McIntosh MA6200 Operating and installation instructions

MA62t]0
INTEGFìATED AMPLIFIER
SEFVICE INFOFìMATION
OOOOO ()
llltlnlo.,h MAô?0r rNrhúR^ìrD AMpurrì
\ ¡ uu"
,:a \ l
\ro
o
I'
--
o
o
o
o
a-¡raraa
FoR SEFIAL NUME}ER BX1 OO1 ro BX53O1

úAó200
HUM AND NOISE
Power Amp:
Tape å Aux
DAMP I NG FACTOR
Greater than 30
PERFORMANCE LIMITs
POWER OUTPUT
100 Watts minimum slne wave continuous average
power output, per channel, both channels operat-
ing into 4 ohms, zOHz to 20kHz with no more
than .05% total Harmonic Distortion.
75 Watts minimum sine wave continuous average
power. output, per.channeì, both channels operat-
ing into 8 ohms, zOHz to 20kHz with no more
than .05% total Harmonic Distortion.
OUTPUT LOAD IMPEDANCE
4 ohms, 8 ohms
RATED POWER BAND
zOHz to zokHz
TOTAL HARMONI C D ISTORTION
INPUT SENSITIVITY AND IMPEDANCE
Power Amp:
Tape & Aux:
Phono:
TAPE OUTPUT
2.5 Vol ts
250m Vol ts
2m Vol ts 22,000 ohms
I 00,000 ohms
47,000 ohms, l00pF
rated i nput
rated i nput
*,
Aux. Tape:
Phono: 250mV w 250mV with
¡th
PROGRAM EQUAL I ZER
t I2dB at 30, 150, 500, 1,500, and 10,000 Hz
POWER REQU I REMENT
120 Vol ts, 50/60 Hz, 0.5 to 5 Amperes
MECHANI CAL I NFORMATION
.O5% naximum at any power
to rated power per channe
both channels opèrating. level from 250mW
, 2OHz to 20kHz, SIZE: Front Panel measures l6 inches wide
(40.6 cm) by 5-7.16 inches high (13.8 cm)'
Knob clearance required is l-l/4 inches
(3.2 cn¡ in front of the mounting panel.
WE I GHT: 30 I bs. Net
I NTERMODULAT I ON D I STORT I ON
.O5% naximum at any power ìevel from 250mW to
rated power per channel with both channels
operating for any combination of frequencies
zOHz to 2OkHz.
FREQUENCY RESPONSE
2OHz to 20kHz +0 -0.5d8 at rated power
c
l05dBA, l00dB unweighted, below
rated output
lnput: l00dBA, 95dB unweighted,
below rated output
Phono lnput: B5dBA, SOdB unweighted, below
I OmV i nput.

MAó2OO
PARTS LIST
* Parls marked with an asterisk (i) aÍe replacement parts stock-
ed by our Service Deparlment and must be oidered from
Mclntosh, ïhese parts musl be ordered by part number Parts
not marked may be obtained from eleclronic parts suppliers.
FR0NT PANEL and TRIM
Part
No.
*045770
.045388
*045974
.01 81 60
.01 7230
'017244
.0901 56
.0901 56
.0901 70
.090't71
.0901 86
.0901 B7
.1 04073
.104017
.01 81 55
Symbol
No.
.04341 0
.1 01 054
*100103
* 1 00007
INSTALLATION HARDWARE
Descrlption
Front Panel, Complete
Front Panel, Glass only
Pushbutton bezel, complete w/adhesive
End Cap, secure using 101035 screws
Pushbutton, black
Pushbutton, red
lnput Selector Knob
Mode Selector Knob
Volume Knob
Equalizer Frequency Knobs
Loudness Knob (Front)
Balance Knob (Rear)
Knob felt washer, 5/B dia.
Knob felt washer, 3/4 dia.
Top panel rail, secure using 100007
screws
Bottom panel rail, secure using 100103
screws
Tapping Screws, 6-32x1/4, Phillips,
black
Machine Screw, 6/ 32x1 / B
Tapping Screw, 4-40x5/ 16, Fillister
INTERCONNECTION
Symbol Part
No. No. Description
CAPACIT0RS (CD = Ceramic Disc, MPE = Metalized Polyeste
ELECT = Electrolytic)
C1 066314 ELECT, 12000¡rF, 60VDC
C2 066314 ELECT, 12000pF, 60VDC
C3 064267 lvlPE,0.22p"F, 400V
C4 061175 CD, .005¡rF, + B0 - 20%, 150V,
UL/CSA
C5 061175 CD, .005¡rF, +80 -20%,150U,
U L/CSA
C6 064254 S/N 8X1001 to 8X1435: MPE,0,1¡rF,
10%, 63V (see schematic note
10)....(6200)
C7 0d4254 S/N 8X1001 to 8X1435: MPE, 0.1¡rF,
10%, 63V (see schematic note
10)....(6200)
DI0DES (BRID = Bridge, RECT = Rectifier, SIG = Signal,
Si= Silicon)
'D1 070098 Si, Slc, 175V, 500mW, FDH400
-D2 O7OO92 Si, BRID, RECT, 35A, 2OOV, MDA35O2
LIGHTING DEVICES (lNC = lncandescent)
'DS1 058069 lNC, 6.3V, 200mA, 8610
.DS2 058069 tN
.DS3 058069 tN
.DS4 058069 tN
.DSs 058069 tN
c, 6
c,6
c,6
c,6
Description
Hardware Package
Mounting Strips
Mounting Template
Panloc Shelf Bracket, Right
Panloc Shelf Bracket, Left
Plastic Feet, secure using 101072
Screws
Description
Shipping carton only
Wood Screw, 10x1%, used to mount
bottom shipping pad
Washer, 10x1%, used with 101014
screws for mounting unit for shipping
Shipping carton, Complete (including
mounting hardware)
3V, 200m4, 8610
3V, 200m4, 8610
3V, 200mA, 8610
3V, 200mA, 8610
FUSES AND FUSEH0LDEnS (FA = Fast Acting, SB = Slo-Blo)
.F1 089002 Fuse, FA, 1A, 250V, AcC-1
.F2 089014 S/N 8X1001 to 8X3969: Fuse,, FA, 54,
250V....(6e31)
.F2 089013 S/N 8X3970 and above: Fuse, SB, 44,
125V....(6931)
178114 Fuseholder, UL/CSA-Slot, Littlefuse
341-001
RELAYS
'K1 087019 DPDT, 24VDC
-K2 OB7O3O DPDT, 11OVDC
TRANSIST0RS (Si = Silicon)
*0'l 132188 Si, NPN
.02 132189 Si, PNP
'03 132143 Si, NPN, MPS-D05
.04 132188 Si, NPN
.05 132189 Si, PNP
.06 132143 Si, NPN, MPS-D05
RESISTORS (CF = Carbon Film, POT = Potentiometer)
R1 141072 CF, 10k0, 5%,1/4W
R2 141072 CF, 10k0, 5%,1/4W
.R3 134395 POT, 100kç,, Volume Control
.R4 144012 Thermistor,2.50
.R5 144012 Thermistor,2.50
SWITCHES
*s1 146193
.s2 146196
's3 '153017
.s4 153017
.s5 148043
TRANSFORMERS
*T1 159141
lnput Selector Switch
Mode Selector Switch
Thermal Cut-0ut Switch
Thermal Cut-0ut Switch
Auto-on Switch
Symbol
No.
Symbol
No.
Part
No,
.045142
.04340 1
.0381 79
.043592
.045393
*017218
Part
No.
.033260
.101014
.1 04033
SHIPPING CARTON
.045975 Power Transformer

