Chief Delphi - pic: Someone tell me what THIS is!

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Extra Discussion (http://www.chiefdelphi.com/forums/forumdisplay.php?f=68)

- - pic: Someone tell me what THIS is! (http://www.chiefdelphi.com/forums/showthread.php?t=124994)

jwallace15

20-01-2014 21:59

pic: Someone tell me what THIS is!

loading photo ...

mman1506

20-01-2014 21:59

Re: pic: Someone tell me what THIS is!

Its a talon with a blown transistor

geomapguy

20-01-2014 22:00

Re: pic: Someone tell me what THIS is!

Pretty sure that's a Talon that has been burned out...

Chadfrom308

20-01-2014 22:06

Re: pic: Someone tell me what THIS is!

It looks like a talon, I've seen the how its made on them

cgmv123

20-01-2014 22:20

Re: pic: Someone tell me what THIS is!

Quote:

Originally Posted by mman1506 (Post 1330012)

Its a talon with a blown transistor

Quote:

Originally Posted by geomapguy (Post 1330013)

Pretty sure that's a Talon that has been burned out...

I didn't know that was possible... :D

Brian C

20-01-2014 22:31

Re: pic: Someone tell me what THIS is!

Talon Flambe'

It's what's for dinner....................

EricH

20-01-2014 22:33

Re: pic: Someone tell me what THIS is!

Something tells me that the red leads and the black leads went into the wrong spots--the screws are all out of position...

bhumudar

20-01-2014 23:15

Re: pic: Someone tell me what THIS is!

Talon with a blown capacitor. You probably switched the input wires by mistake...

Dale(294engr]

21-01-2014 00:13

Re: pic: Someone tell me what THIS is!

Quote:

Originally Posted by mman1506 (Post 1330012)

Its a talon with a blown transistor

I agree.. Q12 leads (4) appear to have experienced high heat surge i.e. they are discolored.
& is likely one of the 4 bridge FETs (H-bridge power switch between input power & motor load)

often the result of a drain-source overvoltage spike "punch thru" which puts the battery across the switch without current limiting.. strange thing is 2nd FET does not appeared to have the same damage - as one is tied to +12 other to ground return (-)

The big cap looks fine.. debris on it appears to be adhesive or pealed conformal coating

Chadfrom308

21-01-2014 10:12

Re: pic: Someone tell me what THIS is!

Talons have diodes or something on their input leads to protect from people switching the two

Alan Anderson

21-01-2014 11:06

Re: pic: Someone tell me what THIS is!

Quote:

Originally Posted by Chadfrom308 (Post 1330199)

Talons have diodes or something on their input leads to protect from people switching the two

I do not believe that is the case.

Tungrus

21-01-2014 11:24

Re: pic: Someone tell me what THIS is!

Its a talon with busted electrolytic capacitor, the ash/grey dry powdery stuff is the leaked and dried liquid.

Gdeaver

21-01-2014 12:13

Re: pic: Someone tell me what THIS is!

That is thermal compound. The cap touches the heat sink.

tr6scott

21-01-2014 12:26

Re: pic: Someone tell me what THIS is!

Quote:

Originally Posted by Alan Anderson (Post 1330215)

I do not believe that is the case.

I can confirm that is not the case!

Been, there, done, that, have the magic smoke and a conversation with Mike Copioli, along with some hush money to get a replacement. No freshmen were harmed during the thermal event, or after I realized what they did. . .

Ether

22-01-2014 09:25

Re: pic: Someone tell me what THIS is!

Quote:

Originally Posted by Chadfrom308 (Post 1330199)

Talons have diodes or something on their input leads to protect from people switching the two

RTM. Top of Page4. Large WARNING box with bright yellow warning triangle.

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