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LG RH177 DVD Recorder/HDD Recorder - Page 9 Questions & Answers
NO picture on my tv screen
First off, 126 vdc is the backlight B+ voltage using frame as ground, if you measure across the + and - pins on the plug with it connected you should be seeing a couple volts if the backlights are bad, what's happening is the inverter overload is shutting down the minus side, you will always see the hot side voltage of around $125 vdc if the inverter is working. Very good chance you have bad LED backlights as they are known for failure on this and a lot of other LG model sets.
Does anyone know about fixing LG TV's
Don't suppose you have a re-flow oven. If it worked for awhile after soldering on the main board I'd try re-flowing the entire board, sounds like some cold solder joints if it worked for awhile after soldering. Not sure how a grounding issue would make half the picture have issues however but anything is possible.
LG 55UH6150 darker at top
I assume you changed all the LED strips when you changed the bad ones, NEVER replace part of them, if you didn't replace them all, open the set up again and replace the ones that weren't replaced the first time and all will be well.
LG 42LB5610.ats Tv won't turn on with flashing red light at on off button and the optical cable output
This model LG set had a really high LED backlight failure but in your case I'd look towards bad caps as we have seen this a few times in our shop, it's the 4 in a bunch close to the connector that goes to the main board that gives issues, you can buy them for a few bucks and solder them in if you have the equipment, however a replacement power supply is quite inexpensive, it's also possible you have main board issues but more likely the power supply.
My lg 65 smart tv appear to have few thin horizontal black line at the bottom screen that flickering...what can I do?
1. Check to see if there is any type of damage to the screen, such as a scratch or crack.
2. Try adjusting the picture settings on the TV, such as brightness and contrast.
3. Check the connections between the TV and the external devices it is connected to, such as a DVD player or cable box.
4. Try unplugging the TV for a few minutes, then plugging it back in to see if the lines go away.
5. If none of the above steps work, it may be necessary to contact the manufacturer for a repair or replacement.
I have a LG DVD and Video Set Recorder Model RC897T, I connected to my Vizio Smart TV using HDMI, when I play VCR or DVD I have audio but no video, any advice would be appreciated
The most likely issue is the output resolution on the RC397T. It could be set to 1080p (progressive) and needs to be 1080i (interlaced). I've seen this happen with other set top boxes. On the front panel of the DVD/VCR recorder, there is a button labeled Res. It's to the left of the USB port and to the right of the DVD/VCR selection button. Each press of the button will change to a different resolution: 1080p, 1080i, 720p, 480p, 480i for HDMI. (The resolution button also changes the component out resolution between 480i and 480p. You may need to step through these choices, as well, even if the component out isn't in use.)
Due to some issues with resetting the resolution, you may need to turn off the DVD recorder and possibly the TV after some of the resolution changes to see any video output change.
I hope this helps. The user manual for the RC897T is available from the support page: https://www.lg.com/us/support/product/lg-RC897T.BUSALLK . The manual link is on the right hand side of the page. My browser gives the direct link to the manual as https://gscs-b2c.lge.com/downloadFile?fileId=KROWM000185603.pdf . See page 60 for the front panel button descriptions.
Cindy Wells
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