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Vizio 39" E390i-A1 LNTVCU377XXA4 CU377XXA4 LED Driver Board

Availability: In stock
SKU
CU377XXA4
$13.93
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Please be sure that the BOARD Part Number and picture on your motherboard is EXACTLY as shown above. Do not match by TV Model. There are possibly several different boards for each model TV. This board has been pulled from a working cracked screen TV. All items are tested and guaranteed to work. This photo is STOCK meaning it may vary slightly from the one you received in color or removable cables.

Part Type: LED Driver Board
Part Usage: LED
Part Number
: LNTVCU377XXA4
Board Numbers: CU377XXA4 , LNTVCU377XXA4
: 715G5736-P01-000-004S
Know Models/Brands: Vizio , E390I-A1 LTMWNQCQ , E390I-A1 LTMWNQQP , E390I-A1 LTMXNQNP , E390I-A1 LTYWNQFQ , E390I-A1 LTYWNQQP , E390I-A1 LTYXNQNP
Part Type LED Driver Board
Part Usage LED
Part Number
LNTVCU377XXA4
Board Numbers CU377XXA4
LNTVCU377XXA4
715G5736-P01-000-004S
Know Models/Brands Vizio
E390I-A1 LTMWNQCQ
E390I-A1 LTMWNQQP
E390I-A1 LTMXNQNP
E390I-A1 LTYWNQFQ
E390I-A1 LTYWNQQP
E390I-A1 LTYXNQNP


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    NO Power Troubleshooting HELP

    We are here to help! If you're unsure of how to diagnose and troubleshoot the TV message or call us for more assistance!

    *NOTE* LG & Vizio TVs must be plugged in for 5 minutes before it will turn on*

    *For main board replacements check firmware upgrades online - We can not pre-install them*

    1. Inspect ALL Ribbons and connectors. Any tears or bad connections between boards must be replaced FIRST

    2. If you have any of these boards, it should be the first board to be replaced
    A) T-Con Board - Video Problems (No Video with standby light on, audio but no video, grainy, distorted, or color problems in screen)
    B) X or Y Buffer Board (Plasma TVs only) - Standby light is on but no power
    C) Backlight Inverter / LED Driver - No Video with standby light on

    3. Main Video Board
    - Standby light is on but no power
    - Either video or audio does not work (if no T-Con in TV. If audio but no video it is T-Con)

    4. Power Board - No power AND standby light does NOT turn on. If standby light is on try other boards above

    5. Panel - No power, distorted picture, lines, slow motion, half screen, faded in / out. Panel problems are usually not worth replacing the panel.

    Check out Tampatec's video below for help with general troubleshooting and diagnosing problems with boards

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