MISCELLANEOUS
01 501 0
084038
1't7009
117024
. 1 17099
* 117162
170'l 19
PHONO PREAMP
P C B0ARD 045368
Symbol Part
No. No. Description
CAPACITORS (CD = Ceramic Disc, MPE = Metalized Polyester,
ELECT = Electrolytic)
C101 066239 ELECT, 1OpF, 35V
C102 066239 ELECT, 10¡¿F, 35V
C103 061019 CD, 47pF, 20%, 500V, N470
C104 0ô1019 CD, 47pF, 20%, 500V, N470
C105 061022 CD, 100pF, 20%, 1000V, N1500
C106 061022 CD, 100pF, 20%, 1000V, N1500
C107 066318 ELECT, 150¡rF, 10%, 6.3V, TA
C108 066318 ELECT, 150pF, 10%, 6.3V, TA
C'l09 064176 MPE, .015¡r,F, 5%, 63V
C110 064176 MPE, .015¡rF, 5%, 63V
C'l 1 1 064273 M PE, .051¡rF, 5%, 250V
C112 064273 MPE, .051¡rF, 5%,250V
.C113 066173 ELECT, 1O¡rF,35V, NP
'C114 066173 ELECT, 1O¡rF,35V, NP
C115 061043 S/N 8X3792 and above: CD, .01¡rF,
+ 80 - 20%....(7018)
INTEGRATED CIRCUITS (AN = Analog, BP = Bipolar)
.1C101 133067 AN, BP, Operation Amp Low Noise and
THD, NE-55344N
.1C102 133067 AN, BP, Operation Amp Low Noise and
THD, NE-5534AN
RESIST0ßS (CF = Carbon Film, M F = Metal Film)
'R10't 144081 MF, 68.1k0., 1%, 1/4W
.R102 144081 MF, 68.1kO, 1%,1/4W
R103 141049 CF, 1kO, 5%, 1/4W
R104 141049 CF, 1kO, 5%, 1/4W
.R105 144134 MF, 51.1,2%,1/4W
.R106 144134 MF, 51 .1,2%,1/4W
.R107 144083 MF, 5.'t1k0, 2%,1/4W
.R108 144083 MF, 5.11k0, 2%,1/4W
.R109 144138 MF, 64.9kO, 2%,1/4W
.R110 144138 MF, 64.9k0, 2%, 1/4W
R'l11 141033 Ct, 2200., 5%, 1/4W
R112 141033 CF, 2200, 5%, 1/4W
R113 141080 CF, 22kA,5%,1/4W
R1 14 141080 CF, 22Rç't, 5%, 1/ 4W
R115 141100 CF, 150kO, 5%,1/4W
R'l 16 141 100 CF, 150kO, 5%, 1/ 4W
AUTO.ON
PC BoARD 045354
Symbol Part
No. No. Description
CAPACIT0RS (ELECT = Electrolytic, PCF = Polycarbonate Film,
MPE = Metalized Polyester)
.C701 064254 S/N 8X1001 to BX2B40: MPE, 0.1pF,
10%,63V....(6385)
066173 S/N BX2B41 and above; ELECT, 1OpF,
35V, NP....(6385)
C702 064271 PCF, 1000pF, 1000VDC/250VAC
C703 066321 ELECT, 1O¡rF, 160V
DI0DES (Si = Silicon, RECT = Rectif ier)
.D701 070031 Si, RECT, 400 PtV, 1,54
'D702 070031 Si, RECT, 400 PtV, 1.5A
'D703 070031 Si, RECT, 400 PtV, 1,5A
.D704 070059 Si, RECT, B00V
SILICON CONTR()LLED RECTIFIEB
.scR701 131010 SCR, C107M41
RESIST0RS (CF = Carbon Film, WW = Wirewound)
R701 141152 S/N 8X100'l to BX2B40: Ct, 47A,5%,
1 / 4W ... . (6385)
141144 S/N 8X2841 and above: CF,22A,5%,
1 / 4W ... . (6385)
R702 141144 Ct, 22A, 5%, 1 /4W
.R703 139138 WW, 8200, 10%,2W
TONE I LOUDNESS' BALANCE
PC BoARD 045375
Symbol Part
No. No. Description
CAPACIT0RS (MPE = Metalized Polyester, CD = Ceramic Disc,
ELECT = Electrolytic, PF = Polyester Film)
C601 064194 MPE, 0.47pF, s%, 63V
C602 064194 MPE, 0.47pF, 5%, 63V
C603 061023 CD, 100pF, 10%, 500V, N1500
C604 061023 CD, 100pF, 10%, 500V, N1500
C605 064194 MPE, 0.47pF, 5%, 63V
C606 064194 MPE, 0.47¡rF, 5%, 63V
C607 06'1015 CD,22pt,20%, N470
C608 061015 CD,22pF,20%, N470
C609 066239 ELECT, 10¡rF, 35V
C61 0 066239 ELECT, 1 O¡r.F, 35V
Jumper
Strain Relief (Line Cord)
AC Receptacle, Black
AC Receptacle, Green
Headphone Jack, 3/8"
Headphone Jack, 3/8"
Line Cord, 1B ga.
c611 064174
c612 064174
c613 064174
c614 0641 74
c615 066239
c616 066239
c617 064182
c618 064182
.c6't9 066271
.c620 066271
c621 064175
c622 064175
c623 064194
c624 064194
c625 064167
MPE, .01¡rF, 5%
MPE, .01pF, 5%
MPE, .01¡rF, 5%
MPE,.01¡rF,5%
ELECT, 1O¡rF,35V
ELECT, 1 O¡rF, 35V
MPE, .047¡rF, 5%, 63V
MPE, .047pF, 5%, 63V
ELECT, 1.SpF, 50V
ELECT, 1.5¡rF,50V
MPE, .01Zp,t, 5%, 63V
MPE, .012p"F,5%,63Y
MPE, 0.47pF, 5%, 63V
MPE, 0.47pF, 5%, 63V
PF, .0033pF, 5%, 100V
63V
63V
63V
63V

