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TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
8.
Adjust RET CLK, WE , ADRS CLK, and TRIG CLK Delay and Width
Equipment Required
1.
Oscilloscope, Tektronix 7904 with plug-in modules 7A26, 7B80, and 7B85.
1.
Pulse Generator
1.
BNC 50
Ω
termination
1.
BNC T-connector
2.
BNC male-to-Probe-tip Adapters
1.
2 SQR pin-to-Probe-tip Adapter
2.
Extender Boards
2.
Board Ejectors
Refer to Figures 5-18 and 5-20.
A. Equipment Setup
1. Install the 7B85 plug-in module into the 7904 timebase A, and install the 7B80 module into timebase B.
2. Connect a 50
Ω
terminator to the pulse generator OUTPUT. Connect a BNC T-connector to the 50
Ω
terminator.
Connect the oscilloscope channel 1 probe tip to one side of the BNC T-connector.
3. Connect the P6107 External Clock probe tip to the other side of the BNC T-connector.
4. Setup the oscilloscope as follows:
Mainframe
Horizontal Mode B
7A26
Position
Rising edge at center screen
Channel 1
VOLTS/DIV
20 mv (200 mv with 10 OX probe)
Trigger Source
CH 1
Display Mode
ALT
Position
0 v at mid screen
Channel 2
VOLTS/DIV
50 mv (500 mv with 10X probe)
Position
0 v 2.4 divisions above midscreen (-1.4 v at midscreen)
7B85
Slope
+
Triggering
Mode Coupling Source
Auto AC INT
Magnification
1X
Hold Off
at minimum
B Delay Mode
B Starts after DLY
Time/DIV
50 ns (5 ns with magnifiction)
Trace Sep
On, minimum
∆
Time
zero
7B80
slope
+
Triggering
Mode Coupling Source
Auto AC INT
Position
rising edge at center screen
Hold Off
at minimum
Time/Div
10 ns (1 ns with magnification)
5-35
Содержание 318
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Страница 182: ...338 VERIFICATION AND ADJUSTMENT PROCEDURES ...
Страница 253: ...318 ___________________ TROUBLESHOOTING TREES ...
Страница 269: ...TM 11 6625 3145 14 Maintenance Troubleshooting 318 338 Service Figure 7 7 318 Word recognizer test ...
Страница 278: ...TM 11 6625 3145 14 Maintenance Troubleshooting 31 8 338 Service Figure 7 10 318 N and DELAY counter test 7 25 ...
Страница 313: ...TM 11 6625 3145 14 Figure 7 19 Troubleshooting Tree 8 Data Acquisition ACQ A01 A02 Sheet 4 of 6 7 60 ...
Страница 344: ...338 TROUBLESHOOTING TREES ...
Страница 362: ...TM 11 6625 3145 14 Maintenance Troubleshooting 318 338 Service 4434 567 Figure 7 39 338 Word recognizer test 7 109 ...
Страница 371: ...TM 11 6625 3145 14 Maintenance Troubleshooting 318 338 Service 4434490 Figure 7 42 338 N and DELAY counter test 7 118 ...
Страница 421: ...TM 11 6625 3145 14 Maintenance Troubleshooting 318 338 Service Figure 7 55 Troubleshooting Tree 12 T H A01 A02 7 169 ...
Страница 517: ...TM 11 6625 3145 14 318 338 4434 923 318 Block Diagram ...
Страница 518: ...TM 11 6625 3145 14 318 338 4434 924 338 Block Diagram ...
Страница 519: ...TM 11 6625 3145 14 318 338 4434 925 318 Acquisition Module Wiring Diagram ...
Страница 520: ...TM 11 6625 3145 14 318 338 4434 926 318 338 Mainframe Wiring Diagram ...
Страница 521: ...TM 11 6625 3145 14 318 338 4434 926 338 Acquisition Module Wiring Diagram ...
Страница 522: ...TM 11 6625 3145 14 318 338 4434 928 Figure 9 1 318 A01 Input A Board Component Locations ...
Страница 526: ...TM 11 6625 3145 14 ...
Страница 528: ...TM 11 6625 3145 14 Figure 9 3 318 338 A03 ACQ Control Board Component Locations ...
Страница 532: ...TM 11 6625 3145 14 ...
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Страница 538: ...TM 11 6625 3145 14 ...
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Страница 540: ...TM 11 6625 3145 14 ...
Страница 541: ...TM 11 6625 3145 14 ...
Страница 542: ...TM 11 6625 3145 14 Figure 9 8 318 338 A10 CRT Board Component Locations ...
Страница 544: ...TM 11 6625 3145 14 Figure 9 9 318 338 A11 Inverter Board component Locations ...
Страница 546: ...TM 11 6625 3145 14 Figure 9 10 318 338 A12 Regulator Board Component Locations ...
Страница 548: ...TN 11 6625 3145 14 Figure 9 11 318S1 338S1 A07 Serial RS232 Non Volatile Memory Board Component Locations ...
Страница 551: ...TM 11 6625 3145 14 Figure 9 12 338 A01 Input A Board Component Locations ...
Страница 553: ...TM 11 6625 3145 14 318 338 SERVICE ...
Страница 554: ......
Страница 555: ...PIN 058584 ...