The Secrets of Sound Blaster 2.0: CMS or OPL2? Here you get both!

The Sound Blaster 2.0 was a sound card I always wanted to have. Unfortunately, I never got one of those iconic cards. In today's video, we are going to look at TWO of those cards which I pulled from a pile of scrap PCBs! They are safe now! This sound card requires -5V to operate properly. Unfortunately, most ATX power supplies do no longer provide this voltage. Luckily, there are multiple solutions - and a new one, which will be introduced in this video. Finally, we will restore the C/MS (Creative Music System) of this sound card by programming a GAL16V8 chip. CMS chips are available here: https://www.youtube.com/@bitsundbolts/community ▬▬▬▬ *PCBWay* ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Sponsored by PCBWay: 🔸https://pcbway.com/g/lF253I PCBWay provides full feature custom PCB prototyping services, 3D printing, and much more. Check them out using my referral link above and get a 5 USD welcome bonus when you sign up as a new customer! My contribution to the Community Project Space at PCBWay 🔸https://www.pcbway.com/project/member/?bmbno=0140E301-54A5-47 The nameless voltage mod (direct link): 🔸https://www.pcbway.com/project/shareproject/_5V_Mod_for_ATX_Power_Supplies_976271e3.html ▬▬▬▬ *Affiliate Links* ▬▬▬▬▬▬▬▬▬▬▬▬▬ L7905CV Voltage Regulator: 🔸https://s.click.aliexpress.com/e/_DeEvyKh Tantalum Capacitors Type B (35V1UF, 35V2.2UF): 🔸https://s.click.aliexpress.com/e/_DB0U0PT ATX 90-degree power line adapter: 🔸https://s.click.aliexpress.com/e/_DnEzf97 SAA1099P Stereo Sound Generator: 🔸https://s.click.aliexpress.com/e/_DdzE3ed GAL16V8D Programmable AND-Array: 🔸https://s.click.aliexpress.com/e/_DE9lcc5 Titanium Alloy Tweezers Professional Repair 🔸https://s.click.aliexpress.com/e/_Ddjx3jb 7-45X Continuous Zoom Stereo Trinocular Microscope 🔸https://www.aliexpress.com/item/32880372287.html AliExpress: Mechanic Solder Mask 🔸https://s.click.aliexpress.com/e/_Ddyj7W7 (this is the exact item I am using) TOWOT Solder Wick from Amazon: 🔸US: https://amzn.to/3SyHrDB 🔸DE: https://amzn.to/3HFpCgJ 🔸UK: https://amzn.to/3OeIVRZ Solder Mask from Amazon US: 🔸https://amzn.to/43K8KOy (6pcs) 🔸https://amzn.to/470ISRw (4pcs + UV light) DE 6pcs: 🔸https://amzn.to/3Dr49WU 🔸https://amzn.to/43Av6lC 🔸https://amzn.to/44XIbGB FNIRSI HS-01 Soldering Iron 🔸https://s.click.aliexpress.com/e/_DE45RR1 Flux for easy soldering 🔸https://s.click.aliexpress.com/e/_DFkc3YL InfiRay P2 Pro Thermal Camera 🔸https://xinfraredx.com/products/infiray-p2-pro-thermal-camera?sca_ref=4242204.29WR4PdRCs&sca_source=YouTube ▬▬▬▬ *Support Bits und Bolts* ▬▬▬▬▬▬▬▬▬▬ Patreon:🔸https://www.patreon.com/BitsUndBolts Bitcoin: bc1q2dvf9flf78lam33qjj9w9xgvfxdgre7g9x3rmw Twitter/X: https://twitter.com/BitsUndBolts Facebook: https://www.facebook.com/bitsundbolts ▬▬▬▬ *Other references* ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ GAL16V8 Software and JED file: https://www.dropbox.com/scl/fo/bd7z2dcahzvu7966vhlae/h?rlkey=l4r7rw438a6btftj6b3rbp59s&dl=0 @necro_ware Voltage Blaster GitHub: https://github.com/necroware/voltage-blaster @philscomputerlab Voltage Blaster (Phil's website): https://www.philscomputerlab.com/voltage-blaster--5v.html Suntac's reverse-engineering: https://www.vogons.org/viewtopic.php?f=5&t=66361 @necro_ware's reverse-engineering: https://www.youtube.com/watch?v=XLBTt2mYMvA ▬▬▬▬ *Timestamps* ▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 00:00 Intro 01:37 First test 02:42 Voltage consideration 03:25 Voltage Blaster 05:03 An alternative 06:34 Second test 10:07 The Secrets of Monkey Island 12:05 What could it wrong? 13:19 Creative Music System 15:28 Programming GAL16V8 17:29 Testing C/MS 18:45 I have some chips left! 19:27 Conclusion