User manual MACKIE MS1202VLZ

[. . . ] MICROSERIES1202-VLZ MIC/LINE MIXER OWNER'S MANUAL ON ON MICRO SERIES TM CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. REFER SERVICING TO QUALIFIED PERSONNEL. WARNING: SERIAL NUMBER MANUFACTURING DATE 1202-VLZ LOW NOISE HIGH HEADROOM 12-CHANNEL MIC/LINE MIXER AVIS: RISCQUE DE CHOC ÉLECTRIQUE -- NE PAS OUVRIR UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE REPLACE WITH THE SAME TYPE FUSE AND RATING. DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE RIGHT POWER PHANTOM LEFT +4 MIC CONTROL ROOM R BAL/UNBAL ALT OUTPUT L R BAL/UNBAL ( PRE-FADER / PRE EQ TIP SEND / RING RETURN) L 4 CHANNEL INSERTS 2 3 1 120 VAC 50/60 Hz 20W 315mA/250V SLO-BLO CAUTION: TO REDUCE THE RISK OF FIRE REPLACE WITH SAME TYPE FUSE AND RATING MAIN OUTPUT LEVEL CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC. [. . . ] Add jumpers as shown on the illustration below -- they're not marked on the circuit board itself, so be careful. Check your work very carefully, then put the bottom cover back the way you found it. You're done! Channels 1­4 6 jumper here 6 jumper here 4 cut here 4 cut here Channels 5­12 4 cut here 6 jumper here 4 cut here 4 cut here 6 jumper here 4 cut here 4 cut here 4 cut here #2: Pre-Mute Mod 27 3. MAIN MIX SOURCE MOD This modification changes the SOURCE matrix's MAIN MIX selection to tap the stereo signal before the MAIN MIX level control (pre) instead of after (post). This could be especially handy for live work where the engineer wants to be able to control the MAIN MIX level (sent to the house system) without changing the level in his headphones. The work area is on the underside of the circuit board, near the MAIN MIX level control. Caution: This modification also causes the meters to indicate pre MAIN MIX levels. They will no longer indicate the signal level at the MAIN OUTS, but rather the signal level at the PHONES and CONTROL ROOM outputs (when MAIN MIX SOURCE is selected). 1. Using a sharp "X-acto" type knife, cut the conductor at points `XL' and `XR'. Be careful to cut all the way through the conductor, and do not cut any nearby traces. Add a jumper from point `YL' to the square pad at point `XL' and from point `YR' to the square pad at point `XR'. Check your work very carefully, then put the bottom cover back the way you found it. You're done! 5 jumper here cut here 4 #3: Main Mix Source Mod 28 PHANTOM POWER LOGIC SOLO ALT R ALT L MAIN R MAIN L INSERT GAIN MAIN / ALT LINE OUT L 2 BAL OUT L 3 3-BAND EQ MAIN MIX 30dB PAD 2 BAL OUT R 3 3-BAND EQ LO MID HI LO MID HI TAPE OUT L PAN TRIM AUX SEND 2 POST AUX SEND 1 POST AUX SEND 1 PRE 1 75Hz HPF 80 2K5 12K 2 LO CUT 1 MIC IN 3 MAIN LEVEL LINE IN AUX SENDS SOLO (PFL) ALT MIX MAIN / ALT ALT OUT L MONO CHANNEL (1 OF 4) 1 LINE OUT R LINE IN L 80 2K5 12K TAPE OUT R STEREO CHANNEL (1 OF 4) GAIN PAN LO 80 2K5 12K MID HI ALT OUT R METERING (0dBu = 0VU) AUX 2 TAPE IN +6dB L TAPE R ALT SOURCE LINE IN R RUDE SOLO LED CONTROL ROOM & PHONES MIX MAIN 22 10 7 4 2 0 2 4 7 10 20 30 MS1202-VLZ BLOCK DIAGRAM AUX 1 SOLO (PFL) CONTROL ROOM & PHONES LEVEL L IN (MONO) SOLO RELAY AUX RETURN 1 GAIN SOLO MIX R IN ASSIGN TO MAIN L IN AUX 1 PRE / POST GAIN AUX 1 LEVEL R IN AUX MIX AUX SEND 1 EFX TO MONITOR AUX SEND 2 RIGHT CONTROL ROOM OUT PHONES OUT LEFT AUX RETURN 2 (MS-0808. VSD) Version 2. 