Sharp XE-A21S User Manual

SERVICE MANUAL

MODEL XE-A21S

CONTENTS

CODE : 00Z

LEAD-FREE SOLDER MODEL

XEA21SUSME

ELECTRONIC
CASH REGISTER

■ LEAD-FREE SOLDER

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

CHAPTER 2. OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

CHAPTER 3. MASTER RESET AND PROGRAM RESET. . . . . . . . . 5

CHAPTER 4. HARDWARE DESCRIPTION . . . . . . . . . . . . . . . . . . . . 6

CHAPTER 5. TEST FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

CHAPTER 6. CIRCUIT DIAGRAM AND PWB LAYOUT . . . . . . . . . 15

Parts marked with "!" are 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.

This document has been published to be used

SHARP CORPORATION

for after sales service only.
The contents are subject to change without notice.

■ LEAD-FREE SOLDER

The PWB’s of this model employs lead-free solder. The “LF” marks indicated on the PWB’s and the Service Manual mean “Lead-Free” solder. The
alphabet following the “LF” mark shows the kind of lead-free solder.

Example:

<Solder composition code of lead-free solder>

Solder composition

Sn-Ag-Cu

Sn-Ag-Bi
Sn-Ag-Bi-Cu

Sn-Zn-Bi

Sn-In-Ag-Bi

Sn-Cu-Ni

Sn-Ag-Sb

Bi-Sn-Ag-P
Bi-Sn-Ag

5mm

Lead-Free

Solder composition
code (Refer to the
table at the right.)

a

(1) NOTE FOR THE USE OF LEAD-FREE SOLDER THREAD

When repairing a lead-free solder PWB, use lead-free solder thread. Never use conventional lead solder thread, which may cause a breakdown or an accident.

Since the melting point of lead-free solder thread is about 40°C higher than that of conventional lead solder thread, the use of the exclusive-use soldering iron is rec­ommendable.

(2) NOTE FOR SOLDERING WORK

Solder composition code

a

b

z

i

n

s

p

Since the melting point of lead-free solder is about 220°C, which is about 40°C higher than that of conventional lead solder, and its soldering capacity is inferior to
conventional one, it is apt to keep the soldering iron in contact with the PWB for longer time. This may cause land separation or may exceed the heat-resistive tem­perature of components. Use enough care to separate the soldering iron from the PWB when completion of soldering is confirmed.

Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently.

If different-kind solder remains on the soldering iron tip, it is melted together with lead-free solder. To avoid this, clean the soldering iron tip after com­pletion of soldering work.
If the soldering iron tip is discolored black during soldering work, clean
and file the tip with steel wool or a fine filer.

XE-A21S LEAD-FRE E SOLDER

CHAPTER 1. SPECIFICATIONS

1. APPEARANCE

Front view Rear view

Front view Rear view

Operator display

Operator display

Printer cover

Printer cover

Receipt paper

Receipt paper

Keyboard

Keyboard

Drawer

Drawer

Drawer lock

Drawer lock

Printer

Printer

Take-up spool

Take-up spool

Print roller

Print roller

arm

arm

Print roller

Print roller

release lever

release lever

Inner cover

Inner cover

Customer display

Customer display

(Pop-up type)

(Pop-up type)

Power cord

Power cord

Mode switch

Mode switch

Paper roll cradle

Paper roll cradle

Paper positioning guides

Paper positioning guides

Accessories Manager key 2

Operator key 2

Drawer lock key 2 Drawer lock key

Paper roll 1 Wide 58mm 80φ

Take-up spool 1

USB cable
(0GS5422580)

Customer

1 For connection between

*1

ECR and PC

1 disk CD-ROM

support tool

Quick Start Guide 1 copy

USB portSD card slot

USB portSD card slot

Instruction manual

1 copy 2 languages

(English/Spanish)

Specifications and appearance subject to change without notice for
improvement.

*1 Use only the USB cable (manufactured by SHARP) supplied with

the XE-A21S for the connection with a PC.
In case you need a new USB cable, order the USB cable manufac­tured by SHARP Co. Ltd. (Part code: 0GS5422580) for use with the
XE-A21S.

2. RATING

Model XE-A21S

Dimensions 13.8 (W)

(350 (W)

Weight 17.6 Ib (8 kg)

Power source 120V AC

Powe r
consumption

Working

Stand-by 7.7 W

Operating 28 W (max.)

32 °F to 104 °F (0 °C to 40 °C)

temperature

Electronics LSI (CPU) etc.

Display Operator display 7-segment display (10 positions)

Customer display 7-segment display (7 positions)

Printer Type One-station thermal printer

Printing speed Approx. 12 lines/second

Printing capacity 24 digits each for receipt and jour-

Other functions Graphic logo printing function

Paper roll Width : 2.25

Max. diam. : 3.15 in (80 mm)
Quality : High quality (0.06 to 0.08 mm thickness)

Cash drawer 4 slots for bill and 5 for coin denominations

× 16.9 (D) × 11.1 (H) in.
× 430 (D) × 281 (H) mm)

± 15%, 60 Hz

nal paper

Logo message function

Receipt (ON-OFF) function, com­pression printing function

± 0.02 in (57.5 ± 0.5 mm)

3. KEYBOARD

1) KEYBOARD LAYOUT

Type Normal keyboard

Key position STD/MAX 53

CL

00

× 19 (H) mm

PLU

DEPT

/SUB

#

A

F

20

24

B

4

3

2

1

G

8

19

23

C

H

7

18

22

D

I

6

17

21

E

J

5

DEPT
SHIFT

12

11

10

9

CLK

#

P

K

28

32

L

Q

16

27

31

M

R

15

26

30

N

S

14

25

29

O

T

13

AUTO

TAX

U

TAX2

TAX1

SHIFT

SHIFT

V

CHK

CH

W

MDSE

#/TM

SBTL

SBTL

CA/AT/NS

X

Y

Z

Key pitch 19 (W)

Key layout Fixed type

2) KEY LIST

■Keyboard layout

@/

SHIFT

SPACE

FOR

•

789

456

123

0

CONV

%1RA

RCPT

%2

/PO

NUMBER

–

VOID

RFND

DC

ESC
/HELP

BS

Note: The small characters on the bottom or lower right in each key

indicates functions or characters which can be used for character
entries for text programming.

XE-A21S SPECIFICATIONS

– 1 –

■Key names

KEY TOP DESCRIPTION

2 Paper feed key

RA Received-on account key

RCPT/PO Receipt print/Paid-out key

VOID Void key

ESC/HELP Escape key/Help key

CONV Conversion key

%1, %2 Percent 1and 2 key

RFND Refund key

- Discount key

@/FOR Multiplication key

• Decimal point key

CL Clear key

0-9,00 Numeric Keys

PLU/SUB PLU/Sub-department key

DEPT# Department code entry key

DEPT SHIFT Department shift key

CLK# Clerk code entry key

Dept1-32 Department keys

TAX Tax k e y

Tax 1 SHIFT Tax 1 shift key

Tax 2 SHIFT Tax 2 shift key

AUTO Automatic sequence key

CHK Check key

CH Charge key

MDSE SBTL Merchandise subtotal key

#/TM/SBTL Non-add code/Time display/Subtotal key

CA/AT/NS Total/Amount tender/No Sale key

VOID : Enters into the void mode. This mode allows correction after

finalizing a transaction.

MGR : For manager’s entries. The manager can use this mode for

an override entry.

X1/Z1 : To take the X/Z report for various daily totals.

X2/Z2 : To take the X/Z report for periodic (weekly or monthly) consol-

idation.

5. DISPLAY

1) OPERATOR DISPLAY

Display device : LED

Number of line : 1 line

Number of positions: 10 positions

Color of display : Yellow Green

Character form : 7 segment

Character size : 14.2 (H)

Layout:

0.1.2.3.4.5.6.7.8.9.

2) CUSTOMER DISPLAY

Display device : LED

Number of line : 1 line

Number of positions: 7 positions

Color of display : Yellow Green

Style : Pop up type

Character form : 7 segment

Character size : 14.2mm (H)

+ DP

× 7.9 (W) mm

+ Dp

× 7.9mm (W)

4. MODE SWITCH

1) LAYOUT

• Rotary type

MA

OP

REG

OP

X/Z

PGM

MGR

X

1/Z1

X2/Z2

OFF

VOID

The mode switch can be operated by inserting one of the two supplied
mode keys - manager (MA) and operator (OP) keys. These keys can be
inserted or removed only in the “REG” or “OFF” position.

