TABLE OF CONTENTS Page TECHNICAL SUPPORT SERVICES…………………………………………. GENERAL THEORY OF OPERATION ……………………………………… INTERNAL VIEW …….. . ……………………………………………………. CIRCUIT BREAKER REPLACEMENT……………………………………….. SHUTTER REPLACEMENT………………………… ……………………….. TRANSFORMER REPLACEMENT ………………………………………….. COOLING FAN REPLACEMENT…………………………………………….. ELECTRICAL SCHEMATIC (Figure 1)……………………………………… REPLACEMENT PARTS ……………………………………………………... LIT054CUDA Rev. A (English) Page 2 of 9...
INTRODUCTION This manual has been prepared to aid in the repair and maintenance of the MD- 150T 150-Watt Dual Halogen Illuminator. The procedures and instructions contained in this document are to be used by qualified technical personnel only. Some procedures may have live exposed circuitry and wiring which could be hazardous with contact.
GENERAL THEORY OF OPERATION The 150-Watt Dual Halogen Illuminator general operation is as follows. Please consult Fig. 1 for wiring information. A.C. POWER DISTRIBUTION The 150-Watt Dual Halogen Illuminators are based around a switch able input power transformer. Input line voltages of 100-120 V ˜ and 220-240V ˜ at 50/60 Hz are applied at the Power Input Model via a Hospital grade power cord.
PARTS REPLACEMENT PROCEDURES The following procedures are meant to aid the technician/engineer in replacing defective or damaged components. These procedures are meant to be used by qualified personnel only. Extreme caution should be used and all necessary safety precautions taken when working on this equipment. CIRCUIT BREAKER REPLACEMENT Disconnect the illuminator from the power source.
TRANSFORMER REPLACEMENT Disconnect the illuminator from the power source. Remove the 12 cover screws in the sides of the unit. Lift the top cover straight up and off the unit. Set aside. Disconnect the wire leads from the defective transformer. Note the wire positions.
REPLACEMENT PARTS DESCRIPTION PART NUMBER Replacement Lamp, EJA 800-017 Transformer, H5-175-20 800-018 Circuit Breaker, 5A 800-015 Shutter Assembly 800-003 Cooling Fan, SP103A 800-019 Shutter belt, Large 800-020 Shutter belt, Small 800-021 For parts not listed here, call our Technical Service Department listed at the front of the manual.
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