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I have a Sony SL-T30ME.
The transport works fine but the video is very bad.
I guess the rotary drum heads need to be replaced.
Any one knows where to buy the upper part that has the heads or the whole drum?
Has anyone got a working power supply unit for a Sanyo VTCM40 for sale please?
Seems like you have no forward reel pickup tension there at all. You can make the mechanism load without a tape to see if the pendulum drive is engaging properly as well.
It will still cut out after a short time but you can see if the pendulum arm moves freely to engage. The drive action for forward pickup is different than for fast forward. Don't rule out the pendulum arm as a possible issue. Some of them have the end bend up and snag a spring.
HF950 on eject it leaves a loop of tape out of the cassette I have raised the motor rotor to stop it rubbing on the coils which look ok. The tape rewind seems lively enough but it stops too soon leaving the loop of tape.
I have a Sony SL-HF150 and the drum motor would bind when 'play' was activated, indicating a bad Hall Sensor. I replaced the complete coil board containing the sensor and now the drum motor spins, but after 3 -4 secs the machine stops. This is in all modes. Sounds to me like a reel sensor this time. Are the reel sensors the same type Hall sensors used as in the drum motor? Does anyone know where to access these hall sensors at a reasonable price? Thanks.
Thanks for getting back to me with a reply. I think I will park one C20 for now.
The one with the slack tape during playback I have had a look and located the variable resistor pot as shown below:-
I have tried this all the way to both full CW and ACW, but it has made little / no difference to the tape take up?
(I have returned it back to its original position)
Just to confirm here is a video of the issue:-
I repair the drum motors by replacing the hall effect sensors. Rarely have I ever had one work again by just removing the glue.
If you have other beta machines for parts the same hall effect sensors are used in the Sanyo capstan drive motors and head motors.
They are also used in the SLC9 capstan motor which has three of them. You will have to extend the leads if you are using scavenged units.
It is quite a big job to fix the drum motor and you can easily damage the heads when you pull the head assembly out if your not careful.
For the lack of tape forward spool pickup problem you have to increase the tape tension by adjusting the pot marked torque (torq) toward the rear on the SS board which is
the second board down from the board with the AV connector on it when you turn the machine upside down and take the base cover off it.
Forward torque should be 70 gm but you can usually judge when you have enough torque by swapping between FFWD preview and play and seeing that the tape does not bundle
too much while going between those modes.
I only have three new sets of Sanyo heads and they will probably be the last I can even get so it really depends on how much you want them and will pay.
Please contact me to discuss. The same heads seem to be used in all mono machines from the VTC5000 to the VTC M10 and M20 models. The M30 used a three video head disk and the M40 and M50 used HiFi heads (4 chips) and these have not been available since the mid 1990s.
I still get plenty of machines to repair, but the Sanyos don't wear out as quickly as the Sonys.
I'm looking for a working power supply for a Sanyo VTC-M40.
If anyone has one for sale in the UK please let me know.
I have two C20 's One has several issues, no head rotation (I have removed glue off HE sensor) and no FF REW PLAY operation. The other one appears to function regarding FF REW, but when in PLAY the tape starts producing slack on the right hand side of the head. If I FF while in play the slack is taken up, and the same in REW with PLAY, but as soon as normal play resumes slack starts building up in the area by the pinch wheel. The pinch wheel looks ok, although I am far from a VCR expert.
Any ideas regarding this, I assume the pendulum is functioning for the FF and REW to work.
Re Sanyo heads, are you willing to part with one? What model .
Hello Kevin, if you could get back to me when you see this i would appreciate it. thank you
I still get parts from Wes components but mainly belt kits now. I have used heads from them for a number of machines in the past and still have some Sanyo heads left.
Regarding capstan rollers, most times I manage to refurbish them by buffing up the rubber surface.
I have recently been donated a Sony C5 after years of sitting in storage.
Visually it all looks OK other than some dust.
The unit powers on, and the head drum spins, initially the eject function was stiff but this has corrected itself. When a tape is put in the machine and the carriage pressed down the head drum stops moving. Nothing else happens, the loading belt is intact but there is no motor noise. I am able to lace the tape by manually rotating the loading ring. After rotation, this clicks into place and it looks like a microswitch is activated. At this point nothing further happens.. None of the play, forward, rewind buttons facilitate anything.. The machine is silent.
