Re: Samsung UN40C5000 identify LVDS cable replacment
Aaaaand looks like I found the repair
[URL="https://www.badcaps.net/forum/showpost.php?p=299920&postcount=1"]https://www.badcaps.net/forum/showpost.php?p=299920&postcount=1[/URL]Re: Samsung UN40C5000 identify LVDS cable replacment
Aaaaand looks like I found the repair
[URL="https://www.badcaps.net/forum/showpost.php?p=299920&postcount=1"]https://www.badcaps.net/forum/showpost.php?p=299920&postcount=1[/URL]
mpadilla
Member
Last Activity: 04-29-2016, 11:07 AM
Joined: 12-19-2015
Location: Albuquerque, New Mexico
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Re: Samsung UN40C5000 identify LVDS cable replacment
Ok so I've identified the basic cause of the problem. Wasn't the LVDS cable. It was what's pictured. The last tab on the right when applying slight pressure changes the vertical lines. I don't know what it's called or the part number...YET. Just wanted to give an update that I got a little further.Leave a comment:
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Re: Samsung UN40C5000 identify LVDS cable replacment
Sorry folks haven't been around in a while as my spouse had brain surgery. Consider this one closed. At the time when i posted I was unable to locate the cable. I have had luck since then and it's on its way. Thank you again for all the help you provide!Leave a comment:
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Re: LN40A550P3F - help resurrect?
Thank you Andrew. She is doing well now. Missing hair and large scar but no cancer and improving daily!Leave a comment:
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Re: LN40A550P3F - help resurrect?
Sorry folks been away for a while as my spouse had brain surgery. Consider this one closed as I finally got around to removing the IC and one of the inductors and I don't want to go as far as repairing the pads. They were scorched in three spots on the IC and came out. Same thing with the inductor. So I'm just going to sell the board as is for someone else who is well versed in repairing down to that level.Leave a comment:
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Samsung UN40C5000 identify LVDS cable replacment
So now that my friends found out that I'm fixing tvs for my family's use they're all giving me their non-working ones sitting in their garages. Picked up this Samsung UN40C5000. It powers on with a picture on the left side but the right side is black. After reading the troubleshooting guides I moved the LVDS cable and it brought back one fourth of the blackness to vertical colored lines. Based on what I read, if ANY change occurs, then the problem is the cable. But I also read and saw pictures in the troubleshooting guide that says if you have colored vertical lines it could be the TCON board... -
Re: LN40A550P3F - help resurrect?
Found the power supply schematic. BN44-00197A. see attached....Last edited by mpadilla; 01-07-2016, 04:59 PM.Leave a comment:
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Re: LN40A550P3F - help resurrect?
That would totally explain the audio issues. I found it for $7.00 on ebay. Anywhere to find it cheaper? Now trying to identify D204 and IC101.
But then there's still the problem of the power supply. Any suggestions on testing it? My concern was the high pitched whine coming from it when it was plugged in.Last edited by mpadilla; 01-07-2016, 04:17 PM.Leave a comment:
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Re: LN40A550P3F - help resurrect?
Looks like D204 is scorched on the main board as well. I located the parts list and perusing now.Leave a comment:
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LN40A550P3F - help resurrect?
I was given this Samsung LN40A550P3F tv. I was told it had multiple problems before it "died". Sometimes not responding to power. Getting vertical colored lines in picture. Sound going in and out. I opened it up and could see visible scorch marks on IC1203 on main board BN41-00975B. I haven't been able to locate the schematics yet for the power supply or main board. I disconnected the boards and connected the power and the power supply has a high pitched whine coming from it, so I disconnected it. It is model BN44-00197A. budm helped me resurrect another tv in this series which my daughter...Last edited by mpadilla; 01-07-2016, 02:52 PM. -
Re: Which optocoupler to buy?
Worked like a charm! After soldering the new c102 cap, TV is functional again. Thank you again for the guidance!Last edited by mpadilla; 12-24-2015, 06:50 PM.Leave a comment:
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Re: Which optocoupler to buy?
Thank you for the advice! Unfortunately, out of all the components I have, I don't have a 100uF 10~16V LOW ESR lytics cap for testing.
I'll just order the C102 cap linked to digikey in the linked post. Thanks budm! I'll report back in a few days with my results.Leave a comment:
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Re: Which optocoupler to buy?
Ok, I was super tired the first time I measured and it came out that the stby voltage was low. However, today I have had rest. I went back and re-measured everything. Here's the results. PS looks good to me based on measured values? I'm thinking now all I need is C102 as budm mentioned. Can you provide feedback?
CNM801
1 - B/L ON/OFF
2 - ADIM
3 - PWM
4 - GND
5 - SCHEMATIC SAYS 24V DETECT; BOARD STAMPED DET. 5V: MEASURED 5.5V
CNM802
1 - PWR-ON/OFF
2 - N/C
3 - ST-BY5.2V:...Leave a comment:
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Re: Which optocoupler to buy?
Thank you for pointing that out budm. Of course this tv has that exact board. I'll replace that cap on the main board and report back.Leave a comment:
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Re: Which optocoupler to buy?
I will test and get back. Thank you for the feedback.Leave a comment:
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Which optocoupler to buy?
I must say it's great the amount of guidance that's available in this forumn!
I have this LN32A550P3FS, that when plugged in the standby light blinks steady. Following on guidance from this forumn and others, I opened up the tv and found on visual inspection some capacitors were bulging. I replaced the capacitors minding polarity. I put the tv back together with same results of standby light blinking. By the way all voltages are correct after replacing capacitors except for the standby voltage. The board stamp says it should be 5.2 but it measures as 4.19. The power supply is BN44-00208A... -
Re: New Members - please post your introductions here
Hi all, mpadilla here. Worked aircraft maintenance approximately 8 years. Currently work on electronics as a hobby. This community seems very involved and I'm interested in being a part of it.Leave a comment:
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