According to the symptom, Dim table as the focus and zoom of the image caused by the motor does not turn, the focus should check the motor and the motor control circuit. First check normal, indicating fault in the motor control circuit. Figure 2 shows the focus and the zoom motor control circuit.

As can be seen from the diagram, IC2003 is focusing and zoom Motors control driver circuit, 4, 6 and 9, 11 feet for the motor drive end. Focus and zoom control signals from the IC2006D/A converter of 12, 13, 18, 19 feet, the Q2018~2021 were added to IC2003 2, 3 and 12 or 13 feet. At the time of control, master IC2003 serial clock signal (CLK) and serial data signals (DA-TA) were sent to IC200617, 16 foot, micro-start signal sent to IC2006 15 feet by 43 feet, the entire motor control.

Because both motors are not actions, you should first check for IC2001 control circuit. Under static and dynamic conditions, namely voltage measured on each foot finds, except a power supply 14 pin 12V,7 to 0V, 8 foot, other foot is 1.4V IC2003 exception. To differentiate between exceptions are control signals or IC2003 itself is damaged, continue to measure Q2018~Q2021 the base found the high level changes, four transistors and normal IC2003 judgment for motor-driven control circuit (TA7979P) is corrupted, using the same model and circuit troubleshooting after replacement.