Leader LBO - 524 User manual

MODE L
4 0 M
Hz
DELAY E D
LBO‐
524・
LBO‑524L
DUAL TlME B ASE
Si
WEEPO SC I
LLOSC O PE
lN S T R UCTiO N M ANUAL
LEAD E RE L E C T R O N ICS C O R P .

LBO‐
524・
L 8 0 ‐
52 卜L
40M H z D U A L T ,M E B A SE D E LA Y E DSWE E P O SC iL LO S C O PE
TA B L EO FC O NTE N T S
1口 lN T R ODU C T 10N
2 . S PECiFi
CA T 10 N
3. NOT ES O N O PE R A T 1
0N コ ………………………・………・……………… コ… … 3
3 . l Po w e r S ource V oit a ge . 口 口 . . コ ロロ・ロロロ・ロロロココ[ コB = = 。・・・・・・・口。口 ・ 口 =口 , コ コ ・ ・
3
3 .2 S i
gnali
nput B.....ココロロロロコ
・・・・・・・・・・・・・口・,・・=口・'ロロロ・・・・・
,・ ,・・・ロロ
3
3 . 3 i n f l u e n ceo fS t rong‖M agn e tic F i e i d ロ コ ロ ロ E ● ■ 口 ■ ■ ・ =口 = =・・・・・・・・〔・・・・・・口〔 口
3
3 日40 pe r a t ion i n a Ho t a nd H u r n i d P l a c e. = 口 B コ ロ ロ ・ ・ 口 Ⅲ・ ・ ・・ ・口・・= コ, ・・ココ・・・・・ , 3
3 . 5 i ntens it y ofC R T . . . . . . . 口 口 B B 口 ロ コ ・ ・ コ ・ ・ ・ ・ ・ ・・・・… 口 … ロ ロ … … ・ ・ ・・=口・・・口 3
3 日6 No tes o nConnettio nvvi tha T ransless Equi
pment ロロロ, コ. 白
●●, ■●・コ ロロと
,=コ・
4
４D E SCR lP T 10NO NP A N EL
4.l G eneratA p p earance
482 D i
spl ay Bl o c k
4 .3 V erti cal B l ock
4 8
4Synchro ni zing Bl
ock
4.5 Sw eep Bl
o c k
4.6 R e a r P an e l .... . コ. ・口・・・・コ ロロ・・ 口  B ・・・・・, コ ロ= 口口B ロロL ・・・・= = 口 , 口 , ・ ・ コ ロ ' ロ
5. BA S i
C O PE RA T iO N S e…….… … … … … … … … Ⅲ… … … … ・… ・… ……………
11
5,l Ho w t o Disptav T r a c e L i n e ロロ. コ= ココ・コ・・・・・・・口, ・, コ中口  , = ロロ, ・・ロコB 口。日■
1 1
5。2 G a i nC heck i n g C a libra t ion W avefo r m . . . . ロ ロ E B ● 口 ■ 口 白 口白口●● ●●・口・・口。ロロJ 白●,1 3
5,3 HOw to U se a Low ―
capaci tance/Direct Probe r〔ロロBロロ・=J・
・
・
・
・・・・・E=口,口【・
13
5. 3.lSpecifi cati ons
5.3.2 0 peration of l ow capacitance probe
5,3. 3 A di
ustm entOf
pr
obe
5。
4 N oteo n D i
rect Connection and U seof Probe..t....・・・・・=ロロ・
・
・・ロロ
・。
と口。
14
5.5 G roundConnection.口...・コロ・・・ロロコロ・・・B,・・
=口・=・・・=ヨロロロ白
,■0■■日■■ ■
14
5 , 6 Dual T r ace M e a s u r e m e n t 口〔口. ..・・ ・ ・ ・・・… Ⅲ・・・, コロコ・・・口=口・・口, コ・・・・・・・ 1 4
5口6. l A LT ロ
5,
6. 2C HOP
5 .7 Synchron izati onto Waveform s口
.......口=Bコ・コロロ
,Bコ・・・・・・・。・ロロロロコロ
・=口
14
587.l M o de ofsynchro n i
zing sw eep
5ロフコ2 Selecti
onofsynchroni
zingsi
gnal
sou rce
5.フ.3 C oupting ofsynchronizi ng si
gnats
5.7.
4Set ecti
onofsynchronizati
onposi ti on
5 87 .5 B TIM Esynchroni
zati
on
5.8 C H…
1
0 U T PUT.…………… … …口 …・…… 口… … … ・… … … … … … … … … 18
４
５
５
５
７
８
０

6口 M EASU REM E NTSB口… … ………………=… …口………・ …・
……………………
6.l A C Peak V ol tage.… … ….………・… ロコ… … …… ・… … …・………………
6 . 2 DC V o tt a ge, . ロ ロ 白… 口 白●●■●口口・・・・a B , ココ・・ココ白… ■ ● … ■ ・ … ・・口・ ・・! 白 = 白 = 白 白
6 .3 DC ttA C P e a k V o lt a ge口 。 口 , . . . . ・ ・ ・a コ・・・・J ・・・・・・・・コロ・・中 ● 口 ● ● B B ・ … 口 ・
6.
4 T im e intervatM easurem ent コ………..…………=……・……………………
6 . 5 Fr e quency M e a s u re m e nt . . . . . ロ ロ ロ ロ ' こ ・白●  口 ● ロ ロ D B ● ● E ■ ・ ロ ロ ' 口 ' ・・・・・ = 口・・ロ
6 . 6 R i s e T i m e o f P u i se. . 口 . . . ・ ・ ・ ・ ・ ・ 口 白白白白●●●●口・・・・… ・・・・・・・ユ白, ■ ■● ● ・ , ・ ・
6. 6 .lM easu rem ent by Asw eep ont
y
6.6 .2 M easurem ent by Bsw eep(
del ayed sweep)
6. 6. 3 0 n Max im u msw eep′
0日2 μ
s/d iv ttfor bOth A and B [LBO‑5 24 L ]
6 .7 Phase D i fferencebetw een T w o S i
gnal
s ロロ. . . . tョ
.・ コ
白
●●口, ●コロ・・B =口・・・口〔ロ
ロ
6 口
8 M casurement ofPhase D ifferenceby X―
YO peratio n,..==,・口B・・・
==… ・口…
6.9 1ntensi
ty Al lodut ation T erm inal(
Z axi
s)....口.3■
,コ■,,コロロロ・・・
・
コ
ロ・コ=口B口・
7, M A iN T E N A N CEC A L iB R A T 10 N B Y T H E USERS . … … … . ……… . … … Ⅲ… … 2 3
iN T E R N A L M A lN T E N ANCEC ALlBRA T 10 N B YS P ECtA LiSTS ..……… … …
8 .l LayOut o f M a i n Parts and Adiu sters.… … … … … 口……………・
……………
8 .1.l LayO u t o fm a inparts
8口1.2 LayOutof
adj usters
8.2 Adi
ustm ents ofM ain A di
usters .… … … … ….………… … 口… … … ・… … …
8 .2.l V erti
ca l
gain
8. 2.2 V ertical D C bal
ance
882.3 A ST lG
8.2,
4Cali
brationoftimeax i
s
C O NNECT 10ND lA GRA M A N D S CH E M A T iC S.… 口… … =… ……・
… … … … …
９
９
９
９
９
０
０
１
１
１
１
１
２
２
２２
２
２
２３
３
３
２
２
８
５
２
６ ２
９

