Download Service Manual SD-22 & SD-26 Sampling Head 070-7227-02
Transcript
Service Manual SD-22 & SD-26 Sampling Head 070-7227-02 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. Please check for change information at the rear of this manual. First Printing: May 1993 www.tektronix.com "$) *.3425-&.4 -".5'"$452&% #9 &+42/.*8 )"3 " 3&2*", .5-#&2 /. " 0".&, *.3&24 /2 4"( /2 34"-0&% /. 4)& $)"33*3 )& '*234 ,&44&2 *. 4)& 3&2*", .5-#&2 %&3*(."4&3 4)& $/5.429 /' -".5'"$452& )& ,"34 '*6& %*(*43 /' 4)& 3&2*", .5-#&2 "2& "33*(.&% 3&15&.4*",,9 ".% "2& 5.*15& 4/ &"$) *.3425-&.4 )/3& -".5'"$452&% *. 4)& .*4&% 4"4&3 )"6& 3*8 5.*15& %*(*43 )& $/5.429 /' -".5'"$452& *3 *%&.4*'*&% "3 '/,,/73 &+42/.*8 .$ &"6&24/. 2&(/. &+42/.*8 .*4&% *.(%/- 4% /.%/. /.9&+42/.*8 "0". &+42/.*8 /,,".% &&2&.6&&. )& &4)&2,".%3 .3425-&.43 -".5'"$452&% '/2 &+42/.*8 #9 &84&2.", 6&.%/23 /543*%& 4)& .*4&% 4"4&3 "2& "33*(.&% " 47/ %*(*4 ",0)" $/%& 4/ *%&.4*'9 4)& $/5.429 /' -".5'"$452& &( '/2 "0". '/2 /.( /.( '/2 32"&, &4$ &+42/.*8 .$ /8 &"6&24/. 2*.4&% *. /092*()4 E &+42/.*8 .$ ,, 2*()43 2&3&26&% &+42/.*8 02/%5$43 "2& $/6&2&% #9 ".% '/2&*(. 0"4&.43 *335&% ".% 0&.%*.( )& '/,,/7*.( "2& 2&(*34&2&% 42"%&-"2+3 ! ".% : WARRANTY ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! 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. Table of Contents List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Ć1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installing and Removing the Sampling Head . . . . . . . . . . . . . . . Packaging for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ! 1Ć1 1Ć2 1Ć4 1Ć6 1Ć7 $ Checks and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Ć1 Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using These Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " ! # ! ! ! ! ! PartĂ1 PowerĆOn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PartĂ2 Dot Transient Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . PartĂ3 Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PartĂ4 Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PartĂ5 Rise Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PartĂ6 Acquisition Aberrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . PartĂ7 Coincidence Between Channels . . . . . . . . . . . . . . . . . . . . PartĂ8 Maximum Signal Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . PartĂ9 Isolation Between Channels . . . . . . . . . . . . . . . . . . . . . . . . 2Ć3 2Ć5 $ $ $ $ 2Ć8 2Ć10 2Ć16 2Ć20 2Ć23 2Ć26 2Ć30 2Ć33 2Ć36 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Ć1 Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Ć1 $ General Information Checks and Adjustments Maintenance SDĆ22 & SDĆ26 Service Manual i Table of Contents # ! " # # # # Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Ć1 System Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loop Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Offset Null . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Ć1 4Ć2 4Ć3 Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Ć1 Parts Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using the Replaceable Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . 5Ć1 5Ć2 Theory of Operation Replaceable Parts ii Contents List of Figures #!-* 21&)%#'! (&)*,&',+ #' ' ' #!-* 21'+,%%#'! &)%#'! #' ' '+,*-&', #!-* 21(,#('+ ( (',*(%+ ' ('',(*+ (' #' *& '+,*-&',+ #!-* 21&)%#'! *. (,#('+ #!-* 21 #& +(',*(%%* (* -&)* (,#(' #!-* 212 ' 2 &)%#'! %($ #!*& #!-* 21#+)%0 *+ , *#(-+ (() #' ,,#'!+ #!-* 21/)%( #. ( ," 2 ' 2 &)%#'! + SDĆ22 & SDĆ26 Service Manual 2 2 2 2 2 2 2 2 iii iv List of Tables &('!# " "! "! &('!" #" &(' " "! &('"$ #!""% " " !"" ! SDĆ22 & SDĆ26 Service Manual ( ( ( ( v vi General Information ' '(#" *' ( "#&!(#" " (# $$ , $#+& (# ( . . !$ " ' (, "#&!(#" ' + ' "#&!(#" #" "'( " " &!#*" ( '!$ " $" #& '$!"( " "*&#"!"( #"(#"' ') ' #$&(" (!$&()& ' " ) & Introduction ' '" #& )' , %) '&* $&'#"" ( #"("' "#&!(#" "''&, (# " !"(" ( . . !$ " ' . !$ " ' (+#."" #+."#' $' &' (! '!$ " . !$ " ' (+#."" $' &' (! '!$ " . . !$ " ' & '" #& )' " ( &' ( !$ " ' #'#$' ( . ) (. "" "( " ( &' #!!)"(#"' " " ,-&' SDĆ22 & SDĆ26 Service Manual 1Ć1 General Information Safety Summary ! ! # ! ! ! ! Terms in Manuals CAUTION ! ! WARNING ! ! Terms on Equipment CAUTION ! " ! " ! DANGER ! " ! # Symbols in Manuals Static Sensitive Devices Symbols on Equipment DANGER High Voltage Protective ground (earth) terminal ATTENTION Refer to manual Grounding the Instrument ! # ! ! # Danger Arising from Loss of Ground # ! 1Ć2 General Information General Information Do Not Operate in Explosive Atmospheres SDĆ22 & SDĆ26 Service Manual 1Ć3 General Information Installing and Removing the Sampling Head # )# ! '# ' "&'%(!"' &' ' "&'%(!"'& &*' '# #% "&' " #% %!#)" ' &!$ " - - !$ " & "'# ' #" # ' %#"' $" #!$%'!"'& # ' %& ' !$ " & #&#$& #% %& #!!("'#"& " " +,%& (% - &#*& ' %#"' $" # " "&'%(!"' " ' #'#"& # ' &!$ " #!$%'!"'& Sampling Head Compartments 11801B Sampling Head Compartments CSA 803A Power Only Sampling Head Compartments Figure 1Ć1:ăSampling Head Compartments in an 11801B and a CSA 803A 1Ć4 General Information General Information " " !%" !" " " ! "" !%& #! " %" !!# " ! ! !" "# " '% ! % " "" " ! " # ' CAUTION To prevent damage to your instrument or sampling head, never install or remove a sampling head when the ON/STANDBY switch is ON. If the green indicator light remains on when the STANDBY position is selected, then the switch has been left internally disabled after the servicing of the power supply. To enable the ON/STANDBY switch, refer to the Maintenance section of the Service Manual for your mainframe instrument. $ " ! !" #" !" " !" #"! !%" " # " '% ! % " !%& # #" " ! LockĆDown Screw Sampling Head Figure 1Ć2:ăInstalling a Sampling Head in an Instrument SDĆ22 & SDĆ26 Service Manual 1Ć5 General Information Packaging for Shipment #"&& &) ! %(& ' "%! %'"! ! #! '" ' # & #! *! &##! ' , " % '%!