Sharp ER-A750 Bedienungsanleitung

SERVICE MANUAL

CODE: 00ZERA750USME

MODEL ER-A750

(For"U"&"A"version)

CHAPTER 1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

CHAPTER 2. OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

CHAPTER 3. SERVICE PRECAUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

CHAPTER 4. SRV RESET (Program Loop Reset) and switch to SRVmode . . . . . . . . . . . . . .4-1

CHAPTER 5. MASTER RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

CHAPTER 6. DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

CHAPTER 7. CIRCUITDESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1

CHAPTER 8. PWB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1

CHAPTER 9. CIRCUITDIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1

PARTS GUIDE

CONTENTS

SHARP CORPORATION This document has been published to be

used for after sales service only. The con-

tents are subject to change without notice.

Parts marked with "!" is important for maintaining the safety of the set. Be sure to replace these parts with specified ones for

maintaining the safety and performance of the set.

TheRBRCTM Seal

TheRBRCTM Seal on the easily removable nickel-cadmium battery pack contained

in our product indicates that SHARP is voluntarily participating in an industry program to

collect and recycle these battery packs at the end of their useful life, when taken out of

service within the United States. The RBRCTM program provides a convenient alternative to

placing spent nickel-cadmium battery packs into the trash or municipal waste stream,

which is illegal in some areas.

SHARP’spaymentstoRBRCTM makes it easy for you to drop off the spent battery pack at local retailers of

replacement nickel-cadmium batteries, or at authorized SHARP product service centers. You may also contact

your local recycling center for information on where to return the spent battery pack. SHARP’s involvement in this

program is part of its commitment to protecting our environment and conserving natural resources.

(RBRCTM is a trademark of the Rechargeable Battery Recycling Corporation.)

CHAPTER 1. SPECIFICATION

1. Apearance

Externalview

Frontview

Rear view

2. Rating

External dimensions 11.4 ×14.4 ×10.3 in. (290 ×365 ×262

mm)

Weight 11.2 lbs. (5.1 kg)

Power source 120VAC ±10% 60 Hz

Power consumption Stand-by: 22W

Operating: 25W (max.)

Working temperatures 32 to 104˚F (0 to 40˚C)

3. Keyboard

1) Standardkeyboardlayout

2) Key top name

1 Standard key top

KEYTOP DESCRIPTION

0 ∼9,00 Numeric keys

• Decimal point key

CL Clear key

@/FOR Multiplication / Split-pricing key

RCPT Receipt print key

RPSEND Remote printer send key

d 1 Discount 1 key

%1 Percent 1 key

TAX1SHIFT

TAX2SHIFT Tax 1 and 2 shift keys

RFND Refund key

VOID Void key

PASTVOID Past void key

SBTLVOID Subtotal void key

RTN Return key

PLU/SUB Price lookup / Subdepartment key

1 ∼99 Direct price look up key

LEVEL 1 ∼5 PLUlevel shift 1 ∼5 keys

SRVC Servicekey

FINAL Final key

BAL Balance key

DRVNC New check 2 key (For drive-through)

DRVGLU Gest look up 2 key (For drive-through)

SERV# Server code entry key

EMP# Employee code entry key

MISCFUNC Miscellaneous function key

MODE Mode key

ENTER Enter key

AUTO1,2 Automatic sequencing 1 and 2 keys

CH# Charge menu key

CHK# Check menu key

TRAYSBTL Tray subtotal key

MDSESBTL Merchandise subtotal key

Operator display

Keyboard

AC cord

Power switch in

sure that the power

switch is placed in the

OFF position prior to

connecting AC power

Left side of

the machine

IR receiver cover Brightness

control

Contrast control

Power switch

Customer

Display

Rear cover

ENTER

CANCEL

PAGE

VOID

PAGE

DOWN

LEVEL

MISC

FUNC

TEX1

SHIFT

SEND

RCPT

NDSE

PAST

SERV

SBTL

VOID

TEX2

SHIFT

AUTO

MODE

EMP

BAL

CHK

SBTL

VOID

FOR

AUTO

RFND

RTN

PLU/

SUB

DRV

GLU

SRVC

FINAL

TRAY

SBTL

$10

$20

SBTL

CA/AT

1–1

KEYTOP DESCRIPTION

SBTL Subtotal key

CA/AT Cash / Amount tendered key

$5,$10,$20 Speed tender key

(Used for AUTO8,9,and 10 key)

PAGEUP Page up key

PAGEDOWN Page down key

→Cursor right key

←Cursor left key

↑Cursor up key

↓Cursor down key

CANCEL Cancel key

2 Optional key top

KEYTOP DESCRIPTION

000 000 key

98 ∼135 Direct price look up keys

1 ∼50 Department keys

%2 ∼%9 Percent 2 ∼9 keys

d 2∼d 9 keys Discount 2 ∼9 keys

CH1 ∼CH8 Charge 1 ∼8 keys

CA2 Cash 2 key

CONV1 ∼CONV4 Conversion 1 ∼4 keys

RA1,RA2 Received on account 1 and 2 keys

PO1,PO2 Paid out 1 and 2 keys

AUTO3 ∼AUTO7 Automatic sequencing 3 ∼7 keys

CHK1 ∼CHK4 Check 1 ∼4 keys

BT Bill totalize / Bill transfer key (CHECK-

ADD)

