Onkyo-HTRC370-avr-sb11092301 电路图 维修手册.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: 11092301 Important note#2 is added in this bulletin. Changes are shown in red font. Models: TX-NR708; TX-NR709; TX-NR808; TX-NR1008; TX-NR3008; TX-NR5008; DTR- 40.2; DTR-50.2; DTR-70.2; DTR-80.2; DHC-40.2; DHC-80.2; HT-RC270; PRSC5508; HT-RC370 Symptom: Listening modes automatically change. Unit locks up. No commands are accepted by the unit. Important Note#1: Sometimes, it is hard to duplicate symptom. In such cases, also, replace connectors and cable. Important Note #2: After taking out both connectors clean the surface of the PCB before mounting the new connectors. Please see picture below. It shows the bottom surface of the bad connector. As you can see there is a lot of residue, which contaminates the board surface. It is must that you clean the surface on the PCB before mounting the connector. Cause: Insulation failure between pins of IDE connector(s) might cause erratic behavior of Microprocessor. Contact problem in IDE cable from display board to micro board. Solution: Check the serial # of the unit. Only units having: * 8th digit of serial number: 0 or 9th digit of serial number: 1, 2, or 3 might have this symptom. For all of these units, replace both connectors (plugs) P7501A/B and the IDE cable. P7501A is on Main CPU Board, and P7501B is on Display Board. 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: Circuit No. Description QtyPart No. P7501A PLUG / A2545WR2- 2x20P(IDE40SIDE) 1 25056643 P7501B PLUG / A2545WR2- 2x20P(IDE40SIDE) 1 25056643 P7501 SOKET AS(IDE Cable) (The length of cable depends on the model.) TX-NR808/1008 Description: SOCKET AS/NSAS-80P1871 TX-NR3008/5008/709, PR- SC5508 Description: SOCKET AS/NSAS-80P1788 DTR-40.2, DHC-40.2, TX- NR708 Description: SOCKET AS/NSAS-80P1804 DTR-50.2/70.2/80.2, DHC- 80.2 Description: SOCKET AS/NSAS-80P1805 1 2009991203UL 2009991154UL 2009991167UL 2009991168UL 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: 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: 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.