PT-VW350, PT-VW350D, PT-VW350T, PT-VX420, PT-VX420D, PT-VX420T, PT-VX421 (serv.man4) - Panasonic Projector Service Manual (repair manual). Page 78

ADJ-22

1. PC : Use for software transfer
2.  Communication cable : D-sub 9pin (male/female RS-

232C straight)

3.  Software&data :  Software for main CPU software& 

firmware data

  (Download from the projector service homepage.)

1.  Extract the software and data package to your favorite directory on your computer. 
2.  Take a memo of Baudrate and Parity set in the projector.
3. With user menu, setup the standby mode to "Normal" and set the projector into the standby.
4.  Connect the serial terminal of projector and PC with an RS-232C cable.

1. Double click the execution file [xxxx_1.02.exe]*1 in the extracted folder to start updating.
 *1  "xxxx" is specified with the projector's model name (development code). 
2. Below dialog window will appear. Click [OK] to extract.

  The updating software and firmware files will be extracted in the folder in which the execution file is stored.
  The software [PJ_Soft_Checker] will start up to authenticate the model no.

3. Confirm that the ON(G)/STANDBY(R) LED and LAMP LED are lighting, and then click [Confirmation] button.

Communication cable (straight)

D-Sub 9p (Male)

D-Sub 9p (Female)

Projector Connection terminals

Computer

If the communication to the projector 
is not established, click [Serial port 
setup] button to setup the communica-
tion setting to the projector.

BAUD RATE 

9600

DATA BIT 

8

STOP BIT 

1

PARITY BIT 

NON

Communication condition of the projector

If it is not target projector, the error 
message will appear.