Touch lamp problems.
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Discussion

anonymous-user

Original Poster:

78 months

Tuesday 28th December 2010
quotequote all
Anyone know what could go wrong or is it built in obsolecence for them to pack in frown.

Tried fuse, bulb, wiring, taking it apart to look for loose wires etc, no joy.

Any idea what to try next before binning it frown,

Anyway how do they work/the switching inside the base ?

Gingerbread Man

9,173 posts

237 months

Tuesday 28th December 2010
quotequote all
Do they work on the principle of earth? You're earthed when you touch it?

Pete102

2,362 posts

210 months

Tuesday 28th December 2010
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Gingerbread Man said:
Do they work on the principle of earth? You're earthed when you touch it?
Nope, they use the concept of capacitance.

The human body has a certain capacitance, when you touch the lamp it adds to the lamps capacitance, I would then imagine a circuit board/controller looks for this capacitance change, probably through some sort of comparitor, and outputs a frequency to the lamp. (assuming its a 3 brightness jobby).

Probably knackered controller/circuit board. Manufacturer for spares or new one I reckon.

sorry

Globs

13,847 posts

255 months

Tuesday 28th December 2010
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Unsure of its history, but check the plug is wired with live and neutral in the right place. Brown to live. _If_ the lead wires are not polarised (i.e. both the same colour), try swapping them: do not do this is they are colour coded.

anonymous-user

Original Poster:

78 months

Tuesday 28th December 2010
quotequote all
Thanks for above. It's worked until recently so the wiring should have been ok in the plug.

Yup it was the 3 brightness type biggrin.

Was a BHS job so won't be worth chasing parts frown

If nothing else shows up off to the tip it goes unless i can rewire it to work like a bog standard table lamp. With a switch in the lead ?

blueg33

45,065 posts

248 months

Tuesday 28th December 2010
quotequote all
I have had 2 die on my, they just stop working (stay on) so I wired a normal inline switch into the lead

Pete102

2,362 posts

210 months

Tuesday 28th December 2010
quotequote all
speedyguy said:
Thanks for above. It's worked until recently so the wiring should have been ok in the plug.

Yup it was the 3 brightness type biggrin.

Was a BHS job so won't be worth chasing parts frown

If nothing else shows up off to the tip it goes unless i can rewire it to work like a bog standard table lamp. With a switch in the lead ?
Should be a peice of piss to do this.

Wiring from bulb to choccy block / suitably rated terminals, wiring in from switch, bypass controller, voila.

blueg33

45,065 posts

248 months

Tuesday 28th December 2010
quotequote all
Pete102 said:
speedyguy said:
Thanks for above. It's worked until recently so the wiring should have been ok in the plug.

Yup it was the 3 brightness type biggrin.

Was a BHS job so won't be worth chasing parts frown

If nothing else shows up off to the tip it goes unless i can rewire it to work like a bog standard table lamp. With a switch in the lead ?
Should be a peice of piss to do this.

Wiring from bulb to choccy block / suitably rated terminals, wiring in from switch, bypass controller, voila.
Mine were BHS ones too. It took me about 10 minutes to wire a switch into the lead (including time for the Mrs to interefere and take measurements regarding the lead length)

anonymous-user

Original Poster:

78 months

Wednesday 29th December 2010
quotequote all
Thanks.

Thanks guys smile
Pete & Blue. Job done just 'removed' sensor bit and wired round. Lamp works fine when plugged into socket smile
Just need to buy an inline switch now when i pass a diy shed smile