Aurora fault.
I suppose this might belong in modern tech section, the Aurora converter I have had for about 10 years has developed a fault, it works fine on the modulator output which I use most of the time. I used to use the video out to make recordings on a VCR and if I wanted to feed a TV with baseband video. The video out is now at a very low level and is no longer usable. Has anyone else experienced this? Does anybody mend these at all in England.
Graham. |
Re: Aurora fault.
I'm sure Darryl will be able to fix that!
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Re: Aurora fault.
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Incidentally, if it's just the baseband output that's affected, I would have thought the problem must be pretty local to that, as there can't be much circuitry between that output and the signal going into the modulator. |
Re: Aurora fault.
I take it the relevant phono plug and lead are beyond reproach? Could there now be a bad connection at the Aurora's phono socket due to stresses from heavy use? Does gentle manipulation at the socket make any difference?
Steve |
Re: Aurora fault.
I have seen very bad video caused by a missing terminating resistor at the input end of the cable.
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Re: Aurora fault.
I have experienced that with a new RCA RF modulator, chinese made. Some soldering to fix inside.>:(
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Re: Aurora fault.
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Re: Aurora fault.
Just to chime in:
If the modulated output is working properly than the line level driver must be in working order as that's what's used to drive the modulator. There is a 75 ohm terminating resistor in series with the jack that could conceivably be bad. It would be worth a check. If it checks out good as does the jack, then possibly the cabling or device it's connected to is presenting the fault. Darryl |
Re: Aurora fault.
Hi Can I ask is the resistor in question a smd type,I think it must be as when I had a look I didnt see any conventional types,also are there any precautions as to static?. Graham.
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Re: Aurora fault.
Graham,
Yes it's a surface mount device. It will be right along side the connector, closest to the back edge of the board. It may be marked 75- something. You do need to follow standard static procedures like grounding yourself before opening the case and working on the board. You should be able to easily check the resistor with a meter. Darryl |
Re: Aurora fault.
Hi.
Just a quick question. Would it be possible to measure the resistance ( from the phono socket ) to see if the 75R resistor has gone faulty? I'm assuming that if there was a bad connection then the video output would be a lot, lot greater than 75R. But of course even if the connections were OK the resistance measurement would be above 75R due to the other components. I think ( but may be wrong ) this would need to be done with a digital meter and probably with the unit powered down to avoid the possibility of damaging the circuitry? |
Re: Aurora fault.
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