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現在のバージョン作成者: jayeff ,

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Hi @jostewcrew ,
I would try a different tack.
You may have 2 problems
1. why is there no standby light when the power is connected?
There should be approx 8V on the standby lead from the power board to the mainboard. Is this correct? If it reads 13V then the power board thinks that the TV is On and is providing full power
2. Agree that with Samsung LED TV when the mainboard is disconnected from the power board then backlights should turn on if backlights connected and power on the powerboard.
So assuming that the backlights are connected to the powerboard and this I don't know if it is the case with your model or not, then there is an open between the backlights and the power board.
Reading 300V is indicative of a "no load" output on the LED driver. If the LED circuit was there you would most probably read 220V.
just some thoughts
=== Update (11/14/2019) ===
Hi @jostewcrew ,
Here’s a link to the [http://docplayer.net/132186627-Un65j6200afxza-fast-track-troubleshooting-manual-rev-6-24-15rcs-option-byte-tables-version-ah01-ih02-support-information-service-bulletins-tips.html|Un65j6200afxza-troubleshooting-manual].
-It gives the ''Power Up sequence testing'' which should help to narrow down the problem further, at least perhaps to a board.
+It gives the ''Power Up sequence testing'' which should help to narrow down the problem further, at least to a board perhaps.

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open

編集者: jayeff ,

テキスト:

Hi @jostewcrew ,
I would try a different tack.
You may have 2 problems
1. why is there no standby light when the power is connected?
There should be approx 8V on the standby lead from the power board to the mainboard. Is this correct? If it reads 13V then the power board thinks that the TV is On and is providing full power
2. Agree that with Samsung LED TV when the mainboard is disconnected from the power board then backlights should turn on if backlights connected and power on the powerboard.
So assuming that the backlights are connected to the powerboard and this I don't know if it is the case with your model or not, then there is an open between the backlights and the power board.
Reading 300V is indicative of a "no load" output on the LED driver. If the LED circuit was there you would most probably read 220V.
just some thoughts
+
+=== Update (11/14/2019) ===
+Hi @jostewcrew ,
+
+Here’s a link to the [http://docplayer.net/132186627-Un65j6200afxza-fast-track-troubleshooting-manual-rev-6-24-15rcs-option-byte-tables-version-ah01-ih02-support-information-service-bulletins-tips.html|Un65j6200afxza-troubleshooting-manual].
+
+It gives the ''Power Up sequence testing'' which should help to narrow down the problem further, at least perhaps to a board.

ステータス:

open

オリジナル投稿者: jayeff ,

テキスト:

Hi @jostewcrew ,

I would try a different tack.

You may have 2 problems

1. why is there no standby light  when the power is connected?

There should be approx 8V on the standby lead from the power board to the mainboard. Is this correct? If it reads 13V then the power board thinks that the TV is On and is providing full power

2. Agree that with Samsung LED TV when the mainboard is disconnected from the power board then backlights should turn on if backlights connected and power on the powerboard.

So assuming that the backlights are connected to the powerboard and this I don't know if it is the case with your model or not, then there is an open between the backlights and the power board.

Reading 300V is indicative of a "no load" output on the LED driver. If the LED circuit was there you would most probably read 220V.

just some thoughts

ステータス:

open