S6406: Rew Skip switchS6407: Forward Skip switchS6408: Open/ Close switchS6409: Power switchS6410: Remaster switchS6411: Sequential switchS9001: Loading switch- The voltage value and waveforms are the reference voltage of thisunit measured by DC electronic voltmeter (high impedance) andoscilloscope on the basis of chassis. Accordingly, there may arisesome error in voltage values and waveforms depending upon theinternal impedance of the tester or the measuring unit.- Importance safety notice :Components identified by mark have special characteristicsimportant for safety. Furthermore, special parts which havepurposes of fire-retardant (resistors), high-quality sound(capacitors), low-noise (resistors), etc. are used. When replacingany of components, be sure to use only manufacturer's specifiedparts shown in the parts list.Caution !IC, LSI and VLSI are sensitive to static electricity.Secondary trouble can be prevented by taking care during repair.- Cover the parts boxes made of plastics with aluminium foil.- Put a conductive mat on the work table.- Ground the soldering iron.- Do not touch the pins of IC, LSI or VLSI with fingers directly.58