Beko 20lb450 wont start up keeps going back to standby after a about 5 second

Hello Tony
the problem is in the power supply circuit
the DC detector identifies the problem and wont start unless you repair it.
the internal supply +15v -15v these 2 regulators and the capacitors around it makes this problem.
if you know how to service it, its easy if not, you have to take it to a technician to do it for you.
Good luck.

If your TV is going to standby, it is most likely not getting a signal. Try using the input button on the remote to check other inputs. Also make sure the source (DVD, Cable, etc) is on and plugged in properly.

These are color systems. Check the color system, which your country adopted.

IIC Bus line is busy. Should be a main Digital board problem. Check and replace it.

Hi,
I have the User manual/instructions in PdF format that you can look in.....
pls send me an e-mail ,I can forward it to you..
Take care and do not forget to rate me too..Thanks

[email protected]

It's universal unless it's also an 12V set.
Make a picture of the power connector with a mobile telephone and go to your local electronic store.

when i turn it on it stays on for 3-4 seconds then shuts down

Unit is in protect mode there are a few problems that can trigger protect mode the most common is blown channel (shorted outputs). Sometimes one of the 15v regulators may go bad causing imbalance of supplys triggering protect mode. Also sometimes a bad solder connection could cause unit to go into protect also. I work for Denon authorzied repair center in Michigan if your nearby and Shipping to Michigan is economical let me know [email protected]

Going into protect due to either blown channel or probably a 15v regulator might be down which I have seen many times also. causing unit to go into protect.