I figured out exactly what's wrong with my Toshiba CRT TV (20AF41)

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Adrian's Digital Basement

Adrian's Digital Basement

Күн бұрын

Пікірлер: 518
@jamesdye4603
@jamesdye4603 Жыл бұрын
Saving old CRT televisions and monitors has become a mild obsession for me because they aren't making new ones, and any insight into keeping them working is greatly appreciated.
@JonnyMudMower
@JonnyMudMower Жыл бұрын
They still make new ones you can order them from China
@ForTheStyle
@ForTheStyle Жыл бұрын
​@@JonnyMudMowerThe plastic case and other components may be newly manufactured but the glass tubes are either from recycled used sets or are new old stock.
@JonnyMudMower
@JonnyMudMower Жыл бұрын
@@ForTheStyle whatever lol they have thousands of new old stock tubes and all the components and case are new so who cares , it’s a new tv with a 1 year warranty , there is people making new tubes but they aren’t available to the public or your paying big time for them .
@kvmoore1
@kvmoore1 Жыл бұрын
Chances are these (CRT TVs/monitors) will never be made again. I wonder if any of these that are still fully functional and in good condition 20-30 years from now will be worth a lot of money because of their rarity. Just a thought.
@rittol2365
@rittol2365 Жыл бұрын
​@@JonnyMudMowerplease tell me where, greatly appreciated if u know
@mrnmrn1
@mrnmrn1 Жыл бұрын
While this solved the problem, there's probably still at least one fault. The voltage was sagging about -1.2V- 1V before, now it's sagging about -1V- 0.6V, which is still a lot for a 5V rail. The 5V VCC of the controller is sourced from a simple pass transistor+zener diode regulator, which is not a great performer usually. The raw 8.9V input is filtered by a 470uF 16V (C531) capacitor. I'm almost certain that C531 has high ESR, and probably undersized in capacitance. The same 8.9V rail supplies power to a 7805 as well, which is switched by a transistor, and has an other 470uF capacitor (C529) on its input, and a 1000uF on its output. The voltage sag on the AT+5V VCC rail during power-on is most likely caused by the high inrush current when the switching transistor connects the discharged 470uF capacitor to the same 8.9V rail, and the 1000uF on the output of the 7805 also contributes to the high inrush current on the 8.9V rail during power-up. I would replace C531, C529, and would also probably change the value of C531 from 470uF to at least 680uF or even 1000uF. It does not feel right to switch a completely discharged 470uF capacitor on a live, unregulated rail that is filtered only by an other 470uF. A significant amount of voltage sag is inevitable on the rail, due to the inrush current. *EDIT* correction: the voltage sag is about 0.6V after the repair, and it was like 1V before the repair. I wasn't paying attention that the 5V level is not aligned with the grid. Thanks to @Michael Thomsen for pointing this out. 56:17
@jwhite5008
@jwhite5008 Жыл бұрын
Yes! Exactly! Not sure how Adrian missed it. Well, I'm not 100% sure if it is C531 or something else but 1V sag is most definitely NOT ok, it will likely get into clicky mode after a while. I'd say at least try checking if one of the power switching transistors is marginal as well.
@c0rpse1
@c0rpse1 Жыл бұрын
@@jwhite5008 he was thinking of sissy hypnosis
@rarbiart
@rarbiart Жыл бұрын
My bets are on C531 too.
@russellhltn1396
@russellhltn1396 Жыл бұрын
Yes, C531 is doing the heavy lifting of being the first stage filter for the switching power supply. Those usually fail first. I would double check it. And I agree the voltage sag is excessive even if the TV is still working (for now).
@nikelquint
@nikelquint Жыл бұрын
@@c0rpse1 bruh lmao
@blakebechtel5192
@blakebechtel5192 Жыл бұрын
I am likely one of the only people who watched this video on a Sanyo 25" from 1997. Great video!
@uomoartificiale
@uomoartificiale Жыл бұрын
Your troubleshooting skills are off the charts! It was very instructional following your reasoning through the schematics and the testing of the components.
@Gannett2011
@Gannett2011 Жыл бұрын
Two repairs for the price of one! I was really surprised that just cleaning the heads would clear that video picture up. Great video as always!
