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HA-W500RF (EG)/(EK)
4.Print Circuit Board
Receiver (Headphones)
MAIN P.C.BOARD
TOP
Surface
Receiver (Headphones)
MAIN P.C.B. LOCATION
Symbol
Location
ICs
IC2
2B
IC3
2A
IC4
CHG.PCB
IC5
CHG.PCB
Transistors
Q6
CHG.PCB
Q7
CHG.PCB
Q8
CHG.PCB
Filters
X2
3C
X3
2B
Diodes
D2
CHG.PCB
D3
CHG.PCB
D4
CHG.PCB
Resistors
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
6 (No.70270)
D
C
B
A
Symbol
Location
Symbol
Resistors
Resistors
R11
1B
R37
R12
R38
R13
CHG.PCB
R39
R14
2B
R40
R15
3B
R41
R16
3B
R42
R17
R43
R18
CHG.PCB
R44
R19
2A
R45
R20
2A
R46
R21
2A
R47
R22
3A
R48
R23
2A
R49
R24
3D
R50
R25
4C
VR1
R26
4C
VR2
R27
4C
VR3
R28
VR4
R29
4C
VR5
R30
3D
JP1
R31
3C
JP2
R32
2B
JP3
R33
2B
JP4
Capacitors
R34
2B
R35
CHG.PCB
C21
R36
CHG.PCB
C22
shows the B(+) power supply
shows the ground
shows others.
1
2
Back side
Location
Symbol
Location
Capacitors
CHG.PCB
C23
1C
CHG.PCB
C24
1C
CHG.PCB
C25
1B
CHG.PCB
C26
3B
CHG.PCB
C27
3B
CHG.PCB
C28
2B
CHG.PCB
C29
3B
CHG.PCB
C30
3C
CHG.PCB
C31
1B
CHG.PCB
C32
2B
CHG.PCB
C33
3B
C34
3B
C35
3B
C36
3A
3A
C37
3A
4B
C38
2A
4C
C39
3D
4C
C40
1B
C41
C42
2D
1C
C43
2D
3D
C44
4D
3D
C45
4C
C46
3C
1B
C47
4B
2C
C48
3D
3
4
Symbol
Location
Capacitors
C49
2B
C50
C51
C52
C53
2C
C54
3B
C55
3A
C59
CHG.PCB
C60
CHG.PCB
C61
CHG.PCB
C72
2A
C73
3A
C74
2A
Coils
T1
1B
T2
2C
L8
2C
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