Man i really wish I was alive 30+ years ago to work in the tv repair industry. You have so much knowledge as a 20 year old just starting in the repair industry i definitely look up to you and your videos!
@@12voltvids My local TV repair shop was am amazing place. It was a family owned business like most were had been there since the 60s, in the 70s and 80s you could take pretty much any TV there and you'd more than likely get it back the same day as it was like Aladdin's cave and they were very skilled.. by the end of the 90s they were mostly repairing PC crt monitors and limped on into the early 2000s doing some of the newer LCD TV's but stuff became throw away and limited parts and most people were just buying the latest and greatest models.. they shut up shop in 2005, sad day.
Ugh the dreaded Daewoo module of death. They made a revision of that module where everything was covered in siliastic like compound which made it a pain to repair. Used to be able to get replacements for about $10 which made it easier to just change the thing. If you were in a hurry and didn't want to wait for parts it was almost always the pair of transistors in the middle of the left (primary) side of the board along with the double diode package next to the two surface mount caps at the top on the same side.
Yeah, I jumped 3 times then laughed out loud. When I would have run inside, you turn the board towards you!!😅 It’s amazing watching people that really know their trade! Thanks, loved it👍👍
Techmoan had done a 15 minute video a few years back on clear case electronics. Even took a more in-depth look on a CRT from 2008. The case on your TV reminds me of the clear green original XBox cases, which were done in a limited run back in 2003. Although, I think they did it more for the 'cool looks'...
A classic video. The last time I saw popping capacitors was when BigCliveDotCom deliberately fiited electrolytics backwards to see what happened. Great stuff !!
Reminds me of way back in junior college electronics when some of the students mis wired a voltage doubler power supply experiment. What a smell in the classroom!!
I remember in high school one of the guys was building an amplifier and put the main filters in backwards. They both popped and filled the classroom with lots of smoke which set off the fire alarm and everyone got to stand out in the rain till the fire dept cleared the school for reentry. Nobody was happy because it was in January outside temperature was just above freezing and it was pissing freezing rain outside. We had to wait in the assembly area which was the football field. No going to your locker to get your jacket, go directly outside when the alarm bells go off.
Much respect for your patience on this crt... i have 2 still running one is a Samsung from 2001 and a philips from the same year... and one from 1997...
I worked for a Catholic diocese year ago. The boss brought some nuns in for a tour of our repair shop. Another tech had replaced a cap but had the polarity wrong in, I think, a slide projector. He plugged it in just as the nuns entered. LOUD BANG, like good a sized firecracker and a cloud of smoke and bits of the cap sprayed all over his bench. I couldn't stop laughing at the way those nuns jumped.
Thanks for taking us on this adventure. First time I experienced a cap blowing, I had walked away to go get a glass of water when I suddenly heard a POP followed by a hissing sound & saw a spewing cloud that stunk. I grabbed my fire extinguisher and pulled the plug. I had a good laugh afterward but it scared the crap out of me. It took a week and a half to get rid of the stink. They do get your attention when they explode. 😳
I just bought this tv without a remote control and want to play my PlayStation on it. Is there an AUX/AV channel that i need to access to play videogames?
Does it have av inputs? If so there should be a button to select or you just go down to where channel 1 would have been if that doesn't work you will have to find a remote.
I have a friend who used to work for this place that would sell those set. Disconnect the speaker. Put a headphone jack in. Box the set and add a headphone into the box. Cost over 100% then a normal TV.
Makes me want to get back to fixing my Heathkit oscilloscope. It's got no vertical, but I'm not sure why. I found a fried resistor, which I replaced, but I had to leave to do something else. Maybe I could fix my Tek scope to fix the Heathkit!
Maybe worth getting the same model TV with ordinary black/silver case, and replace the chassis. 2.5 times the voltage might have damaged a lot of things in this. But if the module is available for cheap, it might worth a try to repair this chassis. Or as others suggested, the ceramic module is usually repairable. As "N" said below: "If you were in a hurry and didn't want to wait for parts it was almost always the pair of transistors in the middle of the left (primary) side of the board along with the double diode package next to the two surface mount caps at the top on the same side."
