Service Manuals, User Guides, Schematic Diagrams or docs for : . Rare and Ancient Equipment Mc INTOSH Audio MA6300 hfe_mcintosh_ma6300_service_wr1001_en
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INTEGRATED AMPLIFIER
SERIAL NO. WR1001 And Above
CONTENTS
Performance Specifications ........................................ 2 Preamp Schematic and PCB ............................... 17 - 20
Notes ......................................................................... 3 Heatsink Schematic and PCB ............................ 21 - 28
Rear Panel .................................................................. 4 Display Schematic and PCB .............................. 29 - 32
Section Location ........................................................ 4 Push Button Schematic and PCB ....................... 33 - 34
Block Diagram ...................................................... 5 - 6 Meter Schematic and PCB ................................. 35 - 36
Interconnection Diagram ...................................... 7 - 8 Parts List ............................................................ 37 - 42
Main Schematic and PCB ..................................... 9 - 16 Repacking Instruction .............................................. 43
SERVICE MANUAL
PERFORMANCE SPECIFICATIONS
Power Output
100 watts into an 8 ohm load is the minimum sine wave Input Impedance
continuous average power output. The output RMS High Level, 20K ohms
voltage is 28.3V across 8 ohms Phono, 47K ohms; 65pF
160 watts into a 4 ohm load is the minimum sine wave Power Amp In, 10K ohms
continuo us average power output. The output RMS
voltage is 25.3V across 4 ohms Maximum Input Signal
High Level, 8V
Output Load Impedance Phono, 90mV
8 and 4 ohms Power Amplifier In, 8V
Rated Power Band Main Output Impedance
20Hz to 20,000Hz 50 ohms
Total Harmonic Distortion Power Guard
0.005% maximum harmonic distortion at any power level Less than 2% THD with up to 16dB overdrive at 1,000Hz
from 250 milliwatts to rated power, 20Hz to 20,000Hz
Voltage Gain
Dynamic Headroom High Level to Tape Output: 0dB
1.4dB High Level to Main Output: 12dB
Phono to Main Output: 52dB
Frequency Response
+0, -0.5dB from 20Hz to 20,000Hz Power Requirements
+0, -3dB from 10Hz to 100,000Hz 100 Volts, 50/60Hz at 3.6 amps
110 Volts, 50/60Hz at 3.6 amps
Preamplifier Main Output 120 Volts, 50/60Hz at 3.2 amps
1V for rated input (8V Maximun) 220 Volts, 50/60Hz at 1.8 amps
230 Volts, 50/60Hz at 1.8 amps
Sensitivity (for rated output) 240 Volts, 50/60Hz at 1.8 amps
High Level, 250mV unbalanced, 500mV balanced
Phono, 2.5mV Note: Refer to the rear panel of the MA6300 for the
Power Amp In, 1V correct voltage.
Signal To Noise Ratio (A-Weighted) Overall Dimensions
High Level, 97dB below rated output Width is 17-1/2 inches (44.45cm)
Phono, 90dB below 10mV input Height is 7-5/8 inches (19.37cm) including feet
Power Amplifier, 110 below rated output Depth is 22 inches (55.88cm) including the Front Panel,
Knobs and Cables
Intermodulation Distortion
0.005% maximum, if the instantaneous peak power Weight
output is rated power or less per channel with both 37 pounds (16.8 kg) net, 55 pounds (24.9 kg) in shipping
channels operating for any combination of frequencies carton
from 20Hz to 20,000Hz.
Shipping Carton Dimensions
Wide Band Damping Factor Width is 25 inches (63.5cm)
200 at 8 ohms Depth is 27 inches (68.6cm)
100 at 4 ohms Height is 12 inches (30.5cm)
2
MA6300
NOTES
3
MA6300
REAR PANEL
SECTION LOCATIONS
TOP VIEW WITH COVER REMOVED
4
MA6300
INTEGRATED AMPLIFIER
BLOCK DIAGRAM
5 6
INTERCONNECT
7 8
MA6300
INTEGRATED AMPLIFIER
2 MAIN 050276 SCH 1 OF 3
9 10
2 MAIN 050276 SCH 2 OF 3
11 12
MA6300
INTEGRATED AMPLIFIER
2 MAIN 050276 SCH 3 OF 3
13 14
2 MAIN 050276 PCB
15 16
MA6300
INTEGRATED AMPLIFIER
3 PREAMP 050279 SCH
17 18
3 PREAMP 050279 PCB
19 20
MA6300
INTEGRATED AMPLIFIER
4 HEATSINK 050280 SCH 1 OF 3
21 22
4 HEATSINK 050280 SCH 2 OF 3
23 24
MA6300
INTEGRATED AMPLIFIER
4 HEATSINK 050280 SCH 3 OF 3
25 26
4 HEATSINK 050280 PCB
27 28
MA6300
INTEGRATED AMPLIFIER
5 DISPLAY 050277 SCH 1 of 2
29 30
5 DISPLAY 050277 SCH 2 of 2 and PCB
31 32
MA6300
INTEGRATED AMPLIFIER
6 PUSH BUTTON 050278 SCH and PCB
33 34
7 METER 050351 SCH and PCB
35 36
MA6300
PARTS LIST
2 MAIN PCB 050276
Ref No. Description Part No. Ref No. Description Part No.
