Classe-DAC1-dac-sm维修电路原理图.pdf

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RadioFans.CN 收音机爱 好者资料库RadioFans.CN 收音机爱 好者资料库 VOLTAGE CHANGE TO 220/240VAC FOR DAC-1 1- Disconnect unit from the AC line and system. 2- Remove the top cover; screws are located on each side of the unit. 3- Remove the power supply cover. 4- Locate resistor(s) R101, R102, and R103 at the right back side of the main board when facing the unit. (see fig. 1) 5- Remove resistors or jumpers R101 and R102. 6- Install a new jumper at position R103. 7- Replace power supply cover. 8- Replace the top cover 9- Test unit for proper operation.