&#"%''"! '' ' '" ' & #! ' & &## '" ,"(% " '%"!+ &%) !'% "% &%) "% %#% !( ' ""*! !"% '"! "! ' ' H ! %&& " ' !&'%( !' ! & #! "*!% H " #%&"! ' ,"(% % !' ! & #! H " #' !&'%( !' ! & #! ',# ! &% !( % H &%#'"! " ' &%) %$(% *" ! "!'' "(' ' !&'%(- ' & #! & ""*& ' "%! # & !"' ) "% & !"' ' "% (& ăStep 1:ă '' &"%'-%(' '% !'"!& '" ' & #! !#('& ăStep 2:ă'! "%%(' %"% %'"! *' !& !&"!& ' &' &+ !& %'% '! ' & #! !&"!& & %'"! *' (%&'! '&' &'%!' " ' &' #"(!& #% &$(% ! ăStep 3:ă(, *%# ' & #! *' !'&'' &'! "% '& $()!' '" #%"'' ' !& ăStep 4:ă', # (!! "% (%'! " '*! ' %'"! ! ' & #! '" (&"! ' & #! "! && "* '% !& " #! "! & ăStep 5:ă ' %'"! *' &##! '# "% *' !(&'% &'#& ăStep 6:ă% ' %&& " ' '%"!+ &%) !'% ! ,"(% %'(%! %&& "! ' %'"! ! "! "% "% #%" !!' #& 1Ć6 General Information General Information Operating Environment $ #! "! # ! " ! Operating Temperature ! ! $ ! ! !!" !$ _ _ ! ! ! !!" _ ! _ ! ! ! !!" "! ! ! ! $ ! ! ! ! !!" % $ $ "! $" ! ! ! "% " ! !"! ! " ! ! !!" ! "& ! # ! !"! SDĆ22 & SDĆ26 Service Manual 1Ć7 1Ć8 Checks and Adjustments ) )*%$ %$*$) &(%+() *% ! * )&*%$) $ #)+(1 #$* "#*) ")* $ " 1 &*%$ %( )+(#$* #* ) ")* * * $$$ % &(* ) -"" ) &(%+() %$*$ %$". ! )*&) )$ * 1 1 #&"$ ) , $% $*($" +)*#$*) &(%+() $ *) )*%$ &(%, "%" )'+$ % !) %( &(%(#$ %#&($), &(%(#$ ,(*%$ &(%+( *% ,(. ** * )#&"$ #*) )&*%$) % +$*%$"". *)* * )#1 &"$ &(%(# * &(*) $ " 1 - , /.) $ * +$1 *%$" )* %"+#$ ( *% * %( #%( $%(#1 *%$ %+* )&*%$) $ )#&"$ %&(*%$ ( *% " 1 %( $%(#*%$ %$($$ *)* '+&#$* +) $ * )*+&) TableĂ2Ć1:ăMeasurement Limits and Specifications Part and Description Measurement Limit Specification Functional Test (*0 %-(1$ $%$ $%$ .) (*0 %* ($)$* )&%$) # -* +*%#* "(*%$ v ((%( .) # -* +*%#* "(*%$ v ((%( $% # -* +"* )**$) " ((%( $% -*%+* +*%#* "(*%$ +)* *% $% * (*0 )* )* )* $ -* (&**%$ (* SDĆ22 & SDĆ26 Service Manual " # .) " # $% 2Ć1 Checks and Adjustments TableĂ2Ć1:ăMeasurement Limits and Specifications (Cont.) Part and Description Measurement Limit Specification -/5 *&." )* 6 (+'&)$ "! (**/%&)$ *) (**/%&)$ *## v m v m 6 (+'&)$ "! )! *1" (**/%&)$ *) (**/%&)$ *## v m v ( 6 (+'&)$ "! )! "'*2 (**/%&)$ *) (**/%&)$ *## v m v ( -/5 &." &(" 4". 6 (+'&)$ "! +. 6 (+'&)$ "! +. -/5 ,0&.&/&*) "--/&*). 2&/% .*0- " /* +. +. /* ). ). /* ). ). )! 0+ ). /* +. )* /* " " " " +. -/5 *&) &!") " "/2"") %))"'. -/5 3&(0( &$)' *'/$" -/5 .*'/&*) "/2"") %))"'. 2Ć2 Functional Test *# ./"+ (+'&/0!" )* )* )* Checks and Adjustments Checks and Adjustments Test Equipment Table 2Ć2 lists test equipment suggested for use with this manual. ProceĆ dure steps are based on the test equipment examples given, but other equipment with similar specifications may be substituted. Test results, setup information, and related connectors and adapters may be altered by the use of different equipment. TableĂ2Ć2:ăTest Equipment SDĆ22 & SDĆ26 Service Manual Description Minimum Specification Examples of Applicable Test Equipment 11800 Series Oscilloscope or CSA 803 Series Communications Signal Analyzer Tektronix digital sampling oscilloscope Tektronix 11801/A/B, 11802 Digital Sampling Oscilloscope Tektronix CSA 803, CSA 803A Communications Signal Analyzer Pulse Generator 1 ns rise time, 5 V outĆ put, 10 Hz to 250 MHz frequency range Tektronix PG 502 Pulse Generator with a TM 500 Series Power Module Time Mark Generator 1 ns through 5 s markers in a 1-2-5 sequence, at least 5 parts in 10& accuracy Tektronix TG 501A Time Mark Generator with a TM 500 Series Power Module Calibration Generator DC output, 0.5% accuracy 1 V output amplitude Tektronix PG 506A Calibration Generator with a TM 500 Series Power Module Calibration Step Generator Tektronix Part 067-1338-0X Calibration Step Generator (where X represents either a 0, 1, 2, 3, 5, or 6; depending on the power supply approĆ priate for your country. Refer to Section 5, ) System Controller Any compatible controlĆ ler with MS DOS and a serial port configured for COM 1 IBM compatible PC with terminal emulation software 50 W Termination, SMA connectors Impedance 50 W, SMA male connector Tektronix Part 015-1022-00 50 W Termination, BNC connectors Impedance 50 W, BNC connectors Tektronix Part 011-0049-01 Short Circuit Termination, SMA connectors Male SMA compatible Tektronix Part 015-1020-00 Coaxial Cable, 50 W (2 required) 50 W, 36Ćinch, BNC male connectors Tektronix Part 012-0482-00 Serial Cable 10Ćft RSĆ232ĆC Cable Tektronix Part 012-0911-00 2Ć3 Checks and Adjustments TableĂ2Ć2:ăTest Equipment (Cont.) Description Minimum Specification Examples of Applicable Test Equipment !%# % #"&# % %# ) #% %%&% # %%&% %# ) #% %%&% # %%&% %# ) #% #$% %#! %# ) #% %% %# % %# ) #% + $ #$ *#' #(#'# 2Ć4 %! Checks and Adjustments Checks and Adjustments Using These Procedures &(* $) -* )*+& ""+)*(*%$ ** )%-) * *)* '+&#$* $ %- *% %$$* * ( *% " 1 %( $ .#&" % * *)* '+&#$* %( &(* Conventions in this Manual $ *) &(%+() * %""%-$ %$,$*%$) ( +) H "**() -*$ * %/ % *.* $*/ (%$* &$" %$*(%") $*%() $ %$$*%() %( .#&" %$ * %)""%)%& $ )#&"$ H Bold "**() $*/ #$+ "") $ )&"/ #))) H $*" &*" "**() $*/ %$$*%() %$*(%") $ $*%() %( .#&" %)*%$ %$ ))%* *)* '+&#$* $*" &*" "**() ")% $*/ +)*#$*) $) * )#&"$ $ )%# )*&) * ()* -%( ) *"0 *% $*/ )*& ** %$*$) &(%(#$ ,(*%$ $%( $ +)*#$* $)*(+*%$ %( .#&" Check ) * ()* -%( $ * **" % )*& $ "*(" )&*%$ ) ! Adjust &&() $ * **" * )*& $,%",) $ "*(" +)*1 #$* Examine ) * ()* -%( $ * **" * )*& %$($) #)+(#$* "#*) ** $* -*( * )#&"$ ) %&(*$ &(%&("/ *) "#*) ( $%* *% $*(&(* ) "*(" )&*%$) Initialized and Stored Settings * * $$$ % #%)* )*&) * +)( ) $)*(+* *% Initialize * $)*(+1 #$* ) &(* % * )*+& Initialize *+( ,"" *(%+ * #$+ &()*) "" $)*(+#$* %$*(%") $ +$*%$) *% !$%-$ ,"1 +) $*"0$ * $)*(+#$* * * $$$ % )*& "#$*) * &%))"*/ % )**$) (%# &(,%+) &(*) +)$ ((%$%+) %( %$+)$ ()+"*) Menu Selections and Measurement Techniques *") %$ #)+(#$* *$'+) $ $)*(+*%$) %( #!