McIntosh C1100 Service Manual
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-50 -40 -30 -20
-10
-60
0
d B
O U T P U T L E V E L
HEADPHONES
Performance Specifications ..........................................2
Notes ...........................................................................2
Rear Panel ...................................................................3
Section Location ..........................................................4
Block Diagram .......................................................5 - 6
Interconnection Diagram ........................................7 - 8
Left Amplifier Schematic and PCB ........................9 - 18
Right Amplifier Schematic and PCB ....................19 - 28
Balanced I/O Schematic and PCB .......................29 - 32
SERVICE MANUAL
C1100
TUBE PREAMPLIFIER
SERIAL NO. AEF1001 And Above
C 1 1 0 0 T U B E P R E A M P L I F I E R
CONTENTS
-60
Left Phono Schematic and PCB ..................................33 - 34
Right Phono Schematic and PCB ........................35 - 36
Front Tube Schematic and PCB ...........................37 - 38
Headphone Schematic and PCB .........................39 - 42
Control Schematic and PCB ................................43 - 48
Lt Mtr/Rt Mtr/Panel Lt Schematic and PCB ..........49 - 52
Parts List .............................................................53 - 64
Repacking Instruction ................................................65
C1100
-50 -40 -30 -20
-10
0
d B
O U T P U T L E V E L

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Summary of Contents for McIntosh C1100

  • Page 1: Table Of Contents

    C1100 C1100 TUBE PREAMPLIFIER SERIAL NO. AEF1001 And Above C 1 1 0 0 T U B E P R E A M P L I F I E R -50 -40 -30 -20 -50 -40 -30 -20 O U T P U T L E V E L...
  • Page 2: Performance Specifications

    Cover Window) Phono MC, 0.45mV Power Requirements Signal To Noise Ratio (A-Weighted) Field AC Voltage conversion of the C1100 is not possible. The High Level - 107dB (Below rated output) C1100 is factory configured for one of the following AC Voltages: MM Phono - 77dB (Below 5mV input) 100 Volts, 50/60Hz at 75 watts MC Phono - 79dB (Below 0.5mV input)
  • Page 3: Rear Panel

    C 11 0 0 T U B E P R E A M P L I F I E R SERIAL TO C1100 CONTROLLER TO C1100 CONTROLLER McINTOSH LABORATORY, INC. BINGHAMTON, NY 13903 NUMBER RIGHT OUTPUT LEFT OUTPUT HANDCRAFTED IN USA WITH US AND IMPORTED PARTS...
  • Page 4: Section Location

    SECTION LOCATIONS Top View BALANCED I/O RIGHT LEFT AMPLIFIER AMPLIFIER RIGHT PHONO LEFT PHONO RIGHT METER LIGHT LEFT METER LIGHT PANEL LIGHT Bottom View FRONT TUBE HEADPHONE CONTROL...
  • Page 5: Block Diagram