@chucku00
@chucku00 Жыл бұрын
When dealing with old magnetic tapes (VCR, tape recorder, reel to reel) this type of problem will be getting more and more common than before : when 20 or 30 years ago (when the tapes were still recent, except for rally bad quality tapes) you have to use the equipment for several dozens of hours to get slightly dirty tapes, it now take only one faulty tape to entirely clog the heads. I think the same kind of problem can happen too with floppy disks too.
@ronnybkk1
@ronnybkk1 Жыл бұрын
Great vid Adrian!! Thailand was a big CRT manufacturer in this time period. I could still find brand new tubes and chassis at the electronic market back then. Now I come across some FBT and other spares from time to time. Because of the weather conditions CRT are still widely used here. LCD tend to develop issues with the polarizer after a few years, most commonly known as the "vinegar syndrome". Nothing beats a good tube, especially in all its RGB glory :-)
@EmeraldHill-vo1cs
@EmeraldHill-vo1cs Жыл бұрын
Yeah i'm in oz and have my 27 inch samsung crt running nonstop fa 8 years now. Its aprox 25 yrs old. Skin tones beat my flatscreens anyday.
@paincreatesfame
@paincreatesfame Жыл бұрын
I could be studying for uni or doing my job orientation but here I am watching an hour-long video about a CRT lol I love it
@MicheIIePucca
@MicheIIePucca Жыл бұрын
I can't get enough of these "troubleshooting" videos. Thank you!
@TheStevesterX
@TheStevesterX Жыл бұрын
Holy Crap! I used to own that exact same model. Bought it back in 2000 because I wanted a set with Component Inputs (Y Pb Pr) for my PS2. God, did it make the PS2 look freaking good.
@jastervoid
@jastervoid Жыл бұрын
Same, but I still have the set (and the PS2)
@fattomandeibu
@fattomandeibu Жыл бұрын
The composite/component thing is kinda alien to me. Every TV I owned was either RF only or RF and RGB, sometimes S-Video and I've been using RGB since the Sega Mega Drive(SNES doesn't support RGB out, sadly) and Amiga days. I couldn't imagine playing PS1 or PS2 through RF(or composite, which doesn't look much better), unless you had a TV from like 1982, or a VERY(I mean like sub-£100 new) cheap portable which was RF only.
@JaneTheDoe-id2vx
@JaneTheDoe-id2vx 9 ай бұрын
Does it really make a huge difference compared to composite???
@BH4x0r
@BH4x0r 6 ай бұрын
i think most analog inputs were awful on tv (like the cinch ones) because if i used a audio+tv signal to scart adapter (passive) it always looked way better for some reason
@Subgunman
@Subgunman 11 ай бұрын
Might be a prime candidate for that replacement board from your newer video.
@JamsterJules
@JamsterJules Жыл бұрын
I have no interest in repairing TV's but found that very entertaining. Love your vids!
@Jody_VE5SAR
@Jody_VE5SAR Жыл бұрын
The VCR issue was just the icing on an excellent cake, Adrian!
@The-truth-is-valuable.
@The-truth-is-valuable. Жыл бұрын
Reading some of the comments below, it seems that the "fix", was just a temp plaster on a problem still lingering. However, many aspects of this repair were still a valuable learning experience. Thanx Adrian.
@AppliedCryogenics
@AppliedCryogenics Жыл бұрын
I like the golden uterus sticker on the side of the set.
@charisma7268
@charisma7268 9 ай бұрын
Lmao 🤣🤣😂🤣🤣🤣🤣🤣🤣🤣🤣😂😂🤣😂😂😂😂🤣 😂😂🤣😂😂
@Cherijo78
@Cherijo78 Жыл бұрын
One of the lessons I am taking from this is to always put CRTs like this on a power strip and physically switch it off. Simply being plugged in and unused is clearly creating stress on the components even though they're not doing a whole lot per se. Over time that will cause them to wear out more.
@m1geo
@m1geo Жыл бұрын
Doing this probably puts more stress on the parts, as they have to survive the inrush current into all of the caps every time...
@jordan9610
@jordan9610 10 ай бұрын
​@@m1geoI have a Samsung GX CRT that flickered on and off due to a brief power outage. And let me tell you guys; the noises that it made when turning off and back on were NOT pleasant! 🤣 Always use the TV's power button!
