Citronic PLX2000 - Specifications and Troubleshooting; Technical Specifications; Troubleshooting Common Issues

With mixer (or other signal source) levels turned down, gradually increase the amplifier’s CH1 and CH2 gain
controls to the required level (normally full) and then gradually increase the signal level from the mixer until sound
can be heard through the speakers and then up to the required level.
During use, the LED indicators will show yellow to show that the channel is on, green if a signal is present and red if
the output is reaching clip level. If the red CLIP LEDs illuminate more than very briefly, reduce the volume until they
hardly light up at all.
If the internal protection circuitry detects a fault in the speakers or amp, the channel(s) will enter Protect Mode and a
red “PROTECT” LED will illuminate on the front panel to show this. Switch the amplifier off and check the entire
system (including leads) before powering up again. If still in Protect Mode, seek advice from qualified service
personnel.
Before powering down, turn CH1 and CH2 gain controls fully down to avoid loud noises when switching off.
SPECIFICATIONS
PLX2000
PL2800
PL3600
Power supply
230Vac 50/60Hz (IEC, 15A max.)
Output: RMS @ 2Ω
2 x 1000W
2 x 1400W
2 x 1800W
Output: RMS @ 4Ω
2 x 700W
2 x 1050W
2 x 1350W
Output: RMS @ 8Ω
2 x 400W
2 x 600W
2 x 800W
Bridge power: RMS @ 4Ω
1700W
2300W
2900W
Bridge power: RMS @ 8Ω
1250W
1750W
2300W
Input impedance
20kΩ
Frequency response
5Hz – 50kHz
S/N ratio
>105dB
THD
0.05%
Circuit protection
Short-circuit, DC, Overload, Boot-strap short test
Dimensions
88 x 482 x 453mm
Weight
22.5kg
25.0kg
26.0kg
Troubleshooting
No power light on front panel switch
Ensure IEC is connected to mains and mains lead is in good condition
Ensure mains outlet is switched on
Power light is on but no other LEDs and not
output
Check input signal and connection leads
Ensure CH1 and CH2 level controls are not turned fully down
Power light and Signal LEDs are lit but no
output
Check speaker cabinets are not blown and are in good working order
Check speaker leads are in good condition and connected properly
“PM” (Protect Mode) LED is lit and there is no
output
Switch off and disconnect from mains
Check speakers are in good working order and not shorted out (using a
multi-tester)
After checking all connected items, power up again
If still in Protect Mode, switch off again and refer to qualified service
personnel
Output is very distorted and “CLIP” LEDs are
lighting
Check speaker impedance is not below rated Ohms
Turn down Input level from audio source
Switch SENSITIVITY at rear to a higher voltage
Turn down CH1 and CH2 level controls
Output is working but at very low level
Ensure input source is at line level
Increase input level from audio source
Turn up CH1 and CH2 level controls
Switch SENSITIVITY at rear to a lower voltage
Note: for further troubleshooting, refer equipment to qualified service personnel for testing
© Citronic 2011