Infinity ENTRA Service Manual
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Infinity ENTRA Service Manual

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See also: Owner's Manual
ENTRA
ENTRA POINT FIVE HTS
POWERED SUBWOOFER
SERVICE MANUAL
Infinity Systems, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797
Rev 2 12/2002

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Summary of Contents for Infinity ENTRA

  • Page 1 ENTRA ENTRA POINT FIVE HTS POWERED SUBWOOFER SERVICE MANUAL Infinity Systems, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev 2 12/2002...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SPECIFICATIONS ........3 DETAILED SPECIFICATIONS ... . …….…… ..4 CONTROLS and CONNECTIONS .

  • Page 3: Specifications

    (381mm x 368mm x 432mm) Weight: 47 lb (21.4kg) Each 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.

  • Page 4: Detailed Specifications

    Entra Subwoofer Detailed Specifications...

  • Page 5: Controls And Connections

    Entra Subwoofer Controls and Connections...
  • Page 6 Entra Subwoofer Controls and Connections (Cont.)

  • Page 7: Operation

    Entra Subwoofer Operation...

  • Page 8: Mechanical/Packaging Parts List

    Entra Subwoofer Mechanical/Packaging Parts List MECHANICAL PARTS LIST SCREW, (16), #8 x .75, BLK, PB TRPH 336806-001 AMPLIFIER NOT FOR SALE WOOFER, 10” (254mm)C.M.M.D. SHIELDED DCR = 3.3 ohms ±10% 336649-001 GRILLE CUP (6) 333249-001 SCREW, (6), #6 x .75, BLK, PB PPH...

  • Page 9: Exploded View

    180° DIRECT DIRECT INPUT BYPASSES FILTER TO SERVICE THE ENTRA SUBWOOFER 1) Remove the grille. 2) Extract (6) rubber grille retainers as shown in the illustration above; this can be accomplished by carefully pulling them out of the cavities with long-nosed pliers or similar tool.

  • Page 10: Packaging

    Entra Subwoofer Packaging...

  • Page 11: Test Setup And Procedures

    ÉLECTRIQUE, NE PAS EXPOSER CET APPAREIL À LA PLUIE OU À L' H UMIDITÉ. SERIAL NO. 120V ~ 60Hz 3A WARNING: SHOCK HAZARD-DO NOT OPEN INFINITY SYSTEMS INC. NORTHRIDGE, CA, USA NO USER SERVICEABLE PARTS INSIDE AMPLIFIER MADE IN CHINA AVIS: RISQUE DE CHOC ÉLECTRIQUE- NE PAS OUVRIR...

  • Page 12: Electrical Parts List

    Entra Subwoofer Electrical Parts List Part Description Designator Quantity PRE AMP PCB ASSEMBLY Resistors 020-100498-120 CARBON FILM RESISTOR 1K 1/8W J R107,123,138 020-100598-120 CARBON FILM RESISTOR 10K 1/8W J R136,127,121, 135,124,125 020-100698-120 CARBON FILM RESISTOR 100K 1/8W J R133 020-110598-120...
  • Page 13 Entra Subwoofer Electrical Parts List Part Description Designator Quantity Miscellaneous 072-010058-000 RCA JACK 2P P/N:052000W1G(Red,White) JK101 074-030002-000 TOGGLE SW P/N L101 SW101 083-031605-000 CONNECTOR LEAD WIRE #26 L:60mm #18 L:70mm 083-052618-000 CONNECTOR LEAD WIRE EH2.5-7P+SCN2.5P+7 CN101 LEAD WIRE 026-200595-263 VR P/N:R1210G-2A1-B20Kx2 10%...
  • Page 14 Entra Subwoofer Electrical Parts List (Cont.) Part Description Designator Quantity 032-100393-300 PE CAPACITOR 0u1/63V J P:5 C606,607,601,709 034-100515-301 ELEC. CAPACITOR PC 10uF/16V M (R)0511 C701,723 034-100615-301 ELEC. CAPACITOR 100uF/16V M (R)0611 C605 034-100695-300 ELEC. CAPACITOR 100uF/63V M (R)1012 C720,721 034-470415-300 ELEC.
  • Page 15 Entra Subwoofer Electrical Parts List (Cont.) Part Description Designator Quantity POWER SUPPLY PCB ASS’Y Resistors 020-820497-120 CARBON RESISTOR 8K2 1/4W J R301,304 021-470301-120 MO RESISTOR 470R 1W J MB TYPE MO-100 R303,302 Capacitors 030-100264-300 CERAMIC CAPACITOR 0u1/100V K NPO TAPING...
  • Page 16 Entra Subwoofer Electrical Parts List (Cont.) Part Description Designator Quantity 071-060031-400 NUT WITH GEAR TRANS FOR MERx2 K-NUT 4p 071-100810-100 FLAT WASHER PC TRANS FOR MERx4 ID=4.3 OD=9.5 t=0.8m/m 071-140031-901 GEAR WASHER BACK PANEL VS GROUND WIRE M3 BLK 072-050002-000...

  • Page 17: Integrated Circuit Diagrams

    Entra Subwoofer Integrated Circuit Diagrams...
  • Page 18 Entra Subwoofer Integrated Circuit Diagrams (Cont.) µPC1237HA IC601 µPC1237HA IC601 MUTING RELAY Vcc ON OVERLOAD OVERLOAD DRIVE DETECTION MUTE DETECTION CIRCUIT FLIP-FLOP CIRCUIT NEUTRAL NEUTRAL AC OFF VOLTAGE VOLTAGE DETECTION DETECTION DETECTION SWITCH for LATCH AUTOMATIC RESET AC OFF DETECTION...

  • Page 19: Block Diagram

    Entra Subwoofer Block Diagarm 15K4 Direct Nor.input SPK IN SPK OUT INPUT MAX +15V PHASE 0° VARI. LPF DIR/NOR FIX LPF 2rd order MIXER 2rd order 2rd order 180 ° -15V AC/DC CONVERTER DIRVER SPK. CLAMPING DIRVER CIRCUIT CIRCUIT 00474...

  • Page 23: Schematics

    Entra Subwoofer Preamp Schematic JK101 R137 Direct 15K4 Normal JK102:A JK102:B R101 1K 1W SPEAKER SPEAKER IN PUT OUT PUT D103 1N4148 R102 1K 1W D104 1N4148 C110 C107 .1u 63V 220P 50V VARIABLE LPF R120 R107 C114 16K9 VR101:A...
  • Page 24 Entra Subwoofer Power Amp Schematic...
  • Page 25 Entra Subwoofer Power Supply Schematic...

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