Rebuilding a Sony PVM 1344Q CRT from 1992

One aspect of running a CRT repair shop is having a stock of random parts salvaged from machines that are unrepairable. I have a large “graveyard” of CRT parts from mostly Sony Trinitron PVMs. Recently I traded for a rough Sony PVM 1344Q from 1992. This monitor was filthy and had a number of issues. In short, the PVM needed a replacement bezel, shell, cleaning, and numerous other parts replaced and repaired. The CRT tube was replaced with a new tube in 2001, but it was not installed properly and produced a terrible image. The deflection yoke will need to be reseated and adjusted. You can see a full inspection of this monitor here: Is this Monitor trash?! | The Sony PVM 1344Q CRT Inspection – YouTube

I searched through my “graveyard” of used Sony PVM parts and found a shell, bezel and plenty of other donor parts from a Sony PVM 1342Q that was donated after the tube and mainboards failed beyond repair.… Read the rest

Shipping Large CRTs

It’s 2022 and the biggest challenge facing CRT enthusiasts remains servicing and maintaining their highly valuable analog display sets.  Nowadays there are not many CRT service shops around, and if you do find one more than likely they will not be in your area.  This leaves you with a difficult decision.  Should you pack up your CRT in your vehicle and drive 500 miles each way to the nearest CRT shop?  That is the safest option, but it takes lots of time and leaves you with the costs to travel.  It puts a lot of wear and tear on your vehicle too. 

The other option may be scarier to think about.  Should you ship your CRT to a shop?  This sounds easy and will save a lot of time, but it will cost a lot. … Read the rest

Martin Hejnfelt joins the Podcast

Robotics engineer by day and CRT hacker by night, Martin Hejnfelt joins the Cathode Ray Podcast.  He discusses his newest projects, such as the BKM Controller Replacements for the Sony BVM A series monitors.  He also goes over all of his past CRT projects such as the Sony BKM 68x and Sony BKM 129x clone cards and the JVC RGBS hacks he has performed and documented on his blog site.  We talk about Martin’s passions that drive him to work on electronics, and how everything started with the Commodore 64.  We also talk about CRT nostalgia, good beer, and odd toilets. 

To see Martin’s work, please his website:  immerhax

CRP with Martin Hejnfelt: BVM Input cards, CRTs in Europe & Japanese toilets w/ Martin Hejnfelt – Cathode Ray Podcast #12 – YouTube