I
il
i
I
C626 064167 Pt,,0033¡¿F, 5%, 100V
C627 064188 MPE, 0.1SpF, 5%, 63V
C628 064188 MPE, 0.15¡¿F, 5%, 63V
C629 064161 PF, .001¡r.F, 5%, 100V
C630 064161 PF, .001¡rF, 5%, 100V
C631 064180 MPE, .033pF, 5%, 63V
C632 064180 MPE, .033¡rF, 5%, 63V
CE33 061023 CD, 100pF, 10%, 500V, N1s00
C634 061023 CD, 100pF, 10%, 500V, N1500
C635 064190 MPE, 0.22p"F,5%, 63V
C636 064190 MPE, 0.22p"F, 5%, 63V
C637 066240 ELECT, 22p.t,25V
C638 066240 ELECT, 22p"F,25V
C639 064190 MPE, 0.22¡t"F,5%, 63V
C640 064190 MPE, 0.22p,F,5%, 63V
C641 061128 CD, 470pF, 10%, 500V, ZsF
C642 061128 CD, 470pF, 1.0%, 500V, Z5F
C643 061015 CD, 22pt,20%, N470
C644 061015 CD, 22pF,20%, N470
C645 061023 CD, 100pF, 10%, 500V, N1500
C646 061023 CD, 100pF, 10%, 500V, N1500
.C647 066173 ELECT, 1O¡rF, 35V, NP
.C648 066173 ELECT, 10pF, 35V, NP
C649 066226 S/N 8X1001 to 8X3223: ELECT, 'l00pF,
16V...,(6648)
066312 S/N 8X3224 and above: ELECT, 100¡rF,
35V....(6648)
C650 066226 S/N 8X1001 to 8X3223: ELECT, 100pF,
16V....(6648)
066312 S/N 8X3224 and above: ELECT, 100pF,
35V....(6648)
INTEGRATED C¡RCUITS (AN = Anaiog, BP = Bipolar)
.1C601 133066 AN, BP, Operation Amp., NE-5534N
.1C602 133066 AN, BP, Operation Amp., NE-5534N
'1C603 133028 AN, BP, Dual Hi-speed Operation Amp,,
MC-4558P
.1C604 133028 AN, BP, Dual Hi-speed 0peration Amp.,
MC-4558P
.1C605 133028 AN, BP, Dual Hi-speed 0peration Amp.,
MC-4558P
.1C606 133028 AN, BP, Dual Hi-speed Operation Amp.,
MC.4558P
.1C607 133028 AN, BP, Dual Hi-speed 0peration Amp.,
M C-4558P
.1C608 1330ô6 AN, BP, Operation Amp., NE-5534N
'1C609 133066 AN, BP, 0peration Amp., NE-5534N
RESIST()RS (POT = Potentiometer, CF = Carbon Film,
MF = Metat Film)
.R601 /607
134382 POT, Dual 50k0/100k0,
R61 4
R61 5
R61 6
.R61 7
-R618
.R61 I
. R620
R621
R622
R623
R624
R625
R626
R627
Rô28
R629
R630
R631
R632
R633
R634
R635
R636
R637
R63B
R639
R640
R641
R642
R643
R644
R645
R646
R647
R648
R649
R650
R651
R652
R653
R654
R655
R656
R657
R658
R659
R660
1 41 096
141120
141120
1 44083
1 44083
144123
144123
1 41 088
1 41 0BB
1 41 068
1 41 068
1 41 068
1 41 068
141045
141045
'141096
141096
141045
141045
1 41 096
141096
141045
141045
141096
1 41 096
14't045
1 41 045
1 41 096
1 41 096
1 41 045
1 41 045
141096
141096
141087
141087
1 41 096
1 41 096
141160
141160
1 41 082
141082
141033
141033
141152
141152
1 41 060
1 41 060
cF, 100k0, 5%,1/4w
cF, 1MO, 5%,1/4W
cF, 1MO, 5%,1/4W
MF, 5.11RA, 2%, 1/4W
MF, 5.11kA, 2%, 1/4W
MF, 511,2%,1/4W
MF, 511,2%,1/4W
cF, 47k0, 5%, 1/4W
cF, 47k0, 5%, 1/4W
cF, 6.8k0, 5%, 1/4W
cF, 6.8k0, 5%,1/4W
cF, 6.8k0, 5%,1/4W
cF, 6.8k0, 5%, 1/4W
cF, 6800, 5%,1/4W
cF, 6800, 5%,1/4W
cF, 100k0, 5%, 1/4w
cF, 100k0, 5%,1/4w
cF, 6800, 5%,1/4W
cF, 6800, 5%, 1/4W
cF, 100k0, 5%,1/4w
cF, 100kfl, 5%,1/4w
cF, 6800, 5%, 1/4W
cF, 6800, 5%,1/4W
cF, 100kf,, 5%,1/4w
cF, 100k0, 5%,1/4w
cF, 6800, 5%, 1/4W
cF, 6800, 5%, 1/4W
cF, 100k0, 5%,1/4w
cF, 100k0, 5%,1/4w
cF, 6800, 5%,1/4W
cF, 6800, 5%,1/4W
cF, 100ko, 5%,1/4w
cF, 100k0, 5%,1/4w
cF, 43kO, 5%, 1/4W
cF, 43k0, 5%,1/4W
cF, 100k0, 5%,1/4w
cF, 100k0, 5%, 1/4w
cF, 3ko, 5%,1/4W
cF, 3k0, 5%, 1/4W
cF,27kA,5%,1/4W
cF, 27k0, 5%, 1/4W
cF,2200,5%,1/4W
cF, 220[¡, 5%, 1/4W
cF, 470, 5%,1/4W
cF , 47rJ, 5%, 1/4W
CF, 3.3k0, 5Yo, 1/4W
cF, 3.3k0, 5%,1/4W
'R
*R
*R
Balance/ Loudness
POT, 100k0/100k0,
PoT, 100ko/100kç,,
POT, 'l00ko/100k0,
PoT, 100k0/100k0,
POT, 100ko/100ko,
602 134316
603 134316
604 134316
605 134316
606 134316
Equalizer
Equalizer
Equalizer
Equalizer
Equalizer
*R
*R
P0T, Dual 50ko/100k0,
Balance/ Loud ness
(not used)
cF, 200k0, 5%,1/4w
cF,220kçì,5%,1/4W
cF, 1k0, 5%,1/4W
cF, 1ko, 5%,1/4W
cF, 100k0, 5%,1/4w
PUSHBUTTON
Pc B0ARD 045447
Symbol Part
No. No. Description
RESIST0RS (WW = Wirewound)
.R901 139123 WW, 3300, 5%,2W
.R902 139123 WW, 3300, 5%,2W
.R903 139123 WW, 3300, 5%, 2W
.R904 139123 WW, 3300, 5%,2W
SWITCHES
.5901 150030 Pushbutton Switch (8)
. R607/601
1 34382
R608
R609
R61 0
R61 1
R61 2
R61 3
141 1 04
141104
1 41 049
'141049
1 41 096

