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Ti ■% * -Г A ^ _ _¿w^' ИИК i’ Г"7 *+ - '¿Ir^ i 4 tIp i ti \ / ü ^ ' - Д „ - V 4 / V _ Ä ^ и Al МЖ-Í M Í ^ 1 N V > t A ¿Éfe' ^ ^ ^ 4 У1 ИРЧ -u \ f \ ^ ь V /™Y M ¿ Vs! M«S * \i ^ V '»#'■ V \ y \ / í> V Л V. a, |i Í#V o i i u ^ " ^ я *- г * ** ¿to¿ V /w> \\\ / \ % ^ V /“V4 ¿ ft ^ J; f 3#% t Л Vi ¿ V4*¿ '\ v -, * .Æhk^ÉS /VV\^ft\ )¿Ái l^rlv^r^b \\ S * h jytex, ft fw j A "-j, ■áx f \\ 42 \ ЛКД к \ f™ )\^ ¿. A 4 ►\ \> \ v«v í 4 l4. t I j* РУД4 ■ЛТ ч г \\ S f \\ \y u hA/^í T\\- /‘ •ГГ Л Pi у u V * Êr* ' \4 s/ i ' V > rk <ï *i ц ^ \ iS И'S*' 5^* ^ ^ $U<*- “'"’"'Г i 'V «ц*л1-* < 1 , W I л ÿ-'V 11Щ1® ^ У*А> « ^ Z Ü Ï \ W Г. л 11*^ -tz ^ IV ^ -V* \г,— i -|:r: !tl;^ ît\V- - \\v£ Г fe »r^ р \\;^ °р. \i1í ^ ^ \\*2 \г" s: W3'' S\fe -|r.......W.....;з- ^ IV^ ^ н;д \\ гп1Ж-^^ ^ - W - - \\æ ^ ^ — 1-^ ^ «<-*• -Г' \\ •" J е г te "A\ -• *“■£ YAMAHA How to use this manual Index Yamaha EM-Mixers are equipped with features and capabilities unique among mixers in their price range. To take the best advantage of your mixer, we recommend careful reading of this Instruction Manual . . . even if you already have a good general understanding of mixers. The setups on the following pages are meant only as guidelines. We have attempted to cover many applications. It would be impossible to cover all conceivable setups, which are infinite as your own imagination. SECTION ONE Brief Operating Instructions Functional descriptions of each control, each meter, and the input/output/accessory jacks. Also, mixer specifications. SECTION TWO Introduction A general description of the EM-Mixers, their features and capabilities, and how to use them. SECTION THREE Detailed Instructions Detailed descriptions of operating procedures, control functions, jack functions, and connections to speakers and accessory equipment. SECTION FOUR Applications Detailed discussion of several applications from sound reinforcement (PA) to recording. SECTION FIVE Balanced Input Transformer Modules Installation instructions for balanced input transformer modules or Yamaha EM-150IIB, EM-200B and EM-300B. Block Diagrams Troubleshooting Warranty and Service The EM-Mixer Warranty, and what to do if you should encounter any problems. Also, a procedure to verify proper performance. SECTION ONE Brief Operating Instructions NOTE: Be sure the AC POWER switch is turned OFF when making all signal and speaker connections. FRONT PANEL A. Pan This knob feeds the input channel signal to a pair of mix buses to create the stereo program mix (Left and Right program buses). The stereo program bus then feeds the Speaker, Line, and Headphone outputs via the Master Program faders. B. Monitor 1 Send (Rev/Echo) This knob feeds the input signal to the mix bus which, in turn, feeds the Monitor 1 output. The same bus also drives the built-in reverb or external reverb/echo (effects) units; the send is post-EQ and fader. C. Monitor 2 Send This knob feeds a pre-EQ and prefader signal to a second monitor mix bus which, in turn, feeds the Monitor 2 output. D. High and Low EQ Controls These continuously adjustable knobs allow for ±15dB of bass and treble equalization on each input channel. Response' is "fiat" at center position. E. Input Level Selector Switch This switch adjusts the input channel's sensitivity for best results with different input sources. For Models EM-10011 and EM-150IIB this switch is a 3-position slide switch (Line/lnstr/Mic). On the EM-200B and EM-300B, the level switch is a 5-position rotary knob. F. Channel Fader On Models EM-10011 and EM-150IIB rotary faders set the mix level of each channel. Models EM-200B and EM-300B have smooth linear slide faders that also provide a good visual indication of the mix-level for each channel. G. VU Meters Two meters indicate the average speaker power output level. On the EM-300B, an additional set of meters indicates the average output level of the two Monitor mix buses. The meters are illuminated when AC POWER is ON. 2 M N H. Graphic Equalizer (Except on EM-10011) Two banks of linear slide controls independently vary the frequency response of the Left and Right Program outputs. There are seven G-EQ controls per channel on the EM-150IIB and nine controls per channel on the EM-200B and EM-300B. Center detents mark the "flat" position (no EQ effect) for each control. I. Aux Pan (Models EM-200B and EM-300B only) These controls position the Aux 1 and Aux 2 Input signals Left-to-Right on the stereo program bus. J. Master Reverb/Echo This control sets the level at which the returning Reverb/Echo signal (or the reverb from the built-in spring) is mixed into the stereo program bus. (The mono signal is applied equally to the Left and Right program mix buses and is thus a "center" effects return.) If the Echo Return jack is used as an auxiliary monaural line input, Master Reverb/Echo adjusts the, level of the "auxiliary" input source. K. Headphones Jack This TRS (tip-ring-s...

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