Troubleshooting
4-42
AWG7000 Series Service Manual
Checking the Power
Supply Voltages
To check the power supply voltages, power on the instrument and connect the (–)
lead of a multi-meter to chassis ground.
To measure the output voltages of the power supply, check the voltages at J104 on
the PWR board with the multi-meter and compare each reading to the values listed
in Table 4-4. If the voltages are within the allowance, your power supply is
functional.
Figure 4-20: PWR board test points
Table 4-4: Power supply voltages
PWR board (J104)
Voltage
Allowance
Pin1
+3.3 V
+3.1 V to +3.5 V
Pin 3
+5 V
+4.7 V to 5.3 V
Pin 5
+12 V
+11.4 V to +12.6 V
Pin 1
+ 3.3 V
Pin 3
+ 5V
Pin 5
+ 12 V
Multi-meter (+) lead
Содержание AWG7000 Series
Страница 4: ......
Страница 10: ...List of Tables vi AWG7000 Series Service Manual...
Страница 14: ...Service Safety Summary x AWG7000 Series Service Manual...
Страница 16: ...Environmental Considerations xii AWG7000 Series Service Manual...
Страница 18: ...Preface xiv AWG7000 Series Service Manual...
Страница 19: ...Operating Information...
Страница 20: ......
Страница 23: ...Theory of Operation...
Страница 24: ......
Страница 31: ...Adjustment Procedures...
Страница 32: ......
Страница 51: ...Maintenance...
Страница 52: ......
Страница 58: ...Maintenance 4 6 AWG7000 Series Service Manual...
Страница 109: ...Replaceable Parts...
Страница 110: ......
Страница 125: ...Replaceable Parts AWG7000 Series Service Manual 5 15 Figure 5 7 Exploded diagram Power supply assembly 1 2 3 4 5 6 6...
Страница 137: ...Replaceable Parts AWG7000 Series Service Manual 5 27 Figure 5 14 Exploded diagram SMA bracket 1 2 3 5 4 6 8 7...
Страница 139: ...Replaceable Parts AWG7000 Series Service Manual 5 29 Figure 5 15 Exploded diagram Relay unit 11 2 7 4 5 6 3 8 10 9 1 4...