Hey guys,

So things were progressing well on my layout and I decided to do some further testing of the track in my BW area.
I drove my BR64 onto the turntable (for the first time) and suddenly my CS2 stop button goes red and all my trains go full throttle (including the BR64).
I flick all power off and wonder what the hell happened, after 20 seconds I realized what had gone wrong.
I still had my turntable connected to a separate PSU and hadn't wired it onto the same PSU as the CS2
I had bridged two separate power supplies with the CS2 in the middle. The CS2 had a waft of burnt componentry so something inside has definitely fried.

I plan to open it up tomorrow and see exactly what got burnt and if it can be replaced - thought it prudent to throw the question out here and ask if anyone else has done similar and been able to repair it?

Edited by user 06 September 2018 02:47:02(UTC)  | Reason: Not specified

I suggest you get in contact with Dion at toottoot in New Zealand. He will be in aposition to do the same repair that I did on the one Alan gave me, as described in the link in his post. His background is in electronics, like me.

Thanks for the replies guys, great to hear it can be fixed.




Sorry I meant the same feed from the CS2 track power and not direct to that PSU. I don't have anything else connected direct to that PSU.

Certainly worth the effort of trying, you have nothing to loose.

What is an PSU?

Great news, good to hear it is all working again.

yes it is the big IC, if you look at the nearest legs, the fourth one up, and several beyond it, are covered in black where the 'magic smoke' has come out.

It is a less catastrophic failure than the one I repaired in the other thread referenced in about the second or third post in this thread.

All that information was already posted in the thread linked by Alan in the first reply, including details of the damaged IC and how to replace it!
I did not feel it necessary to re-post all the same information again - or maybe you just skipped to the bottom of this thread and did not read the rest?

I will re-iterate it in this thread then. The IC is a power driver, L6206PD and readily available. Here it is at RS:
https://au.rs-online.com...otor-driver-ics/7140647/

Alans thread shows the damage much more clearly than mine as it was more severe, however I have highlighted where the damage is visible on mine:



Replacing the IC is quite difficult as you need to put a lot of heat into it to melt the solder underneath on the thermal pad.
We did not use a PCB heater like Alan, though we had a PCB oven available - we used a hot air soldering station which took 10 minutes at point blank with max temp to remove the IC!
Installing the new IC also requires a fine tip soldering iron and a steady hand for those pins. Make sure you flow solder onto the thermal pad too.

Are you able to post an image of the PCB after repair?

Cheers

Cookee

I believe the 60215 uses a different chip, or perhaps an output stage using discrete transistors. I suspect this will also be the case in the 60214 that has the isolated output stage hardware (hardware revisions above 4).

In the 60214 one channel of this chip is used for the main output and the other for the programming track output. I suspect the same is done in the 60213.