In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LC32D44E/S/RU-BK/GY (1st Eddition)
LC32D44E-BK
SAFETY PRECAUTION
Service Manual
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:
WARNING
1. For continued safety, no modification of any circuit should be
attempted.
2. Disconnect AC power before servicing.
CAUTION: F O R C O N TI NU E D PROTECTION
AGAINST A RISK OF FIRE REPLACE ONLY WITH
SAME TYPE FUSE.
F7101, F7103 (250V 3.15A)
• Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across the resistor.
• Connect the resistor connection to all exposed metal parts having a
return to the chassis (antenna, metal cabinet, screw heads, knobs
and control shafts, escutcheon, etc.) and measure the AC voltage
drop across the resistor.
All checks must be repeated with the AC cord plug connection
reversed. (If necessary, a nonpolarized adaptor plug must be used
only for the purpose of completing these checks.)
Any reading of 1.05 V peak (this corresponds to 0.7 mA peak AC.)
or more is excessive and indicates a potential shock hazard which
must be corrected before returning the monitor to the owner.
F7102 (250V 1A)
DVM
AC SCALE
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform the following
safety checks:
3. Inspect all lead dress to make certain that leads are not pinched,
and check that hardware is not lodged between the chassis and
other metal parts in the receiver.
4. Inspect all protective devices such as non-metallic control knobs,
insulation materials, cabinet backs, adjustment and compartment
covers or shields, isolation resistor-capacitor networks, mechanical
insulators, etc.
5. To be sure that no shock hazard exists, check for leakage current in
the following manner.
• Plug the AC cord directly into a 220~240 volt AC outlet.
• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as electrical conduit or electrical ground connected to an earth ground.
Many electrical and mechanical parts in LCD color television have
special safety-related characteristics.
These characteristics are often not evident from visual inspection, nor
can protection afforded by them be necessarily increased by using
replacement components rated for higher voltage, wattage, etc.
Replacement parts which have these special safety characteristics are
identified in this manual; electrical components having such features
are identified by “” and shaded areas in the Replacement Parts
List and Schematic Diagrams.
For continued protection, replacement parts must be identical to those
used in the original circuit.
The use of a substitute replacement parts which do not have the same
safety characteristics as the factory recommended replacement parts
shown in this service manual, may create shock, fire or other hazards.
i
LC32D44E/S/RU-BK/GY (1st Eddition)
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux
conseils suivants.
•
AVERTISSEMENT
1.
N'entreprendre aucune modification de tout circuit. C'est dangereux.
2.
Débrancher le récepteur avant toute réparation.
PRECAUTION: POUR LA PROTECTION CONTINUE CONTRE LES RISQUES D'INCENDIE,
REMPLACER LE FUSIBLE
F7101, F7103 (250V 3.15A)
F7102 (250V 1A)
VERIFICATIONS CONTRE L'INCEN-DIE ET LE
CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur, effectuer les vérifications suivantes.
Inspecter tous les faisceaux de câbles pour s'assurer que les fils
3.
ne soient pas pincés ou qu'un outil ne soit pas placé entre le châssis et les autres pièces métalliques du récepteur.
4.
Inspecter tous les dispositifs de protection comme les boutons de
commande non-métalliques, les isolants, le dos du coffret, les couvercles ou blindages de réglage et de compartiment, les réseaux
de résistancecapacité, les isolateurs mécaniques, etc.
5.
S'assurer qu'il n'y ait pas de danger d'électrocution en vérifiant la
fuite de courant, de la facon suivante:
•
Brancher le cordon d'alimentation directem-ent à une prise de courant de 120V. (Ne pas utiliser de transformateur d'isolation pour
cet essai).
A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ
10 watts en parallèle avec un condensateur de 0.15µF en série
avec toutes les pièces métalliques exposées du coffret et une terre
connue comme une conduite électrique ou une prise de terre
branchée à la terre.
•
Utiliser un voltmètre CA d'une sensibilité d'au moins 5000Ω/V pour
mesurer la chute de tension en travers de la résistance.
•
Toucher avec la sonde d'essai les pièces métalliques exposées qui
présentent une voie de retour au châssis (antenne, coffret métallique, tête des vis, arbres de commande et des boutons, écusson,
etc.) et mesurer la chute de tension CA en-travers de la résistance.
Toutes les vérifications doivent être refaites après avoir inversé la
fiche du cordon d'alimentation. (Si nécessaire, une prise
d'adpatation non polarisée peut être utilisée dans le but de terminer ces vérifications.)
La tension de pointe mesurèe ne doit pas dépasser 0.75V (correspondante au courant CA de pointe de 0.5mA).
Dans le cas contraire, il y a une possibilité de choc électrique qui
doit être supprimée avant de rendre le récepteur au client.
De nombreuses pièces, électriques et mécaniques, dans les téléviseur ACL présentent des caractéristiques spéciales relatives à la sécurité, qui ne sont souvent pas évidentes à vue. Le degré de protection ne peut pas être nécessairement augmentée en utilisant des
pièces de remplacement étalonnées pour haute tension, puissance,
etc.
Les pièces de remplacement qui présentent ces caractéristiques sont
identifiées dans ce manuel; les pièces électriques qui présentent ces
particularités sont identifiées par la marque "" et hachurées dans la
liste des pièces de remplacement et les diagrammes schématiques.
Pour assurer la protection, ces pièces doivent être identiques à celles
utilisées dans le circuit d'origine. L'utilisation de pièces qui n'ont pas
les mêmes caractéristiques que les pièces recommandées par l'usine,
indiquées dans ce manuel, peut provoquer des électrocutions, incendies, radiations X ou autres accidents.
ii
LC32D44E/S/RU-BK/GY (1st Eddition)
PRECAUTIONS FOR USING LEAD-FREE SOLDER
Employing lead-free solder
• “PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The
alphabetical character following LF shows the type of lead-free solder.
Example:
Indicates lead-free solder of tin, silver and copper.Indicates lead-free solder of tin, silver and copper.
Using lead-free wire solder
• When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 °C, we recommend you to use a dedicated soldering
bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area.
Soldering
• As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 °C which is higher than the conventional lead solder by 40 °C, and as it has poor
solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be
peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the
steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and off the power of the bit as
required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
• Be careful when replacing parts with polarity indication on the PWB silk.
Power Consumption120 W (0.9 W Standby) (Method IEC60107)
Weight11.0 kg (Display only), 13.0 kg (Display with stand)
Operating temperature
TV-Standard AnalogueCCIR (B/G, I, D/K, L, L’)
DigitalDVB-T (2K/8K OFDM)
Receiving
Channel
TV-Tuning SystemAuto Preset 99 ch, Auto Label, Auto Sort
STEREO/BILINGUALNICAM/A2
RS-232C9 pin mini D-sub
EXT 1SCART (AV input, Y/C input, RGB input, TV output)
EXT 2SCART (AV input/output, Y/C input, RGB input, AV Link)
EXT 3S-VIDEO (Y/C input), RCA pin (AV input)
EXT 4Ø 3.5 mm jack (Audio input), 15 pin mini D-sub (PC)
EXT 5Audio in, Component in
EXT 6HDMI, Ø 3.5 mm jack (Audio input)
EXT 7HDMI
C. I. (Common Interface)EN50221, R206001
OUTPUTRCA pin (Audio)
HeadphonesØ 3.5 mm jack (Audio output)
VHF/UHFE2-E69ch, F2-F10ch, I21-I69ch, IR A-IR Jch, (Digital: E5-E69ch)
CATVHyper-band, S1-S41ch
32" LCD COLOUR TV
32" Advanced Super View & BLACK TFT LCD
1,049,088 pixels (1,366 x 768)
10W x 2
(100mmx35mm)x2
UHF/VHF 75Ω Din type (Analogue & Digital)
Russian/Polish
0°Cto+40°C
• As a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for
product improvement without prior notice. The performance specification figures indicated are nominal values of production
units. There may be some deviations from these values in individual units.
NOTE
• Refer to inside back cover for dimensional drawings.
Optional accessory
The listed optional accessories are available for the
LCD colour TV. Please purchase them at your nearest
shop.
• Additional optional accessories may be available in near
future. When purchasing, please read the newest catalogue
for compatibility and check the availability.
Wall mount bracket
(LC-32D44E, LC-32D44S)
1 – 1
Part namePart number
AN-37AG5
LC32D44E/S/RU-BK/GY (1st Eddition)
[2] OPERATION MANUAL
Remote control unit
1(Standby/On)
Enter standby mode or turn on the
power.
2AVMODE
Select a video setting.
30–9
Set the channel in TV and DTV mode.
Set the page in Teletext mode.
When Sweden is selected in the
country setting from the Initial
auto installation, DTV channels
are 4-digit. When another
country is selected, DTV channels
are 3-digit.
4(Flashback)
Press to return to the previous image
in normal viewing mode. (Will not work
while operating in EPG/ESG screen.)
5(WIDE MODE)
Select the wide mode.
6(Sound mode)
Select the sound multiplex mode.
(See below.)
7 EPG
DTV: To display EPG (Electronic
Programme Guide) screen.
8 ESG
DTV: To display ESG (Electronic Service
Guide) screen.
9(Teletext)
Select the TELETEXT mode. (All TV
image, DTV/DATA image, all TEXT
image, TV/TEXT image)
DTV: Select DTV data broadcasting and
TELETEXT.
10/ / /(Cursor)
Select a desired item on the setting
screen.
11 END
Exit the menu screen.
12(Reveal hidden Teletext)
13(Freeze/Hold)
Usingon the remote control unit
DTV mode:
Pressto open the multi audio screen.
Analogue TV mode:
Each time you press, the mode switches as illustrated in the following
tables.
NICAM TV broadcasts selection
SignalSelectable items
Stereo
Bilingual
Monaural
NOTE
• When no signal is input, the sound mode will display “MONO”.
NICAM STEREO, MONO
NICAM CH A, NICAM CH B,
NICAM CH AB, MONO
NICAM MONO, MONO
1
2
3
4
5
6
7
8
9
10
11
12
13
A2 TV broadcasts selection
SignalSelectable items
Stereo
Bilingual
Monaural
STEREO, MONO
CH A, CH B, CH AB
MONO
14 SURROUND
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Switch the surround effects on and off.
15 RADIO
DTV: Switch between RADIO and DTV
mode.
16(Mute)
Switchthesoundonandoff.
17 DTV
Press to access DTV mode while
watching other input sources, and vice
versa.
(This button will not work if you were
watching DTV immediately before
turning off the TV. In this case first select
any other input source except DTV
using thebutton.)
18(+/-) (Volume)
(+) Increase the volume.
(-) Decrease the volume.
19 P ( /)
TV/DTV: Select the channel.
External: Switch to TV or DTV input
mode.
11 EXT 3 terminals
12 Headphone jack
13 AC INPUT terminal
1 – 3
13
LC32D44E/S/RU-BK/GY (1st Eddition)
Appendix
Troubleshooting
ProblemPossible Solution
• No power.
• Unit cannot be operated.• External influences such as lightning, static electricity, etc., may cause improper
• Remote control unit does not
operate.
• Picture is cut off.• Is the image position correct?
• Strange colour, light colour, or
dark, or colour misalignment.
• Power is suddenly turned off.• The unit’s internal temperature has increased.
• No picture.• Is connection to other components correct?
• No sound.• Is the volume too low?
• The DTV menu screen is displayed
in monochrome and hard to select
the item.
• The TV sometimes makes a
cracking sound.
• Check if you pressedon the remote control unit.
If the indicator on the TV lights up red, press.
• Is the AC cord disconnected?
• Check if you pressedon the TV.
operation. In this case, operate the unit after first turning the power off, or
unplugging the AC cord and re-plugging it in after 1 or 2 minutes.
• Are batteries inserted with polarity (+, -) aligned?
• Are batteries worn out? (Replace with new batteries.)
• Are you using it under strong or fluorescent lighting?
• Is a fluorescent light illuminated to remote control sensor?
• Are screen mode adjustments (4:3 Mode/WSS) such as picture size made
correctly?
• Adjust the picture tone.
• Is the room too bright? The picture may look dark in a room that is too bright.
• Check the colour system setting.
• Check the HDMI Setup setting.
Remove any objects blocking vent or clean.
• Check the power control setting.
• Is sleep timer set? Press SLEEP on the remote control unit until it sets to Off.
• Is input signal type selected correctly after connection?
• Is the correct input source selected?
• Is non-compatible signal being input?
• Is picture adjustment correct?
• Is the antenna connected properly?
• Is “On” selected in “Audio Only”?
• Make sure that headphones are not connected.
• Check if you pressedon the remote control unit.
• Check if “Monochrome” is set to “On”. If so, set it to “Off”.
• This is not a malfunction. This happens when the cabinet slightly expands and
contracts according to change in temperature. This does not affect the TV’s
performance.
Cautions regarding use in high and low temperature environments
• When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly
delayed. This is not a malfunction, and the unit will recover when the temperature returns to normal.
• Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a
heater, as this may cause the cabinet to deform and the LCD panel to malfunction.
Storage temperature: -20°C to +60°C.
IMPORTANT NOTE ON RESETTING THE PIN
We suggest that you remove the following instruction from the operation manual to prevent children from
reading it. As this operation manual is multilingual, we also suggest the same with each language. Keep it in a
safe space for future reference.
