How it Works
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McIntosh C-220 Service manual

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Page 1
C220
C220
TUBE PREAMPLIFIER
SERIAL NO. WS1001 And Above
CONTENTS
Performance Specifications ........................................ 2
Notes ......................................................................... 2
Rear Panel .................................................................. 3
Section Location ........................................................ 3
Block Diagram ...................................................... 5 - 6
Interconnection Diagram ...................................... 7 - 8
Main Schematic and PCB ................................... 9 - 18
SERVICE MANUAL
Seri al Num be r W S1 0 01 And A bo ve
Balanced/Data Sch and PCB .............................. 25 - 30
Pushbutton Sch and PCB .................................. 31 - 32
Headphone Sch and PCB ................................. 33 - 34
Parts List ............................................................ 37 - 43
Repacking Instructions ............................................. 45
Page 2
PERFORMANCE SPECIFICATIONS
Frequency Response
+0, -0.5dB from 20Hz to 20,000Hz
Total Harmonic Distortion
0.08% from 20Hz to 20,000Hz
Main Output
2.5V for rated input
Maximum Voltage Output
8V RMS Unbalanced, 16V RMS Balanced
Sensitivity (for rated output)
High Level, 450mV unbalanced, 900mV balanced Phono, 4.5mV
Signal To Noise Ratio (A-Weighted)
High Level, 90dB below rated output Phono, 80dB below 10mV input
Input Impedance
High Level, 22K ohms Phono, 47K ohms; 65pF
Maximum Input Signal
High Level, 5V Unbalanced, 10V Balanced Phono, 50mV (@ 1,000Hz)
Headphone Output Impedance
16 ohms to 250 ohms
Tube Compliment
Phono Circuitry: 2 - 12AX7A High Level Circuitry: 2 - 12AX7A
Power Requirements
100 Volts, 50/60Hz at 75 watts 110 Volts, 50/60Hz at 75 watts 120 Volts, 50/60Hz at 75 watts 220 Volts, 50/60Hz at 75 watts 230 Volts, 50/60Hz at 75 watts 240 Volts, 50/60Hz at 75 watts
Note: Refer to the rear panel of the C220 for the correct voltage.
Overall Dimensions
Width is 17-1/2 inches (44.45cm) Height is 6 inches (15.24cm) including feet Depth is 18 inches (45.72cm) including the Front Panel, Knobs and Cables
Weight
21.1 pounds (9.59 kg) net, 37.5 pounds (17.05 kg) in shipping carton
Output Impedance
250 ohms
Voltage Gain
High Level to Tape Output: 0dB High Level to Main Output: 15dB Phono to Main Output: 55dB
NOTES
1. The heavy notes on the schematic denote the primary
signal path.
2. Unless otherwise noted, all voltages indicated on the schematics are measured under the following conditions: a. AC input at 120 volts, 50/60Hz. b. All voltages are +/-10% with respect to ground. A
high impedance (10 megaohm) voltmeter must be used.
3. Unless otherwise specified: a. Resistor values are in ohms. b. Capacitor values are microfarads (uF). c. Inductor values are in microhenries (uH).
Shipping Carton Dimensions
Width is 26-1/2 inches (67.3cm) Depth is 24-1/4 inches (62.2cm) Height is 11-3/4 inches (29.9cm)
4. On PC board drawings, Square pad indicates: a. Polarized Capacitors - Positive b. Diodes - Cathode c. Others - Pin 1
5. WARNING Parts marked with the symbol have critical characteristics. Use only replacement parts recom­mended by the manufacturer.
2
Page 3
REAR PANEL
SECTION LOCATIONS
TOP VIEW WITH COVER REMOVED
C220
3
Page 4
NOTES
4
Page 5
BLOCK DIAGRAM
C220
5 6
Page 6
INTERCONNECT
7 8
Page 7
C220
2
MAIN 050329 SCH 1 OF 4
9 10
Page 8
MAIN 050329 SCH 2 OF 4
2
11 12
Page 9
C220
2
MAIN 050329 SCH 3 OF 4
13 14
Page 10
2
MAIN 050329 SCH 4 OF 4
15 16
Page 11
C220
2
MAIN 050329 PCB
17 18
Page 12
3
DISPLAY 050330 SCH 1 of 3
19 20
Page 13
C220
3
DISPLAY 050330 SCH 2 of 3
21 22
Page 14
3
DISPLAY 050330 SCH 3 of 3 and PCB
23 24
Page 15
C220
4
BALANCED / DATA 051331 SCH 1 of 2
25 26
Page 16
4
BALANCED / DATA 050331 SCH 2 of 2
27 28
Page 17
C220
4
BALANCED / DATA 050331 PCB
29 30
Page 18
5
PUSHBUTTON 051332 SCH and PCB
31 32
Page 19
C220
6
HEADPHONE 051333 SCH and PCB
33 34
Page 20
NOTES
35 36
Page 21
PARTS LIST
2
MAIN PCB 050329 Ref No. Description Part No.
