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12.12. A-Board (8/19) Schematic Diagram
A-BOARD (8/19)
A-Chip_A
!
TO Sheet TUNER
R2101
R2121
3.3k
680
R2103
22
Q2109
TO 11/19
SIF
DSA200100L
R2110
22
R2102
C2110
16V
4.7k
0.1u
Q2101
R2104
DSA200100L
1.2k
TO Sheet AVSW
C2055
10V
R2053
10u
140k
AV_L
1%
TO 9/19
C2057
10V
R2055
10u
140k
AV_R
1%
TO
LO1_L
2,8,9/19
LO1_R
HP_LOUT
TO 10/19
HP_ROUT
to HeadPhone out L, R
R2070
10k
Q2253
B1AAFB000002
Q2254
B1AAFB000002
64
65
SUB5V
TO Sheet Peaks-COMMON
R2135
1k
C2107
R2139
10V
R2107
1u
220
0
SIFINP
C2104
TO 2/19
50V
10p
C2108
10V
1u
SIFINN
TO 3,6/19
PG-SOUND_SOS
TO 3/19
NSHUTDOWN
TO 3/19
LIN5_LP
TO 2/19
LIN5_RP
<< Monitor L
LO1_L
MON_L-OUT
TO 2,8,9/19
<< Monitor R
LO1_R
MON_R-OUT
C2067
C2068
16V
16V
0.01u
0.01u
C2071
6.3V
100u
R2065
>> MainHP L
HP1_L1
S
TO 2/19
R2066
>> MainHP R
HP1_R1
S
C2072
C2074
C2073
6.3V
R2069
25V
25V
100u
10k
0.033u
0.033u
AVDD3.3V
R2260
10k
R2258
100
TO 2/19
A_MUTE
MUTE NORMAL
Q2252
R2264
R2254
R2263
DSA200100L
100
100
10k
R2259
Q2255
100
DSC2001S0L
TO Sheet Analog-ASIC
MUTE
HP_MUTE_CTL
OPERATE
TO 12/19
TO 12/19
66
67
SUB3.3V
TP2008
Q2301
R2308
DSA200100L
220
To SOS
EA8
R2310
OPERATE
SOS
2.2k
C2301
R2307
16V
4.7k
0.1u
R2309
D2014
2.2k
B0ACCJ000048
C2302
16V
0.1u
SUB3.3V
OPERATE
R2301
R2330
RESET
10k
0
MUTEB
PWM_READY
R2331
0
MUTE
PWM_WO_L+
PWM_WO_L-
R2302
EXB28V220JX
PWM0LN
PWM0LP
PWM1RN
PWM1RP
AMP_MUTE
68
69
54
L2301
J0JHC0000042
G1C3R0ZA0156
C2357
C2356
C2309
C2312
25V
25V
25V
25V
10u
10u
10u
10u
AUDIO AMP
IC2301
C1AB00003230
1
44
STBY
PVD1
C2313
C2314
2
MUTE
43
50V
25V
PVD1
1000p
1u
L2303
G1C220MA0416
3
42
SOS
R2304
OUT_CH1_P
C2335
47k
25V
4
NC1
41
0.1u
OUT_CH1_P
5
40
C2316
50V
0.1u
NC2
BOOT_CH1_P
C2334
6
NC3
39
C2317
25V
1u
50V
VDDA1
0.47u
7
38
C2318
50V
0.1u
NC4
BOOT_CH1_N
8
PWM_A1
37
OUT_CH1_N
L2304
G1C220MA0416
C2336
9
PWM_B1
36
25V
OUT_CH1_N
0.1u
10 NC5
35
PGND1
11 NC6
34
PGND1
12 NC7
33
PGND2
13 GND
32
PGND2
L2305
G1C220MA0416
14 PWM_B2
31
OUT_CH2_N
15 PWM_A2
30
OUT_CH2_N
C2338
16 NC8
29
C2321
50V
0.1u
25V
0.1u
BOOT_CH2_N
C2337
17 NC9
28
C2320
25V
1u
50V
VDDA2
0.47u
18 NC10
27
C2323
50V
0.1u
BOOT_CH2_P
19 NC11
26
OUT_CH2_P
L2306
G1C220MA0416
20 NC12
25
OUT_CH2_P
C2339
21 NC13
24
25V
PVD2
0.1u
22 NC14
23
PVD2
C2325
C2324
50V
25V
1000p
1u
70
71
S_15V
L2302
C2304
25V
1u
R2318
3.3
C2340
C2349
50V
50V
0.022u
1000p
C2341
50V
0.022u
C2342
50V
TP2301
0.022u
C2343
50V
C2351
A11
0.022u
50V
1000p
R2319
1
L+
3.3
TP2302
2
L-
TP2303
3
R+
C2353
TP2304
R2320
4
R-
50V
3.3
1000p
C2344
TO SPEAKER
50V
0.022u
C2345
50V
0.022u
C2346
C2355
50V
50V
0.022u
1000p
C2347
50V
0.022u
R2321
3.3
72
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