Marantz-SA8260-sacd-mz08001 电路图 维修手册.pdf

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1、 100 Corporate Drive Mahwah, NJ 07430 Service Bulletin No. : MZ08-001 Date: February 4, 2008 _ Model: SA8260 Subject: QY61 is damaged, and FLD does not turn on. Symptom: QY61 may break down from an excess collector current generated by CY52 discharging electricity when the M1/M2/-VF line and the GND

2、 short out. The short out can be caused at the time of production or servicing, or even when the power is off, by JF03 being improperly pulled out or inserted at an angle or by the mechanical chassis hitting the front PCB. Long-term use in this condition will lead to a breakdown of QY62. Solution: 1

3、) When the unit is dismantled for the mechanism or the PWB to be replaced, please discharge CY52 of charged electricity by contacting a 220-ohm resistor with both ends of CY60 on PP16 (POWER/AUDIO L R CIRCUIT BOARD) for 2 seconds or more. 2) Replace QY61 (2SA1048, etc.) with 2SB1240 (00MHT212402A0:

4、IC max, 3A). _ 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

5、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

6、in this document. RadioFans.CN 收音机爱 好者资料库 _ 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

7、 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. Parts: Ref# Description Part Number QY61 2SB1240 00MHT212402A0 Serial Number Range: All RadioFans.CN 收音机爱 好者资料库