I have a problem with my JVC projection tv RM-C1270G the HDMI port is not working at all. When I hook my xbox 360 HDMI cable to the tv there is a black screen and no picture. I need help

SOURCE: HDMI input failure

Hey guys, had the same problem. Found this solution on the web. Worked for me.

JVC HDMI Port Fix

Turn the TV on, and enter the Service Menu. Select 2 for Self Check. Then turn the TV off, and after the fan turns off, unplug the power cord. Reconnect the power cord, turn the TV on, and the HDMI port is reenabled.


Here’s how to get to Service Menu:

Before entering the SERVICE MENU, confirm that the setting
of TV/CATV SW of the REMOTE CONTROL UNIT is at the
"TV" side and the setting of VCR/DVD SW of the REMOTE
CONTROL UNIT is at the "VCR" side. If the switches have not
been properly set, you cannot enter the SERVICE MENU.
1) Press [SLEEP TIMER] key and while the indication of
SLEEP TIMER 0 MIN is being displayed, press
[DISPLAY] key and [VIDEO STATUS] key (Fig.2)
simultaneously.
2) The SERVICE MENU screen of Fig.1 is displayed.
3) Verify what to set in the SERVICE MENU, and set
whatever is necessary (Fig.1).
Refer to the SERVICE ADJUSTMENT for setting.
4) Press the [BACK] key to return the SERVICE MENU.

This should work.

SOURCE: Hooking up Xbox 360 to JVC TV 20 inch 1 year old tv from Luxembourg

change the plug on the back of your xbox 360 from hd to tv unless of course your tv is hd then change it to hd :]

SOURCE: cant hook up HDMi cabe from PS3 to JVC

1. check the input that the PS3 is connected to
2. select that input on the TV
3. Press and hold the [power] button on the PS3
4. perform the video setup for the PS3

My guess is that you don't have the HDMI setting correct on the PS3.

SOURCE: JVC LT-32DS75SJ issue with HDMI

Try this

1. Turn ON TV
2. Connect PS3 to TV HDMI input
3. select TV HDMI input for PS3
4. turn OFF PS3 if it is ON
5. Press and hold the [I/O]Power button until the PS3 until you get the "HDMI Detected" message.

Also, this TV has a circuit that deactivates the HDMI if the rear cover is removed. It is possible the HDMI may have been turned OFF. This is reset in the service menu of the TV.

SOURCE: no owners manual can't get new blue ray dvd player to work on tv

Here is the manual:
http://www.hdtvsolutions.com/pdf/JVG%20HD52G56G.pdf

When using the HDMI connections you may have to tell the DVD to output to that port.  Also you may have to connect additional sound cables from the DVD output to the TV.