Cleaning And Maintenance; Technical Specifications - Velleman HQ-POWER VPA2100U1 Notice D'emploi

• 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
No power.
No sound.
Noise.
Fan does not work; LEDs
do not light.
PROTECT LED stays lit.

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
Fuse
Power Output
Frequency Range
S/N Ratio
Input Sensitivity
Input Impedance
Input Connectors
Output Connectors
Protection Circuits
Controls
LED Indicators SIGNAL
LIMIT
POWER
PROTECT
Dimensions
Weight
29/07/2011
POSSIBLE CAUSE
• The power cord is not connected. • Check the power cord and any
• 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. • Connect the power cord.
• 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)
Stereo 8 ohms 70W
Stereo 4 ohms 100W
25Hz ~ 25KHz, ± 1dB ~ 3dB
> 100dB
0.77V
10K ohms unbalanced
2 x ¼" jack (6.3mm)
2 x Speakon® (stereo)
full short-circuit, DC and terminal overload protection;
noise-free ON/OFF; current limiter
power switch, input level control for each channel
2 x green LED
2 x red LED
1 x blue LED
1 x red LED
483 x 320 x 45mm
8kg
VPA2100U1
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.
• 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.
8
Rev. 01
SOLUTION
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