The mode switch has these settings:

OFF : This mode locks all register operations. (AC power turns off.)

No change occurs to register data.

OP X/Z: To take individual clerk X or Z reports, and to take flash repor ts.

It can be used to toggle receipt state “ON” and “OFF” by
pressing he [RCPT/PO] key.

REG : For entering sales.

PGM : To program various items.

Manager key (MA)

Operator key (OP)

OPMA

Layout:

3.4.5.6.7.8.9.

Operator display

PLU/SUB

DEPT REPEAT

RCPT

OFF

DC

Clerk code

NUMBERSHIFT

Amount: Appears in the far-right eight (max.) positions. When the

amount is negative, the minus symbol “-” appears before the
amount.

Number of repeats for repetitive registrations:

The number of repeats is displayed, starting at “2” and incre­mental with each repeat. When you have registered ten
times, the display will show “0.” (2 3 3

Receipt function status:

The indicator “_” appears in the RCPT OFF position when
the receipt function is in the OFF status.

Time : Appears in the far-right six positions (hour-minute - “ ” or

hour-minute - “ ”) in the OP X/Z, REG, or MGR mode. “ ”
is displayed in the morning (AM), and “ ” in the afternoon
(PM). In the REG or MGR mode, press the [#/TM/SBTL] key
to display the time.

Customer display
(Pop-up type)

.....

9 3 0 3 1 3 2

...

)

XE-A21S SPECIFICATIONS

– 2 –

■Machine state symbols

: Appears during programming.

: Appears when an error is detected.

: Appears when the subtotal is displayed or when the amount

tendered is smaller than the sales amount.

: Appears when the [CONV] key is pressed to calculate a subto-

tal in foreign currency.

: Appears when a transaction is finalized by pressing the [CA/AT/

NS], [CHK] or [CH] key.

: Appears when the change due amount is displayed.

: May appear in the far-left three positions at the timing of key

entry when the electronic journal (EJ) memory is full. (Depend­ing on programming.)

: Appears when the voltage of the installed batteries is under the

required level. You must replace with new ones within two days.

: Appears when the batteries are not installed, or the installed

batteries are dead. You must replace with new ones immedi­ately.

: May appear right below the eighth and ninth places at the timing

of finalization of a transaction when the electronic journal (EJ)
memory is nearly full.
Also appears right below the tenth place when power save
mode is effective.

: Appears when the print roller arm is not locked.

: Appears when the paper is not set or has run out.

Segment

Display

position

Amount 1-8

Minus sign 2-10 - : Floating

Error 8-10 Exx : xx

PGM Mode 10 P

CASH, CHECK,
CHARGE

SUB TOTAL/
short tender

Change 10 C : Light up whenever the change

Currency
Conversion

Department 9-10 No zero-suppressed

PLU 7-10 No zero-suppressed

Repeat 8 Endless count, starting from 2.

Receipt OFF 9 _

DC _ : Double size character entry

SHIFT _ : Shift character entry status

NUMBER _ : Number character entry status

Clerk No. 2, 3 -xx- : clerk number

EJ FULL 8-10 E-E : Light up when EJ memory is

Low Battery 10 L :

No Battery 10 :

10 F : Light up when a registration is

10 o

10 c : Light up whenever the foreign

Description

= error code

finalized by depressing
[CASH], [CHECK], [CHARGE]
key

due amount appears in the dis­play.

amount appears in the display.

status

FULL at the timing of key entry
(by PGM selection).

Decimal Point

Display

position

Decimal point 7-1

TA B 4 -1

EJ near full 8, 9 (by PGM selection)

Description

6. PRINTER

1) Printer

• Part number : M-T53II

• NO. of station : 1 (Receipt or journal)

• Validation : No.

• Printing system : Line thermal

• No. of dot : 288 dots

• Dot pitch : Horizontal 0.167mm
Vertical 0.174mm

• Font : 10 dots (W)

• Printing capacity : max. 24 characters

• Character size : 1.67mm (W)

• Print pitch : Column distance 2.0mm
Row distance 5.21mm

• Max. Print speed : Approximate 60mm/s (Approximate 12 l/s)

•

Max. Paper feed speed

(Manual feed) : Approximate 40mm/s (Approximate 12 l/s)

• Reliability : Mechanism LIFE 6 million lines used to

• Paper end sensor : Set up

•Cutter : No

• Near end sensor : No

: Approximate 60mm/s (Approximate 12 l/s)

high-quality thermal paper

2) Paper

• Paper roll dimension:

• Paper quality: High-quality thermal paper

57.5 ± 0.5mm in width

Max. 80mm in diameter

paper thickness : 0.06 to 0.08mm

Nihon seisi thermal paper : TF50KS-E

Oji thermal paper : PD150R,

3) Logo stamp

• No

× 24 dots (H)

× 4.17mm (H) at 10 × 24 dots

PD160R

XE-A21S SPECIFICATIONS

– 3 –

4) PRINTING AREA

Number of thermal head heater elements 288 dots

(4.75) (4.75)48 (288 dots)

print area

(max.24 characters)

0.167

57.5±0.5

(Paper dimension)

7. DRAWER

(units : mm)

3) Drawer Lock Key

This key locks and unlocks the drawer. To lock it, turn 90 degrees coun­terclockwise. To unlock it, turn 90 degrees clockwise.

8. USB PORT

[DEVICE]

USB B Type

[OUTLINE]

This ECR has 1 port.
This is used in order to connect with a personal computer.

[OUTLINE]

• Standard equipment : Yes (1)

• Max. number of additional drawers: 1

• The drawer consists of :

1) Drawer box (outer case) and drawer

2) Money case

3) Coin case

4) Lock (attached to the drawer)

[SPECIFICATION]

1) DRAWER BOX AND DRAWER

Model name of the drawer box SJ415

Size

Material Plastic

Bell —

Release lever Standard equipment:

Drawer open sensor —

2)MONEY CASE

Separation from the drawer Disallowed

Separation of the bill compart­ments from the coin compartments

Bill separator —

Number of compartments 4B/5C

Layout:

330(W) × 418(D) × 98(H)

situated at the bottom

Allowed

mm

[SPECIDICATIONS]

1) Transmission rate

USB 2.0 Full Speed Max. 12Mbps

2) Connector

USB B Type

3) Pin assign

1Pin 5V

2Pin

− D

+ D

3Pin

4Pin GND

9. BATTERY

1) MEMORY BACK UP BATTERY

For memory back up, the dry battery AA (3 pieces) are needed.

1. Memory holding time:

Approximate 1 year after New dry batteries are inserted.

2. Battery exchange method:

When the low battery symbol “L” lights up, batteries (3 pieces)
exhange by the following method, with 2 days.

1) Power on the ECR.

2) Mode switch turn to “REG” mode.

3) Release the OLD dry batteries (3 pieces).

4) Insert the NEW dry batteries (3 pieces).

5) Confirm the low battery symbol “L” lights off.

4B/5C

2) LOW BATTERY

Low battery indication will appear on the left side of display when the
battery voltage is low.

CASE 1: When any numeric entry & any item entry is not done or just

after finalization.

The machine can indicate the low battery condition. (Always)

XE-A21S SPECIFICATIONS

– 4 –

CASE 2: When numeric entry or item entry is done.

Battery condition will not appear.
Exceptionally, when the power is restored after a power failure, the
low battery condition will appear on the display only when the bat­tery is low.
And the indicator will disappear after any key entry.

[Display sample]

“ 0.00”: Battery is OK.

“L 0.00”: Low battery (You have to change the batteries.)

“ 0.00”: No battery (You have to change the batteries immediately.)

After finalization

“F 12.34”: Battery is OK.

“L 12.34”: Low battery. (“L” indicate instead of “F”.)

“ 12.34”: No battery. (“L” indicate instead of “F”.)

Note: “NO BATTERY”: When the “NO BATTERY” is display, the mas-

ter reset is executed at the timing of “POWER
ON” after the “POWER OFF”.

CHAPTER 2. OPTIONS

10. SD MEMORY CARD

[Device]

SD Card (Version. 1.01)

[Outline]

XE-A21S has a SD Memory Card slot.

