Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.
Published by WS 0763 BG CD Customer ServicePrinted in the NetherlandsSubject to modificationEN 3122 785 16940
EN 2LC7.1E 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: 32” (82 cm), 16:9
Resolution (HxV pixels): 1366 x 768
Min. contrast ratio: 4000:1 (32”)
2
Min. light output (cd/m
Typ. response time (ms): 8 (32”)
Viewing angle (HxV degrees): 178x178
Tuning system: PLL
TV Colour systems: PAL B/G, D/K, I
Technical Specifications, Connections, and Chassis Overview
1.2Connection Overview
Figure 1-1 Side and rear I/O connections
H_16940_005.eps
270207
EN 3LC7.1E LA1.
Note: The following connector colour abbreviations are used
(acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy=
Grey, Rd= Red, Wh= White, and Ye= Yellow.
1.2.1Side Connections
EXT3: Headphone - Out
Bk -Headphone 32 - 600 ohm / 10 mW rt
EXT3: Cinch: Video CVBS - In, Audio - In
Rd - Audio R 0.5 V
Wh -Audio L 0.5 V
Ye -Video CVBS 1 V
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
/ 75 ohm jq
PP
EXT3: S-Video (Hosiden): Video Y/C - In
1-Ground Y Gnd H
2-Ground C Gnd H
3-Video Y 1 V
4-Video C 0.3 V
/ 75 ohm j
PP
P / 75 ohm j
PP
1.2.2Rear Connections
EXT1: Video RGB - In, CVBS - In/Out, Audio - In/Out
21
20
E_06532_001.eps
2
1
050404
Figure 1-2 SCART connector
1-Audio R 0.5 V
2-Audio R 0.5 V
3-Audio L 0.5 V
4-Ground Audio Gnd H
/ 1 kohm k
RMS
/ 10 kohm j
RMS
/ 1 kohm k
RMS
5-Ground Blue Gnd H
6-Audio L 0.5 V
7-Video Blue 0.7 V
8-Function Select 0 - 2 V: INT
/ 10 kohm j
RMS
/ 75 ohm j
PP
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3 j
9 - Ground Green Gnd H
10 - Easylink P50 0 - 5 V / 4.7 kohm jk
11 - Video Green 0.7 V
12 - n.c.
/ 75 ohm j
PP
13 - Ground Red Gnd H
14 - Ground P50 Gnd H
15 - Video Red 0.7 V
16 - Status/FBL 0 - 0.4 V: INT
/ 75 ohm j
PP
1 - 3 V: EXT / 75 ohm j
17 - Ground Video Gnd H
18 - Ground FBL Gnd H
19 - Video CVBS 1 V
20 - Video CVBS 1 V
21 - Shield Gnd H
/ 75 ohm k
PP
/ 75 ohm j
PP
EXT2: Video YC - In, CVBS - In/Out, Audio - In/Out
21
20
E_06532_001.eps
2
1
050404
Figure 1-3 SCART connector
1 - Audio R 0.5 V
2 - Audio R 0.5 V
3 - Audio L 0.5 V
4 - Ground Audio Gnd H
/ 1 kohm k
RMS
/ 10 kohm j
RMS
/ 1 kohm k
RMS
5-n.c.
6 - Audio L 0.5 V
7 - C-out 0.7 V
/ 10 kohm j
RMS
/ 75 ohm k
PP
8 - Function Select 0 - 2 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3 j
9-n.c.
10 - Easylink P50 0 - 5 V / 4.7 kohm jk
11 - n.c.
12 - n.c.
13 - n.c.
14 - Ground P50 Gnd H
15 - C 0.7 V
/ 75 ohm j
PP
16 - Status/FBL 0 - 0.4 V: INT
1 - 3 V: EXT / 75 ohm j
17 - Ground Video Gnd H
EN 4LC7.1E LA1.
Technical Specifications, Connections, and Chassis Overview
18 - Ground FBL Gnd H
19 - Video CVBS 1 V
20 - Video CVBS/Y 1 V
21 - Shield Gnd H
/ 75 ohm k
PP
/ 75 ohm j
PP
Service Connector (UART)
1 - UART_TX Transmit k
2 - Ground Gnd H
3 - UART_RX Receive j
Aerial - In
--IEC-type (EU) Coax, 75 ohm D
Service Connector (ComPair)
1 - SDA-S I
2-SCL-S I
2
C Data (0 - 5 V) jk
2
C Clock (0 - 5 V) j
3 - Ground Gnd H
HDMI 1 & 2: Digital Video, Digital Audio - In
19
182
1
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Figure 1-4 HDMI (type A) connector
1.3Chassis Overview
1 - D2+ Data channel j
2 - Shield Gnd H
3 - D2- Data channel j
4 - D1+ Data channel j
5 - Shield Gnd H
6 - D1- Data channel j
7 - D0+ Data channel j
8 - Shield Gnd H
9 - D0- Data channel j
10 - CLK+ Data channel j
11 - Shield Gnd H
12 - CLK- Data channel j
13 - n.c.
14 - n.c.
15 - DDC_SCL DDC clock j
16 - DDC_SDA DDC data jk
17 - Ground Gnd H
18 - +5V j
19 - HPD Hot Plug Detect j
20 - Ground Gnd H
EXT4: Cinch: Video YPbPr - In, Audio - In
Gn - Video Y 1 V
Bu -Video Pb 0.7 V
Rd - Video Pr 0.7 V
Wh -Audio L 0.5 V
Rd - Audio R 0.5 V
/ 75 ohm jq
PP
/ 75 ohm jq
PP
/ 75 ohm jq
PP
/ 10 kohm jq
RMS
/ 10 kohm jq
RMS
POWER SUPPLY UNIT
SMALL SIGNAL
B
BOARD
Figure 1-5 PWB/CBA locations (32” models)
SIDE I/O PANEL
CONTROL BOARD
LED PANEL
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D
E
J
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Technical Specifications, Connections, and Chassis Overview
EN 5LC7.1E LA1.
POWER SUPPLY UNIT
SMALL SIGNAL
B
BOARD
Figure 1-6 PWB/CBA locations (42” models)
SIDE I/O PANEL
CONTROL PANEL
LED PANEL
H_16940_008.eps
D
E
J
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EN 6LC7.1E LA2.
Safety Instructions, Warnings, and Notes
2.Safety Instructions, Warnings, and Notes
Index of this chapter:
2.1 Safety Instructions
2.2 Warnings
2.3 Notes
2.1Safety Instructions
Safety regulations require the following during a repair:
•Connect the set to the Mains/AC Power via an isolation
transformer (> 800 VA).
•Replace safety components, indicated by the symbol h,
only by components identical to the original ones. Any
other component substitution (other than original type) may
increase risk of fire or electrical shock hazard.
Safety regulations require that after a repair, the set must be
returned in its original condition. Pay in particular attention to
the following points:
•Route the wire trees correctly and fix them with the
mounted cable clamps.
•Check the insulation of the Mains/AC Power lead for
external damage.
•Check the strain relief of the Mains/AC Power cord for
proper function.
•Check the electrical DC resistance between the Mains/AC
Power plug and the secondary side (only for sets that have
a Mains/AC Power isolated power supply):
1. Unplug the Mains/AC Power cord and connect a wire
between the two pins of the Mains/AC Power plug.
2. Set the Mains/AC Power switch to the "on" position
(keep the Mains/AC Power cord unplugged!).
3. Measure the resistance value between the pins of the
Mains/AC Power plug and the metal shielding of the
tuner or the aerial connection on the set. The reading
should be between 4.5 Mohm and 12 Mohm.
4. Switch "off" the set, and remove the wire between the
two pins of the Mains/AC Power plug.
•Check the cabinet for defects, to prevent touching of any
inner parts by the customer.
Service Default Mode (see chapter 5) with a colour bar
signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated
otherwise) and picture carrier at 475.25 MHz for PAL, or
61.25 MHz for NTSC (channel 3).
•Where necessary, measure the waveforms and voltages
with (D) and without (E) aerial signal. Measure the
voltages in the power supply section both in normal
operation (G) and in stand-by (F). These values are
indicated by means of the appropriate symbols.
•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= x10
nano-farads (n= x10
•Capacitor values may also use the value multiplier as the
decimal point indication (e.g. 2p2 indicates 2.2 pF).
•An "asterisk" (*) indicates component usage varies. Refer
to the diversity tables for the correct values.
•The correct component values are listed in the Spare Parts
List. Therefore, always check this list when there is any
doubt.
2.3.3BGA (Ball Grid Array) ICs
Introduction
For more information on how to handle BGA devices, visit this
URL: www.atyourservice.ce.philips.com (needs subscription,
not available for all regions). After login, select “Magazine”,
then go to “Repair downloads”. Here you will find Information
on how to deal with BGA-ICs.
-9
), or pico-farads (p= x10
-12
-6
),
).
2.2Warnings
•All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD w). Careless handling
during repair can reduce life drastically. Make sure that,
during repair, you are connected with the same potential as
the mass of the set by a wristband with resistance. Keep
components and tools also at this same potential. Available
ESD protection equipment:
– Complete kit ESD3 (small tablemat, wristband,
connection box, extension cable and earth cable) 4822
310 10671.
– Wristband tester 4822 344 13999.
•Be careful during measurements in the high voltage
section.
•Never replace modules or other components while the unit
is switched "on".
•When you align the set, use plastic rather than metal tools.
This will prevent any short circuits and the danger of a
circuit becoming unstable.
2.3Notes
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
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.
Safety Instructions, Warnings, and Notes
To avoid wear-out of tips, switch “off” unused equipment or
reduce heat.
•Mix of lead-free soldering tin/parts with leaded soldering
tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If this cannot be avoided, carefully
clear the solder-joint from old tin and re-solder with new tin.
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.
EN 7LC7.1E LA2.
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.
MODEL :
PROD.NO:
32PF9968/10
AG 1A0617 000001
MADE IN BELGIUM
220-240V 50/60Hz
~
VHF+S+H+UHF
BJ3.0E LA
S
E_06532_024.eps
Figure 2-1 Serial number (example)
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!
128W
130606
2.3.7Practical Service Precautions
•It makes sense to avoid exposure to electrical shock.
While some sources are expected to have a possible
dangerous impact, others of quite high potential are of
limited current and are sometimes held in less regard.
•Always respect voltages. While some may not be
dangerous in themselves, they can cause unexpected
reactions that are best avoided. Before reaching into a
powered TV set, it is best to test the high voltage insulation.
It is easy to do, and is a good service precaution.
EN 8LC7.1E LA3.
3.Directions for Use
You can download this information from the following websites:
•Figures below can deviate slightly from the actual situation,
due to the different set executions.
•Follow the disassemble instructions in described order.
They apply to the 32” sets.
Figure 4-1 Cable dressing (32” models)
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EN 10LC7.1E LA4.
Mechanical Instructions
Figure 4-2 Cable dressing (42” models)
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Mechanical Instructions
EN 11LC7.1E LA4.
4.2Service Positions
For easy servicing of this set, there are a few possibilities
created:
•The buffers from the packaging.
•Foam bars (created for Service).
•Aluminium service stands (created for Service).
Note: the aluminium service stands can only be used when the
set is equipped with so-called “mushrooms”. Otherwise use the
original stand that comes with the set.
4.2.1Foam Bars
Required for sets
1
42”
4.2.2Aluminium Stands
E_06532_019.eps
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1
Figure 4-4 Aluminium stands (drawing of MkI)
The new MkII aluminium stands (not on drawing) with order
code 3122 785 90690, can also be used to do measurements,
alignments, and duration tests. The stands can be
(dis)mounted quick and easy by means of sliding them in/out
the "mushrooms". The new stands are backwards compatible
with the earlier models.
Important: For (older) FTV sets without these "mushrooms", it
is obligatory to use the provided screws, otherwise it is possible
to damage the monitor inside!
E_06532_018.eps
171106
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.
4.3Assy/Panel Removal
4.3.1Rear Cover
Warning: Disconnect the mains power cord before you remove
the rear cover.
1. Place the TV set upside down on a table top, using the
foam bars (see part "Service Position").
2. Remove rear cover screws and the stand (if mounted).
3. Remove rear cover.
4.3.2Keyboard Control Panel
1. Remove the rear cover, as described earlier.
2. Refer to fig. “Keyboard control panel“ below.
3. Remove the T10 parker screws [1].
4. Unplug connector [2].
5. Remove the unit.
6. Release clips [3] and remove the board.
When defective, replace the whole unit.
EN 12LC7.1E LA4.
s
7
Mechanical Instructions
1
c
3
2
1
Figure 4-5 Keyboard control panel
4.3.3Side I/O Panel
1. Remove the rear cover, as described earlier.
2. Unplug connector [a].
3. Remove screws [b] and remove the complete module. One
of the screws is T10 tapping, the other one is T10 parker.
See fig. “Side I/O module”.
5. Push catch [d] (located at the underside of the bracket) and
slide the unit to the right from its bracket [e]. See fig. “Side
I/O panel 2”.
6. To remove the PWB from its bracket, you have to lift the
catch [f] loacted on top of the headphone connector. At the
same time, slide the PWB out of its bracket [g]. See fig.
“Side I/O panel 3”.
When defective, replace the whole unit.
b (1x)
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090207
Figure 4-7 Side I/O panel [1/3] top side
2d
2e
G_16860_075.eps
G_16860_076.eps
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010207
a
Figure 4-6 Side I/O module
b (1x)
G_16860_066.ep
Figure 4-8 Side I/O panel [2/3] bottom side
01020
Mechanical Instructions
s
7
4.3.5Mid-range Speakers
1. Remove the rear cover, as described earlier.
2. Refer to fig. “Mid-range speakers“ below.
3. Unplug connectors [1].
4. Remove T10 parker screws [2].
EN 13LC7.1E LA4.
g
2
f
Figure 4-9 Side I/O panel [3/3]
4.3.4IR/LED Panel
1. Remove the rear cover, as described earlier.
2. Refer to fig. “IR/LED panel“ below.
3. Unplug connector(s) [1].
4. Release clip [2] and remove the board.
When defective, replace the whole unit.
1
G_16860_077.eps
010207
212
Figure 4-11 Mid-range speakers
4.3.6Tweeters
1. Remove the rear cover, as described earlier.
2. Refer to fig. “Tweeters” below.
3. Unplug connectors [1].
4. Remove T10 parker screws [2].
21
Figure 4-12 Tweeters
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2
Figure 4-10 IR/LED panel
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4.3.7Small Signal Board (SSB)
1. Remove the rear cover, as described earlier.
2. Refer to fig. “SSB removal“ below.
3. Disconnect all cables [a] on the SSB.
4. Remove the T10 tapping screws [b] that hold the SSB. See
Figure “SSB removal”.
5. Remove the screws that hold the CINCH and HDMI
connectors at the connector panel.
6. Lift the SSB from the set.
b (3x)
aa
b (2x)b (3x)
b (2x)
G_16860_074.ep
01020
Figure 4-13 SSB removal
EN 14LC7.1E LA4.
s
7
Mechanical Instructions
4.3.8Main Supply Panel
1. Remove the rear cover, as described earlier.
2. Refer to fig. “Main supply panel“ below.
3. Unplug cables [a].
4. Remove the fixation screws [b].
5. Take the board out (it hinges at the left side).
a
b (3x)
a
a
4.3.9LCD Panel
1. Remove the rear cover, as described earlier.
2. Refer to fig. “LCD panel“ below.
3. Unplug the connectors on the Main Supply Panel [a] and
the LED & IR board [c].
