Maintenance— 2230 Service
2. Perform the "Support Chassis" removal procedure.
3.
Remove the remaining six screws that secure the
top attenuator shield and ground strap (from the Front
Panel circuit board) to the Attenuator circuit board and
bottom shield.
4.
Remove the top attenuator shield from the
instrument.
5.
Disconnect the following connectors from the Chan
nel 1 Logic and Channel 2 Logic circuit boards, noting their
locations for reinstallation reference:
a. P6111, a three-wire connector from Channel 1
Logic circuit board.
b. P6112, a three-wire connector from Channel 2
Logic circuit board.
6.
Remove one screw each from the front of the Chan
nel 1 Logic and Channel 2 Logic circuit boards.
7.
Unsolder the two-wire strap from the rear of both
the Channel 1 Logic and Channel 2 Logic circuit boards.
8.
Remove the Channel 1 Logic and Channel 2 Logic
circuit boards from the instrument.
To reinstall the Channel 1 Logic and Channel 2 Logic
circuit boards, perform the reverse of the preceding steps.
Attenuator, Channel 1 Logic and Channel 2 Logic
Circuit Boards Assembly
The Attenuator, Channel 1 and Channel 2 Logic Circuit
Boards Assembly can be removed and reinstalled as
follows:
1.
Turn the instrument over (Main circuit board up) and
remove two screws securing the Attenuator circuit board
to the BNC bracket (located underneath the CH 1 OR X
and CH 2 OR Y input connectors).
2.
Unsolder the two resistors from the CH 1 OR X and
CH 2 OR Y input connectors. Turn the instrument over
again (Storage circuit board on top) to continue with the
Attenuator, Channel 1 and Channel 2 Logic circuit boards
assembly procedure.
3.
Perform the "Storage Circuit Board in Servicing
Position” removal procedure.
4.
Use a 1/16-inch hex wrench to loosen the set
screws on both the CH 1 and CH 2 VOLTS/DIV Variable
knobs and remove the knobs.
5.
Set the CH 1 and CH 2 VOLTS/DIV switches to the
same position. Note switch positions for reinstallation
reference; then remove the knobs by pulling them straight
out from the front panel.
6. Perform the "Support Chassis” removal procedure.
7.
Remove the remaining six screws that secure the
top attenuator shield and ground strap (from the Front
Panel circuit board) to the Attenuator circuit board and
bottom shield.
8.
Remove the top attenuator shield from the
instrument.
9.
Disconnect the following connectors from the Chan
nel 1 Logic, Channel 2 Logic and Attenuator circuit boards,
noting their locations for reinstallation reference:
a. P6111, a three-wire connector from Channel 1
Logic circuit board.
b. P6112, a three-wire connector from Channel 2
Logic circuit board.
c. P9103, a four-wire connector located behind the
CH 1 VOLTS/DIV switch assembly and underneath the
Channel 1 Logic circuit board.
d. P9108, a four-wire connector located behind the
CH 2 VOLTS/DIV switch assembly and underneath the
Channel 2 Logic circuit board.
e. P9991, a three-wire connector located between
CH 1 and CH 2 VOLTS/DIV Variable controls and
Channel 1 and Channel 2 Logic circuit boards.
10.
Remove the screw from the left rear corner of the
Attenuator circuit board.
N O TE
The insulator on the left rear corner o f the Timing
circuit board may be loose. If the insulator is loose,
remove and save it for the reinstallment o f the
Attenuator circuit board.
6-42
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 ...