NetYaroze hangs at boot screen

Hello,
my recently bought yaroze has a problem::banghead:
it hangs at the sony logo boot screen, it doesn't reach the playstation logo screen nor the menu it should go to without a disc in the drive...
If you have any suggestions, please let me know.

Thank you,
unclejun

 

Have you opened it up? Could be a bad modchip inside.......

 

modchip? As in modded console?
It's a yaroze, i don't see why people would have it modded.
It's not been opened up, and the warranty seal is not broken.
Could it be the laser, or is it worse?
Is the laser on the yaroze the same model as the one on retail units?

 

The NetYaroze can play imports but no backups. So it wouldn't be unusual if someone had installed a modchip.

as far as I can say the NetYaroze seems to have the same parts as the SCPH-100x series. And the laser of those models is very poor. But you should see the menu.

Maybe you can reach the menu when the cd drive is open?

 

A modded NY is actually better than a real debug, assuming you have a good chip installed.

Why?

The debug is going to be fixed to a single video type (NTSC or PAL). Trying to play a PAL game on a NTSC unit results in a screwy picture.

A NY automatically switches the video output based on the disc, so you always get a proper image.

A modded NY is the one unit that will truly play any disc and output the *proper* video signal.

-hl718

 

I agree, modded yaroze is the best for multi-reigon development. Otherwise you'll need both an ntsc and a pal debugger. On top of that, you can open the sticker with a hair dryer if you're worried about the seal.

Modded yaroze aren't uncommon either.

From what you describe, it sounds like someone put in a doggy modchip, or one of the chip's pins may have come loose... either way, if it were the spindle motor (one common problem with that model) or the laser (the most common problem with that model) you would still be able to get to the menu.

No matter what, it sounds like there is a problem internally, so you're most likely going to have to open it anyway.

 

Well, the yaroze hasn't been modded, and i can't reach the menu even with the drive open.
Thanks for the hair dryer tip, i will use it soon!
It was in working order before being processed by the postal service, damn postman i hate you!

 

Thanks i'll check that soon.

 

Anyone think it could be as simple as the access card?

 

No the access card works, i tried it on my ps2 and the yaroze boot disc finds it, and the yaroze should work as a retail ps1 with games...

 

Modded YAROZE is not good!

Please fellows: don't mod rare collectors pieces.

A chipped SCPH-750x does the same job and
leaves the YAROZE mint.

It's 100% a damaged PCB if it does not go to the menu.
I have had a SCPH-1000 from a friend. The PCB was
bent just little by accident during a laser swap operation.
Now it hangs on the white screen and boots only if
you bend the board on a certain position.

 

Some of us don't have these things just for collecting. A modded SCPH-7501 will run a pal game in NTSC, which is a problem if you're designing pal games. A modded yaroze is the only system that will run a pal game in pal, an ntsc game in ntsc and play burned and retail discs. It's a programmer's tool, i say use it to the best of your abilities. I'd rather see one get modded and used then sit on a shelf somewhere, but to each his own, i guess.

 

Really? My SCPH-7502 (now damaged) ran NTSC games in NTSC and PAL games in PAL.

If not, you can easily fix the color issue by joining two points on the mainboard.

 

Mikrologika is right. Consoles deal with RGB, not NTSC/PAL. The console (actually the video encoder circuit external to the system) dictates the video carrier, the game ONLY dictates the speed/resolution. You can do 50 ("PAL") or 60hz ("NTSC") development on ANY console provided you have a multisystem display. The only difference between NTSC50/60 and PAL50/60 to the system is the screen height and width.

 

That's not good i presume...

 

I don't know about exact PCB revision (PU-8) of yaroze,
but you could revive the Yaroze by finding exactly similar PCB
of same region (SCPH-300x) and put Yaroze's CD controller and BIOS
to the retail PCB using a hotair station. Of course, check if
other important chips are same.

Then noone can know the difference and your Yaroze
works like a "real" Yaroze again.

The Yaroze hangs a white logo screen? Does it make distorted
sound? Like always repeating sample?

If yes, try to open the Yaroze, power it without laser unit
an push the PCB just little when booting and see if
problem is away. If it's solved by this "pushing", then
your PCB has broken trace or no contact on some IC leg,
just like my friends japanese SCPH-1000 which also has
some PCB damage.

Problem here is: All european (PAL) SCPH-1002 are PU-8
so we cannot find replacement board from more "common"
region like SCPH-1001 (NTSC/UC)

Please, try it (but be VERY careful with pushing PCB!) and
report results.

 

I already tried to save my friend's SCPH-1000:
We desoldered and resoldered the RAM chips with new solder,
but problem was not solved by this.

 

i remember

hello^^

i am not sure,but the problem may be a bios problem (looks like the console is unable to access the menu

I will say the same thing as micrologica and a bit more

something you can try is to disconect everything (including controler port and lens) but the power supply and see if it change anything.
if not the problem is definitly on the bord. (I have seen a ps1 not booting with the controler port connected so maybe...)

try booting in that way.

another thing to boot the console Without the nails. this may sometimes cause problems.

one more thing, try to lunch it in another case (a normal ps1 not the tyaroze one). a damged case may also cause short-circuit

try everything listed here and tell us ^^

PS: lens for yaroze and debug are the same ones as the scph-1000 scph-1001 scph-1002

 

Since you reach the Playstation logo screen, at least your BIOS isn't dead. Try to boot the Yaroze using a Pro Action Replay (PAR) / GameShark device in the expansion port. The BIOS gives control to the PAR before it reaches the logo screen rutines. Actually the first thing most of these PAR devices do after a warm boot is to save a copy of the frame-buffer into system memory for use with the frame-buffer viewer tool. Try a couple of PAR ROM replacements, as some them don't work with all BIOS versions.

As for laser replacements for the Yaroze and all the Debugging Stations: You can use a PSone KSM-BAM laser if you just replace the top cover with the top cover of the laser in the Yaroze. The original KSM-AAM and KSM-ADM lasers are harder to find in good condition.

Good luck troubleshooting.

CF