[Specidications]

1) Variable clock rate : 0 - 25 MHZ

2) Other commands and memory access : 2.7 - 3.6V

3) Bus Protocol : SPI Bus

4) Correspondence capacity : 32MB - 512MB

5) Recommended manufacturer : SanDisk

1. OPTIONS (NO)

2. SERVICE OPTIONS (NO)

3. SUPPLIES

No. NAME PARTS CODE PRICERANK DESCRIPTION

1 Thermal roll paper TPAPR6656RC05 BA 5 ROLLS/PACK (70 φ)

4. SPECIAL SERVICE TOOLS (NO)

No. NAME PARTS CODE PRICERANK DESCRIPTION

1USB Cable

CHAPTER 3. MASTER RESET AND PROGRAM RESET

1. MASTER RESETTING

Master resetting clears the entire memory and resumes initial values.
Master resetting can be accomplished by using the following procedure:

Procedure A: 1) Unplug the AC cord from the wall outlet or set the

mode switch to OFF Position.

2) Let the ECR be without the memory back up battery.

3) Wait over 1 muinite for discharging.

4) Set the mode switch to any position except OFF.

5) Plugin the AC cord to the wall outlet or turn the
mode switch from OFF Position to another position.

The master reset can also be accomplished in the following case.

In case power failure occurs when the machine has no battery
attached to it, the master reset operation is automatically performed
after the power has been restored.
(This is because if power failure occurs with no battery attached to
the machine, all the memories are lost and the machine does not
work properly after power recovery; this requires the master reset
operation.)

2. PROGRAM RESETTING (INITIALIZATION)

This resetting resumes the initial program without clearing memory.

This resetting can be operated at below sequence in PGM mode.

Procedure: 1) Unplug the AC cord from the wall outlet.

2) Wait over 1 muinite for discharging.

3) Set the mode switch to the PGM position.

4) While holding down the FEED key, plugin the AC
cord to the wall outlet.

Note: In case power failure occurs when the machine has no battery

attached to it, the master reset operation is automatically
performed after the power has been restored.

XE-A21S OPTION S

– 5 –

CHAPTER 4. HARDWARE DESCRIPTION

1. HARDWARE BLOCK DIAGRAM

12MHz

PRINTER

MT53II

DRY Battery

CPU

Renesus

M30624MWP­XXXFP

ROM 320KByte
RAM 24KByte

Decoder

74HC138

4 to 16

74H374

BUZZER

×

2

RESET IC

LV125

HCT04

S-RAM

128KByte

USB
Controller

M66291GP

SEG

Driver

DIG

Driver

KEY SCAN

KEY RETURN

POWER

5.8V

5.0V

3.3V

7.9V

23.8V

32.768kHz

DRAWER

Driver/Sensor

MOTOR

SD CARD

USB

Type B

LED
Front 10
PopUp 7

KEY

SWITCH

2. MEMORY MAP

1MByte mode/The CS area PM13 = 1 is selected.

CPU internal RAM : 24KByte 00400h-063FFh

External RAM : 128KByte 08000h-27000h

00000h

00400h

CPU internal RAM

24KByte 00400h-063FFh

063FFh

06400h

08000h External RAM

128KByte

27000h

28000h USB controller

(Area that can be used 124KByte)

/CS2

/CS1

<Main parts>

CPU : M30624MWP-XXXFP (Renesus)

ROM 320KByte (MASK) RAM 24KByte

External RAM : 1Mbit (128K

CYPRESS CY62128BLL-70SXI

Printer : MT53II (EPSON)

USB controller : M66291GP (Renesus)

× 8)

30000h Segment Latch Address

80000h

B0000h

CPU internal MASK ROM

320KByte B0000h-FFFFFh

FFFFFh

/CS0

XE-A21S HARDWARE DESCRIPTION

– 6 –

3. CPU PORT

Port Pin No. Pin name Signal name I/O Initial value Off mode Function

P00 88 D0 D0 I/O H Out L DATE BUS D0

P01 87 D1 D1 I/O H Out L DATE BUS D1

P02 86 D2 D2 I/O H Out L DATE BUS D2

P03 85 D3 D3 I/O H Out L DATE BUS D3

P04 84 D4 D4 I/O H Out L DATE BUS D4

P05 83 D5 D5 I/O H Out L DATE BUS D5

P06 82 D6 D6 I/O H Out L DATE BUS D6

P07 81 D7 D7 I/O H Out L DATE BUS D7

P10 80 P10 KST0 O L In KEY DISPLAY (4 TO 16)

P11 79 P11 KST1 O L In KEY DISPLAY (4 TO 16)

P12 78 P12 KST2 O L In KEY DISPLAY (4 TO 16)

P13 77 P13 KST3 O L In KEY DISPLAY (4 TO 16)

