TV cant be switch on, RED LED diagnostic Blinks .. 3 times... then 4 times. Please advise probable cause and send sTV hcematic diagram.
When power is switch on, the two green LED lights up but the screen remain blank .. after a few seconds, two green LED switch off and the red LED diagnostic blinks 3 times... then 4 times ... then continue blinking 4 times.
An expert who has achieved level 3 by getting 1000 points
An expert that got 20 achievements.
An expert that got 10 achievements.
An expert that got 5 achievements.
Re: TV cant be switch on, RED LED diagnostic Blinks .. 3...
Hi, this is main board failure and you will need to replace this vital board. you power board is fine but, it is unable to send a proper current through the main mother board due to the damage at hand.
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones). click here to download the app (for users in the US for now) and get all the help you need. Good luck!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Over Voltage Protection . this is the cause for 3 blinks you see by its stanby/power LED.
Visit the site named 'Electro-help' for more
details. Click this link. View it in
"Timeslide" option, which can be selected from the drop down box
menu by the [Sidebar] tag, at the top left corner of the display
window. It will make search easy. There
are more than 1000 posts to different brand TVs now. Pull up older posts there.
In standby mode (red led on/after the led stops from blinking), press "Display", "5", Volume (-)", "Power on" on the remote control in sequence, self diagnostic screen will be display, let me know the what is on the screen to diagnose where the fault came from.
Power LED Blinking timing chart When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by the number of blinks of the Power LED on the front panel of the unit. blinking
1 dg board, (stv 5v sense time out) 2 d board 3 d board 4 p board 5 d board 6 su sd sc boards 7 su sd sc boards 8 ss board 9 panel config 10 digi board- 11 pb board 12 h board 13 dg board
The blinking red light at the the front of the television is the "Diagnostic STANDBY/TIMER LED".
This little red light will blink 2, 4, or 5 times and then stay off for three-seconds. And blink again for 2, 4, or 5 times. This cycle repeats. The most common diagnostic code is the 4-blink code.
When the red LED blinks 4-times, it means one of two possible causes:
1) +13V is not supplied on the A-board. Or, 2) IC502 is faulty.
It is best to take this television set to a repair facility and ask that the +13V power supply be repaired.
The copper tracks and integrated circuit pads are very thin and delicate on the KV-24FV12 circuit board, and will easily lift off of the circuit board, if the incorrect desoldering tool is used. Unless one has a good quality PACE vacuum desoldering unit, one should not attempt to repair the television.
it is a bad fan. it also could be a power supply. Quite often the real problem is dirt clogging up the fan(s) to the
point that they need to be replaced. Operation of the set in a dirty
environment is not a good idea