View Full Version : Wall Wart for DVDO iScan Plus?


Damnationdoormat
02-28-07, 06:34 PM
Okay, I'm probably a dumbass fool for even buying it, but I got a DVDO iScan Plus on eBay.

The included a universal power supply obviously isn't correct, it's from Bell Phones.

Now, I'm no electric wiz, so I need some help.

The unit displays a POWER light, but doesn't do anything else.

It says it requires a 100-240VAC 50/60Hz power supply, the one that it's supposed to have is 3 pronged as well. That's all the manual states.

Is it easy to buy these? Anyone have all the ratings for the "real" DVDO power supply?

The Bell Phones supply has these ratings (it also got warm as hell only after an hour):

Class 2
2 prong
Input: 120VAC 60Hz 8W
Output: 9VDC 300mA

Now, the DVDO unit is in perfect shape, it doesn't smell burnt at all, and when I slid the processing card out of its casing I didn't see any burnt circuits or ash on the steel casing. Of course, that doesn't mean it isn't fried, but there doesn't seem to be any obvious signs.

Any help guys? :)

Damnationdoormat
02-28-07, 06:56 PM
Is this what I need? :confused:

http://www.ozoneservices.com/products/12VDC/images/PS-01b.jpg

sidb
02-28-07, 07:32 PM
The picture you show looks about right. It's an efficient switchmode (http://en.wikipedia.org/wiki/Switched-mode_power_supply) adapter with a ferrite core on the cord to suppress high frequency noise in the DC output current. The Bell wall wart that gets hot is probably a linear diode rectifier (aka power vampire, for the electricity it sucks through its little fangs even when not in use).

You don't need an official DVDO adapter, just one with the right specs. I doubt DVDO does anything more than bundle a good but standard off-the-shelf one. I would have thought those specs would be in the manual, though. You want one with the exact same voltage and connector, and at least as many amps. The "Class 2" rating just refers to its shock hazard.

Make sure you get a good one -- cheap switchmode rectifiers put out a noisy current which may make the video look noisy, too. You will probably have to order online somewhere; Radio Shack, etc., only stock crap ones, if they even have any that aren't just linear wall warts. If you're good with a soldering iron, you don't have to worry about the connector on the one you buy.

Of course, if the Bell adapter is the wrong voltage or polarity, it could have already damaged your iScan. Since you clearly bought it from a somewhat dodgy seller, though, it might have been broken before you got it. In either case you should return it immediately if possible.

Damnationdoormat
02-28-07, 08:19 PM
Thanks a lot for the detailed response. :)

I contacted the seller and he said I could return it, though I might just go out tomorrow and dig around for a supply just to see. If the unit is okay, I'll keep it and buy a better supply.

Crossing my fingers it's okay. :o

Ray Cendroski
02-28-07, 10:05 PM
The wallwart on my older DVDO Iscan model crapped out a long time ago. DVDO was supposed to replace it under warrenty, but I never heard back from them. I replaced it with this model that's available at your local Radio Shack store:

http://www.radioshack.com/product/index.jsp?productId=2049693&cp=2032056.2032136.2032153&parentPage=family

If you go this route, just make sure the voltage output is the same, and the current capacity of the new supply is > or = to the missing supply.

Ray

Damnationdoormat
02-28-07, 11:04 PM
If you go this route, just make sure the voltage output is the same, and the current capacity of the new supply is > or = to the missing supply.
If I could only find this out... :(

Would that RadioShack adaptor suit it?

It appears the iScan Pro required 6V DC-In, 9W (active), 2.5 (standby).

The iScan HD comes with a universal 6VDC @ 5A AC to DC external power adapter, which accepts 100-240 VAC at 50/60Hz.

Damnationdoormat
03-01-07, 11:07 PM
Well, I went to RatShack and grabbed a 6V/800mA adaptor and the unit works fine now. :)

Laserdisc looks alittle better, but on a whim I hooked up my cable box via S-Video (and VGA to my Samsung DLP, using the "Expand" or the "1:1 Pixel Mapping" picture mode) to see how the SD channels look.

Wow.

This thing kicks both my cable box and my TV's ass at 480i SD. Switching back between the DVDO and my TV processing 480i over Component, there's no contest. Of course, bad looking channels still generally look bad, but on good ones it looks awesome over the DVDO, especially the digital ones. For some reason the Home Shopping Network is one of the best looking. :p

One thing I see with the TV is a lot of small artifacting/mosquito noise on many of the channels, but on the DVDO it's either greatly reduced or gone. Also on the TV everything is very edge enhanced (even the Comcast menus with the TV's Sharpness at 0 it looks terribly "crispy"), on the DVDO this harshness of lines is gone. Another thing is overscan, on the TV there has to be nearly an inch cut off the bottom, but all four sides suffer. The DVDO must have nearly none to zero overscan, it's like someone magically zoomed out on the picture. The DVDO is just generally more "naturally" sharper and colorful (even when matching the TV's picture settings on both inputs). This device caused an immediate improvement.

The craziest thing is my DLP has the Faroudja DCDi FLI-2310 chip for analog processing. It's internal settings must be WAY off. Wonder why Samsung decided to basically make a solid chip for SD produce such a trashy picture?

For $60, this now ancient DVDO device kicks absolute butt. The only problem is if I really look, I can be soft hum bars rolling up the screen, but I can live with it given the noticable improvement. It's most likely because I can't plug the wall wart into my conditioner.

Of course, it's still crappy ol' broadcast SD, but I never figured it could look this nice. :D