HDMI ports will not work

lost the free manual? it has simple instructions.

no RoKU stated model, saying just Roku means nothing, oK>
it has a real name and model, just like you unstated TV.
lots of Roku)
I have the Ultra (non Dongle) not the STICK.
mine is (best) a floating box. with 1 AC power pack (see?)
and is not optional.
first is power, the Ruku must have power.
then on mine power light on the roku glows
next is internet
and last is hdmi connected to TV.

Power, then internet and hdmi.
finally is TV set to TV's hdmi port number that is ROKU.!
if our ROKU is only a streaming stick (DONGLE)
it steals power from the TV HDMI port.


mine is ethernet connected for max performance

my guess is you have the TVs input selector set wrong
wide guess blind to true MODEL I am, non stated
good luck
and nothing beats a ROKU,
for 1 reason the player apps in it all work and are updated for free.
That is why TVs no come with ROKU inside for that 1 reason.
I use ROKU plex and to my own private servers.

This will mean that your TV will only accept 1 HDMI signal through that port meaning a splitter won't work unfortunately.
The only other option is to get an adaptor for another port that you do have spare on your TV, like AV or DVI.

Sounds like a main board issue.

HDMI is the High Definition Media Interface PORT on the back of a modern Flat Panel TV or Monitor.
The remote control should allow a selection menu to appear on the screen so you can choose an alternate signal input from another device or set top box.
Perhaps the TV senses that there is no signal on that HDMI cable plugged into the back port, so therefore it won't show it on the screen menu.
Turn on the device attached to the other end of the HDMI cable.

Are you sure you have four hdmi ports? I have only one hdmi port and three usb ports. Be sure you are connected to the hdmi port and for some reason not a usb port.

Ports on the monitor are for receiving the signals from the sources, not for sending signals out to another devices.
Your TV HDMI should be connected directly to the video source output, not through the monitor.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

My best bet would be a port issue - see if another device will work plugged into that port. (Some HDTVs have a HDMI port strictly for Service and nothing else but a Technicians specified cable will work in this port, look at the Manual) Check to see if your TV is set to the same port as your connecting to. One will be HDMI 1, next HDMI 2 and so on, the input button on remote should switch from port to port, make sure port setting on TV is same as #port your connected to.

Are u using HDMI/1 hook up HD box and signal?The HDMI/1 port still work?Do u use the device in the HDMI/1 port lately dose it work?Replaced the HDMI cable,Unplug the tv about an hour,plug it back in,reset it back to factory setting again.See if this work,not than ur HDMI/1 is shorted.

Try plugging hdmi cable into hdmi 1 on your TV, then open the menu on TV and find the place it lets you to make selections on this, such as Satellite or hdmi 1. One of these selections have to work.
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does the hdmi port gets detected when you try in other hdmi ports.if not getting detected then it can also be fault in the hdmi ports.because as you said that hdmi port number 1 works.that means wires are proper.but other hdmi ports not working that means the ports are faulty if all the setting are proper in setup.
as the ports are soldered to the unit internally.if the soldering gets loose the connection will not get complete.so re-soldering is required to the loose ports.

if you are not familiar with doing this you can get it done by local repair technician familiar with this model .
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This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya.

I talked to Toshiba about his problem, this morning. They said they have never hear of such an issue. I told them the TV was less than 1 week old, and would hope Toshiba would do something in response to my alternative action of returning both my Toshiba HD DVD and 52LX177 for a new brand. They said all they can do is have me go to a service center for them to repair it. 1 week old TV and DVD, $4000, for repair; I don't think so. I talked to two different people a Toshiba regarding this, with the same answer. Very poor customer support, especially for a higher end product like this. I think I have no choice but to change brands.