Sony soundbar SA-CT260H no power

[alderick]

Hello everyone,

I have this sony soundbar which suddently stop working.
I check the powersupply, it's working.
On the mainboard there is 12V and 5V powersupplys, there are fine too.
The 3.3V standby is shorted, I found that the microcontroller nuvoton m0516lbn are in short, I remove it and then the board is not shorted anymore.
The 3.3V regulator G9091 is dead, no outpout anymore.

The question is, if I repalce those 2 component, will it works again?

Since the nuvoton had 32BK memory, I guess there is a software or something inside, so if I replace it, maybe it will not work?

Thanks for reading

Regards

(I have schematics if you want)

[Andrew F. Ali]

Re: Sony soundbar SA-CT260H no power

The only way to really know is to replace these two components if you can locate them and give it a try. There may be a flash memory on the Main Bd to reload the software.

[alderick]

Re: Sony soundbar SA-CT260H no power

Thank you for your answer, there is a 32Mbit flash on the board, so it's possible yes.
I order these two components from china, I'll be back to tell when the package will be delivred.

[Andrew F. Ali]

Re: Sony soundbar SA-CT260H no power

Thank you.

[alderick]

Re: Sony soundbar SA-CT260H no power

Hello,

Sorry for not comming back sooner, chinese delivery are slow then I was occuped with something else.
I replaced both chip, 3.3V is back, but i find out than on more chip is shorted, the HDMI thing, I gave up for now. Maybe i'll try later.

Thanks for everything anyway.

[tmhobadcap]

Re: Sony soundbar SA-CT260H no power

I have the same sound bar with the same problem. If you fixed it, please advise the details.