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POWER AMPLIFIER
CONTENTS
Performance Specifications ........................................ 2 Heatsink 2-Channel Schematic and PCB ............ 21 - 26
Notes ......................................................................... 2 Display Schematic and PCB ............................... 29 - 32
Rear Panel .................................................................. 3 Capacitor Schematic and PCB .................................. 33
Section Location ........................................................ 5 Power Supply Schematic and PCB ..................... 34 - 35
Block Diagram ........................................................... 6 Parts List ............................................................ 36 - 42
Interconnection Diagram ...................................... 7 - 8 Exploded Views and Parts Lists .......................... 43 - 46
Input Schematic and PCB .................................... 9 - 12 Repacking Instruction .............................................. 47
Heatsink 1-Channel Schematic and PCB ............ 13 - 18
SERVICE MANUAL
PERFORMANCE SPECIFICATIONS
Power Output Intermodulation Distortion
Minimum sine wave continuous average power output per Maximum Intermodulation Distortion if instantaneous peak
channel, all channels operating is: 200 watts into 4 ohm or output per channel does not exceed twice the rated output, for
8 ohm load any combination of frequencies from 20Hz to 20,000Hz, with
all channels operating is: 0.005% for 4 or 8 ohm loads
Rated Power Band
20Hz to 20,000Hz Input Impedance
20,000 ohms Balanced
Total Harmonic Distortion 10,000 ohms Unbalanced
Maximum Total Harmonic Distortion at any power level from
250 milliwatts to rated power output is: 0.005% for 4 or 8 Wide Band Damping Factor
ohm loads Greater than 60 at 4 ohms
Greater than 140 at 8 ohms
Dynamic Headroom
1.7dB Power Requirements
100 Volts, 50/60Hz at 1440 watts
Frequency Response 110 Volts, 50/60Hz at 13.0 amps
+0, -0.25dB from 20Hz to 20,000Hz 120 Volts, 50/60Hz at 12.0 amps
+0, -3dB from 10Hz to 100,000Hz 220 Volts, 50/60Hz at 6.0 amps
230 Volts, 50/60Hz at 6.0 amps
Sensitivity 240 Volts, 50/60Hz at 6.0 amps
1.0 Volt Unbalanced with a 4 ohm Loudspeaker Note: Refer to the rear panel of the MC207 for the correct voltage.
2.0 Volt Balanced with a 4 ohm Loudspeaker
1.4 Volt Unbalanced with a 8 ohm Loudspeaker Dimensions
2.8 Volt Balanced with a 8 ohm Loudspeaker Front Panel: 17-1/2 inches (44.45cm) wide, 9-7/16 inches
(23.97cm) high. Depth behind front mounting panel is
A-Weighted Signal To Noise Ratio 18-3/4 inches (47.63cm), including clearance for connectors.
89dB (112dB below rated output)
Weight
83 pounds (37.6kg) net, 116 pounds (52.6kg) in shipping carton
NOTES
1. The heavy lines 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
MC207
REAR PANEL
3
NOTES
4
MC207
SECTION LOCATIONS
TOP VIEW
TOP VIEW WITH COVER REMOVED
5
BLOCK DIAGRAM
6
MC207
1 INTERCONNECT
7 8
2 INPUT 050065
9 10
MC207
2 INPUT 050065
11 12
A
3B HEATSINK 1-CHANNEL 050070
13 14
MC207
A
3B HEATSINK 1-CHANNEL DRIVER SECTION 050070
15 16
A
3B HEATSINK 1-CHANNEL 050070
* Denotes components on reverse or backside of PC Board.
17 18
MC207
NOTES
19 20
A
4B
C
HEATSINK 2-CHANNEL 050064
21 22
MC207
A
4 B
C
HEATSINK 2-CHANNEL DRIVER SECTION 050064
23 24 25
A
3A 4B
B C
HEATSINK 2-CHANNEL 050064 5 DISPLAY ILLUMINATION SECTION 050066
* Denotes components on reverse or backside of PC Board.
26 27 28
MC207
5 DISPLAY METER SECTION 050066 5 DISPLAY POWER GUARD SECTION 050066
29 30
5 DISPLAY 050066
* Denotes components on reverse or backside of PC Board.
31 32
MC207
6 CAPACITOR 050063
* Denotes components on reverse or backside of PC Board.
33
7 POWER SUPPLY 050062
34
MC207
7 POWER SUPPLY 050062
35
PARTS LIST
Ref Part
No. No. Description
1 050065 INPUT PCB
C1 CAP ELECT 10UF 16V 4X5 CASE C28 CAP MONO 47PF 200V 10% NPO
066382 061299
C2 CAP ELECT 10UF 16V 4X5 CASE C29 CAP ELECT 10UF 16V 4X5 CASE
066382 066382
C3 CAP MONO 47PF 200V 10% NPO C30 CAP MONO 47PF 200V 10% NPO
061299 061299
C4 CAP MONO 47PF 200V 10% NPO C31 CAP ELECT 10UF 16V 4X5 CASE
061299 066382
C5 CAP ELECT 10UF 16V 4X5 CASE C32 CAP MONO 22PF 200V 10% NPO
066382 061298
C6 CAP ELECT 10UF 16V 4X5 CASE C33 CAP MONO 47PF 200V 10% NPO
066382 061299
C7 CAP MONO .1uF 50V 20% Z5U C34 CAP ELECT 10UF 16V 4X5 CASE
061305 066382
