Accuphase C-2810, Service Information, Page: 27 / 38

1A
1B
2A
2B
3A
3B
4A
4B
5A
5B
6A
6B
7A
7B
8A
8B
9A
9B
10A
10B
11A
11B
12A
12B
13A
13B
14A
14B
15A
15B
16A
16B
K1
308-3203-00
Input(+)
AGND
+15V
AGND
-15V
AGND
)
Output
-15V
+15V
Input(-)
D3
1SS387
220k
R28
Input(-)
Input(+)
-EL
Q9
2SA1175_
-EL
Q13
2SC2785_
220k
R42
Q14
Q10
30k
R33
10
R34
10
R37
30k
R41
Q11
Q15
D4
1SS387
360
R29
360
R43
Q16
Q12
10
R35
10
R38
-15V
+15V
39u
25V
C10
39u
25V
C13
330
R36
2.2n
C12
100u
16V
C11
1M
R39
100k
R30
1k
R31
100p
C9
x4
x4
D5
1SS387
220k
R46
-EL
Q17
2SA1175_
-EL
Q21
2SC2785_
220k
R60
Q22
Q18
30k
R51
10
R52
10
R55
30k
R59
Q19
Q23
D6
1SS387
360
R47
360
R61
Q24
Q20
10
R53
10
R56
-15V
+15V
39u
25V
C15
39u
25V
C20
330
R54
2.2n
C18
100u
16V
C17
1M
R57
100k
R48
1k
R49
100p
C14
x4
x4
Input-
Input+
D2
1SS387
220k
R26
-EL
Q8
2SA1175_
-EL
Q4
2SC2785_
220k
R3
Q3
Q7
30k
R23
10
R13
10
R9
30k
R4
Q6
Q2
D1
1SS387
360
R25
360
R2
Q1
Q5
10
R11
10
R8
-15V
+15V
39u
25V
C8
39u
25V
C1
2.2n
C5
x4
x4
226F
R5
226F
R12
1n
C2
1n
C6
10u
50V
C4
10k
R7
47
R10
-15V
+15V
10k
R19
10k
R18
10k
R17
10k
R20
10u
25V
C3
10u
25V
C7
100u
25V
C16
100u
25V
C19
AGND
220G
R15
220G
R16
1
8
2
3
4
IC1A
UPC4570G2
7
6
5
IC1B
UPC4570G2
10
R40
10
R14
10
R50
10
R6
10
R58
10
R32
22
R45
22
R22
22
R62
22
R21
22
R27
22
R24
22
R44
22
R1
C - 2 8 1 0 R E C O R D I N G A M P A S S ' Y ( 7 1 2 - 0 1 0 0 - 0 0 )
- 26 -
from MOTHER
K23 or K24
0V
0V
100V
120V
230V
100V
120V
230V
0V
100V
0V
120V
0V
230V
! ! !
!
Attention mark indicating critical components for safety.
Replacement must be made with identical parts of specified part number.
CAUTION
1
3
K5
308-0236-00
1
3
K4
308-0236-00
1
3
K3
308-0236-00
1
2
3
4
K2
308-0432-00
1
2
3
4
K1
308-0432-00
10n
C3
10n
C2
10n
C1
/PHONE_SW
DGND
AGND
RCH
LCH
6
5
4
3
2
7
8
9
1
JK1
302-1205-00
1
2
3
4
5
K1
308-0508-00
309-5157-04
K2
from MOTHER K26
H E A D P H O N E A S S ' Y
V O L T A G E S E L E C T O R A S S ' Y
( 7 1 6 - 0 7 5 4 - 0 0 ) ( 7 1 6 - 0 7 5 7 - 0 0 )
LED_3
LED_2
LED_1
/LED_C
/LED_B
/LED_A
LINE_BAL
LINE1
LINE2
LINE3
AD1
AD2
TUNER
CD
CD_BAL
D4
BR1111R-B/C/D/E
D3
BR1111R-B/C/D/E
D2
BR1111R-B/C/D/E
D1
BR1111R-B/C/D/E
D5
BR1111R-B/C/D/E
D6
BR1111R-B/C/D/E
D7
BR1111R-B/C/D/E
D8
BR1111R-B/C/D/E
D9
BR1111R-B/C/D/E
1
2
3
4
5
6
K1
280-9006-00
560
R1
560
R3
560
R2
from LOGIC K1
S E L E C T O R L E D A S S ' Y ( 7 2 3 - 0 1 2 6 - 0 0 )
/SEL_A /SEL_B /SEL_C DGND
1
2
3 4
5
6
7
8
9
10
11
12
13 14
15 16
S1
339-0002-00
309-3408-04
1 2 3 4
K1
from LOGIC K1
I N P U T S E L E C T O R A S S ' Y
( 7 1 6 - 0 7 5 8 - 0 0 )