TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
INPUT
EXT CLK =
V3
POD A =
V3
POD B =
V3
POD C =
V3
POD D =
V3
TRIGGER MENU
Source
INT TRIG
CLK
EXT
TRIG
IMMEDIATELY
POSN
DELAY
00249
Events
00001*WA FLW’D BY:WB OFF WC
WA =
XX
WB =
XX
WC =
GLITCH
76543210
POD A
OFF
QUALIFIERS (POD)
A OFF
B OFF
C OFF
D OFF
10.
Set the oscilloscope as shown in Table 5-20.
11.
Set the Pulse Generators as shown in Table 5-21.
NOTE
Over adjustment of the EVENTS LEVEL will cause a loss of the DD501 triggering
and oscilloscope display. If the adjustment range is not adequate then replace the
BNC cables, between the Pulse Generators and the Digital Delay, with longer or
shorter cables.
12.
Set the oscilloscope triggering source to CH2 ONLY.
13.
Adjust 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 5-60 (20 ns setup, 0 ns hold).
NOTE
Over adjustment of the EVENTS LEVEL will cause a loss of the DD501 triggering
and oscilloscope display. If the adjustment range is not adequate replace the 42
inch BNC cable, from DLY’D TRIG OUT to the #2 Pulse Generator’s + TRIG INPUT,
with a longer or shorter cable, or remove the cable’s 50
Ω
terminator.
14.
Setup the 338 CLK and QUALIFIERS for Condition 1 in Table 5-22.
15.
Press the 338 DATA key until the State Table is displayed.
16.
Press the START key.
17.
Check that the data acquired is equal to the Expected Data in Table 5-22.
18.
Setup the 338 CLK and QUALIFIERS for conditions 2 through 4 in Table 5-22. Repeat steps 14 to 16 for each
condition.
5-104
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 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 ...
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Page 555: ...PIN 058584 ...