Re: Vizio XVT553SV HDMI ports dead.

Yes, that part # is correct but the board # is 0170-2272-3237. I noticed that all the ports are connected to one large IC that would be a challenge to replace IF one was available. The only voltage I would know to check for would be the supply and I guess it should be +5v, and it should be located at one corner. But that is a very common voltage and everything else is working fine. I would not attempt to change that IC unless I was pretty sure it was the trouble. Do you suspect that IC is a commonly used part number? I don't have the number and...

Without warning all 5 HDMI ports went dead. Did factory reset on tv but no change. Using components input everything seems to work fine but would rather have HD. Can't seem to find replacement main board #3366-0122-0150 anywhere. Couple of guys offered to repair my board if I sent it to them but I would be without use of my tv for maybe a couple weeks and maybe not get it back. I have repaired tvs for over 30 years but always had schematic and parts available but now things have changed. Can anyone give me any suggestions. Thanks, Bob

Re: New Members - please post your introductions here

Hello, my name is Bob (blhaas1user) and I am a real "old timer" (86) and a lifelong electronics nut. I joined the Navy at 17 (during WWII) to learn how to maintain aircraft receiver/transmitters and radar. After a short "hitch" I returned home to work at a radio repair shop fixing AM and early FM radios. No tv's in those days yet. After the tv boom began I opened my own shop and had a very successful 40 years. I'm retired now but still enjoy tinkering around with stuff. I'm glad to be a member of this for...