Cordless headphones and TV RCA sockets? (was: OT-ish: UK electricalssold with 2-pin plugs?)
 

Lobster wrote:
I've just been given a set of cordless headphones for Xmas; it comes
with a base station powered from a wallwart.

The plot thickens...!

These object of me getting these headphones was to use them on a TV (I
watch the telly while on the rowing machine in order to stave off the
abject boredom, and apparently I have the TV volume so high - to drown
out rowing sounds - that it disturbs the neighbours). Said TV has no
headphone socket, but does have SCART and RCA line outputs. The
headphone transmitter box comes with a 3.5mm jackplug plus a Y-adapter
to two RCA plugs.

However, I can get no sound out of the phones at all when connected
through the RCA plugs; I've replicated this on other AV equipment and
also verified that they work fine when plugged in via the 3.5mm jack.

Now I'm aware that line outputs are lower voltage than headphone sockets
and won't drive standard plug-in headphones; however I've read in
several places that they *will* work with cordless headphones. The
manual for my set
(http://resources.jvc.com/Resources/0...0/XC048ien.pdf) makes no
mention of this issue, but does show a diagram of them connected up
using RCA sockets, and furthermore the Y-adapter is provided; which
surely implies that what I'm attempting should work?

Any comments please?

Thanks
David

(PS by way of explanation - I intended this to be x-posted from uk.d-i-y
with this new query appended to a previous, related one; but forgot to
add the x-post so it's ended up as two threads - duh)

Cordless headphones and TV RCA sockets? (was: OT-ish: UK electricals sold with 2-pin plugs?)
 

Lobster said...

However, I can get no sound out of the phones at all when connected
through the RCA plugs; I've replicated this on other AV equipment

Do you mean they also don't work when connected to other kit such as a
CD player etc?

The manual mentions the input sensitivity as:
Reference input level: 350 mV

A standard CD player usually puts out about 2v

So your headphones should work with just about any RCA audio out.

The RCA output on my Sony TV is affected by the volume control, i.e. no
output on the RCA's if volume turned down, could that be the case with
yours?


--
Ken O'Meara
http://www.btinternet.com/~unsteadyken/

Cordless headphones and TV RCA sockets? (was: OT-ish: UK electricals sold with 2-pin plugs?)
 

"Lobster" wrote in message
m...
Lobster wrote:
I've just been given a set of cordless headphones for Xmas; it comes
with a base station powered from a wallwart.

The plot thickens...!

These object of me getting these headphones was to use them on a TV (I
watch the telly while on the rowing machine in order to stave off the
abject boredom, and apparently I have the TV volume so high - to drown out
rowing sounds - that it disturbs the neighbours). Said TV has no
headphone socket, but does have SCART and RCA line outputs. The headphone
transmitter box comes with a 3.5mm jackplug plus a Y-adapter to two RCA
plugs.
...............
Are you CERTAIN that the TV's RCA sockets are outputs? That's fairly
unusual.....more usual is 3 x RCA's for L, R and video INPUT from say a
video camera...
You can get a scart "plug" with switchable (in/out) RCA sockets on it's back
face.

Cordless headphones and TV RCA sockets? (was: OT-ish: UK electricals sold with 2-pin plugs?)
 

"James Hession" wrote in message ...

"Lobster" wrote in message m...
Lobster wrote:
I've just been given a set of cordless headphones for Xmas; it comes
with a base station powered from a wallwart.

The plot thickens...!

These object of me getting these headphones was to use them on a TV (I watch the telly while on the rowing machine in order to
stave off the abject boredom, and apparently I have the TV volume so high - to drown out rowing sounds - that it disturbs the
neighbours). Said TV has no headphone socket, but does have SCART and RCA line outputs. The headphone transmitter box comes
with a 3.5mm jackplug plus a Y-adapter to two RCA plugs.
..............
Are you CERTAIN that the TV's RCA sockets are outputs? That's fairly unusual.....more usual is 3 x RCA's for L, R and video INPUT
from say a video camera...

You beat me to it!
Furthermore, if these sockets are on the front of the set, and there is
a third yellow video socket associated with them, you can be sure that they are
inputs.

--
Graham.

%Profound_observation%

Cordless headphones and TV RCA sockets? (was: OT-ish: UKelectricals sold with 2-pin plugs?)
 

I often get asked to solve this one and it is true that most people
have connected to an INPUT on the tv rather than an output. As the
last poster said, if there is a yellow socket together with the other
two on the tv, then they are inputs.

If the RCAs (phonos) on the tv are definitely outputs then there are
often settings on the menus for outpul level.
There were also some sets where the output level from the phonos was
variable with the normal volume buttons....but only when the tv sound
was muted. (Nokia and Akai CRT sets, a few years ago).

If you cannot use the phonos because they are not outputs, then get a
scart to phono adaptor (with a switch on it so you can set it to
output rather than input. Usually best to use scart 2 on the tv as
this often outputs whatever is on the screen.