C1 CAP ELECT 10UF 50V 066445 C2 CAP MPF 0.1UF 630VDC 064431 C3 CAP MONO 47PF 200V 10% NPO 061340 C4 CAP MONO 47PF 200V 10% NPO 061340 C5 CAP ELECT 22UF 100V 066574 C6 CAP POLYPROP 1UF 20% 250VDC 064433 C8 CAP ELECT 10UF 50V 066445 C7 CAP ELECT 1UF 50V 066510 C9 CAP ELECT 47UF 35V 066446 C10 CAP MONO 47PF 200V 10% NPO 061340 C11 CAP MONO 47PF 200V 10% NPO 061340 C12 CAP MONO 1000PF 50V 10% NPO 061344 C13 CAP MONO 1000PF 50V 10% NPO 061344 C14 CAP MONO 1000PF 50V 10% NPO 061344 C15 CAP MONO 1000PF 50V 10% NPO 061344 C16 CAP ELECT 10UF 50V 066445 C17 CAP ELECT 47UF 35V 066446 C18 CAP DISC MONO .47UF 50V 061320 C19 CAP MONO .1UF 50V 20% Z5U 061346 C20 CAP MONO .1UF 50V 20% Z5U 061346 C21 CAP ELECT 47UF 450V 066497 C22 CAP ELECT 47UF 35V 066446 C23 CAP ELECT 47UF 450V 066497 C24 CAP ELECT 1UF 50V 066510 C25 CAP MONO .1UF 50V 20% Z5U 061346 C26 CAP ELECT 10UF 50V 066445 C28 CAP MONO .1UF 50V 20% Z5U 061346 C29 CAP ELECT 10UF 250V 066493 C30 CAP ELECT 4700UF 066443 C31 CAP MONO 220PF 200V 10% NPO 061342 C32 CAP MONO 1000PF 50V 10% NPO 061344 C33 CAP MONO 1000PF 50V 10% NPO 061344 C34 CAP MONO 1000PF 50V 10% NPO 061344 C35 CAP MONO 1000PF 50V 10% NPO 061344 C36 CAP MPF 0.1UF 630VDC 064431 C37 CAP ELECT 10UF 50V 066445 C39 CAP POLYPROP 1UF 20% 250VDC 064433 C40 CAP ELECT 1UF 50V 066510 C41 CAP ELECT 47UF 35V 066446 C42 CAP MPF 0.1UF 630VDC 064431 C43 CAP ELECT 10UF 16V 066580 C44 CAP MONO 220PF 200V 10% NPO 061342 C45 CAP MONO 47PF 200V 10% NPO 061340 C46 CAP POLYPROP 1UF 20% 250VDC 064433 C47 CAP ELECT 1UF 50V 066510 C48 CAP ELECT 100UF 25V 066573 C49 CAP ELECT 10UF 16V 066580 C50 CAP MONO .1UF 50V 20% Z5U 061346 C51 CAP ELECT 100UF 25V 066573 C52 CAP ELECT 10UF 16V 066580 C53 CAP PF 0.001UF 5% 63VDC C54 CAP MPF 0.0033UF 5% 63VDC 064306 C55 CAP ELECT 10UF 16V 066580 C56 CAP MPF 0.1UF 630VDC 064431
064453
C220
Ref No. Description Part No.
C57 CAP ELECT 10UF 16V 066580 C58 CAP MONO 47PF 200V 10% NPO 061340 C59 CAP POLYPROP 1UF 20% 250VDC 064433 C60 CAP ELECT 1UF 50V 066510 C61 CAP ELECT 10UF 250V 066493 C62 CAP ELECT 100UF 25V 066573 C63 CAP ELECT 10UF 16V 066580 C64 CAP ELECT 100UF 25V 066573 C65 CAP ELECT 10UF 16V 066580 C66 CAP PF 0.001UF 5% 63VDC 064453 C67 CAP MPF 0.0033UF 5% 63VDC 064306 C68 CAP ELECT 10UF 16V 066580 C69 CAP ELECT 10UF 16V 066580 C70 CAP MONO 100PF 100V 10% NPO 061341 C71 CAP ELECT 10UF 16V 066580 C72 CAP MONO .1UF 50V 20% Z5U 061346 C73 CAP MONO .1UF 50V 20% Z5U 061346 C74 CAP MONO 100PF 100V 10% NPO 061341 C75 CAP ELECT 10UF 16V 066580 C76 CAP MONO 100PF 100V 10% NPO 061341 C77 CAP ELECT 10UF 16V 066580 C78 CAP ELECT 10UF 16V 066580 C79 CAP ELECT 10UF 16V 066580 C80 CAP MONO 100PF 100V 10% NPO 061341 C81 CAP ELECT 10UF 16V 066580 C82 CAP MONO 100PF 100V 10% NPO 061341 C83 CAP ELECT 10UF 16V 066580 C84 CAP MONO 100PF 100V 10% NPO 061341 C85 CAP ELECT 10UF 16V 066580 C86 CAP ELECT 10UF 16V 066580 C87 CAP MONO .1UF 50V 20% Z5U 061346 C88 CAP ELECT 220UF 50V 20% 066254 C89 CAP POLYPROP .047UF 10% 250VDC 064364 C90 CAP ELECT 220UF 50V 20% 066254 C91 CAP MONO .1UF 50V 20% Z5U 061346 C92 CAP ELECT 1UF 50V 066510 C93 CAP ELECT 2200UF 50V 20% 066440 C94 CAP MONO .1UF 50V 20% Z5U 061346 C95 CAP ELECT 10UF 50V 066445 C96 CAP ELECT 2200UF 50V 20% 066440 C97 CAP ELECT 10UF 50V 066445 C98 CAP MONO .1UF 50V 20% Z5U 061346 C100 CAP POLYPROP .047UF 10% 250VDC 064364 C102 CAP ELECT 10UF 50V 066445 C103 CAP MONO .1UF 50V 20% Z5U 061346 C104 CAP MONO .1UF 50V 20% Z5U 061346 C105 CAP MONO .1UF 50V 20% Z5U 061346 C106 CAP POLY .047UF 10% 1000VDC 064434 C115 CAP ELECT 47UF 35V 066446 C116 CAP ELECT 10UF 50V 066445 C118 CAP ELECT 10UF 50V 066445 C119 CAP ELECT 10UF 50V 066445 C121 CAP MONO .1UF 50V 20% Z5U 061346 C122 CAP MONO .1UF 50V 20% Z5U 061346
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PARTS LIST con’t
MAIN PCB 050329 (cont’d) Ref No. Description Part No.
