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HANDSET / TRANSMITTER
Test Equipment Required and Connections
• DC Power Supply, 3.6V
DC Power Supply
3.6V
Preset
Turn Power on while depressing " " and "#" keys. A beep will be heard. Then the TX Mode is entered (CH21).
Alignment Procedure
Step
Adjustment
1
L509
2
Alignment Point Location on Main (Handset Unit) PCB
L504
RF
Test Point
• Digital Voltmeter
Handset Unit
Dummy Load
(50-ohm)
RF Test Point
-
Batt Terminal
+
Set the digital voltmeter at the test point of TX VCO, then adjust L509 to
indicate DC 2.0 V ±0.05 V at CH21.
Connect the frequency counter across a 50-ohm dummy load to RF test
point. Make sure that the frequency is 49.830 MHz ±1500 Hz.
L509
TX VCO
Test Point
Frequency Counter
Digital Voltmeter
TX VCO
Test Point
Remarks
— 5 —
J501
Battery
Terminal
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