Reparing a "La Crosse BC-700"

andrixnet · Jul 30, 2013

I have a BC-700 which has suffered a severe shock when my brother accidentally connected it to another power supply with identical connector (for another charger), which was rated 12V instead of the 3V used by the BC-700.

Of course, it is now quite dead. However I am looking to revive it. If I am lucky, only some of the input path suffered catastrophic failure and I may have a chance.

PCB is marked G216D1V09.

I have looked at the PCB and identified 2 SMD components on the input path, beyond which there is no sign of input voltage.
A 3 pin component marked H2A and a 5 pin component marked L21R.
So far I haven't been able to identify these components, but without much luck.

Has anyone been able to repair one after a similar failure?

bl3it · Sep 13, 2013

andrixnet said:
I have a BC-700 which has suffered a severe shock when my brother accidentally connected it to another power supply with identical connector (for another charger), which was rated 12V instead of the 3V used by the BC-700.

Of course, it is now quite dead. However I am looking to revive it. If I am lucky, only some of the input path suffered catastrophic failure and I may have a chance.

PCB is marked G216D1V09.

I have looked at the PCB and identified 2 SMD components on the input path, beyond which there is no sign of input voltage.
A 3 pin component marked H2A and a 5 pin component marked L21R.
So far I haven't been able to identify these components, but without much luck.

Has anyone been able to repair one after a similar failure?

I did the same thing on a pcb marked ending V06. Only one component blew, the one next to the power connector which i cannot identify, perhaps someone else knows what it is so i can replace it? ?

Regards

stonek · Mar 8, 2016

Hi, I have the same problem (12V instead od 3V). Did you manage to fix it?

ChrisGarrett · Mar 8, 2016

stonek said:
Hi, I have the same problem (12V instead od 3V). Did you manage to fix it?

Didn't watch it, but this might help:

https://www.youtube.com/watch?v=ibkfh6HAvac

Seems from the comments, that he might have fried the processor, but I don't know.

Chris

ShineOnYouCrazyDiamond · Mar 8, 2016

Happened to me a year or so back as well. Accepted the loss and bought a new one. Even if you fix one seemingly bad component you'll never know for sure what other damage you did upstream.

ChrisGarrett · Mar 8, 2016

ShineOnYouCrazyDiamond said:
Happened to me a year or so back as well. Accepted the loss and bought a new one. Even if you fix one seemingly bad component you'll never know for sure what other damage you did upstream.

Funny, but I did the same thing one night, but with my Maha C9000, when I grabbed the 14.4v WW for my Rayovac IC3 15 min. charger. It worked fine on discharge, but when I started to 'charge,' it would reboot itself. Since it was fairly new, I thought it was defective.

Once I realized that I had the wrong PSU, I got out some yellow model paint and painted the proper names on each wall wart and 12v car adapters.

The C9000 has been working fine for 4+ years, so I didn't kill it.

Chris

TinderBox (UK) · Mar 8, 2016

My BC-900 clone is blue and gray (techno line ic8800) and the charger is blue and gray, all my other psu are black so it`s a lot harder for me to make that mistake.

John.

1DaveN · Mar 8, 2016

I frequently promise myself that I'll immediately label the power brick every time I open a new product. I've been making this promise for ages now, and I hope I eventually keep it. (And I'm trying to standardize on USB-powered devices, but that's not always easy either).

RI Chevy · Mar 8, 2016

I just keep all of mine connected and place them in a larger storage bin. This way I don't mix them up.

ShineOnYouCrazyDiamond · Mar 8, 2016

RI Chevy said:
I just keep all of mine connected and place them in a larger storage bin. This way I don't mix them up.

Trust me. I was doing the same thing. It happened when I was cleaning my desk and re-doing the wiring. I didn't realize that two of the wall-warts had the same plug. I think I plugged in either a 9v or a 12v adapter. All I know is it went on, off, and that was that.

RI Chevy · Mar 8, 2016

I hear ya. I am going to label all of mine now after reading. Lol

ShineOnYouCrazyDiamond · Mar 8, 2016

ditto

CuriousOne · Mar 9, 2016

Post the photos of PCB from the both sides, then we can say more.

CuriousOne · Mar 9, 2016

Post the photos of PCB from the both sides, then we can say more.

TinderBox (UK) · Mar 16, 2016

Is the charger below £20 a rebranded "everActive NC 1000" as it`s hard to find at the moment and they are £40+ for those who don't need li-ion support.

https://www.7dayshop.com/products/7...y-charger-for-aa-and-aaa-batteries-WH2-DS-127

John.

Lynx_Arc · Mar 16, 2016

andrixnet said:
I have a BC-700 which has suffered a severe shock when my brother accidentally connected it to another power supply with identical connector (for another charger), which was rated 12V instead of the 3V used by the BC-700.

Of course, it is now quite dead. However I am looking to revive it. If I am lucky, only some of the input path suffered catastrophic failure and I may have a chance.

PCB is marked G216D1V09.

I have looked at the PCB and identified 2 SMD components on the input path, beyond which there is no sign of input voltage.
A 3 pin component marked H2A and a 5 pin component marked L21R.
So far I haven't been able to identify these components, but without much luck.

Has anyone been able to repair one after a similar failure?

The L21R is a 21 ohm resistor and the H2A is a transistor I think NPN but not sure, however it is possible that the "A" could be a "4" and the "L" could be a "1" check closely to make sure as I have made that mistake before. If you can, try and test the resistor and see if you get a measurement it is possible if it is not fried that it is ok, I'm guessing the transistor got toasted though.

MidnightDistortions · Mar 17, 2016

Labeling the cords at both ends are ideal. I have an identical cord for my C9000 charger and an external hard drive enclosure. Best not to get them mixed up by labeling them.

TinderBox (UK) · Mar 17, 2016

Get one of those dynamo type printers, they are not that expensive.

John.

TinderBox (UK) · Mar 28, 2016

24hrs only get 10% of 7dayshop products with code EASTER10

4 AA or AAA usb charger with lcd for £7.99

https://www.7dayshop.com/products/7...h-mains-usb-car-charge-options-WH2-7DAY600LCD

TinderBox (UK) said:
Is the charger below £20 a rebranded "everActive NC 1000" as it`s hard to find at the moment and they are £40+ for those who don't need li-ion support.

https://www.7dayshop.com/products/7...y-charger-for-aa-and-aaa-batteries-WH2-DS-127

John.

mariusz002 · Apr 13, 2018

The entry is not serious.
During charging, the battery has overheated. Thermal protection did not work. The hot battery melted the bc-900 charger housing. Is it possible to buy a small housing for this device. in a la croose company or in another. For aesthetic reasons. I did not notice any damage on the PCB G216D1V09 board

Reparing a "La Crosse BC-700"

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