Hafler 9180 Series Owner's Manual
Hafler 9180 Series Owner's Manual

Hafler 9180 Series Owner's Manual

Hafler power amplifier owner's manual 9180, 9270

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Summary of Contents for Hafler 9180 Series

  • Page 1 Series 9180/ 9270 Power Amplifier...
  • Page 2 SHOCK HAZARD, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. READ INSTRUCTIONS All the safety and operating instructions of your Hafler equipment should be read before power is applied to the equipment. RETAIN OWNERS MANUAL These safety and operating instructions should be retained for future reference.
  • Page 3 14. DAMAGE REQUIRING SERVICE Hafler equipment should be serviced by qualified service personnel when: A. The power supply cord or plug has been damaged, or B. Objects have fallen, or liquid has been spilled into the equipment, or C.
  • Page 4: Table Of Contents

    TABLE OF CONTENTS PERFORMANCE SPECIFICATIONS ... General Information ... INSTALLATION Rackmounting..Ventilation/Placement..Line Voltage..OPERATION/CONNECTIONS Power Cord Connection/Power Switch..Inputs ... Front Panel View Diagram..Rear Panel View Diagram ... Outputs ... Gain Controls..Mono/Stereo Switching..
  • Page 5: Performance Specifications

    PERFORMANCE SPECIFICATIONS All specifications are for 20 Hz - 20 kHz, at full power into 8 ohms, unless specified otherwise. Power Rating: 9180: Rated THD: Full Power Bandwidth: Signal to Noise Ratio: Input Impedance: Input Sensitivity: 9180: Damping Factor: Slew Rate:...
  • Page 6: Installation Rackmounting

    INSTALLATION RACK- The 9180/9270 Amplifier is supplied in either a 17” Black Version, or a 19” Silver Version. The 19” MOUNTING model has rackmounting holes provided for installation in equipment racks. The holes are on standard EIA spacings. Due to conflict with adjacent equipment, it may be advisable to remove the four rubber feet from the bottom of the unit.
  • Page 7: Front Panel View Diagram

    ( 1 9 ” V E R S I O N O N L Y ) ( 1 9 ” V E R S I O N O N L Y ) GAIN 9180 / 9270 AMPLIFIER FRONT PANEL VIEW...
  • Page 8: Rear Panel View Diagram

    S T E R E O I N AC LINE LEFT/MONO VOLTAGE RATING INPUT - T T - LINECORD CONNECTOR RIGHT O U T P U T O U T P U T 9180 / 9270 AMPLIFIER REAR PANEL VIEW I ! I MONO+ OUTPUT LEFT...
  • Page 9: Outputs

    In the Mono Mode, the Left Gain Control effects the overall gain of the amplifier. The Right Gain Control has no effect. MONO/ The 9180/9270 Amplifier may be operated in the normal two channel Stereo Mode, or may be STEREO converted (bridged) to a higher power, single channel amplifier in the Mono Mode.
  • Page 10: Circuit Highlights

    The final output stage uses multiple lateral MOSFET’s (Metal Oxide Semiconductor Field Effect Transistors): four devices per channel in the 9180, and six per channel in the 9270. These devices, unlike conventional bipolar transistors, have a negativetemperature coefficient, which means that they do not exhibit “thermal runaway”.
  • Page 11: Additional Information

    CHANGING LINE The 9180/9270 Amplifier is equipped with a simple means to adjust the AC line voltage rating for VOLTAGE RATING 100, 120, 220, or 240 volts AC, 50/60 Hz. The configuration is labelled above the power cord connector.
  • Page 12: General Troubleshooting Hints

    Repeat steps #2,3, 4, 5 and 6 for the other channel. Replace the covers. The 9180/9270 Amplifier contains five internal fuses: one for AC line power, and four for DC power GENERAL supplies. These fuses should not generally blow unless a malfunction has occurred. These fuses...
  • Page 13: Cleaning/Maintenance

    Do not use any abrasive cleaners or solvents. Unplug the power cord before attempting any cleaning operations. Except as specifically detailed in the owners manual, there are no user serviceable parts or adjustments inside the 9180/9270 Amplifier, and all servicing should be referred to qualified, authorized personnel. DESIGNATORS...
  • Page 14 RMP/4-4752 Q20,Q120 Q21,Q121 RVH-503G Q22,Q122 Q201 RV-102 T S 2 T R M PART NUMBER CR1 ,CR101 CR2,CR102 CPP-331 (9180) CR3,CR103 CPS-331 (9270) CR4,CR104 CM-100 (9180) CR5,CR105 CPS-080 (9270) CR6,CR106 CPC-104 (9180) CR7,CR107 CPP-104MC (9270) C R 2 0 1...
  • Page 15: Functional Block Diagram

    LEFT/MONO LEFT/MONO INPUT MONO/STEREO SWITCH RIGHT INPUT 9180 / 9270 FUNCTIONAL BLOCK DIAGRAM THERMAL THERMAL - P R O T E C T I O N - SENSORS b SYSTEM LEFl- OUTPUT SOFT T U R N O N / O F F...
  • Page 16: Component Layout Diagram

    NOIlVtl( NOIlVtl(...
  • Page 18: Circuit Schematic Diagram

    2N7000 ZiRCUIT SCHEMATIC DIAGRAM R M S E D 1 l/13/91 l - - - T - + + ' + H v l - - - T - + + ' + H v lRl5 -a-*, R201 jl5V +HV- 7.5K CR201 1 N5245>’...
  • Page 19 N O T U S E D FUSE CHART , NEUTRAL HOTI J101 RIGHT INPUT !%I”’ C21/C121. LEF;IiNPUT 9180/9270 CiRCUIT S C H E M A T I C 47.5K R 3 4 33.2K 47.5K REMSED 1 l/13/91 + H V - H V DIAGRAM...
  • Page 20: Service Policy And Limited Warranty

    SERVICE POLICY AND LIMITED WARRANTY If you encounter any difficulty or have any question concerning your 9180/9270 Amplifier, please call our Customer Service Department weekdays, 8 a.m. to 3:30 p.m., Mountain Standard Time, at 602-967-3565. Should you have any doubts as to whether the amplifier is malfunctioning and requires service, please call us before sending in for repair.

This manual is also suitable for:

9270 series

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