LEFT & RIGHT DRIUER
PC BoARD 045398
Symbol Part
No. No. Description
CAPACIT0RS (CD = Ceramic Disc, ELECT = Electrolytic,
MPE = Metalized Polyester)
CB01 066239 ELECT, 10¡rF, 35V
C802 066239 ELECT, 10pF, 35V
CB03 066239 ELECT, 1O¡rF, 35V
CB04 066239 ELECT, 10¡rF, 35V
CB05 061 'l 1 2 CD, 1BpF, 10%, 500V, NPO
CB06 061'112 CD, 18pF, 10%,500V, NPO
C807 061016 CD, 33pF, 10%, 500V, NPO
C80B 061016 CD, 33pF, 10%, 500V, NP0
C809 066226 ELECT, 100pF, 16V
CB10 066226 ELECT, 100¡rF, 16V
C81 1 061055 CD, 47pF, 10%, 500V, N470
CD, 47pF, 10%, 500V, N470
ELECT, 47¡rF, 80VDC
ELECT, 47¡rF, 80VDC
ELECT, 47p"t,50Y
ELECT, 47 p.F , 50V
'0805 070047 Si, SlG, 75V, 10m4, 1N4148
.D806 070047 S¡, SlG, 75V, 1OmA, 1N4148
.D807 070047 Si, SlG, 75V, 10m4, 1N4148
.D808 070047 Si, SlG, 75V, 10m4, 1N4148
.D809 070098 Si, SlG, 175V, 500mW, FDH400
-D810 070098 Si, SlG, 175V, 500mW, FDH400
.08'11 070031 Si, RECT,400 PlV, 1.54
.D812 070031 Si, RECT, 400 PlV, 1.54
.D813 070031 Si, RECT, 400 PlV, 1.54
.0814 070031 Si, RECT, 400 PlV, 1.54
'D815 070047 'S/N 8X1436 and above: Si, SlG, 75V,
10mA, 1N4148,..,(6356)
'D816 070047 S/N 8X1436 and above: Si, SlG, 75V,
10m4, lN4'148....(6356)
.0817 070047 S/N 8X1436 and above: Sl, SlG, 75V,
1OmA, 1N4148....(6356)
.D818 070047 S/N 8X1436 and above: Si, SlG, 75V,
10m4, 1N4148....(6356)
CHOKES
.1801 122188 S/N 8X1001 to 8X3195: Choke,
1.7mH,...(6643)
122203 S/N 8X3196 and above: Choke,
1 .2mH, ... (6643)
'L802 122188 S/N 8X1001 to 8X3195: Choke,
1 .7mH. .. . (6643)
122203 S/N 8X3196 and above: Choke,
1.2mH....(6643)
LIGHT DEPENDENT RESIST()RS
.LDRBo1 144070 LDR, CLM6000
.LDR802 144070 LDR, CLM6000
TRANSIST0RS (DAR = Darlington, Si = Silicon)
.0801 132185 Si, NPN, Selected 2N64294
.0802 132185 Si, NPN, Selected 2N64294
.0803 132185 S¡, NPN, Selected 2N64294
'0804 132185 Si, NPN, Selected 2N64294
.0805 132096 Si, PNP, BC-416C
.0806 132096 Si, PNP, BC-416C
.0807 132096 Si, PNP, BC-416C
.0808 132096 Si, PNP, BC-416C
.0809 132187 Si, PNP, Selected MPS-U57
.0810 132187 S¡, PNP, Selected MPS-U57
.0811 132150 Si, PNP, MPS-055
.08't2 132150 Si, PNP, MPS-D55
.0813 132143 Si, NPN, MPS-005
.0814 132143 Si, NPN, MPS-005
.08't5 132143 Si, NPN, MPS-D05
.08'16 132143 Si, NPN, MPS-D05
.08'17 132150 Si, PNP, MPS-055
-0818 132'150 Si, PNP, MPS-055
.08't9 132092 Si, NPN, BC-238C
.0820 132092 Si, NPN, BC-238C
.0821 132184 Si, PNP, Selected FT4'l7A
.0822 132184 Si, PNP, Selected FT417A
.0823 132183 Si, NPN, Selected FT317A
.0824 132'lB3 Si, NPN, Selected FT317A
'0825 132182 Si, PNP, DAR, MPS-A64
.0826 142182 Si, PNP, DAR, MPS-A64
INTEGRATED CIRCUITS (AN = Analog, BP = Bipolar)
*1C80'l 133068 AN, BP, 0peration Amp, LM201AN
*lCBO2 133068 AN, BP, Operation Amp, LM201AN
RESIST0RS (CF = Carbon Film, MF = Metal Film,
POT = Potentiometer, WW = Wirewound,
Fp = Flameproof )
RB01 141080 CF, 22kA, 5%, 1/4W
R802 141080 CF, 22kA, 5%, 1/4W
c812
cB1 3
c81 4
CB1 5
c81 6
.c81 7
.CB1 B
c81 I
061 055
0663 1 3
06631 3
066278
066278
061002 cD,
061002 cD,
061024 CD,
1.8pF,
1.8pF,
1 50pF,
1 50pF,
1 50pF,
1 50pF,
+.25pF, NP0
+.25pF; NP0
10%, 500v, zsF
10%,500v, z5F
10%,500v, zsF
10%, 500v, zsF
c820 061024 CD,
c821 061024 CD,
cB22 061024 CD,
CB23 066221 ELECT, 'lOpF, 50V
C824 066221 ELECT, 10¡rF, 50V
C825 064250 MPE, .047p.F,10%, 63V
C826 064250 MPE, .047p.F, 10%, 63V
C827 061027 CD, 220pF,10%, 500V, ZsF
C82B 061027 CD, 220pF, 10%, 500V, ZsF
C829 064254 MPE, 0.1¡rF, 10%, 63V
C830 064254 MPE,0.1¡rF, 10%,63V
CB31 061027 CD, 220pF, 10%, 500V, ZsF
C832 061027 CD, 220pF, '10%, 500V, ZsF
CB33 064254 MPE, 0.1¡rF, 10%, 63V
C834 064254 MPE,0.1pF, 10%,63V
C835 064254 S/N 8X1436 and above: MPE, 0.1¡rF,
10%, 63V (see schematic note
10)..,.(6200)
C836 064254 S/N 8X1436 and above: MPE, 0.1¡rF,
10%, 63V (see schematic note
1 0). . .. (6200)
CB37 061035 S/N BX15B2 and above: CD, .001¡rF,
20%, 500v, 25u....(6434)
C83B 061035 S/N BX15B2 and above: CD, .001¡rF,
20%, 500v, 25u.,..(6434)
C839 061035 S/N 8X1582 and above: CD, .001¡rF,
20%, 500v, 25u....(6434)
CB40 06'1035 S/N 8X1582 and above: CD, .001¡rF,
2o%, 5oov, 25u....(6434)
DI0DES (SlG = Signal, Si = Silicon, RECT = Rectifier)
.D801 070047 Si, SlG,75V, 10mA, 1N4148
'D802 070047 Si, SlG, 75V, 10m4, lN414B
'D803 070047 Si, SlG, 75V, 10m4, 1N4148
*0804 070047 Si, SlG, 75V, 10m4, 1N4148

