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HANDSET / TRANSMITTER
Test Equipment Required and Connections
• DC Power Supply, 3.6V
D C P o w e r S u p p l y
3 . 6 V
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
L 5 0 4
R F
T e s t P o i n t
• Digital Voltmeter
H a n d s e t
D u m m y L o a d
( 5 0 - o h m )
R F T e s t P o i n t
−
B a t t T e r m i n a l
+
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.
L 5 0 9
T X V C O
T e s t P o i n t
— 5 —
F r e q u e n c y C o u n t e r
D i g i t a l V o l t m e t e r
T X V C O
T e s t P o i n t
Remarks
J 5 0 1
B a t t e r y
T e r m i n a l
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