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Infinity Infinitesimal IV, Service Manual

The Infinity Infinitesimal IV Service Manual is your comprehensive guide for efficient and hassle-free use. This user-friendly manual is available for download absolutely free on our website. Unlock the full potential and ensure smooth operation of your Infinity Infinitesimal IV with this must-have manual. Download now from manualshive.com.

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Summary of Contents for Infinitesimal IV

Page 1: ...Models SSW 10 subwoofer Infinitesimal IV subwoofer Servo Controlled subwoofer RS Subwoofer SERVICE MANUAL Infinity Systems Incorporated 250 Crossways Park Dr Woodbury New York 11797 Rev0 12 2003 ...

Page 2: ...woofer 180 Hz High Pass Filter Dimensions Infinitesimal IV SSW 10 Servo Controlled Subwoofer 13 25 x 13 25 x 13 337 x 337 x 330mm RS Subwoofer 23 25 x 7 25 x 13 25 59x18 5 x 33 5mm Weight Infinitesimal IV SSW 10 Servo Controlled Subwoofer 34 lbs 15 4kg PRODUCT IDENTIFICATION This service manual covers the following models SSW 10 subwoofer Infinitesimal IV subwoofer Servo Controlled subwoofer RS Su...

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Page 6: ...CIRCUIT DESCRIPTION 5 ...

Page 7: ...CIRCUIT DESCRIPTION cont d 6 ...

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Page 10: ...CIRCUIT DESCRIPTION cont d 9 ...

Page 11: ...CIRCUIT DESCRIPTION cont d 10 ...

Page 12: ...THEORY OF OPERATION 11 ...

Page 13: ...THEORY OF OPERATION 12 ...

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Page 15: ...THEORY OF OPERATION 14 ...

Page 16: ...THEORY OF OPERATION 15 ...

Page 17: ...THEORY OF OPERATION 16 ...

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Page 19: ... cover from the amp assembly I RELAY IS CLOSING NORMALLY Audible click is heard 1 5 seconds after power is turned on A R2 R3 430Ω 1watt resistors are burnt up or discolored problem is most likely defective ICI and IC2 on PC 2 the small input board OR one or both of the zener diodes in the power supply B To check replace R2 R3 power up unit and check DC voltages across R2 R3 it should be 11 14 VDC ...

Page 20: ...ck power supply wire for ground TEST CONDITIONS Signal l00mV 100 Hz connected to the low level input with a Y cable both right left inputs Both control pots level and frequency Full Clockwise Turn UUT on No speaker load should be connected at this time ICI LF347N pin 7 388 mV ICI LF347N pin 1 392 mV Check C16 15µf Capacitor One or both leads must be unsoldered for proper reading Replace if defecti...

Page 21: ... 9 All junctions can be tested in the circuit with a diode check function on a DMM If a short is found however remember some output devices are in parallel and will have to be removed to confirm the short 2 Problem is a shorted toroidal power transformer Replace if defective RECOMMENDED FINAL INSPECTION Check for a burnt or deformed thermistor attached to power cord plug switch Replace if defectiv...

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Page 27: ...ists For amplifier assemblies Note These parts lists may contain some part numbers that are not valid or No Longer Available Descriptions and Reference Designators when included should aid technicians in part substitution If necessary call the Infinity Parts department at 1 516 496 3400 ext 6553 for assistance 26 ...

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Page 33: ...BD911 TRANSISTOR 347 8025 BD912 TRANSISTOR 347 8127 2SC2061 TRANSISTOR 2050C238900T 2SC2389 TRANSISTOR 2050A103800T 2SC1038 TRANSISTOR 347 8029 2SD1763A TRANSISTOR 347 8030 2SB1186A TRANSISTOR 347 8033 MPSA12 TRANSISTOR MISC 510 8084 SPEAKER SPST ITT LZ24V RELAY 146 5127 LEVEL LOW FREQ POT 20K X 2 870 5150 FUSE 120V 5 X 20mm 3A SLO BLO GMC 870 5354 FUSE 230V 5 X 20mm 1 5A SLO BLO GMC 539 5349 120V...

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