Chosen Solution
I have a Mecer LED Display (Model: 32L81F) & the LED display isn’t giving anything. When I switch the Display monitor on it flickers the Mecer logo as it always would when switching it on but then the screen goes black & I only get sound, no visuals. Any assistance would be greatly appreciated.
Hi @liamxpearmain 4 years old is not old for a TV ;-) There’s not much service information out there regarding the TV (at least that I could find) so first up disconnect the power from the TV and remove the back cover and then take some close up images of the boards i.e. power board (board where power first connects to) the mainboard, and possibly the tcon board (if there is one) and post back here in your “question” Here’s how on ifixit Adding images to an existing question If there is a tcon board then this may be the problem as it is used solely for the video output to the screen. This board connects the mainboard to the screen i.e. usually one ribbon cable from mainboard to tcon board then usually two ribbon cables from the tcon board connecting to the screen (which will be hard to see as they disappear behind panel etc). Check if there is an smd fuse mounted on the tcon board close to the ribbon cable connector for the cable from the mainboard. If there is check the fuse for continuity with a DMM - Ohmmeter function and if OK reconnect power to the TV and check for voltage at the fuse. It will be low volts DC 12-24V BUT there is exposed lethal AC volts on the power board so be careful! Not conclusive but to have to start eliminating some things e.g. no power at tcon then its the mainboard If there is no tcon board it may be integrated in the mainboard i.e. so the mainboard connects to the screen. In either case try to find the boards’ make and model numbers (printed on boards themselves) because sometimes the same board is used in different makes and model TV and buying a replacement board can be cheaper and less time consuming than trying to fix one without the schematics etc.
