Maintenance— 2230 Service
7.
Remove the three securing screws from the Timing
circuit board (the screws are located at the right front
comer, left front side by the SEC/DIV switch shaft, and at
the right rear corner of the circuit board).
NOTE
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 Tim
ing circuit board.
8.
Pull the Timing circuit board straight back from the
front of the instrument until the circuit board interconnect
ing pins are disengaged and the switch shaft is clear of
the Front-Panel circuit board.
9.
If removal of Sweep Reference circuit board from
the assembly is desired, perform the "Sweep Reference
Circuit Board” removal procedure steps 3 through 7.
NOTE
Ensure that the Timing circuit board interconnecting
pins are aligned to the Front-Panel circuit board con
nectors before reinstallation.
To reinstall the Timing, Sweep Interface, and Sweep
Reference circuit boards assembly, perform the reverse of
the preceding steps.
SWEEP INTERFACE CIRCUIT BOARD SEPARATION.
To remove the Sweep Interface circuit board from the Tim
ing circuit board perform the following steps.
1. Use a vacuum-desoldering tool to unsolder the 22-
wire strap W1304 from the Sweep Interface to the Timing
circuit board.
2.
Remove the Sweep Interface circuit board and clean
the wire-strap holes in the Timing circuit board.
To reinstall the Sweep Interface circuit board, perform
the reverse of the preceding steps.
Bottom Shield, Attenuator and Timing Circuit
Boards Assembly
The Bottom Shield, Attenuator, and Timing circuit
boards assembly can be removed and reinstalled as
follows:
1. Place the instrument upside down and remove the
three screws and one spacer post securing the Bottom
shield to the Main circuit board.
2. Perform steps 1 through 9 of the "Attenuator,
Channel 1 Logic and Channel 2 Logic Circuit Board"
removal procedure.
3. Perform steps 2 through 5 of the “ Timing, Sweep
Interface, and Sweep Reference Circuit Boards" removal
procedure.
4.
Pull the Bottom shield, along with the attached cir
cuit boards straight back from the front of the instrument
until the interconnecting pins on the circuit boards are
disengaged and the switch shafts are clear of the holes in
the Front-Panel circuit board; then lift out the entire
assembly through the top of the instrument.
5.
If accessibility to the bottom of either the Attenuator
or the Timing circuit board is desired, refer to step 10 of
the “ Attenuator, and Channel 1 and Channel 2 Logic Cir
cuit Boards Assembly" removal procedure and to step 7
of the “ Timing, Sweep Interface, and Sweep Reference
Circuit Boards Assembly” removal procedure.
To reinstall the Bottom Shield, Attenuator, and Timing
circuit boards assembly, perform the reverse of the
preceding steps.
Front-Panel Circuit Board
The Front-Panel circuit board can be removed and rein
stalled as follows:
1. Perform the "Storage Circuit Board in Servicing
Position" removal procedure.
2. Perform the "Support Chassis” removal procedure.
3.
Perform
the
"Cathode-Ray
Tube"
removal
procedure.
4.
Perform the "Bottom shield, Attenuator and Timing
Circuit Boards Assembly” removal procedure.
5.
Remove the knobs from the following control shafts
by pulling them straight out from the front panel:
a. Channel 1 and Channel 2 POSITION.
b. A/B SWP SEP.
c. Horizontal POSITION.
d. B TRIGGER LEVEL.
6-44
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 ...