Upon trying to use my Panasonic portable DVD player (DVD-LS90)
I noticed the remote control has no effect on the unit. The battery
is good and makes good contact.

Is there a easy way to determine if the problem is the remote
transmitter or the receiver in the DVD player?

Upon trying to use my Panasonic portable DVD player (DVD-LS90)
I noticed the remote control has no effect on the unit. The battery
is good and makes good contact.

Is there a easy way to determine if the problem is the remote
transmitter or the receiver in the DVD player?

Many camcorders, and digital cameras can "see" near-infrared light to
some extent. Point the remote at your camera, look at the camera's
monitor screen, press a button on the remote, and see if you see
"light" from the IR emitter diode.

If you do, the remote is at least transmitting... although it might be
transmitting the wrong unit-code (if it's switch-selectable between
units) or might be emitting gibberish (if it's been dropped, and the
internal crystal oscillator has been damaged enough to shift its
operating frequency too far).

If you don't see "light" when you push a button on the remote (and if
you do, when you try the same test on a couple of known-good remotes
of some sort) then there's a fair chance that your remote is frotzed.

--
Dave Platt AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!

On Wed, 30 Dec 2009 15:17:11 -0800, (Dave Platt)
wrote:

Upon trying to use my Panasonic portable DVD player (DVD-LS90)
I noticed the remote control has no effect on the unit. The battery
is good and makes good contact.

Is there a easy way to determine if the problem is the remote
transmitter or the receiver in the DVD player?

Many camcorders, and digital cameras can "see" near-infrared light to
some extent. Point the remote at your camera, look at the camera's
monitor screen, press a button on the remote, and see if you see
"light" from the IR emitter diode.

If you do, the remote is at least transmitting... although it might be
transmitting the wrong unit-code (if it's switch-selectable between
units) or might be emitting gibberish (if it's been dropped, and the
internal crystal oscillator has been damaged enough to shift its
operating frequency too far).

If you don't see "light" when you push a button on the remote (and if
you do, when you try the same test on a couple of known-good remotes
of some sort) then there's a fair chance that your remote is frotzed.

I just tried this. The remote is emitting. It is the DVD specific
remote control. Correct me if I'm wrong, but the chances are
that the receiver is the problem.

On Wed, 30 Dec 2009 18:22:19 -0500, wrote:

I just tried this. The remote is emitting. It is the DVD specific
remote control. Correct me if I'm wrong, but the chances are
that the receiver is the problem.

With DVD players, the remote and the player sometimes have a feature
where one remote can control two different identical players. The
setup on the player should says something like "remote 1" and "remote
2".

If you suspect the remote control:
1. Try using a digital camera to see if it's emitting. you've
already done that.
2. Find an identical remote control and try it. Good luck finding
one.
3. Find a computer, iPod, or PDA program that claims to emulate an IR
remote control.
4. Reset everything and start over. Reset the DVD player (somehow)
and remove the battery from the remote for some extended period.

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com
# http://www.LearnByDestroying.com AE6KS

Upon trying to use my Panasonic portable DVD player (DVD-LS90)
I noticed the remote control has no effect on the unit. The battery
is good and makes good contact.

Is there a easy way to determine if the problem is the remote
transmitter or the receiver in the DVD player?


** No.

But an easy way to check if the remote is driving the IR LED with current is
to hold it near a portable AM radio tuned to a blank spot on the dial.

As you press each button a distinctive buzzing should be heard and each
function should sound a little different.


..... Phil

On Wed, 30 Dec 2009 16:08:07 -0800, Jeff Liebermann
wrote:

On Wed, 30 Dec 2009 18:22:19 -0500, wrote:

I just tried this. The remote is emitting. It is the DVD specific
remote control. Correct me if I'm wrong, but the chances are
that the receiver is the problem.

With DVD players, the remote and the player sometimes have a feature
where one remote can control two different identical players. The
setup on the player should says something like "remote 1" and "remote
2".

If you suspect the remote control:
1. Try using a digital camera to see if it's emitting. you've
already done that.
2. Find an identical remote control and try it. Good luck finding
one.
3. Find a computer, iPod, or PDA program that claims to emulate an IR
remote control.
4. Reset everything and start over. Reset the DVD player (somehow)
and remove the battery from the remote for some extended period.

After re-initializing the DVD player and removing both the remote and
the DVD players battery the problem still exists.

Some time later I took the remote battery (2025) out once again.
By accident I put it back in backwards, for just an instant. Upon
re-installing it correctly the remote now operates the DVD player.

