SHARP LC-45GX6U/D/T - TU-GD10U-T - TU-45GAD/T SERVICE MODE AND POWER SUPPLY CIRCUIT

HOME

SHARP TV

SHARP BLU RAY

SHARP LC-45GX6U/D/T 

TU-GD10U/T - TU-45GAD/T 

SERVICE MODE AND POWER SUPPLY CIRCUIT

ADJUSTMENT PROCEDURE
The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is required due to part replacement, make an adjustment according to the following procedure.

Caution: When replacing the following units, make sure to prepare the new units loaded with updated software.
DIGITAL TUNER unit: DKEYDC307FE19
DVI/HDMI unit: DUNTKC267FE40

Display adjustment procedure
1. Adjustment procedure
Enter the adjustment process mode > Adjust VLS BIAS (15V) voltage >Adjust GRAY LEVEL (14.2V) voltage > Adjust COM BIAS > Adjust background
2 Entering the adjustment process mode (regardless of whether or not the system cable is connected)

[Caution] When entering the adjustment process mode, do not change the set values other than those for the basic adjustment described below. The system may be damaged beyond recovery.

(1) Unplug the AC cord with the monitor power SW "ON".
(2) While holding down the "VOL + " and "V CH" keys at a time, plug in the monitor AC cord. The unit starts up in the "monitor process mode". Page 1 of the "Monitor adjustment mode" appears.
(The same displays appear on the left and right sides of the screen.)
* To exit the adjustment process mode, turn off the power.

Basic operation (Remote controller operation)

Key	Function 1 (when on the left side of a page)	Function 2 (when changing a numeric value)
Cursor UP	Moving up by one item or moving to the previous page (when at the top)	Incrementing the adjustment value by one
Cursor DOWN	Moving down by one item or moving to the next page (when at the bottom)	Decrementing the adjustment value by one
Cursor RIGHT	Moving to the right by one item	Moving to the right by one item
Cursor LEFT	Moving to the left by one item	Moving to the left by one item
ENTER	Test pattern off	Executing the item
INPUT	Moving to the next page	Moving to the next page
CH_UP	Moving up by one item or moving to the previous page (when at the top)	Incrementing the adjustment value by one
CH_DOWN	Moving down by one item or moving to the next page (when at the bottom)	Decrementing the adjustment value by one
VOL_UP	Moving to the right by one item	Moving to the right by one item
VOL_DOWN	Moving to the left by one item	Moving to the left by one item

