![background image](http://html.mh-extra.com/html/tektronix/570/570_manual_1077533112.webp)
CALIBRA TION
b .
Internal adjustments
All internal adjustments
mid r
c.
Leave controls and adjustments, for any step
as they were in the step preceding unless noted
otherwise.
'
4.
RESISTANCE CHECKS
a.
Check supply resistances to ground.
check
approx
supply
point
resistance
-150 v
cs below T310
9 k
+100 v
cs below T310
15 k
+300 v
V495 pin 1
25 k
+400 v
C484
25 k
-300v
T401 term
6
lOOk
+400 v floating
V505 pin 8
over lOOk
-300 v floating
T50l term 10
over lOOk
117 v ac
T401 ; term 1,4
inf
b.
-150 27 K jack
error: ±1O%, max
Check the -150 27 K jack on the teSt panel for 27 k;
±2.7 k, max, resistance between the jack and the
-150v supply .
8
570 CALIBRATION
NOTES
3b.
Presetting internal adjustments
(1)
Presetting internal adjustments is helpful for
"first-time" calibration but is usually unnec
essary for recalibration. If you preset, you'll
have to perform a 100% recalibration. Don't
preset them unless you're certain a "start
from-scratch" policy is the best.
3c.
Control presets
( 1)
Any time a trouble is noted on crt or meter,
check control settings.
( 2)
Mis-set controls may give wrong indications
of circuit problems.
2-5-64
TEK 570 FCP
Summary of Contents for 570
Page 2: ...Verso Filler Page ...
Page 6: ...Verso Filler Page ...
Page 11: ......
Page 12: ...Verso Filler Page ...
Page 16: ......
Page 42: ...NOTES ...
Page 77: ......
Page 78: ...Verso Filler Page ...
Page 79: ......
Page 80: ...Verso Filler Page ...
Page 81: ......
Page 82: ......
Page 83: ......
Page 84: ......
Page 85: ......
Page 86: ......
Page 87: ......
Page 88: ......
Page 89: ......
Page 90: ...Verso Filler Page ...
Page 91: ......
Page 92: ...Verso Filler Page ...
Page 93: ......
Page 94: ...Verso Filler Page ...
Page 95: ......
Page 96: ......
Page 97: ......
Page 98: ......
Page 99: ......
Page 100: ......
Page 101: ......
Page 102: ......
Page 103: ......
Page 104: ...Verso Filler Page ...
Page 134: ...Verso Filler Page ...