
PWRDET
The PWRDET signal detects the power status of the +3V3
supply at startup. The usage of this signal is described in
chapter 5 “Service Modes, Error Codes, and Fault Finding”.
POWER_DOWN
The POWER_DOWN signal is an input from the power-down
detection circuit. For the Standby Controller, this signal is used
to detect the presence of +12V during the startup process.
SCL + SDA
2
I
C signals.
SDM
The SDM signal is used for service and is detected only at
startup. When activated, the system will go into SDM mode.
headphone socket. When a headphone connection is detected,
the speaker output should be muted.
MUTEn
The MUTEn signal is used as the mute control to the
TDA8932BT class-D audio amplifier in an open drain
application.
ANA-DIG_AUDIO_SELECT (RESERVED)
The ANA-DIG_AUDIO_SELECT signal is used as a gain
selector for audio pre-amplifier. The purpose is to halve the
gain in the case of digital inputs, which includes HDMI and
digital TV inputs. The usage of this control signal is reserved,
so it should be set as high impedance during normal operation.
9.9.3Display Control Signals
ANA-DIG_DIM_SELECT (RESERVED)
The ANA-DIG_DIM_SELECT control signal is used to select
between digital PWM or analog DC backlight dimming method
based on the display type (display option), by acting as a
control signal to a 2:1 analog switch. By default, only digital
PWM backlight dimming will be used. The analog DC backlight
dimming is a provision for future displays which employs the
latter methodology.
BACKLIGHT_BOOST
The BACKLIGHT_BOOST signal is a PWM output to the
backlight boost circuit for display control.
BACKLIGHT_ON_OFF
The BACKLIGHT_ON_OFF signal is used to turn the display
backlight on and off.
CTRL_DISP1_uP
The CTRL_DISP1_uP signal is reserved for use with SDI PDP
display control. When other displays are used, this port should
be tri-stated.
STANDBYn
The STANDBYn signal is used to control the system power
status, which is used to put the power supply unit to standby or
normal operation. This signal is controlled by the Standby
Controller.
SYS_EEPROM_WE
The SYS_EEPROM_WE signal is the write enable signal for
the system EEPROM IC. The signal is connected to the active
low Write Control pin of the EEPROM via a transistor inverter.
This signal is only active when the system is conducting a write
operation to the system EEPROM.
+12VDISP_DETECT (RESERVED)
The +12VDISP_DETECT signal is an input from the display
timing controller power detection circuit. This signal is used to
detect any power faults on the mentioned power line.
9.9.2 Audio Control Signals
ANTI_PLOP
The ANTI_PLOP signal is used as an as anti-plop control for
the audio muting circuit.
DC_PROT
The DC_PROT signal is used to detect DC voltage level fault
condition at the speaker output to send the system into
protection in order to protect the audio amplifier and speakers.
HEADPHONE_DETECT
The HEADPHONE_DETECT signal is used to detect the
presence of a headphone connection to the Side AV
CTRL_DISP4_uP
The CTRL_DISP4_uP signal is reserved for use with FHP PDP
display control. When other displays are used, this port should
be tri-stated.
LCD_PWR_ON
The LCD_PWR_ON signal is used to turn the supply to the
display timing controller board on and off.
PWM_DIMMING
The PWM_DIMMING signal is a PWM output to the backlight
dimming circuit for display control.
9.9.4HDMI Control Signals
HDMI_RESET
The HDMI_RESET signal is used to reset the Sil9185 HDMI
switch.
CEC
The CEC control signal is used as the system CEC control line.
CEC is an AV systems control protocol derived from P50
adapted for HDMI control. This signal is connected to both
MT5382 and the Standby Controller, with the latter handling the
standby mode wakeup commands and the former handling all
normal operation commands.
DDC_RESET
The DDC_RESET signal is used for HDMI DDC data reset
purpose during HDMI signal detection.
Page 78
Circuit Descriptions, Abbreviation List, and IC Data Sheets
EDID_WE
The EDID_WE signal is the WE signal for the HDMI EEPROM
ICs. The signal is connected to the active low Write Control pin
of the EEPROM via a transistor inverter. This signal is only
used for the programming of EDID EEPROMs via MT5382. It is
not used during normal operation mode.
