Ranger
RCI-2980WX
Documentation Project
CBTricks.com
Frequency Conversion
1.
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Find J28. (forward edge, center of main PCB).
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2.
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Move jumper from pins 1-2 to 2-3.
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3.
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Find J4 (about 2 inches behind mike jack, 2 inches back from fwd edge of main pcb ).
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4.
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Unplug blue-black-white
plug, and plug into J2 ( near J28 ).
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5.
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On the solder side
of the main PCB, remove the 100 ohm resistor between pins 15 and 16
of IC5.
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6.
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To prevent the digital
frequency display from "jumping", the VCO (steering voltage)
MUST BE re-aligned. Disconnect the "short PCB" from TP7, TP8,
and TP9. Set radio to Band 6, CH 40 AM RX mode, set the +10KHz switch
to OFF position, connect multimeter to TP2, connect oscilloscope to
TP3.
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7.
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Reconnect the "short PCB" from TP7, TP8, and TP9.
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Disclaimer: Although the greatest care has been taken while compiling these documents,
we cannot guarantee that the instructions will work on every radio presented.