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Decoder Board -- Circuit Diagram 6
18V_IN
L70 FB_0349
C138
R255
4.7K
NS/100nF
CB94
+
+
0.1uF
CE52
DRBOM
220u/25V
MCU3.3V
ECO_POWER
R256
10k
18V_IN
+
+ CE49
220u/25V
GND
5
ECO_POWER
C142 10uF
U17
AP1538/SOP-8
SOP8/SMD
L71 47UH-3A
4
6
Vcc
O/P
5
O/P
C139
R254
24.9k-1%
NS/100nF
3
1
OCSET
FB
R253
4.7K-1%
D25
R260 0
SK34
CB93
0.1uF
0.8 x (1+24.9K/4.7K) = 5.04V Low ESR <125 mOHM
MCU3.3V/IP5V
IP5V
R259
0R
2
1
J8
NC/CON2.0-2
IP_GND
A18V
Q35
CES2307
SOT23A
2
3
R249
47K
R250
1K
R251 10K
Q25
1
BS3904
R252
22K
GND
12-13
MCU3.3V/IP5V
R229 0R
U14
NC/HT7333
18V_IN
2
3
IN
OUT1
R246
470 1/2W
+
+
SOT89
CE41
100u/16V
L59
EJS89J2010
5V
L66 DCR 33R
R233
47K
C142
C140
+ CE53
+
10u/10V
0.1uF
220u/10V
L69 DCR 33R
R238
47K
1
2
3
4
ECO_POWER
5
CON5
CON2.5-5
CON2.54-5
MCU3.3V
+ +
C134
0.1uF
SOT23A
VCC
CES2307
Q34
2
3
+ CE40
+
100u/10V
P_GND
R234
1K
R235 10K
Q23
1
DVD_ON
5
BS3904
R236
22K
P_GND
P_GND
R247
0
M5V
SOT23A
2
3
CES2307
Q33
+
+ CE45
R239
33K
100u/10V
P_GND
R240
1K
R241 4.7K
Q30
1
ECO_POWER
BS3904
R242
22K
P_GND
P_GND
18V_IN
TP44
TP45
MCU3.3V/IP5V
IP_GND
TP46
TP52
L65
FB/100R
GND
12-13
M3.3V
U16
AMS1117-3.3
3
2
IN
OUT1
M3.3V
4
OUT2
SOT223
+
+
C137
CE46
0.1uF
220uF/16v
5
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