Cet utilisateur n'a pas encore complété son profil.
Questions
I know this is a very long question, but I attempted to be completely thorough about my troubleshooting steps taken and...
Plus d'informationSo I have these capacitors on the motherboard that have F255-1500-6.3V on the cap and nothing else. What kind of...
Plus d'informationWhere can I reliably purchase SMD components for Apple devices to do board level repairs? Also in the event of identifying...
Plus d'informationRéponses
First step is to make sure you shut the device off and remove it from charging cables - remove all electrical current from the device as it is causing more damage to the device to keep it plugged in or press the power switch Orange juice is full of all sorts of fluid additives called electrolytes. Electrolytes are important for us because they conduct electricity for our bodies, unfortunately when an electrolytic drink spills into a computer board, even if you dry it the only thing to evaporate is the water, salts, sugars, ascorbic acid all stay behind and coat the motherboard components causing electricity to just go wherever it wants instead of the proper circuits to cause the item to run properly. You probably have a shorted circuit on the charging dock itself. Feel free to visit my website www.MoonTechRepair.com and contact me if you're interested in possibly having this device repaired. I specialize in component level repair and hardware troubleshooting and have over 98% success with removal of fluids...
Plus d'informationAlright so I went to the drawing board and downloaded board diagram to check the current flow in the device because I heard a hum with the device plugged into the screen, and then a ten year old lesson from Electrical Technology hit me - humming is frequently transistor undercurrent - not what I was thinking as a ground fault. The device had intermittent power failure under random circumstances - all of which I deduced was from the CPU or HDD drawing any sort of actual current rather than standby levels. The end result was going back to drawing board and assuming my colleague was a total doofus and did a half-hearted Dx. I went back to point A and tested the AC, then tested DC volts which were spot on at 19.1V, and then I decided to check out the current levels and the DC current was jumping all over between 0.01-1.19A The dang charger was bad, and the colleague ordered batteries and sent it uphill for major board level testing without doing the basics. Never forget to literally listen to you PCBs in the...
Plus d'information