Galaxy DX Radios "Galaxy Plus"
Documentation Project

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PLL Alignment
See Alignment Locations

SETTINGS CONNECTION
ADJUST
ADJUST FOR
10.240 MHz PLL REFERENCE:
RX Mode, AM,
Freq. to 26.965MHz Band D
Fine and coarse clarifier control to center detent.
Remove TP7-TP9 jumper PCB.
Connect Frequency counter to IC5 Pin 4.
 
Check for 10.2400MHz ±200 Hz. If tolerance is beyond this, replace
X1 (10.240MHz).
VCO BUFFER:
RX Mode, AM,
Freq. to 26.965MHz Band D
Fine and coarse clarifier control to center detent.

Connect scope to TP3 (top bare lead of R74)

L18

Adjust for max. RF (0.80V p-p typical).

Connect scope to L22 secondary (bare lead of L50 ).
L22
Adjust for max. RF (2.0V p-p typical)
VCO:
RX Mode, AM,
Freq. to 26.965MHz Band D
Fine and coarse clarifier control to center detent.
Connect DC voltmeter to TP2 (top bare
lead of R116)
L17
Adjust for 3.20 VDC ±0.1 Vdc.
Recheck at 25.615MHz for approx 2.0V. and 28.305MHz for approx 5.0V.
PLL OFFSET OSCILLATOR:
RX Mode, AM,
Freq. to 26.965MHz Band D
Fine and coarse clarifier control to center detent.
Modes as indicated.
Connect Frequency Counter to TP3 (top bare lead of R74).

L19

AM: Adjust for 16.2700MHz ±20 Hz.

L20
USB: Adjust for 16.2725MHz ±20 Hz.
L21
LSB: Adjust for 16.2675MHz ±20 Hz.

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