McIntosh D150 Service Manual
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McIntosh D150 Service Manual

McIntosh D150 Service Manual

Digital preamplifier
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Table of Contents

Performance Specifications ..........................................2
Notes ...........................................................................2
Rear Panel ...................................................................3
Section Location ..........................................................4
Block Diagram .......................................................5 - 6
Interconnection Diagram ........................................7 - 8
Power Schematic and PCB ....................................9 - 12
SERVICE MANUAL
D150
DIGITAL PREAMPLIFIER
SERIAL NO. AEA1001 And Above
CONTENTS
Main Schematic and PCB ...................................13 - 24
Display Schematic and PCB................................25 - 28
Control Schematic and PCB ................................29 - 30
Headphone Schematic and PCB .........................31 - 32
Parts List .............................................................33 - 39
Repacking Instruction ................................................41
D150

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Summary of Contents for McIntosh D150

  • Page 1: Table Of Contents

    D150 D150 DIGITAL PREAMPLIFIER SERIAL NO. AEA1001 And Above CONTENTS Performance Specifications ..........2 Main Schematic and PCB ........13 - 24 Notes ................2 Display Schematic and PCB........25 - 28 Rear Panel ..............3 Control Schematic and PCB ........29 - 30 Section Location ............4 Headphone Schematic and PCB ......31 - 32...

  • Page 2: Performance Specifications

    230 Volts, 50/60Hz at 30 watts Dynamic Range 240 Volts, 50/60Hz at 30 watts 100dB Standby Power, less than 0.25 watts Note: Refer to the rear panel of the D150 for the correct Output Impedance voltage. 600 ohms Unbalanced and Balanced Overall Dimensions Headphone Load Impedance Width is 17-1/2 inches (44.45cm)

  • Page 3: Rear Panel

    D150 REAR PANEL...

  • Page 4: Section Location

    SECTION LOCATION TOP VIEW MAIN POWER HEADPHONE REAR VIEW OF FRONT PANEL CONTROL DISPLAY...

  • Page 5: Block Diagram

    D150 DIGITAL PREAMPLIFIER BLOCK DIAGRAM RELAY TRANSFORMER TRANSFORMER FUSE CONTROL/ POWER 50/60Hz BACKUP POWER -15V POWER MAIN 120VAC SUPPLY SUPPLY LOW VOLTAGE STANDBY MULTI CONTROL LOW VOLTAGE CONTROL POWER POWER 3.3V IR IN DATA IN SENSOR REMOTE CONTROL DRIVER SYSTEM CONTROL...
  • Page 6 INTERCONNECT 120V AC MAIN 50/60Hz 171723 CA7 171546 CA6 171547 POWER CA8173169 CONTROL DISPLAY HEADPHONE...
  • Page 7 D150 DIGITAL PREAMPLIFIER 2 POWER 751702 SCH TRANSFORMER SECONDARY PRIMARY LINE VOLTAGE 3.3VD J6:1 100-120VAC 50/60Hz 20W T1AL 220-240VAC 50/60Hz 20W T500mAL J6:2 3.3V REGULATOR 1.5K J6:6 3.3VD .01µF J6:4 BOOT -32V J6:7 IADJ 15µH J6:8 FIL6VAC J6:5 FIL6VAC J6:3...
  • Page 8 2 POWER 751702 PCB...
  • Page 9 D150 DIGITAL PREAMPLIFIER 3 MAIN 751703 SCH 1 OF 5 J5:10 RESET DATA CLOCK LATCH CSINT 3.3VD J5:9 CLKB J5:7 3.3VD J14:8 J5:5 3.3VD 100K J14:9 RSTB J5:3 3.3VD J14:10 J5:4 .1UF .1UF 22.1 HMUTE J14:12 NS3.3V J5:11 1µF MUTE...
  • Page 10 3 MAIN 751703 SCH 2 OF 5 100µH 3.3VD 100µH VOUT COAXIAL1 IN .01µF .01µF COAXIAL2 IN RXP3 OLRCK .01µF RXP2 OSCLK 47.5 RXP1 SDOUT SRC_UNLOCK OPTICAL1 IN RXP0 OMCK 27MHz SAIF .01µF 47.5K 47.5 OPT1 RMCK SAOF 3.32K R152 .01µF AGND DGND...
  • Page 11 D150 DIGITAL PREAMPLIFIER 3 MAIN 751703 SCH 3 OF 5 C153 .1µF DSD 128 FLAG PW R DSD FLAG SO F FLAG USB, DIN SAC D ON/OFF A/ B 3.3VD I2SL RCK USB_ N G N D R227 4.75k C ASE...
  • Page 12 3 MAIN 751703 SCH 4 OF 5 R214 1.21k LEFT+ -14.5VA BALANCED OMUTE R246 1.21k OUTPUT DRIV ER C103 R106 R130 R136 -14.5VA 47µF 1.65k 47µF U22:1 AUTOMUTE .001uF 47µF 560pF 3.3VD1 14.5VA LEFT+ .1UF 14.5VA 14.5VA R251 R100 -3.3V R142 1.65k 1.21k...
  • Page 13 D150 DIGITAL PREAMPLIFIER 3 MAIN 751703 SCH 5 OF 5 VARIABLE LEFT+ -14.5VA OMUTE BALANCED OUTPUT DRIVER C132 R170 R176 47µF VARIABLE U27:1 LEFT BALANCED 47µF OUTPUT C126 R182 14.5VA R148 R149 VARIABLE LEFT- BALANCED OUTPUT DRIVER C133 LEFT R171 R177 47µF...
  • Page 14 3 MAIN 751703 PCB...
  • Page 15 D150 DIGITAL PREAMPLIFIER 4 DISPLAY 751445 SCH -32V J1:7 J1:4 FIL6VAC J1:5 FIL6VAC J1:3 3.3VD J1:1 J1:6 J1:2 J1:8 SG20 SG19 SG18 SG17 SG16 MUTE J3:18 SG15 SG14 MUTE LED J3:17 SG13 GR10 SG12 RSTB J3:16 GR11 SG11 GR12 SG10...
  • Page 16 4 DISPLAY 751445 PCB...
  • Page 17 D150 DIGITAL PREAMPLIFIER 5 CONTROL 751446 SCH and PCB J1:1 INPUT CCW J1:9 INPUT CW J1:7 LEV-D J1:5 J1:2 J1:4 LEV-U J1:3 .1µF J1:6 J1:8 .1µF J1:10 J1:11 J1:12...
  • Page 18 6 HEADPHONE 751664 SCH and PCB LEFT J2:4 J2:3 RIGHT J2:2 J2:1...

