8719ET/20ET/22ET
8719ES/20ES/22ES
RF Network Analyzers
Measure the Post Regulator (A8) Voltages
Measure the DC voltages on the test points of A8 with a voltmeter. Refer to
test point locations, and
Figure 5-3 Post Regulator (A8) Test Point Locations
Table 5-1 Post Regulator (A8) Test Point Voltages
TP
Supply
1
+65 V (Not Used)
2
AGND
3
+5 VD
4
SDIS
−15 V
5
−12.6 PP (Not Used)
6
7
+15 V
8
+5 VU
−5.2 V
9
10
+22V
11
+6 V
Service Guide
Table 5-1
for supply voltages and limits.
Range
+64.6 to +65.4
n/a
+4.9 to +5.3
n/a
−14.4 to −15.6
−12.1 to −12.8
+14.5 to +15.5
+5.05 to +5.35
−5.0 to −5.4
+21.3 to +22.7
+5.8 to +6.2
Power Supply Troubleshooting
Start Here
Figure 5-3
for
5- 7