KVARZ CH1-76A, Руководство по эксплуатации

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13
7. THE MASER CH1
–
76A OPERATION
7.1. OPERATING CONTROLS AND CONNECTORS
Operating controls and connectors are located on the front and rear panels of the Maser (Fig. 7.1).
The functions of operating controls and their initial positions are given in Table 7.1.
OPERATING CONTROLS AND CONNECTORS
Table 7.1.
Position in
Fig. 7.1
Operating controls or
connectors designation
Description Initial position
1 2 3 4
1,2 AC PWR ON/OFF Toggle switch - switches the
Maser on.
LED indicator
–
the Maser
switches on indication.
Down
3,4 DC PWR AVAIL
DC PWR ON LED indicator
–
battery
switches on indication.
5 TIME LED indicator
–
indicates Maser
operation from battery.
Digital indicator
–
current time
in hours, min., sec.
Indication of synthesizer setting
by "FRQ.ADJ." code switch
according to "INDICATION"
switch position.
6 ERROR Digital indicator - Maser error
indication in accordance with
the error table on the front
panel.
8 TIME NUMBER Buttons
–
current time setting.
7,9 AFC CRYST Toggle switch
–
crystal
oscillator AFC unit switches on.
Multi-turned potentiometer sets
crystal oscillators initial
position.
Down
10 FRQ. ADJ. Code switch
–
5 MHz output
frequency variation.
Look at
Table 10.1
11 TIME DIGIT Button
–
digit selection, in
which current time is set by
"NUMBER" button.