rustinmyeye's avatar
rustinmyeye
rustinmyeye@rogue.earth
npub1ylqx...9exa
.
rustinmyeye's avatar
rustinmyeye 1 month ago
Trying to figure out this injector driver module from my truck... It died about a year ago, and I just replaced it at the time, but now I want to repair this one for fun. When it failed, one injector bank quit firing the high voltage. The high side control was open. The only obvious damage was a few burnt resistors and transistors. I replaced all the burned parts and plugged it in, but as soon as it started, everything popped again. Next, I pulled the MOSFETs that control the high side voltage, replaced everything again, and plugged it in… this time nothing burned with the MOSFETs removed. One of the MOSFETs (the bad side) shows about 50 V on the gate when it’s supposed to be low. The good one only has around 1.5 V. When the good side fires, its gate jumps to around 98 V then drops back to ~1.5 V. The bad one just sits at 50 V and drops to ground only when the good one fires. So it seems like something is shorting power to the gate of that MOSFET. I’ll have to replace all the resistors and caps again (I shorted something while testing), but once that’s done I want to track down why the gate’s stuck at 50 V. Maybe another shorted transistor or something... Another weird thing with this, is that the MOSFETs are N channel, so they need higher voltage at the gate than the source to fire, but the voktage seems to be lower… I may just be misunderstanding something there, or they need to be installed for the correct voltages to show up.
rustinmyeye's avatar
rustinmyeye 1 month ago
Trying to figure out where that pad connects to.... Forgot to mention that the pad directly beside it, on the other transistor (pad is fine) is also the same l with no apparent trace to where it goes. Been trying to continuity test it but can't find it's trace anywhere. View quoted note →
rustinmyeye's avatar
rustinmyeye 1 month ago
Well... Shit. I'm trying to repair this busted injector driver module for a 7.3L PowerStroke but I totally suck at soldering tiny stuff and ripped a solder pad off for one of the little transistors. Of course its the only pad which doesn't have an obvious trace that I can solder a tiny wire to in an attempt at repairing it. I cannot for the life of me figure out what that pad connects to electrically. Also I discovered the real problem after destroying the pad... A burnt resistor that I traced to the gate of the bank one main power MOSFET. That was the issue all along... a simple easy to replace item. Oh well, I will try to figure it all out and slam new parts at it and cross my fingers.
rustinmyeye's avatar
rustinmyeye 2 months ago
Fixed my Akai receiver! Now I just need to finish replacing some of the caps (already done the power section caps), replace light bulbs for the dials, and the blown filter board transistors. Yeah, I decided I'll go all the way and repair it correctly instead of leaving it bypassed. View quoted note →
rustinmyeye's avatar
rustinmyeye 2 months ago
I hurt my trusty Akai AA-1030 receiver yesterday. Pretty sure I overdrove the AUX input after a mistake in my voice assistant’s Python code cranked the eSpeak volume way too high. It is all distorted and quiet now. :( It survived almost 50 years all original, and for the past 10 years at least it's been on all day. I will repair it though! It is beautiful.
rustinmyeye's avatar
rustinmyeye 2 months ago
Old video i came across from a couple years ago. 🌈🌈🌈 :)
rustinmyeye's avatar
rustinmyeye 2 months ago
At this moment, Black Sails 🏴‍☠️ is my fave show of all time. I loved it. The writing, acting, photography, characters, overall story. I really liked all of it. It is a very exciting show, and well paced I think. The last season I struggled with a bit, but it was mainly just because I was feeling some emotions for the character's hard times, and uneasiness of uncertainty. The audio design and mixing was so good in my opinion. Especially during battle and just general ship noises were cool. I watched it in my shed with big speakers pretty loud. It was very nice. I thought Pirates and a pirate show would be boring. I thought I hated sunny, sandy, wet, ocean, captain, treasure stuff. I felt similar about the sopranos when I first watched that. I went in thinking I didnt care for New Jersey Mafia crap and came out with that show being another favorite. Sopranos has a great soundtrack too which helped a lot. I haven't seen deadwood in years, but I felt similar about that show as well. And more recently, I watched Arcane which blew me away, I just didnt love the second season as much, but still it ends up in my top tier shows I'd say.
rustinmyeye's avatar
rustinmyeye 3 months ago
Made a local #selfhosted voice assistant. Finally got it working good enough to setup in the living room.
rustinmyeye's avatar
rustinmyeye 3 months ago
Followed along with the nordspace test launch in Newfie-Land today, but there was an ignition issue! I love rockets and Newfoundland. Excited to see it fly... whenever. image