C1 CAP POLYPROP 0.15UF 10% 250VDC 064363 C63 CAP MONO 100PF 100V 10% NPO 061341
C2 CAP MPF 0.1UF 5% 63VDC 064325 C64 CAP MONO 47PF 200V 10% NPO 061340
C3 CAP MONO .1UF 50V 20% Z5U 061346 C65 CAP MONO 100PF 100V 10% NPO 061341
C4 CAP ELECT 3300UF 35V 066509 C66 CAP MONO 47PF 200V 10% NPO 061340
C5 CAP ELECT 22000UF 63V 066557 C67 CAP MONO 100PF 100V 10% NPO 061341
C6 CAP ELECT 3300UF 35V 066509 C68 CAP MONO 47PF 200V 10% NPO 061340
C7 CAP ELECT 22000UF 63V 066557 C69 CAP MPF 0.01UF 5% 63VDC 064312
C8 CAP ELECT 3300UF 35V 066509 C70 CAP MPF 0.01UF 5% 63VDC 064312
C9 CAP ELECT 3300UF 35V 066509 C71 CAP MPF 0.033UF 5% 63VDC 064318
C10 CAP ELECT 3300UF 35V 066509 C72 CAP MPF 0.033UF 5% 63VDC 064318
C11 CAP ELECT 1000UF 25V 066513 C73 CAP ELECT 47UF 35V 066446
C12 CAP ELECT 1000UF 25V 066513 C74 CAP MONO .1UF 50V 20% Z5U 061346
C13 CAP ELECT 220UF 25V 066507 C75 CAP MONO .1UF 50V 20% Z5U 061346
C14 CAP MONO .1UF 50V 20% Z5U 061346 D1 DIODE RECTIFIER 070175
C15 CAP MONO .1UF 50V 20% Z5U 061346 D2 DIODE SILICON 070174
C16 CAP MONO .1UF 50V 20% Z5U 061346 D3 DIODE SILICON 070174
C17 CAP ELECT 47UF 35V 066446 D4 DIODE SILICON 070174
C18 CAP MONO .1UF 50V 20% Z5U 061346 D5 DIODE SIL 400 PIV @ 1.5A 070031
C19 CAP ELECT 10UF 50V 066445 D6 DIODE SIL 400 PIV @ 1.5A 070031
C20 CAP ELECT 10UF 50V 066445 D7 DIODE SIL 400 PIV @ 1.5A 070031
C21 CAP MONO 220PF 200V 10% NPO 061342 D8 DIODE SIL 400 PIV @ 1.5A 070031
C22 CAP MONO .1UF 50V 20% Z5U 061346 D9 RECTIFIER BRIDGE PCB 35A 600V 070187
C23 CAP MONO .1UF 50V 20% Z5U 061346 D10 DIODE SIL 400 PIV @ 1.5A 070031
C24 CAP MONO .1UF 50V 20% Z5U 061346 D11 DIODE SIL 400 PIV @ 1.5A 070031
C25 CAP MONO .1UF 50V 20% Z5U 061346 D12 DIODE SIL 400 PIV @ 1.5A 070031
C28 CAP ELECT 10UF 16V 066580 D13 DIODE SIL 400 PIV @ 1.5A 070031
C29 CAP ELECT 10UF 16V 066580 D14 DIODE SILICON 070174
C30 CAP ELECT 10UF 16V 066580 D15 DIODE SILICON 070174
C31 CAP ELECT 10UF 16V 066580 D16 DIODE SILICON 070174
C32 CAP ELECT 10UF 16V 066580 GP4 BRACKET PCB CARD MOUNTING 003611
C33 CAP ELECT 10UF 16V 066580 (GP4) RIVET 1/8X3/16 STEEL 108011
C34 CAP ELECT 10UF 16V 066580 GP5 BRACKET PCB CARD MOUNTING 003611
C35 CAP ELECT 10UF 16V 066580 (GP5) RIVET 1/8X3/16 STEEL 108011
C36 CAP ELECT 10UF 16V 066580 HS1 HEATSINK T0220 080021
C37 CAP ELECT 10UF 16V 066580 (HS1) SCREW MACH 4-40X1/4 PAN PH BLK 400121
C38 CAP ELECT 10UF 16V 066580 (HS1) NUT KEP 4-40 CLR 402001
C39 CAP ELECT 10UF 16V 066580 (HS1) INSULATOR ISOSTRATE TO 220 084133
C40 CAP ELECT 10UF 16V 066580 HS2 HEATSINK T0220 080021
C41 CAP ELECT 10UF 16V 066580 (HS2) SCREW MACH 4-40X1/4 PAN PH BLK 400121
C42 CAP ELECT 10UF 16V 066580 (HS2) NUT KEP 4-40 CLR 402001
C43 CAP ELECT 10UF 16V 066580 (HS2) INSULATOR ISOSTRATE TO 220 084133
C44 CAP ELECT 10UF 16V 066580 HS3 HEATSINK T0220 080021
C45 CAP ELECT 10UF 16V 066580 (HS3) SCREW MACH 4-40X1/4 PAN PH BLK 400121
C46 CAP ELECT 10UF 16V 066580 (HS3) NUT KEP 4-40 CLR 402001
C47 CAP MONO 100PF 100V 10% NPO 061341 (HS3) INSULATOR ISOSTRATE TO 220 084133
C48 CAP MONO 47PF 200V 10% NPO 061340 J1 BLADE FASTON W/FEET 117708
C49 CAP ELECT 10UF 16V 066580 J2 BLADE FASTON W/FEET 117708
C50 CAP ELECT 10UF 16V 066580 J3 BLADE FASTON W/FEET 117708
C51 CAP ELECT 10UF 16V 066580 J4 BLADE FASTON W/FEET 117708
C52 CAP ELECT 10UF 16V 066580 J5 BLADE FASTON W/FEET 117708
C53 CAP MONO 100PF 100V 10% NPO 061341 J6 BLADE FASTON W/FEET 117708
C54 CAP MONO 100PF 100V 10% NPO 061341 J7 BLADE FASTON W/FEET 117708
C55 CAP MONO 100PF 100V 10% NPO 061341 J8 CONN 2 PIN MALE 117213
C56 CAP MONO 100PF 100V 10% NPO 061341 J9 CONN 3 POS MALE LARGE FRCTN LK 117293
C57 CAP ELECT 47UF 35V 066446 J10 CONN 23 PIN FFC 117906
C58 CAP MONO 100PF 100V 10% NPO 061341 J11 JACK HEADPHONE DUAL BLACK 1/8" 117549
C59 CAP MONO 100PF 100V 10% NPO 061341 J12 JACK HEADPHONE DUAL BLACK 1/8" 117549
C60 CAP ELECT 10UF 16V 066580 J13 JACK HEADPHONE DUAL BLACK 1/8" 117549
C61 CAP ELECT 470UF 16V 066508 J14 JACK HEADPHONE DUAL BLACK 1/8" 117549
C62 CAP ELECT 470UF 16V 066508 J15 CONN 12 PIN FFC 117907
37
PARTS LIST cont'd.
