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Chat Page News
Friday 24th March 2017

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

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Roderick
Tuesday 8th May 2012
10:58 pm U.K.

nospam@palsite.com

Gabriel, sorry you are right.

Had a look at the HF100 powerblock, very similar to the HF150. For the display, probably check the 'D' board which provides much of the unswitched power.There should be 3 rails: 3.2V AC, 42V DC and -30V DC.An the 'M' board there is unswitched: 12V DC and 6.2V DC from Q625Switched power: 12V from RY621, 9V from Q627/628 and 5.2V from Q626.

Hope this helps.

Gabriel
Tuesday 8th May 2012
10:00 pm U.K.

gabrigpb@hotmail.com

Anyone has a clue about a Sony SL-HF150 with a very dark display? I mean, you plug the vcr and itīs quite difficult to see the clock. It turns on (it shows "AV"), but doesnīt lit the green Led inside the Power button. Also, it doesnīt accept any tape. The machine appears to be "tired" or "almost dead".I would blame the PSU, but donīt have the schematics for this model to measure voltages, etc. It uses the regulator STK5443.

As always, thanks a lot in advance.

Pd: donīt feed the troll.

Roderick
Tuesday 8th May 2012
9:50 pm U.K.

nospam@palsite.com

Nurse! Nurse! Bob is out of his bed again!

I mean really, what is all this 'we' stuff about bob? What have you actually contributed to this site other than slander and accusations?You made up some sob story how poor little bob got done by mr. evil who took his priceless toy. Grow up!

And just in case you didn't quite understand, PAL stands for Phase Alternating Line which is a video encoding system, nothing to do with your local 'pals'.

So unless you have something constructive to add, take your medication and shut up!

K Lambert
Tuesday 8th May 2012
11:38 am U.K.

kn2000@talktalk.net

Hi ultravixen:

No, i'm saying it could well be the one you're viewing it on may have the preset for the forward capstan speed slightly off enough to make this other recording do what it's doing.Normally when they are set up perfectly it should play all other recordings well, with sometimes only the tracking needing a slight adjustment.Let me know the model no.Are you US based?

........Kevin

Noel Higgins
Tuesday 8th May 2012
3:21 am U.K.

noelmh@nospam.tpg.com.au

Bob,

Refresh your short term memory with a look at posts on 26 and 27 April.

just saying.....

ultravixen
Tuesday 8th May 2012
12:48 am U.K.

a@hotmail.com

Thanks Kevin - I don't have the machine it was recorded on, but are you confirming that there's no way of getting the recording on that tape to play back normally on another machine?

K Lambert
Monday 7th May 2012
9:01 pm U.K.

kn2000@talktalk.net

Hi again.

Make that a forward capstan speed servo out of adjustemnt/alignment.

......Kevin

K Lambert
Monday 7th May 2012
8:10 pm U.K.

kn2000@talktalk.net

Hi Ultravixen

I've seen this a few times.It looks like the tracking internal adjustment is out of alignment.It's probably down to age or a poor quality capacitor.If i knew what model this is i can advise you where to look.

Thanks...................Kevin

ultravixen
Monday 7th May 2012
5:40 pm U.K.

a@hotmail.com

I've got a tape that is playing back with a regular varying speed (not on the machine that recorded it).

Example clip here: http://www.youtube.com/watch?v=inr3uYq9IV0

What might have caused this? Is it salvageable? (maybe digitally?)

K Lambert
Monday 7th May 2012
10:50 am U.K.

kn2000@talktalk.net

Hi Isabella:

I'm sorry you had to find out this way.Noel and myself do offer completely refurbished machines,done to a high standard (as well as repairs/advice),that,in this day and age Do deserve a good price ,as like most say, they are getting old now, but will last a long time if refurbished and all the common items checked and changed after 29 plus years.When you've seen plenty you get to see the same thing occuring over and over and maybe the odd unexpected thing that has gone wrong.Parts are getting harder to get but i can still get the right size belts and idler tyres for the Sanyo's.The later Sony's don't rely on rubber belt's so much and usually have failed 'hall effect sensors' , worn bushings ,broken plastic gears or shiny pinch rollers plus lot's of dirt and debris (as with most heavily use vcr's).There is one or two places in the US you could try for belt's idlers.These are "MCMelectronics.com","SMC electronics" both are in the US and should be able to provide the belts and idlers you need.usually the pinch roller is OK and usually needs a clean with isopropyl alcohol.If you search for vcr belts on the net you should come across these sites and a few others.

