Tascam DA-45HR high resolution DAT recorder. Broken power supply?
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- Опубликовано: 23 мар 2020
- We have another Tascam DA-45HR high resolution DAT recorder. This seems to have a broken power supply. Also comment on the present situation for self-employed people.
See my other video on the same model of DAT recorder: • Tascam DA-45HR High Re...
Audio and video transfers: www.video99.co.uk/
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Music “Let It Run” with permission, copyright Cristie/MacFarlane.
JC Haywire show us how to use DDS drives to transfer DAT tapes to WAV files:
• How To Use DDS Drives ... 
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Anybody worked out what was going on in the background at the start of this video?
Heuuu, no, i don't see !
@@aldomaccaroni6518 Well the clue is here: ruclips.net/video/8IbpKwGfu74/видео.html
I would take bit depth over sample rate. For example, these days I’m transferring some tapes, and I decided to go for 44,1/24 with my Tascam SD-20M. The reason is that I normalize the recordings on the computer afterwards and convert it back to 16 bits (as per the client’s request). If I’d be recording at 16 bits, I would lose resolution by amplifying the signal.
There are many tapes recorded with different levels (from different decades - from the 60s until the early 90s) on different tapes (from Agfa Type C to BASF SM911) and this way I don’t have to adjust the input gain of the recorder all the time.
Well, that's one satisfying repair job !
More bit depth, gives you more dynamic range, about 144db at 24 bit Vs 120 db at 16 bit. This means essentially, an amazing increase in signal to noise ratio or headroom , which is needed in digital mixers.
For example, Reaper, the Digital Audio Workstation that I use to produce my music, has an internal mixer at 32 bit with floating point, which provides a dynamic range of over 1000 dbs.
In practical use, a 24 bit recorder allows you to record audio sources at very low levels, let's say we aim to have peaks at 0dbs with an analog recorder, with a digital 24 bit recorder, you can set the record level to peak at -20 db , and still have a perfectly clean recording.
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More sample rate means more high frequency response, and here, I feel we face a situation similar to megapixels with cameras : you can have a crappy camera with a zillion megapixels, and compare the image with one from an Arri digital cinema camera, which has only 2 megapixels, and the image from the Arri is way superior .
Personally, I like the sound at 32khz, which is about the same frequncy response from a FM radio station , 15khz .
44.1khz and 48khz sound slightly brighter, and it is almost impossible to notice the difference beyond 48khz.
Unless you use cables made from unicorn blood and speakers blessed by the heirs of Merlin, of course
My impression is that the 24bit high resolution format from Tascam was more popular than the 96kHz high sample rate from Pioneer, and your reasoning probably explains that.
By the way , regarding your remarks at the end of the video, I am afraid there is not much we can do now , maybe trying to get some sort of remote job , but when things come back to normal, we definetely need to be more greedy or more ambitious or have more aggresive goals, because, as we all see now, swords and castles were invented for a reason.
Right now , I am working my ass off to get a remote job, selling on the phone , in the meanwhile, let's keep calm and carry on.
Warm regards from Spain !!
Thanks for another great repair and walking through every step so nicely. I love these machines I just have one (with just 81 head hours) but have some tascam da-40 (one of them still 0h!) da-30mkii, da-30 etc. DAT is a great format, and really love those tiny tapes. Although I still don't have one of those pioneer 96kHz models (D-05, D-07, D-9601) I think I prefer the 24bit system since I can notice much more an increase on dynamics and S/N reduction then any increase on frequency response. These are difficult times for everyone, specially for self-employed people as you, but if we support one another we will get through this. Since I'm stuck at home I'll watch the rest of your channel and hoping for some more in the near future (specially DAT or DDS related). Good luck!
I think the problem is in the design, the way a large heavy transformer(a big lump of iron and copper) is mounted on a circuit board rather than been fixed to metalwork, like the chassis. And these brown SRBP {Synthetic Resin Bonded Paper) boards are not particularly strong. I suspect the DAT took a knock, and the transformer came loose taking half the board with it.
If the transformer had been securely screwed to the base chassis, it likely wouldn't have come loose and no damage done.
Impressive fix; I remember my brother finding a Finlandia (Granada rental) TV in an alleyway abandoned some years ago. Giant telly at the time, great build quality... but the board was snapped and totalled like this. 5 hours of soldering later and he fixed it. Worked for about 10 years after that. If it looks stupid but it works, it ain't stupid!