@Nixima81
@Nixima81 Жыл бұрын
Boy this brings back memory's from the days remember my 32" Panasonic i had before upgrading, Those things are not friendly on the old back :)
@BlueXonar
@BlueXonar Жыл бұрын
Fun fact, worldwide sale of CRT televisions actually PEAKED in 2005, despite some markets being in heavy decline in favour of LCD by that time! You could still buy them in some countries past 2010. There are actually still one or two CRT manufacturers in existence, but they make equipment exclusively for airline and military purposes.
@bitelaserkhalif
@bitelaserkhalif Жыл бұрын
You can still buy them "new" here New board, reconditioned tubes from monitors etc. Some even has dvb t2!
@swardmusic
@swardmusic Жыл бұрын
​@@bitelaserkhalifwhere?
@bitelaserkhalif
@bitelaserkhalif Жыл бұрын
@@swardmusic Indonesia
@scratchpad7954
@scratchpad7954 Жыл бұрын
​@@bitelaserkhalifDoes this imply the existence of new old stock NTSC picture tubes?
@bitelaserkhalif
@bitelaserkhalif Жыл бұрын
@@scratchpad7954 IDK about that, we picked whatever monitor tube available
@Kiss__Kiss
@Kiss__Kiss Жыл бұрын
Happy to see that you're still making great content, Adrian. I remember following you, because I was searching for SJ Forester XT content, and stumbled upon your video. And the rest is history lol
@manytrickpony695
@manytrickpony695 Жыл бұрын
Excellent troubleshooting skills... an oscilloscope is a tremendously useful tool.
@JeffBreyer
@JeffBreyer Жыл бұрын
I had a Sanyo of about the same vintage but it did support 480p. Component looked incredible. It really was handy to have all those inputs.
@button-puncher
@button-puncher Жыл бұрын
For head cleaning, we used Kim wipes (Kimtech). For everything, the Sony D2, Beta SP, and all of the random S-VHS and VHS decks. The 4x8" ones. Fold in to quarters. Perfect finger width size. Beware that you never want to move your finger up/down when cleaning heads. Modern decks have a piezo adjustment for head tracking and that can be broken by vertical movement. What I do is rotate the drum to between the heads, place my finger there, keep constant pressure, then rotate the drum a couple times. One nice thing about pro decks is that most have an RF meter or even an RF test point that you can scope to see the signal from the heads. Low signal, clogged heads or bad tracking.
@The90sAreRad
@The90sAreRad 4 ай бұрын
I picked one of these up with the remote and manual at a thrift store a little while back for only $10, super happy with it!
@DadofScience
@DadofScience Жыл бұрын
Thanks for this video, Adrian. Keeping these old units in service is something I'm keen on myself and I think I have a similar unit. I'll check out the shed and get back to you.
@elfenmagix8173
@elfenmagix8173 Жыл бұрын
Adrian, Adrian, Adrian... With these old TVs, you need to wait for them to warm up before they turn on!! 😅
@chucku00
@chucku00 Жыл бұрын
Nope, 2000's era TV sets turn on in less than five seconds, if they don't something has gone wrong. These TVs dont hava any other tube than the fast response CRT. BTW, if this an attempt at sarcasm, it never adjusts well in written form.
@honich-eriker
@honich-eriker Жыл бұрын
Orion only used Nichicon and Rubycon capacitors in their TV sets, VCRs and DVD players until the company went bancrupt in around 2015. So the capacitor brands weren’t Toshiba’s choice here. Although Orion was known for cheap products, their hardware quality was decent. However, I didn’t like the build quality of their remote controls and the plastics paintwork. Orion’s cases often came with scratches and impurities right out of the factories. In my Orion TV VCR combo from April 2001, some PCBs had the Matsushita [M] logo on it. Some - if not most - Orion-branded CRTs were actually built by Chunghwa in China.
@SockyNoob
@SockyNoob Жыл бұрын
Orion was the 2000s equivalent of a TCL product today tbh, except way older and Japanese and making a wider variety of products.
@SLeslie
@SLeslie Жыл бұрын
@@SockyNoob I am not sure if there was only one Orion or more. But the Orion I know is (was) a Hungarian brand founded in 1913. As far as I know they made decent quality products. After the collapse of the Soviet union, as a lot of companies, it went bankrupt in 1997 and the brand was bought by a Singaporean company group. Now the sell rebranded chinisium garbage.
