Tektronix 2213 Operating instructions

Tektronix-
2213
OSCILLOSCOPE
SERVICE
INSTRUCTION MANUAL

REV N O V 1981
TA BLE O F CO N T EN TS
2213 Service
P age P age
L IST O F I LLU ST R ATIO N
S .................
iv S E CTIO N3 T HE ORYO F O PER ATIO N
L IST O F TA BLE S ....................... . ν I N T R OD U CTIO N ............... 3-1
O PER ATO R S SA FE TY S UMM A R Y . . . . . . . . . . . . vi
G ENER A LDE SC R I P TIO N . . . ...... 3-2
DE TAI LE D CI R CU IT
S
ERV ICI NG SA FE TY S UMM A R Y . . . .......... vii
DE
SC
R I P TIO N ..........
. ...... 3-4
VER TICAL ATTENU ATO R S ..... 3-4
In pu t Co u p ling .......... . . . 3-4
H ig h - Ζ Attenuato r ........... 3-4
SE CTIO N 1 S
PE
CI
F ICATIO N
B
uffer
Amplifier a
nd
Low-
Ζ
I NT R OD U CTIO N ............. 1-1 Atte nuato r
....... . . . ...... 3-5
ACC E SSO R I E S ............... 1-1 V olts/Div V ar Circuit and
PERF O RM A N C E CO N DITIO N S
...
1-1 X1/X10 Amplifier
. . . ..... . . .
3-6
VER TICA L PRE A MP S ... . ..... . 3-6
S E CTIO N 2 O PER ATI N G I N ST RU CTIO NS
C h an n el 1 V ertical P reamp lifier . . 3-6
C h annel 2 V ertical P reamplifier . . 3-6
PREP
A
R
ATIO
N F
O
RUS E ......... 2-1
Internal T r igger P ic k off
SAFE TY ................... 2-1
Amplifier . . . ... . ......... . 3-7
L I NE V OL TAG E
.............
2-1
C H A NNEL S W ITC H A ND
P O WER CO RD ............... 2-1
VER TICA L O U T PU T ... ... . . . . 3-7
L I NEFU S E ................. 2-1
Dio d
e
Gates ... . .... .... . . . 3-7
CO N T R O L S, CO NNECTO R S,
Delay L ine Driver ........ ... 3-8
A ND I NDICATOR S .............. 2-3
Delay L ine .... . . . . ........ 3-9
P O WER, DIS PL AY, A ND
V ertical Out pu t Am p lifier ... . . . 3-9
PR O BE AD JU ST .............. 2-3
C h a n nel Switch i ng L ogic
VER TICA L ................. 2-3
Circuit ........... . ....... 3-9
H O R IZO N TA L ............... 2-5
Internal Trigger Switch ing
T R IGG ER .................. 2-5
L ogic . . . ......... . . . ... . 3-10
RE A R P A NEL ............... 2-7
T R IGG ER . ... . . ..... . . . . . . . 3-12
O PER ATI N G CO N SID ERATIO N S .... 2-8
Inter n al Trigger Am p lifier ... ... 3-13
G R ATIC ULE ................ 2-8
Trigger Source-Switc h ing
G R OUN DI N G ............... 2-8
Circuit ... . . . ............. 3-13
SIG NA
L CO
NNE CTIO N
S
........ 2-8
E xternal Trigger
Amplifier ..... 3-13
I NPU T CO UPL
I N
G CA
P ACITO R
A
u to Trigger Circuit
. ......... 3-13
PRE
C
H
A
R GI N G ............ . . 2-8
Trigger L evel Com p arator ... . . . 3-14
I N ST RUMEN T COO L I N G ... . . . . 2-9
Inverting Am p lifier and
OSCI LL OSCO PE DIS PL AYS ... ..... 2-9
T V T r igger Circuit ........ . . . 3-14
I N T R OD U CTIO N . . . . . ....... . 2-9
Sc
h
mitt T
r
igger Circ u it ........ 3-15
B AS EL I NE TR AC
E
. . ........... 2-9
A
u
to B
aseline
Circuit ......... 3-15
SIG N A
L
DIS PL AY
. ....... .
. . . 2-9 S
WEEP G ENER ATO R A ND
M AG N I F I E D-S WEEP DIS PL AY . ... 2-10 L
OGIC
.................... 3-15
D EL AY E D-S WEEP DIS PL AY . .... 2-10
M iller Swee p Ge n erator
....... 3-15
Χ - Υ DIS PL AY .... .... . . ..... 2-10
Sweep
L
ogic
............... 3-16
T V SIG NAL
DIS PL AYS . .......... 2-11 Delay Circuit
.............. 3-18

