TM 11-6625-3145-14
Section 5-318/338 Service
VERIFICATION AND ADJUSTMENT PROCEDURES
INTRODUCTION
This section of the manual contains three main parts:
• Functional check procedures
• Adjustment procedures
• Performance check procedures
These procedures, along with the test setup information at the beginning of this section, allows a qualified technician to
adjust and verify the operation of the 318/338 and 318S1/338S1 Logic Analyzers.
NOTE
Throughout this manual the term verification is used to mean either a functional
check or a performance check.
Functional Check Procedures. These tests verify that the device undergoing the functional test is basically operational.
The procedure exercises the main user interfaces of the device to verify their operation and checks the main internal
features. These tests can be used to determine whether adjustment and/or repair is necessary.
Adjustment Procedures. These instructions for setting variables should bring the device being adjusted whithin product
specifications. If the instrument can not meet the specifications given in this manual after adjustment, repair is necessary.
Performance Check Procedures. These tests provide a detailed check of internal and external product characteristics.
All specifications listed in the performance requirements column of the specifications are verified. These checks can be
extensive and time consuming. Under normal circumstances, the functional check procedure provides an adequate test of
product performance in a less-costly or less time-consuming manner.
318/338 MULTI-PROBE TEST FIXTURE
We recommend that you construct the following test fixture to assist in checking the performance of the 318/338.
The 318/338 multi-probe test fixture functions as a BNC-to-square pin adapter with 50 ohm termination. Its purpose is to
connect multiple 318/338 probe leads to a single pulse generator output without causing excessive capacitive and
inductive loading. It also provides a connection for the test oscilloscope's 10X probe used in monitoring the pulse
generator's output.
NOTE
The lead distance from the ground pins to the BNC connector body is critical; keep
this distance as short as possible. Any excessive lead length in the fixture will
distort high-speed signals. Also, use only short comb lead sets when connecting
this fixture to the P6451 probe.
5-1
Summary of Contents for 318
Page 119: ...318 VERIFICATION AND ADJUSTMENT PROCEDURES ...
Page 182: ...338 VERIFICATION AND ADJUSTMENT PROCEDURES ...
Page 253: ...318 ___________________ TROUBLESHOOTING TREES ...
Page 344: ...338 TROUBLESHOOTING TREES ...
Page 517: ...TM 11 6625 3145 14 318 338 4434 923 318 Block Diagram ...
Page 518: ...TM 11 6625 3145 14 318 338 4434 924 338 Block Diagram ...
Page 519: ...TM 11 6625 3145 14 318 338 4434 925 318 Acquisition Module Wiring Diagram ...
Page 520: ...TM 11 6625 3145 14 318 338 4434 926 318 338 Mainframe Wiring Diagram ...
Page 521: ...TM 11 6625 3145 14 318 338 4434 926 338 Acquisition Module Wiring Diagram ...
Page 522: ...TM 11 6625 3145 14 318 338 4434 928 Figure 9 1 318 A01 Input A Board Component Locations ...
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Page 528: ...TM 11 6625 3145 14 Figure 9 3 318 338 A03 ACQ Control Board Component Locations ...
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Page 542: ...TM 11 6625 3145 14 Figure 9 8 318 338 A10 CRT Board Component Locations ...
Page 544: ...TM 11 6625 3145 14 Figure 9 9 318 338 A11 Inverter Board component Locations ...
Page 546: ...TM 11 6625 3145 14 Figure 9 10 318 338 A12 Regulator Board Component Locations ...
Page 551: ...TM 11 6625 3145 14 Figure 9 12 338 A01 Input A Board Component Locations ...
Page 553: ...TM 11 6625 3145 14 318 338 SERVICE ...
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Page 555: ...PIN 058584 ...