5-42
Performance Verification
1) Verify that the displayed trace A : Average (1) is on the screen, near the center
horizontal graticule line. If the trace is not visible, modify the
DC
voltage
reference source output
until the trace is within
±
2 divisions of center.
2) Connect the DMM and record the
voltage reading
in Table 13, column
DMM
.
3) Disconnect the DMM from the BNC T connector.
4) Press
Clear Sweeps
5) After 100 sweeps, Read off the
DSO Mean parameter
voltage, and
record the
measurement in Table 13, column
Mean
.
!
Repeat the test for the other channels, substituting channel controls and input
connector. Record the measurements in Table 13.
!
Set DSO input gain to
5 mv/div
and DSO Offset to
−−−−
1 Volt
on all 4
Channels
.
!
Set the output of the external
DC voltage reference source
to
+1 Volt.
!
Repeat steps 1), 2), 3), 4) and 5) on all 4 Channels.
!
Record the measurements in Table 13.
!
Calculate the
Difference (
∆∆∆∆
)
by subtracting the
DMM voltage
reading from the
DSO mean
voltage reading. Record the test result in Table 13, and
compare the
Difference (
∆∆∆∆
)
to the corresponding limit in the test record.
b. DC 1M
Ω
Ω
Ω
Ω
!
Recall
LC564D050.PNL
or configure the DSO as shown in 5.8.1.a. and
for each Channel make the following changes :
Input Coupling
:
DC 1M
Ω
Ω
Ω
Ω
on all 4 Channels
Input Gain
:
5 mV/div
on all 4 Channels
Input offset
:
−−−−
1 Volt
on all 4 Channels
!
Connect the test equipment as shown in Figure 5-7.
!
Set the output of the external
DC voltage reference source
to
+1 Volt
.
1) Verify that the displayed trace A : Average (1) is on the screen, near the center
horizontal graticule line. If the trace is not visible, modify the
DC
voltage
reference source output
until the trace is within
±
2 divisions of center.
2) Connect the DMM and record the
voltage reading
in Table 13, column
DMM
.
Содержание LC564DL
Страница 12: ...x Table of Contents ...
Страница 18: ...2 4 General Information ...
Страница 46: ...4 22 Theory of Operation 4 6 2 Power Supply Block Diagram ...
Страница 59: ...Performance Verification 5 13 ...
Страница 70: ...5 24 Performance Verification ...
Страница 95: ...Performance Verification 5 49 ...
Страница 115: ...Performance Verification 5 69 ...
Страница 122: ...5 76 Performance Verification Figure 5 14 1MΩ Ω Ω Ω Rise time Equipment Setup ...
Страница 148: ...6 14 Maintenance 6 6 4 Fan Problem ...
Страница 149: ...6 6 5 Power Supply Voltages Problem Maintenance 6 15 ...
Страница 150: ...6 16 Maintenance 6 6 6 Display Problem ...
Страница 151: ...6 6 7 Front Panel Controls Do not Operate Maintenance 6 17 ...
Страница 152: ...6 18 Maintenance 6 6 8 Remote Control GPIB or RS232 Problem ...
Страница 153: ...6 6 9 Performance Verification Fails Maintenance 6 19 ...
Страница 154: ...6 20 Maintenance 6 6 10 Floppy Disk Drive Problem ...
Страница 155: ...6 6 11 Graphic Printer Problem Maintenance 6 21 ...
Страница 156: ...6 22 Maintenance 6 6 12 Centronics Problem ...
Страница 157: ...6 6 13 Hard Disk Drive Problem Maintenance 6 23 ...
Страница 158: ...6 24 Maintenance ...
Страница 181: ...Mechanical Parts 8 1 8 Mechanical Parts Figure 8 1 LC564DL Cabinet ...
Страница 182: ...8 2 Mechanical Parts Figure 8 2 LC564DL Chassis Assembly ...
Страница 184: ...8 4 Mechanical Parts Figure 8 3 Power Supply Installation ...
Страница 185: ...Mechanical Parts 8 5 Figure 8 4 Lower Cover Assembly ...
Страница 187: ...Mechanical Parts 8 7 Figure 8 5 Lower Cover Assembly with CKTRIG Option ...
Страница 188: ...8 8 Mechanical Parts Figure 8 6 Lower Cover ...
Страница 190: ...8 10 Mechanical Parts Figure 8 7 CKTRIG Option ...
Страница 191: ...Mechanical Parts 8 11 Figure 8 8 Rear Panel Assembly ...
Страница 193: ...Mechanical Parts 8 13 Figure 8 9 900079 Main Board Assembly ...
Страница 194: ...8 14 Mechanical Parts Figure 8 10 900079 Main Board Assembly ...
Страница 196: ...8 16 Mechanical Parts Figure 8 11 Upper Shield Assembly ...
Страница 197: ...Mechanical Parts 8 17 Figure 8 12 Front Frame Assembly ...
Страница 199: ...Mechanical Parts 8 19 Figure 8 13 Keypad Assembly ...
Страница 200: ...8 20 Mechanical Parts Figure 8 14 Fan Assembly ...
Страница 202: ...8 22 Mechanical Parts Figure 8 15 Graphic Printer Assembly ...
Страница 203: ...Mechanical Parts 8 23 Figure 8 16 Upper Cover Assembly ...
Страница 205: ...Mechanical Parts 8 25 Figure 8 17 Hard Disk Assembly ...
Страница 206: ...8 26 Mechanical Parts Figure 8 18 Centronics VGA Interface Assembly ...
Страница 207: ...Mechanical Parts 8 27 Figure 8 19 Floppy Disk Assembly ...
Страница 209: ...Mechanical Parts 8 29 Figure 8 20 LC564DL Dimensions ...
Страница 210: ...8 30 Mechanical Parts Figure 8 21 LC564DL Packaging ...