C8 CAP MONO .1uF 50V 20% Z5U C35 CAP MONO 47PF 200V 10% NPO
061305 061299
C9 CAP MONO 22PF 200V 10% NPO C36 CAP ELECT 10UF 16V 4X5 CASE
2 061298 066382
C10 CAP MONO 22PF 200V 10% NPO C38 CAP MONO 22PF 200V 10% NPO
061298 061298
C11 CAP MONO 47PF 200V 10% NPO C39 CAP MONO .1uF 50V 20% Z5U
061299 061305
C12 CAP ELECT 10UF 50V 066445 C40 CAP MONO .1uF 50V 20% Z5U
C13 CAP MONO 47PF 200V 10% NPO 061305
061299 C41 CAP MONO 47PF 200V 10% NPO
C14 CAP ELECT 10UF 50V 066445 061299
C15 CAP ELECT 10UF 16V 4X5 CASE C43 CAP ELECT 10UF 16V 4X5 CASE
066382 066382
C16 CAP ELECT 10UF 16V 4X5 CASE C44 CAP MONO 47PF 200V 10% NPO
066382 061299
C17 CAP MONO 47PF 200V 10% NPO C45 CAP ELECT 10UF 16V 4X5 CASE
061299 066382
C18 CAP ELECT 10UF 16V 4X5 CASE C46 CAP MONO 22PF 200V 10% NPO
066382 061298
C19 CAP MONO 47PF 200V 10% NPO C47 CAP MONO 22PF 200V 10% NPO
061299 061298
C20 CAP MONO .1uF 50V 20% Z5U J1 CONN MALE 9 POS FRICTION LOCK
061305 117244
C21 CAP MONO .1uF 50V 20% Z5U J2 JACK RCA BLK 117847
061305 J3 JACK RCA 1X2 BLK/BLK 14MM
C22 CAP ELECT 10UF 16V 4X5 CASE 117848
066382 J4 CONN 4 PIN 117215
C23 CAP MONO 22PF 200V 10% NPO J5 CONN 4 PIN 117215
061298 J6 RECEPTACLE XLR FEMALE 117685
C24 CAP MONO .1uF 50V 20% Z5U J7 RECEPTACLE XLR FEMALE 117685
061305 J8 JACK RCA 1X2 BLK/BLK 14MM
C25 CAP MONO .1uF 50V 20% Z5U 117848
061305 J9 CONN 4 PIN 117215
C26 CAP MONO 47PF 200V 10% NPO J10 CONN D 25-PIN 117501
061299 J11 CONN 4 PIN 11721
C27 CAP MONO 22PF 200V 10% NPO J12 RECEPTACLE XLR FEMALE 117685
061298 J13 RECEPTACLE XLR FEMALE 117685
36
MC207
PARTS LIST con't
J14 RECEPTACLE XLR FEMALE 117685 R49 RES MF 221 OHM 1% 1/4W 144172
J16 JACK RCA 1X2 BLK/BLK 14MM R50 RES MF 100K 1% 1/4W 144113
117848 R51 RES MF 20K 1% 1/4W 144104
J17 CONN 4 PIN 117215 R55 RES MF 10K 1% 1/4W 144053
J18 RECEPTACLE XLR FEMALE 117685 R56 RES MF 10K 1% 1/4W 144053
J19 "JACK HEADPHONE DUAL BLACK 1/ R58 RES MF 100K 1% 1/4W 144113
8"",117825""" R59 RES MF 1K 1% 1/4W 144090
J20 RECEPTACLE XLR FEMALE 117685 R60 RES MF 20K 1% 1/4W 144104
R1 RES MF 1K 1% 1/4W 144090 R61 RES MF 221 OHM 1% 1/4W 144172
R2 RES MF 1K 1% 1/4W 144090 R62 RES MF 100K 1% 1/4W 144113
R3 RES MF 20K 1% 1/4W 144104 R63 RES MF 20K 1% 1/4W 144104
R4 RES MF 221 OHM 1% 1/4W 144172 R64 RES MF 100 OHM 1% 1/4W 144196
R5 RES MF 20K 1% 1/4W 144104 R65 RES MF 10K 1% 1/4W 144053
R6 RES MF 221 OHM 1% 1/4W 144172 R66 RES MF 10K 1% 1/4W 144053
R7 RES MF 100K 1% 1/4W 144113 R68 RES MF 100K 1% 1/4W 144113
R8 RES MF 100K 1% 1/4W 144113 S1 SWITCH SLIDE 148059
R9 RES MF 20K 1% 1/4W 144104 SP1 BRACKET PCB CARD MOUNTING
R10 RES MF 20K 1% 1/4W 144104 003611
R11 RES MF 10K 1% 1/4W 144053 U1 IC DUAL OPERATIONAL AMPLIFIER
R12 RES MF 10K 1% 1/4W 144053 133260
R13 RES MF 10 OHM 1% 1/4W 144157 U2 IC DUAL OPERATIONAL AMPLIFIER
R14 RES MF 10K 1% 1/4W 144053 133260
R16 RES MF 100K 1% 1/4W 144113 U3 IC DUAL OPERATIONAL AMPLIFIER
R17 RES MF 10K 1% 1/4W 144053 133260
3A R18 RES MF 100K 1% 1/4W 144113 U4 IC DUAL OPERATIONAL AMPLIFIER
3B
R19 RES MF 10 OHM 1% 1/4W 144157 133260
R20 RES MF 1K 1% 1/4W 144090
R21 RES MF 20K 1% 1/4W 144104 050064 HEATSINK1 PCB
R22 RES MF 221 OHM 1% 1/4W 144172 C1 CAP ELECT 47UF 35V 066446
R23 RES MF 1K 1% 1/4W 144090 C2 CAP ELECT 47UF 35V 066446
R24 RES MF 100K 1% 1/4W 144113 C3 CAP MONO .1uF 50V 20% Z5U
R25 RES MF 20K 1% 1/4W 144104 061305
R26 RES MF 20K 1% 1/4W 144104 C4 CAP POLYPROP 0.15UF 10% 250VDC
R27 RES MF 221 OHM 1% 1/4W 144172 064363
R28 RES MF 100K 1% 1/4W 144113 C7 CAP MONO 100PF 100V 10% NPO
R29 RES MF 10K 1% 1/4W 144053 061300
R30 RES MF 20K 1% 1/4W 144104 C8 CAP MONO 100PF 100V 10% NPO
R31 RES MF 10K 1% 1/4W 144053 061300
R33 RES MF 100K 1% 1/4W 144113 C9 CAP MONO .01UF 50V 20% X7R
R34 RES MF 10K 1% 1/4W 144053 061304
R35 RES MF 10K 1% 1/4W 144053 C14 CAP MONO 100PF 100V 10% NPO
R37 RES MF 100K 1% 1/4W 144113 061300
R38 RES MF 1K 1% 1/4W 144090 C16 CAP MONO .01UF 50V 20% X7R
R39 RES MF 20K 1% 1/4W 144104 061304
R40 RES MF 221 OHM 1% 1/4W 144172 C22 CAP ELECT 220UF 25V 066507
R41 RES MF 100K 1% 1/4W 144113 C27 CAP MONO 100PF 100V 10% NPO
R42 RES MF 20K 1% 1/4W 144104 061300
R43 RES MF 10K 1% 1/4W 144053 C30 CAP ELECT 47UF 35V 066446
R44 RES MF 10K 1% 1/4W 144053 C31 CAP ELECT .47UF 50V 066244
R45 RES MF 100K 1% 1/4W 144113 C32 CAP MONO .1uF 50V 20% Z5U
R46 RES MF 100 OHM 1% 1/4W 144196 061305
R47 RES MF 1K 1% 1/4W 144090 C33 CAP MONO .1uF 50V 20% Z5U
R48 RES MF 20K 1% 1/4W 144104 061305
37
PARTS LIST con't
