I was reading Laserdisc is actually analog...?

Archived from groups: alt.video.laserdisc (More info?)

One of these days, I will probably locate schematics for my player and
tap into the signal and mount a demodulator somewhere in there and
drill a hole on the back for an AC-3 output. Then i could finally
watch Mortal Kombat.

My receiver is an Aiwa AV-DV70 with built-in DD/AC-3(optical and
coaxial)..... do you think this would have a demodulator? I assume not?
I really want to get digital surround out of my player because my
stereo system is pretty kickass(despite the aiwa receiver.. it
surprisingly sounds VERY good.) 220 watt Yamaha 4-way fronts, Yamaha
200 watt center, and 150 watt Yamaha surrounds topped off with a 200
watt Cerwin-Vega 15" subwoofer. :D

I used to have a *sweet* Yamaha receiver system but the right channel
blew.


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11 answers Last reply
More about reading laserdisc analog
  1. Archived from groups: alt.video.laserdisc (More info?)

    >One of these days, I will probably locate schematics for my player and
    >tap into the signal and mount a demodulator somewhere in there and
    >drill a hole on the back for an AC-3 output.

    AFAIK, there's no such thing as an internal demodulator.

    >Then i could finally
    >watch Mortal Kombat.
    >

    It seems to me that your player should be able to carry the disc's PCM signal
    (if you have a digital output of some sort) or at the very least give you
    access to analog audio.

    >do you think this would have a demodulator? I assume not?
    >I really want to get digital surround out of my player

    Your player is already equipped for PCM digital sound if it has a Coax or
    Optical digital output on it. It's only the AC-3 audio from these discs you're
    player cannot handle. What you need to add internally is the proper output for
    carrying the AC-3/RF signals to an EXTERNAL demodulator.
    Steve Grauman
  2. Archived from groups: alt.video.laserdisc (More info?)

    "Steve Grauman" <oneactor1@aol.com> wrote in message
    news:20041024003643.01525.00002499@mb-m17.aol.com...
    > It seems to me that your player should be able to carry the disc's PCM
    > signal
    > (if you have a digital output of some sort) or at the very least give
    > you
    > access to analog audio.

    His player is an older industrial model that can only read the analog
    sound channels.
  3. Archived from groups: alt.video.laserdisc (More info?)

    "half_eaten" <half_eaten.1em3ho@no-mx.forums.yourdomain.com.au> wrote in
    message news:half_eaten.1em3ho@no-mx.forums.yourdomain.com.au...
    >
    > One of these days, I will probably locate schematics for my player and
    > tap into the signal and mount a demodulator somewhere in there and
    > drill a hole on the back for an AC-3 output. Then i could finally
    > watch Mortal Kombat.
    >
    > My receiver is an Aiwa AV-DV70 with built-in DD/AC-3(optical and
    > coaxial)..... do you think this would have a demodulator? I assume not?
    > I really want to get digital surround out of my player because my
    > stereo system is pretty kickass(despite the aiwa receiver.. it
    > surprisingly sounds VERY good.) 220 watt Yamaha 4-way fronts, Yamaha
    > 200 watt center, and 150 watt Yamaha surrounds topped off with a 200
    > watt Cerwin-Vega 15" subwoofer. :D
    >
    > I used to have a *sweet* Yamaha receiver system but the right channel
    > blew.

    Listing your speakers in watts makes me think you still have a lot to learn
    about audio...

    Anyway, as has been recommended by several others, you might be better off
    finding one of the better units already modded, than trying to mod your
    seemingly sub-par player. YOu better start planning for the RF demodulator
    as well, unless you also pickup one of the top end a/v receivers from
    Denon(5000 series), Pioneer Elite (5X series), Yamaha RX-V1, Z-9, Z-1, you
    wont find too many receivers that have whats called an AC-3 RF in....
  4. Archived from groups: alt.video.laserdisc (More info?)

    Steve wrote "AFAIK there's no such thing as an internal demodulator."
    Steve, MSB offered to install an internal demodulator, as an option,
    on the laserdisc players that they sold. It was an extremely expensive
    option- around $650US! Much cheaper to buy a separate demodulator.
    Kevin.
  5. Archived from groups: alt.video.laserdisc (More info?)

    Actually precisionlaserdisc service did make a demodulator board you could
    put inside the LD player. They came out with it right before they
    disappeared. I have worked on a CLD-97 that had one of these added. It
    worked fine but there was one thing I did not like. It did not tap into the
    PCM digital out with a replay to select AC-3 when active. It had its own
    separate output. So you had a AC-3 bitstream output and a PCM for stereo or
    DTS. This now occupies two inputs on your receiver. The external
    demodulators that switch are a better option in my opinion.

    Kurtis


    "Kevin Hawerchuk" <KevHaw@webtv.net> wrote in message
    news:12032-417CD3EF-57@storefull-3255.bay.webtv.net...
    > Steve wrote "AFAIK there's no such thing as an internal demodulator."
    > Steve, MSB offered to install an internal demodulator, as an option,
    > on the laserdisc players that they sold. It was an extremely expensive
    > option- around $650US! Much cheaper to buy a separate demodulator.
    > Kevin.
    >
  6. Archived from groups: alt.video.laserdisc (More info?)

