When I rotate the volume control knob, it either does nothing, adjusts the volume appropriately, or in the opposite direction[ie louder when turning in the softer direction, or softer when turning in louder direction. It is erratic.
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If there isn't a physical knob or other "manual" adjustment on the unit itself, for adjusting a parameter available on the remote (such as volume), then the remote is the only way, and you'll need it to fully operate your DVD player.
If it's any consolation, there are many other "remote-dependent" devices made today, unlike yesterday, when the opposite was the case, where the remote controlled only a portion of available functions, and all of them were manually available on the unit.
1) Turn your speakers off. 2) While blowing a can of compressed air into the switch, twist the knob up and down a bunch of times. 3) Repeat step 2 for roughly 10 minutes, blowing the dust out of the volume controller.
Hello... sorry you are having a problem with this unit. Here is the procedure to fix your problem. Press and hold the "SEL" button for approximately 2-3 seconds. You will enter the menu section. Press the seek button below the volume knob ">>>" until it reads "Clock-H". Rotate the volume knob to adjust the hour. Press the ">>>" button again and "Clock-M" should appear. Rotate the knob to adjust the minutes. Hit SEL button to exit the menu when you finish. I hope this helped! 20 year car audio/video installer Bay manager
The clock uses a 12-hour digital indication...... Press and hold the select button...... The setup display appears...... Press the select button repeatedly until “CLOCK-ADJ” appears...... Press (DSPL...... The hour indication flashes...... Rotate the volume control dial to set the hour and minute...... To move the digital indication, press (DSPL...... Press the select button...... The setup is complete and the clock starts......
Press and hold 'SEL' press down arrow until CLOCK H is displayed rotate Volume knob to adjust press down arrow once to display CLOCK M rotate Volume knob to adjust press 'SEL' to finish. Reference pages 6 and 10 in this link to your JVC KD-G120 Instructions Manual. http://resources.jvc.com/Resources/00/00/91/GET0330-001A.pdf
You can CLEAN / LUBRICATEthe volume control know with a CONTACT/CONTROL cleaner, I use a product from Radio Shack, this works wonders on drum type electo mechanical devices which are basically volume control knobs, easy to do, just remove the round knob and spray into the openings with the small tube attached, and rotate in both directions, be sure to unplug the unit first, on a few occasions it is best to remove the front panel to acheive better coverage to the rheostat type volume body, anyway it always cures the crackling and distorting sound, I would give this a try before replacing the part.
you might have a "dirty" volume control - with the power off, try twisting the volume control full to the left, full to the right, repeat several times - if this improves the situation then a quick shot of contact cleaner spray into the volume control might fix it for good.
This advice should work for potentiometer-type controls which consist of a metal wiper moving over an arc of carbon-coated material - dirt builds up under the wiper, preventing good contact.
Newer controls using an optical encoder will not be fixed by this method. If your amp volume normally adjusts in "steps" that you can hear, as opposed to continuously and smoothly as you rotate(d) the knob, then you have an encoder control.
It sounds like your volume control pot has dust in it.You need to remove your cover from the receiver,spray pure denatured alcohol in the small openings in the back of you volume control dial and turn the knob all the way up and down several times and then blow low compressed air threw the same small openings while rotating your dial.That should fix your problem.Be sure you unplug your receiver before performing this procedure.