RF modulator connections
 

So I bought a fancy JVC DVD recorder with HDD to go along with my
Thomson PVR, only to discover it has no RF modulator. So to
distribute the output round the house I have to use a VCR.

But I also have a dead VCR, and so could cannibalise its modulator if
only I knew what some of the connections are. It is (was) a Sanyo,
the modulatr is by Jalco with identifying mark 6E213 and 12V (12 volts
I imagine).

The connections are labelled AD, MOD+B, VD and BST+B. Can anyone
interpret these for me, or direct me to somewhere where I can find
out?

--
Steve Blinkhorn

For £29.99, why not try this....?
http://www.maplin.co.uk/products/mod...moduleno=33050
Shipping is free if you spend £30 !

'Composite video and stereo audio inputs are via phono (RCA) sockets'

Stereo Audio inputs..... does it produce 6.552 Nicam??

"Steve Blinkhorn" wrote in message
...
So I bought a fancy JVC DVD recorder with HDD to go along with my
Thomson PVR, only to discover it has no RF modulator. So to
distribute the output round the house I have to use a VCR.

But I also have a dead VCR, and so could cannibalise its modulator if
only I knew what some of the connections are. It is (was) a Sanyo,
the modulatr is by Jalco with identifying mark 6E213 and 12V (12 volts
I imagine).

The connections are labelled AD, MOD+B, VD and BST+B. Can anyone
interpret these for me, or direct me to somewhere where I can find
out?

--
Steve Blinkhorn

"Zach" wrote in message
...
'Composite video and stereo audio inputs are via phono (RCA) sockets'

Stereo Audio inputs..... does it produce 6.552 Nicam??



Nope, it just mono ( see the FAQ`s)

On Sat, 14 Aug 2004 22:59:55 +0100, "Dave Walker"
wrote:


"Zach" wrote in message
...
'Composite video and stereo audio inputs are via phono (RCA) sockets'

Stereo Audio inputs..... does it produce 6.552 Nicam??



Nope, it just mono ( see the FAQ`s)

helpful pointer too faq would be nice

"Steve Blinkhorn" wrote in message
...
So I bought a fancy JVC DVD recorder with HDD to go along with my
Thomson PVR, only to discover it has no RF modulator. So to
distribute the output round the house I have to use a VCR.

But I also have a dead VCR, and so could cannibalise its modulator if
only I knew what some of the connections are. It is (was) a Sanyo,
the modulatr is by Jalco with identifying mark 6E213 and 12V (12 volts
I imagine).

The connections are labelled AD, MOD+B, VD and BST+B. Can anyone
interpret these for me, or direct me to somewhere where I can find
out?

--
Steve Blinkhorn

Although cannibalising a modulator from a dead Vcr seems a good idea, just
knowing the connections may not be enough. For example what is the default
UHF channel for it's output? How can this be changed if necessary? Are the
input/output levels automatically controlled by the module or by external
circuitry? I think that you need to get hold of the manufacturer's data
sheets for these and other data before getting too involved.

Richard.

"Brendan DJ Murphy" wrote in message
...

For £29.99, why not try this....?
http://www.maplin.co.uk/products/mod...moduleno=33050
Shipping is free if you spend £30 !

No good as it uses the scart output of the JVC that is meant to go to the
TV

helpful pointer too faq would be nice

Right hand side of the page, ` View this products FAQ's ` in large blue
print.

"Richard" wrote in message ...

Although cannibalising a modulator from a dead Vcr seems a good idea, just
knowing the connections may not be enough. For example what is the default
UHF channel for it's output? How can this be changed if necessary? Are the
input/output levels automatically controlled by the module or by external
circuitry? I think that you need to get hold of the manufacturer's data
sheets for these and other data before getting too involved.

It is a good idea! I've used it many times. BUT you need a
modualator from an older VCR, or one with an old design. These
commonly have inputs labelled A, G, V, +; can you guess what those
are?? The input voltage seems to be 5,6,9 or 12 volts. Start low and
up it if it doesn't work. Some have two power connections, one for
loop-through and one for the modulator so connect both. Really old
vcrs have separate loop-through and modulator gubbins, so if you need
you'll have to use and power both. There are often adjustments for
sound and video modulation level, accessable through the screening.
It sounds like the modulator you have is integrated too tightly with
the control logic of the vcr, or possibly doesn't handle all the
modulation on board. Perhaps it was tunable throughout the UHF band.
I think you'll be lucky to scavenge and use one with that capability.

Good luck,
Alex

"Steve Blinkhorn" wrote in message
...
So I bought a fancy JVC DVD recorder with HDD to go along with my
Thomson PVR, only to discover it has no RF modulator. So to
distribute the output round the house I have to use a VCR.

But I also have a dead VCR, and so could cannibalise its modulator if
only I knew what some of the connections are. It is (was) a Sanyo,
the modulatr is by Jalco with identifying mark 6E213 and 12V (12 volts
I imagine).

The connections are labelled AD, MOD+B, VD and BST+B. Can anyone
interpret these for me, or direct me to somewhere where I can find
out?



The problem with most older VCRs is that they only output channel 30-39.
I use a relatively readily available, and free! quite compact Pace analogue
satellite receiver (to feed a surveillance camera around the house) the
output of which covers the UHF band, and allows one to programme the
required channel output in the on-screen menu.
However it still requires a SCART input, which begs the question, how did
you manage when you used the video?


--
Steve Blinkhorn