Ashly MA-250.4 Посібник з експлуатації - Сторінка 10
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MA Amplifier • Operating Manual
6
Troubleshooting
No AC Power
•
Is the detachable AC power cord
properly installed? Is it plugged into a
known live outlet?
•
Has the power switch been disabled?
No Amplifier Output
•
Is the amplifier in Standby Mode?
•
Is there signal getting to the amplifier?
•
Is the input signal properly wired?
•
Are output connectors properly wired?
•
Are front panel or VC remote control
attenuators turned down?
•
Is the Amplifier in Protect Mode? (see
table)
Attenuators Don't Work
•
Have the front panel controls been
disabled using the rear panel DIP
switch?
Still Not Working?
•
Contact Ashly technical support at
1-800-872-0010 x124, or email
Protect Mode - Front Panel LED Error Codes:
Protect Mode Fault Description
Amp Power Module Channel Protect /ch
††
Channel Thermal Protect /ch
†
Power Supply Thermal Protect (all 4)
†
Power Supply Out Of Range (all 4)
††
*Amp Channel DC Protect /ch
*Amp Channel Over-Temperature /ch
*Power Supply Over-Temperature (all 4)
*Power Supply Rails Too High (all 4)
Micro-Controller Over-Temperature
††
(all 4)
Amp Channel Thermal Protect /ch
†
Power Supply Thermal Protect (all 4)
†
Power Supply Out Of Range (all 4)
††
*Amp Channel DC Protect /ch
*Amp Channel Over-Temperature /ch
*Power Supply Over-Temperature (all 4)
*Power Supply Rails Too High (all 4)
Micro-Controller Over-Temperature
††
(all 4)
Amp still passes audio (unless amp is in Standby Mode), enacts countermeasures, automatic recovery
†
Amp mutes until fault clears, automatic recovery
††
* Non-recoverable fault, must reset Amp by cycling AC power
Power
Protect
Fault Pin
Clip/Mute
LED
LED
Output
LED
On
Low (0)
On
High (1)
On
High (1)
On
Low (0)
On
Low (0)
On
Low (0)
On
Low (0)
On
Low (0)
On
Low (0)
Standby
High (1)
Standby
High (1)
Standby
Low (0)
Standby
Low (0)
Standby
Low (0)
Standby
Low (0)
Standby
Low (0)
Standby
Low (0)
Signal
Current
Temp
LED
LED
LED
10