User manual PIONEER VSX-819H-K -

[. . . ] RISK OF ELECTRIC SHOCK DO NOT OPEN The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Replacement and mounting of an AC plug on the power supply cord of this unit should be performed only by qualified service personnel. This appliance is supplied with a moulded three pin mains plug for your safety and convenience. Should the fuse need to be replaced, please ensure that the replacement fuse has a rating of 10 amps and that it is approved by ASTA or BSI to BS1362. [. . . ] 1 You will hear sources according to the number of channels in the signal. ⷠPURE DIRECT ­ Analog and PCM sources are heard without any digital processing. While listening to a source, press RECEIVER, then press EQ to switch the Acoustic Calibration EQ on or off. The MCACC indicator on the front panel lights when Acoustic Calibration EQ is active. When audio data is removed during the compression process, sound quality often suffers from an uneven sound image. The Sound Retriever feature employs new DSP technology that helps bring CD quality sound back to compressed 2-channel audio by restoring sound pressure and smoothing jagged artifacts left over after compression. Using surround back channel processing You can have the receiver automatically use 6. 1 encoded sources (for example, Dolby Digital EX or DTS-ES), or you can choose to always use 6. 1 encoded sources, a surround back channel will be generated, but the material may sound better in the 5. 1 format for which it was originally encoded (in which case, you can simply switch surround back channel processing off). 2 There are cases where a brief noise is heard before playback of sources other than PCM. 4 You can't use Acoustic Calibration EQ with MULTI IN or Stream Direct mode and it has no effect with headphones. Listening to your system 1-channel surround system, audio signals that have undergone matrix decoding processing through surround back channel processing to which the Up Mix function is added are output from the surround back speakers. 1-channel surround system with surround speakers placed directly at the sides of the listening position, the surround sound of 5. 1-channel sources is heard from the side. The Up Mix function mixes the sound of the surround speakers with the surround back speakers so that the surround sound is heard from diagonally to the rear as it should be. 1 · Using the Up Mix function is effective when the speakers in the 7. 1-channel surround system are set up as recommended in the example on page 24. ⷠDepending on the positions of the speakers and the sound source, in some cases it may not be possible to achieve good results. Press RECEIVER, then press SB CH repeatedly to cycle the surround back channel options. Each press cycles through the options as follows: · sB CH ON ­ Matrix decoding processing for Generating the surround back component from the surround component is turned on. SB CH AUTO ­ Matrix decoding processing for generating the surround back component from the surround component is switched automatically. [. . . ] 2 While holding down the BAND button, press and hold the STANDBY/ON button for about two seconds. Use a polishing cloth or dry cloth to wipe off dust and dirt. ⷠWhen the surface is dirty, wipe with a soft cloth dipped in some neutral cleanser diluted five or six times with water, and wrung out well, and then wipe again with a dry cloth. Never use thinners, benzine, insecticide sprays or other chemicals on or near this unit, since these will corrode the surface. [. . . ]