The battery pack for my JVC handycam model is already obsolete (you can't find one in any shops) that's why I improvised a power supply for it.
I used a 7.2V battery pack (same specifications with the original one) but unfortunately I connected it to the handycam in reverse polarity.
The handycam won't turn on. I read several articles about damage due to reversed polarity, and they mentioned about a diode-fuse mechanism that prevents total damage to the equipment. Is there any way I can repair it?
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Re: Damage due to reversed polarity
Hello unless you know something about electronics of course you may repair it ...this kind of equipment are so sophisticated take extremely care....i think it would be better to get a estimated cost.......saludos
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Hi Anonymous, drain battery completly buy hooking it up a headlight. It may take a few days but it is the only way, make sure battery has 0.0000 volts before hooking it back up to a trickle or 1 amp charge rate. Good luck
Look at the end of the red cable coming from the battery. There will be a metal strip bolted to a plastic block. That is the main fuse. If it's not there it will be in the plug that goes on the starter relay.
Sometime when reversing polarity on the bike you can damage the engine management system. Check everything carefully. Hope you didn't. good luck.
first the battery will drain if there is current draw to check current draw with an ampmeter to battery to find out the drain unplug fuse one at the time you will find the circuit second the battery can hold the charge itself (crack,or short cell) when reversed the polarity it give a good good shake
Hi, well the reason this has happened is that these contacts are stored in battery backed up NVRAM, now this RAM is very sensitive to polarity reversal, and also due to the way it works, doesn't have polarity reversal protection, on that circuit. So when you reversed those batteries even though the reverse polarity protection saved the Unit as a whole, the NVRAM would have been destroyed or wiped at best. These is no real way of replacing this NVRAM, I guess you could send it back to the factory though and ask for a "Quote" with view to the repair.
Yes you can use any 6 volt DC for your radio but the most IMPORTANT thing to remember is to connect the terminals in the correct direcction. First of all you can solder a red wire from the positve terminal of the battery and a black wire from the negative terminal of the battery. This must be connected to the source of your 6 volt battery.You can buy a good DC jack socket female to be fitted into the vacant spot of your radio and use a male jack to supply the DC. Only be carefully to see the polarity. To avoid any reversing of polarity use can even connect a diode in the forwarrd bias towards the positve terminal. This will prevent any wrong connection of polarity to damage your set. Helpful? Good day
This is an obsolete tablet PC. It also goes under the model number EZ30 by Elitegroup. Two batteries were available, however neither is currently available. If you have the skills, you can rebuild your existing 3 cell pack with new LiIon cells. Use extreme care if you do, and make absolutely sure that you replace all the mechanical and electrical protection otherwise the pack may present a fire hazard. Also, there was an extended battery made for this model (11.1V 4400mAHr). The model number for the battery is 822V80010002. Good luck finding one though. I have seen a picture of only one, and the manufacturer of the battery is out of business. Also if you need support for this unit, it is still available from Elitegroup at http://www.ecs.com.tw/ECSWebSite/Product/Product_Detail.aspx?CategoryID=3&DetailID=386&DetailName=Feature&MenuID=93&LanID=0
Will your camera power on with a spare battery or through the electrical adapter ? If so then your camera is fine and the problem is your battery!
This is why manufacturers always recommend to use the supplied batteries and recommended chargers only and not some third party junk. This is why you have batteries exploding on people they don't read the warnings.
Yes it is possible to damage your battery - perhaps your battery cannot take a charge - it is NOT normal to charge a battery for a week !
your battery needs a nominal voltage to remain healthy if you allow it to drain below that voltage you have reverse polarity and your battery is good for the garbage bin.
use the recommended charger from now on and get new batteries.