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ACP MRX51 Series Service Manual
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Illustration Component Test ResultsAuto Transformer230 to 0 (Com)……………………….....208 to 0 ………………………………...….120 to 0 (not used)……………….…...Approximately:38 Ω35 Ω25 ΩCapacitor, Cooling FanMotor Wire to Wire 1.5μf ± 5% 400V 50/60hzCapacitor, High Voltage Terminal to Terminal .88μf ± 3% 2100V 50/60hzControl Board, Main See Service Test Mode SectionControl Board, TouchScreen Display See Service Test Mode SectionConvection RTD(Resistive ThermalDevice) aka TempSensorTemperature:70°F (23.9C)………………………………..350°F (176.7)……………………………...Approximately:1100Ω1650ΩFuses F1 - BLN 250V 30A………………………F3 & F4 250V 12A………………………. CLOSED/ContinuityMagnetronDISCHARGE CAPACITORS!Wires Removed:Terminal to Terminal…………………..Both Terminals to Chassis…………..<1ΩOPEN (∞)Motor, Antenna Wires Removed:Terminal to Terminal…………………..Approximately:12,000Ω (12KΩ)Motor, ConvectionBlowerWith Line Voltage Applied & ST2Connector Unplugged:ST1-1 to ST1-2……………………………Motor not running with line voltagepresent indicates a failed motorassembly.Motor, Cooling FanWires Removed:BU to BRN………………………………….…BU to BK……………………………….……..BK to BRN…………………………….………Approximately:200Ω685Ω900ΩCOMPONENT TESTING PROCEDURES |
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