120 20170-204a
Paragon
PD
Technical Manual
33
7.
A selection box opens, in the “Device Selector:” field, type M27C64A. Move to and choose the
brand of EPROM. Press ENTER to close the selection box. The program is now ready to config-
ure the EPROM and the name of the device is displayed at the bottom of the screen.
8.
Move to and select “Device”
9.
In the now opened sub-menu, move to and select “Program”.
10.
Press ENTER. The program loads the binary file into the EPROM (approximately fifteen sec-
onds). The message “Function complete” displays until directional arrows are pressed again. *
11.
Move to and select “Buffer”
12.
In the now opened sub-menu, move to and select “Clear”
13.
Press ENTER. The program displays at the bottom of the screen: “All buffers cleared”
14.
Press ENTER
15.
Move to and select “Quit”
16.
Press ENTER
17.
Remove configured EPROM from the EPROM Programmer
* If an “Error” message (and warning beep) appears during the procedure, it normally
indicates improper erasure of the EPROM. Replace it with a fresh one and start from
the beginning. The removed EPROM will need to be cycled through an EPROM
eraser.
6.1.5 EPROM
Installation
Warning
Always use a grounding strap and wear an anti-static bracelet when working with sensitive cir-
cuitry or components susceptible to static discharge or transients damage.
1.
Remove power to the radio
2.
Unscrew #1 Pozidriv screw on the front panel to slide out the module.
3.
Unscrew the fourteen #2 Pozidriv screws on the handle side and remove cover.
4.
Using a small flat-bladed screwdriver, carefully slide the blade between the EPROM socket and
the chip (IC1) itself. Gently pry the chip away from its base and remove. The removed EPROM
will need to be cycled through an EPROM eraser. Refer to Figure 19 on page 40.
5.
Install the appropriate EPROM by carefully grasping the chip between thumb and index and
gently inserting it with a rocking motion in its socket until well seated.
6.
Select the channel configured in the EPROM as detailed in the next section.
6.1.6 Channel Selection via DIP Switches
Channel selection is done via DIP switches inside each module.
Example: To select channel 5, the DIP switch settings are as shown in Figure 18 below.
Notes:
-
For channel 1 (one), switch #1 must be OFF and switches #2 through #7 must be ON.
-
Always have switch #8 set to OFF.
