Yamaha P-105B - Block Diagrams

GHS 88Keys
CPU
SWX08
INT_CLK: 135MHz
Bus_CLK: 67.7MHz
CN7 (22P)
CN6 (12P) CN5 (12P)
CN7 (22P)
PrgROM
64Mbit
SDRAM
128Mbit
IC8
(54P)
IC2(5P)
IC34
(5P)
IC35
(5P)
IC3(5P)
IC4(5P)
SW7–15
LD3–5
TR1–5
IC7(44P)
IC18
(56P)
IC9
(56P)
IC1(484P)
IC16
(54P)
IC27
(13P)
IC25(16P)
IC33(10P)
IC32(10P)
IC23(16P)
IC22(33P)
IC21(5P)
IC24(8P)
IC20(5P)
JK8
JK1
JK4
JK3
JK6JK5JK7
JK2
TR2
TR1
16.9344MHz
X2
X1
2
7
1
1
2
6
5
4
6
7
9
5
4
6
7
9
4,5
1
1
24
10
8
7
17 16
5
5
4
5
4
1
2,3
8
6
9
10
16 16 16 16
Reset
IC
WAVE
ROM
128Mbit
Keyboad
HPIN
24bit
DAC
PVCC
+B
DAMP
YDA175
LPF
+L
L
R
L
L
R
R
+1.2V
MKS_CLK
MKS_RX
MKS_ACK MKS_IC
+3.3V
MASTER-VR
/PSWI
POWSW
PSWO
SDO1
SDO0
DAMP_Make1,DAMP_Make2,SOSTE,SOFT
SUS
FUNC-DP,FUNC-PM,VBUS
WCLK
BCLK
SYSCLK
-R
+R
R
L
-L
Tweeter L channel
PSWO
/PSWI
DCDC
+3.3V
+1.2V
+3.3D
ERR-DETECT
MUTE
SPOFF
+1.2D
+3.3A
Speker L channel
Speker R channel
PSWO
/PSWI
AC adaptor
PA-150/PA-150A/PA-5D
Tweeter R channel
+3.3V
POWSW
SW[0]~[3]
SOUT[0]~[3]
LED(0)~(4)
SUSTAINUSB
B3
A6
C6
B6
C12
V4
T4
1,2
4
14,15
182728 22
4
44
2121
1,2
A7
AA19
B9,A9,C9
W3,Y1,Y2,AA1,AB2
C4 AA4,AB4,W5,Y5 T2 T3 AB19 AB17 AA18 AB19 Y19
D7
A13 A14
AA5
B1-B15B1-B15
N11-N16 N21-N26
N21-N26 N11-N16
SCAN CPU
MKS5
5MHz
3.3V
→ 5V
48MHz
X3
DSP
SDRAM
64Mbit
ERROR
DETECTION
MUTE-INV
MUTE-RES
/DETECT
/SPOFF
/MUTE
DRIVER
/MUTE
HPIN
/SPOFF
/MUTE
/MUTE
ERR-DETECT
PEDAL
UNIT LP-5A
DCIN
SW MATRIX
SW2–6
LD1–2
MASTER VR
VR1
SW1
SW MATRIX
STANDBY/ON
AVCC
+5D
AUX OUT
AMP
MAX9820
AVCC
+5D
+5D
+3.3D
AVCC
+3.3A
HP
AMP
MAX9820
AUX OUT
L/L+R Rrrrrr
PHONES
CN3 (5P) CN2 (5P)
CN3 (2P)CN5 (2P)
CN3 (17P) CN1 (17P)
CN8 (4P) CN9 (4P)
CN2 (27P)
CN1 (17P)
CN1 (17P)
CN1 (27P) CN4 (5P)
CN4 (5P) CN1 (33P)
CN6 (33P)
HPIN
JK
DM
PN2
GHL88L
GHL88M
GHL88H
HP
PN1
■
BLOCK DIAGRAM
（ブロックダイアグラム）
P-105B/P-105WH
J
2
3
4
5
6
7
1
P-105B/P-105WH/P-35B/L-85WH/LP-5AWH
3
ABCDEFGHI