Manual do usuário TOA Electronics M-243

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OPERATING INSTRUCTIONS
STEREO MIXER M-243
THE LIGHTNING FLASH WITH
ARROWHEAD WITHIN A TRIANGLE IS
INTENDED TO TELL THE USER THAT
PARTS INSIDE THE PRODUCT ARE A
CAUTION
RISK OF ELECTRIC SHOCK TO
TO REDUCE THE RISK OF ELECTRICAL
PERSONS.
SHOCK, DO NOT REMOVE COVER.
NO USER SERVICEABLE PARTS INSIDE.
THE EXCLAMATION POINT WITHIN A
REFER SERVICING TO QUALIFIED
TRIANGLE IS INTENDED TO TELL THE
SERVICE PERSONNEL.
USER THAT IMPORTANT OPERATING
AND SERVICING INSTRUCTIONS ARE
IN THE PAPERS WITH THE APPLIA

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1. HANDLING PRECAUTIONS Operating voltage range is AC mains ±10% (50/60Hz). Keep corrosive chemicals and beverages away from the unit as they may be spilt. When any irregularity is found, be sure to contact your nearest TOA dealer. Make no further attempt to use the unit to avoid electrical shocks. 2. GENERAL DESCRIPTION The TOA M-243 is a 19" rack mountable (1 unit size) stereo mixer that comes with two monaural inputs, four stereo inputs, one stereo output and two monaural outputs. 3. FEATURES

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4. NOMENCLATURE AND FUNCTIONS [Front Panel] Input level controls [1-6] (1-2 : Monaural input, Equalizer controls [EQ : LOW, HIGH] 3-6 : Stereo input) These controls adjust stereo output signal tone. These controls adjust the input level of each channel. LOW : Low frequency adjustment (20Hz, ±15dB shelving) Assign buttons [ST, 1, 2] HIGH : High frequency adjustment These buttons select the output to which the (20kHz, ±15dB shelving) post-input level control signals are delivered. Stereo output le

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[Rear Panel] For technical details of each input and output, refer to the section "8. SPECIFICATIONS". Monaural input terminals (1,2) [MIC, LINE] Select either MIC or LINE for connection. If both are connected, LINE input takes precedence. Stereo input jacks (3-6) [L , R] Only CH6 RCA jacks are connected in parallel with phone jacks. Stereo sub-input terminals [SUB IN STEREO L / M, R] Signals from these terminals are assigned to stereo output buses that go to the stereo output. Connecting only "

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5. INTERNAL SWITCH SETTINGS [CAUTION] THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL ONLY. TO AVOID ELECTRIC SHOCK DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO. REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL The M-243 mixer enables the following functions by setting internal switches. (1) [PAD switch] Setting this switch to IN position will place a pad (20dB) in the monaural input (MIC input). (2) [HPF

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6. BLOCK AND LEVEL DIAGRAM 7. DIMENSIONAL DIAGRAM 6

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8. SPECIFICATIONS Inputs and Outputs Nomenclature Rated level Maximum level Impedance Connector type XLR TYPE MIC - 60 dB* - 30 dB* CH1, CH2 (MONO MIC (PAD) -40dB* - 10dB* (ELECTRICAL BAL) INPUT) LINE - 10 dB* PHONE (UNBAL) — RCA PIN (UNBAL) CH3~CH6 - 10dB* — (STEREO INPUT L, R) (CH6••••& PHONE) STEREO +4dB* +20 d B* PHONE (UNBAL) (L/M, R) SUB INPUT MONO +4dB* +20 dB* PHONE (UNBAL) (1,2) STEREO OUTPUT +4dB* +20 dB* PHONE (UNBAL) (L,R) MONO OUTPUT +4dB* PHONE (UNBAL) +20 dB* (1,2) REC OUTPUT - 10

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TOA Corporation Printed in Japan 133-12-225-10