Infinity BassLink Service Manual Download Page 2

-  CONTENTS  - 

 

SPECIFICATIONS ………………………………….……..1 

CONNECTIONS/APPLICATIONS……………………..…2 

CONTROLS AND FUNCTIONS.……...……..…...…...…5 

BASIC TROUBLESHOOTING..…….…….………………6 

EXPLODED VIEW/PARTS LIST…………………………7 

DISASSEMBLY PROCEDURE………………………..…8 

AMPLIFIER BLOCK DIAGRAM……………………….…9 

ELECTRICAL PARTS LIST ……………………………. 10 

P.C.B. DRAWINGS….…………………………………….14 

IC/TRANSISTOR PINOUTS…………………………….. 19 

SCHEMATICS……………………………………………..23 

PACKING…………………………………………………..26 

 

Basslink T   Specifications 

 

Output Power (14.4V supply)  

250W RMS 

Type of Amplifer 

 

 

AB 

Frequency response:   

 

20Hz – 120Hz 

Maximum input signal:  

 

4.0V 

Maximum sensitivity:   

 

50mV to 4V Line-level input 
1V to 16V High-level input 

Input 

Impedance 

  20K 

 

Idle 

Current 

   <800mA 

Signal to Noise 

 

 

>100dB (A-weighted ref to full power) 

Crossover Type 

 

 

Fixed LP @ 12dB per octave 

Crossover Range  

 

 

Variable 70 – 170 Hz 

Min Current Draw (Idle) 

 

1.13A 

Remote Current Draw  

 

<30mA 

Max Current Draw 

 

 

26A 

DC 

Offset 

   <30mV 

Bass Boost 

 

 

 

-6dB to +3dB @ 40Hz 

Auto Turn-On   

 

 

2 -10min (Time to turn Off) 

Operating Voltage 

 

 

10 – 16 VDC 

Dimensions: 

   

40 3/8 x 6 7/16 x 14 3/8”

 (L x W x D) 

     (1026mm 

164mm 

366mm) 

Fuse:    

 

 

 

30A 

 

 
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. 

 BassLink T

        

 

 

 

   

 

 

 

   

 

       

 

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Summary of Contents for BassLink

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: ...High level input Input Impedance 20K Idle Current 800mA Signal to Noise 100dB A weighted ref to full power Crossover Type Fixed LP 12dB per octave Crossover Range Variable 70 170 Hz Min Current Draw...

Page 3: ...r with a 25 A fuse within 18 of the battery s positive terminal see Figure 6 The REM connection requires 5 to 12 Vdc signal to turn on BassLink T Most head units with preamp outputs provide this remot...

Page 4: ...7 and 8 on pages 4 and 5 For more system ideas see your authorized Infinity car audio dealer Figure 7 BassLinkT audio connections for a head unit with two line level or subwoofer RCA outputs APPLICAT...

Page 5: ...a head unit equipped with two speaker level outputs APPLICATIONS CONTINUED POWER BATT REM GND FUSE 25A REMOTE LEVEL CONTROL LINE LEVEL INPUT HIGH LEVEL INPUT AUTO TURN ON PHASE GAIN CROSSOVER BASS BO...

Page 6: ...ol is set to minimum 3 On BassLink T s top panel initially set all controls to their midpoint positions as shown in Figure 12 On BassLink T s top panel initially set PHASE to 0 4 Turn on the head unit...

Page 7: ...is receiving a false turn on signal On BassLink T s top panel slide AUTO TURN ON to OFF and use the Remote REM connection PROBLEM BassLink T s POWER LED remains on after head unit is turned off CAUSE...

Page 8: ...Screw 4 14 24 15 336 EVA 05045 0BA EVA gasket 2 16 352 AM03010D065 Screw 6 17 011 7525 00488 Trunk sub amp 1 18 333 EVA 05026 0BA EVA gasket 1 19 051 B00488B Jack tone pcb ass y 1 20 352 GM03010F055...

Page 9: ...the plastic cover away from the cup working around the perimeter until the cover is detached If the cover is damaged during this procedure order part 309 ABS 05002 REASSEMBLY 9 If the cover to input p...

Page 10: ...BassLink T 9...

Page 11: ...273 290 14A 110 16474j26 resistor 470K 1 6W 5 26mm R278 110 16511j26 resistor 510 1 6W 5 26mm R256 286 110 16512j26 resistor 5 1K 1 6W 5 26mm R514 110 16562j26 resistor 5 6K 1 6W 5 26mm R238 518 630 1...

Page 12: ...1ttc802j0 thermister TTC 802 js NTC TH1 120 1000003 inductor 10W AI YT C3104 005 1CRHW 354708LTB B500 501 502 122 11350j200 inductor R10 38 35uF 2 0 L501 122 14106m130 inductor MIZI R251510 3 1 3 1 0m...

Page 13: ...22uF 63V 5 MSC C215 260 261 262 263 210 129 a823j633 metalize 0 082U 63V 5 MSC C216 115 v503b103 variable resistor RV09AC 40 30K B50K VR201 202 115 v503b204 variable resistor RV09A02 40 30K B50K VR203...

Page 14: ...V 20 C2 3 7 8 9 10 11 15 141 c7223k50 SMD capacitor 0 022uF 50V 10 1206 X7R C13 141 d7104ka0 SMD capacitor 0 1uF 100V 10 1210 X7R C12 14 18 19 Capacitors 132 104kb04a mylar capacitor 0 1uF 200V 10 PIT...

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Page 20: ...t B 6 V 14 Input B 7 Buffer Input A 15 Diode Bias B 8 Buffer Output A 16 Amp Bias Input B NJM4558L PINOUTS 1 A Output 5 B Input 2 A Input 6 B Input 3 A Input 7 B Output 4 V 8 V TL494 PINOUTS 1 Err Amp...

Page 21: ...utput 4 Non inverting Input 4 Inverting Input 4 Non inverting Input 3 Inverting Input 3 Output 1 Inverting Input 1 Output 2 PIN CONNECTIONS top view DESCRIPTION The TL074 TL074A and TL074B are high sp...

Page 22: ...rce STP60NF06 Gate Drain Source PARTS NAME PINOUTS 1 2 3 TIP31C base Collector Emiter TIP32C base Collector Emiter PARTS NAME PINOUTS 1 2 3 2SA1015 Emiter Collector base 2SA965 Emiter Collector base 2...

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