HDMI Malfunction My Hitachi 42HDT51 42 in AV box has an HDMI input 1. When I connect my Motorola set top box to this input via HDMI cable, nothing happens. When I connect to HDMI input 2, it works fine. What's wrong with input 1?

Page 18 of the manual, you shouldn't need to do steps 2 or 3.

CONNECTING A COMPONENT SOURCE WITH HDMI or DVI CAPABILITY TO INPUT 1 or INPUT 2
1.Connect the HDMI or DVI to HDMI connection cable from the output of the HDTV set top box or DVD player to the HDMI input as shown on the AVC Center below.
2.With DVI output, connect the cable from the AUDIO OUT R of the HDTV set top box or DVD player to the INPUT (AUDIO/R) jack.
3.With DVI output, connect the cable from the AUDIO OUT L of the HDTV set top box or DVD player to the INPUT (AUDIO/L) jack.
4.Press the INPUTS button, then select INPUTS 1 or 2 to view the program from the HDTV set top box or DVD player. The VIDEO OSD label disappears automatically after approximately four seconds.
5.Select ANT A or B from the INPUTS menu to return to the previous channel.
NOTES:1. Completely insert the connection cord plugs when connecting to rear panel jacks. The picture and sound that is played back will be abnormal if the connection is loose.
2. The HDMI input on INPUT 1 or 2 contains the copy protection system called High-bandwidth Digital Content Protection (HDCP). HDCP is a cryptographic system that encrypts video signals when using HDMI connections to prevent ******* copying of video contents.
3.HDMI is not a "NETWORK" technology. It establishes a one-way point-to-point connection for delivery of uncompressed video to a display.
4.The connected digital output device controls the HDMI interface so proper set-up of device user settings determines final video appearance.


http://tv.manualsonline.com/manuals/mfg/hitachi/lcd_television_lcd_display_monitor_32hdl51.html?p=18

If you have a cable box the channels are selected via the cable box remote and the TV is set to an HDMI video input. The specific input is identified where the HDMI cable connects from the box.

Use the video input remote to select the HDMI for the cable box.

Scanning is for identifing the over the air stations that use the coax input noted as antenna (ANT IN) on the back of the set.

Hope this helps?

try unplugged all units involved---HDMI does not like being hooked or unhooked with units powered and or on.

Wait a while and make the connections and then power set, box, whatever is inline back---the units will try to reboot and that may cure the issue- it is worth trying

Hi, Your set top box (PVR) is running on channel 3 or 4. Go to menu and sellect a source TV, DVD
Note: Do not connect more than 1 set of cables to tv or you may damage something.
TV > box connect RCA cable or HDMI not both.
Set top box > connect RCA or HDMI Not both.
audio devices > TV connect RCA or HDMI not both.
Good luck.

Hi,
Your set top box should have secondary RCA outputs along with the HDMI. run another RCA standard yellow- red- white cable to the Onkyo's video 1 input. Use Monster cables for best performance..

jm

You need to assign the HDMI input(s) to the functions they represent, using the Front Panel Tuning/Preset control...

If you connect a video component to an HDMI input, you must assign that HDMI Input to an input selector in Setup.
For example, you could assign the “DVD” setting to “IN1”, and assign the
“CBL/SAT” setting to “IN2”.

Likewise if you use digital audio inputs...

Assigning the Digital Input
If there’s no sound, press the [DIGITAL INPUT] button repeatedly until sound is heard. The digital input is now properly assigned.
If you connect your DVD player to the AV receiver’s COAXIAL 1 DIGITAL IN, and your cable/satellite receiver
to the COAXIAL 2 DIGITAL IN, as shown, it’s not necessary
to assign the digital input.

Had the same problem.
Fixed by unplugging everything from the power source, leaving for 2 minutes then plugging back in.
Works fine now.

The DVD-VR375 does not have an HDMI input. The connection should be:
• RED WHITE & YELLOW CABLE from your cable box (AV OUT) should connect to the DVD-VR375 (AV IN 1). Set the DVD-VR375 to AV 1 using the INPUT SEL. button.
• Next, connect an HDMI cable from the DVD-VR375 (HDMI OUT) to the TV (HDMI IN). Set the TV to the proper source.
This connection would allow the recorder to work as a pass through and will let you record TV programs as well as watch your cable channels.

Hope this helps!

Well, I won't take the credit of others. Many people have the same problem as you do.
In the search box on the top of this page, put in " PS3 HDMI ". The one that has the 10 solutions so far has the best answers for you.
Good Luck

hook up hdmi cable from cable box to receiver hdmi input 1 then from hdmi out to your projector or tv,i don't know what kind of inputs you have on your projector .whatever you have run from projector to receiver input example component red,blue,green then run from both say to the av input 1 then set your receiver to av1 and you should get picture.