The LBO, 524[L1 0 scit10SCope is a portable one
wi ththe functi
ons of5 m V /div,(40 M H Z)′
500
μ
V/div,(5 MH z}′
maxi
m um sw eep raj o 20 ns/div.
(M A G x 10)′
and det
aved sw eep′
equi
pped w i
tha
6‑
inch rectangut ar m etat
‐
back CRT w i
t
h hi
gh
bri
ghtnessr internat
grati
cule and the ver
ti cal
sensitivi
ty m agni
fier.
CR T D i
spl ay
Ty pe
Acceleratin g Po tential
Effective d i sptay area
Beam Rotator
Gr ati cut
e l
li
um inati
on
intensi
ty M o d ut
ati
on
V erti calA mplifiers (CH‐
l and 2)
Sensitiv i
ty
Cati
br ati on A ccuttcy
Bandwi dt
h(
‑3
dB′ 8 div.
}
DC coupled
AC co u pled
Rise T im e
tnput lm ped ance
i
nput C oupling
Maxirnum in put
Si
gnatD el
ay[LBO ‑
524 L]
D i
spt
ay fⅥo d es
Pol
ari ty invert
CH‐
1
0 utput
H o rizontat
A mpt
ifier
Sw eep M ethod
A Sw eep T im e
BSweep T im e
C atib rati
on A ccu racy
Hol
d―
o甘vari
able
D el
av
Tim e Ji
tter
Sefting accu racy of d etay tim e
po si
ti on
M agn i
fier
M ax .S w eep T im e
:NTROD U C T 10 N
The LBO ,
524 [L]have a w ide range of
appl
icati on
in pr oductionand servi
ce areas for m easur
em ents
and testings ofT V s
et′VT Rs and computer
peri
pher
al equt
pm ents, si
ncethe T V synchro‐
nizationseparator′vari
able hold off and V ―
A X iS
magni
fier
functi
ons are provided ,
2. S P E C iFiC A T 10 N S
1 50 rnrn R ectan gul
ar′internal
‐
graticu le S ca le, Alu Flin i
Zed S c reen
and Fl at F acew i
thi‖u rnin ati
on iannp and Percentage scalet
7 kV /2 kV regul
ated
8x 10
div。
(
l diV.=10
m m )
Adj us
iment
on
fr
ont
panel
Continu o usi
v vari
ab le
3t an ked b y T T L LeveiS i
gnal
5 mV/
div,to 5V /
div. (
aH bandwi
dt
h)
′
0,
5 mV/
di
v.to 2 mV/
di
v
(5 M H z:
M A G x 10 )wi
th Vari
ab ie in 10 steps′1‑2‑5 sequence′
co ntinuousl
y vari
ab l
ebetw een steps.
±
3%{
±
5% : M A G x 10)
DCto 40
M HZ
〔
DCto 5 MHZ:
M A G x 10)
10 Hz to 40 M H z
9
ns(
70
ns: M A G
x10)
lMS と
±1.5%′
3 0 p Fw ith in ±5p F(T o l
erancei vvi th in ±2p F)
AC′ GN D ′
DC
600V tDC t
t
A Cp‐
p)
Leading edge d ispl
aved.
CH‑1′ CH‑
2,CHOP,ALT′
AD D
CH‑
2 1NVE R T
Approx.0 ,
lV /di
v.i nt0 50Ω(DCto 40 M H Z′
‑3 d B)
T ri
gger sw eep′ A uto matic tri
gger sweepr Continuo ust
y del
ayed
sw eeprand Tri
ogerdet
ayed sw eep
O.
2μ
s/divttto O.
2 s/di
v=
′1‐
2‐ 5 sequence 19 stepswi
thcontinuous
adj
uster.
0,
2μ s/div.t0 0.5 m s/
div
″
1‑ 2‐ 5
sequencell stepsa
±
3 %
One sweep or m o re
1/10, 000
±
3% approx.
10 jmes±
5%
20
ns/
div.〔
Mハ G x 10
0N)
‑1 ‑

Synchronizatio n
Si
gnal
Sources
Coupling
Si ope
Sensi ti
vi
ty
ALT,CH‐ 1′
CH‐
2′
LiN E′
EXT ロ
AC,H F‐ R E」
′
TV,
V′ TV‐ H
十Or一
B a n dw id thlN T .EXT:
N O R M 30
Hz‑1
0
MH
z
2
Hz‑10
M Hz 0 .
5 d iv ロ
1.5 d iv ,0.
2V p―
p
O.6V p‐
p
AUT030
Hz‑1
0
MH z
30 Hz ‑40 M Hz 0 .5 d i
vロ
1.5 d i v.0日
2V p‐
p
O. 6V p―
p
TV SynchronizationExtracts t
hes
ynchronizing si
gnal
f
rOm cOm pos i
te vi
deosi
gnal
andp ro v id es stab le synch roni
zati
ontt S i
opesw i tchi
s selected
acco rding to poi
ari ty ofvid eo si
gnal
s,
X‐ YM ode(XiCH‑1′
Y=C H ‐
2)
Sensi
tivky xaxis:5mV/div.to 5V /divロ
Yaxお
:5 mV/d" Bto 5V/d市
.
X axis Bandwi
dthD C or10 Hzto l M H z (3 d B′
ref.8 di
v.)
X―
Yp hase Less than 3 °at 100 k H z
Cali brato r
Output V o l
ねgeO .5 V p‐
p±
2%
Frequ ency Appro x , l k H z′
square vwave
POw er R equ irem e nts
LineV o i
tageA C 10 0 ′
120′
200,220,240 V 50 /60 H z
Power c O nsu m pti
on50W
S ize and W ei
ght16 0 (H)x290(
W)x3 7 5 (D)rnm ′
8.5 kg
Suppli
ed A ccesso riesD irect/Low capaci
tancepro b e L P‑16 B X 〔ロロ
.. . ロロ
,,ロコ
・・コ
・・・〔
2
BN C t er
m i
natadapt
er,....口=口。・
・口…・…・・・口=・・t
iコロ・・・
・コ・2
T im e t
ag
fuser… .… B… 口… .… ,… ・
中〔…Ⅲ… 口… ・… 口… ロー ・1
lnstructio n m an ual
. 口. . .. . 口ロロ
, 口= 口・・
・・,ロロ・= ・・ロロ・・
, 口= ロロロ
・1
0pti o nal
A ccesso riesProtective front cover
Accesso ries pouch
‑2‑

