Toshiba FD-4809 Service Manual page 5

Receiver Section
Connections
Preset
a) Remove the solder on the pattern (refer to the illust. below).
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/CHARGE LED lighting.
Alignment Procedure
step Preset to Adjustment
SG: 1mV
1 (Discriminator
No modulation
Alignment Point Location on Base Main PCB and Base RF PCB
Base Main PCB
RF SG
AC 120V AC
60Hz Adapter
Press the "PAGE" key for 3 times to enter the TEST Mode 4. Connect the
L1 RF Signal Generator to the RF test point on the Base MAIN PCB. Make
sure that the frequency is 903.417756 MHz.
Voltage) Connect the DC Voltmeter to the Discriminator test point. Adjust L1 to
indicate DC 0.90 V.
L1
Discriminator Test Point
BASE Unit
RF
-
Test Point
+
J3
AF
DC IN
Terminal
9V Jack
Remarks
RF Test Point
4
DC Voltmeter
J1
TEL LINE Jack
J3
DC IN 9V Jack
T
S2
T/P Switch
P
Remove solder