Shure se22 owners manual

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paralleled) as a monophonic source to one channel of the SE22, the SE22 input should be shunted with a 47,000 ohm resistor or the high frequency trimmer should be readjusted for proper high frequency equalization. Outputs Output terminals appear on the rear panel as shown in Figure C. Outputs are balanced and designed to feed a 150 ohm or 600 ohm line. REAR PANEL FIGURE C Channel Level Controls These controls are located on the front panel designated as "A Level" and "B Level." They are used to adjust the overall operating level of the SE22 and to balance the individual levels of the two channels. Response Trimmers To allow for balancing the response of the two channels of a stereo cartridge, or of two mono- phonic cartridges, high- and low-frequency re- sponse, trimmers are provided for each channel. Figure D shows the location of these controls and Figure E shows the range and character of the response change obtainable. 120 n '0 Z -t10 W "7 Z % 0 LL W ?-lo a J W LL -20 20 50 100 1.000 10.000 20,000 FREQUENCY IN HERTZ TYPICAL EFFECT OF RESPONSE TRIMMERS FIGURE E 220/240 Volt Operation The power transformer may be restrapped for operation with a 220/240 volt ac supply. To make this change, see instructions on the circuit diagram for revising the power transformer connections. Guarantee This Shure product is guaranteed in normal use to be free from electrical and mechanical defects for a period of one year from the date of purchase. Please retain proof of purchase date. This guaran- tee includes all parts and labor. Shipping Instructions Carefully repack the unit and return it prepaid to the factory. If outside the United States, return the unit to your dealer or Authorized Shure Service Center for repair. The unit will be returned to you prepaid. RESPONSE TRIMMERS TOP VIEW (COVER REMOVED) FIGURE D

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MODEL SE22 STEREO TRANSCRIPTION PREAMPLIFIER CIRCUIT DIAGRAM 114 A SLO-EL0 POWER 50-60 Hz OUTPUT NOTES: 1. EQ TRIM {:: ~~z--R~:7c~41~1 2. CHANNEL "Aii IS SHOWN; CHANNEL "B" IS IDENTICAL, EXCEPT USE REFERENCE 5. POWER TRANSFORMER T3 IS SHOWN STRAPPED FOR 110 VOLT MAINS; DESIGNATIONS ENCLOSED IN PARENTHESES. FOR 220 VOLT: MEGOHM VTVM. AC VOLTAGES MEASURED WlTH IOmV. 1 kHz INPUT. WlTH GAIN SET TO 40.8 dB. 3. ARROWS ON POTENTIOMETERS DENOTE CLOCKWISE E: ~~ASpTR~~SN'21'LATED BY BROKEN AND WITH 600 OHM LOAD. ROTATION, AS VIEWED FROM ACTUATORS. LINE. 7 ALL RESISTORS ARE 112 WATT 5%. CARBON 4. FRONT PANEL LEVEL CONTROLS ARE R12 (R381. C. CHANGE FUSE F1 'IaA SLO-BLO' COMPOSITION. UNLESS SHOWN OTHERWISE. POTENTIOMETERS HAVE 20% TOLERANCE. VALUES 6. 0 DENOTES DC VOLTAGE; il DENOTES AC ARE IN OHMS. VOLTAGE. ALL VOLTAGES MEASURED WITH 8. ALL NON-ELECTROLYTIC CAPACITORS HAVE SUPPLY POWER OF 120 VAC. 60 Hz. USING 10 VALUES GIVEN IN MFD.. 10% TOLERANCE. AND HAVE 100 VOLTS MINIMUM RATING, UNLESS SHOWN OTHERWISE. ELECTROLYTIC CAPACITORS HAVE VALUES GIVEN IN MFD. X VOLTS, AND HAVE DIODES 2N5210~pp .- TOLERANCE OF +50%, -lo%, UNLESS SHOWN OTHERWISE. IC I INTEGRATED CIRCUITS 1 I LM301 SELECTED- 2 1 LM301 SELECTED 16-0014