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CIRCUIT DIAGRAM
KEP-539 - 541(1) POWER,VOLUME,HEADPHONE
1
2
3
4
KEP‑539
POWER
A
C52
1
100UF/25V
Low ESR
2
B
REF1
(1‑9I)
12V
(1‑9C)
(1‑11D)
(1‑5I)
Q10
78M12
2SC5343
C
1
2
3
OUT
●
●
●
GND
2
3
1
1
1
2
1
C
6
0
1
0
4
C
1
2
2
2
1
2
1
●
●
D
5V
1
●
CN12
E
B2P‑VH
1
+5V
1
GND
2
2
●
F
5G
KEP‑540
VOLUME
G
H
CN17
S4B‑PH‑K‑S
1
+5V
GND
2
+5V
3
I
VOL
4
5
●
6
J
KEP‑542 - 544(1) JACK,INLET, LED
1
2
3
4
KEP‑542
JACK
A
5V
1
CN19
B
B2B‑PH‑K‑S
2
LED
1
GND
2
5G
C
D
5V
5V
●
CN20
1
B5B‑PH‑K‑S
2
1
E
DG
2
2
+5V
5G
1
MIN
3
●
MOUT
4
NC
5
●
1
2
F
5G
FG
T4
G
EARTH‑LAND
1
FG
H
L12
JP05 X 2
2
1
JA4
I
YKB21‑5101A
S
1
7
TC2
2
●
6
B2
3
R
1
2
L
L13
B1
4
JP05 X 2
TC1
5
J
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5
6
7
8
U7
C53
LT1054CP
470UF/25V
1
FB/SHDN
V+
8
1
●
2
CAP+
OSC
7
R68
223R
3
6
1
2
GND
Vref
●
2
R69
224R
4
5
1
2
CAP‑
Vout
●
●
C54
222C FILM
‑12V
1
2
2
1
2
2
●
C55
L1
1000UF/16V
47UH
1
●
●
1
U8
IN
1
●
CN13
B4P‑VH
2
1
+15V
●
2
1
2
●
+15V
2
●
C
6
1
PGND
3
1
0
4
C
PGND
4
1
●
C62
2200UF 25V
TO KEP‑276 CN4
2
●
●
1
4
U9
L2
SI‑8008
47UH
OUT
IN
2
2
1
●
S.S
GND
Vos
2
2
5
3
4
2
3
R73
1
1
2
●
●
●
T1
2701R
1
1
EARTH‑LAND
C66
2
1000UF/25V
R74
1
2
●
2
2701R
C65
1
104C/50V
1
●
2
●
R75
1001R
1
●
●
●
1
FG
C64
JP05
2
FG
KEP‑541
VR1
RK09L12B0
3
6
8
7
1
2
4
5
●
●
●
1
2
●
5
6
7
8
5V
U10
PC900V
R85
6
1
●
VCC
A
●
2
5
2
2
GND
K
D4
4
3
V0
NC
1SS133
R86
1
1
●
●
R83
101R
5V
1
2
2
5G
C83
102C/50V
2
1
C84
102C/50V
1
2
1
5V
R84
101R
2
5V
C93
470C/50V
2
1
2
3
●
1
2
1
1
5G
2
3
●
5G
1
5G
R87
101R
3
1
2
●
●
1
2
C85
4
102C/50V
2
1
●
●
●
1
2
C86
3
102C/50V
2
1
4
1
2
●
R88
1
101R
2
FG
– 61 –
9
10
11
12
CN14
B2B‑PH‑K‑S
1
SW1
2
SW2
15V
Q11
2SJ649
2
3
●
●
●
1
1
2
2
●
●
Q12
Q13
2
2
DTC143ES
DTC143ES
3
3
●
●
●
1
1
1
1
1
●
2
2
●
●
●
●
●
2
2
1
1
R77
2
103R
3
●
1
2
Q14
2SC5343Y
1
5G
HEADPHONE
CN18
S7B‑PH‑K‑S
1
HPR
●
2
AGND
●
HPL
3
●
HPIN
4
●
FG
5
6
2
2
FG
●
7
FG
●
1
1
FG
9
10
11
12
JA3
YKF51‑5053
1
8
1
7
●
101R
1
2
●
6
14
C82
9
1
2
7
101R
10
1
2
●
8
13
L9
101R
●
1
2
●
1
12
L10
JP
4
1
2
●
2
L11
101R
5
●
1
2
●
3
11
●
●
1
6
1
5
FG
YKB21‑5101A
L14
TC1
5
JP05*2
2
B1
1
4
4
●
●
C91
2
L
2
102C/50V
2
3
R
3
●
●
1
B2
6
1
●
●
TC2
7
2
1
S
1
4
1
●
●
●
●
C92
102C/50V
1
2
3
●
●
2
L15
JP05*2
1
2
FG
●
●
FG
13
14
15
16
CN15
B3P‑VH
L4
D2
10UH
SF5S4
1
2
1
2
+15V
●
3
1
NC
2
GND
1
2
1
2
●
D3
JP05
●
CN16
B3B‑PH‑K‑S
1
NC
2
SWIN
3
KEEP
JA1
YKB21‑5101A
TC1
5
L5
B1
4
SBT0160W
L
1
4
2
●
2
R
3
C75
B2
102C/50V
6
2
3
TC2
1
7
●
●
1
S
C76
1
4
1
●
102C/50V
2
2
3
●
L6
SBT0160W
JA2
●
YKB21‑5101A
TC1
5
L7
B1
4
SBT0160W
L
2
●
1
4
2
R
3
C77
102C/50V
B2
2
3
6
TC2
1
7
●
●
●
●
1
S
1
C78
1
4
●
102C/50V
2
2
3
●
L8
SBT0160W
T2
EARTH‑LAND
1
FG
13
14
15
16
KEP‑543
INLET
JA6
LGP7031
C94
‑1200C
CN22
104C/50V
DC‑JACK
B3PS‑VH
●
1
1
+15V
1
3
NC
3
3
2
GND
2
2
1
2
●
●
KEP‑544
LED
LED1
KT2P11‑81‑S13
RED
CN23
S2B‑PH‑K‑S
1
1
LED
2
GND
2
JA5
CN21
B8B‑PH‑K‑S
1
SOR
2
AGND
3
SOL
4
SIR
5
AGND
6
SIL
7
AGND
8
FGND
+
‑
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