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BassLink II
Powered Automotive Subwoofer
SERVICE MANUAL
Infinity Systems, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797 Rev0 8/2005
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Powered Subwoofer Basslink II - CONTENTS - SPECIFICATIONS ………………………………….……..1 PACKAGING…..………………………………….………..2 CONNECTIONS/APPLICATIONS………………………..3 CONTROLS AND FUNCTIONS.……...……..…...…...…6 BASIC TROUBLESHOOTING..…….…….………………8 DISASSEMBLY PROCEDURE.……...….…..…...…...…9 EXPLODED VIEW…………………………………..……10 AMPLIFIER BLOCK DIAGRAM…………………………11 ELECTRICAL PARTS LIST ……………………………. 12 P.C.B. DRAWINGS….…………………………………….18 IC/TRANSISTOR PINOUTS…………………………….. 30 SCH
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Powered Subwoofer Basslink II POWER CONNECTIONS APPLICATIONS Make Power, Ground and Remote turn-on • Install a fuse holder with a 25A fuse within 18" BassLink II is equipped with four line-level (RCA) To help you plan your installation, we have connections as shown in Figure 5. Observe of the battery + terminal (see Figure 5). inputs and four speaker-level inputs. Any combina- included three system applications in Figures 6 the following installation tips: tion of l
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Powered Subwoofer Basslink II APPLICATIONS (CONTINUED) Figure 7. BassLink II audio connections for a head Figure 8. BassLink II audio connections for a head unit equipped with four line-level (RCA) outputs. unit equipped with four speaker-level outputs. BassLink II
(right side) BassLink II
(right side) LF Speaker RF Speaker RCA Stereo Cables
–
+ – –
+ + (not supplied) Source Unit –
+ –
+ LR Speaker RR Speaker 4
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+ + + + Powered Subwoofer Basslink II BASSLINK 4SC INSTALLATION APPLICATION DESCRIPTION Figure 9. CONNECTIONS Figure 13. Typical installation using all four speaker- The BassLink 4sc is a plug-and-play amplifier Connect the front and rear speakers as shown in level inputs from the source unit. designed to make upgrading your system easy. Figure 11. LR LF The BassLink 4sc is designed to slide into an available slot in the BassLink II. Unlike an Figure 11. BassLink I
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Powered Subwoofer Basslink II CONTROLS AND FUNCTIONS TUNING BASSLINK II BassLink II provides several controls and indica- Figure 15. BassLink II controls on right-side panel. 1. Unplug the RJ11 cable that connects the 8. Adjust the CROSSOVER control clockwise tors that simplify sonic integration with virtually REMOTE LEVEL control to BassLink II. or counterclockwise until you hear only low- any vehicle’s unique acoustic properties. They are frequency information. F
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Powered Subwoofer Basslink II CONNECTING THE REMOTE LEVEL INSTALLATION CONTROL TO BASSLINK II OPERATION The REMOTE LEVEL control may be mounted Route the cable behind the dash or other interior The REMOTE LEVEL control is used to adjust the under the dash or may be dismantled and panels and under the carpet. Do not route the output level of the subwoofer. This level control mounted in the dash for a factory appearance. cable outside the vehicle. Connect the RJ11 cab
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Powered Subwoofer Basslink II TROUBLESHOOTING BassLink II (4sc, if installed) • PROBLEM: • PROBLEM: • PROBLEM: No output from BassLink II when head-unit BassLink II produces a loud humming noise POWER LED not lit. fader control set to front or rear (in a 4-channel with the system OFF when using speaker-level connection). inputs. CAUSES and SOLUTIONS: 1. Fuse is blown and needs replacement. CAUSE and SOLUTION: CAUSE and SOLUTIONS: 2. Head unit not functioning prope
