samsung s3510

[scooby01]

Hi I have a customers samsung s3510 how has been using a universal maplins charger and has now no power. Now with an original charger their is a short on the mobo. I have tried 2 Chargers and the same things happen the led blinks on the charger and you can hear a pinking noise in the charger. It obviously has a short on the motherboard but I cannot find it.
It has the power ic circuit near the battery, which is at the other end on the pcb and 1 power regulator gets red hot. I have changed that but still have th e same problem. Any help please.

[scooby01]

Re: samsung s3510

Hi I have a customers samsung s3510 how has been using a universal maplins charger and has now no power. Now with an original charger their is a short on the mobo. I have tried 2 Chargers and the same things happen the led blinks on the charger and you can hear a pinking noise in the charger. It obviously has a short on the motherboard but I cannot find it.
It has the power ic circuit near the battery, which is at the other end on the pcb and 1 power regulator gets red hot. I have changed that but still have th e same problem. Any help please.

What can test and how.

[b700029]

Re: samsung s3510

Post some pictures.

[scooby01]

Re: samsung s3510

There is a short and ic get very hot. marked.

[dycc]

Re: samsung s3510

the big cap is the problem below the processor on the other side of the board.

you must replace it with 4 tantalum cap ( 2x470 ,2x330)

i do not speak english very well . i am french man

[dycc]

Re: samsung s3510

the big cap (nec tokin oe687)

[scooby01]

Re: samsung s3510

can you point the 4 x small to with edit.
I can see the tokin oe687 but cannot find where to buy it. any idea i am in th UK
Thank you.

[dycc]

Re: samsung s3510

do something like that(attached file) . hope this help

[dycc]

Re: samsung s3510

you can find these caps on dead board if it is not possible for you to buy it

[dycc]

Re: samsung s3510

arrangement with the capacitor:

(4x330e)or (4x330d) or (2x470e , 2x330e) or (2x470d , 2x330d) or (4x220e) or (4x220d)

e=2.5v d=4v you can also mix voltage values

[scooby01]

Re: samsung s3510

I Get it now. In other words do not replace with nec tokin oe687, but use the 4 seperate ones in stead. Thanks Will give it ago. Got hundreds of old mobos. laying around,.

[scooby01]

Re: samsung s3510

Hi I have completed the process by removing the oe687 and using 4 x 220d's but I am still get short circuit causing the chargers to blink. I am sure it was caused by a universal charger have you any other things ican try.
Thanks

[Sparks88]

Re: samsung s3510

check around power jack socket for shorts

[scooby01]

Re: samsung s3510

There is nothing near the dc socket. It has 1 tiny capasitor then just tracking all the way to the battery/ power area i the other end of the board.