Author Topic: What to do after accidentally plugging aether to 110v  (Read 3191 times)

Offline salongaopm

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 Today as I was preparing my display for the Halloween, I accidentally plugged in my 3 Aethers to 110v. Is it possible to repair the aethers?

Offline Steve Gase

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Re: What to do after accidentally plugging aether to 110v
« Reply #1 on: October 10, 2014, »
all three? 
ouch.
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Offline salongaopm

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Re: What to do after accidentally plugging aether to 110v
« Reply #2 on: October 10, 2014, »
yep...all three. After plugging the 3rd aether, I noticed the small spark  <md..  That tip me off that I did something wrong <fp.

Offline tbone321

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Re: What to do after accidentally plugging aether to 110v
« Reply #3 on: October 10, 2014, »
The primary thing that you did wrong was to use a 120V plug on a 12V device and I would change that before even worrying about fixing the devices.  You may have just fried the regulators.
If at first you don't succeed,
your not cut out for sky diving

Offline salongaopm

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Re: What to do after accidentally plugging aether to 110v
« Reply #4 on: October 10, 2014, »
voltage regulator = LD1117V33C ?

Offline tbone321

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Re: What to do after accidentally plugging aether to 110v
« Reply #5 on: October 10, 2014, »
That is one of them but taking a further look at the parts being used, you probably have more damage than that.  Even the rectifier is only rated for 100V peak voltage and you hit it with over 120V.  You would need to connect the device up to a landscape transformer and begin doing some voltage measurements to see what is and isn't working such as the rectifier, the 5V regulator, the 3.3V regulator, and the electrolytic cap (big one next to the rectifier).  Also see of you blew the fuse. I would remove the PIC and the 485 before testing.
If at first you don't succeed,
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Offline salongaopm

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Re: What to do after accidentally plugging aether to 110v
« Reply #6 on: October 10, 2014, »
how testing is done? can you give a step by step instructions for dummies.

Offline salongaopm

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Re: What to do after accidentally plugging aether to 110v
« Reply #7 on: October 13, 2014, »
anyone?

Offline salongaopm

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Re: What to do after accidentally plugging aether to 110v
« Reply #8 on: October 13, 2014, »
Check/tested the following parts:

Using instructions from the link below:
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 LD33V
- INPUT = 0.00
- OUTPUT = 0.00

7805
- INPUT = 0.03 - 0.00
- OUTPUT = 0.00

7812
- INPUT = 0.03 - 0.00
- OUTPUT = 0.00


LDO Voltage Regulators
Lm2941T = 0.00

All Bad readings?


Using instructions from the link below:
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RECTIFIER
- READING 500+ FOR 4 LEGS - Means good?

Lm2941T
0.00 reading from left and right legs

Offline tbone321

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Re: What to do after accidentally plugging aether to 110v
« Reply #9 on: October 13, 2014, »
All of those regulator readings show that you are not getting power on the board.  The first step would be to check the fuse and make sure that it is not blown and you need to check it with your meter.  The fuse is the little green component to the lower left of the AC input.  Set the meter to measure resistance and measure across the fuse.  Zero resistance shows that the fuse is still good while anything above 1 ohm shows it to be damaged or blown.  If the fuse is good, then we can proceed with testing and if not, it needs to be replaced before we can proceed.  Make sure to check all three Aethers.
If at first you don't succeed,
your not cut out for sky diving

Offline golights

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Re: What to do after accidentally plugging aether to 110v
« Reply #10 on: October 14, 2014, »
Check the fuse,
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Offline RJ

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Re: What to do after accidentally plugging aether to 110v
« Reply #11 on: October 14, 2014, »
fuse should be blown, othe damage likely but the fuse will almost for sure need replacing.

RJ
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Offline salongaopm

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Re: What to do after accidentally plugging aether to 110v
« Reply #12 on: October 14, 2014, »
I checked the fuse and there is no changes in the reading of the multimeter. I am not sure if I did it right though. I set the multimeter rotary switch to 200 ohm ( I thjnk) just beside the continuity sign. The multimeter reads figure 1 without doing anything and I got a reading of 1 also, no change after touching both ends of the fuse with leads.

Offline tbone321

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Re: What to do after accidentally plugging aether to 110v
« Reply #13 on: October 14, 2014, »
That indicates that your fuse is blown.  If your meter has a continuity function, you can use that to test fuses.  If you switch the meter to that function and touch the leads together, it should beep or send out some type of tone.  This indicates that you have a connection between the two points.  It should do the same thing when you touch the leads to the ends of the fuse and if not, then the fuse is blown and needs to be replaced before going any further with determining what else is damaged.
If at first you don't succeed,
your not cut out for sky diving

Offline salongaopm

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Re: What to do after accidentally plugging aether to 110v
« Reply #14 on: October 15, 2014, »
I replaced the blown fuse and now it lights up white but not responding to a test sequence. What else could be the problem? I also checked the other two aether, one cosmetically looks clean and okay while the other one looks really bad with burnt parts and marks...looks like a goner or at least will need a lot of work. See attached picture: