elecbob Posted January 4, 2010 Share Posted January 4, 2010 Hi, System ADE Poly Gen4 with LCD keypad Is there any way in which I can permanently enable the LCD and Keypad backlight on the Accenta Gen4 LCD Keypad. The current default state is that they illuminate for about 30 secs following a keypress. My previous ADE system (LED Keypad) had backlit buttons on all the time which I found quite helpful. Bob Quote Link to comment Share on other sites More sharing options...
ravis94 Posted January 7, 2010 Share Posted January 7, 2010 well there is the two LED lights on the facia of the keypad? The idea of it is that it is supposed to be hidden from an intruder so he/she cannot try tamper with the system further. I prefer it. Quote Link to comment Share on other sites More sharing options...
Secware Posted January 8, 2010 Share Posted January 8, 2010 Hi Bob, I have spoken to Honeywell about your query, and unfortunately they say you can not do this. I hope this answers your question for you. Regards Elaine Quote Link to comment Share on other sites More sharing options...
elecbob Posted January 8, 2010 Author Share Posted January 8, 2010 Hi Elaine, Thanks very much for the information. I guess we got used to the previous illuminated keypad, as it is positioned in a darkened area and is a help when initially pressing the keys. If there had been a simple way of enabling it we would have given it a try. Regards, Bob Quote Link to comment Share on other sites More sharing options...
Secware Posted January 8, 2010 Share Posted January 8, 2010 Hi Bob, Sorry I could not come back to you with the right answer this time. Thanks Elaine Quote Link to comment Share on other sites More sharing options...
Secware_Tech6 Posted January 8, 2010 Share Posted January 8, 2010 BOb There is an unsupported way. The Accenta keypad uses 2 transistors to control the backlight. These can be bypassed. Obviously any pcb mod will invalidate the warranty and is not a security warehouse supported mod. Anyway I have attached a picture showing the location of the transistors. Quote Link to comment Share on other sites More sharing options...
ravis94 Posted January 8, 2010 Share Posted January 8, 2010 Elecbob All you do is just press reset first so the backlight illuminates... Quote Link to comment Share on other sites More sharing options...
Secware_Tech6 Posted January 9, 2010 Share Posted January 9, 2010 Ravis, i think Bobs intention was to have the backlight illuminated all the time, not just during keypress's etc. Quote Link to comment Share on other sites More sharing options...
elecbob Posted January 10, 2010 Author Share Posted January 10, 2010 Hi, Thank you Secware_Tech6 and Ravis for all your help and suggestions. I have now linked out the collector and emitter of the two LED control transitors (blue wire links on attached photo). Now in good books with my better half who prefers the permanently illuminated keypad!!. Thanks again to all. Bob. Quote Link to comment Share on other sites More sharing options...
Secware_Tech6 Posted January 11, 2010 Share Posted January 11, 2010 No Problem, glad you sorted it. Nice soldering by the way! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.