Just wanted to say thank you for helping us who know just enough electronics to get ourselves in trouble sometimes. With your vast experience you have taught me so many repair techniques of older, vintage, audio, video devices. Showing us your approach to problem solving diagnostics, again I value your knowledge and very grateful to be able to watch your YT channel.
Pretty nice video. I have a similar model in need of maintenance, and though I don't have the same problem, seeing your approach and a reference for how it looks inside has been helpful.
Khan / Scorpio-II. This is a Samsung machine. Or Samshiba / Toshung... Also available with Sony branding here in Europe. They are good performers (except the linear audio is very poor, 100Hz-8kHz for PAL machines in SP with 42dB S/N), their weakest point is probably the clutch underneath the pendulum gear. With their crazy 400x speed rewind, the plastic arm that switches the clutch into FF/REW mode wears out, then it starts to rewind with the clutch engaged as in playback mode. The resulting friction melts the whole clutch disc. It was a cheap part, I bought one (the whole clutch assembly) in around 2008 for ~ $5. What a pity I haven't bought a dozen until it was available. Now the only way to repair them is to buy 2-head donor machines to repair the HiFi ones. Whoever wants/has to use these for high volume archiving, just keep an other machine for FF/REW the tapes, because otherwise that cluth will wear out sooner than later.
Hey Dave, you're right about the " again " punctuation if that word is correct, you are stating it correctly. We Americans are the ones who speak incorrect English as England is the mother country to the US.
Just thought I'd chime in to say thank you for this video. I have this same model, and it had developed a hunger for tapes. This showed me exactly where the mode switch was, so I cleaned it with Deoxit and a toothbrush, cleaned out the debris from the disintegrated internal head cleaner, gave everything a good cleaning with IPA inside, buttoned it up, and it's working like new. You wouldn't happen to know where the heck they hide the mode switch on a Mitsubishi HS-U448, would you? I have one that isn't accepting tapes, so I want to do a similar tuneup on that deck, but I can't find anything that looks like a mode switch for the life of me.
Samsung TS-10 mech, the last one they made. Found in some late-model Sony as well. Very simple and reliable, so much that they decided to add a deliberate weakness (tiny thin spokes) at the worm gear off the loading motor.
The clutch is also a weak point. I have seen many which was melted, because the crazy speed rewind worn out the plastic arm that bypasses it, so it started rewinding with the clutch engaged as in playback mode, which immediately melts it. I have an SV-240, which was the most basic Samsung model, 2-head, SP only PAL machine. The clutch is still good in that one, but the stationary tape guide next to the ACE head once flew off during rewind and hit the cover with a huge bang. I had to glue it back with super glue. There was some damage on the tape, or the tape pack stuck together and it caused a huge spike of back tension during the x400 speed rewind that ripped off the tape guide which was held on with some tiny snap-in plastic pegs...
I think they were still manufactured under Toshiba until around 2002, them Thompson got involved in manufacturing, then eventually Funai. Toshiba VCRs (prior to Funai) were known for reliability overall, and the best era was the ones made by Toshiba themselves. Even their belts didn’t really fail with age (aside from the 1980’s ones). They could build them on a budget and make them reliable and also build high end models too. Power Supplies and Capacitors were solid and they rarely ate tapes. Their on-screen display was a little lackluster but you’ll see more Toshiba VCRs working with little to no repairs as time passes than many other brands.
No, Samsung had been producing VHS VCRs for Toshiba since 1988 year, actually, beginning with M-6003 model. By 1990, over 60% of Toshiba VCR models sold in the US were made by Samsung, IVP Thomson, or Shintom. By 1992, the percentage increased to 95%. The remaining 5% were time-lapse/medical-grade VCRs produced by Toshiba in Japan.
@@waltchan Yep your dead on correct. Even most their highend VCR were junk at this point, only the time-lapse/medical-grade VCRs produced by Toshiba in Japan.
@@thetechgenie7374 Imagine if Panasonic AG-1980P was made by Toshiba instead with one of their time-lapse industrial mechanism. Reliability would be 500% better easily. Panasonic was the wrong manufacturer for the pro industrial market, so reliability ends up to be terrible with many, many sad faces by people.
