I pulled this 1×2 HDMI Splitter out of the scrap/returns shelf at a local electronic store. The unit did not show any signs of life (no LEDs lit, no function) but the included 5V/1A wall power supply was okay. Within the circuit the 5 volts are regulated down to 3.3 volts by a linear voltage regulator, and the output rail was shorted to ground. It took me a while to determine the two ceramic filters FB1 and FB2 as the culprit. After removal of the two filters the unit is operational again.

This entry was posted on Sonntag, April 7th, 2019 at 5:04 pm and is filed under Electronics. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.