MAIN PCB 050276 (Cont'd.)
Ref No. Description Part No. Ref No. Description Part No.
J16 JACK RCA 4X2 WHT/RED 14MM 117791 R31 RES MF 10K 1% 1/4W 144504
J17 JACK RCA 4X2 WHT/RED 14MM 117791 R33 RES MF 221 OHM 1% 1/4W 144559
J18 CONN XLR FEM HORIZ PCB LATCH 117814 R34 RES NETWORK 2X220K ISO 144678
J19 CONN XLR FEM HORIZ PCB LATCH 117814 R35 RES MF 221 OHM 1% 1/4W 144559
J20 JACK RCA 1X2 WHT/RED 14MM 117788 R36 RES NETWORK 2X220K ISO 144678
K1 RELAY 12VDC 5A 250VAC TV-4 087077 R37 RES NETWORK 2X220K ISO 144678
K2 RELAY REED SPST-NO 5V 1.2A 087078 R38 RES NETWORK 2X220K ISO 144678
K3 RELAY REED SPST-NO 5V 1.2A 087078 R39 RES NETWORK 2X220K ISO 144678
K4 RELAY REED SPST-NO 5V 1.2A 087078 R40 RES NETWORK 2X220K ISO 144678
K5 RELAY REED SPST-NO 5V 1.2A 087078 R41 RES NET 2 X 22K ISOLATED 144689
K6 RELAY REED SPST-NO 5V 1.2A 087078 R42 RES NET 2 X 22K ISOLATED 144689
K7 RELAY REED SPST-NO 5V 1.2A 087078 R43 RES MF 22.1K OHM 1% 1/4W 144564
K8 RELAY REED SPST-NO 5V 1.2A 087078 R44 RES MF 1K 1% 1/4W 144513
K9 RELAY REED SPST-NO 5V 1.2A 087078 R45 RES NETWORK 2X220K ISO 144678
K10 RELAY REED SPST-NO 5V 1.2A 087078 R46 RES MF 1K 1% 1/4W 144513
K11 RELAY REED SPST-NO 5V 1.2A 087078 R47 RES MF 1K 1% 1/4W 144513
K12 RELAY REED SPST-NO 5V 1.2A 087078 R48 RES MF 20K 1% 1/4W 144524
K13 RELAY REED SPST-NO 5V 1.2A 087078 R49 RES MF 20K 1% 1/4W 144524
K14 RELAY REED SPST-NO 5V 1.2A 087078 R50 RES MF 20K 1% 1/4W 144524
K15 RELAY REED SPST-NO 5V 1.2A 087078 R51 RES MF 20K 1% 1/4W 144524
K16 RELAY REED SPST-NO 5V 1.2A 087078 R52 RES MF 10K 1% 1/4W 144504
K17 RELAY REED SPST-NO 5V 1.2A 087078 R53 RES MF 10K 1% 1/4W 144504
K18 RELAY REED SPST-NO 5V 1.2A 087078 R54 RES MF 10K 1% 1/4W 144504
K19 RELAY REED SPST-NO 5V 1.2A 087078 R55 RES MF 10K 1% 1/4W 144504
PCB1 PC BD MAIN 129655 R56 RES MF 22.1 OHM 1% 1/4W 144554
Q1 TRANSISTOR PNP SILICON 132304 R57 RES MF 22.1K OHM 1% 1/4W 144564
Q2 TRANSISTOR NPN SILICON 132317 R58 RES NETWORK 2X220K ISO 144678
Q3 TRANSISTOR PNP SILICON 132304 R59 RES MF 95.3 OHM 1% 1/4W 144572
Q4 TRANSISTOR NPN SILICON 132317 R60 RES MF 95.3 OHM 1% 1/4W 144572
R1 RES POLYSWITCH RXE110 144671 R61 RES MF 1K 1% 1/4W 144513
R2 RES POLYSWITCH RXE110 144671 R62 RES MF 47.5K 1% 1/4W 144526
R3 RES MF 2.21 OHM 1% 1/4W 144607 R63 RES MF 47.5K 1% 1/4W 144526
R4 RES MF 22.1K OHM 1% 1/4W 144564 R64 RES MF 7.5K OHM 0.5% 1/4W 144605
R5 RES MF 100K 1% 1/4W 144528 R65 RES MF 7.5K OHM 0.5% 1/4W 144605
R6 RES MF 47.5K 1% 1/4W 144526 R66 RES MF 89.8K 0.5% 1/4W 144606
R7 RES MF 47.5K 1% 1/4W 144526 R67 RES MF 89.8K 0.5% 1/4W 144606
R8 RES MF 47.5K 1% 1/4W 144526 R68 RES MF 47.5 OHM 1% 1/4W 144642
R9 RES NETWORK 9X-1-223 144498 R69 RES MF 2.21 OHM 1% 1/4W 144607
R10 RES MF 10K 1% 1/4W 144504 R70 RES MF 47.5 OHM 1% 1/4W 144642
