Service Manuals, User Guides, Schematic Diagrams or docs for : . Rare and Ancient Equipment Mc INTOSH Audio C220 hfe_mcintosh_c220_service_ws1001_on
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C220
C220
TUBE PREAMPLIFIER
SERIAL NO. WS1001 And Above
CONTENTS
Performance Specifications ........................................ 2 Display Schematic and PCB .............................. 19 - 24
Notes ......................................................................... 2 Balanced/Data Sch and PCB .............................. 25 - 30
Rear Panel .................................................................. 3 Pushbutton Sch and PCB .................................. 31 - 32
Section Location ........................................................ 3 Headphone Sch and PCB ................................. 33 - 34
Block Diagram ...................................................... 5 - 6 Parts List ............................................................ 37 - 43
Interconnection Diagram ...................................... 7 - 8 Repacking Instructions ............................................. 45
Main Schematic and PCB ................................... 9 - 18
SERVICE MANUAL
Serial Number W S1001 And Above
PERFORMANCE SPECIFICATIONS
Frequency Response Headphone Output Impedance
+0, -0.5dB from 20Hz to 20,000Hz 16 ohms to 250 ohms
Total Harmonic Distortion Tube Compliment
0.08% from 20Hz to 20,000Hz Phono Circuitry: 2 - 12AX7A
High Level Circuitry: 2 - 12AX7A
Main Output
2.5V for rated input Power Requirements
100 Volts, 50/60Hz at 75 watts
Maximum Voltage Output 110 Volts, 50/60Hz at 75 watts
8V RMS Unbalanced, 16V RMS Balanced 120 Volts, 50/60Hz at 75 watts
220 Volts, 50/60Hz at 75 watts
Sensitivity (for rated output) 230 Volts, 50/60Hz at 75 watts
High Level, 450mV unbalanced, 900mV balanced 240 Volts, 50/60Hz at 75 watts
Phono, 4.5mV
Note: Refer to the rear panel of the C220 for the
Signal To Noise Ratio (A-Weighted) correct voltage.
High Level, 90dB below rated output
Phono, 80dB below 10mV input Overall Dimensions
Width is 17-1/2 inches (44.45cm)
Input Impedance Height is 6 inches (15.24cm) including feet
High Level, 22K ohms Depth is 18 inches (45.72cm) including the Front Panel,
Phono, 47K ohms; 65pF Knobs and Cables
Maximum Input Signal Weight
High Level, 5V Unbalanced, 10V Balanced 21.1 pounds (9.59 kg) net, 37.5 pounds (17.05 kg) in
Phono, 50mV (@ 1,000Hz) shipping carton
Output Impedance Shipping Carton Dimensions
250 ohms Width is 26-1/2 inches (67.3cm)
Depth is 24-1/4 inches (62.2cm)
Voltage Gain Height is 11-3/4 inches (29.9cm)
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 4. On PC board drawings, Square pad indicates:
signal path. a. Polarized Capacitors - Positive
b. Diodes - Cathode
2. Unless otherwise noted, all voltages indicated on the c. Others - Pin 1
schematics are measured under the following conditions:
a. AC input at 120 volts, 50/60Hz. 5. WARNING
b. All voltages are +/-10% with respect to ground. A Parts marked with the symbol have critical
high impedance (10 megaohm) voltmeter must be used. characteristics. Use only replacement parts recom-
mended by the manufacturer.
3. Unless otherwise specified:
a. Resistor values are in ohms.
b. Capacitor values are microfarads (uF).
c. Inductor values are in microhenries (uH).
2
C220
REAR PANEL
SECTION LOCATIONS
TOP VIEW WITH COVER REMOVED
3
NOTES
4
C220
BLOCK DIAGRAM
5 6
INTERCONNECT
7 8
C220
2 MAIN 050329 SCH 1 OF 4
9 10
2 MAIN 050329 SCH 2 OF 4
11 12
C220
2 MAIN 050329 SCH 3 OF 4
13 14
2 MAIN 050329 SCH 4 OF 4
15 16
C220
2 MAIN 050329 PCB
17 18
3 DISPLAY 050330 SCH 1 of 3
19 20
C220
3 DISPLAY 050330 SCH 2 of 3
21 22
3 DISPLAY 050330 SCH 3 of 3 and PCB
23 24
C220
4 BALANCED / DATA 051331 SCH 1 of 2
25 26
4 BALANCED / DATA 050331 SCH 2 of 2
27 28
C220
4 BALANCED / DATA 050331 PCB
29 30
5 PUSHBUTTON 051332 SCH and PCB
31 32
C220
6 HEADPHONE 051333 SCH and PCB
33 34
NOTES
35 36
C220
PARTS LIST
2 MAIN PCB 050329
Ref No. Description Part No. Ref No. Description Part No.