３NO T ES O NO PE R AT 'ON
3 .l Po w er So u rce R Vol
ta ge
App t
y theA C pow er o fa vol
tagethat i
s w i thi
n
±10 % vari
atio no fthe rated vo! tageas gi
ven in the
table below , O perati
ng at a vol
tage bel ow 1
0% or
more variati
onofrated val uem ay resu l
t in irn―
proper perfo rm anceof the L B O ,524[L]口A vol
tage
applied m o rethan10% vari
ati onofthe rated
valu e m ay damage thepow er suppl
y circu i
try.
The bu it
t,i npow er transforrner has taps of100 and
120V . Fi ve d ifferent ty pes of voi
tage ratings can
beset ected by rewiring the taps as shovvn in the
Term in3:
fi
gu res show n beiow , NOte the fuse rati
ng and
ty pew hen the pow ervol tage i
s
changed.
Rating
vol
tage
V o i tage range
(
±
10% )Fuse ratin g
100V
1 2 0 V
90 〜110V
l10 ′
V130V}十命M
E
LAG
200V
220V
240V
180 〜220V
200 〜240V
220 〜260V1培品徒
:LAG
3 .
40 peratio n in a H o t and H u m id Piace
The in strurne nt i
s d esi
gned to o berate ina ternper―
atu re range o fO °
C to ±
40°
C and relative h u nttd i
ty
range o f 10 to 90%ョO peratio n in a severe environ‐
m ent rnay shorten the l
ife ofthe instru m ent白
3口5 intensity
of C R T
Burn―
resisting fl ourescentt
phosphOr
)m ater
ial i s
us
ed in the C RT . But i
f
the C RT i
s tef
t W i tha
b ri
ght d ot o rtrace′or w ithunhecessaril
y raised
intensity ′i ts fio u rescent screen m ay be dam aged ロ
W hen o bservi
ng w aveform s′
therefo re′
the i
ntensi
ty
sho u l d bem aintained aモthe nli
nim u rn necessary
level
口i
fthe instrum ent i s to be l
eft w i
th thepo w er
on for a lo ng peri
od of ho urs′
low er the intensity
and o bscu re the focust
T errn inal A rrangem ent and W irin g Di
agram o fth e P o w er T ra nsfo rm er
AC in put
埼革猛￨
FuSE
3.2 S i
gnattnput
input si
gnat
s hi
gher than6 00 V (
ACp,
p +D C)′
applied to term i nal
s, rYl ay damagecircu it co rn―
po nents口
T he m ax im u m a1l
oM ble input
vol
tage is:
V e
t」
;ずがI R 柵im に Max 6 0 0 V いCP p キD0
External
synchro ni
zati
on
も
十路
瞥肝
『認
sa
me
as
the
abo
ve
Probe input
tLP‐
16 BX): Sam e asthe above
3.
3inftu en ce o fs tro ng Magneti c F i
e ld
Operatio n ina strong rrlagn eti
c fie ld w iH cau se
d i
sto rtio n o r svvin g ofd i splay waveform s o r r
n a k e
an ex cessi ve d ecline o ftraces w h en the instru m e nt
i
s u sed near an equi
prrle nt o rtransform e r o f t
arge
po w e rconsu mptio n . Therefo re avo id tou se the
in strurrl ent nearsu cha magneti
c fie ld so u rceコ
arrangem ent
Ｏ抑３
中巾≡い一︲︲ムｂ
Ｏ
ｍ３
品中一だし
郷
母
ａ
Ｏ
岬３
恥巾¨だｂ
劇
骨
󰿯
Ｏ
岬２
﹇
Ｈ中中３︲
０
耐２
郷
島
‑3‑

1:1
￨
I
N
4コ DES C R :P T 10 N O N PA N E L
in this instructi
onmanu a l, n u m e rais inc ircle s ind i
cateco ntro l k no bs,sw i
tches′ andth e lik eコ
3. 6 N o tes o n C o n necti
on w i tha T rans‐
less Equ S
p‐
men t
T he chassi
s ofa trans― less equi
pm ent m ay be ap―
plied w i
ththe prirnarypow er l i
ne vo l
tage. W hen
the oscillo sco pe i
s co nnected w i thsuchan equi
p―
m ent, care m u st betaken fo r the electric shock
whi
ch i
s hazardous.
Parti
cu larl
y w hen the system i
sgro u nd ed to
the earth for
the m easur
ernent of
C―
MOScir
cui ts
[V ertical
B l ock】[D i
splay Bl
ock]
o r the liker the instru m ent in the system o rthe
devi
ceto be tested m ay be dam aged by shorted
circu it.
T he safest 「lethodo fm a k i
ng the co nnecti
on i s to
useani
so l ati ontransfo rm e r o fl :l ratic as show n
below .
W hen the systern i
s tO be gro u nded, cOn nect the
earthiineto thegro undterrninal
oftheL B O ―
5 24 [L]ロ
[S w eep B lo ck ]
zi ng Bl
o ck ]
③
①
①
④
:[王王ヨ
°
一‑ 4 ‑

4.l Genera l
A p pearance
(E) Ha n d c a rrle r
②ど8
縄瑞
貫熱督札
ra
t
225
°
,F 予耐
yp
re弱
in each sto pper w ithboth hands′the hand
carrier 萌 ‖ be u n io cked an d ro tate freel
y.
Upo n release the hand carrier w ili revert to
lo ckedpo si tio n .
Legs for verti
calv iw ing and AC cord w inding:
These are legs fo r verti cal vievving and A C
co rd wi
ndi ng CO nven ience.
T o sto re or short
en A C co rd w ind around
iegs.
FU S E :
W henthe cap is tu rned to theco u nterclo ck―
w i
sed irecti
onw i
thp lu s― ty pe screw d river′
the fuse can be rem oved . Note the ty peand
rati
ng ofthe fuseu sed .
[Di
spl
ay B l
ock ]
③ lLLUMc
o
n
ttdi
TO adiust grati
cu le illu m inad o ni C i o ckw i se
rotation increases bri
ghtness.
③ ②ROTAT10N
co
n
t
rol
:
Adiust the RO T A T 10Nscrew adiu ster usi
ng
a screw dri
verr When the trace l ine i
s not
horizontal
.
① FO C U S co ntro l:
To attain rnaxirnu nn trace sharpnessロ
lN T E N contr
ol
:
TO adi
ust the over a1l bri
ghtness of
thё C RT
di spl ay. C l ockw i se r otati on increases bri
ght―
ness.
僅⑥
③ P
ottrcordt
Di
splay B lo ck
Pow er二ON/ェOF F swi
tch:
Pushi nto tu rn i
nstru m entpow er on and offt
② Gr
ajc
』e
4,3 Ve rtical B l
o ck
O Ⅲ
CH」Vet
tc
tt
P
o笥古
onconttd
① V A RIA B LEt
CH‑ l or
t t sensttvky ttne
adj
ust er}
′
PULL x10:
A re the ver
ti cal sensi tivity fine adj
uster s
capable of conti
nuousl
y att
enuating from
eachV O LTS/D iV r
ange indi cation value to
②門
bt
ttmp:
‑5‑

[Vertica l B I
tess than 1/2.5 ofthe
value selected,
i
nvoi
tage rneasurem ents′the V A R I A B LE
knob shoul
d be turned ful i
clockw ise to
the C A L′
D〕positi
On.
W henthe kno b i
spu ‖ed′the sensi ti
v i
ty is
magn ified by a facto ro f 10. in this case′
noises increase andthe frequency band is
squeezed to a band vvidtho f5 M H z,
W hen the su per hi
ghsensitivi
ty(500μ V/oi v.)
i
s nct requ ired′ keep the kno b pushed ‐
i
nB
① VOLTS/D i
VにH打or
tts
en笥古 宙
t
y
stttcけ
謎吊稲ど鑑i品 灘 甘電群ポ
h
ぴlSi
獣 牧 野
operati o n, the kno b functi
ons to changethe
sensitivi
ty ofthe X ― axis.
Ｏｃ
ｋ
①
Ａ
ｏ
ａｒ
ｅ
ｔ
ｈｅ
ａ
ｔ
︐
２
ｅｎｉ
ＣＨ
Ｗｈ
Ｏ
① CH打or図lN:
Thi
s i s an i
nput
plug for us
e w i
tht
he C H‑
1
verticalam pti fier
and X ‐ axi
st
horizontal
axi s)
am pt i
fier du ring X― Yo peratio n .
(E) 土 G round terrn inal
O V A R lA B IEにH‑
2 or
tt s
ens間宙t
y ttne
adj ust
er
】
′
PULL
x
T he sam e as ttem
10
i
⑭ abOVe forc H‐
2 .
O VOLTS/D i
V(
CH‐ 2 or
tt
senゴ
廿宙
t
y
s輔tcけ
描
路
;
端を鴨
端艦
!
ぴ督
盟
程
sensi
tivi ty ofthe Y―
axi
s.
CH‑ 2
or匝□l
N:
T h is i
s anin putp l
ug for usew ith theC H 2
Verti
Ca l
am plifie r a nd Y‐
ax i s(verti
cal
axis)
am plifi
er during X―
YOper
ati on.
AC‐
GND― DC(
A i
ternating Current一
G r
ound一
DirectCurrentSwi
tch}
′
CH‑ 2i
薔縄騨附1隅鑑ぷ縫
d irect cu rrentco mponent is b i
ocked by a
capaci
to r. T he G N D pOsi
tio n grOunds the
i
t
tpttin]f t
とァ
amplifiers and O pens the input
CALO .5 V p―
p(C alibrati
o n w ave):
S i
gna1
0 utput terrninal fo r am pli
tudeand
pro be cali
b rati
oni Frequency i
s l k H z.
ap prox .
￨は5V け
p
④工艦需:
P°L ュiN V ,にH‐
2P執 荊 ty h確 高 On
Set at 」L (push‐
out)for nOrrnal
operati
On.
IN V 。(inversion)(
pushin)′thepol
arity
thesi
gnal
applied to C H ‐
2 w i1l
be inverted.
④日◆
Ⅳ
et
tc
t
t
p
os
t
ton
a
du
St
me n
3:
廷D VER T M OD E :
D eterm ines the m o deo fd ispl
ayロ
C H ‐
1;
O n t
y the in put si
gnar
appliedto C H‐
1
d i
spl ayed ,
CH, 2;
On t
y the in put si
gnal
app lied to C H‑2
d i
splayed .
CHOP(
ra
pi
dswi
tc
hing
dis
pl
a
yル
Fo r d ual
‐
traced i
spl ay ′ w h en C HOPis setected ′
rectangu l
ar w avefOrr
nOfabo ut 250 k H z is
hi
gh‐
speed sw i
tched and dOtted‐
line d i
splayed
re
g
a
r
dle
sstheA Tl
M E(
main
s
wee
p)
コ
A LT (
alternatedisplay),
Fo r d ua卜
traced ispl
ay,w h en A LT i
ssel
ected ′
the C H ‑l an dC H‑2 are al
ternative t
y sw itch ed
fo r every sweep ofth e A T lM E {main sw eep).
ADD。
(
A ddi
ti on),
The inputsi
gnal
s ofC H‐
land
al
gebrai
calt
y ad ded and d i
spt
ayed i
CH‐ 2pol
ari
ty inver
sion sw itch
lN V .
′
su btracti
on i s acco mpli
shed .
‑6‑

