Re: Samsung LN46C530 No Picture

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Re: Samsung LN46C530 No Picture

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[ATTACH]88625[/ATTACH]...

Re: Samsung LN46C530 No Picture

The pin on my power board labeled SW_INV reads 0V when the TV is plugged in but off. When I turn on the TV i get 5.168V.

Here is a shot of the signals available on the connector....

Re: Samsung LN46C530 No Picture



On the power supply board it shows that SW_INVR is on the bottom row of the connector pin 2. (Connector between Main Board and Power Supply Board has 2 rows of 18 pins) Can I disconnect the cable at the power supply boards and measure that pin? I can not get at the pin when it is connected....

Re: Samsung LN46C530 No Picture



Both sides of the fuse (double red circles) measure 391.2V.

The other single red circles, the one on the left side Q1802 measures 391.2V the one on the right QI808 reads 1.8V...

Re: Samsung LN46C530 No Picture

I do not see a flash at all.

Here are pictures of my boards.




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I have a Samsung LN46C530F1FXZC that when I turn on will make the power-up sound and then the red light goes off but I do not have any picture.

My power supply board is BN4400418A. I replaced 7 caps on the power supply board on spec. (CM801, CM805, CM809, CM811, CM813, CM815, CM818, CM820)

If I remove the connector CN802 on the power supply board and plug the TV in the backlight does not turn on. (I do not see any change on the screen or notice any light showing on the back of the TV)

My problem seemed similar to this post.
[url]https://www.badcaps.net/forum/showthread.php?t=25665[/url]...

Re: Samsung LN46C530 46" LCD No Picture-Backlight or Inverter Power Issue



I have the same model that will power on and hear the power up sound. I disconnected the CM802 and the backlight does not come on. On the connector CNI802 Pin 6 and 7 I have 8.8V not 10.98V as in the above picture. My TCON board pico fuse has a K on it. I get 12.3V on both sides.

Is 8.8V on pin 6 and 7 to low?...