User manual YAMAHA VXC4W

[. . . ] These precautions include, but are not limited to, the following: Do not open • This device contains no user-serviceable parts. Do not open the device or attempt to disassemble the internal parts or modify them in any way. If it should appear to be malfunctioning, discontinue use immediately and have it inspected by qualified Yamaha service personnel. Water warning • Do not expose the device to rain, use it near water or in damp or wet conditions, or place on it any containers (such as vases, bottles or glasses) containing liquids which might spill into any openings. [. . . ] - Use the required tools to install the device. - Inspect the device periodically. *1: IEC shaped pink noise with 6 dB crest factor. *2: Half-space (2π) *3: Calculated based on power rating and sensitivity, exclusive of power compression. DIMENSIONS Unit: mm VXC4/VXC4W O-ring 195 182 Connections • Before connecting the device to a power amplifier, turn off the power for all devices. Before turning the power on or off for all devices, set all volume levels to minimum. • Use only speaker cables for connecting speakers to the speaker jacks. Use of other types of cables may result in fire. 243 164 85 Ø243 Ø183 Maintenance • Do not wipe the outer packaging with benzine, thinner, or synthetic detergent and do not use electrical contact cleaner. These may damage the outer packaging and dissolve the parts. 225 ● About This Manual The illustrations as shown in this manual are for instructional purposes only, and may appear somewhat different from those on your device. Yamaha cannot be held responsible for damage caused by improper use or modifications to the device. 225 Tile Rail 608 38 644 32 28 INSTALLING THE SPEAKERS Install the speakers onto the ceiling with the supplied hardware. Ensure that the strength of the ceiling rail is sufficiently strong. Pre-installation (Preparation of the Cable) Use stranded wire for cables attached to the Euroblock connector. Strip their insulation as shown in the figure and connect them. About 7 mm (0. 3 in. ) There are two acceptable wiring methods. CAUTION When connecting with low impedance, take note of the combined resistance. Using Loop-Through Terminals For this method, cables are connected from terminals 1 and 4 to the subsequent speaker. If the Euroblock connector is disconnected from a speaker, all subsequent speakers will not work. This can be useful to identify which speaker has a problem. 7 Hold the cable in the strain relief clamp, then tighten screws A and B. When all the Anti-Drop tabs cross over the O-ring, the speaker is held temporarily. You can release your hands from the speaker. NOTE Do not plate stranded wires by solder. [. . . ] 2 Loosen the screw at the right of the terminal cover to open the terminal cover and remove the Euroblock connector. Speaker 5 SET THE LINE VOLTAGE/IMPEDANCE AND POWER Select the line voltage/impedance (100V/70V/8Ω) and power tap for 100V/ 70V line distributed system, by rotating the tap selector switch on the front side of the speaker with a flat-blade screwdriver. 4 Plug the connected Euroblock connector into the socket in the speaker. Euroblock connector CAUTION The “X” position should not be selected. The 8Ω position should be selected for 8Ω audio systems only. If the setting is incorrect, it may cause malfunction of the speaker and amplifier. Terminal cover 5 Loosen the screw A of the strain relief clamp. [. . . ]