The module is a 20 minute drive from my house but the supplier only does mail order. Used to be able to go there but but anymore due to a few people that couldn't understand his instructions to not pull into the driveway or on the street in front as it is a home based business and not a retail walk up. Most of his custoners followed his request and parked up the street and walked in. A few took the attitude that "you can't tell me where to park" and one of his neighbours complained and the city came down on him. So now it is mail order only and pay shipping. Seems there is one in every crowd that deserves a knuckle sandwich.
Hey Dave, a little more butter with that TOAST ? Probably came from a Gang Banger watching too many re-runs of GUN SMOKE ! Thanks for the educational experience .
The best stink in the good old days was when a selenium rectifier would short and create the foulest smell on earth. A buddy gave me a Radio Shack receiver to repair and when I plugged it in a 6 inch flame shot out = transformer was shot and he would have to send it to the shack for repair. A magnavox tv had a cap short and burned a hole through the circuit board. Smoke was very common back in the analog days.
And you wonder why so many of the old text drop-dead of lung cancer. Perhaps it was the cigarette they all smoked. The guy that I worked for died last summer of cancer.
@@12voltvids Love your video as you followed the same path that I would. Some engineers don't have a clue. Worked on a industrial lab instrument and they put 300 volts on a connector and the next pin was 5 volt supply you can guess what happened when corrosion set in. Fried everything on logic boards and burned up harness !
@@cars654 many engineers are like that. Just look at how they design bridges around here. Snow storm and ice bombs a falling so they close the bridges and the city shuts down.
Can you "variac" a TV?? I work on tube guitar amps, so I do that all the time when we've got a cap-blower... run it at half or 2/3rd input voltage and then search for the culprits that way.
Conventional liner power supply yes. Smps no. As soon as it starts it will just go completely wild unless the regulator throttles it back. They operate generally by frequency and transformer resonance. As the transformer is brought close to resonance the efficency increases and the voltage goes up as frequency moves away the voltage drops. They work one of 2 ways. Frequency shift where the mosfet has a 50% duty cycle or fixed frequency where the duty cycle changes to control the output. The control ic controls the mosfet and monitors the output from the secondary. This one monitors both the 12 and 130v rails. Since the feedback signal was there but no voltage control the ic is fubar.
@@12voltvids Would you be able to disconnect the regulator and provide a drive signal via a function generator? That would at least verify that the rest of the set works properly.
@@Stoney3K not really because first of all i don't have a function generator and even if i did controlling the frequency to get the voltage correct would be an issue because as soon as other circuits draw current the voltage would drop. The regulator ic needs to be replaced. Now an external power supply to supply the various voltages, 135 45 and 12 could power it up.
Mr 12voltvids love your videos. Was wondering if you could lend me some knowledge on crt repair. There’s not a lot of repair centers any longer. I have a 1986 fisher tv that I acquired and have been trying to fix. The horizontal width did not fill the screen and I can max out the width adjustment pot but seems to have little effect. There is also a vertical issue with 3 lines at the top of screen and image appears to sag down in the center. I’ve checked all capacitors and diodes. There are two test point near the fly back that shows 85v when running. I don’t have a service manual for this set. The vertical output is a separate board from the main. Kind of lost at the moment: appreciate any tips
Sounds like low b+ from the regulator. That will result is insufficient horizontal reflection the HV will also be low. Fisher tv is a Sanyo. Most TV's run about 135v from regulator.
@@12voltvids thanks for the reply. I replaced all the electrolytic caps tonight no change. I have a pair of faint horizontal bars running up the screen as well. It uses a SMPS
@@12voltvids is there a way i can connect with you to pick your brain? i would love to donate. i'm not an crt television expert. i found the service manual and i'm not sure why i still have low B+ i checked the optocoupler and switching transistor.
@@12voltvids it has a switching ic but it’s tied to two error detect and error drive modules they look like linear chips with transistors on them. I cannot even find any info on them part # JU0161 and JU0148
In the uk we had sets with the onwa chassis you never plugged one in without charging two small caps in the power supply or you’re definitely getting smoke or very high eht there was a zennerbut sometimes went open
I could say something about grabbing hot capacitors, but I don’t think anything else need be said. 🤫 I will add, though, that the timing was exquisite! Right as he grabbed the PCB, the cap let go - couldn’t have planned that any better! 😝
That's real bomb defusing! Are the regulator components on the regulator module marked with "normal" type numbers? Maybe possible to troubleshoot and replace on component level?
