Hi Basil,
At 23:35 07/01/00 +0300, you wrote:
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>Sorry, but I have a couple of more questions. what is a TOSLINK =
>connecter/transmitter or reciever? What do they do? Do i need one of =
>these TOSLINK connectors if I have a sound card that has a RCA digital =
>output? Do I need a sound card with didigtal outputs to record =
>digtitally? Also, How can I get my mini disc to play in a car that only =
>has a CD player? Is there a way that I can connect my mini disc player =
>to a CD player, and make the music work? Please explain as I am new to =
>the MIni DIsc World. Thank You. Basil Fakhry.
Okay, a few questions there! This may be useful to some other people who
are new, so I may as well answer them fully! Let's take them one at a time:
Q: What is a TOSLink transmitter/receiver connector?
A: This is basically an IC (chip) consisting of an LED (transmitter)
or a photodiode (receiver) and a driver, housed in a plastic casing
which accepts the TOSLink plugs which you find on the end of optical
cables. There are 3 pins sticking out of the bottom which you wire
up to +5V & 0V (power) and the third is the TTL digital input/output
which takes the same format as S/PDIF (co-axial/RCA) except for the
fact that it works on 0V/5V (standard TTL digital levels) instead of
about +/- 500mV (S/PDIF).
Q: What do they do?
A: They convert from electrical to optical (transmitter) or optical to
electrical (receiver), depending on what's required.
Q: Do I need one of these TOSLink connectors if I have a sound card
that has an RCA digital output?
A: Yes you do if you want to connect to something which only has an
optical input (like an MD portable). You will also need a driver
circuit to convert the S/PDIF signal (+/- 500mV) to a TTL digital
signal (0V/5V). There are boxes around (about 35 to 50 UK pounds)
which will do this - I strongly suggest you buy one of these if you
aren't electronically minded and have never touched a soldering iron!
You could do a lot of damage to several things if you're not careful.
Q: Do I need a sound card with digital outputs to record digitally?
A: Well, yes. If you want to record digitally off your PC anyway. If you
just want to record CDs digitally, get yourself a CD player with an
optical output (eg. Technics 390/490/590 or Yamaha 493. In fact most
CD-players seem to have them these days).
Q: How can I get my MD to play in a car that only has a CD player? Is
there a way that I can connect my mini disc player to a CD player,
and make the music work?
A: Hmm...don't think you can. You can get adaptors which let you connect
anything with a line output to a tape machine in a car stereo - these
have an ordinary tape head mounted inside an empty tape casing, which
just converts the line output from your MD (or whatever) into a
magnetic field, which the head in the tape machine picks up, just like
reading an ordinary tape. This isn't possible (for obvious reasons, I
hope!!) with a CD player. The only way to do it would be if your
car CD player has an extra line input on the back somewhere, but I
wouldn't go fiddling if you're not sure what you're doing :-)
Hope this answers your questions :-)
Cheers,
Wrighty
P.S. UK is 230V +/-5% @ 50Hz - so is the rest of Europe and that's the way
it's staying. My multimeter says it's actually 238V at the moment, but
that's within the +/-5% tolerance. NOWHERE is moving UP to 250V - that
could cause problems with a lot of appliances which are only rated to work
at 240V, especially things with heating elements in...that's another topic
altogether - probably on alt.electrical.mains.voltages or something :-)
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