Accuphase E-550 - VOLUME ASSY (716-0732-00); Volume Assembly Schematic Diagram; HEAD PHONE ASSY (716-0733-00); Head Phone Assembly Schematic Diagram

1
4
6
8
16
13
11
9
RELAY11
362-1212-00
D11
MA165
1
4
6
8
16
13
11
9
RELAY10
362-1212-00
D10
MA165
1
4
6
8
16
13
11
9
RELAY9
362-1212-00
D9
MA165
1
4
6
8
16
13
11
9
RELAY8
362-1212-00
D8
MA165
1
4
6
8
16
13
11
9
RELAY7
362-1212-00
D7
MA165
1
4
6
8
16
13
11
9
RELAY4
362-1212-00
D4
MA165
1
4
6
8
16
13
11
9
RELAY5
362-1212-00
D5
MA165
1
4
6
8
16
13
11
9
RELAY3
362-1212-00
D3
MA165
1
4
6
8
16
13
11
9
RELAY2
362-1212-00
D2
MA165
1
4
6
8
16
13
11
9
RELAY1
362-1212-00
D1
MA165
1A 1G 1B 5G 2A 2G 2B 3G 4G
JK4
302-0411-00
1A 1G 1B 5G 2A 2G 2B 3G 4G
JK3
302-0411-00
1A 1G 1B 5G 2A 2G 2B 3G 4G
JK2
302-0411-00
1A 1G 1B 5G 2A 2G 2B 3G 4G
JK1
302-0411-00
Lch Rch Lch Rch
TUNER CD
Lch Rch Lch Rch
LINE1 LINE2
100
R10
100
R9
100
R8
100
R7
100
R6
100
R5
100
R4
100
R3
TUNER CD LINE1 LINE2
BAL
1 2 3 4
K4
308-0407-00
1 2 3 4
K3
308-0417-00
to Bal Input Amp K4
BAL_L BAL_R LGND RGND Input_L LGND RGND Input_R
to Mother K14
47n
C1
S/M
REC OFF
1or2 2>1
1>2
100
R2
100
R1
Lch Rch Lch Rch
PLAY1 REC1
Lch Rch Lch Rch
PLAY2 REC2
12V 12V 12V 12V 12V 12V 12V 12V 12V 12V /1to2 /2to1 Tuner /CD /Line1 /Line2 /Bal Src/Mon /Recoff M1/M2
1
4
6
8
16
13
11
9
RELAY6
362-1212-00
D6
MA165
MONO
12V
/Mono
1 2 3 4
K1
308-0407-00
to Connecter Board
Src_L Src_R LGND RGND
12V Tuner /CD /Line1 /Line2 /Bal Src/Mon /Mono /Recoff M1/M2 /2to1 /1to2
12V /Line1 Tuner /CD /Line2 /Mono /Bal Src/Mon /Recoff /1to2 M1/M2 /2to1
to Mother K8
1 2 3 4 5 6 7 8 9
10 11 12
K2
308-1206-00
K1(11-14)
-
2
5
-
I O R E L A Y A S S ' Y ( 7 1 6 - 0 7 3 1 - 0 0 )
D1
S1ZB20
0.47
R1
10W
3.3
R2
10W
3.3
R3
10W
3.3
R5
10W
3.3
R4
2.2
R7
2.2
R6
1C
1A
1B
FH1
306-2001-00
1C
1A
1B
FH2
306-2001-00
to pow SW
to AC in
J5 J3
J4
to AC outlet
1
2
3
4
K5
308-0432-00
1
2
3
4
K3
308-0432-00
1
2
3
4
K1
308-0432-00
Assy No. Voltage Fuse
716-0728-01 100V T10A L250V
716-0728-02
220-240V
T5A L250V
!
!
!
!
!
!
!
!
! !
! ! !
! ! !
(L)
(N)
!
Attention mark indicating critical components for safety.
Replacement must be made with identical parts of specified part number.
3
14
2
RELAY1
362-4102-00
33u
50V
C2
K8
314-0536-00
K9
314-0536-00
K7
314-0536-00
120V
716-0728-03
K1,2 K3,4 K5,6
1
2
3
4
K6
308-0433-00
1
2
3
4
K4
308-0433-00
1
2
3
4
K2
308-0433-00
J1
J1 J3 J4 J5
T10A L250V
!
Destination table
47n
C1
I N - R U S H P R O T E C T O R A S S ' Y
D t y p e
U / T t y p e
E t y p e ( 7 1 6 - 0 7 2 8 - 0 3 )
3A
2A
1A
1B
2B
3B
1C2C
10kB
VR1
575-2026-00
1
2
3
4
5
K1
308-0508-00
VRGND
VRCNTS
VRVCC
VR+
VR-
to Mother K11(1-5)
V O L U M E A S S ' Y
12
S1
354-1118-00
1 2
K1
308-0206-00
to Switch K5
Phone_R Phone_L
to Mother_K11(6,7,8)
R L G
JK1
302-1204-00
/SCAN1'
/RET0'
GND
1 2 3
K2
308-0311-00
( 7 1 6 - 0 7 3 3 - 0 0 )
H E A D P H O N E A S S ' Y
1
2
3 4
5
6
7
8
910
11
12
13 1415
16
S1
339-0002-00
1 2 3 4
K1
280-9004-00
/SEL_C /SEL_B /SEL_A
to Logic K1
I N P U T S E L E C T O R A S S ' Y
( 7 1 6 - 0 7 3 4 - 0 0 )
( 7 1 6 - 0 7 3 2 - 0 0 )
( 7 1 6 - 0 7 2 8 - 0 1 )
( 7 1 6 - 0 7 2 8 - 0 2 )