R11 RES MF 10 OHM 1% 1/4W 144553 R71 RES MF 2.21 OHM 1% 1/4W 144607
R12 RES MF 100 OHM 1% 1/4W 144568 R72 RES MF 22.1 OHM 1% 1/4W 144554
R13 RES MF 475K 1% 1/4W 144604 U1 IC REGULATOR 15V 133589
R14 RES NETWORK 9X-1-223 144498 U2 IC REGULATOR -15V 133588
R15 RES MF 2.21 OHM 1% 1/4W 144607 U3 IC REGULATOR 5V 1.5A LOW DROP 133610
R16 RES MF 1K 1% 1/4W 144513 U4 IC NAND 2 INPUT X 4 133575
R17 RES MF 100K 1% 1/4W 144528 U5 IC PROGRAMMED V1.00 MA6300 133563
R18 RES MF 3.32K 1% 1/4W 144518 (U5) SOCKET IC 40-PIN 178133
R19 RES MF 182 OHM 1% 1/4W 144579 U6 IC MICRO RESET POS 133241
R20 RES MF 182 OHM 1% 1/4W 144579 U7 IC AND 2 INPUT X 4 133577
R21 RES MF 182 OHM 1% 1/4W 144579 U8 IC SHFT REG SER-PAR 133594
R22 RES MF 100 OHM 1% 1/4W 144568 U9 IC SHFT REG SER-PAR 133594
R23 RES MF 100 OHM 1% 1/4W 144568 U10 IC SHFT REG SER-PAR 133594
R24 RES MF 100 OHM 1% 1/4W 144568 U11 IC OCTAL DAR TRNS ARRY W/DIODE 133624
R25 RES MF 100 OHM 1% 1/4W 144568 U12 IC 8 LN DRIVER ARRAY 133180
R26 RES MF 100 OHM 1% 1/4W 144568 U13 IC DUAL OPERATIONAL AMPLIFIER 133578
R27 RES MF 100 OHM 1% 1/4W 144568 U14 IC DUAL OPERATIONAL AMPLIFIER 133578
R28 RES MF 100 OHM 1% 1/4W 144568 U15 IC OPERATIONAL AMP LOW NOISE 133565
R29 RES MET OX 47 OHM 5% 1/2W 137102 U16 IC OPERATIONAL AMP LOW NOISE 133565
R30 RES MF 10K 1% 1/4W 144504 Y1 CERAMIC RESONATOR 12MHZ 180059
38
MA6300
PARTS LIST cont'd.
3 PREAMP PCB 050279
Ref No. Description Part No. Ref No. Description Part No.
C1 CAP ELECT 220UF 25V 066507 R22 RES MF 33.2K 1% 1/4W 144694
C2 CAP ELECT 47UF 25V 20% BP 066556 R23 RES MF 33.2K 1% 1/4W 144694
C3 CAP MPF 0.22UF 5% 63VDC 064329 R24 RES MF 47.5 OHM 1% 1/4W 144642
C4 CAP MPF 0.22UF 5% 63VDC 064329 R25 RES MF 47.5 OHM 1% 1/4W 144642
C5 CAP MONO 100PF 100V 10% NPO 061341 R26 RES MF 221 OHM 1% 1/4W 144559
C6 CAP MONO 100PF 100V 10% NPO 061341 R27 RES MF 221 OHM 1% 1/4W 144559
C7 CAP MONO 100PF 100V 10% NPO 061341 R28 RES MF 4.99K 1% 1/4W 144521
C8 CAP MONO 100PF 100V 10% NPO 061341 R29 RES MF 4.99K 1% 1/4W 144521
C9 CAP MONO .1UF 50V 20% Z5U 061346 R30 RES MF 1K 1% 1/4W 144513
C10 CAP MONO 100PF 100V 10% NPO 061341 R31 RES MF 1K 1% 1/4W 144513
C11 CAP MONO 100PF 100V 10% NPO 061341 R32 RES MF 100 OHM 1% 1/4W 144568
C12 CAP MONO .1UF 50V 20% Z5U 061346 R33 RES MF 100 OHM 1% 1/4W 144568
C13 CAP ELECT 47UF 35V 066446 U1 IC DC MOTOR DRIVER 133191
C14 CAP ELECT 47UF 35V 066446 U2 IC DUAL OPERATIONAL AMPLIFIER 133260
C15 CAP MPF 0.22UF 5% 63VDC 064329 U3 IC DUAL OPERATIONAL AMPLIFIER 133260
C16 CAP MPF 0.22UF 5% 63VDC 064329 U4 IC DUAL OPERATIONAL AMPLIFIER 133260
C17 CAP MPF 0.22UF 5% 63VDC 064329
C18 CAP MPF 0.22UF 5% 63VDC 064329
C19 CAP MONO .1UF 50V 20% Z5U 061346
C20 CAP MONO .1UF 50V 20% Z5U 061346 4 HEATSINK PCB 050280
