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Water Damaged & Exposure to 91% Rubbing Alcohol

My iPod Touch became water damaged after a water bottle opened in girlfriend's purse. Tried to evaporate water by using 91% rubbing alcohol and leaving it in rice. Of course, now I realize this probably wasn't the best idea (the alcohol that is) and now I would like to attempt to fix the device myself since its shot anyway. I know I probably need to buy a battery replacement. But due to the potential rubbing alcohol damage. I have 3 questions:

1) The LCD screen is intact, meaning the glass is not broken, however, there are marks inside the screen, what parts do you think I will need to order from this site, the front panel or the LCD?

2) Does anyone have any recommendations for cleaning of possible corrosion or other water/alcohol damage factors?

3) Is there anywhere that teaches you how to repair iPods or other electronics? I actually find this really interesting as I used to help my dad, a master electrician, solder and fix my overheating playstation, radios, etc., amongst other things.

Any help is greatly appreciated.

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Assuming you are answering question #3, thank you for your answer, mayer. However, I went through the step-by-step guides before posting this question and to my knowledge my questions are not answered directly in these guides. Furthermore, my uneasiness with the do-it-yourself process is that many ppl on this site have caused more damage to their iPod or broken something else while repairing. Therefore, I wanted to know more information about the process before beginning. I would like to know as much as possible before I begin. thx

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What do you mean by 'marks' inside the screen? Are they generally round and sort of hollow? They could just be residue from water vapor and may wipe off once you get inside.

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Answer to 2:

Alcohol should not cause any corrosion. It is often used as a cleaner for electronic assemblies (now that we cannot get Freon). Some adhesives don't like alcohol much. Most plastics should tolerate it well. Water *may* leave a greenish residue. Copper corrodes into a green dust. Distilled water will not do much harm, Sea water is really bad.

I would scrub (gentle pressure) with a soft brush (they sell acid brushes for this purpose) any green residue and probably with a brush that had some alcohol on it. If you need a more serious scrubbing tool, you can trim the bristles to no less than 1/4" long but do not push so hard you bend the bristles.

There are lots of sites that teach basic electronics. Most portable devices are really, really complex. Just 10 years ago an iPod would have required a desk full of electronics. In 10 more years it will probably be implanted at birth.

Many of the parts are 'programmed' (look up FPGA and ASIC) and you could not make a replacement even if you could get the blank part. Firmware updates can actually change the parts inside!

Basic troubleshooting requires some logic and an understanding of what the device does and in what order. You do not need to understand all the parts to be able to do basic troubleshooting of a device. You do need to know how power flows and what signals are needed by which parts. Apple has some documentation for it's developers, but I think you have to 'join' to get access.

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So if my phone has water damage to it, I can put it in 91% alcohol and it will be okay?

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No, you need to stop using it asap, disassemble it and clean the circuitry. Likely would need to replace battery as well.

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Look to the right side of the screen under the picture of the iPod. Click on the Step-by-step Guides, the teardown and answers to help youself learn how to repair.

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Usually for most water damaged devices, you'll need to replace the battery. and when applying the isopropyl alcohol, the best way is to open the device and then use a detailing tool (toothbrush or Q-tip is fine) and clean it on all the sensitive components.

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Hi I have used 91% Isopropyl alcohol to clean the main circuit board on several high end car audio amplifiers with great results. It is non conductive and safe to use on electronics circuit boards providing that thorough drying time is allowed for the alcohol to completely evaporate. Avoid using rubbing alcohol due to it's additives and higher percentage of water content. If you can find 99% Isopropyl alcohol that is the best alternative to using expensive specialty electronics cleaning agents. Some plastics, buttons, plexiglass surfaces can fail or discolor so be sure to separate the plastic case display screen and buttons when cleaning the components main circuit board. If your device had water exposure it is best to of course remove the power source and immediately clean the main circuit board with 91-99% Isopropyl alcohol doing this will remove residue from the water exposure preventing corrosion.

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