Adjusting Procedure Of Each Section - Sharp LC-26D43U Service Manual

LC-26D43U

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:DUNKE001FM04
2. Upgrading of each microprocessor software
Caution:Never "POWER OFF" the unit when software upgrade is on going.
Otherwise the system may be damaged beyond recovery.
2.1. Software version upgrade
The model employs the following software.
• Main 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
Get ready before you start
• 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.
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 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.
How to upgrade the software
2. Unplug the AC cord.
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.
SYSTEM UPGRADE
EEPROM
MAIN
45% 100%
MONITOR USB - MEMORY
NO DATA DETECT
OLD Version U0612111
NEW Version U0612201
Boot Version D42U_LITE 0.80
16
MOISE_LITE