Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

[lookimback]

OK, I have a portable DVD player that was given to me. These things are a dime a dozen so its just been sitting in a drawer for a few weeks. I finally got around to opening it up and think the problem is a bad cap on the power/input board. The thing pretty much does nothing. If you can get it to open, it won't close. If you put a disc in (which requires you to force close it), it will spin but won't play. If you don't have a screwdriver to take it apart, you won't ever see that disc again. Power will turn it on but then none of the buttons will work. When I opened it I noticed the cap I mentioned above. It is a 10uf 400wv. ESR is 3 ohms. Capacitance tests at 9.02uf. Cap has a blue stain on the top. I've seen many caps leak brown or black but this is the first time seeing blue. Voltages should be 12v and 5v. I'm seeing about 10.6v and 4.8v. The 4.8v I guess is pretty close but the 10.6v is about 17% short of what it should be. So, I have 2 questions. 1, could the low voltage and low capacitance alone be the cause of the symptoms? And, 2, the cap is a 10 uf 400wv. What is 400wv and what should I replace it with? I can't find any 10uf 400wv caps at Digikey.

[lookimback]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

OK, I figured out that the "wv" just means working voltage. So its just a 10uf 400v capacitor. Any suggestions for a suitable replacement?

[Caleb]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

panasonic, nichinon, chemicon, or rubycon in the appropriate rating.

panasonic on DIGIKEY

[lookimback]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

I usually do go with Panasonic. I just wasn't sure which series would be best for this application.

[Caleb]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

They dont seem to have any in the fm, fr or fc series in this format. But Ive always had good luck with the panasonics pretty sure the eb series will work fine for your purpose.

[lookimback]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

I'll give it a try. Thanks

[lookimback]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

Well, cap was definitely bad but not only problem. Can't believe it but I actually found a service manual and its very detailed. Its got data sheets on the boards so I should be able to fix this.

[ben7]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

Well, a blue mark on the cap might be a from a QC check, someone with a pen putting a mark on it.

BUT, there is a higher chance that the secondary side capacitors are bad. See if any of them have rounded tops, or have odd capacitance readings. Also test those little 5mm diameter caps on the power supply too!

[lookimback]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

I seem to have shorted the power supply while testing. I need to order some smaller test probes for my meter. I was wondering about whether that mark might have been from some type of QC. I might have zapped the IC. My probe slipped of the 6 pin and shorted 5 (ground) to whatever 6 is. No rounded caps.

[ben7]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

I seem to have shorted the power supply while testing. I need to order some smaller test probes for my meter. I was wondering about whether that mark might have been from some type of QC. I might have zapped the IC. My probe slipped of the 6 pin and shorted 5 (ground) to whatever 6 is. No rounded caps.

Aw

LOL that has happened to me many times. I just get a project working, and while fiddling with it I usually manage to pop it... xD

[lookimback]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

I just got my new Fluke multimeter a couple weeks ago. Still only have the original probes that came with it. I'm going to look on eBay right now. This isn't the first time I've done this myself either. I think a set that have a sharp, fine point would be much more suited to this type of work anyway. In addition, a set of tweezer probes and alligator clip probes would be quite handy.

[lookimback]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

I really wanted Fluke brand probes but they just weren't in the budget. I ordered some generic probes made by Uni-T something, and some alligator clips that slide over the probes. Fluke makes a really nice deluxe electronics test set but its like $160. I'll get it in a couple weeks but can't afford it right now. The probes I ordered have a fine, sharp point. Less likely to slip off. For now, until they get here, I'm going to put some heat shrink on the probes and just leave the point exposed.

[cliff_hootarski]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

If you can find just the fine pointed ones....
These are the ones I use and I love them!

flea bay:

http://www.ebay.com/itm/FLUKE-TP920-...item4d0c6d195f

[lookimback]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

Do those just slide over the stock probes?

[cliff_hootarski]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

Yes they do.

[lookimback]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

OK. I wish I would have known that before I ordered the generic ones. Would have only been about $15 more than I spent. I'll add them to my wish list. Thanks.

[cliff_hootarski]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

http://www.amazon.com/gp/product/B00...=ATVPDKIKX0DER

Here are just the two thin probes.

[lookimback]

Re: Memorex DVD Player-MVD2016BLK 10uf 400wv cap?

That's what I paid for the generic ones too.