Hi Dave. Its Martyn Heelam, From The UK. I must Thank You For Helping Me With Me Watching Your Fault Finding Video's For The Panasonic DMR EH50 DVD & HDD Recorder. Because I Have Found Of 1 EH50 The The 3 Capacitors That Have Bulged. The Only Thing That I Haven't Done Is Got The Voltage Readings. Thanks Again. I am also a Radio Amateur Too. I Used My Local Repeater In Dukinfield in The UK which Is On 430.900 Mhz. I am Only a M3JLY. Thanks Again Regards Martyn Heelam.

Regarding filter caps and going up in value: The only time I have seen this be a problem is if you have multiple power rails and you go high enough that one rail drops slower than the rest when the power is removed. This can kill some older logic that requires multiple supplies. 4116 DRAM chips are notorious for failing because of this. Adding a bleeder resistor isn't a bad idea if you're beefing up the filters.

These have a very nice and unique analog filter that is able to remove some VHS tape noise when digitizing. It can be turned on/off from the menus (don't remember where since I haven't used mine in a while...) That filter is still unparalleled in many pro/semi pro preservation service providers opinion (just take a look on videohelp.com, a very old site that's frequented by some of them). It's the same filter that's on the ES10 and probably some others of the same date/range. Some of those guys providing the digitizing service buy ES10s and others just for that filter... Out of curiosity, I repaired a DMR EH60 (practically same machine except for firewire output and bigger HDD) about 3 years ago that, as yours, wouldn't turn up. Without knowing cr*p about it I just opened it up to take a peek and noticed a bulging cap, probably same area as the one on this video. Just replacing that cap solved the problem. I'm now tempted to go and change the other Elnas, though I don't know if I'll have the patience.... :) Cheers

@bsanchez3563

Жыл бұрын

Cool no joke not sarcasm

Really nice troubleshooting vid!

Good video. Thanks for uploading it

Dave, good troubleshoot video.I have a somewhat similar DMRE85 H Recorder with a 120 Mg hard drive that I've replaced the 5 pin MR1421 chip mounted on the heat sink. They're pretty cheap and usually take care of the power supply problems. Good luck, they're useful as well as enjoyable....

@12voltvids

4 жыл бұрын

They are problematic

Yes! I agree; I also up the capacitor value without issues.

amazing video.thenks

18:39 Kanban system for the win, surprising to see such close date codes on the PSU and HDD though even with it being a Japanese idea...

Good video. I hope you find the IC and do part-2. Good machines are worth it.

@12voltvids

4 жыл бұрын

The ic is 20km away. I just can't go over and pick it up because the city shut down the parts supplier whom worked out of his house so I have to do mail order and pay double the price for shipping.

@rogerfurer2273

4 жыл бұрын

@@12voltvids Ali Express: www.aliexpress.com/item/32725774851.html Hope it helps.

4 жыл бұрын

@@12voltvids coming from US or Canada?

@12voltvids

4 жыл бұрын

@@rogerfurer2273 Way way way too much. It is something like 5.00 CDN locally.

@12voltvids

4 жыл бұрын

@ The part is a 20 minute drive from my house, but I can't just go there and buy it because the city shit on him for running a business out of his house, so he can only do main order now that they have driven him under ground.

is that maxtor loud ? I remember them having ball bearings and whining while Quantum (last model they designed but sold as maxtor I believe) already started with fluid dynamic bearings on the D740X-6L. That was a good HDD that you can recognize from their whine while powering up /down but powered up are very silent)

Also having a built in vcr to a dvd recorder is for the win because if you have even one vhs tape it is easy to put it in the machine an simply have it with the ability to watch, not to mention also for videogames and stuff to be able to plug it in with no non hdmi hookups on a tv since the often when brand new no longer typically tend to have the right hookups.. or anything analog av etc

I have one of these and got a lot of use of it...really like it...lately when its powered on on the right back side im getting a buzzing motor sound like there may be something going out on it..