Just curious, why do you exclusively use solder wick? I use a cheap Chinese solder sucker, and occasionally a Hakko one (its at my friend's shop.) Thanks!
I don't have a reliable solder sucker. Spend more time unclogging the tip. Would love to get a powered unit but the ones that I have look at are 400.00 and that is just too much to invest for a hobby. A 20.00 roll of wick lasts me a couple years.
In the states the prison supply system is pretty much a monopoly. The one company supplies that supplies everything from clothing to electronics, personal care item over charges governments since they repackage items with very cheap labor and charge twice the cost of goods to the prisons. It’s a lot like the military supply system that uses NSN ID numbers on products. Items that are costing a dollar are sold to the government at 20-30 dollars. Kinda like the USAir Force paying $600 for a $20 toilet seat that was repackaged with an NSN stock number back in the 90’s. About as stupid as being quoted $300 for each hinge for a door to a military ISO comms containers used in Iraq. Found someone with a CNC system who was able to scan the hinge butt and machine new ones for less than $50 each with the aluminum bar stock. Government waste of our taxpayer money. Hopefully it’s not that bad in Canada.
This really reminds me of the movie from Pirates of Silicon Valley when Steve Wozniak had accidentally place the wire on the motherboard wrong and cause to have components short after he installed the motherboard kit to make computer in the bedroom.
Hah, that smoke reminded me of indoor fireworks at my Grandparents at Xmas time as a youngster in the 60's. Should have left it a bit longer to get hotter to desolder itself!! 😀
Living vicariously through the trials by fire, through the magic of internet packet transmissions. Rock on. The video is cool, dude. Here's to hoping you obtain the part somehow, costly or not. Maybe there is a potential donor at a viewer's location? That would rock on, too.
by part you mean that doughter board circuit? i am pretty sure it can be rapaired offboard and then put back on. that what i would try anyway with something like that before searching for a new one. looks like some comparator circuit with 2 opto couplers so just checking all parts should get you close? i really love your videos and this was kind of exciting, but i really hoped you show a solution any idea when part 2 might be on?
Once that avalanche zener diode blows that feedback control module is bad I repaired lots of those televisions here in jamaica years ago but they are not around anymore
As long as that sub board that's defective is not encased - it looks like those components should be able to be sourced out and that regulator board can be rebuilt, but micro soldering would be involved. Holy smoke Dave - I bet that was a stinker of a set...
You're forgetting that there are thin film resistors on that board under the paint. If you knew the values one could be built but the part is only 7.50 so why would one bother. It's readily available.
@@12voltvids Ohhhh Yep that makes sense, but I was suggesting - if as you said that it's readily available - but if it wasn't available, could it be rebuilt, as you say there are resistors that sound like they can't be removed due to being part of the board itself, 🤔 interesting 🤔, I would of never thought of that...
Well ya learn something new everyday. I'm just glad you didn't get hurt with that set, as it looked like a unpredictable smoke bomb with all those capacitors going up in smoke...
I wouldn't even think the demand for these transparent televisions would be small - Yes small compared to general population as it was when ,But there are bucket loads of prisons and I suspect the depend in this day and age would be quite high in terms of the home office entering into a contract with suppliers,compared to lcd sets that would be more expensive and have less robust security?
A prison set. Apparently the.prison system has, or had, a number of devices available to the population in the specified color (clear). Techmoan did a vid a couple of years ago on some of the stuff he was able to aquire. Very enjoyable with all the "surprises'" the set threw at you. Thanks for all you do to teach and entertain us.
I also remember seeing some colored transparent sets in stores. Kids sets but they did make them for prisons and the security torx screws is a dead giveaway. Consumer sets would use Philips.
@@arootube the few I worked in were clear. Was brought in by a guard that took them home after inmate finished sentence and left it behind. They all had speakers disabled and inmate had to use earphone. Brought in a few to have speaker reconnected.
@@jerryspann8713 they were sold to more than prisons but prisons required a transparant cabinet. The ones I worked on out of an actual prison were clear and had the inmates number engraved on the back. I guess some took their set with them when they got out and others abandoned them. A guard that lived local grabbed a few abandoned sets and took them home for his kids and I got the pleasure of fixing them. Those ones were 100 clear and RCA branded.