C D AC―
G N D‐
DC(A l
ternatin g C u rrent一G ro u nd―
D i
rect C urr
ent Sw i tch)
′
CH‐
1:
Thesame
asi t
em C) abOVe
f
or CH‑
1.
4. 4 Synchronizing B: ock
tSynChrOni
zing Bl
ock]
工S LOPE ュ+/一‐
′TV PO L, (
synchrOnization
si ope′
TVp01
ar
i
ty):
Whentri
ggered sw eep is required wvi
tha
positive sl
ope ofa w aveform o nthe screenr
select (
キ
〕
, and w面tha negative siope, select
(
一). You m ay select ei
ther one w h i
chis
co nven ient.
①呂私論と
謂
E
:
5こど補輪
踊盟
AUTO:
Set the knob to a convenientposi
tion for
the starting Oftri
ggered sw eep ofthe A
T lM E〔
main sweep) .in thiS Cas
e′ when t
he
setting value i s out ofchanging po rti
onof
the o bservatio n w aveform ′ the synchro‐
ni zatio nsw eep stopst
W hen the tri
Oger m o d e is set to the PULL
NOR M position′
the vttveform onthe screen
disappears, At the PU S H A UTOpOsi
tion′
th e trace w ili fl
o w .
At the PRESET 〔 f
uHcount
er
‐
ct ockw i s
e at
th e n o tched posi ti on)′the L EVEL is p reset
at the m id d te ofthe w aveform .
A HO LD OFF (
vari
able knob):
Ad
i
u
stS
h
Old
o
ff(
p
a
use
)t
i
me
O
f
t
heA TIME
(main sw eep)コ Pause d m e beco m es i
onger
w hen the knob i
s tu rn ed to the(
3
1N C d irec―
ti on′and the bri
ghtness ofthe di
splay de‐
creasest
No rm aHy ′the w h i
tem ark ofthe knO b i
s set
at NORMpo si
ti onw here nOtched at the
mid d ie.
W hen thepui
se train i
s to besynchronized
as show n in the fi
gure bel
ow ′the kno b is
tu rned to anap p ropri
atepositi
O n w h ere the
げ
紺次
謎舟
∫盟
inど
艦貿:
督
品
i
3
品pi 企
縫
も
響結『評
も
献L!
ぷ盟岳
紺い
e
Si
gnal
suchas p ui
setrainis interm i ttentl
y repeated .
/
/
／
ん
￨￨￨
① EX T .T R l
G .l
NPU■
i
sthe i nput tlr『n inal for externai
synchro‐
n izati
o n si
gnals. A s the i
nput am pl
i
fier i
s in
DC coupl
i
ng′the D C com ponent shou!
d be
elim inatld by a capacitor(
about o .lμ
F)′
w henthe input ACsi
gnal i
s su perposed o n
DC of
m ore than ± 2V コFur
ther,care m us t be
taken no t to ap p l
y a vo i
tage ex ceed i
ng the
max i
m u tt a ‖
owab lё in pu t v O l
tage′ 6 0 0 V
(ACp‐
p tt D C).
S O U RCE :
Selects the synchro nizati
on si
gnai sou rceas
foHow s:
A LT :
A l
ternativet
y ex tracts the verti
cal in put
漱1 3f
f
ttt艦 ど
a誤譜沓艦端 維
m ust be set to A LT , W hen the V E R T MOD E
i
s set to C H‑1, CH‐
2′or A D D , synchr
o―
ni
zation i
s available by setting the SO U RCE
to A LT . (For the A D D ′
the synchr
onizati on
i
s made w iththe C H‐
2日
)
CH‑1:
The vさrt
i
calinput si
gnalof
CH‐
l i s extract
ed
forthe synchronizationロ
CH‑ 2:
‑7‑

