Tektronix 310A, Instruction Manual, Page: 57 / 132

Performance Check/Calibration-Type 310A
DC
V oltm eter
A u to tro n ifo rm e r
11 •inch
B N C -to-b ano no
plug patch cord
Three-inch
tcre w driver
Phillips
Screwdriver
Fig. 5 -1 . E qu ipm ent required lo r staps 1 through 9.
CRT controls
FOCUS
Midrange
IN TEN SITY
Counterclockwise
SCALE ILLU M As desired (power on)
Vertical controls
V O LT S /D IV .1
Variable
C A LIB R A T E D
Input Coupling DC
Trigger controls
TRIGGER
+IN T
Trigger Coupling-Mode
AC
TRIG LEVEL
Clockwise
S T A B IL IT Y
Counterclockwise (not
in PRESET detent)
Sweep controls
T IM E /D IV
lOOfiSEC
Variable
C A LIB R A T E D
Horizontal Display
X I MAG
Other controls
V E R TIC A L POSITION
Midrange
H O R IZO N TAL POSITION
Midrange
C ALIBR ATO R
OFF
Rear-panel controls
HORIZ GAIN
Clockwise
1. A d ju s t-1 5 0 -V o lt Power Supply
PERFORMANCE CHECK O NLY
Steps 1 through 5 are not applicable to a performance
check. Set controls as given following Fig. 5-1 and
begin with step 6.
a. Equipment required for steps 1 through 9 is shown
in Fig. 5-1.
b. Separate the chassis o f the Type 310A and swing the
right chassis open.
c. Connect the DC voltmeter from the -1 5 0 -v o lt test
point (see Fig. 5 2A) to chassis ground.
NOTE
Power supply voltage and ripple tolerances given in
steps 1 through 5 are typical values, provided as
guides to correct instrument operation. They are not
instrument specifications. The actual values may be
greater than those listed, without loss of measure­
ment accuracy, if the instrument meets the specifica­
tions given in Section 1 as tested in this procedure.
d. C H E C K -M eter reading, - 1 5 0 volts ±4.5 volts.
e. ADJUST------ 150-V A d j, R610 (see Fig. 5-2B) fo r
— 150 volts.
5-7