$ #$+ )"*%$) ( $(""/ $%* $"+ $ *) #$+" %#&($), 1 )(&*%$) % #$+) $ $)*(+#$* #$(# *+() ( "%* $ * User Manual %( /%+( $)*(+#$* $ * SDĆ22 & SDĆ26 Sampling Heads User Manual SDĆ22 & SDĆ26 Service Manual 2Ć5 Checks and Adjustments Setup Illustrations % %# ) "# $ ## " $ "# %$# )*" # $ " #$"%$ $# "%"# +" #$"%$ # #' "%" $ ($ $ $"# )%" " #$"%$ ) " " $$ #' $ %#$"$ "$%" $ ## "# %$# )*" & ) $' # !%#$ "$$# # " $ %" $ "# ## # $# $"# $"# #$"%$ " #' %" , 2Ć6 Checks and Adjustments Checks and Adjustments 11801 Left Sampling Head Compartment Calibrator Output Trigger Input Internal Clock Output 11802 Left Sampling Head Compartment Calibrator Output Trigger Input Internal Clock Output 11801A and 11801B Left Sampling Head Compartment Calibrator Output Antistatic Connection Trigger Input Internal Clock Output CSA 803 and CSA 803A Left Sampling Head Compartment Calibrator Output Antistatic Connection Trigger Inputs Internal Clock Output Figure 2Ć1:ăLocations of Controls and Connectors on Mainframe Instruments SDĆ22 & SDĆ26 Service Manual 2Ć7 Checks and Adjustments PartĂ1 PowerĆOn !,"),' .$%- *,. 0%.$%( .$! '%!(. .!'*!,./,! ,(#! )" _ .) _ Setup to PowerĆon 11801B Sampling Head CSA 803A Sampling Head Procedure to PowerĆOn ăStep 1:ă!. .$! ")&&)0%(# %( .$! ), !, &%-.! '*&%(# ! ). %(-.&&! 1!. (-.,/'!(. %(",'! -0%.$ ăStep 2:ă(-.&& .$! 2 ), 2 -'*&%(# $! %( .$! &!". *&/#2%( )'*,.'!(. ăStep 3:ă%.$ .$! %(-.,/'!(.- ,!, *(!& -!. .) )((!. .$! %(-.,/'!(. .) -/%.&! *)0!, -)/,! ăStep 4:ă!. .$! ,!, *(!& .) ( .$!( .$! %(-.,/'!(.- ",)(. *(!& -0%.$ .) $!( .$! %(-.,/'!(. %- "%,-. %(-.&&! .$! ,!, *(!& -$)/& ! -!. .) ( ,!'%( %( .$! *)-%.%)( $!( /-! .$! ",)(. *(!& -0%.$ .) *!,"),' && -/-!+/!(. *)0!, -0%.$%(# 2Ć8 Checks and Adjustments Checks and Adjustments ăStep 5:ă H H H H H SDĆ22 & SDĆ26 Service Manual 2Ć9 Checks and Adjustments PartĂ2 Dot Transient Response ! Measurement Limits H v H " Specifications 2Ć10 Checks and Adjustments Checks and Adjustments Setup to Check Dot Transient Response CH 1 11801B 5X Attenuator Pulse Generator )!) ,+',+ % 2X Attenuator (not connected yet) Internal Clock Output CSA 803A CH 1 5X Attenuator Pulse Generator )!) ,+',+ % Internal Clock Output 2X Attenuator (not connected yet) Procedure to Check Dot Transient Response ăStep 1:ă%!+!#!0 + !%*+),$%+ *++!%* + % $" + &##&.!% *+1 +!%* !% + &)) #!*+ $'#!% % % %*+),$%+ !%)$ Vert Size: M1 $!-!*!&% ,++&% ')** Source Internal Clock Main Pos Min Main Size %*!-!*!&% ,#* %)+&) " )$!%+&) ,++&% ',## &,+ )!) &,) /+)%# )!) ,+',+ *(,) .- SDĆ22 & SDĆ26 Service Manual 2Ć11 Checks and Adjustments Examine dot response at 250 mV with automatic calibration setĆ tings 9 #7 0&1'/1-*.( 3&02 3)1/4() ăStep 2:ă&3 3)& 04,2& (&.&1"3/12 "-0,*34%& '/1 " - %*20,"7 ăStep 3:ă&3 3)& Vert Offset : MI 2/ 3)"3 3)& 23&0 *2 "001/6*-"3&,7 $&.8 3&1&% /. 3)& 2$1&&. ăStep 4:ă1&22 3)& ! #433/. ".% 3/4$) Enhanced Accuracy ".% &1*&2 /1 01&22 3)& ! #433/. ăStep 5:ă/4$) Loop Gain ăStep 6:ă/4$) Automatic Calibrate, ".% 3)&. Proceed *. 3)& Loop Gain Calibration 0/0840 -&.4 ăStep 7:ă/4$) Exit *. 3)& Loop Gain ",*#1"3*/. 0/0840 -&.4 ăStep 8:ă&3 3)& 04,2& (&.&1"3/12 "-0,*34%& '/1 " - 23&0 %*20,"7 ăStep 9:ă1&22 3)& #433/. ".% 3)&. 3/4$) Horizontal Desc ăStep 10:ă/4$) Main Record Length *. 3)& Horizontal Description 0/0840 -&.4 ".% 3)&. 2&3 3)& 3/0 +./# '/1 " Main Record Length /' ăStep 11:ă1&22 3)& ! #433/. ".% 3)&. Instr Options ăStep 12:ă&3 Vectored Trace 3/ Off *. 3)& Instrument Options 0/0840 -&.4 ăStep 13:ă/4$) Display Intensity *. 3)& Instrument Options 0/0840 -&.4 ".% 3)&. 2&3 3)& 3/0 +./# '/1 90% *.3&.2*37 ăStep 14:ă/4$) Exit ăStep 15:ă/4$) Cursors /. 3)& 3/0 /' 3)& 2$1&&. ăStep 16:ă/4$) Cursor Type ".% 3)&. Horizontal Bars *. 3)& Cursor Type 0/0840 -&.4 ăStep 17:ă/4$) Exit. ăStep 18:ă&3 Cursor 1 3/0 +./# 3/ 3)& "5&1"(& /' 3)& #/33/- /' 3)& 04,2& #&'/1& 3)& 23&0 ăStep 19:ă&3 Cursor 2 #/33/- +./# 3/ 3)& 3/0 /' 3)& 23&0 ăStep 20:ă&"% DV "2 3)& 0&"+83/80&"+ 23&0 "-0,*34%& ".% 3)&. 1&$/1% 3)*2 5",4& "2 V '/1 ,"3&1 42& ăStep 21:ă1&22 3)& ! #433/. ".% 3/4$) Enhanced Accuracy ".% &1*&2 /1 01&22 3)& ! #433/. ăStep 22:ă/4$) Loop Gain ".% 3)&. 3)& $)"..&, 7/4 "1& 42*.( *. 3)& Loop Gain Calibration 0/0840 -&.4 2Ć12 Checks and Adjustments Checks and Adjustments ăStep 23:ă$1 1'$ Divide by Two Mode 1- On (, 1'$ Loop Gain Calibration .-.52. +$,2 ăStep 24:ă -2"' Exit (, 1'$ Loop Gain Calibration .-.52. +$,2 ăStep 25:ă-2"' Cursors 1 1'$ 1-. -% 1'$ 0"/$$, ăStep 26:ă$1 Cursor 1 1- 1'$ 3$/ &$ -% 1'$ !-11-+ -% 1'$ .2*0$ !$%-/$ 1'$ 01$. ăStep 27:ă$1 Cursor 2 1- 1'$ 3$/ &$ -% 1'$ !-11-+ -% 1'$ .2*0$ 2,#$/ 1'$ 01$. ăStep 28:ă$ # DV ,# 1'$, /$"-/# 1'(0 3 *2$ 0 VL %-/ * 1$/ 20$ ăStep 29:ă$1 Cursor 2 1- 1'$ 3$/ &$ -% 1'$ 1-. -% 1'$ .2*0$ ăStep 30:ă$ # DV ,# 1'$, /$"-/# 1'(0 3 *2$ 0 VH %-/ * 1$/ 20$. ăStep 31:ă 1' 1 1'$ ,$& 1(3$ #-1 /$0.-,0$ $//-/ VL/VH (0 " ăStep 32:ă 1' 1 1'$ .-0(1(3$ #-1 /$0.-,0$ $//-/ VHV)VVL (0 v Check dot response at 500 mV with automatic calibration setĆ tings 6 !4 .$/%-/+(,& 1$.0 1'/-2&' ăStep 33:ă/$00 1'$ !211-, ,# 1-2"' Enhanced Accuracy ,# $/($0 -/ ./$00 1'$ !211-, ăStep 34:ă-2"' Loop Gain ăStep 35:ă$1 Divide by Two Mode 1- Off (, 1'$ Loop Gain Calibration .-.52. +$,2 ăStep 36:ă-2"' Exit ăStep 37:ă$1 1'$ Vert Size:M1 1- +#(3 ăStep 38:ă$1 1'$ .2*0$ &$,$/ 1-/0 +.*(12#$ %-/ + 01$. #(0.* 4 ăStep 39:ă-2"' Cursors -, 1'$ 1-. -% 1'$ 0"/$$, ăStep 40:ă$1 Cursor 1 1- 1'$ 3$/ &$ -% 1'$ !-11-+ -% 1'$ .2*0$ !$%-/$ 1'$ 01$. ăStep 41:ă$1 Cursor 2 1- 1'$ 3$/ &$ -% 1'$ 1-. -% 1'$ .2*0$ ăStep 42:ă$ # DV 0 1'$ .$ )51-5.$ ) 01$. +.*(12#$ ,# 1'$, /$"-/# 1'(0 3 *2$ 0 V %-/ * 1$/ 20$ ăStep 43:ă/$00 1'$ !211-, ,# 1-2"' Enhanced Accuracy ,# $/($0 -/ ./$00 1'$ !211-, SDĆ22 & SDĆ26 Service Manual 2Ć13 Checks and Adjustments ăStep 44:ă-2#( Loop Gain !,$ 1(%, 1(% #(!,,%* ,2+"%/ 4-2 !/% 20),' ), 1(% Loop Gain Calibration .-.52. +%,2 ăStep 45:ă%1 Divide by Two Mode 1- On ), 1(% Loop Gain Calibration .-.52. +%,2 ăStep 46:ă-2#( Cursors !1 1(% 1-. -& 1(% 0#/%%, ăStep 47:ă%1 Cursor 1 1- 1(% !3%/!'