ARMA-C250-CRM
44
7.4
MAIN FAULT DIAGNOSIS
Description of Problem
Probable Cause
Refer to Section
Power is On but
Power On LED is off.
No line voltage at the AC input.
The secondary power supply has failed.
Circuit breaker has failed
7.5.1
7.5.5
7.5.1
RF is On but
RF On Led is off.
The RF output level is below set threshold.
The attenuation setting is too high.
The amplifier is muted.
7.8.1, 7.8.2
7.8.2
7.6.4, 7.6.5
Alarm LED is on.
The RF output level is too low.
The amplifier has overheated but not shutdown
7.6.1- 7.6.3
Fault LED is on.
The amplifier has overheated & is in thermal shutdown.
The Power Amplifier has failed.
The Main Power Supply has failed.
The Controller has failed
7.7
7.10
7.5.3, 7.5.4
7.10
HIGH TEMP is displayed.
The amplifier internal temperature has exceeded 70° C.
7.7
LOW CURR is displayed.
The Power Amplifier has failed.
7.10
HIGH CURR is displayed.
The Power Amplifier has failed.
7.10
LOW VOLT is displayed.
The Power Amplifier has failed.
The Main Power Supply has failed.
The Secondary Power Supply has failed.
7.10
7.5.4
7.5.5
HIGH VOLT is displayed.
The Main Power Supply has failed.
7.5.4
The fan non-functional.
The fan has failed, see Note per 2.2.
7.10
Mute LED is on but not from
the front panel.
The Discrete Interface RF Mute line is high or the U-link is
not installed.
7.6.5
The unit cannot be controlled
from the front panel.
The unit is set for Remote operation.
5.4
7.5
POWER SYSTEM FAULT DIAGNOSIS
1.
Verify AC power feed.
2.
Verify power on led is on.
3.
Verify fan operation.
4.
Verify voltage on main power supply: +12V ± 0.5V. Refer to
replacement.
5.
Verify voltage on secondary power supply:
P12-2 to P12-1 is +15V ± 0.5V.
Содержание ARMA-C250-CRM
Страница 13: ...ARMA C250 CRM 12 Figure 1 Product Outline redundant system front and rear views...
Страница 14: ...ARMA C250 CRM 13 Figure 2 Waveguide Connections top view side view...
Страница 56: ...ARMA C250 CRM 55 Figure 12 Product Outline single unit...
Страница 57: ...ARMA C250 CRM 56 Figure 13 3 D View of the Redundant System in rack cabinet...
Страница 58: ...ARMA C250 CRM 57 Figure 14 Enlarged 3 D View of the Redundant System in rack cabinet...