P14 76 P14 IN2 O L Out L PAPER FEED MOTOR

P15 75 P15 IN1 O L Out L PAPER FEED MOTOR

P16 74 P16 ENA2 O L Out L PAPER FEED MOTOR

P17 73 P17 ENA1 O L Out L PAPER FEED MOTOR

P20 72 A0 A0 O H Out L ADDRESS BUS A0

P21 71 A1 A1 O H Out L ADDRESS BUS A1

P22 70 A2 A2 O H Out L ADDRESS BUS A2

P23 69 A3 A3 O H Out L ADDRESS BUS A3

P24 68 A4 A4 O H Out L ADDRESS BUS A4

P25 67 A5 A5 O H Out L ADDRESS BUS A5

P26 66 A6 A6 O H Out L ADDRESS BUS A6

P27 65 A7 A7 O H Out L ADDRESS BUS A7

P30 63 A8 A8 O H Out L ADDRESS BUS A8

P31 61 A9 A9 O H Out L ADDRESS BUS A9

P32 60 A10 A10 O H Out L ADDRESS BUS A10

P33 59 A11 A11 O H Out L ADDRESS BUS A11

P34 58 A12 A12 O H Out L ADDRESS BUS A12

P35 57 A13 A13 O H Out L ADDRESS BUS A13

P36 56 A14 A14 O H Out L ADDRESS BUS A14

P37 55 A15 A15 O H Out L ADDRESS BUS A15

P40 54 A16 A16 O H Out L ADDRESS BUS A16

P41 53 A17 A17 O H Out L ADDRESS BUS A17

P42 52 A18 A18 O H Out L ADDRESS BUS A18

P43 51 A19 A19 O H Out L ADDRESS BUS A19

P44 50 /CS0 /CS0 O H Out L SEGMENT LATCH

P45 49 /CS1 /CS1 O H Out L USB CONTROLLER

P46 48 /CS2 /CS2 O H Out H SRAM

P47 47 /CS3 (NU) O L Out L UNUSED

P50 46 /WR /WR O H Out L WRITE STROBE SIGNAL

P51 45 /BHE (NU) O L Out L UNUSED

P52 44 /RD /RD O H Out L READ STROBE SIGNAL

P53 43 BCLK (NU) O L Out L UNUSED

P54 42 /HLDA (NU) O L Out L UNUSED

P55 41 /HOLD /EPM I

P56 40 ALE (NU) O L Out L UNUSED

P57 39 /RDY /RDY I

P60 38 P60 DR1 O L Out L DRAWER DRIVE SIGNAL

P61 37 P61 SD_CLK O H Out L SD CLK

P62 36 P62 SD_RXD I

P63 35 P63 SD_TXD O H Out L SD TXD

-

-

-

In

In VCC PULLUP

In SD RXD

XE-A21S HARDWARE DESCRIPTION

– 7 –

Port Pin No. Pin name Signal name I/O Initial value Off mode Function

P64 34 P64 SD_POWER# O H Out L SD POWER#

P65 33 P65 SD_CS# O H Out L SD CS#

P66 32 P66 SD_CD# I

P67 31 P67 SD_WP# I

-

-

In SD CD#

In SD WP#

P70 30 TXD2 DAT O L Out L PRINTER DATA OUT

P71 29 P71 (NU) O L Out L UNUSED

P72 28 CLK2 CLK O L Out L PRINTER CLOCK

P73 27 P73 (NU) O L Out L UNUSED

P74 26 P74 P74 I

P75 25 P75 P75 I

-

-

In MODEL JUDGMENT

In MODEL JUDGMENT

P76 24 P76 /RES_USB O L Out L USB RESET

P77 23 P77 /EPM CTRL O H Out L /EPM CONTROL SIGNAL WHEN IPL

P80 22 P80 BUZZER O L Out L BUZZER

P81 21 P81 MOTOR O L Out L PAPER TAKE UP MOTOR

P82 20 /INT0 POFF I

P83 19 /INT1 /DREQUSB I

P84 18 /INT2 /INTUSB I

P85 17 /NMI (NU) I

P86 11 XCOUT XCOUT I

P87 10 XCIN XCIN I

P90 7 P90 P90 I

P91 6 P91 P91 I

P92 5 P92 P92 I

P93 4 P93 P93 I

P94 3 P94 P94 I

P95 2 P95 P95 I

P96 1 P96 P96 I

P97 100 P97 P97 I

P100 97 AN0 P100 I

P101 95 AN1 P101 I

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

In POWER INTERRUPT

In USB DMA REQUEST

In USB INTERRUPT

In UNUSED

In 32.768kHz

In 32.768kHz

In KEY IN

In KEY IN

In KEY IN

In KEY IN

In KEY IN

In KEY IN

In KEY IN

In KEY IN

In HEAD TEMPERATURE MONITOR

In HEAD VOLTAGE MONITOR

P102 94 P102 /STB2 O H In PRINTER/STB2

P103 93 AN3 VBAT I

-

In BATTERY VOLTAGE

P104 92 P104 (NU) O L Out L UNUSED

P105 91 P105 VPON O L Out L PRINTER HEAD POWER

P106 90 P106 /LAT O H Out L PRINTER DATA LATCH

P107 89 P107 /STB1 O H In PRINTER/STB1

BYTE 8 BYTE I

CNVss 9 CNVss I

/RESET 12 /RESET I

-

-

-

In CONNECTED TO VDD

In NOMAL: L /BOOT: H

In RESET

Xout 13 Xout O Out CLOCK

Vss 14 Vss power CONNECTED TO GND

Xin 15 Xin I In CLOCK

Vcc 16 Vcc power CONNECTED TO VDD

Vcc 62 Vcc power CONNECTED TO VDD

Vss 64 Vss power CONNECTED TO GND

AVss 96 AVss power CONNECTED TO GND

Vref 98 Vref ref CONNECTED TO VDD

AVcc 99 AVcc power CONNECTED TO VDD

XE-A21S HARDWARE DESCRIPTION

– 8 –

4. USB PORT

One port for USB Port (Slave) is provided as a standard provision of
XE-A21S.
The Renesus-make USB general-use ASSP device M66291 is used.
The M66291 is mapped to the /CS1 area 28000h-29FFFh.

CPU

A0

A1-A6

D0-D7

/CS1

/RD

/WR

/RESUSB

/DREQUSB

/INTUSB

M66291

D15/AD0
AD1-AD6

VBuss

D0-D7 TrON

CS
RD
LWR
/RESET
/Dreq0
/INT0
HWR/BYTE

D
D

24MHz

1.5k

+

−

1.0µF

1

Vbus

3

D

+

2

D

4

GND

USB
CONN­ECTOR

−

27

27

<CPU PORT>

No. CPU port Use signal Purpose

19 P83 (INT1)

18 P84 (INT2) /INTUSB USB interruption 0 request signal

24

P76 (TA3OUT)

/DREQUSB

USB DMA channel 0 DMA request
signal

/RESUSB M66291 Reset control

5. SD CARD I/F

One port for SD card I/F is provided as a standard provision of XE-A21S.
Communication with the SD card is made in the SPI mode.

<DRIVE STEP>

Driver IC input (CPU output) Motor drive signal

STEP IN1 IN2 ENA1 ENA2

A

(OUT1)B (OUT3)

/A

(OUT2)

(OUT4)

1LLHH H H L L

2HLHH L H H L

3HHHH L L H H

4LHHH H L L H

6-2. HEAD CONTROL

HEAD: All 288dot, Width 0.167mm/dot (6dot/mm)

<CPU PORT>

Pin No. CPU port Use signal Function

89 P107 STRB1# Printer STB1#

94 P102 STRB2# Printer STB2#

30 P70 DAT Printer print data

28 P72 PCLK Printer forwarding clock

90 P106 LATCH# Printer data latch

91 P105 VPON Printer head motor power

6-3. PAPER TAKE UP MOTOR CONTROL

<CPU PORT>

Pin No. Port Use signal Function

21 P81 MOTOR Printer paper take up motor

6-4. OUT OF PAPER DETECTION

<CPU PORT>

Pin No. Port Strobe signal Function

6 P91 /S4 Printer out of paper detection

(It reads according to the timing of /S4)

/B

No. CPU port Use signal Purpose

31 P67 (TXD1) /SD_WP SD card write protect detection signal

32 P66 (RXD1) /SD_CD SD card insertion detection signal

33 P65 (CLK1) /SD_CS SD card chip select signal

34 P64 (CLKS1) /SD_POW SD card power on signal

35 P63 (TXD0) SD_TXD TxD signal

36 P62 (RXD0) SD_RXD RxD signal

37 P61 (CLK0) SD_CLK Serial CLK signal

6. PRINTER CONTROL

6-1. STEPPING MOTOR CONTROL

The two-phase bi-polar stepping motor is driven at a constant voltage.
1step: 0.087mm, 1dot: 2step

<CPU PORT>

Pin No. CPU port Use signal Function

76 P14 IN2 Paper feed motor (IN2)

75 P15 IN1 Paper feed motor (IN1)

74 P16 ENA2 Paper feed motor (ENA2)

73 P17 ENA1 Paper feed motor (ENA1)

6-5. PLATEN OPEN (HEAD UP DETECTION)

<CPU PORT>

Pin No. Port Strobe signal Function

6 P91 /S3 Platen open detection

(It reads according to the timing of /S3)

7. A/D CONVERSION

The following three signals are inputted to the A/D conversion port.

<CPU PORT>

PIN
No.

Port

97 AN0/P100 TM Printer head temperature monitor

95 AN1/P101 VPTEST Printer head voltage monitor

93 AN3/P103 VBAT Battery voltage monitor

Use

signal

Function

XE-A21S HARDWARE DESCRIPTION

– 9 –

7-1. PRINTER HEAD TEMPERATURE MONITOR

The voltage divided by the thermistor for detecting the printer head tem­perature and the resistor is inputted to the AN0 pin.

Head

temperature

Less than −10°C

−10°C Less

than 0°C

0°C Less than
70°C

70°C or above 0~231 Motor lock

A/D conversion

value (DEC)

929~1023 Motor lock

869~928 Print in the conduction time at 0°C.

232~868 Print in the conduction time speci-

fied on the MT-T53II specifications.

Operation

7-2. PRINTER HEAD VOLTAGE MONITOR

The voltage supplied by the printer head power and passed through the
printer and divided by the resistor is inputted to the AN1 pin.
The printable voltage range for the printer is 140~252 in A/D conversion
value.

7-3. BATTERY VOLTAGE MONITOR

The voltage of VDD is inputted to AN3 pin. For an A/D value of 189
(3.69V) or less, it is judged as LOW BATTERY. For 174 (3.40V) or less,
it is judged as NO BATTERY.

8-3. CPU PORT AND REGISTER

<POPUP DISPLAY-RELATED RESISTER>

Function Address R/W

LED Segment Signal 30000h W

<LED SEGMENT SIGNAL WRITE>

Address Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0

30000h dp g f e d c b a

<CPU PORT>

Pin No. Port Use signal Function

80 P10 KST0 Key strobe signal 0

79 P11 KST1 Key strobe signal 1

78 P12 KST2 Key strobe signal 2

77 P13 KST3 Key strobe signal 3

Strobe signals of /S0~/S9 are made by using SN74HC138 from KST0~KST3
signals.

<OTHERS CPU PORT>

ST0 ST1 ST2 ST3 ST4 ST5 ST6 ST7 ST8 ST9

MODE P90 SRV PGM Time REG MGR X1/Z1X2/

Z2

P91 PF HEADUPOut of

paper

8. KEY/DISPLAY

The front display is of 10 digits of LED, and the POPUP display is of 7
digits of LED.

FRONT:

POP UP:

<KEY/DISPLAY COMPOSITION>

/CS0 30000h

HC374

D0~D7

CPU

HC138

KS0~
KS3

8-1. LED DIGIT SIGNAL

The above /S0~/S9 are considered as LED DIGIT signals.
S0#: First digit~S9#: 10th digit (For the POPUP side, ST0~ST6 are used.)

8-2. LED SEGMENT SIGNAL

By writing the segment data to 30000h, the LED segment signal can be
outputted.

