Tektronix 2247A

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Performance Check Procedure
Set CH 1 VOLTS/DIV to 20 mv.
CHECK—Display amplitude to 4.5 to 5.5 divisions (neglect trace
width) .
Connect a 50 2 terminator to the CH 1 Input.
Set CH 1 VOLTS/DIV to 10 mV.
m. CHECK—Display amplitude to 4.5 to 5.5 divisions (neglect trace
width) .
n. Set CH 2 VOLTS/DIV to 0.1 V.
0. Connect a 50 kHz signal from the Leveled Sine-Wave Generator to the
CH 2 Input connector via a 50 2 precision BNC cable and a 50 1 BNC
termination.
p. Adjust the generator output level to produce a 6-divislon CH 1 display.
q. Increase the generator frequency to 25 MHz.
r. CHECK—Display amplitude Is 4.24 divisions or greater.
s. Disconnect the test setup.
2. A GATE Output
a. Set:
SEC/DIV 0.1 ms
TRIGGER MODE AUTO
HOLDOFF Minimum (CCW)
b. Connect a test oscilloscope to the A GATE OUT Connector from the
rear-panel via 50 1. BNC cable.
c. CHECK—Test oscilloscope displays a signal with a high level between
2 V and §.25 V and a low level between 0 V and 0.7 V.
d. CHECK—Duratlon of the high level Is greater than or equal to 0.2 ms.
e. Set HOLDOFF Control to maximum (CW).
2247A Operators 7-65