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Do the flashlight test. With the TV on and listening to a program, shine a flashlight on the screen. If you can see a faint picture, the LED driver is bad. If you cannot see a faint picture, the T-con board is bad. TV Parts Universal TV Stands DLP Chips ShopJimmy You can get parts here.
No. There is no fuse for the screen. Most often sound with no picture issues deals with the back light circuit. With the set on and tuned to a channel that is in service, Shine a flashlight on the screen at various angles and look carefully for a very faint image. If it is there, the back light has failed. On LCD TVs with fluorescent back lights, it is often the inverter board that is bad. On newer LED models the back light circuit is often part of the power supply board.
Likely there isn't anything you can do on your own at home short of increasing the brightness through the menu. You probably have a bad IC that will have to be replaced by a technicion
Since not a brand or model number listed : If its a LCD set get a flashlight and make the room very dark with the set on. Shine the light on the screen at an angle to see if you see a faint image of the picture on the screen.
You likely have a LCD set there which may likely use a back light inside to light the image, get the room as dark as you can and with a flashlight illuminate the screen from a angle, with set on if you can see the faint image on the screen of the program you have a Backlight issue'
1. Voltage not there or not being switched on for backlight.
2. Actual back light bad.
If the image can be seen with a flashlight one of the above is the issue and your "picture will appear very faintly" also suggests this.
when on black screen, put a flashlight onto screen, if u can see picture, its the capacitors (2), 3.00 in parts, follow the power cord to the board inside, look for capacitors that are bubbled on top,
Try the flashlight screen test with TV on to be sure an image is showing, hold flashlight above at an angle, if you see a faint image the motherboard needs replacing
Use a flashlight to shine light near the screen in a 45 degrees angle when the TV is ON, press menu to see if you get fainted dark video in the background. fainted video indicates that the backlight is defective.
This type of failure could be due to a lower backlight inverter voltage as well.
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