DESCRIPTION

PRODUCT SPECIFICATIONS

• Part Type: Main Board

• Part Number: A-5056-903-A

• MFR Part Number 1: A5056853A

• Board Number(s): A5056853A

• Panel Sticker Number: (Verify against your original panel)

COMPATIBLE MODELS

• Sony X90L Series: XR-55X90L, XR-65X90L, XR-75X90L, XR-85X90L, XR-98X90L

• Sony X90CL Series: XR-55X90CL, XR-65X90CL, XR-75X90CL, XR-85X90CL

REPAIR SYMPTOMS FIXED

The Sony BM5STY Main Board is the central processing unit for your television. Replacing this board typically resolves:

• Power Issues: TV will not turn on or has no power.

• Video/Audio: No picture or no sound despite the backlight being active.

• Connectivity: Failed HDMI ports or lost Wi-Fi/Smart TV functionality.

• Error Codes: Fixed Sony TV 3 red blinks error.

FREQUENTLY ASKED QUESTIONS (FAQ)

Q: Does this Sony main board require a software update? A: Yes. After installing the replacement board, a software update is typically required to pair it with your specific LCD panel.

Q: Where can I find the firmware for my TV? A: You can download the latest firmware by entering your model number at Esupport.Sony.com.

Q: How do I know if the A-5056-903-A is the correct part for my TV? A: Match the Part Number or MFR Part Number from your original board to ensure compatibility.