Rear Panel Description; Power Switch; Fuse; Ac Power Receptacle - Mackie SRM 150 User Manual

REAR PANEL DESCRIPTION

8. POWER Switch

Switch up to turn the SRM150 on, and switch down
to turn it off. Make sure the MAIN LEVEL [6] control is
down before you turn it on.
When the POWER switch is turned on, and the line-
cord is connected to an active AC Mains supply, the cool
blue LED on the front of the speaker glows to let you
know that you're ready to rock and roll.

9. FUSE

This is a resettable circuit breaker that monitors the
amount of current being drawn by the SRM150. Under
normal operating conditions, this should never pop. An
unusual condition may cause the breaker to pop, such
as a mains voltage surge occurring at the same time as a
peak amplifier output.
To reset the breaker:
• Turn the POWER [8] switch off and push the FUSE
switch to its UP position.
• Turn the POWER switch back on and the SRM150
should resume normal operation. If the circuit
breaker pops again, there may be something wrong
inside the SRM150. Refer to "Repair" on page 15.

10. AC Power Receptacle

This is a standard -prong IEC connector. Connect
the detachable linecord (included with your SRM150)
to the power receptacle, and plug the other end of the
linecord into an AC outlet. The SRM150 has a universal
power supply that can accept any AC voltage ranging
from 100VAC to 0 VAC. No need for voltage select
switches. It will work virtually anywhere in the world.
100V - 240V ~ 50/60Hz 45VA
C US
10
Note: If you happen to lose the AC linecord, replace-
ments are readily available at any office or computer
supply store. Always use a three-pin plug with a ground
pin.

11. THRU Connector

This is a male XLR connector that produces the main
signal just prior to the EQ [7] controls and the MAIN
LEVEL [6] control. The signal at the THRU connector
includes the input signals connected to channels 1-
[1/] and the MAIN IN [1] signal.
Use this connector to patch the signal from the
SRM150 to another SRM150 or other active loudspeaker
(like an SRM50 or SRM50), or to a mixer.

12. MIC/LINE Switch

The MIC/LINE switch affects the output level of the
THRU connector. Leave the switch out (LINE) when
connecting the THRU connector to another SRM150
or to a line-level input on a mixer. Push the switch in
(MIC) when connecting the THRU connector to a mi-
crophone input on a mixer or a stage snake.

13. MAIN IN

This is a Neutrik combo connector that accepts a
balanced line-level signal from an XLR connector or a
1/" TRS connector. The signal is mixed with the signals
from channels 1- on the main mix bus, just prior to
the THRU [11] output, EQ [7] controls and the MAIN
LEVEL [6] control.
POWER
FUSE
3
A
M
P
SRM150
THRU
LINE
MIC
MAIN IN