4. Unplug the outer connectors [d] from the mid-range
loudspeakers.
5. Do NOT forget to unplug the LVDS connector [e] from the
SSB. Important: Be careful, as this is a very fragile
connector!
6. Remove T10 parker screw [b] that holds the Side I/O
module bracket.
7. Remove T10 parker screws [f] of the central sub-frame.
8. Remove LCD panel fixation screws [g] and lift the complete
central sub-frame from the set (incl. the PSU, SSB, and
Side I/O boards and wiring).
9. Lift the LCD panel [7] from the front cabinet.
Figure 4-14 Main supply panel
f (1x)
g (2x)
a
g (2x)
G_16860_065.ep
01020
e
f (3x)
b
d
f (2x)
d
c (1x)
G_16860_067.eps
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Figure 4-15 LCD panel [1/2]
7
Figure 4-16 LCD panel [2/2]
4.4Set Re-assembly
To re-assemble the whole set, execute all processes in reverse
order.
Mechanical Instructions
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EN 15LC7.1E LA4.
Notes:
•While re-assembling, make sure that all cables are placed
and connected in their original position. See figure "Cable
dressing".
•Pay special attention not to damage the EMC foams.
Ensure that EMC foams are mounted correctly (one is
located above the LVDS connector on the display, between
the LCD display and the metal sub-frame).
EN 16LC7.1E LA5.
Service Modes, Error Codes, and Fault Finding
5.Service Modes, Error Codes, and Fault Finding
Index of this chapter:
5.1 Test Points
5.2 Service Modes
5.3 Service Tools
5.4 Error Codes
5.5 The Blinking LED Procedure
5.7 Fault Finding and Repair Tips
5.1Test Points
In the chassis schematics and layout overviews, the test points
(Fxxx) are mentioned. In the schematics, test points are
indicated with a rectangular box around “Fxxx” or “Ixxx”, in the
layout overviews with a “half-moon” sign.
As most signals are digital, it will be difficult to measure
waveforms with a standard oscilloscope. Several key ICs are
capable of generating test patterns, which can be controlled via
ComPair. In this way it is possible to determine which part is
defective.
Perform measurements under the following conditions:
•Service Default Mode.
•Video: Colour bar signal.
•Audio: 3 kHz left, 1 kHz right.
5.2Service Modes
The Service Mode feature is split into four parts:
•Service Default Mode (SDM).
•Service Alignment Mode (SAM).
•Customer Service Mode (CSM) and Digital Customer
Service Mode (DCSM).
•Computer Aided Repair Mode (ComPair).
SDM and SAM offer features, which can be used by the Service
engineer to repair/align a TV set. Some features are:
•A pre-defined situation to ensure measurements can be
made under uniform conditions (SDM).
•Activates the blinking LED procedure for error identification
when no picture is available (SDM).
•The possibility to overrule software protections when SDM
was entered via the Service pins.
•Make alignments (e.g. white tone), (de)select options,
enter options codes, reset the error buffer (SAM).
•Display information (“SDM” or “SAM” indication in upper
right corner of screen, error buffer, software version,
operating hours, options and option codes, submenus).
The (D)CSM is a Service Mode that can be enabled by the
consumer. Instructions on how to enable the CSM can be given
by telephone by either the dealer or the P3C (Philips Customer
Care Center). The CSM displays diagnosis information, which
the customer can forward to the dealer/P3C. 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 faultfinding
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 life timer is kept. This
life timer counts the normal operation hours, but not the Standby hours. The actual value of the life timer is displayed in SDM
and CSM in a decimal value. Every two soft-resets should
increase the hour by +1. Minimal five digits are displayed.
Software Identification, Version, and Cluster
The software identification, version, and cluster will be shown
in the main menu display of SDM, SAM, and CSM.
The screen will show: “AAAABCD X.YY”, where:
•AAAA is the chassis name: LC71 for analogue range
(non-DVB), LC72 for digital range (DVB).
•B is the region indication: E= Europe, A= AP/China, U=
NAFTA, L= LATAM.
•C is the display indication: L= LCD, P= Plasma.
•D is the language/features indication: 1= standard, H=
1080p full HD.
•X is the main version number: The main version number is
updated with a major change of specification (incompatible
with the previous software version). Numbering will go from
1 - 9 then from 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: The sub version number is
updated with a minor change (backwards compatible with
the previous versions) Numbering w
– 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
ill go from 00 - 99.
Service Modes, Error Codes, and Fault Finding
EN 17LC7.1E LA5.
Display Option Code Selection
When after a display exchange, the display option code is not
properly set, 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 first
column in table “Display Code Overview” or sticker on the side/
bottom of the cabinet). When the value is properly accepted
and stored in NVM, the set will switch to Stand-by, to indicate
that the process has been completed successfully.
Display Option
Code
39mm
040
PHILIPS
MODEL:
32PF9968/10
27mm
PROD.SERIAL NO:
AG 1A0620 000001
(CTN Sticker)
E_06532_038.eps
290107
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.
•Create a predefined setting for measurements to be made.
•Override software protections.
•Start the blinking LED procedure.
•Read the error buffer.
•Check the life timer.
Specifications
Table 5-2 SDM default settings
RegionFreq. (MHz)Default syst.
Europe (except France),
475.25PAL B/G
AP-PAL/-Multi
FranceSECAM L
NAFTA, AP-NTSC61.25 (channel 3) NTSC M
LATAMPAL M
•Set linear video and audio settings to 50 %, but volume to
25 %. Stored user settings are not affected.
•All service-unfriendly modes (if present) are disabled, since
they interfere with diagnosing/repairing a set.. These
service unfriendly modes are:
– (Sleep) timer.
– Blue mute/Wall paper.
– Auto switch “off” (when there is no “ident” signal).
– Hotel or hospital mode.
– Child lock or parental lock (manual or via V-chip).
– Skipping, blanking of “Not favourite”, “Skipped” or
“Locked” presets/channels.
– Automatic storing of Personal Preset or Last Status
settings.
– Automatic user menu time-out (menu switches back/
OFF automatically.
– Auto Volume levelling (AVL).
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.
HHHHH A A A A B CD - X . Y Y
ERR XX XX XX XX XX
O P X X X X X X X X XX X XX X XX X X
SDM
G_16860_030.ep
26010
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.
•SDM: The character “SDM” to indicate that the TV set is in
Service mode.
•ERR: Shows all errors detected since the last time the
buffer was erased. Five errors possible.
•OP: Used to read-out the option bytes. See “Options” in the
Alignments section for a detailed description. Seven codes
are possible.
How to Navigate
As this mode is read only, there is not much to navigate. To
switch to other modes, use one of the following methods:
•Command MENU from the user remote will enter the
normal user menu (brightness, contrast, colour, etc...) with
“SDM” OSD remaining, and pressing MENU key again will
return to the last status of SDM again.
•To prevent the OSD from interfering with measurements in
SDM, command “OSD” (“STATUS” for NAFTA and
LATAM) from the user remote will toggle the OSD “on/off”
with “SDM” OSD remaining always “on”.
•Press the following key sequence on the remote control
ansmitter: “062596” directly followed by the OSD/i+
tr
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.
SDMSDM
G_16860_027.eps
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.
260107
Service Modes, Error Codes, and Fault Finding
EN 19LC7.1E LA5.
5.2.3Service Alignment Mode (SAM)
Purpose
•To change option settings.
•To display / clear the error code buffer.
•To perform alignments.
Specifications
•Operation hours counter (maximum five digits displayed).
•Software version, error codes, and option settings display.
•Error buffer clearing.
•Option settings.
•Software alignments (Tuner, White Tone, and Audio).
•NVM Editor.
•ComPair Mode switching.
•Set the screen mode to full screen (all contents on screen
are viewable).
How to Activate
To activate SAM, use one of the following methods:
•Press the following key sequence on the remote control
transmitter: “062596" directly followed by the OSD/STATUS/INFO/i+ button (it depends on region which
button is present on the RC). Do not allow the display to
time out between entries while keying the sequence.
•Or via ComPair.
After entering SAM, the following screen is visible, with SAM in
the upper right corner of the screen to indicate that the
television is in Service Alignment Mode.
LLLL L A AAABCD- X. YY
ERR XX XX XX XX XX
O P X X X X X X X X XX X X X X XX X X
C l e a r >Y e s
O p t i o n s >
T u n e r >
R G B A l i g n >
N V M E d i t o r >
C o m p a i r >
S W E V E N T S >
Figure 5-4 SAM menu
Menu explanation:
1. LLLLL. This represents the run timer. The run timer counts
normal operation hours, but does not count Stand-by
hours.
2. AAAABCD-X.YY. See paragraph “Service Modes” ->
“General” -> “Software Identification, Version, and Cluster”
for the SW name definition.
3. SAM. Indication of the Service Alignment Mode.
4. ERR (ERRor buffer). Shows all errors detected since the
last time the buffer was erased. Five errors possible.
5. OP (Option Bytes). Used to read-out the option bytes. See
“Options” in the Alignments section for a detailed
description. Seven codes are possible.
6. Clear. Erases the contents of the error buffer. Select the
CLEAR menu item and press the MENU RIGHT key. The
content of the error buffer is cleared.
7. Options. Used to set the option bits. See “Options” in the
“Alignments” chapter for a detailed description.
8. Tuner. Used to align the tuner. See “Tuner” in the
“Alignments” chapter for a detailed description.
9. RGB Align. Used to align the White Tone. See “White
Tone” in the “Alignments” chapter for a detailed
description.
10. NVM Editor. Can be used to change the NVM data in the
television set. See also paragraph “Fault Finding and
Repair Tips” further on.
11. ComPaIr. Can be used to switch the television to “In
Application Programming” mode (IAP), for software
SAM
G_16860_031.eps
260107
uploading via ComPair. Read paragraph “Service Tools” > “ComPair”. Caution: When this mode is selected without
ComPair connected, the TV will be blocked. Remove the
AC power to reset the TV.
12. SW Events. Only to be used by development to monitor
SW behaviour during stress test.
How to Navigate
•In the SAM menu, select menu items with the MENU UP/
DOWN keys on the remote control transmitter. The
selected item will be indicated. When not all menu items fit
on the screen, use the MENU UP/DOWN keys to display
the next / previous menu items.
With the MENU LEFT/RIGHT keys, it is possible to:
•
– Activate the selected menu item.
– Change the value of the selected menu item.
– Activate the selected submenu.
•When you press the MENU button twice while in top level
SAM, the set will switch to the normal user menu (with the
SAM mode still active in the background). To return to the
SAM menu press the MENU button.
•Command “OSD/i+” key from the user remote will toggle
the OSD “on/off” with “SAM” OSD remaining always “on”.
•Press the following key sequence on the remote control
transmitter: “062596” directly followed by the MENU button
to switch to SDM (do not allow the display to time out
between entries while keying the sequence).
How to Store SAM Settings
To store the settings changed in SAM mode (except the
OPTIONS settings), leave the top level SAM menu by using the
POWER button on the remote control transmitter or the
television set.
How to Exit
Switch the set to STANDBY by pressing the mains button on
the remote control transmitter or the television set.
Note:
•When the TV is switched “off” by a power interrupt while in
SAM, the TV will show up in "normal operation mode" as
soon as the power is supplied again. The error buffer will
not be cleared.
•In case the set is in Factory mode by accident (with “F”
displayed on screen), by pressing and hold “VOL-“ and
“CH-” together should leave Factory mode.
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
are viewable).
•After leaving the Customer Service Mode, the original
settings are restored.
•Possibility to use “CH+” or “CH-” for channel surfing, or
enter the specific channel number on the RC.
How to Activate
To activate CSM, press the following key sequence on the
remote control transmitter: “123654” (do not allow the display
to time out between entries while keying the sequence).
EN 20LC7.1E LA5.
s
7
Service Modes, Error Codes, and Fault Finding
Upon entering the Customer Service Mode, the following
screen will appear:
1 M O D E L : 3 2 P F L 5 5 2 2 D / 1
2 P R O D S / N : AG1A0712123456
3 S W I D : L C 7 1 E L 1 - 1 . x x
4 O P : X X XX X XX X XX X XX X X X X X X X X
5 C O D E S : X X X XX XX XX X
6 S S B : 3 1 39 1 27 12341
7 N V M : X X X X X X X X
8 F l a s h D a t a : X X . X X . X X . X X
9 L I F E T I M E R : L L L L L
1 0 T U N E R : W E A K / G O O D / S T R O N G
1 1 S Y S T E M : P A L / N T S C / S E C A M
1 2 S O U N D : M O N O / S T E R E O / N I C A M
1 3H D A U : Y E S / N O
1 4F O R M A T : X X X X X X X X
0
CS M
G_16860_032.ep
21020
Figure 5-5 CSM menu
Menu Explanation
1. MODEL. Type number, e.g. 32PFL5522D/10. (*)
2. PROD S/N. Product serial no., e.g. AG1A0712123456. (*)
3. SW ID. Software cluster and version is displayed.
4. OP. Option code information.
5. CODES. Error buffer contents.
6. SSB. Indication of the SSB factory identification code
(12nc). (*)
7. NVM. The NVM software version no.
8. Flash Data. PQ (picture quality) and AQ (audio quality)
data version. This is a sub set of the main SW.
9. LIFE TIMER. Operating hours indication.
10. TUNER. Indicates the tuner signal condition: “Weak” when
signal falls below threshold value, “Medium” when signal is
at mid-range, and “Strong” when signal falls above
threshold value.
11. SYSTEM. Gives information about the video system of the
selected transmitter (PAL/SECAM/NTSC).
12. SOUND. Gives information about the audio system of the
selected transmitter (MONO/STEREO/NICAM).
13. HDAU. HDMI audio stream detection. “YES” means audio
stream detected. “NO” means no audio stream present.
Only displayed when HDMI source is selected.
14. FORMAT. Gives information about the video format of the
selected transmitter (480i/480p/720p/1080i).
15. HD SW ID. Software version of the 1080p full HD module
(when present).
16. Reserved.
17. Reserved.
18. Reserved.
(*) If an NVM IC is replaced or initialised, this data must be rewritten to the NVM. ComPair will foresee in a possibility to do
this.
How to Exit
To exit CSM, use one of the following methods:
•Press the MENU button twice, or POWER button on the
remote control transmitter.
•Press the POWER button on the television set.
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).
The ComPair fault finding program is able to determine the
problem of the defective television, by a combination of
automatic diagnostics and an interactive question/answer
procedure.
How to Connect
This is described in the chassis fault finding database in
ComPair.
TO TV
OR
RS232 /UART
G_06532_036.eps
TO
UART SERVICE
CONNECTOR
260107
ComPair II
RC in
Optional
Switch
PowerModeLink/
Activity
HDMI
I
TO
I2C SERVICE
CONNECTOR
Multi
function
RC out
2
I
C
PC
ComPair II Developed by Philips Brugge
Optional power
2
C only
5V DC
Figure 5-6 ComPair II interface connection
Caution: It is compulsory to connect the TV to the PC as
shown in the picture above (with the ComPair interface in
between), as the ComPair interface acts as a level shifter. If
one connects the TV directly to the PC (via UART), ICs will be
blown!
Note: If you encounter any problems, contact your local
support desk
5.3.2LVDS Tool
5.3Service Tools
5.3.1ComPair
Introduction
ComPair (Computer Aided Repair) is a Service tool for Philips
Consumer Electronics products. and offers the following:
1. ComPair helps you to quickly get an understanding on how
to repair the chassis in a short and effective way.
