McIntosh C42 - Tone Control Schematics and PCB; Tone PCB Component Layout

PCB
o49200
R7
R1
5V
SOHl
5g5ct K
CTRLEN
DATA
B3
0
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Ot
oo
EÐ
t
t
CTBLEN
595CLK
DATA
SOHJ
OUTPUTl
OUfPU12
POWERON
5V
J1,1
CTRLEN
J1-2
595CLK
J 1-3
DATA
J1 4
SQHl
J1 5
SPKRl
Jl-6
SPKR2
J1-7
J
1-8
Jl
I
GND
o
z
Õ
@
l
J7-S
J7-B
J7 -7
J76
J1 5
J7
-4
J7
-3
J7-2
J7-1
5V
]LK
SET
QH
OE
129286
a
tc4
tc3
tc1
c E
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J6
oo
J7
oo
aa
aa
o
J2
o
o
a
oo
a
o
aa
J4
o
J3
o
o
a
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J5
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POWER
CONNECTIONS
lc1,tc2,
tc4
7=GND
16=5V
8=GND
2B