TDS 410, TDS 420 & TDS 460 Service Manual
6Ć65
Troubleshooting
This subsection contains information and procedures designed to help you
isolate faulty modules in the oscilloscope. If a module needs to be replaced,
follow the
Removal and Installation Procedures located in this section. If
servicing a TDS 410, follow the procedures for the TDS 420, but ignore all
references to CH 3 and CH 4.
CAUTION
This oscilloscope operates over several ranges of line voltage (see
Source Voltage and Frequency
on page 1-16 of Section 1, Specifi-
cation
). Before stepping the line voltage from one range to a higher
range, set the principal power switch (rear panel) to its OFF posi-
tion. Failure to do so can damage the oscilloscope.
The oscilloscope has two levels of internal diagnostics that focus on verifying,
adjusting, and, if need be, isolating faulty modules.
Both levels of internal diagnostics report any bad modules and/or interfaces. If
they do find a bad module and/or interface, use the troubleshooting proce-
dures in this section to determine which module needs to be replaced.
The two levels of diagnostics are the short confidence set and an extended
set that tests the oscilloscope circuitry in-depth and takes more time. At
power-up, the oscilloscope automatically executes the short set. The ex-
tended set is optional and is executed by using the following procedure:
Prerequisites:
Power up the oscilloscope and allow a 20 minute warm-up
before doing this procedure.
1.
Display the System diagnostics menu:
a.
Press SHIFT; then press UTILITY.
b.
Repeatedly press the main-menu button System until Diag/Err is
highlighted in the menu that pops up.
c.
Repeatedly press the main-menu button Area until All is highlighted
in the menu that pops up.
2.
Run the System Diagnostics: Press the main-menu button Execute; then
press the side-menu button OK Confirm Run Test.
3.
Wait: The internal diagnostics do an exhaustive verification of proper
oscilloscope function. This verification will take about two minutes. When
finished, the oscilloscope displays a report of any bad modules and/or
interfaces.
Diagnostics
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Страница 9: ...Contents x ...
Страница 13: ...Contents xx ...
Страница 19: ...Safety Summary xx ...
Страница 25: ...Introduction x x ...
Страница 26: ...Specifications ...
Страница 47: ...Operating Information ...
Страница 63: ...Operating Information Operating Information 2Ć16 ...
Страница 64: ...Theory of Operation ...
Страница 68: ...Circuit Description Theory of Operation 3Ć4 ...
Страница 69: ...Performance Verification ...
Страница 81: ...Brief Procedures Performance Verification 4Ć12 ...
Страница 119: ...Performance Tests Performance Verification 4Ć50 ...
Страница 120: ...Adjustment Procedures ...
Страница 147: ...Maintenance ...
Страница 151: ...Maintenance Information Maintenance 6Ć4 ...
Страница 228: ...Troubleshooting TDS 410 TDS 420 TDS 460 Service Manual 6Ć81 J2 Pin 1 Figure 6 38 A02 Display Connector J2 ...
Страница 237: ...Troubleshooting Maintenance 6Ć90 J7 Pin 1 J8 Pin 1 J6 Pin 1 W1 Pin 1 W2 Pin 1 Figure 6 46 A01 Backplane Module ...
Страница 240: ...Options ...
Страница 249: ...Electrical Parts List ...
Страница 251: ...Replaceable Electrical Parts List Electrical Parts List 8Ć2 ...
Страница 252: ...Diagrams ...
Страница 258: ...Diagrams 9Ć6 ...
Страница 259: ...Mechanical Parts List ...
Страница 263: ...Mechanical Parts List 10Ć4 ...
Страница 272: ...TDS 410 TDS 420 TDS 460 Service Manual 10Ć13 1 2 3 4 5 6 7 8 9 10 11 6 3 Figure 10 3 Cables and Routing ...
Страница 275: ...Mechanical Parts List 10Ć16 ...