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Fried with Duo?? –
I recently baught a duo chip. And I just had a friend install it in my v7, plugged it all back in and unit powers up, it will let me eject put in disc, it then spins as normal. but I have no video or audio, the screen is just black? Does anyone know if this is just a bad soilder somehwere? If so which point is it, I was going to start desoildering each one individually until I find it, but I dont want to put the extra burn on it if I dont have to. Is it just fried? Any help would be greatly appreciated!
Check the bios pins for bridges or a squashed or corrupted wire.
Sorry for sounding stupid but which one is the bios pin. thanks
the BIOS wires are pionts M-R (on the duo)
If the game is booting (and its a back-up), then your problem may be the ground wire.
Make sure the power and ground wires are thicker than the rest (22ga recommended), and the ground is as short as possible (no more than 10cm MAX). I try to keep mine less then 2cm. You may need to try diferent ground locations (theres lots to chose from)
The power can be longer (no more then 20cm)
P.S. you can tell if the games is booting by watching the disk drive even if theres no video/sound
The games dont boot, it just powers up I put the game in and the try goes back in, then nothing. the disc spins but I have no output, no video or audio. hmmm But thanks for the point to the bios, I will check those again.
If the lights work (both of them), the disk drive spins, and opens/closes normally then things look good.
You won?t get video until you get a good ground (that's what I find most of the time).
What im suggesting is to move the ground (I've moved it up to 3 times on one board). You can tell if a game is booting without video by watching the disk drive spin.
It first scans the disk, and then the disk drive speeds up if the game passes the test. So watch the disk drive if it stops after the scan then check the BIOS wires AND ground. If the disk drive keeps spinning then move just the ground (If it keeps spinning it usually means the install is good, but the current isn't flowing out of the chip fast enough) And that's why the ground has to be Thick, Short, and Solid.
I was getting the black screen with my v4 duo install, but only when I screwed the case together. Without screws it worked fine. Try blocking some points and the top of the chip from the metal plate with eletrical tape, that worked for me.
Destro, i recommend sending it off to a professional, get it done right !!
Well, I think that is what I will have to do if I want it done, I got another ps2 and did the soilder job all my self. The ps2 booted up fine everything worked like normall, but it would not play any burnt games at all. It still played reg games and everything else was fine. no feedback nothing, just didnt work. I think it had something to do with the chip not getting power. is there an alt. power you can soilder into? I pretty much gave up, I still have my swapmagic and flip top so I have just been useing that.