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+5V +5V

GND2




SOLEN_PLAY
SOLEN_R/P
MODE_SWA


MODE_SWB


REC_SW
R1929




R1930
10K




10K
-VFD



FIL_A



FIL_B


GND


+5V

+12V GND




15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
36
37
38
39
40
41
42
43
44
R1915
+12V

120K

CN1903 31 25 20 15 10 5 1




D1903


SK-107
Q1909 +5V
6




R1925
BC327/25




4K7
REC_SW
5 VFD801

SOL_A
4
R1913 VFD DISPLAY




180uH
L801
GND
3
4K7
R1923 Q1907
SEN_A
2 +5V BC846B
330R R1917
ANO_A
1
R1921 150K




R1919
2K2




2K2
PULSE_R/P




100R

100R

100R

100R




1K

1K

1K

1K
+12V

Q1911
BC846B R1916




R832

R831

R830

R829




R825

R824

R823

R822
CN1904
120K
D1902


SK-107

6 39 38 37 36 35 34 33 32 31 30 29 28 27




Vee


Vdd
Grid7


Grid8
5 Q1910 R834 100R 220R R821
40 26




Seg20/Grid9


Seg19/Grid10




Seg18/Grid11


Seg17/Grid12


Seg16/Grid13
Grid5 Seg12/KS12
BC327/25




R1931
SOL_B




4K7
R835 100R 41 25 220R R820
4 Grid4 Seg11/KS11

GND R836 100R 42 24 220R R819
Grid3 Seg10/KS10




Grid6
3
R1924 R837 100R 43 23 220R R818
ANO_B Grid2 Seg9/KS9
R1914
2 +5V
R838 100R 44 22 220R R817
330R R1918 Grid1 Seg8/KS8
SEN_B 4K7
1 45 21 220R R816
Q1908