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Base Unit
Connections
AC 120V
AC Adapter
60Hz
Preset
a) Connect the AC adapter to the base unit while pressing the "PAGE" key, and keep pressing it continuously for
approximate 2 seconds.
b) Release the "PAGE" key when entering TEST mode 1 with IN USE LED lighting.
Alignment Procedure
Step
Preset to
Adjustment
SG: 1mV
1
(Discriminator
No modulation
SG: 1 mV
1 kHz ±20 kHz
2
Deviation
SG: +2.0 dBµV
3
1 kHz ± 20 kHz
Deviation
Alignment Point Location on Base Main PCB and Base RF PCB
RF SG
−
RF
Test Point
+
J2
DC IN 9V Jack
Press the "PAGE" key 3 times to enter the TEST Mode 4. Connect the
L9
RF Signal Generator to the RF test point on the Base MAIN PCB. Make
sure that the frequency is 903.337954 MHz.
Voltage)
Connect the DC Voltmeter to the AF test point. Adjust L9 to indicate DC
1.4 V.
RT2
Connect the AC Voltmeter across a 600-ohm dummy to the Telephone
(RX AF
Line Jack. Adjust RT2 for a 173 mV reading on the AC voltmeter.
Voltage)
Press the "PAGE" key to enter the TEST Mode 5. Make sure that the
RT1
frequency of RF SG output is 903.337954 MHz. Adjust RT1 to turn to
(SQ Point)
the point where the CHG LED just turns on.
L9
RT2
AF
TEST POINT
BASE Unit
Dummy Load
(600-ohm)
J1
−
TEL Line
Jack
+
DC Voltmeter
AF Terminal
Remarks
RT1
— 4 —
AC Voltmeter
J1
TEL LINE Jack
J2
DC IN 9V Jack
RF
TEST POINT
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