Asano LED2295, Service Manual

Page: 21 / 24

R307 NC/0 1 2 SP_L+ SP_L
+
C
A
9
0
0
N
C
/1
0
0
u
F
AMP-EN
R308 NC/0 1 2 SP_R+ SP_R
+12V_NORMAL
+5V_Normal
R
3
1
0
1
0
K
R407 10K
R321
0R
C
9
2
0
1
n
F
C300 2.2u AMP-R
PHONE IN =>Specker OFF PHONE IN =>Specker OFF PHONE IN =>Specker OFF PHONE IN =>Specker OFF
R322
NC
A
M
P
-E
N
AMP-Rin
AMP-Lin
PA1517L U14
OUT-2
6
V
C
C
7
M
U
T
E
/S
T
A
N
D
B
Y
8
IN-2
9
G
N
D
1
0
1
0
G
N
D
1
1
1
1
G
N
D
1
2
1
2
G
N
D
1
3
1
3
G
N
D
1
4
1
4
G
N
D
1
5
1
5
G
N
D
1
8
1
8
G
N
D
1
7
1
7
G
N
D
1
6
1
6
G
N
D
5
_
A
M
P
5
OUT-1
4
S
V
R
R
3
G
N
D
2
_
S
IG
N
A
L
2
IN-1
1
PIN 8 Note: PIN 8 Note: PIN 8 Note: PIN 8 Note:
R336 100
+
C
A
8
6
1
0
0
u
F
1
2
HIGH:OPERATING(8.5V-VCC) HIGH:OPERATING(8.5V-VCC) HIGH:OPERATING(8.5V-VCC) HIGH:OPERATING(8.5V-VCC)
LOW:MUTE(3.3V-6.4V)Ip=40mA
LOW:MUTE(3.3V-6.4V)Ip=40mA LOW:MUTE(3.3V-6.4V)Ip=40mA
LOW:MUTE(3.3V-6.4V)Ip=40mA
LOW_Standby:(0-2V)Ip<100uA
LOW_Standby:(0-2V)Ip<100uA LOW_Standby:(0-2V)Ip<100uA LOW_Standby:(0-2V)Ip<100uA
For HVDD=12V Load=4ohm
POWER GND POWER GND POWER GND POWER GND
+
CA90 470uF
1 2
SIGNAL GND
SIGNAL GND SIGNAL GND
SIGNAL GND
+
CA94 470uF
1 2
C
A
9
5
4
7
0
u
F
C
7
8
5
0
.1
u
F
+12V_NORMAL
L59 0/1206
SP_L+
SP_R+
D104
BAV99
3
2
1
+
C
A
9
1
4
7
u
F
+
C
A
8
9
1
0
0
u
F
R340 100R
+12V_NORMAL
R320
47K
R
3
1
6
2
2
K
+
C
A
9
2
1
0
0
u
F
Q45
3906
1
3
2
R317 1K
Q19
3904
1
2
3
AMP-EN
Mute
R406 10K
C
9
1
8
1
n
F
AMP-L
C301 2.2u
SP_R
SP_L
CN22
4P/2.5
2
2
1
1
3
3
4
4
SP_L+
SP_R+
L-R
R-R
L-R
R-R
SP_R+
SP_L+
R
3
0
4
1
K
/0
6
0
3
1
2
R
3
0
5
1
K
/0
6
0
3
1
2
SP_R
SP_L
CN29
HP-JACK
2
2
3
3
7
7
6
6
4
4
5
5
1
1
R
9
1
6
N
C
/8
.2
K
R
9
0
7
N
C
/8
.2
K
R
9
0
4
N
C
/4
7
R
R
9
1
7
N
C
/4
7
R
R
9
1
2
N
C
/4
.7
K
R915 0/10K
R
9
2
0
4
.7
K
R
9
0
2
N
C
/4
.7
K
R
9
0
3
0
/4
7
K
R901 NC/68R
C
9
1
1
N
C
/0
.1
u
F
R
9
1
3
0
/4
7
K
R906
0/10K
C916
0/2.2uF
Q904
3904
1
2
3
C903
0/2.2uF
C
9
0
1
N
C
/0
.1
u
F
Q902
NC/3904 1
2
3
AMP_AUOUTR0 Q901
NC/3904 1
2
3
OP_VCC
AMP-R
R923 4.7K
+12V_NORMAL
+5V_Standby
AMP_AUOUTL0
OP_VCC
AMP-L
AMP-MUTE
AMP_AUOUTR0
AMP-MUTE
AMP_AUOUTL0