Onkyo-TXSR703-avr-tt1 电路图 维修手册.pdf

《Onkyo-TXSR703-avr-tt1 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Onkyo-TXSR703-avr-tt1 电路图 维修手册.pdf（4页珍藏版）》请在收音机爱好者资料库上搜索。

1、_ CONFIDENTIALITY NOTICE: This document and the information it contains is intended for the exclusive use of Authorized ONKYO Service Centers and their employees. This document may contain information that is privileged, confidential and exempt from disclosure under applicable law and terms of the O

2、NKYO Service Agreement. Any dissemination, distribution or copying of this document and the information it contains is strictly prohibited. CONFIDENTIAL Technical Tip 18 Park Way, Upper Saddle River, NJ 07458 Date: April 6, 2006 _ Model: TX-SR803/SR703, DTR-4.6/5.6/6.6/7.6 Subject: High pitched nois

3、e is heard in the subwoofer. Symptom: A high pitched noise or, a motorboat noise can be heard when using the Optical, Coaxial or HDMI input. Solution: If the DSP board (U03) is marked NADG-8660-1 (see board version pictures) modify the DSP board as follows: Relocate resistor R175 (47ohm) to location

4、 R149. RadioFans.CN 收音机爱 好者资料库 Add a jumper wire to foil side of board between the ground legs of C432 and C442. _ CONFIDENTIALITY NOTICE: This document and the information it contains is intended for the exclusive use of Authorized ONKYO Service Centers and their employees. This document may contai

5、n information that is privileged, confidential and exempt from disclosure under applicable law and terms of the ONKYO Service Agreement. Any dissemination, distribution or copying of this document and the information it contains is strictly prohibited. RadioFans.CN 收音机爱 好者资料库 Board version 1 can be

6、identified by the ink stripe marking. One line indicates the board is version one. _ CONFIDENTIALITY NOTICE: This document and the information it contains is intended for the exclusive use of Authorized ONKYO Service Centers and their employees. This document may contain information that is privileg

7、ed, confidential and exempt from disclosure under applicable law and terms of the ONKYO Service Agreement. Any dissemination, distribution or copying of this document and the information it contains is strictly prohibited. RadioFans.CN 收音机爱 好者资料库 Two or more lines indicate a later revision board. No

8、te: On later revision boards, R175 is a zero ohm resistor and R149 already has a 47 ohm resistor mounted on the board. In this case, you just need to add the jumper wire. Parts: Ref# Description Part Number R175 47 ohm carbon resistor RN72K1J-470JE 435034704R1 _ CONFIDENTIALITY NOTICE: This document

9、 and the information it contains is intended for the exclusive use of Authorized ONKYO Service Centers and their employees. This document may contain information that is privileged, confidential and exempt from disclosure under applicable law and terms of the ONKYO Service Agreement. Any dissemination, distribution or copying of this document and the information it contains is strictly prohibited.