Velleman VPA2100U1 - Manual (Page 8)

VPA2100U1 Rev. 01
29/07/2011 © Velleman nv 8
• If you want to switch off the system, switch off the amplifier first and then the pre-amplifiers in
order to avoid transients on the speaker.
11. Troubleshooting
PROBLEM POSSIBLE CAUSE SOLUTION
No power. • The power cord is not connected. • Check the power cord and any
extension cables.
No sound. • The power cord of the respective
device is not connected properly
or not connected at all.
• The connection socket or the plug
is dirty.
• Check if the power cord and the
plugs are tightly connected with the
sockets.
• Clean the socket and/or the plug.
Noise. • The input signal is too strong. • Reduce the input signal with the
gain control.
Fan does not work; LEDs
do not light.
• The power cord is not connected. • Connect the power cord.
PROTECT LED stays lit. • 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
• 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.
12. Cleaning and maintenance
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.
13. Technical Specifications
Power Supply 230VAC / 50Hz or 115VAC / 60Hz selectable
Fuse
230VAC T2A (order code: FF2.5N)
115VAC T4A (order code: FF4N)
Power Output Stereo 8 ohms 70W
Stereo 4 ohms 100W
Frequency Range 25Hz ~ 25KHz, ± 1dB ~ 3dB
S/N Ratio > 100dB
Input Sensitivity 0.77V
Input Impedance 10K ohms unbalanced
Input Connectors 2 x ¼” jack (6.3mm)
Output Connectors 2 x Speakon® (stereo)
Protection Circuits full short-circuit, DC and terminal overload protection;
noise-free ON/OFF; current limiter
Controls power switch, input level control for each channel
LED Indicators SIGNAL 2 x green LED
LIMIT 2 x red LED
POWER 1 x blue LED
PROTECT 1 x red LED
Dimensions 483 x 320 x 45mm
Weight 8kg