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Back lit phones
#159678 08/02/07 10:33 PM
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srd1 Offline OP
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kxt-7453 and 7456, can you turn the back light off or will it stay on even when phone is on hook?

Thank you!

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Re: Back lit phones
#159679 08/02/07 10:53 PM
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I think it depends on what you have it connected to. In the TDA you have a few settings regarding backlighting. I'm not sure if they apply to the 7400 series phones.
On the TD's the backlight stays on even when idle.

Re: Back lit phones
#159680 08/03/07 01:33 AM
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I Haven't seen one but looking it up it said there is a 3 position switch for off-low-high
look at the back of phone, should be a small switch to control the back light.


“I have not failed. I've just found 10,000 ways that won't work.”
Re: Back lit phones
#159681 08/03/07 05:59 AM
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Yes, on the 7400 series there is a small switch behind the display that can be turned off.
MrG

Re: Back lit phones
#159682 08/03/07 08:14 AM
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srd1 Offline OP
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Thanks again!

Re: Back lit phones
#159683 08/05/07 10:27 AM
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As an aside, I had an issue with a 7730 that was in a bedroom. At night the backlight on the display was like a spotlight. It lit the entire room! I opened up the set and played around with various values of serries reistors in the lead to the backlight. I was able to get the display to a very low brightness that didn't light the room, but still plenty bright to see the display in the dark.


Bob
Re: Back lit phones
#159684 08/05/07 10:32 AM
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Board level alterations may be a bit more in depth then a lot of us feel comfortable with clap
MrG

Re: Back lit phones
#159685 08/05/07 12:36 PM
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7400 series will not work with a tda. Just the 7600's.


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Re: Back lit phones
#159686 08/05/07 12:52 PM
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Wow, don't tell that to my TDA-200 on a customer site. They might quit working :-)

Carl


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Re: Back lit phones
#159687 08/05/07 02:26 PM
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Reataylor,
I have 7400's working on TDA 50's and 100's. They do draw more power, so it's important to use the correct power supply.

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