Should I be concerned.....

[andyrlb]

I noticed this in one of my perfectly working amps , is it glue that has corroded the shiny thing ( heat sink ? )
Should I change it ?

https://uploads.tapatalk-cdn.com/20200615/24c75405818a8effe3e638243ec3c842.jpg


Sent from my iPhone using Tapatalk

[mikeyb]

Strangely enough I saw corrosive glue mentioned in a refurb on a Sansui amp that I read yesterday, guy said to remove and replace.

Ok this was on the case itself but might be the same if used internally.

[andyrlb]

It’s not my amp at all it turns out [emoji35]
Sorry!! Please delete mods with apologies


Sent from my iPhone using Tapatalk

[andyrlb]

What happened is ... I had sent pictures of the internals of my amp , my mate then said they have issues and pointed out that corrosion to me which I thought was from the pictures that I sent him ffs I could slap him .
Here is the component in my amp ...https://uploads.tapatalk-cdn.com/20200615/7d8ac69780445ea4dacd58e548a3388f.jpg
Just glue .... phew [emoji28]


Sent from my iPhone using Tapatalk

[reddish75]

A Marantz pm4 if I'm correct? I find the glue turns corrosive over the years, check that it's not touching any other components.

That black square looking thing in the middle of the photo looks like a black flag capacitor, they have a very high failure rate.