    C1100 BLOCK DIAGRAM LEFT OUTPUTS LEFT INPUTS RIGHT INPUTS RIGHT OUTPUTS MAIN 1, 2 REC/FIXED BAL 1-6 UNBAL 1-4 MM PHONO MC PHONO MC PHONO MM PHONO UNBAL 1-4 BAL 1-6 REC/FIXED 1, 2 MAIN UNBALANCED UNBALANCED INPUT INPUT SELECTOR...
  • Page 6 INTERCONNECT BALANCED I/O BALANCED I/O CA17 CA14 RIGHT AMPLIFIER LEFT AMPLIFIER CA10 CA11 CA12 CA18 CA13 CA15 CA16 LEFT RIGHT FRONT LEFT RIGHT FRONT METER LIGHT METER LIGHT TUBE PHONO PHONO TUBE HEADPHONE CA22 CA24 CA21 CA19 CA23 CA20 PANEL LIGHT CONTROL...
  • Page 7 C1100 LEFT AMPLIFIER 751773 SCH 1 of 4 +7 .5V 1000µF 1000µF 1000pF 4.75k 1000pF 1000pF -7.5V J11:2 L MC IN J12:1 +7 .5V +7 .5V +7 .5V +7 .5V 220pF 51.1 J12:2 1000pF +7 .5V R100 NetTie4 -7.5V 1000µF 1000µF...
  • Page 8 LEFT AMPLIFIER 751773 SCH 2 of 4 J1:1 +3.3V 10µF +3.3V +3.3V +3.3V +3.3V UNB A L 1 +3.3V +3.3V +3.3V +3.3V +3.3V +3.3V .1µF 47.5k 100k UNBAL 1 +4.5V 22.1 I2C DA I2C CL 47.5k 100k 22.1 10µF UNB A L 2 J1:2 C101 C100...
  • Page 9 C1100 LEFT AMPLIFIER 751773 SCH 3 of 4 TUBE FRONT +18V OUT 2 +4.5V 47µF 22µF J9:13 +Out 2 U8:2 J9:14 221k -18V 22.1k 22.1k J8:17 -18V LA -18V J8:18 R116 + OUT J8:16 +18V LA OUT 1 +4.5V +18V J8:15 22µF...
  • Page 10 LEFT AMPLIFIER 751773 SCH 4 of 4 +12VM +12VM METER DRIVER J6:1 J6:2 U6:2 Mtr Ctr l J6:3 MTR CTRL J6:4 METER LOG AMP Meter J6:5 J6:6 R136 J6:7 J6:8 .01µF 68.1k 100k 2.21M Logo +12VM J6:9 47µF LOGO -4VM J6:10 MTR IN 475k...
  • Page 11 C1100 LEFT AMPLIFIER 751773 PCB...
  • Page 12 RIGHT AMPLIFIER 751774 SCH 1 of 4 +7.5V 1000µF 1000µF 1000pF 4.75k 1000pF 1000pF -7.5V J11:2 R MC IN J12:1 +7.5V +7.5V +7.5V +7.5V 220pF 51.1 NetTie1 J12:2 1000pF +7.5V R100 -7.5V 1000µF 1000µF 22pF +7.5V -7.5V .1µF .1µF R MM IN R106 J13:1 J13:2...
  • Page 13 C1100 RIGHT AMPLIFIER 751774 SCH 2 of 4 J1:1 +3.3V 10µF +3.3V +3.3V +3.3V +3.3V UNBAL 1 +3.3V +3.3V +3.3V +3.3V +3.3V +3.3V .1µF 47.5k 100k UNBAL 1 +4.5V 22.1 I2C DA I2C CL 47.5k 100k 22.1 10µF UNBAL 2...
  • Page 14 RIGHT AMPLIFIER 751774 SCH 3 of 4 FRONT TUBE +18V OUT 1 +4.5V 47µF 22µF J9:13 +Out 1 U8:2 J9:14 221k 22.1k 22.1k -18V J8:17 -18V -18V J8:18 R116 + O UT J8:16 +18V OUT 2 +4.5V +18V J8:15 22µF J9:5 + Out 2 I2C CL2...
