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15
2326SCMZ
AVR400
(FRONT)
J.I.H
B
12345
D
C
B
A
6
C
D
A
APPROVECHECKDESIGN DRAWING NO
1
1
MODEL
SHEET
1
SCHEMATIC DIAGRAM
REVISION
1
2
3
4
5
6
7
MP
FROM POWER TRANS
VFD_CS
VFD_CLK
VFD_DATA
Filament V(AC)
40V
REMOTE_IN
VFD_RST
GND
GND
V DISP
ST+5V
+5VD_SYS
ESD
KEY_1
MENU
INPUT-
INPUT+
OK
KEY_2
DIRECT
DISPLAY
ZONE
MUTE
HP_IN
L-CH
R-CH
-
+
-++15V
-15V
IC902 NJM4556AL
MIC SIGNAL IN
MIC SIGNAL OUT
+15V
-15V
R-CH
L-CH
-15V
MIC SIGNAL IN
NJM2068M
MIC_RELAY_ON
MIC SIGNAL
-15V
+15V
+15V
-15V
+15V
H/P MUTE
A=-Rout/Rin=-10K/1K=-10
A=1+(Rout/Rin)=1+(3.9K/1K)=4.9
-15V
MIC_RELAY_ON
-15V
+15V
HP_DETECT
HP_L
HP_R
FRONT AUX_L(MIC)
FRONT AUX_R
A_GND
D_
GND
D_GND
+5VD
D_GND
F_OPT
D_GND
INFO
MODE
VOL-
VOL+
A_GND
SWITCH
FRONT
TO INPUT BD
HP_GND
VOL_EN1
VOL_EN2
KEY1
KEY2
VFD_CS
VFD_CLK/Z2 OSD CLK
VFD_DATA/Z2 OSD DATA
VFD_RST
IR_IN
MIC_IN
HP_IN
HP_MUTE2
ST +5V
+5VD
D_GND
F_OPT
D_GND
HPL_OUT
HPR_OUT
+15V
-15V
MIC_SIGNAL
HP_RELAY_ON
KEY1
KEY2
VFD_CS
VFD_CLK
VFD_DATA
VFD_RST
+5VD
F_OPT
HPL_OUT
GND
HPR_OUT
MIC SIGNAL
HP_GND
A_GND
HP_GND
HP_RELAY_ON
TO AMP BD
L.J.H S.H.S
10.11.17
AUX_L
AUX_R
FRONT AUX_L(MIC)
FRONT AUX_R
HP_L
HP_R
FRONT AU
X_L
FRONT AUX_R
HP_RELAY_ON
MIC_RELAY_ON
STBY
PWR ON
RED
GREEN
L.E.D
TO HEADPHONE BD
C903 : 47uF/50V -> 47uF/25V
2010.04.12
2010.04.12
C903 : 100uF/63V -> 47uF/63V 2EA
CUP12326Z-1
CUP12326Z-2
HP_IN
D_GND
F_OPT
D_GND
FRONT AUX_R
FRONT AUX_L
+5VD
HPL_OUT
HPR_OUT
HP_GND
+15V
-15V
MIC_SIGNAL
HP_RELAY_ON
-15V
KEY_INPUT_INT
GND
GND
GND
FAN
FAN
FAN
FAN
LED
CUP12326Z-3
STBY(LED)
LED
HIGH : PWR_ON(LED)
LOW : STBY(LED)
FROM AMP BD
FROM FAN
KEY_INPUT_INT
HP_L
HP_R
Filament V(AC)
10.11.17 10.11.17
CWB1B01312047
R919
1K
R918
1K
R917
1K
C915 0.1uF
R916
47
C916
1000P
C917 1000P
C918 1000P
R912
4.7
R913
47
R914
47
R915
47
R910
8.2K
C957
100/16V
C914
0.1uF
C919
0.1uF
C904
0.022u
C905
0.022u
C913
0.1uF
321
VccGNDVOUT
RC901
R909
10
R911
10
R920
1K
D901
4.3V
C903
47/25V
D904
27V
D903
13V
C909
47/63
Q901
C1027Y
D916
1N4003
R908
47K
C911
0.01uF
C910
47/63
R906
1.2K
C908
0.01uF