Adjustment Procedure
VLS BIAS (15V) voltage adjustment
Go to "VLS BIAS" with the cursor (UP/DOWN) keys and select the value with the cursor (LEFT/RIGHT) keys. Connect a digital voltage meter to TP4827 (TL4843) on the LCD_CONT_TOP PWB and adjust the value with the cursor (UP/DOWN) keys to 15.00V±0.05V.
GRAY LEVEL (14.2V) voltage adjustment
Go to "GRAY LEVEL" with the cursor (UP/DOWN) keys and select the value with the cursor (LEFT/ RIGHT) keys. Connect a digital voltage meter to TP4501 (TL4501) on the LCD_CONT_TOP PWB and adjustt a value with the cursor (UP/DOWN) keys to 14.20V±0.05V. Make sure to adjust the value accurately as this power supply voltage will be used as a reference voltage for the gradation voltage.
COM BIAS adjustment
Shift to the [COM BIAS] item with the cursor UP/DOWN key and select a numeric value with the cursor RIGHT/LEFT key. Changing the numeric value with the cursor UP/DOWN key will make appear the test pattern. Make an adjustment so that the flicker near the center of the screen is minimized.
Background adjustment
(1) Connect the AVC center and monitor for the background adjustment.
(2) Display the adjustment confirmation screen (gray scale).
(3) Go to "PATTERN" with the cursor (UP/DOWN) keys and press "ENTER".
Go to "PATTERN PAGE2" with the cursor (DOWN) key.
(4) Adjust ADJ to 6 and press "ENTER".
(5) Set the 6th point to the designated gradation and adjust RGB to obtain the standard value for the 6^th point.
(6) Set the 1st point to the designated gradation and calculate the G set value of the 1st point using the following formula: G initial value of the 1st point x (G adjustment value of the 6th point/928) (rounding off fractions). Then adjust RB to obtain the standard value of the 1st point.
(7) Set the 2nd point to the designated gradation and calculate the G set value of the 2nd point using the following formula: G initial value of the 2nd point x (G adjustment value of the 6th point/928) (rounding off fractions). Then adjust RB to obtain the standard value of the 2nd point.
(8) Set the 3rd point to the designated gradation and calculate the G set value of the 3rd point using the following formula: G initial value of the 3rd point x (G adjustment value of the 6th point/928) (rounding off fractions). Then adjust RB to obtain the standard value of the 3rd point.
(9) Set the 4th point to the designated gradation and calculate the G set value of the 4th point using the following formula: G initial value of the 4th point x (G adjustment value of the 6th point/928) (rounding off fractions). Then adjust RB to obtain the standard value of the 4th point.
(10) Set the 5th point to the designated gradation and calculate the G set value of the 5th point using the following formula: G initial value of the 5th point x (G adjustment value of the 6th point/928) (rounding off fractions). Then adjust RB to obtain the standard value of the 5th point.
(11) Adjust CALC to 1 and calculate. Confirm that the adjustment has been made correctly to exit.
[North America]
Standard value 1: x=0.295, y=0.305 [Minolta CA-110] (216 gradations)
Standard value 2: x=0.295, y=0.305 [Minolta CA-110] (352 gradations)
Standard value 3: x=0.295, y=0.305 [Minolta CA-110] (528 gradations)
Standard value 4: x=0.295, y=0.305 [Minolta CA-110] (656 gradations)
Standard value 5: x=0.295, y=0.305 [Minolta CA-110] (800 gradations)
Standard value 6: x=0.291, y=0.300 [Minolta CA-110] (928 gradations)

AVC Adjustment procedure
Entering and exiting the adjustment process mode
(1) Before entering the adjustment process mode, press the "RESET" button or execute the AV position RESET in the video adjustment menu. (Return to the default value.)
(2) While holding down the "VOL (–)" and "INPUT" keys at a time, insert the AC power plug into the wall outlet. The letter “ K ” appears on the screen.
(3) Next, hold down the "VOL (–)" and "CH (DOWN)" keys at a time. (The VOL " (–)" and "CH (DOWN)" keys should be pressed and held until the display appears.)
Multiple lines of blue characters appearing on the display indicate that the unit is now in the adjustment process mode. When 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 cord from the outlet to make a forced shutdown. (When the power was turned off with the remote controller, once unplug the AC cord and plug it again. In this case, wait 10 seconds or so before plugging.)

Caution: Use due care in handling the information described here lest your users should know how to enter the adjustment process mode. If the settings are tampered in this mode, unrecoverable system damage may result.

Software version upgrade
The model employs the following software.
# Main software
# Monitor microprocessor software
# Card microprocessor software
The main software and the monitor microprocessor software can be upgraded by using a general-purpose SD memory card.
The card microprocessor software can be upgraded by using a PC card. The followings are the procedures for upgrading, explained separately for each of the main software, the monitor microprocessor software and the card microprocessor software.

Main software version upgrade
Get ready before you start
# SD memory card of 16MB or higher capacity
# PC running on Windows 98/98SE/ME/2000/XP operating system
# SD memory card reader/writer with USB connectivity and PC card adapter
# SD memory card formatting software
Preparations
To upgrade the main software, it is necessary to get ready the SD card for version upgrade before you start.
Follow the steps below and create the SD card for version upgrade.
1. Insert the SD card into the SD card reader/writer. Start the SD card formatting software. Click [Format].
(When you have the drive options, select the drive where the SD card is inserted before you proceed.)

2. When the formatting is over, Click [OK].

3. Click [Exit] to finish the formatting.
Note: When you are done, take out the SD card once to make sure it is finished, and then insert it again.