If I press eject a motor (loading) sounds and the loading ring returns to the start position although a little sluggish, I guess the belt does need replacing..
Could anyone advise why the tape doesn't lace when inserted and why the machine is effectively dead at this point? I am thinking switches, power, sensors etc.. but don't really know where to start without a Service Manual.
I have looked at the tech pages on here to no avail.. Would this be similar to the C7 and the issues with that machine shared with this??
Morning Fellow Betamax Gurus
little question here
Sony C6 heads from WES Australia for UK machines
Sanyo VTC 5000 Heads From WES Australia for UK machines
has anyone used the WES heads as they are very competitive and readily available
(have purchased 2 of each)
Are they any good ??
can someone clarify this for me at all
have purchased other hard to find parts from them (SONY Idler Arms, Sanyo Idlers - Both types , Pinch rollers, Sony loading belts ETC)
customer service is excellent
This is a test message. I used the normal link I previously used so if it works then it seems normal.
Are people still having difficulty trying to post? I have not been able to recreate any problems so if you are having problems, please could you submit details of what is going wrong using this link:
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I have a Sony SL-HF500 NTSC machine. I need to digitize approx . 200 PAL tapes (I have the Elgado hardware/software for digitizing). The SL-500 is switchable between 50Hz and 60hz; I do have a 60 to 50Hz converter. Is there a jumper on the SL-HF500 that will allow me play the PAL tapes.
Greetings from the Czech Republic, excuse my bad English. SONY SL-T6ME. VCR playback is not a picture, just stripes; these stripes change.The picture is visible when fast forwarding or rewind.
Where can I look for a bug?
im looking for the Sony SL-5400 NTSC Betamax owners manual .Can anybody can send me and PDFor JPEG copy of the manual to my email [email protected]
im looking for the Sony SL-5400 NTSC Betamax owners manual .Can anybody can send me and PDFor JPEG copy of the manual to my email
Can anybody advise on the best bearing to fit for a SL-HF950 reel motor?
Tried shimming but no success, then over shimmed and had a slight drilling accident trying to remove it...
Anyway, I now need a bearing, any suggestions on sizes?
Hello NOEL I was just asking in case you had a scrapper the remote has been in a cardboard box batteries removed in a dry place a normal remote would do I Have got a 950 Which has been rebuilt every single adjustment pot had been twiddled and it was for a while only working in black an white well thats now fixed faulty caps and a open circuit delay line ,the request for a power supply panel was from what I recall you used to fit a laptop supply in place of a failed power supply, it was so I could rebuild one in the event of failure ,the front panel can be glued and repaired if you do have one I do not mind postage costs there is a 950 on ebay its not yet ended but the seller has got no tapes and no remote but if the price is good and I win the auction i will send a detailed note about how to attach the skate securing screws,regards the C9 it seems to just need a replacement of the caps that power the reel motors oh and the 950 rebuild has received the brand new head disc as when I sent the disc to you I had one more sealed head disc which when I purchased one of my 950s the seller offered me the option to purchase the other head disc was found on ebay new in a sealed box as was 2 new pinch rollers . I Hope you are keeping well regards David .
Sorry to hear about the remote now being dead. Strange because they are usually reliable except when contaminated by drink spill especially the later model units.
Most likely a battery connection problem. By the way VHS remotes with jog shuttle from the SLV777 and SLV815 work with the HF950 as long as you select VCR1 and not VCR2 or VCR3 on the internal setup.
Your list of issues is way too confusing plus given the cost of postage getting parts from me is not really a cost effective option nor do I have all the bits you need as I don't scrap potential fixer machines.
Re the HF950 power supplies there is probably and email note regarding repairs that I could dig up if that's all your after.
Sorry to get out of subject talking about NTSC machines
Got the EDV-9000 Japanese today.
No guarantee I took my chances.
It took the tape in and started to play it very slowly, I took the cover off and moved some of the tape reel parts, got some movement going.