C123 CAP ELECT 10UF 50V 066445 C125 CAP MONO .1UF 50V 20% Z5U 061346 C126 CAP MONO .1UF 50V 20% Z5U 061346 C127 CAP ELECT 10UF 50V 066445 C128 CAP ELECT 10UF 50V 066445 C129 CAP ELECT 47UF 35V 066446 C130 CAP ELECT 10UF 50V 066445 C132 CAP ELECT 10UF 50V 066445 C133 CAP ELECT 10UF 50V 066445 C134 CAP MONO .1UF 50V 20% Z5U 061346 C135 CAP MONO .1UF 50V 20% Z5U 061346 C136 CAP ELECT 10UF 50V 066445 C145 CAP ELECT 10UF 50V 066445 C146 CAP ELECT 10UF 50V 066445 C147 CAP ELECT 47UF 35V 066446 C148 CAP ELECT 47UF 35V 066446 C149 CAP MONO 220PF 200V 10% NPO 061342 C150 CAP MONO .1UF 50V 20% Z5U 061346 C152 CAP MONO .1UF 50V 20% Z5U 061346 C155 CAP MONO .1UF 50V 20% Z5U 061346 C151 CAP ELECT 10UF 50V 066445 C153 CAP ELECT 10UF 50V 066445 C154 CAP ELECT 10UF 50V 066445 C156 CAP ELECT 10UF 50V 066445 D1 DIODE SIL 400 PIV @ 1.5A 070031 D2 DIODE SIL 400 PIV @ 1.5A 070031 D3 DIODE SIL 400 PIV @ 1.5A 070031 D4 DIODE SILICON 070174 D5 DIODE SIL 400 PIV @ 1.5A 070031 D6 DIODE SIL 400 PIV @ 1.5A 070031 D7 DIODE SIL 400 PIV @ 1.5A 070031 D8 DIODE SIL 400 PIV @ 1.5A 070031 D9 DIODE SIL 400 PIV @ 1.5A 070031 D10 DIODE SILICON 070174 D11 DIODE SIL 400 PIV @ 1.5A 070031 D12 DIODE SIL 400 PIV @ 1.5A 070031 D13 DIODE SIL 400 PIV @ 1.5A 070031 D15 DIODE SIL 400 PIV @ 1.5A 070031 D14 DIODE SILICON 070174 D16 DIODE SILICON 070174 DS1 LED GREEN 3MM HI INTENSITY 058172 DS2 LED GREEN 3MM HI INTENSITY 058172 DS3 LED GREEN 3MM HI INTENSITY 058172 DS4 LED GREEN 3MM HI INTENSITY 058172 F2 FUSE 2A 250V SLO-BLO 5X20 IEC 089088 (F2) HOLDER FUSE 5X20MM PCB MOUNT 178159 F4 FUSE 1/8A SLO-BLO 5X20 IEC 089094 (F4) HOLDER FUSE 5X20MM PCB MOUNT 178159 F5 FUSE 0.5A SLO-BLO 5X20 IEC 089092 (F5) HOLDER FUSE 5X20MM PCB MOUNT 178159 GP1 BRACKET PCB CARD MOUNTING 003611 GP2 BRACKET PCB CARD MOUNTING 003611 J1 CONN FFC 18PIN 117765 J2 JACK PHONO 6P GOLD PLATED 117449
Ref No. Description Part No.
J3 JACK PHONO 8P GOLD PLATED 117455 J4 CONN FFC 18PIN 117765 J5 CONN FFC 18PIN 117765 J6 JACK PHONO 8P GOLD PLATED 117455 J7 CONN 12 PIN FFC 117720 J8 CONN FFC 18PIN 117765 J9 HEADER 9 CIRCUIT POST NATURAL 117724 J10 BLADE FASTON W/FEET 117708 J11 BLADE FASTON W/FEET 117708 J12 CONN PCB MOUNT POWER RED 117719 J13 CONN PCB MOUNT POWER RED 117719 J14 CONN PCB MOUNT POWER RED 117719 J15 CONN PCB MOUNT POWER RED 117719 J16 JACK PHONO GOLD PJ261G 117436 J41 CONN FFC 18PIN 117765 K1 RELAY REED SPST-NO 5V 1.2A 087078 K2 RELAY REED SPST-NO 5V 1.2A 087078 K3 RELAY REED SPST-NO 5V 1.2A 087078 K4 RELAY REED SPST-NO 5V 1.2A 087078 K5 RELAY REED SPST-NO 5V 1.2A 087078 K6 RELAY REED SPST-NO 5V 1.2A 087078 K7 RELAY REED SPST-NO 5V 1.2A 087078 K8 RELAY REED SPST-NO 5V 1.2A 087078 K9 RELAY REED SPST-NO 5V 1.2A 087078 K10 RELAY REED SPST-NO 5V 1.2A 087078 K11 RELAY REED SPST-NO 5V 1.2A 087078 K12 RELAY REED SPST-NO 5V 1.2A 087078 K13 RELAY REED SPST-NO 5V 1.2A 087078 K14 RELAY REED SPST-NO 5V 1.2A 087078 K15 RELAY REED SPST-NO 5V 1.2A 087078 K16 RELAY REED SPST-NO 5V 1.2A 087078 K17 RELAY REED FORM 1C 5V 125 OHM 087056 K18 RELAY REED FORM 1C 5V 125 OHM 087056 K20 RELAY 24VDC 5A 277VAC 087057 K21 RELAY REED SPST-NO 5V 1.2A 087078 K22 RELAY REED SPST-NO 5V 1.2A 087078 K23 RELAY REED SPST-NO 5V 1.2A 087078 K24 RELAY REED SPST-NO 5V 1.2A 087078 K25 RELAY REED SPST-NO 5V 1.2A 087078 K26 RELAY REED SPST-NO 5V 1.2A 087078 K27 RELAY REED SPST-NO 5V 1.2A 087078 Q1 TRANSISTOR N JFET 132318 Q2 TRANSISTOR N JFET 132318 Q3 TRANSISTOR N JFET 132318 Q4 TRANSISTOR N JFET 132318 Q5 TRANSISTOR PNP SILICON 132304 Q6 TRANSISTOR PNP SILICON 132304 Q7 TRANSISTOR PNP SILICON 132304 Q8 TRANSISTOR PNP SILICON 132304 Q9 TRANSISTOR PNP SILICON 132304 Q10 TRANSISTOR PNP SILICON 132304 Q11 TRANSISTOR PNP SILICON 132304 Q12 TRANSISTOR PNP SILICON 132304 Q13 TRANSISTOR N JFET 132318
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PARTS LIST con’t
MAIN PCB 050329 (cont’d) Ref No. Description Part No.
