Marantz-SA8260-sacd-mz04080 电路图 维修手册.pdf

100 Corporate Drive Mahwah, NJ 07430 Service Bulletin No. : MZ04-080 Rev. Date: December 5, 2006 _ Model: SA8260, SA17S1 Subject: Can not playback hybrid Super Audio CDs. Symptom: 1. Can not playback Super Audio CD (low reflection DISC), ERROR is indicated on the display of the Unit. 2. Can not read TOC with low reflection DISC. The unit stops during playback Super Audio CD. Solution: In order to keep HF level to about 2mA to 5mA the laser current is increased. 1. CHIP RESISTOR (330 OHM) is added to Laser pickup PCB. 2. Add the CHIP RESISTOR ( 0 OHM) to Laser pickup PCB and adjust the trimming potentiometer for the proper HF level. Please see the Service manual page 4. _ 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 is 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 _ 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 is 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 SACD-HF OUTPUT ADJUSTMENT PROCEDURE 1. First, HF level of SACD (low reflection DISC) is checked with an OSCILLOSCOPE. The HF level across R383 (1Kohm) of the following figure (see below). The playable range is 330mV or more. 2. When HF level is less than 330mV, Change R330 (330 OHM) to 0 OHM. 3. Even if R330 changes to 0 OHM, When the HF level falls outside allowable range, the trimming potentiometer needs to be adjusted. (Caution: A problem may occur with a high reflection DISC if the HF level is raised too much.) 4. Playback SACD (low reflection DISC) and the voltage of the both ends of R112 or R113 is measured. Check the measurement voltage it should be 544mV or less. When the measured voltage is over 544mV, replacment of the PICK UP UNIT is 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 is 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. First, Check the HF level of SACD (low reflection DISC) with OSCILLOSCOPE. _ 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 is will be accepted by MARANTZ for any damage, injury or loss resulting from the misuse of the information contained in this document. 2. When HF level is less than 330mV, Change the R330 (330 OHM) to 0 OHM. 3. Even if R330 is changed to 0 OHM, When the HF level falls outside allowable range, the trimming potentiometer needs to be adjusted. 3-1) First, turn OFF the Unit, adjust the variable resistor by rotating it by eye measurement 3-2) First, the resistance of the both ends of trimming potentiometer is measured. 3-3) Then, resistance is made to increase from measured value by about 10% to 20%. 3-4) Set the HF level to 330mV to 380mV. Be careful! The trimming potentiometer adjustment is very critical. _ 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 is will be accepted by MARANTZ for any damage, injury or loss resulting from the misuse of the information contained in this document. 4. Playback SACD (low reflection DISC) and the voltage of the both ends of R112 or R113 is measured. Check the measurement voltage should be 544mV or less. (see picture below) When measurement voltage is over 544mV, replacing of PICK UP UNIT is required for safety. _ 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 is 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 NA CHIP RESISTOR 330 OHM +-5% 1/10W 00MNI05331110 NA CHIP RESISTOR 0 OHM 00MNI05000110 010M PICK UP UNIT 01AK304020 Serial Number Range: The countermeasures listed apply for this type of claim only. _ 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 is will be accepted by MARANTZ for any damage, injury or loss resulting from the misuse of the information contained in this document.