The model no of your Sanyo.I do remember one of the US models being wood grained.Is this the equivalent to Sanyo UK VTC 6500? .Or is your model a top loader?If you can give this info it would help me to guide you on the common issues after time.

Good luck ......................Kevin

Isabella
Monday 7th May 2012
1:12 am U.K.

isabellacatgirl@yahoo.com

Hi Kevin,

Firstly thank you for the reply. Gee this sounds way more complicated than I thought. I had a feeling prying it open with a screwdriver is not good, but that was the only way I can get the tape out.

Telling from your post,this does not sound like an easy fix. I'm actually upset for spending a $100 on something that doesn't work. It's been really difficult for me finding a Betamax player on eBay and they all seem to go up in price and it's ridiculous for something so old. What I bought feels more like I should have paid like 50 cents for it,especially since it doesn't work. I'm going to try to contact the seller tonight and see if I can get a refund, and if I can't I think I will have to look for someone close by that can repair.

Although I would like to try and fix this myself. I never fixed a VCR before and this sounds like a good challenge. If anyone can offer a easy step by step on how to get this to work soon I will gladly appreciate it. -Isabella

PS- Are these belts and parts available at Radio Shack? Anyways further advice and reply will be much appreciated,thanks.

K Lambert
Sunday 6th May 2012
4:18 pm U.K.

kn2000@talktalk.net

Hi Isabella.

OUCH.How common is that occurance,buying on E-Bay and finding out you overpayed or were mislead about the items condition.Seeing as the model is a sears (made by Sanyo) it will most definetley need new belts,rubber idler tyres and a good clean/lube and service/alignment check as well as capacitors checked and changed in the PSU.The fact you opened it with a screwdriver to gain said jammed tape is NOT GOOD.The loading ring would still be out if this was so and no doubt damage to the locking mechanism.The failure of the bottom idler tyre will give you NO tape take up on pressing stop and also no FF or REW.There is also an upgrade Sanyo gave to improve reel torque(by a resistor and diode ) for those two modes to overcome a tired motor giving the same issues.Anyhting i have ever offered is given a service probably like no other.I've seen the efforts from some and sometimes they've made a simple issue even worse through twiddling and moving things you should not touch, such as tape guides.This put's everything out.I would try to get hold of a reputable beta vcr repair service agent in the US.There must be some still doing this,over there.Mr Betamax is one i believe.He has a website.If you were in the UK i could've obliged with this.

Good luck....................Kevin

Isabella
Sunday 6th May 2012
1:35 pm U.K.

isabellacatgirl@yahoo.com

Hi,

I'm kinda new to the Betamax and I just got a top loader Sears Betavision through the mail from Ebay yesterday(not sure what year it is but is a woodgrain model). I hooked it up to my Sanyo tv and at first I put a tape in, but it wouldn't play and then it got stuck and wouldn't eject. So I had to pry it open with a screwdriver. After a few tries I was able to get a picture but the quality was very bad even after I tried to adjust the tracking. I was able to figure out how to fix the eject but then when I took the tape out I noticed the machine ate the tape and it broke. I tried another tape and the same thing happened. Two of my good tapes got eaten up. When I tried playing the second tape I noticed the picture quality was much worse and the tape was turning slow motion.

I have no idea what to do. I'm kinda frustrated because I spent like 100 dollars on this just to play some old tapes I found. How can I fix this???

Noel Higgins
Sunday 6th May 2012
1:22 am U.K.

noelmh@nospam.tpg.com.au

Kevin,

Good point about a capstan stuck on full speed, you are quite right and I have also seen that happen now that you have reminded me. I was thinking you meant just capstan stopped or out of servo lock.

I also join with you in thanking the administrators of the site for their efforts.

A point on direct emails. It is up to the individual. A picture or video of a fault "equals a thousand words" and you cant post that on chat page although I have seen someone do a link to utube. If someone wants to email anyone direct that is their business. I don't support con-artists using this site either.

I share my knowledge of how to repair betas because I can. That is the beauty of the chatpage in that people from all over the world can pool their knowledge on a "hobby".

I mostly sell machines, which I guarantee, through eBay. My eBay rating is 100% so I guess that tells a story.