MAó2OO
RBOS
R804
R805
R806
R807
R808
R809
R81 0
R81.1
RB1 2
R81 3
R81 4
*R8'15
*RB1 6
RB1 7
RB1 8
R81 I
RB2O
RB2 1
RB22
R823
RB24
R825
RB26
RB27
R828
R829
R830
R83 1
R832
R833
141062
141062
1 41 066
1 41 066
141106
141 106
141062
1 41 062
1 41 086
1 41 086
141086
1 41 086
1 44091
14409'l
141142
141142
141183
141183
141123
141123
141183
141183
141066
't 41 066
1 41 066
1 41 066
't 41 053
1 41 053
1 41 053
1 41 053
1 41 090
1 41 090
1 41 090
141090
144143
144143
144145
144145
144145
144145
141066
141066
1 391 05
cF, 1.8
cF, 1.8
ct, 2.2
cF, 2.2
cF,5.6
cF,5.6
FP
FP
FP
FP
FP
FP
CF
R834
RB35
R836
- RB37
- R83B
* R839
cF, 3.9k0, 5%, 1/4W
cF, 3,9k0, 5%,1/4W
cF, 5,6k0, 5%, 1t4W
cF, 5,6k0, 5%, 1/4W
CF, 270k0, 5%0,1/4W
cF, 270k0, 5%,1/4W
cF, 3.9kO, 5%,1/4W
cF, 3.9kO, 5%, 1/4W
cF, 39k0, 5%, 1/4W
cF, 39k0, 5%, 1/4W
MO, 5%
Mç,, 5%
kç¡,5%,
kQ, 59/0,
ko,5%,
kn,5%,
1|4W
1/4W
,1/4W
,1/4W
/4W
/4W
1/2W
1/2W
,1/4W
,1/4W
1/2W
1/2W
1 /4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4Vt
1/4W
cF, 39kO, 5%,
cF, 39kO, 5%,
MF, 1.'tk0, 1%
MF, 't.1ka, 1%
cF, 180, 5%, 1
cF, 1BO, 5%, 1
cF, 2..2kA, 5%,
cF, 2.zk0,, 5%,
cF 1.5k0 5%
cF 1.5k0 5%
cF 56k0, 5%,
cF 56k0, 5%,
cF 56k0, 5%,
cF 5.6k0 5%
cF 5.6k0 5%
cF, 1 skO 5%
cF, 1 5k0 5%
cF, 56k0, 5%, 1/4W
CF,
18A,5%, 1/4W
18A,5%,1/4W
1ka,5%,1/4W
1k{t,5%,1/4W
1ko,5%, 1/4W...,(689
1k0,5%, 1/4W....(689
5.6k0, 5%,1/4W
5.6k0, 5%,1/4W
S/N 8X1001 to 8X2840: WW, 0.15C,,
5%,5W.,..(6374)
S/N BX2B41 and above: WW, 0.150,
5%, 5W, Noninductive....(63i4)
S/N 8X1001 to 8X2840: WW, 0.150,
5%,5W.,..(6374)
S/N 8X2841 and above: WW, 0.15ç¿,
5%, 5W, Noninductive....(6374)
S/N 8X1001 to BX2B40: WW, 0.150,
5%,5W....(63i4)
S/N 8X2841 and above: WW, 0.150,
5%, 5W, Noninductive,.,.(6374)
S/N 8X1001 to 8X2840: WW, 0.150,
5%,5W...,(63i4)
S/N BX2B41 and above: WW, 0.150,
5%, 5W, Noninductive....(6374)
ww, 100, 10%,2w
ww, 100, 10%,2w
POT, 1000, 20%,1/4W
POT, 1000, 20%,1/4W
FP, 1500, 5%, 1/4W
tP, 1500, 5%,1/4W
FP, 4700, 5%, 1/4W
FP, 4700, 5%, 1/4W
RB57
RB58
* RB59
'R960
R861
RB62
R863
R864
- R865
* R866
141106
141't06
1 44066
1 44066
141106
141106
1 41 055
141055
1 44053
144053
CF, 270k0, 5%, 1/4V'l
ct,270RA,5%, 1/4W
FP, 220, 10%,.1/2W
FP,22rJ,10%,1/2W
cF, 270k0, 5%,1/4W
cF, 270k0, 5%, 1/4W
cF, 1.8kO, 5%,1/4W
cF, 1 .8k0, 5%, 1/ 4W
MF, 10k0, 1%,1/4W
MF, 10k0, 1%,1/4W
POWER SUPPLY
PC BoARD 045369
Symbol Part
No. No. Description
CAPACITORS (CD = Ceramic Disc, ELECT = Etectrolytic)
C201 066274 ELECT, 47p,F,35V
C202 061043 S/N 8X1001 to 8X2840: CD, .01pF,
+ 80 - 20%.... (6354)
061048 S/N 8X2841 and above: CD, .05¡rF,
+80 -20%, 100v, 25v....(6354)
C203 066247 ELECT, 2200p"F,16Y
C204 066247 ELECT, 2200p"F,16Y
C205 066274 ELECT, 2200pF, 16V
C206 061043 S/N 8X1001 to BX2B40: CD, .01pF,
+ B0 - 20%.,..(6354)
061048 S/N BX2B41 and above: CD, .OS¡rF,
+ B0 - 20%, 100v, 25v....(6354)
C207 066236 ELECT, 470p"F,6.3V
C20B 066274 ELECT, 47p"F,35V
FUSES
.F201 174188 #30 Solid Copper Wire, (Fusibte Link)
0l0DES (RECT = Rectifier, Si = Silicon, ZN = Zener)
'D201 070031 si, RECT, 400 PtV, 1.5A
.D202 070031 Si, RECT, 400 PtV, 1.5A
'D203 070103 Si, ZN, 18V, S%, 500mW, |NS248B
.0204 070103 Si, ZN, 18V, S%, 500mW, |NS248B
.0205 070085 Si, ZN, 6.2V, 5%, 500mW, tNS234B
TRANSIST0RS (Si = Silicon)
.0201 132173 S¡, PNP, Setected MJE29S5
'Q202 132174 Si, NPN, Setected MJE3055
.0203 132143 Si, NPN, MPS-D05
.Q204 132147 Si, PNP, MPS-Ag3
.0205 132143 Si, NPN, MPS-005
.Q206 132185 Si, NPN, Setected 2N6429A
,Q207 132143 Si, NPN, MPS-DOs
.0208 132143 Si, NPN, MPS-005
.0209 132143 Si, NPN, MPS-D05
.0210 132143 S¡, NPN, MPS-005
RESIST0RS (CF = Carbon Film, WW = Wirewound,
Fp = Flameproof )
*R201 139157 WW, FP, 1800, 10%,2W...
R202 141068 CF, 6.80, 5%, 1/4W
R203 141072 CF, 10k0, 5%,1/4w
R204 141072 CF, 10k0, 5%,1/4w
R205 't41059 CF, 2.7k0, 5%, 1/4W
R206 141068 CF, 6.8k0, 5%,1/4W
.R207 139157 WW, FP, 1800, 10%,2W...
R208 141082 CF, 27kA, 5%, 1/4W
( 7056)
/4W
/4W
/4W
.R840
*R841
. R842
R843
R844
'R845
7)
7\
1 391 25
.R846 139't05
139125
.R847 139105
1 391 25
.RB4B 139105
1 391 25
1 391 31
139131
1 34359
1 34359
1 441 47
1 441 47
144144
144144
. Rg49
- RB50
.R851
'Rg52
. Rg53
.R854
*R855
. Rg56 (70s6)

