Block Diagram - Sam4s ER-280 SERIES Service Manual

8 Block Diagram

PRINTER (6DOT)
LPT8235
(RECEIPT)
PRINTER (6DOT)
LPT8235
(RECEIPT)
SAM4S ER-280 SERIES
AC120V / 60HZ
AC230V / 50HZ
IN
230V/50HZ
120V/60HZ
POWER
TRANS
19V/2.3A
24V/0.15A
OUT
+30V(VDI) +24V
RECTIFIER
REGULATOR
RECTIFIER REGULATOR
FUSE
250V/3.15A
SD_RESET nRESET
+5V
RESET IC
RESET
AME8500
+24V
+
IRQ PFAIL
nINT0
-
+5V VPH VPRT(+8V)
PFAIL
VPH
GPIO
ON/OFF
TM(R&J)
GPIO
PRTDISCON(R&J)
GPIO
PEND(R)
GPIO
PEND(J)
GPIO
STEP MOT(R)
LF MOT OUT(A,/A,B,/B)
GPIO
DRV(LB1838)
STEP MOT(J)
LF MOT OUT(A,/A,B,/B)
GPIO
DRV(LB1838)
TPH SIGNAL(CLK,SDI,LAT,STB#1&#2)
GPIO
MCR_CPD23 GPIO
MCR_RDD2 GPIO
MCR_RCP2 nINT4
MCR_RDD3 GPIO
MCR_RCP3 nINT5
BUZZER(2KHZ)
TIMER 4
DRIVER
DWR DRW
DRAWER GPIO
COMP COMP
COMP SENS GPIO
DATA(7:0)
FISCAL
CS_FISCAL
CONTROL CIRCUIT
nRD
nWR
FISCAL B'D I/F
FISCAL B'D
MEM SIZE MAX 2MBIT
REAR VFD B'D
FRONT VFD B'D
CLK/SDI/LAT&STB
+5V +30V
UCN5812
SPOOL
MAIN B'D
+3.0V +3.3V
+8V(VPRT) +5V(VCC)
(VBAT) (SD)
SPOOL
BAT(MS920S)
DRIVER
REGULATOR
+5V
GPIO
RXD/TXD/DTR/DSR
UART#0
RXD/TXD/DTR/DSR
UART#1
RXD/TXD/DTR/DSR
UART#2
RXD/TXD/DTR/DSR
UART#3
D(7:0) DATA(7:0)
A(19:0) ADD(19:0)
GPIO ROM ADD(17:16)
CPU
M27C4001
M30800SFP
nCS0
nRD
nWR
nCS2 nCS2
nCS3 nCS3
SCLK
GPIO
SDA
GPIO
nINT3 SD_INT
BCLK SD_Xin
GPIO XIN XOUT CS1 nRD
ADD(15:0)
DECODER BUFFER
DATA(7:0)
74HC138 74HC541
14.7456MHZ
KEYSCAN RETURN
KEY BOARD
MAX 49KEY
FRONT LCD(16CHAR X 2LINE)
LCD
USB
RJ45
VFD
VFD LCD
VF VDISP LD(7:0) VLCD(BACKLIT)
+5V +30V
+5V
BUFFER
74ACT245
EPROM FLASH SRAM#1 SRAM#2
(BOOT) (BOOT) (OPTION)
AM29F800-70 BS62LV4006 BS62LV4006
(4MBIT) (8MBIT) (4MBIT) (4MBIT)
nCE nOE nCE nOE nWE
nCS nCS
nCS SRAM#2
nCS SRAM#1
VBAT
RTC IC
32.768KHZ
PCF8563
DATA(0:7)
ADD(0:3)
SD_INT
nRD
nWR
SD_RESET
CS_SDCARD
SD_Xin
[7.37MHZ]
MCR CONNECTOR
MODE
MCR READER
KEY
SERIAL & USB
SERIAL#1,#2,#3 & USB
VSERIAL
+5V
+5V
USB IC
(FT232R)
DATA(7:0)
ADD(19:0)
VBAT
DECODER DECODER
74HC138 74HC138
nRD
nWR
+3.3V
W86L388D SD DAT(0:3)
(SD IC)
SD_CMD
SD CARD
SD_CLK
SD_WP
SD_CD
8-1