To mutch power on core.......???

[illogik]

Than i have one more question because i was thinking of using the PSU from my C64, can i measure the 9V AC comming out of the adapter? Couse i can find the 5V DC but not the 9V AC?

you have a digital multimeter? put it on AC  ;) (this symbol; ~)

or read this topic:

http://www.midibox.org/forum/index.php?topic=4850.0

and if you didn't know allready; use this circuit; it has a real good signal to noise ratio

http://www.ucapps.de/mbhp/mbhp_4xsid_c64_psu_optimized.pdf

cheers

[Freaksomnia]

thanks for that illogik how stupid of me......... i got it....

[TK.]

The files (>700k, very good picture quality) can now be downloaded here:

http://www.midibox.org/users/freaksomnia/PICT0002.JPG

http://www.midibox.org/users/freaksomnia/PICT0003.JPG

http://www.midibox.org/users/freaksomnia/PICT0005.JPG

http://www.midibox.org/users/freaksomnia/PICT0010.JPG

Here some smaller versions with remarks:

1: the core module has some bad solderings (loose connections), which could lead to failures. There are also missing solderings (e.g. 33pF cap below crystal). I would propose to solder each pad again, the soldering guide in the Wiki gives some useful tips

2: the legs of the caps should be cutted, otherwise they can cause a short circuit which can damage the PIC!

3: this seems to be a bad ground connection directly at the 78xx - it can lead to the wrong voltage. Here the same: just solder the pads again, it will help

And also cut the long cap legs, the danger for shorts is too high

Best Regards, Thorsten.

P.S.: I don't want to bother you, but do you allow me to bring the two pictures into the wiki in order to explain other newbies, for what they have to take care about?

[Freaksomnia]

thanks for posting my pictures TK and thanks for the tips i will be correcting them a.s.p. ( i meen yesterday ) o yeah ofcourse you kan use the pictures.... happy to help out with my bad soldering........

Ill let you know it it works.

Thanks Geert