Q14 TRANSISTOR N JFET 132318 Q15 TRANSISTOR N JFET 132318 Q16 TRANSISTOR N JFET 132318 Q17 TRANSISTOR NPN POWER 132295 (Q17) HEATSINK TO-220 080017 Q19 TRANSISTOR PNP SILICON 132304 Q29 TRANSISTOR PNP SILICON 132304 Q21 TRANSISTOR NPN POWER 132295 Q22 TRANSISTOR NPN 2A 50V 132302 Q23 TRANSISTOR NPN 2A 50V 132302 Q18 TRANSISTOR NPN SILICON 132317 Q24 TRANSISTOR PNP 132326 Q25 TRANSISTOR PNP 132326 Q26 TRANSISTOR NPN SILICON 132317 Q27 TRANSISTOR PNP 132326 Q28 TRANSISTOR N JFET 132318 Q30 TRANSISTOR N JFET 132318 Q31 TRANSISTOR PNP 132326 Q32 TRANSISTOR NPN SILICON 132317 Q20 TRANSISTOR NPN 132325 R1 RES MF 20K 1% 1/4W 144524 R2 RES MF 150K 1% 1/4W 144627 R3 RES MF 221K 1% 1/4W 144629 R4 RES MF 200K 1% 1/4W 144531 R5 RES MF 2.74K 1% 1/4W 144587 R6 RES MF 2.21M 1% 1/4W 144576 R7 RES MF 47.5K 1% 1/4W 144526 R8 RES MF 33.2K 1% 1/4W 144694 R9 RES MF 24.9K 1% 1/4W 144439 R10 RES 16.5K 1% 1/4W 144103 R11 RES MF 100K 1% 1/4W 144528 R12 RES MF 1M 1% 1/4W 144577 R13 RES MF 10M 1% 1/4W 144575 R14 RES MF 10M 1% 1/4W 144575 R15 RES MF 10M 1% 1/4W 144575 R16 RES MF 10M 1% 1/4W 144575 R17 RES MF 1.5K 1% 1/4W 144539 R18 RES MF 3.32K 1% 1/4W 144518 R19 RES MF 10K 1% 1/4W 144504 R20 RES MF 267K 1% 1/4W 144532 R21 RES MF 22.1K 1% 1/4W 144564 R22 RES MF 12.1K 1% 1/4W 144550 R23 RES MF 15K 1% 1/4W 144623 R24 RES MF 267K 1% 1/4W 144532 R25 RES MF 1M 1% 1/4W 144577 R26 RES MF 267K 1% 1/4W 144532 R27 RES MF 1M 1% 1/4W 144577 R28 RES MF 267K 1% 1/4W 144532 R29 RES MF 1M 1% 1/4W 144577 R30 RES MF 267K 1% 1/4W R31 RES MF 1M 1% 1/4W 144577 R32 RES MF 267K 1% 1/4W 144532 R33 RES MO 100K 5% 2W 144698 R34 RES MF 10K 1% 1/4W 144504
144532
MCD201
C220
Ref No. Description Part No.
R35 RES MF 1.5K 1% 1/4W 144539 R36 RES MF 267K 1% 1/4W 144532 R37 RES MF 12.1K 1% 1/4W 144550 R38 RES MF 267K 1% 1/4W 144532 R39 RES MF 267K 1% 1/4W 144532 R40 RES MF 267K 1% 1/4W 144532 R41 RES MF 267K 1% 1/4W 144532 R42 RES MF 1K 1% 1/4W 144513 R43 RES MF 1K 1% 1/4W 144513 R44 RES MF 1K 1% 1/4W 144513 R45 RES MF 1M 1% 1/4W 144577 R46 RES MF 1M 1% 1/4W 144577 R47 RES MF 221K 1% 1/4W 144629 R48 RES MF 200K 1% 1/4W 144531 R49 RES MF 1M 1% 1/4W 144577 R50 RES MF 1M 1% 1/4W 144577 R51 RES MF 3.32K 1% 1/4W 144518 R52 RES MF 2.74K 1% 1/4W 144587 R53 RES MF 20K 1% 1/4W 144524 R54 RES MF 1K 1% 1/4W 144513 R55 RES MF 150K 1% 1/4W 144627 R56 RES MF 1M 1% 1/4W 144577 R57 RES MF 1.5K 1% 1/4W 144539 R58 RES MF 3.32K 1% 1/4W 144518 R59 RES MF 47.5K 1% 1/4W 144526 R60 RES MF 33.2K 1% 1/4W 144694 R61 RES MF 2.21M 1% 1/4W 144576 R62 RES MF 24.9K 1% 1/4W 144439 R63 RES 16.5K 1% 1/4W 144103 R64 RES MF 22.1K 1% 1/4W 144564 R65 RES MF 10M 1% 1/4W 144575 R66 RES MF 10M 1% 1/4W 144575 R67 RES MF 10M 1% 1/4W 144575 R68 RES MF 10M 1% 1/4W 144575 R69 RES MF 15K 1% 1/4W 144623 R70 RES MF 221K 1% 1/4W 144629 R71 RES MF 200K 1% 1/4W 144531 R72 RES MF 1K 1% 1/4W 144513 R73 RES MF 1K 1% 1/4W 144513 R74 RES MF 1K 1% 1/4W 144513 R75 RES NETWORK 2 X 220K ISO 144678 R76 RES MF 1M 1% 1/4W 144577 R77 RES MF 47.5K 1% 1/4W 144526 R78 RES MF 1.5K 1% 1/4W 144539 R79 RES MF 953 OHM 1% 1/4W 144473 R80 RES MF 22.1K 1% 1/4W 144564 R81 RES MF 221K 1% 1/4W 144629 R82 RES MF 1.82K 1% 1/4W 144582 R83 RES MF 75K 1% 1/4W 144156 R84 RES MF 1M 1% 1/4W 144577 R85 RES NETWORK 2 X 220K ISO 144678 R86 RES MF 221K 1% 1/4W 144629 R87 RES MF 200K 1% 1/4W 144531 R88 RES MF 1K 1% 1/4W 144513
39
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PARTS LIST con’t
MAIN PCB 050329 (cont’d) Ref No. Description Part No.