4. Copy the binary image file KD2UUxxx.SDC (named temporarily) for version upgrade to the root directory (folder) of the SD card drive.
Note: In the SD card drive, do not store other folders or unrelated files, or more than one binary image files for
version upgrade.
Now the SD card for version upgrade is ready.

How to upgrade the software
1. Shut off the AC power (i.e. unplug the AC cord).
2. Insert the SD card for version upgrade (prepared as above) into the service socket.
Note: If the SD card is inserted in a wrong way, the card will go deep inside the unit beyond retrieval. Take due care to insert the SD card correctly.
3. While depressing the DIGITAL RESET button, turn on the AC power (i.e. plug in the AC cord).
Note: After the unit is started, you may release the DIGITAL RESET button.
4. After the unit startup, the system upgrade screen as shown below appears within 10-20 seconds.

5. Even a single failure in the process will trigger the upgrade failure screen as shown below. The word "NG" changes to red for the item failed.
Note: In the event of a failure, repeat the upgrading process. If the process repeatedly fails, it is likely that the hardware is troubled.

6. Upon completion of the whole process, the upgrade success screen as shown below appears. You can check the new software version on this screen. The version information appears after the upgrade is complete.
Program version: The main software version information appears.

7. Shut off the AC power to the unit (unplug the AC cord), and remove the SD card for version upgrade.
8. Now the software version upgrade is complete.
Note: When you are done with the software version upgrade, start the set, go to the top page of the adjustment process screen and check the main software version information.

Monitor microprocessor software version upgrade
Get ready before you begin
Get ready the same items as listed in the "Main software version upgrade".
Preparation
Create the SD card for monitor microprocessor software version upgrade in the same manner as explained in the "Main software version upgrade". Copy the binary image file for monitor microprocessor software version upgrade to the SD card drive.
How to upgrade the software
During the monitor microprocessor software version upgrade, the progress of upgrading is not shown on the display screen. The upgrading process is seen in the blinking of the power LED.
1. Shut off the AC power to the unit (i.e. unplug the AC cord).
2. Insert the SD card for version upgrade (prepared as above) into the service socket.
Note: If the SD card isn't inserted properly, the card will go deep inside the unit beyond retrieval. Take due care to insert the SD card correctly.

Note: If the SD card is inserted in a wrong way, the card will go deep inside the unit beyond retrieval. Take due care to insert the SD card correctly.
3 While depressing the DIGITAL RESET button, turn on the AC power (i.e. plug in the AC cord).
Note: After the turning on backlight you may release the DIGITAL RESET button.

Caution: The moment this operation is done, the upgrading of the monitor microprocessor software starts. While the upgrade is ongoing, never power off the unit. Otherwise the upgrade will fail and the system may have a serious damage beyond recovery (inability to start).

4. After few seconds from turning on backlight, you will see turning off the backlight.
5. The unit restarts automatically, and the normal startup screen appears (it will take 2-3 minutes).
6. Shut off the AC power to the unit (unplug the AC cord), and remove the SD card for version upgrade.
7. Now the software version upgrade is complete.
Note: When you are done with the software version upgrade, start the set, go to the top page of the adjustment process screen and check the monitor microprocessor software version information.

Card microprocessor software version upgrade
Get ready before you start
# CF (Compact Flash) of 32MB or higher capacity
# PCMCIA adapter for CF
# PC with PCMCIA slot running on Windows 98/98SE/ME/2000/XP operating system Creating the PC card for version upgrade
Formatting the PC card
1. Insert the PC card into the PC card slot.
2. Open [My Computer] window, choose the relevant drive (e.g. H drive) and right-click it.
3. Select [Format] in the menu.
4. Under the file system, there are [FAT32] and [FAT] options. Select [FAT], and click [Start].
5. A dialog box requesting your confirmation appears. Click [OK].
6. Wait until the formatting is over. Then click [OK].
After this, click [Close].