2. ComPair allows very detailed diagnostics and is therefore
capable of accurately indicating problem areas. You do not
have to know anything about I2C or UART commands
yourself, because ComPair takes care of this.
Introduction
This Service tool (also called “ComPair Assistant 1“) may help
you to identify, in case the TV does not show any picture,
whether the Small Signal Board (SSB) or the display of a Flat
TV is defective. Thus to determine if LVDS, RGB, and sync
signals are okay.
Furthermore it is possible to program EPLDs with this tool (Byte
blaster). Read the user manual for an explanation of this
feature.
When operating, the tool will show a small (scaled) picture on
a VGA monitor. Due to a limited memory capacity, it is not
possible to increase the size when processing high-resolution
Service Modes, Error Codes, and Fault Finding
EN 21LC7.1E LA5.
LVDS signals (> 1280x960). Below this resolution, or when a
DVI monitor is used, the displayed picture will be full size.
How to Connect
Connections are explained in the user manual, which is packed
with the tool. The LVDS cables included in the package cover
most chassis. For some chassis, a separate cable must be
ordered.
Note: To use the LVDS tool, you must have ComPair release
2004-1 (or later) on your PC (engine version >= 2.2.05).
For every TV type number and screen size, one must choose
the proper settings via ComPair. The ComPair file will be
updated regularly with new introduced chassis information.
How to Order
•LVDS tool (incl. two LVDS cables: 31p and 20p, covering
chassis BJx.x, EJx.x, FJx.x and LC4.1):
3122 785 90671.
1. Included in LVDS tool package (order code
3122 785 90671)
2. Pins 27 and 28 should be grounded or not connected.
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.
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.
5.4.3Error 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).
EN 22LC7.1E LA5.
Service Modes, Error Codes, and Fault Finding
Table 5-4 Error code overview
Error
1)
code
0No error.
1DC Protection of
2+12V protection error.12V missing or "low".
3Reserved.
4General I2C error.note 2
5Trident Video
6I2C error while
7I2C error while
8I2C error while
9I2C error
10SDRAM defective.7204
11I2C error while
12I2C error while
13DVB HW
14SDRAM defective.7205
15Reserved.
16Reserved.
17Reserved.
18I2C error while
19I2C error while
Description
speakers.
Processor
communication error.
communicating with
the NVM.
communicating with
the Tuner.
communicating with
the IF Demodulator.
communicating with
the Sound Processor.
communicating with
the HDMI IC.
communicating with
the MOJO PNX8314.
communication error.
communicating with
the iBoard processor.
communication with
1080p bolt-on module.
Item
nr.Remarks
7202 When Trident IC is
defective, error 10
and 14 might also be
reported. Trident
communicates via
parallel bus, not via
the I2C bus. The I2C
bus of Trident is only
used in ComPair
mode.
7315 The TV will not start-
up due to critical dta
not available from the
NVM, but the LED
will blink the error
code.
1101
7113
7411
7817
7G00 if applicable
7F01,
if applicable
7K00,
7G00
if applicable
if applicable
– To enter SAM, press the following key sequence on the
remote control transmitter: “062596” directly followed
by the OSD/i+ button (do not allow the display to time
out between entries while keying the sequence).
– Make sure the menu item CLEAR is selected. Use the
MENU UP/DOWN buttons, if necessary.
– Press the MENU RIGHT button to clear the error
buffer. The text on the right side of the “CLEAR” line will
change from “CLEAR?” to “CLEARED”
•If the contents of the error buffer have not changed for 50
hours, the error buffer resets automatically.
Note: If you exit SAM by disconnecting the mains from the
television set, the error buffer is not reset.
Notes
1. Some of the error codes reported are depending on the
option code configurations.
2. This error means: no I2C device is responding to the
particular I2C bus. Possible causes: SCL/SDA shorted to
GND, SCL shorted to SDA, or SCL/SDA open (at uP pin).
The internal bus of the Trident platform should not cause
the entire system to halt as such an error can be reported.
5.4.4How to Clear the Error Buffer
The error code buffer is cleared in the following cases:
•By using the CLEAR command in the SAM menu:
Service Modes, Error Codes, and Fault Finding
EN 23LC7.1E LA5.
5.5The Blinking LED Procedure
5.5.1Introduction
The software is capable of identifying different kinds of errors.
Because it is possible that more than one error can occur over
time, an error buffer is available, which is capable of storing the
last five errors that occurred. This is useful if the OSD is not
working properly.
Errors can also be displayed by the blinking LED procedure.
The method is to repeatedly let the front LED pulse with as
many pulses as the error code number, followed by a period of
1.5 seconds in which the LED is “off”. Then this sequence is
repeated.
Example (1): error code 4 will result in four times the sequence
LED “on” for 0.25 seconds / LED “off” for 0.25 seconds. After
this sequence, the LED will be “off” for 1.5 seconds. Any RC5
command terminates the sequence. Error code LED blinking is
in red colour.
Example (2): the content of the error buffer is “12 9 6 0 0”
After entering SDM, the following occurs:
•1 long blink of 5 seconds to start the sequence,
•12 short blinks followed by a pause of 1.5 seconds,
•9 short blinks followed by a pause of 1.5 seconds,
•6 short blinks followed by a pause of 1.5 seconds,
•1 long blink of 1.5 seconds to finish the sequence,
•The sequence starts again with 12 short blinks.
5.5.2Displaying the Entire Error Buffer
Additionally, the entire error buffer is displayed when Service
Mode “SDM” is entered. In case the TV set is in protection or
Stand-by: The blinking LED procedure sequence (as in SDMmode in normal operation) must be triggered by the following
RC sequence: “MUTE” “062500” “OK”.
In order to avoid confusion with RC5 signal reception blinking,
this blinking procedure is terminated when a RC5 command is
received.
To erase the error buffer, the RC command “MUTE” “062599
“OK” can be used.
5.6TV Main Software Upgrade
For instructions on how to upgrade the TV Main software, refer
to ComPair.
5.7Fault Finding and Repair Tips
Notes:
•It is assumed that the components are mounted correctly
with correct values and no bad solder joints.
•Before any fault finding actions, check if the correct options
are set.
5.7.1NVM Editor
Table 5-5 NVM editor overview
HexDecDescription
.ADR0x000A10Existing value
.VAL0x00000New value
.StoreStore?
5.7.2Load Default NVM Values
It is possible to download default values automatically into the
NVM in case a blank NVM is placed or when the NVM first 20
address contents are "FF". After the default values are
downloaded, it is possible to start-up and to start aligning the
TV set. To initiate a forced default download the following
action has to be performed:
1. Switch “off” the TV set with the mains cord disconnected
from the wall outlet (it does not matter if this is from
"Standby" or "Off" situation).
2. Short-circuit the SDM jumpers on the SSB (keep short
circuited).
3. Press “P+” or “CH+” on the local keyboard (and keep it
pressed).
4. Reconnect the mains supply to the wall outlet.
5. Release the “P+” or “CH+” when the set is “on” or blue LED
is blinking.
When the downloading has completed successfully, the set
should be into Standby, i.e. red LED on.
Alternative method (1):
1. Go to SAM.
2. Select NVM Editor.
3. Select ADR (address) to 1 (dec).
4. Change the VAL (value) to 170 (dec).
5. Store the value.
6. Do a hard reset to make sure new default values took
place.
Alternative method (2):
It is also possible to upload the default values to the NVM with
ComPair in case the SW is changed, the NVM is replaced with
a new (empty) one, or when the NVM content is corrupted.
After replacing an EEPROM (or with a defective/no EEPROM),
default settings should be used to enable the set to start-up and
allow the Service Default Mode and Service Alignment Mode to
be accessed.
5.7.3Start-up/Shut-down Flowcharts
Important note for DVB sets:
•When you put a DVB set into Stand-by mode with an RC,
the set will go to “Semi Stand-by” mode for 5 minutes. This,
to facilitate “Off the Air download” (OAD). If there is no
activity within these 5 minutes, the set will switch to Standby mode. In “Semi Stand-by” mode, the LCD backlight and
Audio Amplifier are turned “off” but other circuits still work
as normal. The customer might think the set is in Stand-by.
However, in real Stand-by mode, only the uP and the NVM
are alive and all other circuits are switched “off”.
•If you press the mains switch at the local key board in a
DVB set, the set will switch to Stand-by mode.
In some cases, it can be convenient if one directly can change
the NVM contents. This can be done with the “NVM Editor” in
SAM mode. With this option, single bytes can be changed.
Caution:
•Do not change the NVM settings without
understanding the function of each setting, because
incorrect NVM settings may seriously hamper the
correct functioning of the TV set!
•Always write down the existing NVM settings, before
changing the settings. This will enable you to return to the
original settings, if the new settings turn out to be incorrect.
On the next pages you will find start-up and shut-down
flowcharts, which might be helpful during fault finding.
It should be noted, that some events are only related to PDP
sets, and therefore not applicable to this LCD chassis.
EN 24LC7.1E LA5.
Start Up
Service Modes, Error Codes, and Fault Finding
Error 6 - NVM
[Protection]
Standby Normal Mode
(RED LED)
Port Assignment in STANDBY
Wait for RC key or
Wake up event
AC ON
+5VSTBY & +3V3STBY Available (1)
160ms
RENEAS POR by +3VSTBY (2)
STANDBYn = LOW
InitCold Component:
1. Check SDM port.
- If SDM pin = LOW and NVM first 20Byte =
0xFF, reload Software default NVM value.
2. Check Panel port.
- If Panel Pin = LOW and check slave address
0x65 = 0xA5, Enter Panel Mode.
No
Last status is ON?
Yes
Read NVM completed.
STOP I²C activities.
LED = BLUE for Normal mode
LED = RED for Recording mode
BLOCK RC Key
M16C RST_H = HIGH
RST_HDMI = LOW
RST_AUD = LOW
RESET_n = LOW
LCD_PWR_ON = LOW
SDI PDP => CTRL_DISP1 = LOW
(1) +5VSTBY to be measured
at PDTC114ET (item 7322)
(2) to be measured at pin 4
of BD45275G (item 7312)
User wake up the sets
in DVB recording mode
LCD_PWR_ON = HIGH
(Same function as CTRL-DISP2)
SDI PDP => CTRL_DISP1 = LOW
20ms
1000ms to
1500ms
Wait for 20 ms
Switch ON LVDSSignal
Init. Warm Component
(For software)
Error 2
[Protection]
Notes:
---------
1. LC07 TV software only start communication with IBOZ once
receive the INT message from IBOZ.
For DVB Sets only (Semistandby)
Recording mode
SDI PDP => CTRL_DISP1 = HIGH
Recording Mode finished
Software Shutdown:
WP for NVM
Port Assignment in STANDBY
Wait for 100ms
Time out = 2000ms
Yes
500ms
100ms
Error 7
Error 8
Error 9
Error 11
1700ms
Error 3
[Protection]
STANDBYn = HIGH
(Same function as CTRL-DISP3)
Wait for 500ms
Is Power Down =
No
BL_ADJ = HIGH (100% Duty Cycle)
HIGH?
Yes
Wait for 100ms
M16C RST_H to LOW
RST_HDMI = HIGH
RST_AUD = HIGH
RESET_n = HIGH
Enable Power Down INT
Enable DC_PROT INT
Initialise Tuner
Initialise IF Demodulator, Afric
TDA9886T
Initialise Micronas
Mute Audio
Initialise HDMI, Sil9023
Initialise Trident CX
DPTVInit( )
Initialise FHP Panel
* For FHP PDP Sets only
Initialise Bolt-ON
* For iTV, 1080P, Ambi Light
For LCD:
BL_ON_OFF = HIGH
* BL_ADJ keep 100% for 3000ms
before dimming.
Blank Picture
Picture Mode Setup & Detection
unBlank Picture &
UnMute Audio
No
Error 5 - Trident
[Protection]
Error 10 – SDRAM 7204
[Protection]
Error 14 – SDRAM 7205
[Protection]
Error 17 – AmbiLight
Error 18 – iTV iFace
End
For PDP:
3000ms delay
STANDBYn = LOW
Standby
Normal Mode
Enable RC Key
DVB recording mode
Figure 5-7 Start-up flowchart
Error 19 – 1080P
G_16860_070.eps
220207
Service Modes, Error Codes, and Fault Finding
EN 25LC7.1E LA5.
SEMISTANDBY/ STANDBY
300ms
20ms
Start
Mute Audio
BL_ADJ stop dimming
(PWM duty cycle 100%)
BL_ON_OFF = LOW
Wait 300ms
Switch OFF LVDS
Wait 20ms
LCD_PWR_ON = LOW
LED = REDNo
For DVB Sets only (Semistandby)
Wait for 3000ms
Except power tact switch
SDI PDP => CTRL_DISP1 = HIGH
Off Air Downloading/ Recording Mode
IBOZ send shut down command
Software Shutdown:
Standby using
“power key”
Yes
LED = NO LED
for Standby soft mode
Disable Power Down INT &
DC_PROT_INT
BL_ADJ = LOW
(PWM duty cycle 0%)
WriteProtect for NVM
Port Assignment in STANDBY
Sets go to standby here
40ms
Total = 360ms
STANDBYn = LOW
Wait for 3000ms
End
Figure 5-8 Semi Stand-by/Stand-by flowchart
Blocking for the next start up to ensure
power supply discard properly.
G_16860_071.eps
220207
EN 26LC7.1E LA5.
Service Modes, Error Codes, and Fault Finding
Power Down INT:
AC OFF or Transient INT
Start
Notes:
1. Power Down INT will be based on fall edge triggering
2. +3V3STBY will stay for 15ms, software must perform
WriteProtect for NVM within 15ms.
Avoid false trigger
No
End
Poll the Power Down
INT for 5 times
Yes
Mute Audio & VIdeo
WriteProtect for NVM
STANDBYn = LOW
Wait 5000 ms
Re-start: Start up
End
DC_PROT INT
Avoid false trigger
No
End
Error 1
[Protection]
Start
is DC_PROT = LOW
for 3 sec?
Yes
Mute Audio & VIdeo
Log Error Code
WriteProtect for NVM
STANDBYn = LOW
End
G_16860_072.eps
220207
Figure 5-9 Power Down & DC_PROT flowchart
Block Diagrams, Test Point Overview, and Waveforms
6.Block Diagrams, Test Point Overview, and Waveforms
Wiring Diagram 32”
WIRING 32” LCD (STYLING ME7)
LCD DISPLAY
(1004)
LVD S
30P
27LC7.1E LA6.
CN2
14P
8521
14P
12P
CN2
CN3
SUPPLY
(1005)
CN6
CN7
8C01
9P
8520
8P11
8735
9P
1C01
SSB
B
8P
8P
1P11
8G51
30P
1G51
7P
1M20
11P
1304
4P
1735
8735
12P
CN3
INVERTERINVERTER
2P3
CN1
SIDE I/O
D
(1116)
8002
KEYBOARD CONTROL
E
(1114)
RIGHT SPEAKER
INLET
8191
8192(UK)
8304
LEFT SPEAKER
11P
3P
1M01
1304
8M20
J
7P
1M01
1M20
IR/LED/LIGHT
SENSOR
(1112)
G_16860_034.eps
8M01
3P
200207
Block Diagrams, Test Point Overview, and Waveforms
Wiring Diagram 37”-42”
WIRING 37”- 42” LCD (STYLING ME7)
8521
8520
8C01
8P11
28LC7.1E LA6.
