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Frandid
Tuesday 15th August 2017
10:04 pm U.K.

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mDeplo,

You probably didn't clean enough the stationary audio head on the fixed ACE assembly, especially the top and bottom part part of it. Use a lot of alcohol and also don't hesitate to clean each part of the tape path including all guides and pinch roller. Usually the tape takes dirt from one guide to another then to the heads etc. Also don't forget to clean the top and bottom part of the rotating head drum, you'll have to take out the little tape holder above the head drum (2 screws, be very careful it might break very easily specially if the white plastic has become yellowish and brittle) otherwise you can't really clean it completely, see what may happen if this part has an infinitesimal (not sure this word exists in english, = very tiny) part of dirt just below this tape holder : https://www.youtube.com/watch?v=fX6gXt8PZgI

Don't touch the mechanical settings (screws) of the fixed head, it is almost impossible to fix them back correctly again unless you are very experienced. (Especially on the SL-HF950 and the SL-C9 ). You can touch the electrical settings to give a little more volume if you want, check them on the repair manual.

Chris
Tuesday 15th August 2017
11:21 am U.K.

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I am in the UK & have a Sony HF950 with a faulty Hall effect sensor (Drum sensor) Where would be a i be able to get a replacement from & is there an equivalent available ?

Thanks Chris

Frandid
Monday 14th August 2017
9:54 pm U.K.

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David,

My SL-T50ME both records and plays in NTSC 4,43 Mhz and 3.58 Mhz and Beta II and Beta III and also of course in PAL and french and middle east SECAM. I suppose one NTSC is for the USA and the other for Japan, but not sure, you should check wikipedia ;-).

Beta III is the equivalent of VHS LP, yet not as slow it seems. There is no equivalent of Beta I on PAL and SECAM machines and no equivalent of Beta III on PAL and SECAM Betamax neither .

Gabriel
Monday 7th August 2017
8:13 pm U.K.

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Avr2,

As far as I know, PAL machines run at Beta-II speed. I would like to see the quality difference among B-I and B-II system.

mDeplo,

Have you tried playing back an own recording? This way you'll have a better clue to see the fault. Also try with a different tape.

There is an internal audio level adjustment, but trimming its value usually yields to higher hiss and noise.

Also, don't forget to have a look to the pinch roller and capstan shaft.

Regards,

Gabriel

mDeplo
Sunday 6th August 2017
4:30 pm U.K.

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Hi everybody!

I have a problem with my SL-C80E vcr.

After running ten minutes of a dirty cassette (white dust on the top side of the tape), sound became so low it's hardly even hearable.

I cleaned the whole tape path from that white dust the tape left, picture is clear with no problems, but sound is still very very low and noisy.

What can it be, as audio head seems to be clean??

Thank you!

Marco

AVR2
Sunday 6th August 2017
11:20 am U.K.

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Did standard-play PAL Betamax decks run at the equivalent of Beta-I or Beta-II speed?

I've only recently discovered about the whole Beta-I/II/III debacle in the USA. The tape running time disparity between NTSC and PAL seems far too great for PAL to be Beta-I as standard; for example, an L500 tape ran for 130mins in PAL, but only 60mins in NTSC Beta-I.

PAL and NTSC VHS tapes didn't have anywhere near *that* much disparity, in fact it was pretty much the same as between PAL Beta and NTSC Beta-II (where the PAL tape only had an extra 10 minutes over the Beta). So would it be fair to say that mainstream Beta decks in the UK all ran at the equivalent of Beta-II speed, and so we never actually got to see how good it *could* be?

DAVID BRUNNER
Thursday 3rd August 2017
6:55 pm U.K.

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Frandid I readed the characteristics of the 2 videos but I don't understand why the SL-T30ME play and record in NTSC in 4,43 Mhz?, the NTSC has 3.58 Mhz

Frandid
Thursday 3rd August 2017
1:40 am U.K.

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David,

they know they are not identical, I'm sure one of the administrators will correct this soon or later.

The SL-T50ME has a more complete NTSC section, slow motion and 2X speed, the SL-T30ME hasn't got any of these features.

DAVID BRUNNER
Wednesday 2nd August 2017
1:21 pm U.K.

