Technical and Repair Assistance

[kite200]

NEVER TOUCH THE HEAD ADJUSTMENT.

ONLY ADJUST THE SPEED AND SPINDLE

To adjust speed do what 333mhz said

[133MHz]

333mhz

Yea I'm faster now

[kite200]

typo, but funny joke

[Gao]

Alright, I finally got a replacement belt for my Famicom Disk System, and upon opening up the unit, I have found that the original belt seems to have become sticky goo.  Scraping it off doesn't seem to be working very well, and while one site said Zippo lighter fluid can get this off, I can't find anyone here that stocks it.  What else would work?  Rubbing Alcohol?

[kite200]

go to walgreens and get 90% or better isopropyl

[Gao]

Alright, I replaced the belt, and all I'm getting are errors 21 and 22 (and once 27).  The guide said to adjust the Potentiometer screw and keep trying, but which screw is that?

edit: Alright, I checked earlier in the thread and found it.  Now I have to get myself a very small screwdriver.  This will be the third one I've bought to fix this thing.

[Gao]

Alright, I got a screwdriver to adjust it, and so far I've got nothing but errors, and now the thing is giving me a battery error despite the fact that I got the batteries less than a month ago.  Would they get drained just by sitting in the system?  If not, what does this mean?  Is there any common AC adapter that's compatible with this thing (i.e. some sort of Sega Genesis adapter or something)?

[kite200]

battery error is sometimes a glitch, try restarting the system. if not get a AC, i just use the official one but there may be a standard, ask around here.

[Gao]

well it's doing this continuously now, so I doubt it's just a glitch.  I guess I'll check around to see what other AC adapters would work, if any, and perhaps just get new batteries if I can't find any.

[satoshi_matrix]

Not quite Famicom related, but I hope I can get some help nevertheless. I'm having a problem with my SNES AC Adaptor. One of the progs is loose and probably needs to be resoldered. However, I can't seem to figure out how to get the AC Adaptor open. There are like speical security plugs that keep the thing together. Any suggestions on how I should go about opening them?

If I can't repair the AC Adaptor, I'll need to replace it. Is there anything specific I should look for (becides the obvious voltage/ampridge/polarity info displayed) such as a particular name brand or type?

[kite200]

i'd recommend not opening the AC adaptor. there is a reason all electronics have the AC sealed with special screws.

http://cgi.ebay.com/AC-A-C-POWER-SUPPLY-OFFICIAL-ORIGNL-SUPER-NINTENDO-SNES_W0QQitemZ330205373444QQihZ014QQcategoryZ3592QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

[satoshi_matrix]

sounds good, except for the $14 shipping 

[Gao]

Alright, the battery thing seems to have gone away, but I still can't seem to get the thing to work.  Is there any trick to finding how to set the potentiometer, or is it entirely trial an error.  I already slowly went from one extreme to the other without any luck at all, and it's getting pretty frustrating.

[battra92]

Hi, I hope I'm posting this in the right area (forgive me, I'm a noob)

Anyway, after over a decade of collecting NES games and various other systems I decided to get a Famicom to complete the collection (as complete as a console collection can be I suppose) I got a unit on eBay which was sold with no power supply but that's not a big deal since I happened to have one with the correct voltage, polarity and what have you. Plus the whole unit was only $20 and it had the original box. Now I was not able to get any picture on the TV on channel 95 or any of the 90s for that matter.

I know the games work as they work just fine in my clone system (NEX) I know the PSU is fine as a multimeter shows it outputting 10VDC. It's rated to 1A which is a smidge higher than the .85 but it should be okay.

Question is, where to go from here? Any common points or places to check voltage in the unit? I'd like to repair it even though I do plan on getting a second and working one. I'm semi-good at electronics as I studied it for 4 years but have only used it sporadically the last 7. I only paid $20 for it so maybe it might be a good parts unit (It's in good cosmetic shape and the controllers seem good)

Any advice is greatly appreciated.

[133MHz]

Open it up and check the output of the 7805 voltage regulator. It should be a stable 5V on the rightmost pin, middle one is ground and leftmost is the unregulated input from the AC adapter. Tell us how that goes .

Oh and BTW, welcome! There's an Introduce Yourself thread on the off-topic chat board, check it out .

EDIT: Also, check ALL the channels, some people got it working on the lower ones, like channel 7 or 12. And if your TV has a switch for antenna/cable, try flipping it and see if it helps.