LCD DISPLAY
(1004)
LVDS
30P
8G51
9P
X412
8P
X406
14P
X404
12P
X403
SUPPLY
(1005)
14P
CN2
9P
INVERTERINVERTER
B
2P3
CN1
8002
1C01
SSB
8P
1P11
30P
1G51
7P
1M20
11P
1304
4P
1735
8735
D
SIDE I/O
(1116)
12P
CN3
KEYBOARD CONTROL
E
(1114)
RIGHT SPEAKER
INLET
8191
8192(UK)
LEFT SPEAKER
8304
11P
1304
8M20
7P
1M20
IR/LED/LIGHT
J
SENSOR
(1112)
3P
8M01
3P
1M01
H_16940_012.eps
050307
1M01
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Supply
SUPPLY 32” LCD
29LC7.1E LA6.
DISPLAY SUPPLY
1. +24V
DISPLAY SUPPLY
1. +24V
2. +24V
3. +24V
4. +24V
5. +24V
6. GND
7. GND
8. GND
9. GND
10. GND
11. N.C.
12. N.C.
2. +24V
3. +24V
4. +24V
5. +24V
6. GND
7. GND
8. GND
9. GND
10. GND
11. DIM
12. BL-ON
13. PWM
14. N.C.
CN1
AC-IN
220 - 240V
50/60Hz
CN3
CN6
CONTROL:
1. BL-DIM
2. PG
3. BL-ON
4. GND
5. N.C.
6. PSON
7. N.C.
8. 12V.
CN2
CN7
CONTROL:
1. -12VA
2. +12VA
3. GND
4. 5.2VS
5. 5.2VS
6. 5.2VS
7. GND
8. GND.
9. GND
PRIMARY SIDE
SECONDARY SIDE
G_16860_035.eps
200207
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Video
VIDEO
B03A
TUNER IF & DEMODULATOR
MAIN
+VTUN
IF_OUT3
9
11
1
1101
TD1318S/A
TUNER
4120
3111
IF_ATV
RF_AGC
30LC7.1E LA6.
B04B
VIDEO PROCESSOR
7113
TDA9886T/V4
1102
1
1103
1
VIF1
5
VIF2
4
SIF1
5
SIF2
4
VIF1
1
2
VIF2
SIF1
23
SIF2
24
TAGC
14
B06B
IO - SCART 1 & 2
1
21
2x SCART
YPBPR & REAR IO
B06A
Pr
Y
Pb
D
SIDE FACING SIDE AV
VIDEO
5
S VIDEO
B06C
HDMI
1
182
19
1
182
19
2x HDMI
CONNECTOR
1504
EXT1
1506
EXT2
1615
1302
1301
1
1810
1811
19
15
11
7
20
16
8
19
20
15
8
3
4
2
1
3
4
6
7
9
10
12
19
1
3
4
6
7
9
10
12
19
SIF AGC
TUNER AGC
FRONT_Y_CVBS_IN
7814
7860
+5VS
SUPPLY
VIF-PLL
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER AND
AM-DEMODULATOR
VIF AGC
7503
3535
EF
3528
3523
3516
3545
3528
3518
3529
3550
3618
7500
EF
RX2+A
RX2-A
RX1+A
RX1-A
RX0+A
RX0-A
RXC+A
RXC-A
RX2+B
RX2-B
RX1+B
RX1-B
RX0+B
RX0-B
RXC+B
RXC-B
3522
3552
3617
3619
FRONT_C_IN
HDMI_HOTPLUG_RESET
HDMI_HOTPLUG_RESET
DEMODULATOR
SOUND TRAPS
4.5 to 6.5 Mhz
1304
3537
3521
2
4
B04A
B04A
MAD
SCL
SDA
SC1_RF_OUT_CVBS
SC2_CVBS_MON_OUT
B04A
MICROPROCESSOR
1304
2
4
7817
SII9025CTU
52
+
R0X2
51
-
48
+
R0X1
47
-
44
+
R0X0
43
-
40
+
R0XC
39
-
71
+
R1X2
70
-
67
+
R1X1
66
-
63
+
R1X0
62
-
59
+
R1XC
58
-
I2C-BUS TRANSCEIVER
SC1_STATUS
SC2_STATUS
CVBS
B04A
B04A
ADC
HDMI
(MAIN)
17
15
1104
4M0
FRONT_Y_CVBS_IN_T
121
ODCK
1
DE
2
HSYNC
3
VSYNC
7114
EF
CVBS_RF
SC1_R_IN
SC1_G_IN
SC1_B_IN
SC1_CVBS_IN
SC1_FBL_IN
SC2_Y_CVBS_IN
SC2_C_IN
HD_Pr_IN
HD_Y_IN
HD_Pb_IN
FRONT_C_IN_T
HDMI_VCLK
HDMI_DE
HDMI_H
HDMI_V
HDMI_Cb(0-7)
HDMI_Y(0-7)
HDMI_Cr(0-7)
7202
SVP CX32-LF
169
CVBS1
163
CVBS_OUT1
189
PR_R2
181
Y_G2
197
PB_B2
198
PB_B3
173
FB1
162
CVBS_OUT2
190
PR_R3
70
FS2
188
PR_R1
180
Y_G1
196
PB_B3
182
Y_G3
192
C
23
DP-CLK
6
DP_DE_FLD
4
DP_HS
5
DP_HS
ANALOG
MUX
DIN_PORTD
(24BIT)
VIDEO
PROCESSOR
XTALI
XTALO
MEMORY
8-BIT
SINGLE
LVD S TX
TCLK1
TA1
TB1
TC1
TD1
205
204
51
50
49
48
45
44
43
42
41
40
DQ(0-31)
CX_MA
1201
14M31
(0-11)
(0-15)
(0-11)
(16-31)
TXAn
TXAp
TXBn
TXBp
TXCn
TXCp
TXCLKn
TXCLKp
TXDn
TXDp
7204
IS42S16400D-6TL
DRAM
1Mx16x4
7205
IS42S16400D-6TL
DRAM
1Mx16x4
1210
1211
1212
1213
1214
TXAn1
TXAp1
TXBn1
TXBp1
TXCn1
TXCp1
TXCLKn1
TXCLKp1
TXDn1
TXDp1
VDISP
BOLT_ON_SCL
BOLT_ON_SDA
H_16940_001.eps
1G51
270207
1
3
5
7
2
4
6
8
12
14
18
20
24
26
27
29
LVDS
CONNECTOR
TO DISPLAY
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Audio
AUDIO
TUNER IF & DEMODULATOR
B03A
31LC7.1E LA6.
B04C
AUDIO PROCESSOR
B07
AUDIO
1101
TD1318S/A
MAIN
TUNER
B04A
+VTUN
9
IF_OUT3
SAW_SW
7113
TDA9886T/V4
1102
11
IF-ATV
1
3111
1
1103
1
6103
7109
I0 - SCART 1 & 2
B06B
D
SIDE FACING SIDE AV
B06A
YPBPR &REAR IO
VIF1
5
VIF2
4
SIF1
5
SIF2
4
RF_AGC
2x SCART
AUDIO
L/R IN
AUDIO
L/R IN
VIF1
1
2
VIF2
23
SIF1
SIF2
24
TAGC
14
12
1504
1
2
1
3
6
EXT1
1506
1
2
3
21
6
EXT2
1302
1615
SIF AGC
TUNER AGC
SC1_AUDIO _OUT_R
SC1_AUDIO _OUT_L
L_FRONT_IN
R_FRONT_IN
COMP_AUDIO_IN_L
COMP_AUDIO_IN_R
+5VS
SUPPLY
VIF-PLL
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER AND
AM-DEMODULATOR
VIF AGC
SC2_AUDIO _OUT_R
SC1_AUDIO _OUT_L
1304
DEMODULATOR
SOUND TRAPS
4.5 to 6.5 Mhz
MAD
I2C-BUS TRANSCEIVER
SCL
SC1_AUDIO _MUTE_R
SC1_AUDIO _MUTE_L
SC2_AUDIO _MUTE_R
SC2_AUDIO _MUTE_L
MICROPROCESSOR
B04A
1304
6
6
8
8
CVBS
12
SIOMAD
15
SDA
B06D
SC1_AUDIO_IN_R
SC1_AUDIO_IN_L
B06D
B06D
SC2_AUDIO_IN_R
SC2_AUDIO_IN_L
B06D
SIDE_AUDIO_IN_L_CON
SIDE_AUDIO_IN_R_CON
COMP_AUDIO_IN_L
COMP_AUDIO_IN_R
SIF 50
1104
4M0
7411
MSP4450P-VK-E8 000 Y
ANA-IN1+
7
DA1
4
CL
5
WS
67
XTALIN
68
XTALOUT
1411
18M432
36
SC1-OUT-R
53
SC1-IN-R
37
SC1-OUT-L
54
SC1-IN-L
33
SC2-OUT-R
53
SC2-IN-R
34
SC2-OUT-L
52
SC2-IN-L
48
SC4-IN-L
49
SC4-IN-R
50
SC3-IN-L
51
SC3-IN-R
SOUND
PROCESSOR
DACM-L
DACM-R
SUPPLY
DACA-L
DACA-R
7A01
TDA8932T/N1
27
26
AUDIO-LS_L
AUDIO-LS_R
3A03
3A11
9
1
CLASS D
5A03
27
POWER
6
5
B04A
AMPLIFIER
22
DC_PROT
SIDE FACING SIDE AV
D
7A05÷7A07
DC-DETECTION
5A04
STANDBYn
B04A
ENGAGE
12
13
39
38
40
+5V_D
+8V
+5V_AUD
HEADPHONE AMP & MUTING
B06D
B04A
MICRO
3A19
3A26
1735
1
2
3
4
LEFT
SPEAKER
RIGHT
SPEAKER
PROCESSOR
7901
24
23
HP_AUDIO_OUT_L
HP_AUDIO_OUT_R
ANTI_PLOP
B04A
POWER_DOWN
B04A
B04A
B04A
STANDBY
MUTEn
MUTING
CONTROL
HP_LOUT
HP_ROUT
SC1_AUDIO _MUTE_R
SC1_AUDIO _MUTE_L
SC2_AUDIO _MUTE_R
SC2_AUDIO _MUTE_L
1304
1304
6
8
6
8
B06B
HEAD_PH_L
HEAD_PH_R
1303
2
3
5
HEADPHONE
B06C
1
182
19
2x HDMI
CONNECTOR
HDMI
1
182
19
RXxxA
RXxxB
7817
SII9025CTU
+
RX2
-
HDMI
+
RX1
+
RX0
+
RXC
-
SCK
WS
SD0
MUTE
86
HDMI_I2S_SCK
85
HDNI_I2S_WS
84
HDMI_I2S_SD
77
7810
UDA1334ATS/N2
AUDIO
DAC
1
BCK
2
WS
3
DAT AI
8
MUTE
VOUTL
VOUTR
HDMI_AUDIO_IN_L
14
HDMI_AUDIO_IN_R
16
57
58
SC5-IN-L
SC5-IN-R
H_16940_002.eps
270207
Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Control & Clock Signals
CONTROL & CLOCK SIGNALS
B04B
VIDEO PROCESSOR
7204
IS42S16400D-6TL
DRAM
1Mx16x4
7205
IS42S16400D-6TL
DRAM
1Mx16x4
37
38
37
38
DQ(0-31)
CX_MA(0-11)
CX_CLKE
CX_MCLK
7202
SVP CX32-LF
PROCESSOR
112
111
43
42
VIDEO
TXCLKn
TXCLKP
B04A
MICROPROCESSOR
AD(0-7)
A(0-7)
TXCLKn1
TXCLKP1
7311
M30300SAGP
1G51
18
20
TO DISPLAY
(LVDS)
32LC7.1E LA6.
B06C
HDMI
1
RXxxA
182
19
1
RXxxB
182
19
2x HDMI
CONNECTOR
E
KEYBOARD CONTROL
CHANNEL +
CHANNEL -
MENU
VOLUME -
VOLUME +
ON / OFF
7817
SII9025CTU
+
R0
-
+
R1
-
102
1011
1012
1013
1014
1015
1016
121
HDMI_Cb(0-7)
HDMI_Y(0-7)
HDMI_Cr(0-7)
HDMI_CCLK
23
KEYBOARD
61
62
63
84
86
56
1M01
2
7310
M29W800DT
EPROM
1Mx8
512Kx16
28
11
B06B
B06B
B07
B06C
26
12
+3V3_STBY
5
RST
7312
BD45275G
4
VOUT
2,3
INT
SC1_STATUS
SC2_STATUS
DC_PROT
HDMI_INT
AD(0-7)
A(0-19)
CE
CPU_RST
(3V3)
CS
WR
RD
ALE_EMU
RST_H
48
PROCESSOR
10
45
44
42
38
4
18
36
91
90
71
104
MICRO
13
1301
10M
11
9
8
74
75
72
78
89
HDMI_HOTPLUG_RESET
88
3
7322
4
100
ITV_SPI_CLK
ITV_SPI_DATA_IN
ANTI_PLOP
BL_ON_OFF
POWER_DOWN
MUTEn
RST_AUD
STANDBYn
STANDBY
RST_H
E_PAGE
1312
6
5
ITV_CONNECTOR A
B06D
B02
B6D
B06D
B06C
B04C
B04B
B07
B02 B06D
B04B
7315
M24C64-WMN6P
EEPROM
7
8Kx8
J
IR/LED/LIGHT-SENSOR
+5V2-STBY
+5V2-STBY
+5V2_STBY
3010
6010
6011
7010
LED1
BLEU
LED2
RED
3012
3013
IR
SENSOR
7011
7012
LED1
LED2
RC
N.C.
1M01
2
1M20
1M20
7
66
44
33
11
7
KEYB
LED1
LED2
REMOTE
LIGHT_DENSOR
93
95
87
18
2
99
19
23
21
25
3361
LCD_PWR_ON
DCC_RESET
+3V3_STBY
3366
SAW_SW
DVB_SW
4301
B04B
B06C
B03A
B03A
SDM
H_16940_003.eps
270207
Block Diagrams, Test Point Overview, and Waveforms
Block Diagrams, Test Point Overview, and Waveforms
+3V3_STBY
+3V3_SW
B06C
HDMI
34LC7.1E LA6.
