DChdmi/DCDigital issue

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SQloud
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DChdmi/DCDigital issue

Post#1 » Fri Apr 02, 2021 7:41 am

I think I messed up my DChdmi/DCdigital installation :oops: and ruined a perfectly fine Dreamcast. Controller port A is not working anymore, the others do work, and all the black colors on screen are messed up, there are blue vertical stripes visible on all black surfaces. The sound and the rest of the picture is ok. I can't get the OSD to show up, is this only possible from port A? I tested for bridges on the video chip, I can't find any. I checked the wires going to 601, 602 and reset. The reset wire is soldered to the resistor next to the testpad, the testpad went to my soldering iron.
Any help would be greatly appreciated.
If only the controller port would work again, that would be great.

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DarkSynbios
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Re: DChdmi/DCDigital issue

Post#2 » Fri Apr 02, 2021 8:24 am

Hello!

Maybe this help you to fix it.

https://www.reddit.com/r/dreamcast/comm ... r_digital/

SQloud
shadow
Posts: 8

Re: DChdmi/DCDigital issue

Post#3 » Fri Apr 02, 2021 12:18 pm

Thank you, found that fix too.
Checked all the wires, already soldered the reset wire to the resistor, could the wire gauge be to small?

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DarkSynbios
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Re: DChdmi/DCDigital issue

Post#4 » Fri Apr 02, 2021 1:59 pm

Possible yes, I had other issues and fixed it with another big wire.

SQloud
shadow
Posts: 8

Re: DChdmi/DCDigital issue

Post#5 » Sat Apr 03, 2021 1:41 pm

Changed out all the wires with a larger gauge, soldered a new fuse and cap on the controller board. Still nothing changed to port 1, the other three work but the first won't.

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DarkSynbios
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Re: DChdmi/DCDigital issue

Post#6 » Sat Apr 03, 2021 2:06 pm

Try this, when you put controller on port 1 try to play with till hear a sound from vmu.

SQloud
shadow
Posts: 8

Re: DChdmi/DCDigital issue

Post#7 » Sat Apr 03, 2021 2:09 pm

With VMU installed it beeps when i turn the Dreamcast on with controller in port 1. So there is a connection.
Last edited by SQloud on Sat Apr 03, 2021 4:14 pm, edited 1 time in total.

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DarkSynbios
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Re: DChdmi/DCDigital issue

Post#8 » Sat Apr 03, 2021 2:11 pm

Did you try with another controller?

SQloud
shadow
Posts: 8

Re: DChdmi/DCDigital issue

Post#9 » Sun Apr 04, 2021 2:46 am

No, i only have one controller.... But I have an arcade stick in storage, will try it asap.

SQloud
shadow
Posts: 8

Re: DChdmi/DCDigital issue

Post#10 » Mon Apr 05, 2021 1:54 pm

The arcade stick won't work ether. Is there any way the DChdmi could interfere with the controller port?

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