C35 CAP ELECT 10UF 100VDC 066462 Q41 TRANSISTOR PNP 132224
C36 CAP ELECT 10UF 100VDC 066462 Q49 TRANSISTOR PNP 132224
C37 CAP ELECT 10UF 100VDC 066462 Q50 TRANSISTOR NPN 132223
C38 CAP ELECT 10UF 100VDC 066462 Q51 TRANSISTOR NPN 132223
C40 CAP ELECT 220UF 50V 20% 066254 Q52 TRANSISTOR NPN 132223
C41 CAP ELECT 10UF 100VDC 066462 Q53 TRANSISTOR PNP POWER 132255
C47 CAP POLYPROP .047UF 10% 250VDC Q54 TRANSISTOR PNP 132224
064364 Q55 TRANSISTOR PNP POWER 132255
C51 CAP ELECT 10UF 100VDC 066462 Q56 TRANSISTOR PNP POWER 132255
C200 CAP ELECT 10UF 100VDC 066462 Q59 TRANSISTOR NPN 132223
D1 DIODE SILICON 070047 Q60 TRANSISTOR SI NPN 25V 132254
D2 DIODE SILICON 070047 Q61 TRANSISTOR SI NPN 25V 132254
D4 DIODE SILICON 070047 Q63 TRANSISTOR NPN 132223
D5 DIODE SILICON 070047 Q64 TRANSISTOR PNP POWER 132255
D6 DIODE RECTIFIER 070131 R1 RES MF 332 OHM 1% 1/4W 144446
D7 DIODE RECTIFIER 070131 R2 RES MET OX 680 OHM 5% .5W
IC2 IC DUAL AMP 133259 137093
J1 CONN MALE 9 POS FRICTION LOCK R3 RES MF 22.1K 1% 1/4W 144187
117244 R4 RES MF 100K 1% 1/4W 144113
J2 CONN 4 PIN 117215 R5 RES MF 22.1K 1% 1/4W 144187
J4 CONN HEADER 2 PIN 0.156 117404 R6 RES MET OX 1.8k 5% .5W 137094
J5 BLADE FASTON .110 117712 R7 RES MET OX 430 OHM 5% .5W
J6 BLADE FASTON W/FEET 117708 137095
J8 CONN HEADER 2 PIN 0.156 117404 R8 RES MF 332 OHM 1% 1/4W 144446
J9 CONN 2 PIN MALE 117213 R9 RES MET OX 680 OHM 5% .5W
K1 RELAY 24VDC 5A 277VAC 087057 137093
K2 RELAY 24VDC 5A 277VAC 087057 R10 RES MF 22.1K 1% 1/4W 144187
L2 CHOKE 0.65UH OUTPUT 122297 R11 RES MET OX 1.8k 5% .5W 137094
LD1 LDR NETWORK VTL5C9 144179 R12 RES MET OX 47 OHM 5% .5W
Q1 TRANSISTOR NPN 132223 137096
Q2 TRANSISTOR PNP 132224 R13 POT TRIM 200 OHM 20% HORIZ AD
Q3 TRANSISTOR NPN 132268 134390
Q4 TRANSISTOR PNP 132267 R14 RES MF 100K 1% 1/4W 144113
Q5 TRANSISTOR NPN 132223 R15 RES MF 100 OHM 1% 1/4W 144196
Q6 TRANSISTOR NPN 25C3334C 132285 R16 RES MF 100 OHM 1% 1/4W 144196
Q7 TRANSISTOR PNP 2SA32IC 132286 R17 RES MF 100 OHM 1% 1/4W 144196
Q8 TRANSISTOR PNP POWER 132297 R30 RES MF 475K 1% 1/4W 144364
Q9 TRANSISTOR NPN POWER 132296 R32 RES MF 47.5K 1% 1/4W 144108
Q10 TRANSISTOR PNP POWER 132297 R33 RES MF 47.5K 1% 1/4W 144108
Q11 TRANSISTOR NPN POWER 132296 R34 RES MF 5.11K 1% 1/4W 144083
Q20 TRANSISTOR NPN POWER 132296 R36 RES 511 OHM 1% 1/4W 144123
Q22 TRANSISTOR PNP POWER 132297 R37 RES MF 681K 1% 1/4W 144443
Q23 TRANSISTOR NPN POWER 132296 R38 RES MF 866 OHM 1% 1/4W 144028
Q25 TRANSISTOR PNP POWER 132297 R39 RES MF 2.21 OHM 1/4W 1% 144378
Q27 TRANSISTOR PNP 132224 R41 RES WW DUAL .47 OHM 5% 3W
Q29 TRANSISTOR PNP POWER 132255 139244
Q30 TRANSISTOR SI NPN 25V 132254 R42 RES WW DUAL .47 OHM 5% 3W
Q31 TRANSISTOR NPN 132223 139244
Q32 TRANSISTOR NPN 132223 R43 RES WW DUAL .47 OHM 5% 3W
4A
Q33 TRANSISTOR PNP POWER 132255 139244
4B Q35 TRANSISTOR NPN 132223 R45 RES WW DUAL .47 OHM 5% 3W
4B Q37 TRANSISTOR NPN 25C3334C 132285 139244
Q39 TRANSISTOR PNP 2SA32IC 132286 R46 RES MF 4.75K 1% 1/4W 144097
38
MC207
PARTS LIST con't
R48 RES MF 100 OHM 1% 1/4W 144196 C7 CAP MONO 100PF 100V 10% NPO
R50 RES MF 14.7K 1% 1/4W 144149 061300
R51 RES MF 221 OHM 1% 1/4W 144172 C8 CAP MONO 100PF 100V 10% NPO
R52 RES MF 267K 1% 1/4W 144118 061300
R53 RES MF 221 OHM 1% 1/4W 144172 C9 CAP MONO .01UF 50V 20% X7R
R54 RES MF 3.32K 1% 1/4W 144095 061304
R55 RES MF 3.32K 1% 1/4W 144095 C10 CAP ELECT 47UF 35V 066446
R56 RES MF 10K 1% 1/4W 144053 C11 CAP ELECT 47UF 35V 066446
R57 RES MF 475K 1% 1/4W 144364 C12 CAP MONO 100PF 100V 10% NPO
R58 RES MF 1.1K 1% 1/4W 144091 061300
R59 RES MF 2.21 OHM 1/4W 1% 144378 C13 CAP MONO 100PF 100V 10% NPO
R60 RES FP 22 OHM 1/4W 5% 137033 061300
R62 RES MF 22.1K 1% 1/4W 144187 C14 CAP MONO 100PF 100V 10% NPO
R63 RES FP 22 OHM 1/4W 5% 137033 061300
R65 RES MF 681K 1% 1/4W 144443 C15 CAP MONO .1uF 50V 20% Z5U
R67 RES MF 100 OHM 1% 1/4W 144196 061305
R70 RES MF 100 OHM 1% 1/4W 144196 C16 CAP MONO .01UF 50V 20% X7R
R71 RES MF 100 OHM 1% 1/4W 144196 061304
R72 RES MF 100 OHM 1% 1/4W 144196 C17 CAP MONO .01UF 50V 20% X7R
R77 RES MF 1M 1/4W 144269 061304
R79 RES CF 10 OHM 5% 1/2W 141165 C18 CAP MONO .01UF 50V 20% X7R
R82 RES MF 1M 1/4W 144269 061304
R83 RES MF 10K 1% 1/4W 144053 C19 CAP MONO 100PF 100V 10% NPO
R84 RES MF 47.5K 1% 1/4W 144108 061300
R85 RES MF 1.1K 1% 1/4W 144091 C22 CAP ELECT 220UF 25V 066507
R86 RES MF 4.75K 1% 1/4W 144097 C27 CAP MONO 100PF 100V 10% NPO
R88 RES MF 12.1K 1% 1/4W 144154 061300
