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Magnavox 50" 50MF412B/F7 A21UBUH Digital Main CBA LCD Board Motherboard

Availability: Out of stock
SKU
A21UBUH
$49.93
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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:: Digital Main Board
Part Number:: A21UBUH
Board Number(s):: A21UBUH
: A21UB-MMA
Known Models: Magnavox , 50MF412B/F7 DS1 , 50MF412B/F8 DS1
Part Type: Digital Main Board
Part Number: A21UBUH
Board Number(s): A21UBUH
A21UB-MMA
Known Models Magnavox
50MF412B/F7 DS1
50MF412B/F8 DS1


Please note that this board only works for model 50MF412B/F7 with serial number starting with DS1 and model 50MF412B/F8 with serial number starting with DS1.

This board has been pulled from a working cracked screen TV. All items are tested and guaranteed to work.

Please be sure that the Part Number and picture on your motherboard is EXACTLY as shown above. There are possibly several different boards for each model TV. There will be a 15% restocking fee for any incorrect purchases.

Power Issues Troubleshooting

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

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.

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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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