% -& 1(% "-11-+ -& 1(% .2*0% "%&-/% 1(% 01%. ăStep 48:ă%1 Cursor 2 1- 1(% !3%/!'% -& 1(% "-11-+ -& 1(% .2*0% !&1%/ 1(% 01%. ăStep 49:ă%!$ 1(% DV 3!*2% !,$ 1(%, /%#-/$ 1()0 3!*2% !0 VL &-/ *!1%/ 20% ăStep 50:ă%1 Cursor 2 1- 1(% !3%/!'% -& 1(% 1-. -& 1(% .2*0% ăStep 51:ă%!$ DV !,$ 1(%, /%#-/$ 1()0 3!*2% !0 VH &-/ *!1%/ 20% ăStep 52:ă 1(!1 1(% ,%'!1)3% $-1 /%0.-,0% %//-/ VL VH )0 v ăStep 53:ă 1(!1 1(% .-0)1)3% $-1 /%0.-,0% %//-/ VHV)VVL )0 v Check dot response at 500 mV with default settings 6 "4 .%/&-/+5 ),' 1%.0 1(/-2'( ăStep 54:ă/%00 1(% "211-, !,$ 1-2#( Enhanced Accuracy !,$ %/)%0 -/ ./%00 1(% "211-, ăStep 55:ă-2#( Loop Gain ăStep 56:ă-2#( Recall Defaults ), 1(% Loop Gain Calibration .-.52. +%,2 ăStep 57:ă-2#( Exit ăStep 58:ă-2#( Cursors !1 1(% 1-. -& 1(% 0#/%%, ăStep 59:ă%1 Cursor 1 1- 1(% !3%/!'% -& 1(% "-11-+ -& 1(% .2*0% "%&-/% 1(% 01%. ăStep 60:ă%1 Cursor 2 1- 1(% !3%/!'% -& 1(% "-11-+ -& 1(% .2*0% !&1%/ 1(% 01%. ăStep 61:ă%!$ 1(% DV 3!*2% !,$ 1(%, /%#-/$ 1()0 3!*2% !0 VL &-/ *!1%/ 20% ăStep 62:ă%1 Cursor 2 1- 1(% !3%/!'% -& 1(% 1-. -& 1(% .2*0% !,$ /%!$ DV %#-/$ 1()0 3!*2% !0 VH ăStep 63:ă 1(!1 1(% ,%'!1)3% $-1 /%0.-,0% %//-/ VL/ VH )0 v 2Ć14 Checks and Adjustments Checks and Adjustments Check dot response at 1V with manual calibration settings 8 "6 .%/&-/+),' 1%.0 1(/-2'( ăStep 64:ă/%00 1(% "211-, !,$ 1-2#( Enhanced Accuracy !,$ %/)%0 -/ ./%00 1(% "211-, ăStep 65:ă-2#( Loop Gain ăStep 66:ă%1 1(% Divide by Two Mode 1- Off ), 1(% Loop Gain Calibration .-.72. +%,2 ăStep 67:ă-2#( Exit. ăStep 68:ă%+-3% 1(% !11%,2!1-/ !,$ 1(%, #-,,%#1 1(% !11%,2!1-/ "%14%%, 1(% #(!,,%* 6-2 !/% 20),' !,$ 1(% #-!5)!* #!"*% ăStep 69:ă%1 1(% Vert Size:M1 1- +$)3 ăStep 70:ă%1 1(% .2*0% '%,%/!1-/0 !+.*)12$% &-/ ! " 01%. $)0.*!6 ăStep 71:ă/%00 1(% "211-, !,$ 1-2#( Enhanced Accuracy !,$ %/)%0 -/ ./%00 1(% "211-, ăStep 72:ă-2#( Loop Gain ăStep 73:ă-2#( 1(% #(!,,%* ,2+"%/ 6-2 !/% 20),' ), 1(% Loop Gain Calibration .-.72. +%,2 ăStep 74:ă%1 1(% Divide by Two Mode 1- On !,$ 1(%, 1-2#( Manual Calibrate ), 1(% Loop Gain Calibration .-.72. +%,2 ăStep 75:ă-2#( Exit ăStep 76:ă 1(!1 1(% !+.*)12$% -& 1(% .2*0% +%!02/%$ &/-+ 1(% !3%/!'% -& 1(% *%3%* 2,$%/ 1(% .2*0% 1- 1(% !3%/!'% -& 1(% 1-. -& 1(% .2*0% #!, "% 0%1 4)1( 1(% +!,2!* #!*)"/!1)-, 0%11),'0 1- "% w ăStep 77:ă%.%!1 1%.0 1(/-2'( &-/ SDĆ22 & SDĆ26 Service Manual 2Ć15 Checks and Adjustments PartĂ3 Offset Measurement Limits " Specifications " Setup to Examine Offset W 11801B CSA 803A 2Ć16 W Checks and Adjustments Checks and Adjustments Procedure to Examine Offset ăStep 1:ă.)3)!,)7% 3(% ).2314-%.3 2%33).'2 3(%. -!+% 3(% &/,,/6).' 2%38 3).'2 ). 3(% /1$%1 ,)23%$ !-0,).' %!$ .&& . .2314-%.3 !).&1!-% "433/. 01%22 Source Internal Clock "433/. 01%22 "433/. %1)%2 01%22 Enhanced Accuracy %1)%2 3/4#( Calibrate All 0/0840 -%.4 Recall Defaults ăStep 2:ă/4#( Offset Null ). 3(% Enhanced Accuracy -%.4 ăStep 3:ă/4#( Manual Calibrate ). 3(% Offset Nulling 0/0840 -%.4 ăStep 4:ă/4#( 3(% Offset Null: M1 2%,%#3/1 0 !.$ 3(%. Enter ). 3(% Numeric Entry & Knob Res 0/0840 -%.4 ăStep 5:ă/4#( 3(% 5%13)#!, )#/. !.$ 3(%. 2%3 Vert Size: M1 3/ āā-$)5 ăStep 6:ă1%22 3(% "433/. ăStep 7:ă/4#( Measurements !.$ 3(%. Mean ). 3(% Measurements 0/0840 -%.4 ăStep 8:ă/4#( Mean ). 3(% -!*/1 -%.4 !.$ 3(%. 2%3 Data Interval 3/ whole zone ). 3(% Mean 0/0840 -%.4 ăStep 9:ă 3(!3 Mean )2 " - ăStep 10:ă1%22 3(% "433/. !.$ 3/4#( Enhanced Accuracy !.$ %1)%2 /1 01%22 3(% "433/. ăStep 11:ă/4#( Offset Null ăStep 12:ă/4#( Automatic Calibrate !.$ 3(%. Proceed ). 3(% Offset Nulling 0/0840 -%.4 ăStep 13:ă1%22 3(% "433/. ăStep 14:ă 3(!3 3(% Mean /&&2%3 )2 " - ăStep 15:ă%0%!3 3%02 3(1/4'( &/1 SDĆ22 & SDĆ26 Service Manual 2Ć17 Checks and Adjustments Setup to Check Offset Change with Repetition Rate 11801B W Time Mark Generator 10-10 W W W CSA 803A Time Mark Generator 10-10 W W Procedure to Check Offset Change with Repetition Rate ăStep 1:ă+&0&)&3" 0%" &+/0.1*"+0 /"00&+$/ 0%"+ *(" 0%" #,)),2&+$ /"04 0&+$/ &+ 0%" ,.!". )&/0"! *-)&+$ "! +## + +/0.1*"+0 &+#.*" 100,+ -."// 100,+ ".&"/ -."// Enhanced Accuracy ".&"/ 0,1 % Calibrate All -,-41- *"+1 Recall Defaults &*" .( "+".0,. .(". /" m/ ăStep 2:ă."// 0%" 100,+ +! 0%"+ 0,1 % Level ăStep 3:ă!'1/0 0%" Trig Level 1+0&) 0. " --"./ 2Ć18 Checks and Adjustments Checks and Adjustments ăStep 4:ă,1 % 0%" 2".0& ) & ,+ +! 0%"+ /"0 0%" Vert Size: M1 0, *!&2 ăStep 5:ă"0 Vert Offset: M1 /, 0%0 0%" 0. " &/ 2".0& ))4 "+0"."! ,+ 0%" / .""+ ăStep 6:ă"0 0%" 0&*" *.( $"+".0,./ *.(". /"00&+$ 0, */ ăStep 7:ă."// 0%" 100,+ +! 0%"+ 0,1 % Acquire Desc ăStep 8:ă"0 Average N 0, On +! 0%"+ 0,1 % Set Avg N ăStep 9:ă"0 Average N 0, 8 3&0% 0%" 0,- (+, ăStep 10:ă&0 1+0&) 0%" Acquire Desc /")" 0,. &+ 0%" *',. *"+1 /%,3/ 0%0 "&$%0 2".$"/ %2" ""+ ,*-)"0"! ăStep 11:ă."// 0%" 100,+ ăStep 12:ă,1 % Measurements +! 0%"+ Mean &+ 0%" Measurements -,-51- *"+1 ăStep 13:ă,1 % Compare & References &+ 0%" *',. *"+1 ăStep 14:ă,1 % Save Current Meas Values as References +! 0%"+ /"0 Compare 0, On ăStep 15:ă"0 0%" 0&*" *.( $"+".0,./ *.(". /"00&+$ 0, */ ăStep 16:ă&0 1+0&) 0%" Acquire Desc /")" 0,. &+ 0%" *',. *"+1 /%,3/ 0%0 "&$%0 2".$"/ %2" ""+ ,*-)"0"! ăStep 17:ă 0%0 DMean ,##/"0 3&0% ."-"0&0&,+ .0" &/ " * ăStep 18:ă,+0&+1" 0, !" ."/" 0%" 0&*" *.( $"+".0,./ *.(". /"05 0&+$ +! ."-"0 0"- #,. " % /"00&+$ !,3+ 0, m/ ăStep 19:ă."// 0%" 100,+ ăStep 20:ă&/ ,++" 0 0%" W 0".*&+0&,+ #.,* 0%" &+-10 +! ,++" 0 &0 0, 0%" &+-10 ăStep 21:ă"-"0 0"-/ 0%.,1$% #,. SDĆ22 & SDĆ26 Service Manual 2Ć19 Checks and Adjustments PartĂ4 Noise Measurement Limits SDĆ22 m m Measurement Limits SDĆ26 (SN B020440 and above) m Measurement Limits SDĆ26 (SN B010339 and below) m Setup to Examine Noise 11801B CH 1 50 W Termination (not connected yet) 12I RF Cable CH 1 50 W Termination CSA 803A (not connected yet) 2Ć20 12I RF Cable Checks and Adjustments Checks and Adjustments Procedure to Examine Noise ăStep 1:ă/*4*"-*9& 4)& */3425.&/4 3&44*/(3 4)&/ .",& 4)& '0--07*/( 3&4: 4*/(3 */ 4)& 02%&2 -*34&% ".1-*/( &"% /'' / /3425.