Maintenance— 2230 Service
11. Pull the Attenuator, Channel 1 Logic and Channel 2
Logic circuit boards Assembly straight back from the front
of the instrument until the circuit boards interconnecting
pins are disengaged and the switch shafts are clear of
both the Front-Panel circuit board and the two Input Cou
pling switch shafts (located between the front panel and
the subpanel). Then lift out the entire assembly through
the top of the instrument.
12.
If removal of Channel 1 Logic and Channel 2 Logic
circuit boards from the assembly is desired, perform the
"Channel 1 Logic and Channel 2 Logic Circuit Boards”
removal procedure steps 6 through 8.
NOTE
When reinstalling the Attenuator, Channel 1 and
Channel 2 Logic circuit boards Assembly, ensure
that the interconnecting pins are aligned with the
Front-Panel circuit board, connectors and that the
two resistors (soldered to the bottom o f the Attenua
tor circuit board) are not touching the Front-Panel
circuit board. Push the Attenuator circuit board for
ward and, at the same time, press the front end of
the board down slightly. Align the two Input Coupling
switch shafts with the front-panel holes by moving
either the Channel 1 or the Channel 2 Input Coupling
switch knob.
To reinstall the Attenuator, Channel 1 and Channel 2
Logic circuit boards assembly, perform the reverse of the
preceding steps.
Sweep Reference C ircu it Board
The Sweep Reference circuit board can be removed
and reinstalled as follows:
1. Perform the "Storage Circuit Board in Servicing
Position” removal procedure.
2.
Disconnect P9410, an seven-wire connector located
behind the SEC/DIV Variable control on the Sweep Refer
ence circuit board.
3.
Disconnect P5201, a three-wire connector located
on the right side of the Sweep Reference circuit board.
4.
Unsolder the two resistors from the Timing Circuit
board on the right side of the SEC/DIV Variable control.
5.
Remove the shaft extension by loosening the
setscrew with a 0.50-hex wrench.
6. Remove the SEC/DIV variable control nut with a
9/16 inch open-end wrench.
7. Remove the Sweep Reference circuit board.
To reinstall the Sweep Reference circuit board, perform
the reverse of the preceding steps.
Timing, Sweep Interface, and Sweep Reference
Circuit Boards Assembly
The Timing, Sweep Interface, and Sweep Reference cir
cuit boards assembly can be removed and reinstalled as
follows:
1. Perform the “ Storage Circuit Board in Servicing
Position” removal procedure.
2.
Use a 1/16-inch hex wrench to loosen the set screw
of the SEC/DIV Variable knob. Remove the SEC/DIV Vari
able knob.
3.
Set both A and B SEC/DIV knobs to the EXT CLK
position. Use a 1/16-inch hex wrench to loosen the two
set screws that secure the A and B SEC/DIV knob; pull off
the knob from the shaft assembly.
4.
Use a 1/16-inch hex wrench to loosen two set
screws securing the A SEC/DIV dial to the shaft assembly.
Remove the dial from the shaft.
5.
Disconnect the following connectors from the
assembly, noting their locations for reinstallation reference:
a. P9700, a 10-wire connector located on the right
edge of the Timing circuit board.
b. P9705, an eight-wire connector located at the
rear of the Timing circuit board.
c. P6421, an five-wire connector located on the
Sweep Interface circuit board.
d. P9410, an seven-wire connector located behind
the SEC/DIV Variable control on the Sweep Reference
circuit board.
6.
Remove the screw located at the right rear of the
Attenuator circuit board (securing both the Attenuator and
the Timing circuit boards to the Bottom shield).
6 -4 3
Summary of Contents for 2230
Page 12: ...2230 Service X The 2230 Digital Storage Oscilloscope 4998 01 ...
Page 33: ...Operating Information 2230 Service Figure 2 5 Vertical controls and connectors 2 6 ...
Page 48: ...Operating Information 2230 Service Figure 2 11 X Y Plotter interfacing ...
Page 56: ...Theory of Operation 2230 Service 4999 01 3 2 Figure 3 1 Simplified block diagram ...
Page 68: ...Operating Information 2230 Service Figure 2 11 X Y Plotter interfacing ...
Page 76: ...Theory of Operation 2230 Service 4999 01 3 2 Figure 3 1 Simplified block diagram ...
Page 98: ...Theory of Operation 2230 Service 499 9 06 Figure 3 6 Horizontal Amplifier block diagram 3 24 ...
Page 111: ...Theory of Operation 2230 Service 3 37 Figure 3 9 Acquisition Memory timing ...
Page 190: ...Maintenance 2230 Service 999 14 Figure 6 3 Isolated kernel timing 6 9 ...
Page 329: ...PUT Figure 9 2 S em ico n d u cto r lea d co n fig u ratio n s ...
Page 332: ...2230Service CHASSIS MOUNTED PARTS ...
Page 334: ...A14 CH 1 LOGIC BOARD ...
Page 337: ......
Page 344: ...u sr z z o 1 ...
Page 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 ...
Page 352: ......
Page 355: ...WAVEFORMS FOR DIAGRAM 5 4999 83 ...
Page 358: ...I W L U O U rc a 4 2 s ...
Page 361: ...WAVEFORMS FOR DIAGRAM 6 S 84 ...
Page 362: ...2230 Service TEST SCOPE TRIGGERED ON U665 PIN 8 FOR WAVEFORMS 31 THROUGH 33 ...
Page 365: ... I I ...
Page 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 ...
Page 369: ... o 0 UJU sa eg aiu c u J in su eg 5 C sis n g e s o N QO ...
Page 371: ...Static Sensitive Devices See Maintenance Section CM I rv CD o 2230 Service ...
Page 378: ......
Page 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 ...
Page 386: ......
Page 388: ...H K L M N 7 8 8 2 2 3 0 INPUT OUTFUT WIRING INTERCONNECT ...
Page 392: ...W A V E F O R M S F O R D IA G R A M 14 ...
Page 393: ...2230Service 0 0 d s t 4 9 9 9 9 5 ...
Page 394: ...2230 Service TEST SCOPE TRIGGERED ON U911 PIN 21 FOR WAVEFORMS 64 THROUGH 69 4999 92 ...
Page 396: ... ...
Page 397: ...WAVEFORMS FOR DIAGRAM 15 TEST SCOPE TRIGGERED ON U9111 PIN 21 FOR WAVEFORMS 70 THROUGH 77 ...
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Page 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 ...
Page 417: ...4999 9S ...
Page 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 ...
Page 423: ...W A V E F O R M SF O RD IA G R A M1 8 O c n ...
Page 424: ...Figure 9 22 A11A1 Input Output board ...
Page 430: ...Figure 9 23 A11A2 Vector Generator board ...
Page 434: ...49 9 9 tOO ...
Page 436: ......
Page 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 ...
Page 442: ...WAVEFORMS FOR DIAGRAM 22 4999 78 ...
Page 443: ...XY PLOTTER BOARD DIAGRAM 22 See Parts List for serial number ranges ...
Page 447: ...A21 RS 232 OPTION BOARD Flfi A 9 K 01 01 W M ...
Page 450: ......
Page 452: ...COMPONENT NUMBER EXAMPLE ...
Page 459: ...A16 SWEEP REFERENCE ADJUSTMENT LOCATION ...
Page 467: ...2230 Service ...
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Page 475: ...2230 Service ...
Page 476: ...2230 Service ...
Page 477: ... D ...
Page 483: ...2230 Service ...