Poly Planar Group LLC - 520 McCormick Dr. - Glen Burnie MD 21061 - 410-761-4000
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Controls, Input and Output Cables:
The switches and gain settings are located behind a watertight plug, which
also lights up when the amplifier is on. Be sure to replace the plug when
finished with adjustments
1) Input A Level. This rotary control selects the input sensitivity of the
amplifier’s RCA input (#4). Often referred to as Gain Control
2) Pilot Lamp: (Green) Illuminates when MZ100 is operating.
3) Equalization: These DIP switches are used to set one of eight different
equalization settings as shown on page 5.
4) Input A: Stereo RCA audio input for connecting other audio devices
5) Volume Control: Plug for the waterproof remote volume control. When
installed, this control will turn off the MZ100 Amp when turned all the way
down.
6) Audio System Connection: This plug is used for hooking the MZ-100 to
an extended poly-planar audio network using an RT20 System Router.
7) Control Panel Connection: This plug is used for hooking the MZ-100 to
poly-planar displays and control panels.
Figure 6 – Amplifier Switch and Gain settings
Left Panel View
Poly Planar Group LLC - 520 McCormick Dr. - Glen Burnie MD 21061 - 410-761-4000
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Troubleshooting:
No Audio, Green LED Off
1. Make sure the Blue remote wired is switched to 12 volts.
2. Make sure the inline fuse is not blown. (Red wire)
3. Check that power wires are getting 12 volts from battery.
No Audio, Green LED On
1. Check that speaker outputs are not shorted to ground.
2. Make sure speakers are connected
Distorted Audio / Audio Cycles on & Off
1. Make sure speaker wires are not shorted together.
2. Power voltage too low or too high.
3. Input signal level too high. Turn down.
4. Power wire gauge too small. Use at least 14AWG wire.
Low Bass Output
Speakers are wired out of phase. Check polarity of wires to the
speakers.
Amplifier Keeps Blowing Fuse
1. Battery + and – reversed at power leads.
2. Incorrect or shorted wiring.
3. Too many speakers or shorted speaker voice coil.
Whining Noise from Speakers
1. Bad ground connection. Confirm that the black wire returns to battery
ground with at least a 14AWG wire.
2. Do not share grounds or power connections with other power electronic
equipment such as motors, pumps, and VHF radios.
3. Be careful to route all amplifier wires away from other high current
equipment wires.
4. Add a noise filter or ground-loop isolator if all else fails.
WARRANTY
Poly-Planar marine audio systems are warranted to be free of defects in materials and
workmanship for a period of two years. Warranty is subject to proper installation and
operation within published specifications. Poly-Planar will repair or replace, at its
discretion, any unit returned prepaid to its factory and determined to be defective. Poly-
Planar Inc. is not liable for consequential damages.