  • Page 15 C1100 RIGHT AMPLIFIER 751774 SCH 4 of 4 +12V M +12V M METER DRIVER J6:1 J6:2 U6:2 J6:3 M tr Ctr l Mtr Ctrl J6:4 METER LOG AMP J6:5 M eter J6:6 R136 J6:7 J6:8 .01µF 68.1k 100k 2.21M Logo...
  • Page 16 RIGHT AMPLIFIER 751774 PCB...
  • Page 17 C1100 BALANCED I/O 751775 SCH L +OUT2 J2:5 R +OUT1 10µF L +OUT2 J1:4 BAL + J2:6 R +OUT1 L -OUT2 J1:5 BAL - J2:7 R -OUT1 10µF L BAL IN 2 R -OUT2 J1:18 J2:8 R BAL IN 1...
  • Page 18 BALANCED I/O 751775 PCB...
  • Page 19 C1100 LEFT PHONO 751778 SCH an PCB 47.5k 190V 180V 47.5k PHONO AMP 10pF 190V 190V 10µF 180V 475k J3:1 475k J3:12 .01µF V3:1 12AT7 J3:2 J3:11 1µF J1:1 V1:1 -17V V1:2 J3:4 MM IN J13:1 J3:9 12AX7A 12AX7A J1:2...
  • Page 20 RIGHT PHONO 751779 SCH and PCB 47.5k 190V 180V 47.5k PHONO AMP 10pF 190V 190V 10µF 180V 475k J3:1 475k J3:12 .01µF V3:1 12AT7 J3:2 J3:11 1µF J1:1 V1:1 V1:2 MC IN -17V J3:4 J12:1 12AX7A 12AX7A J3:9 J1:2 J3:6 J12:2 J3:7 -17V...
  • Page 21 C1100 FRONT TUBE 751777 SCH and PCB + MAIN AMP 190V 190V 190V 475k V2:1 12AT7 V2:2 12AT7 V1:1 12AX7A .22µF J1:4 + OUT J1:10 + IN J9:9 J7:3 .95V J1:5 47µF + OUT J1:11 J7:8 + IN J7:2 150k 4.75k...
  • Page 22 HEADPHONE 751776 SCH 6-32 +18HPL +18HPL +18VL 4.75k .1µF 2.21k J1:1 L+ HP +18HPL 1.1k 47.5k .1µF 1000µ F 47.5 -18VL L HEAD PHONE AMP HDPHL .1µF 1.1k J1:2 L- HP 47.5 .22µF -18HPL Mode Selection J2:2 H X D 1.82k J2:3 HP 6...
  • Page 23 C1100 HEADPHONE 751776 PCB...
  • Page 24 CONTROL 751781 SCH 1 of 2 J2:1 +3.3V M 190V L 220pF USB1 - USB1 + USB - USB + J2:3 + 18V LA 1000pF USB1 - J2:16 +5V R J3:1 -18V LA USB1 + -18V LA J3:2 J2:4 .1µF -18V LA GN D 1000pF...
  • Page 25 C1100 CONTROL 751781 SCH 2 of 2 TUBE BLU TUBE BLU TUBE BLUE TUBE BLUE J6:1 J7:1 J8:3 18V RA +18VRA TUBE GRN TUBE GRN TUBE GREEN TUBE GREEN J6:2 J7:2 J8:4 -18V RA +3.3V -18VRA TUBE RED TUBE RED...
  • Page 26 CONTROL 751781 PCB...
  • Page 27 C1100 LEFT METER LIGHT/RIGHT METER LIGHT/PANEL LIGHT 710287 SCH PANEL LIGHTS RIGHT METER LIGHTS LEFT METER LIGHTS 1.5k 1.5k DS1:3 DS2:3 1.5k 1.5k 3.92k 3.92k DS3:3 DS4:3 DS1:2 DS2:2 3.92k 3.92k DS3:2 DS4:2 DS1:1 DS2:1 DS3:1 DS4:1 Logo 1.5k 1.5k...
  • Page 28 LEFT METER LIGHT/RIGHT METER LIGHT/PANEL LIGHT 710287 PCB...
  • Page 29: Parts List

    C1100 PARTS LIST INTERCONNECT Ref. No. Description Part No. Ref. No. Description Part No. CAP MPF 0.1UF 5% 63VDC 064325 CABLE FFC 18 CONDUCTOR 70MM 171317 CAP ELECT 47UF 35V 066446 CABLE FFC 18 CONDUCTOR 70MM 171317 CABLE FFC 18 CONDUCTOR 70MM...
  • Page 30 PARTS LIST (Cont’d.) LEFT AMPLIFIER PCB 751773 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. CONN 18 PIN FFC SMD 118003 CAP 47pF 200V 10% NPO SMD0805 061368 JACK DUAL RCA 118020 CAP MONO .1uF 50V +/-20% X7R SMD 061365 CONN 12 PIN FFC SMD 118001...
  • Page 31 C1100 PARTS LIST (Cont’d.) LEFT AMPLIFIER PCB 751773 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. TRANSISTOR NPN A05 SMD 132333 RES SMD0805 100K 1/8W 1% 145014 TRANSISTOR NPN A05 SMD 132333 RES SMD0805 100 1/8W 1%...
  • Page 32 PARTS LIST (Cont’d.) LEFT AMPLIFIER PCB 751773 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. CAP 22pF 200V 10% NPO SMD0805 061367 R114 RES SMD0805 3.32K 1/8W 1% 145026 R115 RES SMD0805 3.32K 1/8W 1% 145026 CAP MPF 0.47UF 5% 100VDC 064442 R116 RES MF 681 OHM 1% 1/4W...
  • Page 33 C1100 PARTS LIST (Cont’d.) RIGHT AMPLIFIER PCB 751774 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. CAP NPO 1000pF 100V 5% SMD0805 061391 DIODE SMALL SIGNAL 4148 SMD 070199 CAP 220pF 200V 10% NPO SMD0805 061369 DIODE SMALL SIGNAL 4148 SMD...
  • Page 34 PARTS LIST (Cont’d.) RIGHT AMPLIFIER PCB 751774 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. RES SMD0805 2.21M 1/8W 1% 145043 TRANSISTOR NPN 2SC4694 SMD 132336 RES SMD0805 1K 1/8W 1% 145007 TRANSISTOR PCH MMBFJ176 SMD 132355 TRANSISTOR PCH MMBFJ176 SMD 132355 RES SMD0805 475K 1/8W 1%...
  • Page 35 C1100 PARTS LIST (Cont’d.) RIGHT AMPLIFIER PCB 751774 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. RES SMD0805 10K 1/8W 1% 145010 IC REG POS ADJ 1.5A SMD 133822 IC REG NEG ADJ 1.5A SMD 133821 RES SMD0805 10K 1/8W 1%...
  • Page 36 PARTS LIST (Cont’d.) BALANCED I/O PCB 751775 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. RES SMD0805 47.5K 1/8W 1% 145013 RES MF 75K 1% 1/4W 144552 RES SMD0805 47.5K 1/8W 1% 145013 RES SMD0805 1M 1/8W 1% 145042 RES SMD0805 47.5K 1/8W 1% 145013...
  • Page 37 C1100 PARTS LIST (Cont’d.) RIGHT PHONO PCB 751779 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. RES MF 475K 1% 1/4W 144604 RES TF 1K 1% 0.1W SMD0805 145117 RES MF 475K 1% 1/4W 144604 RES MF 150K 1% 1/4W 144627 RES SMD0805 4.75K 1/8W 1%...
  • Page 38 PARTS LIST (Cont’d.) HEADPHONE PCB 751776 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. RELAY REED SPST-NO 5V 1.2A 087078 RES MF 47.5K 1% 1/4W 144526 CONNECTOR 3PIN HEADER 2MM 118013 RES FP 10 OHM 5% 1/4W 137105 CONN 18 PIN FFC SMD 118003...
  • Page 39 C1100 PARTS LIST (Cont’d.) CONTROL PCB 751781 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. TRANSISTOR NPN A05 SMD 132333 CAP MONO OPEN SMD0805 TRANSISTOR NPN A05 SMD 132333 CAP NPO 1000pF 100V 5% SMD0805 061391 TRANSISTOR NPN A05 SMD...
  • Page 40 PARTS LIST (Cont’d.) CONTROL PCB 751781 (Cont’d.) Ref. No. Description Part No. Ref. No. Description Part No. IC SINGLE 2-INPUT AND GATE SMD 133552 PCB1 PC BD METER/LIGHT 130288 IC SINGLE 2-INPUT AND GATE SMD 133552 RES SMD0805 1.5K 1/8W 1% 145022 IC SINGLE 2-INPUT AND GATE SMD 133552...
  • Page 41: Repacking Instruction

    Service Department of McIntosh Laboratory. Please see the Part List for the correct part num- bers. Note: The McIntosh C1100C Controller and C1000T Tube Preamplifier use the same shipping carton. The C1100C Controller Shipping Carton also includes the “C1100C Accessories” separate package.
  • Page 42 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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