Data~Segment correspondence

D0~D6 3 a~g
D7 3 DP

a~g, dp

ST0#~
ST9#

ST0#~
ST9#

P90~P97

Front Display

10 segment

POPUP Display

㧣 segment

Keyboard / MODE SW

MATRIX

9. POWER

After occurrence of POFF#, the power
interruption must be made within 10ms.

TRANS.

PQ1CG203

PQ1CG203

VO 24V
(DRAWER)

VLED 5.7V
VCC 5.0V

BA033

POFF# detect
point

Battery

ON/OFF Control

LM2574

+

Tr

.

(MODE SW)
VP 8V
PRINTER headMotor

ON/OFF Control
(MODE SWPOFF#
VPON)

10. DRAWER

The XE-A21S is provided with 1CH of a drawer port.

Pin No. Port Use signal Function

38 P60 DR1 Drawer drive signal

(*) The drawer solenoid drive time is as follow: 55ms (max)

50ms (min)

VCC

3.3V

VDD 5.0V

XE-A21S HARDWARE DESCRIPTION

– 10 –

CHAPTER 5. TEST FUNCTION

1. TEST ITEMS

The test items are as follows.

NO. JOB code Description

1) 100 DISPLAY BUZZER TEST

2) 101 KEY CODE DISPLAY

3) 102 PRINTER TEST

4) 104 KEYBOARD TEST

5) 105 MODE SWITCH TEST

6) 106 PRINTER SENSOR TEST

7) 107 CLOCK DISPLAY TEST

8) 110 DRAWER OPEN TEST

9) 120 EXTERNAL RAM TEST

10) 121 CPU INTERNAL RAM TEST

11) 140 CPU INTERNAL ROM TEST

12) 160 AD CONVERSION PORT TEST

13) 173 WINDING SPOOL CHECK TEST

14) 520 USB COMMUNICATION TEST 1
(ID/ADDRESS PRINT)

15) 521 USB COMMUNICATION TEST 2
(DATA TRANSFER)

16) 522 USB COMMUNICATION TEST 3
(PROCESS INSPECTION)

17) 550 SLEEP MODE TEST

18) 620 SD CARD TEST 1
(CARD DETECTION/READ REGISTER)

19) 621 SD CARD TEST 2
(DATA READ/DATA WRITE)

20) 622 SD CARD TEST 3
(PROCESS INSPECTION)

21) 161 CONTINUOUS DIAG FOR THE FTC

22) 162 CONTINUOUS DIAG FOR THE PROCESS

23) 163 DIAG FOR THE EMI/EMC EVALUATION

24) 164 DIAG FOR THE TEMPERATURE RISE
TEST

2. DESCRIPTION OF EACH DIAGNOSTIC
PROGRAM

1) DISPLAY BUZZER TEST

1

Key operation

1 0 0

2

Test procedure

The decimal point will shift in steps of 1 digit from the lower digit to
the upper (every 200m sec).
After that, all segments turn on (about 1 sec).
This mode is repeated.
At the same time, the buzzer sounds continuously.

3

Display

OP display

POPUP display

OP display

POPUP display

4

Check that

• The display of each position must be proper.

• The brightness of each display LED must be even.

• The buzzer sound must be normal.

5

End of testing

You can exit the test mode by pressing any key. The following is
printed.

End print:

RCPT/PO

:

1. 2. 3. 4. 5. 6. 7. 8. 9. 0.

:

4. 5. 6. 7. 8. 9. 0.

Repeat

:

8. 8. 8. 8. 8. 8. 8. 8. 8. 8.

:

8. 8. 8. 8. 8. 8. 8.

100

1) STARTING DIAG

Mode switch position : “SRV” mode
Key operation : JOB code

+ “RCPT/PO” key

2) COMMON NOTES

During execution of the diag, the winding motor is rotated regardless
of the setting. (Operation in the journal mode)

2) KEY CODE DISPLAY

1

Key operation

2

Test procedure

Every time a key is pressed, the code of that key is displayed as
a decimal number.

3

Display

OP display

POPUP display

(*) ***

4

Check that

• Every time when each key is pressed, the hard code of the key is
displayed in decimal number.

• For double typing or invalid typing, “

XE-A21S TEST FUNCTION

– 11 –

1 0 1

RCPT/PO

:

1 0 1

:

= Key code

* * *

* * *

− − − ” is displayed.

5 End of testing

You can exit the test mode by turning the mode switch to a position
other than the SRV mode. The printer prints as follows.

End print:

101

3) PRINTER TEST

1

Key operation

1 0 2

2

Test procedure

3 lines of 24 Z's are printed.

3

Display

OP display

POPUP display

4

Check that
Print must be free from dirt, thin spots, or uneven density.

Print:

5

End of testing
The test will automatically be terminated after the printer prints.

RCPT/PO

:

1 0 2

:

ZZZZZZZZZZZZZZZZZZZZZZZZ
ZZZZZZZZZZZZZZZZZZZZZZZZ
ZZZZZZZZZZZZZZZZZZZZZZZZ

4) KEYBOARD TEST

1

Key operation

** * *

(*)

**** = Sum check code on each model (omissible)

2

Test procedure

The keyboard is checked with the sum check data of the key code
except for the paper feed key.
The sum check data of each model is inputted to the upper 4 digits
of the diag code, and the data is compared with the key data accu­mulated until the final key is pressed.
When the data are in accord with each other, the end print is made.
If not, an error print is made.

(*) The final key : “CA/AT” Key
(*) XE-A21S sum check code: 3417

3

Display

1 0 4

RCPT/PO

5

End of testing

When the
test ends normally

When an error occurs:

(*) The sum check code of the model is printed in “XXXX” section of

the error print, and the added sum check data are printed in
“YYYY” section.

(*) KEY sum check data calculation method: Add the hard code

(hexadecimal) of the input data contact position (excluding
FEED key). However, the end key (CA/AT) is not added. The
added data are converted into a decimal number, which is the
sum check data to be inputted when starting the diag.

:

KEY SUM ERROR XXXX-YYYY

104

104

5) MODE SWITCH TEST

1

Key operation

1 0 5

2

Test procedure
Turn the mode SW from “PGM” position to “X2/Z2” one by one
sequentially and return to “PGM” position again. Check that the
positions are changed in the proper sequence.
If the test is completed normally, the end print is made. If not, an
error print is made.

3

Display

OP display

POPUP display:

MODE

PGM VOID OFF OP X/Z REG MGR X1/Z1 X2/Z2

*

(*)

* = Mode SW position code

LED not displayed due to OFF

(*1)

4

Check that

• Check that the position codes are read in the proper sequence.
(“9” is displayed when the contact is open.)

• Check the display during the test and the content of the end print.

5

End of testing

When the
test ends normally

RCPT/PO

:

1 0 5

12

nondis­play*1

*

*

34567

:

105

OP display

POPUP display:

4

Check that

• Check to confirm that there is no problem in key stroke and
response.

• Check the contents of the end print.

:

1 0 4

XE-A21S TEST FUNCTION

– 12 –

When an error occurs:

MODE KEY ERROR

105

6) PRINTER SENSOR TEST

1

Key operation

1 0 6

2

Test procedure

Check the status of paper end sensor and head up sensor.

3

Display

OP display

POPUP display:

= Paper end sensar 1: Paper present 0: Out of paper

(*) X

= Head up sensor 1: Head down 0: Head up

(*) Y

4

Check that

Check that the status is changed properly.

5

End of testing

You can exit the test mode by pressing any key and the printer prints
the following.

RCPT/PO

:

1 0 6 X-Y

X-Y

106

7) CLOCK DISPLAY TEST

1

Key operation

1 0 7

2

Test procedure

The clock is displayed.

3

Display

OP display

POPUP display:

(*) hh = hour mm = min ss = sec

4

Check that

• Check “

• Check the clock counts up normally.

5

End of testing

When any key is pressed, the date and time are printed and the test
mode will terminated.

-

End print:

(*) yy = year

hh

= hour mm = min

RCPT/PO

:

h

” blinks at an interval of 500ms.

mm = month dd = day

h h-m m s s

-

m m s s

yymmdd-hhmmss

107

ss = sec

8) DRAWER OPEN TEST

1

Key operation

1 1 0

2

Test procedure

Drawer open.

3

Display

OP display

POPUP display:

4

Check that

The drawer opens normally.

5

End of testing

The test will automatically be terminated and the printer prints as
follows.

