SlotForum banner

Trials & Tribulations of Chip Repairs & Upgrades

65015 Views 347 Replies 51 Participants Last post by  Ade
An F1 DPR chip arrived on my doorstep to be fixed. It looked perfectly OK but would not run when connected to a chassis and tested on a powerbase. After a check of the components, I found that three of the four diodes were not working at all so I replaced them with 1A Schottkys .........


All still looking OK ....... time to test my handy work .......


Reassembled back onto the testbed, I pulled the throttle back and woomph!
... very bright flames & tons of acrid smoke.

As you can see, the dual MOSFETs, top left, has decided to expire. It is a dual MOSFET bereft of any magical smoke, it is an ex-MOSFET.
I wonder if Farnell can help me out in the morning? ......
See less See more
  • Like
Reactions: 1
1 - 4 of 348 Posts
So what goes on theses chips when u have short in the motor? have at least 5 chips that dont work because it took me two trys before I found that the motor was bad or the wire was touching the metal part of the motor. two dprs, two salons and a slot it 15 chip. nothing sucks more than pulingl a new chip out the package. installing in the car and poof nothing
. waiting to hear back from gmyers2442 to see if he still repairing chips.
See less See more
stock yellow can in the slot it. my fault on that one, had both the leads touching. the others all stock 1800rpm scaly motors. no smoke just a little stutter if that and nothing.
I really need to box my blown chips up and send them in wat do you think the going rate for shipping would be from washington state to your location?
ok I have more than a couple. let me round them up and give you a good count. pm will be coming your way shortly
1 - 4 of 348 Posts