AUDIO PROCESSOR
B04C
VIDEOPROCESSOR
B04B
TUNER IF & DEMODULATOR
B03A
SDA2
SCL2
7311
M30300SAGP
MICRO
PROCESSOR
TXD1
RXD1
28
27
29
30
3382
3378
AD(0-7)
A(0-19)
IIC_SDA_up
IIC_SCL_up
7310
M29W800DT
EPROM
1Mx8
512Kx16
PROT
04
(NOT STUFFED)
3379
3355
3357
56
7315
M24C64
EEPROM
(NVM)
ERR
06
+3V3_STBY
3L07
+3V3_STBY
3377
3L06
7320
3343
3345
COMPAIR
SERVICE
CONNECTOR
3L09
3L08
CONNECTOR
(FOR DEVELOPMENT ONLY)
VIDEO PROCESSOR
B04B
7321
1314
1311
UART
3305
3388
IIC_SDA
IIC_SCL
3120
3410
3896
+5V_SW
1810
1
16
1
3
2
15
182
19
1811
1
16
15
182
19
2x HDMI
CONNECTOR
56
7850
M24C02
EEPROM
DOC_SDAA
DOC_SCLA
DOC_SDAB
DOC_SCLB
56
7811
M24C02
EEPROM
+3V3_SW
7851-7852
7812-7813
3897
31
SII9025CTU
32
CONTROL
29
30
2728
7817
HDMI
ERR
11
3411
32
7411
MSP4450P
SOUND
PROCESSOR
ERR
09
7204
IS42S16400D
DRAM
1Mx16x4
ERR
10
7205
IS42S16400D
DRAM
1Mx16x4
ERR
14
SVP CX32-LF
3212
3215
5857
7202
VIDEO
PROCESSOR
ERR
05
DEMODULATOR
3128
3129
1011
7113
TDA9886T/V4
ERR
08
TD1316AF/IHP
3121
54
1101
TUNER
ERR
07
1
3
2
RXD0
TXD0
3354
33
34
3356
BOLT_ON_SDA
BOLT_ON_SCL
3351
3352
3247
3246
1G51
27
29
(LVDS CONNECTOR)
H_16940_004.eps
270207
Block Diagrams, Test Point Overview, and Waveforms
Supply Lines Overview
SUPPLY LINES OVERVIEW
DC-DC
B02
CN6
X406
1P11
77
88
CN7
X412
1CO1
11
22
44
55
66
77
88
99
B04A
SUPPLY
5B01
7B01
DOWN
X405
1
TO 1710
F7
2
1080P
STANDBY
STEP
REG.
7
3B13
7B02
IN OUT
7B04
IN OUT
7B06
IN OUT
7B08
IN OUT
7B03
13
4C57÷4C60
COM
COM
COM
COM
RES
7B05
6B03
5B06
5B03 5B02
+5V_STANDBY
+12V_DISP
-AUDIO_POWER
+AUDIO_POWER
+5V_STANDBY
+5V_SW
+3V3_STBY
+5V_SW
ONLY FOR LCD
+3V3_SW
+3V3_MOJO
+1V2_MOJO
+VTUN
(34V)
+1V8S_SW
B04b,c
B07
B07
B04a,B06d
B04a
B03a,b,c,e,
B04c,
B06a,b,c,d
B03a,f,B04a,b,
B06c
B03f
B03d
B03a
B03b,B04b
B02
B02
B02
B02
B02
B03f
B02
B03f
B02
B02
B03f
B03f
B03f
B02
B02
TUNER IF & DEMODULATOR
B03A
+3V3_SW+3V3_SW
+5V_SW+5V_SW
3133
3134
+VTUN+VTUN
+12V_DISP+12V_DISP
DVB-DEMODULATOR
B03B
+1V8S_SW+1V8S_SW
+3V3+3V3
5F10
+5V_SW+5V_SW
DVB-COMMON INTERFACE
B03C
+3V3+3V3
5K03
5K04
5K05
+5V_SW+5V_SW
B03D
+1V2_MOJO+1V2_MOJO
+3V3
+3V3clean
B03E
+3V3
+5V_SW+5V_SW
B03F
+3V3_MOJO
+1V8S_SW
7K05
IN OUT
COM
DVB-MOJO
5G04
DVB-MOJO MEMORY
5H02
DVB-MOJO ANALOF BACK END
5JO1
IJ01
CONTROL
5114
5115
ONLY FOR ANALOG TV
5K01
5K02
7J04
+5VS
+5V_IF
+3V3FE
+3V3_STV
+3V3_CORE
+3V3_BUF
PCMCIA_5V
PCMCIA_AVCC
PCMCIA_VPP
+3V3
+3V3_VDDP
+3V3clean
+3V3
+3V3_NOR48
+3V3_MOJO
+3V3clean
+3V3
B02
B02
B02
B02
B02
B02
B02
B02
B02
B02
35LC7.1E LA6.
B03d
B03b,c,d
MICROPROCESSOR
B04A
+3V3_STBY
+3V3_SW
+5V_STANDBY
VIDEO PROCESSOR
B04B
+1V8S_SW+1V8S_SW
3244
3248
5224
5226
5220
5222
5225
5227
+3V3_SW+3V3_SW
5219
5223
5218
5221
+12V_DISP+12V_DISP
7210
7208
CONTROL
AUDIO PROCESSOR
B04C
+12V_DISP+12V_DISP
4401
7410
IN OUT
COM
+5V_SW+5V_SW
3402
YPBPR & REAR IO
B06A
+5V_SW+5V_SW
IO - SCART 1 & 2
B06B
+5V_SW+5V_SW
5401
5402
+3V3_STBY
+3V3_SW
+5V_STANDBY
3L10
5304
CX_PAVDD1
CX_PAVDD2
CX_PDVDD
CX_PAVDD
CX_AVDD_ADC1
CX_AVDD_ADC2
CX_AVDD_ADC3
CX_AVDD_ADC4
CX_AVDD3_BG_ASS
CX_AVDD3_OUTBUF
CX_AVDD3_ADC1
CX_AVDD3_ADC2
5215
5217
+AUDIO_POWER_+12V_DISP
VDISP
LCD_PWR_ON
ONLY FOR LCD
+8V
+5V_D
+5V_AUD
B04A
1M20
1G51
IO - SCART 1 & 2
B06B
1G52
41
TO
SUPPLY
1M20
B04A
SSB
TO
DISPLAY
F7
F7
F7
F7
F7
F7
F7
F7
F7
F7
F7
F7
F7
F7
F4
B02
5
IR/LED
B02
B02
B02
B02
B02
B02
1
1080P
F7
F7
F7
F7
F7
F7
1G51
B04B
SSB
F3
+5V_SW+5V_SW
HDMI
B06C
1M20
J
+3V3_SW+3V3_SW
+5V_SW+5V_SW
CONNECTOR-1
CONNECTOR-2
B06D
+3V3_STBY+3V3_STBY
+5V_SW+5V_SW
B07
+AUDIO_POWER+AUDIO_POWER
-AUDIO_POWER-AUDIO_POWER
1G51
F3
F1
+3V3_SW
F2
+3V3_IO
+3V3_SW
F3
+3V3_LVDSA
+3V3_LVDSVCC
+3V3_LVDSD
1G51
40
F4
+VDISP
1810
HDMI
18
1811
HDMI
18
HEADPHONE AMP & MUTING
AUDIO
3A01
5A05
4A01
5A07
RES
3A02
5A06
OCM ON CHIP MICROCONTROLLER
FLASH & NVM
LVD S IN
LVD S OUT
+5VHDMI_A
+5VHDMI_B
VDDA
VDD
+AUDIO_POWER_+12V_DISP
VSSA
VSS
+3V3_SW
(ONLY FOR 1080P)
+3V3_IO
+3V3_SW
(ONLY FOR 1080P)
+3V3_LVDSA
+3V3_LVDSVCC
+3V3_LVDSD
+VDISP
(ONLY FOR 1080P)
+VDISP
(ONLY FOR 1080P)
SUPPLY IN
F5
+1V8_CORE
+1V8_DVI
+1V8_ADC
+3V3_IO
+3V3_ADC
+3V3_SW
+3V3_PLL
+3V3_LVDSA
+3V3_LVDSD
+3V3_LBADC
+3V3_D
VI
LVD S IN
F6
+1V8_CORE
+2V5_DDR_MAL
+3V3_SW
DC POWER SUPPLY
F7
1710
5A07
1
7701-1
7710
11
1M20
5
STEP
DOWN
REG.
J
7
5A07
7701-2
14
7713
IN OUT
COM
7714
IN OUT
COM
IR/LED/LIGHT-SENSOR
+5V_STANDBY+5V_STANDBY
5716
5717
5718
5719
5720
5721
5722
5723
5724
+1V8_CORE
+1V8_DVI
+1V8_ADC
+3V3_IO
+3V3_ADC
+3V3_SW
+3V3_PLL
+3V3_LVDSA
+3V3_LVDSD
+3V3_LBADC
+3V3_DVI
(ONLY FOR 1080P)
+1V8_CORE
+2V5_DDR_MAL
+3V3_SW
(ONLY FOR 1080P)
+12V
+3V3
+3V3_IO
+3V3_LVDSA
+3V3_LVDSD
+3V3_LBADC
+3V3_ADC
+3V3_SW
+3V3_DVI
+3V3_PLL
+3V3_LVDSVCC
+2V5
+2V5_DDR_MAL
5715
+1V8
5712
+1V8_CORE
5713
+1V8_ADC
5714
+1V8_DVI
(ONLY FOR 1080P)
F2,F5
F3,F5
F3,F5
F5
F5
F1,F2,
F5,F6
F5
F5
F3
F6
F5,F6
F5
F5
G_16860_040.eps
090307
Circuit Diagrams and PWB Layouts
7.Circuit Diagrams and PWB Layouts
SSB: DC/DC
36LC7.1E LA7.
123456789
DC - DC
B02B02
1n0
GNDSND
-12V2
+12V2
FB32
FB33
35V4u7
4
10n
2C61
RES
2C56
2C59
RES
+5V_STANDBY
1
567
FB21
FB23
FB25
100n
32
2
3
SI4423DY
1C01
FB22
FB24
FB26
FB28FB27
FB29
FB30
FC25
FB31
B9B-PH-K
1P11
2V9
2V8
1V6
0V(5V)
B8B-PH-K-S
7B02
LD1117DT33C
OUTIN
COM
1
7B05
8
2B24
+5V_SW
1
2
3
4
5
6
7
8
9
TO / FROM PSU
1
2
3
4
5
6
7
8
TO / FROM PSU
FB13
2B18
10u 16V
16V
100n
2B25
47u
+3V3_STBY
Item
+5V_SW
5B01
10u
2B12
GNDDC
EU-LCD
EU-PDP
FB10
L5973D
2
22u
Description
EU iTV - LCD
R)HSIV(50B7
7B01
3
8
Φ
INH
SYNC
GND GND_HS
7
LOC 5MP 8K6 3060 MS TSR71B3
LOC 5MP 8K6 3060 MS TSR81B3
LOC 50R0 .PMUJ 3060 MS TSR55C4
LOC 50R0 .PMUJ 3060 MS TSR65C4
LOC 50R0 .PMUJ 3060 MS TSR75C4
LOC 50R0 .PMUJ 3060 MS TSR85C4
LOC 50R0 .PMUJ 3060 MS TSR95C4
LOC 50R0 .PMUJ 3060 MS TSR06C4
LOC 50R0 .PMUJ 3060 MS TSR16C4
LOC 50R0 .PMUJ 3060 MS TSR26C4
R )00TS( C33TD7111DL MS CI60B7
R )00TS( TD7111DL MS CI80B7
R LOC 02MP 7U4 V53 MS PACLE22B2
R LOC 02MP U01 V61 MS PACLE32B2
R LOC 02MP U01 V61 MS PACLE62B2
1217FIL CM SM 50V 100MHZ 67R R
1218FIL CM SM 50V 100MHZ 67R R
2207CER2 0603 X7R 16V 100N COL
2208ELCAP SM SEV 25V 100U PM20 R
2209ELCAP SM SEV 25V 100U PM20 R
2210CER2 0603 X7R 16V 100N COL
2248CER2 0805 X7R 16V 1U PM10 R
2267CER2 0603 X7R 16V 100N COL
2294CER2 0603 X7R 16V 100N COL
3213RST SM 0603 47K PM5 COL
3216RST SM 0603 47R PM5 COL
3217RST SM 0603 47K PM5 COL
3227RST SM 0603 100R PM5 COL
3233RST SM 0603 100R PM5 COL
3235RST SM 0603 100R PM5 COL
3238RST SM 0603 100R PM5 COL
3241RST SM 0603 220R PM5 COL
3242RST SM 0603 4K7 PM5 COL
3243RST SM 0603 100R PM5 COL
3245RST SM 0603 10K PM5 COL
3246RST SM 0603 100R PM5 COL
3247RST SM 0603 100R PM5 COL
3250RST SM 0603 22R PM5 COL
3253RST SM 0603 22R PM5 COL
3254RST SM 0603 22R PM5 COL
3256RST SM 0603 22R PM5 COL
3257RST SM 0603 10K PM5 COL
3258RST SM 0603 10K PM5 COL
4204RST SM 0603 JUMP. 0R05 COL
4205RST SM 0603 JUMP. 0R05 COL
4206RST SM 0603 JUMP. 0R05 COL
4208RST SM 0603 JUMP. 0R05 COL
4209RST SM 0603 JUMP. 0R05 COL
5215IND FXD 0805 EMI 100MHZ 220R R
5217IND FXD 0805 EMI 100MHZ 220R R
6202DIO REG SM BZX384-C5V6 COL R
7203TRA SIG SM BC847BW (COL) R
7206TRA SIG SM BC847BW (COL) R
7208TRA SIG SM PDTC114ET (COL) R
7210
7211IC SM 74LCX14T (COL) R
4403RST SM 0603 JUMP. 0R05 COL
4406RST SM 0603 JUMP. 0R05 COL
4407RST SM 0603 JUMP. 0R05 COL
4408RST SM 0603 JUMP. 0R05 COL
4411RST SM 0603 JUMP. 0R05 COL
1504SO C E URO V 21P F BK R-GRND B
1506SO C E URO V 21P F BK R-GRND B
1525CON V 5P M 1.00 SM SR R
1526CON V 8P M 1.00 SM SR R
3516RST SM 0603 100R PM5 COL
1901CON V 4P M 1.00 SM SR R
2901CER1 0603 NP0 50V 33P COL
2902CER2 0603 Y5V 10V 470N COL
2903ELCAP SM 16V 100U PM20 COL R
2904CER2 0603 Y5V 10V 470N COL
2905CER1 0603 NP0 50V 33P COL
2906ELCAP SM 16V 100U PM20 COL R
2907CER2 0603 Y5V 10V 470N COL
2909CER2 0603 X7R 50V 10N COL
2910CER2 0603 X7R 50V 10N COL
2911CER2 0603 X7R 50V 10N COL
2912CER2 0603 X7R 50V 10N COL
3901RST SM 0603 47K PM5 COL
3902RST SM 0603 RC21 120K PM5 R
3904RST SM 0603 33R PM5 COL
3905RST SM 0603 47K PM5 COL
3906RST SM 0603 100K PM5 COL
3907RST SM 0603 100K PM5 COL
3908RST SM 0603 RC21 120K PM5 R
3910RST SM 0603 33R PM5 COL
3917RST SM 0603 1K PM5 COL
3918RST SM 0603 1K PM5 COL
4902RST SM 0603 JUMP. 0R05 COL
4903RST SM 0603 JUMP. 0R05 COL
7901IC SM TS482ID (ST00) R
7911TRA SIG SM BC847BW (COL) R
7912TRA SIG SM BC847BW (COL) R
SRP (Service Reference Protocol) is a software tool that creates a list with all references to signal lines. The list contains
references to the signals within all schematics of a PWB. It replaces the text references currently printed next to the signal
names in the schematics. These printed references are created manually and are therefore not guaranteed to be 100%
correct. In addition, in the current crowded schematics there is often none or very little place for these references.
Some of the PW
reference list for a schematic, or there will be printed references in the schematic.
1.2. Non-SRP Schematics
There are several different signals available in a schematic:
1.2.1.Power Supply Lines
All power supply lines are available in the supply line overview (see chapter 6). In the schematics (see chapter 7) is not
indicated where supplies are coming from or going to.
It is however indicated if a supply is incoming (created elsewhere), or outgoing (created or adapted in the current schematic).
Outgoing Incoming
1.2.2. Normal Signals
For normal signals, a schematic reference (e.g. B14b) is placed next to the signals.
