Galaxy DX Radios DX93T
Documentation Project

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PLL Alignment
See Alignment Locations


SETTINGS CONNECTION
ADJUST
ADJUST FOR
10.240 MHz PLL REFERENCE:
RX Mode, AM, 
Band E, Ch. 1
Connect Frequency counter to IC3 Pin 4.
 
Check for 10.2400MHz ±200 Hz. If tolerance is beyond this, replace X1 (10.240MHz).
VCO VOLTAGE:
RX Mode, AM, 
Band E, CH. 1
Connect DC voltmeter to TP2
L14
Adjust for 2.75 VDC ±0.1 
Check Band A, CH. 1 for approx. 2.0V. and 
Band H. CH. 40 for approx. 6.0V.
VCO OUTPUT:
RX Mode, AM, 
Band E, CH. 1 
Connect scope to TP3
L15
Adjust for max. RF
PLL MIXER OSCILLATOR:
RX Mode, AM, 
Band E, CH. 1
Set Fine and coarse clarifier control to 12 oclock position. 
Set clarifier switch to RX/TX
Connect Frequency Counter to TP3.
L20
AM: Adjust for 
16.2700MHz ±20 Hz.
L21
USB: Adjust for 
16.2725MHz ±20 Hz.
L22
LSB: Adjust for 
16.2675MHz ±20 Hz.
TX OFFSET FREQUENCY:
Set mode to LSB RX
Connect Frequency Counter to TP3.
VR7
Key TX; Adjust for 
16.2675MHz ±20 Hz.
FREQUENCY COUNTER:
Set mode to AM RX
Band E, CH.1
 
VC1 on Ch Sel / Counter PCB (EPT091V31Z)
Adjust VC1 on counter PCB for correct reading on frequency display.
 
FIXED CLARIFIER:
AM RX Mode
Band E, CH. 1
Set clarifier switch 
to OFF
 
VR907
on VR PCB (EPT091V91Z)
AM: Adjust for correct
reading on frequency
display

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