ESX Quantum QM500.1 Benutzerhandbuch Seite 21

Malfunction: no function
Reason:
1. The power supply connection of the device is not correct
2. The cables have no mechanical or electrical contact
3. The remote turn-on connection from the head unit to the amplifier is not correct
4. Defective Fuses. In case of replacing the fuses, ensure the correct fuse rating
Malfunction: no signal on loudspeakers, but the POWER/PROTECT LED lights up blue
Reason:
1. The connections of the speakers or the RCA audio cables are not correct
2. The speaker cables or the RCA audio cables are defective
3. The loudspeakers are defective
4. SUB SONIC controller is adjusted to high
5. No signal from the head unit
Malfunction: one or more channels/controllers are without function / faulty stereo stage
Reason:
1. The balance or fader controller of the head unit is not in the center-position
2. The connections of the speakers are not correct
3. The loudspeakers are defective
4. SUB SONIC controller is adjusted to high
Malfunction: distortions on the loudspeakers
Reason:
1. The loudspeakers are overloaded
Malfunction: No bass or stereo sound
Reason:
1. Interchange of loudspeaker cable polarity
2. The RCA audio cables are loose or defective
Malfunction: amplifier runs into protection mode (POWER/PROTECT LED lights up red)
Reason:
1. Short circuit on the loudspeakers or cables
2. Overheated by too low speaker impedance
3. Insufficient air circulation by a inappropriate mounting position of the amplifier
4. Overloaded by insufficient power supply (too small profile section on the power cables)
Malfunction: hiss or white noise on the loudspeakers
Reason:
1. The level controllers are turned up to loud
2. The treble controller on the head unit is turned up
3. The speaker cables or the RCA audio cables are defective
4. The hissing is caused by the head unit
TROUBLE SHOOTING
Remedy:
Recheck
Recheck
Recheck
Replace Fuses
Remedy:
Recheck
Replace cables
Replace speakers
Turn down controller
Check head unit settings
Remedy:
Turn to center-position
Recheck
Replace speakers
Turn down controller
Remedy:
Turn down the level
Turn down the level on the head unit
Switch off loudness on the head unit
Reset bass EQ on the head unit
Remedy:
Reconnect
Reconnect or replace the cables
Remedy:
Reconnect
Choose a higher impedance
Use a new speaker setup
Change the mounting position
Ensure air circulation
Use a bigger profile section
Remedy:
Turn down the level
Turn down the level on the head unit
Replacing the cables
Check the head unit
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