Table of Contents
Advertisement
Receiver Section
Connection
RF SG
DC Power Supply
Preset
Place the Handset in RX SENS mode (step 4) in accordance with the procedure on page 4.
Alignment Procedure
Step
Preset to
SG: 1 mV
1
No modulation
SG: 1 mV
1 kHz ±8 kHz
2
deviation
SG: −6.5 dBµV
1 kHz ±8 kHz
3
deviation
Alignment Point Location on Handset Main PCB and Handset RF PCB
Handset Main PCB
MIC + Pin
MC601
HANDSET MAIN PCB
HANDSET RF PCB
-
RF
Battery
Test Point
+
Terminals
DC 3.8V
Adjustment
Connect the RF Signal Generator to the RF test point on the handset RF
L512
PCB. Make sure that the frequency is 926.994344 MHz.
(Discriminator
Connect the DC Voltmeter to the J601 AF test point. Adjust L512 to
Voltage)
indicate DC 0.95 V.
Connect the RF Signal Generator to the RF test point on the handset RF
VR602
PCB. Make sure that the frequency is 926.994344 MHz.
(RX AF
Connect the AC Voltmeter across a 150-ohm dummy to the SP
Output)
Connector. Adjust VR602 for a 65 mV reading on the AC Voltmeter.
Press the "5" key to enter the TEST Mode 5. Make sure that the frequency
VR501
of RF SG output is 926.994344 MHz. Adjust VR501 to turn to the point
(SQ Point)
where there is no signal on the oscilloscope.
AF TEST POINT
Dummy Load
(150-ohm)
J602
-
SP
Connector
+
J601
DC Voltmeter
AF Terminal
Remarks
RF PCB
J502
VR501
VR602
L512
AC Voltmeter
Oscilloscope
RF TEST POINT
J501
J602
SP
Connector
Advertisement
Table of Contents
