Re: LG 50PC3D Power Issues.
So Vs never reaches around 180V?
So Vs never reaches around 180V?
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Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: LG 50PC3D Power Issues.
I can't get it to stay on now. The resistors just seem not to be in the sweet spot. Am I even doing this right?Attached FilesComment
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Re: LG 50PC3D Power Issues.
I am going to solder some very light gauge wire to the ends of the resistors, and wrap the ends of the wire around the prongs of the proper leads on the board with the harness disconnected. Once I have everything connected, then I'll snap the harness back in place. I'm sick of trying to poke the ends of the resistors into the holes in the top of the harness where the wires go in, and hope they hit the pins.Comment
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Re: LG 50PC3D Power Issues.
I don't understand. I tossed my idea of jumper wires. I stripped back the sheathing on the wires going to the leads you specified. Attached the resistors directly to the wires. One resistor off of s-5v to rl-on. From the same lead connected to s-5v another resistor to m5v-on, and from that same lead, the one connected to s5v, another resistor going to vs-on. They are all wrapping bare wire. Nothing's is touching what it shouldn't. The power supply starts, a couple seconds later, shuts back off. Just like it did originally.Comment
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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... -
Hi all!
I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅
I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
https://www.badcaps.net/forum/troubl...-hardware-devi... -
Hi all,
TL;DR - this laptop is driving me nuts with the oddball power-related behaviors. Appreciate any insight you can provide!
I'm experiencing a power issue on an Asus Probook P5440UF-XB74. Although I've worked with electronics and computers for decades, this is my first attempt at getting into motherboard-level component troubleshooting. Any help the community can provide is greatly appreciated!
A few weeks ago I was using the laptop (on battery power) for a Zoom meeting. The battery was running very low (long meeting) but I wasn't worried about... -
hey guys, hoping for some pointers to repair an eBay bought "faulty" laptop.
Ill try and give as much info as I can.
Dell Inspiron 17 (7786) Laptop
Service Tag: 5J0NHT2
Bios: 1.9.0
When I received this , it would only flicker on the KB backlight for a second, then off and on.
Then it started getting weirder!
Sometimes when attaching the AC power supply, and pressing various pre-boot diagnostic keyboard keys... it did try to boot, in fact out of a hundred attempts, the laptop did actually boot into the Bios ! but never has... -
I recently turned on my old NES to find the red light won't go on at all. When powered on it shows black bars on the tv and a loud buzz through the tv speakers. Powering it off, the buzz goes away and tv goes back to normal (white snow).
I tested the power supply itself and it is outputting 9V as it should - first two solder joints on the board at the power port show the same.
Here's where it starts getting funky - When powered on, one side of the 7805 voltage regulator is showing 18V and the other is about 8.7V (center 0).
On the big blue connector I get...
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