TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
19.
Set #1 pulse generator’s OUTPUT to COMPLEMENT.
20.
Adjust DD501 EVENTS LEVEL until the channel 2 waveform’s falling edge crosses the channel 1 waveform’s falling
edge at 0 V (mid-screen). See Figure 5-61 (20 ns setup, 0 ns hold).
21.
Change the 318 CLK and QUALIFIERS for conditions 5 through 8 in Table 5-22. Repeat steps 14 through 16 for
each condition.
Table 5-20
338 PARALLEL DATA TEST OSCILLOSCOPE SETUP
Controls
Settings
TIME/DIV
5 nS (Use 10X magnifier if necessary)
TRIGGERING
AUTO, AC, INT, CH1 only
DISPLAY MODE
ALT
VOLTS/DIV
CH1
100 mV DC
CH2
100 mV DC
POSITION
CH1
0 V (GND) set to the middle of screen
CH2
0 V (GND) set to the middle of screen
Table 5-21
338 PARALLEL DATA PULSE GENERATOR SETUP
Pulse Generator #1
Pulse Generator #2
BACK TERM
PULL (out)
PULL (out)
OUTPUT
NORM
NORM
HIGH LEVEL
+0.35 V
+0.25 V
LOW LEVEL
-0.35 V
-0.25 V
PERIOD
50 nS @ 0 V level
EXT TRIG
DURATION
15 nS @ 0 V level
20 nS + pulse @ 0 V level
5-105
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 ...
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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 ...
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