t&mSystems Project 120MP - 240MP - Manual (Page 8)

4. OPERATION METHOD
Among the 4 output terminals, only COM and one of others are used. When 70V and 100V are used, the
speaker should be with line transformer, and the total power of speakers should be less than the output rating.
Mic 1 has the highest priority of input jack, whose signal input will restrain other signal inputs.
The restraining degree can be adjusted by the mute control on the back panel of the amplifier. The adjust range
is 0-30 dB.
4.1 OPERATION METHOD
4.2 MUTE FUNCTION
70V 100V COM 4-16 70V 100V COM 4-16
100V LINE
70V 100V COM 4-16
(PROJECT120MP)
(PROJECT240MP) 40
20
70V LINE 4-16
(PROJECT120MP)
(PROJECT240MP) 83
41
Total impedance Total impedance
4.3.1 Cabinet should be safely grounded. The cabinet is already connected with the GND of the power cord.
Pls connect the power plug with the grounded power grid.
4.3.2 After turning the switch on and inputting the signal, if abnormal indicator is flashing, there is short
trouble in the outlet line. In this situation, the power should be cut off. Re-power up after the removal of fault.
4.3 WARNINGS
5. CONNECTING METHOD
NOTE:
4~16 /70V/100V terminals cannot be used at the same time.
Impedance means the (load) impedance value of the whole speaker system.
Pls install the terminal cover after connection. With high voltage, never touch the speaker
terminal to avoid shock.
8