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Ham Radio CD-ROM (Emerald Software) (1995).ISO
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tr7950.1
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1990-09-12
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1KB
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29 lines
TR7950.1
CIRCUIT MODIFICATION FOR KENWOOD TR7930/7950 TRANSCEIVER
FOR PACKET/RTTY OPERATION
BY: WA4IXN
THIS MODIFICATION PROVIDES CONTROLABLE AUDIO OUTPUT
TO PIN 5 OF THE MIC CONNECTOR FOR SINGLE PLUG PACKET/
RTTY OPERATION.
REMOVE TOP COVER OF TRANSCEIVER AND CAREFULLY DISCONNECT
SPEAKER LEAD PLUG FROM "RX UNIT" BOARD.
LOCATE PLUGS"J-13" ON THE RIGHT FRONT OF THE "RX UNIT"
BOARD AND "J-18" ON THE LEFT REAR SIDE OF THE BOARD.
NOTICE WHICH WIRE GOES TO PIN "8-M" ON "J-13" AND TO PIN #5
ON THE MIC CONNECTOR.
REMOVE PLUG "J-13" FROM THE BOARD AND LOCATE THE SPRING
TAB ON THE SIDE OF THE PLUG THAT HOLDS THE "8-M" CONN-
ECTOR IN PLACE.
USING A SMALL AWL OR POINTED TOOL, PRESS THE TAB DOWN
AND CAREFULLY PULL THE "8-M" CONNECTOR FROM THE PLUG.
WORK THE WIRE FROM THE HARNESS SO IT WILL REACH BACK
ALONG THE LEFT SIDE OF THE BOARD TO PLUG "J-18".
USING THE AWL OR SMALL POINTED TOOL, CAREFULLY SPREAD
THE "8-M" CONNECTOR A SLIGHT AMOUNT SO IT CAN BE FITTED
LIKE A SLEEVE OVER ANOTHER CONNECTOR OF THE SAME SIZE.
LOCATE TERMINAL "AP" ON PLUG "J-18".
CONTINUED IN FILE TR7950.3