Look carefully at the symbols by the scart sockets for the one which
has a small square or circle with a two-way arrow (not just one
pointing inwards). This means that the socket functions as both input
and output.

It would help a lot to know the make and model of the Tv if you still
have a problem.

Cordless headphones and TV RCA sockets? (was: OT-ish: UK electricalssold with 2-pin plugs?)
 

Graham. wrote:
"James Hession" wrote in message ...
"Lobster" wrote in message m...
Lobster wrote:
I've just been given a set of cordless headphones for Xmas; it comes
with a base station powered from a wallwart.

The plot thickens...!

These object of me getting these headphones was to use them on a TV (I watch the telly while on the rowing machine in order to
stave off the abject boredom, and apparently I have the TV volume so high - to drown out rowing sounds - that it disturbs the
neighbours). Said TV has no headphone socket, but does have SCART and RCA line outputs. The headphone transmitter box comes
with a 3.5mm jackplug plus a Y-adapter to two RCA plugs.
..............
Are you CERTAIN that the TV's RCA sockets are outputs? That's fairly unusual.....more usual is 3 x RCA's for L, R and video INPUT
from say a video camera...

You beat me to it!
Furthermore, if these sockets are on the front of the set, and there is
a third yellow video socket associated with them, you can be sure that they are
inputs.

A very good point! I had certainly asssumed so, I suppose on the basis
that I don't possess a camcorder but do have a separate surround-sound
speaker system on my main TV in the living room; ergo I hadn't
considered the possibility of an input to the TV.

Have now connected the phones to what is evidently bidirectional SCART
socket via an another adapter, and all is now well with the world. Many
thanks for the help!

David

Cordless headphones and TV RCA sockets? (was: OT-ish: UKelectricals sold with 2-pin plugs?)
 

On Dec 30, 1:11*pm, Lobster wrote:
Graham. wrote:
"James Hession" wrote in ...
"Lobster" wrote in edia.com...
Lobster wrote:
I've just been given a set of cordless headphones for Xmas; it comes
with a base station powered from a wallwart.

The plot thickens...!

These object of me getting these headphones was to use them on a TV (I watch the telly while on the rowing machine in order to
stave off the abject boredom, and apparently I have the TV volume so high - to drown out rowing sounds - that it disturbs the
neighbours). *Said TV has no headphone socket, but does have SCART and RCA line outputs. *The headphone transmitter box comes
with a 3.5mm jackplug plus a Y-adapter to two RCA plugs.
..............
Are you CERTAIN that the TV's RCA sockets are outputs? That's fairly unusual.....more usual is 3 x RCA's for L, R and video INPUT
from say a video camera...

You beat me to it!
Furthermore, if these sockets are on the front of the set, and there is
a third yellow video socket associated with them, you can be sure that they are
inputs.

A very good point! *I had certainly asssumed so, I suppose on the basis
that I don't possess a camcorder but do have a separate surround-sound
speaker system on my main TV in the living room; ergo I hadn't
considered the possibility of an input to the TV.

Have now connected the phones to what is evidently bidirectional SCART
socket via an another adapter, and all is now well with the world. *Many
thanks for the help!

David

Is the TV the LG 42LH4000 you mentioned in another thread?

Cordless headphones and TV RCA sockets? (was: OT-ish: UK electricalssold with 2-pin plugs?)
 

Mike wrote:
On Dec 30, 1:11 pm, Lobster wrote:
Graham. wrote:
"James Hession" wrote in ...
"Lobster" wrote in edia.com...
Lobster wrote:
I've just been given a set of cordless headphones for Xmas; it comes
with a base station powered from a wallwart.
The plot thickens...!
These object of me getting these headphones was to use them on a TV (I watch the telly while on the rowing machine in order to
stave off the abject boredom, and apparently I have the TV volume so high - to drown out rowing sounds - that it disturbs the
neighbours). Said TV has no headphone socket, but does have SCART and RCA line outputs. The headphone transmitter box comes
with a 3.5mm jackplug plus a Y-adapter to two RCA plugs.
..............
Are you CERTAIN that the TV's RCA sockets are outputs? That's fairly unusual.....more usual is 3 x RCA's for L, R and video INPUT
from say a video camera...
You beat me to it!
Furthermore, if these sockets are on the front of the set, and there is
a third yellow video socket associated with them, you can be sure that they are
inputs.
A very good point! I had certainly asssumed so, I suppose on the basis
that I don't possess a camcorder but do have a separate surround-sound
speaker system on my main TV in the living room; ergo I hadn't
considered the possibility of an input to the TV.

Have now connected the phones to what is evidently bidirectional SCART
socket via an another adapter, and all is now well with the world. Many
thanks for the help!

Is the TV the LG 42LH4000 you mentioned in another thread?

No - that would have been no problem as that model does have a headphone
jack. The big LG is in the living room; the 'problem' TV is an old 17"
CRT/DVD combo which is just used in conjunction with the aforementioned
rowing machine!

David