Hi, I've just recapped a very similar model (DMR ES20) totally dead but now running, my problem now is the door on the DVD section sticks shut every so often, I've fitted a new belt which made it better but I feel I can't hand it over with this fault. If I remove the top of the dvd drive it works 100% . It seems like something with the mechanism is causing it to jam , any ideas / experience ? Thanks

With alot of DMR Panasonic Hard drive units the small pcb boards cause a u99 code issue have u ever found a fix for that or came across that problem before thanks

Here in NZ at least somewhat newer Panasonic HD DVRs(like DMR-XW390,XW440) still have analog av inputs(and sometimes DV in), the conversion quality from VHS seems similar to older HDD/DVD recorders. They have DVD writers, but the videos can also be copied from the HDD across the network to a PC, because of the DLNA feature - it's a bit slow, but not too bad.

I owned similar Pana - got zot'st by lightning - PS squeaked for a while, then it died. Kept it for a couple decades, no motivation to repair it; eventually recycled it. No worries, you'll find a suitable parts donor and fix it up; no doubt. You keep on...

@12voltvids

4 жыл бұрын

Why parts donor. Ic is readily available.

@FindLiberty

4 жыл бұрын

@@12voltvids GREAT!

@RoughJustice2k18

4 жыл бұрын

He would only need a "parts donor" if a replacement component is not available e.g. a transformer or door panel.

I used one of these for a while until satellite dvr and internet videos took over, it was good for recording and editing wedding videos.

Can you please answer this question about Panasonic DMR-EH50? Q: The last weekend, I got my father's old EH50. I plugged the following cables; audio left (between DVD audio left out and TV audio left in), audio right (between DVD audio right out and TV audio right in), video (between DVD video out and TV video in), and of course the power cable. My TV is 32'' T4305 Samsung Smart-TV (2020). Everytime I play DVD (RW or Video), I see the video but I can't hear anything. What went wrong? Did I forget to plug some cables, or did I plug the audio cables incorrectly?

Is the processor under that hot spot on the board or is that just a regulator? I thought the smaller green board at the front was the entire digital section. Regarding commercial skip, my PC (with CableCARD tuners) scans finished recordings for commercials and makes an edit list. One of the big reasons I don't want to ever have to rent a DVR from a cable company. Very few channels actually apply the copy-once/copy-never flags, so I own the recordings I make forever.

@12voltvids

4 жыл бұрын

I didn't pull the board but from the size of it, it appears to be a CPU. Since I don't have a manual I can't tell you what the green board is. Could be video compression, or memory for buffer. Don't know, don't care. This is a power supply problem and that is what I worked on.

Hi, I have the same EH50 unit. It has developed fine horizontal lies over entire screen on playback of recordings (old and new) and also live cable tv routed through it. Still viewable but not like it should be. Checked all cables and ports same problem. Any ideas? I replaced some caps after it wouldn't turn on months before this problem and unit worked fine for about six moths. Then I got the the lines. Thanks!

@12voltvids

3 жыл бұрын

Sure sounds like caps in the power supply to me.

I still have my E80H though it's retired. I got a Pioneer DVR-640H-K and a DVR-650H-K for next to nothing a couple years back. I use those all the time. Wish I could get a 660 to round out the collection. I had quite a few recorders in the day, depending on what I was using them for...Liteons to circumvent macrovision, Panasonics to smooth out video and the Pioneers for LPCM recording. On a side note, did you ever get around to making a video on getting Beta decks to track finicky tapes as you did with the one using a VHS deck? I acquired an old Tek scope recently but I have to figure out how to use it again. Did you ever get better with using the digital model you bought? Also, in your opinion, what were some of the best Betamaxes ever made? Several people I know went out and bought SL-HF2100s that were rebuilt units. They have autotracking but I always wonder why Sony only put it on the one deck. Also looking to replace the Panasonic AG-1980P SVHS deck with a DVHS deck but don't know what models are the best. Recommendations? Great vids as always...

@12voltvids

4 жыл бұрын

The digital scope I bought is a piece of shit. It will not measure analog video signals at all. It is not about getting better at using it. The model I was duped into buying from Lee's electronics does not have the capability and I found this out about 30 minutes after I plugged it in, but all sales final there. There are 2 models of what looks like an identical scope. One will measure analog video no problem as it will lock onto the sync pulse but this one will not.

