Question about PC Desktops
Here is my dilemma: SOUND and VOLUME on SPEAKERS
I have a MPC ClientPro 414 all-in-one with a Lenovo ThinkPad UltraNav SK-8845 keyboard running on Windows XP.
I cannot seem to get the internal speakers working even though I can change the slider position using the function keys.
I cannot get sound from external speakers (plugged into the lime green female thingie).
I CAN get a low volume sound from external speakers with BOOSTER that plugs into the wall when plugged into the lime green plug thingie. It is still VERY low and almost inaudible.
I am thinking of giving up my search for a solution without putting money into it by buying a StarTech USB 2.0 Audio Adapter 7.1 and plugging that into my usb slot and then plugging my external speakers in there. Will that work to get an audible sound on this thing???
Thanks in advance.
I have extensive experience with the CP414 (I used to work for the company that supplied it to MPC). It sounds to me like you have a broken volume knob. On the bottom edge of the LCD panel, just to the right of the MPC logo, there should be a volume control knob. This knob should only be able to turn through about 270 degrees of rotation. If it rotates freely, it is broken. These tend to break if they are hit from below. (This can happen during assembly at the MPC factory -- if a technician props the LCD panel up on its bottom edge, it will damage the volume knob.)
There are a few solutions:
#1: This is probably the easiest one to accomplish. Remove the cable door on the back of the system (it is the one at the bottom on the back -- held in by one screw). Under this door there are anywhere from 5-6 cables plugged into the motherboard. One of these is a connector with 30 pins arranged in two rows of 15. The cable plugged into this connector probably has pink wires. Short pins 7-8 on this connector (they should be across from each other, but only pins 1, 2, 29, and 30 are labeled). To short the pins, insert a thin wire into the back side of the connector so that it makes contact with the exposed pins. You could also use a resistor to do the trick - 10KOhms will give you no volume while 0Ohms will give you full volume. Something like 2.5K could give you a nice middle ground.
#2: Replace the volume knob. The part number for the knob is XV0107GPV2NB10K-3824. Good luck finding someone who will sell you one of these.
#3: Disassemble the LCD panel (it's not that hard if you have a #1 phillips screw driver) and short the volume control knob pins 2-3. This will disable the volume control completely, but it will be stuck on maximum volume. This would be best done by soldering a wire between those two pins.
Options 1 and 3 will disable the hardware volume control, but the software volume control in Windows will still work fine.
Posted on Jul 01, 2009
It should....depending on the problem you have now. Are you sure you have checked the sound properties and device manager to be sure they are not turned off or there are no conflicting settings selected? If so, then you probably have a defective sound card. Are the inputs for your sound on the back of the computer in a horizontal or vertical row??? If vertical, that means on-board audio. If horizontal, then it is a pci sound card. The pci card is pretty easily replaced, for about $20 if you do it yourself. If it is onboard, then you will have to research your motherboard before installing the card because sometimes you have to adjust a jumper setting on the motherboard in order to disable the on-board audio. In any case, the usb adaptor should bypass the on-board with software. Good luck!
Posted on Mar 08, 2009
Posted on Mar 08, 2009
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