BUF16821: Standard values

Davide Panarelli

Part Number: BUF16821

Hi, i'm wishing to repair a TV screen, my questions are: this chips comes with a common standard gamma curve values? I ask you because i think i have bought a fake chip, when it comes without blister my balls start to turn.. if it comes with no values, all blank, is there a standard common curve suitable for most of the screens and if yes where them are available? THANKS!! (MUCH IMPORTANT FOR ME).

over 4 years ago

0 Aaron Goodson over 4 years ago

TI__Expert 6330 points

Hi,

I have notified our expert regarding this topic. Please expect a response by 7/19/19.

Thanks,

Aaron

0 Costin Cazana over 4 years ago in reply to Aaron Goodson

TI__Expert 4940 points

Hi Davide,

BUF16821 has internal EEPROM for the power on/reset DAC's output values. After power on/reset the DAC outputs can be changed by the external controller. BUF16821 default EEPROM are set to half range, this can be reprogrammed up to 16 times to match the particular display requirements.

Regards,

Costin

0 Davide Panarelli over 4 years ago in reply to Costin Cazana

Prodigy 20 points

Hi, tahbks for the answer, my tv repair is gone ahead and that chip is no more required, it was a shorte mlcc cap on its VCC..

0 Costin Cazana over 4 years ago in reply to Davide Panarelli

TI__Expert 4940 points

Hi,

Good to hear you found the damage cap

Regards,

Costin

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BUF16821: Standard values