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.
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
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)
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.
(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 6th 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)
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 6th 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.)
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.
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.)
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.
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.
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.
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.
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.
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.
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.
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.
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.
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].
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.
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.
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