End print:

RCPT/PO

:

1 1 0

110

9) EXTERNAL RAM TEST

1

Key operation

1 2 0

2

Test procedure

The standard 128 Kbyte RAM is checked.
The contents of the memory are lost after this test.
RAM (08000H ~ 27FFFH area) is tested in the following procedure.

a) Data in the test area is stored.

b) Write “00H”

c) Read and compare “00H” and then write “55H”

d) Read and compare “55H” and then write “AAH”

e) Read and compare “AAH”

f ) Restore stored data.

If an error occurs in each step, the error print is made. When no
error occurs, the following addresses are sequentially checked.

<Addresses to be checked>

10000H, 10001H, 10002H, 10004H, 10008H
10010H, 10020H, 10040H, 10080H,
10100H, 10200H, 10400H, 10800H,
11000H, 12000H, 14000H, 18000H,
20000H

3

Display

OP display

POPUP display:

4

Check that
Check the end print.

RCPT/PO

:

1 2 0

XE-A21S TEST FUNCTION

– 13 –

5 End of testing

The test will automatically be terminated and the printer prints as
follows.

When the
test ends normally

:

120

5 End of testing.

The test will automatically be terminated and the printer prints as
follows.

When the
test ends normally

:

121

When an error occurs:

= 1: Data error x = 2: Address error

(*) x

RAM ERROR X *****h

120

(*) When an error occurs, the printer outputs the error message

and then the address where the error has occurred in the
area “*****”.

10) CPU INTERNAL RAM TEST

1 Key operation

1 2 1

2 Test procedure

The test program checks internal RAM (20Kbyte) of the CPU.
The contents of the memory are lost after this test.
RAM (00400H - 053FFH area) is tested in the following procedure.

a) Data in the test area is stored.

b) Write “00H”

c) Read and compare “00H” and then write “55H”

d) Read and compare “55H” and then read “AAH”

e) Read and compare “AAH”

f ) Stored data is restored.

g) If an error occurs in each step, the error print is made. When no

error occurs, the following addresses are sequentially checked.

<Addresses to be checked>

01000H, 01001H, 01002H, 01004H, 01008H
01010H, 01020H, 01040H, 01080H,
01100H, 01200H, 01400H, 01800H,
02000H, 04000H

3 Display

OP display

POPUP display:

4 Check that

Check the end print.

RCPT/PO

:

1 2 1

When an error occurs:

= 1: Data error x = 2: Address error

(*) x

RAM ERROR X *****h

121

(*) When an error occurs, the printer outputs the error message

and then the address where the error has occurred in the
area “*****”.

11) CPU INTERNAL ROM TEST

1 Key operation

1 4 0

2 Test procedure

The test program checks that the checksum of the CPU internal
flash ROM (C0000H - FFFFFH) is correct.
The lower two digits of the checksum should be 10H.

3 Display

OP display

POPUP display:

4 Check that

Check the end print.

5 End of testing

The test will automatically be terminated and the printer prints as
follows.

When the
test ends normally

When an error occurs:

RCPT/PO

:

1 4 0

:

ROM

RAM ERROR X *****h

ROM

********
********

********
********

140

140

XE-A21S TEST FUNCTION

– 14 –

12) AD CONVERSION PORT TEST

1

Key operation

1 6 0

2

Test procedure

The AD value of each AD conversion port is sequentially displayed
for every 1 sec.

3

Display

OP display

POPUP display:

(*)

X

=

1: Head temperature X = 2: Head voltage X = 3: Battery voltage

(*) **** = A /D value

4

Check that

Check that the AD value is within the reference range.

5

End of testing
When any key is pressed, the test is terminated and the AD value at
the terminating point is printed.

End print:

RCPT/PO

:

1 6 0 X

HEAD TEMP
HEAD VOLTAGE
BATTERY VOLTAGE

* * * *

160

***
***
***

13) WINDING SPOOL CHECK TEST

1

Key operation

1 7 3

2

Test procedure
The winding spool motor is rotated for 2 sec.

3

Display

OP display

POPUP display:

4

Check that

The motor of the winding spool is rotated.

5

End of testing

The test will automatically be terminated and the printer prints as
follows.

End print:

14)

USB COMMUNICATION TEST 1

RCPT/PO

:

1 7 3 .

173

(ID/ADDRESS PRINT)

1

Key operation

5 2 0

2 Test procedure

The USB revision, the vendor ID, the product ID, and the device
address assigned by the host are printed.

RCPT/PO

3

Display

OP display

POPUP display:

4

Check that
Check the end print.

5

End of the test
The test will automatically be terminated and the printer prints as
follows.

print:

:

5 2 0

USB Rev. Ver. XXX
VENDOR ID
PRODUCT ID XXX
DEVICE ADDRESS XXX

XXX

520

15) USB COMMUNICATION TEST 2
(DATA TRANSFER)

1

Key operation

5 2 1

2

Test procedure

The communication test between the USB and the PC is performed
in the following procedures. The communication program is required
on the PC side, too.

a) Execute data transfer by the USB test program of the PC to

check to confirm that data transfer can be performed.

b) Execute the USB communication test 2 diag of the ECR.

c) Start the USB communication test program on the PC side, and

select the continuous transfer test.

d) Specify the folder which includes communication data (logo data)

in the test program, and execute data transfer.

e) The program on the PC side sends communication data in the

specified folder to the ECR. The ECR receives the communica­tion data and saves them in the SRAM once.

f ) The ECR resend the received data to the PC side.

g) The program on the PC side verifies the data from the ECR and

displays a message if there is any discrepancy.
(The communication is continued.)

h) Procedures of d) ~ f) are repeated.

(*) If there are two or more kinds of logo data in the specified folder

on the PC side, send data are changed in the sequence of the
file names. When the last file is processed, the process returns
to the first file.

Error print list

USB NO CONNECT Host not detected

USB DATA VERIFY ERROR Data verify error

USB TIMEOUT Timeout error

3

Display

OP display

POPUP display:

4

Check that
Check the end print.

RCPT/PO

Error print Error content

:

5 2 1

XE-A21S TEST FUNCTION

– 15 –

5

End of the test
When any key is pressed, the end print is made to terminate the
diag. When any error occurs, the error print is made to terminate the
diag.

Print

:

521

5 End of the test

When any key is pressed, the end print is made to terminate the
diag. When any error occurs, the error print is made to terminate the
diag.

Print

:

USB Rev. Ver. XXX
VENDOR ID XXX
PRODUCT ID

522

XXX

Error print:

USB NO CONNECT

521

16) USB COMMUNICATION TEST 3
(PROCESS INSPECTION)

1

Key operation

5 2 2

2

Test procedure

a) The USB data send is performed in the production process in the

following procedures. The communication program is required on
the PC side, too.

b) The USB communication test 3 diag of the ECR is performed.

c) Start the USB communication test on the PC side, and select the

process test.

d) Specify the folder which includes the communication data (logo

data) in the test program, and execute data send.

e) The program on the PC side sends the communication data in

the specified folder to the ECR. The ECR receives the communi­cation data and saves them in the SRAM.

f ) The ECR resends the received data to the PC side.

g) The program on the PC side verifies the data from the ECR, and

sends the verification result (error) to the ECR.

h) The ECR prints the error received from the PC side. If the host is

not connected or if the communication cannot be made, an error
print is made.

i ) If the verified result sent from the PC side is correct, the USB

revision, the vendor ID, and the product ID are printed.

(*) The test is not terminated by pressing any key during the test. If

data are not sent from the PC in 10 sec after starting the diag
on the ECR side, the timeout error is printed and the diag is ter­minated.

Error print list

USB NO CONNECT Host not detected

USB DATA VERIFY ERROR Data verify error

USB TIMEOUT Timeout error

3

Display

OP display

POPUP display:

RCPT/PO

Error print Error content

:

5 2 2

Error print:

USB NO CONNECT

522

17) SLEEP MODE TEST

1 Key operation

5 5 0

2 Test procedure

Check to confirm that the machine has entered the sleep mode
(display OFF, Dp ON), and wait for a change in status (key input,
change in RS port).

3 Display

OP display

RCPT/PO

:

.

POPUP display:

4 Check that

• The display must be turned off. (Except for Dp)

• When a key is pressed, the machine must be reset from the sleep
state.

5 End of the test

The test will automatically be terminated and the printer prints as
follows.

End print:

550

18) SD CARD TEST 1 (SD CARD INFORMATION)

1 Key operation

6 2 0

2 Test procedure

The SD card is detected and the write protect status is displayed.
After completion of the test, the SD card register value is printed.