0 3/97 MACKIE MS1202-VLZ BLOCK DIAGRAM 29 30 +15dB up +12dB up +10dB up 'B' to 'C' 'C' -4dB center 0dB MID -12dB down -15dB down HIGH to 'A' -15dB down 'A' LOW +6dB XLR OUT +15db up +20dB up EQ PAN LEVEL MAIN MIX CHANNEL GAIN MIX OUTPUTS +22dBu max out +16dBu max TAPE IN +10dB up 0dB to 'A' 'D' TAPE IN 6dB Boost SOURCE Matrix CONTROL ROOM / PHONES C-R/PHONES MIX C-R/PHONES LEVEL OUTPUT MAIN MIX, ALT 3-4 +22dBu max out +15dB up to 'A' From 'B' Channel AUX SEND AUX MIX AUX SEND Master AUX SEND +10dB up 0dB OUTPUT INPUT LEVEL AUX RETURN 0dB +22dBu max in +20dB up +28dBu max out (XLR) +22dBu max out (1/4" & RCA) +14dBu max in 0dB 10dB gain, TRIM down to 'D' 0dB 1/4" Out and RCA Tape Out -30dB XLR OUT, PAD engaged 60dB gain, TRIM up MIC IN, Channels 1-4 +22dBu max in 10dB loss, TRIM down GAIN STRUCTURE DIAGRAM 0dB 40dB gain, TRIM up LINE IN, Channels 1-4 +22dBu max in Unity gain 0dB to 'C' LINE IN, Channels 5-12 SPECIFICATIONS Main Mix Noise 20Hz­20kHz bandwidth, 1/4" Main out, channels 1­4 Trim @ unity gain, channel EQs flat, all channels assigned to Main Mix, channels 1 and 3 Pan left, 2 and 4 Pan right. Main Mix knob down, channel Gain knobs down: ­100dBu Main Mix knob unity, channel Gain knobs down: ­86. 5dBu (90dB Signal to Noise Ratio, ref +4dBu) Main Mix knob @ unity, channel Gain knobs @ unity: ­84. 5dBu Common Mode Rejection (CMR) Mic in to Insert Send out, max gain 1kHz: better than ­90dB Maximum Levels Mic in: Tape in: All other inputs: Main Mix XLR out: All other outputs: +14dBu +16dBu +22dBu +28dBu +22dBu Total Harmonic Distortion (THD) 1kHz @ +14dBu, 20Hz­20kHz. Mic in to Main out: 0. 0025% Impedances Mic in: Channel Insert return: All other inputs: Tape out: All other outputs: 1. 3 kilohms 2. 5 kilohms 10 kilohms or greater 1. 1 kilohms 120 ohms ±15db @ 12kHz ±12dB @ 2. 5kHz ±15db @ 80Hz 120VAC, 50/60Hz, 25 watts Attenuation (Crosstalk) 1kHz relative to 0dBu, 20Hz­20kHz bandwidth, Line in, 1/4" Main Out, Trim @ unity Main Mix knob down: Channel Alt / Mute switch engaged: Channel Gain knob down: ­85dBu ­84dBu ­83dBu EQ High Shelving Mid Peaking Low Shelving Frequency Response Any input to any output 20Hz to 60kHz: 20Hz to 100kHz: +0dB/­1dB +0dB/­3dB Power Consumption Weight 6 lbs 8 oz. (3 kg) Equivalent Input Noise (EIN) Mic in to Insert Send out, max gain 150 ohm termination: ­129. 5dBm unweighted Dimensions 11. 8" x 11. 2" x 2. 6" (300mm x 284mm 66mm) Mackie Designs is always striving to improve our mixers by incorporating new and improved materials, components and manufacturing methods. Because we're always trying to make things better, we reserve the right to change these specifications at any time, without notice. 6 rack spaces with optional rack ears (RM1202-VLZ) 11. 8" (300mm) 11. 8" (300mm) 11. 2" -- 6 rack spaces (284mm) MS1202-VLZ WEIGHT 6. 5 lbs. (3 kg) 11. 2" (284mm) 31 2. 6" (66mm) 2. 6" (66mm) SERVICE INFO Details concerning Warranty Service are spelled out on the Warranty Card included with your mixer (if it's missing, let us know and we'll rush one to you). If you think your MS1202-VLZ has a problem, please do everything you can to confirm it before calling for service. Doing so might save you from the deprivation of your mixer and the associated suffering. Of all Mackie products returned for service (which is hardly any at all), roughly 50% are coded "CND" -- Could Not Duplicate, which usually means the problem lay somewhere other than the mixer. These may sound obvious to you, but here's some things you can check: REPAIR Service for the U. S. [. . . ] Remember that you can balance a line by inserting a piece of equipment in-line that has a balanced output. Run your own AC power wiring from the stage for the mixer and related equipment. Don't use the "conveniently located" receptacle thoughtfully provided by the management for your use. Use it to tell you if the outlet you're about to plug into is wired correctly. [. . . ]