@MaCroCosmHD
@MaCroCosmHD Жыл бұрын
I'm having crazy flashbacks watching you work over a Micron mousepad, Adrian! I worked Tech Support at Micron in the late 90's. that mousepad was everywhere! They published many different 800 numbers so they could track where calls were coming from. When we got a call to that number, the phone display would say "Mousepad"! BTW loved your unboxing of that era Micron PC you did years ago, I've been watching ever since!
@georgecarlinismytribe
@georgecarlinismytribe Жыл бұрын
If I remember correctly, the sharpening trick some TVs use relies on the detection of the transition from a lighter area to darker area during the image scan, and blanking the pixels in-between the transition boundary. It basically puts a fine black outline between areas of contrasting brightness and/or color.
@andygozzo72
@andygozzo72 Жыл бұрын
? doubt it? that'd require a hell of a lot of signal processing, maybe a high frequency emphasising/boosting circuit ... that'll have the effect of sharpening edges
@georgecarlinismytribe
@georgecarlinismytribe Жыл бұрын
@@andygozzo72 You could be right. Wikipedia entry for 'Edge enhancement' does describe something similar to what I meant, though. There's likely several ways to achieve a similar effect.
@button-puncher
@button-puncher Жыл бұрын
UGH, yeah the "cartoon" effect. I can't believe that they made a set where you couldn't turn it off. Good on Adrian for figuring out a way.
@Wyatt_James
@Wyatt_James Жыл бұрын
What it does on this TV is finely adjusts the horizontal position of the beam, slowing it down during sharp brightness transitions. This compensates for poor bandwidth in the amplification circuitry, but tends to cause overshoot and geometry issues, especially on these Orion sets.
@SockyNoob
@SockyNoob Жыл бұрын
Was this on ALL late model CRTs? I don't remember seeing it on any of the ones we had in the early 2000s.
@ObiWanBillKenobi
@ObiWanBillKenobi Жыл бұрын
I’ve recently gotten enthusiasm over VHS tapes and converting them to computer video files. Thanks to The Oldskool PC’s videos on KZbin, I know way more than I ever thought there was to know in order to get an excellent transfer! And I recently got a professional level VCR with a TBC built in! 😮
@Tedybear315
@Tedybear315 Жыл бұрын
On the arcade games that I used to service (and still sorta do as a phone support tech for an arcade company) CRT monitor on older games does nothing but "click" or "Tick". Usually we trace that back down to a fried H.O.T. (Horizontal Output Transistor). And normally while we're in there replacing the driver transistor along with the H.O.T.- I'll recap the board at the same time. Amazing how much cleaner the picture looks afterwards.
@wbfaulk
@wbfaulk Жыл бұрын
I love the double gesticulation starting around 1:02:40.
@stephenhall6595
@stephenhall6595 Жыл бұрын
I am in the UK and still have a Toshiba 14 inch colour crt tv in my bedroom which my Late Mother bought me in 2005. Still works and gives a good picture. My main set is a Sony flat screen. I am watching your video on a Toshiba laptop.
@emmettturner9452
@emmettturner9452 Жыл бұрын
I have several 2003-2006 era Toshiba AF series CRTs and the last one was obtained exactly the same way: Left on the curb in the rain. Wiped off the mud and it was as good as new. :)
@MarianoLu
@MarianoLu Жыл бұрын
Those Toshiba TV's where really nice back in the day.
@Duddie82
@Duddie82 Жыл бұрын
I really enjoyed this video. I am pretty hooked on your videos. Been watching for many years!!
@swedenreality6082
@swedenreality6082 6 ай бұрын
I need to thank you dude. I am a computer science guy with experience in frontend backend, and a lot of different languages and tech stacks. I am currently working as an educator in the field. When i see you start going about hardware with all.. ratatata, this is the same when I start showing and explaining code. The way my brain works when listening your bs about hardware must be similar to my students when they listen to me when i start going about code. So, thanks for the perspective.
@aarontrupiano9328
@aarontrupiano9328 Жыл бұрын
my dad won one of these at his old job back in 2003 or something and it still works great.
@makeitreality457
@makeitreality457 Жыл бұрын
Interesting, having repaired about 20 sets as a hobby, and yes; both tube-type and LED TVs develop the same RST problem with old caps. One of the first things to check.
