#crtrepair — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #crtrepair, aggregated by home.social.
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Okay, so atm my theory about the curbside Trinitron is... complicated? It appears I'm not the first person whose been inside of it... well, maybe, but if so, I really don't know if they just opened it then got confused/spooked, or if they attempted to adjust anything (would be nice to believe that they messed with SCREEN, but made it darker instead of brightere, but I doubt it lol).
Here's what I do have to go on: on the RF input (not that I have anything connected, so just a dead channel), it's really dim, but if I turn the lights off, I can tell that there's snow, so it's not just pure black. The channel is not nearly full brightness, but it's bright and clear enough to see in a lit room.
On the AV in, the screen is basically black and depending what I have connected, I either get occasional red points, or right now, I have a LaserDisc of Black Rain playing, and the Paramount logo card with the mountain and stars is actually visible (but all red). If I leave it playing, sometimes it's basically all black for minutes, and other times I can make out a shape or skyline, but always in red. It's consisteent though. The same piece of content displays the same red dots/edges/figures/Paramount title card. It's not like it's intermittently all black or displaying a red image, it's more like it only displays the red past a threshold of brightness.
What's interesting is that in TV mode, the green OSD is the only truly visible thing, and then in AV mode, I'm getting red. No green in the image. Which leads me to believe that there's something up with either the jungle IC, or jungle IC adjacent passive components.
I'm not going to just assume that means there's no issue with the tube, but the fact that I'm getting green OSD, but no green in the image, is telling. Blue is... another thing. Idk yet, lol.
It is entirely possible I'm in over my head, but I wanted to at least figure out if the issue could conceivably on the board and not in the tube before I decided to potentially spend any amount of money on this. ...
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1084 Monitor Repair at World of Commodore 2025
#Commodore #C64 #C64OS #WorldOfCommodore #CRTRepair #Commodore1084 #RetroComputing #OneMaybeTwoRetro
https://theoasisbbs.com/1084-monitor-repair-at-world-of-commodore-2025/?fsp_sid=5590 -
1084 Monitor Repair at World of Commodore 2025
#Commodore #C64 #C64OS #WorldOfCommodore #CRTRepair #Commodore1084 #RetroComputing #OneMaybeTwoRetro
https://theoasisbbs.com/1084-monitor-repair-at-world-of-commodore-2025/?fsp_sid=5590 -
1084 Monitor Repair at World of Commodore 2025
#Commodore #C64 #C64OS #WorldOfCommodore #CRTRepair #Commodore1084 #RetroComputing #OneMaybeTwoRetro
https://theoasisbbs.com/1084-monitor-repair-at-world-of-commodore-2025/?fsp_sid=5590 -
1084 Monitor Repair at World of Commodore 2025
#Commodore #C64 #C64OS #WorldOfCommodore #CRTRepair #Commodore1084 #RetroComputing #OneMaybeTwoRetro
https://theoasisbbs.com/1084-monitor-repair-at-world-of-commodore-2025/?fsp_sid=5590 -
1084 Monitor Repair at World of Commodore 2025
#Commodore #C64 #C64OS #WorldOfCommodore #CRTRepair #Commodore1084 #RetroComputing #OneMaybeTwoRetro
https://theoasisbbs.com/1084-monitor-repair-at-world-of-commodore-2025/?fsp_sid=5590 -
