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HELP: Rotel RB 980bx fuse
HELP: Rotel RB 980bx fuse
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Old 20th December 2003, 12:10 AM   #1
lucianos is offline lucianos  Italy
diyAudio Member
Join Date: May 2003
Location: Milan
Default HELP: Rotel RB 980bx fuse


I know this is no great DIY topic, but I saw Doh already worked on the same Power Amp, so I thought you could help me.

I was listening to my just bought power amp, when the overheating protection entered. In effect its position was not very good for ventilation, so I moved it, waited for it to cool down and turned it on again but... THE LEFT CHANNEL WAS MUTE!!!
I am no more expert in electronics than my 4 years old daughter, but, before despairing, opened it and as I saw two fuses on the left side and two on the right, tried to swap them one by one.
Actually when I swapped F603 fuses, the left channel worked again and the right one shut up.
OK... it's just a fuse: the problem is: I HAVE NO IDEA WHAT FUSE I MUST BUY TO REPLACE IT!.
The fuse is tagged F4/250E.

Help, please!

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Old 20th December 2003, 12:46 PM   #2
sreten is offline sreten  United Kingdom
Join Date: Nov 2003
Location: Brighton UK
Its a 4 amp fuse - the 250 is the voltage rating.

Just take the one that works with you
when you go to buy some replacements.
There are two types quick and slow blow.
You need the fuse to get the correct type.

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Old 21st December 2003, 07:07 AM   #3
lucianos is offline lucianos  Italy
diyAudio Member
Join Date: May 2003
Location: Milan
Thank you, they're fast blow, but unfortunately they also are HCB which I could not find yesterday.
So I am spending the weekend w/o music
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