Research Concepts RC2500 - Manual (Page 72)

RC2500 Antenna Controller Appendix B Field Upgrading 65
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Appendix B – Field Upgrading
Updating RC2500 Antenna Controllers that are In-Service.
This paper explains the procedure for upgrading the firmware for RC2500 series Antenna Controllers.
The controller firmware is contained in an EPROM memory chip. Changing the EPROM may sometimes
corrupt the data stored in the non-volatile memory of the controller. This procedure ensures that this data
is valid after the upgrade. Following the firmware upgrade procedure, the system reset and operating
voltage change procedures are listed.
1. Enter into CONFIG mode and verify that Expert Access is enabled. (See manual section 5.8.11 for
enabling instructions) Verify that REMOTE MODE is enabled. (See manual section 5.8.3 for enabling
instructions) Scroll through the list with the SCROLL UP and SCROLL DWN keys. Log every item on
the included worksheet.
2. Using AUTO mode, position the antenna on each of the geostationary satellites stored in memory.
Record the name, longitude, and azimuth/ elevation positions for each on the bottom half of the
Config mode items worksheet. While positioned on each satellite, use the H and V keys to move to
horizontal and vertical polarization (if applicable). Record these values on the worksheet.
3. Turn the unit off and disconnect it from the remaining components of the antenna system. Move the
unit to a static-free workstation for chip replacement. Remove the lid and position the unit on the
bench facing toward you.
4. Locate the RC2500 digital board (B-2_5KDIG1) located on the right side of the unit. Remove the
existing EPROM chip (U4) from its socket and replace it with the upgrade EPROM.
5. Make sure proper grounding straps are used to avoid static discharge damage to the processor
section. Make sure the chip is oriented properly in its socket. The notch or dot should line up with
the notch of the outline silk-screened onto the PCB under the socket. Make sure that the legs of the
EPROM package fit into each pin socket and do not bend up under the IC upon insertion.
6. Verify that U4 is properly oriented in its socket. Replace the lid, reinstall the 2500 into the rack, and
reconnect the other components of the antenna system.
7. Power-up the RC2500 and verify the start-up banner and subsequent manual mode.
8. Go to CONFIG mode and key-in the data recorded in Step 2. Each entry must be terminated with the
ENTER key. After the data has been entered, scroll through the CONFIG mode items and verify
correct data entry.
9. Go to SETUP mode. Position the antenna on each of the satellites that were recorded in step 2.
Select the satellite name, enter the satellite longitude, and move the polarization axis to the recorded
H and V positions in response to the appropriate SETUP mode prompts. See Sec. 5.5 for SETUP
mode details.
10. Using AUTO mode, position the antenna on each of the geostationary satellites stored in memory.
Verify that the antenna moves to each satellite correctly. This completes the procedure.