blown capacitor?
#2
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looks like a tantalum cap, that farted a death fart. The resistor to the north looks suspect as well as the one to the left of the screw head(that one minght be a cap too, C13 maybe). These things dont just happen, so id check it out really well. You also need to clean all the carbon off the board as it is conductive.
You can get the schematic from megasquirt and find out what the value of C2 is as well as the resistors.
You can get the schematic from megasquirt and find out what the value of C2 is as well as the resistors.
#4
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Tantalum capacitors do sometimes pop, though usually because they've been exposed to an over-voltage condition, or to reverse-voltage such as by being installed backwards.
The question is what else on the board was damaged by whatever instigating event caused the cap to pop. Sadly, I can't answer that, or even point you to where you can buy an equivalent replacement part, as DIYAutoTune (developers of the DIYPnP) refuse to publish the schematics for the board.
#5
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Isopropyl alcohol from the drugstore (places like CVS, Walgreens and Duane Reade will always have 90% pure or better near the pharmacy counter), and small, stiff-bristled paint brushes.
Tantalum capacitors do sometimes pop, though usually because they've been exposed to an over-voltage condition, or to reverse-voltage such as by being installed backwards.
The question is what else on the board was damaged by whatever instigating event caused the cap to pop. Sadly, I can't answer that, or even point you to where you can buy an equivalent replacement part, as DIYAutoTune (developers of the DIYPnP) refuse to publish the schematics for the board.
Tantalum capacitors do sometimes pop, though usually because they've been exposed to an over-voltage condition, or to reverse-voltage such as by being installed backwards.
The question is what else on the board was damaged by whatever instigating event caused the cap to pop. Sadly, I can't answer that, or even point you to where you can buy an equivalent replacement part, as DIYAutoTune (developers of the DIYPnP) refuse to publish the schematics for the board.
#6
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Based on this c2 is part of the 5v supply, and i would guess c2 and 1 are filter caps, and are probably in parallel and the same value. Can you read any of the data on c1?
![](https://www.diyautotune.com/wp-content/uploads/v15top_sections.jpg)
Id guess it was installed backwards or someone put 12v on the output of vref.
And Joe is right, no schematics for pnp, i did not know that.
You can use qtips to clean the board too, but an acid brush kicks *** to get underneath all the component leads, etc
![](https://www.diyautotune.com/wp-content/uploads/v15top_sections.jpg)
Id guess it was installed backwards or someone put 12v on the output of vref.
And Joe is right, no schematics for pnp, i did not know that.
You can use qtips to clean the board too, but an acid brush kicks *** to get underneath all the component leads, etc
#7
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Based on this c2 is part of the 5v supply, and i would guess c2 and 1 are filter caps, and are probably in parallel and the same value. Can you read any of the data on c1?
Id guess it was installed backwards or someone put 12v on the output of vref.
And Joe is right, no schematics for pnp, i did not know that.
You can use qtips to clean the board too, but an acid brush kicks *** to get underneath all the component leads, etc
Id guess it was installed backwards or someone put 12v on the output of vref.
And Joe is right, no schematics for pnp, i did not know that.
You can use qtips to clean the board too, but an acid brush kicks *** to get underneath all the component leads, etc
#15
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^ Those aren't even close to the rating reverant specified.
Go here instead: EEU-FC1V330 Panasonic Electronic Components | Capacitors | DigiKey
Go here instead: EEU-FC1V330 Panasonic Electronic Components | Capacitors | DigiKey
#16
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What do ya mean? It was 35V, I was half right ![rofl](https://www.miataturbo.net/images/smilies/rofl1.gif)
Was on my phone and must have fat fingered the wrong one, my bad
They dont seem to come in less than 10s on ebay much.
10 x 33uF 35V 85 Deg Radial Electrolytic Capacitor Fast Shipping | eBay
![rofl](https://www.miataturbo.net/images/smilies/rofl1.gif)
Was on my phone and must have fat fingered the wrong one, my bad
They dont seem to come in less than 10s on ebay much.
10 x 33uF 35V 85 Deg Radial Electrolytic Capacitor Fast Shipping | eBay
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