Toshiba FT-8259 Service Manual page 6

Handset Unit
Transmitter Section
Connection
Power
Meter
Frequency
Counter
Deviation
Mater
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 1 second.
d) Release keys when entering TEST mode 1 with TALK LED and LINE2 LED lighting and beep.
Alignment Procedure
step Adjustment
RT501
1
(TX Power)
CT601
2
(TX Frequency)
RT603
3
(TX Modulation)
Alignment Point Location on Handset Main PCB and Handset RF PCB
Handset PCB
RF
HANDSET Unit
Test Point
J603
Battery
MIC+Pin
Connector
RF
Test Point
Connect the RF power Meter to the RF test point on the handset MAIN PCB.
Adjust RT501 for a -6.5dBm 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 903.102467 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 11mV 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.
5
AF GEN.
1kHz 11mV
DC Power Supply
DC 3.8V
Remarks
RF Test Point
RF PCB