C1 CAP ELECT 10UF 50V 066445 C57 CAP ELECT 10UF 16V 066580
C2 CAP MPF 0.1UF 630VDC 064431 C58 CAP MONO 47PF 200V 10% NPO 061340
C3 CAP MONO 47PF 200V 10% NPO 061340 C59 CAP POLYPROP 1UF 20% 250VDC 064433
C4 CAP MONO 47PF 200V 10% NPO 061340 C60 CAP ELECT 1UF 50V 066510
C5 CAP ELECT 22UF 100V 066574 C61 CAP ELECT 10UF 250V 066493
C6 CAP POLYPROP 1UF 20% 250VDC 064433 C62 CAP ELECT 100UF 25V 066573
C8 CAP ELECT 10UF 50V 066445 C63 CAP ELECT 10UF 16V 066580
C7 CAP ELECT 1UF 50V 066510 C64 CAP ELECT 100UF 25V 066573
C9 CAP ELECT 47UF 35V 066446 C65 CAP ELECT 10UF 16V 066580
C10 CAP MONO 47PF 200V 10% NPO 061340 C66 CAP PF 0.001UF 5% 63VDC 064453
C11 CAP MONO 47PF 200V 10% NPO 061340 C67 CAP MPF 0.0033UF 5% 63VDC 064306
C12 CAP MONO 1000PF 50V 10% NPO 061344 C68 CAP ELECT 10UF 16V 066580
C13 CAP MONO 1000PF 50V 10% NPO 061344 C69 CAP ELECT 10UF 16V 066580
C14 CAP MONO 1000PF 50V 10% NPO 061344 C70 CAP MONO 100PF 100V 10% NPO 061341
C15 CAP MONO 1000PF 50V 10% NPO 061344 C71 CAP ELECT 10UF 16V 066580
C16 CAP ELECT 10UF 50V 066445 C72 CAP MONO .1UF 50V 20% Z5U 061346
C17 CAP ELECT 47UF 35V 066446 C73 CAP MONO .1UF 50V 20% Z5U 061346
C18 CAP DISC MONO .47UF 50V 061320 C74 CAP MONO 100PF 100V 10% NPO 061341
C19 CAP MONO .1UF 50V 20% Z5U 061346 C75 CAP ELECT 10UF 16V 066580
C20 CAP MONO .1UF 50V 20% Z5U 061346 C76 CAP MONO 100PF 100V 10% NPO 061341
C21 CAP ELECT 47UF 450V 066497 C77 CAP ELECT 10UF 16V 066580
C22 CAP ELECT 47UF 35V 066446 C78 CAP ELECT 10UF 16V 066580
C23 CAP ELECT 47UF 450V 066497 C79 CAP ELECT 10UF 16V 066580
C24 CAP ELECT 1UF 50V 066510 C80 CAP MONO 100PF 100V 10% NPO 061341
C25 CAP MONO .1UF 50V 20% Z5U 061346 C81 CAP ELECT 10UF 16V 066580
C26 CAP ELECT 10UF 50V 066445 C82 CAP MONO 100PF 100V 10% NPO 061341
C28 CAP MONO .1UF 50V 20% Z5U 061346 C83 CAP ELECT 10UF 16V 066580
C29 CAP ELECT 10UF 250V 066493 C84 CAP MONO 100PF 100V 10% NPO 061341
C30 CAP ELECT 4700UF 066443 C85 CAP ELECT 10UF 16V 066580
C31 CAP MONO 220PF 200V 10% NPO 061342 C86 CAP ELECT 10UF 16V 066580
C32 CAP MONO 1000PF 50V 10% NPO 061344 C87 CAP MONO .1UF 50V 20% Z5U 061346
C33 CAP MONO 1000PF 50V 10% NPO 061344 C88 CAP ELECT 220UF 50V 20% 066254
C34 CAP MONO 1000PF 50V 10% NPO 061344 C89 CAP POLYPROP .047UF 10% 250VDC 064364
C35 CAP MONO 1000PF 50V 10% NPO 061344 C90 CAP ELECT 220UF 50V 20% 066254
C36 CAP MPF 0.1UF 630VDC 064431 C91 CAP MONO .1UF 50V 20% Z5U 061346
C37 CAP ELECT 10UF 50V 066445 C92 CAP ELECT 1UF 50V 066510
C39 CAP POLYPROP 1UF 20% 250VDC 064433 C93 CAP ELECT 2200UF 50V 20% 066440
C40 CAP ELECT 1UF 50V 066510 C94 CAP MONO .1UF 50V 20% Z5U 061346
C41 CAP ELECT 47UF 35V 066446 C95 CAP ELECT 10UF 50V 066445
C42 CAP MPF 0.1UF 630VDC 064431 C96 CAP ELECT 2200UF 50V 20% 066440
C43 CAP ELECT 10UF 16V 066580 C97 CAP ELECT 10UF 50V 066445
C44 CAP MONO 220PF 200V 10% NPO 061342 C98 CAP MONO .1UF 50V 20% Z5U 061346
C45 CAP MONO 47PF 200V 10% NPO 061340 C100 CAP POLYPROP .047UF 10% 250VDC 064364
C46 CAP POLYPROP 1UF 20% 250VDC 064433 C102 CAP ELECT 10UF 50V 066445
C47 CAP ELECT 1UF 50V 066510 C103 CAP MONO .1UF 50V 20% Z5U 061346
C48 CAP ELECT 100UF 25V 066573 C104 CAP MONO .1UF 50V 20% Z5U 061346
C49 CAP ELECT 10UF 16V 066580 C105 CAP MONO .1UF 50V 20% Z5U 061346
C50 CAP MONO .1UF 50V 20% Z5U 061346 C106 CAP POLY .047UF 10% 1000VDC 064434
C51 CAP ELECT 100UF 25V 066573 C115 CAP ELECT 47UF 35V 066446
C52 CAP ELECT 10UF 16V 066580 C116 CAP ELECT 10UF 50V 066445
C53 CAP PF 0.001UF 5% 63VDC 064453 C118 CAP ELECT 10UF 50V 066445
C54 CAP MPF 0.0033UF 5% 63VDC 064306 C119 CAP ELECT 10UF 50V 066445
C55 CAP ELECT 10UF 16V 066580 C121 CAP MONO .1UF 50V 20% Z5U 061346
C56 CAP MPF 0.1UF 630VDC 064431 C122 CAP MONO .1UF 50V 20% Z5U 061346
37
PARTS LIST con't
MAIN PCB 050329 (cont'd) Ref No. Description Part No.
Ref No. Description
C123 CAP ELECT 10UF 50V Part No.
