4
Receiver Section
Connections
Alignment Point Location on Base Main PCB and Base RF PCB
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
1
Preset to
SG: 1mV
No modulation
Remarks
Press the “PAGE” key for 3 times to enter the TEST Mode 4. Connect the
RF Signal Generator to the test point (J1) on the Base MAIN PCB. Make
sure that the frequency is 903.417756 MHz.
Connect the DC Voltmeter to the Discriminator test point. Adjust L1 to
indicate DC 0.90 V.
Adjustment
L1
(Discriminator
Voltage)
Test Point
Base Main PCB
Discriminator Test Point
Test Point
(J1)
Discriminator
Test Point
DC IN
9V Jack
AC 120V
60Hz
BASE Unit
-
+
SG
DC Voltmeter
AC
Adapter
S1
J1
L1
Base RF PCB
Remove solder
before alignment
VR202
T
P
Summary of Contents for FD-9839
Page 2: ...CORDLESS TELEPHONE SERVICE MANUAL FILE NO 2B0 9911 FD 9839 PUBLISHED IN JAPAN Dec 1999 ...
Page 9: ...7 BLOCK DIAGRAMS Base Unit Main ...
Page 10: ...8 Base Unit Key ...
Page 11: ...9 Handset ...
Page 12: ...10 11 SCHEMATIC DIAGRAMS Base Unit Main ...
Page 13: ...12 13 Base Unit Key ...
Page 14: ...14 15 Handset ...
Page 33: ...34 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Page 34: ...35 Base Unit Key PCB ...
Page 35: ...36 Handset Main PCB ...
Page 36: ...37 38 WIRING DIAGRAMS Base Unit ...
Page 37: ...39 Handset ...
Page 64: ......