Inspection and Cleaning
Maintenance
6Ć4
CAUTION
Toprevent damage from electrical arcing, ensure that circuit
boards and components are dry before applying power to the oscilĆ
loscope.
TableĂ6Ć2:ăInternalInspection Check List
Item Inspect For Repair Action
 (+ * &() &&) (&"% &( &((& )&#( &%1
%* &%) +(%  (+ * &() +(%
(&"% &( ("  (+ *1(+% '#* %
) )*&() +(%(" (&"% &( # )*(
&% * &%
&#( &%%* &%) &# )&#( &( (&) % !& %*) )&#( !& %* % #% - * )&'(&'/#
#&&#
' *&() $ &( #" % )) &((&
)&#( &% #) &( *($ %#)
 ( % % #) &&) '#+) &( &%%*&() +(% (&1
"% &( (/ - ( %
 ($#/ )* &%%*&() ' ( &( ('#
$&+#) - * * , - () &( #)
)) ) %*) % &($* &%) *( *%(' ( &( ('# )) )
Cleaning Procedure Ċ Interior
 *( & % )*') %  $&+# ) #% +'&% %)'* &% )" '
* ($ % % )*')
 #&- & +)* - * (/ #&-1'())+(  &% 0  ( ''(&. $*#/ ') 
 $&, %/ ($ % % +)* - *  # %* ( #&* $'% % )&'(&'/#
#&&#  )&#+* &% % ( %) - * -($  &% 0 -*(  &**&%1
* '' ''# *&( ) +)+# &( #% % % %((&- )') % &%  (+ *
&()
NOTE
If steps 1 and 2 do not remove all the dust or dirt, the oscilloscope
may be spray washed using a solution of 75% isopropyl alcohol by
doing steps 3 through 7.
  % )) *& * '(*) *&  #% / ($&, % ) #/ )) #
) #) % '%#) ) Removal and Replacement Procedures