Tektronix TAS 455 User manual

Instruction Manual
TAS 455 & TAS 465
Analog Oscilloscopes
070-8523-05
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to the Safety Summary prior to
performing service.

Copyright Tektronix, Inc. 1992. All rights reserved.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
Printed in the U.S.A.
Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

WARRANTY
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of three
(3) years from the date of shipment. If any such product proves defective during this warranty period, Tektronix,
at its option, either will repair the defective product without charge for parts and labor, or will provide a
replacement in exchange for the defective product.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration
of the warranty period and make suitable arrangements for the performance of service. Customer shall be
responsible for packaging and shipping the defective product to the service center designated by Tektronix, with
shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a
location within the country in which the Tektronix service center is located. Customer shall be responsible for
paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product;
b) to repair damage resulting from improper use or connection to incompatible equipment; or c) to service a
product that has been modified or integrated with other products when the effect of such modification or
integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF
ANY OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS
DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE
PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR
BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF
WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF
SUCH DAMAGES.

  $   $()'*) %$ $*" 
" % %$)$)(
' -
") $*"( - +
). *##'. -+
.#%"( $ '#( -+
&   '*) %$( -+
$)'%*) %$
'%*) (' &) %$ 0
(' $)' 0
 5
$+1/ 5
$+$. ) 1.-,/$ +,! +#  5
 2$$" )) $01-/ 5
') " .()# 0
%' /%$)" .()# 0
' ' .()# 0
(*'#$) *'(%'( 0
&) %$( 0
-0',+/  +0$.+ 0',+ ) ,3$. ,.#/ 5
 .. +045)1/ $.2'"$ -0',+/ 5
-0',+   "(*,1+0$# 5
-0',+  .,+0 ,2$. +# ,1"& 5
-0',+  ##'0',+ ) .,!$/ 5
-0',+  $.0'%'" 0$ ,%  )'!. 0',+ +# $/0  0 $-,.0 5
((%' ( 0
0 +# .# ""$//,.'$/ 5
-0',+ ) ""$//,.'$/ 5
""$//,.4 .,!$/ 5
)) $ )')
%,' $ 0
$()"") %$ 0
* ! )') 0
") $ $ (") $ $&*) $$"( 0
( $ ) $*( 0
%$$) $   $" 0

T ble of Contents
Contents

Using AUTOSET 2Ć4.........................................
Compens ting the Probe 2Ć5.................................
Adjusting Your Displ y Environment 2Ć8.......................
(* " -)*# /
%( .%$*" -)*# /
( ( -)*# /
Oper tion
At Gl nce 3Ć1.................................................
Power nd Displ y Controls 3Ć2..............................
Menu Select Buttons 3Ć3.....................................
Sign l Inputs nd Outputs 3Ć4................................
Vertic l Controls 3Ć5.........................................
Horizont l Controls 3Ć6......................................
Trigger Controls 3Ć7.........................................
Miscell neous Controls 3Ć8..................................
Menu M p 3Ć9...............................................
Re dout Displ y 3Ć10.........................................
Using B sic Fe tures 3Ć13........................................
Displ ying Repetitive Sign ls 3Ć13.............................
M gnifying Your Sign l 3Ć13...................................
Displ ying Video Sign ls 3Ć14.................................
Using Single Sequence 3Ć15...................................
Performing W veform M th 3Ć16...............................
Using the Del yed Sweep with Del yed Triggering 3Ć17.........
) $ +" "- /
S ving nd Rec lling Front P nel Setups 3Ć22..................
, $  *+& /
"" $  *+& /
() $  *+& /
T king Me surements 3Ć25........................................
T king Time Rel ted Me surements 3Ć25.......................
)+( $ * ('+$- $ ( % /
)+( $ +")  * /
! $  )""  # )+(#$*) /
T king Volt ge Rel ted Me surements 3Ć29....................
)%"+* %"* )+(#$* /
"* %"* )+(#$* /

'! *" *)/!)/.
  )   )./-0/%*) )0' 
+!%"%/%*).
*(%)' -%/. 4
--)/! $-/!-%./%. 4
!-"*-()! *) %/%*). 4
3+%' $-/!-%./%. 4
$!*-3 *" +!-/%*)
$!*-3 *" +!-/%*) 4
!-1%! /-/!#3 4
'*& !1!' !.-%+/%*). 4
&*$ 2
&(-, #!&$ ," 2
 *'++'* 0+,% 2
 #+($0 ++%$0 2
 *'&, &$ 2
* &$ 2
 '.* -(($0 2
& 2
!-"*-()! !-%"%/%*)
!)!-' )./-0/%*). 4
.%)# /$! -%!" !-"*-()! $!&. -*! 0-!. 4
.%)# /$! !-"*-()! !./. -*! 0-!. 4
*)1!)/%*). 4
-%!" !-"*-()! $!&. 4
*2!-4) !'" !./. 4
0)/%*)' !./. 4
-&,#'&$ +,+ **)-#+#,+ 2
*# 0 ," *' '%(&+,'* -,(-, 2
*# 0 ," &(-, "&&$+ 2
*# 0 ," $,"'( &  -&,#'&+ 2
*# 0 ," #% + 2
*# 0 ," *#!!* 0+,% 2
*# 0 ," /,*&$ *#!!* 2
!(+!-/0-! *(+!)./%*) '%-/%*). 4
'*#1'&,$ .( ," 2
*,#$ #!&$ ," 2
!-"*-()! !./. 4
!-"*-()! !./. -!-!,0%.%/!. 4
,0%+(!)/ !,0%-! 4

