1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
D
D
C
C
B
B
A
A
12V
ROUT+
LOUT+
LOUT
a
ROUT
a
RA8
RA11
RA12
RA13
CA15 CA16
CA14
CA13
RA4
RA5
CA9
CA8
GND
GND
GND
RA10
CA18
GND
+
LA1
+
LA2
+
LA3
+
LA4
GND
GND
GND
GND
GND
GND
12V
12V
CA22
12V
12V
PD
1
ERROR
2
SDATA
3
LRCIN
4
SDA
5
SCL
6
RESET
7
VSS
8
VDD
9
SA0
10
MCLK
11
BCLK
12
VDDRA
13
NC1
14
RA
15
GNDR
16
RB
17
VDDRB
18
VDDLB
19
LB
20
GNDL
21
LA
22
NC2
23
VDDLA
24
E
P
A
D
UA1
GND
CA23
CA24
CA25
CA26
CA21
CA2
CA60
CA61
GND
HP_VCC
GND
GND
GND
UVP
RA17
RA54
CA57
CA58
CA59
RINP
1
RINN
2
ROUT
3
G
N
D
4
SDN
5
V
S
S
6
CPN
7
CPP
8
VDD
9
P
G
N
D
10
UVP
11
LOUT
12
LINN
13
LINP
14
APA2171
TSSOP14
UA2
HP-SDN
HP_VCC
GND
RA55
RA56
AGND-HPL
AGND-HPR
AGND-HPR
AGND-HPL
UVP
GND
HP-SDN
RA57
GND
RA58
GND
RA59
RA60
HP_OUT_R
HP_OUT_L
RA64
CA36
PCB
路
RA62
RA1
RA2
GND
RA35
AMP_RESET
CA31
GND
RA9
AMP_RESET
GND
GND
RA3
RA6
CA4
CA3
GND
RA14
RA16
HP_AUOUTL_IC
HP_AUOUTR_IC
HP_MUTE_IC
CA29
GND
3V3_M
AMP_RESET_IC
3V3_M
3V3_M
AMP_SDA_IC
AMP_SCL_IC
AMP_SDA_IC
AMP_SCL_IC
3V3_M
I2S_DATA_IC
I2S_LRCK_IC
I2S_MCLK_IC
I2S_BCLK_IC
CA30
HP_DET_IC
RA7
CA32
GND
POWER_ON
CI12
CI11
CA28
CA33
RA15
RA18
GND
GND
RA51
RA52
GND
CI20
CI19
HP_OUT_R
HP_OUT_L
a
E1
12V
RA67
RA69
RA68
CA19
CA27
CA17
CA5
CA7
CA10
CA12
CA6
CA11
CA20
CA1
LINE_AUOUTL_IC
LINE_AUOUTR_IC
RA19
RA20
1
4
2
3
5
6
AV1
HP_DET_IC
CA39
RA23
5V_M
HP_DET
C
B
E
QM7
RA24
RA21
RA22
GND
GND
GND
HP_DET
LINE_MUTE_IC
RA25
1
2
3
4
CNA2
1
2
3
4
CNA1
LOUT-
ROUT-
LOUT-
ROUT-
LOUT+
ROUT+
LOUT+
ROUT+
Summary of Contents for 32D1281
Page 27: ...1 No power No power LED RC or Key can not turn on TV Power LED no light no change...
Page 28: ...2 No Display Black Panel Back light is OK sound is OK but no picture...
Page 29: ...3 No back light Power LED logic OK sound OK but no picture Different from No Display...
Page 30: ...4 No sound One or all signal source without sound...
Page 31: ...5 Signal source no function One or several source no function...
