WILL NOT INCREASE USING CONTROL BUTTON BUT WILL DECREASE?

1:-Go into audio menu to see if the speaker has been turned off .
2:- When you press +or -- vol ,do you see vol being displayed on the screen .
3:- Check the av connection for proper connection .

Jess, do a wiggle test on cables when you have volume, wiggle wires one at a time to see if sound goes out or static.
press the helpful button

After looking at the manual, there doesn't appear to be a reset button. If the unit is not turning on, try hitting the power button. A last resort option is to disconnect power from the unit by removing the unit from the dash and disconnecting the wiring harness that goes into the back of the unit.

hey ur radio is locked u have to send it in, they charge $40 to unlock it, there in NY, and a $10 shipping fee. You get the radio right back in a day they said. there # is 800-448-0944 its called united radio. Hey I also need some help. I just got the radio yesterday and when i plugged it said, check map disc. They said i have to insert the map disc, would u happen to have one?? my email is [email protected], PLease Help if u can

I had the same issue. You can use the on screen volume buttons on screen to stop issue and don't use the physical buttons anymore. Watch out about a month after the volume problem started all physical buttons on my DXN7120 stopped working. There are a few reports of this online, I have not found a fix yet.

press the vol button then press next song button to increase volume and the previous song button to decrease volume. Then, press vol again to exit volume setting mode.

See page 17, diagram 4
http://www.craigelectronics.com/manuals/CMP168C-IB-E001.pdf

I know a guy who burned me a copy for 75.00 email him at [email protected] and it worked for me.

VOLUME
While talking, press the VOLUME buttons (left and right
arrows) to control the volume of the handset's earpiece.
There are four volume levels. Press the right arrow (+)
button to increase the volume level, and press the left
arrow (-) button to decrease. VOL 1 is the lowest level and
VOL 4 is the loudest.

for avn 5435 on the left:press menu and cont ant the same time, while holding them down press menu on the right 5 times

a menu will appear and ask you for a code. you have to call 800-233-2216 and pay $25 for the code. you will have to explain where you bought your eclipse and or know the name of the original owner. if it doesnt match they will not give it to you