Buzzing Veritas Alarm Box

[Guest]

I've had the panel open and there was nothing visibly loose inside. I can't screw it tighter to the wall without disturbing a mass of wires that I think I'd better not touch!

mrtickle????? what a silly name to use.....

depending on how old your veritas is....... four screws with No. 2 phillips head which hold the transformer in, if it an old with a plaggy cage tough....

:!: don't fry yourself on the 240

[Guest mrtickle]

mrtickle????? what a silly name to use.....

Ahem

depending on how old your veritas is....... four screws with No. 2 phillips head which hold the transformer in, if it an old with a plaggy cage tough....

:!: don't fry yourself on the 240

Plaggy = plastic? (sorry for being thick). Does tough in that sense mean I would be needing a whole new panel?

[Guest mrtickle]

no it means you wont have anything to tighten up. If there are holes in the transformer you could try fitting bolts. The reason they vibrate is because its de-laminating and the metal buzzing. If you stick them back together it will stop. You can also replace the tx but you will need a specialist for this

Thanks - I think I'll have another look tomorrow when it's light and I'll be able to see with the power off

[Guest mrtickle]

If the panels screwed to a hollow surface plaster board ect, the sound is worse, if this is the case then rubber washers between the panel and the wall.

Indeed yes, it's on paster board . Hmm. I can't remove the panel to put rubber washers between it and the wall easily as the top-left screw is partially behind the circuit board and inaccessible.

As Mr Happy thought, it turns out that the transformer is mounted on a plastic cage so although I have tightened the screws a bit, I don't think this is compressing the transformer at all. It's just stressing the plastic behind it? I'll try to find some rubber to put behind the transformer but still inside the case. Otherwise bolts sounded good!

ps. I'm sure there must be a knack to putting the lid back on with the little tamper-proof square of plastic in place without it falling off at the last moment and sounding the alarm! I've cheated and stuck it to the lid with blu-tack.

[Guest Peter James]

Indeed yes, it's on paster board . Hmm. I can't remove the panel to put rubber washers between it and the wall easily as the top-left screw is partially behind the circuit board and inaccessible.

As Mr Happy thought, it turns out that the transformer is mounted on a plastic cage so although I have tightened the screws a bit, I don't think this is compressing the transformer at all. It's just stressing the plastic behind it? I'll try to find some rubber to put behind the transformer but still inside the case. Otherwise bolts sounded good!

ps. I'm sure there must be a knack to putting the lid back on with the little tamper-proof square of plastic in place without it falling off at the last moment and sounding the alarm! I've cheated and stuck it to the lid with blu-tack.

Not familiar with Texecom panels but most PCB's clip out so you can then get to the screw holes.

[Guest mrtickle]

What is this tamper proof square??? I've not seen that in a veritas panel...

On the PCB is a microswitch with a spring sticking out of it. The first time I opened the case a little square of plastic about 1cmx1cm fell down at the same time that the tamper alarm went off (and I nearly fell off the chair in shock) so I don't know exactly where it came from. But I guess that it goes between the spring and the lid so that the switch is "pressed" when the lid is closed. It's all very fiddly. (If I had a digital camera I'd include pics).

Thanks for the tip about PCBs clipping out. However I'm not overly confident doing that though because some of the wiring in there looks extremely fragile, and I don't want to get into a situation with potentially the house alarm sounding and me not knowing the engineer's code or being able to stop it

I bought some washers from the plumbing section of Messers Block and Quayle's shop today. Had to cut small notches out of them as they were a little too wide, but they are in now, inside the case behind the transformer. I can still hear it buzzing if I put my ear to the wall and I've left the foam in behind the panel for now. I'll see how it goes over the next week or so; I'm expecting the house to be freezing when I get back after xmas.

Re the voltage thing - I believe that following CENELEC harmonisation the UK supply is 230V +10% −6%. Meaning 240V is still within the tolerance. But anything from 216.2V-253V could be coming into my house. And all household equipment should accept any voltage within the specified range. But what was printed on the transformer in the Veritas R8? Just "230V". Not even "230-240V"!

[Guest]

On the PCB is a microswitch with a spring sticking out of it. The first time I opened the case a little square of plastic about 1cmx1cm fell down at the same time that the tamper alarm went off (and I nearly fell off the chair in shock) so I don't know exactly where it came from. But I guess that it goes between the spring and the lid so that the switch is "pressed" when the lid is closed.

I'd guess not, can't say as I've ever seen a bit of plastic just magically held in place for the tamper spring before now. The small bit of plastic falling out and the alarm sounding will have been a coincidence, the tamper spring should be depressed by the lid.

[breff]

Just a thought, is it the little plastic fixing designed to protect the mains input terminal strip?

Thats what I thought, its about 20mm square with 1 or 2 circular lugs on it.

[Guest mrtickle]

Oh! Er well if someone could describe where it's supposed to go I'll put it back in the right place next time

[Billy@Solutions4CCTV.com]

A tranny ehh................

How tight should the nuts be then?

TIS THE SEASON TO BE ... JULIE ????