Author Topic: Fried Gecko Anyone?  (Read 5928 times)

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Offline David_AVD

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Fried Gecko Anyone?
« on: March 29, 2013, 03:58:54 am »
Last week we had a Denon hi-fi amplifier come in with the fault; "smoke came out then stopped working".

Here's the cause.  He was hiding right under the main filter capacitors.  When the owner switched the amplifier on, BAM, full +/- DC rails across the little critter!

Luckily (but not for him!), the only real damage was some burnt PCB traces.  You do have to take the whole amp apart to get the main board out though.
 

Offline bitwelder

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Re: Fried Gecko Anyone?
« Reply #1 on: March 29, 2013, 06:57:12 am »
From the title I thought the subject of roasting was one of these:

Eh... R.I.P. the Reptile.
 

Offline mrflibble

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Re: Fried Gecko Anyone?
« Reply #2 on: March 29, 2013, 08:16:07 am »
Is that a bit of chunky solder mask seasoning I see on that well fried gecko?
 

Offline David_AVD

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Re: Fried Gecko Anyone?
« Reply #3 on: March 29, 2013, 08:26:22 am »
Yes, part of the solder mask did end up more attached the the Gecko than the PCB.   :)
 

Offline mrflibble

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Re: Fried Gecko Anyone?
« Reply #4 on: March 29, 2013, 08:35:41 am »
Well, that'll teach it to lick the cap leads to see if there's any charge left!
 

Offline SeanB

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Re: Fried Gecko Anyone?
« Reply #5 on: March 29, 2013, 10:46:38 am »
Not as bad as the 2 that were making out on a fence post, and his tail waved out to the side and touched the electric fence wire. Talk about going out with a bang.
 

Online Simon

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Re: Fried Gecko Anyone?
« Reply #6 on: March 29, 2013, 11:09:43 am »
Are there any darwin awards for geko's ?  8)
 

Offline SeanB

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Re: Fried Gecko Anyone?
« Reply #7 on: March 29, 2013, 11:27:49 am »
I think they won it that day...................
 

Online Simon

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Re: Fried Gecko Anyone?
« Reply #8 on: March 29, 2013, 11:33:48 am »
I think they won it that day...................

Well nicer way to go ;)
 

vlf3

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Re: Fried Gecko Anyone?
« Reply #9 on: March 29, 2013, 02:50:27 pm »
Quote
Well, that'll teach it to lick the cap leads to see if there's any charge left!

This situation reminds me of a friend, who like myself in our school days, experimented with portable battery valves...
well I am retired you see; anyway, one day he tongue tested the L.T. Low Tension heater supply leads however,
he got the wrong pair and found 120 Volt DC, H.T. High Tension  :-DD boy did he jump... said he saw stars before his eyes.
 

Offline Ferroto

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Re: Fried Gecko Anyone?
« Reply #10 on: March 29, 2013, 03:11:06 pm »
Fried Geckos are delicious. >:D
 

Offline paul23

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Re: Fried Gecko Anyone?
« Reply #11 on: March 29, 2013, 07:51:17 pm »
I get this quite regularly on air conditioning systems that I service.  Normally they just short out the mains and take a fuse, cap or pcb track out, all of which or easy to be repaired, unfortunately the lizards can´t be repaired.

I did have an incident last year where a lizard stepped across the mains filter cap, the fuse and main processor on the pcb.  There was nothing left of the lizard at all, other than a skeleton, the cpu was fried as well as a few miscellaneous components.  The fuse was alright though.  All in it cost around 2.000€ worth of damage.

They seem to prefer inverter systems for some reason.
 
 

Online Simon

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Re: Fried Gecko Anyone?
« Reply #12 on: March 29, 2013, 08:33:59 pm »
maybe they like the frequecy they work at
 

Offline David_AVD

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Re: Fried Gecko Anyone?
« Reply #13 on: March 29, 2013, 09:15:36 pm »
I get this quite regularly on air conditioning systems that I service.  Normally they just short out the mains and take a fuse, cap or pcb track out, all of which or easy to be repaired, unfortunately the lizards can´t be repaired.

This variety of lizard is an introduced pest over here.  My dog does like chewing them (the slow ones) up though.   ;D
 

Offline NiHaoMike

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Re: Fried Gecko Anyone?
« Reply #14 on: March 30, 2013, 12:39:37 am »
I did have an incident last year where a lizard stepped across the mains filter cap, the fuse and main processor on the pcb.  There was nothing left of the lizard at all, other than a skeleton, the cpu was fried as well as a few miscellaneous components.  The fuse was alright though.  All in it cost around 2.000€ worth of damage.

They seem to prefer inverter systems for some reason.
Conformal coat the boards before installing them, always a good idea for outdoor electronics. (When I did a teardown on an old central A/C many years ago, I noticed that the the electronics bay had a lot of rust due to moisture.)
Cryptocurrency has taught me to love math and at the same time be baffled by it.

Cryptocurrency lesson 0: Altcoins and Bitcoin are not the same thing.
 

Offline Things

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Re: Fried Gecko Anyone?
« Reply #15 on: March 30, 2013, 11:52:43 am »
Geckos provide hours of entertainment at night for our cat, worst part is she usually leaves them in the hallway outside someones bedroom.
 

Offline David_AVD

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Re: Fried Gecko Anyone?
« Reply #16 on: March 30, 2013, 12:04:58 pm »
I flick them down off the wall / ceiling and let the dog chase them.  It's rare for the Gecko to win that game.   ;)
 

Offline Things

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Re: Fried Gecko Anyone?
« Reply #17 on: March 30, 2013, 12:39:49 pm »
Haha, I usually don't mind them in the house, seems to keep other bug infestations at bay like mozzies, cat always manages to find a few at  floor level and out in the yard to bring inside though.
 


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