Tektronix 422 - Page 102

Performance Check/Calibration—Type 422 AC-DC
2. Set the controls as given under Preliminary Control
Settings. Allow at least 20 minutes warmup before
proceeding.
Preliminary Control Settings
Set the Type 422 controls as follows:
CRT Controls
3. Begin the performance check with step 6.
Preliminary Procedure for Complete Calibration
INTENSITY
FOCUS
ASTIGMATISM
SCALE ILLUM
Midrange
Adjust for well defined display
Adjust for well defined display
Clockwise
Vertical controls (both channels if applicable)
1. Remove the power supply and cabinet from
the Type 422 (see Section 4).
2. Remove the battery box from the power
supply (see Section 2).
3. Connect the power supply for remote
operation (see Section 2).
4. Connect the AC-DC Power Supply to the
variable DC supply with the DC power cord
(supplied accessory).
5. Set the controls as given under Preliminary
Control Settings except as follows:
Power Mode OPE RATE 11.5- 35V DC
6. Turn the variable DC power supply on and
set it for an output voltage of +24 volts. Allow at
least 20 minutes warmup between proceeding.
VOLTS/DIV
.05
VARIABLE
CAL
Input Coupling
DC
POSITION
Midrange
Mode
CH 1
INVERT
Pushed in
X10 GAIN AC
Pushed in
Triggering controls
Source
CH 1 & 2
Coupling
AC
SLOPE
Positive going
Mode
AUTO
LEVEL
Midrange
Sweep controls
POSITION
Midrange
TIME/DIV
1 ms
VARIABLE
CAL
X10 MAG
Pushed in
Power
POWER
ON (at power supply)
Rear panel
Power Mode OPERATE 115V AC
5-8