1 – 4
[3] DIMENSIONS
LC32D44E/S/RU-BK/GY (1st Eddition)
575.0
575,0
523.0
523,0
52.0
52,0
699.2
699,2
776.0
776,0
402.0
402,0
200.0
200,0
393.8
393,8
332.0
332,0
73.9
73,9
94.5
94,5
230.0
230,0
200.0
200,0
110.0
110,0
1 – 5
LC32D44E/S/RU-BK/GY (1st Eddition)
LC32D44E-BK
CHAPTER 2. REMOVING OF MAJOR PARTS
Service Manual
[1] REMOVING OF MAJOR PARTS
1. Remove the 4 lock screws and detach the Stand.
2. Remove the 3 lock screws, 6 lock screws , 2 lock screw and detach the Rear Cabinet.
1
2
3
4
Rear Cabinet
2
Front Cabinet
3
4
1
Stand
2 – 1
LC32D44E/S/RU-BK/GY (1st Eddition)
3. Remove the 3 lock screws, 2 lock screws , 1 lock screws and detach the Main Shield.
4. Disconnect all the connectors from all the PWBs.
5. Remove the KEY Unit Ass'y.
Operation Button
5A5B6
7
6
5B
7
5A
Main Shield
KEY Unit
[KM]
[KM]
[FPC]
[LB]
[PD]
SP-R
[RA]
[LB]
[PD]
[SP]
SP-L
2 – 2
LC32D44E/S/RU-BK/GY (1st Eddition)
6. Remove the Speaker (L), (R).
7. Remove the 4 lock screws and detach the POWER/INVERTER Unit.
8. Remove the 2 lock screws, and detach the MAIN Unit.
9. Remove the 2 lock screws and detach the MINI AV Unit.
89
10
11
12
MINI AV Cover
11
12
Main Unit
MINI AV Unit
10
Power/Inverter Unit
Speaker(R)Speaker(L)
98
2 – 3
LC32D44E/S/RU-BK/GY (1st Eddition)
10.Remove the 1 lock screw and detach the Bottom Cover.
11.Remove the 4 lock screws and detach the Stand Fix Angle.
12.Remove the R/C, LED Unit.
13
14
15
15
R/C,LED Unit
14
Stand Fix Angle
Bottom Cover
13
2 – 4
LC32D44E/S/RU-BK/GY (1st Eddition)
13.Remove the 6 lock screws and detach the LCD Panel Module.
14.Remove the 2 lock screws and detach the LCD Fix Angle-A.
15.Remove the 2 lock screws and detach the LCD Fix Angle-B.
16.Remove the 8 lock screws and detach the Panel Fix Angle.
16
18
16
17
18
19
LCD Fix Angle-B
16
19
16
19
16
LCD Fix Angle-A
17
LCD Fix Angle-B
18
17
Panel Fix Angle
LCD Fix Angle-A
16
16
2 – 5
LC32D44E/S/RU-BK/GY (1st Eddition)
LC32D44E-BK
CHAPTER 3. ADJUSTMENT
Service Manual
[1] After replacement of any PWB and/or IC for repair, note the following.
When replacing the following units, be sure to prepare the new units loaded with updated software.
MAIN-UNIT:DUNTKE449FM02
• Note that an IC into which ROM data is written is available for MAIN-UNIT servicing (see below)
There are 2 methods to update software in the VCTp: I2C method, RS-232C HyperTerminal and RS-232C Tera Term method.
• RS-232C method is allowed when the TV is working properly and the action should be only software upgrade.
1. RS-232C Method Description (HyperTerminal).
The hardware tools requirement are:
1. A Modem-null (Cross type) DB9 female to DB9 female cable.
2. Make the connections as indicated in the figure:
ComputerTVset
TV Set
RS-232C
IOIOI
Before using RS-232C updating method is necessary to configure a Terminal PC software. HyperTerminal has been selected as a Terminal software because it’s include in all Windows versions as an accessory, and you can find it inside “Accessories\Communications” folder. For this reason, please follow carefully the next steps:
1) First time HyperTerminal is used, it’s necessary to configure some settings. Follows next action to configure two connection: low speed
(9600bps) and high speed (115200bps).
2) Create a New Connection file with name “P55_9600bps”.
3) Select a free COM port and select the Port Settings properties as follows:
3 – 1
LC32D44E/S/RU-BK/GY (1st Eddition)
4) Click on “File\Properties” menu for selecting the General and ASCII properties as follows:
5) Select “New Connection” in the File Menu.
6) Answer “Yes” to close current connection and “Yes” to save session “P55_9600bps”.
7) Create a new connection with the name “P55_115200bps”.
8) Select a the same COM port used in item 2 and select the Port Settings properties as follows:
9) Select the same General and ASCII properties as item 3.
10)Close HyperTerminal session, answering “Yes” to close current connection and “Yes” to save session “P55_115200bps”.
To start updating session, click over “P55_9600bps” icon that you can find in the “START\All programs\Accessories\ Communications\HyperTerminal\HyperTerminal” folder and follow next procedure:
3 – 2
LC32D44E/S/RU-BK/GY (1st Eddition)
1) Check the connection between TV set and PC, sending a wrong command, as for example: “aaa”. TV set returns an “ERR” label as an syntaxis
ERROR (Not correct order or sequence).
2) Send the command “DWMD” to enter TV set in Download Mode. The TV set answer sending same symbol continuosly. If this symbol character
doesn’t appear, please don’t worry and pass to next step.
3) Close this connection and open “P55_115200bps” connection clicking over the “P55_115200bps” that you can find in “START\All programs\Accessories\ Communications\HyperTerminal\HyperTerminal” folder.
4) Using “Transfer\Send file...” menu, select desired file (.bin format) and the transmission protocol (Xmodem) as show below.
5) After press “Send” button the updating process starts as follows:
6) When flash update process finishes, the “Flash Programming Complete” label appears in the screen, the device automatically go to switch off,
and in a few seconds go to switch on again.
VERY IMPORTANT NOTE:
During the updating time, please don’t use the PC for other purpouses, in order to abolish communication problems between TV set and
PC. If TV set was not updated properly, the TV won’t have the software to startup again, and you must follow the “I2C method” to update
another time the TV set.
3 – 3
LC32D44E/S/RU-BK/GY (1st Eddition)
2. RS-232C Method Description (Tera Term)
The hardware tools requirement are:
1. A Modem-null (Cross type) DB9 female to DB9 female cable.
2. Make the connections as indicated in the figure:
ComputerTVset
TV Set
Software requirements:
To upgrade VCTp software from RS-232C external connector is necessary to use a Tera Term (Pro) free software.
Copy all the distribution files to an empty floppy disk or temporary directory (for example C:\ TEMP).
Run SETUP.EXE and follow the instruction given by it.
After the installation, the distribution? les are no longer needed, you can delete them or may keep them in the floppy disk.
Ho w to us e Tera Te rm Pro :
When the Tera Term (Pro) program is used, it’s necessary to shape some settings. Follows next action to configure the connection:
RS-232C
IOIOI
3 – 4
1) Select: Serial→COM X→ O.K.
2) Select: Ter minal
LC32D44E/S/RU-BK/GY (1st Eddition)
3) Choose the same options as the above picture.
3 – 5
LC32D44E/S/RU-BK/GY (1st Eddition)
4) Select: Setup→Serial port →O.K. Appear the follow screen:
5) Select follows settings:
Serial port to use: COM x
Baud rate:9600
Data:8 bits
Parity:none
Stop:1 bit
Flow control:none
Enter O.K.
6) Check the connection between TV set and PC, sending a wrong command, as for example: “aaa”. TV set returns an “err” label as an syntaxes
ERROR (Not correct order or sequence).
Send a “DWMD” (capital letters) command to enter TV set in Download Mode.
Change a baud rate to 115200.
Select: Setup → Baud rate→115200 →O.K.
3 – 6
7) Select: File → Transfer→XMODEM →Sent
8) Choose the file for upgrade and click “Open”.
LC32D44E/S/RU-BK/GY (1st Eddition)
9) After select “Open” the upgrade process starts as follows:
3 – 7
LC32D44E/S/RU-BK/GY (1st Eddition)
10)When flash update process finishes, the “Flash programming complete” label appear in the screen, the device automatically go to switch off, and
in a few seconds go to switch on again.
VERY IMPORTANT NOTE:
During the updating time, please don’t use the PC for other purposes, in order to abolish communication problems between TV set and PC.
If TV set was not updated properly, the TV won’t have the software to startup again, and you must follow the “I2C method”
another time the TV set.
3. How to update the Digital Board Software.
There are 2 methods to update the Digital Board Software on Flash Memory (IC4251) throught the Digital Processor (IC4001).
• RS-232 Method (From PC trough RS-232C COM port).
• PCMCIA CARD (Compact Flash Memory) Method.
NOTE: The PCMCIA method is only compatible with those PCs running XP Windows Version.
to update
3.1. Jig RS-232 Method Description
• Hardware requirements:
1. A modem null (Cross type) DB9 female to DB9 female cable.
2. Make the connections as in the below figure.
Computer
RS-232C serial control cable
(cross type, commercially available)
TVSet
(CITerminal)
TV Set
Jig
~
~
RS-232C
IOIOI
• Software requirements:
1. “Winupload” application software on PC.
3 – 8
• How to setup the “Winupload” software for the first time:
1. Start “Winupload”. It will appear the following picture.
2. Select the most suitable RS232 Serial Port from “Port Setting” - “Process” Menu.
LC32D44E/S/RU-BK/GY (1st Eddition)
3. Select the following settings from “Port Settings” Menu.
Bits Per Second: 115200
Parity: None
Data bits: 8
Stop bits: 1
Hardware Flow Control: OFF
• Procedure for updating the TV set.
1. Switch off the TV set to be updated, in DTV mode.
2. Start “Winupload”. It will appear the following picture on PC.
3 – 9
LC32D44E/S/RU-BK/GY (1st Eddition)
3. Establish connection on Winupload Software.
4. Select “Upload URT file”
5. Select and open the “.urt” data file from data directory
NOTE: Consider the version shown below just an example, may be is not the latest one, and could be different depending on the TV set destination
(market/Country) or model.
6. Switch On the TV Set (previously in DTV Mode). The Uploading Process starts automatically.
3 – 10
LC32D44E/S/RU-BK/GY (1st Eddition)
While the TV set is uploading the software, the following information is shown on the TV set screen.
Then, data transfer from PC to TV set finishes when the “Upload progress completed” label appears in the “Winupload” screen. Now, the TV set made
some additional verification (Items #2 to #7). When the full uploading process is finished, in the “Winupload” window appears the label “Preparing to
start application” for a new TV Set, and just now, in the TV screen of the updated set, appears a congratulations label (Item #8).
NOTE: Do not turn off the TV set while the software updating was in progress.
7. Unplug the AC cord.
8. Disconnect the Jig from TV Set.
• Software Version verification procedure.
1. Connect the AC cord and Switch On the TV Set.
2. Select DTV Menu on TV Set. The following On Screen Display will appear.
3. Select “Version”. The updated version can be verified.
NOTE: Consider the version shown above just as example, may be is not the latest one, and could be different depending on the TV set destination
(market/Country) or model.
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LC32D44E/S/RU-BK/GY (1st Eddition)
4. Software Version Upgrade Using Card
1. Write the software (ATV and DTV) on the PCMCIA CARD by following the procedure described in the separate document, “How to write software
(ATV and DTV) to PCMCIA CARD”.
(* In the document, both ATV and DTV are written; you may write either of them.)
(You can equally use any version after “Storage Media Manager Version 1.3.1”.)
2. Turn off the power.
(* You can select either of the mode ATV or DTV. In this document, ATV is selected.)
3. Insert the PCMCIA CARD with the upper side facing up into the card slot.
(* Do not insert the card with the upper side facing down.)
4. Turn on the power. After a short time, the message, “SYSTEM SOFTWARE UPDATE IN PROGRESS. ...) appears and the software upgrade
starts.
If the ATV software upgrade is necessary, the step proceeds to (5); if unnecessary, the DTV software upgrade starts and the step proceeds to (7).
5. If the ATV software upgrade is necessary, the following display appears and the upgrade starts.
When the status bar reaches 100 %, the ATV upgrade is complete. Then the system restarts from the ATV mode. The step proceeds to (6).
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LC32D44E/S/RU-BK/GY (1st Eddition)
6. The message, “SYSTEM SOFTWARE UPDATE IN PROGRESS. ...” appears again and the DTV software upgrade starts. Then the step proceeds
to (7).
7. After a short time, the message, “Congratulations! ...” appears. The upgrade is complete.
(Note: You cannot downgrade the ATV software but can downgrade the DTV software.)
[3] Entering and exiting the adjustment process mode
1) Unplug the AC power cord of running TV set to force off the power.
2) While holding down the “VOL (-)” and “INPUT” keys on the set at once, plug in the AC power cord to turn on the power.
The letter appears on the screen.
3) Next, hold down the “VOL (-)” and “P()” keys on the set at once.
Multiple lines of orange characters appearing on the screen indicate that the set is now in the adjustment Process mode.
If you fail to enter the adjustment process mode (the display is the same as normal startup), retry the procedure.
4) To exit the adjustment process mode after the adjustment is done, unplug the AC power cord to force off the power. (When the power is turned off
with the remote controller, once unplug the AC power cord and plug it in again. In this case, wait 10 seconds or so before plugging.)
Caution: Use due care in handling the information described here lest the users should know how to enter the adjustment process mode.
If the settings are tampered with in this mode, unrecoverable system damage may result.
[4] Remote controller key operation and description of display in adjustment process mode.
1. key operation
Remote controller keyMain unit keyFunction
P ( /)
(+ / –) (+ / –)
Cursor (/)
Cursor (/)
Input button on remote
controller
OK——————Executing a function
* Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available.