R90 RES MF 1.1K 1% 1/4W 144091 C28 CAP MONO 100PF 100V 10% NPO
R93 RES MF 4.75K 1% 1/4W 144097 061300
R101 RES MF 953 OHM 1/4W 1% 144473 C29 CAP ELECT 47UF 35V 066446
R103 RES MF 332K 1% 1/4W 144119 C30 CAP ELECT 47UF 35V 066446
R104 RES MF 15K 1% 1/4W 144412 C31 CAP ELECT .47UF 50V 066244
R105 RES MF 6.49K 1% 1/4W 144140 C32 CAP MONO .1uF 50V 20% Z5U
R106 RES MF 475 OHM 1% 1/4W 144086 061305
R109 RES CF 0 ohm 141389 C33 CAP MONO .1uF 50V 20% Z5U
R111 RES MET OX 430 OHM 5% .5W 061305
137095 C35 CAP ELECT 10UF 100VDC 066462
R114 RES CF 10 OHM 5% 1/2W 141165 C36 CAP ELECT 10UF 100VDC 066462
R119 RES MO 4.7 OHM 1W 5% 144464 C37 CAP ELECT 10UF 100VDC 066462
R122 RES MF 47.5K 1% 1/4W 144108 C38 CAP ELECT 10UF 100VDC 066462
R123 RES MF 22.1K 1% 1/4W 144187 C39 CAP ELECT .47UF 50V 066244
R124 RES MF 47.5K 1% 1/4W 144108 C40 CAP ELECT 220UF 50V 20% 066254
RT1 THERMAL 144249 C41 CAP ELECT 10UF 100VDC 066462
RT2 THERMAL 144249 C44 CAP ELECT 220UF 25V 066507
C47 CAP POLYPROP .047UF 10% 250VDC
064364
050064 HEATSINK2 PCB C48 CAP POLYPROP .047UF 10% 250VDC
C1 CAP ELECT 47UF 35V 066446 064364
C2 CAP ELECT 47UF 35V 066446 C50 CAP ELECT 10UF 100VDC 066462
C3 CAP MONO .1uF 50V 20% Z5U C51 CAP ELECT 10UF 100VDC 066462
061305 C200 CAP ELECT 10UF 100VDC 066462
C4 CAP POLYPROP 0.15UF 10% 250VDC D1 DIODE SILICON 070047
064363 D2 DIODE SILICON 070047
39
PARTS LIST con't
D4 DIODE SILICON 070047 5 Q26 TRANSISTOR PNP POWER 132297
D5 DIODE SILICON 070047 Q27 TRANSISTOR PNP 132224
D6 DIODE RECTIFIER 070131 Q28 TRANSISTOR SI NPN 25V 132254
D7 DIODE RECTIFIER 070131 Q29 TRANSISTOR PNP POWER 132255
D8 DIODE SILICON 070047 Q30 TRANSISTOR SI NPN 25V 132254
D9 DIODE SILICON 070047 Q31 TRANSISTOR NPN 132223
D11 DIODE SILICON 070047 Q32 TRANSISTOR NPN 132223
D12 DIODE SILICON 070047 Q33 TRANSISTOR PNP POWER 132255
D13 DIODE RECTIFIER 070131 Q34 TRANSISTOR NPN 132223
D14 DIODE RECTIFIER 070131 Q35 TRANSISTOR NPN 132223
IC1 IC DUAL AMP 133259 Q36 TRANSISTOR NPN 25C3334C 132285
IC2 IC DUAL AMP 133259 Q37 TRANSISTOR NPN 25C3334C 132285
J1 CONN MALE 9 POS FRICTION LOCK Q38 TRANSISTOR PNP POWER 132255
117244 Q39 TRANSISTOR PNP 2SA32IC 132286
J2 CONN 4 PIN 117215 Q40 TRANSISTOR PNP 132224
J3 CONN HEADER 2 PIN 0.156 117404 Q41 TRANSISTOR PNP 132224
J4 CONN HEADER 2 PIN 0.156 117404 Q42 TRANSISTOR NPN 132223
J5 BLADE FASTON .110 117712 Q43 TRANSISTOR PNP 132224
J6 BLADE FASTON W/FEET 117708 Q44 TRANSISTOR PNP POWER 132255
J8 CONN HEADER 2 PIN 0.156 117404 Q45 TRANSISTOR PNP POWER 132255
J9 CONN 2 PIN MALE 117213 Q46 TRANSISTOR PNP 132224
J10 CONN 2 PIN MALE 117213 Q47 TRANSISTOR SI NPN 25V 132254
K1 RELAY 24VDC 5A 277VAC 087057 Q48 TRANSISTOR PNP 2SA32IC 132286
K2 RELAY 24VDC 5A 277VAC 087057 Q49 TRANSISTOR PNP 132224
L1 CHOKE 0.65UH OUTPUT 122297 Q50 TRANSISTOR NPN 132223
L2 CHOKE 0.65UH OUTPUT 122297 Q51 TRANSISTOR NPN 132223
LD1 LDR NETWORK VTL5C9 144179 Q52 TRANSISTOR NPN 132223
LD2 LDR NETWORK VTL5C9 144179 Q53 TRANSISTOR PNP POWER 132255
Q1 TRANSISTOR NPN 132223 Q54 TRANSISTOR PNP 132224
Q2 TRANSISTOR PNP 132224 Q55 TRANSISTOR PNP POWER 132255
Q3 TRANSISTOR NPN 132268 Q56 TRANSISTOR PNP POWER 132255
Q4 TRANSISTOR PNP 132267 Q57 TRANSISTOR SI NPN 25V 132254
Q5 TRANSISTOR NPN 132223 Q58 TRANSISTOR NPN 132223
Q6 TRANSISTOR NPN 25C3334C 132285 Q59 TRANSISTOR NPN 132223
Q7 TRANSISTOR PNP 2SA32IC 132286 Q60 TRANSISTOR SI NPN 25V 132254
Q8 TRANSISTOR PNP POWER 132297 Q61 TRANSISTOR SI NPN 25V 132254
Q9 TRANSISTOR NPN POWER 132296 Q62 TRANSISTOR PNP 132224
Q10 TRANSISTOR PNP POWER 132297 Q63 TRANSISTOR NPN 132223
Q11 TRANSISTOR NPN POWER 132296 Q64 TRANSISTOR PNP POWER 132255
Q12 TRANSISTOR NPN 132223 R1 RES MF 332 OHM 1% 1/4W 144446
Q13 TRANSISTOR PNP 132224 R2 RES MET OX 680 OHM 5% .5W
Q14 TRANSISTOR NPN 132223 137093
Q15 TRANSISTOR PNP 2SA32IC 132286 R3 RES MF 22.1K 1% 1/4W 144187
Q16 TRANSISTOR NPN 25C3334C 132285 R4 RES MF 100K 1% 1/4W 144113
Q17 TRANSISTOR PNP 132267 R5 RES MF 22.1K 1% 1/4W 144187
Q18 TRANSISTOR NPN 132268 R6 RES MET OX 1.8k 5% .5W 137094
Q19 TRANSISTOR NPN POWER 132296 R7 RES MET OX 430 OHM 5% .5W
Q20 TRANSISTOR NPN POWER 132296 137095
Q21 TRANSISTOR PNP POWER 132297 R8 RES MF 332 OHM 1% 1/4W 144446
Q22 TRANSISTOR PNP POWER 132297 R9 RES MET OX 680 OHM 5% .5W
Q23 TRANSISTOR NPN POWER 132296 137093
Q24 TRANSISTOR NPN POWER 132296 R10 RES MF 22.1K 1% 1/4W 144187
Q25 TRANSISTOR PNP POWER 132297 R11 RES MET OX 1.8k 5% .5W 137094
40
MC207
PARTS LIST con't
