Hello guys,
I have a Samsung plasma tv PN51E450A that is giving me a headache. It responds to power button, i can hear chime going on and goes off when i push the button for second time. Remove the back cover, using my multimeter, I can see that VS voltage goes up to 206V for a second and immediately drops to 10V. If i'm not mistaking this tv has the Y/X main board built in one. I checked transistors on this board and it doesn't seem to have anything wrong. I also checked for burned IC's on buffers, but nothing. Power supply has all voltages except VS and VA. I tried to do the jump of PS-ON with a 5V line but didn't work. Power supply didn't kick on.(any help here)
By disconnecting Y/X main board from power supply, voltage doesn't even try to go up for a second.
By checking shopjimmy's website i found that they sell the EEPROM as a possible fix for Tv turning on with no backlights. (LED indicator shows tv is on but no picture).
Any suggestions? Have you guys had a successful repaired of this symptom by replacing EEPROM?
Thank you in advance.
Note: I'm posting a few pic of boards. They don't belong to tv i'm working but they are the correct ones.
I have a Samsung plasma tv PN51E450A that is giving me a headache. It responds to power button, i can hear chime going on and goes off when i push the button for second time. Remove the back cover, using my multimeter, I can see that VS voltage goes up to 206V for a second and immediately drops to 10V. If i'm not mistaking this tv has the Y/X main board built in one. I checked transistors on this board and it doesn't seem to have anything wrong. I also checked for burned IC's on buffers, but nothing. Power supply has all voltages except VS and VA. I tried to do the jump of PS-ON with a 5V line but didn't work. Power supply didn't kick on.(any help here)
By disconnecting Y/X main board from power supply, voltage doesn't even try to go up for a second.
By checking shopjimmy's website i found that they sell the EEPROM as a possible fix for Tv turning on with no backlights. (LED indicator shows tv is on but no picture).
Any suggestions? Have you guys had a successful repaired of this symptom by replacing EEPROM?
Thank you in advance.
Note: I'm posting a few pic of boards. They don't belong to tv i'm working but they are the correct ones.
Comment