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TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
TEST 2.
Parallel Data Acquisition Word Recognition and Trigger Sequencer Check with External Clock
Minimum Period.
Equipment Required
Tektronix
Equivalent
1 Oscilloscope
7904 with 7A26
and 7B80 plug-
in modules
2 Oscilloscope Probes 10X
P6106
2 Pulse Generators
PG 502
1 Digital Delay
DD 501
4 BNC 50
Ω
terminators
011-0049-01
3 BNC T-Connectors
103-0030-00
3 BNC male-to-Probe-tip Adapters
013-0084-02
3 BNC elbow male-to-female adapters
103-0031-00
1 BNC female-to-female adapter
103-0038-00
1 BNC male-to-male adapter
103-0029-00
1 BNC 50
Ω
Cable 18 inches long
012-0076-00
1 BNC 50
Ω
Cable 42 inches long
012-0057-01
1 Test Fixture.
2 Flying Lead set 5 in. (short leads)
012-0987-00
1.
Connect a 50 Q terminator to the #1 pulse generator’s OUTPUT. Connect a BNC T-connector to the 50 Qt terminator.
Connect the P6107 EXT CLOCK probe tip to one side of the BNC T-connector.
2.
Connect the oscilloscope channel 1 10X probe tip to the other side of the BNC T-connector.
3.
Connect a BNC elbow to the Digital Delay’s EVENTS INPUT. Connect a BNC T-connector to the elbow. Connect one
side of the T-connector to the #1 pulse generator’s + TRIG OUT using an 18 inch BNC cable and a 50 Q terminator.
Connect the other side of the Digital Delay’s BNC T-connector to the Digital Delay’s START INPUT (see Figure 5-28).
Using 2 BNC elbows and a BNC female-to-female connector will help here.
4.
Connect the Digital Delay DLY’D TRIG OUT to the #2 pulse generator’s +TRIG/DURATION INPUT using a 42 inch
BNC cable
5. Connect all the leads from Pod A, and the Qualifier lead from Pod B, to the Test Fixture; then connect the Test Fixture
to the #2 pulse generator’s OUTPUT. Make sure that the P6451 probe GND leads are connected to the Test Fixture
ground pins (those pins nearest the BNC connector are ground).
5-47
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 ...
Page 526: ...TM 11 6625 3145 14 ...
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 ...
Page 554: ......
Page 555: ...PIN 058584 ...