mineoro fg/90

[RIMES]

I measured the voltage between the pins 1 and 8, I found 9.70 V.

[WM6]

What a waste of electronic parts. Take it away, one could build something really useful.

[Geo]

Originally Posted by WM6

What a waste of electronic parts. Take it away, one could build something really useful.

Hi Jaka.
In practice, Mineoro is a RF receiver. They can make it better but i think that they don't like a different design.

[Geo]

Originally Posted by Behkli

I measured the voltage between the pins 1 and 8, I found 9.70 V.

Also you can measure at pin1 and pin4, must be again 9.7V. If yes then it is a 555.
I believe that it is an oscillator for an IR Led at front of pcb.
My opinion is that it is not neccesary to connect it.

[Geo]

Behkli, can you tell me who is the capacity of 3 yellow capacitors beside the toroid coil??

[RIMES]

Originally Posted by Geo

Behkli, can you tell me who is the capacity of 3 yellow capacitors beside the toroid coil??

Hi,
this device has been short circuited (poles inverted stack).
For yellow capacitors, the figures, I believe, are 103, 561 and 561 (very small).

[Geo]

Thanks for info about capacitors.
What do you mean with "device has been short circuited (poles inverted stack)", how poles inverted???

[Qiaozhi]

Originally Posted by Geo

Thanks for info about capacitors.
What do you mean with "device has been short circuited (poles inverted stack)", how poles inverted???

I think he means that the batteries were inserted the wrong way round.

[Geo]

Originally Posted by Qiaozhi

I think he means that the batteries were inserted the wrong way round.

Yes, but in who state is now, did he replace the voltage regulator or not.
From the voltage that read at U5 i believe that there is not any problem.