Toshiba 32av713b1

[vinceroger69]

Re: Toshiba 32av713b1

still not working, the fault seems to be occurring more often now, from cold fault there, warmed scaler ic u401 (mt5363efcg) and set powered up.
Removed heatsink and just reflowed the bga chip, resoldered heatsink back and set back on test.
If this don't work I think It will be a scrapper....

are replacement boards available cheap?

[ozy]

Re: Toshiba 32av713b1

No cant find any in stock anyware from any of the usual sources.
Hopefully reflowing scaler chip has sorted it, been on good few hours now.

[ozy]

Re: Toshiba 32av713b1

well after reflowing scaler ic set has been running fine all night. as the heatsink on the scaler is soldered through the board applying pressure on the chip does not help diagnosing the fault. back is now back on the set will give it a little longer on test but looks like its ok.

[vinceroger69]

Re: Toshiba 32av713b1

For new members maybe if you get a minute can you upload a picture and point out which chip you have reflowed etc as new members may not know which is the scaler ic. many thanks and hope you have now managed to sort your tvs issue out a few days soak testing should now tell either way.

[ozy]

Re: Toshiba 32av713b1

still working fine so here's the pic as requested.

[dick_barton]

Re: Toshiba 32av713b1

Can I ask what process did you use to reflow? Hot air gun, kitchen oven, IR station etc.
Thanks

[ozy]

Re: Toshiba 32av713b1

couldn't be bothered to set my infrared station up, that's packed away on me shelf gathering dust.
just used preheater and hot air station with a thermocouple tapped to the board.

[dick_barton]

Re: Toshiba 32av713b1

Thanks for your reply. Appreciated