2213 Service
TA
BLE O F CO
N T ENTS (cont)
S
E CTIO N 3 T HE ORYO F OPER ATIO N (co
n
t)
P
age
SE CTIO N 5 AD JU ST MEN
T PR
OC
E D URE
P age
DE TAI LE D CI RC U IT
I NTR OD U CTIO N ...............
5-1
D E SC R I P TIO N (co n t)
PURP OS E . .................
5-1
T E ST
E Q
U
I PMEN T RE Q U I RE D ... 5-1
A U TO
I N
T
EN SITY A N D Z-AXIS
L I M ITS A
N D TO LER A N C E S ..... 5-1
A
M
PL
I F I ER
................
. 3-19
P A R TIA L PR OC E D URE S . ...... 5-1
Auto Intensity .............
3-19
AD J UST MEN T I NT ER ACTIO N . . .
5-1
Ζ -Axis Am p lifier ............
3-20
PREP A R ATIO N
F
O R
H O R IZO N TA L ...............
3-20
AD JUST
MEN T
.. .
. . . ......... 5-3
H
orizontal P ream p lifier ....... 3-20
I NDE
X
TOAD
JU ST MEN T
ΧΥ
Am
p lifier ..............
3-21
PR
OC
E D URE . . . . .... ... . ... . 5-3
H orizontal O u tput Am p
lifier .... 3-22
P O WER S UPPL YA NDCR T
P
O
WER S UPPL Y . .... . .......
3-22
DIS PL AY . ........ . ..... . .... 5-4
P owe r Input .... . . . . . . .....
3-22
VER TICA L . . . . . . .............
5-7
P reregulator ...... . .......
. 3-22
H O R IZO N TA L . . .... . . . ........
5-13
Inverte r . . .... . ........ .
. . 3-23
T R IGG ER I N G ....
..... . . . . .... 5-17
CRT Supply . . . . . .... ... ...
3-24
E XT ERN A L Z-AXIS AND
Auto Foc u s Circuit ....
. . . ... 3-24
PR O BE AD JU ST .......
. . . . . . . . . 5-20
L ow- V oltage Supplies ......
. . . 3-24
DC R estorer ..............
. 3-24
SE CTION 6 M AI N T EN A
NC E
STATIC-S
EN SITI VECOMP O NEN TS . . 6-1
PREVEN TI VE M AI
N
T EN
A
N C
E ..... 6-2
I N TR OD U CTIO
N
.............
6-2
G ENER A L CA RE
............. 6-2
I N S PE CTIO N AN DC LE A
N I NG ... 6-2
LUBR ICATIO N ..............
6-4
S EM ICO ND U CTO R
CHE
CK S .....
6-4
S
E CTIO N 4 PERF O RM A N C E C HE C
K
PER IODIC RE AD JU ST
MEN T ..... 6-4
PR OC E D URE
T R O UBLE S
H
OOTI
N G ............ 6-5
I N T R OD U CTIO N ...............
4-1 I N TR OD U CTIO
N
.............
6-5
PURP OS E ..................
4-1 T R O UBLE S
H
OOTI
N G AIDS ..... 6-5
T E ST E Q U I PMEN T RE
Q U I RE D
...
4-1 T
R
O
UBLE S H OOTI NG
L I M ITS A ND TOL
ER
A
N C E S ..... 4-1
EQUIPMENT ................ 6-7
PREP A R ATIO
N
..............
4-1
T R O UBLE SH OOTI NG
I N D E X TO
PERF
O
RM A NC E
T E C HN IQ UE S ............... 6-7
C HE C K STEP S
............... 4-3
CO RRE CTI VE M AI N T EN A N C
E .....
6-10
VER TICA L ...................
4-4
I NTR OD U CTIO N .............
6-10
H O R IZO
N TA L
.................
4-6 M AI N T
EN
A N C
E PRECAUTIONS . . 6-10
T R IGG
ER I N G ................ .
4-9 O B TAI N I N
G REPL AC EMEN T
E XT ERN A L Z-AXIS
AND
P A R TS ....................
6-10
PR
O
BE AD JUST . . . .............
4-12 M AI N T
EN
A
N
C
E AIDS ......... 6-10