After tbat no response.
hello to Noel and Kevin,I have not posted for a while and have just purchased 2 hall ,I C units I have not fitted them yet and I require some bits for one of my 950s Noel do you recall the jog shuttle remote I got from you well a lot of my stuff has not been used for a long while 2 of my 3 950S were working very well but 2 of them the hall units have failed ,I have another 950 which has had brand new heads fitted but I replace the complete front outer cover and get a 950 remote control ,I would like to repair or replace the jog shuttle remote which was working but now shows no sign of life i removed the old batteries and the place everything was dry and warm ,one of my previous post was ,as I use sky HD I was not able to connect up using RF but I have now got 2 more sky HD boxes that have got this type of output so I have been able to tune in using the traditional ariel cables hopefully Noel you are able to supply these bits and if you have a complete dead 950 power supply panel that would be great.I have rebuilt one but since moving to my current location can not find my notes of what i replaced and would like to have a spare power panel to rebuild in case one fails ,I got a C9 which is in fairly good condition and have strip the DC-DC unit which was working but flickering so I have replaced all the caps with 105 types,the machine worked for about 2 months but has now failed but I think the problems are the caps in the reel motor circuits need replacing as its not rew/ ff modes regards David Grant.
Hi, I haven’t been active online with Betas for about 20 years, but been collecting them all the time.
Thinking abput makng a new website for selling some of my Beta gear, or maybe just offering it on Ebay.
Lots of 90’s and 00^s brand new tapes including Sony PRO-X, PRO-DX, Master HG etc.
Let me know if interested, located in Helsinki Finland (EU).
tel and whatsapp +358400843600
Really glad to see you are back here.
Thanks for your suggestions and advice. I will put them into practice once I can get access to those machines again.
Take lots of care,
Sorry i've been absent from here for a while.Seem to be having huge issues getting access to this chatpage for some reason.
Anyways,i've seen you latest post Noel and the reason those tapes are not seating correctly is the insertion mechanism belt is worn/Stretched.
I've seen that fault on a M40.
Gabriel: those issues with your M20 is most likely the servo pot's for the head drum are going out a tiny bit.this does occur rarely but if they are set up perfectly you should get a instant picture stability from all modes.Like forward search to play.
Hope this helps and most are staying sane in this mad world we seem to be living in!
Sony SL-HF100 Repaired, thanks guys both faults were on the Palsite fault page.
No head drum rotation - replaced Hall effect sensor.
No Colout (Chroma) on playback, only on Pal tube tv and converter but worked on flatscreen colour was fine - Replaced CV001 in Video Board.
It really did bring back memories of repairs to Betamax VCR's from 1987 onwards. my first was an SL-C6.
Just to say cheers all.
That is a very strange picture issue. It is obviously relating to short term variations or lock issues relating to the horizontal sync pulse. I suggest you get a service manual and use an oscilloscope to see if you can track down were the fault is.
One thing I would check is the setting of the drop out compensator which is set incorrectly can produce a similar effect.
That circuit switches in a delay line to repeat the previous sweep lines information when a drop out occurs.
hello, i have a problem with my SONY Betamax SL-C40ES PAL. When playing some tapes the recorder produces a distorted picture. This is although not on all tapes like that.
Here's a link to a capture I made. https://www.youtube.com/watch?v=PZdl-G_ZTiU
Kevin is the expert on the Sanyo machines so I would recommend you ask him what the trick of the trade are there.
I have just been playing and with trying to get a couple of NEC machines going. Never again - no manuals - no parts.
Thanks a lot Noel,
Touching and varying by hand the back tension lever is usually within my check routine for VCRs. However, these two Sanyos don't seem to improve even a bit with this procedure so that was the reason for suspecting a servo issue.
I am also thinking on measuring capstan and head motors stability via speed/phase signals, just to see any possible jittering causing this issue. But honestly this will require me some time.
All the best,
I have had quite a few where the back tension lever builds up an oscillation. I think its due to contamination on the supply reel or the belt that grabs it varying the amount of friction. See if just touching and applying pressure to that lever changes the picture shaking.
When this happens I pull the parts out and clean them., I scrape along the friction felt with a knife to rough the surface up and disturb any dirt particles lodged in it.
So far the power supply capacitors have been changed and the tracking potentiometer has been checked to be OK.
Do you know any typical fault related to this symptom? I shouldn't blame a tape path misalignment because, to my experience, this is seldom found on Sanyos unless someone has fiddled the machine before (doesn't seem to be this case). Pinch roller is also in good shape and I have also swapped it with identical results, though.
Are these machines prone to servo capacitors failure?
Thanks in advance,
OK there is information on Palsite to address that issue. Send me an email if you want photos of circuit information/board layout or Capstan and video head electronic alignment procedures.
My contact details are on Betaheaven.com
and Hi to Kevin. I sorted out the alignment issue with the Sanyo M10s thanks. I still have an issue with the cassette mechanism not full lowering different tapes correctly into place for some reason.
