It sounds like a cold solder joint on a component that generates heat. This problem is correctable by a technician and or someone with the ability to troubleshoot on a component level.
SOURCE: power button flashing red
stk convergence packs may haqve failed in the dead short mode stk392-110 removing them from circuit may allow the set to turn on again good possibility do you know how to solder?
SOURCE: TV quits working, screen goes black and red light next to power green light flashes 4 quick flashes.
The Sony diagnostic routine for 4 blinks indicates it to be a vertical deflection problem.
Did you see a solid horizontal line in the center of the screen prior to it going out? If so, that is a tell tale sign for vertical problems.
basic sony reset below
The STANDBY light will flash if the television detects an issue within the television. Some of these issues can be resolved simply by following the steps below to reset the television.
If the issue is still unresolved after following all of the troubleshooting steps, service may be required. Please note the number of times the STANDBY light flashes and relay that information to the service center
SOURCE: Panasonic PT-56LCZ70 no picture or sound
My name is Jonathan and I am an employee at the Panasonic Customer Call Center. Based on the symptoms you've described, I'd recommend contacting the Panasonic Customer Call Center at 1-800-211-7262 for assistance. We are here to help customers that have purchased (or are considering purchasing) our products and would like to assist you with resolving the symptoms described here. Our hours of operation are:
Mon - Fri, 9 AM - 9 PM EST
Sat - Sun, 10 AM - 7 PM EST
SOURCE: Panasonic PT 50LC14 problem
You have to close the lamp door. It has a switch in it much like a clothes dryer door in that when it is open it wont operate.
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