system failure
#1 system failure
oh waily waily...
yesterday I had an upset whereby the right channel on my music room set up started to sound like sandpaper....
this was pi into usb dac into tpa3116 class d into mark audio monitors
I switched everything off and replaced the pi and dac with a zen micro player
everything sounded good but I only listened for 5 minutes and switched everything off thinking Pi or dac had failed
this afternoon connected pi and dac back in and everything sounded ok....for about an hour..and then the sandpaper came back
mmmmm...trixy...
took the tweeter out of the right hand speaker...still sandpaper from the markaudio
took the markaudio out of the right hand speaker...still sandpaper from the tweeter
took the tpa3116 class d out and put the 2A3 in....bliss
so far so good after 1 hour, so it looks like I have a dead tpa3116 classd
I know I'm wasting my time but I've got the tpa3116 on the bench with the sig gen and scope....we'll see! I'm a bit dissappointed if this proves to be the culprit cos this was the best class d I've had, and it was ace with the electrostatics.
oh waily waily
yesterday I had an upset whereby the right channel on my music room set up started to sound like sandpaper....
this was pi into usb dac into tpa3116 class d into mark audio monitors
I switched everything off and replaced the pi and dac with a zen micro player
everything sounded good but I only listened for 5 minutes and switched everything off thinking Pi or dac had failed
this afternoon connected pi and dac back in and everything sounded ok....for about an hour..and then the sandpaper came back
mmmmm...trixy...
took the tweeter out of the right hand speaker...still sandpaper from the markaudio
took the markaudio out of the right hand speaker...still sandpaper from the tweeter
took the tpa3116 class d out and put the 2A3 in....bliss
so far so good after 1 hour, so it looks like I have a dead tpa3116 classd
I know I'm wasting my time but I've got the tpa3116 on the bench with the sig gen and scope....we'll see! I'm a bit dissappointed if this proves to be the culprit cos this was the best class d I've had, and it was ace with the electrostatics.
oh waily waily
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- pre65
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#2 Re: system failure
That's odd, cos the TPA3116 amp I used with my ESL57s (when I had them) would keep cutting out.
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
#3 Re: system failure
ha!
here we are with the volume knob at 10 o'clock
and here we are with the volume knob at 11 o'clock
I think we have a problem!
here we are with the volume knob at 10 o'clock
and here we are with the volume knob at 11 o'clock
I think we have a problem!
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- IslandPink
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#4 Re: system failure
Ha ! I bet my chip amp goes to eleven !
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- The Stratmangler
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#5 Re: system failure
I thought 11 was supposed to give that push over the edge?
It's wot Nigel said
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#7 Re: system failure
Excellent ..
"No matter how fast light travels it finds that the darkness has always got there first, and is waiting for it."
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#8 Re: system failure
It am fooked ..
But seriously, seems like a thermal thing going wrong to me, if it takes an hour to show up. Could be a chip going down.
"No matter how fast light travels it finds that the darkness has always got there first, and is waiting for it."
#9 Re: system failure
there are no chips inside these things unless you consider the tpa3116 itself. It's just the tpa/tda3116 chip plus lots of chokes and lots of capacitors.. that's it!
anyway there was room in the bin for it.
I see there are still some originals available at £18. It has the orange/yellow board with 15 large caps and a number of smd caps which was deemed the best of the variations back in the day. It has the necessary mute/power switch which is a must if you're using it with electrostatics.
If the new one lasts as long as the old one(5 years) then I don't suppose I'll complain at £18....It really was shockingly good sq for the money.
anyway there was room in the bin for it.
I see there are still some originals available at £18. It has the orange/yellow board with 15 large caps and a number of smd caps which was deemed the best of the variations back in the day. It has the necessary mute/power switch which is a must if you're using it with electrostatics.
If the new one lasts as long as the old one(5 years) then I don't suppose I'll complain at £18....It really was shockingly good sq for the money.
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- Dave the bass
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#10 Re: system failure
^^^^
Seeing that again, the attention to detail, superb. Stonehenge. Smell the glove. Drum(mer) on fire, its got the lot.
"The fat bourgeois and his doppelganger"
#11 Re: system failure
Bet you willthen I don't suppose I'll complain at £18
Whenever an honest man discovers that he's mistaken, he will either cease to be mistaken or he will cease to be honest.
#12 Re: system failure
I may be a bit slow but I'd like to see some indication of a bizarre gardening accident.Seeing that again, the attention to detail, superb. Stonehenge. Smell the glove. Drum(mer) on fire, its got the lot.
Oi!..bah humbug!!Bet you will
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#13 Re: system failure
Ooh, well spotted - even better !Dave the bass wrote: ↑Mon Dec 09, 2019 8:07 pm ^^^^
Seeing that again, the attention to detail, superb. Stonehenge. Smell the glove. Drum(mer) on fire, its got the lot.
"Once you find out ... the Circumstances ; then you can go out"
#14 Re: system failure
Good innit?