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10. Troubleshooting
PROBLEM
No power.
No sound.
Noise.
Fan does not work; LEDs do not
light.
PROTECT LED stays lit.
11. Cleaning and Maintenance:
Have a qualified technician carry out the electric connection!
1. All screws should be tightened and free of corrosion.
2. The housing, visible parts, mounting supports and the installation location (e.g. ceiling, suspension, trussing)
should not be deformed, modified or tampered with e.g. do not drill extra holes in mounting supports, do not
change the location of the connections ...
3. Moving mechanic parts must not show any signs of wear and tear.
4. The electric power supply cables must not show any damage. Have a qualified technician maintain the device.
5. Disconnect the device from the mains prior to maintenance activities.
6. Wipe the device regularly with a moist, lint-free cloth. Do not use alcohol or solvents.
7. There are no user-serviceable parts.
8. Contact your dealer for spare parts if necessary.
12. Technical Specifications
Power Supply
Fuse
Power Output
Stereo 8 ohms
Stereo 4 ohms
Frequency Range
S/N Ratio
Input Sensitivity
Input Impedance
Input Connectors
Output Connectors
VPA2100U1
POSSIBLE CAUSE
• The power cord is not connected.
• The power cord of the respective
device is not connected properly or
not connected at all.
• The connection socket or the plug
is dirty.
• The input signal is too strong.
• The power cord is not connected.
• Inputs receive DC voltage.
• Overheating due to clogged fan
grille.
• Impedance of speakers too low.
• Short circuit in speaker connection
or in speaker.
• Technical default of amplifier
230VAC / 50Hz or 115VAC / 60Hz selectable
230VAC: T2A (order code: FF2.5N)
115VAC: T4A (order code: FF4N)
70W
100W
25Hz ~ 25KHz, ± 1dB ~ 3dB
> 100dB
0.77V
10K ohms unbalanced
2 x ¼" jack (6.3mm)
2 x Speakon
(stereo)
®
7
SOLUTION
• Check the power cord and any
extension cables.
• Check if the power cord and the
plugs are tightly connected with the
sockets.
• Clean the socket and/or the plug.
• Reduce the input signal with the
gain control.
• Connect the power cord.
• Switch amplifier off and have the
device checked by a service
technician.
• Clean the fan grille.
• Connect other speakers.
• Check speakers.
• Switch amplifier off and have the
device by a service technician.
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