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1. A Modem-null (Cross type) DB9 female to DB9 female cable.

2. An adaptor DB9 male to mini-Din 9 pin male cable (Sharp Code: QCNWGA015WJPZ)

3. Make the connections as indicated in the figure:

To upgrade VCTp software from RS-232C external connector is necessary to use a Tera Term (Pro) free software. 

 

The URL of Tera Term home page is: 

 

http://hp.vector.co.jp/authors/VA002416/teraterm.html

 

(The address may be changed in future)

Tera Term (Pro) supported operating systems:

 

MS-Windows 95 or upper

 

MS-Windows NT 3.5 and 4.0 or upper

Note.- For Windows 3.1 use Tera Term version 1.X.

Copy all the distribution files to an empty floppy disk or temporary directory (for example C:\ TEMP ).

Run SETUP.EXE and follow the instruction given by it.

After the installation, the distribution files are no longer needed, you can delete them or may keep them in the floppy 

disk.

When the Tera Term (Pro) program is used, it’s necessary to shape some settings. Follows next action to configure 

the connection:

The hardware tools requirement are: 

1.  A Modem-null (Cross type) DB9 female to DB9 female cable. 

2.  An adaptor DB9 male to mini-Din 9 pin male cable (Sharp Code: QCNWGA015WJPZ) 

3.  Make the connections as indicated in the figure: 

Before  using  RS-232C  updating  method  is  necessary  to  configure  a  Terminal  PC  software. 

HyperTerminal  has  been  selected  as  a  Terminal  software  because  it’s  include  in  all  Windows 

versions  as  an  accessory,  and  you  can  find  it  inside  “Accessories\Communications”  folder.  For 

this reason, please follow carefully the next steps: 

1.  First  time  HyperTerminal  is  used,  it’s  necessary  to 

configure some settings. Follows next action to configure 

two  connection:  low  speed  (9600bps)  and  high  speed 

(115200bps).

2.  Create a New Connection file with name “P55_9600bps”. 

3.  Select  a  free  COM  port    and  select  the  Port  Settings 

properties as follows: 

Computer 

TV set

1. Select: 

Serial ⇒ COM X ⇒ O.K. 

4. Select   

Setup ⇒ Serial port ⇒ O.K. Appear the follow screen:

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. 

2. Select: 

3.  Choose the same options as the above picture.

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:

9. After select “Open” the upgrade process starts as follows:

8. Choose the file for upgrade and click “Open”.

Choose the file for upgrade and push “open”. 

.

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

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. 

Enter in service mode and check the main soft version. 

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.

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. 

Enter in service mode and check the main soft version.