Fault location should be in the CCD imaging section and related circuit. Normal playback and output, the preprocessing circuit to the output circuit and PULS circuit work normal. Comparison of R, G, B three output signals with an oscilloscope waveform check, R signal is not found by measuring IC504 oscilloscope waveform output; (22) pin R signal output end (24 feet), G signal output, (30) pin B signal output, the output waveform was found R and other two different IC504 (4); anti foot G signal input terminal (68 feet), R (51) signal input, signal input pin B (68 feet), found that the waveform is not normal, IC506 was observed with an oscilloscope (8 feet), IC503 (8 feet), IC502 (8) compared to three feet, the CCD output waveform, IC503 (8) and the other two feet (8 feet) IC waveform consistent, the problem arises in IC502 (8) IC504 (68) foot to foot between the circuit. Check the IC504 (68) pin with a meter to check the external resistance and the transistor Q502, found that the damage has been damaged. After the removal of Q502, Q503, Q502, Q501 base waveform is consistent, that is, Q502 damage caused by IC504 (68) no R signal input, and then (no R signal output. After the replacement of Q502, IC504 (68) R signal is measured, (4) the G signal is in line with (51) foot B signal; IC504 (30) B, (22) R, (24) G output is normal. Try to shoot the image, the color is bright, the indicator is normal, the machine is repaired. Fruit CCD cable apart, machine is no longer protected that CCD is damaged, only, to replace the whole CCD components, and shall inform the customer about damage prevented CCD method such as obstacle light, flash, etc..