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Poly Planar LLC 520 McCormick Dr. Glen Burnie MD. 21061 410-761-4000 

www.polyplanar.com 

11 

Troubleshooting: 

 

No Audio, Inside door LED off 

1.  Make sure the control panel is on. 
2.  Make sure the Blue remote wired is switched to 12 volts. 
3.  Make sure the inline fuse is not blown. (Red wire) 
4.  Check that power wires are getting 12 volts from battery. 

 
No Audio, Inside door LED on 

1.  Make sure the control panel is not in MUTE mode. 
2.  Make sure the volume is up. 
3.  Check that speaker outputs are not shorted to ground. 
4.  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. 

 

Radio Keeps Blowing Fuse 

1.  B and 

– reversed at power leads. 

2.  Incorrect or shorted wiring. 
3.  Too many speakers or shorted speaker voice coil. 

 

Whining Noise  

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 radio wires away from other high current 

equipment wires. 

4.  Add a noise filter or ground-loop isolator if all else fails. 

 
Radio Unresponsive  

Open the door and press the reset button located under the EJECT 
button.  

Содержание MRD-70

Страница 1: ...hat also functions as a network audio source with Poly Planar s other audio network products Features AM FM CD CD R CD RW MP3 Source Unit Sealed chassis optimized for wet environments Anti skip memory...

Страница 2: ...Poly Planar LLC 520 McCormick Dr Glen Burnie MD 21061 410 761 4000 www polyplanar com 2 Controls and Connections Eject CD Reset Latch Line Out DIN Cable Speakers Power Auxiliary Inputs Antenna...

Страница 3: ...t this wire to a switched 12V source such as an ignition or accessory switch This connection must be able to supply 7amps of current Yellow Wire Connect this wire to a constant 12V source This retains...

Страница 4: ...duits The blue connector cap ends can be discarded if a smaller diameter is required such as a Pod mount Use shrink tube to seal the connections Connector cap ends removed Before drilling holes for ca...

Страница 5: ...Scan 2 Intercom Switch 11 Audio Controls 3 Presets 1 6 12 Audio Source Select 4 Display Options 13 Power On Off 5 Tune Track Up 14 Mute 6 Tune Track Down 15 Amplifier Source Select 7 AM FM Band Preset...

Страница 6: ...tercom volume up or down See Volume 9 The Master zone intercom volume is set using a potentiometer on the RT 20 Router See RT 20 Instructions 3 Presets Tune to a desired AM FM or Satellite Radio optio...

Страница 7: ...an through the preset stations and press again to stop the scan Press and hold to automatically assign presets to the current bank starting with the next station found 11 Audio Controls Pressing this...

Страница 8: ...reached release the button The unit remains in manual tune for 3 seconds after the button is released so you can still fine tune with additional button presses After 3 seconds the seek mode is re enab...

Страница 9: ...Press and hold REPEAT to repeat the current album Unit will display DPT Press preset 4 to alternately pause and play the CD Press Album presets 5 6 to change Album Folders on MP3 WMA CD ROM discs Usi...

Страница 10: ...l 100 3 Stereo FM1 P1 Vol 15 Frequency Band Preset Bank Preset Stereo Signal Present Volume Level AM FM Tuner Screen Trk 07 4m 49s CD Vol 15 Track Elapsed Time Volume Level CD Player Screen Aux Input...

Страница 11: ...r 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 th...

Страница 12: ...C Idle Current no signal 10 mA Maximum current draw full power 7 A Remote wire current 4 mA WARRANTY Poly Planar marine audio systems are warranted to be free of defects in materials and workmanship f...

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