Infinity Reference 1600a Service Manual
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Infinity Reference 1600a Service Manual

Reference series 1 channel power amplifier
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Reference Series
1600a

1 CHANNEL POWER AMPLIFIER

SERVICE MANUAL
Infinity Systems, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797
Rev1 3/2008
Released 2007
Discontinued XXXX

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Summary of Contents for Infinity Reference 1600a

  • Page 1: Channel Power Amplifier

    Reference Series 1600a 1 CHANNEL POWER AMPLIFIER SERVICE MANUAL Infinity Systems, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 3/2008 Released 2007 Discontinued XXXX...

  • Page 2: Basic Specifications

    14-3/16" x 9" x 2-11/16" (361mm x 229mm x 69mm) Fuse: 3 x 25A Infinity continually strives to update and improve existing products, as well as create new ones. The specifications and details in this and related JBL publications are therefore subject to change without notice.
  • Page 3 1600a Reference Series INFINITY REFERENCE 1600a AMPLIFIER SPECIFICATIONS TEST VOLTAGE 14.4 +0.1V Specification Rating Unit Remarks Power Output ≥400W x 1 Watts 4ohm loads @50Hz (stereo mode) for each ch @<1.0%THD (Unit:W)(LPF=22K) Power Output ≥600W x 1 Watts 2ohm loads @50Hz (stereo mode) for each ch @<1.0%THD...
  • Page 4 1600a Reference Series PACKAGING Item Part Number Description CH4482901202 Outer Carton REF1600a REF1600a Amplifier Plastic Bag BZL279112001 Packing Foam Visit Infinitysystems.com Owner's manual Plastic Bag Accessory kit consisting of: LS1CJ0402507 Mounting Screws 1601-253G-00 SPARE 25A FUSES REMOTE REF AMP Remote Level Control...
  • Page 5 PPLICATIONS The Reference subwoofer amplifiers are single-channel amplifiers. There are two sets of Figure 3. Reference 1300a or 1600a amplifier with two terminals to make it easy to connect multiple woofer connections. woofers. Either set of (+/–) terminals may be used when connecting woofers.

  • Page 6: Mounting Screws

    REMOTE LEVEL CONTROL mounting location; verify that speaker-system frequency to limit bass, and provide increased The 1300a, 1600a and 5350a include a remote impedance is within specified limits. system volume with less distortion. level control. This will allow the subwoofer level to be adjusted from the listening position.

  • Page 7: Table Of Contents

    1600a Reference Series Item# Part Number Description SG-0016-2601 Top cover GD-600011400 Light panel LSIFM0300011 Screw SR-1300-0117 Main heat sink Main PCB MK-0004-2601 Front panel LS5KP0300807 Screw for F/RP LS5KJ0301007 Screw for terminal, RCA jacks XN-10500-012 Knob LSIAP0300607 Screw LSIAM0300607 Screw...
  • Page 8 1600a Reference Series NOTE ON TOP COVER FOR INFINITY REFERENCE MODELS REF475A, REF1300A, REF1600A • There was a revision in the top cover design starting with the serial number range(s) noted below, or identified by the brace design in the supplied images.
  • Page 9 1600a Reference Series BALANCED Block Diagram REF1600 INPUT UNIT INPUT L LP FREQ BASSBOOST VARIABLE VARIABLE MAIN AMP 0dB-6dB/50Hz 32Hz-320Hz/12dB 2 ohm/4 ohm GAIN CONTROL OUTPUT L 320Hz 320Hz OUTPUT R SPEAKER INPUT R 2 ohm/4 ohm BALANCED INPUT UNIT...
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  • Page 19 1600a Reference Series REFERENCE 1600a Electrical Parts List Description Qty Reference Designator Part Number MAIN BOARD Resistors 10mΩ ±1% manganin resistor 1.5 0.5MM 0702-0106-03 Resistor R127 R126 R124 16.5MM R52 R51 0701-2000-02 Resistor SMD 0Ω 1/8W ±5% 0805 0702-4103-02 Carbon resistor 1W 10KΩ...
  • Page 20 1600a Reference Series Description Qty Reference Designator Part Number MAIN BOARD C45 C33 C32 06S322206000 Capacitor SMD 22pF/50V 0805 NPO ±5% C12 C13 C14 06S321006000 Capacitor SMD 10pF/50V 0805 NPO ±5% C25 CX1 C97 C23 C24 06D342227400 MET capacitor (BOX)222/100V ±5% Yellow TR...
  • Page 21 1600a Reference Series Description Qty Reference Designator Part Number MAIN BOARD 1001-1015-10 Common mode choke 5MU 60A φ47 22mm*18mm 1001-4000-10 Inductor 40UH 40A core:ETD-49 φ0.1*80*14TS 1001-3001-10 HF inductor 35UH φ25 φ0.3*20*2 1413-0001-00 Phone Jack 6P4C RJ11 Black 1404-0004-00 RCA Jack...