After the first cloud of smoke, would have gotten the schematic. Wasting time and caps. Incinerated 0.82 resistor ( 2 watt?) DEFINITELY a short involving high voltage.
I don’t know if that’s actually a prison TV. There were a lot of transparent color electronics in stores in the late ‘90s, after the first iMac came out. I think my friend had one just like this.
Ugh, several smoking caps, my sympathies over the smell, one's bad enough. I've only had electro go bang on me, but those ones really belched out the smoke. I've had smoking tantalums, they've a very biting smell
DPM001-TI Original New Daewoo being sold for $24 on Ebay... but who knows if they're fake or not. Too much to spend on a chance I would think. Hope you find your way out of there when the smoke clears.
I once fell asleep watching tv and woke up to the most awful smell and found the big old power transformer burned up. Felt sick from it for about a day a awful feeling.
![SahBabii - Viking [Official Music Video]](http://i.ytimg.com/vi/D37cL92JX0I/mqdefault.jpg)
Man i really wish I was alive 30+ years ago to work in the tv repair industry. You have so much knowledge as a 20 year old just starting in the repair industry i definitely look up to you and your videos!
40 years ago one could make a good living servicing TV's. Not today.
@@12voltvids ya defiantly not today, unfortunately its cheaper to through it out now or give it to someone like me who likes fixing free stuff😂
@@Tech_481 same here. I have an LG plasma and sharp LCD to work on when i get a chance.
@@12voltvids you said it right.
@@12voltvids My local TV repair shop was am amazing place. It was a family owned business like most were had been there since the 60s, in the 70s and 80s you could take pretty much any TV there and you'd more than likely get it back the same day as it was like Aladdin's cave and they were very skilled.. by the end of the 90s they were mostly repairing PC crt monitors and limped on into the early 2000s doing some of the newer LCD TV's but stuff became throw away and limited parts and most people were just buying the latest and greatest models.. they shut up shop in 2005, sad day.
No wonder it was in prison. It's a serial cap killer.🙂
The TV busted a cap.
They took it out of genpop because it threatened to pop a cap.
Love it! You win the internet for the day :)
😂
Ugh the dreaded Daewoo module of death. They made a revision of that module where everything was covered in siliastic like compound which made it a pain to repair. Used to be able to get replacements for about $10 which made it easier to just change the thing.
If you were in a hurry and didn't want to wait for parts it was almost always the pair of transistors in the middle of the left (primary) side of the board along with the double diode package next to the two surface mount caps at the top on the same side.
I did jump and laughed out loud with all that smoke! Great video Squire, thanks for posting
"up in smoke" that brings back memories lol
Yeah, I jumped 3 times then laughed out loud. When I would have run inside, you turn the board towards you!!😅 It’s amazing watching people that really know their trade! Thanks, loved it👍👍
Techmoan had done a 15 minute video a few years back on clear case electronics. Even took a more in-depth look on a CRT from 2008. The case on your TV reminds me of the clear green original XBox cases, which were done in a limited run back in 2003. Although, I think they did it more for the 'cool looks'...
Zenith apparently made a cap killer model!
A classic video. The last time I saw popping capacitors was when BigCliveDotCom deliberately fiited electrolytics backwards to see what happened. Great stuff !!
Reminds me of way back in junior college electronics when some of the students mis wired a voltage doubler power supply experiment. What a smell in the classroom!!
I remember in high school one of the guys was building an amplifier and put the main filters in backwards. They both popped and filled the classroom with lots of smoke which set off the fire alarm and everyone got to stand out in the rain till the fire dept cleared the school for reentry. Nobody was happy because it was in January outside temperature was just above freezing and it was pissing freezing rain outside. We had to wait in the assembly area which was the football field. No going to your locker to get your jacket, go directly outside when the alarm bells go off.
Much respect for your patience on this crt... i have 2 still running one is a Samsung from 2001 and a philips from the same year... and one from 1997...
Dave, your CRT videos are always a treat! And this one was extra spicy! Ha, I jumped at a couple of those cap explosions.
It's like a war zone in your workshop Dave! Those caps sure go off when angry!! 🤣
Honestly, I love the way that clear green shell looks.