C21 CAP ELECT 22UF 100V 066574 C1 CAP ELECT 10UF 100VDC 066462
C22 CAP ELECT 22UF 100V 066574 C2 CAP ELECT 10UF 100VDC 066462
C23 CAP ELECT 100UF 25V 066447 C3 CAP MONO .1UF 50V 20% Z5U 061346
C24 CAP ELECT 100UF 25V 066447 C4 CAP MONO .1UF 50V 20% Z5U 061346
C25 CAP MONO .1UF 50V 20% Z5U 061346 C5 CAP ELECT 10UF 100VDC 066462
C29 CAP MONO 220PF 200V 10% 061342 C6 CAP ELECT 10UF 50V 066445
C30 CAP MONO 220PF 200V 10% 061342 C7 CAP ELECT 10UF 100VDC 066462
C26 CAP MONO .1UF 50V 20% Z5U 061346 C8 CAP ELECT 100UF 25V 066573
C27 CAP ELECT 10UF 50V 066445 C9 CAP ELECT 10UF 50V 066445
C28 CAP ELECT 10UF 50V 066445 C10 CAP ELECT 10UF 50V 066445
D1 DIODE SILICON 070174 C11 CAP MONO 100PF 100V 10% NPO 061341
J1 CONN 12 PIN FFC 117720 C12 CAP MONO 100PF 100V 10% NPO 061341
J2 CONN 12 PIN FFC 117720 C13 CAP ELECT 220UF 25V 066507
J3 CONN 12 PIN FFC 117720 C14 CAP MONO 100PF 100V 10% NPO 061341
J4 CONN 12 PIN FFC 117720 C15 CAP MONO .01UF 50V 20% X7R 061345
J5 CONN 12 PIN FFC 117720 C16 CAP ELECT 22UF 100V 066574
J6 CONN 12 POS MALE RT ANGLE 117816 C17 CAP ELECT 22UF 100V 066574
K1 RELAY REED SPST-NO 5V 1.2A 087078 C18 CAP MONO .01UF 50V 20% X7R 061345
PCB1 PC BD PREAMP 129607 C19 CAP MONO .1UF 50V 20% Z5U 061346
R1 RES MF 1.5K 1% 1/4W 144539 C20 CAP MONO 100PF 100V 10% NPO 061341
R2 RES MF 1.5K 1% 1/4W 144539 C21 CAP MONO 100PF 100V 10% NPO 061341
R3 RES MF 10 OHM 1% 1/4W 144553 C22 CAP MONO .1UF 50V 20% Z5U 061346
R4 RES MF 10 OHM 1% 1/4W 144553 C23 CAP POLYPROP .047UF 10% 250VDC 064364
R5 RES MF 10 OHM 1% 1/4W 144553 C24 CAP MONO .1UF 50V 20% Z5U 061346
R6 RES MF 4.75K 1% 1/4W 144520 C25 CAP ELECT 10UF 50V 066445
R7 RES MF 4.75K 1% 1/4W 144520 C26 CAP ELECT 10UF 50V 066445
R8 POT 50KAX2 134490 C27 CAP MONO 100PF 100V 10% NPO 061341
R9 RES MF 187K 1% 1/4W 144621 C28 CAP MONO 100PF 100V 10% NPO 061341
R10 RES MF 1K 1% 1/4W 144513 C29 CAP ELECT 220UF 25V 066507
R11 RES MF 1K 1% 1/4W 144513 C30 CAP MONO 100PF 100V 10% NPO 061341
R12 RES MF 187K 1% 1/4W 144621 C31 CAP MONO .01UF 50V 20% X7R 061345
R13 RES MF 1.5K 1% 1/4W 144539 C32 CAP ELECT 22UF 100V 066574
R14 RES MF 1.5K 1% 1/4W 144539 C33 CAP ELECT 22UF 100V 066574
R15 RES MF 4.75K 1% 1/4W 144520 C34 CAP MONO .01UF 50V 20% X7R 061345
R16 RES MF 4.75K 1% 1/4W 144520 C35 CAP MONO .1UF 50V 20% Z5U 061346
R17 POT BALANCE 2KOHM 134464 C36 CAP MONO 100PF 100V 10% NPO 061341
R18 RES MF 121K 1% 1/4W 144626 C37 CAP MONO 100PF 100V 10% NPO 061341
R19 RES MF 121K 1% 1/4W 144626 C38 CAP MONO .1UF 50V 20% Z5U 061346
R20 RES MF 47.5K 1% 1/4W 144526 C39 CAP POLYPROP .047UF 10% 250VDC 064364
R21 RES MF 47.5K 1% 1/4W 144526 C40 CAP MONO .1UF 50V 20% Z5U 061346
39
PARTS LIST cont'd.
HEATSINK PCB 050280 (Cont'd.)
Ref No. Description Part No. Ref No. Description Part No.
