Yamaha m2500 mixer service manual

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Extracted text from yamaha m2500 mixer service manual (Ocr-read)

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M2500 2 IMPOR TANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and under- stood by the users, and have therefore not been restated. WARNING : Failure to follow appropriate service and safety procedures when servicing this product may result in per- sonal injury, destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service representative. IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certifi- cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form. The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributorÕs Service Division. WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus.) IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. LITHIUM BA TTER Y HANDLING This product uses a lithium battery for memory back-up.WARNING : Lithium batteries are dangerous because they can be exploded by improper handling. Observe the following pre- cautions when handling or replacing lithium batteries. Leave lithium battery replacement to qualified service personnel.Always replace with batteries of the same type.When installing on the PC board by soldering, solder using the connection terminals provided on the battery cells.Never solder directly to the cells. Perform the soldering as quickly as possible.Never reverse the battery polarities when installing.Do not short the batteries.Do not attempt to recharge these batteries.Do not disasemble the batteries.Never heat batteries or throw them into fire. ADVARSEL!Lithiumbatteri-Eksplosionsfare ved fejlagtig handtering. Udskiftning ma kun ske med batteri af samme fabrikat og type. lever det brugte batteri tilbage til leverandren. VARNINGExplosionsfara vid felaktigt batteribyte. Anvand samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren. Kassera anvant batteri enligt fabrikantens instruktion. VAROITUSParisto voi rajahtaa, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiiin. Havita kaytetty paristo valmistajan ohjeiden mukaisesti. The following information complies with Dutch official Gazette 1995. 45; ESSENTIALS OF ORDER ON THE COLLECTION OF BATTERIES. ¥ Please refer to the diassembly procedure for the removal of Back-up Battery. ¥ Leest u voor het verwijderen van de backup batterij deze beschrijving.

