GME GR100 - Manual (Page 12)

Page 12 Instruction Manual GR100
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the GR100 is suitable for either negative or positive ground systems .
note: the GR100 has an over voltage detector to indicate when excessive voltage is
being applied to the radio . the over voltage detector is triggered when the voltage
being applied to the power leads exceeds 18 Volts DC . If this happens, the words
‘hi dc’ will flash on the display . If the voltage exceeds 21 Volts DC, the radio will
automatically shut down .
referring to the wiring diagram
1 . Connect the ReD fused wire directly to the positive terminal of the battery or to a
point in the vessels electrical wiring that provides a +12 Volt connection .
2 . Connect the Black negative wire directly to the battery’s negative terminal or to a
negative point in the vessels wiring .
Speaker Connections
note: For simple installations, the GR100 can be used without external speakers if
required . the GR100’s internal monitor speaker can provide good quality mono sound
suitable for many applications . For full stereo sound you will need to connect a pair of
external speakers . the GR100’s internal monitor speaker is automatically disconnected
when the external speakers are plugged in .