Arkanum Studio UK
Hi,So sometimes you have to do that. If you have any Teflon tubing or even vinyl tubing or heat shrink to put over any longer exposed tails of the radial cap you should do that.
Thank for the compliments, but the credit goes to a couple smart guys that were more than helping me. I learned a lot. There really were three main components to the ground mods...localizing all the grounding to each of the channel cards and jack PCBs, eliminating all the ground loops on the channel cards, and completely revising the grounding between the power supply and the frame. Oh and I guess there would be a fourth component, positively bonding all sections of the frame to each other and the PSU chassis to that...it’s kind of a mess from the factory but that wasn’t necessarily uncommon.
No. It’s not about putting them in cooler air; placing them lower in the chassis. That’s completely inconsequential. It’s about allowing heat to escape. If you put them under the PCB it’s like adding a layer of insulation over them. And the heat transmission via a heat sink is orders of magnitude more effective than radiating heat into the air space. The bridges really really really need to be bonded to a heat sink.
Heat kills. Period.
That’s too small. Typically one would use something like 0.01uF for HF filtering.
You’re not literally using fuses there right? Those are light bulbs...fuse style incandescent lamps. I don’t recall if the lamp circuit there is powered by AC or DC, but if it is DC then you have to mind the polarity of the lamps. So verify you’ve got the right type of lamps, that they are all good, and then look in your service manual to verify the lamp power rail type (AC or DC) and if DC make sure you’ve got the lamps oriented correctly as far as polarity.
regarding the bypass caps, i based it on your post which stated you used 0.022uf ceramic caps?
Not sure if MX is different but in MRX they are actually 4 x 15amp 6.3v glass fast blow fuses directly behind the logo which i would assume makes it glow as there is nothing else there other than fuse clamps. I guessed would be on DC but i will certainly check that thanks
Ok so i think i will look for some heatsinks to do the same as you did then.. To clarify, did you literally mount them in same points on pcb but underneath or did you extend wires and mount the recs directly onto rear panel chassis to connect to modded heatsinks, sorry for lots of questions, couldn’t tell from your photos... Appreciate the guidance : )