That was great to watch. Thanks Dave.
Lucas Electrics made prison TV sets?
Like a boss…no hissy capacitor fit going to make this man leap out of his chair.
Notice I didn't even flench when it popped. Heart rate never went past 59.
that case is beautiful, candy apple
I worked for a Catholic diocese year ago. The boss brought some nuns in for a tour of our repair shop. Another tech had replaced a cap but had the polarity wrong in, I think, a slide projector. He plugged it in just as the nuns entered. LOUD BANG, like good a sized firecracker and a cloud of smoke and bits of the cap sprayed all over his bench. I couldn't stop laughing at the way those nuns jumped.
LOL!
Thanks for taking us on this adventure. First time I experienced a cap blowing, I had walked away to go get a glass of water when I suddenly heard a POP followed by a hissing sound & saw a spewing cloud that stunk. I grabbed my fire extinguisher and pulled the plug. I had a good laugh afterward but it scared the crap out of me. It took a week and a half to get rid of the stink. They do get your attention when they explode. 😳
First time it happens at the shop for me it scared the crap out of me too
I've brown one in a phone charger before, a simple 120v to USB charger....was not a pleasant smell. It apparently didn't like charging a power bank..
I just bought this tv without a remote control and want to play my PlayStation on it. Is there an AUX/AV channel that i need to access to play videogames?
Does it have av inputs? If so there should be a button to select or you just go down to where channel 1 would have been if that doesn't work you will have to find a remote.
380V and climbing fast when you shut it down. Wow!
Full credit to you, if that had been me, after 3rd capacitor smoking I would dump it in the bin.
I have a friend who used to work for this place that would sell those set. Disconnect the speaker. Put a headphone jack in. Box the set and add a headphone into the box. Cost over 100% then a normal TV.
Hi there. What brand/kind of solderwick do you use?
12voltvids turns into 12volt-smoke! - another great video as always!
What's on TV today? Explosion results in smoke😂😂😂
"We have drive!" while it's smoking everywhere. Made my morning lmao!!!
Reference voltage capacitor could be the suspect of this issue
Also try to check the components of secondary side of regulator circuit
0:29 right there seeing that tv for some reason gave me a lot of nostalgia
Considering this was a prison tv. Lol.
Zenith got their caps mixed up, the put the ones for cap guns in that tv instead electronic ones! LOL
9:33, thought you got zapped lol
Makes me want to get back to fixing my Heathkit oscilloscope. It's got no vertical, but I'm not sure why. I found a fried resistor, which I replaced, but I had to leave to do something else. Maybe I could fix my Tek scope to fix the Heathkit!
Maybe worth getting the same model TV with ordinary black/silver case, and replace the chassis. 2.5 times the voltage might have damaged a lot of things in this. But if the module is available for cheap, it might worth a try to repair this chassis. Or as others suggested, the ceramic module is usually repairable.
As "N" said below: "If you were in a hurry and didn't want to wait for parts it was almost always the pair of transistors in the middle of the left (primary) side of the board along with the double diode package next to the two surface mount caps at the top on the same side."
The module is a 20 minute drive from my house but the supplier only does mail order. Used to be able to go there but but anymore due to a few people that couldn't understand his instructions to not pull into the driveway or on the street in front as it is a home based business and not a retail walk up. Most of his custoners followed his request and parked up the street and walked in. A few took the attitude that "you can't tell me where to park" and one of his neighbours complained and the city came down on him. So now it is mail order only and pay shipping. Seems there is one in every crowd that deserves a knuckle sandwich.
Hey Dave, a little more butter with that TOAST ? Probably came from a Gang Banger watching too many re-runs of GUN SMOKE ! Thanks for the educational experience .
The best stink in the good old days was when a selenium rectifier would short and create the foulest smell on earth. A buddy gave me a Radio Shack receiver to repair and when I plugged it in a 6 inch flame shot out = transformer was shot and he would have to send it to the shack for repair. A magnavox tv had a cap short and burned a hole through the circuit board. Smoke was very common back in the analog days.
And you wonder why so many of the old text drop-dead of lung cancer. Perhaps it was the cigarette they all smoked. The guy that I worked for died last summer of cancer.
