Marantz-MA9S2-pwr-mz07017 电路图 维修手册.pdf

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1、 100 Corporate Drive Mahwah, NJ 07430 Service Bulletin No. : MZ07-017 Date: February 22, 2007 _ Model: MA-9S2 Subject: Audible Pop noise Symptom: The product can generate a pop noise when powered on/off. The problem tends to occur when the unit is switched on/off while connected to the SC-7S2 with a

2、 balanced cable. Solution: 1. Replace the 10 ohm resistor with a jumper at each of the R629 and R630 sections on the MAIN PWB (P601). 2. Solder and bond a 220pF to the Land Pad of R521 and R522 on the rear of the INPUT AMP PWB (P501). _ CONFIDENTIALITY NOTICE: The information contained in this docum

3、ent 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,

4、 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 1. Replace the R629 and R630 (both 1

5、0 ohms) on the MAIN PWB (P601), with a 10mm-long jumper: _ 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

6、 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 f

7、rom the misuse of the information contained in this document. RadioFans.CN 收音机爱 好者资料库 2. Solder and bond a 220pF (Part No: 00MOF56221540) to each of the R521 and R522 on the rear of the INPUT AMP PWB (P501). For bonding, please use SONY Chemical SC608LVZ or the equivalent. Parts: Ref# Description Pa

8、rt Number NA STAR(126)100VDC221J4- 10 (220pF) and a jumper (10mm long) 00MOF56221540 Serial Number Range: Serial No. A1000634000001 through A1000634000010 A1000634000011 and afterwards: already corrected _ CONFIDENTIALITY NOTICE: The information contained in this document is intended for the exclusi

9、ve 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