D1 DIODE SILICON 070174 Q46 TRANSISTOR PNP 120V 132255
D2 DIODE SILICON 070174 Q47 TRANSISTOR NPN 2K/REEL 132317
D3 DIODE SILICON 070174 Q48 TRANSISTOR PNP 132304
D4 DIODE SILICON 070174 Q49 TRANSISTOR PNP 132321
D5 DIODE SILICON 070174 Q50 TRANSISTOR NPN 132322
D6 DIODE SILICON 070174 Q51 TRANSISTOR NPN 2K/REEL 132317
D7 DIODE SILICON 070174 Q52 TRANSISTOR PNP 132304
D8 DIODE SILICON 070174 Q55 TRANSISTOR NPN 2K/REEL 132317
D9 DIODE SILICON 070174 Q56 TRANSISTOR NPN 132322
D10 DIODE SILICON 070174 Q57 TRANSISTOR PNP 132321
D11 DIODE SILICON 070174 R1 RES FP 10 OHM 5% 1/4W 137105
GP1 STANDOFF 6-32 X 1/4 MOUNT PCB 112130 R2 RES FP 10 OHM 5% 1/4W 137105
GP2 STANDOFF 6-32 X 1/4 MOUNT PCB 112130 R3 RES MET OX 47 OHM 5% 1/2W 137102
J7 J8 CONN 2 PIN MALE 117213 R4 RES MET OX 47 OHM 5% 1/2W 137102
J2 CONN 3 POS MALE LARGE FRCTN LK 117293 R6 RES MF 4.75K 1% 1/4W 144520
J5 J6 CONN HEADER 2 PIN 0.156 117404 R5 RES MF 47.5K 1% 1/4W 144526
J1 BLADE FASTON W/FEET 117708 R7 RES MF 47.5K 1% 1/4W 144526
J3 J4 CONN 12 PIN FFC 117720 R8 RES MF 22.1K 1% 1/4W 144564
K1 RELAY 12VDC 5A 250VAC TV-4 087077 R9 RES MF 22.1K 1% 1/4W 144564
L1 L2 CHOKE 0.65UH OUTPUT 122297 R10 RES MF 6.49K 1% 1/4W 144617
PCB1 PD BD HEATSINK 129608 R11 RES MF 22.1K 1% 1/4W 144564
Q1 TRANSISTOR NPN 2K/REEL 132317 R12 RES MF 6.49K 1% 1/4W 144617
Q2 TRANSISTOR NPN 2K/REEL 132317 R13 RES MF 10K 1% 1/4W 144504
Q3 TRANSISTOR PNP 132304 R14 RES MF 22.1K 1% 1/4W 144564
Q4 TRANSISTOR PNP 132304 R15 RES MF 10K 1% 1/4W 144504
Q5 TRANSISTOR PNP 132304 R16 RES MF 15K 1% 1/4W 144623
Q6 TRANSISTOR PNP 132304 R17 RES MF 15K 1% 1/4W 144623
Q7 TRANSISTOR PNP 132304 R18 RES MF 10K 1% 1/4W 144504
Q8 TRANSISTOR NPN 2K/REEL 132317 R19 RES MF 10K 1% 1/4W 144504
Q9 TRANSISTOR N JFET 132318 R20 RES MF 40.2K 1% 1/4W 144525
Q10 TRANSISTOR PNP 132304 R21 RES MF 267K 1% 1/4W 144532
Q11 TRANSISTOR PNP 132304 R22 RES MF 267K 1% 1/4W 144532
Q12 TRANSISTOR NPN 132254 R23 RES MF 499 OHM 1% 1/4W 144510
Q13 TRANSISTOR PNP 120V 132255 R24 RES MF 475 OHM 1% 1/4W 144509
Q14 TRANSISTOR NPN 132254 R25 RES MF 499 OHM 1% 1/4W 144510
Q15 TRANSISTOR PNP 120V 132255 R26 RES MF 267K 1% 1/4W 144532
Q16 TRANSISTOR NPN 2K/REEL 132317 R27 RES MF 10K 1% 1/4W 144504
Q17 TRANSISTOR PNP 132304 R28 RES MF 681K 1% 1/4W 144643
Q18 TRANSISTOR NPN 132254 R29 RES MF 47.5K 1% 1/4W 144526
Q19 TRANSISTOR PNP 120V 132255 R30 RES MF 499 OHM 1% 1/4W 144510
Q20 TRANSISTOR NPN 2K/REEL 132317 R31 RES MF 2.74K 1% 1/4W 144587
Q21 TRANSISTOR PNP 132304 R32 RES MF 1.1K 1% 1/4W 144514
Q22 TRANSISTOR PNP 132321 R33 RES MF 1K 1% 1/4W 144513
Q23 TRANSISTOR NPN 132322 R34 RES MF 2.74K 1% 1/4W 144587
Q24 TRANSISTOR NPN 2K/REEL 132317 R35 RES MF 475K 1% 1/4W 144604
Q25 TRANSISTOR PNP 132304 R36 RES MF 15K 1% 1/4W 144623
Q28 TRANSISTOR NPN 2K/REEL 132317 R37 RES MF 221K 1% 1/4W 144629
Q29 TRANSISTOR NPN 132322 R38 RES MF 221 OHM 1% 1/4W 144559
Q30 TRANSISTOR PNP 132321 R39 RES MF 221 OHM 1% 1/4W 144559
Q35 TRANSISTOR NPN 2K/REEL 132317 R40 RES MF 806 OHM 1% 1/4W 144512
Q36 TRANSISTOR N JFET 132318 R41 RES MF 806 OHM 1% 1/4W 144512
Q37 TRANSISTOR PNP 132304 R42 RES MF 22.1K 1% 1/4W 144564
Q38 TRANSISTOR PNP 132304 R43 RES MF 22.1K 1% 1/4W 144564
Q39 TRANSISTOR NPN 132254 R44 RES MET OX 1.8K 5% 1/2W 137100
Q40 TRANSISTOR PNP 120V 132255 R45 RES MET OX 1.8K 5% 1/2W 137100
Q41 TRANSISTOR NPN 132254 R47 RES MET OX 1.8K 5% 1/2W 137100
Q42 TRANSISTOR PNP 120V 132255 R47 RES MF 1.5K 1% 1/4W 144539
Q43 TRANSISTOR NPN 2K/REEL 132317 R48 POT TRIM 500 OHM 20% HORIZ ADJ 134410
Q44 TRANSISTOR PNP 132304 R49 RES MET OX 1.8K 5% 1/2W 137100
Q45 TRANSISTOR NPN 132254 R50 RES MET OX 47 OHM 5% 1/2W 137102
40
MA6300
PARTS LIST cont'd.
