Fixing up a CRT Monitor - Philips CM8833 Mk2 Flyback failure

Thanks for watching I hope this helps some of you out, and injures nobody. Please be careful. Links to parts can be found in the video description and if you enjoy what I do and want to lend your support then head over to www.patreon.com/RetroManCave where you will get all videos 1 week early and without adverts. Thank you! Neil - RMC

I want to point out that a broken flyback sometimes shows in an atypical way. I had a case where there was no noise and it was still building up some charge in the tube, but it was still dead. Also, when replacing the flyback, you should also replace the horizontal output transistor (HOT) and the snubber capacitor connected to it, because it's often a broken HOT that leads to a dead flyback, and on the other hand it's often a broken snubber capacitor that destroys the HOT (or broken solder joint on either of them). Otherwise, you might end up destroying your new flyback transformer.

Thank you Neil. Now, I've never been one for TV or CRT repair, but I have watched videos on CRTs, and nobody has explained the function of the flyback transformer as clearly and precisely as you in this video. Thank you!

I must have replaced hundreds of those Philips flybacks and power switches. A lot of their small TVs used the same items. The replacent switches never lined up, always had to remove the metal from the old one. I always wondered why Philips made the flybacks with the screen and focus on the wrong side. It made no sense. Both need adjusting live to get rid of the retrace lines properly and focus properly. You did a great job. On the neck board, I never had a tool for that. Always a screwdriver, plyers and patience to get the darn thing open 🙂

I wish I'd found your channel sooner! I spent the last couple of years learning to repair CRT's. It's great fun... after living a life of being terrified of everything inside one. They are actually pretty simple to work on! And it's a lost art! Took me a long time to find even a couple really good CRT repair books...

OMG! Neil! Almost exact same story as yours, happened to me few yrs ago. I went to buy an extra Amiga to have one for extra parts. Checked local ads, found one for cheap, no picture. I sat in the car, drove uptown, I enter that living room and a total shock!!! It was the Limited Edition (Stefanie special edition) + mint CM88333 + a box full of floppies all included in that price. The lady had no idea what she had. Something like 20 quid. I completely restored that Amiga, installed a NOS keyboard (German edition to make it fully legit). Later i soldered in 512 kB of RAM from a spare motherboard, so now it is 1MB chip RAM. Now just to install a battery somehow to get that clock up and running. I wonder do i need to build some custom jumper so that Amiga "knows" it has a battery since the expansion slot is vacant.

I learned something. I always assumed that the high voltage from the flyback transformer was used for shooting the electrons at the screen but your explanation makes sense. The flyback doesn't connect to the electron guns but rather the CRT and even the word flyback describes what you said.

Brilliant to see this monitor again! I had one back in the 90s for my Amiga, it went on to become the monitor for my PlayStation! Work your Magic Neil!!

Brilliant to finally see someone do a video on these Philips monitors, cause over the years i've had 3 of them that have developed this same exact problem. I gave up on them thinking it was a major power supply issue, so it's a great to finally find out the actual issue, solution and where to get the parts. Ironically i'm yet to have a faulty power switch on any, but I know it's a very common thing to fail.

I remember getting a shock off a crt a long time ago... it really f*cking hurt! It was a rented tv from radio rentals (there's one for the kids) To tune it the whole back had to be removed to access the small tuning knobs and of course this had to be done while turned on. So there I am standing in front of the tv giving it a reach-around to twiddle it's knob so I can tune in my Commodore C16 (we were poor, this reply is best with "in the ghetto" as it's soundtrack) and my forearm brushed something very live indeed. I really don't recommend it... I've had a few 240v shocks over the years but that was really nasty. Although finding out how awfully shit my new C16 was turned out fairly painful as well

I love your technical terminology "long plastic tool that a TV repairman has" ;) More CRT fixing is always welcome here. :)

Excellent work Neil... my college days came flooding back...

Great video mate! It actually irritates me that 1 person disliked it. Keep up the good work, CHEERS!

Dude, you are a god. I literally was waiting for someone to do this exact repair. My 8833 MK II has been waiting patiently for three years to be repaired. This is the perfect video for a Christmas project.

I've changed a few flybacks in my day with arcade monitors and always hated desoldering them. I can see the desoldering tool is really helpful.

I've been repairing a faulty dirt cheap GB for solid 3 hours now, and my hand hurts from holding the solder iron. Time to sip my co- i mean tea, and enjoy this show. :P

Years ago I attended a computer maintenance course at my local College. I remember one guy, who was old enough to know better. Thought he would see what happens if he switched the PSU on his PC to 110 volts. The loud bang that proceeded scared us all half to death. Then when the lecturer opened the CRT he decided to poke a screw driver around all the innards after we were warned on the dangers of CRT screens. Luckily nobody died. It was definitely the most exciting course I had ever been on 😀

Can we just stop and contemplate Space Ace - if I heard right - protecting his "manhood" from the "Infanto Ray"?! :D

my toshiba 21 inch crt tv just turned 30 years.Only Flyback replacement and again it is alive . long live crt.

11:40 Reminded me of Hugh Dennis. "What's this? It's got a good beat!"