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Chat Page News
Sunday 26th March 2017

Please bookmark http://chat.palsite.com/chat_page.py as the new URL.

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Noel Higgins
Friday 11th December 2015
10:33 pm U.K.

noelmh@nospam.tpg.au

Matt,

Yes, the principle is really like a reverse lathe where the bearings let the roller be brought up to a high speed by the diagonal contact of the grinding wheel. The difference is the work tool of the lathe is also providing the driving force. Not much pressure applied of course to give low surface abrasion whilst maximizing speed and hence the amount of surface area of the roller contacted during the process. Even while it is spinning you can judge the effectiveness of the process. I reject rollers that show any signs of cracking on the surface or edges though because they are too far gone to be recovered.

regards Noel

Roderick
Friday 11th December 2015
9:23 pm U.K.

nospam@chatpage.co.uk

Noel, they used to sell it on Ebay but I can't find it there anymore.

This is the same product on Amazon:

http://www.amazon.com/SR-Audio-PRC-2-Audio-Conditioner-Rejuvenator/dp/B00JCOW8DC

Matt Quinn
Friday 11th December 2015
5:21 pm U.K.

matt@matt-quinn.com

Ah! - This is done with the roller 'in situ'?

Noel Higgins
Friday 11th December 2015
2:18 am U.K.

noelmh@nospam.tpg.au

Roderick,

I am willing to try some of that fluid, especially since the "new" but old stock tyres that I am getting supplied by Wagner for the toshiba V31 machines do not grip as they have hardened in storage. Where do you get it?

regards Noel

Noel Higgins
Friday 11th December 2015
2:14 am U.K.

noelmh@nospam.tpg.au

Matt,

I use the heavy handed technique all the time now. Takes less than a minute.

I have not tried to bend the carrier to take the roller out because the grinding action of the process I describe is simpler and more effective.

It is quite easy to control with an even sweep of the hand - much like spray painting.

If anything more material is taken off the centre of the roller where the capstan wear on the roller is least and the tape deposit exists most.

cheers Noel

K lambert
Thursday 10th December 2015
11:21 pm U.K.

kn2000@talktalk.net

Cooper:

Sorry about that, I knew it had an eight in the figure but damn that is pricey for a pinch roller.

A good job the Sanyo ones last particularly well.

..Kev

Cooper
Thursday 10th December 2015
8:31 pm U.K.

derekcooper@hotmail.com

Thank you all for your suggestions. It does seem that the rollers are available - but very expensive (about 28 + shipping). May try to rejunivate the one I have and as a last resort - buy a new one! Just hope this resolves the tape creasing. I'll let you know how I get on.

Roderick
Wednesday 9th December 2015
9:55 pm U.K.

nospam@chatpage.co.uk

I have been using SR-Audio PRC-2 "Studio Grade Audio/Video Tape Deck Pinch Roller Cleaner Conditioner Rejuvenator Fluid" for many years with great results.

Very useful for belts too.

Matt Quinn
Wednesday 9th December 2015
7:32 pm U.K.

matt@matt-quinn.com

Have you tried clamping the roller in the Dremmel? (or even a battery-drill) - A screw, some washers to clamp it still so it's fitted like a 'bit' and driven by the machine... Some 1200 grade wet and dry used wet with detergent...

Bearings can be re-lubed with watch oil... Once the unit is dried out of course.

It's kind of a 'last resort' technique for sure; but any port and all that. As you suggest, the 'danger' is losing too much off the diameter.

Noel Higgins
Wednesday 9th December 2015
6:47 am U.K.

noelmh@nospam.tpg.au

Hi guys,

Some information I supplied in the past. But updated from the suggestion to use detergent replaced by pure alcohol.

General Information on something that has worked for me. Capstan rollers are becoming hard to get for most beta machines and are very expensive. A tip for those wanting to try and restore a capstan roller in a VCR. The rubber rollers become hard on the surface and can even get a build up of tape or other deposits on them. Assuming the top and bottom bearings of the holder have not collapsed or worn too much and that the rubber is not stone hard or has large cracks or holes in it, the surface may be able to be restored. Remove the roller assembly from the machine.

THE SOFT TOUCH METHOD 1/ Rub pure alcohol onto the surface of the roller but try to avoid the sides (ends) of the roller to keep it out of the bearings. 2/ Use a cloth or rag to remove as much rubbish from the rollers surface as you can. The use a dry rag to rub the surface up to a dull finish. refit the assembly to the machine.

