Infinity BassLink T Service Manual
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Infinity BassLink T Service Manual

Powered subwoofer system
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BassLink T
Powered Subwoofer System
SERVICE MANUAL
Infinity Systems, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797
Rev0
7/2004

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  • Page 1 BassLink T Powered Subwoofer System SERVICE MANUAL Infinity Systems, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev0 7/2004...

  • Page 2: Table Of Contents

    (L x W x D) (1026mm x 164mm x 366mm) Fuse: 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: Connections/Applications

    • Route all power wires through a grommet in the vehicle’s firewall. If a factory grommet is unavailable, install one. • Connect a short GND wire from BassLink T to the nearest bare metal surface. For a good connection, scrape away paint from the metal surface and use a screw with a lock (star) washer.
  • Page 4 Figures 7 and 8 on pages 4 and 5. For more system ideas, see your authorized Infinity car audio dealer. Figure 7. BassLink T audio connections for a head unit with two line-level or subwoofer (RCA) outputs. AUTO...
  • Page 5 BassLink T PPLICATIONS CONTINUED Figure 8. BassLink T audio connections for a head unit equipped with two speaker-level outputs. AUTO LINE LEVEL HIGH LEVEL POWER BASS TURN ON INPUT INPUT GAIN CROSSOVER BOOST AUTO – – PHASE REMOTE LEVEL +BATT...

  • Page 6: Controls And Functions

    GAIN Control: Use this control to adjust the use this switch to activate (or deactivate) 3. On BassLink T’s top panel, initially set all relative volume (loudness) of BassLink T with BassLink T’s automatic turn-on circuit. controls to their midpoint positions, as shown 9.

  • Page 7: Basic Troubleshooting

    AUTO TURN-ON is set to ON. control (see Tuning BassLink T on page 7). BassLink T will remain on another 5 to 10 minutes 3. Head-unit output is distorted or blown. See after sensing that audio signals are not present your authorized Infinity car audio dealer.

  • Page 8: Exploded View/Parts List

    Basslink T BASSLINK T EXPLODED VIEW Ref # Part Number Description 329-000-05012-0BA Front grille 329-100-05013-0BA Grille ass’y 321-FE-05006-0BA Bracket stand 243-100-05017-0BA Front cabinet 333-EVA-05024-0BA EVA gasket 323-AL-05016-0BA Heatsink extrusion 309-ABS-05005-0BA Control Cover Ass’y 352-DM3219C376 Screw 352-FE-05014-0LA U-bracket 352-AM04014C326 Screw PR-255007 10”...

  • Page 9: Disassembly Procedure

    M2 connector on the amplifier. The position in which this is best achieved is with Basslink T laying flat side down on a surface, woofer side up. Partially bring the enclosure halves together, and work through the remaining gap near the heatsink end. See illustration.

  • Page 10: Amplifier Block Diagram

    BassLink T...

  • Page 11: Electrical Parts List

    BassLink T BASSLINK T Electrical Parts List Part Numbers Description Reference Designators POWER SUPPLY/AMPLIFIER PCB Resistors 110-12102j52 resistor 1K 1/2W ±5% 52mm 110-14000j26 resistor 0Ω 1/4W ±5% 26mm R525,530 110-16000j26 resistor 0Ω 1/6W ±5% 26mm D603 110-16100j26 resistor 10Ω 1/6W ±5% 26mm...
  • Page 12 BassLink T Part Numbers Description Reference Designators POWER SUPPLY/AMPLIFIER PCB 135-b227m35 electrolytic 220uF 35V ±20% 105 C502A 136-3336m50 non-polar capacitor NP 85 33uF 50V 129-a105j633 metalize 1uF 63V ± 5% MSC C505 132-334j504 mylar capacitor 0.33U 50V ± 5% C500,501A 138-5108m801 electrolutic 1000uF 80 ±...
  • Page 13 BassLink T Part Numbers Description Reference Designators INPUT/PREAMP PCB 362-NYL-05006-0WA HOLDER(NYLON)10H(MAE-10T;HAKUTO-10)WHT Resistors 110-16102j26 R219,222,233 resistor 1K 1/6W ±5% CF 26mm 110-16103j26 R229,23,24,302,307,309,312,330,5,6 resistor 10K 1/6W ±5% CF 26mm 110-16104j26 resistor 100K 1/6W ±5% CF 26mm R301,36 110-16123j26 R227 resistor 12K 1/6W ±5% CF 26mm...
  • Page 14 BassLink T Part Numbers Description Reference Designators CLASS-D 300 ASS'Y 180-s570050 switch SS70050-0202-10T-NN SW1,2 359-FIB-00001 fiber washer ψ12*1.5 adhesive 362-NYL-05005-0WA LED spacer(nylon) ψ4*10.5H LED1 Resistors 118-12061001j SMD resistor 1.00K 1206 5% 118-12061002j R25,29,30,30B,7,9 SMD resistor 10.0K 1206 5% 118-120610r0j SMD resistor 10.0Ω1206 5%...

  • Page 15: Drawings

    BassLink T...
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  • Page 20: Ic/Transistor Pinouts

    BassLink T BASSLINK T IC PINOUTS NJM137000N PINOUTS 1.Amp Bias Input A 9.Buffer Output B 2.Diode Bias A 10.Buffer Input B 3.+ Input 11.V+ 4.- Input 12.Output B 5.Output A 13.-Input B 6.V- 14.+Input B 7.Buffer Input A 15.Diode Bias B 8.Buffer Output A...
  • Page 21 BassLink T TL074 TL074A - TL074B LOW NOISE J-FET QUAD OPERATIONAL AMPLIFIERS WIDE COMMON-MODE (UP TO V ) AND DIFFERENTIAL VOLTAGE RANGE LOW INPUT BIAS AND OFFSET CURRENT LOW NOISE e = 15nV/ Hz (typ) OUTPUT SHORT-CIRCUIT PROTECTION HIGH INPUT IMPEDANCE J–FET INPUT STAGE LOW HARMONIC DISTORTION : 0.01% (typ)
  • Page 22 BassLink T BASSLINK T TRANSISTOR PINOUTS PINOUTS PARTS NAME IRF9640 Gate Drain Source IRF640 Gate Drain Source STP60NF06 Gate Drain Source PINOUTS PARTS NAME TIP31C base Collector Emiter TIP32C base Collector Emiter PINOUTS PARTS NAME 2SA1015 Emiter Collector base 2SA965...
  • Page 23 BassLink T...

  • Page 24: Schematics

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  • Page 26 BassLink T...

  • Page 27: Packing

    BassLink T...

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