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LC-37D44E/S/RU-BK/GY
SERVICE MANUAL
No. S88N6LC37D44E
LCD COLOUR TELEVISION
MODELS
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.
LC-37D44E/S/RU-BK/GY
CONTENTS
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRE-
CAUTION ............................................................i
PRECAUTIONS FOR USING LEAD-FREE
SOLDER ............................................................ ii
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS ......................................... 1-1
[2] OPERATION MANUAL .................................. 1-2
[3] DIMENSIONS ................................................ 1-5
CHAPTER 2. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS ................... 2-1
CHAPTER 3. ADJUSTMENT
[1] After replacement of any PWB and/or IC for
repair, note the following. ............................... 3-1
[2] SOFTWARE UPDATING................................ 3-1
[3] Entering and exiting the adjustment pro-
cess mode.................................................... 3-18
[4] Remote controller key operation and de-
scription of display in adjustment process
mode. ........................................................... 3-18
[5] Adjustment process mode menu.................. 3-19
[6] Special features............................................ 3-20
[7] Video signal adjustment procedure.............. 3-21
[8] White Balance Adjustment ........................... 3-22
[9] Adjusting procedure by use of [RS-232C]......3-23
[10] Initialization to factory settings.....................3-24
[11] Lamp error detection ...................................3-24
[12] Public Mode (Hotel Mode) ...........................3-25
CHAPTER 4. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE ......................4-1
CHAPTER 5. BLOCK DIAGRAM/OVERALL WIRING
[1] BLOCK DIAGRAM.........................................5-1
[2] SYSTEM BLOCK DIAGRAM .........................5-3
[3] OVERALL WIRING DIAGRAM ......................5-4
CHAPTER 6. PRINTED WIRING BOARD ASSEMBLIES
[1] MAIN Unit ...................................................... 6-1
[2] R/C, LED Unit ................................................6-5
[3] MINI AV Unit ..................................................6-6
[4] KEY ...............................................................6-7
CHAPTER 7. SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC DIA-
GRAM............................................................7-1
[2] SCHEMATIC DIAGRAM ................................7-2
Parts Guide
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.
LC-37D44E/S/RU-BK/GY
LC37D44E-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 ON TI N U 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.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
TO EXPOSED
METAL PARTS
1.5k ohm
10W
0.15µF
TEST PROBE
CONNECT TO
KNOWN EARTH
GROUND
SAFETY NOTICE
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
LC-37D44E/S/RU-BK/GY
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.
Lead-free wire solder for servicing
PARTS CODE
ZHNDAi123250E BL J φ0.3mm 250g (1roll)
ZHNDAi126500E BK J φ0.6mm 500g (1roll)
ZHNDAi12801KE BM J φ1.0mm 1kg (1roll)
PRICE
RANK
PART
DELIVERY
DESCRIPTION
ii
LC-37D44E/S/RU-BK/GY
LC37D44E-BK
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS
Service Manual
Item
LCD panel
Resolution
Video Colour System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
TV
Function
Brightness 450 cd/m
Viewing angles H : 176° V : 176°
Audio amplifier
Speaker
Terminals Antenna
Power Requirement AC 220–240V, 50 Hz
Power Consumption 146 W (0.9 W Standby) (Method IEC60107)
Weight 14.5 kg (Display only), 17.0 kg (Display with stand)
Operating temperature
TV-Standard Analogue CCIR (B/G, I, D/K, L,L’)
Digital DVB-T (2K/8K OFDM)
Receiving
Channel
TV-Tuning System Auto Preset 999 ch: non-Nordic / 9999 ch: Nordic (ATV: 99 ch), Auto Label, Auto Sort
STEREO/BILINGUAL NICAM/A2
RS-232C 9 pin mini D-sub
EXT 1 SCART (AV input, Y/C input, RGB input, TV output)
EXT 2 SCART (AV input/output, Y/C input, RGB input, AV Link)
EXT 3 S-VIDEO (Y/C input), RCA pin (AV input)
EXT 4 Ø 3.5 mm jack (Audio input), 15 pin mini D-sub (PC)
EXT 5 Audio in, Component in
EXT 6 HDMI, Ø 3.5 mm jack (Audio input)
EXT 7 HDMI
C. I. (Common Interface) EN50221, R206001
OUTPUT RCA pin (Audio)
Headphones Ø 3.5 mm jack (Audio output)
VHF/UHF E2–E69ch, F2–F10ch, I21–I69ch, IR A–IR Jch, (Digital: E5–E69ch)
CATV Hyper-band, S1–S41ch
37" LCD COLOUR TV, Model: LC-37D44E, LC-37D44S, LC-37D44RU
37" Advanced Super View & BLACK TFT LCD
1,049,088 pixels (1,366 x 768)
2
(in Dynamic Mode)
10W x 2
(145 mm x 35 mm) x 2
UHF/VHF 75
0°C to + 40°C
Ω Din type (Analogue & Digital)
• 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.
