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List of mounted parts
Part
number
Circuit
number
Part
name
Rating
Quantity
1
U3 3-terminal regulator
LP2950-33LPRE3 1
2
U1 Operational amplifier
TL072IP 1
3
U1S
Operational amplifier
socket
6pin Socket 1
4
Q1, Q2 J-FET
2SK303L-V3-T92-K 2
5
D1 Schottky barrier diode
1S30(R-1) 1
6
ZD1 Zener diode
GDZJ4.7C 1
7
C2 Film capacitor 0.01μF
1
8
C6, C9A Film capacitor 0.1μF
1
9
C4, C11,
C15A,
C22
Film capacitor 1μF
4
10
C8A,
C15B
Film capacitor 0.047μF
1
11
C5 Ceramic capacitor 0.01μF 1
12
C14, C17,
C20, C21
Ceramic capacitor 0.1μF 4
13
C10, C25 Ceramic capacitor 0.1μF 1
14
C24 Electrolytic capacitor 47μF/16V over 1
15
C1, C12,
C23
Electrolytic capacitor 100μF/16V over 4
16
C18 Electrolytic capacitor 220μF/10V over 2
17
C3, C13 Electrolytic capacitor 330μF/25V over 2
Part
number
Circuit
number
Part
name
Rating
Quantity
18
L1, L2 Inductor WBRH-3.5x5x0.8-U3.7x10 2
19
R20 Resistor 0Ω 1
20
R2 Resistor 10Ω 1
21
R3 Resistor 100Ω 1
22
R18 Resistor 1kΩ 1
23
R4, R5,
R6, R16
Resistor 10kΩ 4
24
R14 Resistor 100kΩ 1
25
R11
Resistor 150kΩ 3
26
R26 Resistor 220kΩ 2
27
R17 Resistor 75Ω 2
28
R1, R7 Resistor 2MΩ 2
29
R15, R27 Resistor 2.4kΩ 2
30
R13, R25 Resistor 33kΩ 2
31
R10A Resistor 4.7kΩ 1
32
R9 Resistor 51kΩ 1
33
R12 Resistor 6.8kΩ 1
34
CN7B Board-in harness 6 1
35
CN7A Connectors
B6B-PH-K-S
1
36
CN1, CN2 Connectors
B8B-ZR-3. 4
2
37
CON1 DC jack LD-0202AH-2.0-03A 1
38
J1, J2 Phone jack
LJB0664-6
2
39
SW2 Dip switch IS-2235-G 1