&/4 "*/'2".& #5440/ 12&33 Source Internal Clock ! #5440/ 12&33 ! #5440/ &2*&3 12&33 Enhanced Accuracy &2*&3 405$) Calibrate All 101:51 .&/5 Recall Defaults ăStep 2:ă05$) Loop Gain */ 4)& Enhanced Accuracy .&/5 ăStep 3:ă*3$0//&$4 4)& 4&2.*/"4*0/ '20. 4)& */154 "/% $0/: /&$4 4)& 40 4)& */154 4)205() 4)& :*/$) $"#-& ăStep 4:ă05$) 4)& $)"//&- /5.#&2 805 "2& 53*/( Automatic Calibrate, "/% 4)&/ Proceed */ 4)& Loop Gain Calibration 101:51 .&/5 ăStep 5:ă*3$0//&$4 4)& '20. 4)& */154 "/% 2&$0/: /&$4 4)& 4&2.*/"4*0/ ăStep 6:ă2&33 4)& #5440/ "/% 4)&/ 405$) Acquire Desc. ăStep 7:ă&4 Average N 40 On ăStep 8:ă2&33 4)& #5440/ ăStep 9:ă05$) 4)& 6&24*$"- *$0/ &4 4)& Vert Size: M1 40 .%*6 ăStep 10:ă05$) Def Tra "4 4)& 401 0' 4)& 3$2&&/ ăStep 11:ă/ 4)& Vertical Description 101:51 .&/5 405$) 4)& '0--07*/( 3&-&$4023 */ 4)& 02%&2 (*6&/ Mainframe &2*&3 1 - Avg ( Mainframe &2*&3 1 ) Enter Desc ăStep 12:ă2&33 4)& #5440/ "/% 4)&/ 405$) Measurements ăStep 13:ă05$) RMS */ 4)& Measurements 101:51 .&/5 "/% 4)&/ RMS */ 4)& ."+02 .&/5 ăStep 14:ă&4 Data Interval 40 whole zone */ 4)& RMS 101:51 .&/5 SDĆ22 & SDĆ26 Service Manual 2Ć21 Checks and Adjustments ăStep 15:ă /&/ RMS '. v $+- /&# 3 ),('*% #" /&/ RMS '. v ) $+- /&# 3 ),('*% #" *" +1# /&/ RMS '. v ) $+- /&# 3 ),('*% #" #(+2 ăStep 16:ă-#.. /&# 0//+* ăStep 17:ă+0!& Sampling Head Fnc's *" /&#* .#/ Smoothing /+ On '* /&# Sampling Head Functions ,+,30, )#*0 ăStep 18:ă-#.. /&# 0//+* ăStep 19:ă /&/ RMS '. v $+- /&# 3 ),('*% #" /&/ RMS '. v $+- /&# 3 ),('*% #" *" +1# /&/ RMS '. v $+- /&# 3 ),('*% #" #(+2 ăStep 20:ă#,#/ /#,. /&-+0%& $+- 2Ć22 Checks and Adjustments Checks and Adjustments PartĂ5 Rise Time " ! ! Specifications $ $ $ Setup to Check Rise Time 11801B Calibration Step Generator Calibration Step Generator Calibration Step Generator " !# ! # CSA 803A Calibration Step Generator Calibration Step Generator Calibration Step Generator " !# ! # SDĆ22 & SDĆ26 Service Manual 2Ć23 Checks and Adjustments Procedure to Check Rise Time ăStep 1:ă/*4*"-*9& 4)& */3425.&/4 3&44*/(3 4)&/ .",& 4)& '0--07*/( 3&4: 4*/(3 */ 4)& 02%&2 -*34&% ".1-*/( &"% /'' / /3425.&/4 "*/'2".& ! #5440/ 12&33 ! #5440/ &2*&3 12&33 Enhanced Accuracy &2*&3 405$) Calibrate All 101:51 .&/5 Recall Defaults #5440/ 12&33 Source Internal Clock "-*#2"4*0/ 34&1 (&/&2"402 ! 37*4$) ăStep 2:ă2&33 4)& #5440/ ăStep 3:ă2&33 4)& #5440/ "/% 4)&/ 405$) Horizontal Desc ăStep 4:ă05$) Main Record Length "/% 4)&/ 3&4 Main Record Len 40 7*4) 4)& 401 ,/0# ăStep 5:ă05$) Acquire Desc */ 4)& ."+02 .&/5 ăStep 6:ă&4 Average N 40 On "/% 4)&/ 405$) Set Avg N ăStep 7:ă&4 Average N 40 7*4) 4)& 401 ,/0# ăStep 8:ă05$) 4)& )02*90/4"- /3%*6 *$0/ "/% 4)&/ 3&4 4)& Main Size 40 ăStep 9:ă05$) Main Pos "/% 4)&/ Set to Min */ 4)& Numeric Entry & Knob Res 101:51 .&/5 ăStep 10:ă2&33 4)& #5440/ ăStep 11:ă05$) Measurements "/% 4)&/ Rise */ 4)& Measurements 101:51 .&/5 ăStep 12:ă05$) Rise */ 4)& ."+02 .&/5 "/% 4)&/ 3&4 Tracking 40 Off */ 4)& Rise 101:51 .&/5 ăStep 13:ă&4 4)& Main Size 40 /3%*6 ăStep 14:ă05$) Baseline */ 4)& Rise 101:51 .&/5 ăStep 15:ă05$) " #-"/, 1024*0/ 0' 4)& 3$2&&/ 40 &8*4 4)*3 .&/5 ăStep 16:ă&4 4)& Baseline #0440. ,/0# 40 4)& "6&2"(& 0' 4)& #0440. 0' 4)& 15-3& /3 #&'02& 4)& 34&1 ăStep 17:ă05$) 4)& )02*90/4"- *$0/ "/% 4)&/ 3&4 4)& Main Pos 30 4)"4 4)& 34&1 *3 "4 4)& -&'4:.034 &%(& 0' 4)& 3$2&&/ 2Ć24 Checks and Adjustments Checks and Adjustments ăStep 18:ă( ( Main Size ($ %'* ăStep 19:ă( ( Main Pos '$ (( ( '(% ' %%&$,"(!- #(& $# ( '&# ăStep 20:ă$) Rise # ( " $& "#) ăStep 21:ă$& ( Mean *!) # ( Rise %$%/)% "#) $& !(& )' ăStep 22:ă!)!( ( '"%!# &' (" +( ( $!!$+# $&")! sampling. head + ǸMean : value ćCalibration. Step. Generator. rise rise. time NOTE Calibration Step Generation rise is read from the calibration step generator. ăStep 23:ăCheck (( ( / "%!# &' (" ' v %' $& (( ( / "%!# &' (" ' v %' ăStep 24:ă%( (%' (&$) $& SDĆ22 & SDĆ26 Service Manual 2Ć25 Checks and Adjustments PartĂ6 Acquisition Aberrations ! # ! !" ! ! " ! " ! ! Measurement Limits "! ! " ! ! ! $ ! ! TableĂ2Ć3:ăAberration Specifications 2Ć26 Time Difference from the Rising Edge of Waveform Minimum Specification ! v ! v ! v ! v ! v ! v " v ! v ! v ! v Checks and Adjustments Checks and Adjustments Setup to Examine Acquisition Aberrations 11801B Calibration Step Generator Calibration Step Generator Calibration Step Generator +1"0,,(2 -&$$"*,0/ * /*!2 CSA 803A Calibration Step Generator Calibration Step Generator Calibration Step Generator +1"0,,(2 -&$$"*,0/ * /*!2 Procedure to Examine Acquisition Aberrations ăStep 1:ă*&/&(&3" /%" &*./-0)"*/ ."//&*$. /%"* )'" /%" #+((+1&*$ ."/4 /&*$. &* /%" +-!"- (&./"! ),(&*$ "! *## * *./-0)"*/ &*#-)" 0//+* ,-".. 0//+* "-&". ,-".. Enhanced Accuracy "-&". /+0 % Calibrate All ,+,40, )"*0 Recall Defaults 0//+* ,-".. Source Internal Clock (&-/&+* /", "*"-/+ .1&/ % SDĆ22 & SDĆ26 Service Manual 2Ć27 Checks and Adjustments ăStep 2:ă*++ ," -,,(' ' ,"' ,(-" Acquire Desc ăStep 3:ă, Average N ,( On ' ,"' ,(-" Set Avg N ăStep 4:ă, Average N ,( /#," ," ,() $'( ăStep 5:ă*++ ," -,,(' ăStep 6:ă(-" ," "(*#1(',% '+#. #(' ' ,"' +, ," Main Size ,( ăStep 7:ă, ," Main Pos +( ,", ," *#+#'! ! ( ," +,) #+ , ," % ,2&(+, ! ( ," +*' ăStep 8:ă(-" ," .*,#% #(' ' ,"' +, ," Vert Offset:M1 +( ,", ," .*! ( ," ,() ( ," )-%+ ,/' '+ ,* ," +,) ' ," *#!", ! ( ," +*' #+ , ," "(*#1(',% ',*%#' ăStep 9:ă, ," Vert Size: M1 ,( &#. ăStep 10:ă(-" Vert Offset: M1 ' ,"' Fine #' ," Numeric Entry & Knob Res )()2-) &'- ăStep 11:ă, Vert Offset: M1 +( ,", ," .*! ( ," ,() ( ," )-%+ ,/' '+ ,* ," +,) ' ," *#!", ! ( ," +*' #+ , ," "(*#1(',% ',*%#' ăStep 12:ă ,", ," &!'#,- ( ," &0#&-& )(+#,#. ' '!,#. **,#('+ ,", (-* '+ ,* ," +,) #+ v .*,#% #.#+#('+ *(& ," "(*#1(',% ',*%#' ( ," +,) &)%#,- ăStep 13:ă(-" ," "(*#1(',% '+#. #(' ' ,"' +, ," Main Size ,( ăStep 14:ă, ," Main Pos +( ,", ," *#+#'! ! ( ," +,) #+ , ," % ,2&(+, ! ( ," +*' ăStep 15:ă ,", ," &!'