Puxing PX-328, Service Manual, Page: 28 / 30

6 5 4 3 2 1
E
D
C
B
RV378
100K
C378
104P
3
2
5
4
1
JK511
ST-301
C329
10P
R320
47R
C320
470P
R325
1K
V
cc
1
1
V
p
1
2
D
o
R
F
3
G
N
D
_
D
4
f
in
R
F
5
f
in
R
F
6
G
N
D
_
A
7
O
S
C
in
8
G
N
D
_
D
9
F
o
L
D
1
0
C
lo
ck
1
1
D
a
ta
1
2
L
E
1
3
G
N
D
_
A
1
4
f
in
I
F
1
5
f
in
I
F
1
6
G
N
D
_
D
1
7
D
o
I
F
1
8
V
p
2
1
9
V
cc
2
2
0
U311
LMX2332
C318
102P
R312
1K
C386
102P
C387
102P
R388
33K
R389
180R C388
104P
R326
0R
C326
102P
R368
560R
C313
101P
R367
560R
C314
101P
R365
2K2
C315
101P
R366
6K8 R364
4K7
E367
0.1uF
E363
1uF E364
0.1uF
D312
PMSD4148
XOUT
3
VC
1
5C
4
GND
2
CR311
14.4MHz
VR351
50K
E326
4.7uF
L361
101T
PR311
1K
R363
0R
R362
150R
E377
4.7uF
R377
22K
R376
22K
C319
104P
5C
5
C
C
P
-T
X
/R
X
PLL_CS
PC3
N/W/LD
DQTo
P
C
1
P
C
2
P
C
3
P
C
4
E319
4.7uF
C312
NC
R311
150K
R313
NC
T322
2SC3356
L325
18nH
C327
NC
C328
2P
C325
103P
C381
47P
R382
220K
T362
2SC4215
C385
82P
R381
10K
L382
100nH
L363
100nH
C383
560P
R383
RES
+5R
C382
390P
C384
CAP
28.8MHZ
R361
0R
C317
101P
C834
101P
C835
101P C836
101P C837
101P C838
101P
C831
101P
C832
101P C833
101P
PR811
47K
PR812
1K
C853
101P
C856
392P
C850
104P
C857
105P
C852
221P
C858
221P
C855
333F
E854
4.7uF
R853
58K
R855
68K
R854
82K
R852
R-1
R858
2K2
R857
22K
L851
101T
D813
RED D814
GREEN
T813
DTC114EE
T814
DTC114EE
R814
560R
R815
4K7
R813
560R
C817
104P
T815
DTA114EE
R817
4K7
R816
10K
C818
104P
R818
4K7
A0
1
A1
2
GND
4
DA
5
CK
6
A2
3
WP
7
Vcc
8
U821
24C08
C827
103P
R827
10K
PC0
R834
8K2
C372
103P
C371
223P
R371
4K7
R375
4K7
R374
1K2
R373
2K7
R372
4K7
P
C
7
P
B
3
P
B
4
P
B
5
CR881
32.768KHz
C883
104P
C886
104P
R885
15K
R884
82K
R883
100K
L886
301T
C811
27P
C882
27P
T881
2SB624
R886
0R
C885
103P
R701
0R
C316
102P
L326
100nH
R387
39K
R392
120K
2SC3356
5C
R345
100K
C331
100P
R332
100R
C324
470P
R347
22R
C345
470P
C344
104P
R333
15K
C343
470P
L331
180nH
D332
1SV325
L332
180nH
L333
15nH
L336
22nH
L335
3.3uH
L347
100nH
D331
1SV325
D333
1SV278
C332
2P
C333
27P
D321
MA2S11
C335
11P
R321
4K7
C338
1P
C339
4P
C321
103P
C340
5P
C341
5P
C342
1P
T332
2SJ243
T352
UMC4
C351
100P
L351
270nH
D352
1SV325
L329
101T
R331
150R
C347
102P
T331
2SK508NV(K52)
