Marantz-PM11S1-int-mz10073 电路图维修手册.pdf

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1、Approved by N.Sensui Written by S.NAGAO WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) Date:24-Oct-2005 Model: PM-11S1/N1G/N1S Page:1 / 8 REF.NBR: MZ05-037 Level Application: Subject: Int.ref: PHENOMENON The transformer excites humming and makes resonances in the cabinet caused by distorted AC

2、 power line wave form. And also it is not solved by replacing power transformer. SOLUTION The microprocessor power supply circuit is changed from half-wave rectifier to full-wave rectifier. 1. POS.NO P871 (RECT PWB ASSY) is added. 2. POS.NO W801 (wire with a connector to one side) is added. 3. POS.N

3、O W044 (wire with a connector to both ends) is added. 4. POS.NO W045 (wire with a connector to both ends) is added. 5. POS.NO D815, D817 (DIODE) and G803 (CAPACITOR) are removed. NECESSARY PART REMARKS This problem apply to the following serial number. 1) PM-11S1/N1G apply to 200004xxxxxxxx and earl

4、ier. This improvement has been done in the production serial number 200005xxxxxxxx and after. 2) PM-11S1/N1S apply to 20000516000720 and earlier. This improvement has been done in the production serial number 20000532000721 and after. 3) As for PM-11S1/U1G/K1G/L1G/S1G/F1N/F S, a transformer is diffe

5、rent, this problem is not generated. SERVICE BULLETIN The noise (humming) of Transformer See below OLD NEW POS. NO PART NO. (FOR EUR) PART NO. (MZ) PART NAME DESCRIPTION NEW P871 99MZZ04AJ4000 99MZZ04AJ4000 PWB ASSY KIT RECT PWB ASSY AND W801, W044, W045 P871 is added RadioFans.CN 收音机爱好者资料库 Approve

6、d by N.Sensui Written by S.NAGAO WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) PM-11S1/N1G/N1S Service Bulletin REF.NBR: MZ05-037 page 2/8 1. NECESSARY PART (PWB ASSY KIT part no. 99MZZ04AJ4000) (P871) RECT PWB ASSY (W044) part no. 00MYD030314GO L=15cm (W045) part no. 00MYB00051690 L=5cm (W80

7、1) part no. 00MYB00051700 L=5cm RadioFans.CN 收音机爱好者资料库 Approved by N.Sensui Written by S.NAGAO WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) PM-11S1/N1G/N1S Service Bulletin REF.NBR: MZ05-037 page 3/8 2. P871 RECT PWB ASSY attachment procedure. 2.-(1) Remove D815, D817, G803. 2.-(2) Add W801

8、. P801 Power Supply PWB W801 Gray Brown RadioFans.CN 收音机爱好者资料库 Approved by N.Sensui Written by S.NAGAO WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) PM-11S1/N1G/N1S Service Bulletin REF.NBR: MZ05-037 page 4/8 2.-(3) Connect W801 to connector J878 2.-(4) W045 connect J804 and J874. W801 J878

9、J874 J804 W045 Approved by N.Sensui Written by S.NAGAO WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) PM-11S1/N1G/N1S Service Bulletin REF.NBR: MZ05-037 page 5/8 2.-(5) Connect Power Transformer wire (Green/Gray) to J872. 2.-(6) Connect Power Transformer wire (Red/Black/Blue) to J871. 2.-(7) A

10、ttach P871 RECT PWB with Screws. (The Screws use the same screws) J872 Power Transformer wire (Green/Gray) J871 Power Transformer wire (Red/Black/Blue) Approved by N.Sensui Written by S.NAGAO WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) PM-11S1/N1G/N1S Service Bulletin REF.NBR: MZ05-037 page

11、 6/8 2.-(8) W044 connect J801 and J873. Connection is completed. J801 W044 (Wire is twisted once.) J873 Approved by N.Sensui Written by S.NAGAO WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) PM-11S1/N1G/N1S Service Bulletin REF.NBR: MZ05-037 page 7/8 3. SCHEMATIC DIADRAM (Changed service manua

12、l page28) W044 Add P871 RECT PWB Add W045 Add W801 Add Remove D817 Remove D815 Remove G803 Approved by N.Sensui Written by S.NAGAO WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) PM-11S1/N1G/N1S Service Bulletin REF.NBR: MZ05-037 page 8/8 4. Parts List for P871 RECT PWB ASSY POS. NO PART NO. (F

13、OR EUR) PART NO. (MZ) PART NAMEDESCRIPTION D871 D872 D873 D874 D875 D876 D877 D878 D879 D880 D881 D882 nsp 00MHD20045290DIODE D1NJ10 100V 1A SBD G871 00MBF47400020 00MBF47400020 CAP.COMP 0.47UF 6.8OHM J871 J873 nsp 00MYP06006860CONN. JST 3P-PLUG B3P-VH J872 J874 nsp 00MYP06006840CONN. B2P-VH 2P PLUG J875 J876 nsp 00M320J104010 RETEINER RETAINER J878 nsp 00MYP06003830CONN. B3B-EH 3P R871 R872 nsp 00MGG05010140RES. 1 OHM +- 5% 1/4W R873 00MNK05010120 00MNK05010120RES. 1.0 OHM +-5% 1/2W G871 R873