Marantz PM-12 SE Service Manual
  1. Manuals
  2. Brands
  3. Marantz Manuals
  4. Amplifier
  5. PM-12 SE
  6. Service manual

Marantz PM-12 SE Service Manual

Pre-main amplifier
Hide thumbs Also See for PM-12 SE:
Table of Contents

Advertisement

Quick Links

PRE-MAIN AMPLIFIER
PM-12 SE
PM-12 OSE
• For purposes of improvement, specifications and design are subject to change without notice.
• Please use this service manual when referring to the operating instructions without fail.
• Some illustrations used in this service manual are slightly different from the actual product.
Service Manual
Click here!
On-line service parts list
PM-12 SE:
https://dmedia.soundunited.com/documents/details/26617
PM-12 OSE:
https://dmedia.soundunited.com/documents/details/26616
ONLINE PARTS LIST
(P5)
WEB owner's manual
EU:
http://manuals.marantz.com/PM12SE/EU/EN/index.php
JP:
http://manuals.marantz.com/PM12OSE/JP/JA/index.php
Upload is planned for the time of a future press release.
BEFORE SERVICING THIS UNIT
ELECTRICAL
MECHANICAL
REPAIR INFORMATION
UPDATING
Confidential
Ver. 1

Advertisement

Table of Contents
loading

Related Manuals for Marantz PM-12 SE

Summary of Contents for Marantz PM-12 SE

  • Page 1 Service Manual Ver. 1 PRE-MAIN AMPLIFIER PM-12 SE Click here! On-line service parts list PM-12 OSE PM-12 SE: https://dmedia.soundunited.com/documents/details/26617 PM-12 OSE: https://dmedia.soundunited.com/documents/details/26616 ONLINE PARTS LIST (P5) WEB owner’s manual http://manuals.marantz.com/PM12SE/EU/EN/index.php http://manuals.marantz.com/PM12OSE/JP/JA/index.php Upload is planned for the time of a future press release.
  • Page 2 BEFORE SERVICING THIS UNIT SAFETY PRECAUTIONS NOTE FOR SCHEMATIC DIAGRAM HANDLING THE SEMICONDUCTOR AND OPTICS ONLINE PARTS LIST Accessing the Parts List Searching Part Numbers or Ref. Numbers NOTE FOR PARTS LIST SERIAL NUMBER Serial Number Organization SKU Code of this Unit POST-SERVICE PRECAUTIONS Initializing this Unit...

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS The following items should be checked for continued protection of the customer and the service technician. Leakage current check Before returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chas- sis to either side of the power cord is less than 460 kohms, the set is defective.

  • Page 4: Note For Schematic Diagram

    NOTE FOR SCHEMATIC DIAGRAM WARNING: Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. CAUTION: Before returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis resistance check.

  • Page 5: Note For Parts List

    ONLINE PARTS LIST (P5) FRONT INPUT VIDEO F.CNT S.CNT DIGITAL WEB owner’s manual 943203500730S http://manuals.marantz.com/AAAAA/NA/EN/index.php http://manuals.marantz.com/AAAAA/EU/EN/index.php Search Result(s) Found - 10 http://manuals.marantz.com/AAAAA/AP/ZH/index.php Upload is planned for the time of a future press release. DIODE, RECTIFIER, SMPS D9001 943203500730S CVD1N4007SL AXIAL...
  • Page 6 SERIAL NUMBER Serial Number Organization The 14-digit serial number that contains the code of the manufacturing plant and the manufacturing date. 14 digits Factory Manufactured Cumulative Year, month code code serial number The last Month 2digit of year (01 ～ 12) SKU Code of this Unit Product SKU SKU Code...

  • Page 7: Initializing This Unit

    POST-SERVICE PRECAUTIONS Initializing this Unit Make sure to initialize this unit after replacing the microcomputer or any peripheral equipment, or the PCB. 1. Press the power button to turn off the power. 2. Turn on the power. When the ID appears in the display, press and hold button "F.C.B.S. ID" for 5 seconds or longer.