MAó2OO
R209 141041
R?J
R21
R21
R21
R21
R21
R21
R21
'R21
R21
R22
0 141031
1 141031
2 141031
3 141045
4 141045
5 141045
6 141025
7 141025
B 141045
I 141045
0 141045
. c302
*c303
*c304
'c305
.c306
066302
066302
066302
066302
066302
ELECT,
ELECT,
ELECT,
ELECT,
ELECT,
cF, 4700,
cF, 1800,
cF, 1800,
cF, 1800,
cF, 6800,
cF, 6800,
cF, 6800,
cF,1000,
cF, 1000,
cF,6800,
cF, 6800,
cF, 6800,
1/4W
1/ 4W
1/4W
1/4W
1/ 4W
1/ 4W
1/ 4W
1/ 4W
1/4W
1/4W
1/4W
1/ 4W
5%,
5%,
5o/0,
5%,
5%,
5%,
5%,
5%,
5%,
5%,
5%,
5%,
LEFT & RIGHT TERMINAL
PC BoARDS 045373
Symbol Part
No. No. Description
CAPACIT0RS (ELECT = Electrolytic)
.C301 066302 ELECT, 2.2¡f , 25V
..)
NP
NP
NP
NP
NP
NP
2 2p.F 25V
2 2p.F 25Y
2 2p"t 25V
2 2p.t 25V
2 2p"F 25V
POWER GUARD LAMP
PC BoARD 045372
Symbol Part
No. No. Description
LAMPS AND LIGHTING DEVICES (lNC = lncandescent)
.DS501 058061 lNC, 14V, 80m4, 7382
.05502 058061 lNC, 14V, B0mA, 7382
'DS503 058061 lNC, 14V, BOmA, 7382
.05504 058061 lNC, 14V, 80mA, 7382
INDICATOR
PC BoARD 04537r
Symbol Part
No. No. Doscription
LAMPS AND LIGHTING DEVICES (LEE = Light Emitting Diode)
.DS401 070093 LED, Red, HP5082-4658
'0S402 070093 LED, Red, HP5082-4658
'DS403 070093 LED, Red, HP50B2-4658
'05404 070093 LED, Red, HP5082-4658
.05405 070093 LED, Red, HP5082-4658
.0S406 070093 LED, Red, HP50B2-4658
.DS407 070093 LED, Red, HP5082-4658
.DS408 070093 LED, Red, HP5082-4658
RESIST0RS (CF = Carbon
R301 141045 CF,
R302 141045 CF,
R303 141'104 CF,
R304 141 104 CF,
R305 141045 CF,
R306 141045 CF,
R307 '141'104 CF,
R30B 141 104 CF,
R309 141045 CF,
R310 141045 CF,
R31 1 141 104 CF,
R312 141104 CF,
Film)
6800, 5%, 1/4W
6800, 5%, 1/4W
220kçt,5%, 1/4W
220k0, 5%,1/4W
6800, 5%, 1/4W
680f,, 5%, 1/4W
220RlJ,5%,1/4V'l
220RA,5%,1/4W
6800, s%, 1/4W
6800, 5%, 1/4W
220ka,5%,1/4W
220ka,5%,1/4W
0
The.continuous im.prov_ement of ¡ts products is the po_licy of Mclntosh Laboratory lncorporated, who reserve the right to improve
design without notice. Because of the constant upgrading of Mclntosh products'circuitry and corhpoñents, the Comoãnv canriot in-
sure, and does not warranl, the accuracy of the within schematic material, which is iniended for informátion only.
MclnÈosh LaboratoFy lnc. 2 Charnbers Eitneet, Elingharnton, NY 139Ct3-999Ct
Printed in u.S.A. Telephone [phone] Part No. 099387
J

