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User's Manual
c)
The LED stays permanently red, if...
...the protection circuitry of the integrated power amplifier cuts in and as a
result, no further signal reaches the speaker (Protect Mode).
The protection circuitry switches off the integrated power amplifier,...
−
...if the temperature of the amplifier module is too high. As soon as
the temperature falls below the critical value, the amplifier module is
switched on again automatically. Excessive temperatures can be
caused for example by inadequate ventilation of the heat sink. Make
sure that the heat sinks are not covered or positioned directly against a
wall.
−
...if the output impedance is too low or in the case of a short circuit,
caused for example by a defective chassis or a faulty component on
the crossover.
−
...if the amplifier has an internal fault. The SP amplifier module checks
that all is functioning correctly during operation. As soon as a fault be-
comes apparent, the module switches into protect mode. If only one
module has a fault, the input signal is attenuated by 70 dB, to prevent
damage to the other module.
Measures to be taken when LED is red:
Fault
LED remains red or flickers
continually during opera-
tion.
No
output
signal,
shows red in spite of re-
duced mixer level.
No output signal, LED stays
red after cooling down.
Output signal is too low, no
bass frequencies or no high
frequencies.
7) AC MAINS 'IN'
Connect this PowerCon socket using the mains cable supplied to a max. 16 A fused
mains socket, paying particular attention to the stated mains voltage! Connection
to an incorrect mains voltage can result in irreparable damage!
8) AC MAINS 'OUT'
Socket for connection to further equipment such as further speakers with SP mod-
ule. Use only connection cables, which conform to your national safety regul
Use only connection cables, which conform to your national safety regul
Use only connection cables, which conform to your national safety regul
Use only connection cables, which conform to your national safety regula- a- a- a-
tions.
tions.
tions.
tions.
Maximum power consumption:
KLING & FREITAG GMBH ©2003 - 2006
Measure
Reduce output level on mixer until the
LED goes out or flickers only occasion-
ally
LED
Allow to cool. The amplifier module
switches itself on after a few minutes.
Provide sufficient ventilation.
Have loudspeaker checked by
authorized service technician.
Have loudspeaker checked by
authorized service technician.
230 V: 10 A / 2300 W
110 V: 10 A / 1150 W
Version 4.1, 19.06.2006
LINE 212-6 - SP / LINE 212-9 - SP
Function
Limiter
Temperature
protection
Other pro-
tection
Other pro-
tection
Important
Warning
Page 12 of 45
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