TABLE OF
CONTENTS
(cont)
Page
2213 Service
SECTION6
MAINTENANCE (cont)
SECTION 7 OPTIONS
INTERCONNECTIONS ........ . 6-10
TRANSISTORS AND
SECTION 8
REPLACEABLE ELECTRICAL PARTS
INTEGRATED CIRCUITS ....... 6-11
SOLDERING TECHNIQUES ...... 6-12
SECTION9 DIAGRAMS
REMOVAL AND REPLACEMENT
INSTRUCTIONS .............. 6-13
SECTION 10
REPLACEABLE MECHANICAL PARTS
Cabinet .................. 6-13
Cathode-Ray Tube ........... 6-13
ACCESSORIES
High-Voltage Shield .......... 6-14
Attenuator/Sweep Circuit
Board ................... 6-14 INTERNATIONAL SALES &
SERVICE OFFICES
Front-Panel Circuit Board ...... 6-15
Main Circuit Board .......... 6-16 U .S . SALES&
SERVICEOFFICES
Current Limit Circuit Board .... 6-18
REPACKAGING FOR SHIPMENT . . 6-18 CHANGE
INFORMATION

2213 Service
iv
ιι
sτ ο F
ιιιυ sτR
ατιοιν
s
F ig u
re

P age
T he 2213 Oscillosco p e

viii
2-1

P
ower-i n put-voltage
config u rations . . . . . ... . . . . .......... . ... . . ........... 2-2
2-2

L ine fuse a
nd power cor d ...... . ..... . . . . . .....

2-2
2-3

P ower, d is p lay, a
nd probe a dju st co n trols, connector, an d i n dicator .... . . . . . . . . .....

2-3
2-4

V e r tical co
n
t
r
ols an
d con n ectors
. . . . ......................
. . . . .... . ..... 2-4
2-5

H orizo n tal co
n
t
r
ols ..
. . . ... ......... . ............ . . . ... ............. 2-5
2-6

Trigger controls, conn
ecto r , an din d icato r . . . .......... . . . . ...... . .......... 2-6
2-7

R ear- p anel con n ector .... . . . . . ........... . .... . . . ...... . .............
2-7
2-8

G r atic u le measureme n t ma rk ings ... . ....... . . . . . ... . . .
. . . . .............. 2-8
3-1

B asic b loc k d iagram of t
h e
2213
Oscilloscope .........
.
... . . .................

3-3
3-2

Detaile d bloc
k diagram of t h e Ch an n el 1 attenuator an d attenuator switc h i n g ta b les ......

3-5
3-3

Diod
e
gate
b iasing for α Ch a n nel 1 d isplay . ............ . . ... . .... . .......... 3-8
3-4

C
H O P VER TICA L M OD E waveforms ........ . ... . . . ... ... . ............... 3-11
3-5

Swee p timing d iagram . . . . . ..... . . . . .......... . . . . ... . . .... .
......... 3-16
3-6

Sim p lifie d d iag r am of t h e Ζ -Axis Switch i
ng L
ogic
circuit ... . . ...................

3-18
3-7

Detaile d bloc k diagram
of
t
h e H orizo n tal Amplifier ....... . . .... . . . . ...........

3-21
3-8

Sim
p lifie
d d iag
r am of t h e DC R estorer circuit . ...... . ..... ... . ... . . . .........

3-25
4-1

Test
setup fo r exte r nal trigger an d j itter ch ec k s . . . ......... . . . ................

4-10
6-1

M ultipin
con n
ecto
r orie n tatio n
. . . . . . . . . . ........ . ... . . .................
6-6
9-1

Color codes for resistors and capacitors .
9-2

Semiconductor lea d con figurations .
9-3

L ocati
ng com p one n ts on sc h ematic diagrams a nd circuit boa r d
illustrations
.
9-4