HDMI_HPD_1
The HDMI_HPD_1 signal is used for resetting the HDMI source
connected to HDMI1 during the hot plug process.
HDMI_HPD_2
The HDMI_HPD_2 signal is used for resetting the HDMI source
connected to HDMI2 during the hot plug process.
HDMI_HPD_3
The HDMI_HPD_3 signal is used for resetting the HDMI source
connected to HDMI3 during the hot plug process.
HDMI_HPD_SIDE
The HDMI_HPD_Side signal is used for resetting the HDMI
source connected to Side HDMI during the hot plug process.
INT_CEC
The INT_CEC signal is the interrupt signal from WT61P7 to
MT5382 for event notification. On the MT5382, an interrupt port
is used to receive the notification.
EN 78LC8.1U LA9.
9.9.5USB Control Signals
USB_OC
The USB_OC signal is an over-current indicator from the USB
power switch.
USB_PWE
The USB_PWE signal is the enable signal for the USB power
switch.
9.9.6MT8280 Control Signals
PRST
The PRST signal is the reset signal for MT8280.
PWN
The PWN signal is used to put the MT8280 into power down
mode.
INT0
The INTERRUPT signal is reserved for interrupt signals from
BDS bolt-on modules. For operational details, refer to BDS
specifications.
Page 79
Circuit Descriptions, Abbreviation List, and IC Data Sheets
algorithm that adapts aspect ratio to
remove horizontal black bars; keeping
up the original aspect ratio
ACAlternating Current
ACIAutomatic Channel Installation:
algorithm that installs TV channels
directly from a cable network by
means of a predefined TXT page
ADCanalogue to Digital Converter
AFCAutomatic Frequency Control: control
signal used to tune to the correct
frequency
AGCAutomatic Gain Control: algorithm that
controls the video input of the feature
box
AMAmplitude Modulation
AUOAcer Unipack Optronics
APAsia Pacific
ARAspect Ratio: 4 by 3 or 16 by 9
ASDAutomatic Standard Detection
AVAudio Video
BDSBroadcasting Data Services (used for
EPG)
B/GMonochrome TV system. Sound
carrier distance is 5.5 MHz
BTSCBroadcast Television System
for a CAM in a set top box
CLConstant Level: audio output to
connect with an external amplifier
CLUTColor 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
DCDirect Current
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
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
Page 80
Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 80LC8.1U LA9.
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. Color system used mainly
in North America and Japan. Color
carrier NTSC M/N = 3.579545 MHz,
NTSC 4.43 = 4.433619 MHz (this is a
VCR norm, it is not transmitted off-air)
NVMNon Volatile Memory: IC containing
TV related data (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. Color system
used mainly in Western Europe (color
carrier = 4.433619 MHz) and South
America (color carrier PAL M =
3.575612 MHz and PAL N = 3.582056
MHz)
PCPersonal Computer
PCBPrinted Circuit Board (or PWB)
PDPPlasma Display Panel
PIGPicture In Graphic
PIPPicture In Picture
PLLPhase Locked Loop. Used, for
example, in FST tuning systems. The
customer can directly provide the
desired frequency
PSUPower Supply Unit
PWBPrinted Wiring Board (or PCB)
RAMRandom Access Memory
RCRemote Control transmitter
RC5 (6)Remote Control system 5 (6), the
signal from the remote control receiver
RFRadio Frequency
RGBRed, Green, and Blue. The primary
and Vertical sync
ROMRead Only Memory
SAMService Alignment Mode
SCSandCastle: two-level pulse derived
from sync signals
SC1-OUTSCART output of the MSP audio IC
SC2-OUTSCART output of the MSP audio IC
S/CShort Circuit
SCLClock signal on I2C bus
SDStandard Definition: 480i, 576i
SDAData signal on I2C bus
SDISamsung Display Industry
SDMService Default Mode
SDRAMSynchronous DRAM
SECAMSEequence Couleur Avec Memoire.
