Galaxy DX Radios DX2517 (MOSFET Final)
Documentation Project

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PLL Alignment
See Alignment Location

SETTINGS CONNECTION
ADJUST
ADJUST FOR
REGULATOR VOLTAGE:
RX Mode, AM, 

Band D, Ch. 1
Connect Voltmeter positive lead to power switch. 
Connect Voltmeter negative lead to PCB ground.
VR601 
Adjust for 14.3 VDC
10.240 MHz PLL REFERENCE:
RX Mode, AM, 

Band D, Ch. 1

Remove TP7-TP9 

Jumper PCB.
Connect Frequency counter
to IC3 Pin 4.
Check for 10.2400MHz ±200 Hz. If tolerance is beyond this, replace X1 (10.240MHz).
VCO OUTPUT:
RX Mode, AM, 

Band D, CH. 1 
Connect scope to TP3 
L15
Adjust for max. RF 
VCO VOLTAGE:
RX Mode, AM, 

Band D, CH. 1 
Connect DC voltmeter to TP2 
L14
Adjust for 2.75 VDC ±0.1 Vdc. 
Check Band A, CH. 1 for approx. 2.0V. and Band H. 

CH. 40 for approx. 6.0V.
PLL MIXER OSCILLATOR:
RX Mode, AM, 

Band D, CH. 1

Set Fine and coarse clarifier control to 
12 oclock position. 
Set clarifier switch 

to RX/TX
Connect Frequency Counter to TP3.
L17
AM: Adjust for 
16.2700MHz ±20 Hz.
L18
USB: Adjust for 
16.2725MHz ±20 Hz.
L19
LSB: Adjust for 
16.2675MHz ±20 Hz.
FREQUENCY COUNTER:
Set mode to AM RX

Band D, CH.1
VC1 on Counter PCB
Adjust VC1 on counter PCB for correct reading on display.

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we cannot guarantee that the instructions will work on every radio presented.