TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
Test 4 - Start Output and Trigger Output
Test 5 - External Trigger Input
Test 6 - Serial State Analyzer 338S1
TEST 1 - THRESHOLD VOLTAGES
Equipment Required
Tektronix Equivalent
1 Oscilloscope
7904 with 7A26 and
7B80 plug-in modules
2 Oscilloscope Probes 10OX
P6106
1 Pulse Generator
PG502
1 Digital Multimeter (DMM)
DM502
1 Regulated DC Power Supply
PS501
1 BNC T-Connector
103-0030-00
2 BNC male-to-Probe-Tip Adapters
013-0084-02
1 BNC 50
Ω
Cable, 18 inches long
012-0076-00
1 BNC 50
Ω
Cable, 42 inches long
012-0057-01
2 Flying Lead Sets, 5 in. (short leads)
012-0987-00
1 Test Fixture
1 BNC Female-to-Dual-Banana Adapter
103-0090-00
SETUP
1. Connect a BNC T-connector to the pulse generator OUTPUT. Connect the P6107 External 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. Set the pulse generator as follows:
PERIOD
30 ms
DURATION
SQ WAVE
4. Connect the DMM minus (-) lead to the power supply reference (-) terminal and the (+) lead to the plus (+)
terminal.
5. Make sure that the DC Power Supply reference terminal is at the same potential as the 338 ground; this is to
prevent excessive current from passing through to the P6451 Probe ground.
6. Connect all the P6451 Probe GND leads for Pods A through D to the power supply reference (-) terminal.
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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 ...