Marantz-DV8400-cd-sb1 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:27-Feb.-2004Model: DV8400Page:1 /1REF.NBR:MZ04-017Circulation:Application:Subject:Int.ref:PHENOMENON1) FRONT L/R 1 2 and SURR.L/R, CENTER L/R, SUB W L/R of AUDIO OUTPUT are simultaneouslyConnected to amplifier.2) If the Amplifier which used the electronic switch is turned off, another sound will be distorted.REASONS FRONT L/R 1 2 are connected parallel, therefore, if the Amplifier input of another side short-circuits, it will influenceSOLUTIONOn the PM01-AV CIRCUIT BOAD1. Resistor 1k ohm is added to 2 of FRONT L/R 1 2.2. Cut pattern.NECESSARY PARTCarbon film fixed resistor,1k ohm +-5% 1/6W (part no. GD05102160)REMARKSThe countermeasure apply to this claim only.SERVICE BULLETINOutput signal distortion.x for information customercomplaint in case of servicemandatory. See BelowSolder side of FRONT L/R 1 2 (Jack RCA)1 k ohmCut patternRadioFans.CN 收音机爱 好者资料库Approved by H.TamuraWritten by K.ONOWQ-19 2 817/additional rule3 (1st Issue 2003-03-19)Date:15-May-2003Model DV8400Page:1/1REF.NBR:MZ03-016Circulation:Application:Subject:Int.ref: PHENOMENON1. Can not change the slow speed or not engaged to the slow mode in the condition of “5.1ch mode” andTruSurround “ON” mode of the Set Up MENU.2. The Status of the RC232C will be “PLAY” in the condition of “No Disc” and send the “PLAY” command fromRS232C.3. The status of the RC232C will be “TRK” in the condition of “No Disc” and with tray open/close or turned onpower.SOLUTIONReplace the Front MPU (QF01) to the new one. (Parts No. *HS11AKT2R)REMARKS This improvement has been done in the production after Lot number “03” and later. The Lot number is mentioned the serial number label on the rear panel. (ex.MZxxxxxx03xxxx)SERVICE BULLETIN1. Slow mode problem2. RC232C command problem in the condition of “No Disc.”x for informationcustomer complaintin case of servicemandatory BeforeMZxxxxxx02xxxxRadioFans.CN 收音机爱 好者资料库