@@12voltvids Love your video as you followed the same path that I would. Some engineers don't have a clue. Worked on a industrial lab instrument and they put 300 volts on a connector and the next pin was 5 volt supply you can guess what happened when corrosion set in. Fried everything on logic boards and burned up harness !
@@cars654 many engineers are like that. Just look at how they design bridges around here. Snow storm and ice bombs a falling so they close the bridges and the city shuts down.
Encountered similar problem on sansui 84cm caps blew exactly same spots however they blew after I removed and changed the c1815 transistor
Can you "variac" a TV?? I work on tube guitar amps, so I do that all the time when we've got a cap-blower... run it at half or 2/3rd input voltage and then search for the culprits that way.
Conventional liner power supply yes. Smps no. As soon as it starts it will just go completely wild unless the regulator throttles it back. They operate generally by frequency and transformer resonance. As the transformer is brought close to resonance the efficency increases and the voltage goes up as frequency moves away the voltage drops. They work one of 2 ways. Frequency shift where the mosfet has a 50% duty cycle or fixed frequency where the duty cycle changes to control the output. The control ic controls the mosfet and monitors the output from the secondary. This one monitors both the 12 and 130v rails. Since the feedback signal was there but no voltage control the ic is fubar.
@@12voltvids Would you be able to disconnect the regulator and provide a drive signal via a function generator? That would at least verify that the rest of the set works properly.
@@Stoney3K not really because first of all i don't have a function generator and even if i did controlling the frequency to get the voltage correct would be an issue because as soon as other circuits draw current the voltage would drop. The regulator ic needs to be replaced. Now an external power supply to supply the various voltages, 135 45 and 12 could power it up.
Mr 12voltvids love your videos. Was wondering if you could lend me some knowledge on crt repair. There’s not a lot of repair centers any longer. I have a 1986 fisher tv that I acquired and have been trying to fix. The horizontal width did not fill the screen and I can max out the width adjustment pot but seems to have little effect. There is also a vertical issue with 3 lines at the top of screen and image appears to sag down in the center. I’ve checked all capacitors and diodes. There are two test point near the fly back that shows 85v when running. I don’t have a service manual for this set. The vertical output is a separate board from the main. Kind of lost at the moment: appreciate any tips
Sounds like low b+ from the regulator. That will result is insufficient horizontal reflection the HV will also be low. Fisher tv is a Sanyo. Most TV's run about 135v from regulator.
@@12voltvids thanks for the reply. I replaced all the electrolytic caps tonight no change. I have a pair of faint horizontal bars running up the screen as well. It uses a SMPS
@@12voltvids is there a way i can connect with you to pick your brain? i would love to donate. i'm not an crt television expert. i found the service manual and i'm not sure why i still have low B+ i checked the optocoupler and switching transistor.
@@ChrisGarage does it have an str type regulator ic? If so that's likely the culprit.
@@12voltvids it has a switching ic but it’s tied to two error detect and error drive modules they look like linear chips with transistors on them. I cannot even find any info on them part # JU0161 and JU0148
In the uk we had sets with the onwa chassis you never plugged one in without charging two small caps in the power supply or you’re definitely getting smoke or very high eht there was a zennerbut sometimes went open
I could say something about grabbing hot capacitors, but I don’t think anything else need be said. 🤫 I will add, though, that the timing was exquisite! Right as he grabbed the PCB, the cap let go - couldn’t have planned that any better! 😝
That's real bomb defusing! Are the regulator components on the regulator module marked with "normal" type numbers? Maybe possible to troubleshoot and replace on component level?
As us old TV transmitter guys used to say, tune for maximum smoke 🤣🤣
That's exactly what i did, literally.
I had fun watching you blow up all those capacitors, it must have stinked up the place pretty good... That was a lot of magic smoke.
Just curious, why do you exclusively use solder wick? I use a cheap Chinese solder sucker, and occasionally a Hakko one (its at my friend's shop.) Thanks!
I don't have a reliable solder sucker. Spend more time unclogging the tip. Would love to get a powered unit but the ones that I have look at are 400.00 and that is just too much to invest for a hobby. A 20.00 roll of wick lasts me a couple years.
Didn’t think I would be watching a action flick on your channel! Hope you can find the regulation module for the outlaw CRT.
