Hey there!
I just fixed my samsung 245B just like you fixed yours!
and your photos, featuring the 5w resistors, convinced me to do the same!
So I want to thank you.
Do you find that these new resistors need some extra cooling?
zx23rr
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Last Activity: 10-18-2016, 04:17 PM
Joined: 01-15-2011
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Re: Samsung Syncmaster 245BW
Bsua, - good call! Thank you. I'll play with that and see what I can come up with. Cheers -
Re: Samsung Syncmaster 225BW
I have two of these beauties. I have repaired both of them. I read through this thread completely and noted that no one mentioned that there are two different cap set ups depending of the year the monitor was manufactured. One was a Dec 07 and the other Apr 06.
The two 225BW monitors had different back steel shells, and more importantly a changed ratings for caps on the two middle ones.
The older screen had two 680uF x 25 volt caps. The newer one has two 330uf x 25 volt.
But when I started the project I...Leave a comment:
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Re: Samsung Syncmaster 245BW
Just a thought, those three resistors are in series. IF you only replace one and it is not of the same resistance, will there not be a higher current going to be realized by the remaining two possibly leading to a future failure. RB805 is the first in the series and seems to be the one that is failing. In my case they looked to have warmed up a little!
On the fan/cooling side of things, where on the board could the fan be wired in? Lets say a small 40mm unit.
I would assume they are 5 volt.Leave a comment:
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Re: Samsung Syncmaster 245BW
Here are some before and afters..... RB805, RB806, & RB807 replaced
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Re: Samsung Syncmaster 245BW
As a side note, if you go and replace RB805, I would highly recommend changing out RB806 and RB807 as well. Same resistors and all seem to be subjected to a lot of heat or just "run" hot.
I was having trouble finding the same "size" resistor in 68 ohm without having to wait a long time (the weekend). So as mentioned before, I replaced them with TRW 68 ohm 5
watt variety. There is amazingly lots of room in that part of the housing to have the resistor body protrude out/away from the board to the side. ...Leave a comment:
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Re: Samsung Syncmaster 245BW
hi newbie1,
That is how I think I finally managed to unlock the OSD, but not out of a procedure more dumb luck.
I am enjoying the screen very much. Upgraded from a 19" CRT. I am enjoying the real estate.
Like most things, heat seems to be the biggest threat to electronics. I am trying to figure away of getting air to move around and near the power supply area. Anyone try this or have a thought on it!Leave a comment:
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Re: Samsung Syncmaster 245BW
Update - first I would like to thank everyone again. I found the issue with the color.
It was something simple - it was the video cable - NFG. :-) That was simple.
So if your monitor is not working, look at RB805 at least and the ones beside it.
I could only find 68 ohms 5 watts. There is fortunately lots of room. Still need to get the OSD unlocked and fighting with that!
CheersLeave a comment:
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Re: Samsung Syncmaster 245BW
That would be easy. At the risk of sounding well you know, where/how is the reset on the monitor accomplished? I tried to reset and adjust in the OSD, but it seems like I have locked or as it says, Brightness "Not Available"
Again, thank you in advance.Leave a comment:
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Re: Samsung Syncmaster 245BW
Hello, A quick thank you for your great information. I replaced all three resistors RB805, RB806, and RB807. Monitor is now back to life, but I have no red colors.
Any ideas as to the direction to go in?
Sumsung 245BW Dec 07 build date.
Thank you in advance.Leave a comment:
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