nILS

Nah I guess, $20-50 will get you all the equipment and plans.

I don't think they will... Once the prices actually start to get really ouchy it'll inspire a lot of people to make 99.9987% perfect clones in FPGA/...

Moved.

Yay :frantics:

Also, try KICAD :whistle: (...which I hate even more than Eagle)

I have a uni license :)

[x] use the correct processor/MIOS combination. Also, remove the PIC for a test and see if the D0-D3 lines stay high.

I tried pretty much everything that was available 2ish years ago. And... well... I am still using eagle (which I don't really like). Claw your way through all of them, that's prolly the best thing to do. Make a core module or the likes in every app, that'll give you enough time to figure out how stuff works and whether or not you like the app :D

I used "PCB CAD" as a generic name for "printed circuited board computer aided design" and not a product name. The "professional" thing that 4pcb is pushing is called "Pulsonix" and costs 1599€. I haven't tried "PCB Artist" which apparently is "the best free layout software". Not really a claim to fame if you look at the other free options ;)

It's the new standard in PCB CAD! At least their website says so. *cough* Oh and the full version is 1599€.

Fixed the link, moved the topic (tought we might as well keep it) and banned the poster :thumbsup:

That's normal if you try to change to a bankstick that is not there/not responding.

Those are digital pins - why would you "listen" to what comes out of them? There's no audio before the YACs. Hmm. 1) Remove the LCD for testing (as it shares pins with the OPL3) 2) Check for shorts on the core>opl3 connection 3) Recheck the wiring (http://ucapps.de/mbhp/mbhp_opl3_interconnections.pdf) 4) Shorten the cable between core and opl module

1. A SID draws a max. of 100mA on the 5V rail, so other than an input voltage that's too high, there's no reason for the vreg to become hot. Why are you using an extra 7805 for the sid in the first place? 2. Yes, the VCAs don't necessarily completely cut off the signal

Reread. Noone said it did. Have a cookie everyone.

1) Don't install the v1 app on a v2 system running on PIC18F4685s. That won't work. A diesel engine doesn't like running on regular gasoline either. 2) You should have measured all the voltages BEFORE connecting it and stuffing the ICs. Unplug the ICs and check the voltages first. The LED current limiting resistors are not necessary for the inputs to work. 3) That IS an error. The firmware should only be cloned on startup when the shift button is held down - your CS is obviously doing sth... Disconnect the CS. Remove the IC. Do voltage tests. Get the baseboard *completely* working. Then tackle the CS.

My guess would be that you forgot to assign a channel to the track you're playing or the likes. Since I have no idea about the mbSEQ I'd suggest you give the manual a shot ;) That sounds like a solder bridge or a broken cable. So your best shot is to recheck the wiring and soldering of those two buttons - a multimeter in continuity mode may be very helpful :)

The missing components (C14, C19, C13, R13, R10, R12, R15, C25, C26, C29, R11, R14, C33, R20, R21, R22, R23, C34, R3, C11, C22, C21, C12, C30) are only relevant for the second YAC (see http://ucapps.de/mbhp_opl3.html). Leaving them out will not cause any problems. Make sure to check for bridges further away from the SMD chips as well - better to be on the safe side :) If you're positive that you don't have any bridges, remove the opamps and see if you get an audio signal @ IC3:10 and IC3:14. That'll help to tell us if the problem occurs before or after the opamps.

Oof. * Check continuity between all adjacent pins everywhere...

That's all the parts you need (if the components on the bottom side of the board are soldered correctly and there's a jumper wire under IC3). * Got a pic of the underside? * Are the voltages ok (especially the bipolar supply voltage for the OPAMPs)?

Hehe I've been thinking about making a discrete SMD clone of the SID, but but but... :hmm:

If you're willing to take the risk I bet you could buy some dead chinese IC factory and have a go ;)

Might help to know if you're just looking for the case or for a working C64 :)

Happy B-Day to the new year :)

http://www.avishowtech.com/mbhp/