  • Page 19: Parts List

    070208 CABLE 8 COND FLAT FLEXIBLE 171546 DIODE RECTIFIER 400V 1A SMD 070208 CABLE ASSY HEADPHONE 173169 ASSY POWER TRANSFORMER (CONTACT MCINTOSH) DIODE RECTIFIER 400V 1A SMD 070208 A/C LINE FILTER 3A 118033 DIODE RECTIFIER 400V 1A SMD 070208 DIODE RECTIFIER 400V 1A SMD...
  • Page 20 PARTS LIST (Cont’d.) POWER PCB 751702 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. CAP MONO .1uF 50V ±20% X7R SMD 061365 RES MF 2.74K 1% 1/4W 144587 CAP MPF 0.01UF 5% 63VDC 064312 RES SMD0805 1K 1/8W 1% 145007 CAP MPF 0.001UF 5% 400VDC 064453...
  • Page 21 D150 PARTS LIST (Cont’d.) MAIN PCB 751703 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. CAP ELECT 10UF 16V 066580 C157 CAP MONO .1uF 50V ±20% X7R SMD 061365 CAP ELECT 10UF 16V 066580 C158 CAP MONO .1uF 50V ±20% X7R SMD 061365 CAP ELECT 47UF 16V 6.3X5 CASE...
  • Page 22 PARTS LIST (Cont’d.) MAIN PCB 751703 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. DIODE SMALL SIGNAL 4148 SMD 070199 TRANSISTOR NPN 2SD2704K SMD 132350 DIODE SMALL SIGNAL 4148 SMD 070199 TRANSISTOR NPN 2SD2704K SMD 132350 LED BLU/GRN SMD 058201 TRANSISTOR NPN 2SD2704K SMD 132350...
  • Page 23 D150 PARTS LIST (Cont’d.) MAIN PCB 751703 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. RES SMD0805 10K 1/8W 1% 145010 R115 RES MF 10K 1% 1/4W 144504 RES SMD0805 100 1/8W 1% 145005 R116 RES MF 1.65K 1% 1/4W 144516 RES SMD0805 47.5K 1/8W 1%...
  • Page 24 PARTS LIST (Cont’d.) MAIN PCB 751703 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. R239 RES SMD0805 10K 1/8W 1% 145010 R176 RES MF 100 OHM 1% 1/4W 144568 R240 RES SMD0805 47.5 1/8W 1% 145004 R177 RES MF 100 OHM 1% 1/4W 144568 R241...
  • Page 25 D150 PARTS LIST (Cont’d.) MAIN PCB 751703 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. IC DUAL AMP 5532 SMD 133718 (DS6) SPACER LED .180 IN 163142 IC CONVE S-RATE 32BIT 192K SMD 133765 CONNECTOR FFC 8 PIN 117915 IC 2.5V 500mA LDO REGULAT SMD...
  • Page 26 NOTES...

  • Page 27: Repacking Instruction

    #10-32 x 3/4” screw dition. If a shipping carton or any of the interior 404080 #10 Flat washer part(s) are needed, please call or write Customer Service Department of McIntosh Laboratory. Please see the Part List for the correct part num- bers.
  • Page 28 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.

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