Download Print this page
McIntosh MCD550 Service Manual
Hide thumbs Also See for MCD550:

Advertisement

Quick Links

Performance Specifications ..........................................2
Notes ...........................................................................2
Rear Panel ...................................................................3
Section Location ..........................................................4
Block Diagram .......................................................5 - 6
Interconnection Diagram ........................................7 - 8
Main Schematic and PCB .....................................9 - 16
Display Schematic and PCB................................17 - 20
SERVICE MANUAL
MCD550
SACD/CD PLAYER
SERIAL NO. ADN1001 And Above
CONTENTS
Control Schematic and PCB ................................21 - 22
Power Schematic and PCB ..................................23 - 26
Backup Schematic and PCB ................................27 - 30
Connector Schematic and PCB ...........................31 - 32
Headphone Schematic and PCB .........................33 - 34
Parts List .............................................................37 - 44
Repacking Instruction ................................................45
MCD550

Advertisement

loading

Summary of Contents for McIntosh MCD550

  • Page 1: Table Of Contents

    MCD550 MCD550 SACD/CD PLAYER SERIAL NO. ADN1001 And Above CONTENTS Performance Specifications ..........2 Control Schematic and PCB ........21 - 22 Notes ................2 Power Schematic and PCB ........23 - 26 Rear Panel ..............3 Backup Schematic and PCB ........27 - 30 Section Location ............4 Connector Schematic and PCB ......31 - 32...
  • Page 2: Performance Specifications

    0.002% @ 1000Hz (SACD) 240 Volts, 50/60Hz at 35 watts 0.002% @ 1000Hz (CD) Standby: Less than 0.5 watt Channel Separation Note: Refer to the rear panel of the MCD550 for the correct Better than 98dB (1,000Hz) voltage. Headphone Output Impedance Overall Dimensions 47 ohms Width is 17-1/2 inches (44.4cm)
  • Page 3: Rear Panel

    Use only replacement parts recom- mended by the manufacturer. 3. Unless otherwise specified: a. Resistor values are in ohms. 6. Use McIntosh Remote Control Model HR056 with the b. Capacitor values are microfarads (uF). MCD301. c. Inductor values are in microhenries (uH).
  • Page 4: Section Location

    SECTION LOCATION TOP VIEW HEADPHONE MAIN POWER BOTTOM VIEW BACKUP DIGITAL CONNECTOR CONTROL FRONT VIEW DISPLAY...
  • Page 5: Block Diagram

    FRONT END LASER DIODE/ UNIT DIGITAL INPUT RECEIVER PICK UP COAXIAL SWITCH FPGA INTERFACE MOTOR OPTICAL DETECT CONTROL PROCESSOR DIGITAL SPINDLE DIGITAL INPUT OPTICAL INTERFACE DIGITAL INPUT MEMORY SDRAM EEPROM FLASH 16MB 16MB DISC EEPROM MCD550 BLOCK DIAGRAM SACD/CD TRANSPORT DIGITAL...
  • Page 6: Interconnection Diagram

    INTERCONNECT MCD550 INTERCONNECTION DIAGRAM PRIMARY LINE VOLTAGE 120V AC 50/60Hz 100-120VAC 50/60Hz 35W T1AL 220-240VAC 50/60Hz 35W T500mAL 173115 BLK L DIGITAL WHT N 171723 N2901 N2902 POWER BACKUP MAIN CY101 CX292 CX291 SACD/CD TRANSPORT N1101 N2701 CX071 CA13 173198...
  • Page 7 MCD550 MAIN 751544 SCH 1 of 3 3.3VD 2.21K R219 100K R212 RESET DATA CLOCK LATCH CSINT .1UF .1UF 22.1 MUTE HMUTE USB ON/OFF OMUTE DATAI J1:13 .1UF SCLK J1:11 J2:2 4.75K CSDIS J1:9 J2:4 J1:7 3.3VD J2:5 BU3.3V AUTOMUTE J1:12 BU3.3V...
  • Page 8 MAIN 751544 SCH 2 of 3 DIGITAL PCB 14.5VA R122 5.62 15VA -14.5VA R214 AUTOMUTE 1.1k MODE R191 INT/EXT AMUTE -15VA 1.21k R106 5.62 1.65k R123 100µH -14.5VA 47µF .001uF VOUT 560pF E/ D VD D 14.5VA 24. 5760 47.5 C152 .1UF 14.5VA...
  • Page 9 MCD550 MAIN 751544 SCH 3 of 3 VARIABLE LEFT+ BALANCED -14.5VA OUTPUT DRIVER OMUTE C126 C132 R170 R176 47µF 47µF VARIABLE LEFT+ U27:1 LEFT BALANCED -14.5VA BALANCED OUTPUT DRIVER OUTPUT OMUTE R182 R136 R130 47µF 14.5VA U22:1 R148 47µF C103...
  • Page 10 MAIN 751544 PCB...
  • Page 11 MCD550 DISPLAY 751545 SCH TP13 TP15 +32V J1:2 4.2V J1:1 -32V J1:3 TP19 TP14 J1:4 DATAI 2.8V J3:6 TP16 DS4F5V J1:5 SCLK J3:8 4.75K 1.5K TP17 DS4F0V J1:6 CSDIS J3:10 TP18 J1:7 39pF J3:12 J1:8 3.3VD J1:9 J3:14 BU3.3V J1:10...
  • Page 12 DISPLAY 751545 PCB...
  • Page 13 MCD550 CONTROL 751546 SCH and PCB J1:2 BACK J1:7 NEXT J1:5 LEV-D J1:3 J1:4 J1:6 LEV-U J1:1 J1:8 .1µF .1µF .1µF...
  • Page 14 POWER TO POWER TRANSFORMER SECONDARY 751547 SCH 3.3V REGULATOR 1.5K 3.3VD .01µF 2.21 DS4F5V J1:5 BOOT VOUT 3.3VD J4:1 IADJ 15µH 3.3VD J4:2 DS4F0V J1:6 J4:3 J4:4 -32V REGULATOR 5V REGULATOR J4:5 -32V J1:3 -32V 2.74K J4:6 .01µF 220uF BOOT 12VM J1:4 J4:7...
  • Page 15 MCD550 POWER 751547 PCB...
  • Page 16 BACKUP PS 751548 SCH 120V B (BLK) J8:1 J9:1 20V B (BLU) J8:2 J9:2 0V B (GRY) J8:3 J9:3 120V A (VIO) J8:4 J9:4 100V A (ORN) J8:5 J9:5 0V A (WHT) J8:6 J9:6 MAIN CONVERSION 12VD J10:6 TP14 POWER 8.25K ON/OFF J10:7...
  • Page 17 MCD550 BACKUP PS 751548 PCB...
  • Page 18 CONNECTOR 751567 SCH and PCB CHACK- J2:1 CHACK+ J2:2 J2:3 DOWN SW J1:1 J2:4 CLOSE SW UP SW J1:2 J2:5 3.3VD J1:3 J2:6 OPEN SW LOAD+ J1:4 3.3VD J3:1 J1:5 LOAD- FL SENS J3:2 FL LIM SENS J3:3 RE SENS J3:4 J3:5 LOAD+...
  • Page 19 MCD550 HEADPHONE 751451 SCH and PCB LEFT J2:4 J2:3 RIGHT J2:2 J2:1...
  • Page 20 NOTES...
  • Page 21: Parts List

