Toshiba FD-9839 Service Manual page 6

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 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
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 test point (J1) 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.
Base RF PCB
L1
Discriminator Test Point
BASE Unit
Test Point
-
(J1)
+
DC IN
Discriminator
9V Jack
Test Point
Remarks
S1
J1
VR202
Test Point
4
DC Voltmeter
T
P
Remove solder
before alignment