@@waltchan Can you site some sources? I wasn’t aware of this. I have maybe 50+ vcrs still in storage, and the Toshiba ones are the ones I know will just work when plugged in regardless of age. The rest are hit and miss depending on model and year. I have one 80’s quasar I converted from a friction tire drive to a gear drive in the 90’s that’s my other most reliable of the group.
@@scottyfixit You would need to find a used 1988 Toshiba M-6003 VCR and open it up, which was assembled by Samsung. The electronics used only Samsung-made chips with Toshiba-designed mechanics. Also, at the back of the VCR, if it says "A3L," as old as 1989 models, it was fully made by Samsung. By 1990-1991, International Video Products was formed in Singapore as a joint-venture between Toshiba and Thomson, which lasted until 1997. By 1998 to 2001, some Toshiba VCRs were assembled by Venturer Electronics in China, along with DVD players too. Then it's Orion in the mid-2000s, then Funai in early-2010s, and finally new Toshiba TVs are made by Hisense. That's the whole story for Toshiba. Toshiba has always been a marketing trademark name, not necessary as a manufacturer.
Well done, another vcr Not going to recycling 😀 If it plays up, maybe push some wire insulation on to that pin, keep the crappy arm falling off. Can't beat Free :-D Unusual mode switch.
I believe these samsung mechs are susceptible to a failure in a couple of gears just below that idler system. I think they are 2 press fit parts and over time when using the hyper fast forward and rewind, the torque cracks the plastic making them slip and fail to advance the tape. The very late version of this mech used a plastic guide pin for tension near the pinch roller too.
I've never been convinced that the head drum design was sufficient to produce enough airflow between the drum surface/heads and tape to accommodate that lightning fast, threaded rewinding. My luck was also bad with the machines I encountered with that feature, as they always tended to curl the control track edge of the tape to the point of rendering it unplayable. Nice idea in theory, but unthreading before rewinding always seemed the better choice to me (cheap, standalone rewinders popped too many tapes!).
I have a question for you given all the experiments you do 😉. Do the heads get damaged when using metal tape in a standard VHS? obviously to record in composite
16:16 - I've heard from an Aussie, a US American, and a Canadian before, many years ago, that Canada is NOT America. And years later I made a meme of it. As far as my geography education tells me, even Greenland is a part of North America, even that it's Danish territory (the AC freq there is 50 Hz!). Insert here that Jackie Chan meme as he's holding his head. (That's not the one I made.) IMO this thing got a neat mech. Very simply built.
@@12voltvids EVERY land from almost the North Pole down to Argentina and Chile's Tierra del Fuego IS AMERICA. The United States OF America is JUST a country in America, so its name contains an "OF" for that reason. Even Bermuda, The Bahamas and the Caribbean Islands ARE AMERICA! So, YOU and ME are AMERICANS, you a Canadian American and me a Puertorrican American!
The Internals on that Toshiba HiFi VHS look identical to my Sony SLV-EZ725, the main PCB, the video head drum, transport mechanism, mode switch, power supply, display, are all the same even the mounting screws are in the same position. Even the fast rewind and transport operations work the same too, gee things got cheap 🙁
Good to keep the cheap ones, even if not worth money, as if the tape your transferring was recorded in a misaligned, you have a deck you can match the misalignment with and transfer tape over. Reason I keep a couple around, better then misaligning guides on my good machine. Toshiba and broken guides is very common, hence avoid them for that reason, seen it even on 2k plus Toshiba decks, hate that they used cheap plastics that crack on high stress parts?
Is rewinding the entire tape while the heads are still touching a relatively harmless type of wear? Earlier models seem to retract the tape before going full blast. Also, how does it detect when it's near the start to slow down? Simply tracking the reel speeds?
Doubt it could be that bad since pretty much all VCR manufacturers starting in by the early 90s switched to doing it so the tradeoff must have been worth it.
Yes it monitors the speed of the reels, and that's also how machines calculate the remaining time on the tape. I do prefer rewinding with the tape retracted.
Beta machines never retracted the tape. Well most beta, sanyo did but the rest didn't. 8mm and DV also kept laced except for 2 hi8 models. Evs5000 and 7000 had a high speed rewind mode. It would unload to rewind a good portion and then reload for the last bit. Same with some Sony VHS had a high speed rewind that unlaced.