#,- ( ," &0#&-& )(+#,#. ' '!,#. **,#('+ ,", (-* ,/' '+ ' '+ ,* ," +,) #+ v .*,#% #.#+#('+ *(& ," "(*#1(',% ',*%#' ( ," +,) &)%#,- ăStep 16:ă, ," Main Size ,( )+#. ' ,"' ," Main Pos +( ,", ," *#+#'! ! ( ," +,) #+ , ," % ,2&(+, ! ( ," +*' ăStep 17:ă ,", ," &!'#,- ( ," &0#&-& )(+#,#. ' '!,#. **,#('+ ,", (-* ,/' )+ ' '+ ,* ," +,) #+ v .*,#% #.#+#('+ *(& ," "(*#1(',% ',*%#' ( ," +,) &)%#,- ăStep 18:ă(-" ," "(*#1(',% '+#. #(' ' ,"' +, ," Main Size ,( ăStep 19:ă(-" ," .*,#% #(' ' ,"' +, ," Vert Size:M1 ,( &#. 2Ć28 Checks and Adjustments Checks and Adjustments ăStep 20:ă" " Vert Offset:M1 ! "" " $ " " " #! "% ! " " !" " " " ! ! " " '" " ăStep 21:ă# " '" ! " !" " Main Size " ăStep 22:ă" " Main Pos ! "" " ! " !" ! " " "(!" " ! ăStep 23:ă "" " "# " &# !"$ ( " "" # ! " !" ! " " !" ! v $ " $!! " '" " " !" "# ăStep 24:ă "" " "# " &# "$ ( " "" # ! " !" ! " " !" ! v $ " $( !! " '" " " !" "# ăStep 25:ă# " Main Pos !" " Set to Min " Numeric Entry and Knob Res (# # ăStep 26:ă" " Main Size " !$ ăStep 27:ă# " $ " " !" Vert Offset:M1 ! "" " $ " "" " #! ! " !" ! " " '" " ăStep 28:ă# " '" !$ " !" " Main Size " ăStep 29:ă" " Main Pos ! "" " ! " !" ! " " "(!" " ! ăStep 30:ă "" " "# " &# !"$ "$ "! "" # "% ! ! " " " !" ! v $ " $!! " '" " " !" "# ăStep 31:ă" " Main Size " !$ " " Main Pos ! "" " ! " !" ! " " "(!" " ! ăStep 32:ă "" " "# " &# !"$ "$ "! "" # "% ! ! " " " !" ! v $ " $!! " '" " " !" "# ăStep 33:ă" "! " # SDĆ22 & SDĆ26 Service Manual 2Ć29 Checks and Adjustments PartĂ7 Coincidence Between Channels Specifications Setup to Check Coincidence Between Channels 11801B Calibration Step Generator Calibration Step Generator Calibration Step Generator CSA 803A Calibration Step Generator Calibration Step Generator Calibration Step Generator 2Ć30 Checks and Adjustments Checks and Adjustments Procedure to Check Coincidence Between Channels ăStep 1:ă0+5+#.+;' 5*' +04536/'05 4'55+0)4 5*'0 /#-' 5*' (1..18+0) 4'5< 5+0)4 +0 5*' 13&'3 .+45'& #/2.+0) '#& 0(( 0 04536/'05 #+0(3#/' " $65510 23'44 " $65510 '3+'4 23'44 Enhanced Accuracy '3+'4 516%* Calibrate All 212<62 /'06 Recall Defaults $65510 23'44 Source Internal Clock #.+$3#5+10 5'2 '0'3#513 " 48+5%* ăStep 2:ă3'44 5*' $65510 ăStep 3:ă3'44 5*' ! $65510 #0& 5*'0 516%* Horizontal Desc ăStep 4:ă16%* Main Record Length #0& 5*'0 4'5 Main Record Len 51 8+5* 5*' 512 -01$ ăStep 5:ă16%* Acquire Desc +0 5*' ! /#,13 /'06 ăStep 6:ă'5 Average N 51 On #0& 5*'0 516%* Set Avg N ăStep 7:ă'5 Average N 51 8+5* 5*' 512 -01$ ăStep 8:ă+4%100'%5 5*' %#.+$3#5+10 45'2 )'0'3#513 3'/15' *'#& (31/ %100'%5 +5 51 #0& 5*'0 23'44 5*' 0(( $65510 ăStep 9:ă3'44 ăStep 10:ă'.'%5 5*' *13+;105#. 24&+7 +%10 #0& 5*'0 4'5 5*' Main Size 51 ăStep 11:ă16%* Acquire Desc #0& 5*'0 4'5 Average N 51 On +0 5*' Acquire Description 212<62 /'06 ăStep 12:ă16%* Exit ăStep 13:ă'5 5*' Main Pos 41 5*#5 5*' 45'2 +4 #22319+/#5'.: %'05'3'& 10 5*' 4%3''0 ăStep 14:ă3'44 5*' $65510 ăStep 15:ă16%* Trace 2 +0 5*' Store Trace 212<62 /'06 ăStep 16:ă16%* Recall Trace +0 5*' /#,13 /'06 ăStep 17:ă16%* STO 1 +0 5*' Recall Stored Trace 212<62 /'06 SDĆ22 & SDĆ26 Service Manual 2Ć31 Checks and Adjustments ăStep 18:ă%"!!& & $&"! %&# !$&"$ $ "& $" "!!& & &" ! &! #$%% & ! '&&"! ăStep 19:ă$%% & '&&"! ăStep 20:ă"' Measurements ! &! Prop Delay ! & MeasureĆ ments #"#('# !' ăStep 21:ă"' Prop Delay ! & Trace 3 ! & Prop Delay #"#('# !' ăStep 22:ă && & 2Ć32 "$ !' ! &! !&' " & Prop Delay % v #% Checks and Adjustments Checks and Adjustments PartĂ8 Maximum Signal Voltage Measurement Limit Setup to Examine Maximum Signal Voltage CH 1 11801B Calibration Generator Trigger Output Trigger Input 50 W Coaxial Cable Fast Rise Positive Output CH 1 CSA 803A Calibration Generator Trigger Output Trigger Input SDĆ22 & SDĆ26 Service Manual 50 W Coaxial Cable Fast Rise Positive Output 2Ć33 Checks and Adjustments Procedure to Examine Maximum Signal Voltage ăStep 1:ă0+6+#.+<' 6*' +05647/'06 5'66+0)5 6*'0 /#-' 6*' (1..19+0) 5'6= 6+0)5 +0 6*' 14&'4 .+56'& #/2.+0) '#& 0(( 0 05647/'06 #+0(4#/' " $76610 24'55 " $76610 '4+'5 24'55 Enhanced Accuracy '4+'5 617%* Calibrate All 212=72 /'07 Recall Defaults $76610 24'55 Slope Main Size 5&+8 #.+$4#6+10 '0'4#614 /2.+67&' /#:+/7/ #/2.+67&' '4+1& 5 #4+#$.' #&,756/'06 /+& 4#0)' ăStep 2:ă17%* 6*' 8'46+%#. +%10 #0& 6*'0 5'6 6*' Vert Offset: M1 51 6*#6 6*' 9#8'(14/ +5 8'46+%#..; %'06'4'& 10 6*' 5%4''0 ăStep 3:ă'6 6*' %#.+$4#6+10 )'0'4#6145 #/2.+67&' 51 6*#6 +6 &+52.#;5 # 2'#-=61=2'#- 537#4' 9#8' ăStep 4:ă17%* 6*' *14+<106#. 05&+8 +%10 #0& 6*'0 5'6 6*' Main Size 61 ăStep 5:ă'6 6*' Main Pos 51 6*#6 6*' 215+6+8'=)1+0) 56'2 +5 9+6*+0 =&+8+5+10 61 6*' 4+)*6 1( 6*' .'(6=/156 '&)' 1( 6*' 5%4''0 ăStep 6:ă4'55 6*' ! $76610 ăStep 7:ă17%* Acquire Desc #0& 6*'0 5'6 Average N 61 On +0 6*' Acquire Description 212=72 /'07 ăStep 8:ă17%* Set Avg N #0& 6*'0 5'6 Average N 61 9+6* 6*' 612 -01$ ăStep 9:ă17%* 6*' 8'46+%#. +%10 #0& 6*'0 5'6 6*' Vert Offset: M1 51 6*#6 6*' #8'4#)' 1( 6*' 612 1( 6*' 27.5' 05 #(6'4 6*' 56'2 +5 10 6*' *14+<106#. %'06'4.+0' ăStep 10:ă'6 Vert Size:M1 61 / &+8 ăStep 11:ă17%* Vert Offset: M1 #0& 6*'0 Fine +0 6*' Numeric Entry & Knob Res 212=72 /'07 ăStep 12:ă'6 Vert Offset: M1 51 6*#6 6*' #8'4#)' 1( 6*' 612 1( 6*' 27.5' 05 #(6'4 6*' 56'2 +5 10 6*' *14+<106#. %'06'4.+0' ăStep 13:ă'6 6*' Main Size 61 05&+8 2Ć34 Checks and Adjustments Checks and Adjustments ăStep 14:ă ! $! " " ! # v " " % ' ! ăStep 15:ă! % " Main Size ăStep 16:ă Main Pos # '" ' ăStep 17:ă ! $! " " # v " " % ! ăStep 18:ă & SDĆ22 & SDĆ26 Service Manual 2Ć35 Checks and Adjustments PartĂ9 Isolation Between Channels Specifications Setup to Check Isolation Between Channels 11801B Calibration Step Generator Calibration Step Generator Calibration Step Generator W CSA 803A Calibration Step Generator Calibration Step Generator Calibration Step Generator W 2Ć36 Checks and Adjustments Checks and Adjustments Procedure to Check Isolation Between Channels ăStep 1:ă/*4*"-*8& 4)& */3425.