Passando aqui pra recomendar o episódio “Mil dias de Marielle presente” do podcast Rádio Escafandro. Jornalismo investigativo, científico e altíssima qualidade.
carbon-based lifeform. virgo supercluster
Hi, I'm a developer, lover of art and freedom (more). I write mostly about technology and pixel art.
Passando aqui pra recomendar o episódio “Mil dias de Marielle presente” do podcast Rádio Escafandro. Jornalismo investigativo, científico e altíssima qualidade.
Problem: No sound coming out of the speakers. In the beginning the sound would come and go. Then the sound stopping became more frequent until being completely mute.
What is working: The headphone output is working fine. With it I could test that the auxiliary input (front panel) is working fine too. Left and right RCA inputs are working. Left and right left and right 6.35 mm (1⁄4 inch) inputs are working.
From the outside the only problem seems to be the speaker.
The cause: After some research I found that this is a common issue for Mackie CR3 Studio Monitors. The root cause seems to be the amplifier chip TDA7265. This chip works fine initially but after some months or years it starts malfunctioning sending a mute signal (output 5) to the board which mutes the speakers. This mute signal should only be triggered when a headphone jack is inserted however in the malfunction the signal is sent continuously.
Solution: cut the ping 5 with small cutting pliers. This stopped the mute signal but also removed the feature of muting the speakers when headphones are plugged. As this worked for me I could replace the TDA7265 chip (around $5) but I will not do that now.
Alternatives: here are some alternative solutions that did not work for me but I read that worked for some.
Conclusion: Don’t buy these speakers. I got it in a bundle deal with some audio gear I bought about three years ago. Speakers should not fail in only three years. The design of this thing is flawed. It heats too much and components start to fail. The amplifier chip seems to be a common issue but when researching this I found switches, I also saw switches, diodes, capacitors, and resistances failing. Even after I fixed it I was hearing some cracking noise in some frequencies.
Supplementary materials:
Adapted from Vypyr Tips/Tricks/FAQ at the Peavey forums.
With this patch you can use thes Vypyr VIP-2 as a regular amplifier with other gear inputting directly to it.
#!/bin/bash
set -euxo pipefail
See full explanation at Safer bash scripts with ‘set -euxo pipefail’ by Tom Van Eyck.
In this pixel art rendition I replaced the the characters of Super Mario Bros. for female characters becoming Super Maria Sis. in the tittle.
Mario became Maria just because it’s a single letter change and it works well. Marissa would also have worked.
Luigi became Ligia. Other candidates were Lucia and Luiza. In Italian the feminine name for Luigi is Luigina. Luigi is one of the many Italian forms for the german name Ludwig, which in French becomes Louis. So Luise would have been another candidate. In Portuguese Luís, Luis, or Luiz and their feminine version Luisa, Luíza. I choose Ligia because of the “G” sound.
It’s possible to create a patch over the original NES game to make this art become a real game. There is a lot of examples on how to do that on this article from Female-Characters NES ROM hacks.