T+A P 1260 R Mode D'emploi page 41

Problem: No output signal at the loudspeakers;
the LEDs above the 
buttons
PROTECTION circuit has tripped).
The PROTECTION circuit has tripped due
Cause 1:
to overheating or overloading.
Reduce volume and wait for about
Remedy:
20 seconds. If the unit does not switch on
again automatically, it has become too hot
and should be left switched off for a few
minutes to cool down.
Short-circuit in the speaker leads, e. g.
Cause 2:
stray wire ends touching at the speaker
terminals, or mechanical damage to the
cables.
Check speaker leads and terminals, twist
Remedy:
wire ends
damaged cables.
Overloading due to poor earth contact.
Cause 3:
Disconnect input cable and wait to see if
Remedy:
the amplifier switches back on again; if so,
check the input lead and replace if
necessary.
Problem: Unit switches off repeatedly at fairly
high volume levels.
Overheating due to heat build-up.
Cause 1:
Set up the unit in such a way that an
Remedy:
unobstructed
guaranteed.
Overheating
Cause 2:
loudspeaker impedance.
Use only loudspeakers of at least 4 Ω
Remedy:
impedance (DIN rating). That means a
minimum impedance of > 3.2 Ω.
Problem: Flat sound image, insufficient bass
response.
The loudspeaker cables are connected
Cause:
with reversed polarity.
Check the speaker connections at the
Remedy:
loudspeakers
speaker terminals; correct if necessary.
 and  
   
flash alternately
together neatly, replace
flow of cooling air
through insufficient
and at the amplifier's
(the
is
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