Unfortunately not with Chromecast

I had bought this converter in order to operate a Chromecast at a not so old flat-screen TV, which unfortunately has no HDMI input. To make a long story short, the Chromecast I have in mind is not up and running. With or without a power supply for the converter, it makes no difference in the result. Since no documentation was there one can not read, in what circumstances an additional power supply is also necessary. Damti was or is the converter for the actual purchase purpose unsuitable. Ergo the devaluation.
But: The operation of a notebook with HDMI output at the same converter and same flat-screen TV is functioning properly. Therefore then still 3 stars.
Conclusion: If you want to buy the converter for connecting a Chromecasts, it should be better.