    CABLE ASSY HEATSINK/CHASSIS 171965 CAP MONO .1UF 50V 20% SMD0805 061365 RECEPTACLE INPUT LINE FILTER 118033 TRANSFORMER POWER - CONTACT MCINTOSH CAP ELECT 47UF 16V 6.3X5 CASE 066380 LABORATORY, INC. CAP MONO .1UF 50V 20% SMD0805 061365 CAP MONO .1UF 50V 20% SMD0805...
  • Page 22 PARTS LIST (Cont’d.) MAIN PCB 751544 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. CAP ELECT 47UF 16V 6.3X5 CASE 066380 C159 CAP ELECT 470UF 16V 066508 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C160 CAP ELECT 4700UF 16V 20% LOW ESR 066611 CAP ELECT 47UF 16V 6.3X5 CASE 066380...
  • Page 23 MCD550 PARTS LIST (Cont’d.) MAIN PCB 751544 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. RES MF 1.65K 1% 1/4W 144516 TRANSISTOR NPN 2SD2704K SMD 132350 RES MF 1.65K 1% 1/4W 144516 TRANSISTOR NPN 2SD2704K SMD 132350...
  • Page 24 PARTS LIST (Cont’d.) MAIN PCB 751544 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. R111 RES MF 1K 1% 1/4W 144513 R170 RES MF 499 OHM 1% 1/4W 144510 R112 RES MF 1.65K 1% 1/4W 144516 R171 RES MF 499 OHM 1% 1/4W 144510 R113...
  • Page 25 IC DUAL AMP 5532 SMD 133718 LED GREEN 5MM 30 DEG 058190 IC DUAL AMP 5532 SMD 133718 VFD MCD550 13 DIGITS 058203 IC DUAL AMP 5532 SMD 133718 LED DUAL RED/GRN ROUND 5mm 058202 IC PLL MULTICLOCK GENERATOR SMD 133697...
  • Page 26 PARTS LIST (Cont’d.) DISPLAY PCB 751545 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. CAP ELECT 3300UF 35V 066509 RES SMD0805 47.5K 1/8W 1% 145013 CAP ELECT 3300UF 35V 066509 RES SMD0805 47.5K 1/8W 1% 145013 CAP MONO .1UF 50V 20% SMD0805 061365 RES SMD0805 47.5K 1/8W 1% 145013...
  • Page 27 MCD550 PARTS LIST (Cont’d.) POWER PCB 751547 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. RES SMD0805 2.74K 1/8W 1% 145025 FUSE 2A 250V SLO-BLO 5X20 IEC 089123 FUSE 0.5A SLO-BLO 5X20 IEC 089126 RES SMD0805 1.21K 1/8W 1% 145021 FUSE 0.5A SLO-BLO 5X20 IEC...
  • Page 28 PARTS LIST (Cont’d.) BACKUP PS PCB 751548 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. RES SMD0805 10K 1/8W 1% 145010 RES SMD0805 100K 1/8W 1% 145014 RES SMD0805 10K 1/8W 1% 145010 RES SMD0805 100K 1/8W 1% 145014 RES SMD0805 10K 1/8W 1% 145010...
  • Page 29: Repacking Instruction

    If a shipping carton or any of the interior 400159 #10-32 x 3/4” screw part(s) are needed, please call or write Customer 404080 #10 Flat washer Service Department of McIntosh Laboratory. Refer to page 3. Please see the Part List for the correct part numbers. FOAM PLUG...
  • Page 30 The continuous improvement of its products is the policy of McIntosh Laboratory Incorporated, who reserve the right to improve design without notice. Because of the constant upgrading of McIntosh products’ circuitry and components, the Company cannot insure, and does not warrant, the accuracy of the within schematic material, which is intended for information only.

This manual is also suitable for:

Adn1001