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

Thank you!
Posted By: kevhawk13 Re: Back lit phones - 08/02/07 10:53 PM
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.
Posted By: OBT Re: Back lit phones - 08/03/07 01:33 AM
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.
Posted By: MrGemini Re: Back lit phones - 08/03/07 05:59 AM
Yes, on the 7400 series there is a small switch behind the display that can be turned off.
MrG
Posted By: srd1 Re: Back lit phones - 08/03/07 08:14 AM
Thanks again!
Posted By: AVCBOB Re: Back lit phones - 08/05/07 10:27 AM
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.
Posted By: MrGemini Re: Back lit phones - 08/05/07 10:32 AM
Board level alterations may be a bit more in depth then a lot of us feel comfortable with clap
MrG
Posted By: reataylor Re: Back lit phones - 08/05/07 12:36 PM
7400 series will not work with a tda. Just the 7600's.
Posted By: Carl Navarro Re: Back lit phones - 08/05/07 12:52 PM
Wow, don't tell that to my TDA-200 on a customer site. They might quit working :-)

Carl
Posted By: kevhawk13 Re: Back lit phones - 08/05/07 02:26 PM
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.
Posted By: county wide Re: Back lit phones - 08/05/07 04:18 PM
Quote
Originally posted by reataylor:
7400 series will not work with a tda. Just the 7600's.
thats funny did you read that in the install manual?
Posted By: MrGemini Re: Back lit phones - 08/05/07 06:43 PM
ReaTaylor, I don't know who told you that but
for the record
All of the TDA series support
the 7000, 7200, 7300,7400 and 7600 series of phone sets or PITS.
You do need the proper cards and power supplies.
MrG
Posted By: county wide Re: Back lit phones - 08/06/07 08:06 AM
hey G have you tried a kx-t 123230 to see if it
would come up on a hybrid port?
Posted By: MrGemini Re: Back lit phones - 08/06/07 08:36 AM
No, I haven't and can't forsee me trying that in the future as if the system is that old they can upgrade the phones as well. :toothy:
MrG
Posted By: county wide Re: Back lit phones - 08/06/07 08:58 AM
Believe it or not I used that model for all
kx-t and td quick setups.
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