R12 RES MET OX 47 OHM 5% .5W R52 RES MF 267K 1% 1/4W 144118
137096 R53 RES MF 221 OHM 1% 1/4W 144172
R13 POT TRIM 200 OHM 20% HORIZ AD R54 RES MF 3.32K 1% 1/4W 144095
134390 R55 RES MF 3.32K 1% 1/4W 144095
R14 RES MF 100K 1% 1/4W 144113 R56 RES MF 10K 1% 1/4W 144053
R15 RES MF 100 OHM 1% 1/4W 144196 R57 RES MF 475K 1% 1/4W 144364
R16 RES MF 100 OHM 1% 1/4W 144196 R58 RES MF 1.1K 1% 1/4W 144091
R17 RES MF 100 OHM 1% 1/4W 144196 R59 RES MF 2.21 OHM 1/4W 1% 144378
R18 RES MET OX 47 OHM 5% .5W R60 RES FP 22 OHM 1/4W 5% 137033
137096 R61 RES MF 100 OHM 1% 1/4W 144196
R19 RES MET OX 1.8k 5% .5W 137094 R62 RES MF 22.1K 1% 1/4W 144187
R20 RES MF 332 OHM 1% 1/4W 144446 R63 RES FP 22 OHM 1/4W 5% 137033
R21 RES MF 22.1K 1% 1/4W 144187 R64 RES MF 10K 1% 1/4W 144053
R22 RES MET OX 680 OHM 5% .5W R65 RES MF 681K 1% 1/4W 144443
137093 R66 RES MF 681K 1% 1/4W 144443
R23 RES MET OX 430 OHM 5% .5W R67 RES MF 100 OHM 1% 1/4W 144196
137095 R68 RES MF 475K 1% 1/4W 144364
R24 RES MET OX 680 OHM 5% .5W R69 RES MF 22.1K 1% 1/4W 144187
137093 R70 RES MF 100 OHM 1% 1/4W 144196
R25 RES MF 22.1K 1% 1/4W 144187 R71 RES MF 100 OHM 1% 1/4W 144196
R26 RES MET OX 1.8k 5% .5W 137094 R72 RES MF 100 OHM 1% 1/4W 144196
R27 RES MF 332 OHM 1% 1/4W 144446 R73 RES MF 100 OHM 1% 1/4W 144196
R28 POT TRIM 200 OHM 20% HORIZ AD R74 RES MF 100 OHM 1% 1/4W 144196
134390 R75 RES MF 267K 1% 1/4W 144118
R29 RES MF 475K 1% 1/4W 144364 R76 RES MF 221 OHM 1% 1/4W 144172
R30 RES MF 475K 1% 1/4W 144364 R77 RES MF 1M 1/4W 144269
R31 RES MF 5.11K 1% 1/4W 144083 R78 RES MF 100 OHM 1% 1/4W 144196
R32 RES MF 47.5K 1% 1/4W 144108 R79 RES CF 10 OHM 5% 1/2W 141165
R33 RES MF 47.5K 1% 1/4W 144108 R80 RES CF 10 OHM 5% 1/2W 141165
R34 RES MF 5.11K 1% 1/4W 144083 R81 RES MF 100 OHM 1% 1/4W 144196
R35 RES MF 47.5K 1% 1/4W 144108 R82 RES MF 1M 1/4W 144269
R36 RES 511 OHM 1% 1/4W 144123 R83 RES MF 10K 1% 1/4W 144053
R37 RES MF 681K 1% 1/4W 144443 R84 RES MF 47.5K 1% 1/4W 144108
R38 RES MF 866 OHM 1% 1/4W 144028 R85 RES MF 1.1K 1% 1/4W 144091
R39 RES MF 2.21 OHM 1/4W 1% 144378 R86 RES MF 4.75K 1% 1/4W 144097
R40 RES WW DUAL .47 OHM 5% 3W R87 RES MF 14.7K 1% 1/4W 144149
139244 R88 RES MF 12.1K 1% 1/4W 144154
R41 RES WW DUAL .47 OHM 5% 3W R89 RES MF 953 OHM 1/4W 1% 144473
139244 R90 RES MF 1.1K 1% 1/4W 144091
R42 RES WW DUAL .47 OHM 5% 3W R91 RES MF 681K 1% 1/4W 144443
139244 R92 RES MF 866 OHM 1% 1/4W 144028
R43 RES WW DUAL .47 OHM 5% 3W R93 RES MF 4.75K 1% 1/4W 144097
139244 R94 RES MF 47.5K 1% 1/4W 144108
R44 RES WW DUAL .47 OHM 5% 3W R95 RES MF 1.1K 1% 1/4W 144091
139244 R96 RES MF 3.32K 1% 1/4W 144095
R45 RES WW DUAL .47 OHM 5% 3W R97 RES 511 OHM 1% 1/4W 144123
139244 R98 RES MF 3.32K 1% 1/4W 144095
R46 RES MF 4.75K 1% 1/4W 144097 R99 RES MF 221 OHM 1% 1/4W 144172
R47 RES MF 4.75K 1% 1/4W 144097 R100 RES MF 1.1K 1% 1/4W 144091
R48 RES MF 100 OHM 1% 1/4W 144196 R101 RES MF 953 OHM 1/4W 1% 144473
R49 RES MF 1.1K 1% 1/4W 144091 R102 RES MF 332K 1% 1/4W 144119
R50 RES MF 14.7K 1% 1/4W 144149 R103 RES MF 332K 1% 1/4W 144119
R51 RES MF 221 OHM 1% 1/4W 144172 R104 RES MF 15K 1% 1/4W 144412
41
PARTS LIST con't
R105 RES MF 6.49K 1% 1/4W 144140 D5 DIODE SILICON 070047
R106 RES MF 475 OHM 1% 1/4W 144086 D6 DIODE SILICON 070047
R107 RES MF 475 OHM 1% 1/4W 144086 D7 DIODE SILICON 070047
R108 RES MF 6.49K 1% 1/4W 144140 D8 DIODE SILICON 070047
R109 RES CF 0 ohm 141389 D9 DIODE SILICON 070047
R110 RES MET OX 430 OHM 5% .5W D10 DIODE SILICON 070047
137095 D11 DIODE SILICON 070047
R111 RES MET OX 430 OHM 5% .5W D12 DIODE SILICON 070047
137095 D13 DIODE SILICON 070047
R112 RES MF 1M 1/4W 144269 D14 DIODE SILICON 070047
R113 RES CF 10 OHM 5% 1/2W 141165 D15 DIODE SILICON 070047
R114 RES CF 10 OHM 5% 1/2W 141165 D16 DIODE SILICON 070047
R115 RES MF 1M 1/4W 144269 D17 DIODE SILICON 070047
R119 RES MO 4.7 OHM 1W 5% 144464 D18 DIODE SILICON 070047
R120 RES MO 4.7 OHM 1W 5% 144464 D19 DIODE SILICON 070047
R122 RES MF 47.5K 1% 1/4W 144108 D20 DIODE SILICON 070047
R123 RES MF 22.1K 1% 1/4W 144187 D21 DIODE SILICON 070047
R124 RES MF 47.5K 1% 1/4W 144108 D22 DIODE SILICON 070047
RT1 THERMAL 144249 D23 DIODE SILICON 070047
RT2 THERMAL 144249 D24 DIODE SILICON 070047
D25 DIODE SILICON 070047
D26 DIODE SILICON 070047
050066 DISPLAY PCB D27 DIODE SILICON 070047
C1 CAP ELECT 10UF 50V 066445 D28 DIODE SILICON 070047
C2 CAP MPF 0.47UF 5% 50/63VDC D29 DIODE SILICON 070047
064333 D30 DIODE SILICON 070047