066445 J3 JACK PHONO 8P GOLD PLATED 117455
C125 CAP MONO .1UF 50V 20% Z5U 061346 J4 CONN FFC 18PIN 117765
C126 CAP MONO .1UF 50V 20% Z5U 061346 J5 CONN FFC 18PIN 117765
C127 CAP ELECT 10UF 50V 066445 J6 JACK PHONO 8P GOLD PLATED 117455
C128 CAP ELECT 10UF 50V 066445 J7 CONN 12 PIN FFC 117720
C129 CAP ELECT 47UF 35V 066446 J8 CONN FFC 18PIN 117765
C130 CAP ELECT 10UF 50V 066445 J9 HEADER 9 CIRCUIT POST NATURAL 117724
C132 CAP ELECT 10UF 50V 066445 J10 BLADE FASTON W/FEET 117708
C133 CAP ELECT 10UF 50V 066445 J11 BLADE FASTON W/FEET 117708
C134 CAP MONO .1UF 50V 20% Z5U 061346 J12 CONN PCB MOUNT POWER RED 117719
C135 CAP MONO .1UF 50V 20% Z5U 061346 J13 CONN PCB MOUNT POWER RED 117719
C136 CAP ELECT 10UF 50V 066445 J14 CONN PCB MOUNT POWER RED 117719
C145 CAP ELECT 10UF 50V 066445 J15 CONN PCB MOUNT POWER RED 117719
C146 CAP ELECT 10UF 50V 066445 J16 JACK PHONO GOLD PJ261G 117436
C147 CAP ELECT 47UF 35V 066446 J41 CONN FFC 18PIN 117765
C148 CAP ELECT 47UF 35V 066446 K1 RELAY REED SPST-NO 5V 1.2A 087078
C149 CAP MONO 220PF 200V 10% NPO 061342 K2 RELAY REED SPST-NO 5V 1.2A 087078
C150 CAP MONO .1UF 50V 20% Z5U 061346 K3 RELAY REED SPST-NO 5V 1.2A 087078
C152 CAP MONO .1UF 50V 20% Z5U 061346 K4 RELAY REED SPST-NO 5V 1.2A 087078
C155 CAP MONO .1UF 50V 20% Z5U 061346 K5 RELAY REED SPST-NO 5V 1.2A 087078
C151 CAP ELECT 10UF 50V 066445 K6 RELAY REED SPST-NO 5V 1.2A 087078
C153 CAP ELECT 10UF 50V 066445 K7 RELAY REED SPST-NO 5V 1.2A 087078
C154 CAP ELECT 10UF 50V 066445 K8 RELAY REED SPST-NO 5V 1.2A 087078
C156 CAP ELECT 10UF 50V 066445 K9 RELAY REED SPST-NO 5V 1.2A 087078
D1 DIODE SIL 400 PIV @ 1.5A 070031 K10 RELAY REED SPST-NO 5V 1.2A 087078
D2 DIODE SIL 400 PIV @ 1.5A 070031 K11 RELAY REED SPST-NO 5V 1.2A 087078
D3 DIODE SIL 400 PIV @ 1.5A 070031 K12 RELAY REED SPST-NO 5V 1.2A 087078
D4 DIODE SILICON 070174 K13 RELAY REED SPST-NO 5V 1.2A 087078
D5 DIODE SIL 400 PIV @ 1.5A 070031 K14 RELAY REED SPST-NO 5V 1.2A 087078
D6 DIODE SIL 400 PIV @ 1.5A 070031 K15 RELAY REED SPST-NO 5V 1.2A 087078
D7 DIODE SIL 400 PIV @ 1.5A 070031 K16 RELAY REED SPST-NO 5V 1.2A 087078
D8 DIODE SIL 400 PIV @ 1.5A 070031 K17 RELAY REED FORM 1C 5V 125 OHM 087056
D9 DIODE SIL 400 PIV @ 1.5A 070031 K18 RELAY REED FORM 1C 5V 125 OHM 087056
D10 DIODE SILICON 070174 K20 RELAY 24VDC 5A 277VAC 087057
D11 DIODE SIL 400 PIV @ 1.5A 070031 K21 RELAY REED SPST-NO 5V 1.2A 087078
D12 DIODE SIL 400 PIV @ 1.5A 070031 K22 RELAY REED SPST-NO 5V 1.2A 087078
D13 DIODE SIL 400 PIV @ 1.5A 070031 K23 RELAY REED SPST-NO 5V 1.2A 087078
D15 DIODE SIL 400 PIV @ 1.5A 070031 K24 RELAY REED SPST-NO 5V 1.2A 087078
D14 DIODE SILICON 070174 K25 RELAY REED SPST-NO 5V 1.2A 087078
D16 DIODE SILICON 070174 K26 RELAY REED SPST-NO 5V 1.2A 087078
DS1 LED GREEN 3MM HI INTENSITY 058172 K27 RELAY REED SPST-NO 5V 1.2A 087078
DS2 LED GREEN 3MM HI INTENSITY 058172 Q1 TRANSISTOR N JFET 132318
DS3 LED GREEN 3MM HI INTENSITY 058172 Q2 TRANSISTOR N JFET 132318
DS4 LED GREEN 3MM HI INTENSITY 058172 Q3 TRANSISTOR N JFET 132318
F2 FUSE 2A 250V SLO-BLO 5X20 IEC 089088 Q4 TRANSISTOR N JFET 132318
(F2) HOLDER FUSE 5X20MM PCB MOUNT 178159 Q5 TRANSISTOR PNP SILICON 132304
F4 FUSE 1/8A SLO-BLO 5X20 IEC 089094 Q6 TRANSISTOR PNP SILICON 132304
(F4) HOLDER FUSE 5X20MM PCB MOUNT 178159 Q7 TRANSISTOR PNP SILICON 132304
F5 FUSE 0.5A SLO-BLO 5X20 IEC 089092 Q8 TRANSISTOR PNP SILICON 132304
(F5) HOLDER FUSE 5X20MM PCB MOUNT 178159 Q9 TRANSISTOR PNP SILICON 132304
GP1 BRACKET PCB CARD MOUNTING 003611 Q10 TRANSISTOR PNP SILICON 132304
GP2 BRACKET PCB CARD MOUNTING 003611 Q11 TRANSISTOR PNP SILICON 132304
J1 CONN FFC 18PIN 117765 Q12 TRANSISTOR PNP SILICON 132304
J2 JACK PHONO 6P GOLD PLATED 117449 Q13 TRANSISTOR N JFET 132318
38
MCD201
C220
PARTS LIST con't
MAIN PCB 050329 (cont'd)
Ref No. Description Part No. Ref No. Description Part No.
