Re: Samsung LN2353H - Bad Power Supply BN44-00158A
Be very careful replacing it, those things have usually 450 volts and that can KILL a bear.
Be very careful replacing it, those things have usually 450 volts and that can KILL a bear.
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Re: Samsung LN2353H - Bad Power Supply BN44-00158A
Oops- I just started putting back together the Samsung I was working on- model LN-T2353H A, and I forgot to mark where one of the connectors goes. And there are two sockets for this one and it fits in both! I'm usually a much better technician than this but I thought I'd remember which one it goes in. Pics attached- if anybody can let me know which one the connector should fit into I'd much appreciate it.Attached FilesComment
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Re: Samsung LN2353H - Bad Power Supply BN44-00158A
most of the pins (24v & gnd) are the same except for the backlight control pins 11~14. check on the back of the inverter board to see the pin labels. I would think if placed on the wrong plug, the backlight would not come on but I doubt there would be any damage as those are only control lines.
I suspect it should connect to CN803 (plug nearest to the edge of the board)Last edited by R_J; 11-11-2020, 10:42 PM.Comment
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Re: Samsung LN2353H - Bad Power Supply BN44-00158A
Just look at the pin out of the Inverter board connector to locate the BL_ON pin then match it up with the connector of the power supply board.
You can see that the two connectors of the power supply board does not have BL-ON pin at the same location and also as shown on the schematic.
https://www.shopjimmy.com/samsung-bn...r-supply-unit/Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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This specification for the Samsung Galaxy Book 2 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Galaxy Book 2 boardview and Galaxy Book 2 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...09-07-2024, 05:50 AM
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This Samsung combined power supply and inverter was replaced a while ago from a Samsung 37inch LE37B530P7W TV. However I would like to repair this one.
I have replaced the Mosfets Q1820 and Q1821 ( FDPF7N50U) which were both blown and the fuse FM802S. The schematic for this power supply that is attached doesn't relate to this power supply as the driving transistors and diodes are D1830, D1831, D1832, D1833, Q1811 & Q1810 are nowhere on the schematic!
Does anyone know what the components for D1830, D1831, D1832, D1833, Q1811 & Q1810 should be? I ask as I did change the Mosfets... -
I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump
One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy... -
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hello,
I'm hoping to get some help figuring out how to troubleshoot this power supply board. The television is a Samsung UN75J6300AFXZA, version no. UH03. The power supply board has two model numbers on it, L75S1 and BN44-00723C. As far as experience level, I'm familiar with recapping boards in terms of safely going through the soldering motions, choosing suitable replacement parts, and so forth, but as far as understanding the various functions of each part of these TV power supply boards, I am a rank beginner.
When I plug the TV in, the screen flashes on and off and...
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