    Kurtis Bahr <kbahr@comcast.net> wrote in message news:4JadnS5yrKTfyeDcRVn-pQ@comcast.com...
    > Actually precisionlaserdisc service did make a demodulator board you could
    > put inside the LD player. They came out with it right before they
    > disappeared. I have worked on a CLD-97 that had one of these added. It
    > worked fine but there was one thing I did not like. It did not tap into the
    > PCM digital out with a replay to select AC-3 when active. It had its own
    > separate output. So you had a AC-3 bitstream output and a PCM for stereo or
    > DTS. This now occupies two inputs on your receiver. The external
    > demodulators that switch are a better option in my opinion.

    Is this it?

    http://www.bde.de/index-bde.htm
  7. Archived from groups: alt.video.laserdisc (More info?)

    That look like the European site. I know Precisionlaserdisc was working
    with what looked like an European head office, I don't know for sure. It
    looks like that site may still be active. I believe used demodulators are
    cheaper than their kits.

    As for precisionlaserdisc I know some people tried to get the internal kits.
    Some got them and for other Precisionlaserdisc just stopped contacting them.
    I once called them and they denied knowledge of the kits. Makes me think
    legal issues.

    Kurtis

    "Hugh Candlin" <no@spam.com> wrote in message
    news:Grifd.772368$Gx4.349715@bgtnsc04-news.ops.worldnet.att.net...
    >
    > Kurtis Bahr <kbahr@comcast.net> wrote in message
    > news:4JadnS5yrKTfyeDcRVn-pQ@comcast.com...
    >> Actually precisionlaserdisc service did make a demodulator board you
    >> could
    >> put inside the LD player. They came out with it right before they
    >> disappeared. I have worked on a CLD-97 that had one of these added. It
    >> worked fine but there was one thing I did not like. It did not tap into
    >> the
    >> PCM digital out with a replay to select AC-3 when active. It had its own
    >> separate output. So you had a AC-3 bitstream output and a PCM for stereo
    >> or
    >> DTS. This now occupies two inputs on your receiver. The external
    >> demodulators that switch are a better option in my opinion.
    >
    > Is this it?
    >
    > http://www.bde.de/index-bde.htm
    >
    >
  8. Archived from groups: alt.video.laserdisc (More info?)

    Kurtis Bahr <kbahr@comcast.net> wrote in message news:ydKdnTy8hegrIuDcRVn-pQ@comcast.com...
    > That look like the European site. I know Precisionlaserdisc was working
    > with what looked like an European head office, I don't know for sure. It
    > looks like that site may still be active. I believe used demodulators are
    > cheaper than their kits.
    >
    > As for precisionlaserdisc I know some people tried to get the internal kits.
    > Some got them and for other Precisionlaserdisc just stopped contacting them.
    > I once called them and they denied knowledge of the kits. Makes me think
    > legal issues.

    I don't see how they can deny knowledge of the kits

    http://www.precisionlaserdisc.com/ac3-whatisit.html

    http://www.precisionlaserdisc.com/rfdemod.html
  9. Archived from groups: alt.video.laserdisc (More info?)

    > Steve, MSB offered to install an internal demodulator, as an option,
    >on the laserdisc players that they sold. It was an extremely expensive
    >option- around $650US! Much cheaper to buy a separate demodulator.

    Wow. MSB's player was Pioneer based, right?
    Steve Grauman
  10. Archived from groups: alt.video.laserdisc (More info?)

    The MSB I saw was a Panasonic LX-990U and MSB also corrected the black level
    AGC issue.

    Nice unit.

    Kurtis

    "Steve Grauman" <oneactor1@aol.com> wrote in message
    news:20041026015718.24246.00002949@mb-m02.aol.com...
    >> Steve, MSB offered to install an internal demodulator, as an option,
    >>on the laserdisc players that they sold. It was an extremely expensive
    >>option- around $650US! Much cheaper to buy a separate demodulator.
    >
    > Wow. MSB's player was Pioneer based, right?
    > Steve Grauman
  11. Archived from groups: alt.video.laserdisc (More info?)

    Take a look at their home page. Precisionlaserdisc no longer exists and
    they refer you to the BDE website which is in Europe. I personally called
    Precisionlaserdisc a few times, early on they told me all about the Internal
    demodulator and they were excited, at the end they acted like they didn't
    know what I was talking about (right before they closed).

    Kurtis


    "Hugh Candlin" <no@spam.com> wrote in message
    news:d8kfd.29976$OD2.3255@bgtnsc05-news.ops.worldnet.att.net...
    >
    > Kurtis Bahr <kbahr@comcast.net> wrote in message
    > news:ydKdnTy8hegrIuDcRVn-pQ@comcast.com...
    >> That look like the European site. I know Precisionlaserdisc was working
    >> with what looked like an European head office, I don't know for sure. It
    >> looks like that site may still be active. I believe used demodulators
    >> are
    >> cheaper than their kits.
    >>
    >> As for precisionlaserdisc I know some people tried to get the internal
    >> kits.
    >> Some got them and for other Precisionlaserdisc just stopped contacting
    >> them.
    >> I once called them and they denied knowledge of the kits. Makes me think
    >> legal issues.
    >
    > I don't see how they can deny knowledge of the kits
    >
    > http://www.precisionlaserdisc.com/ac3-whatisit.html
    >
    > http://www.precisionlaserdisc.com/rfdemod.html
    >
    >
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