hundleton1 Posted October 26, 2014 Posted October 26, 2014 hi all just replaced the pannel at my perants. all good apart from my internal speaker, no sound at all from it at all, it's a 16 ohm unit, Iv double checked all wireing and I'm in the speaker connections on th board, I have tested the speaker and it good, I have also checked the vol pot on the board and still no joy any one got any ideas ?
datadiffusion Posted October 26, 2014 Posted October 26, 2014 Speaker fuse ok? Resistance of the wiring to the speaker, measured at the panel when shorted at the far end = ? So, I've decided to take my work back underground.... to stop it falling into the wrong hands
hundleton1 Posted October 26, 2014 Author Posted October 26, 2014 Well resolved it sort of. The speaker is only on 4 foot of cable. Pannel in airing cupboard up stairs and keypad down in kitchen. After further testing is it actually working but very quietly. Can even hear it from 8 foot away. Tried the volume controle no diferances. It's a Knight Small Teletone Speaker , it's only small but thought I would get a bit of sound out of it
norman Posted October 26, 2014 Posted October 26, 2014 Check it's not terminating via a resistor in the speaker. Nothing is foolproof to a sufficiently talented fool.
hundleton1 Posted October 26, 2014 Author Posted October 26, 2014 I did check that funny enough and it straight to the speaker. Sorry I meant can't hear it from 8 foot, only when you a foot or so you can just hear it. Got my suspicions on this thing now. Any ideas what teletone is ? Looking at the sheet from the website it list frequency responce as 4khz not range of frequencys. I'm guessing this is for something else ? Phone tones perhaps
james.wilson Posted October 27, 2014 Posted October 27, 2014 I would say its failed. Its is a security sounder securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount.
efficient_systems Posted December 8, 2014 Posted December 8, 2014 I know this is an old thread now but just in case, the blue volume control pot on the control panel in this system is anti-clockwise for louder, clockwise for quieter. I know this is counter intuitive but this is how it is designed! The type of pot they have used is usually for mounting on the reverse side of the board, I guess they just had them left over from an older design or something. Hope this helps.
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