I have no lamp voltage on this and wondering any idea what controls it? vizio 0500-0407-0700
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Re: what controls 24v backlight on this power supply?
maybe worth a read of this thread
https://www.badcaps.net/forum/showthread.php?t=34470Last edited by vinceroger69; 11-14-2015, 03:10 PM.
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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... -
This was my initial thread.. https://www.badcaps.net/forum/troubl...-m-at-wits-end
(All the Electrolytics are brand new.)
I started a new one, hope that's ok, because my question is different now! (Strangely enough, after I walked away for a few weeks, it stopped lighting up at all!!)
I am determined to fix this power supply because I have the skills to replace bad components, I just need to find out... -
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... -
Dear forum, I would like to ask some help identifying the backlight circuits resistors to limit the ampere to the backlight leds.
The power supply is a BN44-00852 and I want to decrease the backlight to increase the lifetime of the LEDs.
The TV is pretty much always on, used for CCTV cameras.
I suspecting R9838 -> R9841 resistors but I'm not sure. Thanks in advance!
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Hi,
This TV uses 2 bottom edge LED strips. 1 was faulty but replaced both. However I have still noticed that the RHS of the TV switches on and then TV starts to recycle power getting to the LG logo and start over. If I disconnect the RHS LED strip will work with half screen lit. I have swapped LEDs and same problem.
The power supply uses MAP3516 chip. Have replaced it twice, Checked all components as greatly suggested in this post https://www.badcaps.net/forum/troubl.../101580-lg55uh...
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