5
Handset Unit
Transmitter Section
Connection
Alignment Point Location on Handset Main PCB and Handset RF PCB
Preset
a) Connect the handseet RF unit to the handset main unit.
b) Connect DC power supply to battery connector on the handset unit.
c) Turn the DC power supply On while pressing "
*
" and " # " keys, and keep pressing the keys continuously for
approximate 2 seconds.
d) Release keys when entering TEST mode 1 with beep.
Alignment Procedure
step
1
2
3
Adjustment
RT501
(TX Power)
CT601
(TX Frequency)
RT603
(TX Modulation)
Remarks
Connect the RF power Meter to the RF test point on the handset MAIN PCB.
Adjust RT501 for a -5dBm reading on the Power Meter.
Connect the Frequency Counter to the RF test point on the handset MAIN
PCB. Adjust CT601 to make sure that the frequency is 903.052467 MHz.
Press the “2” key to enter the TEST Mode 2. Connect the AF Generator to
the MIC Connector make sure that the output is 1kHz 9mV from the AF
Generator.
Connect the Deviation Meter to the RF test point on the handset MAIN PCB.
Adjust RT603 to indicate ±8 kHz Dev.
Power
Meter
RF
Test Point
HANDSET Unit
J603
Battery
Connector
1kHz 9mV
AF GEN.
DC 3.8V
Frequency
Counter
Deviation
Mater
RF
Test Point
MIC+Pin
DC Power Supply
CT601
RT501
RF PCB
RT603
J603
MC601
RF Test Point
Handset PCB
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: ......
