He tried the usual remedies: a master reset, re-flashing the firmware, sacrificing a tin of Altoids to the RF gods. Nothing. His voice, usually a calm baritone over the air, was now a tense murmur bouncing off the log walls.
He switched the PDF to the . The zoom feature was his best friend now. He traced the voltage rail from the battery terminals, through the fuse—which tested fine—to the DC-DC converter circuit. On page 52, he found the culprit in the "Voltage Check Table." Pin 4 of the regulator IC should have been 5 volts. His multimeter read zero. icom ic-705 service manual pdf
Utilizes direct conversion for frequencies below 25 MHz to minimize internal noise. He tried the usual remedies: a master reset,