Maintenance—2230 Service
Table 6-13
PU TEST Failure Codes
Failed
Part
U4113 and U4119 Code
Crt Failure Code
Pins
Pins
Pins
Pins
In Binary
12
13
14
15
(from pu q)
19
18
17
16
ROM
U9109 (E0000)
0
0
1
0
xxxx xxxx xxxx xxxl
U9110 (E8000)
0
1
0
0
xxxx xxxx xxxx x x lx
RAM
U9203
0
1
0
1
xxxx xxxx xxxx x lx x
U9202
0
1
1
0
xxxx xxxx xxxx Ixxx
U9233
0
1
1
1
xxxx xxxx xxxl xxxx
U9232
1
0
0
0
xxxx xxxx x x lx xxxx
U9201
1
0
0
1
xxxx xxxx x l xx xxxx
U9231
1
0
1
0
xxxx xxxx Ixxx xxxx
NMi
1
0
1
1
xxxx xxxl xxxx xxxx
For example, if the calculated value is A4D2 and the
value stored in the ROM is 23DA the following error mes
sage is displayed on the crt:
SYS_ROM_1 : A4D2 < > 23DA
SYS_RAM. This test checks the system RAM. The test
writes a 0xAA55 into 100 bytes of display memory. It then
checks the data to make sure that the data has not
changed. The test is then repeated using 0x55AA.
NOTE
Firmware version 01 only displays the address of the
bad RAM.
If an error is found, the address (greater than 0 but less
than 8000) of the error, the actual data found at the
address, and the data that was expected at that address
are displayed on the crt:
SYS_RAM : @ <address>
<actual data> < >
<expected data>
For example, if the address of the bad cell is 0x4000,
the data found at that address is OxOF, and the expected
data for that address is 0x4F the following error message
is displayed on the crt:
SYS_RAM : @ 4000 OF < > 4F
NIB_RAM. This test checks the nibble RAM. The test
procedure and the error message format are the same as
for SYS_RAM.
ACQ_AB. This test checks the address bus of the
acquisition memory. Twenty one unique patterns are
written into the address counters (U3423 U3424 and
U3425) and read back through the acquisition address
buffers (U3427 U3428).
NOTE
At power-up this test and all others are transient
and not active at the time of the power-up failure
messages.
Push the SELECT C1/C2 switch to stop pattern
changes. The test loops using the pattern for the first
error found. All patterns used are shown in Table 6-14.
If an error is found, the value read back and the value
expected are displayed on the crt:
ACQ_AB : read-back <actual> < > <expected>
6-22
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 ...
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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 ...
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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 ...
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Страница 397: ...WAVEFORMS FOR DIAGRAM 15 TEST SCOPE TRIGGERED ON U9111 PIN 21 FOR WAVEFORMS 70 THROUGH 77 ...
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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 ...
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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 ...
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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 ...
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