LC-37GA9EK (serv.man7). Software Updating - Sharp TV Service Manual (repair manual). Page 6

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.

Select   Setup � serial port � O.K.
Appear a follow screen. 

Select a follow settings:
 Serial port to use: COM x 
       Baud rate: 9600 
       Data: 8 bits 
       Parity : none 
       Stop: 1 bit 
       Flow control: none 
Click O.K. 

5. Select follows settings:

Serial port to use: COM x

Baud rate:  

 9600

Data:  

 

 8 bits

Parity:    

 none

Stop:  

 

 1 bit

Flow control:  

 none

Enter O.K.

Check the connection between TV set and PC, sending a wrong command, as for 
example: “aaa”. TV set returns an “err” label as an syntaxis 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. 

Select to File � transfer � XMODEM � sent 

Check the connection between TV set and PC, sending a wrong command, as for 
example: “aaa”. TV set returns an “err” label as an syntaxis 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. 

Select to File � transfer � XMODEM � sent 

7. Select:  

File ⇒ Transfer ⇒ XMODEM ⇒ Sent

Choose the file for upgrade and push “open”. 

.

After press “Open” button the upgrade process starts as follows: