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ENGLISH
Malfunction: no function
Reason: Remedy:
1. The power supply connection of the device is not correct Recheck
2. The cables have no mechanical or electrical contact Recheck
3. The remote turn-on connection from the head unit to the amplier is not correct Recheck
4. Defective Fuses. In case of replacing the fuses, ensure the correct fuse rating Replace Fuses
Malfunction: no signal on loudspeakers, but the POWER/PROTECT LED lights up green
Reason: Remedy:
1. The connections of the speakers or the RCA audio cables are not correct Recheck
2. The speaker cables or the RCA audio cables are defective Replace cables
3. The loudspeakers are defective Replace speakers
4. HIGH PASS controller (Subsonic Mode) in LP/BP operation is adjusted to high Turn down controller
5. No signal from the head unit Check head unit settings
Malfunction: one or more channels/controllers are without function / faulty stereo stage
Reason: Remedy:
1. The balance or fader controller of the head unit is not in the center-position Turn to center-position
2. The connections of the speakers are not correct Recheck
3. The loudspeakers are defective Replace speakers
4. HIGH PASS controller (Subsonic Mode) in LP/BP operation is adjusted to high Turn down controller
5. COPY mode is activated and only the controllers of CH3/4 are working Set the CH1 / CH2 X-OVER switch
to FULL or HP
Malfunction: distortions on the loudspeakers
Reason: Remedy:
1. The loudspeakers are overloaded 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
Malfunction: No bass or stereo sound
Reason: Remedy:
1. Interchange of loudspeaker cable polarity Reconnect
2. The RCA audio cables are loose or defective Reconnect or replace the cables
Malfunction: amplier runs into protection mode (POWER/PROTECT LED lights up red)
Reason: Remedy:
1. Short circuit on the loudspeakers or cables Reconnect
2. Overheated by too low speaker impedance Choose a higher impedance
Use a new speaker setup
3. Insufcient air circulation by a inappropriate mounting position of the amplier Change the mounting position
Ensure air circulation
4. Overloaded by insufcient power supply (too small prole section on the power cables) Use a bigger prole section
Malfunction: hiss or white noise on the loudspeakers
Reason: Remedy:
1. The level controllers are turned up to loud Turn down the level
2. The treble controller on the head unit is turned up Turn down the level on the head unit
3. The speaker cables or the RCA audio cables are defective Replacing the cables
4. The hissing is caused by the head unit Check the head unit
TROUBLE SHOOTING
22


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