How to Fix Monitor Viewsonic Vx2235wm that NoPower?

First we open frame monitor and unplug the power board of the monitor. We observed that the normal form if the capacitor is discharged. Capacitor or capacitor with a capacitance of 25 volts to 1000uf be replaced. The power board of the monitor connected to the lamp cables are connected. Power cable to the monitor and the monitor will turn on. Monitor turns and we see no signal message. The frame on the monitor and the monitor is ready.