Technical Manual

120 20170-201 Paragon
PD
Technical Manual
31
7. Select File, Exit to leave the program.
Figure 19 - Series I Channel Information
6.1.4 Programming the EPROM
Connect a straight 25-pin ribbon parallel cable between the PC’s LPT1 port and the EPROM
programmer. Apply power to it.
At the DOS prompt, type bp.exe to open the EPROM program software.
Paragon
PD
uses three 27C64 EPROMs (150 nanoseconds or faster) in the Exciter and Receivers
modules. Repeat the following procedure for each EPROM as needed.
Carefully grasp between thumb and index the 27C64 EPROM chip to be tested and gently insert
it with a rocking motion in the EPROM Programmer socket until well seated.
Navigate the programmer’s screen using the keyboard directional arrows. The left and right keys
move through the available options and the up and down arrows select the function.
1. Move to and select “Buffer”
2. In the sub-menu, move to and select “Load”
3. Press ENTER
4. In the opened box, type in the directory path where the file created in paragraph 6.1.3
above is located. In the list of filenames, move to the appropriate file and press ENTER
once to complete the selection and press ENTER a second time to load the file. This
closes the directory service box. The message “Load successful” displays until direc-
tional arrows are pressed again.
5. Move to and choose “Select”
6. Press ENTER