I hear noises when DD-10 is turned on.. even without signal to i

Hummmm... the YELLOW RCA should be your VIDEO cable and have VIDEO signals.

Are you SURE your TV is set to the CORRECT "INPUT" SETTING? And DO YOU hear and audio>?

Anthony

Unplug the TV., and all cables and wires. Push the on-off button on the TV and hold it for 60 seconds then try it again.

Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

Hi Friend,
Please folliow the below steps one by one

Step 1: Turn on the TV

Step 2: Hold the ON/OFF Button for 10 to 20 Secs

Step 3:Without taking the hand from the ON/OFF button unplug the power cable connected to the wall outlet from the TV

Step 4:Without taking the hand from the ON/OFF button put the power cable back to the outlet

Step 5:Now take the hand from the ON/OFF Button and try to turn it ON again and check

If still you are having the same problem then please check the resolution configured in the Screen,try to reduce the Colour and the brightness of the TV

Even after that you are facing the same issue please check with the Display Card in the TV,

If you have any Clarification please feel free to contact us

Regards,
Ayyasam

Usually this noise is the result of a bad cable. Unplug to see if noise goes away. If so, try different cables.Has solved that problem for me several times over the years.

U need to install a alternator noise filter on the power supply lead from the car to the amplifier, u can buy these at any car audio shop or Radio Shack

Try this. While with the engine running and radio on, while you hear the noise, disconnect the antenna wire from the radio. (DO NOT KEY IT).

If the noise is gone, then the noise is coming in from the antenna. A new location may be needed.

If the noise is still there then its coming in from the power line. You need to get a ground loop isolator. Make sure its not one for RCA cables. You need one for the power line. It connects to your power source, and then your radio connects to it. this will take most of the noise out.

sounds like you have a bad ground going to your rca's. try running a wire from ground to the shield of your rcas and see if the noise goes away.

You must break it down through a process of eliminating items. With the system running unplug the RCAs from the amp. Do you still hear the noise? Try turning the gain down on the amp a bit and increasing the subwoofer level on the head unit instead. Make sure you have a low pass crossover set (probably below 80Hz).
Does the noise change with engine RPM?
Try a different RCA cable. I find that most times noise filters will make the problem worse not better. If none of the above things work, check that the grounds within the car are good, battery to frame, to engine block and chassis. Sometimes a bad vehicle ground is the cause. If all else fails, hook it up to someone else's system and see how it works.

That high pitched noise you're hearing is the power supply telling you that it has too much of a load on it and lowered its operating frequency which in effect cuts its output way down! Normally you don't hear any thing since the power supply operates at a frequency that's beyond human hearing. In an RCA this indicates more than likely that your horizontal output transistor is shorted and this short was caused by the flyback transformer shorting. This is a common happening with RCA's You'd need to take to a tv shop and have it checked out. Stargazer