Sharp ER-A530, ER-A520 service manual Serial I/O, Power, Flash Memory Rewrite Procedure, Display

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6-3. DISPLAY

The ER-A520/530 is provided with the LCD display of 5 x 7 dot, 2 line, 16 digit on the FRONT side, and the LED display of 7 digit on the POP UP side.

FRONT:

POP UP:

• DISPLAY DIGIT SIGNAL

The above ST0~ST6 are DIGIT signals.

ST0:1st digit~ST6:7th digit

• DISPLAY SEGMENT SIGNAL

The LED segment signal can be outputted by writing segment data to 4000h.

DATA~SEGMENT assignment

D0~D6 3 a~g

D7 3 DP

7. SERIAL I/O

The ER-A520/530 is provided with 2ch RS-232 ports as standard provi- sion.

Ch1 and Ch2 of RS-232 are assigned to the following CPU ports.

Ch1

Pin No.

CPU PORT

Signal to be used

 

 

 

42

/RTS1#

RS1#

 

 

 

41

P65

CI1#

 

 

 

40

RXD1

RD1

 

 

 

39

TxD1

SD1

 

 

 

51

P134

ER1#

 

 

 

50

P135

CD1#

 

 

 

49

P136

CS1#

 

 

 

48

P137

DR1#

 

 

 

Ch2

 

 

 

 

 

Pin No.

CPU PORT

Signal to be used

 

 

 

47

/RTS0#

RS2#

 

 

 

46

P61

CI2#

 

 

 

45

RXD0

RD2

 

 

 

44

TxD0

SD2

 

 

 

61

P130

ER2#

 

 

 

60

P131

CD2#

 

 

 

58

P132

CS2#

 

 

 

56

P133

DR2#

 

 

 

8. POWER

 

Service interruption should be performed

 

within 10ms after generation of /POFF.

TRANS.

LM2574 + TR

24V DRAWER

PRINTER

 

 

 

 

ON/OFF control

 

 

(MODE SW)

 

PQ1CG2032

VLED 5.7V

 

 

VCC 5.0V

 

 

VDD 5.0V

/POFF detection point

 

 

 

BATTERY

9. FLASH MEMORY REWRITE PROCEDURE

The FLASH ROM of Fujitsu MBM29F800TA-90 is employed.

No.

CPU PORT

Signal to

Function

be used

 

 

 

 

 

 

 

67

P126

IPLON0

IPL from EP-ROM

 

 

 

 

66

P127

IPLON1

IPL from COM

 

 

 

 

10

P144

WP#

F ROM Write Protect signal

 

 

 

 

9

P145

RY/BY#

F ROM Ready/Busy signal

 

 

 

 

IPLONO# :"1"; IPL from EP-ROM. Executed from ER ROM.

IPLON1# :"1"; IPL from COM

WP#: Write protect signal of FLASH ROM. "0" write protect. Not used in the ER-A520/530.

RY/BY# : Ready/Busy signal from FLASH ROM

IPL from EP-ROM : After setting the IPL SW to ON side, turn on the

power to boost the EP-ROM.

IPL from COM : Data from PC are written into the FLASH ROM through the COM port. (Max. 38.4kbps)

10. DRAWER

The ER-520/530 is provided with 2ch of drawer ports.

The drive time of the drawer solenoid is as follows:

50ms (max) 45ms(min)

<CPU PORT>

No.

CPU PORT

Signal to

Function

be used

 

 

 

 

 

 

 

4

P93

DRAWER1

DRAWER1 OPEN SIGNAL

 

 

 

 

3

P94

DRAWER2

DRAWER2 OPEN SIGNAL

 

 

 

 

28

P81

DSEN

DRAWER OPEN SIGNAL

 

 

 

 

DRAWER1 : "1", DRAWER 1 OPEN

DRAWER2 : "1", DRAWER 2 OPEN

DSEN : "1", DRAWER OPEN

ER-A520U/ER-A530U HARDWARE DESCRIPTION

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Contents ER-A520 Model ER-A530 Rating SpecificationsAppearance KeyboardDEPT# CancelSlip CONV2 ~ CONV4Mode Switch Mode Switch and Mode KeysDisplay PrinterDrawer Options 1.OPTIONSProgram Reset Master Reset and Program ResetMaster Reset Master ResetAddress MAP Block Diagram Memory MAPHardware Description CPU PIN Table AN0 Temperature Monitor RTS3# Drive SignalRTS4# Drive Signal AN6 Power CON TrolHead Control Printer ControlStepping Motor Control Other PortsPrinter Head Voltage Monitor Printer Head Temperature MonitorD Conversion KEY/DISPLAY Reference VoltageKEY/DISPLAY Scan Serial I/O PowerFlash Memory Rewrite Procedure DisplayBuzzer ResetRistrictions on Print Ratio Description of Each Diag Program Diagnostic ProgramTest Items Display Buzzer TestKeyboard Test Mode Switch TestPrinter Test Printer Sensor TestDrawer 2 Open & Sensor Test Clock TestDrawer 1 Open & Sensor Test LCD CG TestStandard RAM Test Option RAM Test16POLE Display Test CPU Internal RAM TestAD Conversion Port Test Flash ROM Test19SCANNER Test RS TestIPL ROM IPL from EP-ROMROM Copy GND VCC Circuit Diagram and PWB Layout CPUSram / from / Eprom / Poff 16M Flash ROMLCD I/F / KEY I/F Printer Driver RS232C Driver / UP-P16DP CN Option RAM Connector / Printer Connector / Drawer DRAWER1+5V, Vled ER-A520U/ER-A530U Circuit Diagram and PWB Layout ER-A520U/ER-A530U Circuit Diagram and PWB Layout ER-A520U/ER-A530U Circuit Diagram and PWB Layout Copyright  2004 by Sharp Corporation Sharp Corporation

ER-A520, ER-A530 specifications

The Sharp ER-A530 and ER-A520 are advanced electronic cash registers designed to cater to the needs of small and medium-sized businesses. These models are known for their reliability, user-friendly interfaces, and robust features that enhance operational efficiency in retail environments.

One of the most prominent features of the ER-A530 and ER-A520 is their advanced transaction processing capabilities. Equipped with a high-speed thermal printer, these registers ensure quick and efficient printing of receipts, which is essential for maintaining customer satisfaction during busy hours. The print quality is clear and legible, providing customers with a professional receipt that reflects the brand's identity.

Both models boast an intuitive and ergonomic keypad layout, making it easy for staff to learn and operate the register with minimal training. The bright and easy-to-read LCD display is another key characteristic, allowing operators to view transaction details clearly in various lighting conditions. This user-friendly design reduces errors and speeds up the checkout process, making it ideal for busy retail settings.

In terms of storage capacity, the Sharp ER-A530 and ER-A520 can handle a substantial number of PLUs (Price Look Up codes), accommodating a wide range of products and services. This extensive capability is particularly beneficial for businesses with a diverse inventory, as it enables quick access to pricing and product information without needing to enter details manually for every sale.

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In summary, the Sharp ER-A530 and ER-A520 electronic cash registers stand out in the market for their reliable performance, user-friendly design, and a comprehensive set of features that accommodate the unique needs of retailers. These registers not only enhance customer service but also provide critical insights for inventory and sales management, making them an excellent choice for businesses looking to streamline their operations.