@@12voltvids What wears the heads down is the amount of back-tension which is administered by the back tension arm. This is partially disabled during search function as some back-tension is required for the heads to penetrate the tape and make contact, but during fast wind, back-tenson is very low. The tape also stays in contact with the control head to count pulses so you know how far you are into the tape in HMS. I think I stil have a tentelomter somewhere for adjusting the tension and also an eccentricity guage for Umatics and Betacam decks I worked on laterally. If anyone has a set of Pana heads, VEH0415, let me know!
I seen all your videos ! Except the camera ones ! I hate to work with those wery complicated mechanics,and electric stuff ,, i work must with Turntables and speakers ,, thath gets a new Foam , and a little strong hair spray to the spindel , works greath , but only a quick dust ,,, so its not finds it way down to the Voice Coil !! Have done this for ower 15 -years now , and no recklaims so far !!!
giant black loading gear gives it away, yup. Got a Sony with the same design, actually. EDIT: oh yeah 60 second rewind is a feature of this mechanism. very handy.
@@kyoudaiken They're bugdet machines but they're not quite as budget as the late model Funais - like they didn't cheap out so much to solder the cables going to the going to the mechanism instead of using connectors.
Yeah they seem to have had some deal with samsung in the early 00s, they had a short time where they seem to have sold both vcrs with own designs and cheaper samsung models and some that used their own design but the samsung mechanism. The later toshibas brand are made by Orion and the last ones by funai I believe.
Nothing wrong with plastic. Don't abuse it. Plastic can break if forced and some types shrink which causes cracks when placed over metal shafts for example but it doesn't require lubrication like metal does and it doesn't oxidize like metal. When metal is exposed to oxygen it forms an oxide layer. That's why we put grease on it to keep the air away. Grease dries out parts seize. I used to push the Panasonic and Mitsubishi aluminum dicast chassis bullshit. Those machines required far more service. That's good if you are in the business of servicing them however when. You service a machine and the customer uses it 3 times then puts it in storage to haul it out next year and it's frozen again they are not happy. That doesn't happen with plastic. Just be gentle when you load and don't put wet cleaning tapes in it. My plastic Panasonic has probably had 2000 tapes through it is not more. The majority of plastic failures is rough handling or volatile cleaners used.
And my JVC HRS 5950 (Late S-VHS unit) has the slowest rewind I've ever seen, even slower than a '82 Fisher VCR... That JVC is complete garbage and already broke several times, but I try to keep it running
Damn, this thing screams cheap. Probably a Funai mechanism. I guess the lubrication got sticky and it kicked its own butt. Look at the yellowing of the plastic gears. Guess the lubrication has been absorbed into the plastic. I absolutely despise plastic. This shit should be banned by law.
Metal mechanisms were no better. Moisture present in the air caused them to rust and stick together. Dual and Garrard recurd changers, Panasonic and mitsubishi aluminum dicast VCR, Sony and also reel to reel. Metal chassis much more problematic.
Just wanted to say thank you for helping us who know just enough electronics to get ourselves in trouble sometimes. With your vast experience you have taught me so many repair techniques of older, vintage, audio, video devices. Showing us your approach to problem solving diagnostics, again I value your knowledge and very grateful to be able to watch your YT channel.
Been too long since i've watched you,HUGE fan of yours here in the U.S. ,always very informative 🙂.
Pretty nice video. I have a similar model in need of maintenance, and though I don't have the same problem, seeing your approach and a reference for how it looks inside has been helpful.
I've got one of these Toshiba W522 as well. It's my favorite machine for rewinding tapes 👍
Khan / Scorpio-II. This is a Samsung machine. Or Samshiba / Toshung... Also available with Sony branding here in Europe. They are good performers (except the linear audio is very poor, 100Hz-8kHz for PAL machines in SP with 42dB S/N), their weakest point is probably the clutch underneath the pendulum gear. With their crazy 400x speed rewind, the plastic arm that switches the clutch into FF/REW mode wears out, then it starts to rewind with the clutch engaged as in playback mode. The resulting friction melts the whole clutch disc. It was a cheap part, I bought one (the whole clutch assembly) in around 2008 for ~ $5. What a pity I haven't bought a dozen until it was available. Now the only way to repair them is to buy 2-head donor machines to repair the HiFi ones.
Whoever wants/has to use these for high volume archiving, just keep an other machine for FF/REW the tapes, because otherwise that cluth will wear out sooner than later.
