Just replaced the xmain ymain, psu(which I think was fine to begin with but just in case ) and ybuff. I also replaced the fried ribbon cable. Gonna try and boot up now and see what happens
stellamusik
Member
Last Activity: 07-29-2014, 10:19 AM
Joined: 05-18-2014
Location: montreal, quebec
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Re: Samsung PN42C430A1D - Clicking
Just replaced the xmain ymain, psu(which I think was fine to begin with but just in case ) and ybuff. I also replaced the fried ribbon cable. Gonna try and boot up now and see what happens
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Re: Samsung PN42C430A1D - Clicking
I did a visual inspection and test each fuse on the xbuffer boards. All seemed to be in working order. No burn marks on the board either. I did notice a ribbon cable that has been burned up from my last attempt to fix the tv. This cable went from the control board (the one with the LED) to the xmain board. Im currently looking into acquiring a new cable.Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
Im afraid i'm not inspecting it properly. I can post a picture later of the buffer and you could point out what i should look at?Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
I just recieved the new parts, y buffer, y main, and x main. Should i have also replaced the x buffer? I also got a new psu board just in case.Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
Ive also noticed its the same transistor thats shorting. The RJH30E2.Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
Is it possible the load of the mains and buffers caused the boards to fail due to the lack of control provided by the shorted transistors?Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
Hey flocko, i tested all the boards before i plugged them in and they where all good. The only issue that i noticed before hand was the shorted transistors in the psu bored i mentioned above, but the voltages remained steady when i tested that board on its own , so i assumed it was ok.Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
Correction, ymain has pretty much everything shorted.Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
Just my luck. I plug in everything , turned on , no video though. Then, I start seeing smoke from the center , in guessing the psu board. Now the new ymain has a diode shorted
. Xmain is ok. I have no way of checking the ybuffer
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Re: Samsung PN42C430A1D - Clicking
Should i then unhook everything from the board and test the node voltages again, if they match the specified amount, assume the psu board is ok?Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
I tested them the same way i tested the other boards. i unplugged everything, and tested the nodes using the multimeter's diode mode. Is it possible im doing it incorrectly?
ThanksLeave a comment:
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Re: Samsung PN42C430A1D - Clicking
I'm going to go ahead and guess that would be a yes :PLeave a comment:
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Re: Samsung PN42C430A1D - Clicking
I tested the psu board transistors /diodes for kicks and found some more shorts. Should I replace this board as well ?Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
Perfect, will do thanksLeave a comment:
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Re: Samsung PN42C430A1D - Clicking
Noob question, but which ybuffer board is the correct one on shopjimmy lol
And will do flocko!Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
Also, now that I have three boards with fried transistors , is their anything I can do with these parts. Capkid, you mentioned that they are difficult to repair ?Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
Well this sucks, I followed the instructions you posted on the similar thread (really simple instructions so thank you) and I found shorts on both the ymain, the xmain and the brand new ymain I bought. Is there a way for to test the ybuffer and xbuffer ? The xbuffer only seams to have a capacitor on it.
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Re: Samsung PN42C430A1D - Clicking
So i tested with everything except for the ybuffer and received the same results. I also check the voltages and they were all at 0v (vs,va etc). The blinking with everything attached starts with two blinks then turns off completely but the standby light is still on. It follows the same pattern that flocko mentioned. Capkid, Is their anyway for me to test each board separately?Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
Il check this evening when get home!Leave a comment:
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Re: Samsung PN42C430A1D - Clicking
After plugging in the ymain and ybuffer, and unplugging the xmain (See image below), I received the same results.
I've posted a video showing what happens.
[URL=http://tinypic.com/r/207b594/8]View My Video[/URL]
I apologize for the quality, my phone's camera is not the best.
Thanks again for the help!Re: Samsung PN42C430A1D - Clicking
After plugging in the ymain and ybuffer, and unplugging the xmain (See image below), I received the same results.
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