Troubleshooting Assistance for:

Replace Battery
Output power reduced, current low on one module, no alarms.
Tripped Power Module Breaker.
Meters are erratic & RF Sensitive.
Micro Processor Lock-Up (No alarms, cannot get RF Output Power and no IPA Volts).
Q1 & Q2, or Q3 & Q4, or Q5 & Q6 Alarms are on in a Power Module.
IPA Input and IPA Output Alarms.
Pin J1-1 of the NAPS09 Low Voltage Power Supply PWB is over-heated causing +24 VDC problems.


Replace Battery.

Probable Defect:  Battery is Low or Dead.

Future Preventative Maintenance: Notes:
Replace the battery at least once a year.  The battery may need to be replaced more often if the transmitter’s AC power is switched off on a daily basis. If you have a battery low alarm replace the battery immediately.

Output power reduced, current low on one module, no alarms.

Probable Defect:  RF Combiner connector, or cabling to modules.

Future Preventative Maintenance: Notes:
Check the combiner for broken connections.  Remove the rear cover and inspect for damage.

Tripped Power Module Breaker.

Probable Defect:  Temperature

Future Preventative Maintenance: Notes:
Wait 30 secs before resetting the module.  If the breaker trips again troubleshoot the suspect module.  If your remove the module, power will be reduced.

Meters are erratic & RF sensitive.

Future Preventative Maintenance: Notes:
Wipe the face of the meter with a cloth containing a small amount of dish detergent or antistatic spray.

Micro Processor Lock-Up (No alarms, cannot get RF Output Power and no IPA Volts).

Probable Defect:  Incorrect Battery Installation.

Future Preventative Maintenance: Notes:
Reset the transmitter.  Remove the batteries before turning the AC off and then complete the correct battery installation procedure.  The battery installation procedure can be found in the handbook.

Q1 & Q2, or Q3 & Q4, or Q5 & Q6 Alarms are on in a Power Module.

Probable Defect:  Blown Fuse in associated Power Supply Module.

Future Preventative Maintenance: Notes:
Each Power Supply contains 3 fuses.  Each fuse supplies a pair of amplifiers.

IPA Input and IPA Output Alarms

Probable Defect:  IPA Input Power Probe is Open Circuit.

Future Preventative Maintenance: Notes:
Inspect solder joints regularly. The T1 leads are soldered onto pads and occasionally one end will lift off.

Pin J1-1 of the NAPS09 Low Voltage Power Supply PWB is over-heated causing +24 VDC problems.

Future Preventative Maintenance: Notes:
The current through J1-1 and pin 1 of the mating connector is excessive and over time will tarnish the pin. The NAS43 Low voltage assembly, containing the NAPS09 PWB, has been upgraded in production units to divide the current into more pins. Field units can be exchanged to the latest revision. Alternatively, customers can implement a minor wiring change to improve current distribution. Contact customer service for details.

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