SRF-HM01V - Sony Audio Service Manual (repair manual). Page 17

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SRF-HM01V
18
18
4-10. SCHEMATIC DIAGRAMS  – MICROCOMPUTER Board –
 See page 11k for Waveform.
(Page 15)
R304
R305
R306
R307
R301
R302
R303
C301
C302
C303
Q301
Q302
C304
R308
IC303
R332
R336
R312
R313
R314
C307
C308
C309
C310
C311
C312
C313
C314
C318
C319
C321
C323
C324
R318
R321
R322
R323
R324
R325
R326
R327
R328
R330
D301
R310
R311
R331
IC302
C325
R337
C306
R329
C320
R317
C317
C305
R309
C316
L302
R316
D302
R333
R338
R320
R319
L301
C315
BATT2
X301
S302
S301
S303
S304
S306
S305
IC301
R335
Q303
CN301
C322
4.7k
1M
10k
220k
100k
15k
10k
0.01
1
1000p
2SD2216
2SD2216
1
10k
XC61AN0802MR
0
0
1k
1k
100k
47p
12p
0.1
10 4V
0.1
0.1
0.1
0.1
0.1
1000p
0.01
1
1
470k
1k
1k
1k
1k
1k
1k
1k
4.7k
470k
RB521S
1k
1k
100k
XC61CN1002N
0.01
1k
1
4.7k
1000p
1k
1
0.1
1M
1000p
1k
MA2S111 10k
10
100k
0
0.47
75KHz
TC9329FA-112
470k
2SB1218
20P
0.1
A1
A2
A3
B1
B2
B3
B4
B1
B2
B3
B4
A4
A1
A2
A3
A4
G
O
I
OUT
IN
GND
MODE
BAND
ENTER
P5-3
XOUT
XIN
GND
VDB
C1
C2
VEE
C3
C4
VCLD
RESET
MUTE
VDD
P1-3
P9-1
P9-0
P8-3
P5-2
P5-1
P3-3
P3-2
V REG
D0
VDD
OSC IN
GND
IF IN2
INT1
TEST
COM1
COM2
COM3
COM4
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
P8-1
COM1
COM2
COM3
COM4
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
BATT
POWER SW
BEEP
POWER
OSC
F.GND
MUTE
MEGABASS
AM BAND
MONO/ST
FM BAND
BAND2
BAND1
D/D
VT
LCD1
LIQUID CRYSTAL DISPLAY
PAS SECONDARY
BATTERY
(SL-621-FL11N)
RESET SIGNAL
GENERATOR
Q301,302
LOW-PASS
FILTER
GND
BATTERY
VOLTAGE
DETECT
MONO/ST
POWER ON1
BAND1
BAND2
REF SW
FM BAND
POWER ON2
POWER SW
MUTE
AM BAND
MEGA BASS
BEEP
KR3
KR2
KR1
KS2
KS1
TR TEST
TUNE 
TUNE +
MEGA BASS/CLOCK
SYSTEM CONTROLLER
GND
GND
GND
NC
NC
B+ SWITCH
22
µ
H
22
µ
H
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