A1971792A, A-1971-792-A Sony Main Board, A1957649A, 1-889-123-21, 173453921, KDL-65W850A, KDL-65S990A

A1971792A, A-1971-792-A Sony Main Board, A1957649A, 1-889-123-21, 173453921, KDL-65W850A, KDL-65S990APART NUMBER: A1971792A BOARD NUMBERS: A1957649A, 1 889 123 21, 173453921 MODEL NUMBERS: KDL 65W850A, KDL 65S990A PART TYPE: Main Board TV TYPE AND SIZE: LED, 65" MFR PART NUMBER: Sony A1971792A or A 1971 792 A Disclaimer: When replacing the main board or the t con board in a Sony television, a firmware update is often required. This update must be sourced by the customer and uploaded to the blank 2 GB complimentary thumb drive that is included in your

Disclaimer: When replacing the main board or the t-con board in a Sony television, a firmware update is often required. This update must be sourced by the customer and uploaded to the blank 2 GB complimentary thumb drive that is included in your order. Typically, the firmware update is downloaded from Sony's website however they have discontinued the downloadable firmware update for several models. It is the customer's responsibility to ensure the update can be sourced before purchasing the part. We have step-by-step instructions for the update process and an in-house Sony expert who can walk you through every step of the process.*

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