1. Tel has priority over all inputs.
2. MIC 1 is second priority, adjust mute electric
potential can override other input signal except
tel signal.
3. It is the same level of MIC 1, when one of the
two port connect with MIC, another conn ect
MIC port is in vain.
MUTE FUNCTION
1 Machine is in protection
condition in case of high
temperature
2 Wrong wire connection
OPERATION ATTENTION
The four output connectors only can choose two
connectors work together. If voltage is 70V/100V,
the speakers must be with transformer and make
sure the total power wattage of speaker is 15%
less than the power wattage of amplifier.
GUIDANCE OF EXCLUDING ERRORS
No voice output in
normal condition
All the wires are
connected well
but no voice output
Cause
1 No power or wrong
plug connection
2 Fuse is burned
3 Volume is town off
4 No input signal
Power on but ala-
rming signal
1 Overloading or short
circuit
2 Voltage is not stable,
too high or low
Phenomena
5. MACHINE OPERATION
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