Yamaha O2R96 Service Manual page 295

H G
BLOCK DIAGRAM 005 (02R96)
PN1
1
LED KEY
MATRIX MATRIX
LED KEY/LED
DRIVE I/F SCAN I/F (PAR
CN100 (8P), CN102 (9P),
CN400 (30P), CN401 (10P)
2
CN903 (8P),
CN904 (9P),
CN905 (10P),
CN906 (30P)
IC603,604 (32P)
SRAM
1Mbit x 2
DATA/ADDRESS-BUS
3
(D:16bit, A:20bit)
4
5
38CA1-8823677-5
6
F
PN2
SURROUND MONITOR
ENCODERS ENCODERS
(x 20) (X 22)
LED KEY
MATRIX MATRIX
EC400-421
EC400-
419
LED KEY/LED SFT-REG
DRIVE I/F SCAN I/F (PAR SER)
SFT-REG
SER)
CN100 (28P),CN401 (38P),
CN702 (8P)
IC901-903
CN907 (28P),
(64P)
CN908 (8P),
CN909 (38P)
COUNTER G/A
COUNTE R G/
COUNTER G/
(REC2 x 3)
(REC2)
(REC2)
IC900 (16P)
ADDRESS
DECODER
IC600 (112P)
SO0 SCK0 IO-Port SI0
RESET
ROM
/IO-Port
SCI1(UART)
SUB CPU
SH7042A
EXTAL
AD (3ch)
IC906
(16P)
ADDRESS
DECODER
CN900 (21P),
CN901 (19P)
CN101 (21P), IC104-109
FD1 CN103 (19P) (20P)
LPF
SHIFT REGISTERS
(x 6)
TOUCH SENSE OSC.
IC139 IC114-129
(16P)
(16P) IC140 (16P)
MULTIPLEXER MULTIPLEXER MOTOR DRIVERS
(8:1) (8:1) ( x 16)
FADER KNOBS (x 16) FADER MOTORS( x 16)
100mm MOTORIZED FADERS (x 16)
VR101-116
E D
CN701(6P) CN351(6P)
ADA
LEVEL
(SEE Page 7)
VR700
VR701
JOYSTICK
JS
CONTROL ROOM
LEVEL
VR400
CN700
CN400(4P)
(4P)
LED
DRIVE I/F
KEY/LED
CN501
SCAN I/F
(16P)
SFT-REG
(PAR SER)
IC914 (16P)
MULTIPLEXERS
(4:1 X 2)
for DEBU
IC605 (112P)
IC703
ROM
(14P)
3-STATE
SCI0(UART)
BUFFER
SUB CPU
X701
OSC
SH7042A
EXTAL
6.7584MHz
FD2
BUF(x 2) BUF(x 2) LPF
TOUCH SENSE
OSC.
IC111 IC110
IC128
(16P) (16P) (16P)
MULTIPLEXERS MULTIPLEXERS MULTIPLEXER
(4:1x2) (4:1x2) (8:1)
FADER POSITION
FADER KNOBS(x 9)
SENSERS(x 16)
C B
PN3
LED KEY
MATRIX MATRIX
PW
PARAMETER
CN500 CN502
WHEEL
(16P)
(4P)
CN501
EC500
(4P)
2
SUB
5V
IC702 (4P)
RESET IC
OR
CN701 (6P)
RESET
IC606,607 (32P)
SCI1(UART)
DATA/ADDRESS-BUS
SRAM
(D:16bit, A:20bit)
SRAM
1Mbit x 2
1MbitÅ~2
AD(7ch)
IC910
(16P)
ADDRESS
DECODER
CN902 (36P)
CN101 (36P)
IC104-107
(20P) BUF(x 2) BUF
SHIFT REGISTERS
(x 4)
IC111-119 IC108
(16P) (16P)
IC129 (16P)
MULTIPLEXER MOTOR DRIVERS MULTIPLEXERS
(8:1) (x 9) (4:1 x 2)
FADER POSITION
FADER MOTORS(x 9)
SENSERS(x 9)
100mm MOTORIZED FADERS (x 9)
VR101-109
CONTROL PANEL Block
BLOCK DIAGRAM 005 (02R96)
A
02R96
CPU1
(SEE Page 5)
RESET(3.3V LINE)
CPU SCI1
CN101 (6P)