Error print list

SD CARD NO DETECT SD Card not detected

SD READ ERROR SD read error

RCPT/PO

Error print Error content

4

Check that
Check the end print.

XE-A21S TEST FUNCTION

– 16 –

3 Display

OP display

POPUP display:

(*)

X = SD card detection

1  SD card YES

(*)

Y = Write Protect detection

1  Write Protect state

:

6 2 0 X-Y

X-Y

2 : SD card NO

2 :

Write Protect

NO

5

End of the test
When any key is pressed, the end print is made and the diag is ter­minated.

Print

:

621

4

Check that

Check to confirm that the card is properly detected and the write
protect is properly detected.

5 End of the test

When any key is pressed, the SD card register is read and the end
print is made.

Print

:

620

XXXXXXXXXXXXXXXX

CID

XXXXXXXXXXXXXXXXh

CSD

XXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXh

OCR

12345678

--

--

h

Error print:

******

620

(*)

****** = Error print (Refer to the error print.)

19) SD CARD TEST 2 (DATA READ/DATA WRITE)

1 Key operation

6 2 1

2 Test procedure

a) Perform the SD card read/write test in the following procedures.

b) Create a file named “SD_TEST.SDA” in the SD card and write the

logo data in the RAM of the main unit to the SD card. If there is a
file of the same file name at that time, the file is overwritten.

c) After completion of writing, data are read from the SD card.

d) The read data and the logo data in the RAM are verified. If there

is any discrepancy, the error print is made and the test is auto­matically terminated.

e) The procedures of a) ~ c) are repeated.

Error print list

SD NO CONNECT SD Card not detected

SD WRITE PROTECT SD Card write protect

SD READ ERROR SD read error

SD WRITE ERROR SD write error

SD DATA VERIFY ERROR Data verify error

3 Display

OP display

POPUP display:

4

Check that

Check that there is no error.

RCPT/PO

Error print Error content

:

6 2 1

Error print:

*******

(*)

****** = Error print (Refer to the error print.)

621

20) SD CARD TEST 3 (PROCESS INSPECTION)

1 Key operation

6 2 2

2 Test procedure

The SD card detection, the write protect status display, and the read/
write test are performed.

a) The SD card detection and the write protect detection are

displayed.

b) When any key is pressed, the tests of c), d), and e) are per-

formed. In the case of “Not detected” or “Write protect”, an error
print is made and the test is terminated.

c) Create a file named “SD_TEST.SDA” in the SD card and write the

logo data in the RAM of the main unit to the SD card. If there is a
file of the same file name at that time, the file is overwritten.

d) After completion of writing, data are read from the SD card.

e) The read data and the logo data in the RAM are verified. If there

is any discrepancy, the error print is made and the test is auto­matically terminated.

(*) The register ID of the SD card is not printed.

Error print list

SD NO CONNECT SD Card not detected

SD WRITE PROTECT SD Card write protect

SD READ ERROR SD read error

SD WRITE ERROR SD write error

SD DATA VERIFY ERROR Data verify error

3 Display

OP display

POPUP display:

(*)

X = SD card detection

1  SD card YES

(*)

Y = WP detection

1  Write Protect state

4

Check that

• Check to confirm that the card is properly detected and the write
protect is properly detected.

• Check that there is no error.

RCPT/PO

Error print Error content

:

6 2 2 X-Y

X-Y

2 : SD card NO

2 :

Write Protect

NO

XE-A21S TEST FUNCTION

– 17 –

5 End of the test

The test will automatically be terminated and the printer prints as
follows.

Print

:

622

5 End of the test

When any key is pressed under the clock display state, the test is
completed and the end print is made.

When the
test ends normally :

161

Error print:

*******

(*)

****** = Error print (Refer to the error print.)

622

21) CONTINUOUS DIAG FOR THE FTC

(*) Winding is performed regardless of ON/OFF of the winding motor.

1 Key operation

1 6 1

2 Test procedure

This is the diag for inspection (FTC) of the main PWB unit.
The following individual diag is performed continuously.
(Even though an error occurs, the diag is continued.)

No. Code Description Operation

1 100 D I SP L AY

2 102 PRINTER TEST It proceed to the next item by the

3 106 PRINTER

4 110 DRAWER OPEN

5 120 EXTERNAL

6 121 INTERNAL RAM

7 140 INTERNAL ROM

8 173 W I ND I NG

9 107 CLOCK

3 Display

The display must be the same as that of the individual diag display.

4 Check that

• Check that the buzzer sound, the key input, and the display are
free from abnormality.

• Check that there is no error after completion of all the diag tests.

RCPT/PO

BUZZER TEST

SENSOR TEST

TEST

RAM TEST

TEST

TEST

MOTOR TEST

DISPLAY TEST

It proceed to the next item
after any key is pressed.

automatic operation after it ends.

It proceed to the next item
after any key is pressed.

It proceed to the next item by the
automatic operation after it ends.

It proceed to the next item by the
automatic operation after it ends.

It proceed to the next item by the
automatic operation after it ends.

It proceed to the next item by the
automatic operation after it ends.

It proceed to the next item by the
automatic operation after it ends.

When any key is pressed, the diag
is terminated.

When an error occurs:

*****

161

An error print is made after completion of each item.
Same as the error print of each diag.

22) CONTINUOUS DIAG FOR THE PROCESS

(*) Winding is made regardless of the setting.

1 Key operation

1 6 2** * *

(*)

**** = Sum check code on each model (omissible)

2 Test procedure

This is the inspection diag in the assembly process.
The following individual diag is performed continuously.
(Even though an error occurs, the diag is continued.)
(*) Voltage conditions of dry cells: 1.2V or more (for each cell) for

No. Code Description Operation

1 100 D I SP LAY

BUZZER TEST

2 102 PRINTER TEST It proceed to the next item by the

3 106 PRINTER

SENSOR TEST

4 104 KEYBOARD

TEST

5 105 MODE SWITCH

TEST

6 110 DRAWER

OPEN TEST

7 120 EXTERNAL

RAM TEST

8 121 INTERNAL RAM

TEST

9 140 INTERNAL ROM

TEST

10 550 SLEEP MODE

TEST

11 160 AD

CONVERSION
PORT TEST

12 173 W I ND IN G

MOTOR TEST

13 107 CLOCK

DISPLAY TEST

RCPT/PO

150Ω load.

It proceed to the next item
after any key is pressed.

automatic operation after it ends.

It proceed to the next item
after any key is pressed.

It proceed to the next item by the
automatic operation after it ends.

It proceed to the next item by the
automatic operation after it ends.

It proceed to the next item by the
automatic operation after it ends.

It proceed to the next item by the
automatic operation after it ends.

It proceed to the next item by the
automatic operation after it ends.

It proceed to the next item by the
automatic operation after it ends.

It proceed to the next item
after any key is pressed.

It proceed to the next item
after any key is pressed.

It proceed to the next item by the
automatic operation after it ends.

When any key is pressed, the diag
is terminated.

XE-A21S TEST FUNCTION

– 18 –

3 Display

The display must be the same as that of the individual diag display.

4

Check that

• Check that the buzzer sound, the key input, and the display are
free from abnormality.

• Check that there is no error after completion of all the diag tests.

5 End of the test

When any key is pressed under the clock display state, the test is
completed and the end print is made.

When the
test ends normally

:

162

3 SD CARD TEST

(SD CARD TEST 2
JOB621)

(*) Though an

error occurs,
the test is con­tinued.

4 COUNT UP The number of repeat of the display is

3 Display

1. The logo data in the machine is writ­ten into the SD card. The data in the
SD card is overwritten.

2. After completion of writing, the data
written into the SD card are read.

3. The logo data and the read data are
verified. In case of an error, the error
print is made and the test is contin­ued. (Write, read and verify are per­formed only once, and the process
goes to 4).

counted up.

When an error occurs:

An error print is made after completion of each item.
Same as the error print of each diag.

*****

162

23) DIAG FOR THE EMI/EMC EVALUATION

(*) Winding is made regardless of the setting.

1 Key operation

1 6 3*

(*) * = Operation interval (min) including the diag execution time.
When it is omitted, the diag is continuously performed.

2 Test procedure

This is the diag for the EMI/EMC evaluation.
The following procedure is repeated. When an error occurs, the
number of errors is saved in the memory, and it is printed when the
diag is completed.

RCPT/PO

OP display :

POPUP display:

(*)

******

diag is displayed.

