Galaxy DX Radios DX2527
Documentation Project
CBTricks.com

PLL Alignment  
PLL Alignment Locations

SETTINGS CONNECTION
ADJUST
ADJUST FOR
VOLTAGE REGULATOR:
(EPTOSSB62A)		 Connect Voltmeter positive lead to power switch. Connect Voltmeter negitive lead to PCB ground.
VR601
Adjust for 13.8VDC
VCO & OSC: 
Frequency: 28.0000 MHz
MIC Gain: Fully counter-clockwise
RF Power. Fully clockwise
RF Gain: Fully clockwise
Clarifier: 12 o'clock
Vol : Comfortable level
Squelch: Fully counter-clockwise
Mode selector - AM		 Disconnect shorting board from test points TP1, TP2 and TP3
 

Connect Freq. Counter to L61 

 
 

VC1
 
 

Adjust for reading of 
10.240MHz ±10 Hz.
Connect Oscilloscope to L61
L4
Adjust for Max. 
Connect a Freq. Counter to L65
VC2
Adjust for 17.305MHz ±10 Hz.
Connect a Freq. Counter to L65
VR21
Key Transmitter and adjust for 
17.305MHz ±10 Hz.
Connect Voltmeter to IC7 Pin3
L21
Adjust for 
1.2VDC±0.1 VDC
Connect Voltmeter to J13
L17
Adjust for 
2.0VDC±0.1 VDC
Connect Oscilloscope to L65
L19
Adjust for Max.
Connect Freq. Counter to 
IC13 pin8
L23
Very carefully adjust for 
11.350MHz ±10 Hz.
Connect Oscilloscope to 
IC17 pin13 
L24
L25
Very carefully adjust and for best waveform
AM TX OSC:
Same as above		 Connect a frequency counter to cathode of D45 
L27
Key transmitter and adjust for 
10.6950 MHz ±10 Hz.
USB TX OSC:
Adjust VR7 fully clockwise. 
Put mode selector on USB. 		 Leave frequency counter connected to D45 
L29
Key transmitter and adjust for 
10.6925 MHz ±10 Hz.
LSB TX OSC:
Put mode selector in LSB.
After adjustment return VR7 to approximate middle of rotation
Replace shorting board to test points TP1, TP2 and TP3 		 Leave frequency counter connected to D45 
L28
Key transmitter and adjust for 
10.6975 MHz ±10 Hz.
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we cannot guarantee that the instructions will work on every radio presented.