Galaxy
DX Radios DX77HML
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Device Location Diagram
TR 1......NB Amp TR 2......NB Amp TR 3......NB Amp TR 4......NB AGC TR 5......NB Pulse Amp TR 6......NB Pulse Amp TR 7......NB Shunt Switch TR 8......2nd RX Mixer TR 9......AM/FM IF Amp TR 10....AM/FM IF Amp TR 11....AM/FM IF Amp TR 12....SSB Switch & AGC TR 13....AM/FM S-Meter TR 14....SSB/CW S-Meter TR 15....AF Preamp TR 16....Squelch Switch TR 17....RX RF Amp TR 18....1st RX Mixer TR 19....1st SSB IF Amp TR 20....2nd SSB IF Amp TR 21....3rd SSB IF Amp TR 22....4th SSB IF Amp TR 23....AM Det. Switch TR 24....PLL Ref. Osc. TR 25....VCO TR 26....VCO Buffer TR 30....Carrier Osc. TR 31....SSB Switch TR 32....AMC Shunt TR 33....Roger Beep Osc. TR 34....AMC/ALC Amp TR 36....RX Voltage Switch TR 37....RX Voltage Switch TR 38....TX Voltage Switch TR 39....Talkback Switch TR 40....Voltage Reg. TR 41....Voltage Reg. TR 42....AF Preamp TR 43....RF Final Amp TR 44....RF Driver Amp TR 45....RF Predriver Amp TR 46....RF Amp And Buffer TR 47....ALC Sense Amp TR 49....AM Mod. Amp TR 50....AM Mod. Amp TR 51....AM Mod. Amp TR 52....SSB Switch TR 53....AMC Amp TR 56....RF Final Amp |
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IC 1......Squelch & AGC Amp IC 2......FM Det. IC 3......Balance Mod. IC 4......Mike Amp & TR Switch IC 5......PLL Synth. |
IC
6.......PLL Bit Adder |
Disclaimer: Although the greatest care has been taken while compiling these documents,
we cannot guarantee that the instructions will work on every radio presented.