Marantz-DV4300-cd-sb 维修电路原理图.pdf

Approved by S.NAGAO Written by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19)Date:15-May.-2003Model: DV4300Page:1 / 1REF.NBR:MZ03-014Circulation:Application:Subject:Int.ref:PHENOMENONWhen ON/ OFF button is pushed by the DVD mode of RC3200, DV4300 doesnt work.(The remote controller RC3200 is the accessories of PS9200.)SOLUTIONReplace Sub MICRO PROCESSOR ( U501 ) on the MAIN CIRCUIT BOARD.The new Version number is C4 or after C4.Refer to the DV4300 service manual page31.NECESSARY PARTPOS.NO U501 HU21AWX50R (FLASH: Programmed) Refer to service manual 9 page for the for the confirmation process of Version.REMARKSThe countermeasure apply to this claim only.SERVICE BULLETINThe unit doesnt work pushed ON/ OFF buttonof the remote controller RC3200.x for information customercomplaint in case of servicemandatory. See BelowC4RadioFans.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:25-Feb.-2004Model: DV4300Page:1 / 2REF.NBR:MZ04-016Circulation:Application:Subject:Int.ref:REASONSThe part defect of the Laser Pickup slide shaft.(It occurs only in specific serial number because defective plastic part mixing.)SOLUTION 1) Replace the Laser Pickup slide shaft of Loader Assy.2) Old Loader Assy Type no. RL-A700 corresponds.3) New Loader Assy Type no.DSL-710A does not correspond. As for the details, Please see page 2/2. Difference of a shaft, the bottom form of slot is different.NECESSARY PART1) Part no. 21AW112010 (NEW Laser Pickup slide shaft)2) Part no. *G75400000 (FLOIL G754 KANTO KASEI LTD.)REMARKSWith the Unit which has returned from the customer by repair, the following serial number replacethe Laser Pickup slide shaft. This problem apply to following serial number DV4300/U1B MZ000319028601 to MZ000319028650 DV4300/U1B MZ000326028811 to MZ000326029210 DV4300/N1G MZ010325029911 to MZ010325030610 DV4300/N1B MZ010325029211 to MZ010325029910 DV4300/N1B MZ010327033631 to MZ010327034130SERVICE BULLETIN By crack of Laser Pickup slide shaft, Pickup stops moving and cannot playback the Disc.x for information customercomplaint in case of servicemandatory.See belowBottom of slotFlatCircleDefect shaftNew shaft21AW112010RadioFans.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)DV4300 SERVICE BULLETIN (REF.NBR: MZ04-016) page2/21. Open the disc tray.2. Remove 2 screws.3. Push 2 hooks to inside and remove the cover.4.Remove 2 screws and remove plastic ring.5. the Laser Pickup slide shaft is lifted to the upside and remove it6.Grease is applied to the New Laser Pickup slide shaftGrease (FLOIL G754) is applied toboth sides of shaft.When Pickup moves, grease is thinlyapplied so that it may not collect.Range of apply grease.Set projection and a slot8.Attach Plastic ring and screws9.Attach the cover10. Check method. The outermost circumference of the normal Disc can be played.This projection isthe DISC outside.7.Attach the New Laser Pickup slide shaftApproved by S.NAGAO Written by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19)Date:30-June-2003Model: DV4300Page:1 / 1REF.NBR:MZ03-027Circulation:Application:Subject:Int.ref:PHENOMENONThe insulation of Flexible Flat cable can be torn, and it short-circuits with Top cover, then cant be operated.Specially, the insulation of FFC which touches the tip of the Top Cover can be torn.SOLUTIONThe insulator tape put on FFC.Especially, the place where the tip of the Top Cover touches FFC.The tape to use is 3M Scotch Filament Tape #895-2-206 or the equivalent. REMARKSThis improvement has been done in the production the serial no. MZ000303018951 and after.(But, Excluded from the serial no.MZ000303019151 to MZ000303019450.)SERVICE BULLETIN FFC and Top Cover short-circuit, and the unit cant be operated.x for information customercomplaint in case of servicemandatory. See BelowWidth about 25mmAbout 15mmYou must put 3M Scotch tapein the point where the tip ofthe Top cover touches FFC.