38
X-EM21V
1
2
3
4
A
B
C
D
E
F
1
2
3
4
10.4 MAIN ASSY (4/
8
)
CAUTION:
1).DISCONNECT POWER CORD BEFORE SERVING
2).COMPONENTS MARKED WITH HAVE CRITICAL
CHARACTERISTICS.
ONLY REPLACE WITH THE
COMPONENT OF THE SAME TYPE NUMBER
3).SUBJECT TO CHANGE WITHOUT NOTICE
H=Play / L=Mute
!
C301
1U
C304
1U
C311
1U
C310
1U
R303
1K
R325
1K
R
324
33K
R
322
33K
C319
2.2U
C320
2.2U
C314
100P
R329
4.7K
R328
4.7K
C318
100P
C327
470U
25
C321
1U
C3
02
1000P
B
C
E
Q301
S9014
R
317
470K
R319
10K
C3
06
0.
1U
B
E
C
Q307
S8550
B
C
E
Q304
S9014
R
330
1K
R331
47K
R312
33K
R316
10K
R3
18
100K
R
341
1M
1
SUBGND
2
OUTPB
3
OUTP_B
4
PGNDB
5
PGND_B
6
PVCCB
7
PVCC_B
8
OUTNB
9
OUTN_B
10
OUTNA
11
OUTN_A
12
PVCCA
13
PVCC_A
14
PGNDA
15
PGND_A
16
OUTPA
17
OUTP_A
18
PGND
19 VDDPW
20 STBY
21 MUTE
22 INPA
23 INNA
24 ROSC
25 SYNCLK
26 VDDS
27 SGND
28 DIAG
29 SVR
30 GAIN0
31 GAIN1
32 INPB
33 INNB
34 VREF
35 SVCC
36 VSS
IC302
TDA7491HV
C337
0.1U
C345
33P
C344
33P
C343
33P
C346
33P
C339
0.1uF
R338
39K
C338
0.1uF
R337
100K
C341
1U
R339
0R
R340
0R
C342
1U
C340
0.1U
R302
22R
B
C
E
Q305
S9014
R321
10K
L303
FB/AI
C332
HP-CT
MUTE-EN
+3.3V
AF-L
AF-R
HP-DET
P-MUTE
+3.3V
STBY
P-MUTE
A
4/8
Содержание X-EM21V
Страница 27: ...27 X EM21V 5 6 7 8 5 6 7 8 A B C D E F ...