Toshiba FT-8509 Service Manual page 8

Receiver Section
Connections
Preset
Place the Base unit in RX SENS mode (step 4) in accordance with the procedure on page 3.
Alignment Procedure
step Preset to Adjustment
SG: 1mV
1 (Discriminator
No modulation
SG: 1mV
2 1kHz ±8kHz
deviation
SG: -7dBµV
3
No modulation (SQ Point)
Alignment Point Location on Base Main PCB and Base RF PCB
Base Main PCB
AF TEST POINT
RF SG
-
+
DC IN 9V Jack
AC 120V
AC
60Hz Adapter
Connect the RF Signal Generator to the RF test point on the Base MAIN
L3
PCB. Make sure that the frequency is 902.952467 MHz.
Connect the DC Voltmeter to the AF test p oint (JV21). Adjust L3 to
Voltage)
indicate DC 1.9V.
RT2
Connect the AC Voltmeter across a 600-ohm dummy to the Telephone
(RX AF
Line Jack. Adjust RT2 for a 218 mV reading on the AC voltmeter.
Voltage)
Press the "5" key to enter the TEST Mode 5.
RT1
frequency of RF SG output is 902.952467 MHz. Adjust RT1 to turn to
the point where the bell rings.
RT2 RT1
JV21
L3
BASE Unit
Dummy Load
(600-ohm)
J3
RF
TEL Line -
Test Point
Jack
+
AF
J1
DC Voltmeter
Terminal
Remarks
BASE RF PCB
RT301
6
AC Voltmeter
Make sure that the
J3
TEL LINE Jack
J1
DC IN 9V Jack
RF TEST POINT