Block Diagram - Yamaha WXA-50 Service Manual

A B
WXA-50/WXC-50
■ BLOCK DIAGRAMS
1
AC IN
MAIN (2)
2
• See page 49 →
WXA-50:
SCHEMATIC DIAGRAM
• See page 52 →
WXC-50:
Remote in
SCHEMATIC DIAGRAM
Trigger I/O
THM
CB601, 602
3
10 5
SDN PHI
2P
10P
SAN
VHI
10 5
CB501
4
5
9 19
2 10 20
9 19
2 10 20
6
7
34
C D
P.C.B. Wiring Connection Block Diagram
MAIN (3)
WXA-50:
WXC-50:
Front
Volume, LED, Switch
CB603
15 10
L type
15P
I type
5 10
W2
Network module
(NW-01)
29 39 49 59
30 40 50 60
29 39 49 59 CB204
30 40 50 60
E F
WXA-50 WXC-50
WXC-50
MAIN (4)
• See page 49 → • See page 52 →
SCHEMATIC DIAGRAM SCHEMATIC DIAGRAM
• See page 52 →
Digital out
SCHEMATIC DIAGRAM
Pre-out
CB701
5 5
SAN
8P
PHI
15 5
CB1
Microprocessor
Network
AC-DC
Audio
MAIN (1)
• See page 47, 48 →
WXA-50:
SCHEMATIC DIAGRAM
• See page 50, 51 →
WXC-50:
SCHEMATIC DIAGRAM
G H I
Flexible Flat Cable
SAN-PH
W801
other cable
CB205
WXA-50
CB2 W902
FAN_CTRL FAN_CTRL
FAN_LOCK FAN_LOCK
SAN
PHI
AMP_OLV AMP_OLV
+15V +15V
6P
SPRY_CTRL 5 SPRY_CTRL
DGND DGND
SCN
4P
VHI
WXA-50
W502A,
W502B P100
VHI
SCN
2P
W1 P103
SAN PHI
Vdaux
Power amplifier and Power module
GND
Vsaux 3P
(ICE power 125ASX2)
W201 P102
BTL_Sync
AMP_EN
PRT_OC
SAN PHI
PRT_THM
PRE_R (ch2) 5
8P
AGNDR
AGNDL
PRE_L (ch1)
J
MAIN (5)
• See page 49 →
SCHEMATIC DIAGRAM
SP out
Fan
W901
P101