3
ALIGNMENT PROCEDURE
Base Unit
Transmitter Section
Connections
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 sectonds.
d) Release the “PAGE” key when entering TEST mode 1 with IN USE LED lighting.
Alignment Procedure
Alignment Point Location on Base Main PCB and Base RF PCB
step
1
2
3
Adjustment
RT301
(TX Power)
CT1
(TX Frequency)
RT3
(TX Modulation)
Remarks
Connect the Power Meter to the RF test point on the Base MAIN PCB.
Adjust RT301 for a -7dBm reading on the Power Meter.
Connect the Frequency Counter to the RF test point on the Base MAIN
PCB. Adjust CT1 to make sure that the frequency is 926.897468 MHz.
Press the “PAGE” key to enter the TEST Mode 2. Connect the AF Generator
to the TEL Line Jack on the Base Main PCB. Make sure that the output is 1
kHz -15dBm from the AF Generator.
Connect the Deviation Meter to the RF test point on the Base MAIN PCB.
Adjust RT3 to indicate ±8 kHz Dev.
Base Main PCB
Power
Meter
RF
Test Point
BASE Unit
J2
DC IN
9V Jack
1kHz -15dBm
AF GEN.
AC 120V
60Hz
Frequency
Counter
Deviation
Mater
RF
Test Point
J1
TEL Line
Jack
AC
Adapter
RT3
CT1
RT301
Base RF PCB
J1
TEL LINE Jack
J2
DC IN 9V Jack
S2
TONE/PULSE Switch
T
P
RF Test Point
Summary of Contents for FT-8800
Page 1: ...CORDLESS TELEPHONE SERVICE MANUAL FILE NO 2B0 200007 FT 8800 PUBLISHED IN JAPAN Sep 2000 ...
Page 8: ...7 BLOCK DIAGRAMS Base Unit B301 ...
Page 9: ...8 Handset B501 ...
Page 10: ...9 10 SCHEMATIC DIAGRAMS Base Unit B301 RF MODULE ...
Page 11: ...11 12 Handset B501 RF MODULE ...
Page 26: ...27 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Page 27: ...28 Handset Main PCB ...
Page 28: ...29 WIRING DIAGRAMS Base Unit ...
Page 29: ...30 Handset ...
Page 50: ......