P ( /)Moving an item (line) by one (UP/DOWN)
Changing a selected line setting (+1/-1)
——————Turning a page (PREVIOUS/NEXT)
——————Changing a selected line setting (+10/-10)
1Main VersionLEW07 01XX(XX/XX0/XX) Main microprocessor version
2Dev VersionXXDTV microprocessor version
3Dev Loader VersionXXDTV microprocessor-Loader version
4Pic VersionxxxxxxPic MICON version
5TEMP SENSORxxxxxx
6NORMAL STANDBY CAUSE RC_STANDBY
7ERROR STANDBY CAUSE[1] 00H 00MError standby cause Total operating time before error
[2] 00H 00M
[3] 00H 00M
[4] 00H 00M
[5] 00H 00M
2/11[INIT]
1Factory Init[EURO/RUSSIA/SWEDEN]Initialization to factory settings execution
2Inch SettingXXInch present setting
3Public ModeOFF/ONHOTEL MODE flag setting
4Center AcutimexxH xxMMain operating hours
5RESETOFF/ONMain operating hours reset
6Backlight AcutimexxH xxMBacklight operating hours
7RESETOFF/ONBacklight operating hours reset
8Picture Read Pos X0-xxxx-axis setting of picture data
9Picture Read Pos Y0-xxxy-axis setting of picture data
10Picture ReadON/OFFStart/stop of picture data
3/11[PAL.SECAM.N358]
1RF-AGC ADJENTERRF-AGC auto adjustment execution
2PAL+TUNER ADJENTERPAL TUNER auto adjustment execution
3PAL ADJENTERPAL auto adjustment execution
4TUNER ADJENTERTUNER auto adjustment execution
5CONTRAST SD32PAL contrast adjustment
6SECAM CB OFFSET1SECAM offset adjustment
7SECAM CR OFFSET1SECAM offset adjustment
8TUNER A DAC32TUNER DAC adjustment
9RF AGC16RF AGC adjustment
4/11[COMP 15K]
1COMP 15K ADJENTERCOMP15K auto adjustment execution
2COMP 15K CONTRAST40Contrast adjustment
5/11[HDTV]
1HDTV CONTRAST41HDTV Contrast adjustment
6/11[SMPTE]
1RF-AGC ADJENTERRF-AGC auto adjustment execution
2PAL-AGC ADJENTERPAL AGC auto adjustment execution
3PAL ADJENTERPAL auto adjustment execution
4TUNER ADJENTERTUNER auto adjustment execution
5CONTRAST SD30PAL contrast adjustment
6SECAM CB OFFSET1SECAM offset adjustment
7SECAM CR OFFSET1SECAM offset adjustment
8TUNER A DAC36TUNER DAC adjustment
9RF AGC16RF AGC adjustment
7/11[M GAMMA INFO]
1M GAMMA IN 1160W/B adjustment, gradation 1 input setting
2M GAMMA IN 2320W/B adjustment, gradation 2 input setting
3M GAMMA IN 3480W/B adjustment, gradation 3 input setting
4M GAMMA IN 4640W/B adjustment, gradation 4 input setting
5M GAMMA IN 5800W/B adjustment, gradation 5 input setting
6M GAMMA IN 6960W/B adjustment, gradation 6 input setting
7M GAMMA WRITEOFF/ONEEP writing of adjustment values
8M GAMMA RESETOFF/ONInitialization of adjustment values
1M GAMMA R 10W/B adjustment, gradation 1R adjustment value
2M GAMMA G 10W/B adjustment, gradation 1G adjustment value
3M GAMMA B 10W/B adjustment, gradation 1B adjustment value
4M GAMMA R 20W/B adjustment, gradation 2R adjustment value
5M GAMMA G 20W/B adjustment, gradation 2G adjustment value
6M GAMMA B 20W/B adjustment, gradation 2B adjustment value
7M GAMMA R 30W/B adjustment, gradation 3R adjustment value
8M GAMMA G 30W/B adjustment, gradation 3G adjustment value
9M GAMMA B 30W/B adjustment, gradation 3B adjustment value
10M GAMMA WRITEOFF/ONEEP writing of adjustment values
9/11[M GAMMA 4-6]
1M GAMMA R 40W/B adjustment, gradation 4R adjustment value
2M GAMMA G 40W/B adjustment, gradation 4G adjustment value
3M GAMMA B 40W/B adjustment, gradation 4B adjustment value
4M GAMMA R 50W/B adjustment, gradation 5R adjustment value
5M GAMMA G 50W/B adjustment, gradation 5G adjustment value
6M GAMMA B 50W/B adjustment, gradation 5B adjustment value
7M GAMMA R 60W/B adjustment, gradation 6R adjustment value
8M GAMMA G 60W/B adjustment, gradation 6G adjustment value
9M GAMMA B 60W/B adjustment, gradation 6B adjustment value
10M GAMMA WRITEOFF/ONEEP writing of adjustment values
10/11[ETC]
1EEP CLEAROFF/ONClear of all adjustment value
2EEP CLEAR BOFF/ONClear of adjustment value of B mode
3STANDBYCAUSE RESETOFF/ONReset of STANDBY CAUSE
4AUTO INSTALLATION SW0/11: * * * 0: * * *
5OPTION 0
6COUNTRYAUTO/EURO/UKDestination setting
7L ERR RESET0LAMP ERR RESET Initializatio of L_ERR
8L ERR STOP0/1LAMP ERR Inhibit L_LRR detection
9DTV CLRENTERClear of DTV setting
10I2C-OFFENTERI2C DATA execution
11/11[COM-BIAS]
1VCOM ADJ63INVERTER drive frequency setting
2TEST PATTERN0INVERTER drive frequency setting
[6] Special features
* ERROR STANDBY CAUSE (Page 1/11)
The total time when the unit enters the standby due to operational error and cause of error are recorded on EEPROM as much as possible.
The values can be used to locate the fault for repair.
* EEP CLEAR (Page10/11)
Clear of process adjustment EEP value.
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LC32D44E/S/RU-BK/GY (1st Eddition)
[7] Video signal adjustment procedure
* The adjustment process mode menu is listed in Section 5.
1. Signal check
1. Signal generator level adjustment check (Adjustment to the specified level)
• Composite signal PAL: 0.7Vp-p ±0.02Vp-p (Pedestal to white level)
• 15K component signal (50 Hz): Y level 0.7Vp-p ±0.02Vp-p (Pedestal to white level)
2. Entering the adjustment process mode
1. Enter the adjustment process mode according to Section 3.
• Feed the COMPONENT 15K 100% full field colour bar signal
(100% colour saturation) to EXT5 COMPONENT IN.
2Auto adjustment
performance
Adjustment process
Page4
100% white
Bring the cursor on [COMP15K ADJ] and press [OK]
[***OK***] appears when finished.
Black
[8] White Balance Adjustment
Adjustment gradation values (IN) appear on page 7/11 of process adjustment, and adjustment initial values (offset value) appear on pages 8/11 and
9/11. For white balance adjustment, adjust the offset values on pages 8/11 and 9/11.
[Condition of the unit for inspection] Modulated light: MAX (+8)
[Adjustment reference device] Minolta CA-210
[Adjustment]
Check that the values on page 7/11 of process adjustment are set as below. If not, change them accordingly.
M GAMMA IN 1160M GAMMA IN 2320
M GAMMA IN 3480M GAMMA IN 4640
M GAMMA IN 5800M GAMMA IN 6960
1) Display the current adjustment status at point 6. (Page 8/11 of process adjustment)
The display for checking the adjustment status is toggled by pressing the “6” button on the remote control.
3) Change M GAMMA R6/M GAMMA B6 (Adjustment offset value) on page 9/11 of process adjustment so that the values of the luminance meter
approach x = 0.272 and y = 0.277.
(Basically, G is not changed. If adjustment fails with R and B, change G. When G is lowered, the weaker of R and B must be fixed.)
4) If G is changed in step 3), change the values of M GAMMA G1-M GAMMA G5 on pages 8/11 and 9/11 of process adjustment as follows. When not
changed, go to step5).
Offset value of M GAMMA G1 = (Offset value of M GAMMA G6) * (160/960)
Offset value of M GAMMA G2 = (Offset value of M GAMMA G6) * (320/960)
Offset value of M GAMMA G3 = (Offset value of M GAMMA G6) * (480/960)
Offset value of M GAMMA G4 = (Offset value of M GAMMA G6) * (640/960)
Offset value of M GAMMA G5 = (Offset value of M GAMMA G6) * (800/960)
5) Display the adjustment status of the current point 5. (Each time the “5” button on the remote control is pressed, the adjustment status check display is toggled.)
Change M GAMMA R5/M GAMMA B5 (adjustment offset value) on page 9/11 of process adjustment so that the values of the luminance meter
approach x = 0.272 and y = 0.277.
1) Get ready the PC with COM port (RS-232C) running on Windows 95/98/ME/2000/XP operating system, as well as the RS-232C cross cable.
2) Start the unit with the RS-232C cable connected.
3) Start the terminal software. (The freeware readily available on the Internet will do.)
4) Make the following settings.
Baud rate9,600 bps
Data LENGTH8 bit
Parity bitNone
Stop bit1 bit
Flow controlNone
5) If the settings are correct, the terminal software indicates "ERR" against pressing of the "ENTER" key.
6) After the settings are done correctly, it is possible to make an adjustment by typing in the command shown in the table below and pressing the
"ENTER" key on the keyboard.
7) Command entry is successful if the terminal software indicates "OK" when the "ENTER" is pressed. If "ERR" is shown, retry to enter the command.
8) Send the process mode switching command to switch from the RS232C operation mode to the process mode.
KRSW0001: "ERR" is returned.
KKT10037: When "OK" is returned, the process mode becomes active. When "ERR", start over from KRSW0001.
9) Send each adjustment command.
RS-232C command list
CommandFunctionRemarks
KYOF0000Remote control disabled
OSDS0001OSD display inhibited
SBSL0016Light control level MAX
MSET0001Background adjustment start
MSET0004Initialization of adjustment value
LEV60928Gradation 6 (928-gradation adjustment)
MG6G ****Adjustment of G of gradation 60000 ~4095
MG6R ****Adjustment of R of gradation 60000 ~ 4095
MG6B ****Adjustment of B of gradation 60000 ~ 4095
LEV50800Gradation 5 (800-gradation adjustment)
MG5G ****Input of G of gradation 5Calculated value
MG5R ****Input of R of gradation 50000 ~4095
MG5B ****Input of B of gradation 50000 ~ 4095
LEV40656Gradation 4 (656-gradation adjustment)
MG4G ****Input of G of 4Calculated value
MG4R ****Input of R of 40000 ~4095
MG4B ****Input of B of 40000 ~ 4095
LEV30528Gradation 3 (528-gradation adjustment)
MG3G ****Input of G of 3
MG3R****Input of R of 30000 ~ 4095
MG3B ****Input of B of 30000 ~ 4095
LEV20352Gradation 2 (352-gradation adjustment)Calculated value
MG2G ****Input of G of 20000 ~ 4095
MG2R ****Input of R of 20000 ~ 4095
MG2B ****Input of B of 20000 ~ 4095
LEV10184Gradation 1(176-gradation adjustment)
MG1G ****Input of G of 1Calculated value
MG1R ****Input of R of 10000 ~ 4095
MG1B ****Input of B of 10000 ~ 4095
MSET0003Writing of adjustment value
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LC32D44E/S/RU-BK/GY (1st Eddition)
[10] Initialization to factory settings
Caution: When the factory settings have been made, all user setting data, including the channel settings, are initialized.
After adjustments, exit the adjustment process mode.
To exit the adjustment process mode, unplug the AC power cord from the outlet to forcibly turn off the power.
When the power is turned off with the remote control, unplug the AC power cord and plug it back in (wait approximately 10 seconds before plugging
in the AC power cord)
(The adjustments done in the adjustment process mode are not initialized.) Keep this in mind when initializing these settings.
• Use the R/C key to select a destination [EURO/RUSSIA/
SWEDEN]. And, press the [OK] key.
• “EXECUTING...” appears and initialization starts.
• After a while, “*** OK ***” appears and the setting is complete.
NOTE: Never turn the power off during initialization.
When performing factory settings (while displaying page 2 of adjustment
process), confirm that the item “Inch Setting” or the panel size displayed
in the upper right corner corresponds to each panel size.
The following settings will be back to their factory ones.
1. User settings
2. Channel data (e.g. broadcast frequencies)
3. Maker option setting
4. Password data
[11] Lamp error detection
1. Function description
This LCD colour television has a function (lamp error detection) to be turned OFF automatically for safety when the lamp or lamp circuit is abnormal
If the lamp or lamp circuit is abnormal, or some other errors happen, and the lamp error detection is executed, the following occur.
1- The main unit of television is turned OFF 5 seconds after it is turned ON. (The power LED on the front side of TV turns from green to red.)
2 - If the situation “1” happens 5 times sequentially, the power is turned on (relay is turned ON).
However, the backlight is not turned on, and then the relay is turned OFF after 5 to 6 seconds. (The power LED turns from green to red.)
2. Countermeasures
When television is turned OFF by the lamp error detection mentioned above, it enters the adjustment process with the power LED red. Entering the
adjustment process turns OFF the error detection and turns ON TV. This enables the operation check to detect errors in the lamp or lamp circuit
Check whether “L ERROR RESET” on point 7, page 10/11 of the adjustment process is 1 or more. If it is 1 or more, it indicates the lamp error detection was executed. After confirming that the lamp or lamp circuit is normal, reset the lamp error counter pushing “OK” in the R/C. After resetting
counter the label “***OK***” appears on Screen.
3. Reset standby cause error list
After confirming that the lamp error counter has been erased, select “STAND BY CAUSE RESET” on point 3, page 10/11 of the adjustment process
and select ON using the right cursor. For execute press “OK” in the R/C and the label “***OK***” appears on Screen.
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LC32D44E/S/RU-BK/GY (1st Eddition)
[12] Public Mode (Hotel Mode)
1. How to Enter in the Public Mode (Hotel Mode).
Turn on the power and enter in the Adjustment Process mode as usual.
In the [INIT], Page 2/11 of Service, turns ON the Public Mode option.
Turn off TV by pressing Main Power switch.
While pressing “VOL+” and “INPUT” keys at the same time, press Main Power switch for more than 2 seconds.
Then, when you are asked for the password, enter “027”.
After this sequence the TV will turn on showing the Public Mode setting screen as follows:
Is possible to select each item of function by pressing cursor UP/DOWN keys on the remote control or CH()() keys on the LCD TV. (Except
DTV)
The setting position of each item of functions is made by pressing cursor RIGHT/LEFT keys on the remote control or VOL (+) / (-) keys on the LCD
TV.
Select EXECUTE position after you set all function, and press cursor RIGHT/LEFT keys on the remote control or VOL (+) / (-) keys on the LCD TV for
confirmation.
2. Public Mode Settings.
1. POWER ON FIXED [VARIABLE FIXED]
When it is set to “FIXED” the TV is impossible to be switch off by Main Switch or Remote Control.
2. MAXIMUM VOLUME [0 60]
Is possible to set the maximum volume at limited level.
3. VOLUME FIXED [VARIABLE FIXED]
Is possible to fix the sound volume at limited level.
When “FIXED” is selected the sound volume before limited is fixed.
4. VOLUME FIXED LEVEL [0 60]
If “FIXED” has been selected, is possible to set a fixed volume at the level that is chosen.
5. RC BUTTON [RESPOND NO RESPOND]
If “NO RESPOND” is selected, the remote control keys are inoperative.
