Yamaha EZ-AG Service Manual page 6

SENSOR
PIEZO
S2
UNIT
SENSOR S4
S6
X3
STRING
S1-S6
PIEZO
S1
SPEAKER SENSOR
S3
4 Ω X3 S5
CN601 (9P)
not used
CN602 (3P)
DM
+3.3D
+5D
-5D
IC703 (5P)
5 4
RESET
+5D
DGND
3.6V
1 17
X102
IC AN3
CLOCK
8.4672MHz
9,10
+3.3D
1,37,38,47,48
SMA [0-20] 47,48,51-59,62-71
WAVE
S-bus
32M
SMD [0-15] 23-34,37-40
MASK
IC201 (48P)
27 SOE
OE 41
SCSO
74
CE
24
46,88,93
+3.3D
12,14,27, 1,25,26,
37,46,47 37,38
PROGRAM PROGRAM
CMA [1-21]
16M 16M
CMD [0-15]
P2ROM MASK
IC302 (48P) IC301 (48P)
28 27
CRD
OE OE
CS0, CS1
CE CE
26 24
CS0
: IC301 or IC302 are mounted.
SE1
CN903 (4P)
Earth
Plate
MUTE
CN902 (4P) 8X10
PLATE
SE
CN901 (7P)
CN604 (2P)
5
+5D
8
SENSOR SENSOR
14
4
AMP 6ch AMP 1ch
SP
IC601-606 (8P) (MUTE)
FT [0-5] 1-3,5,12,13 IC607 (14P)
+5D
6 7
ANALOG 16
SW
8
IC701 (16P)
4,14,15
14,15,16 152
AN0,AN1, P-bus
21
AN2
TXD1
154
RXD1
20
TXD0
153
RXD0
MAIN
CPU
DO0,WCLK, QCLK
SWX00B
158,163,164
IC101 (168P)
133,143,161 +5D
+3.3D
4,7,18,35,49,61,
77,91,119,148
C-bus
75,76,79-87,89
96-99,102-105,124
+3.3D
11,13 37,47
2M 4M
CMA [1-18]
SRAM Flash
CMD [0-15]
IC303 (44P) IC305 (48P)
CLB, CUB
39,40
CRD 41 28
OE OE
CWE 17 11
WE WE
6 26
CS2
CE CE
CS3
: solder
PN
+5D
6,7
9,10
SUB
LED
S [0-11]
CPU
Driver
D [0-7]
IC1 (64P)
L [0-15]
15 36 8,9
TA1,3
(18P)
CLOCK
8.00 MHz
DGND
X1
+5D
CN3 (5P)
CN701 (5P)
+5D
CN501 (11P)
+5D
TX
RX
MIDI-TX
MIDI-RX
+5D +5D
8 8
DAC LPF
2,3
4 1
16Bit &
5,6
1 7
AMP
5,6,7
IC501 (8P)
3 4
IC502 (8P)
+5V
+5D
+3.3V
1 1
DC/DC
3
2
REG.
CNV.
2
IC102 (3P)
3
IC503 (5P)
DGND
-5V
DC/DC
6
4
-5D
CNV.
2
IC504 (8P)
+5D
LD90
SW MATRIX
S [0-11]
X84
D [0-7]
L [0-14]
7 Seg LED
LED MATRIX
D [0-7]
X36
L [12-14]
AM
10,11 10,11
+5D
6
MIDI
I/F
7 7
+5D
4
IC701 (6P)
1
5 TR701,702
2
8
8
9 9
to speaker
+12V
4
1
4 POWER
L 4
AMP
10
R 5 5
IC801 (10P)
2
7
MUTE
+5D
TR703
+12V
D801
1 1
2,3 2,3
SW801
STANDBY
ON
DGND
CN802 (3P)
6 6
AGND AGND
Wire
CN801 (11P)
JK702
(5P)
OUT
MIDI
IN
JK701
(5P)
PHONES/
OUTPUT
JK802
(8P)
JK801
(2P)
DC IN 12V
GND
BATTERY
-
SUM3X6
+
(+9V)
28CA1-8826574