2213 bloc kdiagram
.
9-5

A12-Attenuator/Sweep b oard .
9-6

Ci r cu it view of A12`-Atte
n uato r /Sweep boar d .
9-7

Circuit view of A10-Main b oar
d .
9-8

A10-Main boa r d .
9-9

All -Front P anel b oar d .
9-10

A19-Current
L imit b oard .
ι
ι
ι
ι
ι

LIST
OF
TABLES
2213 Service
Table
Page
1-1 Electrical Characteristics ..... . . . .... ... . . . . . . ........ . . . . ..... . .......
1-2
1-2 Environmental
Characteristics . . ... . . . . . ... . .... . ...... . . ... . ...........
1-6
1-3 Physical
Characteristics ...... . . . . ... . ... . . ....... . .... . . . .............
1-7
4-1 Test Equipment Required ........ ... . . . . . . . ..... . . ......... . . ... . .....
4-2
4-2 Deflection Accuracy Limits ... . ..... . . .... ... . ............ . . ... . .......
4-4
4-3 Settings for
Bandwidth Checks
.....
. ... . .... .... . ...... . .... . . . . ... .....
4-5
4-4 Settings
for Timing Accuracy Checks .... . . .... . . ... . . . . . ......
. . . . .
. .....
4-7
4-5 Delay
Time Range Checks ............ . ......... . . . . ..........
. . . .. . ... 4-7
4-6
Switch Combinations for Triggering Checks . ......... ............ . ....
. . . . . . 4-9
5-1
Adjustment Interactions ..................... . . . . . . .............
. . . ... 5-2
5-2
Power Supply Limits and Ripple .............
. ..... . . .......... . ... ..... 5-5
5-3 Deflection Accuracy Limits ................... . ... . . ...
. . . . ..... . ... ... 5-8
5-4 Attenuator Compensation
Adjustments
...............
. . . . ......... . ...... . 5-10
5-5
Settings for Bandwidth Checks .....................
... . . . .......... . ... . 5-11
5-6
Timing Accuracy ............................
. . . . . . . . . . . . ... . .... . . . 5-14
5-7 Settings for Timing Accuracy Checks
.................. . . . . . . ......... . . . . 5-15
5-8
Delay Time Range Checks ..........................
................ . . . 5-15
5-9
Switch Combinations for Triggering Checks .... . .......
. ... ..... . ..... . ..... 5-18
6-1
Relative Susceptibility to Static-Discharge Damage ......... . . . . . .......
. ..... . 6-1
6-2
External Inspection Checklist ..................... . ... . . ............
. . . 6-3
6-3
Internal Inspection Checklist . ....................... . ... .. .
. . . ...... . . . 6-3
6-4
Maintenance Aids ......................... . . . . . . ..............
. ... . 6-11

2213 Service
Th e
general safety
and
cautions will be found t hroughout the manual
where they apply anddo not appear in this
summary .
Terms i n T h is Manual
CA U TIO N stateme n ts i den
tify conditio n s o r pr actices
t h at could result i
n
d amage
to t h e e qu i p me nt or ot h er
p r op erty .
WA RN I N G stateme
n
ts
i d entify con d itio n s or p ractices
t h at co u
l
d
res u lt i n pe r so n al in j ury or loss of life .
Terms as
M ar k ed
onEq
uipment
CA U TIO N
in d icates α personal i nj ury h azar d n ot imme-
d iately accessi b
le
as
one rea d s t he ma rk ings, or α h aza r d to
prop erty, i n clu d
ing
t
h e e qu ip m ent itself .
DA NG ER
indicates α pe r so n al in ju ry h aza rd imme d iately
accessible
as o ne r ea d s t h e ma rk i ng .
Symbols in T h is Manual
Sym
b ols as M ar k e d on E q u i p ment
P
ower
Source
T h is p r odu ct is
intende d to op erate from α power so u rce
t h at does not apply
more t han 250 volts r ms between t he
supp ly co ndu cto r s or b etween
eit h er supply co ndu ctor an d
grou nd . Α protective groundcon
nection by way of t he
gro und i n g con d u cto r i n t h e
power
co
rd is essential for safe
o p eration .
O
PER ATO
R
S SA
FE TY
S
UMM A R Y
information in this part of the summary
is for b oth o perating and servicing p
ersonnel .
T
h
is sym
b ol indicates w h ere a p plicable
cautiona
r y o r ot h er i n fo r mation is to be
foun d .
Fo r maximum in p ut voltages, see
Table 1-1 .
DA N G
ER - H ig h voltage .
P rotective grou nd (eart
h )
te
r minal .
ATTENTION - R efe r to manual .
Gro
un d i n g t he P rod uct
T h is p ro du ct is g
r oun ded t h ro ugh t hegro und i ng con ducto
r
of t
he p ower cord . To avoid elect r ical s hock , pl ug t
he
power co rd into α p r op erly wire d
r
ecepta b
le b efo r e con-
necting to t h e pro d uct
i npu
t
o r outpu t termi n als . Α
p r otective g r ound
conn
ectio
nby
way
of t he grou nd ing
condu ctor i n t
he powe r cor d is essential for safe o pe r atio n .
Dange r Arising F rom L oss of Grou n d
Up on loss
of the p r otective-grou nd conn ectio n , all acces-
sible
co
ndu ctive p arts (i n cl u d i n g knobs and cont
r
ols t h at
may a ppea
r to b e i n s u lating) can re nd e r an electric s
hock .
Use t he P roper
P
ower Cor
d
U se only t he p
ower co
rd an
d con n ector specifie d for
your p r o du ct .
U se only α powe r cord t
h
at is
in good con d itio n .
Specific warnings
F or detaile d
i n formatio n on p owe r co rd s and con nectors
see F igure 2-1 .
Use t he P roper
F
use
To avoi d fire h
aza
rd ,
use
only α
f u
se
of t he correct ty p e,
voltage rati ng a
nd cu rre n t rati n g as specifie d in t he parts
list for yo
u r pro du ct .
Do N ot O perate in E x p losive Atmos p
h eres
To
avoi d exp losion, d o
n
ot op
erate t h is p ro du ct in an
explosive atmos phe
r e unless it h as bee n specifically ce
r -
tifie d fo
r
s
uch ope r ation .
Do N ot R
emove Covers or P a n els
To avoid
personal i nju ry, d o n ot remove t h
e
pr o d
uct
covers or p
an els
.
Do n ot op erate t he p r o du ct withou
t t he
cove r s an d
panels prop erly i n stalle d .

