dual i/r's with dual flipdowns

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mo12v

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Joined: September 30, 2003

Location: Afghanistan

Posted: August 24, 2009 at 5:37 PM / IP Logged

Have same Brand & Model 10.4 Flip Downs with built in DVD's in 2009 Ford Expedition.

Front Flip Down interferes with Rear Flip Down on I/R Heaphones.

Causes a bad "squeal".

Turn off Rear Flip Down Noise goes away & can listen to Front Flip Down.

Turn Off Front Flip Down & turn On Rear Flip Down, Noise goes away & can listen to Rear Flip Down.

Question is:

How to block or be able to operate Front & Rear at the Same time using I/R Headphones??

Any HELP is greatly appreciated..........

Don't Learn from Others Mistakes

You Might Be the One That Knows.

i am an idiot

Platinum - Posts: 13,667

Joined: September 21, 2006

Location: Louisiana, United States

Posted: August 24, 2009 at 6:32 PM / IP Logged

If the IR is not defeatable via the menu, and there is a particular unit you want to work, we disassemble the unit and either remove the ILEDs or cut a trace on the circuit board that feeds them.

Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB

Ween

Platinum - Posts: 1,364

Joined: August 01, 2004

Location: Illinois, United States

Posted: August 24, 2009 at 8:01 PM / IP Logged

hi,

or see if transmitting frequency of i/r emitters is switchable/selectable. myron and davis used to have i/r emitters (for their headrest units) that were on a small circuit board...and available on channel a or b. then you'd use dual source headphones. or disable both sets and use a separate dual channel emitter setup.

mo12v

Platinum - Nominee - Posts: 2,748

Joined: September 30, 2003

Location: Afghanistan

Posted: August 25, 2009 at 5:27 PM / IP Logged

Thank you for the info.........really appreciate it

Want to keep the Front Unit I/R & was going to try a different I/R Channel for the Rear, but have been told that I/R will still cause problems with signals.

So, have ordered RF type Transmitter & Headphones to connect to the Outputs of Rear Unit.

Believe it or not, the Manufacturer tells me to "break" the I/R bulbs in Rear Unit...!!!!

Will try to cut wires or scratch PCB I/R Rear Unit & use RF for Rear.........

Sounded so simple, but has turned into a bummer

Don't Learn from Others Mistakes

You Might Be the One That Knows.

i am an idiot

Platinum - Posts: 13,667

Joined: September 21, 2006

Location: Louisiana, United States

Posted: August 25, 2009 at 8:38 PM / IP Logged

If you break the LEDs, that is pretty much unreversible. Cutting the trace will be a much better option for you.

Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB

Mike M2

Platinum - Posts: 2,652

Joined: June 29, 2005

Location: United States

Posted: August 27, 2009 at 6:20 AM / IP Logged

We simply put tape over the IR's inside the plastic cover. You can't see it and is totally reversable....

Mike M2

Tech Manager

CS Dealer Services

chrisl6211

Member - Posts: 3

Joined: September 01, 2009

Location: Florida, United States

Posted: September 01, 2009 at 3:35 PM / IP Logged

Blackmore Mobile used to offer a daul channel IR transmitter exactly for that problem. Their overheads also all had dual channel selectable outputs as well. Haven't used them in a while but might be worth a call.

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dual i/r's with dual flipdowns

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