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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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Noel Higgins
Sunday 9th August 2015
1:08 am U.K.

noelmh@nospam.tpg.au

Richard,

The machine is good and probably only has minor issues with switches etc. However that mucks up the operating sequence and so for safety sake, by design, the machine shuts down.

It might also be a combination of things. Mechanical and switch related. Take of the black load gear that the only rubber belt in the machine sits on and check the underside of it.

Many of these crack causing the gear teeth to spread and jam. See http://www.palsite.com/pcat_gear.html

A tight belt may aggravate this. If you use the original belt but rough up the inside of the V groove on the black pulley with a sharp blade to increase friction it might work OK with the original parts.

The tape ring loading end sensor switch toward the back left hand side of the machine might also be out of adjustment, so the machine does not know that the tapes properly loaded which is why it unloads after a short delay.

You need to take the load mechanism out of the machine to get access to and check the tape loaded switches.

regards Noel

Richard
Saturday 8th August 2015
1:25 pm U.K.

rsleeman@live.co.uk

Kevin. I forgot to ask....do I need to take out the cassette carriage to get to the inserting switches?

Richard.

Richard
Saturday 8th August 2015
12:58 pm U.K.

rsleeman@live.co.uk

Kevin.

The belt was not a direct replacement but a slightly smaller and thinner one just to see if it would temporarily work til I can source a replacement.

I tried the manual insertion again by turning the spiral gear and when the tape was fully inside the vcr the threading action did not happen. I left the tape in for a few minutes whilst I got on with something else and all of a sudden it sprang to life and threaded. All the tape transport functions work great and I have been making recordings to test the quality. I've not ejected the tape yet as I'm weary it won't accept another tape.

Richard.

K lambert
Saturday 8th August 2015
12:43 pm U.K.

kn2000@talktalk.net

Richard

I not you state you changed the tape loading motor belt.

Was this with one of the correct size or a lot tighter?

The tae insertion switches are at the sides of the cassette insertion mechanism.

Also as Noel has mentioned these suffer with poor/leaky transistors. I've seen that on a few HF100 's too.

......Kevin

Richard
Saturday 8th August 2015
8:56 am U.K.

rsleeman@live.co.uk

Hi Noel.

I've just got a tape into the machine by manually turning the spiral gear. When it was fully in the threading ring didn't take the tape around the heads so I turned the black loading gear a bit and then the tape was taken around the head.....the vcr then unloaded and ejected the cassette 😢😢

Seems like it's knackered.

Richard.

Richard
Saturday 8th August 2015
8:12 am U.K.

rsleeman@live.co.uk

Hi Noel.

Thank you for the explanation. I will have another look and try your suggestions a little later today and let you know the outcome. 😆

Thanks again.

Richard.

Noel Higgins
Saturday 8th August 2015
12:51 am U.K.

noelmh@nospam.tpg.au

Richard,

The Sony SLC9 load mechanism failure can have many causes. The machine is not showing a blinking amber load light to indicate a fault so it has not been trying to load and indicating a time out failure.

The metal gears cover off one known issue. The machine has a microprocessor dedicated to load and unload function. The electronic drive transistor can fail and sometimes take out a fuse.

The sense switches tell the microprocessor the conditions 1/ cassette in (sensed by two switches is series) 2/ cassette up (unloaded) and 3/ cassette down (loaded). When the cassette reaches the loaded position the metal bar moves and start the tape threading motion around the heads. The motor is not even trying to load the cassette

With the cassette held into the opening, manually operate the spiral gear to load the cassette and check that the plastic bar in the centre of machine side of the tape load mechanism is engaged with the holder. These sometime slip off if a cassette jams.

Once you get the cassette down the machine should take over and load the tape.

Because this fault is so tricky I have built an interface to tell me what the switch conditions and also it enables me to slave the load mechanism whilst in the machine to check out the mechanical action. I had to do this to isolate whether the loading faults are mechanical/ electrical or both.

regards Noel (betaheaven.com) Australia

regards Noel

alm7rom
Friday 7th August 2015
7:34 pm U.K.

alm7rom_15@hotmail.com

Sorry for the first post because i have problem in this page i can't post anything for a long time now ok

my problem in 2 sony sl-t7me

1-One does not have a color

2-And other video no power just red led in clock

i replace all capacitors in power the green power led won't light

alm7rom
Friday 7th August 2015
7:22 pm U.K.

alm7rom_15@hotmail.com

hi

michael wishlow
Friday 7th August 2015
5:48 pm U.K.

aerobicsparadise@gmail.com

Hello,

I recently aquired a ED-V7000 from Japan recently and it does play but the tapes were ejecting on a angle.

