User manual

Adjustments
CSA 803A Service Manual
5Ć9
Setup to Examine/Adjust Voltage Reference
CSA 803A
 #!
#! !
" $! (


Digital Voltmeter
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.6
()2 /1.#%$41% 2(.4+$ .-+7 "% /%1&.1,%$ )& ,!)-3%-!-#% )2 1%04)1%$
()2 )2 -.3 -%#%22!17 &.1 5%1)&7)-' )-2314,%-3 2/%#)&)#!3).-2
Procedure to Examine/Adjust Voltage Reference
ăStep 1:ă%1&.1, 3(% &.++.6)-' 2%33)-'2 )- 3(% .1$%1 +)23%$
! %3 3(% &1.-3 /!-%+  26)3#( 3.  !-$ 3(% 1%!1
/!-%+    3.  )2#.--%#3 3(% 
 &1., 3(% /.6%1 2.41#%
" %,.5% 3(% .6%1 4//+7 ,.$4+% &.++.6)-' 3(% /1.#%$41% +)23%$
4-$%1 .6%1 4//+7 .$4+% %,.5!+%/+!#%,%-3 )- 3(% !)-3%8
-!-#% %#3).-
# 1%!3% ! 2(.13 "%36%%- 3%23 /.)-32  !-$  .- 3(% 
.-31.+ %#3)&)%1 ".!1$ 42)-' ! 2(.13)-' 231!/ %% )'41% 8
$ .--%#3 3(%   .6%1 4//+7 ,.$4+% 3. ! 24)3!"+% +)-% /.68
%1 2.41#%
% %3 3(% 1%!1 /!-%+    3. 
ăStep 2:ă)3( 3(% )')3!+ .+3,%3%1 2%3 3.  .+3!'% !-$ #.--%#3%$ !2
)-$)#!3%$ )- 3(% 2%34/ $)!'1!,  3(!3 3(% ,4+3),%3%1 1%!$2 6)3()-
3(% +),)32 .&  !-$ 
  !33%,/3 3. #(!-'% 3(% &.++.6)-' !$*423,%-3 2%33)-' )& 3(%
1%!$)-' )2 6)3()- 3(% 23!3%$ +),)32 -23%!$ /1.#%%$ 3. 3%/ 
WARNING
!%# #! " $" '#! $# &  #
& $"##