PART NUMBER: A2129709A
BOARD NUMBERS: A2129704B, A2129704A, 1-980-833-11, 173612611
MODEL NUMBERS: XBR85X850D
PART TYPE: Main Board
TV TYPE AND SIZE: LED, 85"
MFR PART NUMBER: Sony A2129709A or A-2129-709-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 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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