@nijhuisrb
@nijhuisrb Жыл бұрын
1990 problems, nice work!
@MrFixiit
@MrFixiit Жыл бұрын
Tuned in for a TV Repair and got a TV and Video repair bonus :D
@michaelthomsen8771
@michaelthomsen8771 Жыл бұрын
I really appreciate you making this type of videos, although long it shows your thought process, and has definitely given me some new ideas for trouble shooting for the future, thanks!
@Greenchrysopsaro
@Greenchrysopsaro Жыл бұрын
I'm very happy that you got the TV working My Mum has a LOAD of experience with cleaning the head on VCRs
@horusfalcon
@horusfalcon Жыл бұрын
A bloodhound's nose, and a wolverine's persistence! Well done.
@BigRonRN18
@BigRonRN18 Жыл бұрын
Just because, I was also looking at the service manual and see you can press "VOL (-)MIN" (presumably the button on the front) and the #"6" key on the remote control and it should display the hours the display has been on. Not that it makes any difference, but it may be interesting to see what it says.
@jaystephens3115
@jaystephens3115 Жыл бұрын
Excellent repair, Adrian. Be aware that these Orion-made Toshibas commonly experience vertical foldover from a couple of caps close to the vertical IC/heatsink that are prone to early failure.
@AnthonyRBlacker
@AnthonyRBlacker Жыл бұрын
I picked up a Logitech Harmony remote years ago, way back in the day, I figured if technology would leap forward and I got my hands on some old tech that none of the new remotes might work for old devices. Plus I had like 8 things in my bedroom back in the 90s or 2000s whenever I got that remote, it was nice it even worked my window air conditioner! Great remote!!
@andythomas7931
@andythomas7931 Жыл бұрын
Thankyou for the great video and the two for one special 🙂
@iteachtime
@iteachtime Жыл бұрын
Thank you Adrian, excellent as usual!
@xKynOx
@xKynOx Жыл бұрын
I still have my mum and dads old 14" CRT from the early 2000's, it was in the caravan so was only used for a few hours a year the picture is still great and a PS2 through scart looks sweet.
@brentadams28
@brentadams28 Жыл бұрын
BBE is an audio ‘exciter’ box we used to use in professional sound systems back in the ‘90s before DSP was really accessible and affordable.
@chucku00
@chucku00 Жыл бұрын
It was also embedded in an IC with high range Aiwa walkmans since the late 80's.
@Mr_Wh1
@Mr_Wh1 Жыл бұрын
Everytime I see a 90s CRT I often get a strong nostalgia feeling. Good times.
@TheMatthiasRiots
@TheMatthiasRiots Жыл бұрын
A master of his craft! I applaud you sir.
@mattparker9726
@mattparker9726 Жыл бұрын
I had a 48 inch Toshiba JUST like that, had to move it upstairs in the apt. I was living in at the time, OMG the thing weighed a TON.
@soliman15
@soliman15 Жыл бұрын
Perfect timing, I just found 20 in Trinitron from the year 2002 and has similar problem to this one.
@agranero6
@agranero6 Жыл бұрын
Nice detective work! And the VCR at the end was hilarious. I use alcohol swabs but this IPA on paper trick is nice and cheaper. I just don't like have too much flammable liquids at home.
@50shadesofbeige88
@50shadesofbeige88 Жыл бұрын
I always love an extemded diagnostic caper.
@maniatore2006
@maniatore2006 Жыл бұрын
A little devil that stops the TV from Working, great video, Thank you.
@markae0
@markae0 Жыл бұрын
A great teaching of a repair video! X 2 for the VCR
@69Dartman
@69Dartman Жыл бұрын
I have that exact same set I bought new back in the day. It still works and looks decent and it has low hours too. It's my last CRT TV left. Panasonic had the first semi flst screen called the GAO tube, excellent looking sets, then Sony came out with the actual flat tubes and everyone made similar sets. I live in deep outer SE Portland so I'm local to you and I have fixed TVs for years but no longer. I have a Beltron CRT rejuvinator and all kinds of tubes and tube testors stashed in my shed. I also had the Toshiba 34hfx84 crt HD sets from 2005 to about 2019. Excellent looking set and it just continued to work.