The verti
cal input si
gnal of C H‑
2 is extracted
for
thesynchrOnizati
onロ
L IN E tri
gger (pow er
synchronization):
T hep9W er suppl
y si
gnat i
s usedas the
synchronization si
gnal
sourceofthe A /B
T IM E.
EXT,TR l
G口
(
exter
nal
synchr onizati on):
i
s useギto ext
erna‖
y appl y the s
ynchr
o―
n izatio n si
gnal.
C D CO U PttNG:
Selects cO u pl
ing of synchron izatio n si
gnal
as
foil
oⅥ
ぉ:
AC:
l
s selected w hen synchro ni
zatio n i
s to be
made wvi
than A C si
gnal
of2 Hzto 3 5 1M H z.
Norm a‖
y,AC coupl
i
ng i
s sel
ected コ
Howvever′ w hen sytt
chrOnizati
onis to be
縛 3ぴ&′
孔
得ま
る1難 資牌猟」
縄
pu1led to setto the PU L L N O R hll
posi
tion.
H F R EJ:
Fo r m easu rem ent of a wavefo rm of l
ess than
10 k H z, w h i
ch inctudes noi
ses andparasi
tic
osci
l
tati
o n Ofsi
gna,s hi
gher thanabo ut 100
k H zr thi
s HFR EJ i
s used to elim inate the H F
co m po nehts to o btain a stable synchro―
ni zati
on.
干
¥
:
伊
}S
y
n
c
h
se
p
ar
ation
o
fコ「
V
p
i
c
ture
s
i
g
n
al
:
W hen theCO U PLiN G i
s s
et to one of
thes e
mo des, synchr
onizationi
s available fro m
the com posite pi
cture si
gnal of
T V /V T R to
get a stable d ispl
ay, becausethesirnil
ar
synchseparati
oncircui
t as in a TVset i
s
activ e ,
4 .5 S w e e p B lo ck
[Sw eep B iockl
図◆(
Hottzontal
pott
jon
ttustmend:
Pattern m oves to the ri
ghtw ith ci
ockw ise
rotatio n and to the left w i
thcO u nterc1
0ckw i
se
rotatio n .
As t
tne and r
oughadi usim ents are avail
able
by the dual
―
knob′
by turning theouter knbb
(Fl
NE)′fine adi
uStm ent i
spOssible w hen
the hottzontal m agnifi
er (Al lA G x 10)is usedB
O n X ‐ YOper
ati on′ adi
ust the hOrizontal
posi
ti on of
the X ―
axis (
CH‑1)by thi
s contr
ol .
○
① T lM E VA RIA BLE′
PULL x10
MAGョ :
Makes cOntinuoust
y vattable ■ne adj
ustm ent
betw een ranges of theA T lM E(main sw eep}a
No rm a ll
y ′tim e m easu rem e n t に m ad e at the
C A L ′ [〕
pOsi
ti onw here the knO b i
s tu rned
fu Hy ci
ockw ise
W hen the kno b i
spu l
led′
thetrace is m agn i
―
fied b y a facto ro f10tO the horizontal
d irecti
on.
命
腱
艦も 紫
電培g
灘観
′
転
梶
艇淋品n
t
品ず毬掲
g搬耕
迅瞥僻
濫
品
:猟
督
橘
諦
鮮推
ピ
8デ
甘持中置
烏腎盟盟
:
群
甘
と
濫
f
:器
陥塩
檻
瑞
株
塩合珊:
執
冊
メ
品岩
訟
梶
f
i絲1
ま歌甘瑞ど
鑑;品
E
品
t
h
eA TIME
/
DiV.Th
e
scalev
a
l
ueindi
cat
in
g
i
li
t
t驚〕
せ;1臥
Ψ
t
tF「品督
Si
ま
h
t
teど
8喚括￨
キ
提
i
t
苦
① B ttME/
DiV ma
g
ttne
dswee
p
lttmeaxる
y
溜盟汁瑞
!
3
鳥解
鞘滞
Sと'拡笥
ダ
BLEknob i
s not provided for
the B T thll
E.
C 〕 D E LAY T I
M E 10ィ
otatt
on d湖:
Sets thestarting point〔
delay ti
me)ofthe B
Tl M E (
det
ayed sw eep)against
the A T lME
(main swveep),
D i
gi
ts l thro u gh10 d ispla yed in a sm a H
window a bove thed i
ala re p reca lib rated
correspo n d in g to th e d i
v,sca le o n the C R T ロ
S ca lesO through9 9 o nthe d ia l face co rre‐
spo n d to su bsca l
es
fo r singie d iv .
′
in a rel
atio n ‐
shi
p Of10 =o 。l d iv .
描料鷺′
描[鮒Ω后糾艦ど盤 瑠
co nti n u ousi
y cO rrespo n d tO the d i
al′b u t i
t
iu rnpS tO the n ex t tri
ggeredp o i
nt.
① Ama
hsw e
p
l
:
W hen the H ORI
ZD i
SPLA Yswi
tch i s set
to
thi
spOsiti
on,the A T i
M E (
m ai nsweep:
norm al
sw eep)i
ssel ected .
‑8‑

T IM E/D iV .
①
in ten sity m o d u latio np ortio n
lN TEN B Y B :
This sw i
tchis u sed to intensi
tyィn ark the
馴瑞E薔
監鮒枢
嘱
梢
綺
(m agn i
fi
ed sw eep)sw i
tch,
STA RT 工/ュA FT E R DELA Y/T R l
Gr
D :
T h e A swveep starts sw eepin g in synchro ‐
n izati
onw i thti
gger si gnai
su ch as o fthe i
nput
si
gnal
. in th i s case′
there are tw O m ethOdsof
starting the Bsw eep, one i s thecontinuous
d el
ayedsw eep r and the other i
s tri
gger de‐
l
aved sweep.
Norm aHyr the co nti nu o u s d el
ayed sw eep i
s
used to ma ke a m agn i fied d i
sptay ′where
the ST A R T button i
s
pulled outri
te.
′
A FTER
D E LA Y′and the B sw eep i
s star ted im ―
ぴ理と
評常1 借淵二 珊督t
景
稽 点と贈8
i
s used′thepo rti
onto be m agnifiedcanbe
co ntinuo usi
y m o ved and be freel y setコ
T he fi
gures bel
ow i‖u strated the ab oved escribed .
C o ntin u o u s d et ayed sw eep:
称結 d t ted 靴 描.品i鮒 ;
h
t t
u
se侶ゴ瑞[
A FT E R D ELA Y.
品 淵 脚ぴÅ鑑跳i
陀°h eN t t M ぃ
辞
私e
ttt
苫置
LttTtt
E: 景
8
t
も
増瑞ぼ塩
謎i
一、
D E L A Y T IM E′
灘辞
岳
淵
鮒
札
↓
R借
ぴ晋
i
鮮欝 騨晋modけ
鷲が
電
楳:
鮮
:
]だ
毘P ‖in th e screenw h en
‑9‑

吊lei
h
乳
1岩
む
‖
話c!:幡常 ,を島
。
く
2 t: 岳『
l
i
骨
を1老ど
晶】
,i!￨
synch ro n izati
oni
stO be m ad e w i
tha speci
al
pu i
se
tratn .
牌
置
鮮堵
紀品」i
格品
品盟
淵諾 i
乱盤
&口
靴
押
が
dΥ器l
G′ D
to
p
us
h
e
t
tn
p
o村jO
n
(specia ld el
ayed rnagn ifi
catio n )t
① Asw eep
T he starting point oftheintensity mo du l
atio n
is synchronized w i
ththe ri
se Or fa‖
po rti
onby
turt
ting
the(D D E LA YT lM E kno b=
O A IN TENB YB
T ri
ggeri
ng Ofthe B sw eep i
sm ade by thepui
se
just after hel
d by
the D ELA YT lM E .
① Bsweep
As the B sw eep i
s also being tri
g9ered by the
inputsi
gnal
′
ji
tter i
s decreasedcom paredw i
th
thecO ntin u O u s d et
ayed sw e ep=
4.6 Rear Panel
穏′
智督譜謎 静 ミ愚忘犠鮮弾
tinu ousi
y m o ve′and a repeati
tive w avefo rrn is
keptsti
llw ithout change.
淵的
前Z
tti鮮
播
i
ド
鷲
n
『
l
h
」
轡
靴ず
路β
tude of the screenis availableぉ T he C H ‑1
0 U ttP UTter
rninalw illbe described in secti
On
6.8.
② CH判0じTPU・
The input si
gnalapp l
i
ed to the C H‑l i
s alw ays
availab le o nth i
s B N C term inal
′
via the verti
cal
C H .lp ream pli
fier and thebutter am plifi
er
ofthe oscilio sco pe.
Wi
ththe 50‑o hm terrninati
o n′
the output of
about 100 m V p―
p per a singie d i
v. in ampli
‐
′
′
/
1ヽ
ミ
11 い￨
ｒ
ｒ
ｒ
ｒ1『
′
rｌ︑
／
／
Ｋ
￨
○ て
A対
S
iNPU■
The intensity m o du lationsi
gnal
to be app lied
to the d i
splay wavefo rrn i
s input to thi
s
term in al. T h i
s Z A X iS iNPUTterm in al w ill
be descri
bed i ndetailin section フ
.14 .
一
‑10 ‑―

