SOURCE: sony tv model klv-32u100m dead standby 5 volts ok
most probably is (a) board ..very common on these models.These boards are made by RoHM.These are similar and used in maganvox,philips and others..Very common breakdown
SOURCE: 55HDS69 Power Supply problem
I have found that the power supply is usually good, it's the other boards that tell it to shut down within a second. There are input called Vsego and VSago that tell the power supply to stay on.
SOURCE: INSIGNIA NS-37LCD MANUFECTURED OCT 2006 DEAD NO POWER
found caps in power supply bulging so i replaced all electrolytes in power supply but TV still doesn't work when i hit the power button the power supply just ticks.
SOURCE: I have a ViewSonic N3250W Television with
Does the LED kick on when you push the power button or when you apply power? Typically, the 5volts will run the microprocessor and that looks for a command (power button). When it sees a command, it will send a signal to the power supply to kick that on.. so at this point, you want to look for that signal. If you push power and no power on (p_on) signal goes to the supply, its likely your main board.. but if it does, and the supply doesn't react, then maybe its the power supply. I am not totally familiar with this tv, but thats how all of them really work. Even if the caps look good, some could be bad.. look for brands like "capXon, sanXon" are typically the defective ones, theres another but its slipping my mind.. usually 1000uf @ 16v are bad, or 2200uf @ 10v are also common.. you can search the value and the little code, usually like C9M or something and see if that batch has known issues..
let me know what you find, or how I can help
SOURCE: ViewSonic N3250W Television with FSP212-3F01.dead needs VOODOO
I am working on the same power supply right now, my has a bunch of bad caps that I already replaced but I did not try to turn it on yet becuase I see that RS1 and RS8 are missing, some one had try to fix this power supply. Can you please tell me the value of these two resistors? Please see my pictures at http://s807.photobucket.com/home/budm/allalbums
Your problem sound like the logic board problem, I can tell you what you should have if I can find out if these two resistors were left out from the factory or some had removed them. I fixed the same power supply for the N2652 but I did not take the pictures of the board, I wish I did.
1,025 views
Usually answered in minutes!
×