Hitachi CP-DX250 Service Manual page 22

(2) Write Data into Main Board:
1. After changing Main board, or download firmware, reconnect power cable and RS-232
cable into Projector.
2. "Load From data" & "Retrieve System" :
(1) Click "Load From data" and select load file.
(2) Click "Retrieve System" to write the values into main board.
1-2. Select
the file
source
1-3. Click
"Load".
3. After data is written back, it shows the "Write complete" message in below information
block and it is finished.
1-4. Click "Retrieve System" to write data.
21
1-1. Click "Load
From Data" to
load data.