So we lost power on this bad boy, checked the fuse and it was bad.  Pulled the chassis the two 6amp fuses were also blown.

No resistors on the board look back, did take my meter and test several.   Anyone have any similar experiences?


Thanks

Been away for a bit but to try and answer a few questions.

1) There is no other cabinet involved with this amp which would lead us to assume that we are dropping the impedance.

2) The amp is still functional it just as noted in other posts fartsquirts out.

3) Turn back on in 10 second and we're good for while then she farts again.

My question is whether or not the PT is shorted out?

Is there a cap that needs replacing?

Hi Guys - So I replaced the output chip ( LM3876T), fired it up........played for 5 minutes...and same thing POWER DROP out.   

Tony - I'll check what it is when I pull it and replace appropriately



Thanks!

Tony - in another forum a member noted that the Part Number is LM3876T and that when he swapped it, the problem went away.  But you think it could possibley be a LM3886?

And yes it appears to be cardboard from factory, to maybe protect against grounding out?


Thanks
B

The amp still operates outside of the cabinet, even with the "cooler temp" out of the cabinet it still shuts down.  As far as a (thermal cutout) the design didn't include one in the layout of the amp (poor oversight).

Hi Guys, thanks for the questions.  The amp does not power off after 15 minutes (all lights are still on) but the amp "farts" and then output stops.  Then if I turn off the power switch off/on it powers back up. 

Take a look at some pics i've attached

I've got a Trademark 60 that sounds amazing!!!  However after 15 minutes she shuts down.

1) Caps?
2) OP Amps?
3) Cold Solder joints?
4) OT?

Any one who can point me in the right direction would be awarded with two thumbs up :dbtu: