5
RF
Test Point
AC 120V
60Hz
J2
DC IN
9V Jack
BASE Unit
AF GEN.
1kHz 77.6mV
AC
Adapter
RF
Test Point
Power
Meter
J5
TEL Line
Jack
Frequency
Counter
Deviation
Meter
Dummy Load
(600-ohm)
-
+
Base Unit
Transmitter Section
Connections
Preset
Place the Base unit in VCO/TX FREQ. ADJ mode in accordance with the procedure on page 3.
Alignment Procedure
Alignment Point Location on Base Main PCB and Base RF PCB
step
Adjutment
Remarks
1
RT301
(TX Power)
Connect the Power Meter to the RF test point on the Base MAIN PCB.
Adjust RT301 for a -5.5dBm reading on the Power Meter.
2
CT1
(TX Frequency)
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.
3
RT3
(TX Modulation)
Press the “2” 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 77.6 mV 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
J5
TEL LINE Jack
J2
DC IN 9V Jack
RT3
CT1
BASE RF PCB
RT301
RF TEST POINT
Содержание FT-8859
Страница 2: ...CORDLESS TELEPHONE SERVICE MANUAL FILE NO 2B0 9907 FT 8859 PUBLISHED IN JAPAN Oct 1999 ...
Страница 11: ...9 BLOCK DIAGRAMS Base Unit ...
Страница 12: ...10 Handset Unit ...
Страница 13: ...11 12 SCHEMATIC DIAGRAMS Base Unit Main ...
Страница 14: ...13 Base Unit Key NOTES 1 RESISTANCE VALUES ARE SHOWN IN OHMS UNLESS OTHERWISE NOTED K KIRO OHM M MEG OHM ...
Страница 15: ...14 15 Handset ...
Страница 30: ...30 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Страница 31: ...31 Base Unit Key PCB ...
Страница 32: ...32 Handset Main PCB ...
Страница 33: ...33 34 WIRING DIAGRAMS Base Unit ...
Страница 34: ...35 Handset ...
Страница 35: ...36 EXPLODED VIEWS AND MECHANICAL PARTS LIST Base Unit SPEAKER KEY PCB RF MODULE BASE MAIN PCB ANTENNA ...
Страница 37: ...38 Handset 7 8 4 15 1 16 17 18 17 5 10 22 11 21 12 20 2 9 6 19 13 14 3 17 RF MODULE HANDSET MAIN PCB ASSY ...
Страница 57: ......