Tektronix 2213 - Page 88

If any
electrical com p one
n
t
is re p lace d , condu ct α
P erforman ce C h ec
k of t h e affecte d circuit an d of ot
h er
closely
related ci r cuits (see Section 4)
. If r ep air or re p lace-
ment wor k is done on any of
t h e p ower su pp lies, con d uct
α com p lete Pe r fo r
mance
C
h ec k an d ,
if
so
i n dicated, an
instrume n t
rea
dj ustment
(see Section 5) .
Tab le 6-2
Exte r nal Ins p ection C h ec k list
Table 6-3
Internal Ins p ectio n C
h
ec
k
list
M ai n tenance-2213 Se
r vice
To p r event damage
from electrical arcing, ensu re
t h at circ
u
it
boar d s an d com pone n ts are dry before
applying p owe r to t he instru m ent .
Item
Ins p ect F o r R
epai r Action
Cab i n et a n d
Front Crack s, scratc h es, d eformations, an d d amaged
Touc h up paint scratc h es and re p lace d efective
P anel
hard
wa
r e or gas k ets .
parts .
Fro n t- p anel Controls
M issing, d amage d , o r loose k no b s, buttons, and R
ep air or re p lace missing or d efective items .
controls .
Connecto r s Bro
k en
s
h ells, crac k e d i n sulation, and defo r me d R eplace
defective parts . Clean or was h ou t d irt .
contacts . Dirt
in conn ectors .
Ca
r rying Hand le Correct
op eratio n . R eplace defective p
arts .
Accessories Missing items o r p arts of items,
b ent p i n s, R e p lace d amaged or missing items, fraye d
bro k en or fraye d cables, an
d d amage d cables, an d d efective parts .
con nectors .
Item I
n spect For Re p ai r Actio
n
Circ u it Boa
rd
s
L oose, brok en, or corro d e d sol d er con nections .
Clean
sol
d er corrosion wit h an eraser an d fl u s h
Bu
rne d circuit boar d s . Bu r ne d , b ro k en, or
with iso p ro p yl alco h ol . R esol d er d efective
crac ked circuit- ru n plati n g .
con n ections . Determine ca u se of bu r n e d ite m s
an d repair . R ep ai r d efective circuit
r
u ns .
R esistors Bu r ned, crac k ed , bro
k e n , or blistere d . R eplace defective r esistors . C h ec k for
cause
of
bu rne d compo n e n t an d re p air as n ecessary .
Sol de r Co n nections Col d
sol d er or rosin j oints . R esol d er j oi
n
t and clea
n wit h iso p ro p yl alco h ol .
Cap acito r s
Damage d or lea k i ng cases . Corrod
e d sol d er
on
R ep lace d efective capacitors . Clean sol d er
lea d s or terminals .
connectio n s an d flus h with iso p ropyl alco h ol .
W iring a nd Ca b les L oose p lugs or
connecto r s . Bu r ne d , br ok en, or Firmly seat connectors .
R e p air or re p lace
f r aye d wi r i n g .
d efective wires or ca b les .
C
h
assis
Dents, d eformatio n s, a
nd d amaged ha rd ware . Straig h te n , repai r , or re p lace d efective
har d ware .