Yamaha ICP1 Service Manual download pdf (Page 26)

ICP1

3

DM

PN

PW

BCDE

2

3

6

4

5

FGH A

HD6417727F160C

Int.128MHz / Ext.64MHz

Clock Mode:2 (Xtal.x4)

Area 0 Bus 16bit

Endian Big Endian

IC104

240P

CPU

X101

16MHz

xtal/extal

+VCC INT +3.3D

+3.3D

+3.3D

X401

25MHz

RJ-45

JK401

+3.3D

+3.3D

+3.3D –VEE

–VEE

+3.3D +5D

+5D

+3.3D

+5D

PWR

+5D

+5D

Microwire

16bit CPUD[0-15]

ENENBL

/RD, /WRLH, CPUA[1-2]

/IRQ_ENET

/RST_ENET

DATA Encoder

EC301

JK203

JK202

JK201

ICP1 ADAPTOR BOX

Power Over Ethernet

LCD 64x160

Hub, DME24/64N

DC IN

16V(PA-300)

ICP1

(+1.9D)

+VCC_INT

(–11.8D)

–VEE

+3.3D

+3.3D

+3.3D

64Mbit

SDRAM

IC106

86P

64Mbit

FLASH

IC107

48P

SYSTEM RESET

S-80130ANMC

IC103

5P

/RESET

CKIO (64Mhz)

32bit

CPUD[0-31]

16bit

CPUD[0-15]

/CS3, CPUA[2-14], RD/nWR,

/WRLL, /WRLH, /WRHL, /WRHH,

CKE, /RAS3L, /CAS

/CS0, CPUA[1-22],

/WRLL, /RD,

/RESET

Power Regulator

PQ070XZ01

IC201 5P

Power Regulator

PQ033Y3H3

IC202 5P

DC-DC

LM2673

IC203 7P

PHY

ICS1893

IC406

64P

EEPROM

93LC46B

IC404

8P

EIN Latch

VHC14, 74

IC304 14P

IC302 14P

Switch Scan

Driver

DTC144E

TR201

LCD BL

ON/OFF

TR303

TR304

VADJ Control

NJM4556

IC301 8P

TR301, 302

Switch x 10

CN101

13P

CN201

13P

CN301

16P

LED x 10

LED

Driver

DTC123J

TR202

Ethernet

Controller

S1S60000

IC402

100P

DC-DC

M5291

IC303 8P

+3.0V detection, 50ms delay

TX

±

MII

OSCO(25MHz)

RX

±

ENINA,B

SCN_LD

SWSCAN

LCD_ON

LCD_VADJ, CTRL

LCDCL1, CL2, DATA[0-3], _FLM, M_DISP

SWIN[0-10]

■ BLOCK DIAGRAM

28CA1-8832059 2

■ BLOCK DIAGRAM

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