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Question about Coaxial digital |
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#1 |
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Forum Member
Join Date: Apr 2006
Location: West Country
Posts: 2,904
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Question about Coaxial digital
On my sky HD box got a coaxial digital input also have one on my receiver which is a Yamaha RX v363. The one on my receiver says DVD so can this only been used only for a DVD player,
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#2 |
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Join Date: Oct 2004
Location: Buckingham
Posts: 28,534
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No. You can use it with anything which offers coax digital output such as your Sky box.
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#3 |
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Join Date: Apr 2006
Location: West Country
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Even though it says its for a DVD player on the receiver.
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#4 |
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Join Date: Oct 2004
Location: Buckingham
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Even though it says that just as the inputs on stereo systems marked CD, radio/tuner, MP3, AUX etc etc can actually be used interchangably (except for inputs designed specifically for record decks which have an extra pre-amp stage built in).
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#5 |
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Join Date: Apr 2006
Location: West Country
Posts: 2,904
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Good will order one then.
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#6 |
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Join Date: Oct 2004
Location: Buckingham
Posts: 28,534
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To clarify, co-ax optical connections were originally only offered on DVD players and not much else. As a bye the bye I use the single co-ax input on my old AV amp for my Blu-Ray player although with an optical / co-ax convertor gizmo.
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#7 |
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Join Date: Mar 2000
Location: UK
Posts: 2,270
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Coaxial and optical connectors are different ways of doing the same thing. As long as the devices at both ends have the appropriate sockets, it makes no difference which you use.
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#8 |
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Join Date: Apr 2006
Location: North Derbyshire
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Quote:
Coaxial and optical connectors are different ways of doing the same thing. As long as the devices at both ends have the appropriate sockets, it makes no difference which you use.
Mostly it's just an advertising con, people think as a CD/DVD is optical it's a direct clean signal straight from the disc, whereas it's just a crude conversion from the coaxial signal inside with an LED. |
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#9 |
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Join Date: May 2004
Location: Reading
Posts: 27,884
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Quote:
They aren't really 'different' - they are both the exact same coaxial signal, just with an LED stuck on the output (to convert it to a light signal) and a photo-transistor stuck on the input to convert it back to coaxial.
You could clearly trace the PCB tracks back from the sockets to a pair of resistors. The other side of the resistors were joined together and a single track led back to the driver IC. |
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#10 |
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Join Date: Apr 2006
Location: North Derbyshire
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Quote:
Several years ago when DAT recorders were new I took the lid off a Sony DTC1000 and on the top PCB were the sockets for the optical and coaxial SPDIF outputs.
You could clearly trace the PCB tracks back from the sockets to a pair of resistors. The other side of the resistors were joined together and a single track led back to the driver IC. |
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#11 |
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Join Date: Nov 2003
Location: Nailsworth, Gloucestershire
Posts: 10,402
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Quote:
They aren't really 'different' - they are both the exact same coaxial signal, just with an LED stuck on the output (to convert it to a light signal) and a photo-transistor stuck on the input to convert it back to coaxial.
Mostly it's just an advertising con, people think as a CD/DVD is optical it's a direct clean signal straight from the disc, whereas it's just a crude conversion from the coaxial signal inside with an LED. The only thing I would say, based on the systems I work on, is that optical interfaces are more likely to fail than electrical ones. But that doesn't mean that is also true of domestic equipment! |
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