故障现象:开机摄像或停止状态,寻像器和监视器中的图像都失真严重,画面上有闪烁的横细线。画面为“负像”,似照片底片。分析与检修:为缩小和正确判断故障范围,首先放入寻像带放像寻像器和监视器图像正常。说明电子寻像器,机械系统控制及亮度/色度和磁头放大器几部分工作正常。可以断定故障出在CCD信号处理电路。用示波器测VJB23146—7板插口B302①、②、③脚 Symptom: Start-up camera or stop state, the viewfinder and monitor images are distorted, there are blinking horizontal thin lines on the screen. The picture is “negative”, like a photo film. Analysis and Overhaul: To reduce and correctly determine the fault range, first put the finder into the viewfinder and the monitor image is normal. Description electronic viewfinder, mechanical system control and brightness / chrominance and head amplifier parts are working properly. Can determine the fault in the CCD signal processing circuit. VJB23146-7 with a oscilloscope board socket B302 ①, ②, ③ feet