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CALIBRATION
15.
VER TICAL MA/DIV
a.
Setup
Adjust VARIABLE +dc for exactly 100v on 570
meter.
Set INDICATION to HTR and VERTICAL MA/DIV to
SO. Position the spot to the bottom graticule line.
Plug the special 570 MA/DIV switch checker into
the DC+ and K jacks on the test panel.
b.
VERTICAL MA/DIV
error: ±3%, max
Check VERTICAL MA/DIV accuracy as follows:
VERTICAL
switch
deflection
MA/DIV
checker
major div
SO
10
2; ±.3 minor diY, max
20
10
5; ±.7S minor diY, max
10
10
10; ± 1. 5 minor diY, max
5
5
10; ±1.5 minor diY, max
2
2
10; ±1.S minor diY, max
1
1
10; ±1.S minor div, max
.5
.5
10; ±1.S minor div, max
.2
.2
10; ±1. 5 minor diY, max
.1
. 1
10; ±1.S minor div, max
.05
.05
10; ±1.S minor diY, max
.02
.02
10; ±1.S minor div, max
16.
VOLTS/DIY BALANCE
a.
Setup
VERTICAL
VERTICAL MA/DIV
HORIZONTAL
SCREEN
1
PLATE
Connect P jack to K jack on test panel.
b.
Volts/Diy Bal
Move HORIZONTAL VOLTS/DIY back and forth be�
tween .5 and . 1 while adjusting Volts/Diy Bal (SCOp
�
bottom) for no horiz shifting of the spot.
Rotate HORIZONTAL VOL TS/DIV thru its range and
note appro x 1 minor div, max shift.
16
570 CALIBRATION
NOTES
16a. Dot drift
(1)
If dot drifts after P and K jacks are connected
together, check for gassy V210 or V21S.
2-5-64
TEK 570 FCP
Summary of Contents for 570
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