The machine cover OPEN, electricity according to the "on/off OPEN/CLOSE" button, find plate warehouse not action, this kind of failure is more motor mechanical system or load caused by driving circuit has a problem. 6EUservice manual download site
 6EUservice manual download site
Clamping support plate to unload first, remove the disc, then put up the machine, the machine mechanical rotating at the bottom of the hole with a screwdriver or tweezers in the rotary CAM parts, from "closed position" dial to "open position" box plate, can take out the box set, in order to facilitate maintenance. Then check the mechanical part, trouble-free, so doubt loading motor drive circuit has a problem. The driver circuit is integrated block IC2051 (AN8812K) (see figure 1). Inside it has four groups of independent drive circuit, respectively is: load motor, transmission, focusing coil, tracking coil driver circuit. And (4) it (3) the feet for loading motor driving voltage output, (22) feet for loading motor control signal input end, (1), (12), (13) for power supply side foot (see below) associated circuits. Measurement (1), (12), (13) the foot power supply voltage is normal, press the "on/off" button, and at the same time control signal as the input voltage measurement (22) foot, found that only about 0.1 v (normal should be 4.9 v), the control signal voltage aberration. First check IC2051 peripheral components (22) foot, found that the capacitance C2056 (0.01 uF) has serious leakage, similar to breakdown state. After replacement on the same specification capacitor C2056, troubleshooting.6EUservice manual download site