B14b
1.2.3. Grounds
For normal and special grounds (e.g. GNDHOT or GND3V3 etc.), nothing is indicated.
1.3. SRP Schematics
SRP is a tool, which automatically creates a list with signal references, indicating on which schematic the signals are used.
A reference is created for all signals indicated with an SRP symbol, these symbols are:
namename
namename
name
name
Remarks:
• When there is a black dot on the "signal direction arrow" it is an SRP symbol, so there will be a reference to the signal
name in the SRP list.
• All references to normal grounds (Ground symbols without additional text) are not listed in the reference list, this to keep
it concise.
• Signals that are not used in multiple schematics, but only once or several times in the same schematic, are included
in the SRP reference list, but only with one reference.
Additional Tip:
When using the PDF service manual file, you can very easily search for signal names and follow the signal over all the
schematics. In Adobe PDF reader:
• Select the signal name you want to search for, with the "Select text" tool.
• Copy and paste the signal name in the "Search PDF" tool.
• Search for all occurrences of the signal name.
• Now you can quickly jump between the different occurrences and follow the signal over all schematics. It is advised to
"zoom in" to e.g. 150% to see clearly, which text is selected. Then you can zoom out, to get an overview of the complete
schematic.
PS. It is recommended to use at least Adobe PDF (reader) version 6.x, due to better search possibilities in this version.
3104 313 6261.1
B schematics will use SRP while others will still use the manual references. Either there will be an SRP
+5V+5V
signal_name
+5V+5V
namename
Bi-directional line (e.g. SDA) into a wire tree.
Signal line into a wire tree, its direction depends on the circuit (e.g. ingoing for PDP, outgoing for LCD sets).
Circuit Diagrams and PWB Layouts
Power supply line.
Stand alone signal or switching line (used as less as possible).
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 Alignmen t Co nd it io n s
Perform all electrical adjustments under the following
conditions:
•Power supply voltage (depends on region):
– AP-NTSC: 120 V
– AP-PAL-multi: 120 - 230 V
– EU: 230 V
AC
– LATAM-NTSC: 120 - 230 V
– US: 120 V
AC
or 230 VAC / 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
/ 50 Hz (± 10%).
AC
/ 60 Hz (± 10%).
•Connect the set to the mains via an isolation transformer
with low internal resistance.
•Allow the set to warm up for approximately 15 minutes.
•Measure voltages and waveforms in relation to correct
ground (e.g. measure audio signals in relation to
AUDIO_GND).
Caution: It is not allowed to use heatsinks as ground.
•Test probe: Ri > 10 Mohm, Ci < 20 pF.
•Use an isolated trimmer/screwdriver to perform
alignments.
8.2Hardware Alignments
There are no hardware alignments foreseen for this chassis,
but below find an overview of the most important DC voltages
on the SSB. These can be used for checking proper functioning
of the DC/DC converters.
With the software alignments of the Service Alignment Mode
(SAM) the Tuner and RGB settings can be aligned.
To store the data: Use the RC button “Menu” to switch to the
main menu and next, switch to “Stand-by” mode.
8.3.1Tuner Adjustment (RF AGC Take Over Point)
Purpose: To keep the tuner output signal constant as the input
signal amplitude varies.
The LC7.xx chassis comes with two tuner types: the UV1318S
for the analogue sets (LC7.1x) and the TD1316AF for the
hybrid sets (LC7.2x).
For the digital tuner TD1316AF, no alignment is necessary, as
the AGC alignment is done automatically (standard value:
“15”), even during analogue reception.
The analogue tuner UV1318S can also use the default value of
“15”, however in case of problems use the following method
(use multimeter and RF generator):
•Apply a vision IF carrier of 38.9 MHz (105 dBuV = 178
mVrms) to test point F111 (input via 50 ohm coaxial cable
terminated with an RC network of series 10nF with 120
ohm to ground).
•Measure voltage on pin 1 of the tuner.
•Adjust AGC (via SAM menu: TUNER -> AGC), until voltage
on pin 1 is 3.3 +0.5/-1.0 V.
•Store settings and quit SAM.
8.3.2RGB Alignment
Before alignment, choose “TV MENU” -> “Picture” and set:
•“Brightness” to “50”.
•“Colour” to “50”.
•“Contrast” to “100”.
White Tone Alignment:
•Activate SAM.
•Select “RGB Align.” -> “White Tone” and choose a colour
temperature.
•Use a 100% white screen as input signal and set the
following values:
– All “White point” values initial to “256”.
– All “BlackL Offset” values to “0”.
In case you have a colour analyser:
•Measure with a calibrated (phosphor- independent) colour
analyser (e.g. Minolta CA-210) in the centre of the screen.
Consequently, the measurement needs to be done in a
dark environment.
•Adjust the correct x,y coordinates (while holding one of the
White point registers R, G or B on “256”) by means of
decreasing the value of one or two other white points to the
correct x,y coordinates (see table “White D alignment
values”). Tolerance: dx: ± 0.004, dy: ± 0.004.
•Repeat this step for the other colour Temperatures that
need to be aligned.
•When finished return to the SAM root menu and press
STANDBY on the RC to store the aligned values to the
NVM.
Table 8-1 White D alignment values
Value Cool (11000 K) Normal (9000 K) Warm (6500 K)
x0.2780.2890.314
y0.2780.2910.319
If you do not have a colour analyser, you can use the default
values. This is the next best solution. The default values are
average values coming from production (statistics).
•Set the RED, GREEN and BLUE default values per
temperature according to the values in the “Tint settings”
table.
EN 70LC7.1E LA8.
Alignments
•When finished return to the SAM root menu and press
STANDBY on the RC to store the aligned values to the
NVM.
Table 8-2 Tint settings
Colour Temp.RGB
Cool249241246
Normal251238229
Warm246222199
Black Level Offset Alignment
•Activate SAM.
•Select “RGB Align.” -> “BlackL Offset” and choose a colour.
•Set all “BlackL Offset” values to “0”.
•When finished return to the SAM root menu and press
STANDBY on the RC to store the aligned values to the
NVM.
Note: For models with “Pixel Plus”, the “Black Offset” (black
level offset) should NOT be changed in SAM. These offset
values of RGB should be set to “0”, and should NOT be
adjusted. Any adjustment of these values will affect the low
light white balance.
ADC YPbPr Gray Scale Alignment
When the grey scale is not correct, use this alignment:
•Activate SAM.
•Select “NVM Editor”.
•Enter address “ 26(dec)” (ADR).
•Set value (VAL) to “197(dec) ± 25”.
•Store (STORE) the value.
8.4Option Settings
8.4.1Introduction
The microprocessor communicates with a large number of I
ICs in the set. To ensure good communication and to make
digital diagnosis possible, the microprocessor has to know
which ICs to address. The presence/absence of these specific
ICs (or functions) is made known by the option codes.
Notes:
•After changing the option(s), save them with the STORE
command.
•The new option setting becomes active after the TV is
switched "off" and "on" again with the mains switch (the
EAROM is then read again).
8.4.2How To Set Option Codes
When the NVM is replaced, all options will require resetting. To
be certain that the factory settings are reproduced exactly, you
must set all option numbers. You can find the correct option
numbers in table “Option Codes OP1...OP7“ below.
How to Change Options Codes
An option code (or “option byte”) represents eight different
options (bits). When you change these numbers directly, you
can set all options very quickly. All options are controlled via
seven option numbers (OP1... OP7).
Activate SAM and select “Options”. Now you can select the
option byte (OP1.. OP7) with the CURSOR UP/ DOWN keys,
and enter the new 3 digit (decimal) value. For the correct
factory default settings, see the table “Option codes
OP1...OP7“ below. For more detailed information, see the
second table “Option codes at bit level“. If an option is set
(value “1”), it represents a certain decimal value.
When all the correct options (bits) are set, the sum of the
decimal values of each Option Byte (OP) will give the option
code.
2
C
Sets 12NC Sets Type Panel Type
LC07_EU_ATV_LCD_Europe (/10)
LPL : LC260WX2-SLB2 045
867000025487 26PFL5322/10
867000025408
867000025489 37PFL5322/10
867000025492 42PFL5322/10
LC07_EU_ATV_LCD_Pan Europe (/12 )
867000025488 26PFL5322/12
867000025439 32PFL5322/12
867000025491 37PFL5322/12
867000025493 42PFL5322/12
LC07_EU_ATV_P DP_Europe (/10)
867000025494 42PFP5332/10
LC07_EU_ATV_PDP_Pan Europe
(/12)
867000025495 42PFP5332/12
32PFL5322/10
CMO : V260B1-L03 068
AUO : T260XW03 V1 067
LPL : LC320W01-SL06 046
AUO : T315XW02 VD 091
CMO : V315B1-L05 069
LPL : LC370WX1-SLB1 071
AUO : T370XW02 V5 072
LPL : LC420WX3-SLA1 073
AUO : T420XW01 V8 076
LPL : LC420WX5-SLD1
LPL : LC260WX2-SLB2 045
CMO : V260B1-L03 068
AUO : T260XW03 V1 067
LPL : LC320W01-SL06 046
AUO : T315XW02 VD 091
CMO : V315B1-L05 069
LPL : LC370WX1-SLB1 071
AUO : T370XW02 V5 072
LPL : LC420WX3-SLA1 073
AUO : T420XW01 V8 076
LPL : LC420WX5-SLD1
SDI : 42 HD W2 083
LG : 42 HD X4 084
SDI : 42 HD W2 083
LG : 42 HD X4 084
Panel
Code
(Dec)
1234567
003 023 010 223 009 000
107
003 023 010 223 009 000
107
003 007 011 223 009 000 003
003 007 011 223 009 000 003
Option Byte
Group 1 Group 2
000
001
002
000
001
002
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Figure 8-1 Option codes OP1...OP7 (for all LC7.1E models)
Alignments
EN 71LC7.1E LA8.
Option Bit Overview
Below find an overview of the Option Codes on bit level.
Table 8-3 Option codes at bit level (OP1-OP4)
Option Byte & BitDec. ValueOption NameDescription
Byte OP1
Bit 7 (MSB)128ReservedNot Used (Reserved)
Bit 664CHINAON = SW is for CHINA only OFF = SW is for Non-China AP cluster
Bit 532DTV_CHINAON = DTV_CHINA will be available (Reserved) OFF = DTV_CHINA will not be available
Bit 416DTV_EUON = DTV will be available OFF = DTV will not be available
Bit 38UK_PNPON = UK PNP is available OFF = UK PNP is not available
Bit 24VIRGIN_MODEON = Virgin Mode (PNP) is available OFF = Virgin Mode (PNP) is not available
Bit 12ACION = ACI is available OFF = ACI is not available
Bit 0 (LSB)1ATSON = ATS is available OFF = ATS is not available
Total DEC Value
Byte OP2
Bit 7 (MSB)1281080PON = 1080p is available OFF = 1080p is not available
Bit 664LIGHT_SENSORON = Light Sensor is available OFF = Light Sensor is not available
Bit 532AMBILIGHT ON = Ambilight Feature will be avai lable OFF = Ambilight Feature will not be available
Bit 416BACKLIGHT_DIMMINGON = Backlight Dimming is available OFF = Backlight Dimming is not available
Bit 38HUEON = Hue is available OFF = Hue is not available
Bit 242D3DCFON = 3D Comb Filter is available OFF = 2D Comb Filter is available
Bit 12WSSBON = WSS is available OFF = WSS is not available
Bit 0 (LSB)1WIDE_SCREENON = TV is 16x9 set OFF = TV is 4x3 set
Total DEC Value
Byte OP3
Bit 7 (MSB)128CVI2ON=CVI1 (YPbPr) (For ROW)
Bit 664ReservedNot Used (Reserved)
Bit 532ReservedNot Used (Reserved)
Bit 416VCHIPON = VChip is available OFF = VChip is not available
Bit 38VIDEO_TEXTON = Video-TXT is available OFF = Video-TXT is not available
Bit 24STEREO_DBXON = Stereo DBX detection is available (LATAM) OFF = Stereo DBX detection is not available
Bit 12STEREO_NICAM_2CSON = Stereo NICAM 2CS detection is available (EU/AP/China) OFF = Stereo NICAM 2CS
Bit 0 (LSB)1LIP_SYNCON = Lip Sync is available OFF = Lip Sync is n ot available
Total DEC Value
Byte OP4
Bit 7 (MSB)128HDMI2 ON = HDMI2 is available OFF = HDMI2 is not available
Bit 664HDMI1 ON = HDMI1 is available OFF = HDMI1 is not available
Bit 532VGA ON = VGA is available OFF = VGA is not available
Bit 416SVHS3ON = SVHS3 is available OFF = SVHS3 is not available
Bit 38AV3ON = AV3 is available OFF = AV3 is not available
Bit 24CVION = CVI is available OFF = CVI is not available
Bit 12SVHS2ON = SVHS2 is available OFF = SVHS2 is not available
Bit 0 (LSB)1AV2ON = AV2 is available OFF = AV2 is not available
Total DEC Value
detection is not available
EN 72LC7.1E LA8.
Alignments
Table 8-4 Option codes at bit level (OP5-OP7)
Option Byte & BitDec. ValueOption NameDescription
Byte OP5
Bit 7 (MSB)128NVM_CHECKON = NVM (range) checking is available OFF = NVM (range) checking is not available
Bit 664ReservedNot Used (Reserved)
Bit 532ReservedNot Used (Reserved)
Bit 416MP_ALIGNON = Using multi-point alignment for Gamma & White Point OFF = Using old way for Gamma (pre-
Bit 38SYS_RECVRYON = System Recovery is available OFF = System Recovery is not available
Bit 24SL_WIREDON = BDS Smart Loader Wired is available OFF = BDS Smart Loader Wired is not available
Bit 12HOTELON = Hotel/BDS is available OFF = Hotel/BDS is not available
Bit 0 (LSB)1SS_DEMOON = Split Screen Demo is available OFF = Split Screen is not available
Total DEC Value
Byte OP6
Bit 7 (MSB)128ReservedNot Used (Reserved)
Bit 664ReservedNot Used (Reserved)
Bit 532ReservedNot Used (Reserved)
Bit 416ReservedNot Used (Reserved)
Bit 38TUNER PROFILE0 = ATV_EU_PHILIPS UV1318S/AIH-3 1 = ATV_EU_Panasonic EN57K28 G3F2 =
Bit 24
Bit 12
Bit 0 (LSB)1
Total DEC Value
Byte OP7
Bit 7 (MSB)128ReservedNot Used (Reserved)
Bit 664ReservedNot Used (Reserved)
Bit 532ReservedNot Used (Reserved)
Bit 416CABINET PROFILE0 = Cabinet_Profile_26_LCD_ME7 1 = Cabinet_Profile_32_LCD_ME7 2 =
Bit 38
Bit 24
Bit 12
Bit 0 (LSB)1
Total DEC Value
defined) & WP alignment
DTV_EU_PHILIPS TD1316AF/IHP-24 = ATV_AP_PHILIPS UV1316E/AIH-45 = ATV_ AP_Tuner2
(Reserved)6 = ATV_CHINA_ALPS TEDE9-286B7 = ATV_CHINA_Tuner2 (Reserved)8 =
ATV_LATAM_PHILIPS UV1338/AIH-4 9 = ATV_LATAM_Tuner2 (Reserved)10 =
DTV_CHINA_Tuner1 (Reserved)11 = DTV_CHINA_Tuner2 (Reserved)12 = Not Used
(Reserved)13 = Not Used (Reserved)14 = Not Used (Reserved)15 = Not Used (Reserved)
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.Circuit Descriptions, Abbreviation List, and IC Data Sheets
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 Memory addressing
9.7 Audio Processing
9.8 HDMI
9.9 Abbreviation List
9.10 IC Data Sheets
Notes:
•Only new circuits (circuits that are not published recently)
are described.