@mrnmrn1
@mrnmrn1 Жыл бұрын
Here in Europe, Thomson was very early in making almost fully flat CRT TVs. The earliest I saw was from 1990-1992. They called it Thomson Planar, came first with the ICC5 chassis that was developed at around 1986-1988. The chassis needed an add-on board with a ton of correction coils and capacitors, because the flat CRT needed quite some trickery on the deflection for proper geometry (I think it wasn't just flat, it had a deflection angle greater than 110°, maybe it was 130°). They are as flat as most late "flat" CRTs on the inside. Because most "flat" CRTs are only fully flat on the outside, the inside still has some curve. Even lower-end flat Trinitrons, they are still cylindrical on the inside. I smashed some dead flat Trinitron tubes, and the aperture grille (so the screen, too) is actually curved. Probably the Bravia / XBR Trinitrons are fully flat on the inside as well, at least that is what they claim. But my cheap KV-29FX20 from 2001 definitely had a flat Trinitron tube that is curved inside. I smashed the dead tube that came out of it after 39k hours of operation without any failure (the TV might still work, I replaced the tube in it and gave it to my neighbour in around 2010).
@Lightrunner.
@Lightrunner. Жыл бұрын
CRT TV 😻😻😻😻 Super nice repair vid👍👍👍👌
@jaygreentree4394
@jaygreentree4394 Жыл бұрын
I still have my 20 inch tv with dvd/vcr built-in from back in college. I dont use it much these days because flat screens are better for my eyes. That tv still works as good as it did brand new in 2003.
@paulmichaelfreedman8334
@paulmichaelfreedman8334 Жыл бұрын
I recently salvaged an old EMac from mid-90's from an old lady who was about to toss it. Now I am not so interested in the Mac components but it does have a really nice nearly flat shadow mask CRT. She also said it had not been used for a long time and when new it was not used much either. The machine has seen at most 100 hours of operation. I have yet to disassemble the machine, but I am expecting the CRT's Cathode to be nearly pristine. Keeping it for eternity or until it breaks, because these things are becoming exceedingly rare. If only I'd realized BEFORE I tossed a beautiful trinitron CRT (approx 10 yrs ago) with ultra fine aperture grille, how valuable they'd become. I love LCDs but CRT's gives the retro stuff a pure look like nothing else. I am hoping there's some genius little guy sitting in a little office somewhere in China or Japan working on a way to make flexible OLED displays with a bulge so they resemble CRTs in appearance.
@998cooper
@998cooper Жыл бұрын
Excellent vid. Thanks for posting.
@tenminutetokyo2643
@tenminutetokyo2643 Жыл бұрын
I found an even older Toshiba CRT on the street too. Dragged it home and it still works. An older black 19" model. And now Toshiba and Ricoh are going to merge.
@GC1CEO
@GC1CEO Жыл бұрын
I knew so many people who had either this model or a very similar one -- it was great for video gaming in college dorms because it wasn't too small but it wasn't large either.
@neilthomas8070
@neilthomas8070 Жыл бұрын
Nice to see the TV working. I wish I could do the technical repairs; as we say over here. I'm cacky handed.
@ChasLarge
@ChasLarge Жыл бұрын
Nice one Adrian. Re the "broken VCR", the most likely cause of the failure was due to the tape being rewound after it was last used. I suspect that machine keeps the tape laced up in FF & REW so it's always in contact with the head drum. If you played the tape then rewound it, this is effectively dragging the tape backwards across the heads which can cause oxide shedding. It was never a problem with earlier VCRs that always unlaced the tape before FF or REW modes. Some engineers I knew back when always laced up mechs were introduced, said that this was not only to keep the tape against the control track head, so the tape counter could use the pulses to count the tape position in real time, but it was suggested that this was so the heads would wear more quickly causing the customer to buy a new machine earlier - in other words, the first steps towards built in obsolescence. I think they was just paranoid myself but then cheap video recorders rang the death knell of the TV & Video repair trade.
@drumcorpshistory
@drumcorpshistory Жыл бұрын
My mom for many years owned a black flatscreen CRT that I swear was an Orion brand although i can't exactly remember because she also owned a much older Orion branded VCR and that VCR took *years* of almost daily use recording playing rewinding and both of them were super reliable, I wasn't too shocked to see the tube being Orion brand but that also means even though its towards the end of the CRT era it should be reliable for a good long time, seeing as how it didn't really get used when you found it. Great stuff as always Adrian!
