Re: Samsung PN51D550 Clicking and blinking led
Are your voltages registering correctly?
Diyer
Member
Last Activity: 09-04-2014, 07:46 PM
Joined: 06-19-2014
Location: Michgan
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Re: Samsung PN51D550 Clicking and blinking led
Ok so everything seems to check out on the y-main board. So I took out the X-main and test the transistors and found a couple giving me a short reading and <20ohms. So I desoldered the transistor and it still tested short on all legs and <20ohms. Its a RJP30H1 transistor and I've also noticed all the transistors on the same side of the board are testing the same way in circuit (short and low ohms). Please refer to the pic the transistors with a red mark are testing short in circuit and low ohms. The yellow transistors are model...Leave a comment:
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Re: Samsung PN51D550 Clicking and blinking led
Tom66 what setting should I have my DMM on and what values I'm I looking for?Leave a comment:
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Re: Samsung PN51D550 Clicking and blinking led
Ok so I woke up this morning and did some more research on how to test an IGBT transistor and found out that my transistors are OK. Any suggestions on what to test next.
ThanksLeave a comment:
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Re: Samsung PN51D550 Clicking and blinking led
Ok so I removed the y-main board and removed 2 of the transistors on the board for testing upon removal I found that I can only get a reading from touching my negative lead to the collector and the positive lead to the emitter everything else gave me an O.F reading. Based on what I've read online I'm guessing this means I have a bad transistor (Fairchild - FGPF4536)?...Leave a comment:
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Re: Samsung PN51D550 Clicking and blinking led
Hey guys,
I removed the y-bufferboard and tested the resistance between the points. 150kOhms so I guess that rules out the y-buffer being bad. Can you tell me if I have to remove transistors from being in circuit to test them or can I do it while in circuit.Leave a comment:
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Re: Samsung PN51D550 Clicking and blinking led
Hi Tom66,
Can I check the transistors while they are on circuit or do I have to remove them to get a true reading?
Martino with the only the y-main attached to the power supply I get a 0-ohms but with everything connected like normal I see its ranging from 600k - 7M Ohms.Leave a comment:
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Re: Samsung PN51D550 Clicking and blinking led
Vola!...Leave a comment:
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Re: Samsung PN51D550 Clicking and blinking led
I'm confused why when the Y-main is plugged in but the x-main cable and ribbons are removed I have no voltage till I also remove the Y-main ribbon. Can I conclude that the x-main is bad?Leave a comment:
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Samsung PN51D550 Clicking and blinking led
Hello, I have a Samsung PN51D550C1FXZA which has a start up clicking issue. The red LED up front will blink twice 5x then nothing. I've tested some components on the boards and my findings are below. Any help that can lead me fixing this issue via replacing components or boards would be greatly appreciated.
[COLOR="Red"]All boards connected. (tv clicks and led blinks)
[/COLOR]No PS-Vs, PS-Va, Y-Vs, X-Vs, VSCAN or Ve reading
[COLOR="Red"]All boards connected but all ribbons removed from the main board. (tv clicks and led blinks)[/COLOR]... -
Re: New Members - please post your introductions here
Hello,
My name is Sam and I'm from Michigan. I just discovered this board but wanted to become a member due to the talent on this forum. I want to thank everyone in advance for sharing their talents!Leave a comment:
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