Toshiba FT-8989 Service Manual page 9

Handset Unit
Transmitter Section
Connection
Frequency
Deviation
Preset
Place the Handset in VCO/TX FREQ. ADJ mode in accordance with the procedure on page 4.
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
MC601
RF
Test Point
Power
Meter
RF
Test Point
Counter
Mater
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.
RT603
J603
HANDSET Unit
J603
Battery
1kHz 9mV
MIC+Pin
Connector
DC 3.8V
Remarks
RF PCB
RT501
CT601
7
AF GEN.
DC Power Supply
RF Test Point