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Frandid this also happens to me, perhaps they think that the SL-T30ME and the SL-T50ME are identical

Frandid
Wednesday 2nd August 2017
11:33 am U.K.

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To the administrators of the site :

On the SL-T30ME page the 3 Specifications / Technical / Accessories links are wrong, they lead to the SL-T50ME page !

Frandid
Wednesday 2nd August 2017
2:10 am U.K.

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George,

The best place to find a Betamax VCR is Ebay.

The best PAL/SECAM/NTSC model is the SL-T50ME. Very pure picture and good colors.

It has a correct slow motion and 2X speed.

The 2 other models I know are the SL-T30ME and the SL-800ME but they are basic and don't have 2X speed and no slow motion for the SL-T30ME I think.

There are not many tri standard models so you should check Ebay every week.

You could also check the french site "Leboncoin.fr", it's where I found my own SL-T50ME.

There are some internet shops selling Betamax parts throughout the world (a good one which once sold me an IC for my SL-C9 F is located in Greece) also some chinese shops on Ebay have some parts.

Some people here from UK, Australia, Spain and France may also have some parts you might need for these multi standard machines.

Rich
Tuesday 1st August 2017
12:32 pm U.K.

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Hi all.

I have a problem with my Sony slhf100ub and wanted to ask some advise please.

When playing a hifi tape back the hifi light lights up as normal but also the green sound light is on too. It's the same with it's own recordings too.

The linear audio on non hifi tapes is mute for around five seconds before it comes back on after pressing play, forwards and backwards search.

Any suggestions would be very welcome please.

Regards.

Rich.

Gabriel
Monday 31st July 2017
5:35 am U.K.

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David, I only suggested "spraying" the contacts as a remedy for quickly fixing the tape insertion issue. Of course you can thoroughly clean them with isopropyl or, even better, if you have a replacement, change them.

However, there are contact cleaner products "zero residue", which perform really nice on this rescue tasks.

DAVID BRUNNER
Monday 31st July 2017
3:06 am U.K.

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Gabriel I think that is better clean with alcohol the metal contacts

The potenciometers with a dry cloth is enough

The liquid for contacts is more comfortable but really not clean, only in mixed with the dirt

Gabriel
Sunday 30th July 2017
6:40 pm U.K.

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Miguel,

With some contact cleaner you can spray the switches detecting the tape insertion. It is typical when the VCR has been kept stored for long time.

The colour issue might be due to head contamination/clogging or, more often, a defect on the YC board. It is sometimes due to failure of one of the chroma ICs and as long as they are Sony's own designs (CX series), they are difficult to source.

You say you solved it, what was causing the colour problem?

George,

What model have you? I might have some spares.

George
Sunday 30th July 2017
3:35 pm U.K.

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Anyone knows where I can get parts?

Thanks

Miguel
Sunday 30th July 2017
10:27 am U.K.

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Anyway, thanks very much. I fixed it yesterday!!!!!

Miguel
Sunday 30th July 2017
10:23 am U.K.

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Excuse me, is Betamax sl-f30. ... I don't know why I wrote sl-f45....

DAVID BRUNNER
Sunday 30th July 2017
5:21 am U.K.

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Miguel, your video nor appears in this page, I hope that it will add soon, is PAL :)

I recommend download or buy the service and aligement manual

Here there are some solutions for repair but sometimes you need tools as multimeter, osciloscope, frequency counter and other tools exclusive for each video

I think that the problem of the load can are a sensor of interruptor type that not drive the current, a cable internal cut, needs a ohmeter for check, the multimeters has ohmeter

Check the voltages of power supply as appear in the manual

Too I have a colour problem in a video, for this needs a osciloscope and PAL colour bars generator or other video or dvd in good state with PAL colour bars

After you should ajust as appears in the aligement manual

I didn't find the service manual, rare video but I like :)

Miguel
Saturday 29th July 2017
7:08 pm U.K.

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Hello, I have Betamax Sony sl-f45. It's Play, but it have two problems:

1- I can insert tapes, but expel tapes

2- Image is black and white.

Can someone help me solve those problems? Thanks

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