SEGA 16-bit CASTLE II made in Taiwan (problem)

hi guys
i hop you understand me, because my English bad

i have SEGA 16-bit CASTLE II made in Taiwan and i got problem with some games see pictures below, and i test cartridge with another console works fine. please if someone can help me what i do for fix the problem

there is my console:-





there is my problem:-







thank you

 

please help me guys

 

All I can tell you is that you have a pirate clone if you didn't know that. It is apparently a model that no one has really seen or documented before. I have never seen glitches like that before and tracking it down will be hard. That's due to lack of info on this clone and the fact most clones are subpar quality compared to official stuff.

Sorry. Wish I could help out more...

 

Find someone to look at the capacitors first. If not that, start narrowing down potential issues. Video memory or video chip seem plausible. Maybe even cartridge slot.

Even if there weren't any problems, it'd be interesting to find out if the Mega CD expansion works.
Doesn't look like 32X will work. I don't see RGB video output which 32X internally uses.

 

Capacitors??

Reflow the solder to the VRAM pins and carefully to the ASIC next to them.

 

thank you for reply and you not need to say sorry to me you are a great thank you so much

 

thank you for reply, i do already change those chips see pic. and nothing happen

 

thank you for reply. where the pins of VRAM ? can you Marking on my picture please ?

 

I believe the VRAM chips are the 2 sitting to the left of the 2 big chips with the many small pins. As stated, try reflow soldering those back down. There's a good chance one of the pins on the ASIC chips could be lose or completely disconnected. So if you have the skill, resolder those back down too.

 

brother i already re solder those chips and still same problem what you think if i re place the 2 VRAM ?

 

Could try that although my money is now on there being bad capacitors in there. Those are just like batteries. They eventually wear out and stop working. Common problem on Game Gears.

 

YEEEEEEEEEEEEEEEHA i got it ( 1 link between VRAM and SE-93 JDAA disconnected) i re-concoct it by wire and it's work fine now, thank you guys so much

 

Looks pretty legit.