Understanding Your Uverse Box

This picture shows you the back of Uverse boxes regardless of the model. I hope this will help you understand how cables should be connected on the back of your box.

1. TO WALL (VIDEO IN)- Coaxial input for HPNA connection. The other end should always go to the wall.

2. HDMI- Connects to a high-definition TV or home theater receiver with an HDMI input (for a DVI input, use an HDMI-to-DVI adapter)

3. NETWORK- This is an ethernet cable which you can connect to any of the yellow outlined ethernet ports on the back of your 3800/3801 HGV modem.. 

4. COMPONENT RCA-component video outputs to an HDTV. y for yellow/green, pb for blue, pr for red. These are the usual colors. 

5. S-VIDEO-High quality video output to a VCR or TV that accepts S-Video. It carries video only; you must also connect to the TV or home theater receiver for audio.

6. OPTICAL- S/PDIF audio output to a digital home theater receiver.

7. VIDEO OUT-composite RCA-type video outputs to a TV, VCR, DVD recorder, or other device.

8. AUDIO OUT-L for red and R for white.

9. TO TV (VIDEO OUT)- Coaxial output to a TV or VCR.

10. USB- USB 2.0 connector.

11. POWER +12V DC- Connector for the DC power adapter.

additional information: 

COMPOSITE vs COMPONENT RCA