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2100

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Posted Reply with quote  #16 
that one on left I've just tried, with fresh batteries, has become u/s on most buttons anyway, only the mute, the 1-2-3-4etc number buttons, and maybe one or two others seem to even transmit..not sure if there is any way to re-sensitive the button contacts on them or something.. 
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IanL-S

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Posted Reply with quote  #17 
The RCU on the right is a TP-304; the one on the left is TP-800. As they use different modes using the older one may well solve the problem you are having.

Ian
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2100

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Posted Reply with quote  #18 
so I'M in the market for a TP800 to try out, it  seems, unless there is a way to rejuvenate the button contact response on that one

is there any safe way to wash them ?

t/y
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IanL-S

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Posted Reply with quote  #19 

You could also try a TP-850 which is functionally identical (it also can be programed to control TV).

Definitely keep water away from them. You would need something that evaporate quickly - before it can get into the mechanism.

Ian
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AQUAR

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Posted Reply with quote  #20 
Buttons have lost their conductivity due to loss of the carbon "dust" in them.
You need to apply some conductive material over the bottom of the buttons.
Conductive paint (Jaycar) or adhesive dots of aluminium foil works for me. 
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2100

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Posted Reply with quote  #21 
thanks for that, I'm going to try it to resurrect it..because I don't think it actually had anywhere near as much use as the other current one has..
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2100

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Posted Reply with quote  #22 
which remote are these and can they be applied to any other model apart from TF5000 ?

https://i.ebayimg.com/thumbs/images/g/szkAAOSwaMxbtw-Q/s-l225.webp [s-l225] 
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2100

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Posted Reply with quote  #23 
So these adhesive foil bits or Jaycar carbon paint, where/how it is applied? to underneath of various buttons on rubber button pad ? (first time I ever pulled one of this style of remote apart) Topfield RC inside.jpg
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2100

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Posted Reply with quote  #24 
funny how they put the model # of the remote inside on that rubber button pad where it is normally invisible, isn't it?
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AQUAR

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Posted Reply with quote  #25 
The black "dots", on the underside of the buttons, are pushed onto the copper tracks below them when a button is depressed.

This provides a resistive bridge across the copper  tracks and so sends a signal to the controller that that button has been pressed.
When the resistance becomes too high you get no response.

Temporary fix (still working after a year on my effort!) is to glue aluminium foil dots onto these black dots.
Better option - buy some copper paint that is used to fix car window heater elements - Jaycar sell it as do various automotive shops.  
 
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IanL-S

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Posted Reply with quote  #26 
Quote:
Originally Posted by 2100
which remote are these and can they be applied to any other model apart from TF5000 ?

https://i.ebayimg.com/thumbs/images/g/szkAAOSwaMxbtw-Q/s-l225.webp [s-l225] 




Looks like an RCU for one of the old SD Toppys. The listing by Firebird suggests that the RCU is Mode 4 model TP-006

Ian
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2100

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Posted Reply with quote  #27 
Quote:
Originally Posted by AQUAR

Better option - buy some copper paint that is used to fix car window heater elements - Jaycar sell it as do various automotive shops.  
 


so paint the copper paint for example, on the button back-dots?
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Fred

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Posted Reply with quote  #28 
Yep,and use a specialist circuit board cleaner on the 'çopper' tracks to get all the gunk off.
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