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Receiver Section
Connection
RF SG
AC 120V
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: 1 mV
1 kHz ±8kHz
2
deviation
SG: −6.5 dBµV
3
No modulation
(SQ Point)
Alignment Point Location on Base Main PCB and Base RF PCB
AF TEST POINT
BASE RF PCB
BASE MAIN PCB
−
J2
RF
DC IN
+
Test Point
9V Jack
AC Adapter
60Hz
Press the "PAGE" key for 3 times to enter the TEST Mode 4. Connect the
L212
RF Signal Generator to the RF test point on the Base RF PCB. Make sure
that the frequency is 902.984676 MHz.
Voltage)
Connect the DC Voltmeter to the J1 AF test point. Adjust L212 to indicate
DC 0.85 V.
Connect the RF Signal Generator to the RF test point on the Base RF
RT1
PCB. Make sure that the frequency is 902.984676 MHz.
(RX AF
Connect the AC Voltmeter across a 600-ohm dummy to the Telephone
Voltage)
Line Jack. Adjust RT1 for a 195 mV reading on the AC voltmeter.
Press the "PAGE" key to enter the TEST Mode 5. Make sure that the
VR201
frequency of RF SG output is 902.984676 MHz. Adjust VR201 to turn to
the point where the CHG LED just turns on.
Base Main PCB
RT1
Dummy Load
(600-ohm)
J3
−
TEL Line
Jack
+
J1
DC Voltmeter
AF Terminal
Remarks
Base RF PCB
J202
J201
VR201
L212
— 3 —
AC Voltmeter
J3
TEL LINE Jack
J2
DC IN 9V Jack
T
S2
T/P Switch
P
RF TEST POINT
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