Marantz-SR5003-avr-mz09022 电路图 维修手册.pdf

100 Corporate Drive Mahwah, NJ 07430 Service Bulletin No. : MZ09-022 Date: April 1, 2009 _ Model: SR4002, SR5002, SR4003, SR5003, SR6003 Subject: Improvement of GND screws contact. This is a repair tip for a Unit in Protect mode (Fast blinking Standby LED) this is not a call for rework and does not apply to stock units. Symptom: The unit may intermittently go into protection (Fast blinking Stand by LED). No problems are found in the output circuitry and heat is not an issue. The ground point screw on a Main board can loosen during transportation, handling etc., and the contact to ground may become intermittent causing a protect situation. Solution: Add a toothed washer between the ground point screw and PCB land located on a Main board (see diagram below) and then tighten the screw. _ CONFIDENTIALITY 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 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 Parts: Ref# Description Part Number NA Tooth Washer 00M54050300M0 Serial Number Range: SR4003: Up to “MZxx0842004880” From “MZxx0842004881”: Modified on mass production lines SR5003: Up to “MZ040911007560” From “MZ040911007561”: Modified on mass production lines SR6003: Up to “MZxx0842003800” From “MZxx0842003801”: Modified on mass production lines Note: The SR4002 and SR5002 production has been finished so apply as required. _ CONFIDENTIALITY 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 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