NAD-T743-avr-tb5 维修电路原理图.pdf

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1、Page 1 of 1 Technical Bulletin T743 Product: A/V Receiver Hardware Technical Bulletin: T743-H2005-06 Date: February 28/05 Subject: Intermittantly shuts down Note: Implemented in production from serial number:R44T74306601 Previous T.B.s required: K K K K YES K K K K NO DESCRIPTION: Unit may shut down

2、, shortly after turn on. REASON: There is a diode on the standby board that maybe operating intermittantly. SOLUTION: Locate and identify D756 on the standby board. Change only if the diode is a 1N4148. Change from a 1N4148 to a 1N4004 or equivalent. See figure 1 for details. Figure 1 Contact: NAD Electronics International 633 Granite Court Pickering, ON Canada L1K 3K1 Voice: 905-831-0799 FAX 905-837-6357 D756 CHANGE FROM 1N4148 TO 1N4004 RadioFans.CN 收音机爱 好者资料库