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Primare SPA20 Service Manual
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Primare SPA20 Service Manual

Surround processing amplifier
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SPA20 Surround Processing Amplifier
Service Manual

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Summary of Contents for Primare SPA20

  • Page 1 SPA20 Surround Processing Amplifier Service Manual...

  • Page 2: Circuit Diagrams

    1. Circuit Diagrams 2. Adjustment 3. Technical Specifications Confidential ! This document is not allowed to show for third part without written permission from Primare Systems AB. This document is subject to change without notice. Author: Bjorn Holmqvist Primare Systems AB...
  • Page 3 330pF 0.1U 2SA1943 2SA1943 2SC2240 2SA1837 470R 470R 470R 2SC4793 2SC2240 1N4148 0.1U -POWER FUSE1 0.1U 1N4148 115R 220R 100R 100U/63V 0.1V -POWER-REG Title Size Number Revision Date: 20-Aug-2003 Sheet of File: D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade kom Drawn By:...
  • Page 4 R192 2SC2240 2SA1837 470R 470R 470R 2SC4793 2SC2240 1N4148 0.1U -POWER FUSE1 0.1U R120 R144 R151 1N4148 115R 220R 100R 100U/63V 0.1V -POWER-REG Title Size Number Revision Date: 20-Aug-2003 Sheet of File: D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade kom Drawn By:...
  • Page 5 R187 2SC2240 2SA1837 470R 470R 470R 2SC4793 2SC2240 1N4148 0.1U -POWER FUSE1 0.1U R119 R143 R149 1N4148 115R 220R 100R 100U/63V 0.1V -POWER-REG Title Size Number Revision Date: 20-Aug-2003 Sheet of File: D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade kom Drawn By:...
  • Page 6 R182 2SC2240 2SA1837 470R 470R 470R 2SC4793 2SC2240 1N4148 0.1U -POWER FUSE1 0.1U R118 R142 R147 1N4148 115R 220R 100R 100U/63V 0.1V -POWER-REG Title Size Number Revision Date: 20-Aug-2003 Sheet of File: D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade kom Drawn By:...
  • Page 7 R177 2SC2240 2SA1837 470R 470R 470R 2SC4793 2SC2240 1N4148 0.1U -POWER FUSE1 0.1U R117 R141 R145 1N4148 115R 220R 100R 100U/63V 0.1V -POWER-REG Title Size Number Revision Date: 20-Aug-2003 Sheet of File: D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade kom Drawn By:...
  • Page 8 -15V_AN 150K STANDBY REAR-CEN-SUB 470N 470N HEADER 4 R POWER FRONT 10000/63V Title R262 L POWER FRONT 12V-LINK1 Size Number Revision R261 -POWER-REG 12V-LINK2 HEADER 4 -POWER Date: 20-Aug-2003 Sheet of File: D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade kom Drawn By:...
  • Page 10 BCV46 100N SW SPDT SW SPDT TEMPERATURE SW 100N 3.5MM-JACK +5VD S-VIDEO/COMPOSITE Size Number Revision 100N 100N 100N 100N 26PIN TEMPERATURE SW EM1132-2 4148 -5V-VOLUME 4148 4148 Date: 20-Aug-2003 Sheet of File: D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade kom Drawn By:...
  • Page 12 OUT4 OUT1 IN4- IN1- H94I Title IN4+ IN1+ 17.734MHZ VCC- VCC+ IN3+ IN2+ +9V VIDEO Size Number Revision IN3- IN2- OUT3 OUT2 +9V VIDEO 74HC04 HEADER 7 Date: 20-Aug-2003 Sheet of File: D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade kom Drawn By:...

  • Page 14: Input Selector

    XTAL2 P0.6 P0.7 18.432MHZ P1.4/INT1 P1.0/TXD IRFD120 P1.3/INT0 P1.1/RXD 100N 74HCLS147D P1.2 VDD2 100N Title MAX772 100N 7K68 Size Number Revision 100U/6.3V 100U/6.3V 100N DN1418A Date: 20-Aug-2003 Sheet of 100U/6.3V 100U/6.3V File: D:\My Files\underlag produktion\Av20-spa20\Protell Drawings electrical\schematics\orginal\uppdaterade kom Drawn By:...
  • Page 16 Confidential. This drawing is property of Primare Systems AB. It is not allowed to show for third part without written permission from Primare Systems AB. FUSE HEADER 3 HEADER 3 NTC 7R NTC 7R NTC 7R FUSE HEADER 3 IN 1...
  • Page 21 Measure the bias over one of the green emitter resistor (0.22R) for each channel, in later SPA20 models there is a measure contact on each channel (2pin header). Important is that the mains power is exactly the one specified, this affect the bias quite a bit and that the room temperature is constant during the procedure, no wind or drag in the room.

  • Page 22: Technical Specifications

    Technical Specifications Output power: 5x100 W/ 8R All channels driven Analogue inputs: 9 RCA Digital inputs: 2 RCA, 2 TOS-link Video inputs: 4 Composite, 2 S-Video, 2 Component Analogue outputs: Front (L&R), Center, Sub, Surr. (L&R), Surr. back (L&R) Analogue Record Output: 1 RCA (L&R) Digital Output: 1 RCA Video Output: 2 Composite, 2 S-Video, 1 Component Video: NTSC/PAL...