Marantz-DR5000-cd-mz00013 电路图 维修手册.pdf

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1、Approved by Y. OkabeWritten by K. Ono Date:15-Dec-00Model:SR5000 Page:1/1REF.NBMZ00-013 SERVICE BULLETIN Subject: Circulation:Application: Improvement for reliability of Power amp circuit x for information customer complaint in case of service mandatory . MZxx0032xxxxxx And earlier Int.ref: PHENOMEN

2、ON Blown Power Transistor at Power amp circuit. REASON Unstable idle current at the power amp section and low sensitivity of speaker protection circuit. SOLUTION Replace the resistor R641, R642, R643, R644 and R645 to 220 ohm 1/4W (4822 050 22201, GD05221140). Replace the resistor R616, R617, R618,

3、R619 and R620 to 30k ohm 1/6W (9965 000 02635, GD05303160) Replace the resistor R681, R682, R683, R684 and R685 to 1.5k ohm 1/6W (4822 116 52243, GD05152160) REMARK This improvement has been done in the production line after the year and week code “0033” and later. The year and week code are mention

4、ed in the serial number label on the rear panel. (ex. MZxx0033xxxxxx) RadioFans.CN 收音机爱 好者资料库 Approved by H. TamuraWritten by K. Ono Date:16-Mar-01Model:SR5000 Page:1/1REF.NBMZ01-005 SERVICE BULLETIN Subject: Circulation:Application: Part code number missing (POS. NO. 1). x for information customer

5、complaint in case of service mandatory . ALL Int.ref: PHENOMENON The part code number (for PCS 12NC) of WINDOW FIP (POS.NO.1) is missing. POS. NOVERS. COLOR PART NO.(PCS)DESCRIPTIONPART NO.(MJI) 1/N1WINDOW FIP285W158010 CORRECTION Please add to the part code number for PCS (9965 000 07568) as follow

6、s. POS. NOVERS. COLOR PART NO.(PCS)DESCRIPTIONPART NO.(MJI) 1/N19965 000 07568WINDOW FIP285W158010 RadioFans.CN 收音机爱 好者资料库 Approved by Y. OkabeWritten by H. Tamura Date:28-Dec-99Model SR5000 Page:1/1REF.NB MZ99-033 Subject: Circulation:Application: Int.ref: PHENOMENON The picture quality via S-Video

7、 out is too poor. REASON The amplitude gain in the video buffer amplifier is not correct. SOLUTION Add resistors 150 5% 1/6W (4822 116 83868 : GD05151160) to R272, R278, R281 and R282 (470 ) with parallel junction. SERVICE BULLETIN Bad picture quality via S-Video out. x for information customer complaint in case of service mandatory . MZxxxxxx01xxxx | MZxxxxxx14xxxx RadioFans.CN 收音机爱 好者资料库