Broke the machine down a shocked to see how flimsy the loading assembly was constructed, all plastic and was down right

warped and very wobbly.

My question is is there anyplace that one can source replacement assemblies anymore (I've tried the Sony parts distrubutor

without any luck) or has anybody retrofitted an assembly from an older machine.

Any thoughts or tips would be appreacted.

Richard
Friday 7th August 2015
5:38 pm U.K.

rsleeman@live.co.uk

Hi Kevin. Thanks for the reply and advice. It was sold by a charity that didn't have a tape to check all functions....

The inside is very clean indeed and even has what looks to be the original dc dc converter.

where are the tape inserting switches located please? The silver rod by the loading ring isn't bent or out of alignment to my eyes.

When I changed the tape loading belt the cassette carriage went inside and ejected straight away when switched on.

Regards

Richard.

K lambert
Friday 7th August 2015
5:29 pm U.K.

kn2000@talktalk.net

Richard.

That's the risk with E-Bay vcr's.Unless they've been serviced,refurbed.

No doubt you knew beforehand about this 'issue'.

The C9 is an amazing machine for it's time but DOES suffer with endless problems,unless you get a lightly used one or one that's had the problem areas seen too.

This one seems to have faulty tape insertion switches.

Also you can check the silver bar that of the cassette insertion mechanism.That too activates a switch and if bent or out of alignment will cause issues (it's at the base on the right side at the front of the loading ring mechanism. It's secured with one of those black disc plastic washers.

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

Richard
Friday 7th August 2015
11:29 am U.K.

rsleeman@live.co.uk

https://youtu.be/cr9ZDYlNsgw

This is a short video of the Sony betamax c9 problem.

Richard.

Richard
Friday 7th August 2015
10:26 am U.K.

rsleeman@live.co.uk

Hi all.

I've just bought a Sony c9 which I've now found out will not load cassettes (bought as untested from ebay). The cassette can be inserted fully into the machine but the motor will not take it in and load it. Does anyone have any suggestions please? Incidentally it's had the metal loading gear fitted to the tape carriage.

Regards

Richard.

Noel Higgins
Friday 7th August 2015
10:05 am U.K.

noelmh@nospam.tpg.au

Jim Jr,

The 50Hz/60Hz switch is most likely for the timer/clock to work properly if you are using the machine on a 240V 50Hz supply via a mains down converting transformer with an output tap for 110V AC.

regards Noel

Noel Higgins
Friday 7th August 2015
10:01 am U.K.

noelmh@nospam.tpg.au

Hellwyn,

Wagner or WES Components as they are also known in Sydney Australia sell belt kits for the Sony SLC5 and SLC7.

I also have the original Sony service manuals available for them.

regards Noel Higgins (betaheaven.com) Australia

Jim Jr
Thursday 6th August 2015
2:06 am U.K.

jim12@jims.bz

By the way, I'm in the USA. VCR bought in the USA from seller in USA.

Jim Jr
Thursday 6th August 2015
2:01 am U.K.

jim12@jims.bz

I just bought a used BetaMax SL-30 VCR and when looking at the back it says it is a 120V 60Hz 39W VCR but it also has a 50Hz and 60Hz switch on the back allowing one to switch it to either 50 or 60Hz. This switch is also above the power cord but not directly near the power cord. Why would there be a switch if it is only a 60Hz VCR? And the weird thing is that the switch is set for 50Hz. Is this 50Hz/60Hz switch for something other than the power? Could it have been repaired with a power supply that goes either 50 or 60 Hz? The seller indicated no problem with the VCR or that the switch would be needed to be set to 60Hz on the back. Help! I'm afraid to turn it on.

Gabriel
Tuesday 4th August 2015
9:56 pm U.K.

Nospam@gmail.com

Gary,

As a rule of thumb, I try to replace every Sanyo capacitor on the servo section of Sony C5 -C6 -C7. If memory serves me, they are light blue colored. It is good practice finding a good replacement (Panasonic or Nichicon are great) so as to get lasting good results.

Gary Haddow
Tuesday 4th August 2015
4:00 pm U.K.

gary.haddow@yahoo.co.uk

I have a Sony C7 which i have had since new and also an other one.The other one seems to have the servo wobles(i think both the capstain and the drum servo).Can any one give me some advice on which caps require to be replaced as i am keen to get it running again as the unit is mint both inside and out.I am an electrical engineer by trade so soldering is no issue.

Many thanks

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