In the states the prison supply system is pretty much a monopoly. The one company supplies that supplies everything from clothing to electronics, personal care item over charges governments since they repackage items with very cheap labor and charge twice the cost of goods to the prisons. It’s a lot like the military supply system that uses NSN ID numbers on products. Items that are costing a dollar are sold to the government at 20-30 dollars. Kinda like the USAir Force paying $600 for a $20 toilet seat that was repackaged with an NSN stock number back in the 90’s. About as stupid as being quoted $300 for each hinge for a door to a military ISO comms containers used in Iraq. Found someone with a CNC system who was able to scan the hinge butt and machine new ones for less than $50 each with the aluminum bar stock. Government waste of our taxpayer money. Hopefully it’s not that bad in Canada.
Kickbacks
this should be called the Z of Tvs ,No matter how many Caps you change it wants MORE, Smart folks get my drift.
i have one of those black & decker screwdrivers could do a tear down replace batt clean
Nothing like watching "Magic Smoke!"
This really reminds me of the movie from Pirates of Silicon Valley when Steve Wozniak had accidentally place the wire on the motherboard wrong and cause to have components short after he installed the motherboard kit to make computer in the bedroom.
A horizontal output with no heatsink? Is it missing, or is that normal for this era of TVs? Thanks for the video. Look forward to the next one.
Most did but some of the small sets like this didn't.
Hah, that smoke reminded me of indoor fireworks at my Grandparents at Xmas time as a youngster in the 60's. Should have left it a bit longer to get hotter to desolder itself!! 😀
I could not have kept powering that up. I had a few zenith with a bad regulator but it was a 5 lead chip on a heatsink.
Am I missing something or does that design actually NOT have a heatsink on the horizontal out transistor?
Prison set popping caps left, right, and center. Why am I not really surprised about that?
That's a spicy set!
Living vicariously through the trials by fire, through the magic of internet packet transmissions. Rock on. The video is cool, dude. Here's to hoping you obtain the part somehow, costly or not. Maybe there is a potential donor at a viewer's location? That would rock on, too.
"We have drive" while it smokes to death
I hope you can fix it. I guessed what the problem was, lucky guess, but you gave me the clue.
It's fixed
by part you mean that doughter board circuit? i am pretty sure it can be rapaired offboard and then put back on.
that what i would try anyway with something like that before searching for a new one. looks like some comparator circuit with 2 opto couplers so just checking all parts should get you close?
i really love your videos and this was kind of exciting, but i really hoped you show a solution
any idea when part 2 might be on?
The module costs less than 10.00 so why would anyone attempt to repair it?
@@12voltvids fun i guess or being curious
Once that avalanche zener diode blows that feedback control module is bad I repaired lots of those televisions here in jamaica years ago but they are not around anymore
Yes i know. The module has been replaced
As long as that sub board that's defective is not encased - it looks like those components should be able to be sourced out and that regulator board can be rebuilt, but micro soldering would be involved. Holy smoke Dave - I bet that was a stinker of a set...
You're forgetting that there are thin film resistors on that board under the paint. If you knew the values one could be built but the part is only 7.50 so why would one bother. It's readily available.
@@12voltvids Ohhhh Yep that makes sense, but I was suggesting - if as you said that it's readily available - but if it wasn't available, could it be rebuilt, as you say there are resistors that sound like they can't be removed due to being part of the board itself, 🤔 interesting 🤔, I would of never thought of that...
Well ya learn something new everyday. I'm just glad you didn't get hurt with that set, as it looked like a unpredictable smoke bomb with all those capacitors going up in smoke...
@@lawrencecavens5760 only my nose was assulted
9:48 The part where the TV goes up in Smoke.
I wish they sold those, I really like them.
When that 3rd cap went , you were in the frame then POOF you were gone ......Excuse the pun......
Hello,how do you protect your oscilloscope, do you use an active probe or a transformer for galvanic isolation? Thanks.
2 words.... Isolation transformer.
That’s nuts!
I only have 35 years experience. Worst experience was accidentally touching test port of radar transmitter . 6.3 GHZ at 10kw.
Dave, now might be the time to contemplate installing a smoke extractor, so you can shove all that magic smoke back into the electronics.
