My monitor says "no input signal" every time I put it on. I have checked all the wires and connections and they seem fine. Any suggestions?

no input or signal means that the monitor is not receiving any signal from the CPU and if the power light is amber then and the cpu works fine then there could be a problem with the cable connecting the CPU and the monitor ...check the cable.

put a song onto play using either tape, vinyl, cd or mp3.

once playing follow the wires from the speaker that doesn't work bending it until you hear it crack or become clear if it does either of those it is the wire between the head unit and the output.

if not you can try attaching the speakers to a different head unit if it doenst work it could be the driver (the cone doesn't have to go to blow a speaker)

well why not test it on another system
DT or LT
desk top or laptop.

why connect 2 data cables at once, this is SO wrong.
only 1 at a time.

wow ,, why not test the monitor on any other PC or laptop.
see if its good or bad.?
this is the only way to find this, unless guessing works.

i got lost in your post.
try 2 machines
the post photos of what screen does bad, words never work for telling graphics./

There is no signal coming from your PC.
excuse some of the solutions as sounding dumb, but we have to explore all possibilities.

Check the power cable going into the computer
Check the power input disconnect switch on the back of the power supply and make sure it is on
If the pc is plugged into a power bar, make sure it is turned on and the breaker isn't tripped
press power on the PC and make sure the lights are coming on.

now for the solutions that may actually help.

disconnect the power from the PC
if the video is on a card, remove and re-seat the video card
hook the power back up, connect the monitor and try again.

the CMOS on the computer may need to be reset.
I hate totally clearing the CMOS, so what I usually do is remove 1 stick of ram and power up. If the system is alive again, power down, put the RAM back in and power back up.
If that doesn't work, turn the system off, put the CMOS jumper to the CLEAR position for 15 seconds, put it back to the Normal position and then power back up.

Basically, if the monitor works on your friends system but not on yours, the the problem is your system, not the monitor (assuming it isn't working fine til it gets into windows...if that's the problem, you have a driver or configuration problem)

Can you please get me the make and model of the monitor? Also did you check to see if the refresh rate of the monitor matches with that of the mac mini?

Hi,

While booting press F8 , Go to safe mode and change the screen resolution and reboot the system.

Hope this helps
Siju.D

Dont Panic it is Nothing...
Your Monitor is safe...
If it say "no Input signal" - "Check VGA cable"

it means that the Monitor is finding signals from the computer,and the cable is either not connected or unsecurely connected.

The first Polyview has a power supply problem (a short) and locks out the power until it is unplugged. You need to check the voltages inside the Monitor to determine which component/s are faulty. I hope you know electronics if not leave it to the repair shop because you have neither the skills or equipment to repair it. By the way I am not a monitor repair man but I do have 30 plus years in the electronics field.
The second monitor may have a broken wire in the cord that goes to your computer. Other internal components can cause the same simptoms your seeing. Good luck!

check the drive section also check the triger transistor, that provide power to the other section by the processing unit. check voltage & ampers before and after, check the electrolytic filters in that section. problem must be there. also check the SMD, if anyone from them is over heating.....