HEATSINK PCB 050280 (Cont'd.)
Ref No. Description Part No. Ref No. Description Part No.
R51 RES WW DUAL .47 OHM 5% 5W 139199 C7 CAP ELECT 10UF 50V 066445
R52 RES WW DUAL .47 OHM 5% 5W 139199 C8 CAP ELECT 10UF 50V 066445
R53 RES MF 1K 1% 1/4W 144513 C9 CAP MONO .1UF 50V 20% Z5U 061346
R54 RES MO 4.7 OHM 1W 5% 144464 C10 CAP MONO .1UF 50V 20% Z5U 061346
R55 RES MF 1K 1% 1/4W 144513 C11 CAP DISC MONO .47UF 50V 061320
R56 RES MO 4.7 OHM 1W 5% 144464 C12 CAP DISC MONO .47UF 50V 061320
R57 RES MF 10K 1% 1/4W 144504 C13 CAP MONO .1UF 50V 20% Z5U 061346
R58 RES MF 10K 1% 1/4W 144504 C14 CAP ELECT 100UF 25V 066573
R59 RES MF 40.2K 1% 1/4W 144525 C15 CAP ELECT 100UF 25V 066573
R60 RES MF 267K 1% 1/4W 144532 C16 CAP MONO .1UF 50V 20% Z5U 061346
R61 RES MF 267K 1% 1/4W 144532 D1 LED AMBER 058133
R62 RES MF 499 OHM 1% 1/4W 144510 D2 LED AMBER 058133
R63 RES MF 475 OHM 1% 1/4W 144509 D3 DIODE SILICON 070174
R64 RES MF 499 OHM 1% 1/4W 144510 D4 DIODE SILICON 070174
R65 RES MF 267K 1% 1/4W 144532 D5 DIODE SILICON 070174
R66 RES MF 10K 1% 1/4W 144504 D6 DIODE SILICON 070174
R67 RES MF 681K 1% 1/4W 144643 D7 DIODE SILICON 070174
R68 RES MF 47.5K 1% 1/4W 144526 D8 DIODE SILICON 070174
R69 RES MF 499 OHM 1% 1/4W 144510 D9 DIODE SILICON 070174
R70 RES MF 2.74K 1% 1/4W 144587 D10 DIODE SILICON 070174
R71 RES MF 1.1K 1% 1/4W 144514 D11 DIODE SILICON 070174
R72 RES MF 1K 1% 1/4W 144513 D12 DIODE SILICON 070174
R73 RES MF 2.74K 1% 1/4W 144587 D13 DIODE SILICON 070174
R74 RES MF 475K 1% 1/4W 144604 D14 DIODE SILICON 070174
R75 RES MF 15K 1% 1/4W 144623 DS1 LED GRN 5MM HI-INTENSITY 058165
R76 RES MF 221K 1% 1/4W 144629 (DS1) SPACER LED 112108
R77 RES MF 221 OHM 1% 1/4W 144559 DS2 LED GRN 5MM HI-INTENSITY 058165
R78 RES MF 221 OHM 1% 1/4W 144559 (DS2) SPACER LED 112108
R79 RES MF 806 OHM 1% 1/4W 144512 DS3 LED GRN 5MM HI-INTENSITY 058165
R80 RES MF 806 OHM 1% 1/4W 144512 (DS3) SPACER LED 112108
R81 RES MF 22.1K 1% 1/4W 144564 GROMMET 078031
R82 RES MF 22.1K 1% 1/4W 144564 J1 CONN 23 PIN FFC 117715
R83 RES MET OX 1.8K 5% 1/2W 137100 J2 CONN 12 PIN FFC 117720
R84 RES MET OX 1.8K 5% 1/2W 137100 J3 CONN 12 PIN FFC 117720
R85 RES MET OX 1.8K 5% 1/2W 137100 J4 CONN 12 PIN FFC 117720
R86 RES MF 1.5K 1% 1/4W 144539 J5 "HEADPHONE JACK 1/4""" 117881
R87 POT TRIM 500 OHM 20% HORIZ ADJ 134410 J6 CONN 12 PIN FFC 117720
R88 RES MET OX 1.8K 5% 1/2W 137100 J7 HEADER 2 PIN LATCHING 117766
R89 RES MET OX 47 OHM 5% 1/2W 137102 J8 CONN 12 PIN FFC 117720
R90 RES WW DUAL .47 OHM 5% 5W 139199 J9 CONN 12 PIN FFC 117720
R91 RES WW DUAL .47 OHM 5% 5W 139199 J10 HEADER 2 PIN LATCHING 117766
R92 RES MF 1K 1% 1/4W 144513 MT1 SENSOR IR 38KHZ 121046
R93 RES MO 4.7 OHM 1W 5% 144464 PCB1 PC BD DISPLAY 129605
R94 RES MF 1K 1% 1/4W 144513 Q1 TRANSISTOR NPN SILICON 132317
R95 RES MO 4.7 OHM 1W 5% 144464 Q2 TRANSISTOR PNP SILICON 132304
RT1 THERMISTOR 100 144279 Q3 TRANSISTOR NPN SILICON 132317
(RT1) STANDOFF 6-32 X 1/4 MOUNT PCB 112130 Q4 TRANSISTOR PNP SILICON 132304
RT2 THERMISTOR 100 144279 Q5 TRANSISTOR NPN SILICON 132317
(RT2) STANDOFF 6-32 X 1/4 MOUNT PCB 112130 Q6 TRANSISTOR NPN SILICON 132317
U1 IC DUAL OPERATIONAL AMPLIFIER 133260 Q7 TRANSISTOR NPN SILICON 132317
U2 IC DUAL OPERATIONAL AMPLIFIER 133260 Q8 TRANSISTOR NPN SILICON 132317
Q9 TRANSISTOR NPN SILICON 132317
Q10 TRANSISTOR NPN SILICON 132317
5 DISPLAY PCB 050277 R1 RES MF 1K 1% 1/4W 144513
C1 CAP ELECT 10UF 50V 066445 R2 RES MF 100K 1% 1/4W 144528
C2 CAP MONO 220PF 200V 10% NPO 061342 R3 RES MF 182 OHM 1% 1/4W 144579
C3 CAP MONO .1UF 50V 20% Z5U 061346 R4 RES MF 100 OHM 1% 1/4W 144568
C4 CAP MONO .1UF 50V 20% Z5U 061346 R5 RES MF 182 OHM 1% 1/4W 144579
C5 CAP MONO .1UF 50V 20% Z5U 061346 R6 RES MF 182 OHM 1% 1/4W 144579
C6 CAP ELECT 47UF 16V 066380 R7 RES MF 324 OHM 1% 1/4W 144597
41
MA6300
PARTS LIST cont'd.
