NAD C 320 - Page 10

SCHEMATIC DIAGRAM(POWER AMP)
+18V
MAIN-INR-CH 94,
-18V
MAIN-IN L-CH
R21
(*) —
470
R22
00K
SOFT IND.
+48V
GV
SOFT CLIPPING CIR
+46V
C15
100u
O/P OVER CURRENT
is
Zz
&
4
4
= |
oO
Q
é
a
x RELAY COIL
oO
cn 3
lg ROFESET
10u/16V_
LOFFSET
x
R-CH OFFSET =
=
RIT VRI g
~—— + 5 5
66 7 Ey R PHONES
R120 p14
Ort 100 1Na148, i pHONES
ME aa AA
—
1N4148 TOOWFS ; o
+ ROUT
Cit ==
2200u8.3V) | (0) SPEAKER R+
(0) SPEAKER R-
R230
()-| semen.
10O/IW FS
(0) SPEAKER +
cs BINDING POSTS
10n
‘025
1N4148 =
IW ep c2 a Biss
7 TO HEAT SINK
A R251 ah
1ONWFS
L-CH OFFSET
150 1/4 1%
R27 VR21
R220 024
100 1N4148
IMF /\_ R231
100/1W FS
410
16V NOTE
1. RESISTORS ARE CARBON FILM 1/4W 5% UNLESS SPECIFIED.
FP - FLAME PROOF 5%. FS-FUSIBLE 5%
re)
f-*
fi
™
-
MF
-
METAL
FILM
2%
—CE-CERAMIC
CASE
5%
es f 2 ALL CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 20%
Tas 3 COMPONENTS WITH “/\ ~ ARE SAFETY CRITICAL PARTS
ane
Tic
16D
Aa70.
Bese.
EI
ON
39 o—
SOFT
CLIPPING
SWITCH
RED
GREEN
KAG
ECB
RAK
ee
123
bGs
K
is
IDLING
CURRENT
SETTING
Tico 2SA970 aves ADJUST VR22 LET VOLTAGE BETWEEN TP1 AND TP2 7-9mv
513AW
8157-500
screen
28K363
ADJUST
VR12
LET
VOLTAGE
BETWEEN
TP3
AND
TP4
7—9mV
a
28A1015
2sB649
AS
1U0G
Sakae
2SA1943
.
=
2SC1815
280669
28¢5200
2SA949 80138
80140
Weer KSC2690
oat 288647
16V
-11-