User manual TECHNICS SU-V5 schematics

[. . . ] The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED. * This applies only to products distributed by TECHNICS KEMBLE MUSIC (U. K. ) LTD. Precautions 1. Avoid excessive heat, humidity, dust and vibration. Keep the unit away from locations where it is likely to be exposed to high temperatures or humidity -- such as near radiators, stoves, etc. [. . . ] Never use solvents such as benzine or thinner to clean the unit. Make sure that the power supply voltage specified on the rear panel matches your local AC mains supply. Also make sure that the AC mains supply can deliver more than enough current to handle all equipment used in your system. Contents Controls and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Modes: STEREO/PARALLEL/BRIDGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 SPEAKER IMPEDANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Caution for Speaker Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Mounting in an EIA standard rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Mounting four or fewer amps in an open-backed rack . . . . . . . . . Channel A input is used in Bridge and Parallel mode. · XLR-3-31 type connectors Pin 1­ground, pin 2­hot (+), and pin 3 cold (-). Hot 4 SPEAKERS terminals For polarity in each mode, refer to the following diagram. · STEREO, PARALLEL mode CHANNEL B SPEAKERS CHANNEL A BRIDGE STEREO 2 3 1 Ground · BRIDGE mode CHANNEL B Cold SPEAKERS CHANNEL A BRIDGE STEREO · Barrier strip Hot (+), Cold (-) and Ground (G). 3 STEREO/BRIDGE/PARALLEL switch This slide switch is used to set the amplifier operating mode: STEREO, BRIDGE or PARALLEL. For details on the functionality of each mode, refer to "Modes" on page 4. In BRIDGE mode, the (-) terminals of CHANNELS A and B are not used. The minimum impedance for the connected speaker system is specified in "Speaker Impedance" on page 4. 5 GND terminals This is the grounding screw terminal. If hum or noise occurs, ground (earth) the unit via this jack, or try connecting it to the chassis of the mixer or preamp, etc. 3 s Modes: STEREO/PARALLEL/BRIDGE STEREO mode In this mode, channels A and B operate independently (as a conventional stereo amp). The CHANNEL A input signal will be output from the CHANNEL A output terminals, and the CHANNEL B input signal will be output from the CHANNEL B output terminals. PARALLEL mode In this mode, the CHANNEL A input signal will be output from the output terminals of both channels A and B. The CHANNEL B input terminals is not used. [. . . ] Reattach the protective cover over the speaker terminals. 5 Rack Mounting s Mounting in an EIA standard rack If multiple high-power amp units are mounted in a rack with poor ventilation, the heat from the amps will cause the interior of the amp to become very hot, causing the performance of the amps to be impaired. When mounting amps in a rack, you must make provision for ventilation so that the heat can escape. When mounting amps in a rack, please attach ventilation panels above and below the amp to allow air circulation. When doing so, it is necessary for 35% or more of the entire surface area of a 1U size panel to be open. [. . . ]