Analysis may vary based on CRT or abnormal. To detect video panels and CRT tailgate. Detection circuit N801 (TDA6108J) the PIN voltage, find {6} pin voltage is 0V (normal is 180V), check the external resistor R809 {6} feet (47 ω/1W) had severe discoloration, after a power failure {6} feet measured 0 ohms resistance to ground, N801 apparently has a short circuit damage. TDA6108J, R809 after replacement, troubleshooting.