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M2500 3 SPECIFICATIONS General speciﬁcations 0 dB is referenced to 0.775 Vrms. Total Harmonic Distortion Less than 0.1% (THD+N) (Master output) 20 Hz–20 kHz @ +14 dB 600 W Frequency Response 0+1, –3 dB (Master Output) 20 Hz–20 kHz @ +4 dB 600 W Gain control at minimum level Hum & Noise (20 Hz–20 kHz)*1 –128 dB Equivalent Input Noise. Rs= 150 W–99 dB Residual Output Noise. (STEREO OUT, MONO/C OUT, GROUP/AUX OUT, AUX OUT, AUX/GROUP OUT) Input Gain= Max. Input Pad= OFF || Input sensitivity= –60 dB –64 dB(68 dB S/N) STEREO OUT Master Level control and one Ch fader at nominal level. –80 dB(84 dB S/N) STEREO OUT, MONO/C OUT Master fader at nominal level and all Ch assign SWs off and all GROUP to ST SWs off. –81 dB(85 dB S/N) GROUP1/AUX7–GROUP8/AUX14 OUT Master Level control at nominal level and all Ch assign SWs off. GROUP/AUX FLIP SW off. –75 dB(79 dB S/N) AUX1–6, AUX7/GROUP1–AUX14/GROUP8 OUT Master Level control at nominal level and all Ch send controls at minimum. GROUP/AUX FLIP SW off. –90 dB(94 dB S/N) MATRIX OUT Master level control at nomi- nal level and all Matrix Mix controls at mini- mum level. Crosstalk –70 dB @ 1 kHz adjacent inputs. –70 dB @ 1 kH input to output. (CH INPUT) –50 dB @ 1 kHz input to output. (ST CH INPUT) Maximum Voltage Gain GROUP/AUX FLIP SW= off 60 dB CH INPUT to CH INSERT OUT 84 dB CH INPUT to GROUP1/AUX7–GROUP8/ AUX14 OUT 80 dB CH INPUT to AUX1, 2 OUT(Pre Fader) 90 dB CH INPUT to AUX3–6, AUX7/GROUP1– AUX14/GROUP8 OUT(Post Fader) 84 dB CH INPUT to STEREO OUT(CH to ST) 70 dB CH INPUT to MONITOR OUT(PFL) CH INPUT PAD SW 26 dB CH INPUT GAIN control 44 dB variable ST CH 1A, 2–4 INPUT GAIN control 40 dB variable ST CH 1B INPUT GAIN control 30 dB variable CH INPUT High Pass Filter 18 dB/octave roll-off below 80 Hz at –3 dB point. CH INPUT Equalization +15, –15 dB maximum HIGH 10 kHz (shelving) HIGH-MID 400– 8 kHz (peaking) LOW-MID 80–1.6 kHz (peaking) LOW 100 Hz (shelving) ST CH INPUT Equalization +15, –15 dB maximum HIGH 10 kHz (shelving) LOW 100 Hz (shelving) Phantom Power +48 VDC is applied to balanced inputs (via 6.8 kW current-limiting/isolation resistors) for powering condenser microphones; may be turned ON or OFF via rear-panel phantom Master switch. When Master is ON, individual channels may be turned ON or OFF via +48V switches (with red LED) on each input chan- nel. CH LED Indicators PEAK LED(red) built into each CH INPUT turns on when pre-Fader level reaches +17 dB. NOM LED(yellow) built into each CH INPUT turns on when pre-Fader level reaches 0 dB. SIGNAL LED(green) built into each CH INPUT turns on when pre-Fader level reaches –13 dB. ST CH LED Indicators PEAK LED(red) built into each ST CH INPUT turns on when pre-Fader [L+R] level reaches +17 dB. NOM LED(yellow) built into each ST CH INPUT turns on when pre-Fader [L+R] level reaches 0 dB. SIGNAL LED(green) built into each ST CH INPUT turns on when pre-Fader [L+R] level reaches –13 dB. Oscillator/Noise Switchable sine wave @ 100 Hz, 1 kHz or 10 kHz, or pink noise. Scene Memory Direct Scene Memory recall switches (1–8) Switchable Scene Memory recall (1–128) VU Meters 11 illuminated meters (0VU= +4 dB output @ 600W load) #1 ; GROUP1/AUX7 -AUX1 -AUX7/GROUP1 -MATRIX1 #2 ; GROUP2/AUX8 -AUX2 -AUX8/GROUP2 -MATRIX2 #3 ; GROUP3/AUX9 -AUX3 -AUX9/GROUP3 -MATRIX3 #4 ; GROUP4/AUX10 -AUX4 -AUX10/GROUP4 -MATRIX4 #5 ; GROUP5/AUX11 -AUX5 -AUX11/GROUP5 -MATRIX5 #6 ; GROUP6/AUX12 -AUX6 -AUX12/GROUP6 -MATRIX6 #7 ; GROUP7/AUX13 -NONE -AUX13/GROUP7 -MATRIX7 #8 ; GROUP8/AUX14 -NONE -AUX14/GROUP8 -MATRIX8 #9 ; STEREO L -PFL/AFL L #10 ; MONO/C #11 ; STEREO R -PFL/AFL R VU Meter Peak Indicators LED(red) built into each VU meter turns on when output signal is above the level 3 dB lower than clipping level. Dimension Heigt 265 mm Depth 875 mm (except rear connectors) Width 2385 mm(56C), 2142 mm(48C), 1899 mm(40C), 1642 mm(32), 1400 mm(24) Weight 102kg(56C), 93kg(48C), 84kg(40C), 71kg(32), 62kg(24) *1 Hum & Noise are measured with a 6 dB/octave ﬁlter @ 12.7 kHz; equivalent to a 20 kHz ﬁlter with inﬁnite dB/octave attenuation. For European Model Purchaser/User information speciﬁed in EN55103-1 and EN55103-2. Conformed Enviroment: E1, E2, E3 and E4.