Q14 TRANSISTOR N JFET 132318 R35 RES MF 1.5K 1% 1/4W 144539
Q15 TRANSISTOR N JFET 132318 R36 RES MF 267K 1% 1/4W 144532
Q16 TRANSISTOR N JFET 132318 R37 RES MF 12.1K 1% 1/4W 144550
Q17 TRANSISTOR NPN POWER 132295 R38 RES MF 267K 1% 1/4W 144532
(Q17) HEATSINK TO-220 080017 R39 RES MF 267K 1% 1/4W 144532
Q19 TRANSISTOR PNP SILICON 132304 R40 RES MF 267K 1% 1/4W 144532
Q29 TRANSISTOR PNP SILICON 132304 R41 RES MF 267K 1% 1/4W 144532
Q21 TRANSISTOR NPN POWER 132295 R42 RES MF 1K 1% 1/4W 144513
Q22 TRANSISTOR NPN 2A 50V 132302 R43 RES MF 1K 1% 1/4W 144513
Q23 TRANSISTOR NPN 2A 50V 132302 R44 RES MF 1K 1% 1/4W 144513
Q18 TRANSISTOR NPN SILICON 132317 R45 RES MF 1M 1% 1/4W 144577
Q24 TRANSISTOR PNP 132326 R46 RES MF 1M 1% 1/4W 144577
Q25 TRANSISTOR PNP 132326 R47 RES MF 221K 1% 1/4W 144629
Q26 TRANSISTOR NPN SILICON 132317 R48 RES MF 200K 1% 1/4W 144531
Q27 TRANSISTOR PNP 132326 R49 RES MF 1M 1% 1/4W 144577
Q28 TRANSISTOR N JFET 132318 R50 RES MF 1M 1% 1/4W 144577
Q30 TRANSISTOR N JFET 132318 R51 RES MF 3.32K 1% 1/4W 144518
Q31 TRANSISTOR PNP 132326 R52 RES MF 2.74K 1% 1/4W 144587
Q32 TRANSISTOR NPN SILICON 132317 R53 RES MF 20K 1% 1/4W 144524
Q20 TRANSISTOR NPN 132325 R54 RES MF 1K 1% 1/4W 144513
R1 RES MF 20K 1% 1/4W 144524 R55 RES MF 150K 1% 1/4W 144627
R2 RES MF 150K 1% 1/4W 144627 R56 RES MF 1M 1% 1/4W 144577
R3 RES MF 221K 1% 1/4W 144629 R57 RES MF 1.5K 1% 1/4W 144539
R4 RES MF 200K 1% 1/4W 144531 R58 RES MF 3.32K 1% 1/4W 144518
R5 RES MF 2.74K 1% 1/4W 144587 R59 RES MF 47.5K 1% 1/4W 144526
R6 RES MF 2.21M 1% 1/4W 144576 R60 RES MF 33.2K 1% 1/4W 144694
R7 RES MF 47.5K 1% 1/4W 144526 R61 RES MF 2.21M 1% 1/4W 144576
R8 RES MF 33.2K 1% 1/4W 144694 R62 RES MF 24.9K 1% 1/4W 144439
R9 RES MF 24.9K 1% 1/4W 144439 R63 RES 16.5K 1% 1/4W 144103
R10 RES 16.5K 1% 1/4W 144103 R64 RES MF 22.1K 1% 1/4W 144564
R11 RES MF 100K 1% 1/4W 144528 R65 RES MF 10M 1% 1/4W 144575
R12 RES MF 1M 1% 1/4W 144577 R66 RES MF 10M 1% 1/4W 144575
R13 RES MF 10M 1% 1/4W 144575 R67 RES MF 10M 1% 1/4W 144575
R14 RES MF 10M 1% 1/4W 144575 R68 RES MF 10M 1% 1/4W 144575
R15 RES MF 10M 1% 1/4W 144575 R69 RES MF 15K 1% 1/4W 144623
R16 RES MF 10M 1% 1/4W 144575 R70 RES MF 221K 1% 1/4W 144629
R17 RES MF 1.5K 1% 1/4W 144539 R71 RES MF 200K 1% 1/4W 144531
R18 RES MF 3.32K 1% 1/4W 144518 R72 RES MF 1K 1% 1/4W 144513
R19 RES MF 10K 1% 1/4W 144504 R73 RES MF 1K 1% 1/4W 144513
R20 RES MF 267K 1% 1/4W 144532 R74 RES MF 1K 1% 1/4W 144513
R21 RES MF 22.1K 1% 1/4W 144564 R75 RES NETWORK 2 X 220K ISO 144678
R22 RES MF 12.1K 1% 1/4W 144550 R76 RES MF 1M 1% 1/4W 144577
R23 RES MF 15K 1% 1/4W 144623 R77 RES MF 47.5K 1% 1/4W 144526
R24 RES MF 267K 1% 1/4W 144532 R78 RES MF 1.5K 1% 1/4W 144539
R25 RES MF 1M 1% 1/4W 144577 R79 RES MF 953 OHM 1% 1/4W 144473
R26 RES MF 267K 1% 1/4W 144532 R80 RES MF 22.1K 1% 1/4W 144564
R27 RES MF 1M 1% 1/4W 144577 R81 RES MF 221K 1% 1/4W 144629
R28 RES MF 267K 1% 1/4W 144532 R82 RES MF 1.82K 1% 1/4W 144582
R29 RES MF 1M 1% 1/4W 144577 R83 RES MF 75K 1% 1/4W 144156
R30 RES MF 267K 1% 1/4W 144532 R84 RES MF 1M 1% 1/4W 144577
R31 RES MF 1M 1% 1/4W 144577 R85 RES NETWORK 2 X 220K ISO 144678
R32 RES MF 267K 1% 1/4W 144532 R86 RES MF 221K 1% 1/4W 144629
R33 RES MO 100K 5% 2W 144698 R87 RES MF 200K 1% 1/4W 144531
R34 RES MF 10K 1% 1/4W 144504 R88 RES MF 1K 1% 1/4W 144513
39
PARTS LIST con't
MAIN PCB 050329 (cont'd)
Ref No. Description Part No. Ref No. Description Part No.
