Tektronix TDS 520A - Applying and Interrupting Power; Power on; Power off

General Information
TDS 520A, 524A, 540A, & 544A Service Manual
2Ć11
'&+!* ,  '$$'/!& !&'*%,!'& / & 1'- ('/* -( '* ('/* '/& , 
!&+,*-%&, '* / & ('/* !+ !&,**-(, - ,' & 0,*&$ ('/* !$-*
Power On
('& ('/* '& ,  '+!$$'+'( *-&+ !,+ ('/*3'& +$  #  !, (+++
,  '+!$$'+'( !+($1+  2(++ +,,-+ %++ &  (*'%(, ,' (*++
  ,' '&,!&-  !, !$+ ,  '+!$$'+'( !+($1+  !&'+,! $'
, , !&,!!+ ,  *+ , , !$ &  (*'%(, ,' (*++   ,'
'&,!&-  ,!'&  Maintenance '* !&'*%,!'& '& !&'+,!+ &
-$, !+'$,!'&
Power Off
CAUTION
DO NOT power off the oscilloscope when either running a signal
path compensation or when doing any of the adjustments described
in Section 5, "-+,%&, *'-*+ To do so might result in the
loss of internally stored adjustment constants.
& &*$ ' &', ('/* ' ,  !&+,*-%&, / & '!& '(*,!'&+ , , ,
,  , ,1(+ $!+, !& $ 3 !, '* ,  !&+,*-%&, ,' !&!+ ,  '(*3
,!'& / & '!& "-+,%&,+ +.!& /.'*%+ '* +.!& +,-(+
%(*'(* ('/* ' '* -&0(, $'++ ' ('/* ,' ,  '+!$$'+'( &
*+-$, !& ,  '$$'/!& '**-(,!'&+ ' &'&3.'$,!$     '$$'/!&
,$ +*!+ ,  %+++ !+($1 / & ('/* !+ *+,'* ,* &
&'*%$ ('/* '
TableĂ2Ć2:ăEffects of Corrupted Data
Corrupted Data Type
Results
Adjustment Constants:
H !&$ , '%(&+,!'&  +!&$ (, '%(&+,!'& !+ *)-!*
H '$, *&  .'$, **& "-+,%&, !+ *3
)-!* ,!'&
H *)-&1 +('&+  *)-&1 *+('&+ "-+,%&, !+ *3
)-!* ,!'& 
Error Log
**'*+ $' * $'+,
Reference Waveforms .'*% '+,
Saved Setups ,-( '+,
Applying and
Interrupting Power