@12voltvids

4 жыл бұрын

Digital tracking is snake oil. An analog tracking control is always better. Digital tracking is set by the rf level and on poor tapes the level is low so the machine just hunts. The best beta deck that Sony produced was the slhf1000 or 3000 for japan. As to dvhs I do not have an opinion as i never went down that road. I had moved onto hdv by that time and never looked back. I never used VHS personally, just as a distribution format. I was a very early adopter of NLE and used digital 8 as a mastering format and then to hdv as soon as hd became available.

@hawleygriffon9290

4 жыл бұрын

Thanks again for the quick reply. I got my SL-HF750 repaired down in Toronto as the last repair place in town could not fix it. But I still have a bunch of tapes that simply won't track in it (mostly Japanese X-3 speed recordings). Maybe an adjustment of the tape path like you did with that VHS deck could fix that. Not on my 750 though. Maybe the 860D I hardly ever use. I'll have to show your comment to the people who bought the 2100s. Should be interesting. The Panasonic SVHS is flaky in that it sometimes plays tapes perfectly but will just stop for no reason in the middle of playback or else not accept the tape at all. That's why I'm in the market for something that will work for me.

Fixed many a switcher. Output caps never cause it to go dead, just weak. Start up cap fails often, will kill it, usually 12 volts or so on them, 47 uF typical. The resistors drop from the main cap, often fail. Yep the PWM chip died.

@12voltvids

4 жыл бұрын

That's my conclusion.

@markanderson350

4 жыл бұрын

@@12voltvids you hit the nail on the proverbial head. Not much left here.

@12voltvids

4 жыл бұрын

@@jasejj I don't watch KZread as a rule. I spend too much time on my channel to watch others. Have caught the odd technoan or bigclive video but that is about it.

I would be cautious about changing out the MOSFET. the MOSFET can't take too much heat when its being soldered. Good luck.

@12voltvids

4 жыл бұрын

Never cooked an ic by attaching it to heatsink. I know how to solder. You burned them up because you put too much heat on. Time to learn to solder properly.

@joey_after_midnight

4 жыл бұрын

@@12voltvids Sorry I didn't' mean to insult you. I actually like your videos. Looking forward to the next one. (I reduced my comment, hope its less offensive) Have a great day.

I have the same model. Just noticed a few days ago that it had no clock display. It’s dead also!

@12voltvids

4 жыл бұрын

Ic on psu if the power supply is dead

With multiple pins on that chip i think about TopSwitch ones, a commom one to go pop lol. I often check the outputs for short circuit first, when i forget to do the check the sh!tbags have a short :-D

That IC is the MR1521 and it's available on ebay if you really need it.

@12voltvids

4 жыл бұрын

It's available locally

@THEtechknight

4 жыл бұрын

I havent had locally available electronic parts (outside of radio shack) in over a decade. Must be nice. :)

@12voltvids

4 жыл бұрын

@@THEtechknight There are 3 parts dealers. 2 with store fronts that have limited parts, and one online that up until recently one could go to his house and buy parts but no more. They have to be ordered online but he has a relatively good supply of parts.

@THEtechknight

4 жыл бұрын

Ahh well at least there still a few somewhat local to you. I havent seen a local electronics supply house in years, the closest one to me where I used to live was Debco electronics, and the only reason why they were still around is they were big in the Dayton Hamvention.

