15
LC-20D42U
ADJUSTING PROCEDURE OF EACH SECTION
[1] ADJUSTMENT PROCEDURET
ME
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.
MAIN Unit:DUNKE001FMF1
2. Upgrading of each microprocessor software
2.1. Software version upgrade
The model employs the following software.
•
•
Monitor microprocessor software.
The main software and the monitor microprocessor software can be upgraded by using a general-purpose USB Memory.
The followings are the procedures for upgrading,explained separately for each of the main software,the monitor microprocessor software.
2.2. Main software version upgrade
•
USB Memory of 128MB or higher capacity.
•
PC running on Windows 98/98SE/ME/2000/XP operating system.
•
USB Memory reader/writer with USB connectivity.
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.
Caution:Never "POWER OFF" the unit when software upgrade is on going.
Otherwise the system may be damaged beyond recovery.
Get ready before you start
Preparations
1. Copy the file 42LTAxxx.USB(named temporarily) for version upgrade to the root directory (folder) of the USB Momory.
NOTE:In the USB Memory drive, do not store other folders or unrelated files, or more than one files for version upgrade.
Now the USB Memory for version upgrade is ready.
2. Unplug the AC cord. (make sure AC power shut down more than 1 minute.)
3. Insert the USB Memory for version upgrade (prepared as above) into the service socket located Right side from center at terminals,above
HDMI4 terminal in the rear of the unit.
4. plug in the AC cord with power button pressing after 5 seconds later, unpress the power button.
5. After the unit startup,the system upgrade screen as shown below appears within 20-40 seconds.
How to upgrade the software
SYSTEM UPGRADE
MAIN
MONITOR
45%
DETECT
U0612111
OLD Version
NEW Version
U0612201
MOISE_LITE
EEPROM
100%
USB - MEMORY
NO DATA
Boot Version
D42U_LITE 0.80
Main software
Summary of Contents for AQUOS LC-20D42U
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Page 49: ...6 5 4 3 2 1 A B C D E F G H 49 LC 20D42U SCHEMATIC DIAGRAM ËLED Unit ...
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Page 94: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 94 LC 20D42U MAIN Unit Side A ...
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Page 96: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 96 LC 20D42U MAIN Unit Chip Parts Side A ...
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