•Figures can deviate slightly from the actual situation, due
to different set executions.
•For a good understanding of the following circuit
descriptions, please use the Wiring, Block (chapter 6) and
Circuit Diagrams (chapter 7). Where necessary, you will
find a separate drawing for clarification.
9.1Introduction
EN 73LC7.1E LA9.
The LC7.x (development name “LC07”) is a new global chassis
for the year 2007 (LC7.1 is the analogue range, LC7.2 is the
digital range). It covers a screen size of 26 to 47 inch for LCD
and 42 to 50 inch for Plasma sets with a new styling called
“ME7”. Some key components are:
•Audio: Sound processing is performed by a multi-standard
sound processor MSP4450 (item 7411)
•Video: Video processing is performed by the Trident video
processor SVP CV32-LF (item 7202).
For analogue reception, a standard IF demodulator is used,
whereas digital input signals (DVB-T) are processed through a
COFDM channel decoder together with an MPEG decoder. A
so-called “Reneas” microprocessor performs the control
functionality.
Important features of this chassis are:
•AmbiLight: LED AmbiLight (where applicable) is
introduced as the successor of glass-tube AmbiLight
•1080p Full HD (where applicable).
EN 74LC7.1E LA9.
9.1.1SSB Cell Layout
Circuit Descriptions, Abbreviation List, and IC Data Shee ts
DC-DC CONVERSION
ANALOG TUNER
IF DEM
VIF SAW
SIF SAW
RENEAS
uP
TRIDENT
VIDEO
PROC.
HDMI
AUDIO CLASS D
H_16940_010.eps
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AUDIO CLASS D
MEM
FLASH
MICRONAS
AUDIO PROC.
Figure 9-1 SSB top view
SDRAM
DC-DC CONVERSION
SDRAM
Figure 9-2 SSB bottom view
H_16940_011.eps
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Circuit Descriptions, Abbreviation List, and IC Data Sheets
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 sent for repair, unless
the main fuse of the unit is broken. Always replace the fuse with
one with the correct specifications! This part is available in the
regular market.
Three different PSU can be used in this chassis:
•26 and 32 inch sets use a “Delta” PSU
•37 and 42 inch sets use a “PPS” (Philips Power Solutions)
PSU
•47 inch sets use a “Delta” PSU.
Figure “Overview of PSU connectivity” shows the connectivity
of the Power Supply Unit with the other panels in the set.
Figure 9-4 DC-DC converter block diagram
9.4Front-End
EN 75LC7.1E LA9.
G_16860_063.eps
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Figure 9-3 Overview of PSU connectivity
All Power Supply Units deliver the following voltages to the
chassis:
•+24 V to the inverters
•+12 V to SSB
•+12 V and -12 V to Audio Supply
•12 V to Bolt-on Supply (where applicable)
•+5.2 V Standby voltage.
9.3DC/DC converters
A switch generates the +5.2 V (+5V_SW) from the +5.2 V
(+5V_STANDBY) supply voltage. For LCD sets, this switch is
mounted on-board the SSB. For PDP sets, this switch is
mounted on the Power Supply Panel. This results in the
+5V_STANDBY (and +5V_SW for PDP sets) voltage(s),
coming from the Power Supply Unit, is (are) used as input for
the on-board DC/DC converters.
They deliver the following voltages to the board:
•+3.3 V (+3V3_STBY)
•+5.2 V (+5V_SW) (only for LCD sets)
•+1.8 V (+1V8S_SW)
•+34 V (+VTUN)
•+3.3 V (+3V3_SW)
•+3.3 V (+3V3_MOJO)
•+1.2 V (+1V2_MOJO)
An overview can be found in figure “DC-DC converter block
diagram”.
G_16860_051.eps
310107
This chassis uses different tuners depending on the region and
execution. An overview of the different executions can be found
in table “Tuner diversity”.
For a general outline of tuner applications in this chassis see
figure “Tuner IF diagram”.
4MHz
Tuner
Supply
+5V/+33V
IF AGC
Digital IF
36.16MHz
Video
SAW filter
Audio
SAW filter
RFAGC
I2C
IF Demodulator
RF AGC_analogue
Switch IC
CVBS
2ndSIF
RF AGC_digital
I2C_analogue
I2C_digital
G_16860_054.eps
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Figure 9-5 Tuner IF diagram
In the LC7.1x chassis (analogue sets), the signal coming from
the tuner is fed to the IF demodulator (through the SAW filters)
and then passed to the Trident Video Processor.
In the LC7.2x chassis (digital sets), the TD1316AF hybrid tuner
is used which is capable of receiving both analogue and digital
(DVB-T) signals. While receiving analogue signals, the signal
coming from the tuner is fed to the IF demodulator (through the
SAW filters) and then passed to the Trident Video Processor.
While receiving digital signals, the signal coming from the tuner
is first fed to the channel decoder, then to the MPEG decoder
and then to the Trident Video Processor.
EN 76LC7.1E LA9.
Circuit Descriptions, Abbreviation List, and IC Data Shee ts
9.4.1Video IF Amplifier
The IF-filter is integrated in a SAW (Surface Acoustic Wave)
filter. One for filtering IF-video (item 1102) and one for IF-audio
(item 1103). The type of these filters depends on the
standard(s) received (region-dependency). Some filters can be
switched to another standard, what makes them suitable for
applications in multi-standard platforms. An overview of the
SAW filter diversity can be found in table “SAW filter diversity”.
Switching is done by the microcontroller via SAW_SW. In table
“SAW filter switching” is explained how to address the different
system standards.
Table 9-3 SAW filter switching
RegionSAW_SWSystem
Europe1L’
0other systems
AP1B/G, D/K, I
0M/N
China1B/G, D/K, I
0M/N
LATAMn.a.M/N
The hybrid tuner TDA1316AF, used in Europe sets, needs to
be switched between digital and analogue mode. This is done
by the microcontroller via DVB_SW. Refer to table “Hybrid
tuner digital/analogue switching” for details.
Pin
number DescriptionDC voltage (V)
10n.c.
11TV IF output
The pin assignment of the hybrid tuner can be found in table
“Pin assignment hybrid tuner”.
Table 9-6 Pin assignment hybrid tuner
Pin
number DescriptionDC voltage (V)
1n.c.
2RF AGC voltage3.3 - 4.5 (weak or no
2
3I
4SCL0 to 3.3
5SDA0 to 3.3
64 MHz reference
7supply voltage5 ±0.25
8broadband IF output
9IF AGC voltage0 to 3
10narrowband IF output
11narrowband IF output
9.4.2Automatic Gain Control
In the LC7.2x chassis (digital sets), the automatic gain control
depends on if the set is receiving a digital or an analogue
signal. During analogue reception, the hybrid tuner receives an
external AGC voltage, coming from the demodulator, to
perform automatic gain control. During digital reception, no
external AGC voltage is used but the tuners internal AGC loop
is used.
In the LC7.1x chassis (analogue sets), the tuner receives an
external AGC voltage, coming from the demodulator, to
perform automatic gain control.
C-bus address select 0
output
signal) < 3.3 (strong signal)
9.5Video Processing
Table 9-4 Hybrid tuner digital/analogue switching
RegionDVB_SWMode
Europe1analogue reception
0Digital reception
The pin assignment of all analogue tuners is equal and can be
found in table “Pin assignment analogue tuners”.
Table 9-5 Pin assignment analogue tuners
Pin
number DescriptionDC voltage (V)
1RF AGC voltage3.3 - 4.5 (weak or no
signal) < 3.3 (strong signal)
2n.c.
3I
4SCL0 to 3.3
5SDA0 to 3.3
6n.c.
7supply voltage5 ±0.25
8n.c.
9tuning supply voltage 33
2
C-bus address select 0
The video processing is completely handled by the Trident SVP
CX32 video processor which features:
•CVBS-input for analogue signals
•RGB-input for digital (DVB-T) signals
•Motion and “edge-adaptive” deinterlacing
•Integrated ADC
•Built-in 8-bit LVDS transmitter
•Colour stretch
•Skin colour enhancement
•3D Digital Comb Video Decoder
•Interlaced and Progressive Scan refresh
•Teletext decoding
•OSD and VBI/Closed Caption.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.5.1Region-dependent applications
EN 77LC7.1E LA9.
SIDE AV
On board EXT3
SCART1
SCART2
EXT4
HDMI2
HDMI1
Analogue
Front End
FRONT_Y_C VBS_IN_T
FRONT_C _IN_T
CVBS_RF
SC1_R_IN
SC1_G_IN
SC1_B_IN
SC1_CVBS_IN
SC1_FB L_IN
SC2_Y_CVBS_IN
SC2_C_IN
CVBS1
PR_R2
Y_G2
PB_B2
PB_B3
FB1
PR_R3
FS2
Y_G3
C
CVBS_OUT1
Trident
Video Processor
SVP CX32
Digital Front End
( D V B-T
demodulator
and decoder)
HDMI
Decoder
HD_Y_IN
HD_PB_IN
HD_PR_IN
IBO _ R_ IN
IBO _ G _ IN
IBO _ B _ I N
IBO _ CV B S _IN
HDMI_Y(0:7)
HDM I_Cb(0:7)
HDM I_Cr(0:7)
Y_G1
PB_B1
PR_R1
PC_R
PC_G
PC_B
FS1
CVBS_OUT2
G_16860_060.eps
Figure 9-6 Block diagram video processing - EU version
CVBS
CVBS
SCART1 Monitor out
SCART2 Monitor out
310107
“Block diagram video processing - EU version” shows the input
and output signals to and from the Trident Video Processor in
EU applications.
During analogue reception, a CVBS signal coming from the
analogue front-end is fed to the video processor via pin
CVBS1. During digital reception, the video signal coming from
the MPEG decoder (MOJO) is fed to the video processor via
pins FS1, PC_B, PC_G and PC_R.
SIDE AV
DMM I connector
AV1
CVI1
CVI2
PC VGA
HDMI2
HDMI1
Analogue
Front End
DMMI YPbPr IN
CVI YPbPr
Decoder
FRONT_Y_CVBS_IN_T
MUX
HDMI
CVBS_RF
SC2_Y_CVBS_IN
SC2_C_IN
FRONT_C_IN_T
CVI_DTV_SEL
IBO _ R _IN
IBO _ G _ IN
IBO_B_IN
IBO _ C V B S _IN
HD_Y_IN
HD_PB_IN
HD_PR_IN
SC1_R_IN
SC1_G_IN
SC1_B_IN
PC_VGA_H
PC_VGA_V
HDMI_Y(0:7)
HDMI_Cb(0:7)
HDMI_Cr(0:7)
CVBS1
PR_R3
FS2
Y_G3
C
PC_R
PC_G
PC_B
FS1
Y_G1
PB_B1
PR_R1
PR_R2
Y_G2
PB_B2
AIN_HS
AIN_VS
Trident
Video Processor
SVP CX32
The video processor also interfaces the SCART1 & 2 input,
side AV, EXT4 (HD where applicable) and HDMI1 & 2 input.
Through the SCART1 & 2 connectors, a monitor output is
foreseen.
CVBS_OUT2
CVBS
G_16860_061.eps
CINCH Monitor out
310107
Figure 9-7 Block diagram video processing - AP version
EN 78LC7.1E LA9.
Circuit Descriptions, Abbreviation List, and IC Data Shee ts
“Block diagram video processing - AP version” shows the input
and output signals to and from the Trident Video Processor in
AP applications.
During analogue reception, a CVBS signal coming from the
analogue front-end is fed to the video processor via pin
CVBS1. No digital reception (DVB-T) reception is foreseen in
AP region. However, an internal DMMI connector is
implemented for future digital reception applications in
combination with IBO. CVI_DTV_SEL is a control signal from
the microprocessor. When this signal is LOW, then the MUX
passes the CVI1 YPbPr input signal to the Trident Video
Processor. When this signal is HIGH, then the YPbPr input
signal coming from the DMMI connector is passed to the video
processor. Currently, this signal is always LOW since no IBO is
used.
The video processor also interfaces the AV1 and Side AV
input, CVI2 (HD), VGA(PC), HDMI1 & 2. A cinch output
connector for Monitor output is foreseen.
9.6Memory addressing
Figure “Memory block diagram” shows the interconnection
between the microprocessor, the FLASH memory, the Trident
Video Processor and the SDRAM.
7311
Reneas
micro-
processor
7202
Trident CX
CS/WR/RD
CPU_RST/WR/RD/CE
A[0:19]
D[0:7]
A[0:7]
D[0:7]
CLKE/CS0/RAS/CAS/WE
CLKE/CS0/RAS/CAS/WE
CX_BA0/BA1/MCLK/
CX_MA[0:11]
DQ[0:15]
CX_BA0/BA1/MCLK/
CX_MA[0:11]
DQ[16:31]
7310
1MB
Flash Memory
7204
8MB
SDRAM
7205
8MB
SDRAM
G_16860_062
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internal 40 ms (stereo) audio delay line (LIP SYNC) is foreseen
and therefore no external delay line is necessary.
All internal clock signals are derived from an external
18.432 MHz oscillator, which, in NICAM or I
2
S-mode, on its
turn is locked to the corresponding source.
The following functionality is included:
•Automatic Standard Detection (ASD) automatically detects
the actual broadcasted TV standard
•Automatic Sound Select (ASS) automatically switches
(without any I
2
C-bus action) between mono/stereo/
bilingual mode when the broadcast mode changes.
9.7.1Region-dependent applications
DAC
MSP 4450P
ANA_IN1+
I2S_DA_IN1
I2
S_WS
I2S_CL
SC1-IN
SC2-IN
SC3-IN
SC4-IN
SC5-IN
DACM
DACA
SC1-OUT
SC2-OUT
CLASS D
AMPLIFIER
HP AMPLIFIER
LOUDSPEAKER
SCART 1 OUT
SCART 2 OUT
G_16860_055.eps
ANALOGUE
FRONT END
DVB / MOJO
(if present)
SCART 1 IN
SCART 2 IN
COMP IN
SIDE IN
HDMI IN
HDMI
2nd SIF
I2S1
AUDIO
IC
Figure 9-9 Block diagram audio processing - EU application
In EU applications, the MSP features:
•Sound IF input for signals coming from the analogue frontend
2
•Three I
S-inputs for signals (“DATA”, “CLK” and “WS”)
coming from the MOJO in case of digital reception
•Five analogue inputs: for EXT1 to EXT4 and HDMI
•Loudspeaker output path
•Headphone output path
•SCART-1 output path (RF)
•SCART-2 output path (WYSIWYG = monitor).
Digital audio signals coming from HDMI sources are fed to a
digital-to-analogue converter and then fed to the MSP.
In case of reception of digital TV signals, digital audio signals
coming from the MOJO are directly fed to the MSP via the
I2S_DA_IN1, I2S_WS1 and I2S_CL1 lines. This ensures a
“true digital path”.
