Onkyo-DTR5.8-avr-sb维修电路原理图.pdf

CONFIDENTIALITY NOTICE: The content of this Bulletin is Confidential Information as defined in the applicable Independent Service Center Agreement. It is for the exclusive use of Onkyo Authorized Service Centers. Republication, dissemination or posting of this Bulletin on the internet or in any blog is strictly prohibited. CONFIDENTIALITY NOTICE: SERVICE BULLETIN NO: 070710-R1 Models: TX-SR605/DTR5.8 Subject: Static (pop) noise in DSP mode Symptom: During playback in any listening modes except Analog Direct, Multi-ch, and 2ch Pure Audio, Static (Pop) noise randomly comes out from all channel speakers, when the internal temperature is high. This noise stops when the unit is cooled (internal temperature is low) Cause: When the internal temperature becomes high: depending on the variation of IC quality, SDRAM clock cannot catch up with the data reading speed. Procedure: When the above problem is reported, remove C240 from DSP Board NADG-9189. Place the unit as shown in Fig 1. below and then remove C240 as shown in Fig 2. Application to Production: This modification is applied to production units from 7th of July, 2007 and later. The serial number can be read as follows: Serial number: #YM1#2345 Unit number: 12345th unit Year: 200Y Month: M The content of this Bulletin is Confidential Information as defined in the applicable Independent Service Center Agreement. It is for the exclusive use of Onkyo Authorized Service Centers. Republication, dissemination or posting of this Bulletin on the internet or in any blog is strictly prohibited. RadioFans.CN 收音机爱 好者资料库 CONFIDENTIALITY NOTICE: The content of this Bulletin is Confidential Information as defined in the applicable Independent Service Center Agreement. It is for the exclusive use of Onkyo Authorized Service Centers. Republication, dissemination or posting of this Bulletin on the internet or in any blog is strictly prohibited. CONFIDENTIALITY NOTICE: Fig 1. The content of this Bulletin is Confidential Information as defined in the applicable Independent Service Center Agreement. It is for the exclusive use of Onkyo Authorized Service Centers. Republication, dissemination or posting of this Bulletin on the internet or in any blog is strictly prohibited. RadioFans.CN 收音机爱 好者资料库 CONFIDENTIALITY NOTICE: The content of this Bulletin is Confidential Information as defined in the applicable Independent Service Center Agreement. It is for the exclusive use of Onkyo Authorized Service Centers. Republication, dissemination or posting of this Bulletin on the internet or in any blog is strictly prohibited. CONFIDENTIALITY NOTICE: Fig 2. The content of this Bulletin is Confidential Information as defined in the applicable Independent Service Center Agreement. It is for the exclusive use of Onkyo Authorized Service Centers. Republication, dissemination or posting of this Bulletin on the internet or in any blog is strictly prohibited. CONFIDENTIALITY NOTICE: The content of this Bulletin is Confidential Information as defined in the applicable Independent Service Center Agreement. It is for the exclusive use of Onkyo Authorized Service Centers. Republication, dissemination or posting of this Bulletin on the internet or in any blog is strictly prohibited. CONFIDENTIALITY NOTICE: The content of this Bulletin is Confidential Information as defined in the applicable Independent Service Center Agreement. It is for the exclusive use of Onkyo Authorized Service Centers. Republication, dissemination or posting of this Bulletin on the internet or in any blog is strictly prohibited. CONFIDENTIALITY NOTICE: The content of this Bulletin is Confidential Information as defined in the applicable Independent Service Center Agreement. It is for the exclusive use of Onkyo Authorized Service Centers. Republication, dissemination or posting of this Bulletin on the internet or in any blog is strictly prohibited. CONFIDENTIALITY NOTICE: DSP Board: Remove C240 Q201 The content of this Bulletin is Confidential Information as defined in the applicable Independent Service Center Agreement. It is for the exclusive use of Onkyo Authorized Service Centers. Republication, dissemination or posting of this Bulletin on the internet or in any blog is strictly prohibited.