TB 9-6625-2000-35
(9) Turn FM DEV AMPLITUDE control fully cw and FUNCTION switch to FM. If
oscilloscope does not indicate a symmetrical saw tooth wave (no flat bottom), perform b below.
b. Adjustments. Adjust R17 (fig. 2) for a saw tooth wave with no flat bottom (R).
13. Delayed and Undelayed
a. Performance Check
(1) Connect UNDELAYED output to oscilloscope CH 1 input and DELAYED output to
CH 2 input of oscilloscope.
(2) Set FUNCTION switch to INT
.
(3) Set SYNC DELAY control fully ccw and LOW-X1-X10-X100 switch to LOW.
(4) Adjust oscilloscope to display both pulses. Delayed pulse will be delayed 0.2 s or
less from undelayed pulse.
(5) Set SYNC DELAY control fully cw. Oscilloscope will indicate delayed pulse 2 s or
more from undelayed pulse.
(6) Set SYNC DELAY control fully ccw and LOW-X1-X10-X100 switch to X1.
Oscilloscope will show delayed pulse 2 s or less.
(7) Set SYNC DELAY LOW-X1-X10-X100 switch to X10. Oscilloscope will indicate
delayed pulse 20 s or less.
(8) Set SYNC DELAY LOW-X1-X10-X100 switch to X100. Oscilloscope will indicate
delayed pulse 200 s or less.
(9) Disconnect cable from DELAYED output and connect to
OUT connector.
Oscilloscope will indicate delayed pulse 200 s or less.
b. Adjustments. No adjustments can be made.
14. Power Supply
a. Performance Check
NOTE
Do not perform power supply check if all other parameters are
within tolerance.
(1) Connect multimeter between pin 4 and pin 2 (common) of connector 1A4TPI (fig. 3).
If multimeter does not indicate between 2.07 and 2.53 V dc, perform b (1) below.
(2) Connect multimeter between chassis ground and pin 2 of A3J3 (fig. 1), using high-
voltage probe. If multimeter does not indicate between -1237.5 and -1262.5 V dc, perform b (2) below.
(3) Press CW pushbutton and turn F control fully cw.