Any explanation to explain the above?

wrote:
On Wed, 30 Dec 2009 16:08:07 -0800, Jeff Liebermann
wrote:

On Wed, 30 Dec 2009 18:22:19 -0500, wrote:

I just tried this. The remote is emitting. It is the DVD specific
remote control. Correct me if I'm wrong, but the chances are
that the receiver is the problem.
With DVD players, the remote and the player sometimes have a feature
where one remote can control two different identical players. The
setup on the player should says something like "remote 1" and "remote
2".

If you suspect the remote control:
1. Try using a digital camera to see if it's emitting. you've
already done that.
2. Find an identical remote control and try it. Good luck finding
one.
3. Find a computer, iPod, or PDA program that claims to emulate an IR
remote control.
4. Reset everything and start over. Reset the DVD player (somehow)
and remove the battery from the remote for some extended period.

After re-initializing the DVD player and removing both the remote and
the DVD players battery the problem still exists.

Some time later I took the remote battery (2025) out once again.
By accident I put it back in backwards, for just an instant. Upon
re-installing it correctly the remote now operates the DVD player.

Any explanation to explain the above?
You were lucky enough to wipe its statusmemory wittout killing the chip.
Congratulations.

On Thu, 31 Dec 2009 06:14:08 +0100, Sjouke Burry
wrote:

wrote:
On Wed, 30 Dec 2009 16:08:07 -0800, Jeff Liebermann
wrote:

On Wed, 30 Dec 2009 18:22:19 -0500, wrote:

I just tried this. The remote is emitting. It is the DVD specific
remote control. Correct me if I'm wrong, but the chances are
that the receiver is the problem.
With DVD players, the remote and the player sometimes have a feature
where one remote can control two different identical players. The
setup on the player should says something like "remote 1" and "remote
2".

If you suspect the remote control:
1. Try using a digital camera to see if it's emitting. you've
already done that.
2. Find an identical remote control and try it. Good luck finding
one.
3. Find a computer, iPod, or PDA program that claims to emulate an IR
remote control.
4. Reset everything and start over. Reset the DVD player (somehow)
and remove the battery from the remote for some extended period.

After re-initializing the DVD player and removing both the remote and
the DVD players battery the problem still exists.

Some time later I took the remote battery (2025) out once again.
By accident I put it back in backwards, for just an instant. Upon
re-installing it correctly the remote now operates the DVD player.

Any explanation to explain the above?
You were lucky enough to wipe its statusmemory wittout killing the chip.
Congratulations.

Very interesting.

I'm late, but another idea is to buy a universal remote control. They
sell for 6 dollars at left-over stores and 10 or 20 elsewhere, and
you're bound to have another use for it too. See if it works the DVD
player.

On Wed, 30 Dec 2009 23:41:49 -0500, wrote:

After re-initializing the DVD player and removing both the remote and
the DVD players battery the problem still exists.

Oh well.

Some time later I took the remote battery (2025) out once again.
By accident I put it back in backwards, for just an instant. Upon
re-installing it correctly the remote now operates the DVD player.

Any explanation to explain the above?

The remote has a big capacitor across the battery so that when you
swap batteries, you don't loose your settings. When you reversed the
battery, you effectively discharged the battery thus clearing all the
settings. My guess(tm) is that the remote really does have a way to
switch between two DVD players, and you accidentally hit the magic
combination. You probably could have achieved the same results by
simply leaving the battery out for somewhat longer (i.e. overnight) to
be sure it's discharged.



--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com
# http://www.LearnByDestroying.com AE6KS

e for some extended period.

After re-initializing the DVD player and removing both the remote and
the DVD players battery the problem still exists.

Some time later I took the remote battery (2025) out once again.
By accident I put it back in backwards, for just an instant. Upon
re-installing it correctly the remote now operates the DVD player.

Any explanation to explain the above?


Follow up:

This morning I tried the remote again. It didn't work. I removed
the battery. I replaced it after a while. It still didn't work. I put
the battery in backwards. This time on purpose. Then I installed it
correctly. It works!

SO.....I just ordered a new remote. At least I now know that the
DVD player is fine and the remote is the problem. Thanks for all the
responses.

On Dec 31, 10:11*am, wrote:
e for some extended period.



After re-initializing the DVD player and removing both the remote and
the DVD players battery the problem still exists.

Some time later I took the remote battery (2025) out once again.
By accident I put it back in backwards, for just an instant. Upon
re-installing it correctly the remote now operates the DVD player.

Any explanation to explain the above?

Follow up:

This morning I tried the remote again. It didn't work. I removed
the battery. I replaced it after a while. It still didn't work. I put
the battery in backwards. This time on purpose. Then I installed it
correctly. It works!

SO.....I just ordered a new remote. At least I now know that the
DVD player is fine and the remote is the problem. Thanks for all the
responses.

Thanx for the follow-up.