gomiboy99

TK, I just completed the build today, WOW! It's fantastic, much more so than I was expecting! Thanks for a truly great project. Tim.

I may be mistaken but there seems to be a wiring problem with the ecan wire in the second photo. As the picture is a bit blurred it is not easy to tell.

Check the V1 to V2 upgrade guide in the user manual especially note that PIC18F452 needs to be replaced by a PIC18F4685 User manual here

Mine has just arrived, thanks Tim :thumbsup:

I would like 2 please. PM sent.

Thanks Shuriken, had hours of fun today. It works very nicely on my android phone.

Happy New Year everyone. Have any of these arrived in the UK yet? I am wondering if I need to check at the local sorting office in case the postie failed to leave a card.

Midi out 3 is on the interconnections pdf here You will need to use an opto coupler etc as midi out 3 is at TTL levels.

Only the OUTs work with the core32 running SeqV4. The the green LED on each module should be lit when the power is applied. The red LED should flash with MIDI OUT. Make sure the correct header (J4)on the core is used and that you have the wires the right way around.

The 1*** is correct for a sammich, the SIDs are effectively one stereo SID. You should be able to select the individual SIDs by using the LR selection in the SID editing menu. If you have not done so I suggest you download the SID V2 user guide from ucapps.de. Some patches are quiet on my sammich and some only work on the left channel (drums mainly). If you pull the plug out a bit it shorts the left and right channels together.

At least one problem is solved. I guess the smoke came from the LCD, I think the default negative green display is 5Volt only but it needs a link placed on the main board to short the resistor for the high power display. There is something in the build guide that mentions this.

Cool :thumbsup:

The 74hc165s (sorry typo in my last reply) and 74hc595s are the 16pin dil chips. If the control surface is not working then you may have mixed them up. 74HC595s are for the DOUT part and run the LEDs (IC3 and IC4 on the control surface) and the SIDs (IC2L and IC3L on the main board for the SIDs), the 165s (IC1 and IC2 on the control surface) are the DIN part and are for the control surface. Chances are that the SIDs are ok, they are just not being told what to do if these chips are in the wrong sockets.

Sorry it has been a long day, of course the midi is reaching the core, else no upload of the sammich hex would have occurred. F1 on the control surface should make the sammich play the currently selected patch, the 1*** is highlighted on the LCD when playing. Does this do anything? If all of the voltages etc. are correct then it looks like the sids could be at fault. The only other thing I can think of is possibly you have mixed up the 74hc168s and 74hc595s, I did it but spotted the error before I applied power, as they are the same size. Tim

Good tips, this should be standard practice for any electronics. I use my anti-static gear every time. For those in the UK, Maplin sell wrist straps, 1MegOhm cables and 3 pin mains plugs with an earth stud for the cable. These are also available from Rapid, Farnell, RS and even eBay. The safety tips are VERY important, always use a proper anti-static cord fitted with a resistor. Tim

Hi, you mention channel 3/4, are you aware that the audio out is a stereo jack? The other jack is the audio input. The audio out is the jack closest to the power in. Apart from that, check that you have all of the ICs inserted the right way round, check the midi and voltage jumpers too. It could be that the noise is just the SIDs normal noise and you are getting no midi to the core. I have tried my sammich with a pair of working but very noisy 6581s and it sounds quite similar. I don't like the noise so I have gone back to the 8580s and all is good. Good luck. Tim.

Ok, check ALL connections using a continuity tester, making sure that there are no shorts or breaks in the circuits. Check that the C64 power supply is supplying +5V DC and 9V AC as it should. Also make sure that ALL components are the right way around, the number of times I connected voltage regulators backwards before I learned is unbelievable. There is a fault, you just have to find it. Don't be tempted to look for the fault with power on as this will likely do more damage and make the original fault harder to find. Hope that helps. Tim.

This suggests that the capacitor is reversed or faulty.

I think both of these posts answer the questions. Personally I would rather see all PCBs available from SmashTV, that would mean no one missing out on small bulk orders.

I think you would have to use a midi connection to the SID, I am not sure that the PIC core supports OSC. Even if that is the case that support would need to be added to the SID firmware. Hope that helps. Just spotted your question about patch storage limits, there are 5 banks of 127 patches. I think one may be used for Ensemble storage. Check the user manual here.

It can also be done with Piezo Transducers like this

Check for the SID editor I have it working with my new sammich ok. There are other topics in the SID forum with patches and arps. Are you confusing OSC with the OSCillator menu? Have fun Tim

The capacitor is not doing what it should and is the source of the noise. Change it for a new one.

The power supply Smithy linked to can indeed be opened. It uses standard regulators.

That is what SmashTV's post says.