TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
(cont.)
Equipment Required
Tektronix Equivalent
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
4 Flying Lead set 5 in. (short leads)
012-0987-00
Refer to Figures 5-59, 5-60, and 5-61.
1.
Connect a 50
Ω
terminator to the OUTPUT of the #1 pulse generator. Connect a BNC T-connector to the 50
Ω
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 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
Ω
terminator. Connect the other side of the Digital Delay’s BNC T-connector to the Digital Delay’s START INPUT (see
Figure 5-59). 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 leads from Pods B, C, and D to the Test Fixture, and then
connect the Test Fixture to the #2 pulse generator’s OUTPUT. Make sure each P6451 probe GND lead is
connected to the Test Fixture ground pins (those pins nearest the BNC connector are ground).
6.
Set the #1 pulse generator’s Range Switches to 10 ns PERIOD and 5 ns DURATION.
7.
Set the Digital Delay’s EVENTS DELAY COUNT to 00001 and adjust EVENTS and START LEVELS until triggered.
8.
Connect oscilloscope channel 2 to the #2 pulse generator’s OUTPUT using a 10X probe and the probe tip connector
on the Test Fixture.
9.
Power up and set up the 338 as shown:
SETUP MENU
PLR
GROUP
G1
ON =
AAAAAAAA
76543210
G2
OFF
G3
OFF
G4
OFF
THRESHOLD MENU
LEVEL
V1 =
+10.0V
V2 =
-10.0V
5-103
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 ...
Page 532: ...TM 11 6625 3145 14 ...
Page 536: ...TM 11 6625 3145 14 ...
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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 ...