6. PANEL BUTTON [RESPOND NO RESPOND]
If “NO RESPOND” has been selected, the set’s keys remain deactivated (Except POWER key).
7. MENU BUTTON [RESPOND NO RESPOND]
If “NO RESPOND” has been selected, “MENU” key, of remote control, is inoperative.
8. ON SCREEN DISPLAY [YES NO]
If “NO” has been selected, the On Screen Display does not appear.
When any other item than “NORMAL” has been selected, the sets will start in a selected input mode at the next power-on.
10.INPUT MODE FIXED [VARIABLE → FIXED]
“FIXED” has been selected, any channels and input modes other than those selected at the start mode cannot be picked up.
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LC32D44E/S/RU-BK/GY (1st Eddition)
11.RESET
Cancel all Public Mode settings. (It returns to the factory settings)
12.EXECUTE
Select this item, and press cursor RIGHT / LEFT keys on the remote control or VOL (+) / (-) keys on the LCD TV for confirmation the functions settings.
3 – 26
LC32D44E-BK
CHAPTER 4. TROUBLE SHOOTING TABLE
Service Manual
[1] TROUBLE SHOOTING TABLE
No power supply (Front LED does not light up) and no power-up even if turned on (Front LED light up).
LC32D44E/S/RU-BK/GY (1st Eddition)
Is the wire harness in the unit properly connected?
YES
Are F7101 and F7103 normal?
YES
Is F7102 normal?
YES
Is BU5V supplied from PIN(11) of connector CN7201
when the power switch is turned on?
YES
Is the PS_ON signal sent to PIN(10) of connector CN7201
when turning on the power switch and does RL7101 normally work?
NO
NO
NO
NO
NO
Reconnect and recheck the wire harness.
Are L7101-2, L7110, C7104-5, VA7103, D7101, etc. faulty? Check if
the peripheral circuits are short-circuited.
Are T7101, D7104, TH7101, C7118, etc.faulty? Check if the peripheral circuits are short-circuited.
Check the peripheral circuits on the primary side of IC7101, T7101,
etc. and the secondary side of D7222, D7215, L7206, PC7104, etc.
Check the peripheral circuits such as PS_ON circuits of Q7207,
PC7103, RL7101, etc.
YES
Is a DC voltage of approx. 400V applied to both ends of
C7129?
YES
Is 13V supplied from PIN(1-4) of connector CN7201 when
the power switch is turned on?
YES
Is 60V supplied when the power switch is turned on?
NODoes the PFC circuit normally work?
NOCheck the primary side of T7102-3, Q7111-6, etc., the secondary side
NO
(Check IC7102, L7103, L7104, D7106, D7108, TH7102, Q7104-5,
Q7117, etc. and the peripheral circuits.)
of D7203, etc., the peripheral circuits and the protection circuits of
D7205, D7208, PC7102, etc.
Check the secondary side of D7201, the protection circuits of D7206,
D7207, D7209, PC7102, etc. and the peripheral circuits.
4 – 1
LC32D44E/S/RU-BK/GY (1st Eddition)
The backlight does not light
Are all fluorescent lamps on?
NO
Is F7501 normal?
YES
Is 60V applied to both ends of C7501?
YES
Is a voltage of 13V applied to PIN(20) of IC7501?
YES
Is the STB_ON/OFF signal supplied from PIN(2) of
CN7502?
YES
Is each control signal of connector CN7502 normally function?
PIN(3) OFL (PWM light control signal input)OFL (PWM light control signal input)/H: Lamp ON, L: Lamp OFF
NOCheck the STB signal line on the MAIN_UNIT side and the peripheral
NOCheck each control circuit.
Check each fluorescent lamp, and replace if defective.
(CN7503-12, etc.)
Check if the peripheral circuits are short-circuited or parts are faulty.
(Q7501, Q7503, etc.)
Refer to "No power supply (Front LED does not light up)" and "No
power-up even if turned on (Front LED light up)".
Check the 13V line and the peripheral circuits.
circuits.
(P2303/CN7502, etc.)
REG2 (Light control method identification)/H: External PWM input, L:
Analog voltage input
ADIM (Tube current setting)/H: Tube current 12mA, L: Tube current
8.5mA
YES
Is [0] displayed as the number of [LAMP_ERROR] in the
process mode?
YES
Is the drive output signal sent from PIN(16) and (15) of
IC7501?
YES
Does the drive output circuit normally work?
YES
Does the secondary side of T7501-5 normally work?
YES
Check if the feedback circuit is normal.
(D7501-5, D7507-11, D7513-17, etc.)
NO
NO
NO
NO
Reset the number of [LAMP_ERROR] to the default value in the process mode.
Check IC7501and the peripheral circuits.
Are Q7509-10, Q7501-4, etc. faulty? Check the peripheral circuits.
Is T7501-5, etc. faulty? Check the peripheral circuits.
4 – 2
No sound output in all modes.?
LC32D44E/S/RU-BK/GY (1st Eddition)
The sound is not emitted from the speaker though the picture has come out.
Is the audio signal output of pins (28/L) and (27/R) of
IC3001 (MAIN_MICON) normal?
YES
Is audio signal input to pin(5/L), pin(9/R) of IC2701(AMP)?
YES
Is MUTE circuit [MUTE_SP_LINE, RESET_N_LINE] normal?
YES
Is the audio signal output of pins (3, 4) (L-ch) and (2, 1)
(R-ch) of P2701(AOUDIO-CONNECTOR) normal?
YES
Check Speaker (right and left) and wire harness.
No sound (during the reception of TV(ANALOG) broadcasting)
NO
NO
NO
NO
Check IC3001 and its peripheral circuits.
Check the line between IC3001 and IC2701.
Check the MUTE_SP_LINE and RESET_N_LINE.
(Q2701, etc.)
Check IC2701 and its peripheral circuits.
Does not the sound go out though the picture has come out when UHF/VHF is received?
Is the SIF signal output from pin (4) of TUNER (TU201)?
YES
Is the SIF signal sent to pins (31) of IC3001
(MAIN_MICON)?
YES
Refer to “No sound output in all modes”.
NO
NO
Check the tuner and its peripheral circuits.
Replace as required.
Check the line between TU201 and IC3001.
4 – 3
LC32D44E/S/RU-BK/GY (1st Eddition)
No sound (during the reception of TV(DIGITAL) broadcasting)
Does not the sound go out though the picture has come out when DTV is received?
Is the audio signal output from PIN(24,25)/ LETFT_M/P,
PIN(28,29)/ RIGH_M/P of IC4001(SETTOP_BOX_DECODER).
YES
Is the audio signal input to PIN(6,5)/ LETFT_M/P, (2,3)/
RIGH_M/P of IC4005(OP-AMP)?
YES
Is the audio signal sent from PIN(7)/ AIN1L, (1)/AIN1R of
IC4005 to PIN(10), PIN(9) of IC3001 (MAIN_MICON)?
Refer to “No sound output in all modes”.
Does not the sound of the audio signal input to EXT1(SCART1) go out?
Does not the sound of the audio signal input to EXT2(SCART2) go out?
EXT1
Is the audio signal properly sent to pins (6) (AIN3_L) and
(2) (AIN3_R) of SCART1(SC1102)?
EXT2
Is the audio signal properly sent to pins (6) (AIN2_L) and
(2) (AIN2_R) of SCART2(SC1101)?
YES
No sound from external input devices (1)
NO
NO
NO
NO
NO
Check IC4001 and its peripheral circuits.
Check the line between IC4001 and IC4005.
Check the line between IC4005 and IC3001.
Check the setting of an external input device that connects of
SC1102.
Check the setting of an external input device that connects of
SC1101.
YES
EXT1
Is the audio signal properly sent to pins (14) (AIN3_L) and
(13) (AIN3_R) of IC3001(MAIN_MICON)?
EXT2
Is the audio signal properly sent to pins (12) (AIN2_L) and
(11) (AIN2_R) of IC3001(MAIN_MICON)?
YES
Refer to “No sound output in all modes”.
NO
Check the line between SC1102 and IC3001.
NO
Check the line between SC1101 and IC3001.
4 – 4
No sound from external input devices (2)
Does not the sound of the audio signal input to EXT3 go out?
MINI AV UNIT:
Is audio signal output from pin(5/IN3L), (4/IN3R) of input
terminal J1002 to pin(8), (6) of connector SC1001?
MAIN UNIT:YES
Is audio signal input to pin(8/IN3L), (6/IN3R) of connector
P1001?
YES
Is audio signal input to pin(1/IN3L), (6/IN3R) of IC1301
(AUDIO_SELECTOR)?
YES
Is the audio signal sent to pin (15/AIN4L), (11/AIN4R) of
IC1301?
NO
NO
NO
NO
LC32D44E/S/RU-BK/GY (1st Eddition)
Check connection of between from J1002 to SC1001 and the external input device.
Check the connector(SC1001/ P1001).
Check the line between P1001 and IC1301.
Check IC1301 and its peripheral circuits.
YES
Is audio signal input from pin (15/AIN4L), (11/AIN4R) of IC1301 to pin (16, 15) of IC3001 (MAIN_MICON)?
YES NO
Refer to “No sound output in all modes”Check the line between IC1301 and IC3001.
No sound from external input devices (3)
Does not the sound of the audio signal input to EXT4 go
out?
Is audio signal sent from pin(2/L) and (3/R) of input terminal J1301 to pin(5) and (8) of IC1301
(AUDIO_SELECTOR)?
YES
Does not the sound of the audio signal input to EXT6(Analog) go
out?
Whether "Analog" has selected it in the Audio setup of the HDMI
option is checked.
Is audio signal sent from pin(2/L) and (3/R) of input terminal J1302
to pin(3) and (7) of IC1301(AUDIO_SELECTOR)?
NO NO
Check the connection between J1301 and the peripheral
circuit, the external input devices.
Is the audio signal sent to pin (15/AIN4L), (11/AIN4R) of
IC1301?
Check the connection between J1302 and the peripheral circuit, the
external input devices.
NO
Check IC1301 and its peripheral circuits.
4 – 5
LC32D44E/S/RU-BK/GY (1st Eddition)
YES
Is audio signal input from pin (15/AIN4L), (11/AIN4R) of IC1301 to pin (16, 15) of IC3001 (MAIN_MICON)?
YES NO
Refer to “No sound output in all modes”Check the line between IC1301 and IC3001.
No sound from external input devices (4)
Does not the sound of the audio signal input to EXT5 go out?
Is audio signal output from pin(2/COMP_AL), (4/
COMP_AR) of input terminal J1303 to pin(13), (9) of
IC1301 (AUDIO_SELECTOR)?
YES
Is the audio signal sent to pin (15/AIN4L), (11/AIN4R) of
IC1301?
YES
Is audio signal input from pin (15/AIN4L), (11/AIN4R) of IC1301 to pin (16, 15) of IC3001 (MAIN_MICON)?
YES NO
Refer to “No sound output in all modes”Check the line between IC1301 and IC3001.
No sound from external input devices (5)
Does not the sound of the audio signal input to EXT6/7(HDMI) go out?
Is picture of the signal input from EXT6/7 displayed?
NO
NO
NO
Check connection of between from J1303 to IC1301 and the external
input device.
Check IC1301 and its peripheral circuits.
Refer to “Does not the picture of the HDMI signal input to EXT6/7 go
out?”.
YES
Is the HDMI_SCK/ WS/ SD0 audio signal output from
pin(86), (85), (84) of IC1951 (HDMI RECEIVER) to pin(39),
(40), (38) of IC3001 (MAIN_MICON)?
YES
Refer to “No sound output in all modes”.
NO
Check the line between IC1951 and IC3001, and their peripheral circuits.
4 – 6
No audio signal output from SCART1 terminal.
LC32D44E/S/RU-BK/GY (1st Eddition)
The audio signal is not output (1)
Is audio signal sent to pins (3/L-ch) and (1/R-ch) of
SCART1(SC1102)?
NO
Is S-MUTE-LINE [pin(62) of IC2302(SUB_MICON)] at H?
NO
Is audio signal sent to pins (24/L-ch) and (23/R-ch) of
IC3001(MAIN_MICON)?
NO
Check IC3001 and its peripheral circuits.
No audio signal output from SCART2 terminal.
Is audio signal sent to pins (3/L-ch) and (1/R-ch) of
SCART2(SC1101)?
YES
YES
YES
The audio signal is not output (2)
YES
Check the connection to SCART1 and external devices.
Check the peripheral circuits of IC2302 and S-MUTE_LINE.
(Q1101, etc.)
Check the line between SC1102 and IC3001.
(Q1106, Q1105, etc.)
Check the connection to SCART2 and external devices.
NO
Is S2-MUTE-LINE [pin(63) of IC2302(SUB_MICON)] at H?
NO
Is audio signal sent to pins (22/L-ch) and (21/R-ch) of
IC3001(MAIN_MICON)?
NO
Check IC3001 and its peripheral circuits.
YES
YES
Check the peripheral circuits of IC2302 and S2-MUTE_LINE.
(Q1102, etc.)
Check the line between SC1101 and IC3001.
(Q1108, Q1107, etc.)
4 – 7
LC32D44E/S/RU-BK/GY (1st Eddition)
NO
No audio signal output from AUDIO_OUTPUT terminal.
The audio signal is not output (3)
Is audio signal output to pin(2/L-ch), (4/R-ch) of audio output terminal J1304?
NO
Is S-MUTE-LINE [pin(62) of IC2302(SUB_MICON)] at H?
NO
Is audio signal sent to pins (22/L-ch) and (21/R-ch) of
IC3001(MAIN_MICON)?
NO
Check IC3001 and its peripheral circuits.
No sound from HEDPHONE_OUTPUT terminal.
Is the HP_PLUG signal input into pin (208) of
MAIN_UNIT's IC3001 (MAIN_MICON) from pin (6) of a
headphone terminal (J1003)?
YES
YES
YES
The audio signal is not output (6)
NO
Check the connection to J1304 and external devices.
Check the peripheral circuits of IC2302 and S-MUTE_LINE.
(Q1303, etc.)
Check the line between J1304 and IC3001.
(Q1302, Q1301, etc.)
Check the line between J1003 and IC3001.
