With video video reproduction, viewfinder, and monitor the image is normal, find like electronic device, the mechanical system control and luminance/chrominance and head amplifier parts work is normal, can be concluded that failure in the CCD signal processing circuit. Using oscilloscope measurement signal channel and signal processing part. Along the B302 {3} Y signal channel down to push the test, the test IC316 {~ 24] {31} feet without Y signal output, and IC316 {88} to {95} feet have normal Y input signal waveform. This circuit has 128 pins, is a large-scale signal processing circuit, after careful analysis principle diagram for emergency treatment, the IC316 24} {~ {31} feet out signal output circuit board welding, signal input in each of the eight jumper welding to {88} to {95} feet, welding connection at the other end to the original 24} {~ {31] on the foot pad. For convenience of jumper wire welding, best R481 ~ R474 end in resistance welding. Check the connection is correct and electrical commissioning, work.ELnservice manual download site