Sony MSU-750 Maintenance Manual page 50

IC304
CN302
IC301(1/2)
7 COM1_TVD+ LINE
DRIVER TVDA
8 COM1_TVD-
COMMUNICATION
PH301
CN302
INTB
1
10 COM1_RVD+ INTA
7
XRVDA
2
4
11 COM1_RVD- 6 CABLEB
RVDA
3
CABLEA
CLK
TO
CN-1803
XWAIT
XRD
CN302
IC301(2/2)
XWR
1 COM2_TVD+ LINE
DRIVER TVDB XRESET
2 COM2_TVD-
XCSB
XCSA
PH302
CN302 A0-3
1
4 COM2_RVD+
7
2 XRVDB
D0-7
4
5 COM2_RVD-
6
3 RVDB
CN303
1 EXT_I/O_00
26 EXT_I/O_01
2 EXT_I/O_02
27 EXT_I/O_03 8
3 EXT_I/O_04
28 EXT_I/O_05
4 EXT_I/O_06
29 EXT_I/O_07
CN303
5 EXT_I/O_10
30 EXT_I/O_11
6
EXT_I/O_12
31 EXT_I/O_13 8
7 EXT_I/O_14
32 EXT_I/O_15
8 EXT_I/O_16
33 EXT_I/O_17
CN303
38 EXT_I/O_20
14
EXT_I/O_21
39 EXT_I/O_22
15 EXT_I/O_23 8
OPTION
40 EXT_I/O_24
16 EXT_I/O_25
41 EXT_I/O_26
17 EXT_I/O_27
CN303
42 EXT_I/O_30
18 EXT_I/O_31
43 EXT_I/O_32
19 EXT_I/O_33 8
44 EXT_I/O_34
20 EXT_I/O_35
45 EXT_I/O_36
21
EXT_I/O_37
CN303
9 EXT_I/O_40
34 EXT_I/O_41
10 EXT_I/O_42
35 EXT_I/O_43 8
46 EXT_I/O_44
22 EXT_I/O_45
47 EXT_I/O_46
23 EXT_I/O_47
CPU-286
IC2,X1
IRQ1
CARD_INT 1 27MHz
IRQ3 OSC
CDIO_INT 2
TXDO
TXD 3
RXDO
RXD 4
PE7
RTC_TP2 5
PE6
RTC_TP1 6
PE5
HD_INT 7
IC405 PE4
12 FRAME 8
11 IRQ0
13
COM1_CONNECT
IC3
COM0_CONNECT
FREQ.
DIVIDER
COM_CLK CLK CLK/2
CLK Q
COM_WAIT CLK/16
Q4
RD CLK/16384
Q14
WRL
RESET
IC7
COM0 MAIN CPU
COM0
32
D0-31
IRQ0 22
4 IRQ0 A0-21
IRQ1 4
IRQ1 CS0-3
IRQ3
8 IRQ3
RD
RD
TXDO WRL
TXDO WRL
RXDO WRH
RXDO WRH
WRHL
WRHL
PE7 WRHH
PE7/TIOC2B WRHH
PE6
PE6/TIOC2A
PE5 CPU_27M
PE5/TIOC1B CK
PE4 CPU_CK
PE4/TIOC1A EXTAL
BUZZER_OUT RESET
PE0/TIOC0A RES
CPU_WAIT
PA17/WAIT
IC5
FLASH
EEPROM
19
A0-18
ROML D0-7
CE D0-7
RD
OE
WRL
WE
IC6
FLASH
EEPROM
19
A0-18
ROML D8-15
CE D0-7
RD
OE
WRH
WE
4-4
CPU-286
IC1 8
CPU_WAIT
MASTER_CK CPU_WAIT 2
CPU_27M
CPU_27MHz COM_WAIT
COM_WAIT
CARD_WAIT
CARD_WAIT
VRAM_WAIT
VRAM_WAIT
OPT_WAIT
OPT_WAIT
CPU_CK
CPU_CK
COM_CLK RD
COM_CK
CHIP SELECT CLK WRL
CLK(EL)
RESET
ROML PIO_0
ROML
ROMH
ROMH
SRAML
WAIT_MODE0 SRAML
WAIT_MODE0 SRAMH
WAIT_MODE1 SRAMH
WAIT_MODE1 VRAM
WAIT_MODE2 VRAM
WAIT_MODE2 CARD
CARD
EEPROM
EEPROM
RTC
RTC 8
COM1
COM1
COM2
COM2 2
