Power Module Leds (Model 9820-45M) - Paradyne 9820 User Manual

Monitoring

Power Module LEDs (Model 9820-45M)

6-10
Each power module has a green LED which remains lit while power is applied
and the power module is functioning.
When the yellow front panel System PWR LED is lit, one of the power modules
has failed. The failed power module can be identified from the back of the DSU
by its unlit LED.
Table 6-8. Power Module Troubleshooting
Configuration Symptom
One Power No front panel LEDs are
Module lit.
Two Power
No front panel LEDs are
Modules
lit.
The front panel System
PWR LED is lit.
June 2000
What to Do
(in order, if problem persists)
1. Verify that the receptacle in use
provides 120 Vac.
2. Verify that the power module switch is
in the On position.
3. Replace the power module. See
Replacing a Power Module
Chapter 12, Hardware Maintenance .
4. Call your service representative.
1. Verify that the receptacles in use
provide 120 Vac.
2. Verify that the power module switches
are in the On position.
3. Replace the power modules. See
Replacing a Power Module
Chapter 12, Hardware Maintenance .
4. Call your service representative.
1. Check the power module LEDs from the
back of the unit and replace the failed
power module (the one whose LED is
Replacing a Power Module
off). See
Chapter 12, Hardware Maintenance .
2. Call your service representative.
in
in
in
9820-A2-GB20-20