This TV smokes like locomotive steam powered machine :D
I wouldn't even think the demand for these transparent televisions would be small - Yes small compared to general population as it was when ,But there are bucket loads of prisons and I suspect the depend in this day and age would be quite high in terms of the home office entering into a contract with suppliers,compared to lcd sets that would be more expensive and have less robust security?
It's a cool tv !! Worth spending a buck on 👍👍👍
A prison set. Apparently the.prison system has, or had, a number of devices available to the population in the specified color (clear). Techmoan did a vid a couple of years ago on some of the stuff he was able to aquire.
Very enjoyable with all the "surprises'" the set threw at you. Thanks for all you do to teach and entertain us.
Yes I serviced quite a few in my shop days. They were always clear. Always wanted one. Still do, just for a display piece.
Did you change the shorted zener you found bad?
Not yet as it would blow immediately and take out more with it.
I honestly don't think it's a prison TV. Because I went to a my local TV place back in the day and bought one when they were on clearance.
I also remember seeing some colored transparent sets in stores. Kids sets but they did make them for prisons and the security torx screws is a dead giveaway. Consumer sets would use Philips.
I'd imagine a lot of prisons passed on buying any funky colors since they add an extra squint-factor to the contraband check.
@@arootube the few I worked in were clear. Was brought in by a guard that took them home after inmate finished sentence and left it behind. They all had speakers disabled and inmate had to use earphone. Brought in a few to have speaker reconnected.
I remember seeing this same set on an episode of The Price is Right.
@@jerryspann8713 they were sold to more than prisons but prisons required a transparant cabinet. The ones I worked on out of an actual prison were clear and had the inmates number engraved on the back. I guess some took their set with them when they got out and others abandoned them. A guard that lived local grabbed a few abandoned sets and took them home for his kids and I got the pleasure of fixing them. Those ones were 100 clear and RCA branded.
After the first cloud of smoke, would have gotten the schematic. Wasting time and caps. Incinerated 0.82 resistor ( 2 watt?) DEFINITELY a short involving high voltage.
No schematic available.
When parts 2?
It's already up.
@@12voltvids
I saw this video.
Thanks
I noticed you took your watch off cos the high voltage good job you did lol
I usually do when working around hv
@@12voltvids yeah you did last week working on the other CRT love your videos
Since it was made for use in a prison, I assume they didn't allow any tunnel diodes either :)
I don’t know if that’s actually a prison TV. There were a lot of transparent color electronics in stores in the late ‘90s, after the first iMac came out. I think my friend had one just like this.
Ugh, several smoking caps, my sympathies over the smell, one's bad enough. I've only had electro go bang on me, but those ones really belched out the smoke. I've had smoking tantalums, they've a very biting smell
DPM001-TI Original New Daewoo being sold for $24 on Ebay... but who knows if they're fake or not. Too much to spend on a chance I would think. Hope you find your way out of there when the smoke clears.
A lot of excitement in this one. I figured after the first one, that was it.
Well there's your problem that Hybrid was made by Daewoo! Their stuff was landfill quality right out of the box.
Ya think b
Factory smoked released for your aroma , and maybe a inmate left some crack on the board and the monitor geeking out .
Make sure you replace that smoke!
I have never seen an appliance blow up so many times.
That was exciting 😄
The white and blue ceramic chip on the main board not regulating the power supply
That's the part that was ordered.
Hey Medhi.. ops wrong channel again. Lol
the green gives me xbox vibes. turns out the original xbox had all the plastics were transparent but very dark
I once fell asleep watching tv and woke up to the most awful smell and found the big old power transformer burned up. Felt sick from it for about a day a awful feeling.
I once had a flyback fail on a TV in my bedroom and I had fallen asleep too. Rude awakening to smell of burning transformer.
If it's blown all the caps, it's probably overvoltaged and blown all the semiconductors as well.
Going to give me a heart attack lol. Watching this on my 49" lg repaired tv
Well tune for maximum smoke I always say
Sure did. No special effects here
381 Volts and climbing!
Panasonic vcrs used to do that. Would blow holes in all the chips.
@@12voltvids That's wild! 😅
Is that a prison TV? 3:44
It probably was.
The worst problem with this is how many other things does it take out during this process of things blowing.
That's the big question mark
you said, "Is this thing going to keep popping caps" on a prison TV. That's funny considering what "popping caps" means in prison lingo!!!!!!!!!!!!