Technical and Repair Assistance

[jpx72]

Reaction to ericj's suggestion:
Not with oil! Just try to clean it with some alcohol or special contact-cleaning solution (ask in electronics shop).

[Leufion]

That's ok, I usually use isopropyl alcohol and Q-tips to clean any electronic contacts.

Also, forgive my ignorance, but what is the 'pot' part to lubricate? Is it the contact on the electronic board for the slider?

As for the Zelda sound issues, that stopped happening once I replaced the slider so as of now I'm issue free!
Post Merge: October 09, 2010, 03:34:20 pm
Hey - got a quick question again, this time about video output. Have you ever seen wavy dark lines when playing a Famicom or TF? I've been noticing these moving wavy bars that go in a diagonal pattern up and down the screen. I used to see them on my NES when there were a lot of RF switches around.
Is this the result of some sort of interference?

[famiac]

hello, i have a problem, i just a panasonic tv model # CT-20G4A and i do not have it's remote, how can i get it to switchinto AV mode without a remote?

thanks!

[ericj]

If there aren't any menu or video device selection buttons on it, I think you'll probably have to get a universal remote.

[famiac]

i have one
Post Merge: October 16, 2010, 03:44:54 pm
never mind i got it to work! i looked up the codes, it turns out my remote uses different codes than the normal ones.

thanks!

[MS-DOS4]

Hey guys. Today I come with a famiclone problem. Recently, my Super Joy III system stopped booting the internal ROM. I had to flip a switch inside just to get it to boot a cartridge. I've had this thing since I was a kid so I thought maybe an old wire came loose, but everything is soldered in nicely. Can the chip just die? 

If it helps, when you turn on the console with the internal switch set to boot from the ROM, nothing happens. The TV screen doesn't do that flicker showing the system turning on at all. It does the flicker and boots to a black screen when there's no cartridge inserted and the switch is set to boot from the cartridge only. This is obviously normal.

Any suggestions? 

[jpx72]

AFAIK the rom chips in pirate games can die. But I don't think it's this situation. All I can suggest is opening the system, and try to find loose parts, wires or maybe oxidized solder points where the rom chip (epoxy glob?) is soldered. Or maybe the switch (rom<->cartridge) became loose, or broken.

[Xious]

Clean the conacts on the controller  PCB wih 91% rubbing alcohol, then (with fine grit sandpaper) lightly sand the pins on the slider.

After sanding, wipe the pins with alcohol, then lightly (uisng a cloth) apply WD-40 to each prong. DO NOT use WD-40 on th controller PCB, ot spray directly onto prongs... Spray ot on a paper towel and thn apply it to the prongs manually!

Bend each prong out by 1mm or so, then put it back together.

That's ok, I usually use isopropyl alcohol and Q-tips to clean any electronic contacts.

Also, forgive my ignorance, but what is the 'pot' part to lubricate? Is it the contact on the electronic board for the slider?

As for the Zelda sound issues, that stopped happening once I replaced the slider so as of now I'm issue free!
Post Merge: October 09, 2010, 03:34:20 pm
Hey - got a quick question again, this time about video output. Have you ever seen wavy dark lines when playing a Famicom or TF? I've been noticing these moving wavy bars that go in a diagonal pattern up and down the screen. I used to see them on my NES when there were a lot of RF switches around.
Is this the result of some sort of interference?

[TeO_LTU]

Hi,
yesterday I bought famiclone and I bought i only for 4 Litas (about 2 $ ) And I had no conditions to test it.

That day I tried to turn it on but nothing happened I used 230v ac adapter. So everything that I want to know is... Can I repair it?

Thanks, and sorry for my bad english

[MS-DOS4]

Nor worth it.

[jpx72]

Post some pictures of it, from outside and inside...

[TeO_LTU]

Inside : http://www.ipix.lt/images/58657945.jpg
              http://www.ipix.lt/images/12799448.jpg
              http://www.ipix.lt/images/85583715.jpg
             http://www.ipix.lt/images/14493788.jpg
            http://www.ipix.lt/images/20993723.jpg

Outside: http://www.ipix.lt/images/46115984.jpg
                http://www.ipix.lt/images/37881566.jpg
                http://www.ipix.lt/images/10142369.jpg
                http://www.ipix.lt/images/53696626.jpg

[cubelmariomadness]

That looks pretty cool! 

But 230 volts would probably be WAY too much power for a simple famiclone. The NES only uses 9v.

[Xious]

That looks pretty cool!  

But 230 volts would probably be WAY too much power for a simple famiclone. The NES only uses 9v.

That's 230VAC, as he stated: He's in Lithuania, who use 230 Volts AC, not 100VAC (like Japan) or 110-120VAC (like the US). Europe works primarily on 220-240VAC, which is why you will need a voltage converter to run Japanese or American small appliances there. (Large appliances often use 220-240VAC in America as well, if you are curious.) The input is 230 volts, and output is 9VDC or 10VDC on his transformer... Many countries around the world have differing AC voltages, but Famicom and clone systems universally like 10VDC, with around 850mA and center pole negative termination on their transformers.

What are the exact symptoms (e.g. does the TV screen change at all when you try turning on the system with or without a game), and are you sure that your transformer (AC adapter) is functional? Never use the transformer from an NES, as they output 9VAC not 9VDC and will damage the voltage regulator inside. If you can locate another with similar specifications, and the same tip type (e.g. an AC adapter from an original SEGA Megadrive/Genesis), you can try testing it. What you need is:

Input: 220-240VAC
Output: 9VDC or 10VDC; 800-1200mA
Polarity: Center Pin Negative (-)-----+

[TeO_LTU]

Thank u so i should try genesis or megadrive adaptor? And what about ps1 adaptor? oh,oh i almost forgot you said that i cant use nes original adaptor can u say why? Maybie i can try another famiclone's "zhilliton" adaptor?