The failure of the two possible reasons: one is mechanical does not reach the designated position; Second, the circuits have poor contact. Dufservice manual download site
In the car down the lid of commissioning, found on most cannot read disk, CD does not rotate, but as long as put heart machine set is to read every time. Down the boot when the heart is connected to the bottom cover on PCB wiring, found that there are several bending, suspect that this line is poor contact. The line, a total of 13, it is difficult to buy, look at it the same as the 16 line of line spacing, trial 16 line after commissioning, connected in good condition, each read disk is successful, that failure is caused by a row of line contact is not good.Dufservice manual download site