C3 CAP MONO .1uF 50V 20% Z5U DS1 LED BLUE 5MM HI-INTENSITY
6 061305
C4 CAP MONO .1uF 50V 20% Z5U "VF[V] 3.6""" 058166(1)112108(1)
061305
C5 CAP MPF 0.1UF 5% 63VDC 064325 DS2 LED BLUE 5MM HI-INTENSITY
C6 CAP ELECT 10UF 50V 066445
C7 CAP MPF 0.47UF 5% 50/63VDC "VF[V] 3.6""" 058166(1)112108(1)
064333
C8 CAP MONO .1uF 50V 20% Z5U DS3 LED GREEN 5MM HI-INTENSITY
061305
C9 CAP MONO .1uF 50V 20% Z5U "VF[V] 3.5""" 058165(1)112108(1)
061305
C10 CAP MPF 0.1UF 5% 63VDC 064325 DS4 LED GREEN 5MM HI-INTENSITY
C11 CAP ELECT 10UF 50V 066445
7 C12 CAP MPF 0.47UF 5% 50/63VDC "VF[V] 3.5""" 058165(1)112108(1)
064333
C13 CAP MONO .1uF 50V 20% Z5U DS5 LED RED HIGH EFFICIENCY 058148
061305 DS6 LED BLUE 5MM HI-INTENSITY
C14 CAP ELECT 100UF 16V OR 25V
066447 "VF[V] 3.6""" 058166(1)112108(1)
C15 CAP MPF 0.1UF 5% 63VDC 064325 DS7 LED BLUE 5MM HI-INTENSITY
C16 CAP MONO .1uF 50V 20% Z5U
061305 "VF[V] 3.6""" 058166(1)112108(1)
D1 DIODE SILICON 070047 DS8 LED GREEN 5MM HI-INTENSITY
D2 DIODE SILICON 070047
D3 DIODE SILICON 070047 "VF[V] 3.5""" 058165(1)112108(1)
D4 DIODE SILICON 070047 DS9 LED GREEN 5MM HI-INTENSITY
42
MC207
MC207 EXPLODED VIEW
43 44
MC207 EXPLODED VIEW and PARTS LIST
Ref Part
No. No. Description
1 016507 GLASS 51 114118 TRANSISTOR CLIP 218
2 094360 TAPE FOAM 1/2 X 1/2 52 114119 TRANSISTOR CLIP 214
3 004939 BRACKET EXTRUSION 53 005007 ASSY HEATSINK PCB 1 CH
4 018615 END CAP 9" 54 005439 COVER HEATSINK CH 5-6
5 101042 SCREW TS 4-40 X 1/2 SLOT FILL 55 005406 HEATSINK COVER CENTER
6 094016 TAPE FOAM 1/4 X 1/8 56 005405 COVER HEATSINK CH 1-3
7 098113 CORD DIAL .027 BLACK BRAID SILK 57 084124 POST BINDING DUAL
8 018706 EXTRUSION BOTTOM 58 005419 OUTPUT PLATE TRIPLE
9 100149 SCREW MACH 6-32 X 1/4 FL U/H ST 59 005418 OUTPUT PLATE SINGLE
10 101232 SCREW 6-32 X 1/4 PH FLAT 60 104130 WASHER LOCK #10 SPLIT PHOS/BRNZ
11 018619 EXTRUSION TOP 61 104148 WASHER FLAT BRASS
12 104164 WASHER BLK FELT 1 X 1/4 X 1/16 62 110009 NUT M5 X 0.8 BRASS W/GOLD PLATE
13 049321 ASSY KNOB 63 074091 TERMINAL BLOCK AC
14 092413 ACETATE FILTER BLUE DISPLAY 64 005435 TERMINAL BRACKET
15 005407 SUBPANEL 65 104001 WASHER FLAT STEEL 4 X 9/32 X .025
16 017901 LOGO PUSHBUTTON BACKLIGHT 66 104142 WASHER LOCK 2.5mm INT STAR ZINC
17 017921 LOGO/SELECTOR BACKLIGHT 67 102022 NUT MACH 4-40 X 3/16 X 1/16
18 094429 FOAM TAPE WHITE 1/32" THK 68 114072 RIVET PLASTIC
19 146243 SWITCH POWER 69 005434 TRANSFORMER BRACKET
20 021159 BUSHING SWITCH 70 102003 NUT MACH 6-32 W/LOCK
21 104014 WASHER INT STAR 3/8 X .507 X .002 71 094255 CABLE TIE PANDUIT PLT1M-M
22 124089 METER MC207 72 017452 KLIP WIRE
23 017922 METER BACKLIGHT 73 021094 SPACER 4 X 1/4
24 005411 METER PLATE 74 104014 3/8 INT STAR WASHER
25 102001 NUT KEP 4-40 CADMIUM PLATE 75 084209 THERMSTRATE MC207
26 050066 ASSY METER/DISPLAY PCB 76 102020 NUT MACH 6-32 SELF LOCK
27 112038 SPACER STEEL 4 X 3/8L NCKL PLT 77 050062 ASSY POWER SUPPLY PCB
28 112060 SPACER 4 X 5/16 STEEL 78 018751 SUB HEATSINK
29 005404 DUST COVER 79 114141 CLIP RIGHT ANGLE
30 100287 SCREW MACH 8-32 X 3/8 PH TRUSS HD 80 100250 SCREW MACH SEMS 6-32 X 1/4 PH PN
31 126999 DECAL DUST COVER 81 084208 ISOSTRATE POWER SUPPLY
32 005408 CHASSIS 82 005410 CHASSIS SUPPORT REAR
33 101054 SCREW TAPTITE 6-32 X 1/4 PH PN BLK 83 070139 DIODE BRIDGE RECTIFIER
34 078024 GROMMET RUBBER 1" ID 84 084207 THERMAL PAD 1.25 X 1.25 ALUMINUM
35 078040 GROMMET 3/4" X 1" 85 102006 NUT MACH 10-32 W/LOCK
36 017956 TRANSFORMER SHIELD 86 005401 HEATSINK VENT
37 050061 POTTED TRANSFORMER POWER 87 101176 SCREW TC 6-32 X 1/2 PH PN TYPE F
38 166001 DECAL POWER TRANSFORMER 88 005065 ASSY INPUT PCB
39 050090 CAN POTTED CAPACITOR 89 088023 CIRCUIT BREAKER 10A 240VAC
40 166002 DECAL CAPACITOR COVER 90 117487 RECEPTACLE AC LINE
41 094450 SOUND DAMPING PAD MC207 91 100250 SCREW MACH SEMS 6-32 X 1/4 PH PN
42 050063 ASSY CAPACITOR PCB 92 101197 SCREW HI-LO 4-24 X 3/8 PH RD BLK
43 005413 CAPACITOR CLAMP 93 112015 STANDOFF
44 102045 NUT KEP 6-32 X 1/2 PH PN 94 104004 WASHER LOCK 5 X .255 INT STAR
45 100118 SCREW MACH 6-32 X 1/2 PH PN 95 005400 BOTTOM COVER
46 018750 HEATSINK 96 017937 FOOT
47 084183 ISOSTRATE 97 100159 SCREW MACH 10-32 X 3/4 PH PN
48 050064 ASSY HEATSINK PCB 2 CH 98 101078 ST 8-32 X 5/16 PH PN
49 101059 SCREW SM 6 X 5/8 PH PN TYPE A 99 100173 MS 8-32 X 1/4 PH PN
50 112087 SPACER PCB 1/4"
45 46
MC207
REPACKING INSTRUCTION
47
POWER AMPLIFIER
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.