R905
100K
R907
100K
R901
3.3
1674849505152 557
F1
IC
NC
TEST
CP
DA
DO
CS
RESET
OSCO
LGND
5354
IC
25556
F1
VDD
DGND
VDISP
5862
F2
F2
61
FIP91
CFLHCA16S202T
C912
39P
R904
3.3
1 2 3 4 5 6 7
891011121314
IC901
HVITC74HCT7007F
D909
OPEN
C953 OPEN
D908
OPEN
R977 OPEN
JW901
OPEN
C907
47/63V
C906
OPEN
C920
1000P
R921
1K
R923
1.8K
R922
1.5K
S902
S903
S904
S901
C921
1000P
R926
1K
R928
1.8K
R927
1.5K
S908
S909
S910
S907
2 1
BN502
CWB4F032950UZ
C901
470P
54321
CN94
R902
10
D902
3.9V
C902
0.022u
Q908
C107M
Q910
A107M
D906
R938
100
R937
100
R936
4.7K
Q905
C2874
C930
10/50V
C929
10/50V
C932
47/25V
C931
47/25V
J967
J966
R943
56K
R942
56K
C933
680P
R941
3.9K
8 7 6 5 4 3 2 1
IC902
R935
4.7K
Q904
C2874
C936
330uF/10V
R948
56K
R947
56K
R945
1K
R944
1K
R946
3.9K
C934
680P
C935
330uF/10V
2
7
1
8
34
65
RL901
C937
0.047
R959
100K
R956
2.2K
R957
1.5K
R958
10K
C944
10/50V
C942
470P
C938
10/50V
R960
470
R962
470
R963
100
R964
100
C940
47/25V
C941
47/25V
C939
47P
R961
10K
R965
10K
C943
150P
V+
B OUTPUT
B-INPUT
B+INPUT
V-
A+INPUT
A-INPUT
A OUTPUT
-+
B
- +
A
8 7 6 5
4321
IC903
R955
56K
S905
S906
S911
S912
R924
2.7K
R925
3.3K
R929
2.7K
R930
3.3K
2
7
1
8
34
65
RL902
D907
C924
150P
C922
100/16V
Q909
C107M
Q911
A107M
R931
4.7
C926
10/16V
C925
0.1uF
V+
B OUTPUT
B-INPUT
B+INPUT
V-
A+INPUT
A-INPUT
A OUTPUT
-+
B
- +
A
8 7 6 5
4321
IC904
R933
OPEN
R934
OPEN
R932
OPEN
R985
100
R984
100
C958
47/25V
C959
47/25V
13 12 11 10 9 8 7 6 5 4 3 2 1
BN93
C960
47/63V
D917
R986
OPEN
30
3123
22
21
20
25 29
28
27
262414 16
17
18
1915
8 10
11
12
1393 7
6
5
42
1
CN101
1.25mm Angle FFC
S913
KSH1A001ZV
Q906
HVTKRA107MT
Q907
HVTKRA107MT
R903
0
Q902
C107M
Q903
C107M
C927
0.01uF
C928
0.01uF
R980
OPEN
R981
OPEN
G R
D905
R978
220
R979
330
R988
56K
R987
56K
Q913
C107M
Q912
HVTKRA107MT
R989
10K
321
CN91
21
CN95
2 1
CN96
A_GND
HP_GND
HP_GND
HP_GND
A_GND
A_GND
A_GND
A_GNDA_GND
A_GND
+5VD
M_GND
M_GND
M_GND
M_GND
M_GND
M_GND
M_GND
M_GND
M_GND
M_GND
M_GND
M_GND
M_GND
M_GND
M_GND
M_GND
M_GND
A_GND
HP_GND
A_GND
M_GND
M_GND
M_GND
D_GND
A_GND
CHGND
M_GND
M_GND
M_GND
A_GND
STBY+5V
M_GND
M_GND