Toshiba 40LV703R User manual

SERVICE MANUAL
LCD Color Television
40LV703R Ver. 2.00
This model is classified as a green product (*1), as indicated by the underlined serial number. This
Service Manual describes replacement parts for the green product. When repairing this green
product, use the part(s) described in this manual and lead free solder (*2).
For (*1) and (*2), refer to GREEN PRODUCT PROCUREMENT and LEAD-FREE SOLDER.
© TOSHIBA CORPORATION
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FIRMWARE UPDATING
SOP of Firmware Upgrade
ATV Firmware Upgrade - Com port
Using USB to D-Sub 15 cable
1. COM Port and baud rate (9600 b s).
2. Select Read to load the file to be rogrammed into TV.
3. Push the button of Connect to connect TV and indentify the ty e of flash memory in
TV.
4. Push the Button of Run to start rogram firmware.
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Working method
Unlike the USB u grade (to be mentioned later) the whole code in flash memory
will be u graded com letely.
This u grade method can be done even the flash memory is blank.
ATV Firmware Upgrade - US
1. Co y an available file (to be mentioned later) into USB memory disk.
2. Insert USB flash disk with an available file into TV USB ort.
3. Reboot (AC Off/On) TV to u date firmware automatically, during u grading f/w a
rogress slider bar will be shown on dis lay.
4. Once f/w u grade is finished, a message of "U date Finished" will be shown on
dis lay.
5. Remove USB flash disk then turn AC Off/On to reboot TV, new f/w will be active.
Available file name

In order to not u grade firmware with incorrect code which is for other model, only the
bin filename consistent with the current u graded model is considered available, i.e.
the model name located in first 8 characters of filename will be checked.
The first found file with available file name will be a lied for u grade, so it is
recommended to kee only one available file for one model is flash disk.
For exam le 19AV703X_XXX_REV01.BIN. the model name 19AV703X (in blue)
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should match to current u graded model and total length of file name should be 23
characters, characters in red is not cared.
Available file name, Continued
Table 1. the file name of firmware for 703X series.
Table 1. Firmware naming
Internal Working Method
There are two art of codes in flash memory one is boot code the other one is
a lication code.
At ower u stage Boot code is first running u , it will check if there is USB
flash memory found.
If USB flash memory is not found then the rogram will run to a lication code
which is the one designed for whole system control such as OSD, remote control,
dis lay control etc.
Internal Working Method, Continued
Model Name File Name of IN Code
19AV703X 19AV703X_XXX_REVXX.BIN
22AV703X 22AV703X_XXX_REVXX.BIN
26AV703X 26AV703X_XXX_REVXX.BIN
32AV703X 32AV703X_XXX_REVXX.BIN
32LV703X 32LV703X_XXX_REVXX.BIN
37LV703X 37LV703X_XXX_REVXX.BIN
40LV703X 40LV703X_XXX_REVXX.BIN
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If USB flash memory is found, boot code will check if any available file name
memory disk, if it is then the whole file with 2048K bytes (if it's a firmware) will
be co ied to DDR memory first.
After co y is finished, rogram jum to DDR and co y the art of new
a lication into flash memory on board.
Once u grade is done, rogram will kee waiting for reboot.
Internal Working Method, Continued
As boot code will not check any of checksum, care should be taken to avoid any
of invalid file with file name as Table 1. in USB flash memory while running
firmware u grade rocess.

As boot code and a lication code are running inde endently, after rogram runs
to a lication code the boot code is not able to be found by a lication code, so
it is not ossible to im lement USB u grade directly from a lication code.
This u grade method can be done only when boot code is exist in flash memory.
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FUNCTION AND OPERATION
Front Key Controls
OSD operation for PC and TV OSD can be controlled by top control keypads or remote
control.
POWER key press will wake- p the TV set from 'Standby' mode.
Navigate to and select f nction via CHANNEL "+ / –" keys, and VOLUME "+ / –"
keys. Then adj st sing p/down f nctionality.
Access main men by pressing "MENU" key.
Switch so rce by pressing "INPUT" key.
LED Indicator
LED1: (On/Off Control)
LED2: (Timer Control)
Function TV/video ode PC ode
POWER Turn off/on the set Turn off/on the set
"+" (CHANNEL) Menu Navigate p/Channel up Menu Navigate p
"–" (CHANNEL) Menu Navigate Down/Channel Down Menu Navigate Down
"+" (VOL ME) Menu Navigate
Right/Increase/Volume up
Menu Navigate
Right/Increase/Volume up
"–" (VOL ME) Menu Navigate
Left/Decrease/Volume down
Menu Navigate
Left/Decrease/Volume down
MEN Enter /Exit OSD menu Enter /Exit OSD menu
INP T Source switch Source switch
Normal ON:
Green
Standby mode: Red
Switch OFF:
No light
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OSD Menu
To open the main men s (ill strated below), press MENU on the remote control or TV
control panel.
Timer ON:
Green
Timer OFF:
No light
Picture
Picture Settings
Active Backlight Control
3D Color management
Base Color adjustment
DNR
MPEG NR
Sound
Dual
Bass
Treble
Balance
Surround
Bass boost
SET P
Language
Country
Auto tuning
Manual tuning
AV connection
Quick Setup
Picture Position
Automatic Power Down
Location
Reset TV
Timer
Sleep Timer
On timer
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Re ote Control
On timer position
Function
Teletext
Panel lock
Auto format
4:3 stretch
Blue screen
Side panel
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POWER: Press to turn on/off the TV from or to standby mode.
VIDEO: 1. Press repeatedly to select the signal source.
2. The Source List should be activated and show on OSD
3. 1st press displays current, subsequent presses advance
STILL: Press to do freeze function
TEXT: Press to turn teletext mode ON/OFF (with MIX)
S BTITLE: TTX subtitle
STEREO/D AL: Press to select Mono / Stereo / D AL from TV RF input.
Number Key: 1. Press number button to direct access to TV channel
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Remote Control active area:
2. Press the pass code to activate the factory mode
3. Press to activate the Channel Lock (enter PIN code for Channel
lock)
4. If channel list OSD active - jump to that channel in the channel list
AD: N/A
ATV/DTV: N/A
VOL +/ –: Press to adjust the volume
I+/ INDEX: info display / TTX index
M TE: Press to Interrupt the sound or restore it.
OPTION: Go to shortcut menu
P / : 1. Press to browse channels
2. The channel number should appear on the set
G IDE: N/A
EXIT: Press to Exit OSD
Cursor Key: 1. Press cursor up/button to navigate OSD menu item
2. Cursor right key perform confirmation as well as proceed next level
of OSD
3. Can use cursor left to return previous level
MEN : Press to activate OSD menu and back to previous level of OSD
RET RN: Press to return previous level
OK Key: OK
Red Key: TTX Red button
Green Key: TTX Green button
Yellow Key: TTX Yellow button
Cyan: TTX Cyan button
REVEAL: TTX Reveal button
HOLD: TTX Hold button
F LL-TOP-BOTTOM: TTX zoom
TIME / TXCL: Time display / TTX cancel
Angle Distance
0 º (for H & V) ≥ 5 m
30 º (for H & V) ≥ 5 m
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