Good afternoon. I found this forum as I was looking for troubleshooting information for my Sony z9d. A lightning strike hit very close to the house and did nearly $30,000 in electronics damage. The TV appears completely dead with no status light and no picture. I found the Sony XBR-65Z9D service manual and followed the troubleshooting steps on Pages 21-26. All checks seem normal except DC_OFF_DET check on Page 23 R420 voltage was slightly higher than 3V. It was 3.475V and C418 was slightly higher that the 5V at 5.3V.
I proceeded to check the Power Board CN6401 connector. With all cables connected I have standby Voltage, Power On Voltage and all 12V when I plug in the TV. I do not have T_CON ON 3.3Volts nor do I have T_Con 12Volts. I disconnected all cables and provided a jumper from StandyBy Volts 3.3 to Power On and to T_Con On. T_Con 12 has 12V output now.
I'm at a loss. I think its the BM2 board that has the fault, but not sure. Can you assist? I'm comfortable making all checks. I would like to repair at component level if possible.
Thank you for your help!
I proceeded to check the Power Board CN6401 connector. With all cables connected I have standby Voltage, Power On Voltage and all 12V when I plug in the TV. I do not have T_CON ON 3.3Volts nor do I have T_Con 12Volts. I disconnected all cables and provided a jumper from StandyBy Volts 3.3 to Power On and to T_Con On. T_Con 12 has 12V output now.
I'm at a loss. I think its the BM2 board that has the fault, but not sure. Can you assist? I'm comfortable making all checks. I would like to repair at component level if possible.
Thank you for your help!
Comment