Basic Midibox Sid V2 Troubleshooting

MIDIbox SID
1

Hi everybody,

 

I’m new on this site but I would like to have some help for troubleshooting the Midibox Sid V2 that I’ve just builded.

 

It’s a basic unit with only a core module and an audio module using the 8580R5 chip.

 

So far the communication is good between the computer and the Midixox Sid but there is no sound coming at the output.

 

I’ve run the mbsid_interconnection_test_v2 but it’s seem there is no communication between the core module and the audio module since the voltages on the Sid chip don’t change. 

 

Any help would be greatly appreciated.

 

Thank you!

 

Nick

2

Hi,

 

I do not know about your pcb sources. 

 

  • I remember, on the Core board from Mike, I soldered 2 additional isolated wires for communication purposes,

an additional cable between the CLK input of the SID and Core::J7:SO/PIC Pin #17 at least.

 

http://ucapps.de/mbhp/mbhp_core_v3.gif

 

  • You need to recheck the connection cable between the Core module and the Sid module, too

 

http://ucapps.de/mbhp/mbhp_8xsid_c64_psu_optimized.pdf

 

Regards,

Janis Reinholds

3

Hi,

 

i bought my boards from AVI Showtech Smash TV.

 

I connected the two boards as follow:

 

Core J10         Audio J2

Vd                    Vc

Vs                    Vs

SO                   SO

SC                   SC

MU                  MU

CLK                CLK

RC                   RC

 

There is a MD pin one the J10 connector of the Core board but none on the J2 connector of the Audio board.

 

I’m I missing something?

 

Thanks!

 

Nick

4

Hi Nick,

 

please check this schematic again: http://ucapps.de/mbhp/mbhp_8xsid_c64_psu_optimized.pdf

 

There is no SC->SC connection

But there is a MD->MD connection…

 

Best Regards, Thorsten.

5

Hi,

 

Apparently, the MD pin of the core has to be connected to the SC pin of the audio module like described here:

http://www.midibox.org/dokuwiki/doku.php?id=midibox_sid_faq#how_do_i_connect_the_sid-module_to_the_core-module

 

I uploaded the V2 hex file and now the Sid is alive and I have sound at the output.

 

Thank you for you help!

 

Nick

6

Hi,

 

I have another question that might sound stupid but how to save a patch in the bank stick with the CTRL editor?

 

Thanks!

 

Nick