One LG user encountered this problem and he suggested the solution:
#LG 32LN WONT POWER ON. BLINKK TWICE TV#
WARNING: Make sure all caps are discharged before tinkering with them!! Solution 4 For LG TV Red Light Blinks 3 Times An ESR meter can be used to confirm a failure in the caps, but it isn’t required if you don’t have one. Look for any bulging or leaking capacitors coming from the top vent. Do you know Spectrum Forwarding? If you don’t know anything about this then will all the information regarding this topic from Technologi Touch.
For the time being, if everything checks out and your board does not have the 13.2 Voltage, it is likely that the power board is defective (Apart from faulty capacitors). There appears to be at least one diode as well as a power transistor in the area where the clicking occurs. You could measure the bottom of the board to determine if those are present. You have the 3.5V on standby, right? Fuse F2 should be checked for continuity, and the voltages to the right side of the transformer should be visible. Solution 2 For LG TV Flashing Red Light Won’t Turn On I’m not sure whether your warranty is still valid – if it was a one-year or three-year, but if you paid using a credit card, many of them offer a two-year extended warranty on purchases. This resets something on the power board, which could have been the source of the issue.Īside from that, it’s a hardware issue. LG recommends unplugging the TV for 6 hours (to allow the internal caps to drain) before plugging it back in and turning it on. I’d guess main board but up to you which one you want to purchase first.How To Fix LG TV Red Light Blinks Three Times?įollowing are different solutions that might support you to resolve your problem: Solution 1 For LG TV Blinking If it’s none of the above then the problem is likely a faulty main board or power supply and you’ll have to replace those. If you have a short on any of those strips then that’s most likely your problem.Ģ) Disconnect LED backlight cables and test voltage on backlight connections on the power supply board and test for shorts in that circuit.Ģ) Inspect power supply board and main board for any swelling capacitors or burnt out components. Use your multimeter and test to see if each LED strip circuit is shorted.
Unplug TV, open up the back and find the cable/wires that go to the backlight LED strips. If it turns on then problem is backlights and you’ll need to pull apart to replace them.Ģ) Step 1 should render step 2 unnecessary but I’ve already written it :). If so, you may be able to put TV in bright enough light to see if the LCD is working and a picture is displayed. Taking screen off to inspect backlights is a pain so let’s try and diagnose without having to pull too much apart.ġ) Unplug TV and disconnect LED backlights from power supply.
I’m picking it’s one or more of: PSU, Main Board or LED strips.īecause you get a flash of LED backlights when plugging in I’d suggest there is a short in one of the power supply or LED strips, possibly a burnt out LED which is extremely common. The main board might flash LED if it’s not getting enough power or if there is a short somewhere. I imagine you’ve googled a solution and tried unplugging overnight then restarting. A blinking LED on lots of devices normally means the device has a known fault of some type.
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