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9 - 3
COMBI BOARD - CIRCUIT DIAGRAM
PART 3
+A-ON
+A-ON
7400
1
In
Out
T401
+A-ON
L7805CP
+
6400
1N4148
T400
AGND
+A-ON
+A-ON
T461
3460
+A-ON
0R&
+5C-ON
+5C-ON
T462
3462
+5C-ON
220R
T460
M_GND
M_GND
+VCC3
+VCC3
T488
+VCC3
T489
DGND
+B-ON
+B-ON
3
T402
T421
+B-ON
+5V-ON
+
T420
AGND
6471
1N4148
+
+
7462
BC847B
+
M_GND
M_GND
+SR_1V8
+SR_1V8
5488
Bead&
T499
PBSS4140T
+SR_1V8
3487
7489
+1.78V
10R&
3488
+
330R
+5V-ON
+5V-ON
7420
LM317P
3
2
Vin Vout
+
+
2432
10u/50
+SR_M
+SR_M
+VCC3
T471
T481
+SR_M
+VCC3
T480
SR_GND
M_GND
+VCC3
T483
+VCC3
T484
DGND
9 - 3
+3.0V
+2.3V
+VCC3
+VCC3
+VCC25
+VCC3
T431
6425
+VCC3
1N4003GP
2421
+
+VCC25
2435
100n
100u/10
T432
+VCC25
T430
DGND
+VCC3
+SR_A3V
5481
0R&
+
On this version 0.4
PCB
Layout, 5481 is
BEAD, now change to
RES 0R, Next version
the
label
should be
SR_GND
SR_GND
modified.
+VCC3
+SR_D3V
5483
0R&
+
On this version 0.4
PCB
Layout, 5483 is
BEAD, now change to
RES 0R, Next version
the
label
should be
modified.
+SR_A3V
T491
+SR_A3V
+SR_D3V
T493
+SR_D3V
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