Color system used mainly in France
and Eastern Europe. Color 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
output toward external amplifier
VCRVideo Cassette Recorder
VGAVideo Graphics Array
WDWatch Dog
WYSIWYRWhat You See Is What You Record:
record selection that follows main
picture and sound
XTALQuartz crystal
YPbPrComponent video (Y= Luminance, Pb/
Pr= Color 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 color signal.
Y-OUTLuminance-signal
YUVBaseband component video (Y=
Luminance, U/V= Color difference
signals)
Page 81
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.11 IC Data Sheets
This section shows the internal block diagrams and pin layouts
of ICs that are drawn as "black boxes" in the electrical diagrams
(with the exception of "memory" and "logic" ICs).
9.11.1 Diagram B2, Type TDA9886T (IC7201), Demodulator
Block Diagram
VIF-PLL
filter
C
VAGC pos
TOP
9
TAGC
14 16
C
AGC neg
(1)
VAGCVPLL
C
BL
19
external
reference
EN 81LC8.1U LA9.
crystal
4 MHz
or
REF
15
AFC
21
TUNER AGC
VIF2
2
1
VIF1
24
SIF2
23
SIF1
SUPPLY
(1) Not connected for TDA9885.
VIF-AGC
1820
AGNDV
P
Pin Configuration
VIF-PLL
SINGLE REFERENCE QSS MIXER/
INTERCARRIER MIXER AND
AM-DEMODULATOR
SIF-AGC
C
AGC
13
n.c.
RC VCO
OUTPUT
PORTS
3
VIF1
VIF2
OP1
FMPLL
DEEM
AFD
DGND
AUD
TOP
SDA
SCL
SIOMAD
DIGITAL VCO CONTROL
TDA9885
TDA9886
MAD
2
C-BUS TRANSCEIVER
I
22
1
2
3
4
5
6
TDA9885TS
TDA9886TS
7
8
9
10
11
12
AFC DETECTOR
VIDEO TRAPS
4.5 to 6.5 MHz
AUDIO PROCESSING
AND SWITCHES
NARROW-BAND FM-PLL
DETECTOR
10
7 11
12
sound intercarrier output
and MAD select
SIF2
24
SIF1
23
OP2
22
AFC
21
V
20
P
VPLL
19
AGND
18
CVBS
17
(1)
VAGC
16
REF
15
TAGC
14
n.c.
13
4
LLPMFDAMOISDNGDADSLCS2PO1PO
FM-PLL filter
17
8
5
6
CVBS
AUD
DEEM
de-emphasis
network
AFD
C
video output 2 V (p-p)
[1.1 V (p-p) without trap]
AF
G_16510_059.eps
221106
Figure 9-12 Internal block diagram and pin configuration
Page 82
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.11.2 Diagram B3, Type TDA8932BT (IC7301), Class-D Audio Amplifier
EN 82LC8.1U LA9.
Block Diagram
2
IN1P
3
IN1N
IN2P
IN2N
12
15
14
4
7
6
5
INREF
DIAG
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
V
DDA
STABILIZER 11 V
V
SSP1
V
DDA
STABILIZER 11 V
V
SSP2
REGULATOR 5 V
V
SSD
V
DDA
28
BOOT1
29
V
DDP1
27
OUT1
26
V
SSP1
21
BOOT2
20
V
DDP2
22
OUT2
23
V
SSP2
25
STAB1
24
STAB2
18
DREF
11
HVPREF
TEST
13
Pin Configuration
30
HVP1
V
TDA8932
9
V
SSA
V
SSD(HW)
V
SSD(HW)
V
DDA
V
OSCREF
V
SSD(HW)
1, 16, 17, 32
SSA
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
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
Figure 9-13 Internal block diagram and pin configuration
G_16860_045.eps
300107
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Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.11.3 Diagram B4, Type MT5382 (IC7A01), Audio / Video Processor
Block Diagram
EN 83LC8.1U LA9.
Pin Configuration
MT5382
Figure 9-14 Internal block diagram and pin configuration
H_17740_055.eps
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Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.11.4 Diagram B4E Type SIL9185 (IC7E18), HDMI Multiplexer