Block Diagram - Sharp UP-5700 Service Manual

COM3/5 (for serial device): RJ45 (+ 5V possibility with Pattern-cut
& Jumper)
COM4/6 (for serial device): RJ45
COM7
(for Operator VFD control): Not use
COM8
(for Customer VFD control): RJ45
COM9
(for Touch Panel control): TTL level interface
1-13. Power Supply Unit
Input = AC100 - 120V, 50/60Hz

2. Block Diagram

Key I/F PCB
CCFT
Inveter
LCD
Analog
Touch Panel
POS
Keyboard
TPC
NO10-0559-V021
Clerk SW
Mode SW
UP-P20DP
ER-A8DP
Drawer
MCR
CPU PCB
HA
HD
Pentium
14.318MHz
CG
MK1438-04R
32.768kHz
Main PCB
VGAC
T65550B
Video RAM
PCI Bus
1MB
PS/2 KBC
with
Matrix
M38802M267
System SW
COM3/5
PSC2
COM4/6
1-14. Options
[New]
UP-P02MB:
UP-F4RB:
UP-P20DP:
UP-E12MR:
[Existing]
ER-01IN-PC:
ER-01PU:
ER-03/04/05DW:
ER-A6HS1:
ER-A8DP:
ER-A8RS:
HA
HD
EDO
DRAM
FireStar ACPI
144pin
82C700U2.2
S.O.DIMM
Buzzer
32.768kHz
RTC
bq3285ESS
EIDE
Super I/O
M5113A2
BIOS
ROM
512kB
DOS
ROM
4MB
Std.
PS-RAM Disk
1MB
0pt.
PS-RAM Disk
2MB
ISA Bus
5 – 2
Expansion RAM Disk Board (2MB [
16Bus])
Expansion ROM Disk Board (4MB [
16Bus])
Pole Display
Magnetic Card Reader (ISO 1 & 2)
SRN Interface Board
R/J Printer
Remote Drawer
Handy Scanner
Customer Display Option for ECR
RS-232C/Centronics Interface Board
+5V
+12V
Power
Supply
-12V
GND
2.9V DC-DC
Convetor
3.3V DC-DC
Convetor
2.5" HDD
PS/2
Keyboard
COM1
COM2
LPT1
ER-A8RS
ISA
slot
ER-
01IN-PC
Std.
F-ROM Disk
2MB
0pt.
F-ROM Disk
4MB