Any TV/areal/vid/DVD experts?!

[Lois]

Had out electricity turned off yesterday for maintenence and when it came back on I have no output from my video player, not even the flashing clock and its the same with my DVD player.

My TV works fine apart from the fact I cant get any signals! I have freeview but not even terrestrial channels are working.

The set up is quite confusing as I have the TV, DVD, Video and freeview all linked up to eachother through scarts etc.

How Can I fix it!!

[FourWheelDrift]

All plugged in? Not a silly question, some people with loads of wires fine plugs in them doing nothing

In that case if you have something working swap it's socket with one that doesn't work.

If it still doesn't work it could be a fuse blown. Might have happened if there was a power spike when they shut off or on the power I suppose.

Try that first.

[Lois]

All plugs are in. Left exactly how it was in the morning when it worked.

Have swapped the plug socket with the video and checked fuse but all's ok.

[ThatPhilBrettGuy]

anonymous said:

[redacted]

I you disconnect all the cables from say, the DVD and just have it plugged in will it switch on then (i.e. the clock works etc)?

[Lois]

I have deduced that it's definately the Video.

The set up I have is really odd! The Power supply to the DVD player runs through the Video player via scart lead.
When I plugged the DVD straight into the mains it worked.

Still no luck on the Video player and all the TV does is say Bad Signal when it's on.

[Plotloss]

Fuse in the video plug?

[Lois]

Changed it and still didn't work

[JamieBeeston]

anonymous said:

[redacted]

Did you turn all of the items off prior to the electrical works... and only turn them back on after power was restored?

if not, might be the video has gone pop.

[vex]

Does sound like the vcr has gone pop.

If it is not getting power or not turning on it will attenuate any signals trying to pass through it.

Hence the poor uhf channels and the lack of signals passing to you dvd.

Have you checked the fuse in the vcr as well as its power lead? These are normally where the lead runs into the device.

Chris

[Lois]

I can understand the DVD not working because the power goes through the VCR but following all the leads, the freeview and TV run independently.

[vex]

Yes but the tv signals have to pass through the VCR for it to be able the record from any of the channels.

If the VCR is dead, then it will not pass any signals.

Check your UHF input and output connections, a final check would be to disconnect these two and plug them together, signal should then be fine.

I would still check the internal fuse on the actual VCR (not the plug fuse) I susspect that has popped with the power surge as everything turned back on.

[dilbert]

If the video has gone pop under these circumstances, ie still connected during major power outage, two things come to mind.

Firstly, if the local electricity supplier is responsible for the power outage, you may be able to claim for damage to your equipment. They have rigorous standards that they have to observe, even under power outage, and restoration.

Secondly, the power supply inside the VCR will more than likely have a separate internal fuse. Your local repair man may be able to replace this for you. You may be able to investigate this yourself.

[Lois]

Right well the video has been disconnected and everything else put together again.
It works somewhat but a lot of my channels have gone kaput! all jittery

[vex]

Just a quick reminder needed, are you running EVERYTHING over scart or is some of it as additional UHF Channels?

How long was the power off for, could the tuning deveices (freeview, TV, VCR) lost thier settings?

Any chance you could post a pic, or email me a diagram, I am sure we can sort it just need to get my head round what you have got.

Chris

[Lois]

I think it was all through scarts.
All other appliances work fine now the VCR is out the equation.
The VCR is definately dead! Power was off for a couple of hours I think...wasn't in but had a letter in advance. Power to the DVD player ran through the VCR as did the ariel.
Currently have no VCR, may well be an internal fuse so will have to have a propper look at it.

[chrisjl]

anonymous said:

[redacted]

anonymous said:

[redacted]

As you've said it twice, I guess it's deliberate, but power-over-SCART? That doesn't sound very likely to me (unless your video/DVD uses some wierd proprietary power-daisy-chaining extension to the standard?)

http://en.wikipedia.org/wiki/Scart

[Lois]

haha...err...god knows I just plug different leads in until it works!

The DVD had no direct power supply though...plug was redundant. The only think that connected it was the scart to the VCR so assumed it must have gone through there, especially when the VCR blew and no supply went to the DVD!

[JamieBeeston]

SCART doesnt supply power.

Power has to come from a Plug into the back of the unit.

If its a set of seperates (ie indicidual DVD / VCR / TV) and not some combined jobbie, then it should be all indivudually powered.

VCR popped i would wager, if new plug doesnt work, could try lifting lid to locate internal fuse, or just junk it and Buy a new one / DVD Recorder / TiVO

J

[vex]

SCART can carry power but (from memory) it is only 12v.

This is how TV's detect that a 'player' has turned on as it looks for the presents of 12v on one on the pins (pin8 IIRC)

The voltage could also be presented over one of the unused pins, although how it would get there without an external psu would be a challenge.

We used to use the pin8 power trick to control some early satellite switches.


>> Edited by vex on Tuesday 1st March 08:09

[chrisjl]

vex said:

SCART can carry power but (from memory) it is only 12v.

It's not power, it's just a DC signal that happens to be fairly high (0v = nothing to see here, 6v = I'm sending a 16:9 signal, 12v = I'm sending a 4:3 signal). You wouldn't get very far trying to draw a few amps out of it!