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VPA600MB VELLEMAN
10
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 max. 230VAC / 50Hz
Fuse T10A (order code FF10N)
Output Power
Stereo 8 ohms 600W
Stereo 4 ohms 900W
Stereo 2 ohms 1100W
8 ohms bridged 1800W
1KHz 0.1% THD 4 ohms 2000W
Frequency Range 20 ~ 20000Hz, ± 0.1dB
Damping Factor 500:1
S/N Ratio > 105dB
THD (Total Harmonic Distortion)
≤ 0.01% @ 8 ohms – 1kHz
IMD (Intermodulation Distortion) ≤ 0.01% @ 8 ohms – 1kHz
Have a qualified technician carry out the electric connection
!