Yamaha P-250 Service Manual page 85

B
A C
P-250 OVERALL CIRCUIT DIAGRAM 2/4 (GHD EBUS L, MK SUB, GHD M, GHD H, WML, WMH)
1
(A-1 ~ F2 # )
GHD EBUS L
2
to PN-EQ-CN10,
PNL-CN101,
DM-CN4
3
4
5
6
7
8
GHD M (G2 ~ C5)
9
10
11
12
P-250
A B C
F
D E G
28CC1-8822377
D E F G
H I J
MK SUB
28CC1-8819027
1
(C5 # ~ C7)
GHD H
: Ceramic Capacitor
H I J
M
K L N
LKS
not installed
WML, WMH
not installed
WAVE ROM
128M
28CC1-8822378
Note: See parts list for details of circuit board component parts.
K L M N
O P Q
P-250
1
2
3
4
5
6
Not installed
7
28CC1-8819224
to DM-CN14 (WML)
8
to DM-CN15 (WMH)
not installed
9
10
WAVE ROM
64M
11
C2, 4, 6, 8 : not installed
28CC1-8823075
12
P-250
O P Q