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R7
R8
R9
R10
10k
10k
10k
10k
10k
10k
10k
RV2
RV3
RV1
C16
C15
C20
C21
0.1uF
0.1uF
0.1uF
0.1uF
WHITE R
WHITE B
BLACK R
GND
RM-B750
I
J
+5V
FB1
IC2
TC74VHC238FT(EL)
16
15
LEDL0
1
VCC
LPAD0
A
Y0
LEDL1
2
14
LPAD1
B
Y1
LEDL2
3
13
LPAD2
C
Y2
12
LPAD3
Y3
6
11
G1
Y4
4
10
G2A
Y5
LEDL3
5
9
G2B
Y6
7
Y7
GND
C11
0.1uF
8
GND
+5V
FB2
16
1
VCC
15
SWAD0
SWL0
A
Y0
2
14
SWAD1
SWL1
B
Y1
3
13
SWAD2
SWL2
C
Y2
12
SWAD3
Y3
6
11
G1
Y4
4
10
G2A
Y5
5
9
SWL3
G2B
Y6
7
Y7
GND
C10
IC3
0.1uF
8
TC74VHC238FT(EL)
GND
+5V-A
L5
10uH
R12
R14
10k
10k
10k
10k
C26
10k
22uF
RV4
RV5
RV6
C24
C25
0.1uF
0.1uF
BLACK B
BLACK M
IRIS
F-GND
K
VR-277 (1/2)
VR-277 (1/2)
SUFFIX: -13
SUFFIX: -13
CN3
TO LED-385
LEDOUT0
LEDOUT0
25
LEDOUT1
LEDOUT1
24
LEDOUT2
LEDOUT2
23
LEDOUT3
LEDOUT3
22
LEDOUT4
LEDOUT4
21
LEDOUT5
LEDOUT5
20
LEDOUT6
LEDOUT6
19
LPAD0
LPAD 0
18
LPAD1
LPAD 1
17
LPAD2
LPAD 2
16
PWM2
15
SWAD0
SWAD 0
14
SWAD1
SWAD 1
13
SWAD2
SWAD 2
12
SDIN0
SDIN 0
11
SDIN1
SDIN 1
10
SDIN2
SDIN 2
9
SDIN3
SDIN 3
8
SDIN4
+5V
SDIN 4
7
SDIN5
SDIN 5
6
+3.3V
5
+3.3V(LED)
4
+3.3V(LED)
3
GND
2
GND
1
GND
+3.3V
RB17
RB18
10k
10k
IC5 (1/7)
74VHC04MTCX
IC5 (2/7)
LCD_RE1
RB19
74VHC04MTCX
EN1
100
A 2
1
2
1
2
B 3
3
4
3
4
C 1
5
6
5
6
9
8
C32
7
8
4
5
0.022uF
IC5 (3/7)
74VHC04MTCX
IC5 (4/7)
C33
0.022uF
74VHC04MTCX
LCD_RE2
EN2
A 2
IC5 (5/7)
B 3
74VHC04MTCX
1
IC5(6/7)
C
74VHC04MTCX
RB20
C34
4
5
100
0.022uF
1
2
11
10
3
4
13
12
C35
5
6
1
2
0.022uF
7
8
3
4
LCD_RE3
EN3
2
IC6 (1/7)
A
74VHC04MTCX
3
B
C 1
IC6(2/7)
74VHC04MTCX
C36
4
5
0.022uF
C37
0.022uF
LCD_RE4
EN4
A 2
B 3
C 1
C38
C39
4
5
0.022uF
0.022uF
IC6 (3/7)
74VHC04MTCX
IC6(4/7)
74VHC04MTCX
R17
100
5
6
9
8
R18
100
11
10
13
12
IC6 (5/7)
74VHC04MTCX
GND
GND
IC6(6/7)
F-GND
74VHC04MTCX
6-11 (a)
6-11 (a)
L
M
TO LED-389
CN4
LEDOUT0
LEDOUT0
1
LEDOUT1
LEDOUT1
2
LEDOUT2
LEDOUT2
3
LEDOUT3
LEDOUT3
4
LEDOUT4
LEDOUT4
5
LEDOUT5
LEDOUT5
6
LEDOUT6
LEDOUT6
7
LEDOUT7
LEDOUT7
8
LPAD3
LPAD 3
9
10
PWM2
11
SWAD3
SWAD 3
12
13
14
SDIN0
SDIN 0
15
SDIN1
SDIN 1
16
SDIN2
SDIN 2
17
SDIN3
SDIN 3
18
SDIN4
SDIN 4
19
+5V
20
+3.3V
21
+3.3V(LED)
22
+3.3V(LED)
23
GND
24
GND
25
GND
PAINT_A0
PAINT_B0
PAINT_A1
IC6(7/7)
IC5(7/7)
PAINT_B1
74VHC04MTCX
74VHC04MTCX
+3.3V
+3.3V
VCC
VCC
C27
C28
0.1uF
GND
0.1uF
GND
PAINT_A2
GND
GND
PAINT_B2
PAINT_A3
PAINT_B3
PAINT_A4
PAINT_B4
PAINT_RE
N
O
1
2
3
4
5
VR-277 (1/2)
BOARD NO. 1-685-848-13
RM-B750_VR-277_013_1
P
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