Search found 3 matches
- Mar 9th, '22, 00:20
- Forum: Yocto² Hardware
- Topic: Hardware issue needs a new board/serious bodge [Fixed]
- Replies: 5
- Views: 17642
Re: Hardware issue needs a new board/serious bodge [Fixed]
Hi there, For the 4049 you have to use the one from the mouser BOM that is a Texas instrument CD4049 UBE . https://eu.mouser.com/ProductDetail/595-CD4049UBE Cause this Hex inverter is powered with the +15V rail to drive the 4051 and has to be unbuffered Idem for the 4051 , it has to be this one htt...
- Jan 31st, '22, 01:44
- Forum: Yocto² Hardware
- Topic: Hardware issue needs a new board/serious bodge [Fixed]
- Replies: 5
- Views: 17642
Re: Hardware issue needs a new board/serious bodge
Welp, I fixed it. So, the CD4049 has been entirely replaced by a set of MOSFET's for each channel (2N7000, be wary of the OnSemi datasheet giving wrong pin definiteions) soldered up in a deadbug fashion in order to give the CD4051 address lines the correct logic sequences and voltage levels. I now g...
- Jan 30th, '22, 07:23
- Forum: Yocto² Hardware
- Topic: Hardware issue needs a new board/serious bodge [Fixed]
- Replies: 5
- Views: 17642
Hardware issue needs a new board/serious bodge [Fixed]
Personally, I'm quite thankful that so much work went into such a large board, and such a beautiful case for this project, but upon firing my Yocto 2 up for voices test, nothing was getting through. Upon investigation and probing, I've found a grievous issue with the hardware for sending accents to ...