Steve,

The 5 Amp is what I use these days. The machines demand a 4 Amp surge current at times so 3Amp is not enough for reliable operation over time.

cheers Noel

I thought I'd posted this but then "lost" this chat page. Now I've found you again so ...

I'd be happy to sell or give away our beloved SL-HF950 that is not powering up (previous was working just great also tray is a bit loose)

I don't want it to go to the tip! Also quite a load of old tapes.

I'm in Sydney Australia

Lydia,

I am in Melbourne and would be happy to buy the SLHF950 from you for repair. Contact me through betaheaven.com

regards Noel

Lydia,

If you don't want Noel to fix the machine, I'll be happy to come and collect it.

Cheers, Roderick

Hi guys need some assistance here ,my Sony c9 reel motor continuesly spins when I power system on am I right when I say it could be the reel motor mute transistor failing or what could it be ,also if someone has a service manual in PDF they can send me that would be great ..

Thanks Roderick - I feel Noel has first dibs! If that falls through then the machine i yours

thanks

Lydia

Hi, I have a Toshiba V51 and it does not eject the tape. Does anyone know how to do it manually? Thanks

I cannot get sound or video signals into my Sony SL-HF950. Playback of my movie collection is fine. Confused on what the issue is. I tried both the SCART connector and regular A/V inputs. No success. :(

For steve tutty,

The scart socket on the SLHF 950 is for playback only.

However you can modify this.

By wiring to the audio and video inputs.

You can get the scart pinout from the internet.

I have used what I called Phono cable, which is screened.

I got mine from Maplin Electronics, in the UK.

Not sure if they are still on the go.

Also it would be good to know.

Of the setup that you would be using this video in.

Say From a TV or Set Top Box.

And What types of AV connectors are provided.

You can get a Phono to BNC adaptor of Ebay.

This will allow you to connect to the Video in.

From A Phono Lead.

Usually Black 3 way, Red White and Yellow connectors.

Yellow is for the Video signal.

You can get a Scart plug which is switchable.

It has the three Red White and Yellow Phono Sockets.

That you can plug up the Black 3 way cable.

Making up a Scart To The Phono, Audio Inputs, and BNC Video Input.

Hope this helps you.

jeffoldbean.

I have the video BNC connector and my dvd player is attached to both audio/video in but still not getting signals into the Sony SL-HF950. I am thinking that the input circuitry maybe at fault. I can play prerecorded tapes okay but can't record any video or audio input signals.

Hi steve,

check that the video input selector switch is being operated correctly.

It maybe that if this machine has had it's front panel removed.

That the correct posn of the PCB mounted switch wasn't correctly alaigned.

When it was replaced.

Therefore not set to the correct posn.

When you select Video input.

Jeffoldbean.

Hello

I have a sony sl-hf 100

he has a problem every time I put an original movie in stereo sounds from time to time many times his voice goes out

I have also observed that when I make a recording the audio does not appear

I tried to see the CI003 but it does not correspond to the ITDA3800AS my device in that has a CX10023

thank you

certainly excuse my English

Hi manuel,

I think your machine has a worn or dirty Audio/Control head.

It is part of the ACE Head Assy.

There is more about it in the Repair Centre.

It looks like an ordinary Tape Head.

It records and plays back the Mono audio, Top track.

The bottom track controls the tape movement.

When worn, or needs cleaning.

You get the results in play back, and recording.

That you are telling us about.

It is most probably Worn.

And will need replacing.

But it is now.

Very difficult to find new ACE Head Assys.

Hope this helps.

Jeffoldbean.

Hi all,

I have 3 Sony HF100s. All work okay, but I find one of them plays a little quiet (normal audio), although beta Hi-fi appears fine. I have never been able to find a HF100 service/adjustment manual but understood many of the electrical adjustments are the same as a C30 - is that correct?

I don't have an alignment tape (but do have a scope). Could anyone advise on a simple method for increasing the (normal) audio output level on my machine?. I never have any sync issues, so assume the ACE head is pretty much mechanically aligned.

Any advice gratefully received.

Rob

Hi Rob

That issue on the SLHF100 is common.

The Sanyo M40 seems to have a better overall mono edge track sound than the Sony HF100.

It could either be high usage and the control track mono sound head is a bit worn or dirty (not that likely).

It could be you have a bad component to the mono sound board and you can increase the output and recording level.

They are labelled and under a silver can to the top or second board as I remember.

IF the pot's don't allow adjustment then the IC or a cap or two has probably failed.

I have worked on a Sanyo M20 and two M40 's where that mono sound IC had indeed failed as you couldn't increase the output, and recording was low there too. On the later Beta's the IC did more work than on the earlier ones ,so if it went wrong then other parameters were not able to compensate.

Obviously look at head wear ,tape path alignment and dirt first. Also back tension too.

Hope this helps........................Kevin

Thanks Kevin - good to hear from you.

The machine had pretty low hours on it from what I can tell, so hoping its just aging electronics that need a tweak. Tape path and mechanical alignments look untouched (original paint intact), no sync problems on playback - and applying a slight force to the ACE head (left/right/down) doesn't change the volume at all, so I'm assuming alignment is okay.

I assume it's the "AM5 board" I need to look at? It's either at the rear or perhaps underneath the tuner - I can find that out.

When I use "your" VTC5000, the VU meters on my transfer equipment peak around -12db. The problem HF100 peaks at around -18db. It's not terrible, but could be improved.

If you think the pot is labelled with something obvious I'll take another look.

Rob.

Hi everyone - my first post!

I was recently given a Sony SL-30 (1984?). It's in fair condition, but a has weird issue..

When plugged in, the spool motor spins up for about five seconds, shuts off and the tape mech. goes through a routine of loading / ejecting 3 times (no tape inside), finishing in the loaded state.

All front-panel controls are unresponsive at this point, including the power button (remains on) - the clock however, can be set ok.

I can get a tape into the machine during it's crazy load/eject cycle if I'm very quick! - once in, the machine appears to operate normally.

Have removed the black leaf switch to the RH side of the loading mech and cleaned the contacts. It's not that it would seem.

Many thanks for any tips :)

Richard

HI

I am new here.

I get 2 x Sony SL C9 - one in bad condition for spares another I hope will be able to fix.

Problem is that I can not find service manual - can somebody have it? willing to send it?

Failure is that it wont load the tape ... rechecked all micro switches for casset accept, for both positions , tape in - all seems OK...

any idea what else can be problem?

Thanks

Hello Peter,

Here you go: https://www.eserviceinfo.com/index.php?what=search2&searchstring=Sony+Betamax+VCR+SL-C9E%2C+SL-C9

Yes I Know but I can download only 3 rar files - it seems that part 4 and 5 is missing - that is the message from my rar unpack-er

thanks anyway....