It is also easier to find machines through eBay as well, because commercial repair businesses that might have had old machines and parts are all disappearing due to the throw away technology used today.

As the common parts that break are generally no longer available, there is a challenge to redesign around the issues and find fixes such as the capstan roller "resurfacing" technique I outlined recently.

However some Beta machines get beyond repair because of corrosion, wear, plastic breakages, being dropped or damaged in the post or just through poor attempts at fixing. They are still useful as parts machines and I have lots of them.

That said, a properly repaired beta machine will generally outlast a modern (usually very cheap) DVD player.

In the end, it is not about the beta machine itself, it is about the memories "trapped" on tape if you don't have access to a working machine. They are antiques.

cheers Noel (betaheaven.com)

K Lambert
Saturday 5th May 2012
9:56 am U.K.

kn2000@talktalk.net

Martin and Alan thanks for doing a superb job with YOUR site.Very much appreciated.

There are ways and means for obtaining free help with your cherished Betamax.Good to see 99% on here going about the right way to obtain it.

....................Kevin

K Lambert
Friday 4th May 2012
9:50 am U.K.

kn2000@talktalk.net

Hi Noel and Ben:

I have seen an issue on a Sony F30 whereby the upon pressing play the capstan speed was so quick it just piled up tape as it went through,even though the reel take up was working OK.It was a faulty capstan drive IC.Also on the C30 some(if not all) of their drive pendulums had an extra plastic bit on the end (under a spring) which would foul this spring when pressing eject and cause tape spilling.The only cure was to cut off half a centimeter at the end.On some of the vcr's i see, people have had a good fiddle and sometimes (without realising) put other settings way out to try to cure other issues.If you are in the UK drop me an e-mail.I have the necessary torque tape and advice to assist you.If not and in Australia then Noel can most definetely help you out.

....................Kevin

Noel Higgins
Friday 4th May 2012
1:06 am U.K.

noelmh@nospam.tpg.com.au

Ben,

The capstan motor is working otherwise the tape would not bunch up. It's a forward tension issue probably caused by a sticking pendulum arm. The arms are plastic and bend with age. later versions had a plastic brace in the design. Otherwise it can be drift with age and corrosion in the forward tension torque setting.

Take off the top of the machine but don't touch the rear of the machine where the 240V power supply is. You can trick the machine into thinking a tape is loaded by moving the ray in by hand and when the tray is down, you then push down the left hand tape loaded sensor with your finger and the machine load ring will operate thinking its taking tape around the head. Press play and you can see if the take up reel moves or not and check the tension with you finger. You can see if the pendulum arm swings over to drive the takeup reel or not.

If its a work reel motor issue then it will also be an issue in fast forward or rewind which will be extremely slow or not working and cutting out.

The forward tension can be adjusted, assuming the machine is not faulty. A potentiometer sets the take-up torque of the reel motor in playback/record mode. On this machine the service manual says it is RV309 on the SS-16 board which is in between the tuner board and the bottom YC25 board. The service manual says to use a torque tension test tape and set the tension to 80 gram. If you don't have one, then follow the instructions at http://www.palsite.com/100tech.html under the heading "no tape transport". The chassis design principle of the HF100 is similar to the SLC30.

Otherwise, replacing the faulty part will still be necessary.

regards Noel (betaheaven.com) Australia

K Lambert
Thursday 3rd May 2012
6:48 pm U.K.

kn2000@talktalk.net

Hi Ben:It sounds like either the forward tension is way out and not taking the tape up quick enough, or the reel drive bushing may be worn and not turning the right spool.Could also bee a faulty capstan motor or drive IC.

Where are you based?If it's the UK drop me a line via e-mail.

Hpe this helps................Kevin

administrator
Thursday 3rd May 2012
12:36 pm U.K.

admin@palsite.com

"Bob" please read:http://www.palsite.com/chatguide.html

Ben Dixon
Thursday 3rd May 2012
9:35 am U.K.

dixonbdiens@telkomsa.net

Hi

I recently found a Sony Betamax SL-C30 video recorder after months of searching. I'd like to use it to save some childhood videos which is still on Beta tape. Problem is the Recorder seems to bunch up the tape, no matter how I adjust the tracking. I get the picture to look OK, although the audio seems poor. But being years since I've viewed the tapes, I have no idea how good it should be, compared to CD/DVD quality audio and video.

Any suggestions, on why the recorder bunches up the tape?

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