R89 RES NETWORK 2 X 220K ISO 144678 R143 RES MF 100K 1% 1/4W 144528
R90 RES MF 1M 1% 1/4W 144577 R144 RES MF 33.2K 1% 1/4W 144694
R91 RES MF 47.5K 1% 1/4W 144526 R145 RES MF 221 OHM 1% 1/4W 144559
R92 RES MF 1.5K 1% 1/4W 144539 R146 RES MF 100K 1% 1/4W 144528
R93 RES MF 953 OHM 1% 1/4W 144473 R147 RES MF 1M 1% 1/4W 144577
R94 RES MF 22.1K 1% 1/4W 144564 R148 RES MF 221 OHM 1% 1/4W 144559
R95 RES MF 221K 1% 1/4W 144629 R149 RES MF 20K 1% 1/4W 144524
R96 RES MF 1.82K 1% 1/4W 144582 R150 RES MF 100K 1% 1/4W 144528
R97 RES MF 75K 1% 1/4W 144156 R151 RES MF 22.1K 1% 1/4W 144564
R98 RES MF 1M 1% 1/4W 144577 R152 RES MF 1K 1% 1/4W 144513
R99 RES MF 1K 1% 1/4W 144513 R153 RES MF 221 OHM 1% 1/4W 144559
R100 RES NETWORK 2 X 220K ISO 144678 R154 RES MF 100K 1% 1/4W 144528
R101 RES MF 40.2K 1% 1/4W 144525 R155 RES MF 10K 1% 1/4W 144504
R102 RES MF 221 OHM 1% 1/4W 144559 R156 RES MF 221 OHM 1% 1/4W 144559
R103 RES NETWORK 2 X 220K ISO 144678 R157 RES MF 10K 1% 1/4W 144504
R104 RES MF 40.2K 1% 1/4W 144525 R158 RES MF 22.1K 1% 1/4W 144564
R105 RES MF 20K 1% 1/4W 144524 R159 RES MF 100K 1% 1/4W 144528
R106 RES MF 20K 1% 1/4W 144524 R160 RES MF 33.2K 1% 1/4W 144694
R107 RES NETWORK 2 X 220K ISO 144678 R161 RES MF 22.1K 1% 1/4W 144564
R108 RES MF 1K 1% 1/4W 144513 R162 RES MF 221 OHM 1% 1/4W 144559
R109 RES MF 40.2K 1% 1/4W 144525 R163 RES MF 100K 1% 1/4W 144528
R110 RES MF 221 OHM 1% 1/4W 144559 R164 RES MF 100 OHM 1% 1/4W 144568
R111 RES MF 40.2K 1% 1/4W 144525 R165 RES MF 100K 1% 1/4W 144528
R112 RES NETWORK 2 X 220K ISO 144678 R166 RES MF 100 OHM 1% 1/4W 144568
R113 RES MF 20K 1% 1/4W 144524 R167 RES MF 100K 1% 1/4W 144528
R114 RES MF 20K 1% 1/4W 144524 R168 RES MF 22.1K 1% 1/4W 144564
R115 RES NETWORK 2 X 220K ISO 144678 R169 RES MF 1K 1% 1/4W 144513
R116 RES MF 10K 1% 1/4W 144504 R170 RES MF 10K 1% 1/4W 144504
R117 RES MF 10 OHM 1% 1/4W 144553 R171 RES MF 1K 1% 1/4W 144513
R118 RES MF 10K 1% 1/4W 144504 R172 RES MF 1K 1% 1/4W 144513
R119 RES MF 365 OHM 1% 1/4W 144505 R173 RES MF 1K 1% 1/4W 144513
R120 RES MF 3.32K 1% 1/4W 144518 R174 RES MF 10M 1% 1/4W 144575
R121 RES MF 22.1 OHM 1% 1/4W 144554 R175 RES MF 10M 1% 1/4W 144575
R122 RES MF 200K 1% 1/4W 144531 R176 RES MF 332 OHM 1% 1/4W 144646
R123 RES MF 3.32K 1% 1/4W 144518 R177 RES MF 1.82K 1% 1/4W 144582
R124 RES MF 332 OHM 1% 1/4W 144646 R178 RES MF 1.82K 1% 1/4W 144582
R125 RES MF 8.25K 1% 1/4W 144549 R179 RES MF 1.82K 1% 1/4W 144582
R126 RES MF 100K 1% 1/4W 144528 R180 RES MF 1.82K 1% 1/4W 144582
R127 RES MF 221 OHM 1% 1/4W 144559 R181 RES MF 3.32K 1% 1/4W 144518
R128 RES MF 1M 1% 1/4W 144577 R182 RES MF 3.32K 1% 1/4W 144518
R129 RES MF 200K 1% 1/4W 144531 R183 RES MF 365 OHM 1% 1/4W 144505
R130 RES MF 100K 1% 1/4W 144528 R188 RES MF 221K 1% 1/4W 144629
R131 RES MF 475 OHM 1% 1/4W 144509 R189 RES MF 221K 1% 1/4W 144629
R132 RES MF 1K 1% 1/4W 144513 R192 RES MF 33.2K 1% 1/4W 144694
R133 RES MF 1K 1% 1/4W 144513 R193 RES MF 33.2K 1% 1/4W 144694
R134 RES MF 100K 1% 1/4W 144528 R196 RES MF 100K 1% 1/4W 144528
R135 RES MF 267K 1% 1/4W 144532 R197 RES MF 100K 1% 1/4W 144528
R136 RES MF 3.32K 1% 1/4W 144518 R200 RES MF 267K 1% 1/4W 144532
R137 RES MF 1K 1% 1/4W 144513 R201 RES MF 365 OHM 1% 1/4W 144505
R138 RES MF 10K 1% 1/4W 144504 R220 RES MF 47.5K 1% 1/4W 144526
R139 RES MF 10K 1% 1/4W 144504 T1 TRANSFORMER R-CORE POWER 159348
R140 RES MF 33.2K 1% 1/4W 144694 U1 IC REGULATOR 5V 133250
R141 RES MF 200K 1% 1/4W 144531 U2 IC -5V REGULATOR 133253
R142 RES MF 221 OHM 1% 1/4W 144559 U3 IC DUAL OPERATIONAL AMPLIFIER 133260
40
C220
PARTS LIST con't
MAIN PCB 050329 (cont'd)
Ref No. Description Part No. Ref No. Description Part No.
