L
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IN
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POWER SUPPLY ISOLATION PROCEDURE
u'
3
(1
I;
‘ )
Ea ch regulated sup ply has n u m ero u s fe e d p o in ts to
e x te rn a l loads througho ut th e in s tru m e n t. T h e p o w e r dis
tribution d iagram s are use d in con jun ction w ith the
sch em atic d iagram s to d e te rm in e th o s e lo ad s th a t c a n be
isola ted
by
rem oving
service
ju m p e rs
a n d
those
th a t can not.
T h e p o w e r distribution an d circuit bo a rd in te rc o n n e c
tions d iagram s a re divided into circuit b oa rd s. Ea ch p o w e r
supply feed to a circuit b o a rd is indicated by th e s c h e m a tic
d iag ram num be r on w hich the vo lta g e a p p e a rs . T h e
sch em atic diagram ‘grid location o f a service ju m p e r or
c o m p o n e n t is given ad jacen t to th e co m p o n e n t n u m b e r on
th e p o w e r distribution an d circuit b o a rd in te rc o n n e c t
diagram s.
If a p o w e r supply com es u p a fte r lifting o n e o f th e m a in
ju m p ers from the p o w e r supply to isola te th a t s u p p ly , it is
ve ry p ro b a b le th a t a short e x is ts in th e circuitry o n th a t
supply line. By lifting ju m p ers fa rth e r d o w n th e line, th e cir
cuit in w hich a sho rt ex is ts m a y b e lo c a te d .
AC Waveforms
w a r m i n g
|
In s tru m e n t m u s t b e c o n n e c te d to th e a c -p o w e r
s o u rc e u sing a 1:1 isola tion tra n sfo rm e r. D o n o t con
n e c t th e te s t osc illos cope p ro b e g ro u n d le a d to the
in v e rte r circ u it te s t p o in ts i f the in s tru m e n t is n o t iso
la te d . A C -s o u rc e voltage e x is ts o n re fe re n c e points
T P 9 5 0 a n d T 9 0 6 p in 5.
DC Voltages
P re re g u la to r an d In v e rte r v o lta g e s a re referenced to
te s t p o in t n o te d a d ja c e n t t o th e vo lta g e . P o w e r sup ply out
p u t v o lta g e s a r e re fe re n c e d t o cha s s is groun d.
A lw a y s s et th e P O W E R s w itc h to O F F b e fo re soldering
o r unsoldering service ju m p ers o r o th e r c o m p o n e n ts a n d
b e fo re
atte m p tin g t o m e a s u re c o m p o n e n t re s is ta n c e
v alu es.
REV OEC 1986
Содержание 2230
Страница 12: ...2230 Service X The 2230 Digital Storage Oscilloscope 4998 01 ...
Страница 32: ...Operating Information 2230 Service 4998 04 Figure 2 4 Power and display controls and power on indicator 2 5 ...
Страница 33: ...Operating Information 2230 Service Figure 2 5 Vertical controls and connectors 2 6 ...
Страница 48: ...Operating Information 2230 Service Figure 2 11 X Y Plotter interfacing ...
Страница 56: ...Theory of Operation 2230 Service 4999 01 3 2 Figure 3 1 Simplified block diagram ...
Страница 68: ...Operating Information 2230 Service Figure 2 11 X Y Plotter interfacing ...
Страница 76: ...Theory of Operation 2230 Service 4999 01 3 2 Figure 3 1 Simplified block diagram ...
Страница 82: ...Theory of Operation 2230 Service 510 499 9 02 Figure 3 2 Block diagram of the Channel 1 Attenuator circuit 3 8 ...
Страница 98: ...Theory of Operation 2230 Service 499 9 06 Figure 3 6 Horizontal Amplifier block diagram 3 24 ...
Страница 111: ...Theory of Operation 2230 Service 3 37 Figure 3 9 Acquisition Memory timing ...
Страница 190: ...Maintenance 2230 Service 999 14 Figure 6 3 Isolated kernel timing 6 9 ...
Страница 218: ...Maintenance 2230 Service 4999 37 Figure 6 7 Location of screws and spacers on the Storage circuit board 6 37 ...
Страница 329: ...PUT Figure 9 2 S em ico n d u cto r lea d co n fig u ratio n s ...
Страница 332: ...2230Service CHASSIS MOUNTED PARTS ...
Страница 334: ...A14 CH 1 LOGIC BOARD ...
Страница 337: ......
Страница 344: ...u sr z z o 1 ...
