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TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
Table 5-9.
318 PARALLEL DATA TEST CONDITION AND EXPECTATIONS
Condition
1
2
3
4
5
6
Test Waveform
Figure
CLK
EXT
↑
EXT
↑
EXT
↑
EXT
↓
EXT
↓
EXT
↓
QUALIFIERS A
OFF
CLK-H
CLK-H
OFF
TRG-L
TRG-L
B
OFF
TRG-L
TRG-H
OFF
CLK-L
CLK-H
EXPECTED
00
**
FF
00
00
**
DATA
FF
**
FF
FF
00
**
00
**
FF
00
00
**
FF
**
FF
FF
00
**
NOTE
The ** means the 318 acquires data without triggering. Press the STOP key to stop
data acquisition.
22. Switch the P6451 probes connected to the Parallel Data inputs A and B. All of the leads from Pod B
and the Qualifier lead from Pod A should now be connected to the test fixture.
23. Select the SETUP menu and set GROUP G1 = B7-BO.
24. Swap the Qualifier values for A and B in Table 5-9 and repeat steps 11 through 21.
25. Return the #1 pulse generator’s OUTPUT to COMPLEMENT.
26. Adjust the DD501 events level slowly until the channel 2 waveform’s falling edge crosses the channel 1 waveform’s
rising edge at 0 V (mid-screen). See Figure 5-29 (14 ns setup, 0 ns hold).
27. Change the 318 settings as follows:
SETUP MENU
ACQ. MODE
REPEAT ACQ
TRIGGER MENU
CLK =
EXT
↑
POSITION
DELAY 00246
EVENTS
00001 * WA THEN:WB THEN:WC
WA = 00
WB = FF
WC = 00
QUALIFIERS (Pod)
A
OFF
B
OFF
28. Press the DATA key until State Table is displayed and then press the START key.
29. Check for the following data and proper trigger location. It may be necessary to scroll through the display.
REV AUG 1984
5-51
Содержание 318
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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 ...