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suprise suprise, Black screen, Messiah2 V4
suprise suprise, Black screen, Messiah2 V4 –
Yet another PS2 with black screen. Okay, here's the story, I really wish that this thread could finally be a guide solve for this problem.
My friend brought me his V4 for modding. Now, I've done quite an amount of very precise sodlering, laptop motherboards etc. so I thought that modding a PS2 couldn't possibly be that hard. All wen't well, I did as instructions told me and finally, powering up the machine gave me black screen and blinking eject light. --> WTF?
After doing some research on the subject at various forums, I rewired the whole thing, making it neat and perfect. Checking all solderpoints, you know, the usual stuff you do in a situation like this. I especially checked BIOS wiring and re-did it.
Power on: another black screen. But what's bothering me is that PS2 seems to work perfectly fine apart from the fact that there's no sound, nor image displayed. When reseting, I can see that some kind of signal is actually being send to the TV, since there's a slight effect followed with resetting. In addition, the CD drive works fine, it ejects, spins the disc and all that stuff. Even my test game, GT3 seems to start loading. And yes, I'm testing it with an original game, not a backup disc.
I disconnected the wires from the chip, wrapped them in tape, so that they won't touch each other... Nothing. Didn't affect the situation at all.
Lucky for me, I had a previously broken V5 into which I replaced the laser from this V4 and got it working fine. So no trouble anymore about my friend being without his PS2. Note: These are Euro-spec. machines.
Now, I'd still like to continue to fix this V4 too. What I'd like to have is the locations and purposes of the fuses, onboard chips etc. The fuse points I've already found and lost again ^__^ So I'd appreciate if someone would post the pic once more.
If the location map for onboard chips is impossible to find, I'd like to at least know where the video/sound controlchip is located. There are also a few things I'm curious about in those instructions, but I'll post about that later. I'm now off to resolder the whole damn thing once more. Maybe remove all the wiring too to test it. And ofcourse check the whole board for slodersplash, and tin bridges.
--2mE // Finland
PS:Sorry for bad English -___-
check the bios chip again if you have or haven't already. you almost defineately made a bridge on the pins and dont even know it, since most of the time the bridges are very low and under the pins. use a continuity tester (hopefully one with a buzzer), and check continutity between the pins you soldered on and the ones next to them that you didnt have to solder to. just because it looks ok doesnt mean it is (my first no swap modchip install ever was a magic 3, and i bridge the O wire with the pin next to it, and didnt find the bridge for almost 3 monthes). if you dont have a buzzer on the continuity tester, than the reading you get between pins should not be 0 ohms, it can be almost anything but 0. also, check the cd dvd controller where you soldered the wires. if you bridged one of those pins, then all i can say is good luck trying to get those off.
as for fuses, i doubt its a fuse. i personally have never blown a fuse from a bad modchip attempted. Just pretty much suspect the bios chip in the absolute first instance.
check to make sure no wires are being pinched from the metal case