Hi Noel thanks for the reply. Picture sync is terrible so I'm led to belive that it the notorious electrolytics on the servo board.
I can take photos of some pages if you send me your email address and tell me what you are specifically interested in. What faults are you trying to fix?
regards Noel (betaheaven.com)
Hello to all, Ive been trying to locate a service manual for a SL-C5UB for some time now but no luck, anybody on here have a spare or copy to help me on my quest to repair my machine.
With the HF950 fast capstan issue - I have the exact same issue with a HF100. Started off as an intermittent fault but has progressively become worse, so much so that's now constant. I'm working through the circuitry and have a donor machine so have swapped components and boards narrowing it down to the main servo circuitry (not capstan motor or drive PCB). I'll post the fix when I find it in the the hope it helps you...
I'm trying to get an AG-7 tape changer working with a C7. I have a later machine with the C7 logo on the front flap but I'm starting to suspect that the machine itself is of an earlier version which doesn't support the AG-7. I searched a while back and found info on the modification but for the life of me I can't find it now. Does anyone have the details for the modification at all? Would be so great to get this up and running finally...
As Noel suggested, the C80 was sold in Australia under the -AS suffix.
In Spain we had the C80E version, which was very common. Today, it is not difficult to spot one in an assorted degree of conditions. It wasn't sold in many different countries AFAIK.
It is an overall simple machine, despite its appearance. Its mechanism is mostly based on the C30 model with an improved three heads assembly for perfect pause and frame advance. Because of that, it makes use of a dedicated additional board.
From the ones I have serviced, I can say many of them suffer from common issues (black loading gear, 3H Hall sensor and its dreaded glue, planetary assembly and eject left gear among others). But they also develop poor loading and threading torque, muffled audio and display issues. The clock/counter one is usually quite faded. The secondary (timer) is usually bright but you can only enable it vía the original remote: the huge RMT-220.
Right now I own a very special specimen in grey color. And the remote is also grey!
I am in Australia Gabriel... Thanks for the info Noel.
The Sony SLC80AS was the model sold in Australia and there are a few around but they are not that common. They were marketed as "sports" model with two timers and the most strangely designed remote control of any Sony beta.
You get a real time tape readout and perfect stills. (care of SLC9 heads)
Most of the ones I have seen have issues with the timer displays failing. I have never spent much time trying to fix that.
Un which country are you based? Depending on that, the C80 can be relatively common.
Hi all, who here know of the Sony SL-C80 is this a rare machine?
Thank you Noel. I did not know of that site. I have a manual for my SL-C30 now, thanks. I have found the fault - one of the plastic gears in the cassette loading assembly has lost 2 teeth because an axle used in the loading sequence was too tight for the teeth. (It's hard getting a cassette out of the machine when it is already lowered.) I only have 16 tapes I have to convert to digital so if I can't find a gear I will have to load and unload each cassette by hand. I think it plays OK but I have not got that far yet. Thanks again.
Have you checked you have the 4'43MHz signal in the servo board and main servo IC? This is usually generated within the video board so you can track it back.
The SLC30 has two actions when its loading and unloading. Dropping the tape into place while flipping up the cover flap - then threading the tape around the video head drum assembly. The second action is controlled by a small black gear that can break which affects the driving of the load ring which wraps tape around the head.
Your problem however sound like a broken gear inside the large clear/white disk gear on top of the load motor. The gear driving the planetary gear set that mounts over the motor shaft (and has a D shaped hole in it) often cracks and jams. They are under a lot of strain so it is unlikely you can repair it, you just need to get a replacement if you can. Also make sure that the swiveling end underneath the lever that is driven by the capstan roller solenoid has not accidently been placed the wrong side of the metal pin that sticks up. This lever controls the change between loading and unloading action from cassette in and down to the tape being spooled out of the cassette and visa versa when unloading.
I am wondering if anyone knows the cause of a fault I have on two SLHF950 machines.
I repaired the faulty slides on both of them. Now I try a tape in play mode and the capstan runs full speed tangling and damaging the tape. I can get the machine to pick up most of the slack if a hit rewind but that only work momentarily before it stops. The drum motor hardly spins at all. The three electronic fuses are OK - not blown.
I suspect there is a fault on the SS50 board. Voltages in measure correct. Any ideas?
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