&/4 3&44*/(3 4)&/ .",& 4)& '0--07*/( 3&49 4*/(3 */ 4)& 02%&2 -*34&% ".1-*/( &"% /'' / /3425.&/4 "*/'2".& ! #5440/ 12&33 ! #5440/ &2*&3 12&33 Enhanced Accuracy &2*&3 405$) Calibrate All 101951 .&/5 Recall Defaults #5440/ 12&33 Source Internal Clock "-*#2"4*0/ 4&1 &/&2"402 ! 7*4$) ăStep 2:ă2&33 4)& #5440/ ăStep 3:ă05$) 4)& )02*80/4"- 13%*6 ăStep 4:ă2&33 4)& *$0/ "/% 4)&/ 3&4 4)& Main Size 40 #5440/ "/% 4)&/ 405$) Horizontal Desc ăStep 5:ă05$) Main Record Length "/% 4)&/ 3&4 Main Record Len 40 7*4) 4)& 401 ,/0# ăStep 6:ă05$) Acquire Desc */ 4)& ."+02 .&/5 ăStep 7:ă&4 Average N 40 On "/% 4)&/ 405$) Set Avg N */ 4)& Acquire Description 101951 .&/5 ăStep 8:ă&4 Average N 40 7*4) 4)& 401 ,/0# ăStep 9:ă2&33 4)& #5440/ 0/ 4)& 3".1-*/( )&"% ăStep 10:ă05$) 4)& 6&24*$"- *$0/ "/% 4)&/ 3&4 4)& Vert Size: M2 40 .%*6 ăStep 11:ă05$) Acquire Desc */ 4)& 3&4 Avg N 40 On ."+02 .&/5 "/% 4)&/ ăStep 12:ă "*4 5/4*- 4)& Acquire Desc 3&-&$402 */ 4)& ."+02 .&/5 3)073 4)"4 "6&2"(&3 )"6& #&&/ $0.1-&4&% ăStep 13:ă05$) 4)& #5440/ ăStep 14:ă05$) Measurements "/% 4)&/ PeakĆPeak */ 4)& Measurements 101951 .&/5 ăStep 15:ă&$02% 4)& PeakĆPeak .&"352&.&/4 '02 -"4&2 53& ăStep 16:ă2&33 4)& #5440/ SDĆ22 & SDĆ26 Service Manual 2Ć37 Checks and Adjustments ăStep 17:ă*/$ Measurements ) .$!) PeakĆPeak %) .$! Measurements +*+3/+ (!)/ ăStep 18:ă!*, .$! PeakĆPeak (!-/,!(!). "*, '.!, /-! ăStep 19:ă .$. PeakĆPeak PeakĆPeak v ăStep 20:ă%-*))!. .$! '%,.%*) -.!+ #!)!,.*, ,!(*.! $! ",*( ) .$! W .!,(%).%*) ",*( *))!. .$! '%,.%*) -.!+ #!)!,.*, .* *))!. .$! W .!,(%).%*) .* ) .$!) +,!-- .$! )"" /..*) ăStep 21:ă,!-- .$! /..*) ăStep 22:ă*/$ .$! $*,%2*).' +- %0 %*) ) .$!) -!. .$! Main Size .* ăStep 23:ă,!-- .$! /..*) ăStep 24:ă,!-- .$! /..*) ăStep 25:ă,!-- .$! /..*) ăStep 26:ă%. /).%' .$! Acquire Desc -!'!.*, %) .$! (&*, (!)/ -$*1- .$. 0!,#!- $0! !!) *(+'!.! ăStep 27:ă,!-- .$! /..*) ăStep 28:ă!*, .$! PeakĆPeak (!-/,!(!). "*, '.!, /-! ăStep 29:ă,!-- .$! /..*) ăStep 30:ă!*, .$! PeakĆPeak (!-/,!(!). "*, '.!, /-! ăStep 31:ă .$. PeakĆPeak PeakĆPeak v 2Ć38 Checks and Adjustments Maintenance " "# #" !# ! !! !%#% # !$!" ! ' $#( " " !% ! " #! !$#!( # " #* # $! Preventive Maintenance !%#% # !! !$!( !%# !& ( !% !#( # "#!$# ! " "%!#( # %!# # & # " " "$# #!" # ! $( # Periodic Electrical Checks "$! $!# "$!#" !! ! #! " # "#!$# " #! $!" !# ! %!( #" $" ! $#( !$!" # !! ! #! " ! % # StaticĆSensitive Device Classification CAUTION "#!$# " # #! #" ## ! "$"# # ! "## "! * %" !#% "$"* ##( %!$" """ "$#!" ## %#" # ! $!## %!#" "!% # & !$#" # % ăStep 1:ă ) "##*""#% #" ăStep 2:ă!"!# # " " #! ! #!" "#! # " " # "$! ! $#% !"* !# # " " &# "!#*!$# #!#" # $#" ( ## #" "##*""#% """ ! #" SDĆ22 & SDĆ26 Service Manual 3Ć1 Maintenance ăStep 3:ă%.$-#! /$! .//% 1*'/#! "-*( 3*0- * 3 3 2!-%)# 2-%./ ./-+ 2$%'! $) '%)# /$!.! *(+*)!)/. !-1%! *" .//%4.!).%/%1! ..!('%!. *- *(+*)!)/. .$*0' ! +!-"*-(! *)'3 / .//%4"-!! 2*-& .//%*) 3 ,0'%"%! .!-1%! +!-.*))!' .! .//% *)/-*' (/ ) 2-%./ ./-+ ăStep 4:ă'!- /$! 2*-& .//%*) .0-"! *" )3/$%)# /$/ ) #!)!-/! *$*' .//% $-#! ăStep 5:ă!!+ /$! *(+*)!)/ '! . .$*-/! /*#!/$!- 2$!)!1!+*..%'! ăStep 6:ă%& 0+ *(+*)!)/. 3 /$! * 3 )!1!- 3 /$! '! . ăStep 7:ă* )*/ .'% ! /$! *(+*)!)/. *1!- )3 .0-"! ăStep 8:ă1*% $) '%)# *(+*)!)/. %) -!. /$/ $1! "'**- *- 2*-&4 .0-"! *1!-%)# +'! *" #!)!-/%)# .//% $-#! TableĂ3Ć1:ăRelative Susceptibility to Electrostatic Discharge (ESD) Semiconductor Classes Relative Susceptibility Levels1 *- (%-*%-0%/. *- %.-!/! %-0%/. *'%)!- (%-*%-0%/. 2%/$ %)+0/. (*./ .!).%/%1! $*//&3 .%#)' %* !. $*//&3 %#$4"-!,0!)3 %+*'- /-).%./*-. %)!- (%-*%-0%/. *24+*2!- $*//&3 '!./ .!).%/%1! 1Voltage equivalent for levels (voltage discharged from a 100ĂpF capacitor through resisĆ tance of 100 W: 1Ă=Ă100 to 500 V 6 = 600 to 800 V 2 = 200 to 500 V 7 = 400 to 1000 V (est.) 3 = 250 V 8 = 900 V 4 = 500 V 9 = 1200 V 5 = 400 to 600 Vąą 3Ć2 Maintenance Maintenance Exchanging Sampling Heads $ # " # " $ # ! # # ! # $ # SDĆ22 & SDĆ26 Service Manual 3Ć3 Maintenance Removing and Replacing the Sampling Head Internal Circuitry CAUTION To avoid damage to the sampling head, set the instrument ON/ STANDBY switch to STANDBY and remove the sampling head from the instrument before removing or replacing the internal circuitry. $"$ & "")! #$"'$% &" $ "( ! $# & !&$! $'&$+ ! & % #! '$ - ăStep 1:ă "( & ! '&&"! + !&+ #'! "! & #%& !" )& % !-!"% #$% ăStep 2:ă "( & &$ % ",$( %$)% "! % " & % #! %! % '$ - ăStep 3:ă "( & %"$&-$'& &$ !&"!% & $"!& #! ! & %! $" & !&$! $'&$+ ăStep 4:ă!%& & !&$! $'&$+ !&" & $+ %##! %! ăStep 5:ă# & %"$&-$'& &$ !&"!% "! & % #! !#'&% ăStep 6:ă&'$! & !&$! $'&$+ & $'& "$ ! && $$$ "$ % #! *! "$ $#$ ăStep 7:ă" $# & !&$! $'&$+ "") & $ "( #$"'$% ! $($% "$$ 3Ć4 Maintenance Maintenance Short Circuit Terminations Short Circuit Terminations Figure 3Ć1:ăSampling Head Screw Locations SDĆ22 & SDĆ26 Service Manual 3Ć5 Maintenance Changing the Sampling Head Identification Number The following procedure allows you to change the sampling head identificaĆ tion number to fit the requirements of your application. The following equipment, in addition to an 11800 Series or CSA 803 Series instrument and the sampling head, is necessary to perform this procedure: H IBM PC or any other compatible PC that has MS DOS and an RSĆ232ĆC serial port configured for COM1 H a serial cable Procedure to change the sampling head identification number: ăStep 1:ăSet the instrument's PRINCIPAL POWER SWITCH to OFF. Install one of the shortĆcircuit jumpers across the two J860 pins on the A5 Time Base/Controller Board. These shortĆcircuit jumpers are located on several jumper pins on the A5 Time Base/Controller Board. This board is located on the bottom of the instrument and can be accessed once the bottom panel is removed. Refer to the section in the for your instrument for more information on accessing this board. See Figure 3Ć2 for the location of jumper J860. ăStep 2:ăBoot up the PC with MS DOS operating. ăStep 3:ăConnect the serial cable to the instrument's RSĆ232ĆC port located at the rear of the instrument. Connect the other end of the cable to the COM1 port on the PC. ăStep 4:ăInstall the sampling head in any sampling head compartment in the instrument. ăStep 5:ăSet the PRINCIPAL POWER SWITCH to ON and the ON/ STANDBY switch to ON. ăStep 6:ăAfter the diagnostics are complete, press the UTILITY button and then touch RSĆ232 Parameters. ăStep 7:ăSet the Baud Rate to 4800 Bd, the Parity to none, and the Stop Bits to 1 in the RSĆ232 Parameters popĆup menu. ăStep 8:ăInsert the Sampling Head Utility Software floppy disk (provided in this manual) into the A" drive of the system controller. ăStep 9:ăOn the PC, type a: and then press the return or enter key. 3Ć6 Maintenance Maintenance J860 Figure 3Ć2:ăA5 Time Base/Controller Board Jumper Location ăStep 10:ă/) id ' ,"' )*++ ," *,-*' (* ',* $/ " ,"' #+)%/+ ," (%%(.