NAD-T550-cd-sh1(1) 维修电路原理图.pdf

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1、PAGE 1-01-01 Service Hint T550The following solutions have been found in the field and may be helpfulwhen servicing the T550.The software wont load into the T550.Look at IC07, pin 3 for cold solder, resoldering this pin or other pinsmay solve this problem.The T550 wont respond to front panel keyboar

2、d or remote commands,intermittently.Try replacing the crystal on the front panel board, marked X901 4.19MHz. Also try resoldering the microprocessor on the front panel board IC91.Contact:NAD Electronics International633 Granite CourtPickering, ON Canada L1K 3K1Voice: 905-831-0799 FAX 905-837-6357 NADwww.NADRadioFans.CN 收音机爱 好者资料库