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(Topic ID: 71965)

Tech help: Blown Capacitor?

By angus

10 years ago



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  • 6 posts
  • 4 Pinsiders participating
  • Latest reply 10 years ago by angus
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#1 10 years ago
OP
 
DAJ

angus

Pinside member

US Highlands Ranch, CO

11y 65,900 578 34

My wild fyre sound stopped working. Does this look like a blown capacitor? It feels like hot glue. Not sure why it would be on the sound board.

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#2 10 years ago
 
GPE

G-P-E

GPE

US Omaha, NE

13y 76,800 2,778 4

Hot melt glue.
Often used on taller caps to keep them from breaking off due to vibrations.

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#3 10 years ago
 
???

nate1981s

Pinside member

US Milford, MA

10y 36,900 416 3

yes that is glue. They do that for the big caps so over time they do not get loose or get crack solder joints. Most large Caps are filter caps so probably not the problem. Only way to test is with a ESR meter. Look for raised heads on the smaller caps or leaking (usually brownish) liquid from the other CAPS.

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#4 10 years ago
 
AMS

barakandl

nvram.weebly.com

12y 132K 10,413

First step would be to check connectors and the test point voltages. See below.

http://www.techdose.com/projects/Stern-Pinball-SB100-Sound-Board/346/page4.html

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#5 10 years ago
OP
 
DAJ

angus

Pinside member

US Highlands Ranch, CO

11y 65,900 578 34

I'd already checked all the voltages. They are all spot on. I'm working on checking the connectors now.

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#6 10 years ago
OP
 
DAJ

angus

Pinside member

US Highlands Ranch, CO

11y 65,900 578 34

The connectors are flaky, as wiggling them gets the sound going. Will reflow them and see if that cleans it all up.

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