T321
2SC4617(S)
R324
47K
C323
470P
C322
470P
R351
180R
L352
270nH
L353
18nH
L355
3.3uH
D351
1SV325
C352
2P
C353
33P
C355
15P
C359
5P
C360
7P
C361
10P
C362
1P
T351
2SK508NV(K52)
E323
10uF
L324
101T
R346
1K
MOD
5R
C272
33P
C284
104P
C285
221P
C286
221P
C287
10P
C288
471P
C276
27P
C278
104P
C275
104P
C274
104P
C280
103P E283
10uF
R285
180K
R287
3K9
R286
180K
R288
3K3
R276
27K
R274
1K2
R277
100K
R283
100R
O
S
C
in
1
D
e
c
6
F
IL
o
u
t
7
IF
o
u
t
1
1
IF
in
5
M
IX
in
1
6
A
F
o
u
t
9
R
S
S
I
1
2
Q
U
A
D
1
0
M
IX
o
u
t
3
O
S
C
o
u
t
2
F
IL
in
8
N
-d
e
t
1
3
N
-r
e
c
1
4
V
cc
4
G
N
D
1
5
U261
TA31136F
CR271
C28
T275
DTA114EE
C283
104P
C282
104P
R278
0R
C830
102P
R833
150K
R831
150K
R832
150K
5V
PB1
RXi
ATX
QT
D0
D1
D2
D3
PC7
PB3
PB4
HT1621-CS
GND_D
PC6
5V
PB1
PB5
SB
PC4
C854
103P
T
X
in
6
N
.C
.
7
R
X
in
1
1
V
b
ia
s
9
N
.C
.
1
0
V
ss
8
C539
120P
R539
100K
R540
100K
C540
104P
R527
22K
C527
150P
C526
223P C525
223P C524
104P
R528
100K
R529
22K
C528
120P
R866
10K
R867
10K
R864
3K3
R862
1K8
R865
20K
R863
100R
C867
104P
C862
332P
C863
470P
T461
2SK1824
C872 C871
R873
4K7
R872
4K7
R871 E871
in
G
n
d out
U906
5A
C907
103P E907
10uF
E905
10uF
C905
103P
C906
471P
5V
D/A
20
ATX
21
ARX
22
A
D
1
2
3
A
D
2
2
4
A
D
3
2
5
O
S
C
I
2
6
O
S
C
O
2
7
V
ss
2
8
R
e
se
t
3
2
V
d
d
3
3
PA0
34
PA1
35
PA2
36
PA3
37
PA4
38
PA5
39
PA6
40
PA7
41
PB0
42
PB1
43
PB2
44
P
C
0
1
P
C
1
2
P
C
2
3
P
C
3
4
P
C
4
5
P
C
5
6
P
C
6
7
P
C
7
8
P
B
3
9
P
B
4
1
0
P
B
5
1
1
P
D
3
3
1
P
D
1
2
9
P
D
2
3
0
AVdd
12
RXO
13
RXI
14
TXI
15
TXO
16
Tone
17
AVss
19
LC
18
U811
U-EM44
R868
4K7
R861
RES
R717
10K
C864
104P
C529
104P
5V
5CC
P-TX/RX
MOD
28.8MHZ
R322
100K
C281
102P
G
R
E
E
N
T
X
D
/R
E
D
R379
NC
R378
NC
N
/W
/L
D
C271
20P
CR272
21.250MHz
DEV
MIX IN
SQL
CV
1
2
3
4
5
6
7
8
9
10
11
12
13
18
17
16
15
14
JP811
JP18
GND_D
R304
100R
R713
100R
R714
100R
C304
NC
5V
5C 5C
R718
10K
MIC+
SP+
PTT/RXD
O I
FL261
450K
PC6
P
B
1
D0
D1
D2
D3
K1
K2
K3
K4
LCD CS
LAMP 2
LAMP 1
SB
S
B
(T.Y.)
(T.Y.)
(T.Y.)
(T.Y.)
B
E
E
P
VOUT
4
VDD
5
GND
3
SDA
1
RST
7
GND
6
OSC
2
SCL
8
U511
AUDIO
R548
680R C548
104P
C549
104P
R549
4K7
C547
103P
C546
104P
R546
330K
R545
10K
R702
0R
5M 5M
DQTo
C851
104P