I HAVE A PANASONIC DMR BWT 800 RECORDER IT STARTED LOOSING PICTURE AND MAKING LOUD SCRATCHY TYPE NOISES WITH THE SCREEN ON THE TV LOOKING LIKE IT IS OUT OF TUNE LOTS OF DOTS AND NOISY . I TUNED IT OFF LEFT IT FOR A WHILE IT THEN STARTED WORKING CORRECTLY FOR A DAY THEN STARTED THE SAME STUFF ALL OVER AGAIN ..NOW ALL I GET IS A BLANK SCREEN WITH THE WORDS NO SIGNAL !!1 I TRIED IT ON ANOTHER TV WITH DIFFERENT HDMI CABLES ETC TO MAKE SURE IT WAS THE PLAYER WITH SAME RESULTS ... NO SIGNAL .. THERE IS NO OBVIOUS BURNT CAPS ON THE BOARD THAT I CAN SEE ... THERE IS ONLY ONE HDMI PORT COMING OUT OF THE RECORDER SO CAN'T TRY A DIFFERENT PORT WHAT DO YOU SUGGEST ! PLEASE

Hello, great video! I needed to get something repaired, and I was wondering if I could get in touch with you.

25:36 gotta be a resistor? What about the bootstrap diode? Not as common, but Bigclive got bitten by that one once. Replaced the cap, checked the resistor & still dead. Edit- damn it was the IC itself... what was the part number on it? Hope you can find one to replace it.

Same deck here , I will get another one for £20 from the shops ,they are good decks . The SONY deck is reliable but the picture out put is a bit crap . Panasonic latest HD ? I will not take again for £20 , no more of those . Panasonic VHS at this time zone are grate stuff .

I have a philips model with dvd writer and 160gig hard drive it worked great, havent used it in a while but last month i fired it up and found that i still had like 20 movies recorded on it :)

@12voltvids

4 жыл бұрын

I picked up a Sony model with 160g hdd at an estate sale for 2.00. Someone took the remote. When I got it home it had about 200 hours of hard core porn on it. The factory remote was needed to access the menu to erase it. I got the second to last remote left at the national sony parts depot. The remote ended up costing me 95.00 by the time shipping was added. It took me a few hours to delete all those porn movies. I know, I could have formatted it but there were some great concerts and a few movies on it as well that I wanted to keep, so I had to go through and delete them one at a time. That unit will burn to dual layer dvd+r disks as well as dvd+re, DVD-r and DVD-rw.

@kirknelson156

4 жыл бұрын

@@12voltvids wow what a score, too bad the remote ended up costing so much, still even with the remote it was a steal compared to store cost :)

@shaun9107

4 жыл бұрын

@@12voltvids same here with the hardcore porn , they will never get any sex if they keep watching others do it on VID

@12voltvids

4 жыл бұрын

@@shaun9107 It was all deleted. The sony deck is in storage now.

@shaun9107

4 жыл бұрын

@@12voltvids not much for it myself . Sony RDR - HX 525 nice & simple editing . Good hard drives , take a lot .

Would you consider Elna to be good capacitors for audio purposes? Outside this case obviously 🙂

@bugdrvr

4 жыл бұрын

Not 12V but I have used Elna caps in many repairs with good results. The Silmic audio caps seem to be well made and last a long time. Not sure that I've ever been able to hear any difference between different caps but I suppose that depends on where in the circuit they go and how the device is designed.

Woah I did not know Ilink devices were even good for having on a non hdmi device since ilink is intended for hdtv so around 2004 onwards the devices for av typically use an hdmi maybe with sepersted audio for maintaining a level of the dvi port compstibility for a dvd player or cable box etc with dvi for a tv to recieve.

so good video .. but I want ask you about "capacitor wizard" for measure capacitor esr

@12voltvids

4 жыл бұрын

I did a video on the esr meter.

It's possible upgrade the storage of Hard Drive on this model?

@12voltvids

4 жыл бұрын

No, not without the software in the boot sector.

Maxtor. Those Hard Drives were known to fail

Along with the capacitors i would check for some zener diode maybe even in smd package or some smd transistor,or a startup resistor of some kilohm in the primary section in smd maybe and finally replace the power supply ic.

@12voltvids

4 жыл бұрын

I already found the root cause.

Oi boa noite querido o meu DVD panasonic dmre30 estava guardado aí quando liguei aparece U11 o que posso fazer para resolver isso.. muito obrigado boa noite querido.

Not a common thing to get Foobar'd. Maybe caused by static electricty jumping from the power outage??

