frndo
Junior Member
Posts: 98
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Post by frndo on May 19, 2023 3:00:44 GMT
Hi! unfortunately I just realized that my MM DIVIDER has broken. They turned on all the division leds at the same time and then they didn't turn on again. I bought it a little over a month ago, and shipping took a long time. I tried other power cables and it doesn't work, I just noticed that the chip (I think the multiplexer) gets very hot. Any idea what it could be? I live in Latin America and thinking about sending it for repair is quite an odyssey! I know how to weld, if there is any DIY solution I would appreciate it! It worked perfectly when I bought it...it's a sad day!
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Post by dizzeesatchel on May 19, 2023 7:30:13 GMT
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Post by robertlanger on May 19, 2023 9:09:00 GMT
Hi frndo, indeed we have a problem with one batch of the MMDIVIDER modules; the output shift register chip seems to be faulty and causes exactly this behaviour. We will send a new module out to you right away! Alternatively, you could replace the 74HC595 shift register, if you are not afraid of SMD soldering. You could do it without hesitation; we definitely don't have the "the user has disassembled the item, so warranty is void" style ;-) In any case, no worries; we will get it fixed! |
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Post by robertlanger on May 19, 2023 9:10:30 GMT
The reason is in fact a faulty chip; this is a really rare case but here it's reason, almost 100% sure. |
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Post by pt3r on May 19, 2023 9:32:52 GMT
This reminds me of this video of an electronics repair guy who wabted to fix an old EHX pedal and needed a specific BBD chip for that, so he happens to have a batch of modern alternatives lying around in his parts drawer, only to discover that those were fake chips that did not even work like the chip it claimed to be. I you happen to have encountered a faulty batch of multiplexers then that's very frustrating for us end users but luckily your module design is not at fault.
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Post by tIB on May 19, 2023 9:44:29 GMT
Ah, Roberts here - I was about to say get in touch but he might be busy right now as I've not heard from him in a while... Robert - you got mail!
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Post by dizzeesatchel on May 19, 2023 9:56:57 GMT
The reason is in fact a faulty chip; this is a really rare case but here it's reason, almost 100% sure. Great that the problem has been identified! So frustrating when the fault is in someone else’s component, but good news overall! |
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frndo
Junior Member
Posts: 98
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Post by frndo on May 19, 2023 15:41:41 GMT
Hi frndo , indeed we have a problem with one batch of the MMDIVIDER modules; the output shift register chip seems to be faulty and causes exactly this behaviour. We will send a new module out to you right away! Alternatively, you could replace the 74HC595 shift register, if you are not afraid of SMD soldering. You could do it without hesitation; we definitely don't have the "the user has disassembled the item, so warranty is void" style ;-) In any case, no worries; we will get it fixed! Thank you very much for your answer robertlanger! Unfortunately I can't find the Chip in my country (I'll keep looking for it). I will contact you by mail / private message to see if you can send me the module. Thanks again. |
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frndo
Junior Member
Posts: 98
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Post by frndo on May 19, 2023 15:42:28 GMT
Thank you! I had not seen this thread, when I bought it and the MM DIVIDER is vital in my setup! |
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