NAD-T753-avr-tb3 维修电路原理图.pdf

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1、Page 1 OF 2 Technical Bulletin T753 Product: A/V Receiver Hardware Technical Bulletin: T753-H2004-03Date:June 1, 2004 Subject: HDTV Component Video change Note:Implemented in production from Serial number: R44T75307575 Previous T.B.s required: ? ?YES? ?NODESCRIPTION: To improve the compatibility of

2、HDTV signals with some TV/Monitors. REASON: When decoding HDTV signals some TV/Monitors may experience horizontal sync loss.SOLUTION: Perform the following change to the Component video board. On the component video PCB U4301A) Link the following pins on U4301; Pins 9 to 10 Pins 12 to 13 Pins 14 to

3、15 Figure1RadioFans.CN 收音机爱 好者资料库Page 2 OF 2 Technical Bulletin T753 Product: A/V Receiver Hardware Technical Bulletin: T753-H2004-03HDTV Component Video ChangeB)Remove C4317, C4319, C4321. Figure 2 C) Replace C4316, C4318, and C4320 with 1000 uF 6V. Figure 3 Contact:NAD Electronics International 633 Granite Court Pickering, ON Canada L1K 3K1 Voice: 905-831-0799 FAX 905-837-6357 RadioFans.CN 收音机爱 好者资料库