@12voltvids

4 жыл бұрын

It worked before the power went down. Didn't come back on. Been down a few months. I better fix it before the lithium cell dies because if it dies I lose everything on hard drive. Same if I unplug hard drive and plug it back in. Tamper protection. I did that once and created a real shit storm because the owner had spent hundreds of hours archiving all his home videos. When I was working on it I unplugged the hdd connector to get at the DVD drive to replace a belt. When I plugged the drive back in and applied power a message came up telling me that the hatx drive had been tampered with and needed to be reformatted everything gone. The guy was really pissed about it. Demanded all his tapes be redone for free.

4 жыл бұрын

@@12voltvids Wow - that's some important information to know ! I don't come across these HDD versions often but that's some esoteric tamper protection..damn !

I Heard Those Samsung Caps Are Goodones Too.

I've got a similar one with bad caps..... but it basically was acting like the hard drive failed and wouldn't spin it up.

Esr meter is a magic box :)

Great repair.....oops.

I have virtually the same machine that needs repairing.

This model doesn't support DVD+RW. I know that because I have one. Very good machine indeed.

Have you ever used optical on a mobo or anything else? I haven't. Never even seen the optical cabling. Funny that; they give you that function but do not supply the cable to hook it up. For twenty years(?) I'd seen it back there; but never used it. Might make an interesting viddy to do - eh?

@12voltvids

4 жыл бұрын

?

@MrRadioGypsy

4 жыл бұрын

@@12voltvids The optical port/fiber optical audio cable ?

@12voltvids

4 жыл бұрын

@@MrRadioGypsy Oh the TOSLINK port. That is the digital audio out to connect to an amplifier. Normally that was an optional patch cord that you would buy and is required to get the discrete 5.1 channel Dolby AC3 or DTS sound.

@MrRadioGypsy

4 жыл бұрын

@@12voltvids OK; so how often is it really used? Ya think that the motherboard mfrs would include that cable with it by now. Guess I'll go to Epay and pick up a couple cables. Caveats?

@12voltvids

4 жыл бұрын

@@MrRadioGypsy Dollar store sells them for about 6 bucks.

I thought panasonic capacitors are supposed to be purportedly a plague of hassle such as with the dreaded panasonic black and blue vcr

I thought it would be the bootstrap cap, usually after a power failure it fail to recharge....but, power failures can be a bitch as you know, without a schematic it's that much harder to figure out, I really thought those bulging caps would resolve it..!! Well, good job.. Ttys.

@12voltvids

4 жыл бұрын

Bulging caps definately bad.

@12voltvids

4 жыл бұрын

That's what I figured going in. Bootstrap or bias resistor.

@frankpitochelli6786

4 жыл бұрын

@@12voltvids ....we'll wait for the next video to see what you came up with.

@12voltvids

4 жыл бұрын

@@frankpitochelli6786 The viseo is already up. Just only available for patreon viewers at this point. After they have seen it I will release and you will find out if I was right of if I was cursing.

@frankpitochelli6786

4 жыл бұрын

@@12voltvids ....lmao..I will await your emotions..... 😁 or 😡

I thought that the fuse was there to protect the entire circuit in case of power outages or overloads.

@12voltvids

4 жыл бұрын

The fuse is there to prevent a fire hazard due to a catastrophic failure such as a shorted component.

@hiramhernandez-ricoy.8461

4 жыл бұрын

12voltvids Ok,Is good to know,thanks for taking the time to explain that to me...Have a wonderful night.

😁😊😊

Sounds Like A fuse Or A Power Suply Issue

Wha wha wha whaaa

O meu é modelo DVD dmre30

What? No DVD+R DL? :)

@12voltvids

4 жыл бұрын

Not this one. My sony does that, but DVD+R DL was a flaky format to begin with. On every drive I have that supports the format, I have about a 60% suscess rate. So 3 out of 5 complete if I am lucky. Lots of coasters created on that format.

Maxtor that shit disk kills itself if unproperly cut power

@12voltvids

4 жыл бұрын

Never had any issues with maxtor.

Dvd oooh, dvd arrrghh, dvd Moooooo, dvd Pooh