Table of Contents
Contents
iv
Vertical System C ecks 6Ć16..................................
)'%,  #*/ #/& 0-5#(' '#463'.'/5 %%63#%: <
)'%, 3*(('3 '7'- %%63#%: <
)'%,  061-*/( #/&8*&5) <
)'%, "<9*4 #*/ <
Horizontal System C ecks 6Ć20................................
)'%, *.' #4' #/& *.' 63403 %%63#%: <
)'%, 6#- '-#: %%63#%: <
Trigger System C ecks 6Ć25...................................
)'%, 3*(('3 '/4*5*7*5: <
Adjustment
Adjustment Procedures 7Ć1......................................
Requirements for Performance 7Ć1...........................
'340//'- <
%%'44 50 &+645.'/54 <
!#3.<1 '3*0& <
Equipment Required 7Ć2.....................................
Performing t e Adjustment Procedures 7Ć2....................
0.1-'5' &+645.'/5 <
#35*#- &+645.'/5 <
&+645.'/5 '1'/&'/%*'4 <
Adjustment Instructions 7Ć4..................................
08'3 611-: &+645.'/5
'3*#- 6.$'3  #/& $07' <
 &+645.'/54 <
08 3'26'/%: 65165 0.1'/4#5*0/ <
#%503: 03*;0/5#- #- <
#%503: '35*%#- #- <
*() 3'26'/%: 5'1 '410/4' <
55'/6#503 0.1'/4#5*0/ <
'35*%#- #*/ &+645 #$*/'5 / <
Maintenance
Maintenance Information 8-1.....................................
Before Servicing 8-1.........................................
Tektronix Service 8-1........................................
!#33#/5: '37*%' 
'1#*3 03 #-*$3#5*0/ '37*%' 
Self Service 8-2.............................................
Preventing ESD 8-2..........................................
64%'15*$*-*5: 50  
Inspection and Cleaning 8-5.....................................

Ta le of Contents
TAS 455 and TAS 465 Instruction Manual v
General Care 8-5............................................
Inspection and Cleaning Procedures 8-5......................
'+),#(' 3 0,*#(* 
%'#'! *(-* 3 0,*#(* 
%'#'! *(-* 3 ',*#(* 
%'#'! ,"  &)%(+#(' "#% 
Removal and Installation Procedures 8-9.........................
Preparation Ċ Please Read 8-9...............................
% &(.% 
'*% '+,*-,#('+ 
-&&*1 ( *(-*+ 
Line Cord and Line Fuse 8-14.................................
#' (* 
#' -+ 
FrontĆPanel Kno s and Shafts 8-15............................
&(.#'! *(',2'% '(+ ' " ,+ 
'+,%%#'! *(',2'% '(+ ' " ,+ 
Feet, Rear Cover, and Ca inet 8-17............................
* (.* 
#', 
)%#'! ," *(', , 
FrontĆPanel Trim, Menu and Power Buttons, EMI Gasket 8-18....
&(.#'! ," *(', *#& 
'- -,,('+ ' %+,(&* 
(/* -,,(' )%&', 
'+,%%#'! ," *(', *#& 
'+,%%#'! ,"  +$,+ 
A62 Front Panel Module Removal 8-21.........................
Menu Flex Circuit Replacement 8-22...........................
A1 Analog Board 8-24.........................................
Display Driver Board (A3) 8-25................................
CRT Implosion Shield 8-26....................................
CRT 8-28.....................................................
 &(.% 
 '+,%%,#(' 
CRT Light Guide 8-31.........................................
CRT Front Bracket 8-32.......................................
A2 Display Control Board 8-32.................................
A63 Power Supply Module 8-33................................
(/* -))%1 &(.% 
(/* -))%1 '+,%%,#(' 
Fan and Fan Mount 8-35......................................
' ' ' (-', &(.% 
' ' ' (-', '+,%%,#(' 

 )# ,$ ,+1#+10
,+1#+10
vi
/,2 )#0&,,1'+% 
/,2 )#0&,,1'+% /,!#"2/# 
.2'-*#+1 
5*-1,* 1/'4 
#-!(%'+% +$,/*1',+ 
#-)!# )# /10
#-)!# )# /10 7
/10 /"#/'+% +$,/*1',+ 7
0'+% 1&# #-)!# )# /10 '01 7
--#+"'!#0
--#+"'4  #1')#" #+2 #0!/'-1',+0 7
#/1'!) 501#* #+20 7
,/'6,+1) 501#* #+20 7
/'%%#/ 501#* #+20 7
   
   
2/0,/ #+20 7
3# +" #!)) #+20 7
1')'15 #+20 7
--#+"'4  21,0#1 ,+1/,) #11'+%0 7
0'+% 1&# 21,0#1 #12/# 7
),00/5
+"#4