U4 IC SHFT REG SER-PAR 133186 D5 DIODE SILICON 070174
U5 IC STEREO DGTL VOLUME CONTROL 133331 DS1 LED GRN 5MM HI-INTENSITY 058165
U6 IC SHFT REG SER-PAR 133186 (DS1) SPACER LED 112108
U7 IC OCTAL DARLNGTON TRANS ARRAY 133258 DS2 LED GRN 5MM HI-INTENSITY 058165
U8 IC SHFT REG SER-PAR 133186 (DS2) SPACER LED 112108
U9 IC OCTAL DARLNGTON TRANS ARRAY 133258 DS3 LED GRN 5MM HI-INTENSITY 058165
U10 IC DUAL OPERATIONAL AMPLIFIER 133260 (DS3) SPACER LED 112108
U11 IC VOLTAGE REGLTR VARIABLE NEG 133334 DS4 LED GRN 5MM HI-INTENSITY 058165
(U11) HEATSINK TO-220 080017 (DS4) SPACER LED 112108
U12 IC VOLTAGE REGLTR VARIABLE POS 133333 DS5 LED GRN 5MM HI-INTENSITY 058165
(U12) HEATSINK TO-220 080017 (DS5) SPACER LED 112108
U13 IC SHFT REG SER-PAR 133186 DS6 LED GRN 5MM HI-INTENSITY 058165
U14 IC VOLTAGE REGLTR VARIABLE NEG 133334 (DS6) SPACER LED 112108
(U14) HEATSINK TO-220 080017 DS7 DISPLAY 12 CHARACTER 058150
U15 IC VOLTAGE REGLTR VARIABLE POS 133333 DS8 LED GRN 5MM HI-INTENSITY 058165
(U15) HEATSINK TO-220 080017 (DS8) SPACER LED 112108
U16 IC REGULATOR +5V 133108 J1 CONN FFC 18PIN 117765
(U16) HEATSINK TO-220 080017 J2 CONN FFC 18PIN 117765
U17 IC 2 INPUT X 4 133167 J5 CONN FFC 18PIN 117765
U18 IC DUAL OPERATIONAL AMPLIFIER 133260 K1 RELAY REED SPST-NO 5V 1.2A 087078
U19 IC DUAL OPERATIONAL AMPLIFIER 133260 K2 RELAY REED SPST-NO 5V 1.2A 087078
U21 IC DUAL OPERATIONAL AMPLIFIER 133260 K3 RELAY REED SPST-NO 5V 1.2A 087078
V1 SOCKET 9 PIN TUBE CERAMIC 178170 K4 RELAY REED SPST-NO 5V 1.2A 087078
V3 SOCKET 9 PIN TUBE CERAMIC 178170 MTGPA1 DBL COATED MTG-TAPE 1/16 THK 094409
V5 SOCKET 9 PIN TUBE CERAMIC 178170 MTGPA2 DBL COATED MTG-TAPE 1/16 THK 094409
V7 SOCKET 9 PIN TUBE CERAMIC 178170 MTGPA3 DBL COATED MTG-TAPE 1/16 THK 094409
18574 ASSEMBLY INSERTION PCB MAIN 700138 MT1 SENSOR IR 38KHZ 121046
ASSY INSERTION PCB MAIN 701138 Q1 TRANSISTOR PNP 132304
Q3 TRANSISTOR NPN 2K/REEL 132317
3 DISPLAY PCB 050330 R1 RES MF 475K 1% 1/4W 144604
C1 CAP ELECT 10UF 50V 066445 R2 RES MF 10K 1% 1/4W 144504
C2 CAP MONO .1UF 50V 20% Z5U 061346 R3 RES MF 100 OHM 1% 1/4W 144568
C3 CAP ELECT 47UF 35V 066446 R4 RES MF 475 OHM 1% 1/4W 144509
C4 CAP MONO .1UF 50V 20% Z5U 061346 R5 RES MF 10 OHM 1% 1/4W 144553
C5 CAP ELECT 10UF 50V 066445 R6 RES MF 47.5K 1% 1/4W 144526
C6 CAP ELECT 47UF 16V 066380 R7 RES MF 475 OHM 1% 1/4W 144509
C7 CAP MONO .1UF 50V 20% Z5U 061346 R8 RES NET 10K X8 RES BUSSED 144253
C8 CAP MONO .1UF 50V 20% Z5U 061346 R9 RES NETWORK 9X-1-223 144238
C9 CAP ELECT 10UF 50V 066445 R10 RES MF 324 OHM 1% 1/4W 144597
C10 CAP MONO 220PF 200V 10% NPO 061342 R12 RES MF 100 OHM 1% 1/4W 144568
C11 CAP MONO .1UF 50V 20% Z5U 061346 R13 RES MF 47.5K 1% 1/4W 144526
C12 CAP MONO 220PF 200V 10% NPO 061342 R14 RES NETWORK 9X-1-223 144238
C13 CAP MONO 220PF 200V 10% NPO 061342 R15 RES MF 1K 1% 1/4W 144513
C14 CAP MPF 0.033UF 5% 63VDC 064318 R16 RES MF 324 OHM 1% 1/4W 144597
C15 CAP MPF 0.033UF 5% 63VDC 064318 R17 RES MF 324 OHM 1% 1/4W 144597
C16 CAP MPF 0.033UF 5% 63VDC 064318 R18 RES MF 324 OHM 1% 1/4W 144597
