Speakers need power scource

Unhook all the speakers and power it on again. IF it does NOT fail with that message, you have a bad speaker. IF it does fail then you need to troubleshoot it internally to see what has failed inside the amp.

I just purchased a Dell XPS 8500 with Windows 8 and decided to keep using my old Harmon Kardon HK 206 speakers because I'm quite satisfied with these speakers. When I hooked them to my new PC, Windows 8 recognized them right away. The speakers work great on my new PC. Try going to the Control Panel and see if your speakers were recognized. (On my PC they're referred to as "Speakers (Realtek High Definition Audio). That's due to the default drivers in Windows 8. As long as you see speakers in the control panel, you should be OK. In that case you should check your connections. If you don't see speakers in the control panel, go back one screen and select add a device and let Windows 8 scan for any device that it hadn't recognized before.

This model Canon MX700 cannot scan slides.
A flat bed scanner that can scan slides and negatives has a light scource that shines through the slide and negative fand is detected by the scanner sensor.
I suggest you purchase a slide scanner, it will be cheaper that getting a new flat bed scanner with slide capability.

sound dead,
no OS stated, is this XP:?
no PC stated, just a screen monitor F1903 (old)
to have sound , there is no need for modems or the internet for sound. ever.
I guess this is a desk top PC, yes some use external monitors on laptops for good reasons, (its bigger)
so cant tell what you have there but guess some PC desktop
is it a HP desktop, ?

my guess With select models, one set of Harmon Kardon speakers with a DC cable and a DC power adapter.

if that is what is connected?, (is it?) then the DC pack is not plugged in, the DC pack power the speaker amp, in the speaker box where ever it resides. has
no power applied there will be , no sound if true.

ive no idea at all what you have there,
you need to say or show photos.?

or ask a geek to fix it. (one who hates chickens)

no power with m Harmon kardon 695-01 sound system , the green light doesnot come on

It is a headphone jack in the monitor, it cannot power your speakers. Plug them into the back of the computer.

Double check the back of the computer there should be audio card connections there!

its not that expensive for a power cord. they are running on 12v so you go and buy a 12v power supply with a jack that fits the speakers or you can just find a power supply at home if you have one that is 12v

This is a defective unit. bring it back to best buy and have them replace it.

Oh well, buy new ones. What are harmon kardon sticks anyway?