HP 8112A Operating, Programming And Servicing Manual page 258
50 mhz programmable pulse generator
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- Operating, programming and servicing manual (112 pages) ,
- Operating, programming and servicing manual (406 pages)
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Width Control
Slope Control
Amplitude Control
10.5-14 Servicing the Control Board
1 . Set the HP 8 1 1 2A to RCL 0, PER 15 ms
2. Check the Width DAC output according to the following table:
Table 10.5-5. Typical Width Control DAC Output
1 . Set up the HP 81 12A as follows:
RCL
DTY
PER
TRE
2. Check the Slope DAC leading edge output according to the
following table:
Table 1 0.5·6. Typical Slope (LEE) Control DAC Output
3. Set the HP 81 12A LEE to 500µs
4. Check the Slope DAC trailing edge output according to the
following table:
Table 10.5· 7. Typical Slope (TRE) Control DAC Output
1. Set up the HP 81 1 2A as follows:
RCL
101
Output
2. Check that U18 operates according to the following table:
HP 8112A WID
Voltage at TP2
ms
1
+9.8 v
5 ms
+ l .95 v
ms
9.99
+0.98 v
0
503
lO ms
500µ s
HP 8112A LEE Voltage at TP4
µs
50
+l.65 v
µs
500
+0.16 v
µs
999
+0.08 v
HP 811 2A TRE
Voltage at TP5
µs
50
+l .65 v
µs
500
+0.16 v
µs
999
+0.08 v
0
v
-8.0
Enabled
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