@MikeSmith-sh3ko
@MikeSmith-sh3ko Жыл бұрын
One of the biggest problems with old tube TVs is that the line frequency oscillator breaks down the solder so first thing is always to resolder the ground tabs around the frame of the case. It uses the metal frame to give other parts of the TV a chassis ground 👍
@lucasRem-ku6eb
@lucasRem-ku6eb Жыл бұрын
Mike Smith Grounding issues, are you on 120 Volt grid in the US. I do ground them all, japan / Europe Eng versions only, the old Sony Trinitron 60 Ish models i collect, can you give me some tips, specially on the Japan dual systems i have some issues.
@ran2wild370
@ran2wild370 Жыл бұрын
Exactly was expecting to see the SCART!! My 2005 Samsung has 2 scart sockets one of them marked as RGB. I used to connect a DVD player there when it was working then dvd went completely bad a few years ago. The TV is still being used for watching some cartoons and music with an aerial broadcasting STB.
@tony359
@tony359 Жыл бұрын
Nice repair! I'm a bit disappointed I didn't see any naked fire on the PCB, as it happened when I repaired mine! :)
@CandyGramForMongo_
@CandyGramForMongo_ Жыл бұрын
The first ADB video I saw was Adrian fixing a discarded tv. 😂
@stevethepocket
@stevethepocket Жыл бұрын
Same. I wonder how many people got recommended that video back in the day, and why.
@timrb
@timrb Жыл бұрын
Once again, great to see you keeping tech running!
@zynskeywolf
@zynskeywolf Ай бұрын
21:54 Observing the schematic, the way it actually seems to work is the switcher ic selects the composite input source to output to the comb filter, which is always in the signal path, because that's what converts composite to Y+C. The output then goes back into the other set of switches in the ic that switch between composite/s-video/component.
@tomekrv942
@tomekrv942 Жыл бұрын
Very interesting video. Thanks to You I learned a lot in the field of electronics.
@mohinderkaur6671
@mohinderkaur6671 Жыл бұрын
Nice repair! Adrian's Analog basement for now!
@Darieee
@Darieee Жыл бұрын
ssssuuper cool video - chuckled massively at the start especially 🤣 hope I can steal that optimism you have launching into troubleshooting - love it ❤️
@michaelrose1814
@michaelrose1814 Жыл бұрын
Like the long format repairs keep it up
@ajslim79
@ajslim79 Жыл бұрын
the YUV (component) input is quite nice to have
@sean_vikoren
@sean_vikoren Жыл бұрын
An epic tale of victory.
@annareismith6843
@annareismith6843 Жыл бұрын
I notice that TV right off the first time I watched your videos. I had the same TV I used to play my old retro game consoles on and left it in my last house as I did not have room for it in my storage when I moved out. And was homeless in a shelter for 3 months tell I found a place. It is a great TV for retro gaming.
@adriansdigitalbasement
@adriansdigitalbasement Жыл бұрын
Glad to hear you're back on your feet! Hopefully someone is using that TV still -- and someone didn't just throw it out. (Like this one, left on the street ...)
@SmallJeanGenie1972
@SmallJeanGenie1972 Жыл бұрын
My family uses an extremely similar set as our primary TV in our living room
@ramakrishnamishra8179
@ramakrishnamishra8179 7 күн бұрын
came for the CRT and stayed for the VCR!
@petesapwell
@petesapwell Жыл бұрын
Nice work Adrian :) permission to engage ‘Smug’ mode :)
@alfonsotoledo8009
@alfonsotoledo8009 Жыл бұрын
hell yeah man! i would like to see more videos like this, very informative and useful.
@deanagoes2791
@deanagoes2791 Жыл бұрын
if i'm not mistaken the last to close down the picture tube manufacturing division was the china chunghwa company.
@user-Atamigaputer
@user-Atamigaputer Жыл бұрын
Brilliant Adrian
@snarkdluG
@snarkdluG Жыл бұрын
Orion partnered with Toshiba 2001 to manufacture smaller CRT and LCD televisions and DVD/VCR combos for the North American market until 2009.
