电源故障,急盼请高手支招.

一进口电源,输入230V AC,额定输出150V DC(0.15A).
现在输出端测得电压为220V DC.设备无法正常工作.
请教各位高手如何修复?感谢帮助. 500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/29/1115393687.gif');}" onmousewheel="return imgzoom(this);">500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/29/1115393848.gif');}" onmousewheel="return imgzoom(this);">