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5
7-1. MAIN BOARD CIRCUIT DIAGRAM
* CAUTION :
THE PARTS MARKED WITH
ARE IMPORTANT PARTS ON THE SAFETY.
PLEASE USE THE PARTS HAVING THE DESIGNATED PARTS NUMBER WITHOUT FAIL.
D
+
R302
EC300
330K/1206
D302
D303
68uF/400V
IN4007
IN4007
R303
D300
D301
IN4007
IN4007
!
!
R306
R305
C
CY301
250V/471PF
IC300
NC
NC
OB2273
CX301
NC
3
!
CY303
NC
2
3
1
!
LF300
ET-20
4
2
CY300
250V/471PF
CX300
0.1uF/275V
R300
R301
R321
1.5M
1.5M
100K
!
B
VR300
2
1
!
HEL10D471K
F300
T1.0AL250V
!
C300
473PF/100V
L
N
!
CON300
A
5
4
T1
EEL25
1
C303
102P/1KV
330K/1206
D305
FR107
C317
R304
68P/1KV
330K/1206
FB300
#3*6
3
D304 1N4148
Q300
10-23.5V
R312
100R
MD70R900P
1
R311
4.7K/0805
RI
6
GATE
4
R323
1K/0805
CS
FB
C302
470PF/0805
D306
R310
10R/1206
M7(1N4007)
4
ZD301
C301
+EC301
NC
0.1uF/X7
22uF/50V
5
IC302
R322
2.2R/1206
4
3
ZD300
15V
SANREQI1
M2
M1
M3
M4
M3.2-6.1
M3.2-6.1
M3.2-6.1
M3.2-6.1
C319 0.1uF
4
3
BT MODE SPARE
!
C316
1KV/102P
R338
10R/1206
L302
100uH/1A
D310
HER103
8
R337
R336
+
+
C315
C314
EC310
EC311
0.1uF
0.1uF
100uF/16V
100uF/16V
100K
BT_GND
9
C321
0.1uF
10
+
EC308
C310
R339
100uF/16V
0.1uF
100K
Q304
S8050
D309
HER103
12
2
R332
10K
FB301
#3*6
AMP_GND
6
C311
0.1uF
GND
10
C307
EC304
C308
C306
R340
1000uF/16V
EC305
0.1uF
102PF/1206
22R/1206
0.1uF
1000uF/10V
L301
D308
SR360
+5V
10uH/1A
11
C304
R324 22R/1206
7
1KV/102P
L300
D307
HER303
10uH/2A
AMP_VCC
AMP_VCC
C305
+
+
EC302
EC303
C320
0.1uF
1000uF/25V
470uF/25V
0.1uF
AMP_GND
CY302
250V/471PF
!
EL817
R316
330R
+5V
1
2
R317
3.3K
R318
C318
R320
10K/1%
!
1K
104PF/X7R
(1+R320/R319)*2.495=Vo
3
IC301
WL431
R319
R355
9.1K/1%
NC
3
2
Q306
RCR1525SI
BT_VCC
2
3
+
C313
R335
EC309
0.1uF
10K
1K
10UF/16V
Q305
2N3904
R334
4.7K
BT_CTRL
1
BT_GND
Default Power ON(BT_CTRL)
R333
1
ON
100K
0
OFF
-P5V
3
EC312
C312
10UF/16V
100PF
Q303
S8550 2
3
+P5V
IC303
ADS5210/SOT-89
M33V
2
3
VIN
OUT
R331
10K
+
EC307
C309
100UF/10V
0.1uF
Q302
RCR1525SI
A+5V
+P5V
2
3
R326
+
USB_VCC
100K
EC306
100uF/25V
R330
A+5V
150R/1W
R327
1K
R325
Q301
C201
NC
2N3904
0.1uF
R329
4.7K
STBY_CTRL
1
Default Power ON
R328
100K
1
ON
0
OFF
Q310
RCR1525SI
2
3
USB+5V
R351
100K
R350
1K
Q311
2N3904
R349
4.7K
USB_CTRL
1
R341
100K
2
1
D
OFF PAGE
POWER CONNECTION
USB_VCC
USB_VCC
(1)
BT_VCC
BT_VCC
(1)
-P5V
-P5V
(1,2)
+P5V
+P5V
(1,2)
USB+5V
USB+5V
(1)
AMP_VCC
AMP_VCC
(2,3)
M33V
M33V
(1)
STBY_CTRL
STBY_CTRL
(1)
BT_CTRL
BT_CTRL
(1)
USB_Current
USB_Current
(1)
GND
GND
(1,2)
AMP_GND
AMP_GND (3)
BT_GND
BT_GND
(1)
EQ_VCC
EQ_VCC
USB_CTRL
USB_CTRL
Design standard
+P5V
0.2A
C
-P5V
0.1A
M33V
0.8A
VCC
1.5A
AMP_VCC
1.2A
EQ_VCC
R227
0R
ZD200
R219
NC
U21
LM393
47K
C206
0.1uF
2
-
1
3
+
B
R220 1K
5
+
USB_C
7
1
6
-
Q200
2N3904
A
1