(SC1001/P1001, IC3001, etc.)
YES
Is the audio signal output to pin(2/L-ch) pin(3/R-ch) of
headphone terminal J1003?
NO
Is the audio signal input into pin (3) and (1) of connector
SC1001 from pin(3/L-ch),(1/R-ch) of connector P1001?
NO
Is HP-MUTE-LINE [pin(40) of IC2302(SUB_MICON)] at
H?
NO
Is audio signal sent to pins (26/L-ch) and (25/R-ch) of
IC3001(MAIN_MICON)?
NO
Check IC3001 and its peripheral circuits.
YES
YES
YES
YES
Check HEAD-PHONE (J1003) or peripheral circuits.
Check the line between P1001 and J1003.
(SC1001/P1001, etc.)
Check the peripheral circuits of IC2302 and HP-MUTE_LINE.
(Q1001, etc.)
Check the line between P1001 and IC3001.
(IC1102, etc.)
4 – 8
No picture on the display (1)
The picture doesn't appear in all modes.
LC32D44E/S/RU-BK/GY (1st Eddition)
Is the LVDS signal output from IC3001
(MAIN_MICON)?
LVDS0_P/N(140/141), LVDS1_P/N(137/138),
LVDS2_P/N(134/135), LVDS3_P/N(128/129),
LVDS4_P/N(125/126), LVDS_CP/CN(131/132).
YES
Is the LVDS signal input to IC8103 (LCD_CONTROL)?
A0+/-(165/164), A1+/-(167/166), A2+/-(169/168), A3+/(189/188), A4+/-(191/190), ACK+/-(187/186)
YES
Is the control signal of LCD controller normal?
YES
Is VCC_3.3V, VCC_2.5V or VCC_1.5V supplied to
IC8103?
YES
Are the video signals BR/BG/BB (0_P/M-3_P/M), FR/
FG/FB (0_P/M-3_M/P) and the CLK signals (BCLK_P/
M, FCLK_P/M) output from IC8103?
NO
Check IC3001 and its peripheral control circuits.
NO
NOCheck the control signal R/L_LINE, U/D_OUT_LINE,
NO
NO
Check the line between IC3001 and IC8103.
FRAME_LINE, BANK_SEL_LINE, TEMP1/2/3_LINE,
QS_EN_LINE, etc.
Check if IC8402(MULTI_CHANNEL_SYSTEM_POWER_SUPPLY)
and the peripheral power supply circuit are normal.
Check IC8103 and its peripheral circuits.
YES
Are BR/BG/BB (0_P/M-3_P/M), BCLK (P/M) input to
connector SC8201 and FR/FG/FB (0_P/M-3_P/M),
FCLK (P/M) input to connector SC8202?
YES
Are the gradation signals (VH/VL_247, 191, 159, 63,
31, 0) normally sent from IC8201 (GLAY_LEVEL
_GENERATION) to SC8201/SC8202?
YES
Check the connectors SC8201/SC8202 and LCD panel.
Does not the picture come out when VHF/UHF is received?
Is the video signal(VIN1) output from pin (6) of TUNER
(TU201)?
YES
Is the video signal(VIN1) sent to pins (191) of IC3001
(MAIN_MICON)?
NO
Check the line between IC8103 and SC8201/SC8202.
NOCheck IC8201 and that the communication between its peripheral
No picture on the display (2)
NO
NO
circuits and IC8103 is normal. (Each line of DAC_CLK/DATA/
LATCH)
Check whether I2C is normally accessed between named TU201
and IC3001(MAIN_MICON).
Check the line between TU201 and IC3001.
YES
Refer to “The picture doesn't appear in all modes.”
4 – 9
LC32D44E/S/RU-BK/GY (1st Eddition)
Does not the picture come out when DTV is received?
No picture on the display (3)
Is the voltage of regulation for a TUNER circuit and the
power supply terminal of IC207 (COFDM) supplied?
(Refer to the circuit diagram)
YES
Is IF signal output from pin (16),(17) of TUNER(TU201)
to pin(10),(11) of IC207(COFDM)?
YES
Similarly, is communication control carried out between
pin (8),(9) of TU201, and pin (20),(21)of IC207?
YES
Does X201(27MHz) oscillate?
YES
Is the MPEG data (FESCL, FESDA, FEVALID, FESTROUT) output from IC207 to IC4001?
NO
NO
NO
NO
NO
Each power supply circuit is checked.
Check the tuner, IC207 and their peripheral circuits.
Replace as required.
Check X201 and its peripheral circuits.
Check if the line between IC207 and IC4001 and the control signals
FERROR_LINE and FERESET_LEINE are normal. (IC4402, etc.)
YES
Are the video signals (DTV_R/G/B, DTV_CVBS) output
from PIN(15,16,17), PIN(18) of IC4001?
YES
Are the video signals (DTV_R/G/B, DTV_CVBS) input
to PIN(181,180,179), PIN(184) of IC3001
(MAIN_MICON)?
YES
Refer to “The picture doesn't appear in all modes.”
NO
NO
Check if IC4001, IC4201(SDRAM), IC4251(FLASH_MEMORY) and
IC4202(B+2.5V_REG) are normal.
Check the line between IC4001 and IC3001.
(IC1401, IC1001, Q1031, etc.)
4 – 10
[External input EXT1,EXT2] No picture on the display (4)
Does not the picture of the CVBS signal input to EXT1 go out?
Does not the picture of the CVBS signal input to EXT2 go out?
LC32D44E/S/RU-BK/GY (1st Eddition)
<EXT1>
Is CVBS signal sent to pin (20) of SCART1 (SC1102)?
<EXT2>NOCheck the setting of an external input device that connects of SC1101.
Is CVBS signal sent to pin (20) of SCART2 (SC1101)?
YES
<EXT1>
Is CVBS signal sent to pin (6) of IC1502(SW.)?
<EXT2>
Is CVBS signal sent to pin (4) of IC1502(SW.)?
YES
Is CVBS signal output to pin(190) of
IC3001(MAIN_MICON) from pin(2) of IC1502?
YES
Refer to “The picture doesn't appear in all modes.”
[External input EXT1,EXT2] No picture on the display (5)
Does not the picture of the R/G/B video signal input to EXT1 go out?
Does not the picture of the R/G/B video signal input to EXT2 go out?
<EXT1>
Is RGB1 signal sent to pins (15)/R1, (11)/G1 and (7)/B1
of SCART1(SC1102)?
<EXT2>
Is RGB2 signal sent to pins (15)/R2, (11)/G2 and (7)/B2
of SCART2(SC1101)?
NOCheck the setting of an external input device that connects of SC1102.
NOCheck the line between SC1102 and IC1502
NOCheck the line between SC1101 and IC1502.
NOCheck the line between IC1502 and IC3001.
(SCART12_LINE, etc.)
NO
Check the setting of an external input device that connects of SC1102.
NO
Check the setting of an external input device that connects of SC1101.
YES
<EXT1>
Is RGB1 signal sent to pins (187)/R1, (175)/G1 and
(182)/B1 of IC3001(MAIN_MICON)?
<EXT2>
Is RGB2 signal sent to pins (178)/R2, (177)/G2 and
(176)/B2 of IC3001(MAIN_MICON)?
YES
Refer to “The picture doesn’t appear in all modes.”
NO
Check the line between SC1102 and IC3001.
NO
Check the line between SC1101 and IC3001.
4 – 11
LC32D44E/S/RU-BK/GY (1st Eddition)
[External input EXT1,EXT2] No picture on the display (6)
Does not the picture of the Y/C video signal input to EXT1 go out?
Does not the picture of the Y/C video signal input to EXT2 go out?
<EXT1>
Is Y/C video signal sent to pins (20)/Y and (15)/C of
SCART1 (SC1102)?
<EXT2>
Is Y/C video signal sent to pins (20)/Y and (15)/C of
SCART2 (SC1101)?
YES
<EXT1>
Is Y/C signal sent to pins (190)/Y, (187)/C of
IC3001(MAIN_MICON)?
<EXT2>
Is Y/C signal sent to pins (190)/Y, (178)/C of
IC3001(MAIN_MICON)?
YES
Refer to “The picture doesn’t appear in all modes.”
<When EXT3 is used for external input> No picture on the display (7)
Does not the picture of the composite video signal input to EXT3 go out?
NOCheck the setting of an external input device that connects of SC1102.
NOCheck the setting of an external input device that connects of SC1101.
NOCheck the line between SC1102 and IC3001.
NOCheck the line between SC1101 and IC3001
.(IC502, SCART12_LINE, etc.)
.(IC502, SCART12_LINE, etc.)
Is CVBS signal output from pin(6) in input terminal
J1002 to pin(10) of connector SC1001?
YES
Is the CVBS signal input from pin(10) of connector
P1001 to pin(1) of IC1001(VIDEO SELECTOR)?
YES
Is CVBS signal output to pin(184) of
IC3001(MAIN_MICON) from pin(7) of IC1001?
YES
Refer to (The picture doesn't appear in all modes.)
NOCheck the line between J1002 and SC1001.
NOCheck the line between P1001 and IC1001.
(Connector SC1001/P1001, etc.)
NOCheck the line between IC1001 and IC3001.
(SV1JSW_LINE, EXT_DTV_LINE, etc.)
4 – 12
<When EXT3 is used for external input> No picture on the display (8)
Does not the picture of the Y/C video signal input to EXT3 go out?
LC32D44E/S/RU-BK/GY (1st Eddition)
Is Y/C signal input into pin(14), (12) of connector
SC1001 from pin(3)/Y, (4)/C of J1001?
YES
Is Y/C signal output from pin(14)/Y,(12)/C of connector
P1001 ?
YES
Is the Y/C video signal detection function SV1JSW signal from pin (6) of the input terminal J1001 normal?
YES
Is the SV1JSW signal input to pin(2) of IC1001
(VIDEO_SELECTOR) and pin(27) of IC2302
(SUB_MICON)?
YES
Is Y/C signal sent to pins (184), (183) of
IC3001(MAIN_MICON)?
NOCheck the line between J1001 and SC1001.
NOCheck the connector SC1001/P1001.
NOCheck J1001 or peripheral circuits.
NOCheck the between SV1JSW_LINE J1001 and IC1001/IC2302. (Con-
nector SC1001/P1001, etc.)
NOCheck the line between P1001 and IC3001.
(IC1001, EXT_DTV_LINE etc.)
YES
Refer to “The picture doesn't appear in all modes.”
<When EXT4 is used for external input> No picture on the display (9)
Does not the picture of the DVI(ANALOG) video signal input to EXT4(15pin-D-SUB terminal) go out?
YES
Are the video signal and the synchronized signal input
from pin(1, 2, 3)/(R, G, B), (13 and 14)/(V, H) of input
terminal D-SUB (SC1201)?
YES
Is EDID data pin (6)/SCL, pin(5)/SDA of IC1201
(EEPROM) accessed, and is it read from pin (15),(12)
of a DVI terminal(SC1201)?
YES
Are the video signal and the synchronized signal input
from pin(174, 173, 172)/(R, G, B), pin(171, 47)/(H, V) of
IC3001(MAIN_MICON)?
NOCheck the connection and setup with the external DVI devices.
NOIs access possible in the re-writing or exchange of EDID data of
IC1201?
Check the circumference circuit of SC1201, IC1201.
NOCheck the line between SC1201 and IC3001.
(IC1941,etc)
NO
YES
Refer to “The picture doesn't appear in all modes.”
4 – 13
LC32D44E/S/RU-BK/GY (1st Eddition)
<When EXT5 is used for external input> No picture on the display (10)
Does not the picture of the component video signal input to EXT5 go out?
Is COMPONENT video signal input into pin(3)/Y, (5)/Pb,
(7)/Pr of the input terminal J1401?
YES
Is COMPONENT video signal input into pin(1)/Y, (6)/Pb,
(9)/Pr of IC1401(VIDEO_BUFFER)?
YES
Is COMPONENT signal output into pin(180), (179),
(181) of IC3001(MAIN_MICON) from pin(20)/Y, (18)/PB,
(16)/PR of IC1401?
YES
Refer to “The picture doesn't appear in all modes”
NOCheck the connection of J1401 and the external input device.
NOCheck the line between J1401 and IC1401.
NOCheck the line between IC1401 and IC3001.
4 – 14
<When EXT6/7 is used for external input> No picture on the display (11)
Does not the picture of the HDMI signal input to EXT6/7 go out?
EXT6EXT6
Is the HDMI detection function output from pin (19) of
the HDMI terminal (SC1901) normal?
EXT7EXT7
Is the HDMI detection function output from pin (19) of
the HDMI terminal (SC1921) normal?
YES
EXT6NO
Is EDID data pin (6)/SCL, pin(5)/SDA of
IC1902(EEPROM) accessed, and is it read from pin
(15),(16) of a HDMI terminal(SC1901)?
EXT7
Is EDID data pin (6)/SCL, pin(5)/SDA of
IC1922(EEPROM) accessed, and is it read from pin
(15),(16) of a HDMI terminal(SC1921)?
NO
NO
Check between SC1901and IC3001(MAIN_MICON) of pin(205).
(Q1905, etc.)
Check between SC1921 and IC3001(MAIN_MICON) of pin(203).
(Q1925, etc.)
Check the connection and setup with the external HDMI devices.
Is access possible in the re-writing or exchange of EDID data of
IC1902?
Check the circumference circuit of SC1901, IC1902 and
IC1951(HDMI_RECEIVER).
Is access possible in the re-writing or exchange of EDID data of
IC1922?
LC32D44E/S/RU-BK/GY (1st Eddition)
NO
NO
Check the circumference circuit of SC1921, IC1922 and
IC1951(HDMI_RECEIVER).
YES
EXT6
Is TMDS signal input into pin(59,58)/TMDS2_CLKP/N,
(63,62)/TMDS2_D0P/N, (67,66)/TMDS2_D1P/N,
(71,70)/TMDS2_D2P/N of IC1951 from SC1901?
EXT7
Is TMDS signal input into pin(40,39)/TMDS1_CLKP/N,
(44,43)/TMDS1_D0P/N, (48,47)/TMDS1_D1P/N,
(52,51)/TMDS1_D2P/N of IC1951 from SC1921?
