Marantz-CDR631-cd-mz02031 电路图 维修手册.pdf

Approved by S.NAGAO Written by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) Date:15-May.-2003Model: DR6000, DR6050, CDR631, CDR500 Page:1 / 1REF.NBR:MZ02-031 Circulation:Application: Subject: Int.ref: PHENOMENON The chip capacitor is likely to be damaged in the inconsistency of voltage proof. But, a problem symptom doesnt appear. SOLUTION The chip capacitor is changed to 0.1uF/50V on the CDR Module of MAR770/MAR775. POS.NO. : 2725 2726 2727 Refer to the following of the service manual. MAR770/MAR775 CDR Module ( service manual part no.: 385K855020) CDR MAIN BOARD BOTTOM VIEW : POWER PART TESTPOINTS CDR 3rd gen. 7. GB70 position B5 NECESSARY PART DK98104300 ( 0.1uF/50V ) REMARKS This improvement has been done in the production line after the Lot number MZxxxxxx17xxxx and later.(DR6000) the Lot number MZxxxxxx13xxxx and later.(DR6050) the Lot number MZxxxxxx15xxxx and later.(CDR631) the Lot number MZxxxxxx11xxxx and later.(CDR500) The Lot number is mentioned the serial number label on the rear panel. (ex.MZxxxxxx17xxxx) SERVICE BULLETIN Replace the Chip capacitor on the CDR module of MAR770/MAR775. x for information customer complaint in case of service mandatory . See Below RadioFans.CN 收音机爱 好者资料库 Approved by H. TamuraWritten by K. Ono Date:22-Nov-01Model: DR4050/DR6000/DR605 0CDR500/CDR631 Page:1/1REF.NBMZ01-019 SERVICE BULLETIN Subject: Circulation:Application: Improvement for inoperable all buttons x for information customer complaint in case of service mandatory . See below Int.ref: PHENOMENON While CD is played or CD-R/RW is recorded, the FL display is frozen and all buttons will not be worked. (except POWER button.) SOLUTION Replace the DASP IC with a new one (8204 056 03460, QC05603460). REMARK DR4050:01 - 11 LOT DR6000:01 - 16 LOT DR6050:01 - 12 LOT CDR500:01 - 10 LOT CDR631:01 - 14 LOT This improvement has been done in the production line after the LOT number “12” and later. (DR4050) the LOT number “17” and later. (DR6000) the LOT number “13” and later. (DR6050) the LOT number “11” and later. (CDR500) the LOT number “15” and later. (CDR631) The lot number and the service modification code are mentioned in the serial number label on the rear panel. (ex. MZxxxxxx12xxxx) RadioFans.CN 收音机爱 好者资料库 Approved by S.NAGAO Written by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) Date:15-May.-2003Model:DR6050,CDR500 Page:1 / 1REF.NBR:MZ02-035 Circulation:Application: Subject: Int.ref: PHENOMENON The OPEN/CLOSE movement of disc tray is fast, It may become a CD single 8cm(3in.) clamp defect. SOLUTION 15k ohm resistor is soldered to the Pos.No.3114 in parallel. The object of PCB: CD MAIN BOARD of CD Module MAR1250 (Refer to the CDR500 service manual 2-13 page of MAR1250.) NECESSARY PART 15k ohm GD05153160 REMARKS The countermeasure apply to this claim only. REMARKS This improvement has been done in the production line as follows. the Lot number MZxxxxxx21xxxx and after.(DR6050) the Lot number MZxxxxxx26xxxx and after.(CDR500) The Lot number is mentioned the serial number label on the rear panel. (ex.MZxxxxxx21xxxx) This is Pos.No.3114 SERVICE BULLETIN Miss clamp problem of CD single x for information customer complaint in case of service mandatory . See Below 15k ohm RadioFans.CN 收音机爱 好者资料库