C17 CAP MONO .1UF 50V 20% Z5U 061346 R19 RES MF 324 OHM 1% 1/4W 144597
C18 CAP MPF 0.033UF 5% 63VDC 064318 R20 RES MF 324 OHM 1% 1/4W 144597
C19 CAP ELECT 22UF 100V 066574 R22 RES MF 324 OHM 1% 1/4W 144597
C20 CAP MONO .1UF 50V 20% Z5U 061346 R21 RES MF 100K 1% 1/4W 144528
C21 CAP ELECT 22UF 100V 066574 R23 RES MF 100 OHM 1% 1/4W 144568
D1 DIODE SILICON 070174 R24 RES MF 100 OHM 1% 1/4W 144568
D2 DIODE ZENER 6.2V 5% 500MW 070085 R25 RES MF 100 OHM 1% 1/4W 144568
D3 DIODE SILICON 070174 R26 RES MF 221 OHM 1% 1/4W 144559
D4 DIODE SILICON 070174 R27 RES MF 100 OHM 1% 1/4W 144568
41
PARTS LIST con't
DISPLAY PCB 050330 (cont'd)
Ref No. Description Part No. Ref No. Description Part No.
R28 RES MF 2.21K 1% 1/4W 144584 C13 CAP ELECT 10UF 50V 066445
R29 RES MF 1K 1% 1/4W 144513 C14 CAP ELECT 10UF 50V 066445
R30 RES MF 1K 1% 1/4W 144513 C15 CAP ELECT 10UF 50V 066445
R32 RES NETWORK 9X-1-223 144238 C16 CAP ELECT 10UF 50V 066445
R33 RES MF 100 OHM 1% 1/4W 144568 C17 CAP MONO .1UF 50V 20% Z5U 061346
R34 RES MF 100 OHM 1% 1/4W 144568 C18 CAP MONO .1UF 50V 20% Z5U 061346
R35 PC BD TONE 129629 C19 CAP MONO 1000PF 50V 10% NPO 061344
(R35) POT EQUAL 134509 C20 CAP MONO .1UF 50V 20% Z5U 061346
(R35A) CONN 4 PIN RIGHT ANGLE 117927 D1 DIODE SILICON 070174
(R35B) CONN 4 PIN RIGHT ANGLE 117927 D2 DIODE SILICON 070174
(R35C) CONN 4 PIN RIGHT ANGLE 117927 D3 DIODE SILICON 070174
(R35D) CONN 4 PIN RIGHT ANGLE 117927 J1 CONN XLR FEM HORIZ PCB LATCH 117814
R39 RES MF 1M 1% 1/4W 144577 J2 CONN XLR FEM HORIZ PCB LATCH 117814
R43 RES MF 100K 1% 1/4W 144528 J3 CONN XLR FEM HORIZ PCB LATCH 117814
R44 RES MF 681 OHM 1% 1/4W 144567 J4 CONN XLR FEM HORIZ PCB LATCH 117814
R46 RES MF 681 OHM 1% 1/4W 144567 J5 RECEPTACLE XLR MALE 117686
R45 RES MF 100K 1% 1/4W 144528 J6 RECEPTACLE XLR MALE 117686
R47 RES MF 475 OHM 1% 1/4W 144509 J7 CONN FFC 18PIN 117765
R48 RES MF 475 OHM 1% 1/4W 144509 J8 CONN FFC 18PIN 117765
R40 RES MF 1M 1% 1/4W 144577 J9 JACK HEADPHONE DUAL BLACK 1/8 117825
R41 RES MF 1M 1% 1/4W 144577 J10 JACK HEADPHONE DUAL BLACK 1/8 117825
R42 RES MF 1M 1% 1/4W 144577 J11 CONN GOLD F RIGHT ANGLE 117661
S1 ENCODER OPTICAL ROTARY 146246 J12 JACK HEADPHONE DUAL BLACK 1/8 117825
S2 SWITCH ROT PULSE 146258 J13 JACK HEADPHONE DUAL BLACK 1/8 117825
S2 PC BD SWITCH 129294 J14 JACK HEADPHONE DUAL BLACK 1/8 117825
(S2) CONN 3-PIN RIGHTANGLE 117670 J15 JACK HEADPHONE DUAL BLACK 1/8 117825
U1 IC NOR 2 INPUT X 4 133176 J16 CONN FFC 18PIN 117765
U2 IC MICRO RESET POS 133241 K1 RELAY REED SPST-NO 5V 1.2A 087078
U3 IC CMOS EPROM 133249 K2 RELAY REED SPST-NO 5V 1.2A 087078
U4 IC PROGRAMMED V1.00 C220 133584 K3 RELAY REED SPST-NO 5V 1.2A 087078
U3 SOCKET IC 8-POS 178096 K4 RELAY REED SPST-NO 5V 1.2A 087078
U4 SOCKET IC 40-PIN 178133 K5 RELAY REED SPST-NO 5V 1.2A 087078
U6 IC SHFT REG SER-PAR 133186 K6 RELAY REED SPST-NO 5V 1.2A 087078
U8 IC DUAL OPERATIONAL AMPLIFIER 133260 K7 RELAY REED SPST-NO 5V 1.2A 087078
Y1 CERAMIC RESONATOR 12MHZ 180059 K8 RELAY REED SPST-NO 5V 1.2A 087078
Y2 RES MF 8.25K 1% 1/4W 144549 K9 RELAY REED SPST-NO 5V 1.2A 087078