Do N ot Service Alone
Do not perform internal service or a d justment of
this
pro
d uct u nless another person capable of ren d ering first
aid and resuscitation is p resent .
U se Care
When Servicing W ith Power
On
S ERV ICI N
G SA FE TY
S
UMM A R Y
FOR Q U A L I F I E D
S ERV IC E PER
SO
NNEL
O NL Y
Dangerous voltages
exist at several p oints in this
product .
To avoi dp ersonal injury, d
o not touch expose d connec-
tions
or components while p ower
is on
.
R efe r
also
to t h e
precedingOperators Safety Summary .
P ower Source
2213 Service
Disconnect power before removing
protective p anels,
soldering, or replacing components .
This product is inten ded to
operate from α power source
that does not apply more than 250
volts rms between t he
supply conductors or between either
sup p ly con ductor
and ground . Α p rotective groun d
connection by way of the
groun d ing conductor in t he p ower
cord is essential for
safe o p eration .

2213
Service
Vill
The 2213
Oscilloscope .
3827-01

I N T R OD U CTIO N
T he TEKTRONIX 2213 Oscilloscope
is αrugged, light-
weight, d ual-channel, 60-MHz instrument that features α
bright, sharply defined trace on an 80- by 100-mm cathode-
ray tube (crt) . Its vertical system p rovi d es
calibrate d
d eflection factors from 2 mV p er division to 10
V per
d ivision . Trigger circuits
enable stable triggering over the
full bandwidth of the vertical system
. The h orizontal
system provid es calibrate
d sweep speeds from 0 .5s p er
division to 50 ns per d ivision along with α delaye d -swee p
feature . Α Χ 10 magnifier exten d s the maximum swee
p
s pee d to 5 ns per d ivision .
ACC E SSO R I E S
T he
instrument
is ship p ed
with t he following stand ar d
accessories :
1 Operators manual

2P robe p ackages
1

Service manual

2P robe grabber tips
F or p art numbers and further information about both
stan d ar d and optional accessories,
refer to the "Accessories"
page at the back of this manual . Your Tektronix represent-
ative, your local Tektronix F iel d Office, or the
Tektronix
prod uct catalog can also provi de accessories information .
S PE CI
F ICATIO N
Section 1-2213 Service
PERF O RM A N C E CO N DITIO N S
T he following electrical characteristics (Table 1-1) are
valid for the 2213 when it h as been adjuste d at an ambient
temperature between
+2 ρ° ς
and
+30
° C, h as had a warm-up
p erio d of at least 20 minutes, an d is operating at an
ambient temperature between 0 ° C and +50 ° C (unless
otherwise noted) .
Items listed in the "Performance Re q uirements" column
are verifiable q
ualitative or q uantitative limits, while items
listed in the
"Supplemental Information" column are
either ex p lanatory notes, calibration setu p d escri p tions,
performance characteristics for which no absolute limits
are specifie d , or characteristics that are impractical to
check .
E nvironmental
characteristics are given in Table 1-2 .
The 2213 meets the
requirements of
MIL-T-28800B,
Class 5 equip ment, except where
otherwise note d .
Physical characteristics of the instrument are listed
in Table 1-3 .