  • Page 8: Schematic Diagrams

    ELECTRICAL SCHEMATIC DIAGRAMS LEVEL DIAGRAM SCH01 AUDIO (RCA-IN) SCH02 AUDIO (RCA-OUT) BLOCK DIAGRAM SCH03 AUDIO (VOLUME) SCH04 AUDIO (UNBAL-BAL) POWER DIAGRAM SCH05 TONE/HP SCH06 POWER SCH07 AC WIRING DIAGRAM SCH08 PHONO SCH09 uCOM SCH10 SEL-SW_HP_INDUCTOR SEMICONDUCTORS SCH11 FCBS SCH12 SPK 1.
  • Page 9 SCHEMATIC DIAGRAMS All Ref.No. has been described in the parts list are four digits. SCH01 AUDIO (RCA-IN) But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. NA24W-K TONE S5051...
  • Page 10 All Ref.No. has been described in the parts list are four digits. SCH02 AUDIO (RCA-OUT) But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. 8U-210238-1 AUDIO (RCA-OUT)
  • Page 11 All Ref.No. has been described in the parts list are four digits. SCH03 AUDIO (VOLUME) But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. 8U-210238-1 AUDIO (VOLUME)
  • Page 12 All Ref.No. has been described in the parts list are four digits. SCH04 AUDIO (UNBAL-BAL) But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. R3112 8U-210238-1 R3651...
  • Page 13 All Ref.No. has been described in the parts list are four digits. SCH05 TONE/HP But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. 8U-210238-2 TONE/HP N2501...
  • Page 14 All Ref.No. has been described in the parts list are four digits. SCH06 POWER But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. 8U-210238-3 POWER PROT_2...
  • Page 15 All Ref.No. has been described in the parts list are four digits. SCH07 AC But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. MainTrans1 8U-210238-3 To Power PWB...
  • Page 16 All Ref.No. has been described in the parts list are four digits. SCH08 PHONO But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. +15V R4401 SHORT...
  • Page 17 All Ref.No. has been described in the parts list are four digits. SCH09 uCOM But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. +3.3VL C1025 +12V...
  • Page 18 All Ref.No. has been described in the parts list are four digits. SCH10 SEL-SW_HP_INDUCTOR But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. (STY-PIN) 50mm 8U-210239-5...
  • Page 19 All Ref.No. has been described in the parts list are four digits. SCH11 FCBS But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. K1901 8U-210239-10 7P-FFCs...
  • Page 20 All Ref.No. has been described in the parts list are four digits. SCH12 SPK But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. Vsig Reg To NC500 L To NC500 R...
  • Page 21 All Ref.No. has been described in the parts list are four digits. SCH13 HDAM-SA3 But there are less than four digits of printed Ref.No. on the PCB, and they have become four digits after the header by adding "0" in the parts list. HDAM-SA3 PWB KIT 00MKH22AJ1030 -->...
  • Page 22 PRINTED CIRCUIT BOARDS uCOM, OLED, HP, P.SW, SEL SW, VOLUME Lead-free Solder When soldering, use the Lead-free Solder (Sn-Ag-Cu). uCOM (A SIDE) uCOM (B SIDE) OLED (A SIDE) OLED (B SIDE) HP (A SIDE) HP (B SIDE) P.SW (A SIDE) P.SW (B SIDE) S8901 Pri.
  • Page 23 PHONO, INDUCTOR, FCBS1, FCBS2, SPK, HDAM SA3 PHONO (A SIDE) PHONO (B SIDE) FCBS1 (A SIDE) FCBS1 (B SIDE) SPK (A SIDE) SPK (B SIDE) 8U-210239-1 PHONO UNIT C4106 C4105 S1902 C1906 Z4101 N1903 N4102 N4101 R4125 R1902 N1901 R4126 R4108 U1901 R4107...
  • Page 24 AUDIO, TONE, POWER AUDIO (A SIDE) TONE (A SIDE) TONE (B SIDE) AUDIO (B SIDE) 8U-210238-3 TONE UNIT Z2501 R9842 R9841 C9814 C9813 C2507 C2508 U2501 C9808 U9801 C2509 C2510 Q9803 Q9801 C2511 C2512 Q9802 C2517 R2502 R2501 Q9804 R9806 R9804 R9805 R9803...