R89 RES NETWORK 2 X 220K ISO 144678 R90 RES MF 1M 1% 1/4W 144577 R91 RES MF 47.5K 1% 1/4W 144526 R92 RES MF 1.5K 1% 1/4W 144539 R93 RES MF 953 OHM 1% 1/4W 144473 R94 RES MF 22.1K 1% 1/4W 144564 R95 RES MF 221K 1% 1/4W 144629 R96 RES MF 1.82K 1% 1/4W 144582 R97 RES MF 75K 1% 1/4W 144156 R98 RES MF 1M 1% 1/4W 144577 R99 RES MF 1K 1% 1/4W 144513 R100 RES NETWORK 2 X 220K ISO 144678 R101 RES MF 40.2K 1% 1/4W 144525 R102 RES MF 221 OHM 1% 1/4W 144559 R103 RES NETWORK 2 X 220K ISO 144678 R104 RES MF 40.2K 1% 1/4W 144525 R105 RES MF 20K 1% 1/4W 144524 R106 RES MF 20K 1% 1/4W 144524 R107 RES NETWORK 2 X 220K ISO 144678 R108 RES MF 1K 1% 1/4W 144513 R109 RES MF 40.2K 1% 1/4W 144525 R110 RES MF 221 OHM 1% 1/4W 144559 R111 RES MF 40.2K 1% 1/4W 144525 R112 RES NETWORK 2 X 220K ISO 144678 R113 RES MF 20K 1% 1/4W 144524 R114 RES MF 20K 1% 1/4W 144524 R115 RES NETWORK 2 X 220K ISO 144678 R116 RES MF 10K 1% 1/4W 144504 R117 RES MF 10 OHM 1% 1/4W 144553 R118 RES MF 10K 1% 1/4W 144504 R119 RES MF 365 OHM 1% 1/4W 144505 R120 RES MF 3.32K 1% 1/4W 144518 R121 RES MF 22.1 OHM 1% 1/4W 144554 R122 RES MF 200K 1% 1/4W 144531 R123 RES MF 3.32K 1% 1/4W 144518 R124 RES MF 332 OHM 1% 1/4W 144646 R125 RES MF 8.25K 1% 1/4W 144549 R126 RES MF 100K 1% 1/4W 144528 R127 RES MF 221 OHM 1% 1/4W 144559 R128 RES MF 1M 1% 1/4W 144577 R129 RES MF 200K 1% 1/4W 144531 R130 RES MF 100K 1% 1/4W 144528 R131 RES MF 475 OHM 1% 1/4W 144509 R132 RES MF 1K 1% 1/4W 144513 R133 RES MF 1K 1% 1/4W 144513 R134 RES MF 100K 1% 1/4W 144528 R135 RES MF 267K 1% 1/4W 144532 R136 RES MF 3.32K 1% 1/4W 144518 R137 RES MF 1K 1% 1/4W 144513 R138 RES MF 10K 1% 1/4W 144504 R139 RES MF 10K 1% 1/4W 144504 R140 RES MF 33.2K 1% 1/4W 144694 R141 RES MF 200K 1% 1/4W 144531 R142 RES MF 221 OHM 1% 1/4W 144559
Ref No. Description Part No.
R143 RES MF 100K 1% 1/4W 144528 R144 RES MF 33.2K 1% 1/4W 144694 R145 RES MF 221 OHM 1% 1/4W 144559 R146 RES MF 100K 1% 1/4W 144528 R147 RES MF 1M 1% 1/4W 144577 R148 RES MF 221 OHM 1% 1/4W 144559 R149 RES MF 20K 1% 1/4W 144524 R150 RES MF 100K 1% 1/4W 144528 R151 RES MF 22.1K 1% 1/4W 144564 R152 RES MF 1K 1% 1/4W 144513 R153 RES MF 221 OHM 1% 1/4W 144559 R154 RES MF 100K 1% 1/4W 144528 R155 RES MF 10K 1% 1/4W 144504 R156 RES MF 221 OHM 1% 1/4W 144559 R157 RES MF 10K 1% 1/4W 144504 R158 RES MF 22.1K 1% 1/4W 144564 R159 RES MF 100K 1% 1/4W R160 RES MF 33.2K 1% 1/4W 144694 R161 RES MF 22.1K 1% 1/4W 144564 R162 RES MF 221 OHM 1% 1/4W 144559 R163 RES MF 100K 1% 1/4W 144528 R164 RES MF 100 OHM 1% 1/4W 144568 R165 RES MF 100K 1% 1/4W 144528 R166 RES MF 100 OHM 1% 1/4W 144568 R167 RES MF 100K 1% 1/4W 144528 R168 RES MF 22.1K 1% 1/4W 144564 R169 RES MF 1K 1% 1/4W 144513 R170 RES MF 10K 1% 1/4W 144504 R171 RES MF 1K 1% 1/4W 144513 R172 RES MF 1K 1% 1/4W 144513 R173 RES MF 1K 1% 1/4W 144513 R174 RES MF 10M 1% 1/4W 144575 R175 RES MF 10M 1% 1/4W 144575 R176 RES MF 332 OHM 1% 1/4W 144646 R177 RES MF 1.82K 1% 1/4W 144582 R178 RES MF 1.82K 1% 1/4W 144582 R179 RES MF 1.82K 1% 1/4W 144582 R180 RES MF 1.82K 1% 1/4W 144582 R181 RES MF 3.32K 1% 1/4W 144518 R182 RES MF 3.32K 1% 1/4W 144518 R183 RES MF 365 OHM 1% 1/4W 144505 R188 RES MF 221K 1% 1/4W 144629 R189 RES MF 221K 1% 1/4W 144629 R192 RES MF 33.2K 1% 1/4W 144694 R193 RES MF 33.2K 1% 1/4W 144694 R196 RES MF 100K 1% 1/4W 144528 R197 RES MF 100K 1% 1/4W 144528 R200 RES MF 267K 1% 1/4W 144532 R201 RES MF 365 OHM 1% 1/4W 144505 R220 RES MF 47.5K 1% 1/4W 144526 T1 TRANSFORMER R-CORE POWER U1 IC REGULATOR 5V 133250 U2 IC -5V REGULATOR 133253 U3 IC DUAL OPERATIONAL AMPLIFIER 133260
144528
159348
40
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PARTS LIST con’t
MAIN PCB 050329 (cont’d) Ref No. Description Part No.