THE HEAVY HANDED METHOD (Wear suitable clothing and glasses this could get messy) Get a Dremel super tool or similar with a fine grade stone grinding wheel of approx 8mm to 10mm diameter. Run the tool at half to two thirds speed and while holding the capstan rollers metal mount between your thumb and index finger with the side of the rubber roller (capstan pin side when fitted) most exposed facing up. (I have assumed it is a roller from a late model SONY. Other model holders may have to be held differently) TAKING GREAT CARE NOT TO TOUCH YOUR FINGERS apply the tool gently to the edge of the capstan roller at a 45 degree angle to the surface so that tool imparts spins to the roller up to a very fast speed and move the grinding stone across the surface slowly and evenly to the other edge keeping the pressure and motion constant until you get right to the other edge and then lift. Check that the resulting "wear" to the surface is even and has the right effect of roughening up and cleaning the capstan rollers rubber surface. Repeat the procedure until you are satisfied that the roller surface is even, clean and grips reasonably like fresh rubber. Do not take so much rubber off the roller that it significantly loses its diameter and cannot press onto the capstan when refitted. I HAVE DEVELOPED THESE METHODS OVER TIME AND THEY ARE GIVEN TO YOU WITH ALL CARE AND NO RESPONSIBILITY.

Cheers Noel

K Lambert
Tuesday 8th December 2015
3:47 pm U.K.

kn2000@talktalk.net

Cooper:

I believe Donberg electronics still have them ,but they are around 8.00 I think.

Worth a try.

Let us know how it goes.....................Kev

Mike Baldwin
Tuesday 8th December 2015
1:54 pm U.K.

mike@baldwinpcbdesign.co.uk

I have a Sony CL5 which, as far as I know, still works, apart from the usual rewind problem. Would anyone like it? If so, you would need to collect it from East Sussex.

Cooper
Tuesday 8th December 2015
1:26 pm U.K.

DerekCooper@hotmail.com

Again thanks for the response. Would seem I need to locate a new pinch roller for my SL-HF100. Would anyone on here know of suppliers in the UK who still have stocks of parts for these VCR's?

K Lambert
Tuesday 8th December 2015
11:00 am U.K.

kn2000@talktalk.net

Hi Ivan:

Unfortunately this site is mainly for PAL (PALSITE) Beta's as we've had to inform others in the past.

So the chance of anyone here with that manual is quite slim I'm afraid.

If you search on the net under 'vcr owners manuals to download' there are sites out there that cover all formats and countries variations for you to download for a small fee.I know because I've used it a few times.

Good luck in your venture.

..Kevin

Ivan
Tuesday 8th December 2015
2:20 am U.K.

ivanloeza@yahoo.com.mx

hi there want to know if anyone can send me a pdf or jpeg copies of the SL-8600 betamax ntsc VCR manual I puchased one on ebay without manual Thank you my email is ivanloeza@yahoo.com.mx

Matt Quinn
Monday 7th December 2015
10:06 pm U.K.

matt@matt-quinn.com

It's a Phillips VR2022 basically - Unfortunately the V2000, Betacam and Umatic pages are down at the moment.

K lambert
Monday 7th December 2015
12:16 pm U.K.

kn2000@talktalk.net

Ni Marc;

Is this a Beta machine as I'm not familiar with that make in the Beta format.

If not there are a few other sites for the relevant format that could possibly help you out.

..Kevin

marc mcburney
Monday 7th December 2015
8:31 am U.K.

marc.mcburney@sky.com

Hi to all

I'm new to this site and was wondering if anyone could shed some light on a fault with my B&o 8802 player, when switched on it go's into rewind for a few seconds and knocks off, i heard that the old lithium battery can cause a lot of problems with these machines and would need to be replaced, if so what the correct battery and where would i get one from.

Regards

marc

K lambert
Sunday 6th December 2015
9:48 pm U.K.

kn2000@talktalk.net

Hi Cooper:

Glad all the advice given has pointed you in the right direction.

It sounds to me like the pinch roller either needs a good clean with some cloth and isopropyl alcohol or it needs replacing. One way to test is if you can press a finger nail in the rubber and it still has flex then it's OK.If it feels pretty hard especially at the upper and lower limit's it's had it's day.Usually if they go bad you notice tape creasing in reverse search first.

Also the forward tension rating should be around 70gm the back tension around 32gm.You will need a torque tape to gauge both sadly.

......Kev

Cooper
Sunday 6th December 2015
8:28 pm U.K.

derekcooper@hotmail.com

Firstly, thank you all for the help you gave regarding reel motor issue on my SL-HF100 - I located some hall sensors and replaced them - now the vcr is working - well nearly!

On playing a tape, it plays but is creasing just before and after the capstan and pinch roller. The capstan is spinning fine. Initially I had to adjust the spool torque as the there wasn't enough to pull the tape back into the cassette case (the pot is near max now) which seemed to improve things. I also tried to clean the pinch roller - but this seems to have a glaze on it. The tapes are still creasing. So could anyone suggest as to what I need to do to fix this? Thanks!

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