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ENTRA ENTRA POINT FIVE HTS POWERED SUBWOOFER SERVICE MANUAL Infinity Systems, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev 2 12/2002 TABLE OF CONTENTS SPECIFICATIONS . . . . . . . . . .. . . . . . . . . . . . ... . . . . . . . . . .3 DETAILED SPECIFICATIONS . . . ... . . . . . . ... . . . . .4 CONTROLS and CONNECTIONS . . . .. . . . . . . . . .. . . . . . . .5 OPERATION . . . . . . . . . . . .. . . . . . . . . . . . . . . ... .. . . . . . .7 MECHANICAL/PACKAGING PARTS LIST . .. . . . . . . . . . . . .8 EXPLODED VIEW . . . .. . . . . . . . . . . . . . . . ... . . . . . .9 PACKAGING . . . . . . . .. . . . . . . . . . . . . . . ... . . . . .10 TEST SETUP AND PROCEDURES . . . .. . . . . . . . . . . . . . . .11 ELECTRICAL PARTS LIST . . . . . . . .. . . . . . . . . . . . . . . . . . .12 INTEGRATED CIRCUIT DIAGRAMS . . . . . . . . ... . ... .17 BLOCK DIAGRAM . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . .19 PCB DRAWINGS. . . .. . . . . . . . . . . . . . . ... . . . ...20 SCHEMATICS . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . .23 2 Entra Subwoofer Specifications Frequency Response: Maximum Amplifier Power 34Hz- 150Hz (±3dB) 150 watts*, RMS, 500 watts peak, (20Hz - 150Hz with no more than 0.1% THD) 50Hz - 150Hz, 24dB/octave, continuously variable 10" (245mm) C.M.M.D. shielded DCR = 3.3 ohms ±10% 15" x 14-1/2" x 17" (381mm x 368mm x 432mm) 47 lb (21.4kg) Each Crossover Frequencies: Driver: Dimensions (H x W x D): Weight: Infinity continually strives to update and improve existing products, as well as create new ones. The specifications and construction details in this and related Infinity publications are therefore subject to change without notice. 3 Entra Subwoofer Detailed Specifications 4 Entra Subwoofer Controls and Connections 5 Entra Subwoofer Controls and Connections (Cont.) 6 Entra Subwoofer Operation 7 Entra Subwoofer Mechanical/Packaging Parts List MECHANICAL PARTS LIST 1 2 3 4 5 6 7 8 PACKAGING 9 10 11 12 13 OWNERS MANUAL WARRANTY CARD SURVEY CARD PAD, TOP, END (2) CARTON 336422-002 335841-001 335868-002 336457-001 336458-001 SCREW, (16), #8 x .75, BLK, PB TRPH AMPLIFIER WOOFER, 10" (254mm)C.M.M.D. SHIELDED DCR = 3.3 ohms ±10% GRILLE CUP (6) SCREW, (6), #6 x .75, BLK, PB PPH GRILLE FRONT BAFFLE FOOT (4) PORT TUBE 336806-001 NOT FOR SALE 336649-001 333249-001 903401-012 336454-001 336452-001 330163-001 336806-001 8 Entra Subwoofer Exploded View 1 AMPLIFIER (NOT FOR SALE) PRE AMP PCB ASSEMBLY MAIN AMP ASSEMBLY POWER SUPPLY PCB ASSEMBLY INFINITY ENTRA SUBWOOFER CABINET (NOT FOR SALE) 2 1 3 4 8 7 1 SPEAKER LEVEL INPUT OUTPUT R + L _ + L _ LINE LEVEL INPUT LEVEL PHASE CROSSOVER FREQUENCY 80 _ R + _ R + MIN MAX 0° 60 120 DIRECT 180° 50 150 REMOVE THESE SCREWS 6 DIRECT INPUT BYPASSES FILTER 5 WARNI G: REDUCETHERI KOF I EOREL RI SHOCK, N TO S F R ECT C DO NOT EXPOSETHI APPL NCET RAI ORMOI T S I A