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24 minutes ago, bowlingman said:

Its 18.5v

AC voltage in seems about right & you say you have disconnected the battery

Have you power cycled it? (may be worth powering it off for a short duration then powering it back up)

If all that fails then I suspect its a faulty PCB.

I would start with checking the voltage and charging current from the battery leads, followed by general other voltages.

11v is too low so you either have a duff or flat battery or the panel is dragging the battery flat.

 

Never been a fan of Risco stuff so if I found something was broken, I would be looking to replace. The keypad is unlikely to last much longer I'd imagine.

15 minutes ago, datadiffusion said:

I thought it was long discontinued? But who is right? :)

 

You may be right I thought it may be because we are still buying keypads for them 

7 hours ago, MrHappy said:

It would appear gt600 is still in production, new endstations or even pcbs are still there to purchase

 

Ripping it all out is going be pricey...

Defo still in production....

I actually quote like the 595 & 600 (don't slate me too much lol)

Blimey fair enough. I knew keypads were still going.

 

Years back I loved the 816 etc...

 

Probably a bit like everyone says they used to like Scanny ;)

 

So, I've decided to take my work back underground.... to stop it falling into the wrong hands

 

Just now, datadiffusion said:

Blimey fair enough. I knew keypads were still going.

 

Years back I loved the 816 etc...

 

Probably a bit like everyone says they used to like Scanny ;)

 

Yes defo a scanny fan back in the day, 9600 was my favourite

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