U4 IC SHFT REG SER-PAR 133186 U5 IC STEREO DGTL VOLUME CONTROL 133331 U6 IC SHFT REG SER-PAR 133186 U7 IC OCTAL DARLNGTON TRANS ARRAY 133258 U8 IC SHFT REG SER-PAR 133186 U9 IC OCTAL DARLNGTON TRANS ARRAY 133258 U10 IC DUAL OPERATIONAL AMPLIFIER 133260 U11 IC VOLTAGE REGLTR VARIABLE NEG 133334 (U11) HEATSINK TO-220 080017 U12 IC VOLTAGE REGLTR VARIABLE POS 133333 (U12) HEATSINK TO-220 080017 U13 IC SHFT REG SER-PAR 133186 U14 IC VOLTAGE REGLTR VARIABLE NEG 133334 (U14) HEATSINK TO-220 080017 U15 IC VOLTAGE REGLTR VARIABLE POS 133333 (U15) HEATSINK TO-220 080017 U16 IC REGULATOR +5V 133108 (U16) HEATSINK TO-220 080017 U17 IC 2 INPUT X 4 133167 U18 IC DUAL OPERATIONAL AMPLIFIER 133260 U19 IC DUAL OPERATIONAL AMPLIFIER 133260 U21 IC DUAL OPERATIONAL AMPLIFIER 133260 V1 SOCKET 9 PIN TUBE CERAMIC 178170 V3 SOCKET 9 PIN TUBE CERAMIC 178170 V5 SOCKET 9 PIN TUBE CERAMIC 178170 V7 SOCKET 9 PIN TUBE CERAMIC 178170 18574 ASSEMBLY INSERTION PCB MAIN 700138
ASSY INSERTION PCB MAIN 701138
3
DISPLAY PCB 050330
C1 CAP ELECT 10UF 50V 066445 C2 CAP MONO .1UF 50V 20% Z5U 061346 C3 CAP ELECT 47UF 35V 066446 C4 CAP MONO .1UF 50V 20% Z5U 061346 C5 CAP ELECT 10UF 50V 066445 C6 CAP ELECT 47UF 16V 066380 C7 CAP MONO .1UF 50V 20% Z5U 061346 C8 CAP MONO .1UF 50V 20% Z5U 061346 C9 CAP ELECT 10UF 50V 066445 C10 CAP MONO 220PF 200V 10% NPO 061342 C11 CAP MONO .1UF 50V 20% Z5U 061346 C12 CAP MONO 220PF 200V 10% NPO 061342 C13 CAP MONO 220PF 200V 10% NPO 061342 C14 CAP MPF 0.033UF 5% 63VDC 064318 C15 CAP MPF 0.033UF 5% 63VDC 064318 C16 CAP MPF 0.033UF 5% 63VDC 064318 C17 CAP MONO .1UF 50V 20% Z5U 061346 C18 CAP MPF 0.033UF 5% 63VDC 064318 C19 CAP ELECT 22UF 100V 066574 C20 CAP MONO .1UF 50V 20% Z5U 061346 C21 CAP ELECT 22UF 100V 066574 D1 DIODE SILICON 070174 D2 DIODE ZENER 6.2V 5% 500MW 070085 D3 DIODE SILICON 070174 D4 DIODE SILICON 070174
C220
Ref No. Description Part No.
