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Receiver Section
Connections
AC 120V
60Hz
Preset
a) Connect the base RF unit to the base main unit.
b) Set the "TONE/PULSE" switch to PULSE.
c) Connect the AC adapter to the base unit while pressing the "PAGE" key, and keep pressing it continuously for
approximate 2 seconds.
d) 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: 1mV
2
1 kHz ±8kHz
deviation
SG: -6.0 dBµ µ µ µ µ V
3
1kHz ±8kHz
(SQ Point)
Deviation
Alignment Point Location on Base Main PCB and Base RF PCB
Base Main PCB
RF SG
RF
-
Test Point
+
J2
DC IN 9V Jack
AC
Adapter
Press the "PAGE" key for 3 times to enter the TEST Mode 4. Connect the
L3
RF Signal Generator to the RF test point on the Base MAIN PCB. Make
sure that the frequency is 902.952467 MHz.
Voltage)
Connect the DC Voltmeter to the AF Terminal of RT1. Adjust L3 to indicate
DC 1.00 V.
RT2
Connect the AC Voltmeter across a 600-ohm dummy to the Telephone Line
(RX AF
Jack. Adjust RT2 for a 195 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 902.952467 MHz. Adjust RT1 to turn to the
point where the CHG LED just turns on.
RT2
RT1
L3
AF Terminal
BASE Unit
Dummy Load
(600-ohm)
J1
TEL Line
-
Jack
+
AF
DC Voltmeter
Terminal
Remarks
RF Test Point
4
AC Voltmeter
J1
TEL LINE Jack
J2
DC IN 9V Jack
T
S2
T/P Switch
P
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