So i recently got my hands on a Arcam A85 and A80
the A80 work fine (little testing)
All was good and working with the A85 (turned up loud wanted to see what it could do) till i plugged it in for some fun a week later and it had no signs of life no standby light nothing and wont turn on i did some digging and found it to be the 750mA surface mounted fuse on the PCB (i bypassed it with some tweezers) and it came back to like then i turned it off after a sec or 2.
now my big ask is do i replace it is a regular fuse or a resettable one?
non Resettable : (HERE)
resettable : (HERE)
it was in a very very damp/humid room for one night although i had my cd Player and 2 other amps and a pc in there and they were fine so idk.
the Arcam service manual only says 750mA nothing else i thinks its on a 5v or 9v psu so i guess anything above that is fine?
Side note:
the A85 tone controls also don't work if you mess with them then move the volume the tone changes like if i put -1 bass then turn up and down the volume the bass and treble will change up and down and make cracking noises.
Really appreciate any help thanks!
the A80 work fine (little testing)
All was good and working with the A85 (turned up loud wanted to see what it could do) till i plugged it in for some fun a week later and it had no signs of life no standby light nothing and wont turn on i did some digging and found it to be the 750mA surface mounted fuse on the PCB (i bypassed it with some tweezers) and it came back to like then i turned it off after a sec or 2.
now my big ask is do i replace it is a regular fuse or a resettable one?
non Resettable : (HERE)
resettable : (HERE)
it was in a very very damp/humid room for one night although i had my cd Player and 2 other amps and a pc in there and they were fine so idk.
the Arcam service manual only says 750mA nothing else i thinks its on a 5v or 9v psu so i guess anything above that is fine?
Side note:
the A85 tone controls also don't work if you mess with them then move the volume the tone changes like if i put -1 bass then turn up and down the volume the bass and treble will change up and down and make cracking noises.
Really appreciate any help thanks!
I would just get hold of the service manual and replace it with the part specified by the manufacturer. Fuses can have wildly different characteristics, even with the same ampere rating.
One performance difference between the two fuses linked above is the reaction speed.
The non-reset is a "slo-blo" or time delay fuse and the re-settable is a fast acting fuse.
The time delay fuse is designed to handle a surge current far beyond it's rating, typically at first power up.
If you replace a time delay fuse with a fast acting fuse of the same rating it will likely blow immediately or frequently.
Keep in mind that fuses usually blow for a reason, so there may be other problems with the circuit.
In this case I would not select a re-settable fuse as it may cause more damage to the circuit by re-setting if the root problem is not fixed first.
As @kramtweeter mentioned above, best to use the original as specified.
The non-reset is a "slo-blo" or time delay fuse and the re-settable is a fast acting fuse.
The time delay fuse is designed to handle a surge current far beyond it's rating, typically at first power up.
If you replace a time delay fuse with a fast acting fuse of the same rating it will likely blow immediately or frequently.
Keep in mind that fuses usually blow for a reason, so there may be other problems with the circuit.
In this case I would not select a re-settable fuse as it may cause more damage to the circuit by re-setting if the root problem is not fixed first.
As @kramtweeter mentioned above, best to use the original as specified.