v4 no gap NTSC problems...please help

[chupalt]

Hey guys,

Well I've been screwing with this thing long enough that I decided maybe I should see if any of the experts have any advise for me. A couple of weeks ago I built a fluffy 2 and programmed a couple sx28ac/dp using it (tried rev16 as well as modblack code(I swapped A and Z)). I'm pretty sure these are fine, since my fuse/fusex values were right, and the code was verified fine when the cp fuse was not set.

So I installed it, but no matter what I do, I cannot boot backups. Its as if the chip isn't even on. I've checked the points a million times using a multimeter and using a magnifying glass and can find no bridged pins. I've tried it with z connected and disconnected, and with the alternate w point. I've also tried different values for the reset and oscillator resistors. As well I have tried to get rid of the resistor in parallel with the resonator thinking that the murata 50mhz model that I have may have them included.

So here's what it does.....
PS2 DVD backup ---> red screen of death
PS2 CD backup ---> acts like its going to load gets past the swirling electrons and then finally stops and says "unable to read disc" with black background screen.....then it goes to the dvd movie menu type thing where you can select play or whatever...(weird huh?)
PS2 Original --->no problem...loads fine no freezing....with gta vc either....

PS1 Backup ---> red screen of death
PS1 Original ---> loads fine

DVD movies ---> load fine

It seems as though the chip is doing nothing because I can load a PS1 original even when I'm in ps2 mode(single tap or multiple taps of the reset from standby mode). Please help.....my sanity requires it

any and all suggestions are welcome!

update....
.....somehow now its boot ps1 backups

update 2....
.....sorry to fill up space...I got it working...my laser sucked....tried another now it works...

[Frankieboy]

he he, a lot of magic 3 problems are just laser problems or bad CD-R / DVD-R media.