Hey Dave, you're right about the " again " punctuation if that word is correct, you are stating it correctly. We Americans are the ones who speak incorrect English as England is the mother country to the US.
Bullwinkle: "Watch me pull a rabbit out of my hat." Rocky the Squirrel: "Again?" 🙂
Just thought I'd chime in to say thank you for this video. I have this same model, and it had developed a hunger for tapes. This showed me exactly where the mode switch was, so I cleaned it with Deoxit and a toothbrush, cleaned out the debris from the disintegrated internal head cleaner, gave everything a good cleaning with IPA inside, buttoned it up, and it's working like new.
You wouldn't happen to know where the heck they hide the mode switch on a Mitsubishi HS-U448, would you? I have one that isn't accepting tapes, so I want to do a similar tuneup on that deck, but I can't find anything that looks like a mode switch for the life of me.
Samsung TS-10 mech, the last one they made. Found in some late-model Sony as well. Very simple and reliable, so much that they decided to add a deliberate weakness (tiny thin spokes) at the worm gear off the loading motor.
The clutch is also a weak point. I have seen many which was melted, because the crazy speed rewind worn out the plastic arm that bypasses it, so it started rewinding with the clutch engaged as in playback mode, which immediately melts it. I have an SV-240, which was the most basic Samsung model, 2-head, SP only PAL machine. The clutch is still good in that one, but the stationary tape guide next to the ACE head once flew off during rewind and hit the cover with a huge bang. I had to glue it back with super glue. There was some damage on the tape, or the tape pack stuck together and it caused a huge spike of back tension during the x400 speed rewind that ripped off the tape guide which was held on with some tiny snap-in plastic pegs...
I think they were still manufactured under Toshiba until around 2002, them Thompson got involved in manufacturing, then eventually Funai. Toshiba VCRs (prior to Funai) were known for reliability overall, and the best era was the ones made by Toshiba themselves. Even their belts didn’t really fail with age (aside from the 1980’s ones). They could build them on a budget and make them reliable and also build high end models too. Power Supplies and Capacitors were solid and they rarely ate tapes. Their on-screen display was a little lackluster but you’ll see more Toshiba VCRs working with little to no repairs as time passes than many other brands.
No, Samsung had been producing VHS VCRs for Toshiba since 1988 year, actually, beginning with M-6003 model. By 1990, over 60% of Toshiba VCR models sold in the US were made by Samsung, IVP Thomson, or Shintom. By 1992, the percentage increased to 95%. The remaining 5% were time-lapse/medical-grade VCRs produced by Toshiba in Japan.
@@waltchan Yep your dead on correct. Even most their highend VCR were junk at this point, only the time-lapse/medical-grade VCRs produced by Toshiba in Japan.
@@thetechgenie7374 Imagine if Panasonic AG-1980P was made by Toshiba instead with one of their time-lapse industrial mechanism. Reliability would be 500% better easily. Panasonic was the wrong manufacturer for the pro industrial market, so reliability ends up to be terrible with many, many sad faces by people.
@@waltchan Can you site some sources? I wasn’t aware of this. I have maybe 50+ vcrs still in storage, and the Toshiba ones are the ones I know will just work when plugged in regardless of age. The rest are hit and miss depending on model and year. I have one 80’s quasar I converted from a friction tire drive to a gear drive in the 90’s that’s my other most reliable of the group.
@@scottyfixit You would need to find a used 1988 Toshiba M-6003 VCR and open it up, which was assembled by Samsung. The electronics used only Samsung-made chips with Toshiba-designed mechanics. Also, at the back of the VCR, if it says "A3L," as old as 1989 models, it was fully made by Samsung. By 1990-1991, International Video Products was formed in Singapore as a joint-venture between Toshiba and Thomson, which lasted until 1997. By 1998 to 2001, some Toshiba VCRs were assembled by Venturer Electronics in China, along with DVD players too. Then it's Orion in the mid-2000s, then Funai in early-2010s, and finally new Toshiba TVs are made by Hisense. That's the whole story for Toshiba. Toshiba has always been a marketing trademark name, not necessary as a manufacturer.
Well done, another vcr Not going to recycling 😀
If it plays up, maybe push some wire insulation on to that pin, keep the crappy arm falling off.