DISPLAY PCB 050277 (Cont'd.) 6 PUSHBUTTON PCB 050278
Ref No. Description Part No. Ref No. Description Part No.
R8 RES MF 324 OHM 1% 1/4W 144597 DS1 LED SQUARE RED 058109
R9 RES MF 324 OHM 1% 1/4W 144597 (DS1) LED SPACER .220 LENGTH 163001
R10 RES MF 324 OHM 1% 1/4W 144597 DS2 LED SQUARE RED 058109
R11 RES MF 15K 1% 1/4W 144623 (DS2) LED SPACER .220 LENGTH 163001
R12 RES MF 15K 1% 1/4W 144623 DS3 LED SQUARE RED 058109
R13 RES MF 324 OHM 1% 1/4W 144597 (DS3) LED SPACER .220 LENGTH 163001
R14 RES MF 15K 1% 1/4W 144623 DS4 LED SQUARE RED 058109
R15 RES MF 15K 1% 1/4W 144623 (DS4) LED SPACER .220 LENGTH 163001
R16 RES MF 324 OHM 1% 1/4W 144597 DS5 LED SQUARE RED 058109
R17 RES MF 4.75K 1% 1/4W 144520 (DS5) LED SPACER .220 LENGTH 163001
R18 RES MF 4.75K 1% 1/4W 144520 DS6 LED SQUARE RED 058109
R19 RES MF 221K 1% 1/4W 144629 (DS6) LED SPACER .220 LENGTH 163001
R20 RES MF 221K 1% 1/4W 144629 DS7 LED SQUARE RED 058109
R21 RES MF 8.25K OHM 1% 1/4W 144549 (DS7) LED SPACER .220 LENGTH 163001
R22 RES MF 8.25K OHM 1% 1/4W 144549 DS8 LED SQUARE RED 058109
R23 RES MF 2.21M 1/4W 144576 (DS8) LED SPACER .220 LENGTH 163001
R24 RES MF 2.21M 1/4W 144576 DS9 LED SQUARE RED 058109
R25 RES MF 2.21M 1/4W 144576 (DS9) LED SPACER .220 LENGTH 163001
R26 RES MF 221K 1% 1/4W 144629 DS10 LED SQUARE RED 058109
R27 RES MF 221K 1% 1/4W 144629 (DS10) LED SPACER .220 LENGTH 163001
R28 POT TRIM 100K OHM 20% 134383 TUBING SHRINK 1/4ID BLK 077041
R29 POT TRIM 100K OHM 20% 134383 J1 CONN 12 PIN FFC 117720
R30 RES MF 221 OHM 1% 1/4W 144559 J2 CONN 12 PIN FFC 117720
R31 RES MF 221 OHM 1% 1/4W 144559 PCB1 PC BD PUSHBUTTON 129667
R32 RES MF 2.21M 1/4W 144576 S1 SWITCH TACT 150058
R33 RES MF 1M 1/4W 144577 S2 SWITCH TACT 150058
R34 RES MF 2.21M 1/4W 144576 S3 SWITCH TACT 150058
R35 RES MF 1M 1/4W 144577 S4 SWITCH TACT 150058
R36 RES MF 4.75K 1% 1/4W 144520 S5 SWITCH TACT 150058
R37 RES MF 4.75K 1% 1/4W 144520 S6 SWITCH TACT 150058
R38 POT TRIM 500 OHM 20% HORIZ ADJ 134410 S7 SWITCH TACT 150058
R39 POT TRIM 500 OHM 20% HORIZ ADJ 134410 S8 SWITCH TACT 150058
R40 POT TRIM 500 OHM 20% HORIZ ADJ 134410 S9 SWITCH TACT 150058
R41 POT TRIM 500 OHM 20% HORIZ ADJ 134410 S10 SWITCH TACT 150058
R42 RES MF 100 OHM 1% 1/4W 144568
R43 RES MF 324 OHM 1% 1/4W 144597
U1 IC SHFT REG SER-PAR 133186
U2 IC SHFT REG SER-PAR 133186
U3 IC 8 LN DRIVER ARRAY 133180
U4 IC DUAL OPERATIONAL AMPLIFIER 133260
U5 IC DUAL OPERATIONAL AMPLIFIER 133260
LED SPACER .220 LENGTH 163001
42
MA6300
REPACKING INSTRUCTION
43
INTEGRATED AMPLIFIER
SERVICE MANUAL
SERIAL NO. WR1001 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 041117
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