Galaxy DX 979 Service Manual page 14

4.1.3 RECEIVER ALIGNMENT
ITEM
AM Sensitivity Set radio to CH 19 AM RX mode.
Set RF GAIN Fully Clockwise.
Set SQ Fully Counter Clockwise.
Set VOL Control at 2 o'clock.
Set NB/ANL switch to OFF position.
Set CLARIFIER Control to 12 o'clock.
Connect RF SG to antenna jack
Frequency 27.185 MHz, 1uV. Mod 30%.
Set radio to CH 40 AM RX mode.
RF SG setting 27.405 MHz.
Set radio to CH 1 AM RX mode.
RF SG setting 26.965 MHz.
USB Sensitivity Set radio to CH19 USB RX mode.
Set VOL Control Fully Clockwise.
RF SG setting 27.186 MHz, 0.5uV. Mod off.
LSB Sensitivity Set radio to CH19 LSB RX mode.
Set VOL Control Fully Clockwise.
RF SG setting 27.184 MHz, 0.5uV. Mod off.
NB Adjust Set radio to CH 18 AM RX mode
RF SG setting 27.185 MHz, 1000uV. Mod off.
Set NB/OFF switch to ON position.
Connect Multi-meter to TP1 (D2 cathode).
AM Squelch Set radio to CH 19 AM RX mode.
Set SQ Control Fully Clockwise.
RF SG setting 27.185 MHz, 20mV. Mod 30%.
SSB Squelch Set radio to CH 19 USB RX mode.
Set SQ Control Fully Clockwise.
RF SG setting 27.186 MHz, 20 mV. Mod off.
AM S-Meter Set radio to CH 19 AM RX mode.
RF SG setting 27.185 MHz, 100uV. Mod 30%. VR1
SSB S-Meter Set radio to CH 19 USB RX mode.
RF SG setting 27.186 MHz, 100uV. Mod off.
U.U.T. SETTING
- 13 -
ADJUST
MEASUREMENT
POINT
L2,L3,L5,L6, Audio Output > 2V
L7,L8,L9,L10 S/N > 10 dB.
For Balance Between
L5,L6
CH 1 and CH 40.
Audio Output > 2V
L11,L12
S/N > 10dB.
Audio Output > 2V
L11,L12
S/N >10dB.
L1 DC Voltage to max.
( > 2.0V )
Adjust very slowly
VR4 until
closes.
Adjust very slowly
VR3 until
closes
For a reading of "9"
on the "S" scale.
VR2 For a reading of "9"
on the "S" scale
squelch just
squelch just