Sharp LC-26D44E (serv.man4) Service Manual ▷ View online
LC-26D44E/S/RU-BK/GY
3 – 5
1) Select: Serial
→COM X→ O.K.
2) Select: Terminal
3) Choose the same options as the above picture.
LC-26D44E/S/RU-BK/GY
3 – 6
4) Select: Setup
→ Serial port → O.K. Appear the follow screen:
5) Select follows settings:
6) Check the connection between TV set and PC, sending a wrong command, as for example: “aaa”. TV set returns an “err” label as an syntaxes
ERROR (Not correct order or sequence).
Send a “DWMD” (capital letters) command to enter TV set in Download Mode.
Change a baud rate to 115200.
Select: Setup
→ Baud rate → 115200 → O.K.
Serial port to use:
COM x
Baud rate:
9600
Data:
8 bits
Parity:
none
Stop:
1 bit
Flow control:
none
Enter O.K.
LC-26D44E/S/RU-BK/GY
3 – 7
7) Select: File
→ Transfer → XMODEM → Sent
8) Choose the file for upgrade and click “Open”.
9) After select “Open” the upgrade process starts as follows:
LC-26D44E/S/RU-BK/GY
3 – 8
10)When flash update process finishes, the “Flash programming complete” label appear in the screen, the device automatically go to switch off, and
in a few seconds go to switch on again.
VERY IMPORTANT NOTE:
During the updating time, please don’t use the PC for other purposes, in order to abolish communication problems between TV set and PC.
If TV set was not updated properly, the TV won’t have the software to startup again, and you must follow the “I2C method” to update
another time the TV set.
If TV set was not updated properly, the TV won’t have the software to startup again, and you must follow the “I2C method” to update
another time the TV set.
3. How to update the Digital Board Software.
There are 2 methods to update the Digital Board Software on Flash Memory (IC4251) throught the Digital Processor (IC4001).
• RS-232 Method (From PC trough RS-232C COM port).
• PCMCIA CARD (Compact Flash Memory) Method.
NOTE: The PCMCIA method is only compatible with those PCs running XP Windows Version.
3.1. Jig RS-232 Method Description
• Hardware requirements:
1. A modem null (Cross type) DB9 female to DB9 female cable.
2. Make the connections as in the below figure.
• Software requirements:
1. “Winupload” application software on PC.
~~
Computer
TV Set
(CI Terminal)
Jig
RS-232C serial control cable
(cross type, commercially available)
RS-232C
IOIOI
TV Set
Click on the first or last page to see other LC-26D44E (serv.man4) service manuals if exist.