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Steven
Steven, Technician
Category: TV
Satisfied Customers: 1270
Experience:  Lic. and insured, 30 years experience.
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Samsung ps50c450b1w sound but no picture. Tested Vs and Va

Customer Question

Samsung ps50c450b1w sound but no picture. Tested Vs and Va voltage and both hit correct voltages then quickly drop to zero after initial start up. Bottom ic on y buffer is blown. Still have same results with y sustain and y buffer detached from power supply board. I suspect Main board as the correct voltages are seen at the first connector.


Heatsink on main/video board gets hot and logic board LED is blinking on and off in a steady pattern.

Submitted: 4 years ago.
Category: TV