EST EST3X - Page 200

Chapter 7: Service and troubleshooting
190 EST3X Technical Reference Manual
Address
Label Source Description
0617
Power Supply Fail 3X-NET
RS-485
• The cables between the power supply
and CPU are loose or missing
• The power supply is defective
0619
Charger Over
Current
3X-NET
RS-485
• The cables between the power supply
and CPU are loose or missing
• The power supply or CPU is defective
0620
Battery Int
Resistance
3X-NET
RS-485
The battery is degraded
0620
Demux Audio Input 3-ZAxx The digitized audio data is missing
0620
Waiting for SDU
Download
3-MODCOM A database download from the 3-SDU is in
progress or incomplete
0621
NAC Pump Fault 3X-NET
RS-485
• The charge pump for the NACs is in
trouble state
• The NAC
charge pump voltage is below
30V, preventing the NACs from
operating
• The power supply is defective
0621
Amp Overcurrent 3-ZAxx • A short is detected on the circuit
• The speaker wattage tap setting
exceeds the output rating of the
amplifier
• The 70 VRMS jumper setting is being
used with 25 VRMS speakers
0622
Primary Audio
Output DC
3-ZAxx • There is an open DC NAC circuit, or a
missing or wrong value EOL resistor
• A short is detected on the a DC NAC
circuit
0622
Rail Over Current 3X-NET
RS-485
The power supply has detected an over
current condition (> 10A)
0623
Battery Charger
Fault
3X-NET
RS-485
The charger may not be able to charge the
batteries
0623
Primary Audio
Output Analog
3-ZAxx • There is an open audio NAC circuit, or
a
missing or wrong value EOL resistor
• A short is detected on the audio NAC
circuit
• The output voltage jumper is set wrong
0624
Application Fault 3X-NET
RS-485
The power supply detected a fault while
testing its internal subsystems