McINTOSH LABORATORY, INC., 2 CHAMBERS STREET, BINGHAMTON, NEW YORK 13903 Printed in U.S.A. Part Number 040929
Q2 TRANSISTOR PNP 132224 R31 RES MF 5.11K 1% 1/4W 144083
Q3 TRANSISTOR NPN 132268 R32 RES MF 47.5K 1% 1/4W 144108
Q4 TRANSISTOR PNP 132267 R33 RES MF 47.5K 1% 1/4W 144108
Q5 TRANSISTOR NPN 132223 R34 RES MF 5.11K 1% 1/4W 144083
Q7 TRANSISTOR PNP 132286 R35 RES MF 47.5K 1% 1/4W 144108
Q8 TRANSISTOR PNP POWER 132299 R36 RES 511 OHM 1% 1/4W 144123
Q9 TRANSISTOR NPN POWER 132298 R37 RES MF 681K 1% 1/4W 144443
Q10 TRANSISTOR PNP POWER 132299 R38 RES MF 866 OHM 1% 1/4W 144028
Q11 TRANSISTOR NPN POWER 132298 R39 RES MF 2.21 OHM 1/4W 1% 144378
Q12 TRANSISTOR NPN 132223 R40 RES WW DUAL .47 OHM 5% 3W 139244
Q13
Q14
Q15
Q16
TRANSISTOR PNP
TRANSISTOR NPN
TRANSISTOR PNP
TRANSISTOR NPN
132224
132223
132286
132285
R41
R42
R43
R44
RES WW DUAL .47 OHM 5% 3W
RES WW DUAL .47 OHM 5% 3W
RES WW DUAL .47 OHM 5% 3W
RES WW DUAL .47 OHM 5% 3W
139244
139244
139244
139244
POWER AMPLIFIER
Q17
Q18
Q19
TRANSISTOR PNP
TRANSISTOR NPN
TRANSISTOR NPN POWER
132267
132268
132298
R45
R46
R47
RES WW DUAL .47 OHM 5% 3W
RES MF 4.75K 1% 1/4W
RES MF 4.75K 1% 1/4W
139244
144097
144097
SERVICE MANUAL ADDENDUM
Q20 TRANSISTOR NPN POWER 132298 R48 RES MF 100 OHM 1% 1/4W 144196
A
HEATSINK 1-CHANNEL
Q21 TRANSISTOR PNP POWER 132299 R49 RES MF 1.1K 1% 1/4W 144091
Q22
Q23
TRANSISTOR PNP POWER
TRANSISTOR NPN POWER
132299
132298
R50
R51
RES MF 14.7K 1% 1/4W
RES MF 221 OHM 1% 1/4W
144149
144172
3B 050070 HEATSINK ASSEMBLY 050187
Q24 TRANSISTOR NPN POWER 132298 R52 RES MF 267K 1% 1/4W 144118
Q25 TRANSISTOR PNP POWER 132299 R53 RES MF 221 OHM 1% 1/4W 144172
Q26 TRANSISTOR PNP POWER 132299 R54 RES MF 3.32K 1% 1/4W 144095
Q27 TRANSISTOR PNP 132224 R55 RES MF 3.32K 1% 1/4W 144095
Q28 TRANSISTOR SI NPN 25V 132254 R56 RES MF 10K 1% 1/4W 144053
Q29 TRANSISTOR PNP POWER 132255 R57 RES MF 475K 1% 1/4W 144364
Q30 TRANSISTOR SI NPN 25V 132254 R58 RES MF 1.1K 1% 1/4W 144091
Q31 TRANSISTOR NPN 132223 R59 RES MF 2.21 OHM 1/4W 1% 144378
Q32 TRANSISTOR NPN 132223 R60 RES FP 22 OHM 1/4W 5% 137033
Q33 TRANSISTOR PNP POWER 132255 R61 RES MF 100 OHM 1% 1/4W 144196
Q34 TRANSISTOR NPN 132223 R62 RES MF 22.1K 1% 1/4W 144187
Q35 TRANSISTOR NPN 132223 R63 RES FP 22 OHM 1/4W 5% 137033
Q36 TRANSISTOR NPN 132285 R64 RES MF 10K 1% 1/4W 144053
Q37 TRANSISTOR NPN 132285 R65 RES MF 681K 1% 1/4W 144443
Q38 TRANSISTOR PNP POWER 132255 R66 RES MF 681K 1% 1/4W 144443
Q39 TRANSISTOR PNP 132286 R67 RES MF 100 OHM 1% 1/4W 144196
Q40 TRANSISTOR PNP 132224 R68 RES MF 475K 1% 1/4W 144364
Q41 TRANSISTOR PNP 132224 R69 RES MF 22.1K 1% 1/4W 144187
Q42 TRANSISTOR NPN 132223 R70 RES MF 100 OHM 1% 1/4W 144196
Q43 TRANSISTOR PNP 132224 R71 RES MF 100 OHM 1% 1/4W 144196
Q44 TRANSISTOR PNP POWER 132255 R72 RES MF 100 OHM 1% 1/4W 144196
Q45 TRANSISTOR PNP POWER 132255 R73 RES MF 100 OHM 1% 1/4W 144196
Q46 TRANSISTOR PNP 132224 R74 RES MF 100 OHM 1% 1/4W 144196
Q47 TRANSISTOR SI NPN 25V 132254 R75 RES MF 267K 1% 1/4W 144118
Q48 TRANSISTOR PNP 132286 R76 RES MF 221 OHM 1% 1/4W 144172
Q49 TRANSISTOR PNP 132224 R77 RES MF 1M 1/4W 144269
Q50 TRANSISTOR NPN 132223 R78 RES MF 100 OHM 1% 1/4W 144196
Q51 TRANSISTOR NPN 132223 R79 RES CF 10 OHM 5% 1/2W 141165
Q52 TRANSISTOR NPN 132223 R80 RES CF 10 OHM 5% 1/2W 141165
Q53 TRANSISTOR PNP POWER 132255 R81 RES MF 100 OHM 1% 1/4W 144196
Q54 TRANSISTOR PNP 132224 R82 RES MF 1M 1/4W 144269
Q55 TRANSISTOR PNP POWER 132255 R83 RES MF 10K 1% 1/4W 144053
Q56 TRANSISTOR PNP POWER 132255 R84 RES MF 47.5K 1% 1/4W 144108
Q57 TRANSISTOR SI NPN 25V 132254 R85 RES MF 1.1K 1% 1/4W 144091
Q58 TRANSISTOR NPN 132223 R86 RES MF 4.75K 1% 1/4W 144097
Q59 TRANSISTOR NPN 132223 R87 RES MF 14.7K 1% 1/4W 144149
Q60 TRANSISTOR SI NPN 25V 132254 R88 RES MF 12.1K 1% 1/4W 144154
Q61 TRANSISTOR SI NPN 25V 132254 R89 RES MF 953 OHM 1/4W 1% 144473
Q62 TRANSISTOR PNP 132224 R90 RES MF 1.1K 1% 1/4W 144091
Q63 TRANSISTOR NPN 132223 R91 RES MF 681K 1% 1/4W 144443
Q64 TRANSISTOR PNP POWER 132255 R92 RES MF 866 OHM 1% 1/4W 144028