５B A SiC O P E R AT :O NS
Th i
s sectio n d escri
bes the basi
c
di
s
play the cal
i
br ationwavef orm 〔
Vp‐
p)o n the osci1
loscope.
5, l H ow to D ispay T race L ine
When the i
nstru rnent i
s to be used fo r the first
FU SE
Pow er
co r d
POW ERJL/■ON/OF F
lLLU M
ROTAT10N②
FO C US
tN TE N
◆
(
C
H
‑
1
1
V A R lA B LE {
CH‑1)
PUL L x 10
VO LTS/D iV (
CH‑1)
CH‐ 1 lN
V A R IA B LE {CH‐ 2)
PUL L x 10
V O LT S/DlV(CH‑ 2)
CH‐ 21N
AC‐ G N D ― DC(
CH‐
2)
CAL O. 5V p‐
p
CH‐ 2 PO Lロ
◆〔
CH
‑
2
)
V ERT M OD E
AC‐
GN D‐ DC 〔 CH‑
1)
Ｏ
ｒ
０
．
０︐
ｎｓ
Ｌ
ＯＡ
Ａ
ｔ
ｉ
Ｃ
ａ
めtirne′set thesw itches and knobs as
beiowy
′
and tu rn o n the pow er
tod isplay
linet
The sam e setting and the procedure as
can be used to check i
fthe instrum ent
operates.
ind icated
the trace
i
nd i
cated
co rrectl
y
④
⑤
⑥
③
③
①
①
②
⑭
①
①
①
①
④
④
②
④
④
④
④
(10 0 V rating〕lA′
tim e tag type
A fte rthe in i
ti a lsetting are co mplete′
ap p l
y th e p ow ero fthe rating vo ltage .
Push o n the p o w er sw itch ′
afterthe
in itialsetti
ngs.
Fu ‖c io ck vvise 白
A d iu st if the trace line i
s n o t h o rizo ntal=
S et th e w h ite p o in t at th e 12 o ′ cio ck
d irectio n.
S et the w h i te p o int at the 2 o ′ cio c k
d irectio n.
Set the w h i tep o i
nt at th e 12 o ′ c io c k
d irectio n .
Fu li c io ckw i
seto C A L ′
Dp o sitio n
(no tch ed ).
Pu sh in .
0 .lV /d i
v白
Open
Fu licio ckw ise to C AL′ Dp o sitio n
t
notched).
Push i n,
0.lV /
di
v.
C onnect the p robe LP‐ 16AX( x l).
DC
T ouch the probe ti
p ofthe C H‑
2 input.
工 Push out (
NORM }
.
Set
the w hi
te pointatthe 12 o′ cl
ock
di rectio n.
A LT
DC
in iti
al settings o fthe ele m e nts:
Nam e o fe lerTle n t B asic setting
一 ‑
1 1
‑―

②
④
④
①
③
②
③
①
①
③
③
①
①
④
Pus
h in ュ∈弟N T EN BYB
JLA F TER D E L A Y
:艦 iR t t δ路維 名輔i
薔;盤 温:
i
bl
捕札
li
ghted sho w ing the p ow e r o n′ in 10 seco nd s
square w avefo rm and the trace line are d i
sptayed
onthe screen as sh ow n in the fi
gure ri ght,
Further′adiuStthe① FO C U S to get a sharper
trace , in e. When the ho rizon tal trace line i
s not
ne昭
鮒e
靴品盟
Z
ぴ盟絆1啓ポ
:冊
using a scr ew dr:ver.
S LOP E
LEV EL
PU L L NOR M /PU S H AUTO
A H O L D O F F
EXT T R IG lN P UT
SO U RC E
C O U PL iN G
や→F IN E
JL+
Setthe wvhite point
fuH counter
―
clockw ise
to PR ESETposi
tion (
notched) .
Pushi
n( AUTO).
FuH counter
ci
ockw i se to NOR M position
(
notched).
Open
CH‑ 2
AC
Set both the vvh ite points ofthe adiuSters
of the duat
‐
kno b at the 12 o′
ciock
d irectio n ,
Fuii
clockw i
se at CA L′ Dpositi
on
(notched ).
Push in.
0,5 m s/d iv.
50μ
s/d i
vョ
( ) T lM E V A R lA B L E
PU LL x 10 M A G
A T lM E/Di
V
B T lM E/D iV
D E LA Y T IM E
A
lN T E N
B
ST A R T
︑︱
︱
声
︱
ノ
Ｂ Ｙ ＢHO R fZ
D i
SPLA Y
T race line
of C H‑1
W avefo rm o fC H‐ 2
／
/
／
＼
｀ ‐
＼
―‑ 12 ‑―
Bsw eep p Ortio n w ithintensi
ty m o d u lati
o n

5. 2 Gain C hecki
ng by C ali
bration Waveform
T he si
gnal
avai lab le from the ② CA L is cali
brated
as the o ne withO .
5 Vp‐
p′
square wave′
and aboじt
l kH z in frequency. T hus′
it canbe used not oni
y
for
the cali br ation of the verti
calaxi s
gain′
but also
for roughcalibration ofthe ti
m e axi s.
As show n in the above table of the ini
ti alsettings′
w hen the O, 5 Vp―
p si
gnal of the C A L term i
nal i
s
ap p li edto the O.lV/d iv . range usi
ng the x l
p ro be′
the verti
cal am plitu d e o f5 d iv. is d isplayed . T he
CH‑l i s al so appli
ed w i th the C A L si
gnal
.
Fur
ther as the si
gnal is syrnrnetri
cal square w ave‐
form ofl k H z in frequency′
the upper
and l
ow er
flat lortiO ns ofthe square w aveare d i
spi ayed
in every single d iv i si on w h en the O コ5 m s/d i
v= i
s
setected ロ
By the above d escribed operati
o n ′the co rrect
operati
o n o fth e o sc illo sco pe canbechecked,
5。 3 How T o Use a L o w ‐
capacitance/D irect Pro b e
T he L P‐
16BX P ro be is an extrem e t
y vve ‖d esi
gned′
h i
gh‐ perfo rrna n cep ro be equ i
ppedw ith Xl attd
X 10 sw itch ing fu nctio ns.
5 .3 .l Speci
fi
catio ns
Maxirn u m in put vo i tage:
2 50V rm s o r 6 00 V D C
(
1
)AtX 1
0
input resistance: 10 的1ヽ2
input C apacitance: 2 5pFo r iess
C o rrecti on range:
O sci!io sco pe w ith i
n‐
putcapacitance 20 ‑
40pF
A ttenuatio n
facto r:1/10 ± 2%
Frequency range: D C ―‑ 40 hllH z
Xl,X10 in d icatio n
(
2)At
Xl
i
nput resi
stance: lM Ω
i
nput capacitance: 250pForless
Fr
equency range: D C ‑5MH z
5.3.
2 0 per ation of lowcapacitanceprobe白
T urn the knob and gri
p to the required
positio n to set the arrow to X l or X 10.
T he kno b and gri
p m ay be turned i
n any
d irectio n,
(1)Measurem ent at X10
T he probe ex hibits hi
gh resistance and low
capacity at X 10. H ow everrthe input voト
tage i s attenuated to 1/10 and′ther
efore′
thi s m ust be accounted for in voltage
m easu reme ntと
M easu red v o ltage =S ensitiv ity of o sc i1lo ―
sc
o
p
e
V
/
di
vX sc
re
e
nam
p
litud
ediv
X1
0
At X 1
0r it i
s necessary to co rrect the pu ise
characteristic by adj
usti
ng the capacitor in
thep ro be fo r fi
at to p ofthe square w ave
calibratio n vo itage.
(2)Measu rem ent at X l
This p ro be m a intai
ns h i
ghsensitiv ity in the
X l p ositio n so that it rnay be used d i
rectl
y
vvith the oscilio sco pe. Ho w everr the in put
capacity i s large appro x 。250pF′and i
t i
s
neclssary to take th is into acco u nt w hen
m a k i
ng m easu rem e nts.
(
3) How tO us
e the s
trai
ght
ti
p
F o r the use ofstrai
ght,
ti
p′ please detach
the retractive hoo k ti
p as show n i
n illu―
stratio n.
T he strai
ght ti
p i
s extrem el
y co nven ient
w hen testing po ints o n pri
nted circuit
boards.
R etractab le h oo k ti
p
＼Eatthcov旨＼H。。
k cov e r
＼Earthcli
p
C apaci ty correcti
Ontrim m er
―
‑13 ‑―

