Help with PS2 modchip install (installed, but not working)

So while I'm waiting for l_oliveira to send me some Matrix chips for my early model PS2, I thought I'd take the Modbo 4.0 chip out of it and install it in another PS2 I have. I've got it all installed, but I'm having issues with it. When I turn it on, I get the blue and green lights, but the console doesn't start up. The fan doesn't spin up, and the tray doesn't eject. Any clues what the issue might be? All the wires feel secure, except for point H, which has come away from the board a few times. I'm not sure why, but it doesn't seem to want to solder to this point, I've soldered wires to contacts just like this one many times before, and never had issues like this. Is there an alternate point for point H?

 

Alternative points depend on motherboard revision - you should know this

No motherboard revision, no help!

 

My bad, Bad_Ad! It's a V9. From the looks, there's multiple traces that lead to this point, so there's gotta be some other point that it connects to. I was thinking I could solder directly to the trace leading to the point, but the trace is so small, I'm worried I'd cut it while trying to scrape the film off of it.

Does anyone know what the symptoms I've described indicate? Last time I had modchip troubles, someone was able to tell right away where the problem lay.

 

Bad install matches most of those symptoms. Perhaps a few burnt out.

I'd try removing it entirely and seeing if it still works.

 

I don't know about alternative points but I might be able to help. Here is a link to a PS2 50001 I modded (I think yours is a 50002?) https://www.dropbox.com/sh/4qdw4s4xl1w8iny/ofaFhl4GCM under PS2 v9 Success, what I did was place the chip and then strip a bit of wire then measure how much was needed and trim till it was perfect

Also I would advise against using an exacto knife or similar for the vias, this is where a fiber glass pen comes in handy. Hopefully you can get this sorted out :encouragement: also make sure that you do the Romeo Mod on the LA6508. If you don't know what that is its lifting pin 17 and connecting it to 5v, my pics also show that.

http://sksapps.com/diagrams/ps2/Modbo4/V9-usa.jpg is the version I used.
http://sksapps.com/diagrams/ps2/Modbo11/PAL-V9.jpg this looks like its your board, only thing is the "H" connection but other than that its the same locations. Although I have heard with Modbo 4.0 the H is needed anyways, or was that for Australian PS2s? Correct me if I am wrong on this.

I would also keep the wires from crossing each other and as close to the board as possible, that's why I measured the wires and accounted for this, everything worked on the first time. Except anti-mod psx games because of the chip I guess. Anyways not sure if I can post this but this is where I got mine from http://www.ebay.com/itm/Modbo-4-0-/151072059178?pt=LH_DefaultDomain_0&hash=item232c98af2a

Good luck fireaza,
HaloSlayer255

P.S. Before I forget, this might be of help to ya http://forums.gamewinners.com/forums/showthread.php?t=513070

 

Hmmm, I see you've used the alternate solder points on the other side, I might give that a try. I also see you had originally used the contacts near that... Little chip like the instructions said, but changed your mind and soldered directly to the chip. Any reason for that? Yeah, I think I really need to get a fiberglass pen, that would probably have made soldering to the points on the other side much easier.

 

Sorry this is a little late, I used the contacts near the bios IC as a marking point so I wouldn't lose track of where the wires go to. I also did that to keep them a little bit shorter, and also less likely to be damaged. An example is the bios leads vs copper traces and tension on those traces. However I did the vias for the mechacon because there would be almost no tension on those wires. I probably could have soldered to the DSP chip but didn't want to chance it. I practiced on an old CD Drive's 208 QFP IC Chip and some kynar, with rosin paste flux from RadioShack, my iron I used http://www.radioshack.com/product/index.jsp?productId=2062730 and just filed the tip down till I got it the right shape. However this can greatly reduce the tips life, lol which is why I keep spare tips and unfiled ones.

Good luck fireaza,
HaloSlayer255

P.S. This might be what you need for the fan issue http://psx-scene.com/forums/f20/ps2-fan-not-working-33619/, also I would check the LA6508 and the laser assembly to see if the focus coils are still good. I found a troubleshooting database I used a while ago on a v7 http://www.wtkasa.com/psx/database.php

 

I did a V12 (PAL Australian) the other day with a modbo4, followed the PAL diagram and it wouldn't play backups, connected H and it worked.