Schematic Diagram - Front Board - Sony MHC-EC619iP Service Manual

5-11. SCHEMATIC DIAGRAM - FRONT Board -

1 2
FRONT BOARD
A
B
XS1 XS1
12 R14 R14
12
11 R16 R16
11
10 R58 R58
10
9 R17 R17
C
9
8
8
7 R19 R19
7
6 R20 R20
6
5
5
4 R22 R22
4
3 R24 R24
3
2
2
1
1
12PIN/2.0mm/180mm 12PIN/2.0mm/180mm
D
SW1 SW1
KEY1
<Description> <Description>
C13 C13
47pF/50V/NP0 47pF/50V/NP0 R44 R44
47K 47K
SW5 SW5
KEY2
<Description> <Description>
C17 C17
47pF/50V/NP0 47pF/50V/NP0 R48 R48
E
47K 47K
SW9 SW9
KEY3
<Description> <Description>
C21 C21
47pF/50V/NP0 47pF/50V/NP0 R52 R52
47K 47K
SW13 SW13
KEY4
<Description> <Description>
C25 C25
F 47pF/50V/NP0 47pF/50V/NP0 R55 R55
47K 47K
HCD-EC719iP/EC919iP
3 4
+5VA
R3 R3
10K 10K
NPN_3DG3904M NPN_3DG3904M
R9 R9 8.2K 8.2K
Q5 Q5
NPN_3DG3904M NPN_3DG3904M
C2 C2
3300pF/50V/X7R 3300pF/50V/X7R
STB_5V
IR1 IR1
1
IR
2
GND
R59 R59 R18 R18 3
VCC
4.7K 4.7K 4.7K 4.7K 4
GND
5
GND
IRM_10mm IRM_10mm
0 0 VFD_CLK
0 0 VFD_DATA
1K 1K POWER_KEY
0 0 VFD_CS
0 0 +12V
0 0 -24V
1K 1K IR
0 0 STB_5V
STB_5V
VR1 VR1
5 2
GND VOL-
4
GND
3 1
GND VOL+
ENCODER ENCODER
100pF/50V/NP0 100pF/50V/NP0
SW2 SW2
K1 KEY1 K2 KEY1
<Description> <Description>
C14 C14
47pF/50V/NP0 47pF/50V/NP0 R45 R45
47K 47K
SW6 SW6
KEY2 KEY2
<Description> <Description>
C18 C18
47pF/50V/NP0 47pF/50V/NP0 R49 R49
47K 47K
SW10 SW10
KEY3 KEY3
<Description> <Description>
C22 C22
47pF/50V/NP0 47pF/50V/NP0 R53 R53
47K 47K
SW14 SW14
KEY4 KEY4
<Description> <Description>
C26 C26
47pF/50V/NP0 47pF/50V/NP0 R56 R56
47K 47K
5 6
+12V AC2
R2 R2
R1 R1 0 0
470 470
+12VA
R5 R5
R4 R4 Q1 Q1 2.2 2.2
NPN_3DG3904M NPN_3DG3904M
Q2 Q2 470 470 AC1 R6 R6
C1 C1 0.1uF/50V/X7R 0.1uF/50V/X7R CE1 CE1 "3.3uF "3.3uF R7 R7 470 470 R8 R8 330/1% 330/1%
Q3 Q3
NPN_3DG3904M NPN_3DG3904M
R10 R10 4.7K 4.7K
Q4 Q4 ZD1 ZD1
PNP_3CG3906M PNP_3CG3906M BZX79C6V2 BZX79C6V2 R11 R11 CE2 CE2
R13 R13 10K 10K "3.3uF "3.3uF
R12 R12 10K 10K
1K 1K
-24V R15 R15 0 0
R21 R21
1K 1K
STB_5V
R29 R29
100 100
R26 R26 1K 1K
+12V
R27 R27 1K 1K
IR
C6 C6
ZD2 ZD2 C7 C7
CE3 CE3
+ +
C9 C9 BZX79C5V1 BZX79C5V1 4.7uF/16V/Y5V 4.7uF/16V/Y5V 0.1uF/50V/X7R 0.1uF/50V/X7R
47uF/16V 47uF/16V
C12 C12
0.1uF/25V/Y5V 0.1uF/25V/Y5V
47pF/50V/NP0 47pF/50V/NP0
+5VA
R31 R31
1K 1K
R30 R30 22 22 VOL-
VFD_DATA R41 R41 100 100
R40 R40 22 22 VOL+
VFD_CLK R42 R42 100 100
C10 C10 C11 C11
100pF/50V/NP0 100pF/50V/NP0 VFD_CS R43 R43 100 100
SW3 SW3 SW4 SW4
K3 KEY1
<Description> <Description> <Description> <Description>
C15 C15 C16 C16
47pF/50V/NP0 47pF/50V/NP0 R46 R46 47pF/50V/NP0 47pF/50V/NP0 R47 R47
47K 47K 47K 47K
SW7 SW7 SW8 SW8
KEY2
<Description> <Description> <Description> <Description>
C19 C19 C20 C20
47pF/50V/NP0 47pF/50V/NP0 R50 R50 47pF/50V/NP0 47pF/50V/NP0 R51 R51
47K 47K 47K 47K
SW11 SW11 SW12 SW12
POWER_KEY
<Description> <Description> <POWER ON/OFF> <POWER ON/OFF>
C23 C23
47pF/50V/NP0 47pF/50V/NP0 R54 R54
47K 47K C24 C24
100pF/50V/NP0 100pF/50V/NP0
SW15 SW15
<Description> <Description>
C27 C27
47pF/50V/NP0 47pF/50V/NP0 R57 R57
47K 47K
27 27
7 8 9
VFD1 VFD1
- -
AC2
5.6 5.6
-24V
U1 U1
34 22
G4 SEG8
35 21
G3 SEG7
36 20
G2 SEG6/K6
37 19
G1 SEG5/K5
+5VA 38 18
VDD SEG4/K4
39 17
DRIVER_VFD_CS6312EN DRIVER_VFD_CS6312EN
LED4 SEG3/K3
40 16
R28 R28
LED3 SEG2/K2
41 15 +5VA
51K 51K
LED2 SEG1/K1
42 14
LED1 VDD
43 13
GND KEY4
44 12
OSC KEY3
C8 C8
4.7uF/16V/Y5V 4.7uF/16V/Y5V
R32 R32 R33 R33
1K 1K 1K 1K R34 R34
4.7K 4.7K
+5VA
K4
KEY PART
HCD-EC719iP/EC919iP