D5 DIODE SILICON 070174 DS1 LED GRN 5MM HI-INTENSITY 058165 (DS1) SPACER LED 112108 DS2 LED GRN 5MM HI-INTENSITY 058165 (DS2) SPACER LED 112108 DS3 LED GRN 5MM HI-INTENSITY 058165 (DS3) SPACER LED 112108 DS4 LED GRN 5MM HI-INTENSITY 058165 (DS4) SPACER LED 112108 DS5 LED GRN 5MM HI-INTENSITY 058165 (DS5) SPACER LED 112108 DS6 LED GRN 5MM HI-INTENSITY 058165 (DS6) SPACER LED 112108 DS7 DISPLAY 12 CHARACTER 058150 DS8 LED GRN 5MM HI-INTENSITY 058165 (DS8) SPACER LED 112108 J1 CONN FFC 18PIN 117765 J2 CONN FFC 18PIN 117765 J5 CONN FFC 18PIN 117765 K1 RELAY REED SPST-NO 5V 1.2A 087078 K2 RELAY REED SPST-NO 5V 1.2A 087078 K3 RELAY REED SPST-NO 5V 1.2A 087078 K4 RELAY REED SPST-NO 5V 1.2A 087078 MTGPA1 DBL COATED MTG-TAPE 1/16 THK 094409 MTGPA2 DBL COATED MTG-TAPE 1/16 THK 094409 MTGPA3 DBL COATED MTG-TAPE 1/16 THK 094409 MT1 SENSOR IR 38KHZ 121046 Q1 TRANSISTOR PNP 132304 Q3 TRANSISTOR NPN 2K/REEL 132317 R1 RES MF 475K 1% 1/4W 144604 R2 RES MF 10K 1% 1/4W 144504 R3 RES MF 100 OHM 1% 1/4W 144568 R4 RES MF 475 OHM 1% 1/4W 144509 R5 RES MF 10 OHM 1% 1/4W 144553 R6 RES MF 47.5K 1% 1/4W 144526 R7 RES MF 475 OHM 1% 1/4W 144509 R8 RES NET 10K X8 RES BUSSED 144253 R9 RES NETWORK 9X-1-223 144238 R10 RES MF 324 OHM 1% 1/4W 144597 R12 RES MF 100 OHM 1% 1/4W 144568 R13 RES MF 47.5K 1% 1/4W 144526 R14 RES NETWORK 9X-1-223 144238 R15 RES MF 1K 1% 1/4W 144513 R16 RES MF 324 OHM 1% 1/4W 144597 R17 RES MF 324 OHM 1% 1/4W 144597 R18 RES MF 324 OHM 1% 1/4W 144597 R19 RES MF 324 OHM 1% 1/4W 144597 R20 RES MF 324 OHM 1% 1/4W 144597 R22 RES MF 324 OHM 1% 1/4W 144597 R21 RES MF 100K 1% 1/4W 144528 R23 RES MF 100 OHM 1% 1/4W 144568 R24 RES MF 100 OHM 1% 1/4W 144568 R25 RES MF 100 OHM 1% 1/4W 144568 R26 RES MF 221 OHM 1% 1/4W 144559 R27 RES MF 100 OHM 1% 1/4W 144568
41
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PARTS LIST con’t
DISPLAY PCB 050330 (cont’d) Ref No. Description Part No.
R28 RES MF 2.21K 1% 1/4W 144584 R29 RES MF 1K 1% 1/4W 144513 R30 RES MF 1K 1% 1/4W 144513 R32 RES NETWORK 9X-1-223 144238 R33 RES MF 100 OHM 1% 1/4W 144568 R34 RES MF 100 OHM 1% 1/4W 144568 R35 PC BD TONE 129629 (R35) POT EQUAL 134509 (R35A) CONN 4 PIN RIGHT ANGLE 117927 (R35B) CONN 4 PIN RIGHT ANGLE 117927 (R35C) CONN 4 PIN RIGHT ANGLE 117927 (R35D) CONN 4 PIN RIGHT ANGLE 117927 R39 RES MF 1M 1% 1/4W 144577 R43 RES MF 100K 1% 1/4W 144528 R44 RES MF 681 OHM 1% 1/4W 144567 R46 RES MF 681 OHM 1% 1/4W 144567 R45 RES MF 100K 1% 1/4W 144528 R47 RES MF 475 OHM 1% 1/4W 144509 R48 RES MF 475 OHM 1% 1/4W 144509 R40 RES MF 1M 1% 1/4W 144577 R41 RES MF 1M 1% 1/4W 144577 R42 RES MF 1M 1% 1/4W 144577 S1 ENCODER OPTICAL ROTARY 146246 S2 SWITCH ROT PULSE 146258 S2 PC BD SWITCH 129294 (S2) CONN 3-PIN RIGHT ANGLE 117670 U1 IC NOR 2 INPUT X 4 133176 U2 IC MICRO RESET POS 133241 U3 IC CMOS EPROM 133249 U4 IC PROGRAMMED V1.00 C220 133584 U3 SOCKET IC 8-POS 178096 U4 SOCKET IC 40-PIN 178133 U6 IC SHFT REG SER-PAR 133186 U8 IC DUAL OPERATIONAL AMPLIFIER 133260 Y1 CERAMIC RESONATOR 12MHZ 180059 Y2 RES MF 8.25K 1% 1/4W 144549 Y2 RESONATOR CERAMIC 2.00MHZ 180064
ASSEMBLY INSERTION PCB DISPLAY 700139 ASSY INSERTION PCB DISPLAY 701139 ASSY DISPLAY PCB SM PART 750360
4
BALANCED/DATA PCB 050331
C1 CAP ELECT 10UF 50V 066445 C2 CAP ELECT 10UF 50V 066445 C3 CAP ELECT 10UF 50V 066445 C4 CAP ELECT 10UF 50V 066445 C5 CAP ELECT 10UF 50V 066445 C6 CAP ELECT 10UF 50V 066445 C7 CAP ELECT 10UF 50V 066445 C8 CAP ELECT 10UF 50V 066445 C9 CAP ELECT 10UF 50V 066445 C10 CAP ELECT 10UF 50V 066445 C11 CAP ELECT 10UF 50V 066445 C12 CAP ELECT 10UF 50V 066445
Ref No. Description Part No.
