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TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
5. Set the pulse generator as follows:
Termination BACK
TERM
(pull switch out)
Period
0.1
µ
s
Duration
10 ns (5 ns X 2)
High level
+0.35 V
Low level
-0.35 V
6. Select the A timebase and place the rising edge of the channel 1 waveform on the center graticule on the
oscilloscope screen.
7. Select the B timebase.
8. Turn DELAY TIME of the A timebase to place the rising edge of the channel 1 waveform on the center graticule.
B. Strap adjustment with Extender boards (Optional Maintenance Kit Required)
1. Turn off the 318.
2. Remove the A03 ACQ CONTROL board and the A04 ACQ MEMORY board using the Board ejectors.
3. Install Extender boards into the J03 and J04 connectors.
4. Mount the A03 ACQ CONTROL board and the A04 ACQ MEMORY board on the top of the Extender boards.
5. Turn on the 318.
6. Select the Threshold menu and set INPUT EXT CLK = V3 (0.00 V).
7. Set CLK to EXTT.
8. Select the Trigger menu and set the Events field to: 00000*WA OFF:WB OFF:WC. This will cause the 318 to
acquire data without triggering.
9. Press the START key.
10. Repeat the following procedures, (11) through (13), to adjust each clock delay with Extender boards shown in
11. Connect the oscilloscope channel 2 probe tip to the corresponding test point given in Table 5-5.
12. Turn
∆
-TIME clockwise to display the clock delay value listed in Table 5-5.
13. Adjust the corresponding jumper to place the rising or falling edge (indicated by
↑
or
↓
in Table 5-5) of the channel
2 waveform within one graticule division of the rising edge of the channel 1 waveform.
14. Press the STOP key.
15. Turn off the 318.
16. Dismount the A03 ACQ CONTROL board and the A04 ACQ MEMORY board from the Extender boards.
17. Remove the Extender boards from slots A03 and A04.
18. Install the A03 ACQ CONTROL board and the A04 ACQ MEMORY board into slots A03 and A04 respectively.
19. Turn on the 318.
5-36
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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 ...
Страница 536: ...TM 11 6625 3145 14 ...
Страница 538: ...TM 11 6625 3145 14 ...
Страница 539: ...TM 11 6625 3145 14 ...
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 ...