PT-LX270U, PT-LX270E, PT-LX270EA, PT-LX300U, PT-LX300E, PT-LX300EA (serv.man3) - Panasonic Projector Service Manual (repair manual). Page 51

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PT-LX270 / PT-LX300 series
5-4
5-1-3  Firmware Upgrade 
Procedure
1. 
Set-up
    -  Hold on "Power" button and plug in the 
power cord.
    - Until Power ,Temp,Lamp LED will light red , 
       Loosen “Power” button.
   - Connect projector with RS232 cable to PC.    
 
2. Execute the "DLP Composer
TM
 Lite 11.1" 
file.
3. Setting "11.1FlashDeviceParameters".
- Select the file "11.1FlashDeviceParameters".
- Put "FlashDeviceParameters" file into the  
      folder where you setup "DLP Composer Lite  
      11.1". 
      
   
4. Click "Edit" and "Perferences".
 
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