Hi guys.
I have a VA7 UK PAL Sega Saturn motherboard, it has a Sanyo CD drive assembly.
This is the one which has the "PC - TRAP" device.
Before attempting the mod chip mod, I fitted a UK/US/JP multi-region switch, tested it and it worked perfectly.
I then fitted a 50/60hz switch, tested it and it worked perfectly.
I have three mod chips, they are the dark blue colour, I got all three in a trade with a friend, he made no guarantees as to them working. Two of them look like they have corroded chips on them. I tried the one that looked *perfect* apart from some bad soldering on the AB pads and 0014/0019 pads.
Firstly I tried bridging AB, and using 0019, connecting to the Sanyo laser array through the PC TRAP assembly - no boot up sequence goes straight to CD player, says checking disc, two green squares on screen, after it has checked, nothing happens, the play, etc controls are greyed out, and the disc does not spin at any point during bootup or after the disc has been checked.
Then I tried using 0014, and the above setting, exactly the same result.
Then I tried the above using a different mod chip, the same result.
I tried the original perfect condition mod chip, removed the PC TRAP board and connected to the mod chip directly - same result !
I tried soldering a wire to the A pad, and then taping the end to the chip leg as described by someone else here, and also setting the mod chip to 0019 and still the same result.
Ive tried wiggling the chip about - same result.
So Ive got one chip left to try, been at this for a few hours, seemed that other peoples Sanyo CD arrays would at least spin, and play music CDs with the mod installed - mine doesnt spin and will play nothing at all.
The funny thing is, I left the sodding PC TRAP out, connected the CD drive directly to the main board, and the unit worked fine - playing UK, US and JP games.. just as it does with the PC TRAP connected, and no mod chip.
Beats me what this PC TRAP is for.. I'll email Sanyo, but dont expect a reply! !
Does anyone have any suggestions, its really annoying and I dont even know if these mod chips are any good.
The guy that got his to work by taping to the leg of the chip underneath the Sanyo CD unit - did you put the wire from "A" on the mod chip - to this leg on the Sanyo chip underneath the CD board? - its not clear in the posts, nobody mentions and the pic doesnt work..
Cheers !
<_<