Dead Set

Model No: Sony KV-32TS46
Symptoms: Dead Set

Remedy: I thoroughly check and inspect the condition of RY602. It is the switching relay which is responsible for turning on and off the TV set. One side of RY602 is connected to power oscillator output that runs nearly 350 VAC peak-to-peak at 90Khz. Once the relay is closed this energy is forwarded across the power output transformer and provides the drive necessary to produce the B+. Measuring the input voltage of the relay with respect to ground i got 150 VDC. On the other side it has 3 VDC. Therefore, RY602 is defective.