74644323
commented
1 year ago BOM for HPCN36 version are uploaded. The key HPCN36 connector was purchased on Taobao. I didn’t find a similar purchase link on mouser, but I found an Alibaba purchase link for this model of connector, which may be helpful to youThe key HPCN36 connector was purchased on Taobao. I didn’t find a similar purchase link on mouser, but I found an Alibaba purchase link for this model of connector, which may be helpful to you: https://www.alibaba.com/product-detail/ACON-SCSI-connector-36P-board-card_1600685566805.html?spm=a2700.galleryofferlist.normal_offer.d_title.7b2769f39Kc52J
Most of the common components such as capacitors and resistors in the BOM table are purchased on the LCSC mall (www.szlcsc.com) and have LCSC supplier part numbers like “C14663”. Usually these components are also easy to buy substitutes on mouser.
The special components that need to be purchased separately are ACON HPCN36P HBT13-36K321 board-type male seat SCSI connector, EXO3 15.974MHz programmable crystal oscillator. the LCSC genuine price of the green ALPS dual B10K potentiometer is too high, so I bought a cheap substitute in taobao.
If the 15.974MHz div/2 EXO3 crystal oscillator is hard to find, you can use a regular 5V 8MHz SMD3225 crystal oscillator instead (although the music may be slightly out of tune). The schematic and PCB layout files can be opened and edited with LCEDA software (the international version may be called easyEDA). You can modify the drawings yourself and replace the components with models that are easy to buy in mouser.
Do you have bill of materials for any of the PCB versions? Finding all parts by yourself and guessing what's needed here is very hard. I would appreciate some list with links where you can buy them, for instance mouser reference links. Also where can I buy the half pitch amphenol 36 pin connector for OPN3LPT? Thanks in advance