Antonio Posted November 15, 2005 Report Share Posted November 15, 2005 Hello,I'm trying to build a MIDIbox SID. I already assembled the Core and the SID modules.The core seems to comunicate through MIDI ports with MIDIOX, so I update MIOS_v1_8 andI load MIDIBOX SID_v1_7a.And now the problems start.1) The LCD doesn't show anything. To be more precise: the back lite is on but it is not possible to read anything.I checked the connection between LC and Core module and everything seems OK!Since I'm tryng to use a 4*20 LCD I changed main.asm file for 2*40 LCD. Is it correct?With MIDI-OX I sent F0 00 00 7E 40 00 0D 02 00 0B 0A 00 00 00 01 00 00 00 00 F7and MIDI-OX received F0 00 00 7E 40 00 0F 04 00 F7I expecetd to receive F0 00 00 7E 40 00 0F 00 02 F7Where is the problem?2) SID MODULE: no sound only a small noise that could due to a bad 50Hz filter.I run the interconnection test and everything is fine.I'm using the C64 PSU modified (but not optimized)Which other test can i do to solve the problem?Any suggestion is welcomeCiaoAntonio Quote Link to comment Share on other sites More sharing options...
illogik Posted November 15, 2005 Report Share Posted November 15, 2005 hi,1) The LCD doesn't show anything. To be more precise: the back lite is on but it is not possible to read anything.just to be sure, did you adjust the trimpot for lcd-contrast on the core module?Since I'm tryng to use a 4*20 LCD I changed main.asm file for 2*40 LCD. Is it correct?i dont know if this is possiblecheers, marcel Quote Link to comment Share on other sites More sharing options...
Antonio Posted November 15, 2005 Author Report Share Posted November 15, 2005 Hurrah!!!!my SID is working and my LCD is displayng the following characters: A 1 C 1 1 ------------Internal Patch.Is it ok???? Quote Link to comment Share on other sites More sharing options...
Antonio Posted November 15, 2005 Author Report Share Posted November 15, 2005 The MIDI SID is working but after a while of nice sound there was a reduction of volume and an increase of noise.I don't know what happened. Maybe something too hot, maybe some bad connection, maybe.....Is there anyone that want to suggest me something?RegardsAntonio Quote Link to comment Share on other sites More sharing options...
pwx Posted November 15, 2005 Report Share Posted November 15, 2005 The MIDI SIDÂ is working but after a while of nice sound there was a reduction of volume and an increase of noise.Be shure that all capacitors are stuffed in the right way, perhapse this will solve your problem... ... just an idea :Dgreets,pwx Quote Link to comment Share on other sites More sharing options...
Antonio Posted November 15, 2005 Author Report Share Posted November 15, 2005 Thanks!Another problem could be some bad connection!Tomorrow i will check!What about the display?It shows the following message:A 1 C 1 1 ------------Internal Patch.Is it correct? Quote Link to comment Share on other sites More sharing options...
TK. Posted November 15, 2005 Report Share Posted November 15, 2005 Yes, thats correctIt will change, once you press the exec buttonBest Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
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