  • Page 22: Pl-L0006

    1600a Reference Series Description Qty Reference Designator Part Number SIGNAL BOARD R116 R199 0701-2681-02 Resistor SMD 680Ω 1/8W ±5% 0805 0701-2152-02 Resistor SMD 1.5KΩ 1/8W ±5% 0805 R49 R191 R192 0701-2101-02 Resistor SMD 100Ω 1/8W ±5% 0805 0701-2303-03 Resistor SMD 30K 1/8W ±1% 0805...

  • Page 23: Screw

    1600a Reference Series Qty Reference Designator Description Part Number MECHANICAL 214*70*1.2mm, H1-144 silver painting with HG-0005-2601 Rear plate silkscreen 214*70*1.2mm, H1-144 silver painting with MK-0004-2601 Front plate silkscreen KG-100100500 Snap buttom T07-003-01 φ11*φ14*10.8 Black ABS LS1AA0200501 Screw PA2*5 Black zinc...
  • Page 24 1600a Reference Series...
  • Page 25 1600a Reference Series Data Sheet No. PD60195-D IR2010( ) & (PbF) HIGH AND LOW SIDE DRIVER Features • Product Summary Floating channel designed for bootstrap operation Fully operational to 200V 200V max. Tolerant to negative transient voltage, dV/dt immune OFFSET •...

  • Page 26: Functional Block Diagram

    1600a Reference Series IR2010( ) & (PbF) Functional Block Diagram DETECT UV Q LEVEL SHIFT CIRCUIT /COM LEVEL SHIFT DETECT /COM LEVEL SHIFT DELAY Lead Definitions Symbol Description Logic supply Logic input for high side gate driver output (HO), in phase...
  • Page 27 1600a Reference Series 100P R180 22U/50V 22U/50V C115 R187 100R -12V 5.1K R53 1k RCA-4CH JRC4560 100K 100P RCA-4CH RCA IN 100R 3.9K JRC4560 100P 2.4K JRC4560 VR1A OUTPUT RADIO B20K 22U/50V RCA-4CH JRC4560 RCA-4CH 470R R181 C118 R188 100P...
  • Page 28 1600a Reference Series FR104 CN6K C150 POWER FR104 L7812 +12V.BIAS FR104 CN5Q Vout CN5P CN6L IN-OU C128 R178 IN-OU R134 R135 100R 2.2K 2.2K PGND C127 CN8G CN7G C116 470/35V IN-OU IN-OU MMBT222 C129 PREM 100/16V W2200/35V W2200/35V W2200/35V FR104...
  • Page 29 1600a Reference Series R199 +12V.BIAS 680R R193 MUR120 +5V.BLAS R116 5.1V 680R R117 2.2U/16V 100K R118 R198 C100 4.7K IN4148 R106 2.2K 100U/50V R105 IN4148 -VCC 2.2K 7W04 C104 2010 2.2U/16V IN4148 +12V.BIAS 100U/50V IN4148 4.7K 100P 100P C55 472 330R 4.7K...
  • Page 30 1600a Reference Series R108 IN4148 IN4148 R107 R109 IN4148 R120 +VCC +12V 12K/1W 50N20 50N20 50N20 474/100V 4004 R119 4.7R R185 MUR120 3.3U/250V 2.2K C106 C141 10U/100V 10U/100V C101 6.8U/100V R130 50N20 50N20 50N20 C105 2.2K INPUT C102 3.3U/100V C103...

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