Problem with my old famiclone malticart

Discuss hardware-related topics, such as development cartridges, CopyNES, PowerPak, EPROMs, or whatever.

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ouso1999
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Problem with my old famiclone malticart

Post by ouso1999 »

Hi guys .
Among my collection I have a multicart that has a problem when playing it .
It worked well at first for years but I suddenly found out that it no longer works well . I don't know if it's related but I guess that happened after a friend of my brother licked the cartridge because he thought it would increase its connectivity and it worked for a while then it became like that


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And some games give black screen
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Born to amuse, to inspire, to delight
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tepples
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Re: Problem with my old famiclone malticart

Post by tepples »

Symptoms in screenshots:
  • letter displaced by 8, withy BALL becoming BADD
  • vertical lines through middle of characters
Given these, I would try to clean PPU data line 3. That's the pin right next to the power pin according to the cartridge connector pinout and check its continuity into the board as far as you can.
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ouso1999
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Location: Cairo , Egypt
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Re: Problem with my old famiclone malticart

Post by ouso1999 »

tepples wrote: Sun Feb 26, 2023 10:48 am Symptoms in screenshots:
  • letter displaced by 8, withy BALL becoming BADD
  • vertical lines through middle of characters
Given these, I would try to clean PPU data line 3. That's the pin right next to the power pin according to the cartridge connector pinout and check its continuity into the board as far as you can.
thank you for answering
Isn't that the second pin from the right on the front side of the cartridge? Which is called PPU D3 ? Is that the pin you're talking about?
Sorry I'm noob .
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Born to amuse, to inspire, to delight
Here one day
Gone one night
Like a sunset
Dying with the rising of the moon
Gone too soon


I missed u dad
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OmDRetro
Posts: 20
Joined: Sat Mar 25, 2023 7:54 pm

Re: Problem with my old famiclone malticart

Post by OmDRetro »

ouso1999 wrote: Tue Feb 28, 2023 3:02 am thank you for answering
Isn't that the second pin from the right on the front side of the cartridge? Which is called PPU D3 ? Is that the pin you're talking about?
Sorry I'm noob .
I know this is quite dated, but you're right :D

What I find common in multi-carts is that their ROM chips are set in the label side of the cartridge just like mine.

Clean that pin with some rubbing alcohol and a q-tip (cotton buds).

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OmDRetro
Posts: 20
Joined: Sat Mar 25, 2023 7:54 pm

Re: Problem with my old famiclone malticart

Post by OmDRetro »

Okay, I stumbled across a couple of videos using a technique to repair cartridge edge connectors with copper tape. It looks like your cartridge's edge connectors might not be connected properly to its respective PCB traces.

You may refer to the following for reference:
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