Comments on: No Power In Samsung LCD TV Repaired

By: Tito rivera

Tito rivera — Mon, 01 Apr 2019 20:27:42 +0000

Good help, my sharp tv had the same problem , I change IC,resistos and now power up again . But now works for 2 minutes and poweroff with 2 blinking power led in red.
Now I need some help!

Thanks!

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By: Chris

Chris — Wed, 28 Dec 2016 22:43:01 +0000

Where can I get the exact same parts you used?

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By: admin

admin — Thu, 08 Jan 2015 01:16:05 +0000

In reply to Josué.

Hi Josue,

You are welcome!

Jestine

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By: Josué

Josué — Wed, 07 Jan 2015 17:08:23 +0000

Thanks researching thought and I appreciate people like you.

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By: Fernando Frias

Fernando Frias — Sat, 13 Dec 2014 10:00:11 +0000

In reply to Amir Mukhtar.

Thanks Mr. Amir sorry for delayed
replay I hope it's clear for you all the details of troubleshoot

Thank you,

Fernando

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By: Fernando Frias

Fernando Frias — Sat, 13 Dec 2014 09:52:05 +0000

In reply to Pete Singh.

Hi Mr.Pete thanks your question!but first of all I am so sorry for delayed answer because I am not open my email long time from last October end of the month.My company we had a couple of project so I don't have time to open my personal email because I am using my outlook email in the company,so about your question regarding to pin point the problem of the ic actually I am using only my analog tester when I started to trouble shoot from primary to secondary supply I found the fuseble resistor is open I trace the connection of that resistor it's going down to HV of the regulator that I've mention above although this IC is having 7 pins but only 3 pins are working from pin 1 there is ceramic connected to pin 8 and pin 2,3,7 and 8 are connected to the negative ground of mother Capacitor and pin 5 is connected to primary transformer and pin 4 is connected to optocoupler for trigger the power so that means there is diode reading between the ground and pin 5 when I am using my tester to check both pins are shorted so i conclude that's why the fuseble resistor is open because of this shorted since I don't have the same part number I replaced the higher one number of ic and I never found another component there is problem so I hope it's clear to you how can I pin point the problem of the TV.

Thanks

Fernando

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By: Pete Singh

Pete Singh — Mon, 08 Dec 2014 17:27:37 +0000

Hi Fernando
What component you tested to pin point out that IC was bad and it needs replacement?

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By: lester

lester — Sat, 08 Nov 2014 05:37:02 +0000

In reply to jasfer.

check the led driver board

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By: lester

lester — Sat, 08 Nov 2014 05:34:52 +0000

In reply to daniel osiobe.

google your part number,click on dealer spec sheet page then look at similar part numbers for an equal or higher tolerant part, many electronic part suppliers out there.

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By: Amir Mukhtar

Amir Mukhtar — Thu, 06 Nov 2014 07:54:47 +0000

Thank You Mr. Fernando Frias

Good Article and Please Keep more sharing your Experiences to Learn Repair and its Solutions.

thanks you
Amir Mukhtar Ashrafi

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