#'! &++! Make sure 11800 RS232 port is set up as follows: Baud Rate Parity Stop bits 4800 none 1 Enter mainframe head number [1..4] NOTE When entering the sampling head number, the 11802 Oscilloscope and CSA 803 Series Communications Signal Analyzers only have head number 1 and head number 2. The 11801 Series OscilloĆ scopes have head number 1 through head number 4. The head numbers correspond to the sampling head compartments and are in ascending order (reading from left to right). SDĆ22 & SDĆ26 Service Manual 3Ć7 Maintenance ăStep 11:ă' &+) + *%($!& &,%) +/( !& + '))+ *%0 ($!& &,%) & + & ()** + )+,)& ') &+) #/ + & !*($/* + '$$'.!& %** Current ID number is: XXXXXXXX" Enter new ID number (8 characters max): NOTE The X's between the quotes represent the current ID number. Eight is the maximum number of digits allowed and one is the minimum. Any character is allowed, except a space ( ) character. ăStep 12:ă&+) +.& '& & ! + )+)* ') + &. !&+!!0 +!'& &,%) !&*+),%&+ .!$$ + & $* + %** Change in channel M configuration ',) +!%* + + +'( ' + *)& ăStep 13:ă+ + *.!+ +' & + & *.!+ !+ # +' ăStep 14:ă' -)!/ + &. !&+!!+!'& &,%) ()** + ,++'& & + & +', Identify &. !&+!!+!'& &,%) &'. (()* ,&) Mainframe Sampling Heads !& + System Identification ('(0,( %&, ăStep 15:ă%'- + * ')+0!),!+ ",%() + + .* !&*+$$ '& !& +( 3Ć8 Maintenance Theory of Operation / #&"$ ) *-%/$$" "%-/$%) &) () *# )#&"$ / #&"$ ) *-%/$$" &) () *# )#&"$ System Functional Overview ) )*%$ )() $ ""+)*(*) * # %( +$*%$" "%!) % * / / #&"$ ) ) +( / '+)*%$ .)*# *(% $(*%( *(% (, *(% (, %(%# $)*(+#$* '+)*%$ .)*# Figure 4Ć1:ăSDĆ22 and SDĆ26 Sampling Head Block Diagram )*(% (, )$" (%# * $)*(+#$* #$(# %$*(%") * *#$ % * )*(% ))(*%$ *% '+)*%$ ).)*# $ +($*) )#&"$ %$$ *-$ * *-% $$") )*(% )$) )$" ) &(* % * )*(% )$" (*+($ *% * $)*(+/ #$* $)*(+#$* #%$*%() * *# +(*%$ % * )*(% (,)*(% )$) "%%& $ +)*) ". "$ $) * $)*(+#$* *% #$*$ %((* )*(% *#$ SDĆ22 & SDĆ26 Service Manual 4Ć1 Theory of Operation Loop Gain $ ! $ # ! " ! # # !$ # # ! ! # ! ! $ "! ! ! " ! $ " ! % ! # "! ! ! " # # "! # " ! "! ! ! " # # " " ! % # $ ! Unity Loop Gain Insufficient Loop Gain Excessive Loop Gain Figure 4Ć2:ăDisplayed Traces at Various Loop Gain Settings 4Ć2 Theory of Operation Theory of Operation Offset Null ! SDĆ22 & SDĆ26 Service Manual 4Ć3 4Ć4 Replaceable Parts !"* *+"'& '&+"&* $"*+ ' +! '%('&&+* +!+ ) )($$ ') +! 1 1 %($"& * * *)" $'. ,* +!"* $"*+ +' "&+"0 & ')) )($%&+ ()+* Parts Ordering Information ($%&+ ()+* ) -"$$ )'% ') +!)', ! 0',) $'$ #+)'&"/ & *)-" &+) ') )()*&++"- !& * +' #+)'&"/ "&*+),%&+* ) *'%+"%* % +' '%%'+ "%()'- '%('&&+* * +!0 '% -"$$ & +' "- 0', +! &"+ ' +! $+*+ "),"+ "%()'-%&+* !)') .!& '))"& ()+* "+ "* "%(')+&+ +' "&$, +! '$$'."& "&')%+"'& "& 0',) ')) H )+ &,%) H &*+),%&+ +0( ') %'$ &,%) H &*+),%&+ *)"$ &,%) H &*+),%&+ %'""+"'& &,%) " (($"$ ()+ 0', ')) !* & )($ ."+! ")&+ ') "%()'- ()+ 0',) $'$ #+)'&"/ *)-" &+) ') )()*&++"- ."$$ '&++ 0', '&)&"& &0 !& "& +! ()+ &,%) !& "&')%+"'& " &0 "* $'+ + +! )) ' +!"* %&,$ Module Replacement ! 1 1 %($"& * ) *)-" 0 %',$ )($%&+ *' +!) ) +!) '(+"'&* 0', *!',$ '&*") SDĆ22 & SDĆ26 Service Manual H Module Exchange 2 & *'% ** 0', %0 /!& 0',) %',$ ') )%&,+,) %',$ !* %',$* '*+ *" &""&+$0 $** +!& &. %',$* & %+ +! *% +')0 *(""+"'&* ') %') "&')1 %+"'& ',+ +! %',$ /!& ()' )% $$ /+ H Module Repair 2 ', %0 *!"( 0',) %',$ +' ,* ') )(") +) .!"! . ."$$ )+,)& "+ +' 0', H New Modules 2 ', %0 (,)!* &. )($%&+ %',$* "& +! *% .0 * '+!) )($%&+ ()+* 5Ć1 Replaceable Parts Using the Replaceable Parts List () & "#&!(#" " ( $ &(' '( ' &&" #& %) &(&* "&'("" ( '(&)()& " ()&' # ( '( + $ ,#) " ( ( "#&!(#" ,#) " #& #&&" &$ !"( $&(' Item Names " ( $ &(' '( " (! ! ' '$&( &#! ( '&$(#" , # #" )' # '$ !((#"' " (! ! !, '#!(!' $$& ' "#!$ ( #& )&(& (! ! "((#" & ( #" "## - " )' +& $#'' Abbreviations &*(#"' #"#&! (# !&" (#" ("&' "'(()( '("& 5Ć2 Replaceable Parts Replaceable Parts CROSS INDEX - MFR. CODE NUMBER TO MANUFACTURER Mfr. Code Manufacturer Address City, State, Zip Code # # " % # " # " ! ! # ! #! ! % " "! $ !% #" " ! # " # ! " # ! $ " &" $ SDĆ22 & SDĆ26 Service Manual !! 5Ć3 Replaceable Parts Fig. & Index No. Qty Name & Description !! ) ! ) % !## * $ #! % " $ # $ " #! % ## % $%% (# !## * $ !## * $ !## * $ $#( ) $% % !## * $ " #! % !## * $ Tektronix Part No. Serial No. Effective Dscont Mfr. Code Mfr. Part No. $$" & & % !## * $ $#( ) $% % !## * $ !&# $$* #" & %$ !&# %$ ) !&# $$* !&# $$*$ #" & % STANDARD ACCESSORIES %#!)$!#% #&%$ +' $ &%&$#$ $ &%$#'$ $ %#!) !"#$! %#!) ! +"#$! %#!)$!#%+"#$! %#!)$!#% + %% !) ! + %% !) ! ! +' $ "%##"# %! $$ "%##"# %! $$ "%#" %! "%#$ %! "!(# '# + %# %!# ) %! + *!) ! $(! +' $" *!) ! $(! +' $" *!) ! $(! +' $" *!) !"$(! !"! % %$ % )%&#$" & % $% # )%&#$" & % &#!" )%&#$" & % & % ! )%&#$" & % &$%# OPTIONAL ACCESSORIES 5Ć4 # "%$ ! %! Replaceable Parts Replaceable Parts Fig. & Index No. Tektronix Part No. Serial No. Effective Dscont Qty Name & Description Mfr. Code Mfr. Part No. " !# " Figure 5Ć1:ăExploded View of the SDĆ22 & SDĆ26 Sampling Heads SDĆ22 & SDĆ26 Service Manual 5Ć5 5Ć6