Sharp HR-MB3 Service Manual page 19

R318
0
C318
0.01u
C319
0.01u
C320
0.01u
C321
0.01u
C310
100u/4V
C311
0.1u
R317
0
17 16 15
IC301
TLV320D
AUDIO DAC
12 13 14
301
TL302
C312
+B
100u/6.3V
R344
68K
R345
68K
C313
100u/6.3V
C309
0.1u
C308
10u/6.3V
R305
0
R333
22K
R329
27K
R325
R319
12K
0
TL312
1 SW300 4 3
HOLD
TL307
2
1
2
SW304
3
TL306
SKIP DOWN/
SCROLL LEFT/
REVIEW
7
R_HPOUT
R338
R321
27
FB300
R_HPOUT
1K
L_HPOUT
R323
FB301
R337
1K
27
L_HPOUT
R326 R328
10K
10K
TL314
TL313
4 3 4 3 4
1 1
2 2 2
SW305
SW306
VOLUME UP/
VOLUME DOWN/
SCROLL UP
SCROLL DOWN
8
Figure 6-6 SCHEMATIC DIAGRAM (6/12)
MAIN PWB-A (3/6)
R327
0
TL305
TL304
VA302
130P
VA301
130P
R330
12K
R320
1.5K
TL310
TL308
3 4 3
SW301
RETERN/
1 1
2
SW307 POWER OFF
SKIP UP/
SCROLL RIGHT/
CUE
9 10
6 – 6
TL303
J300
HEADPHONES
AUDIO_GND
AUDIO-L_IN/OUT
AUDIO-R_IN/OUT
C315
0.0033
C314
0.0033
11
HR-MB3
12