I have a sony bravia KDL52V51000 and today it decides not to read the HDMI inputs. just says no signal. it recognizes that there is something plugged into my 3 and 4 inputs but when i click each of them just says no signal. sometimes i can get my input 4 to work which is my comcast box and then when i switch a channel it will say no signal again. any ideas on whats causing this problem. thanks.

SOURCE: HDMI Input Stopped Working Sony Bravia KDL-40S2000

Bad input board BU or AU

SOURCE: Bravia KLV-S40A10 HDMI input

I agree with your solution and you are correct in that you lose very little quality by using component instead of HDMI. there are A/V receivers that transcode HDMI inputs to component; as far as I know that's the only other option

SOURCE: Remote Codes for new Sony Bravia

Sony has unique code for all equipments, those are 0000, and 0111, if doesn't work with your tv the problem it is on the remote control.

SOURCE: sony bravia klv-32t400a hdmi input through x-box

The problem is that, according to the specs for that TV, it doesn't support 1080p.
That's a 720p television you've got. (Specs here)
While the specs say that it supports 1080p, the resolution says it supports 1366 x 768, which is only 720p, not 1080p or even 1080i.
You may want to contact Sony for clarification, because their specs for that tv are contradicting each other.

SOURCE: trouble with speakers (Samsung 2.1) to 52" sony bravia lcd

that is the simplest way. please rate, thanks and have a good day

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