if
you tu rn the hookcover cOunter‐
cl ockwi se,the hookcover w i‖com e off.
5。 3.3 A di
ustm ent ofprobe
TO adiu st th e p ro ber CO n nect as sh o w nbe―
l
o w a nd tu rn the v ariab l e capacitorin
th e p ro be co n necto r u sin g a sm a li screw
driver′ to p ro v id e p ro pe r squ are w ave
co m pensatio n .
5, 4 No te o n Direct C o n nectio nand U se o f P ro be
Fo r sm a‖si
gn a l rneasu rem ent o f a hi
gh im ped ance
si
gnal so u rce′ as m easu re m e n t e rro r m ay be
intro d u ced b y th e n o i
ses in d u ced to the inpu t
cab le a n d b y lhe infl u ence o fparaHei capac i tance′
use o fa lead w ire sho uld be avoid ed and a sh ie ld ed
w ire su ch as coax t
al cab l e m u stbe u sed 口 T h e
l
ength O fth e sh i
etd ed w ire sho u ld be as sh o rt as
possib le = FOra hi gh i
mped a nce c i
rcu it′
attentio n
sh o u ld be p a id to th e lo ad effect in w h ich the su m
o f th e in pu t capacitance o fthe o sc iH o sco pe a n d
th e d i
strib u ti
o n capac ita nce o fthesh ie ld ed w ire
influ en ces th e si
gnat
source. W h en the i
nflu e nce
o f thepara lie i
capac ita nce o n the si
gnal
source
i
s n o t n egtecta b le′ u se the X 10 1o w ‐ capacity
pro be,
Note o nU seo fL o w ‐
capaci
tance Pro be
To avo id m a nv i‖effects by di reCt CO nnectio n ′
u se
a lo w ‐ capac itance p ro be (X10 )as rn u ch as p ossib le コ
W h en th i
sp ro be is u sed ′
in put im pedance is 10 M S と
′
2 5 pF′
th u s rn a k in g i tp ossib le to red uce the lo ad ing
effects u po n the si
gnal
so u rce to a great ex tenta
Ho w ever′
w h e n th e p ro b e is u sed at X 10 ′
千
he in put
si
gnal i
s attenuated to 1/10′thi
s m ust be taken
intoaccount in aH m easu rem e nts,
5 。5 G rou nd C o n n ectio n
Stral
ght tt
p
Fo r gro u ndco n nectio n ′use the sho rtest po ssi
b l
e
w ire as d escribed i
n S ecti
on5 .4 .
When u sing ap ro be, co n nect to a groundpo i
nt
clo seto the si
gnal
so u rce′a nd u se thep ro be
gro u nd w i
re.
5 口6 DualT race Measu rem ent
T w O vertical ax is input ci
rcui
ts arep rovided i nth i
s
i
nstru rrlent, and the w aveformsOfthe tw o input
si
gnal
s are a l ternatel
y sho w n o n thescreen by
m eans ofane lectro n ic swピitch. Howvever′since
there i
s o n l
y o ne horizo ntal
sweep circu itrit i
s not
po ssib le to have thlvo synCh ro n ized o rio ck ed ―
in
wavefo rm s o ftw o u n re l
ated ′ind ependent in put
si
gnal
s sirnu itaneo usl
y o n the screen. Tw o d if―
ferent m eth o d s are avaHab le foralternatel
y sw itch―
ing oftw o si
gnal
s m a ki
ng useofthe electro n ic
switch i
5 .
6 古l AL T .
A L T ョ(A i
ternatio n )serves to sho w tw o
si
gna lsr CH‑l and C H‑2′a lte rn ate l
y sw eep
by sul
eep.
Fticker increases at a l
ow speed sweep′
slow er than O ,5 m s/di
v.
, sothat m easu re‐
m ent・
is inco n ven i
ent. insuch a case′
us(
the C HOPm o deコ
5,6 , 2C HOP
CHOPperform s sw itching be抑げeen tw o
si
gnals′CH‑l and C H‐
2′ in h i
ghspeed
(
about 2 50 k Hz)and d isplays the tw o
w avefo rm s o n the screen so that both
waveforrns io o k continuo ust
This m o de i
s r nainl
y used fo r a siow speed
sw eep. When it i
s used fo r a h i
gher
speed
sw eep of
m ore than O,
5 m s/ divコ
′
the tt ace
may be d i
spt ayed as a dotted li ne.
5.7 Synch ron i zati
on to Waveform s
T he m ost im portant
facto r in operating the osci 1l
o‐
scope i s to lo ck and d i
splay wavefo rrnsproperl
y
before m easu ring them.
Over
‑14 ‑一

(1) Method ofsynchro―
n izatio n sw eep
A uto sw eep(
AUTO)
Sync.sw eep(NOR M )
③ PuS
h
① P
u11
(2) Setecti
on of synchro―
nizatio n si
gnal
sourcゃ
(
SO U RCE)
lnternal
CH‐ 1/
‐
2 alternat ive
internal
Pow er si
gnal
E x terna l
CH‐
1
ALT
CH‐ 2
LlN E
EX T
①
ヽ
︱
︱
〜
十
１
ジ
(3) C o upling of synchro ―
nizatio n si
gnal
{
CO U PLlN G)
AC co upling
H F erim inatiOn
T V ― V extr
action
T V ―
Hextr
actlon
②
お︱
︱
〜
︱
︱
ジ
Ｊ Ｅ Ｒ
Ｖ
Ｈ
Ａ
Ｃ
Ｈ
Ｆ
ＴＶ
Ｔ
Ｖ
(4) S etectio n of synchro ,
n izati
onpo sitio n
(L E VE L ′
S L O P E ′ and
HO L DOFF)
Vari
ab le of start
positio n(とE VEL)
S lo pe o f w avefo rm
(SLOP E )
T im in g ofsynch ro n i
zati
on
(
A H O と
DOF F )
④ knOb
②ニキ
/
一
ェ
④ knob
T o m ake the m o stuseofthe synchro n izing capa―
city ofth i
s instru r le ntr ap ro perrnetho d of o per―
atio ni
s d escri
bedb e lo w ′ taki ng waveform s as
an ex ampl et
To o btain co rrect sync h ro n i
zatio n ′thep roced ure
of i
tem s{1)thro ugh(
4)sho w r l
in thetab le above
mu st be fo ll
o vved . T h e tab le sho ws the synchro―
nizatio n o f the A T lM E (ma insw eep). Th e
synchronization of
the B T ll WE{
m agnified sw eep)
i
s
descri
bed i
n sectio n5.7.5,
By appr6pri
ate setectio ns andadiuStm ents ofthe
abovem enl1
0 ned contro l knobs and sw itchesr a
Stable w avefo rr
n canbe d isplayed.
Fo「
m easurem ent
of
si mple waveform s,Set
as
欝
巷
盟雛塁
靴堤
w hite point of
the A H OL D OFFat the 12 o′
ct
ock
directi
on (NORM).
5.7.l Mo d e o f sync h roniz ing sw eep
G enera tl
y′ fo r w avefo rm s w h i
chhave a
frequ e ncy o f 50 Hzo rm o re and are no t
comptex′
use A UTOsynchr
onization口 A t
AU T Os
ynchr
oni zation′
the sw eep
circuit i
s
auto m ati
ca‖
yp l
aced in the free―
run state
when the afo rem enti
Oned tri
gger pui
se i
s
not p rO duced and a hO ri
zOntal
trace i
s
:
,
1
掃
y献
ど
:
r
R
3s
P
i
t
i
Veo
f
Aswee
pt
irneset
To rem ovew avefo rrns o n thescreen w hen
品∬
温
詳
鑑
∵
前壁
甘
私
8i
t
5t
智
補
る
柵
5 。7 .
2 S e lecti
o n o f synchro n i zin g si
gnal
so u rce
internal:
No rm aHy′ synch ro n izati
onis m ad eb y
昭
S
苦
毬じ慎
樫
・
に
整恐名
:
】
ず
a
辞
活
:
:
‖:
CH‑ 2 inputri
t
i
s set
to C H‑ 2.
W h e n the C H‑lw aveform i
s d i spl ayed by
settin g theCH‑1′and the synch ro―
幣』灘 プ酬 冊l 構 電
予
樹 胤 淵 母 景
si
gnalto C H‑2, the synchron izatio ni
s
avail
abl e. O f
courser the C H‑
2 w avef orm
can be d i
spl ayed by setting the A LT /
CHOPJ
in a d ual
‐
trace A LT di
spr ay, synchro―
nizati
Qni
s aVail abl ebygetting
the synchro‐
nizati
onsi
gnalfrom ei
ther
one ofC H‑l and
C卜
1
‑
2 w h i
ch are applied w i
thsi
gnal
s having
整
灘
縄
°
解
dむ
j
墳沖
,
・
tだ鞘薔
r
棚
s
y
n
c
h
ronize
t
h
ou
g
h
t
he
rei
s
n
os
y
n
c
hr
o
―
雑
d
ttt
B補
瞥
鞘艦‖典;
路船 協
be used for observati
ons of
the recti
fier
/
fil
ter circu i
t, A l so′when the pow er fre‐
quency is thesam e wvi
ththe verti
cal
synchro n izatio n frequency ″ e.
9コ
′6 0 H z′
w i
tha T V setO fpOw er non―
synchro―
n izati
onsystem ′
the L iN Esynchro ni zati
on
si
gnalcanbe used tO deterr
n i
ne if the
o bservatio n si
gnal i
s ofsynchro n izati
on
pu l
ses o r
ofthepow er ri
ppler by o bserving
stab le o r fiow ofthe trace d i
spl ayロ
15 ‑一

