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Mark Levinson 533H Amp fuse information

Have a ML 533H amp. It's about 4 years old. The fuse ( I assume its the fuse) in the right channel blew about a month ago after a power surge from my utility. Yep had amp plugged into Tripp Lite surge suppressor; Surge suppressor was toast after the event. Used center and left channels for stereo playback until I had the time to investigate/replace fuse.

Yesterday tried to play some tunes and nothing from the amp. Power LED was on.  Preamp was working fine.

Question: I would like to order replacement fuses for the 533H before I take the cover off. Anybody know the fuse info: brand type, amperage, etc.  Would prefer to replace factory fuses with the same model. Not really interested in "audiophile" fuse replacements.

What's the difficulty in replacing the fuses? I do have electronics experience.
daisydog
jea48
4,425 posts
 
Have a ML 533H amp. It’s about 4 years old. The fuse ( I assume its the fuse) in the right channel blew about a month ago after a power surge from my utility. Yep had amp plugged into Tripp Lite surge suppressor; Surge suppressor was toast after the event.
Define surge.

No surge protector device (SPD) will protect from a power company’s over voltage event. SPD’s are designed to protect from a voltage transient that lasts only a few milliseconds. A good SPD will respond in one nano second or less to a voltage transient.

As a rule a fuse will not blow open from a voltage transient or from an overvoltage event. What blows the fuse is the damage to the circuitry that may have been caused from the voltage transient or overvoltage event.

Overvoltage.
https://en.wikipedia.org/wiki/Overvoltage
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rauliruegas
13,060 posts
 
Dear @daisydog : " I would like to order replacement fuses for the 533H before I take the cover off. Anybody know the fuse info:..."

that makes no sense to me because the easy way to know the information is just that: open the amp, which the problem with? anyway you can’t use it rigth now.

If you insist not open then put in comunication directly with Levinson and exolain it the overall " problem ", no big deal.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.
gs5556
1,234 posts
 
May not be a fuse, could be the input coupling cap fried and there’s an open circuit.

 Even if it the fuse, send it in for service. You never can tell what else can be the problem and you want to make sure no safety caps were damaged, which could lead to a much bigger expense in repairs.
jetter
3,033 posts
 
Never had this happen, but I did work for a power company.  Did you ask your utility to pay for the amp repair?  Were any of your or other customer appliances toasted?
lucidear
88 posts
 
I have a picture of the internal board for the 532h showing the fuses and jumpers. (It should be similar to 533h, perhaps different fuse values though)
had previously contacted levinson about these but they wouldn't give'em out, I saw the photo from a seller on ebay and downloaded it...
if you want send me a pm with your email, and I'll send them to you.
whereabouts are you located?
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