Part name Part number
Wall mount bracket
(LC-37D44E, LC-37D44S, LC-37D44RU)
1 – 1
AN-37AG5
[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 one of the 4 Nordic countries
(Sweden, Norway, Finland or
Denmark) is selected in the country
setting of Auto Installation, DTV
channels are 4 digits. When another
country is selected, DTV channels
are 3 digits.
4 (Flashback)
Press to return to the previous selected
channel or external input mode.
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.
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)
Using on the remote control unit
DTV mode:
Press to 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
Signal Selectable 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
14 SURROUND
Switch the surround effects on and off.
15 RADIO
DTV: Switch between RADIO and DTV
mode.
16 (Mute)
Switch the sound on and off.
A2 TV broadcasts selection
Signal Selectable items
Stereo
Bilingual
Monaural
STEREO, MONO
CH A, CH B, CH AB
MONO
LC-37D44E/S/RU-BK/GY
17 DTV
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
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 the button.)
18 ( / ) (Volume)
( ) Increase the volume.
( ) Decrease the volume.
19 P ( / )
TV/DTV: Select the channel.
External: Switch to TV or DTV input
mode.
Teletext: Move to the next/previous
page.
20 (INPUT SOURCE)
Select an input source.
(TV, DTV, EXT1, EXT2, EXT3, EXT4,
EXT5, EXT6, EXT7)
21 SLEEP
Set the sleep timer on (in units of 30
min. up to max. 2 hr. 30 min) and off.
22 (Display information)
23 DTV MENU
DTV: Display DTV Menu screen.
24 MENU
Display the MENU screen.
25 OK
Execute a command within the menu
screen.
TV/DTV: Display the programme list.
26 RETURN
Return to the previous menu screen.
27 (Subpage)
28 (Subtitle for Teletext)
TV/External: To turn the subtitles on and
off.
DTV: Display the subtitle selection
screen.
29 Colour (Red/Green/Yellow/Blue)
TELETEXT: Select a page.
DTV: The coloured buttons are used to
select correspondingly to the coloured
items in the menu screen.
1 – 2
LC-37D44E/S/RU-BK/GY
TV (Front view)
TV (Rear view)
( / ) (Volume buttons)
(Programme [channel] buttons)
1
Remote control sensor
P (/)
(Standby/On) indicator
(Power button)
MENU button
(Input Source) button
10
6
7
8
13
2
3
4 5
1 RS-232C terminal
2 EXT 4 (ANALOGUE RGB/AUDIO)
terminals
3 EXT 5 (COMPONENT) terminals
4 EXT 1 (RGB) terminal
5 EXT 2 (RGB) terminal
6 Antenna input terminal
(DVB-T 5V=/80 mA)
NOTE
• Only if you use an active terrestrial antenna, select “On (5V)” under “Supply Voltage”.
9
11
12
7 OUTPUT (AUDIO) terminals
8 EXT 6 (HDMI/AUDIO) terminals
9 EXT 7 (HDMI) terminal
10 COMMON INTERFACE slot
11 EXT 3 terminals
12 Headphone jack
13 AC INPUT terminal
1 – 3
WARNING:
Make sure that the volume is turned
down before using or connecting
earphones and headphones.
Listen to audio at moderate levels.
Excessive sound pressure from
earphones and headphones can
cause hearing loss.
LC-37D44E/S/RU-BK/GY
Troubleshooting
Problem Possible 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 pressed on the remote control unit.
If the indicator on the TV lights up red, press .
• Is the AC cord disconnected?
• Check if you pressed on 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 pressed on 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
LC-37D44E/S/RU-BK/GY
[3] DIMENSIONS
(mm)
637.0
585.0
52.0
824.4
903.8
465.0
200.0
463.8
366.9
89.6
95.3
270.0
100.0
200.0
1 – 5
LC37D44E-BK
CHAPTER 2. REMOVING OF MAJOR PARTS
Service Manual
[1] REMOVING OF MAJOR PARTS
LC-37D44E/S/RU-BK/GY
1. Remove the 4 lock screws and detach the Stand .
2. Remove the PC Card Cover , 1 lock screw , 2 lock screws , 6 lock screws ,4 lock screws , 2 VESA Caps and 2 lock screws
and detach the Rear Cabinet.
1
3
2
4
5
6
7
8
7
Front Cabinet
PC Card Cover
3
6
4
5
9
9
Rear Cabinet
1
Stand
8
2
2 – 1
LC-37D44E/S/RU-BK/GY
3. Disconnect the KM, LB, PD, SP, RA connectors and FFCs.
4. Remove the Speaker (L) , Speaker (R) .
5. Remove the LED PWB Unit .
6. Remove the Control Button .
7. Remove the KEY PWB Unit from Control Button.
8. Remove the 8 lock screws and detach the LCD PANEL from the Front Cabinet.
10
12
13
14
15
11
KEY PWB Unit
14
Control Button
[FFC]
[KM]
[LB]
[PD]
[RA]
[SP]
13
Front Cabinet
15
LCD PANEL
11
SP-R
LED PWB Unit
12
10
SP-L
15
2 – 2
LC-37D44E/S/RU-BK/GY
25
18
24
28
31
26
19
32
28
Power PWB Unit
18
16
20
23
26
29
16
9. Remove the 1 lock screw , 5 lock screws , 2 lock screws and detach the Main Shield .
10.Remove the 2 lock screws and 1 hook and detach the Main PWB Unit .
