HDMI to component cable converter question for Contour mini box
My household has a Panasonic plasma TV manufactured in 2008. Some time ago a surge took out and presumably permanently disabled both of its' HDMI jacks. Ever since this incident we've had to resort to using RCA-type component cables for both audio and video, producing a picture quality darned close to HD. We have since went back to Cox, but the provided mini Contour box only comes with either HDMI or coax outputs. Since the HDMI option was out of the question which left the coax as the default connection, which was how the install tech set it up. As a result this TV can't produce any better than 480 resolution.
I've been searching the internet for an HDMI-to-component workaround and have narrowed the choice down to a few models. The proposed converter setup will only be used from the Cox mini box to the TV; there will be no other devices such as a DVD, BluRay, game or streaming media player connected.
What I'd like to know is what experiences other Cox users have had with a similar arrangement, and whether they or Cox tech people in this forum would share any qualifications, reservations or any advice.