Finlandia I think were built by Finlux, who were I think it some way connected to Skantic. I remember fixing a couple of lovely old 26" Skantic Teletext TVs back in the day, and you might have seen my Frantic Skantic video repair a few months ago. Some people would say you can't repair a snapped board safely, but I think you can.
Your videos on Tascam machines are very enriching, bravo. There is another guy in the usa that does the same job, it's 12voltvids. I have two DA45, one DA30 mk2, three 122mk3 and one 112r mk2...All these decks have a good conception in my opinion, easy to repair, with a good mechanical. I have also a 7040 Sony, it's also very good deck. It's not a collection, i'm a professionnal for audio restauration, transfer, etc...
The pcb break, that was incredible ! (sorry for my bad english)
Yes I subscribe to 12voltvids, he's very good.
I like the Sony 7040 too (I bought it very cheap), though it's not one I use as much as the DA30MKII.
@@video99couk
And what do you thinkn about Sony machanic vs Tascam ?
@@aldomaccaroni6518 Apart from the limit switches and the silly tiny drive belt, I prefer the Tascam mechanisms. But neither are as easy to work on as they should be.
First time I've seen that, a whole power supply snapped in two.
It was a bit of a surprise. If the PSU had been very complex, it might have totalled it.
Very interesting episode. I was surpassed that there were 24-bit DATs. I have previously heard only about this pioneer one that could double sampling rate to 96kHz. I hope that you get better and your business will restart after this difficult times. Good luck!
There is mention in the comments here about both (incompatible) DAT variants, the higher bit rate and higher bit depth. The consensus seems to be that the higher bit depth (Tascam) is the most useful enhancement.
We're coping, we won't go out of business. Should have another RUclips video out in a couple of days, just solved a very unusual fault.
video99.co.uk I have viewed on your chanell a couple of very interesting videos about some unusual formats. Previously I have been watching TechMoan chanell also from UK. Maybe you also find it interesting.
@@grzeshiek 0:10 Have a look on my videos where we get to see the TV in the background. There's a mug you should see.
Excellent in every way. Nice Job. How about a video on how to clean the head(s)? Much appreciated.
DAT heads are very delicate, so I would normally use a DAT head cleaner tape rather than manual cleaning with head cleaner sticks in this case.
Yes using a DDS drive is twice as fast as using a deck and the files are identical to what’s stored on tape, Though 24bit/48Khz and 16bit/96Khz will be transferred in real time.
Basically you need a desktop with at most windows 7, A SCSI PCIe card, a Sony SDT-9000 DDS-3 drive flashed with a special firmware using Sony tape tool program, The WaveDAT app, and you’re good to go.
I would have to build a desktop specially for the job, all mine are Windows 10. I wonder how much the required parts would cost.
video99.co.uk Any desktop from the 2000’s should work fine, There is a way to get a cheap DDS drive by getting the TSL-S9000L auto loader and remove the SDT-9000 from it, pretty easy, and flash the firmware. The WavDAT is $30. Other parts like cables adapters and SCSI card should be cheap.
@@video99couk The most expensive part will be the tape drive; a PC capable of running it would be peanuts (hell, I have a server you could have, but it would be the cost of shipping that would kill it!). I even have the PCIe SCSI card for it somewhere.
@@cromulence Yes, getting the right kind of drive which will take the required firmware patch, and then hooking it all up with SCSI, is the hard part. I may try one day, but I'm getting the impression that audio DAT decks may produce better results with fewer errors.
@@video99couk I did see that message below; I wonder if running the software slower would result in less read errors as that discusses 4x extraction speed. There are also other drive models too which may fare better.
I still have a DA30 DAT, I had to recently replace the perished loading tray belt as is usual...
Yes, we are in bad times indeed.
No wonder whyI couldn’t find one to buy!!!
Maybe he can sell you one of the two
Rodrigo Belinchon It would cost a fortune to ship to the US.
I want to thank you for making such awesome video. I also would like to know the link to the merchant who sells these drive belts. I have the same exact problem with my DA-45HR as you described it in your video at 19:54 . Please let me know, I really like these units even though they are for all practical purposes almost obsolete, but mine is in almost mint condition and definitely worth saving so it can be displayed in my studio. Thanks again!
I think I bought them from seller revox_de on eBay.
