Samsung MCLAREN REV: 1.0

[kokono]

I have this board with this serial number :
BA41-01900A
at this time ist dead
there is TPS51125 chip for 3.3v and 5v Line
i checked, dont have voltage.
also checked VREG3 and VREG5 . ist OK
checked ENTRIP1 and ENTRIP2 , ist 0.4V
i thinks "KB9010" is dead
any suggestion ?

[caspian]

Re: Samsung MCLAREN REV: 1.0

In addition to KB9010, there are a number of other circuits that can be faulty. but KB9010 is the most probable suspect. What voltage is at pin13 of TPS51125 ?

[kokono]

Re: Samsung MCLAREN REV: 1.0

In addition to KB9010, there are a number of other circuits that can be faulty. but KB9010 is the most probable suspect. What voltage is at pin13 of TPS51125 ?

Pin13 =3.0V
how i can test KB9010 ?

[mcplslg123]

Re: Samsung MCLAREN REV: 1.0

First check pin 26 or 50. Those pins are kbc power. If shorted, then remove kbc and re check for shorts on those pins. If it doesnt reach any conclusion , you need to measure which kbc pins are showing very low resistance or shorted to ground and what those pins stand for-thereby making your own conclusion.

Btw, you can remove the kbc , clean the pads and then connect adapter and re check voltages on tps 51125.

[kokono]

Re: Samsung MCLAREN REV: 1.0

First check pin 26 or 50. Those pins are kbc power. If shorted, then remove kbc and re check for shorts on those pins. If it doesnt reach any conclusion , you need to measure which kbc pins are showing very low resistance or shorted to ground and what those pins stand for-thereby making your own conclusion.

Btw, you can remove the kbc , clean the pads and then connect adapter and re check voltages on tps 51125.

i tested power supply for KBC , ist ok
in addition, Pin power supply isnt 26&50

[caspian]

Re: Samsung MCLAREN REV: 1.0

first reprogram KB9010. if there was no result, replace KB9010 if you got another one. If you are not skilled in microsoldering, do not replace it yourself.

[kokono]

Re: Samsung MCLAREN REV: 1.0

Update :
i changed KB9010 "WITHOUT" any Program
and now working perfect
..................................

[dreamer_x_x]

Re: Samsung MCLAREN REV: 1.0

In this model, io programs itself. No need to program io afterwards.