Applied Biosystems 7300 Installation And Maintenance Manual page 149

Remove each fuse from its fuse holder and
3.
inspect it for damage. Carbon typically coats the
inside of failed fuses.
Replace failed fuses with a 12.5A, 250V,
4.
5 x 20-mm fuse.
The voltage and amperage ratings are on
Note:
the fuse holder.
Replace the fuse holder into the instrument.
5.
Plug in, then power on the instrument.
6.
The installation is successful if the instrument
powers on.
Fuse failure can result from fluctuations in
Note:
the supplied power to the instrument. To prevent
further failures, consider installing an electrical
protective device (see
Notes
Applied Biosystems 7300/7500/7500 Fast Real-Time PCR System Installation and Maintenance Guide
page 9).
Appendix A
Replacing the Instrument Fuses
Good fuse
Failed fuse
Replace
123
A