mattias Posted November 20, 2005 Report Share Posted November 20, 2005 HiMy SID is not making any sounds at all. First it made som but so low volume you could barley hear it. Whats going on here? What voltage is recomended for J3 audio out? All others seem ok !!There is not even background noise comming out! Could it be a broken SID? I have tried all night to get it right. But it just does not make sounds. Quote Link to comment Share on other sites More sharing options...
SMIDIRIN Posted November 20, 2005 Report Share Posted November 20, 2005 Do you hear a startup sound ? ?Checked your connections/soldering ? [mainly between core & SID] ...use a multimeterHave you upload patches ?keep trying! but also if you have another sid chip give it a go. Quote Link to comment Share on other sites More sharing options...
mattias Posted November 20, 2005 Author Report Share Posted November 20, 2005 What start up sound? Have not heard it. And now there is no MIDI comunication? The voltages was bad for a short time (like 3) where it should have been 5 and 12. Maybe its the CORE. I am almost mad now. Must sort the MIDI before anything else.Havent uploaded any patches whats the use (no sound)? The SID should make sounds when playing via MIDI keybord right? Quote Link to comment Share on other sites More sharing options...
TK. Posted November 20, 2005 Report Share Posted November 20, 2005 I just have written a walkthrough which should give you some hints how to get the box running: http://www.ucapps.de/midibox_sid_walkthrough.htmlBest Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
mattias Posted November 21, 2005 Author Report Share Posted November 21, 2005 OK GREAT!!By the way how easy is it to fry the SID?? Hope it still works.Looks like its the CORE not working, I am going toorder a new set. The solders looks like dog poo! I have another up and running since its going to be 3 SID:s inmy synth. Quote Link to comment Share on other sites More sharing options...
mattias Posted November 22, 2005 Author Report Share Posted November 22, 2005 I see aloot you have had problems with no sound here. Did you get it right in the end ????My worst fear is that I killed my SID. Or that it was dead from the start. Is no sound an indicator that the chip is dead?Ill just keep trying to get it going. What else could be wrong? Some static noise should come out if its dead right? Quote Link to comment Share on other sites More sharing options...
mattias Posted November 22, 2005 Author Report Share Posted November 22, 2005 :D Got the startup tune now! But its way to low. Preamp to max on my mixer and channelstrip to max? Still something wrong??? What canit be?????? Quote Link to comment Share on other sites More sharing options...
illogik Posted November 22, 2005 Report Share Posted November 22, 2005 hi,preamp to a max ???i know that my sid is not as loud as my other synths but this seems wrong to me (i amplify it a tiny bit more than other synths)i would just go thru the walkthrough step by step; and write down results; after this it would be easier to ask/answer questions.btw dunno if this makes sense but..have you checked the transistor in the output stage of the sid (right type, right orientation), i guess this is for amplifying the signal.cheers , marcel Quote Link to comment Share on other sites More sharing options...
mattias Posted November 22, 2005 Author Report Share Posted November 22, 2005 The transistor is not the BC547, its a CBC547 can i get som help on the pinout since I think its the problem now??? I am getting nowere on myown..... ??? Quote Link to comment Share on other sites More sharing options...
mattias Posted November 23, 2005 Author Report Share Posted November 23, 2005 Maybe I should try to clock the sid from the core? Remove to clock from the sid board. Would it help? I am givving it a rest today..... Havent got any other ideas! ??? Quote Link to comment Share on other sites More sharing options...
illogik Posted November 23, 2005 Report Share Posted November 23, 2005 Maybe I should try to clock the sid from the core? Remove to clock from the sid board. Would it help? dontthink this will solve your problem; bout the transistor; you could try and find a datasheet, but i couldn't (is it really a CBC547?). BTW did you buy a kit from mike/smash?>> if so the parts you got will be fine, your problem will be something else.of course it could be a fried SID; but there is no quick way to test; you could put it in a working C64 and try a sid tune from a game or sosorry i can't be of more help..goodluck, marcel Quote Link to comment Share on other sites More sharing options...
mattias Posted November 23, 2005 Author Report Share Posted November 23, 2005 Yeah. its wierd. but the part is printed CBC not BC..... And I cant find anything about CBC... like there is no thing like it???The startupsound is like a low rapid pip pip pip pip, then there is no response on midi??? Getting new parts and som new SID:s. I dont have a working C64 now only sidchips..... :( But clocking from the CORE solved a simular problem for someone here at the forum..? I will try tomorow. I could also try ordering new CB:s and fit them. Now i must hunt down some SID chips... Later! Quote Link to comment Share on other sites More sharing options...
pwx Posted November 23, 2005 Report Share Posted November 23, 2005 Yeah. its wierd. but the part is printed CBC not BC..... And I cant find anything about CBC... like there is no thing like it???I think it´s an BC547C, even if there is printed CBC....Just try another BC547C,.... but I don´t think, that´s the problem...Check all connections again,again,again,.... touch them with your soldering iron..... and also be shure, that every part is stuffed at the right place on PCB,.. in the right way.Greets,pwx Quote Link to comment Share on other sites More sharing options...
mattias Posted November 24, 2005 Author Report Share Posted November 24, 2005 :o :o :o :o You will never quess what it was. Its solved now. My phono jach was not working. Replaced it and sweet sound at last. Quote Link to comment Share on other sites More sharing options...
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