YES
Is each signal output from DINR[0:7], DING[0:7],
DINB[0:7], pin(2,3)/HDMI_H/V, (1)/DINEN, (121)/
DINCK, of IC1951?
YES
Is each signal of DINR[0:7], DING[0:7], DINB[0:7], pin(171,47)/HDMI_H/V, (48)/DINEN, (49)/DINCK of IC3001(MAIN_MICON) input?
YESNO
Refer to “The picture doesn't appear in all modes.”
NO
NO
NO
Check the line between SC1901 and IC1951.
Check the line between SC1921 and IC1951.
Is the control signal of IC1951 and IC3001 (MAIN_MICON) normal?
(HDMI_RST, IC1941, etc.)
Check the line between IC1951 and IC3001.
(IC1941, etc.)
4 – 15
LC32D44E/S/RU-BK/GY (1st Eddition)
<During external connection> No picture on the monitor (1)
SCART1:
No picture appears on EXT1 - connected monitor during the tuner (U/V) reception.
Checklist:
1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device?... Set it to ”CVBS”, ”Y/C” or “RGB”.
2) Is ANT-CABLE disconnected or connected improperly? ... Connect it correctly as per the operation manual.
3) The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS or Y/C of EXT1-3.
When sent by component, etc., that signal is not sent to the monitor.
4) When the monitor picture is not sent and is not displayed on the monitor, refer to “No picture” for each terminal.
5) The video output from EXT1 is not the monitor output (output of the picture now watching).
The picture of the last selected TV channel is always sent to EXT1. (Specification)
Is CVBS signal output into pin(19) of SC1102(SCART1)
from pin(2) of IC1102(SW)?
NO
Is CVBS signal output from PIN(195) of
IC3001(MAIN_MICON) to PIN(6) of IC1102?
NO
Is video signal (CVBS) sent to pin (195) of IC3001?YESCheck power supply of IC3001 and peripheral circuits.
NO
Is VIN1 signal output from pin(6) of TUNRE(TU201)?YESCheck the line between TU201 and IC3001.
NO
Check whether I2C is normally accessed between
TU201 and IC3001.
YESCheck the setting of an external input device that connects of SC1102.
YESCheck the line between IC1102 and SC1102.
4 – 16
LC32D44E/S/RU-BK/GY (1st Eddition)
<During external connection> No picture on the monitor (2)
SCART1:
No picture appears on EXT1 - connected monitor during the tuner (DTV) reception.
Checklist:
1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ... Set it to “CVBS”, “Y/C” or “RGB”.
2) Is ANT-CABLE disconnected or connected improperly? ... Connect it correctly as per the operation manual.
3) The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS or Y/C of EXT1-3.
When sent by component, etc., that signal is not sent to the monitor.
4) When the monitor picture is not sent and is not displayed on the monitor, refer to “No picture” for each terminal.
5) The video output from EXT1 is not the monitor output (output of the picture now watching).
The picture of the last selected TV channel is always sent to EXT1. (Specification)
Is DTV_CVBS signal output from pin(2) of IC1102(SW)
to pin(19) of SC1102(SCART1)?
NO
Is DTV_CVBS signal output from PIN(195) of
IC3001(MAIN_MICON) to PIN(6) of IC1102?
NO
Is video signal (DTV_CVBS) sent to pin (184) of
IC3001?
NO
Is DTV_CVBS signal output from PIN(18) of
IC4001(SET-TOP_BOX_DECODER)?
NO
Check the IC4001 and its peripheral circuits.
YESCheck the setting of an external input device that connects of SC1102.
YESCheck the line between IC1102 and SC1102.
YESCheck power supply of IC3001 and peripheral circuits.
YESCheck the line between IC4001 and IC3001.
(IC1001, EXT_DTV_LINE, etc.)
4 – 17
LC32D44E/S/RU-BK/GY (1st Eddition)
<During external connection> No picture on the monitor (3)
SCART2:
No picture from EXT1 appears on EXT2-connected monitor.
NOTE: Normally, if the screen during display is sent to EXT2, no picture is sent to EXT2.
Checklist:
1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ... Set it to “CVBS”, “Y/C” or “RGB”.
2) The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS or Y/C of EXT1-3.
3) When the monitor picture is not sent and is not displayed on the monitor, refer to “No picture” for each terminal.
When sent by component, etc., that signal is not sent to the monitor.
4) The video output from EXT1 is not the monitor output (output of the picture now watching).
The picture of the last selected TV channel is always sent to EXT1. (Specification)
Is CVBS signal output into pin(19) of SC1101(SCART2)
from pin(2) of IC1101(SW)?
NO
Is CVBS signal output into pin(194) of
IC3001(MAIN_MICON) from pin(6) of IC1101?
NO
Is video signal (VIN2) from EXT1 sent to pin (190) of
IC3001 (MAIN_MICON)?
NO
Is CVBS signal sent to pin (20) of SCART1(SC1102)?YESCheck the line between SC1102 and IC3001.
NO
Check the setting of an external input device that connects of SC1102.
YESCheck the setting of an external input device that connects of SC1101.
YESCheck the line between IC1101 and SC1101.
YESCheck power supply of IC3001 and peripheral circuits.
(IC1502, SCART12_LINE, etc.)
4 – 18
LC32D44E/S/RU-BK/GY (1st Eddition)
<During external connection> No picture on the monitor (4)
SCART2:
No picture from EXT3 appears on EXT2- connected monitor.
Checklist:
1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ... Set it to “CVBS”, “Y/C” or “RGB”.
2) The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS or Y/C of EXT1-3.
When sent by component, etc., that signal is not sent to the monitor.
3) When the monitor picture is not sent and is not displayed on the monitor, refer to “No picture” for each terminal.
4) The video output from EXT1 is not the monitor output (output of the picture now watching).
The picture of the last selected TV channel is always sent to EXT1. (Specification)
Is CVBS signal output into pin(19) of SC1101(SCART2)
from pin(2) of IC1101(SW)?
NO
Is CVBS signal output into pin(194) of
IC3001(MAIN_MICON) from pin(6) of IC1101?
NO
Is CVBS signal output into pin(194) of IC3001 from
pin(6) of IC1101(VIDEO_SELECTOR)?
NO
Is CVBS signal output into PIN(1) of IC1001 from
PIN(10) of connector P1001?
NO
Check the setting of an external input device that con-
nects of SC1102.
YESCheck the setting of an external input device that connects of SC1101.
YESCheck the line between IC1101 and SC1101.
YESCheck power supply of IC3001 (MAIN_MICON) and peripheral circuits.
YESCheck IC1001 and its peripheral circuits.
(SV1JSW_LINE, EXTDTV_LINE)
MINI_AV_UNIT:NO
Is the video signal output into PIN(10) of connector
SC1001 from PIN(6) of input terminal J1002?
NO
Check the setting of an external input device that connects of J1002.
YESCheck the connector SC1001/P1001.
4 – 19
LC32D44E/S/RU-BK/GY (1st Eddition)
LC32D44E-BK
CHAPTER 5. MAJOR IC INFORMATIONS
Service Manual
[1] MAJOR IC INFORMATIONS
1. IC207 (RH-iXB964WJZZQ)
The STv0362 is a single-chip demodulator using COFDM (coded orthogonal frequency division Multiplexing) and is intended for digital terrestrial
receivers using compressed video, sound and data services. It converts IF or base band differential signals to MPEG-2 format by processing OFDM
carriers.
The STv0362 is fully compliant with the DVB-T specification (ETS 300 744) and Nor Dig Unified specification.
Pin No.Pin NameI/OPin Function
Clock and resets
32NOT_RESETIHardware reset, active low
15XTAL_IIAnalog Crystal oscillator input/external clock (2.5 V)
14XTAL_OOAnalog Crystal oscillator output
13VDDA_2V5---Supply Analog oscillator supply (2.5 V)
16VDDA_2V5---Supply Analog PLL supply (2.5 V)
Analog interface
1RF_LEVEL---ADC 8 input for RF level monitoring
2VDDA_2V5---Analog ADC 8 supply (2.5 V)
3QP---Positive Q analog input for baseband configuration
4QM---Negative Q analog input for baseband configuration
5VDDA_ISO---Analog ISO nwell polarization (2.5 V)
6VDDA_2V5---Analog ADC 12 supply (2.5 V)
7REFP---Internal positive reference
8REFM---Internal negative reference
9INCM---Internal common mode
10IM---Negative I analog input for IF and baseband configuration
11IP---Positive I analog input for IF and baseband configuration
12VDDA_1.0---Analog supply (1.0 V)
I2C interface
29SDAI/OSerial data (open drain)
30SCLISerial clock (open drain)
21SDATI/OSDA tuner (open drain)
20SCLTISCL tuner
MPEG interface
43D7OSerial MPEG data or parallel MPEG data (bit 7)
42D6OParallel MPEG data (bit 6)
40D5OParallel MPEG data (bit 5)
39D4OParallel MPEG data (bit 4)
37D3OParallel MPEG data (bit 3)
36D2OParallel MPEG data (bit 2)
35D1OParallel MPEG data (bit 1)
33D0OParallel MPEG data (bit 0)
44CLK_OUTOMPEG byte or bit clock
46STR_OUTOMPEG first byte sync
47D/NOT_POMPEG data valid/parity
48ERROROMPEG packet error
Front end controls
18AGC_RFI/ORF AGC control (5 V tolerant)
17AGC_IFI/O
64TESTI/OReserved test mode, must be grounded.
27GPIO0I/OGeneral-purpose input/output port 0. Reserved test mode, must be grounded.
49GPIO1I/OGeneral-purpose input/output port 1
60GPIO2I/OGeneral-purpose input/output port 2 or lock indicator
59GPIO3I/OGeneral-purpose input/output port 3 or lock indicator
58GPIO4I/OGeneral-purpose input/output port 4
57GPIO5I/OGeneral-purpose input/output port 5
IF AGC control (5 V tolerant)
54GPIO6I/OGeneral-purpose input/output port 6
53GPIO7I/OGeneral-purpose input/output port 7
52GPIO8I/OGeneral-purpose input/output port 8. Reserved test mode, must be grounded.
61GPIO9I/OGeneral-purpose input/output port 9
23AUX_CLKI/OAuxiliary clock
25CS0IChip select LSB
The NJM2750 is a 4-input/1-output stereo audio selector. It contains a switch operational amplifier and shows lower noise, lower distortion and higher
channel separation than an ordinary multiplexer or analog switch.
The SM5309A is a 3ch video buffer with a built-in 5th-order low pass filter. The cutoff frequency of the low pass filter can be adjusted between 4MHz
and 40MHz in 256 steps. The low pass filter supports analog inputs/outputs of video signal device of 480i to 1080i format. When it is used as an input
system, it functions as an antialiasing filter of the rear-stage ADC system. If used as an output system, aliasing noise from the video DAC or exogenous noise is eliminated, and the terminating resistance of up to 300Ω can be driven. The cutoff frequency or signal input method can be controlled by
I2C-BUS.
Description:
• Supply voltage: Analog: 4.75 - 5.25V
Digital: 3.0 - 5.5V
• Low pass filter function where cutoff frequency can be adjusted in 256 steps
Cutoff frequency range: 4MHz - 40MHz (RISET = 1.8kΩ)
• Filter bypath mode function supporting the resolution of SXGA
• Switchable to the half fc mode suitable for the component signal (CH-2, CH-3)
• 2-input multiplexer function (switchable by the I2C-BUS or MUXSEL terminal)
• For the video input terminal, the sync-tip clamp/bias/direct input can be selected per channel.
• Possible to drive the terminating resistance of up to 300Ω
• Output gain: 0dB
• Power down function
– Consumption current at power down: 1mA or less
• Control by I2C-BUS interface
– Transfer rate: First mode (400kbit/s) supported
Pin No.Pin NameI/OPin Function
1IN1AIVideo signal input terminal (CH-1, A input)
2IN1BIVideo signal input terminal (CH-1, B input)
3GND---Ground.
4ISET---Resister (RISET) connection terminal for internal current setting.
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LC32D44E/S/RU-BK/GY (1st Eddition)
Pin No.Pin NameI/OPin Function
5NC---No connection.
6IN2AIVideo signal input terminal (CH-2, A input)
7IN2BIVideo signal input terminal (CH-2, B input)
8VCC---Analog power supply.
9IN3AIVideo signal input terminal (CH-3, A input)
10IN3BIVideo signal input terminal (CH-3, B input)
11MUXSELIInput multiplexer select terminal.
12SCLII2C clock signal input.
13SDAI/OI2C data signal in-output.
14VDD---Digital power supply.
15GND---Ground.
16OUT3OVideo signal output terminal (CH-3)
17VCC---Analog power supply.
18OUT2OVideo signal output terminal (CH-2)
19GND---Ground.
20OUT1OVideo signal output terminal (CH-1)
21VCC---Analog power supply.
22REF2OInternal reference voltage 2.
23REF1OInternal reference voltage 1.
24ADSII2C slave address setting terminal (3 states).
4. IC1501 (VHIISL83220-1Y)
+/-15kV ESD Protected, +3V to +5.5V, 1Microamp, 250kbps, RS-232 Transmitters/Receivers.
The ISL83220E is a 3.0V to 5.5V powered RS-232 transmitter/ receiver which meets ElA/TIA-232 and V.28/ V.24 specifications, even at VCC = 3.0V.
Additionally, it provides 15kV ESD protection (IEC 1000-4-2 Air Gap and Human Body Model) on transmitter outputs and receiver inputs (RS-232
pins). Targeted applications are PDAs, Palmtops, and notebook and laptop computers where the low operational, and even lower standby, power
consumption is critical. Efficient on-chip charge pumps, coupled with a manual power down function, reduce the standby supply current to a 1 A
trickle. Small footprint packaging, and the use of small, low value capacitors ensure board space savings as well. Data rates greater than 250kbps are
guaranteed at worst case load conditions. This family is fully compatible with 3.3V only systems, mixed 3.3V and 5.0V systems, and 5.0V only systems.
Pin No.Pin NameI/OPin Function
1ENIActive low receiver enable control; doesn't disable ROUTB outputs.
2C1+---External capacitor (voltage doubler) is connected to this lead.
3V+---Internally generated positive transmitter supply.