LCTC
LCTC
RE_0
RE_0
RE_1
RE_1
RE_2
RE_2
PIO_0
PIO_0
PIO_1
PIO_1
PIO_2
PIO_2
PIO_3 RD
13 PIO_3
A2-A21 PIO_4 WRL
PIO_4
4 PIO_5 RESET
CS0-3 PIO_5
PIO_1
A8-15
IC16,17
8 ADDRESS
DECODE
IC24
IC9 IC11
SRAM SRAM 15
A0-14
19 19 EEPROM
A0-18 A0-18 CE
RD
SRAML D0-7 SRAML D16-23 OE
CS IO1-8 CS IO1-8 WRL
RD RD WE
OE OE RESET
WRL WRHL RES
WE WE
IC10 IC12
SRAM SRAM IC25
19 19
A0-18 A0-18 15
A0-14
SRAML D8-15 SRAML D24-31 EEPROM
CS IO1-8 CS IO1-8 CE
RD RD RD
OE OE OE
WRH WRHH WRH
WE WE WE
RESET
RES
4-4
IC14 IC20
PIO PIO
8
D0-7 PA7 DIPSW_SEL 0-1 D0-7 PA7
PA6 PA6
CIOENB
PA5 REC_RESET PA5
CIND_G
PA4 2 PA4 CIND_R
A0-1 PA3 A0-1 PA3 NVDI
PA2 PA2 NVSK
PA1 PA1
NVCE
PA0 PA0
BUZZER_ON
PB7 PB7 BUZZER 0-7
PB6 PB6
PB5 REC_STB PB5
PB4 PB4
PB3 PB3
PB2 PB2
PB1 PB1
PB0 PB0
PC7 DIPSW 0-7 RD PC7
RD PC6 RD PC6
PC5 WRL PC5 LCTC_MODE
WR PC4 WR PC4 DP_BLK
PC3 RESET PC3 DP_RS
RESET PC2 RESET PC2 DP_CE
PC1 PIO_2 PC1 DP_DIN
CS PC0 CS PC0 DP_CK
IC15 IC21
PIO PIO
8
D0-7 PA7 WAIT_MODE 0-2 D0-7 PA7 EEPROM_BUSY
PA6 PA6 OPT_SW_BD 0-2
PA5 PA5
PA4 CRESET 2 PA4
A0-1 PA3 CVPP A0-1 PA3
INPACK
PA2 CREG PA2
PA1 ECA_A 24-25 PA1 TOUCHSW_IN 8-9
PA0 PA0
PB7 ECA_A 16-23 PB7 TOUCHSW_IN 0-7
PB6 PB6
PB5 PB5
PB4 PB4
PB3 PB3
PB2 PB2
PB1 PB1
PB0 PB0
PC7 NVDO RD PC7
RD PC6 CENB RD PC6
PC5 WRL PC5 TOUCHSW_LINE 0-5
CBVD 0-1
WR PC4 WR PC4
PC3 CWP RESET PC3
RESET PC2 CBUSY RESET PC2
PC1 COM_CONNECT PIO_3 PC1
CS PC0 CS PC0
NVDO
IC28
EEPROM NVRAM
NVDI
DI DO
D0-7 NVCE
IO1-8 CE
RDY/ RESET
BUSY STORE
NVSK
>SK
EEPROM_BUSY
EEPROM
D8-15
IO1-8 IC29
9
8
RDY/ 10
BUSY
IC22
PIO
8
OPT_BOARD 0-2
D0-7 PA7
PA6
PA5
2 PA4 SW_BOARD 0-2
A0-1 PA3
PA2
PA1
CPU_BOARD 0-1
PA0
PB7 EXT-I/O_ 0-7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
RD PC7 EXT-I/O_ 10-17
RD PC6
WRL PC5
WR PC4
RESET PC3
RESET PC2
PIO_4 PC1
CS PC0
IC23
PIO
8
D0-7 PA7 EXT-I/O_ 20-27
PA6
PA5
2 PA4
A0-1 PA3
PA2
PA1
PA0
PB7 EXT-I/O_ 30-37
PB6
PB5
PB4
PB3
PB2
PB1
PB0
RD PC7 EXT-I/O_ 40-47
RD PC6
WRL PC5
WR PC4
RESET PC3
RESET PC2
PIO_5 PC1
CS PC0
I/O_BUS
CONTROL_BUS
ADDRESS_BUS
DATA_BUS
CHIP_SELECT
MSU-750 MMP2