I have a M550NV that won't make it past the startup. It was possibly hit by lightening. Logo flashes between Amber and White, then startup logo displays on screen (backlight works), about 1min 30 secs no response from remote or side control knob. I need any help I can get. I have some experience in fixing flat screens. All capacitors look good, no bubbles or leaks. Backlight and Readings on the Power Supply are as follows
18V Standby = 0.00V, On = 18.17V
18V Standby = 0.00V, On = 18.17V
GND
GND
PWM Standby = 0.00V, On = 3.34V
NC =
BL_ON Standby = 0.00V, On = 3.33V
POWER_ON Stanby = 0.00V, On = 3.19V
12V = Standby = 0.00V, On = 11.77V
12V = Standby = 0.00V, On = 11.77V
12V = Standby = 0.00V, On = 11.77V
GND
GND
GND
GND
5V Standby = 5.15V, On = 5.15V
5V Standby = 5.15V, On = 5.15V
5V Standby = 5.15V, On = 5.15V
5V Standby = 5.15V, On = 5.15V
5V Standby = 5.15V, On = 5.15V
5V Standby = 5.15V, On = 5.15V
Bottom 450V Capacitor Standby = 102.8V, On = 343V
Top 450V Capacitor Standby = 102.8V, On = 343V
18V Standby = 0.00V, On = 18.17V
18V Standby = 0.00V, On = 18.17V
GND
GND
PWM Standby = 0.00V, On = 3.34V
NC =
BL_ON Standby = 0.00V, On = 3.33V
POWER_ON Stanby = 0.00V, On = 3.19V
12V = Standby = 0.00V, On = 11.77V
12V = Standby = 0.00V, On = 11.77V
12V = Standby = 0.00V, On = 11.77V
GND
GND
GND
GND
5V Standby = 5.15V, On = 5.15V
5V Standby = 5.15V, On = 5.15V
5V Standby = 5.15V, On = 5.15V
5V Standby = 5.15V, On = 5.15V
5V Standby = 5.15V, On = 5.15V
5V Standby = 5.15V, On = 5.15V
Bottom 450V Capacitor Standby = 102.8V, On = 343V
Top 450V Capacitor Standby = 102.8V, On = 343V
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