11.Remove the 2 lock screws and detach the Mini AV PWB Unit and Mini AV Cover .
12.Remove the 2 lock screws and 2 hooks and detach the Power PWB Unit .
13.Remove the 2 lock screws and 4 hooks and detach the Inverter PWB Unit and Barrier Sheet .
17
21 22
27
30
17
27
20
Main Shield
Mini AV Cover
19
Main PWB Unit
25
21
22
23
29
Inverter PWB Unit
31
30
Mini AV PWB Unit
24
32
Barrier Sheet
2 – 3
LC-37D44E/S/RU-BK/GY
34
36
38
40
43
Stand Angle
44
37
33
35
37
39
41
42
Center Angle R
38
14.Remove the 1 lock screw and detach the Bottom Cover .
15.Remove the 4 lock screws and detach the Stand Angle .
16.Remove the 5 lock screws and detach the Center Angle R .
17.Remove the 5 lock screws and detach the Center Angle L .
18.Remove the 4 lock screws , LCD Angle A , LCD Angle B from the LCD Panel Unit .
36
35
LCD Angle B
43
39
Center Angle L
40
LCD Angle A
42
41
LCD Angle A
42
34
Bottom
Cover
33
LCD Angle B
43
4141
LCD Panel Unit
44
41
2 – 4
LC-37D44E/S/RU-BK/GY
46
19.Remove the 14 lock screws and detach the LCD Panel Module Ass’y .
20.Remove the 4 lock screws and detach the 2 GND-PWB from Back Light Chassis Ass’y .
45
47
Back Light Chassis Ass'y
48
49
49
Lamp Holder L
Diffusion Sheet
Lamp Socket
Lamp Unit
Lamp Holder R
48
GNDPWB
47
48
GND-PWB
45
Diffusion Plate
46
LCD Panel Module Ass'y
2 – 5
LC-37D44E/S/RU-BK/GY
LC37D44E-BK
CHAPTER 3. ADJUSTMENT
Service Manual
[1] After replacement of any PWB and/or IC for repair, note the following.
1. When replacing the following units, be sure to prepare the new units loaded with updated software.
MAIN-UNIT: DUNTKE449FM03
• Note that an IC into which ROM data is written is available for MAIN-UNIT servicing (see below)
IC1902 RH-iXC448WJZZS EDID (HDMI)
IC1922 RH-iXC447WJZZS EDID (HDMI)
IC1201 RH-iXC206WJZZS EDID (PC)
IC8101 RH-iXC564WJZZS EEPROM
2. After replacing the LCD panel, adjust the VCOM in the following procedure.
1) Enter the process adjustment mode.
2) Use the cursor keys / and P / of R/C to select the item [ VCOM ADJ] on the page 11/11.
3) Press the OK key to verify that the adjustment pattern is displayed.
4) Use the + / - keys of VOL of L/C to adjust the flicker in the center of the screen to minimum.
5) When the optimal state is achieved in Step 4, press the OK key to turn the pattern to OFF.
[2] SOFTWARE UPDATING
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:
Computer TV set
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
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:
LC-37D44E/S/RU-BK/GY
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
LC-37D44E/S/RU-BK/GY
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 syn-
taxes 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 continuously. If this symbol charac-
ter 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 pro-
grams\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 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” to update
another time the TV set.
3 – 3
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:
Computer TV set
LC-37D44E/S/RU-BK/GY
TV Set
Software requirements:
To upgrade VCTp software from RS-232C external connector is necessary to use a Tera Term (Pro) free software.
The URL of Tera Term home page is:
http://hp.vector.co.jp/authors/VA002416/teraterm.html
(The address may be changed in future)
Tera Term (Pro) supported operating systems:
MS-Windows 95 or upper
MS-Windows NT 3.5 and 4.0 or upper
Note.- For Windows 3.1 use Tera Term version 1.X.
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
LC-37D44E/S/RU-BK/GY
1) Select: Serial→COM X→ O.K.
2) Select: Ter minal
3) Choose the same options as the above picture.
3 – 5
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.
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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.
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7) Select: File → Transfer → XMODEM → Sent
8) Choose the file for upgrade and click “Open”.
9) After select “Open” the upgrade process starts as follows:
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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) thought 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)
TV Set
(CI Terminal)
TV Set
Jig
~
~
RS-232C
IOIOI
• Software requirements:
1. “Winupload” application software on PC.
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• 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.
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.
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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.
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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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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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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.)
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