isweek M9803R - Replacing the Power Fuse

4. Removetheblownfuse.replace with fuseoft hesamesizeandrating.Make surethenewfuse is
centeredinthefuseholder.
5. Replacetheblownfusewithsameratings. 
6. The A inputterminalisprotectedbyaF20A/250Vfastblow ceramic fuse,Φ6
×32mm.ThemA input
terminalisprotectedbyaF500mA/250Vfastblowfuse,Φ5
×20mm.
7.  Fuserarelyneedreplacementandblowalmost alwaysasaresultoftheoperator?serror.
8.  Neverusethebenchmultimeterunlesshtefusecoverisinplaceandfastenedfully.
ReplacingthePowerFuse
WARNING
To avoid electrical shock, Disconnect power cable from live power
sourcebeforereplacingthepowerfuse,andthetestleadsandanyinput
signalsbeforereplacingthepowerfuses.Replaceonlywithsametypeof
fuses.
Usethefollowingproceduretoexamineorreplacethepowerfuses:
1.  Turnthepowerswitchtooff,andremovethepowercablefromlivepowersource.
2. Disconnecttestleadsfromanyli ve source,turntherotaryswitch tooff,andremovethetest leads
fromtheinputterminals.
4-3