@8-bitcentral31
@8-bitcentral31 Жыл бұрын
Yeah with my VCR I find that sometimes a bad tape will do that. I just run a clean new self recorded tape in it for about an hour and gradually the picture comes back until it is bright and vibrant again.
@lawrencejelsma8118
@lawrencejelsma8118 Жыл бұрын
I have that same exact Panasonic Super VCR VHS player that still works to this date. It has the problem of playing older VHS tapes in SLP and EP (4 hr and 6 hr formats). It plays and tracks regular SP (2 hr) tapes. But yes! Neat you fixed it cleaning the tape head. I haven't cleaned mine since owning it from like 2002 or some day then. As far as CRT TVs I think I had a simple diode problem failure but I added to the problem by cracking my bottom power board as the TV maker confused me as to extra set of screws that needed to be removed hidden at the bottom holding that board in place when trying to remove the back on a 2005 RCA CRT TV with those same number of accessory ports also for inputs and outputs to the TV.
@chrisjpf33
@chrisjpf33 Жыл бұрын
My wife still uses that exact TV in her office, PLUS I have a broken one in storage! I'll be right over! ;-)
@paulstubbs7678
@paulstubbs7678 Жыл бұрын
Good job, as mentioned elsewhere, I'd also check/swap other caps that are feeding the regulator that supplies that 5V rail, maybe even the pass transistor is a tad low in gain.
@jjock3239
@jjock3239 Жыл бұрын
A very instructive video.
@steveb3885
@steveb3885 Жыл бұрын
Since the late 90s. Orion was building full chassis, not just the CRT. Almost everyone was outsourcing to Oriion to design and build their chassis for them.
@gbowne1
@gbowne1 Жыл бұрын
Looks like the AT is having fun in the background :) I have one of these TV's.. It was a thrift store rescue. I imagine its about 20 years old. It has some of the same issues this one does. I used to play the video from my digital camera which has video output.
@aleksandarl6975
@aleksandarl6975 5 ай бұрын
As an European, my symathy to all US tech enthusiasts for not having scart, it makes life so much easier, scart wasn't just audio/video with everything from composit to rgb on it, it also had control bus, so componets could control each other, synchro start, channel change etc. Connector was relatively big with 2 rows of well spaced easy to solder pins, so making custom cables was pretty easy.
@doctor49152
@doctor49152 Жыл бұрын
I had that exact same TV. I sooooo regret getting rid of it.
@dexx2233
@dexx2233 Жыл бұрын
CRT TV sets ftw, I also still game on a crt, in fact I have 2 identical units from Bang & Olufsen (a design electronics company in Denmark) one is from 2004 and the other is from 2006… yes 2006!, the model is: BeoVision MX4200, to bad they didn’t release this tv in the USA 😢 the design is excellent.. glad you fixed yours Adrian 👍
@evensgrey
@evensgrey Жыл бұрын
The last manufacturer of CRTs was some company in India, who made the last CRTs as replacements for aviation displays.
@falken_gt4
@falken_gt4 Жыл бұрын
Saw the ‘Special K’ Rubycons and didn’t think it would have been that! Remember the early 2000s Cap Plague, swapped out over 200 Dell GX270 motherboards, the Special K caps always were fine.
@adriansdigitalbasement
@adriansdigitalbasement Жыл бұрын
Yeah!! I was surprised quality caps in this TV -- and that it is having an issue. I just worked on a 2000 era Soyo P3 motherboard -- and some "Wendell" brand caps were all completely dead. 1000uf/6.3v and all were 30-50uf with high ESR. At least they hadn't leaked but what crap!
@RetroCaptain
@RetroCaptain Жыл бұрын
If its "actually from the 90s" & a higher grade model it for sure has S video. That was a must as everything had S video in "1998" etc that i ever saw. Edit- I am positive I have two Orion sets. Bought cheap after led tv became popular. One still in the box with the Future Shop receipt and warranty, never used, the other lightly used. I can't remember if they have S video but the spot to connect everything is up at easy access. The receipt date was late 2004/early 2005 so the last gasp of crt tv. The box states something like "High quality TV". I bought it for a relative who after decided he wanted a big flat screen so here it sits. I also have an MTC that looks a lot like a clone of Adrians set i use to test dvd players on. There's been a few cases where faulty components were going out to customers and companies. Both transistors and caps.
I replaced the main board of this TV with brand new parts made in 2023!
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