Yamaha Disklavier Silent Series Service Manual page 11

MPX100II
• YMW265B-F (XK281B00)
CDO
MELO0
MELO1
MELO2
MEL03
MELI1
DACLR
LE
SHL
SHR
2CHIP
V
DD
Vss
XTAL
EXTAL
MCLKO
MCLKI
HCLKO
QCLKO
SYWI
SYWO
SYOD
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MA0
MA1
MA2
MA3
MA4
MA 5
MA6
MA 7
MA8
MA 9
MA10
V
DD
Vss
MA11
MA12
MA13
MA14
MA15
MA16
MA17
MA18
MA19
MA20
MA21
MA22
MA23
9
CVG (Convolution Voice Generator)
FUNCTION
Read
Write
Chip select
CD output
MEL stereo output
MEL stereo mixing input
DAC L/R output
Latch enable
Sample/Hold L channel output
Sample/Hold R channel output
2 chips mode (0 = 1 chip, 1 = 2 chips)
Slave/Master select (0 = master, 1 = slave)
Power supply (+ 5V)
Ground
Initial clear
Crystal osc.
Crystal/Ext, clock
12.8MHz osc. output
12.8MHz master clock input
6.4MHz clock output (NSYS)
3.2MHz clock output (MEL, LDSP, DAC)
12.8MHz sync. signal input
12.8MHz sync. signal output
6.4MHz/3.2MHz sync. signal output
Wave ROM output enable
Wave ROM data bus
(Power supply ( + 5V))
(Ground)
Wave ROM address bus
Wave ROM chip select
FUNCTION
Wave ROM chip select
Key on & LFO on output
NSYS output (8-channel x 4)
Key on & LFO on input
NSYS input (8-channel x 4)
Power supply ( + 5V)
Ground
NSYS input
MEL stereo mixing input
MEL reverberation input
RAM chip enable
RAM chip enable
RAM data bus
RAM output enable
RAM address bus
Power supply ( + 5V)
Ground
RAM write enable
Register data bus
Register address bus