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TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
1.
Connect a 50 ohm terminator to PG502 OUTPUT.
2.
Connect a 10X probe from the oscilloscope CH1 to a BNC-to-probe-tip adapter and then to the 50 ohm terminator at
the PG502 OUTPUT.
3.
Setup the Oscilloscope as follows:
TRIGGERING
AUTO, AC, INT, CH1
TIME/DIV
5 ns (Use 10X MAGNIFIER if necessary)
CH1 VOLTS/DIV
1.0 V DC
CH1 POSITION
0 V (GND) set to the middle of screen
4.
Set the Pulse Generator as follows:
BACK TERM
OUT
OUTPUT
NORM
PERIOD
0.1
µ
s
HIGH LEVEL
+ 2.80 V
LOW LEVEL
0.00 V
DURATION
20 ns @ + 1.4 V level
5.
Remove the 10X Probe and BNC-to-probe-tip adapter from the pulse generator.
6.
Connect the BNC-to-mini-jack Cable from the 50 ohm terminator at the PG502 OUTPUT to the 318 TRIG INPUT mini-
jack. Connect the cable braid lead to the 318 GND mini-jack.
7.
Power-up and setup the 318 as follows:
TRIGGER MENU
SOURCE
EXT TRIG
EXT TRIG POL
↑
8.
Press the START key and check that the 318 triggers.
9.
Set the pulse generator Period to EXT TRIG and insure that no cables are connected to the pulse generator External
Trigger input.
10. Press the START key and then press the PG502 MAN TRIG.
11. Check that the 318 triggers only after the PG502 MAN TRIG button is pushed.
12. Set the EXT TRIG POL to negative and the PG502 OUTPUT to COMPLIMENT.
13. Repeat steps (10) and (11).
Test 6. Serial State Analyzer (318S1)
Equipment Required
1 Serial Data Generator
5-60
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 ...
Page 532: ...TM 11 6625 3145 14 ...
Page 536: ...TM 11 6625 3145 14 ...
Page 538: ...TM 11 6625 3145 14 ...
Page 539: ...TM 11 6625 3145 14 ...
Page 540: ...TM 11 6625 3145 14 ...
Page 541: ...TM 11 6625 3145 14 ...
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 ...
Page 554: ......
Page 555: ...PIN 058584 ...