Schematic Diagram - Vfd Board - Sony HCD-S20 Service Manual

6-15. SCHEMATIC DIAGRAM - VFD Board -

1
VFD BOARD
A
XS2 XS2
12PIN/2.0MM/220mm 12PIN/2.0MM/220mm
12
12
11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
3PIN/2.0mm/80mm 3PIN/2.0mm/80mm
3
3
XS3 XS3 2
2
1
1
B
IR1 IR1
1 IR
IR
2
GND
3
VCC
4
C GND C5 C5
5
C4 C4
GND
0.1uF/50V/X7R 0.1uF/50V/X7R
IR_10mm IR_10mm 47pF/50V/NP0 47pF/50V/NP0
HCD-S20
2 3
VFD_CLK
VFD_DATA
VFD_CS
+12V
-24V
IR
IR_5V
ADC_KEY2
ADC_KEY1
IR_5V
R32 R32
R33 R33
470 470
4.7K 4.7K
CE4 CE4
+ +
47uF/10V 47uF/10V
4 5
+12V
R2 R2
R1 R1 0 0
470 470
+5VA
+12VA
R3 R3
10K 10K R4 R4 Q1 Q1
Q2 Q2 470 470 NPN_3DG3904M NPN_3DG3904M
NPN_3DG3904M NPN_3DG3904M
C1 C1 0.1uF/50V/X7R 0.1uF/50V/X7R CE1 CE1
Q3 Q3
NPN_3DG3904M NPN_3DG3904M
R9 R9 18K 18K R10 R10 4.7K 4.7K
Q4 Q4
PNP_3CG3906M PNP_3CG3906M
Q5 Q5 R13 R13
R12 R12 10K 10K
NPN_3DG3904M NPN_3DG3904M 1K 1K
C2 C2
1000pF/50V/X7R 1000pF/50V/X7R
R15 R15
1K 1K
31 31
6 7
AC2 VFD135 VFD135
- -
R5 R5
2.2 2.2
AC1 R6 R6 5.6 5.6
3.3uF/50V 3.3uF/50V R7 R7 470 470 R8 R8 330/1% 330/1%
ZD1 ZD1
BZX79C6V2 BZX79C6V2 R11 R11 CE2 CE2
10K 10K 3.3uF/50V 3.3uF/50V
-24V
R14 R14 0 0
R39 R39 1K 1K
+12V R16 R16 1K 1K +5VA
R17 R17
51K 51K
C3 C3
ZD2 ZD2 C6 C6
BZX79C5V1 BZX79C5V1 4.7uF/16V/Y5V 4.7uF/16V/Y5V 0.1uF/50V/X7R 0.1uF/50V/X7R
+5VA
R18 R18 R19 R19 R20 R20
10K 10K 10K 10K 10K 10K
VFD_DATA
R25 R25 100 100
VFD_CLK R27 R27 100 100
VFD_CS R28 R28 100 100
HCD-S20
8
AC2
-24V
U135 U135
34 22
G4 SEG8
35 21
G3 SEG7
36 20
G2 SEG6/K6
37 19
G1 SEG5/K5
38 18
VDD SEG4/K4
39 DRIVER_VFD_CS6312EN DRIVER_VFD_CS6312EN 17
LED4 SEG3/K3
40 16
LED3 SEG2/K2
41 15 +5VA
LED2 SEG1/K1
42 14
LED1 VDD
43 13
GND KEY4
44 12
OSC KEY3
C7 C7
4.7uF/16V/Y5V 4.7uF/16V/Y5V
R22 R22
4.7K 4.7K
+5VA