Can't beat Free :-D
Unusual mode switch.
It's not loose.
Great score and a lovely job 😊👍
I believe these samsung mechs are susceptible to a failure in a couple of gears just below that idler system. I think they are 2 press fit parts and over time when using the hyper fast forward and rewind, the torque cracks the plastic making them slip and fail to advance the tape. The very late version of this mech used a plastic guide pin for tension near the pinch roller too.
I've never been convinced that the head drum design was sufficient to produce enough airflow between the drum surface/heads and tape to accommodate that lightning fast, threaded rewinding. My luck was also bad with the machines I encountered with that feature, as they always tended to curl the control track edge of the tape to the point of rendering it unplayable. Nice idea in theory, but unthreading before rewinding always seemed the better choice to me (cheap, standalone rewinders popped too many tapes!).
Your videos are great thanks
The Panasonic DMR-EZ48V use the same design mode switch with cam lobes...
Still love your Canadian accent.
Моё уважение Ирландцам и Шотландцам, за то, что они продолжают борьбу с англичанами, и помнят как британцы делали Вас рабами
I have a question for you given all the experiments you do 😉. Do the heads get damaged when using metal tape in a standard VHS? obviously to record in composite
16:16 - I've heard from an Aussie, a US American, and a Canadian before, many years ago, that Canada is NOT America. And years later I made a meme of it. As far as my geography education tells me, even Greenland is a part of North America, even that it's Danish territory (the AC freq there is 50 Hz!). Insert here that Jackie Chan meme as he's holding his head. (That's not the one I made.)
IMO this thing got a neat mech. Very simply built.
Canada is not America. We have a prime minister and our head of state is the king of England not some washed up old man with the title president.
@@12voltvids EVERY land from almost the North Pole down to Argentina and Chile's Tierra del Fuego IS AMERICA. The United States OF America is JUST a country in America, so its name contains an "OF" for that reason. Even Bermuda, The Bahamas and the Caribbean Islands ARE AMERICA! So, YOU and ME are AMERICANS, you a Canadian American and me a Puertorrican American!
The Internals on that Toshiba HiFi VHS look identical to my Sony SLV-EZ725, the main PCB, the video head drum, transport mechanism, mode switch, power supply, display, are all the same even the mounting screws are in the same position. Even the fast rewind and transport operations work the same too, gee things got cheap 🙁
Everything was down to 1 manufacture by this point.
Good to keep the cheap ones, even if not worth money, as if the tape your transferring was recorded in a misaligned, you have a deck you can match the misalignment with and transfer tape over. Reason I keep a couple around, better then misaligning guides on my good machine. Toshiba and broken guides is very common, hence avoid them for that reason, seen it even on 2k plus Toshiba decks, hate that they used cheap plastics that crack on high stress parts?
Yes I keep an old sharp hi8 camera just for malaligned tapes.
13:41 - There are infinite number of ways to Rome.
Is rewinding the entire tape while the heads are still touching a relatively harmless type of wear? Earlier models seem to retract the tape before going full blast. Also, how does it detect when it's near the start to slow down? Simply tracking the reel speeds?
Doubt it could be that bad since pretty much all VCR manufacturers starting in by the early 90s switched to doing it so the tradeoff must have been worth it.
Yes it monitors the speed of the reels, and that's also how machines calculate the remaining time on the tape. I do prefer rewinding with the tape retracted.
Beta machines never retracted the tape. Well most beta, sanyo did but the rest didn't. 8mm and DV also kept laced except for 2 hi8 models. Evs5000 and 7000 had a high speed rewind mode. It would unload to rewind a good portion and then reload for the last bit. Same with some Sony VHS had a high speed rewind that unlaced.
@@12voltvids What wears the heads down is the amount of back-tension which is administered by the back tension arm. This is partially disabled during search function as some back-tension is required for the heads to penetrate the tape and make contact, but during fast wind, back-tenson is very low. The tape also stays in contact with the control head to count pulses so you know how far you are into the tape in HMS. I think I stil have a tentelomter somewhere for adjusting the tension and also an eccentricity guage for Umatics and Betacam decks I worked on laterally. If anyone has a set of Pana heads, VEH0415, let me know!
@@thejoyoffix4720 more than back tension is the tape formulation.
