NAD 712 - Front Panel and Motor Control Circuits; Front Panel Display and Control Logic; Motor Potentiometer and NAD Link

FRONT
PANEL
&
MOTOR
POT
thee
Voltage Measured on ICO1
Voltage Measured on [C02
PinNo.
V
Pin
No.
PSUON
-
1
PinNo.
V
PinNo.
V.
1
42
21-24
(is.
|
1-12
1.2
4.0
LCbo1
24
()
25
+5V
13
0
56-57
5.0
5-7
5.0
26-27
ose.
|
14-23
1.2
25
8-9
t)
28-31
1
24
5.0
z
C)
10-15
5.0
32-38
mute
|
25-54
1.2
42
16
C)
39
|
19-20
5.0
|
Dog
at
+5V
|
{
5:
|
8
7
+5V
53.
LED
GREEN
y
R35
8
STANDBY
OSC
_5:
10K
|
[Vdd
56
_
|
[__/INH
_57_|
«sv
[(sstour
10
|
DSEL
Lear
(es
|
—oos
i
[es
62)
Bit
|
Vina
2
:
20K
|
INT3
CM16
Voltage
Measured
on
IC901
+5V
po1
VV
ov
j
PinNo.
V_
{
INT1
13
8
i
VI-514-DP.
1-2
5.0
S|
9-10
5.0
me
ae
P
,
100K
a
tet
AG
D1
f
ROS
:
as
g
past
ia
ve
co4
i
aoe
ov_|
17_|
xtaro
D2
470n/63
Ros
C06
C07
oo
D3
ay
3
|
ou
12
|
ar
CRO1
ov
ov
4.915MHz
ome
STRQ
A
T
2
Peis
t
3
b——rpaia
5
4
b——7stour——
TO
5
b——muTeT__—
Voltage
Measured
on
ICO3
s
p———onrune
—/
TUNER
76
O
PinNo.
_V
Pin
No.
__V
SST
SSSA
PSSST
Re
RT
re
1
3
O
i
13
0
8-10
0
:
4
p——Mures
—/
48
50
11-76
«50
H
NAD
LINK
DIAGRAM
10
b
A
|
7
13
‘
'
"Pp
;
J208L
i
1
conn1
CUT
i
ov
i)
1
fs
+5V
;
i
ah
i
NAD
LINK
J208R
yy
‘
a
26
VOLD
CONN
1
j
O
i)
MOTOR
3
——
LU
:
+5V
+5V
+5V
+5V
POT
7
ee
1
\
R32
R33
R34
R36
Dsw2
*|
DSW3
&
pDswe6
i
1S
bia
10K
OV
rE
SLED
2&
CD
AUX
2
VIDEO
2
T2
1
!
sds
GRN
GRN
GRN
GRN
GRN
OV
i
JPO7
DATA
|
RM
R12
R13
R14
RI7-+5V
Wo
oh
eA
tat
Mette
A
path
ten
tee
i
J
TO
POWER
SW
Oe
Peake
750
750
750
750
750
ne
SEL
b—MuTeE———7
|
=
bp—
rien
b
+5V
R29
1K8(45V
JPOG
POWER
b
PSUON
Q03
SUPPLY
b
2SA1015
R20
OV
I\__STEREO
+12V
2K
R
DOS
a
STEREO
AMBER
+12V
R21
ONTUNE
+5V
Icos
1_|
vec
p04
+5V
ONTUNE
IRS
2
|
op
GREEN
zs
D17
Qo2
1N4148
3
|
oy
loo
Rig.
ae
2SA1015
ov
1
2
R25
2801815
.
3
CLK1
4K7
R28
DI6
3
1K8
;
1N4148
L
oit
fk
X24C01
K
IN
|K
ov
I
T
fe
3K3
2SA1015
1.
RESISTORS,
UNLESS
OTHERWISE
SPECIFIED
ARE
1/4
WATT.
P
as
i
7
-
.
28C1815
2.
ALL
CERAMIC
CAPACITORS,
UNLESS
OTHERWISE
SPECIFIED,
ARE
50V,
10%.
25
26
NAD-00126 / DRUCK 8