  • Page 25: Level Diagram

    LEVEL DIAGRAM 2018/4/11 PM-12 LEVEL DIAGRAM T. Murayama +30dB +12.4dB +20dB +10dB -11.0dB +30.0dB -14.0dB -10dB ±6dB -20dB +39.6dB -50dB +19.3dB -70dB +30dB +19.3dB UNBAL-BAL AMP with DC servo +12.4dB TONE BUFFER HEADAMP +39.6dB CLASS D PHONO EQ AMP OUTPUT STAGE SPEAKER NC500 PHONO...

  • Page 26: Block Diagram

    BLOCK DIAGRAM +20.0dB 2018/3/8 T. Murayama HEADAMP +40.0dB PM-12 BLOCKDIAGRAM PHONO EQ AMP PHONO TOTAL GAIN 42dB +30dB UNBAL-BAL AMP with DC servo +12.4dB TONE BUFFER CLASS D LINE1 OUTPUT STAGE SPEAKER NC500 LINE2 NJU72322 OP amp BASS : 50Hz ±6dB (NJM8068) REC1 TREBLE : 20kHz ±6dB...

  • Page 27: Power Diagram

    POWER DIAGRAM...

  • Page 28: Wiring Diagram

    WIRING DIAGRAM PM-12 N4101 Wiring Diagram 2P-EH V180406 8U-210239-1 W0021 A-GND PHONO UNIT N4102 2P-EH W0022 A-GND MA002 MA001 NC500 NC500 AC_INLET L ch R ch J0001 W0002 8U-210239-8 T0001 P.SW UNIT MAIN TRANS 13P-PH W0026 13P-PHs N6001 N6002 8U-210239-10 3P-EH 3P-EH N6501...
  • Page 29 SEMICONDUCTORS Only major semiconductors are shown, general semiconductors etc. are omitted to list. The semiconductor which described a detailed drawing in a schematic diagram are omitted to list. 1. IC's R5F100MHAFA (U1001) PORT TABLE Port Setting Port I/O use Name Note Act.
  • Page 30 Port Setting Port Setting Port I/O use Name Note Port I/O use Name Note Act. stby Exit R Act. stby Exit R P74/KR4/INTP8 VOL_A PU 10k Volume Rotary Encorder LCD Driver Communication mode setting input P22/ANI2 D_SET PD 47k H/L = Communication during communication / opera- P73/KR3 tion at 100 msec OLED_...
  • Page 31 CD74HC4094PWR (U2201, U2202) U2201 Port Setting PIN ASSIGNMENT Port I/O use Name Note Act. stby Exit R STROBE STROBE Chip Enable OUTPUT DATA ENABLE DATA DATA Serial Data (Direct controll from MPU) CLOCK CLOCK Serial Clock LINE2 PD 10k LINE2 INPUT Relay ON (ON:H) REC1 PD 10k RECORDER1 INPUT Relay ON (ON:H)
  • Page 32 TC74VHC86FT (U1004) NJU72322V (U5101) NJW1119AV (U2501) TLP785 (U1901) Anode Cathode Emitter Collector...

