Accuphase E-550 - E-550 MASTER CIRCUIT DIAGRAM; Master Circuit Block Diagram

N
(W)
AC100/120/230V
50/60Hz
(W)
N
ORG
RED
GRY
YEL
BRN
WHT
RED
BLK
ORG
YEL
510-3027-00
RED
0V
100V
117V
0V
100V
117V
GRN
YEL
ORG
BRN
VIO
GRY
GRN
AC100V ONLY
D001
S15VB20
K7
K1
K2
K3
K4
K5
K6
K9
K8
716-0728-01,02,03
Inrush Ass'y
K1
K4
K2
K16
K3
K18
K17
K14
K8
K15
K7
K13
K11 K12
K9
K10
K5 K6
716-0729-00
Motherboard Ass'y
K2
K1
K3
K4
721-0081-00
Logic Ass'y
K1 K2
713-0013-00
VI Ass'y(R)
K1 K2
713-0014-00
IV Ass'y
K1 K2
713-0013-00
VI Ass'y(L)
K4
K1
K5
716-0730-00
Switch Ass'y
K1
723-0116-00
Display Ass'y
K1
721-0082-00
Receiver Ass'y
K1
716-0732-00
Volume Ass'y
K1
K2
K3
K4
712-0097-00
Balance input Ass'y
K2
K1
K4
K3
716-0731-00
IOrelay Ass'y
K1
716-0734-00
Input selector Ass'y
K1
K2
716-0733-00
Headphone Ass'y
K2
K3
K1
716-0735-00
Connector board Ass'y
K1
723-0118-00
Selector LED Ass'y
K1
K2
K3 K4
719-0058-00
Power supply Ass'y
K1
K2
K3
K4
K5
K6
P1
P2
P3
P4
P5
P6
720-0075-00
Protection Ass'y
K1
K2 K3
717-0087-00
Power Amp Ass'y(R)
K1
K2 K3
717-0087-00
Power Amp Ass'y(L)
K1
K2
K3
K4
723-0117-00
Meter lamp Ass'y
Lch METER
+-
Rch METER
+-
2 1
S001
2W
10
R001
* H2
* H1
BLU
VIO
BLU
TH001
421-0003-00
SPA(Lch)
SPA(Rch)
SPB(Lch)
SPB(Rch)
LGND
RGND
Speakers
* H1,H2 should be connected to:
100V 120V 220~240V
K6 K4 K2
K5 K3 K1
H1
H2
Option Board 1
Option Board 2
!
! !!
!
!
Attention mark indicating critical components for safety.
Replacement must be made with identical parts of specified part number.
!
!
Mounted on
Mother Board
Mounted on
Mother Board
Mounted on
Mother Board
Mounted on
Mother Board
GRN
YEL
BLK
GRY
BLU
ORG
GRY BLK GRY BLK
BRN
BLU
BLU
BRN
WHT
Power Transformer
T001
E - 5 5 0 M A S T E R C I R C U I T D I A G R A M
-
2
1
-