FI
oþ
IruI
MAó2OO
-. POs[tVE
elourPUf
NgCATIVE
OUIPUT
DC
8ta8
06
NOTE IO
rcfEto
ÌURNTAELE
LEñ
HEÐPHOM I
NIGHT
HEADPTIOE I
ü
Ð
LEFI
HErcPflONE
R lo¡lT
SEAKEF
LEFT
SAKER
HEADPHOT.IE
c6
Itoov
PUSHBUTTON SWITCH
o45-447
m stntEs SYraoL rc¡g
LEFl
gP€AXER IilPUT
INPUT
SPEAKER
3
SPEAKER
2
SPEAKER
I
LEf
SPEAXER
RIOHf
SPEAKEi
YEL
XI
F
9ts9 I
çË¡ FI
RELAY 08 VE
-o
I POWERI
UO
s$t^
AWO
3s-ö
ruLo
TI
l4Âl
AUTO-ON
045-354
7oo sERtEs sYta[ rc's
POWER ON/OFF RELAY
TU8{IA8LE
POWEN I
AUIO/MNIJÂL
oN/0fF
M)fE 9
X-r
$
o
8r
.iõ
oz
L
INTERCONNECT
RED
t€fE 9
JL swrrcxso ourrets J L ruftrorLE I
MLEIS .ooð
l20v
50160 H¡
,ü

t8v
a8v DRIVER
045 RIGFN
-398
DRIVER LEF'I
o45-398
800 sEñEs SYXn
-l8v
iã ?õ
8OO SERIES SYÍ4 ¡
POWER SU
045-31
æ sRtEs sYr
3
rfiE
ôlô
dD
NOTE II
t
"1 2
EI
,I 5
L¡
2'
iqE
Itv
08
4
7
045-375
600 sERtEs sYxæL rc's
LEFl
I'AIN INPUT
LEFT OilD
0No
oÈ FROW
.JUMPER
ôv
tEv
ñ
F
=
'm
--!sò
RE8
!¿
o45-3gB
lx tæ $RtEs s'tx¡ol torr
r3 13
3Í 5Í
PHONO PREAMP
POWER GUARD I.AMP
o45-372
õoo sERtEs sYtBoL rc's
Ä:t \åc f
F
IF
ü
Ls vE
I
qE
0No
Á:t vac
0l¿

PH 2
PHI
AUX
AUX I
fAP€ I IX
ÍAPE 2
TAPE 2 I
IAPE 2
TÂPE I
IAPE 2
t_,
TAPE 2
IAPE ¡
gECtrON I
FROflI
sEct¡ol ¿
¡RfrI
J
¿
2
ca
(
ü
0rc -,- NOTE II
J
¿
n
u
?H2
AUX I
LEFT INPUT
045-373
loo sEñtE8 SYI8oL M)5
sEilf¡r r
INDICATOR
o45-371
400 SER|ES tpOL ttds
SUP[Y
l-2
2-t
z
F
¡
I
È
PUSHBUTTOT,¡ SWITCH
o45-447
tÈ 9OO SER|S SYl¡8e rc,S
cflo
OUT
OT
u0
ts
¡
RIGHf
ÌAPE I II
rcX TOR
LEO
NOB TOR
LÊO
æPY
LEO 2+COPY
LED
SPEAffiñ
LED
f.Ë8*.t
SPEAXER
LEO
LÉD
LEFT
LEFT
LSt
8t0Hf
RlGSt
tæT
20w
2 tN
RIGHT INPUT
045-373
lOO SERIES SYTæL rcIs
ot0

II
u ttt
z. l-
=¿
i=_
5L
LE
AUX I
AUX 2
TUN ER
PHI
PH2
GAIN=42d B
GAIN=42 dB
TAPE I
TAPE 2
TAPE I
TAPE 2
rE
l=
dr
=l
=l I
ü?
Þ=
Gù
=2.
tL
TAPE 2
TAPE I
TAPE 2
TAPE I
PH2
PHI
TUNER
AUX 2
AUX I
48V v
AC LINE
e
o-
F(J
UF
==
Uu^ SUPER
TRACKING
VOLUME
CONTROL
HIGH TEVEL
OP AMP
PHONO AMP
FEEDBACK
EOUALIZATION NETW
MODE
tTc
FEEDBACK
EQUALIZATION NETW
U
!
LJ
=
=
L
o
U
ô
z.
É,
o
=
z.
o
=
u
è
F
SU PER
TRACKING
VOLUME
CONTROL
PHONO AMP HIGH LEVEL
OP AMP
=
e.
O-
L: t-
==
u r/t
SWITCH
MANUAL
TURNTABLE
OUTLETS
48V
POWER SUPPLY l8v
POWER SUPPLY
IN RUSH
CUR R ENT
LIMITER
AUTO
TURN ON
CIRCUIT
&
RELAY
POWER
TRANSFORMER
-48V
POWER SUPPLY -l8v
POWER SUPPLY
POWER
SWITCH
GAIN=20d B
LOUDNESS COMP
FEEDBACK
VARIABLE
LOUDNESS COMP
FEEDBACK
GAIN=20d8
-48V -t8v