  • Page 33: Oled Display

    LM319 (U6603) 2. OLED DISPLAY MXS4046 Display Side S020-MXS4046A-1 1Pin 19Pin 15. IO　インターフェイス IO Interfaces MXS4046 IO Interfaces Pin Functions 端子番号 端子名 入出力 機能 Pin No. Functions Pin Name 陽極基準電位 DESCRIPTION Anode Reference Voltage NAME (D, J, NFF 14) (LME 10) (NAD 10) グランド...
  • Page 34 3. Remote Code Table Remote Code List Code Extended Code: AMP PM-12 SE/OSE must receive following codes. Pre-Main These codes are not included in the RC005PMSA CD Player RC-5/RC-5 Ext. RC-5/RC-5 Ext. Key Name System Command Extension RC005PMSA CD MODE (default *1)
  • Page 35 MECHANICAL DISASSEMBLY Flowchart 1. AUDIO PCB 2. FRONT PANEL ASSY 3. FCBS1 PCB 4. FCBS2 PCB 5. TRANS ASSY 6. PHONO ASSY 7. INDUCTOR PCB 8. POWER PCB 9. TONE PCB 10. SMPS600 11. NC500 PCB 12. Precautions when assembling the NC500 13.
  • Page 36 DISASSEMBLY Flowchart • Remove each part following the flow below. • Reassemble the removed parts in the reverse order. • Read "SAFETY PRECAUTIONS" before reassembling the removed parts. • If wire bundles are removed or moved during adjustment or part replacement, reshape the wires after completing the work. Failure to shape the wires correctly may cause problems such as noise. •...
  • Page 37 Explanatory Photos for DISASSEMBLY 1. AUDIO PCB • For the shooting direction of each photos used in this manual, see the photo below. • A, B, C and D in the photo below indicate the shooting directions of photos. Proceeding : TOP COVER → SIDE PANEL → AUDIO PCB •...

  • Page 38: Front Panel Assy

    2. FRONT PANEL ASSY 3. FCBS1 PCB Proceeding : TOP COVER → SIDE PANEL → FRONT PANEL ASSY Proceeding : TOP COVER → SIDE PANEL → FCBS1 PCB (1) Remove the screws. (1) Remove the screws. Remove the connector. Cut the wire clamps. View from the bottom (1) Remove the screws.
  • Page 39 5. TRANS ASSY 7. INDUCTOR PCB Proceeding : TOP COVER → SIDE PANEL → TRANS ASSY Proceeding : TOP COVER → SIDE PANEL → INDUCTOR PCB (1) Remove the screws. Remove the connector. "EXPLODED VIEW" for instructions on removing the INDUCTOR PCB. 8.
  • Page 40 11. NC500 PCB 12. Precautions when assembling the NC500 NOTE : There is an order in which to disassemble the NC500. Proceeding : TOP COVER → SIDE PANEL → NC500 PCB (1) First remove "1. AUDIO PCB", "3. FCBS1 PCB" and "4. TRANS ASSY". NOTE : There is an order in which to disassemble the NC500.

  • Page 41: Rear Panel Assy

    (5) Paying special attention to the cautions below, secure the NC500 of the right channel and the heat 13. REAR PANEL ASSY sink in two locations with screws. Caution : (5-1) The heat sink and chassis holes must be properly aligned. Proceeding : TOP COVER →...

  • Page 42: Exploded View

    EXPLODED VIEW PM-12 SE Parts List : https://dmedia.soundunited.com/documents/details/26617 PM-12 OSE Parts List : https://dmedia.soundunited.com/documents/details/26616 *TOP COVER (PM12OSE) *TOP COVER (PM12SE) T0110 T0100 T0060 T0120 T0060 T0130 T0090 T0080 T0110 006D 008D R0140 R0060 R0200 T0100 C0330 R0190 R0050 H0050 004D...
  • Page 43 PACKAGING VIEW PM-12 SE Parts List : https://dmedia.soundunited.com/documents/details/26617 PM-12 OSE Parts List : https://dmedia.soundunited.com/documents/details/26616 P0060 U0010 U0020 U0030 P0071 (N1G/N1B) U0040 (N1G/N1B/FN) U0050 (N1G/N1B) A0010 P0080 UK plug (UK Only) A0020 P0040 A0030 P0025 P0020 P0020 P0050 P0030 U0031 (FN)

  • Page 44: Repair Information

    REPAIR INFORMATION TROUBLE SHOOTING 1. The power cannot be turned on (The standby LED does not light (standby mode)) 2. The power cannot be turned on (STANDBY LED is lit→light flashes) 3. STANDBY LED flashes while using the unit (Protection circuit becomes activated) 4.