TRANSOUT Transfer out key

TRANSIN Transfer in key

CASHTIP Cash tip key

CHARGETIP Charge tip key

TIPPAID Tip paid key

EAT IN 1 ∼EAT IN 3 Eat in 1 ∼3 keys

TAX3SHIFT

TAX4SHIFT Tax 3 and 4 shift keys

DEPOSIT Deposit key

DEPOSITRF Deposit refund key

TAX Manual tax key

GRTEX Gratuity exempt key

COVERCNT Cover count entry key

BILL Bill print key

CONV# Currency conversion menu key

SHIFT1 ∼SHIFT5 Pricelevel shift 1 ∼5 keys

BACKSPACE Backspace key

DELETE Delete key

NC New check key

GLU Guest look up key

# Non-add code entry key

NS No-sale key

MGR# Manager code entry key

OPENTARE Tare entry Key

REPEAT Repeat entry key

PERSON# Person number entry key

IND.PAYMENT Individual payment key

EMPL.SALES Employee sales key

RCPSW Receipt ON / OFF key

KEYTOP DESCRIPTION

SCALE Scale entry key

3) Textprogrammingkeysheetlayout

4) Blank key sheet layout

(ENTER)

PAGE

(DC)

PAGE

DOWN

(MODE)

FOR

(INS)

BACK

SBTL

CA/AT

(

CVBNM

(

((

(

(CANCEL)

(

(RECALL)

}{

][

,,,

(DEL)

SPACE

PECORD

(

(SHIFT)

(SPACE) (SPACE) (SPACE) (SPACE) (SPACE)

1–2

3. Display

1) Operatordisplay

•Screen example 1 (REG mode)

•Screen example 2 (PGM mode)

Mode name

Merchandise subtotal excluding taxes

Tax amounts

Sales amount including taxes

Time

Sentinel mark (X):

Appears in the lower comer of the

screen when the cash in drawer exceeds a

programmed sentinel amount. The sentinel

check is performed for the total cash in

drawer.

Menu level shift indicator (L1):

Shows the menu level currently selected.

Price level shift indicator (P1):

Shows the PLU price level currently selected.

Numeric entry:Entered figures appear at the cursor position.

Received media type

Window

In the REG mode, it shows sales information you have just entered such as items, tax amounts

and media types.

Server name

Receipt ON/OFF status:

Stock alarm lamp

Receipt OFF:R

Receipt ON:Blank

Time

Mode name

Casp lock indicator(A/a):

The upeer-case letter "A" appears when

Caps Lock is on, and the lower-case

letter "a" appears when Caps Lock is off

during text programming.

Double-size character mode indicator(W):

Apperars when the double-size character

mode is selected during text programming.

Window

In the PGM mode,

programmable items are listed.

Items remain bottom of the window

1–3

Device type LCD display

Dot format 320(W)×240(H) Full dot

Dot size 0.33 ×0.33 mm

Dot space 0.03 mm

Dot color White

Back color Dark blue

Weight 180 g

2) Customerdisplay

ST: Lights up when a subtotal is displayed.

CG: Lights up when the change due amount appears in the dis-

play or when the total sale amount is negative.

TL: Lights up when you finalize a transaction by pressing the

CA/AT , CA2 , CHK

1throuth

CHK

4or

1through

without any amount tendered entry.

VOID: Lights up when the VOID key or PAST

VOID key is pressed or

when an item void entry is made.

RFND: Lights up when the RFND key is pressed or when a refund

item entry is made.

Device type 7 segment display tube

Number of lines 1 line

Number of positions 7 positions numeric display

Color of display Green

Character size 13(H) ×6(W) mm

3) Displayadjustment

You can adjust the brightness and contrast of the display by using

the corresponding controls.

ST CG

VOID

RFND

Machine state

indicator lamps

Amount

Contrast control

Turning the control backwards

darkens the display and turning

it forwards lightens the display.

Brightness control

Turning the control backwards

darkensthe display and turning it

forwards brightens the display.

1–4

CHAPTER2. OPTIONS

1. System configuration

2–1

2. Options

No. NAME MODEL DESCRIPTION

1 ON-LINESYSTEM ER-A7RS 2 port RS232 I/F

MCRI/F

2 EXPANSION

MEMORYBOARD ER-03MB 1MBPS-RAM

ER-04MB 2MBPS-RAM

3 REMOTEPRINTER ER-03RP

ER-04RP

4 MCR

(Magnet Card Reader) ER-A8MR

5 DATABACKUP

SYSTEM ER-02FD FD unit

CE-IR2 WirelessI/Ffor IR

comunication

CE-IR4

3. Service tools

No. NAME PARTSCODE PRICE

RANK DESCRIPTION

1 TERMINATOR(50Ω) QCNCM7145RCZZ AZ For SRN in-line system

2 EXPANSIONPWB CKOG-6724BHZZ BX

3 MCR test card UKOG-6718RCZZ BE ForER-A8MR

4 RS232LOOPBACKCONNECTOR UKOG-6705RCZZ BC For RS232 connector

4. Supplies

No. NAME PARTSCODE PRICE

RANK DESCRIPTION

1 STANDARDKEYSHEET PSHEK6849BHZZ AS

2 PROGRAMMINGKEYSHEET PSHEK6850BHZZ AH

3 BLANKKEYSHEET PSHEK6818BHZZ AQ

2–2

5. How to use service tools

5-1. ExpansionPWB:CKOG-6724BHZZ

•Extrenal view

•Plain view

•Connection diagram

5-2. MCR test card: UKOG-6718RCZZ

•Used when executing the diagnostics of the ER-A8MR.

•External view

Test pins : Used to check the bus signals.

Bus connector : Used to check the bus signals.

Connected to the ER-A750 Mother PWB.

ER-A750 bus connector

ER-A7RS

2–3

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