Tektronix TAS 455, Service Manual

Page: 122 / 226

Inspection and Cleaning
Maintenance
6Ć6
Inspection Ċ Exterior
#'%( ( $)(' $ ( $'!!$'$% $& " +& # "''# %&('
' ! - ' ) '!!$'$%' (( %%& ($ * # &$%%
$& $(&+' )' '$)! ($&$)!, ($ *&, $&&( $%&-
($# # %&$&"# %& (' (( $)! )' %&'$#! #)&, $&
! ($ )&(& " ($ ( $'!!$'$% ""(!,
TableĂ6Ć2:ăExternal Inspection Check List
Item Inspect For Repair Action
#( &$#( %#!
# $*&
& ' '&(' $&"($#'
" &+& $& ' ('
%! (* "$)!
&$#(-%#! #$' ''# " $& !$$' #$' %& $& &%! "''# $& (* #$'
$##($&' &$ # '!!' & #')!($#
# $&" $#((' &( # $#-
#($&'
%! (* "$)!' !& $& +' $)(
&(
&&,# #! #
#( (
$&&( $%&($# %& $& &%! (* "$)!
''$&' ''# ("' $& %&(' $ ("' #(
%#' &$ # $& &, !' #
" $##($&'
%! " $& "''# ("'
Cleaning Procedure Ċ Exterior
"$* !$$' )'( $# ( $)(' $ ( $'!!$'$% +( !#( &
!$(
"$* &"## &( +( !#( & !$( "%# # #&!%)&-
%$' (&#(-#-+(& '$!)($# $ #$( )' &'*!#&'
CAUTION
To prevent getting moisture inside the oscilloscope during external
cleaning, use only enough liquid to dampen the cloth or applicator.
!# ( '&# +( !#(-& !$( "%# +((&
'$%&$%,! !$$! '$!)($# $& %&&!, #(! #&! %)&%$'
(&#(-#-+(& '$!)($#
NOTE
If the CRT Implosion Shield needs further cleansing, refer to the
procedure on page 6Ć7.