NAD 216 - Alignment Procedure

ALIGNMENT
PROCEDURE
EQUIPMENT
Digital
voltmeter
(DVM)
switched
to
200mV
DC
range.
TEST CONDITIONS
Ensure
VR301
and
VR302
are
set
to
minimum
(fully
counterclockwise)
before
first
switching
on.
get”
Preheat
Minimum
five
(5)
minutes
Load No load
Input No signal
ALIGNMENT
=
Connect
DVM
across
TP301
and
TP303,
Left
Channel.
2.
Adjust
VR301,
Left
channel,
for
a
reading
of:
214
.20mV
+1.5mV.
216
18mV
+1.5mV.
3.
Connect
DVM
across
TP302
and
TP304,
Right
channel.
4.
Adjust
VR302,
Right
channel,
for
a
reading
of:
214
20
mV
+1.5mV.
216
18mV
+1.5mV.
Leave
power
on
for
a
further
five
(5)
minutes
(minimum).
6.
Repeat
steps
1
to
4.
=
Left
Channel
Right
Channel
z=
—
—————
on
————
|
TP303
———
~ TP304 | ———=———
geen
=
cea fos)
TP301
B
SS
1302
|
———————
———
IDLE
IDLE
Ls
CURRENT
CURRENT
ae
SS,
oun
ees
we
=
ZI
C5
AMPLIFIER
ADJUSTMENT
POINTS
14