GAIN=0dB
PROGRAM EOUALIZER
FEEDBACK
SUBSONIC FITTER
FEEDBACK FEEDBACK
CURRENT
M IRROR
FITTER
OP AMP DIFFERENTIA
AMP PRE-DRIVER
POWER
GUARD
ELECTRON IC
ATTENUATOR
R
GUARD POWER GUARD LAMP
SEQUENCER
ELECTRON IC
ATTENUATOR POWER
GUARD
AMP INPUT
AMP INPUT
PREAMP
OUTPUT
PREAMP
OUTPUT
BALANCE
CONTROL
CURRENT
MIRROR
FILTER
OP AMP I FFERE
AMP PRE-DRIVER
SUBSONIC FILTER
FEEDBACK FEEDBACK
PROGRAM EQUALIZER
FEEDBACK
J
c
GAIN=0d B
J

MAó2OO
SPEAKER I
SPEAKER 2
SPEAKER 3
HEADPHONE
HEADPHONE
PROTECTOR
RE[AY
POWER
CONTROLLER CLASS AB
OUTPUT.
SENTRY MONITOR
CURRENT LIMITER
THERMAL
swrTcH
TURN ON.
DELAY AND
SPEAKER
PROTECTION
SENTRY MONITOR
CURRENT IIMITER
SPEAKER
SWITCHING
POWER
CONTROLLER CLASS AB
OUTPUT
PROTECTOR
RELAY
BLOCK DIAGRAM

MAó2OO
SCHEMATIC NOTES
l. Prínted circuít board assemblies are outlined on the schematics by dotted lines. The circled
numbers on the dotted I ines correspond to the numbers on the pr¡nted circuit board layouts.
2. The heavy I ines on the schematics denote ,the primary signal path.
3, The terminal numbering of rotary switches is for reference only.
4. A dot on the rotor of a rotary switch indicates that there is an electrical connection between
the front and rear rotor section.
5. Unless otherw¡se specifled: Resistance values are in ohms, l/4 watt, and 5% tolerance.
' Capacitance_values smal ler than I are in microfarads (pF); capac.itance values greater than I
are in picofarads (pF);
6. All voltages indicated on the schematics are measured under the following conditions:
Use of an ll megohm input impedance VTVM. All voltages t l0% with respect to ground,
No signal at input terminals. AC input at 120 volts, 50/60 Hz.
Voltages not specif ied are rr0rr v,ol ts.
7 , Front panel control s at:
Mode Se I ector S tereo Loudness ccw
Speaker switches Out Tape Mo_nitors Out
Volume control Min Tape l----+ 2 Out
Balance control Middle Tape 2-----> l Out
Tone control s Flat
I nput selector Phono 2
ITo ad
signa
.3A).
I ì. s/N BXl00l to 8X2990:
pushbutton swi tch
just output stage bias, operate the ltlA6200 at 120 volts line input with no input
l. Measure the AC line input_power (gpproxlmately 40 watts) or current (approximately
The bias potentiometers R85l and R852 are locatðd on the þower output pC boards,
. Turn both b iaå potentiometèrs ful I couhterclockwi se.
. Rotate bias adjustment clockwise to the point where the I ine input power or current
begins to increase, then back off sl ightly to the point where the I ine input just
reaches i ts lowest value.
a
b
9
S/N
10.
c. Repeat step b. for other channel independentl y.
S/N BXl00l to BXl234: 0n the lnterconnect Schematic, Fl and F2 were wired in the circuit
as shown by dotted lines.
BXl00l to BXI\352 C6 and C7 were part of the lnterconnect circuit. Above S/N BXl435,
C6 was mounted on the rìght driver PC board as C836, and C7 was mounted on the left-'
driver PC board as C835. The driver PC board assembly number without C835 and C836
is 045219.
0n
PC the lnterconnect schematic, there is no connection between
board 045260, pin 42, and Power Supply PC board pin 14.

MAó2OO
ÍUNER IN
AUI 2
IN
J
LEFT INPUT TERMINAL PC BOARD
045-373
R¡GHT INPUT TERMINAL PC BOARD
045-373 c
R30
R!6
TUNER æT
lux I
ouT
TUNER IN c!o2
2,¿tF
ilP
TUNER OUI
680
R504
AUX
OUT
AUX
tx
AUX
IN
aux 2
0ur
AUX
lx
AUX 2
ouf
Z,2tF
220 X
220 N
LEFT INPUT TERMINAL
045 -õ73
220 N
RIGHT INPUT TERMINAL
o45 -573
L__J I
L__l
¿
-
680
R5tI
680
R308
INPUT

llAó200
LEFI PHONO IN
LE¡f HONO GNO
itql PHoNo
PHONO PREAMP PC BOARD
045-368
ìr
le
- tav
PHONO PREAMP
045-568
tcv
FNOT INPUT
8€LECTOR
SWtfcx
FNOT ITPUT
SLECTOR
swtTcH
PffiOÚ
TO INPUT SLECTOR SWITCTI
PffiOM
Ftø
I
r5
l!r
'F¿
l--5
l=t
rs¿
R IAA
tc þt
:f
ñd
otú
ilP
220
RIAÂ
tctoz
ATP
otó
R08 .øt
^F!.ro^
PREAMP
RIÙT PAONO

2V
LEFÏ
LITIY
POWER GUARD LAMP
o45-372
t
INDICATOR
o45-37t
,1/ Ar' Ar' ,1/
MAó2OO
LEFT
lonxAL
RIOHI
TORT L
l5 !.5 V^C
0x0
,
È
a 5
!
z
I
E
,
I
Uz
t-
LA,
lr' /1/
DSa0 os€l
-J
INDICATORS

oo
tl
o
Þ
(J
AUTO-ON PC BOARD
o45 -3 54
^uto /r^tu¡L
MAó2OO
^c
iELY
o/rttu^L
ütofî
i70z eg
2
tl
o
F
oo
o
ÎURX TASLE
toIi
AC
I
POWEi Ot/OF7
AUTO.ON

MAó2OO
I
z
5
4
5
6
7
POWER GUARD LAMP PC BOARD
o45- 372
98?6
INDICATOR PC BOARD
o45-37r
1234567
J
)
)
I
?
3
4
5
6
7
t
0s408
o
o
DS
0s406
oo