Marantz-SR5500-avr-mz07067 电路图 维修手册.pdf

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1、 100 Corporate Drive Mahwah, NJ 07430 Service Bulletin No. : MZ07-067 Date: June 22, 2007 _ Model: SR5500 Subject: Software Update Information. Symptom: Update the software in order to minimize component over dissipation if the power amp fails. Solution: 1. Change the procedure for the protection op

2、eration that may be performed while the unit is in operation. BEFORE UPDATE Originally, the unit was designed to go into STANDBY mode upon detection of an abnormality with the STANDBY LED flickering every 500m sec. it would never be powered on by the standby switch or the remote control, so componen

3、t over dissipation never occurred. However, if the unit was plugged in again, it could occur before the unit went into standby a few seconds later. AFTER UPDATE The unit has been modified never to be powered on by any means once it goes into standby with the standby led flickering every 125m sec., u

4、nless the specialized procedure (*1) described below is performed. *1: If the unit cannot be powered on after being plugged in again (with the STANDBY LED flickering every 125m seconds), the power amp has been damaged. The unit still can be powered on again through the following method, _ CONFIDENTI

5、ALITY NOTICE: The information contained in this document is intended for the exclusive use by MARANTZ Authorized Service Centers and their employees. This document may contain information that is privileged, confidential and may be protected from disclosure under applicable laws and terms of the MAR

6、ANTZ Service Agreement. Any distribution, disclosure, dissemination or copying of this document and the information it contains is prohibited. No responsibility will be accepted by MARANTZ for any damage, injury or loss resulting from the misuse of the information contained in this document. RadioFa

7、ns.CN 收音机爱 好者资料库 but it can cause further damage the power amplifier. Please never let end-users perform this procedure. 2. Update the MAIN microprocessor firmware. After the update, please refer to the firmware version history. 1) Firstly, please check the version of each software and DSP code. (Fo

8、r the procedure, refer to the Service Manual on Page 6 of the Service Mode.) 3. Update Software and NECESSARY PART Number. 1) Firmware Ver: SR5500_070521_1.mot (For the procedure, please refer to the Service Manual on Page 9.) 2) NECESSARY PART No: 00M08BW499A02 Check the firmware version. If it is

9、found to not yet be updated, please perform the latest update. Serial Number Range: Please implement this update to all units returned for repair. _ CONFIDENTIALITY NOTICE: The information contained in this document is intended for the exclusive use by MARANTZ Authorized Service Centers and their em

10、ployees. This document may contain information that is privileged, confidential and may be protected from disclosure under applicable laws and terms of the MARANTZ Service Agreement. Any distribution, disclosure, dissemination or copying of this document and the information it contains is prohibited. No responsibility will be accepted by MARANTZ for any damage, injury or loss resulting from the misuse of the information contained in this document. RadioFans.CN 收音机爱 好者资料库