@@video99couk will the drive belt (or any belt in the loading mechanism for that matter) be the only cause of the "Mech.a.Com.Err" error? Thanks again!
@@audiomastering There are bound to be other possible causes, but it's certainly the place to start. There is another belt at the back of the deck which is easy to replace at the same time, so you should.
@@video99couk Sorry, I guess I didn't phrase the question correctly; is this error only caused by belt issues?
@@audiomastering Probably not. It's relatively unlikely that there is another cause for this error, but of course a mechanical jam up in the deck would give the same error message.
Where did you buy the belts? Direct from TASCAM? Can you provide the part numbers for the 3 belts? Have you considered setting up a Patreon or a Paypal donate link? 12voltvids has one.
There's an eBay seller in Germany who stocks them. I don't have part numbers because I don't have the correct service manual yet. I have set up Patreon but it's not been used by anyone yet! But I'm still a small channel, it's no surprise. Looking forward to reaching 1k subs hopefully soon.
video99.co.uk your already have your first patron :) Unfortunately the amount I can spend on it won’t save you and your family, but it’s better then nothing :)
hi i am working on a tascam 238 they have bad servo motors i pull out all the servo pcb's coils and put back to the tascam 234 with motors works very well now
the servo pcb would cost £90 and would play up again there's a IC that is hell that's why there's alot of tascam 238 on ebay i have 1 7/8 3 3/4 on this make now
2000-4000 rpm servo motors in the 2 i have i got a akai 77 that's not right belt not griping fry wheel one one of them bob
you know i emailed you about a 4 track cassette i got of ebay that had been banged in the same way all the pot log meters were dead all 12 and speed was out i fixed it
i have seen unit's like this they go around with bands with out the right case for them some times they get dropped
What gauge wire did you use? Is it stranded or solid wire?
Full specification is: Alpha Wire 7130, 24 AWG (7/32) TC 0.016" 0.41mm XLPVC Insulation, mil spec, rated to 600V peak. Decent stuff, I got some of this from the same company as I bought my Tektronix TDS3012 and illuminated mangifier, when they closed down.
That square hole on the power pcb is asking for troubles, bad engineering actually...
The top deck with a dimmer display can be a leaky capacitor on the power supply, on the 60 volts rail...
Yes the PCB design was partly to blame for this. I hadn't considered the top deck to have a dim display, until I saw how much brighter the other one is. I could investigate that further, but a schematic would help. I only have schematics for the DA-40 which isn't identical.
I would have copied the PCB design, get it remade and move all components from the old to the new one.
That would have been a lot of work! But yes, a nice solution if you have the time.
24-bit is more important than 96kHz.
Another hinter, maybe?
could you place te Number of the belt or de diameters of that small belt it would help alot of repair yourself.
I think I purchased the small belts from this eBay seller: phonohifishop
The belt is available on reverb, it is Tascam part #V00013500A/B and works with Tascam DA-25, DA-30MKII, DA-40, DA-45HR, DA-302 & DA-P1 digital recorders.
Hi, very nice video, that is a score I should say. I have a Sony DTC-690 which the head drum is shot. Is there any chance you could source out a head drum and ship it for me? In my country, you cannot find any trace of DAT machines or any parts. I am willing to pay for all your troubles including shipping. I don't even mind if you buy a broken machine and just send me the head drum and you keep the rest. The model number of the head drum is DOU-03A. Thank you
I have a DCT-690 myself, in working order. Alas I can't help much with sending a deck, I have a backlog of work to do and machines to work on here. Sorry but I'm just too overworked. Perhaps look for one on eBay who will ship overseas.
Very good video. Suggest you to start online basic electronics Repair training for those interested like me. Start earning as well online. Experts like you are Very much needed in this 🌎. Thanks 🙏🏼😀
hi am in the same boat as you i will say the job market is very very bad there are part time job's just to get money in i used to work 40 hr for 23 years
and i use to do fixing jobs as a 2nd job beware my old boss did not like it at all i can tell you someone like yourself can come a big name on youtube
like dr jake making silly video i know there are units formats you and techmoen not done yet i by first get all the gear first make video later
some there's not to many on there at once bob
tascam pcb's are awful the transport on 2488 all series of multitracks especially the mk2 are bendy and traces lift they are transport supposed to be pressed down on when tactile switches fail people press down even harder. if only they would copy the schematics and send them to pcb way so we could order a blank and repopulate them. Right to repair yeah right Tascam