User Guide

DESCRIPTION
COMPONENT
NO.
Switch,
Input
Selector
Switch, Bass Compensator
Switch, Treble Compensator Switch,
High
Frequency
Cutoff
Filter
Switch, Rumble Filter Switch, Mode Selector
Switch,
Tape Compare
Switch, Tape Jack Switch, Phase Silicon Rectifier,
50 PIV at
1.6A
Transformer,
Power
S1 S2
S3 S4
S5 S6
S7
S8 S9 S1, S2
M199A
DESCRIPTION
COMPONENT
NO.
Filter Capacitor,
20/20/40
MF at
300/350/350V
Filter Capacitor,
40/40
MF at
350/350V
Filter
Capacitor,
1000/1000
MF at
15/15V
Control, Bass
Control, Treble Control,
Loudness (Aural Compensator)
Control, Volume
— 4
Section
combined
with
power
on-off
switch
Control, Balance Control, Bass
Trim
(Lo
Bass)
on
rear panel
C102 C103 C104
R1
R2 R 3 R4 R5
R7 (2
used)
Special
components used
in the C20 are
listed
below.
These
compo-
nents
are
designed
and
built specifically
for the
C20. They
may be
pur-
chased
directly from Customer Service, Mclntosh Laboratory Inc. When
you
Table
2.
SPECIAL
COMPONENTS
(Schematic
No.
SC119-201)
order
parts
be
sure
to
give
the
SCHEMATIC
NO. and
DESCRIPTION
from
Table
2
below,
and
serial
and
model
number
for
your amplifier.