/>/ } :yy/ *K4>m \ «»*** 5 ?W89? masn^ixm • • I o o o I postex TABLE OF CONTENTS 1. LOCATION OF CONTROLS (Front panel) ................... 2 2. LOCATION OF CONNECTIONS (Rear panel) ................. 3 3. INTRODUCTION ......................................... 4 4. INSTALLATION ......................................... 5 5. APPLICATION NOTES ................................... 9 6. BLOCK DIAGRAM ....................................... 10 7. SPECIFICATIONS ...................................... 11 SAFETY INSTRUCTIONS WARNING “READ BEFORE OPERATING” 1 Read Instructions—All the safety and operating instructions shou'd be read before the appiance is operatec. 2 Retain Instiuctions—The safety anct operating instructions shou'd be retained tor future reference 3. Heed Warnings—All warnings on the appiance a^d in the‘operating insiructions should be adhered *o, 4. l-olow Instructions—All operating and use instructions should be flowed 5. Water and Moisture—The appliance should not oe jsed near water — tor example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc. 6. Veil illation—The appliance should be Situated so that its location or posit1 on does not interfere w Ih its proper ventilation. For example, the appliance should not be situated on a oed, sola, rug, or similar suitace that may block the venlilation openings; or, placed in a buit-m installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings. 7. Heat—The appliance should be situated away from heat sources such as radiators, hea: registers, stoves, or otrer appliances (including amplifiers! that produce heat 8. Power Sources—The appliance should oe connected to a power supply only ol t^e type described in the ooeratrg instructions or as marked on the appliance 9. Power-Cord Protection—Power-s.joolv coros should oe ■outed so that they are no' likely to be walked on or pinched by items placed upon or against them, payng particular attention :o cords at olugs, convenience receptacles. and the point where they exit from the appliance 10. Cleaning The appliance should be cleaned only as recommended ny the manufacture' 11 Nonuse Periods—The power cord of the appliance should be unplugged from the outlet when left unused ter a long perioc of time. 12. Object and Liquid Entry—Care should be taken so that objects do not lail and liquids are not spilled into the enclosure tr rough openings 13. Damage Requiring Service—The appliance shoulc he serviced by quali'ied service pe'sonnel when. A. I tie power-supply cord oi the plug has been damaged or B Objects have 'alien, or iquid has been spilled into tie appliance; or C. The appliance has been exoosed to ram. or D. The appliance does not appear to operate normally or exhibits a marked change in pe^ormance, or t Oie appiance f as been dropped, or l^e encosure damagec. id. Servicing—The user shoUd not attempt to service the appi ance beyond that described in the operating instructions All other servicing snould be referred to qualified service peisonnel. WARNING: To avoid possible electric shock hazard, do not expose this appliance to rain or moisture. There are no user serviceable parts Inside. Refer servicing to qualified service personnel. A. 00 FRONT PANEL REAR PANEL 1 1. LOCATION OF CONTROLS (Front panel) (1) Input Jacks Each channel is accessible from either front-panel standard phone jacks or rear-panel standard pin jacks. When both are connected, signal from the front panel input has priority; the rear panel input then has a no signal status. (2) input Level Control When this control is open (full CW position), the minimum level required to drive the unit adequately is -3 0dBV (30 raV). Normal operation requires a nominal adjustment to match the input signal level to that required by the drive circuit of the spring unit. (-106BV is considered normal line level.) (3) Overload Indicator This LED ignites at limiter threshold indicating an overload signal status just prior to the drive circuit. As a limiter is provided, program material with relatively few fast transients will be processed accurately, even though the LED occasionally blinks. With predominant fast transient program material, however, the input level should be adjusted if the LED blinks frequently. (4) Output - Dry Controls the output level of the unprocessed signals. (5) Output - Reverb Controls the output level of the processed signals. As the 3180 features a stereo effect return, a single shaft two-ganged pot is used for the output control. The signals at the output jacks will be a mix of dry-to-reverb, as determined by the settings of these controls. NOTE: For those occasions when you want to control the dry-to-reverb mix at the console, simply turn the Dry Output control fully CCW. (6) Input Mix On/Off Off will be your normal position for processing stereo signals. On will be the position...
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