1084S Switch Repair: Retro4u Tackles a Stubborn Commodore Monitor Fault
#Commodore1084S #CommodoreMonitor #CRTRepair #Retro4u #Commodore64 #Amiga #RetroComputing #MonitorRepair
https://theoasisbbs.com/1084s-switch-repair-retro4u-tackles-a-stubborn-commodore-monitor-fault/?fsp_sid=4656 -
Commodore Ranger Monitor and the Dream Amiga 3000 Rebuild
#Amiga3000 #CommodoreMonitor #CRTRepair #BlueSCSI #RetroComputing #AmigaRestoration #ClassicComputers #WHDLoad #SCSI #AmigaHardware
https://theoasisbbs.com/commodore-ranger-monitor-and-the-dream-amiga-3000-rebuild/?fsp_sid=731 -
Commodore Ranger Monitor and the Dream Amiga 3000 Rebuild
#Amiga3000 #CommodoreMonitor #CRTRepair #BlueSCSI #RetroComputing #AmigaRestoration #ClassicComputers #WHDLoad #SCSI #AmigaHardware
https://theoasisbbs.com/commodore-ranger-monitor-and-the-dream-amiga-3000-rebuild/?fsp_sid=731 -
Commodore Ranger Monitor and the Dream Amiga 3000 Rebuild
#Amiga3000 #CommodoreMonitor #CRTRepair #BlueSCSI #RetroComputing #AmigaRestoration #ClassicComputers #WHDLoad #SCSI #AmigaHardware
https://theoasisbbs.com/commodore-ranger-monitor-and-the-dream-amiga-3000-rebuild/?fsp_sid=731 -
Commodore Ranger Monitor and the Dream Amiga 3000 Rebuild
#Amiga3000 #CommodoreMonitor #CRTRepair #BlueSCSI #RetroComputing #AmigaRestoration #ClassicComputers #WHDLoad #SCSI #AmigaHardware
https://theoasisbbs.com/commodore-ranger-monitor-and-the-dream-amiga-3000-rebuild/?fsp_sid=731 -
Commodore Ranger Monitor and the Dream Amiga 3000 Rebuild
#Amiga3000 #CommodoreMonitor #CRTRepair #BlueSCSI #RetroComputing #AmigaRestoration #ClassicComputers #WHDLoad #SCSI #AmigaHardware
https://theoasisbbs.com/commodore-ranger-monitor-and-the-dream-amiga-3000-rebuild/?fsp_sid=731 -
New blog post! It's a Samsung CRT TV/VCR that rolled out of the swamp of eBay. Some kids shoved Christmas ornaments in it. And Starburst candies. And a... Pokemon card? That's not what's wrong with it, though!
https://www.leadedsolder.com/2025/11/18/samsung-cxj1352-crt-tv-bad-convergence-bad-eeprom-fix.html
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Boy, I wonder why this TV rattles when I pick it up? #crtrepair
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The Mr. Nello smells a little funky but he is making a pretty good raster, and picking up local radio stations to boot.
Not sure about this antenna jack, though. RCA cables won't fit, the outer part of the port is not deep enough. I'm gonna try to find the manual and figure out what kind of jack this is. #crt #crtrepair #sony -
Hmm. This set might need just a little bit of love. #crtrepair
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those who have worked on CRT AC/Main circuits: has anyone ever successfully converted a 240V UK monitor to 120V US? is this even possible?
scenario: about 15 years ago, an incredibly gracious person from the UK sent me their Amstrad PC/2086. both the PC and the monitor are wired for 240V, and appear to use non-switching PSUs.
rebuilding the PC to use a standard north american AT PSU is simple, and takes about 10 minutes.
the monitor, on the other hand, is unexplored territory for me. I've never worked on the input side of a CRT before. i've done plenty of flyback and cap replacements, but never anything to the AC circuit.
any amount of thinking out loud *from people who have direct experience with the HV side of the circuit* would be appreciated!