4C1----External capacitor (voltage doubler) is connected to this lead.
5C2+---External capacitor (voltage inverter) is connected to this lead.
6C2----External capacitor (voltage inverter) is connected to this lead.
7V----Internally generated negative transmitter supply.
8RIN I±15kV ESD Protected, RS-232 compatible receiver inputs.
9ROUTOTTL/CMOS level receiver outputs.
Active low input shuts down transmitters and on-board power supply, to place device in low power
mode.
5 – 3
LC32D44E/S/RU-BK/GY (1st Eddition)
5. IC1702/1735/1745 (VHILV5805M+-1Y)
Step-down DC-DC converter
This is a 1ch step-down switching regulator. It incorporates 0.2ΩFET on the upper side and realizes high-efficiency operation for large output current.
Since the current mode control method is adopted, good load current response and easy phase compensation are available.
The standby mode can be entered using the ON/OFF terminal. The load device is protected by the pulse-by-pulse or current protection and overheat
protection function. Soft start becomes possible by applying capacitance to the soft start terminal.
Pin No.Pin NameI/OPin Function
1BOOT---Upper part MOS transistor boot strap capacity connection terminal.
2VINIPower voltage supply terminal.
3SWOPower Switch terminal.
4GND---Ground.
5FBIFeedback terminal.
6COMP---Phase amends terminal.
7ENIEnable terminal.
8SSISoft start terminal.
6. IC1951 (VHiSii9025+-1Q)
The Sii9025 is a compliant with the latest HDMI 1.2 (High Definition Multimedia Interface) specification.
Backward compatibility with DVI 1.0 allows HDMI systems to connect to existing DVI 1.0 hosts.
The SiI9025 is capable of receiving and outputting two channel digital audio at up to 192 kHz- an excellent solution for Digital TVs.
An S/PDIF port supports up to 192 kHz audio.
The SiI9025 also comes pre-programmed with HDCP keys, greatly simplifying the manufacturing process, while providing the highest level of HDCP
key security.
Description:
• Dual-Input HDMI 1.2, HDCP 1.1 and DVI 1.0 compliant receiver.
• Integrated TMDSR core.
• Digital video interface supports video processors:
Color Space Conversion for both RGB-to-YCbCr and YCbCr-to-RGB (both 601 and 709)
Auto video mode configuration simplifies system firmware design.
• Digital audio interface supports high-end audio systems:
One programmable I2S output for connection to low-cost DACs at 32-192kHz.
S/PDIF output supports PCM, Dolby Digital, DTS digital audio transmission (32-192kHz Fs) using IEC60958 and IEC61937.
Auto audio error detection with programmable soft mute.
• Integrated HDCP decryption engine for receiving protected audio and video content.
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LC32D44E/S/RU-BK/GY (1st Eddition)
• HDCP Built in Self Test (BIST) lowers cost to test HDCP operation.
• Pre-programmed HDCP keys provide highest level of key security, simplifies manufacturing.
Pin No.Pin NameI/OPin Function
Digital Video Output Pins.
144, 143, 142, 141, 140, 137, 136, 133, 132, 131,
130, 129, 126, 125, 124, 123, 119, 118, 117, 116,
113, 112, 111, 110
1DEOData enable.
2HSYNCOHorizontal Sync Output control signal.
3VSYNCOVertical Sync Output control signal.
121ODCKOOutput Data Clock.
Digital Audio Output Pins.
97XTALINICrystal Clock Input.
96XTALOUTOCrystal Clock Output.
88MCLKOUTOAudio Master Clock Output.
86SCKOI2S Serial Clock Output.
85WSOI2S Word Select Output.
84SD0OI2S Serial Data Output.
78SPDIFOS/PDIF Audio Output.
77MUTEOUTOMute Audio Output.
Configuration/Programming Pins.
104INTOInterrupt Output.
102RESET#IReset Pin. Active LOW. 5V Tolerant.
32DSCL0IDDCI2C Clock for Port 0. 5V Tolerant.
31DSDA0I/ODDCI2C Data for Port 0. 5V Tolerant.
30DSCL0IDDCI2C Clock for Port 1. 5V Tolerant.
29DSDA1I/ODDCI2C Data for Port 1. 5V Tolerant.
28CSCLIConfiguration I2C Clock. 5V Tolerant.
27CSDAI/OConfiguration I2C Data. 5V Tolerant.
103SCDTOIndicates active video at HDMI input port.
107CLK48BI/OData Bus Latch Enable.
34R0PWR5VIPort 0 Transmitter Detect. 5V Tolerant.
33R1PWR5VIPort 1 Transmitter Detect. 5V Tolerant.
101RSVDLIReserved, must be tied LOW.
High-efficiency digital audio power amplifier IC with maximum power output of 20W (Vddp=14V, RL=4Ω) x 2ch.
It incorporates the “DRC (Dynamic range compression)” function. Since the volume is increased at low volume level and is decreased at high volume
level, it is possible to prevent sudden volume change. It is also provided with the “power limiter” which can set the output limit.
47, 48PVDDPL---Power terminal for digital amplifier output (Lch+).
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LC32D44E/S/RU-BK/GY (1st Eddition)
9. IC3001 (RH-IXC354WJZZQ)
The VCT-Pro front-end video processing unit offers 16 analog video inputs (CVBS/Y/C, RGB/Y Cr Cb) as well as digital interfaces for SDTV and DTV.
Latest 3D+ comb filter generation provides highest performance for PAL/NTSC signals.
A VBI slicer, supporting up to 2000 pages of Teletext completes the analog video front end. 3D-motion-adaptive de-interlacing, temporal noise reduction and film mode detection are based on a unified memory technology.
Description:
• Stereo Decoder Audio Processing.
• Video Front-end 3D Comb filter, PC Connectivity.
11AIN2RIAnalog Audio 2 Input, Right.
12AIN2LIAnalog Audio 2 Input, Left.
13AIN3RIAnalog Audio 3 Input, Right.
14AIN3LIAnalog Audio 3 Input, Left.
15AIN4RIAnalog Audio 4 Input, Right.
16AIN4LIAnalog Audio 4 Input, Left.
17VREFAU---Reference Voltage, Audio.
18VSUP8.0AU---Supply Voltage Analog Audio, 8.0 V.
19GNDA---Ground Analog Audio, Platform Ground.
20SGND---Analog Signal GND.
21AOUT2ROAnalog Audio 2 Output, Right.
22AOUT2LOAnalog Audio 2 Output, Left.
23AOUT1ROAnalog Audio 1 Output, Right.
24AOUT1LOAnalog Audio 1 Output, Left.
25HEADPHONEROAnalog Headphone Output, Right.
26HEADPHONELOAnalog Headphone Output, Left.
27SPEAKERROAnalog Loudspeaker Output, Right.
28SPEAKERLOAnalog Loudspeaker Output, Left.
29SUBWOOFER TESTI/OTP3001
30VREFSIFIReference Voltage, Audio SIF.
31SIFIN+IDifferential Sound IF Input.
32SIFIN-IDifferential Sound IF Input.
33VSUP5.0---Supply Voltage Analog, 5.0 V.
34GNDA---Ground Analog, Platform Ground.
35GND3.3DIG---Ground Digital Interfaces.
36VSUP3.3DIG---Supply Voltage Digital Interfaces, 3.3 V.
37SPDIF_OUTOSPDIF Output.
38I2S_DA_INIAudio Bus Data Input.
39I2S_CLIAudio Bus Clock Input.
40I2S_WSIAudio Bus Word Strobe Input.
41I2S_DEL_OUTOTP3037
42I2S_DEL_INITP3038
43I2S_DEL_CLI/OTP3039
44I2S_DEL_WSI/OTP3040
45VSUP3.3RAM---Supply Voltage Ram, 3.3 V.
46GND3.3RAM---Ground Ram.
47DVSIDigital or Analog Video VSYNC HD Input.
48DENIDigital Video Enable Input.
49DCLKIDigital Video Clock Input.
50DRI7IDigital Video Red 7 Input.
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LC32D44E/S/RU-BK/GY (1st Eddition)
Pin No.Pin NameI/OPin Function
51DRI6IDigital Video Red 6 Input.
52DRI5IDigital Video Red 5 Input.
53DRI4IDigital Video Red 4 Input.
54DRI3IDigital Video Red 3 Input.
55DRI2IDigital Video Red 2 Input.
56DRI1IDigital Video Red 1 Input.
57DRI0IDigital Video Red 0 Input (LSB).
58DGI7IDigital Video Green 7 Input.
59DGI6IDigital Video Green 6 Input.
60DGI5IDigital Video Green 5 Input.
61DGI4IDigital Video Green 4 Input.
62DGI3IDigital Video Green 3 Input.
63DGI2IDigital Video Green 2 Input.
64DGI1IDigital Video Green 1 Input.
65DGI0IDigital Video Green 0 Input (LSB).
66DBI7IDigital Video Blue 7 Input.
67DBI6IDigital Video Blue 6 Input.
68DBI5IDigital Video Blue 5 Input.
69DBI4IDigital Video Blue 4 Input.
70DBI3IDigital Video Blue 3 Input.
71DBI2IDigital Video Blue 2 Input.
72DBI1IDigital Video Blue 1 Input.
73DBI0IDigital Video Blue 0 Input (LSB).
74GND3.3DRI---Ground Digital Ram Interface.
75VSUP3.3DRI---Supply Voltage Digital Ram Interface, 3.3 V.
76GND3.3COM---Ground Common.
77VSUP3.3COM---Supply Voltage Common, 3.3V.
78XTALINIAnalog Crystal Input.
79XTALOUTOAnalog Crystal Output.
80CLKOUTODigital 20MHz Clock Output.
81VSOOTP3059
82HSOOTP3058
83SCLI/OI2C Bus Clock Input/Output.
84SDAI/OI2C Bus Data Input/Output.
85GND3.3FL---Ground Flash.
86VSUP3.3FL---Supply Voltage Flash, 3.3 V.
87CADC5IKEY2 operation key input.
88CADC6IKEY1 operation key input.
89P2_2IIRIN Remote control input.
90P2_3IKEY_PSW Power switch input.
91P2_4OV_TXD RS232C TX
92P2_5IV_RXD RS232C RX
93OSDV DBO2_0I/OTP3042
94OSDH DBO2_1I/OTP3041
95GND3.3IO1---Ground Digital Input/Output Port 1
96VSUP3.3IO1---Supply Voltage Input/Output Port 1, 3.3 V
97OSD_CLKIN.C.
98OSD_FSWIN.C.
99OSDHCS1 P3_6I/OTP3021
119PCS1OTP3033
120PCS0OTP3032
121PCLK2OTP3022
122PCLK1OTP3031
123GND1.8DIG---Ground Digital Core
124VSUP1.8DIG---Supply Voltage Digital Core, 1.8 V.
125LVDSA_4POTP3030
126LVDSA_4NOTP3029
127VSUP3.3LVDS---Supply Digital Voltage LVDS2 Port, 3.3 V.
128LVDSA_3POLVDS Channel 1 bit 3 Positive Output.
129LVDSA_3NOLVDS Channel 1 bit 3 Negative Output.
130GND3.3LVDS---Ground Digital LVDS2, 3.3 V.
131LVDSA_CLKPOLVDS Channel 1 Clock Positive Output.
132LVDSA_CLKNOLVDS Channel 1 Clock Negative Output.
133VSUP3.3LVDS---Supply Digital Voltage LVDS2, 3.3 V.
134LVDSA_2POLVDS Channel 1 bit 2 Positive Output.
135LVDSA_2NOLVDS Channel 1 bit 2 Negative Output.
136GND3.3LVDS---Ground Digital LVDS2, 3.3 V.
137LVDSA_1POLVDS Channel 1 bit 1 Positive Output.
138LVDSA_1NOLVDS Channel 1 bit 1 Negative Output.
139VSUP3.3LVDS---Supply Digital Voltage LVDS2, 3.3 V.
140LVDSA_0POLVDS Channel 1 bit 0 Positive Output.
141LVDSA_0NOLVDS Channel 1 bit 0 Negative Output.
142VSUP1.8LVDS---Supply Analog Voltage LVDS2, 1.8 V.
143REXTOLVDS External Resistor 2.
144GND1.8LVDS---Ground Analog LVDS2, 1.8 V.
145LVDSB_3POTP3028
146LVDSB_3NOTP3027
147GND3.3LVDS---Ground Digital LVDS2, 3.3 V.
148LVDSBCLKPOTP3026
149LVDSBCLKNOTP3025
150VSUP3.3LVDS---Supply Digital Voltage LVDS2, 3.3 V.
151LVDSB_2POTP3024
152LVDSB_2NOTP3023
153GND3.3LVDS---Ground Digital LVDS2, 3.3 V.
154LVDSB_1POTP3013
155LVDSB_1NOTP3012
156VSUP3.3LVDS---Supply Digital Voltage LVDS2, 3.3 V.
157LVDSB_0POTP3010
158LVDSB_0NOTP3011
159CADC4IIF AGC For AGC adjustment.
160CADC3ISLOWSW_1I SLOW SW1 input.
161CADC2ISLOWSW_2I SLOW SW2 input.
162CADC1ITP3009
163GND3.3DAC---Ground DAC.
164VSUP3.3DAC---Supply Voltage DAC, 3.3V.
165PWM3OST_RS
166PWM2OBL_ON Back-light on.
167PWM1OOFL1 Modulated light signal.
168REVOTP3005
169VSUP1.8FE---Supply Voltage Analog Video Frontend, 1.8 V.
170VSUP3.3FE---Supply Voltage Analog Video Frontend, 3.3 V.
171DHSIDigital Video H-Sync Input.
172VIN21IAnalog Video 21 B HD Input.
173VIN20IAnalog Video 20 G HD Input.
174VIN19IAnalog Video 19 R HD Input.
175VIN18IAnalog Video 18 Fast Blank 2 Input.
176VIN17IAnalog Video 17 B HD Input.
177VIN16IAnalog Video 16 G HD Input.
178VIN15IAnalog Video 15 R HD Input.
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Pin No.Pin NameI/OPin Function
179VIN13IAnalog Video 13 B HD Input.
180VIN12IAnalog Video 12 G HD Input.
181VIN11IAnalog Video 11 R HD Input.
