Comtech EF Data RC-1160 - Manual (Page 39)

Maintenance Revision 1
RC-1160 RC-1260 Redundancy Switch Controllers MN-RC1160RC1260
4–1
Chapter 4. MAINTENANCE
This chapter describes maintenance, troubleshooting, and servicing with power ON.
4.1 Maintenance
Under normal conditions, this redundancy system does not require periodic or preventive maintenance.
4.2 Troubleshooting
Most problems, if any, will arise during initial installation. The problems will most often be due to improper
cabling. For more information, refer to the waveguide wiring section (Chapter 1).
If the power supply’s PS1 or PS2 LEDs do not illuminate with AC power applied, then check the circuit
breaker/switch (CB1 and CB2). On the other hand, if the DC waveguide switchboard is installed, check the DC
output at test point E-1. If the +14V power does not appear at the LNA/LNB, check the cable wiring.
4.3 Servicing with Power ON
WARNING
110 VAC is applied to the waveguide switch driver PWB pins in maintenance
mode.
To perform maintenance with the power ON:
1.
Select the appropriate LNA/LNB to be online and remove the lid.
2. Set Normal/Maintenance switch SW1 to “Maintenance” (refer to Section 3.4).
3. The maintenance LED and front panel fault LEDs will light.
4. Disconnect ribbon cables on the board affected.
5. Take care when replacing boards or parts.