C13 CAP ELECT 10UF 50V 066445 C14 CAP ELECT 10UF 50V 066445 C15 CAP ELECT 10UF 50V 066445 C16 CAP ELECT 10UF 50V 066445 C17 CAP MONO .1UF 50V 20% Z5U 061346 C18 CAP MONO .1UF 50V 20% Z5U 061346 C19 CAP MONO 1000PF 50V 10% NPO 061344 C20 CAP MONO .1UF 50V 20% Z5U 061346 D1 DIODE SILICON 070174 D2 DIODE SILICON 070174 D3 DIODE SILICON 070174 J1 CONN XLR FEM HORIZ PCB LATCH 117814 J2 CONN XLR FEM HORIZ PCB LATCH 117814 J3 CONN XLR FEM HORIZ PCB LATCH 117814 J4 CONN XLR FEM HORIZ PCB LATCH 117814 J5 RECEPTACLE XLR MALE 117686 J6 RECEPTACLE XLR MALE 117686 J7 CONN FFC 18PIN 117765 J8 CONN FFC 18PIN 117765 J9 JACK HEADPHONE DUAL BLACK 1/8 117825 J10 JACK HEADPHONE DUAL BLACK 1/8 117825 J11 CONN GOLD F RIGHT ANGLE 117661 J12 JACK HEADPHONE DUAL BLACK 1/8 117825 J13 JACK HEADPHONE DUAL BLACK 1/8 117825 J14 JACK HEADPHONE DUAL BLACK 1/8 117825 J15 JACK HEADPHONE DUAL BLACK 1/8 117825 J16 CONN FFC 18PIN 117765 K1 RELAY REED SPST-NO 5V 1.2A 087078 K2 RELAY REED SPST-NO 5V 1.2A 087078 K3 RELAY REED SPST-NO 5V 1.2A 087078 K4 RELAY REED SPST-NO 5V 1.2A 087078 K5 RELAY REED SPST-NO 5V 1.2A 087078 K6 RELAY REED SPST-NO 5V 1.2A 087078 K7 RELAY REED SPST-NO 5V 1.2A 087078 K8 RELAY REED SPST-NO 5V 1.2A 087078 K9 RELAY REED SPST-NO 5V 1.2A 087078 K10 RELAY REED SPST-NO 5V 1.2A 087078 PCB1 PC BD BAL/DATA 129628 R1 RES MF 221 OHM 1% 1/4W 144559 R2 RES MF 221 OHM 1% 1/4W 144559 R3 RES MF 221 OHM 1% 1/4W 144559 R4 RES MF 221 OHM 1% 1/4W 144559 R5 RES MF 100K 1% 1/4W 144528 R6 RES MF 100K 1% 1/4W 144528 R7 RES MF 267K 1% 1/4W 144532 R8 RES MF 267K 1% 1/4W 144532 R9 RES MF 267K 1% 1/4W 144532 R10 RES MF 267K 1% 1/4W 144532 R11 RES MF 267K 1% 1/4W 144532 R12 RES MF 267K 1% 1/4W 144532 R13 RES MF 267K 1% 1/4W 144532 R14 RES MF 267K 1% 1/4W 144532 R15 RES MF 267K 1% 1/4W 144532 R16 RES MF 267K 1% 1/4W 144532 R17 RES MF 267K 1% 1/4W 144532
42
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PARTS LIST con’t
BALANCED/DATA PCB 050331 (cont’d) Ref No. Description Part No.
R18 RES MF 267K 1% 1/4W 144532 R19 RES MF 10 OHM 1% 1/4W 144553 R20 RES MF 182 OHM 1% 1/4W 144579 R21 RES MF 182 OHM 1% 1/4W 144579 R22 RES MF 182 OHM 1% 1/4W 144579 R23 RES MF 182 OHM 1% 1/4W 144579 R24 RES MF 182 OHM 1% 1/4W 144579 R25 RES MF 182 OHM 1% 1/4W 144579 R26 RES MF 182 OHM 1% 1/4W 144579 R27 RES MF 182 OHM 1% 1/4W 144579 R28 RES MF 10 OHM 1% 1/4W 144553 R29 RES MF 100 OHM 1% 1/4W 144568 R30 RES MF 100 OHM 1% 1/4W 144568 R31 RES MF 100 OHM 1% 1/4W 144568 R32 RES MF 100 OHM 1% 1/4W 144568 R33 RES MF 100 OHM 1% 1/4W 144568 R34 RES MF 100 OHM 1% 1/4W 144568 R35 RES MF 100 OHM 1% 1/4W 144568 R36 RES MF 100 OHM 1% 1/4W 144568 R37 RES MF 1K 1% 1/4W 144513 R38 RES MF 221 OHM 1% 1/4W 144559 R39 RES MF 1K 1% 1/4W 144513 R40 RES MF 1K 1% 1/4W 144513 R41 RES MF 1K 1% 1/4W 144513 R42 RES MF 40.2K 1% 1/4W 144525 R43 RES MF 22.1K 1% 1/4W 144564 U1 IC AND 2 INPUT X 4 133175 U2 IC AND 2 INPUT X 4 133175 U3 IC 8 LN DRIVER ARRAY 133180 U4 IC SHFT REG SER-PAR 133186 U5 IC OPERATIONAL AMPLIFIER 133189 18574 ASSY INSERTION PCB BAL/DATA 701140
C220
5
TONE PCB 129629 ????? Ref No. Description Part No.
1 PCB Part Number 129629 2 LOGO J1 CONN 4-PIN RIGHT ANGLE 117927 J2 CONN 4-PIN RIGHT ANGLE 117927 R1 Potentiometer 134457
7
PUSHBUTTON PCB 050333
1 Pushbutton PCB 129630 2 LOGO DS1 LED SQUARE RED 58109 DS2 LED SQUARE RED 58109 DS3 LED SQUARE RED 58109 DS4 LED SQUARE RED 58109 DS5 LED SQUARE RED 58109 DS6 LED SQUARE RED 58109 DS7 LED SQUARE RED 58109 J1 CONN FFC 18PIN 117765 S1 SWITCH PB TACT 150058 S2 SWITCH PB TACT 150058 S3 SWITCH PB TACT 150058 S4 SWITCH PB TACT 150058 S5 SWITCH PB TACT 150058 S6 SWITCH PB TACT 150058 S7 SWITCH PB TACT 150058 S8 SWITCH PB TACT 150058
?
HEADPHONE PCB 050332
1 PCB Part Number 129634 2 LOGO J1 HEADPHONE JACK 117881 J2 CONN 12 PIN FFC 117720
43
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NOTES
44
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REPACKING INSTRUCTIONS
C220
45
Page 30
C220
TUBE PREAMPLIFIER
SERIAL NO. WS1001 And Above
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.
McINTOSH LABORATORY, INC., 2 CHAMBERS STREET, BINGHAMTON, NEW YORK 13903 Printed in U.S.A. Part Number 040968
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