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Finally drilled out the rusted lower screws on the Sony Jackal, and it's looking not as bad as I feared inside. Keep in mind that doesn't mean "good." Anyone know how to re-scale an FM tuner? #retrostereo #crtrepair #sony #sonyjackal #1970s
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those with extensive CRT repair experience (edit: please, for the love of sweet jebus, don't reply if you are just guessing and haven't worked on a tube)
i picked up this Sony KV-8AD11 a while ago and it has been sitting on the repair pile. while i've recapped and restored a couple of dozen arcade & tube tv's, diagnosis isn't my strong suit.
what's causing the green hue running along the left side? it remains there even after the chassis has warmed up, and switching between RF and composite input makes no difference.
interestingly, the green hue does *not* show up on snow/static screens. is this something adjustable via the internal potentiometers, or will it require some PCB work?
my thanks 🙏
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New blog post! I found a multisync CRT that does a really good job of showing the Northern Lights. Thing is, I eventually got bored of that and decided I would like it to show computer stuff instead. Follow along as I do a not-so-quick recap and then build some adapters for my various e-waste!
https://www.leadedsolder.com/2024/03/19/nec-jc1404hma-multisync-3d-crt-repair.html
#retrocomputing #crtrepair #nec #pc6001 #apple2gs #kicad -
Wahoo! My digital RGBI adapter works on the MultiSync 3D. Enjoy this terribly lit picture. #crt #crtrepair #pc6001 #retrocomputing #retrocomputer #kicad
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I don't really know what I'm doing, but I'm going to see if I can puzzle out how to do a composite mod on this old Citizen clock-radio-TV. So far I've found the IC that strips the I/F but not where it outputs. Datasheet hunting time. Maybe it needs a date with the vacuum cleaner too. #crtrepair #crt
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I got the #NEC #MultiSync 3D working! It took 87 caps, nearly all of which failed (at least) an ESR test. I am still not super happy with the image quality, but we'll see what adjustments are available to clean that up. Next stop: RGBI! #retrocomputers #retrocomputing #crt #crtrepair #68kmac
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Wish I had noticed these cracked pots before placing my second Digi-Key order for this monitor. Time to take some measurements and go shopping. #retrocomputing #retrorepair #retrocomputer #nec #crt #crtrepair
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New blog post! NEC loved the Apple II so much that they made one of their PC-6001 CRTs cosplay as an Apple II, complete with Motter Tektura logos. Too bad it doesn't work - let's fix it. #retrocomputing #crt #crtrepair #retrocomputers #apple2 #pc6001 https://www.leadedsolder.com/2023/11/14/nec-jb-1260-crt-monitor-repair.html
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I can't imagine this cured silastic, which is so rock hard that I couldn't even cut through it and had to desolder and pry out both components, is providing all that much vibration damping anymore. #retrocomputing #retrocomputers #crt #crtrepair #psurepair
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The quest to understand why my #NEC MultiSync 3D is all screwed up begins! First is this odd section of greasy dampness on the bottom board. Did it come from the power supply? Did it come from the neckboard? Neither? Both? #retrocomputing #crt #crtrepair
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Maybe I should throw in some hashtags? #TVRepair #CRTrepair
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I bought a Sony Jackal 300 TV/radio/tape player. Most of this won't work outside of Japan, but that hasn't stopped me in the past. #crt #crtrepair #retrotv
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Hey, look! Another freshly working CRT saved from the landfill. This one has a shorter persistence than the Monitor III, but you can sure tell what computer it’s supposed to go with. #nec #crt #crtrepair
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New blog post! This is maybe my favourite post to date. It combines a new kind of repair (thanks CJ!) with a capsule history of NEC corporate structure in the 1980s. Everyone loves a CRT: https://www.leadedsolder.com/2023/06/20/pc-tv-151-crt-repair-pc6001-pc6601.html
#retrocomputing #pc6001 #pc6601 #retrogaming #crt #crtrepair #crtgaming -
The disassemby of my #commodore DM602 went smooth so far. Waited for the safety equipment to arrive before I did that. Made a parts list for the needed caps yesterday and will see where I can order them best at the weekend. I am a bit excited to tackle this, to be honest. My first CRT repair attempt - yeah!
#crtrepair #workbench -
Got myself a pair of insulation gloves to counteract my fear of high voltages (some CRT work planned for next year). I look like a superhero gone totally wrong wearing them. Hooray! 😅 #Electronics #Tinkering #CRTrepair