Audio research d 400ll pwr schematic

Page 1

5
+73_"__ 2.5 We 33.3ma Idle 1 ma
47.2ma Idle R7 5,0ma max 6,1ma .2oma 65-7 max R29 u ,
83.1ma max 1K * f I 100 I-- 30.8 ma Idle
70,5v R27 G I H 013 66.7 ma max
D400MKII AMPLIFIER I-- N or
k/ 5
INPUT
PAGE 1 OF 5 6-15.93
5 _
AUDIO RESEARCH CORPORATION NM-I);
5740 GREEN CIRCLE DRIVE ; 2.2:: w Idle
MINNEI'ONKA, MN 553434424 I- '.
o
R1A,1B G 0110
0 VW .1
2K gamma
(:1 54.8K
550 pl 142.3K
i I H12A 2mm" R30 K 1.5K OUTPUT
+B+C+D GSJK
gaggK 1423K 51mm 010 I STAGE
I m5 C13
JUMPER PIN I 2 550m
AND PIN 3 FOR 1 R14 50: 52 G
SINGLE ENDED 3 me C10 c12 ma -
INPUT 100K _1 32.4K D MRJTZE
R2 -1 .01 G/yca
R5A+B Y
C VW JVVV
1K 492K 5 j j s
= ' O4
lpl G G -7o.ov 016
g R5 D D
mos/m3 1-5 (gy I 05 ca H24 010
_ .1 .01 162K
TO 5
OUTPUT G G s
as '
D (21%,
PHOFRIEIARY NOTICE THIS DRAWING CONTAINS PATENIED. /\/ R22 Y
PATENTAFPLIED FOR. AND/OR OTHER CIRCUITRY CONSIDERED GY 1 10K
PROPRIETARY BY AUDIO HES WCH CORPORATIoN AND [5 H {I
FURNISHED ON A CONFIDENTAL WIS FOR IDENTIFICATION \ \ {3 /6V]
PURPOSES UNIV 1 014

R8
1K

-73V %

Page 2

D400MKII AMPLIFIER

n44
+65v
27.4 OUTPUT
PAGE 2 OF 5 5-15-93
033 ms 037 cm 041
353 R55 . R57 R59 R61 R63
.2 1 .2 g; :2 .2
OVéfi/C mmna g g g
023 1.05K
R40 ]___1
3.32M mu - D +0UT
4w»! C ' a
10K
41A||B
nasAua
2:113: 13.7K nso n52 n54 H56 ass H60 nsz R64
.2 .2 .2 .2
20:: c111 g 2 :2 g '2 g '2
fimssas 47 7 H
Ifi J (9/990 0/17
026 (:23 mo 032 034 a one 040
02 OFFSET
CORRECTION v
942 '65"
27.4 +15V

AUDIO RESEARCH CORPORATION

5740 GREEN CIRCLE DRIVE
MINNETONKA. MN 553434424

PROPRIETARY NOTICE: THIS DRAM/INS CONTNNS PATENTED.
PATENT APPLIED FOR, AND/OR OTHER CIRCUITRY CONSIDERED
PROPRIETARY DY AUDIO RESEARCH CORPORATION AND IS
FURNISHED ON A CONFIDENTAL WIS FOR IDENTIFICATION
PURPOSES ONLY.

TO RE.