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Powered Subwoofer Basslink II BASSLINK II DISASSEMBLY 1) Remove “Amplifier Dock” cover; (8) Phillips screws. 2) Remove (10) Phillips screws holding main heatsink/amplifier to enclosure, tapping the heatsink with a rubber mallet may be necessary to loosen it. Pull amplifier from enclosure 3) Remove single 12 pin Molex connector M300 and both pairs of FASTON terminals from the amplifier PCB; do not mix up the two pairs of red/black wires (speaker and
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Powered Subwoofer Basslink II Ref # Description Part Number Qty EXPLODED VIEW 1 Infinity Logo 316-000-00130-1BA 2 2 Grille 329-100-05125-0VA 2 3 Screw M6*25 Black 351-AM06025A946 8 4 Screw T4*25 Black 352-AM04025D964 16 5 Front baffle 372-000-05027 1 6 Woofer F25X12PR-03DW-P 1 7 Gasket 333-EVA-05142-0BA 1 8 PVC label 315-PC-05035-0TAE 1 9 Side Cover 305-PC-05007-0BA 1 10 Plastic Control Cover 305-PC-05008-0BAE 1 11 Screw M3*12 Black 351-AM03012A090
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Powered Subwoofer Basslink II BASSLINK II Electrical Parts List Part Numbers Description Qty Reference Designators POWER SUPPLY/MAIN PCB Resistors 110-14102j26 Resistor 1K 1/4W ±5% CF 26mm 1 R561 110-16102j26 Resistor 1K 1/6W ±5% CF 26mm 1 R560 110-16103j26 Resistor 10K 1/6W ±5% CF 26mm 1 R540 110-16154j26 Resistor 150K 1/6W ±5% CF 26mm 1 R80A 110-16182j26 Resistor 1.8K 1/6W ±5% CF 26mm 1 R74A 110-16203j26 Resistor 20K 1/6W ±5% CF 26mm 2 R563,564 110-16220j26 Resi
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Powered Subwoofer Basslink II Qty Part Numbers Description Reference Designators POWER SUPPLY/MAIN PCB 193-0s4211 insulator (INSULATION SPACER)42*11 1 193-201612tr insulator TO-220 16mm*12mm 3 for Q10,10B,11 236-AL-05001 AL patten 1 317-000-00037 terminal T=0.3 1 323-AL-05042-0BA heat sink 218*100*21(H) 1 323-AL-05043-1LA heat sink 177*93*73MM 1 333-EVA-00216 EVA PACKING(G)15*25*3T 2 TO thermister-2 333-EVA-05144-1BAE EVA 199.63*10*3T black (RoHS) 2 333-EVA-05145-2B
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Powered Subwoofer Basslink II Qty Part Numbers Description Reference Designators JACK/LIMITER PCBs 135-3226m50 electrolytic cap 22U 50V ±20% 9 C1,2,9,10,21,22,27,28,264 135-3475m50 electrolytic cap 4.7U 50V ±20% 1 C312 135-3476m50 electrolytic cap 47uF 50V ±20% 1 C251 137-3106m35-e mini aluminum ec 10uF 35V 85 ℃ ± 20% ψ5*5 (RoHS) 2 C52,C51 Semiconductors 190-06m13700n I.C. NJM13700N JRC Dual Op Transconductance Amplifier 1 U301 190-06m45581d I.C.NJRC NJM4558LD Dual
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Powered Subwoofer Basslink II Qty Part Numbers Description Reference Designators PWM/CONTROL PCB 110-16432j26 Resistor 4.3K 1/6W±5% CF 26mm 1 R505 110-16433j26 Resistor 43K 1/6W±5% CF 26mm 1 R503 110-16471j26 Resistor 470 ΩK 1/6W±5% CF 26mm 3 R510,522,524 110-16472j26 Resistor 4.7K 1/6W±5% CF 26mm 1 R520 110-16512j26 Resistor 5.1K 1/6W±5% CF 26mm 1 R514 110-16562j26 Resistor 5.6K 1/6W±5% CF 26mm 2 R518,630 110-16681j26 Resistor 680 ΩK 1/6W±5% CF 26mm 1 R504 110-1668
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Powered Subwoofer Basslink II Qty Part Numbers Description Reference Designators GAIN PCB 110-16473j26 Resistor 47K 1/6W±5% CF 26mm 2 R251,253 110-16474j26 Resistor 470K 1/6W±5% CF 26mm 1 R220 110-16622j26 Resistor 6.2K 1/6W ±5% CF 26mm 2 R250,252 Capacitors 129-a104j633 metalized capacitor 0.1U 63V±5%MSTCAP 1 C211 129-a224j633 metalized capacitor 0.22uF 63V±5%MSC 1 C215 129-a274j633 metalized capacitor 0.27uF 63V±5% 4 C260,261,262,263 129-a394j633 metalized capacit
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Powered Subwoofer Basslink II Qty Part Numbers Description Reference Designators CLASS D AMP 192-091sc4672 transistor 2SC4672(MPT3)ROHM 1 Q5B 192-092130376qs SMD transistor 2SA1037K-T146Q/R ROHM 2 Q7,9 192-09215146rs SMD transistor 2SA1514K-T146R ROHM 1 Q3 192-1582n5401 transistor FSC 2N5401 AI-PNP 350V 500mA TO-92 1 Q6B 197-03r1s4148s SMD diode RLS4148-TEII ROHM 8 D1,2,3,4,5,5B,6,20 199-15000563s SMD ZENER 5.6V 5%PHILIPS BZX84-C5V6 2 Z1,Z2 199-15001203s SMD ZENER
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