Zen v Black screen even when is on

As I seem to recall the very first version was powered by the computer and as such may not be compatible with your Mac. I may be thinking of Apple's Clear speakers though? Do your HK Soundsticks have a power adapter or AC cord?

First - re-seat the hard disk and reboot the computer. If the computer does not boot up then reboot and go into the BIOS configuration to see if the BIOS detects the hard drive. If it doesn't detect the hard drive then it could be faulty. . Then the hard drive needs to be replaced in the computer/laptop, Windows installed and the computer or laptop's device drivers plus your programs etc. to get a functioning computer/laptop again.

I just had the same problem not to long ago and it can be a couple things.... If nothing comes on the screen and I mean nothing the monitor its broke even if the monitor isn't connected to anything but plug in it'll have a screen pop up if that doesn't even happen ya monitor is broke but if you do have messages pop up then good possible that its either the cord has a short or not plug in properly or your graph-ix card with can be found anywhere on the internet or any computer store I got mine at best buy for like $50-$60 and they do have better that run from $175-375 depends on the computer you can go to google and put in the type of computer and what graphix card will work for it sorry this is soo long hope it helps not a expert just already went through that Good Luck

First - re-seat the harddisk and reboot the computer. If the computer does not boot up then reboot andgo into the BIOS configuration to see if the BIOS detects the hard drive. If itdoesn't detect the hard drive then it could be faulty.
Then the hard drive needsto be replaced in the computer/laptop, Windows installed and the computer orlaptop's device drivers plus your programs etc. to get a functioningcomputer/laptop again.

• Nothing is more annoying than a monitor that refuses to turn on. Make sure your Acer monitor is plugged in to a functioning outlet. If it's plugged into a power strip, try replacing it with a new one or moving the plug to a different outlet. Ensure that both ends of the power cable are plugged in firmly and securely, and that the connection to the monitor is not loose.
  

Cable Issues

• Your Acer LCD monitor will usually accept DVI and VGA inputs. If you have an older computer, a VGA cable should work fine. If it doesn't have a VGA port, you'll need to obtain an inexpensive DVI to VGA adapter at your local computer store. A DVI cable, however, is compatible with most modern computers and offers superior picture quality over VGA. Make sure you're using the cable that's compatible with your system, and that you have the proper conversion adapter, if necessary.
  

First - re-seat the harddisk and reboot the computer. If the computer does not boot up then reboot andgo into the BIOS configuration to see if the BIOS detects the hard drive. If itdoesn't detect the hard drive then it could be faulty.Then the hard drive needsto be replaced in the computer/laptop, Windows installed and the computer orlaptop's device drivers plus your programs etc. to get a functioningcomputer/laptop again.

A quick fix for most communication errors can be achieved by resetting the printer and/or rebooting the PC. Simply disconnect the printer from your computer (if USB connected)> reboot your pc > unplug and re-plug the printer into the power source to reset it. When the printer turns on, reconnect it to your computer (if USB connected). Then try to print again once the computer fully recognizes the USB connection or when the WiFi light on the printer turns solid green (if WiFi connected.).

If that doesn't help, try the steps below:

1. Disconnect the USB cable connecting the printer from your computer.
2. On your computer, go to Control Panel > Printers and Faxes.
3. Delete the Lexmark print object.
4. Reboot computer.
5. Re-brick your printer by pulling out the power supply - black box where the power cord is plugged into on the back of the printer, and re-plug after 30 seconds.
6. When the printer turns on, reconnect it to the computer.
7. Wait until your computer fully recognizes the USB connection. To check, go to Control Panel > Printers and Faxes. If you see a new Lexmark print object in the list, try to print a document to verify that the problem is fixed.

You may also try to update your printer driver by visiting the Lexmark website at http://bit.ly/nJ7AgN. Select your operating system, download and execute the file.

i'd recommend doing a Factory Reset, which is located in the User menu.

You can't even get into the BIOS. Hard drive failure?
Here's what the manual say's about black screen.

Verify that: The monitor cable is securely attached to the rear of the monitor and to the rear of the computer.
The monitor power cord is plugged into the monitor and into a working electrical outlet.
The monitor is turned on and the brightness and contrast controls are set correctly.
The voltage is set to the correct setting for your country.
The monitor signal cable is securely connected to the monitor and to the monitor connector on the computer
.Note: If your computer has two monitor connectors, verify that your monitor is connected to the one in the AGP option connector rather than the one in the rear of the system board.

If you can check the monitor by using another monitor.
I suspect hard drive failure. Keep me informed on what you tried and I'll keep checking to come up with solution.

you could have a bad charging cord and also you can try to turn the hold button on and off that sometimes works