T he C H ‑l and C H,2w avefo rm s being o b―
senl ed are in a synchro n i
zed rel
ati onshi
p ′
if the frequency ofthe bo th i
s the sam e,
a stab te synch ron i zati
on i s availab ie by
selectin goi
th ersi
gnal as the synchro ‐
n i
zati
onsi
gnal
口 W hen the frequencies are
d ifferent′by sel
ecting the lo w er o neas
thesynchro n izati
onsi
gnal
′the traces of
the bothchannei
s vwili be stab le.
5,7 .
3 C o u pl
i
ng o f synchro n izing si
gnal
s
Even w h en the synchro n izing si
gnal is
actuating the synchro n iz ing sw eep circu it′
it i
spossi
ble tc have u nsta b le synchro ―
n izati
ono fthe w avefo rm s being o bserved B
!n this
case′ selectthe CO U PLiN G s
witches
as fo‖
o Ⅵ岱 so thatpro per
synchron izati
o n
i
s obtained .
Norr
m a lw avefo rm o bsew ati
o n
Setsw i
tch② at A C . A t thi
s
poi
nt′
the synchronizi ng
si
gnali
s connected to the
synchronizing swveep circtti
t througha
capaci
tor
′thus eli
m i
nating t
he DC com ―
ponent andp ro vides stab le synch ron izati
on
over th e w ho le band vvidtho f2 H z o r
h i
gher. A C coupling takesp l
acew i
th
synchro ni zati
onthat i
s nct affected by a
change in the DC co m ponent ofthe w ave―
fo rrns being o bseN ed コ
Wavefo rrn si
gnal
superpo sed w i
th noi se
W hen synchron izati
on i s u nstab le′though
thesynchron izatio n svveep circu i
t i so per―
atin9′due to t
t
t
e S
ynchr
oni
za
t
i
ons
i
gnal
Su plrpOSed w ithnoi
sesuchas o f h i
gh
frequ ency′
th e H F R E」functi
Onsho u ld be
sel ected .
T he synchro n i
zatio nsi
gna1
9oes th ro ugh
the 1
0 w p ass fil
ter and the u n n ecessary
hi
gh frequency cO m pOnents hi
gher than
100 k H z arerem o ved, sO that a stab le
synch ronizati
on i savail
able.
T .V 」
(V id eO)co mposite w aveforms
in T .V . v id e o w aveforms′hO rizonta l and
verti
cai synchro n iz ing co m ponents are
co m b in ed コ i t i s′therefo re, very d iffi
cu i t
to ap p l
y synch ron izati
onto the h o rizO nta l
co m po n en t o r verti
cal co m ponent白
in thi
s case′th e h orizonta l and verti
cal
synchro n izatio nsi
gn a ls are auto m ati
ca‖
y
sepa rated fronl theco mpo si
tep i
ctu re
si
gna l ′
andthu s a stab le synch ron izati
on i s
avail ab l e . T h e T V―
V si
gnal
synch ro n i
zes
wvi
ththe verti
calp u l
ses′and the T V‐ H
si
gnaisynchro n izes w i
ththe h o rizo ntal
pu lses.
S et th e S L OPEsw i
tchto tt o r ――d e pen d in g
Onp Or arity of v i
d eo cO m posi
tesi
gnalョ
5 .7 .4 S electi
ono fsynchroni zati
onp Osi
ti on
in a tri
gge red sw eep ty p eO sci11
0 sco pe′ it is
possible to adj
ust theposition ortirning
of
starting Ofthe w avefo rrn so that stab le
tri
gger (
starting)pu i
ses m ay be o btained ロ
A dj ustm ent ofstarting(
tri
gger)posi
ti on
To m ove the synchron izatio n positi
onto
:
品
晋
督
品
∬
怪
影
:
智ば
8:轡e
警品薔
bel o w .
STA R T
―
L E V E L
if noi
se is produced in the upper
part of
w aveform s due to abnorm al
oscill
ati onor
the likerjitteri
ng may occur in the displ
ayt
starting pOint to the secti
on having no
noi
se′
to provi de stable d i spl av.
→
―‑ 16 ‑一

撤
酬
:
鞘
苫
杵艶
鮮
掛
f替鞘
at abo ut the rn id d ie ofthe w aveform .
Se lectio n o f w av eform slope(SL O PE十
/一)
For exampl
er in case of a squ are wave′
es
peciaいy when i
itt
et
tng i s taki
ng place in
the fali
porti
on′stable synchroni
zati
on
器: 品 欄謂盤甘旨輔 t:景
!
け習n凛
ti onsto sel
ectthe siope(
rise or
fa‖secti
on〕
Ofthe starting (tri
gger)point Of th i
s
synchro n i
zi ng si
gnatw avefo rm .
(in C Orre ct)
〔
―
}St
arting at
negative sl
ope
section w i
thji
ttering{一)
/F剖
i
(
+)Starti
ng at
posi
tive si ope
￨
￨
11
11
Ttt
ggering
putses
￨
】
bY u n requ
11
:服梢
『
￨
『
拠
n
δ
鮒8
弘
o
F
F
knob.
一‑ 17 ‑一
ノ中
(COrrect)
For
co rrect d i
spl ay
ofthe trace,the
synchr oni
zation
sw eep m ust betri
ggered
by thesepuises.
in pu t sign at
Synchro ni
zation sw eep w ave
ofthe oscilioscope tri
ggered
by pui ses other
than requir ed
synchro ni
zati
onpui ses
Synch ro ni
zatiO n sw eep w ave
ofth e osci1loscope tri
ggered
by th e correct synch ro n i
zatio n
pui
ses
Wro ng d iSplay
Co rreCt d iSplay
Stable ri
se secti
on{+〕
￨
い
――
古
恵
《
」