Companies selling faulty new QGAH02095 Samsung Inverter board transformers. (In 4K)

This is a Samsung 40 inch LCD Television model LN40B530P7F which uses a Power Supply and Inverter board combination. The part number for this PS/Inv board is BN44-00264B. The television uses CCFL lamps instead of Led's which is obviously powered by a ballast transformer for each ccfl lamp. The 4 transformers that supply the voltage also have a part number which is qgah02095. One or more bad transformers on the board causes the backlights to go out after 15 or 20 minutes of playing time, leaving a no picture/black screen but it still has sound. We replaced the faulty inverter transformers with all brand new transformers purchased from overseas. Come to find out that the new transformers, which were exact replacements, had different values on the windings which caused the television backlights not to fire up at all. FOR TOOLS AND TEST EQUIPMENT https://bigdogelectronics.us/

Category