090307
Figure 9-8 Memory block diagram
Control signals CPU_RST, WR, RD and CE, address lines
A[0:19] and data lines D[0:7] are used for transferring data
between the microprocessor (item 7311) and the flash memory
(item 7310). Control signals CS, WR and RD, address lines
A[0:7] and data lines D[0:7] are used for transferring data
between the Trident Video Processor (item 7202) and the
microprocessor (item 7311). Control signals CX_BA0,
CX_BA1, CX_MCLK, CX_CLKE, CX_CS0, CX_RAS, CX_CAS
and CX_WE, address lines CX_MA[0:11] and data lines
DQ[0:15] are used for transferring data between the Trident
Video Processor and the SDRAM ICs (items 7204 and 7205).
9.7Audio Processing
The audio decoding is done entirely via the Multistandard
Sound Processor (MSP) 4450P (item 7411).
This processor covers the processing of both analogue and
(NICAM) digital input signals by processing the (analogue) IF
signal-in to processed (analogue) AF-out (baseband audio). An
MSP 4450P
ANALOGUE
FRONT END
HDMI AUDIO
PC AUDIO IN
AV 2 IN
CVI 1 IN
AV 1 IN
CHINA DTV IN
CVI2 IN
** FOR AP ANALOGUE &
LATAM SET
2nd SIF
I2S3
AUDIO
MUX
ANA_IN1+
I2S_DA_IN3
I2S_WS3
I2S_CL3
SC1-IN
SC2-IN
SC3-IN
SC4-IN
SC5-IN
DACM
DACA
SC1-OUT
SC2-OUT
CLASS D
AMPLIFIER
HP AMPLIFIER
LOUDSPEAKER
HEADPHONE
MONITOR OUT
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090307
Figure 9-10 Block diagram audio processing - AP application
In AP applications, the MSP features:
•Sound IF input for signals coming from the analogue frontend
Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 79LC7.1E LA9.
•Three I2S-inputs for signals (“DATA”, “CLK” and “WS”)
coming from the HDMI interface
•Five analogue inputs: for CVI1, CVI2, AV1, AV2, DTV
(China) and PC audio
•Loudspeaker output path
•Headphone output path
•Monitor output path (WYSIWYG).
Digital audio signals coming from HDMI sources are directly
fed to the MSP via the I2S_DA_IN3, I2S_WS3 and I2S_CL3
lines. This ensures a “true digital path”.
In case of reception of digital TV signals, a multiplexer is used
to switch between China DTV or DVI2 audio. In China sets, the
audio signal coming from the DTV module is in analogue
format. The output from the multiplexer is fed to the MSP via
the SC5-input.
In both applications, the microprocessor (item 7311) controls
the audio part with the following control lines:
•MUTEn: used to mute the Class D amplifiers
•ANTI_PLOP: used to detect any DC failure in the Class D
amplifiers
•DC_PROT: used to detect any DC failure in the Class D
amplifiers.
9.7.2Audio Amplifier
The audio amplifier is an integrated class-D amplifier
(TDA8932T, item 7A01). It combines a good performance with
a high efficiency, resulting in a big reduction in heat generation.
Principle
+V
DC-protection
A DC-detection circuit is foreseen to protect the speakers. It is
built around three transistors (items 7A05 to 7A07) and
generates a protection signal (DC_PROT) to the
microprocessor in case of a DC failure in the Class D
amplifiers.
9.8HDMI
9.8.1Introduction
Note: Text below is an excerpt from the ”HDMI Specification”
that is issued by the HDMI founders (see http://www.hdmi.org).
The High-Definition Multimedia Interface is developed for
transmitting digital signals from DVD players, set-top boxes
and other audiovisual sources to television sets, projectors and
other video displays.
HDMI can carry high quality multi-channel audio data and can
carry all standard and high-definition consumer electronics
video formats. Content protection technology is available.
HDMI can also carry control and status information in both
directions.
HDMI is backward compatible with DVI (1.0). Compared with
DVI, HDMI offers extra:
•YUV 4:4:4 (3 x 8-bit) or 4:2:2 (up to 2 x 12-bit), where DVI
offers only RGB 4:4:4 (3 x 8 bit).
•Digital audio in CD quality (16-bit, 32/44.1/48 kHz), higher
quality available (8 channels, 192 kHz).
•Remote control via CEC bus (Consumer Electronics
Control): allows user to control all HDMI devices with the
TV's remote control and menus.
•Smaller connector (SCART successor).
•Less cables: e.g. from 10 audio/9 video cables to 3 HDMI
cables.
-V
G_16860_080.eps
020207
Figure 9-11 Principle Class-D Amplifier
The Class D amplifier works by varying the duty cycle of a
Pulse Width Modulated (PWM) signal.
By comparing the input voltage to a triangle wave, the amplifier
increases duty cycle to increase output voltage, and decreases
duty cycle to decrease output voltage.
The output transistors of a Class D amplifier switch from 'full off'
to 'full on' (saturated) and then back again, spending very little
time in the linear region in between. Therefore, very little power
is lost to heat. If the transistors have a low 'on' resistance
(RDS(ON)), little voltage is dropped across them, further
reducing losses.
A Low Pass Filter at the output passes only the average of the
output wave, which is an amplified version of the input signal.
In order to keep the distortion low, negative feedback is
applied.
The advantage of Class D is increased efficiency (= less heat
dissipation). Class D amplifiers can drive the same output
power as a Class AB amplifier using less supply current.
The disadvantage is the large output filter. The main reason
for this filter is that the switching waveform results in maximum
current flow. This causes more loss in the load, which causes
lower efficiency. An LC filter with a cut-off frequency less than
the Class D switching frequency, allows the switching current
to flow through the filter instead of the load, thus reducing the
overall loss and increasing the efficiency.
9.8.2Implementation
The IC used is the Sil 9025 (Silicon Image) third generation
HDMI receiver, item 7817 on the SSB.
It has the following features:
•Dual HDMI input connector
•Two EEPROMS to support EDID
•HDMI audio
2
S output to low-cost DACs which operate at a frequency
•I
of 32 to 192 kHz
•Integrated HDCP decryption engine
•Built-in pre-programmed HDCP keys for highest level of
copy-protection security
•Colour space conversion RGB to YCbCr
•“Hot Plug Reset” signal.
Figure “HDMI implementation” shows the HDMI configuration
in this chassis.
EN 80LC7.1E LA9.
HDMI 1
HDMI 2
COMP_AUDIO LR
for DVI audio input
only
EDID
EDID
DDC Reset
(Port 1)
HDMI
Receiver
Sil9025
(Port 2)
Hot plug
Reset
HDMI_HOTPLUG_RESET
DDC_RESET
RST
Data Enable
HDMI CLK
24 bits YCbCr 4:4:4
H and V Sync
I2S
I2S DAC
Circuit Descriptions, Abbreviation List, and IC Data Shee ts
I2C
Trident
CX32
HDMI_Audio LR
Audio Processor
Micronas MSP4450P
Figure 9-12 HDMI implementation
HDMI connectors 1 and 2 are connected to resp. ports 1 and 2
of the HDMI receiver. The ports cannot be activated at the
same moment. Switching is controlled by software.
“Hot Plug Reset” and “DDC Reset” are controlled by the
microprocessor.
The HDMI receiver will convert all RGB or YCbCr 4:2:2 signals
to 24-bit YCbCr 4:4:4. When it receives a YCbCr 4:4:4 signal it
will just pass the signal directly to the Trident Video Processor.
algorithm that adapts aspect ratio to
remove horizontal black bars; keeping
up the original aspect ratio
ACIAutomatic Channel Installation:
algorithm that installs TV channels
directly from a cable network by
means of a predefined TXT page
ADCanalogue to Digital Converter
AFCAutomatic Frequency Control: control
signal used to tune to the correct
frequency
AGCAutomatic Gain Control: algorithm that
controls the video input of the feature
box
AMAmplitude Modulation
AUOAcer Unipack Optronics
APAsia Pacific
ARAspect Ratio: 4 by 3 or 16 by 9
ASDAutomatic Standard Detection
AVAudio Video
B/GMonochrome TV system. Sound
carrier distance is 5.5 MHz
BTSCBroadcast Television System
for a CAM in a set top box
CLConstant Level: audio output to
connect with an external amplifier
CLUTColour Look Up Table
ComPairComputer aided rePair
COFDMCoded Orthogonal Frequency Division
Multiplexing; A multiplexing technique
that distributes the data to be
transmitted over many carriers
CSMCustomer Service Mode
CVBSComposite Video Blanking and
Synchronisation
CVBS-MONCVBS monitor signal
CVBS-TER-OUTCVBS terrestrial out
CVIComponent Video Input
DACDigital to analogue Converter
DBEDynamic Bass Enhancement: extra
low frequency amplification
DDCDisplay Data Channel; is a part of the
"Plug and Play" feature
DFUDirections For Use: owner's manual
DNRDynamic Noise Reduction
DRAMDynamic RAM
DSPDigital Signal Processing
DSTDealer Service Tool: special
(European) remote control designed
for service technicians
DTSDigital Theatre Sound
DVB(T)Digital Video Broadcast; An MPEG2
I, L is all bands except for Band I
LPLLG Philips LCD
LSLoud Speaker
LVDSLow Voltage Differential Signalling,
data transmission system for high
speed and low EMI communication.
M/NMonochrome TV system. Sound
carrier distance is 4.5 MHz
MOSFETMetal Oxide Semiconductor Field
Effect Transistor
MPEGMotion Pictures Experts Group
MSPMulti-standard Sound Processor: ITT
sound decoder
MUTEMUTE Line
NAFTANorth American Free Trade
Association: Trade agreement
between Canada, USA and Mexico
NCNot Connected
NICAMNear Instantaneous Compounded
Audio Multiplexing. This is a digital
NTSCNational Television Standard
NVMNon Volatile Memory: IC containing
O/COpen Circuit
ON/OFF LEDOn/Off control signal for the LED
OADOver the Air Download
OSDOn Screen Display
PALPhase Alternating Line. Colour system
PCPersonal Computer
PCBPrinted Circuit Board (or PWB)
PDPPlasma Display Panel
PIGPicture In Graphic
PIPPicture In Picture
PLLPhase Locked Loop. Used, for
PSUPower Supply Unit
PWBPrinted Wiring Board (or PCB)
RAMRandom Access Memory
RCRemote Control transmitter
RC5 (6)Remote Control system 5 (6), the
RFRadio Frequency
RGBRed, Green, and Blue. The primary
RGBHVRed, Green, Blue, Horizontal sync,
ROMRead Only Memory
SAMService Alignment Mode
SCSandCastle: two-level pulse derived
SC1-OUTSCART output of the MSP audio IC
SC2-OUTSCART output of the MSP audio IC
S/CShort Circuit
SCLClock signal on I2C bus
SD
SDAData signal on I2C bus
SDISamsung Display Industry
SDMService Default Mode
SDRAMSynchronous DRAM
SECAMSEequence Couleur Avec Memoire.
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
THDTotal Harmonic Distortion
TXTTeleteXT
uPMicroprocessor
sound system, used mainly in Europe.
Committee. Colour system used
mainly in North America and Japan.
Colour carrier NTSC M/N = 3.579545
MHz, NTSC 4.43 = 4.433619 MHz
(this is a VCR norm, it is not
transmitted off-air)
TV related data (for example, options)
used mainly in Western Europe
(colour carrier = 4.433619 MHz) and
South America (colour carrier PAL M =
3.575612 MHz and PAL N = 3.582056
MHz)
example, in FST tuning systems. The
customer can directly provide the
desired frequency
signal from the remote control receiver
colour signals for TV. By mixing levels
of R, G, and B, all colours (Y/C) are
reproduced.
and Vertical sync
from sync signals
Standard Definition: 480i, 576i
Colour system used mainly in France
and Eastern Europe. Colour carriers =
4.406250 MHz and 4.250000 MHz
EN 82LC7.1E LA9.
VLVariable Level out: processed audio
output toward external amplifier
VCRVideo Cassette Recorder
VGAVideo Graphics Array
WDWatch Dog
WYSIWYRWhat You See Is What You Record:
record selection that follows main
picture and sound
XTALQuartz crystal
YPbPrComponent video (Y= Luminance, Pb/
Pr= Colour difference signals B-Y and
R-Y, other amplitudes w.r.t. to YUV)
Y/CVideo related signals: Y consists of
luminance signal, blanking level and
sync; C consists of colour signal.
Y-OUTLuminance-signal
YUVBaseband component video (Y=
Luminance, U/V= Colour difference
signals)
Circuit Descriptions, Abbreviation List, and IC Data Shee ts
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.10 IC Data Sheets
This section shows the internal block diagrams and pin layouts
of ICs that are drawn as "black boxes" in the electrical diagrams
(with the exception of "memory" and "logic" ICs).
9.10.1 Diagram B06C, Type SIL9025CTU(IC7817) (HDMI)
Block Diagram
EN 83LC7.1E LA9.
Pin Configuration
G_16860_073.eps
300107
Figure 9-13 Internal block diagram and pin configuration
EN 84LC7.1E LA9.
Circuit Descriptions, Abbreviation List, and IC Data Shee ts
9.10.2 Diagram B06C, Type UDA1334ATS (IC7810) (audio DAC)
Block Diagram
V
DDD
V
SSD
PLL0
1
BCK
2
WS
DATAI
3
UDA1334ATS
SYSCLK/PLL1
MUTE
DEEM/CLKOUT
VOUTL
6
8
9
14
Pin Configuration
4
DIGITAL INTERFACEPLL
DE-EMPHASIS
INTERPOLATION FILTER
NOISE SHAPER
DAC
1312
V
DDA
V
15
SSA
5
DAC
10
V
ref(DAC)
7
SFOR1
11
SFOR0
16
VOUTR
BCK
WS
DATAI
V
DDD
V
SSD
1
2
3
4
UDA1334ATS
5
6
7
8
16
15
14
13
12
11
10
9
VOUTR
V
SSA
VOUTL
V
DDA
V
ref(DAC)
SFOR0SYSCLK/PLL1
PLL0SFOR1
DEEM/CLKOUTMUTE
Figure 9-14 Internal block diagram and pin configuration
G_16860_081.eps
220207
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.10.3 Diagram B07, Type TDA8932T (IC7A01) (audio amplifier)
EN 85LC7.1E LA9.
Block Diagram
2
IN1P
3
IN1N
IN2P
IN2N
DIAG
12
15
14
4
7
6
5
INREF
CGND
POWERUP
ENGAGE
OSCILLATOR
V
SSD
PROTECTIONS:
OVP, OCP, OTP,
UVP, TF, WP
MODE
PWM
MODULATOR
PWM
MODULATOR
MANAGER
VOICSOFERCSO
DDA
CTRL
CTRL
81301
DRIVER
HIGH
DRIVER
LOW
DRIVER
HIGH
DRIVER
LOW
STABILIZER 11 V
STABILIZER 11 V
REGULATOR 5 V
V
DDA
28
BOOT1
29
V
DDP1
27
OUT1
26
V
SSP1
21
BOOT2
20
V
DDP2
22
OUT2
23
V
SSP2
V
DDA
V
SSP1
V
DDA
V
SSP2
V
SSD
25
STAB1
24
STAB2
18
DREF
11
HVPREF
13
TEST
Pin Configuration
30
HVP1
V
TDA8932
9
V
SSA
V
V
SSD(HW)
V
V
OSCREF
V
SSD(HW)
1, 16, 17, 32
SSD(HW)
DDA
SSA
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
G_16860_045.eps
300107
Figure 9-15 Internal block diagram and pin configuration
EN 86LC7.1E LA9.
Circuit Descriptions, Abbreviation List, and IC Data Shee ts
9.10.4 Diagram B04B, Type SVP CX32 (IC7202) (Trident video processor)