McIntosh MA 5100 Manuale utente
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sTARTTNG
wrTH
sERIAL
No.
30H15
McINT0SH
LAB0RAT0RY
lNC.
MA S|OO
SERVIffiffi
INFORMATION
64'
2 CHAMBERSSTREET
BINGHAMTON,
NEWYORK
---
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Unless otherwise specified, resistance values are in ohms, L/2
watt, and I0% tolerance. Capacitance values smaller than I
are in microfarads (mfd); values greater than t are in pico-
farads (pF.
) .
The terminal numbering of rotary switches and printed circuit
board wires is for reference only.
A11 voltages are measured under the following conditions:
1. Use of an lO-megohm input impedance VTVMvoltmeter.
2. AII voltages !LO% with respect to chassis ground.
3. No signal at input terminals.
4. AC input at LL7 volts, 50/60 cycles.
5. Front panel controls at:
Input Selector AIIX
Mode Selector STEREO Tape
Phase
Speaker
Power
LF Filter
HF Filter
Iroudness
NOR}iIAL
oo
ON
ON
FLAT
FI,AT
NORMAL
Volume
Balance
Bass
TrebIe
Comp
IVIAX
ZERO
FI,AT
FI,AT
RTAA
PREAMP,SECTIONPRINTED
CIRCUITBOARD
O43-723
-
1
Ii
J
I
il
:f
I
i
",';;ir
l r----.,,-k=."',i;'"Illi
",.--*4,.^r-:,:ll i
r/2 PARrum-Oza _ j
z
E
3=
-z
-
:{
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I
I
tov
RII I RI7
f-
I
I
I
I
/ SI.2 FRONT
/ (PARTIAL)
REAR
l- aux
o
F TAPE
l
O. TUXER
z
- PHONO I
J
lrJ PHONO 2
z
Z TAPE HO
o
F
r
lrl
J TAPE
l_ uorrron
TAPE
OUTPUT
tul
Le_t
8V
lOOntd/12
V
RzZ 75V
I
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t5K
ct2
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1l
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c24
-22
33
;
;
T aux
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f
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z
- pHolo t
J
IIJ PHONO2
z
Z rlpE Ho
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o
F
I
I
tr. TAPE
LroNrToR
TAPE
OUTPUT
s4
FRONI
'----J
I
ORN/WHT
L_- "!to"gglt:-J
- +R58C (FILTER SECTION)
I
I
I
c
r5
R648
500 K
i
I
I
-t
vto
loo K
L rj. ",..:".
PREAMP.SECTION
PRINTED
CIRCUITEOARD
o43- 723
li--
,47
Qtl
l-"rl
tsl
=l
"l
dl
LTI
.47/75V lOOald/ l2 V
RIGHTOUTPUT
HEAVY LINE SHOWS
PRIMARY
SIGNAL
PATH
ct8 40
22
R
l5
c
i n: I
J
R64A
500 K
R55
to0K5%
l1
lr
ll
82
K
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oto
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3l
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PREAMP.SECT
ION
MA5lOO 154
- 282
L + R58D
(FILTER
SECTIoN)
(
PRE
6r
LEFT IIIPUT_
(FROI LEFT OUTPUT
OF PREAMP
SECTIONI
R5EB
ATP SECTION)
rl-
| + REol
7--
ti I
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II
I
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ll
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R||9
r.5ilr; zoa Y
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470 K
FILTER SECTION
PRI
o43
680 5*
TED
C
722
4.?K 5L
RCUIT
BC I
ARD :ov*-@!I-rsv
I
J'\
--9,-
I cntr
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+ | WXT/A
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I
I vlo/
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tl
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q
!
RilO
I-(
to4
cilz
o<
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ot
.+
+
RfGHT
ftfPUT
-
(FROM
RIGHT
OUTPUT
OFPREATP
SECTION}
t
I
aarl
Y
-glYrb
_e!9,5
-EE9X
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*I
i
qc
n lt8
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e
|
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6Rll/
t.2x 5%
9
3.3K 5*
tl
9o
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qo 35:t4
T1.8
ERll4
it=-
I drrlren
I
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t
58A
tE
IP
t 5 garz
t50
R120
r.infdao% I I t::#8i'
.t | --
---i Y
J : L--
LTER
SECTION
PRINTED
4?oK I seo
s* 4'7x 5L
+
-- _ _--_J
S
;IRCUIT
BOARD
O43-7?2
M
q
ffi
Wlu"nr*",
>l
ffi
F
ILTER
MA
5loo
POWEROUTPUTSECTION
PRINTEDCIRCUIT
BOARD
O43-7?4
ANNEL
I
LEFT
CH
i l;^-
r(a
ilrd
Hl[,1fr;
+l
+H(
PUT
IT OF
JT sEcrtot)
RIGHTCHANNEL
POWER
OUTPUTSECTION
PRINTED
CIRCUIT
BOARD043_724
Q
219 Q
2t7
TOP BOTTOM
@@@
Q
2r3 Q
215
Q
220 Q
218
TOP BOTTOM
@@@
Q214 0 216 Q
212
LOCATION
OF
TRANSISTORS
NOTON PRINTEDCIRCUIT
BOARDS
LEFTCHANNEL
POWER
OUTPUT
SECTION
PRINTED
CIRCUIT
BOARD
O43-7?4
--l I
(FROX
LEFT OUTPUT
OFFILTER
SECTIOT)
LEFT ITPU
f
0
il5 V
-.o<
YEL
---)r-- ot'1
- ,04
:--\/* o'',
R€D/WHT --l
RIGHTCHANNEL
POWER
OUTPUTSECTION
PRINTED
CIRCUIT
BOARD
O43
- 724
9 azze
IFROMRIGHTOUTPUT
OFFILTER
SECTION)
RIGHT INPUT R202
9
i
I
j
i
i
R214
HEAVYLINE
SHO
+
TT-l-t
l*telf"''
) |..1"."1 ti
Rl:
ali
to*
R251
l--'Fy'"''"1
I li,nTl I "-.","
L+R OUTPUT(e_*
I 1 I 1 -=€:'
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I ITB I AD2r2
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t-
I
-
:lt
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l" "'"1 |
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I
I oN
220 5%
LEFT
SPEAKER
? OUTPUT
I
I
HEADPHONES
t
o^__
POWER
OUTPUT
SECT
I
ON
MA
5lOO t54-244
|lS
PRIMARYSIGNAL PATH
_lI
I
R39
HEAVY LINE SHOWS
PRIMARYSIGNAL
PATH
VIO/WHT RIGHT OUTPUT
PREAMP.
SECTION
MA5f
OO t54
- 242
--'t-
o
OFF
c 303
t-:
REDI
']
I
9V
oi!
-P
rl
I
I
tl
t
-o
'8
.
oo5/t400v
f
I
I
IL
III
IAJ
'll-ll-
?t t"l t"
fIl
(FROI LEFT OUTPUT
OFFILTER SECTIO]I'
rEF T
l|7V
AC
70- 200
w
50- GOCPS
(FROM
RIGHT
OUIPU]
OF FILTER SECTIOII)
RIGHI IIPUT
i{o
oo
-::
.otv
I
f
II
I
i
R302
220 5W R303
220 5W R304
t.2K
rw R305
8.2
K
R301
too 5w
R307 R308
loo 5w 220 5W
o
E
Ro
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o
o
o<
!8
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o
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6
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9E
POWER
SUPPLY
SECTIO
N
MAstOO t54
- 285
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2
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