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Page 1: ...www SteamPoweredRadio Com IXER EA PLIF ER ...
Page 2: ... I I MCMarti I MX 5 I MIXER PREAMPLIFIER I 1NSTRUCTION MANUAL I Index page I TECHNICAL SPECIFICATIONS 1 I 11 GENERAL DESCRIPTION 1 Ill INSTALLATION 2 I IV CIRCUIT DESCRIPTION 2 V MAINTENANCE 3 I VI PARTS LIST 4 WARRANTY 5 l VII SCHEMATIC DIAGRAM 6 ...
Page 3: ...ORTION FRONT PANEL CONTROLS FRONT PANEL SWITCHES REAR PANEL A 600 ohms balanced 4 or 8 dBm nominal 18 dBm maxi mum into 600 ihm load 8 SK 0hms unbalanced t 3 0 volts rms C 50 150 balanced 45 dBm 0 Headphone Jack 600 ohms unbalanced isolated t 12 dBm 0 5 ii or less 20 20 000 Hz 8 dBm output level 1 0 or less 20 20 000 Hz 18d8m output level Mic 111 tone generator level Mic 112 level Mic 113 14 equal...
Page 4: ...l 40 dBm level appears on a rear hassis 3 pin male XL type connector Unbalanced high impedance output is terminated on a rear hassls RCA phono jack The output may be monitored through a reari lnel head phone Jack This provides a 18 dBm level at 600 ohms Although headphones of 600 ohm or higher impedance are recommended usable level Is available for head phones of lower impedance The four low level...
Page 5: ...or O 4 referenced to a Symptom No VU meter Illumlnation Fuse falls when power applied No 36 Vdc at power supply output cathode ot D 1 No output or distorted output at TB 1 B but headphOne output okay 7fi 36 volt Zener diode Z 1 and the capacitance multi plier effect of C 42 The MX 5 may also be operated from an external 36 volt de sourc capable of delivering a constant load of 70 milliamperes 1N40...
Page 6: ...salers Those or unusual value tolerances or mechanical configuration or of McMartin manufacture are listed below In ordering replacement parts please specify model serial number McMartin part number and description CHASSIS PARTS Symbol 0 1 F 1 LM 1 M 1 R 5 A 12 A 22 A 33 R 39 R 50 T 1 T 2 MAIN PCB PARTS C 1 C 6 C 12 C 21 C 34 C 39 C 8 C 26 C 37 C 35 C 42 C 43 0 1 0 2 0 3 IC 1 IC 2 IC 3 0 3 0 4 A 4...
Page 7: ...r equipment may be returned only with McMartin s prior authorization and must be identified by a return authorization number previously issued by McMartin s Customer Service Depart ment All merchandise so returned must be sent transportation prepaid at Buyer s risk Full details of the failure or malfunction should be included so as to expedite repair or replacement Repair parts or repaired or repl...
Page 8: ...www SteamPoweredRadio Com I I I I I I I I I I I I I I I I I I MCMartin I 12 76 MASTER SCHEMATIC P N 000519 6 ...
Page 9: ...www SteamPoweredRadio Com JWCJWartin McMartin IndustriesInc 4500South 76th Street Omaha Nebraska 68127 402 331 2000 Telex 48 85 ...
