Maintenance
R&S
®
TS-PWA3
48
User Manual 1157.8143.12 ─ 17
Risk of electrostatic discharge (ESD)
Electrostatic discharge (ESD) can cause damage to the electronic components of the
instrument and the device under test (DUT). ESD is most likely to occur when you con-
nect or disconnect a DUT or test fixture to the instrument's test ports.
To prevent ESD, use a wrist strap and cord and connect yourself to the ground, or use
a conductive floor mat and heel strap combination.
6.3
Fuse Replacement
The power supply to the R&S TS-PWA3 is protected by fuses. These are located in the
built-in plug at the rear of the R&S TS-PWA3.
Figure 6-1: R&S TS-PWA3 Rear View
1 = Built-in plug with fuses (2 x IEC 127-T6.3H/250V)
A blown fuse is replaced as follows:
1. Power off the R&S TS-PWA3.
2. Isolate the R&S TS-PWA3 from the power supply (built-in plug).
3. Remove the fuseholder from the built-in plug.
4. Replace the blown fuses.
You should identify the cause of the problem and rectify it before replacing the fuse.
You may be able to tell a blown fuse just by looking at it. In case of doubt, test the fuse
with a multimeter.
Fuse Replacement
