I think I've fried my RX66

Emilys dad

Registered
Hi all,

Just after a quick confirmation of my screw up. I've been setting up a Deltang Rx66-22 in a Bachmann Annie , I had it all working with the loco apart, I put it back together, tested it and it was dead, so I opened the loco back up again.

The battery (Fosworks 14.4V NiMH Sub C pack) is charged up, the wiring is tested and shows continuity from the battery to the chip. But the status LED doesn't light up, and the bigest chip gets rather warm, rather quickly.

I've shorted it out and fried it somehow haven't I?

Cheers

E-D
 

PhilP

G Scale, 7/8th's, Electronics
5 Jun 2013
27,713
2,864
Tamworth, Staffs.
Possibly..............

Though if it is getting warm, there is life in something..

Look hard, at the top-right of the board.. Battery and Motor wires to the left, large expanse of empty board facing upwards...

Do you see the charred remains of a 2mm square chip?

IMG_20210202_195426.jpg
 

PhilP

G Scale, 7/8th's, Electronics
5 Jun 2013
27,713
2,864
Tamworth, Staffs.
It does look to be OK.. - But obviously not, if things are getting hot.

A Supplier could test it further, and it is possible to effect a repair to some. :(:wondering::nerd: