McIntosh C1000 Service Manual
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McIntosh C1000 Service Manual

McIntosh C1000 Service Manual

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See also: Owner's Manual , Manual
Performance Specifications ........................................ 2
Notes ......................................................................... 2
Rear Panel .................................................................. 3
Section Location ........................................................ 3
Block Diagram ........................................................... 4
Interconnection Diagram ...................................... 5 - 6
Main Left Schematic and PCB ............................ 7 - 18
Main Right Schematic and PCB ........................ 19 - 30
Phono ............................................................... 31 - 32
C1000
TUBE PREAMPLIFIER
SERIAL NO. WH1000 And Above
CONTENTS
Serial Number WH1001 And Above
Balanced I/O Left Schematic and PCB .............. 33 - 34
Balanced I/O Right Schematic and PCB ............ 35 - 36
Balanced Switching Left Schematic and PCB .... 37 - 38
Balanced Switching Right Schematic and PCB .. 39 - 40
Meter Schematic and PCB ................................. 41 - 42
Headphone Schematic and PCB ....................... 43 - 44
Parts List ............................................................ 47 - 56
Repacking Instructions ............................................. 57
C1000
TUBE PREAMPLIFIER

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  • Page 1: Table Of Contents

    C1000 TUBE PREAMPLIFIER C1000 TUBE PREAMPLIFIER SERIAL NO. WH1000 And Above CONTENTS Performance Specifications ........2 Balanced I/O Left Schematic and PCB ....33 - 34 Notes ................. 2 Balanced I/O Right Schematic and PCB .... 35 - 36 Rear Panel ..............3 Balanced Switching Left Schematic and PCB ..

  • Page 2: Performance Specifications

    Tube Compliment 230 Volts, 50/60Hz at 120 watts Phono Circuitry: 240 Volts, 50/60Hz at 120 watts 4 - 12AX7A Note: Refer to the rear panel of the C1000 Controller for the High Level Circuitry: correct voltage. 4 - 12AX7A Overall Dimensions...

  • Page 3: Rear Panel

    C1000 TUBE PREAMPLIFIER REAR PANEL SECTION LOCATIONS TOP VIEW WITH COVER REMOVED...

  • Page 4: Block Diagram

    BLOCK DIAGRAM...
  • Page 5 C1000 TUBE PREAMPLIFIER INTERCONNECT...
  • Page 6 2 MAIN LEFT 050109 SCH 1 OF 5...
  • Page 7 C1000 TUBE PREAMPLIFIER 2 MAIN LEFT 050109 SCH 2 OF 5...
  • Page 8 2 MAIN LEFT 050109 SCH 3 OF 5...
  • Page 9 C1000 TUBE PREAMPLIFIER 2 MAIN LEFT 050109 SCH 4 OF 5...
  • Page 10 2 MAIN LEFT 050109 SCH 5 OF 5...
  • Page 11 C1000 TUBE PREAMPLIFIER 2 MAIN LEFT 050109 PCB...
  • Page 12 3 MAIN RIGHT 050111 SCH 1 OF 5...
  • Page 13 C1000 TUBE PREAMPLIFIER 3 MAIN RIGHT 050111 SCH 2 OF 5...
  • Page 14 3 MAIN RIGHT 050111 SCH 3 OF 5...
  • Page 15 C1000 TUBE PREAMPLIFIER 3 MAIN RIGHT 050111 SCH 4 OF 5...
  • Page 16 3 MAIN RIGHT 050111 SCH 5 OF 5...
  • Page 17 C1000 TUBE PREAMPLIFIER 3 MAIN RIGHT 050111 PCB...

  • Page 18: Phono

    4 PHONO 050110 SCH and PCB...
  • Page 19 C1000 TUBE PREAMPLIFIER 5 BALANCED I/O LEFT 050198 SCH and PCB...
  • Page 20 6 BALANCED I/O RIGHT 050199 SCH and PCB...
  • Page 21 C1000 TUBE PREAMPLIFIER 7 BALANCED SWITCHING LEFT 050108 SCH and PCB...
  • Page 22 8 BALANCED SWITCHING RIGHT 050155 SCH and PCB...
  • Page 23 TUBE PREAMPLIFIER 9 METER 050106 SCH and PCB METER ADJUSTMENT PROCEDURE Apply a 1kHz signal to both channels. Adjust the level for 2.5VAC at L and R SPKR1 unbalanced output. Adjust R13 for 0dB on the C1000 left and right meters...
  • Page 24 10 HEADPHONE 050262 SCH and PCB...

  • Page 25: Parts List

    C1000 TUBE PREAMPLIFIER PARTS LIST Ref. No. Description Part No. CAP ELECT 10UF 50V 066445 MAIN LEFT PCB 050109 CAP ELECT 10UF 50V 066445 Ref. No. Description Part No. CAP MONO .1UF 50V 20% Z5U 061346 CAP ELECT 220UF 25V...
  • Page 26 PARTS LIST Cont’d Ref. No. Description Part No. RIVET 1/8 X 3/16 STEEL 108011 MAIN LEFT PCB 050109 (Cont’d) PCB1 PC BD MAIN L 129542 Ref. No. Description Part No. TRANSISTOR NPN 2K/REEL 132317 C167 CAP ELECT 47UF 35V 066446 TRANSISTOR SI NPN 25V 132257 C168...
  • Page 27 C1000 TUBE PREAMPLIFIER PARTS LIST Cont’d Ref. No. Description Part No. R132 RES MF 11K 1% 1/4W 144523 MAIN LEFT PCB 050109 (Cont’d) R133 RES MF 1.5K 1% 1/4W 144539 Ref. No. Description Part No. R134 RES MF 1.5K 1% 1/4W...
  • Page 28 PARTS LIST Cont’d Ref. No. Description Part No. CAP MONO .1UF 50V 20% Z5U 061346 MAIN LEFT PCB 050109 (Cont’d) DIODE SIL 400 PIV @ 1.5A 070031 Ref. No. Description Part No. CAP MONO .1UF 50V 20% Z5U 061346 CAP ELECT 4.7UF 50V 066512 R207 RES MF 182 OHM 1/4W 1%...
  • Page 29 C1000 TUBE PREAMPLIFIER PARTS LIST Cont’d Ref. No. Description Part No. (DS2) LED SPACER .125 THK 017672 MAIN RIGHT PCB 050111 (Cont’d) BRACKET PCB CARD MOUNTING 003611 Ref. No. Description Part No. (GP1) RIVET 1/8X3/16 STEEL 108011 C111 CAP MONO .1UF 50V 20% Z5U...
  • Page 30 PARTS LIST Cont’d Ref. No. Description Part No. RES MF 1K 1% 1/4W 144513 MAIN RIGHT PCB 050111 (Cont’d) RES MF 1K 1% 1/4W 144513 Ref. No. Description Part No. RES MF 2.21K 1% 1/4W 144584 TRANSISTOR NPN 2K/REEL 132317 RES MF 2.21 OHM 1/4W 1% 144607 TRANSISTOR NPN 2K/REEL...
  • Page 31 C1000 TUBE PREAMPLIFIER PARTS LIST Cont’d Ref. No. Description Part No. IC OCTAL DARLNGTON TRANS ARRAY133258 MAIN RIGHT PCB 050111 (Cont’d) (U5) SOCKET IC 18-PIN DIP 178184 Ref. No. Description Part No. IC OCTAL DARLNGTON TRANS ARRAY 133258 R144 RES MF 1K 1% 1/4W...
  • Page 32 PARTS LIST Cont’d Ref. No. Description Part No. IC OPERATIONAL AMP LOW NOISE 133067 PHONO PCB 050110 (Cont’d) (V1) SOCKET 9 PIN TUBE CERAMIC 178170 (V2) SOCKET 9 PIN TUBE CERAMIC 178170 Ref. No. Description Part No. ASSY INSERTION PCB PHONO 701082 CAP ELECT 10UF 50V 066445...
  • Page 33 C1000 TUBE PREAMPLIFIER PARTS LIST Cont’d Ref. No. Description Part No. RES MF 221 OHM 1% 1/4W 144559 BALANCE I/O LEFT PCB 050198 (Cont’d) RES MF 221 OHM 1% 1/4W 144559 Ref. No. Description Part No. RES MF 221 OHM 1% 1/4W...
  • Page 34 PARTS LIST Cont’d Ref. No. Description Part No. CAP MONO 22PF 200V 10% NPO 061339 BALANCE SWITCHING LEFT PCB 050108 (Cont’d) CAP MONO 100PF 100V 10% NPO 061341 Ref. No. Description Part No. CAP MONO 100PF 100V 10% NPO 061341 RELAY REED FORM 1A 5V 500 OHMS 087050 CAP MONO 100PF 100V 10% NPO 061341...
  • Page 35 C1000 TUBE PREAMPLIFIER PARTS LIST Cont’d Ref. No. Description Part No. RES MF 10 OHM 1% 1/4W 144553 METER PCB 050106 (Cont’d) RES MF 10K 1% 1/4W 144504 Ref. No. Description Part No. RES MF 22.1K 1% 1/4W 144564 CAP MONO 22PF 200V 10% NPO...

  • Page 37: Repacking Instructions

    C1000 TUBE PREAMPLIFIER REPACKING INSTRUCTIONS...

  • Page 38: Service Manual

    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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