Creating a new "boot" folder directly under the card root directory
1. Create H:¥boot if the card is in H:¥drive.
2. Click [File], point to [New Creation], and click [Folder].
3. Rename the folder as [boot].
Copying the version upgrade file to the PC card Using a drag-and-drop action, copy the "aqb5cu.img" (temporarily named) file for version upgrade to the "boot" folder.
Removing the PC card
1. Click [Safely removing hardware] in the task bar, select [PCMCIA IDE/ATAPI Controller], and click [Stop].
2. Select PC card in [Stop hardware device], and click [OK].
3. After confirming that you can safely remove the hardware, remove the PC card. Now the PC card for version upgrade is ready.

How to rewrite the software
After rewriting the software, check the version No. in the process mode.
1. With the set still powered on, pull the AC power plug out of the wall outlet to turn it off forcedly.
2. Insert into the set the PC card created in "Creating the PC card for version upgrade" described above.
3. Insert the AC power plug back into the wall outlet.
4. Select the card mode by pressing the menu button.
5. The card microcomputer programs are read from the PC card automatically.
Wait for about 2 minutes until the reading is completed. Nothing is displayed for about 50 seconds after power-on.
Step 1: The OSD display "Card error ~" appears.
Step 2: When the OSD display "Card is being read" appears, the reading is completed successfully.
* If the reading ends in failure, perform the above steps 1 to 5 again after power-off.
6. Disconnect the AC power plug from the wall outlet to turn off the set forcedly.

POWER SUPPLY CIRCUIT 

GD10U-T/45GAT 

CLICK ON THE IMAGES TO ZOOM IN

TU-45GAD

CLICK ON THE IMAGES TO ZOOM IN

PANASONIC TX-26LXD70A - TX-32LXD70A - SERVICE MODE - AND - POWER SUPPLY - CIRCUIT

HOME

PANASONIC TV

PANASONIC BLU RAY

PANASONIC TX-26LXD70A - TX-32LXD70A 

SERVICE MODE AND POWER SUPPLY 

Service Mode
How to enter into Service Mode
While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 3 seconds.

Key command
“1” button...Main items Selection in forward direction
“2” button...Main items Selection in reverse direction
“3” button...Sub items Selection in forward direction
“4” button...Sub items Selection in reverse direction
“VOL” button...Value of sub items change in forward direction ( + ), in reverse direction ( - )

How to exit
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.

SRV-TOOL

How to access
1. Select "SRV-TOOL" in Service main Mode.
2. Press [OK] button on the remote control.

Exit
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.

OPTION Setting
If the memory IC or DG Board is replaced, option code should be re-memorized. If you use for other model, you should re-memorized the different option code in SERVICE mode.

Sub-Contrast Adjustment

procedure
1. Receive the sprit color bar (which includes white 100% erea).
Inspection
1. Enter Factory adjustment mode, and select "ADJUST" mode. Volume UP/DOWN key makes GAIN displayed under "Dynamic" to set. Pushing the remote controller "Yellow" key for about 3 seconds, GAIN is suited to the adjustment value automatically.

Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD protected)" can generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, alminum foil or comparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise hamless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to damage an ES device).

POWER SUPPLY CIRCUIT 

CLICK ON THE IMAGE TO ZOOM IN

HITACHI 42HDX99 - SERVICE MODE

HITACHI 42HDX99

SERVICE MODE 

ADJUSTMENT PROCEDURE START-UP
The 42HDT79 42HDS69 and 42HDX99 PDP TV sets pass through adjustment procedures during the assembly process. These adjustments must be done to assure the best performance of the PDP set for the consumer. Also, after servicing, these same adjustments must be done. The adjustments are all made through the I2C bus by changing data in the Adjustment mode menu.

HOW TO GET TO ADJUSTMENT MODE
Chassis adjustment mode can be access by pressing the R/C keys MENU + MENU + 8 + SELECT to enter adjustment mode. For some parameters the only way to see them is by selecting the parameter number than pressed SELECT in order to see it; then DATA can be change if other parameter needs to change then press DOWN key then repeat the same procedure.