Y2 RESONATOR CERAMIC 2.00MHZ 180064 K10 RELAY REED SPST-NO 5V 1.2A 087078
ASSEMBLY INSERTION PCB DISPLAY 700139 PCB1 PC BD BAL/DATA 129628
ASSY INSERTION PCB DISPLAY 701139 R1 RES MF 221 OHM 1% 1/4W 144559
ASSY DISPLAY PCB SM PART 750360 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
4 BALANCED/DATA PCB 050331 R5 RES MF 100K 1% 1/4W 144528
C1 CAP ELECT 10UF 50V 066445 R6 RES MF 100K 1% 1/4W 144528
C2 CAP ELECT 10UF 50V 066445 R7 RES MF 267K 1% 1/4W 144532
C3 CAP ELECT 10UF 50V 066445 R8 RES MF 267K 1% 1/4W 144532
C4 CAP ELECT 10UF 50V 066445 R9 RES MF 267K 1% 1/4W 144532
C5 CAP ELECT 10UF 50V 066445 R10 RES MF 267K 1% 1/4W 144532
C6 CAP ELECT 10UF 50V 066445 R11 RES MF 267K 1% 1/4W 144532
C7 CAP ELECT 10UF 50V 066445 R12 RES MF 267K 1% 1/4W 144532
C8 CAP ELECT 10UF 50V 066445 R13 RES MF 267K 1% 1/4W 144532
C9 CAP ELECT 10UF 50V 066445 R14 RES MF 267K 1% 1/4W 144532
C10 CAP ELECT 10UF 50V 066445 R15 RES MF 267K 1% 1/4W 144532
C11 CAP ELECT 10UF 50V 066445 R16 RES MF 267K 1% 1/4W 144532
C12 CAP ELECT 10UF 50V 066445 R17 RES MF 267K 1% 1/4W 144532
42
C220
PARTS LIST con't
BALANCED/DATA PCB 050331 (cont'd) 5 TONE PCB 129629 ?????
Ref No. Description Part No. Ref No. Description Part No.
R18 RES MF 267K 1% 1/4W 144532 1 PCB Part Number 129629
R19 RES MF 10 OHM 1% 1/4W 144553 2 LOGO
R20 RES MF 182 OHM 1% 1/4W 144579 J1 CONN 4-PIN RIGHT ANGLE 117927
R21 RES MF 182 OHM 1% 1/4W 144579 J2 CONN 4-PIN RIGHT ANGLE 117927
R22 RES MF 182 OHM 1% 1/4W 144579 R1 Potentiometer 134457
R23 RES MF 182 OHM 1% 1/4W 144579
R24 RES MF 182 OHM 1% 1/4W 144579 7 PUSHBUTTON PCB 050333
R25 RES MF 182 OHM 1% 1/4W 144579
1 Pushbutton PCB 129630
R26 RES MF 182 OHM 1% 1/4W 144579
2 LOGO
R27 RES MF 182 OHM 1% 1/4W 144579
DS1 LED SQUARE RED 58109
R28 RES MF 10 OHM 1% 1/4W 144553
DS2 LED SQUARE RED 58109
R29 RES MF 100 OHM 1% 1/4W 144568
DS3 LED SQUARE RED 58109
R30 RES MF 100 OHM 1% 1/4W 144568
DS4 LED SQUARE RED 58109
R31 RES MF 100 OHM 1% 1/4W 144568
DS5 LED SQUARE RED 58109
R32 RES MF 100 OHM 1% 1/4W 144568
DS6 LED SQUARE RED 58109
R33 RES MF 100 OHM 1% 1/4W 144568
DS7 LED SQUARE RED 58109
R34 RES MF 100 OHM 1% 1/4W 144568
J1 CONN FFC 18PIN 117765
R35 RES MF 100 OHM 1% 1/4W 144568
S1 SWITCH PB TACT 150058
R36 RES MF 100 OHM 1% 1/4W 144568
S2 SWITCH PB TACT 150058
R37 RES MF 1K 1% 1/4W 144513
S3 SWITCH PB TACT 150058
R38 RES MF 221 OHM 1% 1/4W 144559
S4 SWITCH PB TACT 150058
R39 RES MF 1K 1% 1/4W 144513
S5 SWITCH PB TACT 150058
R40 RES MF 1K 1% 1/4W 144513
S6 SWITCH PB TACT 150058
R41 RES MF 1K 1% 1/4W 144513
S7 SWITCH PB TACT 150058
R42 RES MF 40.2K 1% 1/4W 144525
S8 SWITCH PB TACT 150058
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 ? HEADPHONE PCB 050332
U3 IC 8 LN DRIVER ARRAY 133180 1 PCB Part Number 129634
U4 IC SHFT REG SER-PAR 133186 2 LOGO
U5 IC OPERATIONAL AMPLIFIER 133189 J1 HEADPHONE JACK 117881
18574 ASSY INSERTION PCB BAL/DATA 701140 J2 CONN 12 PIN FFC 117720
43
NOTES
44
C220
REPACKING INSTRUCTIONS
45
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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