At some point I hope to be testing a PVR with a rebuilt power board, however
the only TV at the workshop is a Casio pocket TV (no scart connector -
obviously).

Will a typical VCR present a UHF signal out from scart in???

Thanks.

On 05/07/2010 21:38, ian field wrote:
At some point I hope to be testing a PVR with a rebuilt power board, however
the only TV at the workshop is a Casio pocket TV (no scart connector -
obviously).

Will a typical VCR present a UHF signal out from scart in???

Yes.

--
Adrian C

On 05/07/2010 22:28, Adrian C wrote:
On 05/07/2010 21:38, ian field wrote:
At some point I hope to be testing a PVR with a rebuilt power board,
however
the only TV at the workshop is a Casio pocket TV (no scart connector -
obviously).

Will a typical VCR present a UHF signal out from scart in???

Yes.


It depends, if the box output can be set as composite video (CBVS) then
yes. However, some Freeview boxes etc. output RGB which will not be
convertible by a VCR. I think you can get a modulator, or make one.

On 06/07/2010 12:54, Clyde wrote:
On 05/07/2010 22:28, Adrian C wrote:
On 05/07/2010 21:38, ian field wrote:
At some point I hope to be testing a PVR with a rebuilt power board,
however
the only TV at the workshop is a Casio pocket TV (no scart connector -
obviously).

Will a typical VCR present a UHF signal out from scart in???

Yes.


It depends, if the box output can be set as composite video (CBVS) then
yes. However, some Freeview boxes etc. output RGB which will not be
convertible by a VCR. I think you can get a modulator, or make one.

I've looked into making one myself, basically you would need a modulator
(one from an old VCR or SKY analogue box would do) a power supply for
the modulator (some are 5v, some are 12v, not much current so a basic
power supply or battery would probably do) and an IC (can't remember the
number but I can find out if you like, along with details of construction)

On 06/07/2010 12:54, Clyde wrote:
On 05/07/2010 22:28, Adrian C wrote:
On 05/07/2010 21:38, ian field wrote:
At some point I hope to be testing a PVR with a rebuilt power board,
however
the only TV at the workshop is a Casio pocket TV (no scart connector -
obviously).

Will a typical VCR present a UHF signal out from scart in???

Yes.


It depends, if the box output can be set as composite video (CBVS) then
yes. However, some Freeview boxes etc. output RGB which will not be
convertible by a VCR. I think you can get a modulator, or make one.

I've looked into making one myself, basically you would need a modulator
(one from an old VCR or SKY analogue box would do) a power supply for
the modulator (some are 5v, some are 12v, not much current so a basic
power supply or battery would probably do) and an IC (can't remember the
number but I can find out if you like, along with details of construction)

Failing that an old Commodore Amiga plug in modulator unit or similar
will do the job, you will have to input the sound seperately but they do
the RGB to CBVS conversion and modulate sound through an external
connection, if you don't have one I'm sure you could get one cheap on
Ebay. The IC in these could be used as part of building your own unit.

On 06/07/2010 12:54, Clyde wrote:

It depends, if the box output can be set as composite video (CBVS) then
yes. However, some Freeview boxes etc. output RGB which will not be
convertible by a VCR. I think you can get a modulator, or make one.

Though, it would be very rare if a PVR or a freeview box did not output
composite video from its SCART.

For not all SCART sockets on the back of TV sets supported RGB in, and
then CVBS compatibility would also be required for users chaining other
recording equipment such as VCRs, yeah mainly for Freeview/Sat boxes but
even using a PVR as source.

The IC number Clyde you are probably looking for is the MC1377P?

COLOR TELEVISION - RGB to PAL/NTSC ENCODER
http://www.datasheetcatalog.org/data...a/MC1377DW.pdf

Just took a trip out to the garage to check my stack of old DMAC BSB
(Broken Satellite Bits) scrap PCBs. :-)

--
Adrian C

"Clyde" wrote in message
news:PUEYn.177996$Hs4.78749@hurricane...
On 06/07/2010 12:54, Clyde wrote:
On 05/07/2010 22:28, Adrian C wrote:
On 05/07/2010 21:38, ian field wrote:
At some point I hope to be testing a PVR with a rebuilt power board,
however
the only TV at the workshop is a Casio pocket TV (no scart connector -
obviously).

Will a typical VCR present a UHF signal out from scart in???

Yes.


It depends, if the box output can be set as composite video (CBVS) then
yes. However, some Freeview boxes etc. output RGB which will not be
convertible by a VCR. I think you can get a modulator, or make one.

I've looked into making one myself, basically you would need a modulator
(one from an old VCR or SKY analogue box would do) a power supply for the
modulator (some are 5v, some are 12v, not much current so a basic power
supply or battery would probably do) and an IC (can't remember the number
but I can find out if you like, along with details of construction)


Yes please - a convenient place to upload is
News:alt.binaries.schematics.electronic

"Adrian C" wrote in message
...
On 06/07/2010 12:54, Clyde wrote:

It depends, if the box output can be set as composite video (CBVS) then
yes. However, some Freeview boxes etc. output RGB which will not be
convertible by a VCR. I think you can get a modulator, or make one.

Though, it would be very rare if a PVR or a freeview box did not output
composite video from its SCART.

For not all SCART sockets on the back of TV sets supported RGB in, and
then CVBS compatibility would also be required for users chaining other
recording equipment such as VCRs, yeah mainly for Freeview/Sat boxes but
even using a PVR as source.

At least 2 of my PVRs have a menu setting to select RGB or CVBS - CVBS gives
the clearest picture, I would have expected exactly the opposite!

Anyway the PVR was set to CVBS and I didn't have any problem.

Clyde wrote:
: It depends, if the box output can be set as composite video (CBVS) then
: yes. However, some Freeview boxes etc. output RGB which will not be
: convertible by a VCR.

I would be extremely surprised if *ANY* Freeview box cannot be switched to
CBVS on its SCART output! It is far more universal than RGB.

On 06/07/2010 15:21, Brian Mc wrote:
wrote:
: It depends, if the box output can be set as composite video (CBVS) then
: yes. However, some Freeview boxes etc. output RGB which will not be
: convertible by a VCR.

I would be extremely surprised if *ANY* Freeview box cannot be switched to
CBVS on its SCART output! It is far more universal than RGB.

The Scart RGB interface actually relies on the CVBS signal to be
present, in order to provide the sync pulses. There are no 'syncs on
green'. However on Sky boxes the actual video signal on CVBS was (still
is ?) muted in RGB output mode.


--
Mark
Please replace invalid and invalid with gmx and net to reply.

http://www.paras.org.uk/