Marantz-CDR-631-Service-Bulletin 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:10-May-01Model:DR6000/DR6050/CDR631/CDR500 Page:1/2REF.NBMZ01-015 SERVICE BULLETIN Subject: Circulation:Application: Improvement for OPC error and Finalize error,etc. x for information customer complaint in case of service mandatory . ALL Int.ref: PHENOMENON Since a certain CD-R disc made in Taiwan is low quality, OPC is not completed normally. SOLUTION Please check the version of each software using the service mode. If the versions are earlier than and , update each software referring to attachment sheet. Please refer to the service manual for CDR module MAR770/MAR775. (3120 785 22620, 385K855020) about details of updating software. Please contact to MARANTZ office about the firmware and . REMARK OPU value realignment is mandatory after replace the EPROM. Please refer to the service manual for CDR module MAR770/MAR775. (3120 785 22620, 385K855020) about details of above alignment. RadioFans.CN 收音机爱 好者资料库 MZ01-015 Page 2/2 DR6000 DR6050 CDR631 CDR500COMMENTS MAR2.5First version update by FLASH99 NONO- Update is necessary when CD software up to V3.6 only. Track inclement timing delay (200ms) from DAT has improved. Update for professional CDRs. DAO function has been added. Update for CD V3.6 combination. MAR2.14 Update for other CDRs. (not related with MARANTZ ones) update by FLASH99 NONONOYES Improvement for miss CD-TEXT recording from normal CD while Improvement for miss CD-TEXT recording of Album Performer while DAO. 2.01First version EPROM 7208 replacement YESYES- 2.02+Update for professional CDRs. EPROM 7208 replacement YESYESYES- 2.08+OPC algorithm improved for 80 min CDR Disc and etc. EPROM 7208 replacement YESYESYESYES 2.11+OPC algorithm more improved for most CDR Discs.-NONONONO V3.4First version IC 7202 replacement -NO-Update will be appreciated to complained product only. Improvement for missing start part of tracks after the track search. Improvement for CD playability. NONO NO IC7202(S87C654) code number is 3104 123 85630. The CD software V3.6 must be kept combination with DASP MAR2.13 or higher version. NO- OPU readjustment and Beta alignment by ComPair are mandatory. NONO NONONOYES MAR2.8 SOFTWAREMODULE Update to latest version How to updateMODIFICATION (Improved symptom)VERSION V3.6- update by FLASH99 -MAR2.15 MAR2.13 CD MAR1250 MACE CDR MAR770 or MAR775 DASP NO- Update is necessary when CD software up to V3.6 only. update by FLASH99 NONO RadioFans.CN 收音机爱 好者资料库