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coderofsalvation / electribe-emx-esx-reverse-engineering

projectplaceholder to organize all possible research concerning 'freeing-the-electribe'-attempts
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Korg EMX-1 SDRAM IC30, IC34 #6

Open archont94 opened 7 years ago

archont94 commented 7 years ago

Hi, I found broken Korg EMX-1 in dumpster. After disassemby I found that it have broken voltage regulator, fuse and desoldered SDRAM chips (IC30, IC34) . In datasheet I can see that it is 64Mbx16, but could you give me full name and brand of this part? I would like to find replacement and maybe, with a lot of luck I will be able to repair this machine.

Regards Arch

abraxa commented 2 years ago

Geez, where is your dumpster? I wish I'd find an EMX in mine :(

Are you still interested in the info?

gabgabe commented 1 year ago

Hi folks, I also have a broken EMX-1 has received 220V on 100V transformer. I bypassed the 3.3v circuit with external DC-DC regulator, and found a short on IC34. I'm waiting for the SDRAM arriving from china, as mentioned in the wiki, I bought these chips https://it.aliexpress.com/item/1005004956817035.html EM638165TS 64Mbit TSOP-54

arriving in 20 days I hope. I will keep you updated about my repair. if there is any other broken chip it will be fun.... I'm still trying to figure out how to play with flashing boot chip. I would buy spare chips and experimenting there, but still need to understand few basics on how to flash NAND flashchips correctly. block size could be a problem. anyone has more info to teach me? KISS

PS: thankfully I found this github page. Which gave me energies to keep trying repairing the EMX-1. I hope I will learn more info and experience so I can share with you everything and help the community. My goal is to being able to flash every chip, making the main pcb repairable.