Klv-48W652D Backlight issue
Sony LED TV model no klv-48W652D came to the workshop for repair, customer said that sometimes the picture comes and never comes, the sound keeps coming, after checking the set, its backlight is off, the backlight strips are fine. There was a fault in its backlight driver circuit, pin no 34 of IC BD9423EF was grounded by three resistors, one of them 1.5K was bad, after changing the resistor, the backlight started working fine.
Shaukat Ali has over 30 years of experience in LED TV repair, specializing in chip-level repair work. He is an expert in Sony LED TVs, and also repairs other major brands like Samsung, TCL, Orient, and Haier. His expertise includes display panel faults, motherboard issues, power supply circuits, T-Con, and HDMI faults. Based in Lahore, he shares real-time fault finding cases from daily repair work to help technicians and learners with practical experience.
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