I have a sony slv-n51 that is Identical to that unit. The only difference is the faceplate
I like to hear British and Canadian accents. I like the way the British say GARAGE
Got a friend married to an American from the deep south. Can barely understand her. Y'all git ur ass ooverr heeere.
@@12voltvids lol thats so funny!
Piciked up 2 32 inch sony LCD tvs which is good for free all working hear. some one wants to buy one next week.
Oops! Great job.
Maby the VCR has been droppet hard , thath made the metal arm to pop off !
Doubt it, there would have been physical damage. My Panasonic fell 2 feet and cracked the front panel.
@@12voltvids strange foult,,,kan not remember seeing thath before , no missing C - clamp or anything that keeps it in place ?
I seen all your videos ! Except the camera ones ! I hate to work with those wery complicated mechanics,and electric stuff ,, i work must with Turntables and speakers ,, thath gets a new Foam , and a little strong hair spray to the spindel , works greath , but only a quick dust ,,, so its not finds it way down to the Voice Coil !! Have done this for ower 15 -years now , and no recklaims so far !!!
@@kjellnilsson1615 nope it's springy.
@@12voltvids did you compared how it's looks one the left side ,, ?
This VCR was made by Samsung for Toshiba. 0% Funai here.
Yup totally different from the Toshiba funai and looks different than the Samsung that I have. Looks well built.
Well Samsung has the same low standards just like Funai, so who gives.
giant black loading gear gives it away, yup. Got a Sony with the same design, actually. EDIT: oh yeah 60 second rewind is a feature of this mechanism. very handy.
@@kyoudaiken They're bugdet machines but they're not quite as budget as the late model Funais - like they didn't cheap out so much to solder the cables going to the going to the mechanism instead of using connectors.
Yeah they seem to have had some deal with samsung in the early 00s, they had a short time where they seem to have sold both vcrs with own designs and cheaper samsung models and some that used their own design but the samsung mechanism. The later toshibas brand are made by Orion and the last ones by funai I believe.
Plastic but good its a stereo one and was also free to
Nothing wrong with plastic. Don't abuse it. Plastic can break if forced and some types shrink which causes cracks when placed over metal shafts for example but it doesn't require lubrication like metal does and it doesn't oxidize like metal. When metal is exposed to oxygen it forms an oxide layer. That's why we put grease on it to keep the air away.
Grease dries out parts seize. I used to push the Panasonic and Mitsubishi aluminum dicast chassis bullshit. Those machines required far more service. That's good if you are in the business of servicing them however when. You service a machine and the customer uses it 3 times then puts it in storage to haul it out next year and it's frozen again they are not happy. That doesn't happen with plastic.
Just be gentle when you load and don't put wet cleaning tapes in it.
My plastic Panasonic has probably had 2000 tapes through it is not more. The majority of plastic failures is rough handling or volatile cleaners used.
Was not expecting that rewind speed from such a cheap looking mech.. That looks about as fast a Mitsubishi HSM-59 which has a 250X rewind speed.
And my JVC HRS 5950 (Late S-VHS unit) has the slowest rewind I've ever seen, even slower than a '82 Fisher VCR... That JVC is complete garbage and already broke several times, but I try to keep it running
Samsung advertised 400x speed with these mechanisms. It often destroys (melts) the clutch.
And you say solder properly and not soder with no L
Yup, and the same troll starts frothing at the mouth over that too.
Damn, this thing screams cheap. Probably a Funai mechanism. I guess the lubrication got sticky and it kicked its own butt. Look at the yellowing of the plastic gears. Guess the lubrication has been absorbed into the plastic. I absolutely despise plastic. This shit should be banned by law.
Metal mechanisms were no better. Moisture present in the air caused them to rust and stick together. Dual and Garrard recurd changers, Panasonic and mitsubishi aluminum dicast VCR, Sony and also reel to reel. Metal chassis much more problematic.
More likely they stuck an alsop wet cleaner in avd it jammed.
Mechanism was made by Samsung.
@@waltchan i figured either Samsung or funai. The board was made by Khan
@@12voltvids Or at the back of VCR on specification sticker, it will say "A3L" as the first 3-digit of FCC-ID. That means made by Samsung.
It's a samsung not funai!!
Love your videos i am a big fan!!
Doesn't really matter. Same low quality standards.
If you where if Scots decent yuu'de speak scots , no such thing as british english also