Other way to access this mode is by use JIG R/C code: (9C Hex). To escape from Adjustment Mode press “INPUT” key on Side panel or EXIT key of R/C to exit service adjustment mode.
CHANGING DATA AND SELECTING ADJUSTMENT CODE
When the PDP set is in adjustment mode, the cursor LEFT, RIGHT , UP,DOWN  and MENU keys of the remote control or front panel may be used as the adjustment keys.
A. Use any Hitachi remote control when making an adjustment. UP DOWN keys are used for selecting adjustment item. LEFT, RIGHT keys are used for changing data values.
MENU key is used to advance through the adjustment mode menus and pages.

B. To make a selection, use the NUMBER pad on the PDP R/C ; example : select DEVICE press 69 then SELECT the DATA shown is "EB" ; if this DATA needs to be change press the LEFT, RIGHT keys to modify, when finish press SELECT key to store the new DATA value. normal condition.
C. After finishing the necessary adjustment press the R/C EXIT key or EXIT key on the side panel. Adjustment mode is released and PDP set returns to normal condition.

MEMORY INITIALIZE
MEMORY INITIALIZE OPERATION
NOTE: The execution of this function returns the adjustment codes to the preset values, therefore, adjustment data will be lost.

Procedure
(1) Enter Adjustment mode by the method described in sub-items 1.1 and 1.2 from item 1 (“Adjustment procedure start up”).
(2) Get to the second page of Adjust Mode by pressing remote control “Menu” key once, or with either the R/C or front panel UP,DOWN  cursor keys several times.
(3) Select MEMORY INIT adjust code.
(4) Activate MEMORY INIT by pressing  cursor RIGHT key for more than 3 seconds.
(5) Check the following process for initialization operation.

Process of Memory Initialize operation.
A.A screen is be colored cyan when MEMORY INIT start.
B.A screen is be colored green when MEMORY INIT finish normally.
C.A screen is be colored red when MEMORY INIT finish abnormally.

(8) When PDP turns ON , it will tune CH03 this is the complete operation of Memory Initialize process.
(6) Do not unplug from AC outlet until this operation is complete and do not perform any key operation either, after this operation each factory setting and
all adjust mode data should reset to delivery settings automatically.
(7) After Memory Initialize, it should be unplug AC cord. Unplug and plug AC cord and then all settings and data are updated.

WHITE BALANCE ADJUSTMENTS
General Notes for White Balance
(1) If the incident illumination is more than 20 lux, change the environment (location, lighting, etc.) and ensure it to be less than 20 lux.
(2) At least one of the color drive codes must stay at its maximum value, FFH.
VIDEO COLOR TEMPERATURE ADJUSTMENT (HIGH)
Preparation
(1) Set the output of signal generator to white raster. (Ratio:100%)
(2) Component signal 42” 55” Video level: 0.700Vp-p 0.280Vp-p SYNC: 0.300Vp-p 0.286Vp-p Set-up level: 0V 0V
(3) Input white raster signal into COMPONENT input terminal of the PDP set.
(4) Set user control to Day mode. (Picture Mode)
(5) Confirm that the mode is set as “Factory Setting Mode”.
(6) Aspect:  Video: Expanded
Adjustment
(1) Perform the following adjustment with the remote control.
(2) Set the CRT color analyzer (CA-100) at the center of the panel.
(3) Set color temperature to “HIGH”.
(4) Ensure that Adjustment R/G/B DRIVE (HIGH) are all set as FF.
(5) After receiving White raster signal, step down the two (or one) among Adjustment R/G/B DRIVE (HIGH) and adjust the value.

Remarks
(1) Color temperature should be adjusted under the condition in which the screen is the brightest, thus the initial value for adjustment is set to its maximum.
(2) Adjustment is made by reducing brightness only. Reduce a bright color for adjustment.
(3) Video color temperature & Adjustment No. are the same, but addresses in the memory are different, thus there’s no problem.

VIDEO COLOR TEMPERATURE ADJUSTMENT (STD)
Preparation
(1) Same as “Video Color Temperature adjustment: (HIGH)”. For 55” video level changes to 0.700Vp-p.
Adjustment
(1) Perform the following adjustment with the remote control.
(2) Set the CRT color analyzer (CA-100) at the center of the panel.
(3) Set color temperature to “STD”.
(4) Ensure that Adjustment R/G/B DRIVE (STD) are all set as FF.
(5) After receiving White raster signal, step down the two (or one) among Adjustment R/B/G DRIVE (STD) and adjust the value.

