TB 9-6625-149-50
a. Performance Check
(1) Turn TI HORIZONTAL DISPLAY switch to EXT HORIZ ATTEN X10.
(2) Position spot in center of TI crt.
(3) Turn TI EXTERNAL HORIZ ATTENUATOR control from fully clockwise to
fully counterclockwise. If spot does not remain stationary, perform b below.
b. Adjustments. Adjust
EXT. HORIZ. D.C. BAL R307 (fig. 2) until
spot remains
stationary. (R)
18. Vertical Rise Time
a. Performance Check
(1) Turn calibration adapter (A4) TEST FUNCTION switch to +PULSE.
(2) Turn TI TIME/CM switch to .1 SEC and HORIZONTAL DISPLAY switch to
5X MAG.
(3) Turn TI TRIGGER SLOPE switch to +INT.
(4) Measure rise time, using standard rise-time technique. Rise time will be less
than 12 nanoseconds.
b. Adjustments. No adjustments can be made.
NOTE
Do not perform power supply checks if all other parameters are
within tolerance.
a. Performance Check
(1) Connect ac/dc voltmeter (A2) between -150-volt test point (fig. 1) and ground.
Ac/dc voltmeter will indicate between -147 and -153 volts.
(2) Connect ac/dc voltmeter between test points (fig. 1) listed in table 6 and chassis
ground. Voltages at each test point will be within limits specified.
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