cyberas

Hello!
I have got original Axim Auto Power Adapter.
Details:
MODEL: IC-DX3-GPS
INPUT: 10V-24V 1.2A
OUTPUT: 5V 2A

It is broken now - I have to change among other things the R2 resistor, but I don't know what is the value of this resistor, because it is fired.
Could anybody help me?
Maybe somebody has the same adapter and can open the cover and read the resistor R2 value or measure it, please?
You can see that adapter inside on http://republika.pl/cyberas/.
On the Picture 1 you can see this R2 resistor.

By the way I have another question yet (please look at the Picture 2 on http://republika.pl/cyberas/):
Why there are three cables (red, yellow and black) on the output?
red is +
black is -
and yellow is connected with red but this connection is inside the output cable.
The yellow cable is connected inside the adapter to the feedback input of LM2576.
How does it work?

utmatt20

For what it's worth, I put my meter across it and read 10.3 Ohms.

cyberas

Originally Posted by utmatt20

For what it's worth, I put my meter across it and read 10.3 Ohms.

Thank you very much utmatt20!
It is very low value. I don't know what it is worth - I try to repair my power adapter.
Just o be sure: It was exactly the same model (the same symbol) as mine adapter? The same appearance inside?

utmatt20

Originally Posted by cyberas

Thank you very much utmatt20! It is very low value. I don't know what it is worth - I try to repair my power adapter. Just o be sure: It was exactly the same model (the same symbol) as mine adapter? The same appearance inside?

Yes, identical. IC-DX3-GPS it came with my Dell gps.