VIDEO COLOR TEMPERATURE ADJUSTMENT (B/W) (Only for HDX models)
Preparation
(1) Same as “Video Color Temperature adjustment: (HIGH)”. For 55” video level changes to 0.700Vp-p.
Adjustment
(1) Perform the following adjustment with the remote control.
(2) Set the CRT color analyzer (CA-100) at the center of the panel.
(3) Ensure that Adjustment R/G/B DRIVE (B/W) are all set as FF.
(4) After receiving White Raster signal, step down the two (or one) among Adjustment R/B/G DRIVE (B/W) and adjust the value.

DIGITAL MAIN CHECK
SYSTEM SOFTWARE VERSION CHECK
(1) Press Menu button on the R/C or control panel.
(2) Enter the SETUP options, and then look for UPGRADES option.
(3) The Main software version will be display V0100.0000

(4) If this version needs to be change for a design improvement or failure, please select the Upgrade Now button.

(5) The upgrading process begin by filling  bar, when finish the message will say, “Upgrade complete …” when this appear unplug the TV from the AC line outlet to complete the process.
(6) Now plug again the TV and verify the new software version.
(7) The Main software version will display the latest version issue by design.

NOTE:
(1) A Service Bulletin will be sent when a new version is issued officially to the Service Department every time the soft ware version needs to be modified.
(2) In case that the upgrade fails or when a CARD is inserted with new version and can’t upgrade ; please perform the
FACTORY RESET process to the TV, then try upgrading again.

HOME	HITACHI TV

SHARP LC-60UD27UM - LC-70UD27U SERVICE MODE

HOME

SHARP TV

SHARP BLU RAY

SHARP LC-60UD27UM - LC-70UD27U

SERVICE MODE 

ADJUSTMENT PROCEDURE
The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is
required due to part replacement, make an adjustment according to the following procedure.
1.After replacement of any PWB unit and/or IC for repair, please note the following.
• When replacing the following units, make sure to prepare the new units loaded with updated software.
• When replacing the LCD control PWB, perform the VCOM adjustment.
2. Upgrading of each microprocessor software
CAUTION: Never “POWER OFF” the unit when software upgrade is ongoing.
Otherwise the system may be damaged beyond recovery.
Software version upgrade
The model employs the following software.
• Main software (please use a software version after ALTR_UD27U_XXX.USB).
The main software can be upgraded by using a general-purpose USB Memory.
The followings are the procedures for upgrading, main software can be upgraded as the same time.
Main software version upgrade
Get ready before you start
• USB Memory of 512MB or higher capacity.
• PC running on Windows 98/98SE/ME/2000/XP/Vista/Win7/Win8 operating system.
• USB Memory reader/writer or PC with a USB port.
• The file system of a USB memory is FAT. (FAT32 supports)
• Use the USB memory without other functions. (lock and memory reader...etc)
Preparations
To upgrade the main software, it is necessary to get ready the USB Memory for version upgrade before you start.
Follow the steps below and create the USB Memory for version upgrade.
1. Copy the file ALTR_UD27U_XXX.USB for version upgrade to the root directory (folder) of the USB Memory.
NOTE: In the USB Memory drive, do not store other folders or unrelated files, or more than one file for version upgrade. Now the USB Memory for version upgrade is ready.

How to upgrade the software
1. Unplug the AC cord.
2. Insert the USB Memory for version upgrade into the service socket.
3. Plug in the AC cord with power button pressed down.
4. After 5 seconds, unpress the power button.
5. After the unit startup, the system upgrade screen as shown below within 20-40 seconds.

6. Even a single failure in the process will trigger the upgrade failure screen.

NOTE: In the event of a failure, repeat the upgrade process. If the process repeatedly fails, it is likely that the hardware need fixing.
7. Upon completion of the whole process, the upgrade success screen as shown below appears. You can check the new software version on this screen. The version information appears after the upgrade is complete.

