Service manual

ALIGNMENT PROCEDURE AND PERFORMANCE TESTS
8-5
Revised January 1995
Part No. 001-9750-003
c. Increase the generator output until the receiver
unsquelches. This should occur by 9 dB SINAD ± 2
dB. Then decrease the output until the receiver
squelches. This should occur by 5 dB ± 2 dB. If not,
repeat the preceding step.
8.4.4 LOCAL TONE LEVEL ADJUST
R643 adjusts the level of the tone which indi-
cates such things as when a key is pressed. To enable
this tone, press a front panel key or turn the Select
switch. Adjust R643 for the desired tone level
(approximately midrange).
Figure 8-4 Alignment Point Diagrams