  • Page 45: The Power Cannot Be Turned On

    TROUBLE SHOOTING 1. The power cannot be turned on 2. The power cannot be turned on (STANDBY LED is lit → light flashes) (The standby LED does not light (standby mode)) Check insertion of each connector. INDUCTOR PCB Check insertion of the connector. Check the applicable circuit according to "3.
  • Page 46 3. STANDBY LED flashes while using the unit (Protection circuit becomes activated) "2. The power cannot be turned on (STAND- Check insertion of each connector. BY LED is lit → light flashes)" 4. The power turns on but no sound is output 4.1.

  • Page 47: Measuring Method And Waveforms

    MEASURING METHOD AND WAVEFORMS It is recommended to use extension wires between the probe and test points. AUDIO PCB : U5101 [NJU72322V] AUDIO PCB : U2201, U2202 [CD74HC4094PWR] 1. PCB test point • For points q to Q1 , take measurements at the points shown in the diagram below. r STROBE : 1pin q LATCH : 20pin AUDIO PCB : U5101 [NJU72322V]...

  • Page 48: Special Mode Setting Button

    SPECIAL MODE Special mode setting button b No. 1 : Turn on the power. When the ID appears in the display, press and hold button "A" for 5 seconds or longer. Mode Button A Button B Descriptions The firmware version, display check, communication test of BUS, protection detection count and serial number display appear in the display. Service mode F.C.B.S.

  • Page 49: Service Mode

    1. Service mode 1.4. Clear PROTECTION History 1.1. Actions (1) Display the protection detection number to clear protection history. The firmware version, display check, communication test of BUS, protection detection count and serial number display appear in the display. [PROTECT] The memory is cleared and the unit is initialized.
  • Page 50 2. ERROR MESSAGES Displayed when an error occurs. No. Error cord Error content Remedies ID=1(Master) Two or more amplifiers set as ID=2 (Slave) were detected. Two or more amplifiers set as ID=3 (Slave) were detected. Assign different ID numbers to the amplifiers. Two or more amplifiers set as ID=4 (Slave) were detected.

  • Page 51: Protection Operation

    3. Protection operation Explanation of UCOM (U1001) [PROT_1 : pin1, PROT_2 : pin2, PROT_4 : FATAL, pin31, PROT_5 : READY, pin40, PROT_6 : M_B_DOWN, pin75] [B] The PROT_2 (pin2) is the port to detect abnormalities of the power [A] The PROT_1(pin1) is the port to detect the following abnormalities of supply circuit the amplifiers circuit (1) Detection of an abnormality in the DC offset voltage from the Speaker Output terminal.
  • Page 52 [C] PROT_4(FATAL,pin31) is the port for detecting a power amplifier ab- [D] PROT_5(READY,pin40) is the port for detecting abnormalities in the normality or SMPS abnormality SMPS and power amplifier (1) Detection of an abnormality in the DC offset voltage from the Speaker Output terminal. (1) Detection of an abnormality in the power amplifiers power supply circuit ( ±...
  • Page 53 [E] The PROT_6(M_B_DOWN, pin75) is the port to detect abnormalities of the power supply circuit (Possible Factors) · Power supply series SHORT POWER PCB Low voltage / over voltage detection (1) Detects abnormalities in the power supply circuit of the DIGITAL circuit. +8V/+24 is 2V or less, +3.3V is 8V or more Detects voltage reduction (about 6.6V) in +12V of the DIGITAL circuit power supply, then [Q1006, (Possible Factors)
  • Page 54 UPDATING PROCEDURE AFTER REPLACING THE U-COM, ETC.
  • Page 55 PROCEDURE AFTER REPLACING THE U-COM, ETC. The procedure after replacing the u-COM (microprocessor), flash ROM, etc. is as follows. Procedure PCB Name Ref. No. Description Remark after Re- placement UCOM U1001 R5F100MHAFA SOFTWARE : System Procedure after Replacement A : The software has been written. The software is not written at the time of replacement. B : The software has been written.
  • Page 56 Copyright © 2019 D&M Holdings Inc. All Rights Reserved.

This manual is also suitable for:

Pm-12 ose

Table of Contents