8. Unplug the AC cord and remove the USB Memory for version upgrade.
9. Now the software version upgrade is complete.
NOTE: When you are done with the software version upgrade, start the set, go to the top page of the adjustment process screen and check the main software version information.

3. Entering and exiting the adjustment process mode
1) Before entering the adjustment process mode, the AV position RESET in the video adjustment menu.
2) While holding down the “VOL (–)” and “INPUT” keys at a time, plug in the AC cord of the main unit to turn on the power.
The letter “<K>” appears on the screen.
3) Next, hold down the “VOL (–)” and “CH ( V )” keys at a time.
(The “VOL (–)” and “CH ( V )” keys should be pressed and held until the display appears.)
Multiple lines of blue characters appearing on the display indicate that the unit is now in the adjustment process mode. When 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 cord from the outlet to make a forced shutdown. (When the power was turned off with the remote controller, once unplug the AC cord and plug it again. In this case, wait 10 seconds or so before plugging.)
CAUTION: Use due care in handling the information described here lest your users should know how to enter the adjustment process mode. If the settings are tampered 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 key	Main unit key	Function
CH ( ^/v )	CH (^ /v )	Moving an item (line) by one (UP/DOWN)
VOL (+/–)	VOL (+/–)	Changing a selected item setting (+1/ –1)
Cursor (UP/DOWN)	—————	Turing a page (PREVIOUS/NEXT)
Cursor (LEFT/RIGHT)	—————	Changing a selected line setting (+10/ –10)
INPUT	—————	Input switching (toggle switching)
ENTER	—————	Executing a function

*Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available.

PUBLIC MODE SETTING PROCEDURE
1. How to start Public Mode
• There are the following two ways to get the public mode setup screen displayed.
In the adjustment process mode, turn on “PUBLIC MODE”. Also press the “CH ( )” and “VOL (+)” keys on the set at once and turn on the power.
1) Press the “INPUT” and “VOL (+)” keys on the set at once and turn on the power.
2) Get the password input screen displayed.

Procedure
The input starts with the leftmost digit.
Use the numeric keys [1] thru [9] and [0] keys on the remote controller.
The other keys are not acceptable.
With a numeric-key input, "_" will change to " ".
The input position will move one digit to the right.
With all the 3 digits entered, the password will be verified.

3) The 3-digit password is now verified.
The password [0] [2] [7] provides for the public mode screen. (This screen comes on with whatever adjustment process settings.)
With any other passwords, the screen changes to the normal mode.

How to exit Public Mode
There are the following ways to quit the public mode setup screen.
• Turn off “PUBLIC MODE” in the adjustment process mode. ( * ) ← This way alone is not for quitting the setup screen, but for quitting the mode itself.
• Turn off the power with the “POWER” key. ( * )
• Select “EXECUTE”. ( * )
... “PUBLIC MODE” stays on in the adjustment process mode.
... The settings will be back to the factory ones.

Public Mode Menu
The guidance is not displayed on screen.
Setup procedure
• To move the cursor up and down, use the “cursor UP/DOWN” key (remote controller) and “CH (^ )/(v )” key (remote controller and set).
• To change the settings, use the “cursor RIGHT/LEFT” key (remote controller) and “VOL (+)/(–)” key (remote controller and set).
• To save new settings, keep the cursor at “EXECUTE” and use “ENTER” key (remote controller and set).

[How to use USB clone]
This is the function that copying the one TV's user setting to other TVs or copying previous user setting to itself.(Only same series.)
1. Insert the USB memory to TV.
2. Insert AC code of TV with pushing the “INPUT” and “Vol+” keys which are on the tact key.
3. Enter the password by using R/C. The password is “027”.
4. Select “COPY MODE”.
5. The follow guide is displayed. Then select the “TV→USB [Start]”.

7. Insert the USB which has the data from TV to another TV or itself.
8. Insert AC code of the TV with pushing the “INPUT” and “Vol+” keys which are on the tact key.
9. Select “COPY MODE”.

10.The following guide is dispalyed.Then select the “USB→TV [Start]”.

11.Follow guide is displayed when it is finished, then select “Reset”. TV will restart.

12.Confirm the user setting is copied.