20 Most Recent Mitsubishi WD-62528 62 in. LCD Television Questions & Answers

i changed the lamp and now the yellow light is flashing

Look for ones that are bulged on the tops and replace those, if you don't see any bad ones your going to need a ESR meter to test them

The ps4 should have a menu that selects HDMI INPUT .

This is fairly typical of a main power supply failure. There are (at least) two supplies in your set; one of them is on all the time so the set can respond to remote signals. The other (and the possible third) is turned on when the set is used.
If you feel adventurous, comment back to this thread and I will provide some guidance if you no longer have any warranty coverage.

Check your lamp; it may have blown. Sound, no picture and a red light are classis signs a lamp has failed.

It is very skilled work. Contact the authorized service center for Minsubishi. You can't get this panel nowhere by the open electronic spare part market. Gopakumar Gopalan Google

As I've said in other posts, flat panel tvs that come from china have cheap capacitors in them that eventually break. Usually in the power supply area, where a reference ic monitors a voltage. And if and when a capacitor fails, and the voltage drops below the ic's reference point, it will not turn on the television. Fix is to replace ps Capacitors with exact values. Boards are modular, so you shoud be able to unplug and replace capacitors on ps board. Of course, be careful with connectors. It's only in the ps area of most flat panel tv's where these main capacitors break (or dry up).