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CALIBRATION
2.
PRELIMINARY INSPECTION
a.
General
Check for unsoldered joints, rosin joints, lead
dress and long leads. Check for loose hardware and
protruding parts. Check controls for smooth mech
anical operation, proper indexing, and knob spacing
from front panel.
b.
234 v ac wiring
Assure that the ac lead from T401 term 2 is con
nected to T340 term 3.
c.
Fuses
F402 117 v SO-60 cps operation
159-006
Sa
3 ag
slo-blo
F 402 234 v 50-60 cps operation
F2SS
F310
d.
159-005
3a
3 ag
159-024
1/16a
3 ag
159-025
1/2a
3 ag
Crt
slo-blo
fast-blo
fast-blo
Check that crt neck pin connections are tight. Loos
en crt clamp, remove graticule, push crt forward
and check crt face plate tilt relative to front panel;
keep black light shield in place. Push crt forward to
a straight edge firmly placed against the front panel,
across any diameter of the crt. Check gap within
phosphor area with special crt face tilt checker:
1/32", max.
'.
Straight
.
.
:
_
_1_
1/32;,'max
1/32" max 1/32"nia�
Tilt
Concavity Convexi.ty
Tighten crt cla
rrtp
�
6
570 CALIBRATION
NOTES
2a.
WARNING
(1)
CSOS and CS06 (in power supply) normally hold
a high charge for some time after instrument
turn off.
2d.
NOTE
(1)
These crt specifications are simplified. Do
not reject crt without the authorization of a
trained crt checker, or without reference to
crt data.
2-5-64
TEK 570
FCP-
Summary of Contents for 570
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