修理を始めるには コミュニティ ストア
リペアコミュニティに参加 - アカウントの作成

Repair guides and support for your LG TV.

20回答 すべてを表示

オプション

Why won't my main board replacement work?

I ordered a new main board from Encompass to repair my snowy screen issue and upon installation the screen will not power up. The power light goes from constant red to off like normal but the screen will not power on. The initial symptom experienced from the old board was a static/snowy screen with functional sound and sub titles. I figured from research that the main board was bad so I order a replacement (EBT64049102). See attached photos and please advise if there is a step during the replacement process I a missing. This television is a 65UF6450UA LG 65" Smart TV.

Thanks,

Daniel

Block Image
Block Image
この質問に回答する 同じ問題があります

この質問は役に立ちましたか？

はい いいえ
スコア 1
2 件のコメント

i have a 40 inch LG smart tv lost picture & sound . I replaced the main board still nothing the power light is on the lg logo pops up for a second and then blank screen. Any suggestions ? thanks

さんによる

My main power supply board not working

さんによる

コメントを追加

1 件の回答

フィルタ：
参考になった順 新しい順 古い順
最も参考になった回答

オプション

'''++@rocknfire++'''

mo other steps involved. This should have been a straightforward replacement. Looks like it wasn’t the main board. Of course, there is always the possibility that you received a bad part. Double check all of your connections and triple check the wiring from the power board to the main board. You will have to start of by checking to see if you have power to the stby on the connector. You also want to check for power on the T-con board fuse. Multimeter to something like 50V DC red to either end of the fuse and black to ground. Let us know what that voltage is with the TV turned on of course.

Post some images of all of your boards etc. Tell us what happens when you reconnect the old main board.

このアンサーは役に立ちましたか？

はい いいえ
スコア 1

2 件のコメント:

When I reconnect the main board, the screen illuminates and the television will turn on normally. It is still displaying a static snowy screen though. Maybe it is just a bad part?

さんによる

@rocknfire the old main board or the new main board? If the old one shows the same results as before and the new board does not show you anything, I'd return the new board. It is important to remember that some boards had many revisions and those can cause incompatibilities.

さんによる

コメントを追加

回答を追加する

Daniel S さん、ありがとうございました！
統計データ:

過去 24時間: 0

過去 7 日: 2

過去 30 日: 14

今までの合計 4,062