Страница 347: ...i n 5 a O Q q o u S a o h UJ s a b c d e f g h j k l m n ...
Страница 352: ......
Страница 355: ...WAVEFORMS FOR DIAGRAM 5 4999 83 ...
Страница 358: ...I W L U O U rc a 4 2 s ...
Страница 361: ...WAVEFORMS FOR DIAGRAM 6 S 84 ...
Страница 362: ...2230 Service TEST SCOPE TRIGGERED ON U665 PIN 8 FOR WAVEFORMS 31 THROUGH 33 ...
Страница 365: ... I I ...
Страница 366: ...A 1 6 S W E E P R EFEREN CE BOARD FIG 9 17 2230 Service Figure 9 17 A16 Sweep Reference board ...
Страница 369: ... o 0 UJU sa eg aiu c u J in su eg 5 C sis n g e s o N QO ...
Страница 371: ...Static Sensitive Devices See Maintenance Section CM I rv CD o 2230 Service ...
Страница 378: ......
Страница 384: ... I I c o C u o a 5 r O tD v j If 3 IV if I I ci if 5 3 I ...
Страница 386: ......
Страница 388: ...H K L M N 7 8 8 2 2 3 0 INPUT OUTFUT WIRING INTERCONNECT ...
Страница 392: ...W A V E F O R M S F O R D IA G R A M 14 ...
Страница 393: ...2230Service 0 0 d s t 4 9 9 9 9 5 ...
Страница 394: ...2230 Service TEST SCOPE TRIGGERED ON U911 PIN 21 FOR WAVEFORMS 64 THROUGH 69 4999 92 ...
Страница 396: ... ...
Страница 397: ...WAVEFORMS FOR DIAGRAM 15 TEST SCOPE TRIGGERED ON U9111 PIN 21 FOR WAVEFORMS 70 THROUGH 77 ...
Страница 399: ......
Страница 403: ......
Страница 404: ......
Страница 405: ......
Страница 406: ...2230 Service n CD O O i 0 s a f s s o m O F ig u re 9 5 D e ta ile d S to ra g e b lo c k diagram 4999 22 ...
Страница 409: ......
Страница 415: ...IMF PU TPR A IR TM FQ U I W A V E F O R M SF O RO IA G R A M1 5 W A V E F O R M SF O R i ...
Страница 417: ...4999 9S ...
Страница 419: ...i s 5 0 C C p F 2 CC p 2 a u 4 I s c c O 2 e e o 5 a o 5 i 2 i f 2 E C 52 ...
Страница 421: ...TEST SCOPE TRIGGERED ON U4105 PIN 9 FOR WAVEFORMS 121 AND 122 TEST SCOPE TRIGGERED ON U4227 PIN 10 i 4999 97 ...
Страница 423: ...W A V E F O R M SF O RD IA G R A M1 8 O c n ...
Страница 424: ...Figure 9 22 A11A1 Input Output board ...
Страница 427: ...WAVEFORMS FOR DIAGRAM 19 TEST SCOPE TRIGGERED ON U6103 PIN 1 FOR WAVEFORMS 126 AND 127 4999 98 ...
Страница 430: ...Figure 9 23 A11A2 Vector Generator board ...
Страница 434: ...49 9 9 tOO ...
Страница 436: ......
Страница 437: ...22 3 0 S ervice W A V E F O R M S F O R D I A G R A M 2 1 m f n h ...
Страница 442: ...WAVEFORMS FOR DIAGRAM 22 4999 78 ...
Страница 443: ...XY PLOTTER BOARD DIAGRAM 22 See Parts List for serial number ranges ...
Страница 444: ... u i o IO U J J i o D U I 1 t ir u j t O 0 X I c a a 3 4 2230 4999 71 REV FE8 1987 XY PLOTTER BOARD 22 ...
Страница 447: ...A21 RS 232 OPTION BOARD Flfi A 9 K 01 01 W M ...
Страница 450: ......
Страница 452: ...COMPONENT NUMBER EXAMPLE ...
Страница 455: ...r n n i i i i n O T IA ll D A A o n XY PLOTTER BOARD P in A23 OPTION MEMORY BOARD FIG 9 27 A22 GPIB OPTION BOARD ...
Страница 459: ...A16 SWEEP REFERENCE ADJUSTMENT LOCATION ...
Страница 467: ...2230 Service ...
Страница 468: ......
Страница 474: ......
Страница 475: ...2230 Service ...
Страница 476: ...2230 Service ...
Страница 477: ... D ...
Страница 483: ...2230 Service ...