182VIN9IAnalog Video 9 Y or B SD Input.
183VIN8IAnalog Video 8 C or Fast Blank 1 Input.
184VIN7IAnalog Video 7 Y or G SD Input.
185VSUP1.8FE---Supply Voltage Analog Video Frontend, 1.8 V.
186GNDA---Analog Video Frontend, Platform Ground.
187VIN6IAnalog Video 6 C or R SD Input.
188VIN5IAnalog Video 5 Y/CVBS Input.
189VIN3IAnalog Video 3 CVBS Input.
190VIN2IAnalog Video 2 CVBS Input.
191VIN1IAnalog Video 1 CVBS Input.
192VSUP3.3VO---Supply Voltage Analog Video Output, 3.3 V.
193VOUT3OTP3002
194VOUT2OAnalog CVBS Video 2 Output.
195VOUT1OAnalog CVBS Video 1 Output.
196GND3.3IO3---Ground Digital Input/Output Port 1.
197VSUP3.3IO3---Supply Voltage Input/Output Port 1, 3.3 V.
198656I0 P3_0IDTM_IRQI Interrupt from DTV.
199656I1 P3_1I/OAVLINK_1
200656I2 P3_2I/OAVLINK_2
201656I3 P3_3I/OHDMI_INT_I Interrupt from receiver.
202656I4 P3_4I/OHDMI_INT_I Interrupt from receiver.
203656I5 P3_5OHOTP_CONT0 HDMI plug detection.
204656I6 P3_6IMIC_IREQ Interrupt from microcomputer.
205656I7 P3_7OHOTP_CONT1 HDMI plug detection.
206656CLKIIN.C.
207656CLKOON.C.
208P4_7IHP_PLG Headphone detection.
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LC32D44E/S/RU-BK/GY (1st Eddition)
10. IC4001 (RH-IXC243WJZZQ)
This is a video/ audio signal processing IC (Set-top-box decoder) for digital tuner, incorporates a CPU. In this equipment, it implements GUI processing and video/audio processing for digital tuner, negotiation processing with CI-CARD, etc.
Pin No.Pin NameI/OPin Function
System pins
138CLK27INI27 MHz crystal circuit.
139CLK27OUTO27 MHz crystal circuit.
128AUXCLKOUTOAuxiliary clock for general use.
130NOT_RESETISystem reset.
131NOT_RSTOUTOReset out.
134TDIITAP boundary scan test data input.
133TMSITAP boundary scan test mode select.
137TCKITAP boundary scan test clock.
135NOT_TRSTITAP boundary scan test logic reset.
132TDOOTAP boundary scan test data output.
DCU pins
1DCUTRIGGERINIExternal trigger input to DCU.
2DCUTRIGGEROUTOSignal to trigger external debug circuitry.
Analog power supply pins (Audio DAC)
32VDDAADAC---3.3v power for audio DAC.
31GNDAADAC---Ground for audio DAC.
30VSSUBANA---Substrate ground for all DACs.
Analog power supply pins (Video DAC)
22VDDDAC0---3.3 V power supply for video DAC 1, 2 and 3.
21VDDDAC1---3.3 V power supply for CVBS video DAC 4.
19VSSDAC0---Ground for video DAC 1, 2 and 3.
20VSSDAC1---Ground for video DAC 4.
Analog power supply pins (Frequency synthesizers)
140VDDDFS1---Frequency synthesizer 1.2 V digital power dedicated to frequency synthesizer 1.
141GNDDFS1---Frequency synthesizer 1.2 V digital ground dedicated to frequency synthesizer 1.
142VCCAFS---Frequency synthesizer 1.2 V analog power shared between frequency synthesizer
143GNDAFS---Frequency synthesizer 1.2 V analog ground shared between frequency synthe-
144GNDDFS2---Frequency synthesizer 1.2 V digital ground dedicated to frequency synthesizer 2.
145VDDDFS2---Frequency synthesizer 1.2 V digital power dedicated to frequency synthesizer 2.
Analog power supply pins (PLLs)
146VCCAPLL---1.2V PLL1 analog power.
147GNDAPLL---1.2V PLL1 analog ground.
148GNDAPLL1---1.2V PLL2 analog ground.
149VCCAPLL1---1.2V PLL2 analog power.
Analog power supply pins (LMI SDRAM)
1 and 2.
sizer 1 and 2.
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LC32D44E/S/RU-BK/GY (1st Eddition)
Pin No.Pin NameI/OPin Function
184VDDDLL---1.2 V for DLL.
185GNDDLL---Ground for DLL.
176VDDDE0---1.2 V for delay element 1.
177VSSDE0---Ground for delay element 1.
196VDDDE1---1.2 V for delay element 2.
195VSSDE1---Ground for delay element 2.
Digital power supply pins
8, 47, 67, 101, 124, 155, 173,
204
151, 158, 165, 170, 179, 187,
193, 200, 207, 212
3, 42, 55, 72, 84, 96, 113, 129 VDD33---3.3 V power supply.
EP1, 9, 27, 48, 54, 68, 102,
112, 125, 136, 156, 161, 172,
189, 205
11. IC4201 (RH-IXB765WJQZQ)
This IC is 256Mb H-die DDR SDRAM (static dynamic random-access memory) IC.
In this equipment, it is used for LMI memory (for image processing), and data is used for operation of the Set-top-box decoder.
Pin No.Pin NameI/OPin Function
45, 46CK, CKIClock : CK and CK are differential clock inputs.
44CKEI
24CSI
23-21RAS, CAS, WEI
20, 47LDM, (UDM)IInput Data Mask.
26, 27BA0, BA1IBank Addres Inputs.
29, 30, 31, 32, 35, 36, 37, 38, 39, 40,
28, 41, 42
2, 4, 5, 7, 8, 10, 11, 13, 54, 56, 57,
59, 60, 62, 63, 65
16, 51LDQS, (U)DQSI/OData Strobe : Output with read data, input with write data.
14, 17, 19, 25, 43, 50, 53NC---No Connect : No internal electrical connection is present.
3, 9, 15, 55, 61VDDQ---DQ Power Supply.
6, 12, 52, 58, 64VSSQ---DQ Ground.
1, 18, 33VDD---Power Supply.
34, 48, 66VSS---Ground.
49VREFISSTL_2 reference voltage.
VDD12---1.2 V digital power supply.
VDD25---2.5 V power supply when connected to DDR SDRAM on the LMI interface.
GND---Ground.
Clock Enable : CKE HIGH activates, and CKE LOW deactivates internal clock
signals, and device input buffers and output drivers.
Chip Select : CS enables (registered LOW) and disables (registered HIGH) the
command decoder.
Command Inputs : RAS, CAS and WE (along with CS) define the command
beingentered.
A [0:12]IAddress Inputs.
DQ[0:15]I/OData Input/Output : Data bus.
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LC32D44E/S/RU-BK/GY (1st Eddition)
12. IC4251 (RH-IXC361WJZZQ)
This IC is a high performance CMOS super technology 16Mbit Flash Memory.
Start software (loader) for the CPU with a built-in digital processor and application software have been written on this Flash Memory.
The digital processor reads these soft wares on start-up and implements them.
1OUTOOutput. OUT is the source of the P-channel MOSFET.
2GND---Ground.
3ENIEnable. The P-channel MOSFET turns on when EN is logic HIGH.
4NC---No Connect. This pin is not internally connected.
5GND---Ground.
6INI
Input. IN is the drain of the P-channel MOSFET.
It is the supply input of the IC.
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LC32D44E/S/RU-BK/GY (1st Eddition)
14. IC8103 (VHIT3Z18AFG-1Q)
Single Link LCD Receiver
The LVDS is essentially a signaling method used for high-speed transmission of binary data over copper.
It uses a lower voltage swing than other transmission standards. This low voltage differential is what delivers higher data transmission speeds and
inherently greater bandwidth at lower power consumption.
This new technology not only addresses the needs of today’s high performance data transmission application, but also the needs of future application.
This LVDS receiver IP supports Single Link transmission between Host and Flat Panel Display. The receiver recovers the LVDS data and converts
into CMOS data. An on-chip PLL synchronizes the received clock with the parallel data and then all are transmitted to the parallel output port of the
receiver.
Description:
• Supports Single Link (Single Input to Single Output) up to 135MHz dot clock for SXGA+ (input clock frequency: 25 to 135MHz)
• PLL requires no external components
• Clock strobe edge selectable
• Support 10-bit color
• Power down mode
Pin No.Pin NameI/OFunction NamePin No.Pin NameI/OFunction Name
*Pin No.177, 178 is a power supply for SSCG, Pin No.180, 181 is GND for SSCG, and it is separated with another power supply GND.
15. IC8201 (VHIBD8143MU-1Y)
High-accuracy gradation voltage generation IC with a built-in DAC
The high-accuracy gradation voltage generation IC with a built-in DAC, BD8143MUV, has a built-in 1chip integrating the setting value control by the
serial signal, high-accuracy 10bit DAC and buffer amp.
Description:
• Reduced number of parts due to 1chip
• Built-in 10bit DAC
• DAC output buffer amp (12ch)
• Amplifier input/output switching function (CTL)
• 3-wire serial interface
• Temperature protection circuit
• Power ON reset circuit
Pin No.Pin NameI/OPin Function
1LATCHISeries latch input.
2SDINISeries data input
3CLKISeries clock input
4SDOUTOSeries data output
5DVCC---Logic power supply
6CT---Capacity connection terminal for power ON reset.
7GND---Ground.
8N.C---No Connect.
9OSCODAC tune clock I/O.
10N.C---No Connect.
11CTLIAmplifier input switch signal input.
12N.C---No connection.
13VCC---Buffer amplifier power supply.
14OUT0OGradation voltage output terminal 0.
15OUT1OGradation voltage output terminal 1.
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LC32D44E/S/RU-BK/GY (1st Eddition)
Pin No.Pin NameI/OPin Function
16OUT2OGradation voltage output terminal 2.
17OUT3OGradation voltage output terminal 3.
18OUT4OGradation voltage output terminal 4.
19OUT5OGradation voltage output terminal 5.
20AGND---Buffer amplifier ground.
21AGND---Buffer amplifier ground.
22OUT6OGradation voltage output terminal 6.
23OUT7OGradation voltage output terminal 7.
24OUT8OGradation voltage output terminal 8.
25OUT9OGradation voltage output terminal 9.
26OUT10OGradation voltage output terminal 10.
27OUT11OGradation voltage output terminal 11.
28VCC---Buffer amplifier power supply.
29REFINODAC reference input.
30VDACODAC voltage output.
31DACGND---Ground for DAC.
32N.C---No Connect.
16. IC8202 (VHIBU55041+-1Y)
Nonvolatile VCOM calibrator
• 128-gradation current output possible
• I2C interface adopted
Pin No.Pin NameI/OPin Function
1IOUTO128 Step current output terminal.
2AVDD---Power supply terminal 2.
3WPBI
4VSS---Ground terminal.
5VDD---Power supply terminal 1.
6SDAI/OI2C data in-output terminal.
7SCLII2C clock terminal.
8SET---Maximum current setting terminal.
Rewriting protection terminal. Enable at WPB=L
Rewriting is "H" level (VDD).
17. IC8402 (VHIBD8162EK-1Q)
Multi-channel system power supply IC
• 6-channel output system power supply with a built-in POWER FET
R/C, LED Unit (Side A)R/C, LED Unit (Side B)R/C, LED Unit (Chip Side A)R/C, LED Unit (Chip Side B)
H
C107
G
F
E
D
R101
D101
C102
SLD101
RMC101
P101
D103
R108R109
C
B
A
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[3] MINI AV Unit
MINI AV Unit (Side A)
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D
C
B
A
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[4] KEY
LC32D44E/S/RU-BK/GY (1st Eddition)
J
I
H
G
F
KEY Unit (Side A)KEY Unit
(Chip Parts Side A)
S155
R153
D152
S154
S152
R151
D151
S151
R152
S153
E
R154
D
C
B
A
S156
S157
D155
P151
1
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LC32D44E/S/RU-BK/GY (1st Eddition)
LC32D44E-BK
CHAPTER 8. SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC DIAGRAM
1. VOLTAGE MEASUREMENT CONDITION:
1) The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 120V. Signals are fed by a color bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.
2. INDICATION OF RESISTOR & CAPACITOR:
RESISTOR
1) The unit of resistance "Ω" is omitted.
(K=kΩ=1000Ω, M=MΩ).
2) All resistors are ± 5%, unless otherwise noted.
(K= ± 10%, F= ± 1%, D= ± 0.5%)
3) All resistors are 1/16W, unless otherwise noted.
CAPACITOR
1) All capacitors are µF, unless otherwise noted.
(P=pF=µµF).
2) All capacitors are 50V, unless otherwise noted.
CAUTION:
This circuit diagram is original one, therefore there may be a slight
difference from yours.
Service Manual
SAFETY NOTES:
1) DISCONNECT THE AC PLUG FROM THE AC OUTLET
BEFORE REPLACING PARTS.
2) SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS
OPERATING.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH "" () ARE IMPORTANT
FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO
REPLACE THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE SAFETY AND PERFORMANCE OF THE SET.
AVIS DE SECURITE IMPORTANT:
LES PIECES MARQUEES " " () SONT IMPORTANTES POUR MAINTENIR LA SECURITE DE L'APPAREIL.
NE REMPLACER CES PIEDES QUE PAR DES PIECES DONT LE
NUMERO EST SPECIFIE POUR MAINTENIR LA SECURITE ET
PROTEGER LE BON FONCTIONNEMENT DE L'APPAREIL.
8 – 1
[2] SCHEMATIC DIAGRAM
LC32D44E/S/RU-BK/GY (1st Eddition)
MAIN Unit (1/13)
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AND SHADED COMPONENTS=SAFETY RELATED PARTS
F
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A
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MAIN Unit (2/13)
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MAIN Unit (3/13)
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LC32D44E/S/RU-BK/GY (1st Eddition)
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D
C
B
A
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LC32D44E/S/RU-BK/GY (1st Eddition)
MAIN Unit (4/13)
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MAIN Unit (5/13)
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LC32D44E/S/RU-BK/GY (1st Eddition)
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D
C
B
A
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MAIN Unit (6/13)
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