Monitor does not work I suspect power adapter

google magnavox 15mf605t/17 power cord

they are readily available on line for less than $10.00

click start type cmd press enter

At command prompt type debug
you will get a - prompt where you can type the following (<enter> means press enter, not type enter*)

A <ENTER>
MOV AX,0 <ENTER>
MOV AX,CX <ENTER>
OUT 70,AL <ENTER>
MOV AX,0 <ENTER>
OUT 71,AL <ENTER>
INC CX <ENTER>
CMP CX,100 <ENTER>
JB 103 <ENTER>
INT 20 <ENTER>
<ENTER> just hit enter on this line
G <ENTER>
Q <ENTER>
Basic BIOS password - works 9.9 times out of ten hope it helps

Looks like Amazon sells them for $2.62+$6.99 shipping.
http://www.amazon.com/Adapter-Charger-Philips-Magnavox-15MF400T/dp/B006YJGKQO

Try turning off the power to the monitor and the computer, check all the cables and power it all back up again. If the monitor is still black, try plugging it into another computer or into a laptop and see if it works there. If it does work, then the problem is the video card in the computer. If it is built into the mother board, then you can disable it in the bios setup and buy a PCI or AGP video card on eBay to plug into *********** board.

The inverter board can be in the power supply inverter board combination,.you should check the power supply for bad capacitors first.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

You check the cable that's used to connect the cpu and that monitor, and the cable that's connected to the power supply. You unplug and plug it. You may have a loose connection on plugs. It works for me. Hope this helps.

press OK button for more than 10 seconds

The specs for this monitor is a 60 Watt, 12 Volt, 5 Amp power adapter. The voltage must be the same. You can always get an adapter with a higher Amperage rating, but never get one with less, as this can overheat the adapter and damage it. I was not able to locate specs on whether the voltage to the monitor is DC or AC... most are DC. If this is the case, the observe the polarity at the monitor. Power adapters have a positive and a negative... center and outer contact, Make sure that the power adapter matches that of the monitor, else it will not work.

Why do you suspect the horizontal or vert curcuits? I would suspect the HV curcuit since no display at all. Gary(Honkity Hank)