R1 RES MF 332 OHM 1% 1/4W 144446 R93 RES MF 4.75K 1% 1/4W 144097
R2 RES MET OX 680 OHM 5% .5W 137093 R94 RES MF 47.5K 1% 1/4W 144108
R3 RES MF 22.1K 1% 1/4W 144187 R95 RES MF 1.1K 1% 1/4W 144091
R4 RES MF 100K 1% 1/4W 144113 R96 RES MF 3.32K 1% 1/4W 144095
R5 RES MF 22.1K 1% 1/4W 144187 R97 RES 511 OHM 1% 1/4W 144123
R6 RES MET OX 1.8k 5% .5W 137094 R98 RES MF 3.32K 1% 1/4W 144095
R7 RES MET OX 430 OHM 5% .5W 137095 R99 RES MF 221 OHM 1% 1/4W 144172
R8 RES MF 332 OHM 1% 1/4W 144446 R100 RES MF 1.1K 1% 1/4W 144091
R9 RES MET OX 680 OHM 5% .5W 137093 R101 RES MF 953 OHM 1/4W 1% 144473
R10 RES MF 22.1K 1% 1/4W 144187 R102 RES MF 332K 1% 1/4W 144119
R11 RES MET OX 1.8k 5% .5W 137094 R103 RES MF 332K 1% 1/4W 144119
R12 RES MET OX 47 OHM 5% .5W 137096 R104 RES MF 15K 1% 1/4W 144412
R13 POT TRIM 200 OHM 20% HORIZ AD 134390 R105 RES MF 6.49K 1% 1/4W 144140
R14 RES MF 100K 1% 1/4W 144113 R106 RES MF 475 OHM 1% 1/4W 144086
R15 RES MF 100 OHM 1% 1/4W 144196 R107 RES MF 475 OHM 1% 1/4W 144086
R16 RES MF 100 OHM 1% 1/4W 144196 R108 RES MF 6.49K 1% 1/4W 144140
R17 RES MF 100 OHM 1% 1/4W 144196 R109 RES CF 0 OHM 5% 1/4W 141389
R18 RES MET OX 47 OHM 5% .5W 137096 R110 RES MET OX 430 OHM 5% .5W 137095
R19 RES MET OX 1.8k 5% .5W 137094 R111 RES MET OX 430 OHM 5% .5W 137095
R20 RES MF 332 OHM 1% 1/4W 144446 R112 RES MF 1M 1/4W 144269
R21 RES MF 22.1K 1% 1/4W 144187 R113 RES CF 10 OHM 5% 1/2W 141165
R22 RES MET OX 680 OHM 5% .5W 137093 R114 RES CF 10 OHM 5% 1/2W 141165 * Denotes components on reverse or backside of PC Board.
R23 RES MET OX 430 OHM 5% .5W 137095 R115 RES MF 1M 1/4W 144269
R24 RES MET OX 680 OHM 5% .5W 137093 R119 RES MO 4.7 OHM 1W 5% 144464
R25 RES MF 22.1K 1% 1/4W 144187 R120 RES MO 4.7 OHM 1W 5% 144464
R26 RES MET OX 1.8k 5% .5W 137094 R122 RES MF 47.5K 1% 1/4W 144108
R27 RES MF 332 OHM 1% 1/4W 144446 R123 RES MF 22.1K 1% 1/4W 144187
R28 POT TRIM 200 OHM 20% HORIZ AD 134390 R124 RES MF 47.5K 1% 1/4W 144108 MC207.SMA01.040929 090204
R29 RES MF 475K 1% 1/4W 144364 RT1 SENSOR THERMAL 144249 MCINTOSH LABORATORY, INC., 2 CHAMBERS STREET, BINGHAMTON, NEW YORK 13903 Printed in U.S.A.
R30 RES MF 475K 1% 1/4W 144364 RT2 SENSOR THERMAL 144249
A LD1 LDR NETWORK 144179 R83 RES MF 10K 1% 1/4W 144053
4B
C HEATSINK 2-CHANNEL 050064 HEATSINK ASSEMBLY 050188
Q1
Q2
Q3
TRANSISTOR NPN
TRANSISTOR PNP
TRANSISTOR NPN
132223
132224
132268
R84
R85
R86
RES MF 47.5K 1% 1/4W
RES MF 1.1K 1% 1/4W
RES MF 4.75K 1% 1/4W
144108
144091
144097
Q4 TRANSISTOR PNP 132267 R88 RES MF 12.1K 1% 1/4W 144154
Q5 TRANSISTOR NPN 132223 R90 RES MF 1.1K 1% 1/4W 144091
Q6 TRANSISTOR NPN 132285 R93 RES MF 4.75K 1% 1/4W 144097
Q7 TRANSISTOR PNP 132286 R101 RES MF 953 OHM 1/4W 1% 144473
Q8 TRANSISTOR PNP POWER 132299 R103 RES MF 332K 1% 1/4W 144119
Q9 TRANSISTOR NPN POWER 132298 R104 RES MF 15K 1% 1/4W 144412
Q10 TRANSISTOR PNP POWER 132299 R105 RES MF 6.49K 1% 1/4W 144140
Q11 TRANSISTOR NPN POWER 132298 R106 RES MF 475 OHM 1% 1/4W 144086
Q20 TRANSISTOR NPN POWER 132298 R109 RES CF 0 OHM 5% 1/4W 141389
Q22 TRANSISTOR PNP POWER 132299 R111 RES MET OX 430 OHM 5% .5W 137095
Q23 TRANSISTOR NPN POWER 132298 R114 RES CF 10 OHM 5% 1/2W 141165
Q25 TRANSISTOR PNP POWER 132299 R119 RES MO 4.7 OHM 1W 5% 144464
Q27 TRANSISTOR PNP 132224 R122 RES MF 47.5K 1% 1/4W 144108
Q29 TRANSISTOR PNP POWER 132255 R123 RES MF 22.1K 1% 1/4W 144187
Q30 TRANSISTOR SI NPN 25V 132254 R124 RES MF 47.5K 1% 1/4W 144108
Q31 TRANSISTOR NPN 132223 RT1 SENSOR THERMAL 144249
Q32 TRANSISTOR NPN 132223 4A RT2 SENSOR THERMAL 144249
Q33 TRANSISTOR PNP POWER 132255
Q35 TRANSISTOR NPN 132223 4B 050064 HEATSINK 2-CHANNEL PCB
Q37 TRANSISTOR NPN 132285 C1 CAP ELECT 47UF 35V 066446
Q39 TRANSISTOR PNP 132286 4B C2 CAP ELECT 47UF 35V 066446
Q41 TRANSISTOR PNP 132224 C3 CAP MONO .1uF 50V 20% Z5U 061305
Q49 TRANSISTOR PNP 132224 C4 CAP POLYPROP 0.15UF 10% 250VDC 064363
Q50 TRANSISTOR NPN 132223 C7 CAP MONO 100PF 100V 10% NPO 061300
Q51 TRANSISTOR NPN 132223 C8 CAP MONO 100PF 100V 10% NPO 061300
Q52 TRANSISTOR NPN 132223 C9 CAP MONO .01UF 50V 20% X7R 061304