4 End of the test

When any key is pressed, the test is terminated.

* * * * * *

= The number of repeat of the

* * * * * *

24) DIAG FOR THE TEMPERATURE RISE TEST

(*) Winding is made regardless of the setting.

1 Key operation

1 6 4*

(*) * = Operation interval (min) including the diag execution time.
When it is omitted, the diag is continuously performed.

2 Test procedure

This diag is used for the temperature rise test.
NO SALE is repeated.

3 Display

OP display :

POPUP display:

(*)

******

diag is displayed.

RCPT/PO

* * * * * *

* * * * * *

= The number of repeat of the

No. Description Operation

1 NO SALE PRINT

2 USB COMMUNI-

CATION TEST
(USB COMMUNI­CATION TEST 3
JOB522)

(*) However, the

USB revision,
the vendor ID,
and the prod­uct ID are not
printed.

(*) Though an

error occurs,
the test is con­tinued.

1. The logo data are received from the
PC. For the software on the PC side,
use the same tool as that of the XE­A203U.

2. The received logo data are sent to
the PC.

3. The program on the PC side verifies
the data returned from the ECR.

4. In case of an error, the error print is
made and the test is continued.

5. Though a communication error or
the data verify error occurs or when
the ECR cannot be recognized, the
PC and the ECR perform retry oper­ation to reset the operation.
After completion of communication
on the PC side, the number of retry
operations is displayed.

4 End of the test

When any key is pressed, the test is terminated.

3.KEY CODE TABLE

XE-A21S

2

PF

001 003 019 035 051 067 083 099 115 129 145

000 016 017 033 049 065 081 097 096 128

004 020 036 032 048 064 080 084 100 148

005 021 053 052 068 069 085 101 149

Sum check code: 3417

XE-A21S TEST FUNCTION

– 19 –

002 018 034 050 066 082 098 114 131 147

144

132

B

B

B

D

D

D

D

C

C

C

C

B

A

1/4

12345678

12345678

12345678

12345678

f2

a2

e2

d2

dp 2

c2

g2

b2

f

b

d

dp

c

g

e

a

0.1uFC50.1uF

C5

VCC

5

9

15

19

6

12

16

Q2

Q4

Q6

Q02Q1

Q3

Q5

Q7

D03D14D27D38D413D514D617D718OC1CLK

IC1

IC1

D5

D6

D7

D1

D3

D4

D2

D0

D[0..7]

D[0..7]

IC18B

IC18B

VCC

VCC

RP2

RP2

VCC

A[0..16]

A[0..16]

6

147

4

5

RP3

10K

RP3

10K

1
2
3
4
5
6
7
8
9

10K

10K

R4

R3

R2

R1

1
2
3
4
5
6
7
8
9

10KR410K

10KR310K

10KR210K

10KR110K

147

IC18C

IC18C

SN74HC32

SN74HC32

A8

A6

A5

A7

VCC

8

9

A9

A4

IC18A

IC18A

10

A11

A10

A2

A1

A3

147

1

/CS0

SN74HC32

SN74HC32

A12

A14

A13

A0

ENA12

VCC

VCC:20pin

GND:10pin

74HC374

74HC374

11

3

2

/WR

147

IC18D

IC18D

A15

A16

VCC

IN2

IN12

ENA22

2

R12

R12

10K

10K

SN74HC32

SN74HC32

11

12

KST22

KST32

/WR

NOT INSTALL

C9

33pFC933pF

+

+

12

VDD

C7

C7

C6

0.1uFC60.1uF

13

VCC

SN74HC32

SN74HC32

VCC

R22

10K

R22

10K

R23

10K

R23

10K

R24

R24

10K

10K

R5

10KR510K

R28

R28

10K

10K

R27

10K

R27

10K

R26

10K

R26

10K

R25

10K

R25

10K

C4C4

C3C3

100pF*4(C10-C13)

C2C2

C1C1

KST02

KST12

VCC

10uF/50V

10uF/50V

VCC

VCC

RP1

10K

RP1

10K

/RD

R13

R13

C12

33pF

C12

33pF

10K

10K

A15

VDD

32

30

31

A15

VCC

IC3

IC3

NC1A162A143A124A75A66A57A48A39A210A111A012I/O013I/O114I/O215VSS

A16

A14

/CS1

/CS2

/CS0

R17

10k

R17

10k

R21

R21

10K

10K

R16

10K

R16

10K

47

CS050CS149CS248CS3

A19

51

A18

52

A17

53

A16

54

A15

55

A14

56

A13

57

A12

58

A11

59

A10

60

A9

61

VCC

62

A8

63

VSS

64

A7

65

A6

66

A5

67

A4

68

A3

69

A2

70

A1

71

A0

72

D15

73

D14

74

D13

75

D12

76

D11

77

D10

78

D9

79

D8

80

D7

D6

D583D484D3

81

82

IC2IC2

R44 33R44 33

R41 33R41 33

R43 33R43 33

R45 33R45 33

R38

10K

R38

10K

R37

10K

R37

10K

1
2
3
4
5
6
7
8
9

D5

D7

D4

D6

NOT INSTALL

A9

A8

A13

29

28

27

WE

A13

CS2

A7

A5

A12

A6

/WR

/RD

45

46

44

RD

WR

BHE

D2

D187D088AN7

86

85

R48 33R48 33

R49 33R49 33

R46 33R46 33

R47 33R47 33

D2

D1

D3

A11

24

25

A926A8

OE

A11

A3

A4

C8

33pFC833pF

C11

C11

TP1TP1

43

41

42

HLDA

HOLD

CBCLK

M30624MWP-362FP

AN6

90

89

/LAT2

/STB12

D0

A10

A2

33pF

33pF

23

40

91

VPON

3

/CS2

NOT INSTALL

VDD

22

A10

A1

39

ALE

AN5

92

D7

21

CS1

A0

38

CLKOUT

AN4

93

33pF

33pF

R14

R14

C18

C18
10K

10K

D4

D6

D3

D5

18

17

I/O3

I/O519I/O620I/O7

I/O4

LP621024DM-70MM/ CY62128BLL-70SXC SOIC

LP621024DM-70MM/ CY62128BLL-70SXC SOIC

16

D1

D0

D2

/SD_CD 4

/SD_POW 4

/SD_CS 4

SD_RXD 4

DR1 2

/SD_WP 4

SD_TXD 4

SD_CLK 4

/SD_POWER

SD_RXD

/SD_CD

SD_TXD

SD_CLK

/SD_WP

/SD_CS

32

35

31

37

33

36

34

CLK0

CLK1

TXD0

TXD1

RTS0

RXD0

RXD1

CLKS1

AN2

AVSS

VREF

SIN4

AN3

AN1

AN0

AVCC

94

98

95

97

99

96

100

VDD

P1012

P1002

P972

+

+

12

VBAT3

VCC

/STB22

R39

R39

VCC

TB5OUT
TB5IN
TA1OUT/V
TA1I N/ V
TA2O UT W
TA2I NW
TBEOUT
TB3IN
TA4OUT/U
TA4I N/ U
INT0
INT1
INT2
NMI
VCC
XIN
VSS
XOUT
RESET
XCOUT
XCIN
CNVSS
BYTE
CLK3
SIN3
SOUT3
TB3IN
TB4IN
CLK4
SOUT4

VDD

C10

C10

4.7UF/50V

4.7UF/50V

Not Install

C19

C19

VCC

IC6

IC6

VCC

Not Install

10K

10K

R42

R42

R15

R15

VCC

R51

R51

47K

47K

30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11

10
9
8
7
6
5
4
3
2
1

CN2

CN2

VCC

0.1uF

0.1uF

BD0

BD1

18

B0

A0

2

D1

D0

10K

10K

10K

10K

R53

R53

100K

100K

CN3

CN3

TEST PIN

TEST PIN

VCC

not install

17

3

BD2

16

B1

A1

4

D2

R50

R50

12345

BD3

15

B3

B2

A2

A3

5

D3

DAT 2

R42 XE-A20W ONLY

CNVss

BD[0..7]

BD4

BD5

14

13

B5

B4

A4

A5

7

6

D4

D5

10K

10K

XE-A21S ONLY

CLK 2

P952

P96

2

C13

C13

RXDPRG

TXDPRG

R65 0R65 0

R64 0R64 0

/SD_WP

/SD_CD

6

789

BD4

BD0

BD1

BD6

BD2

BD5

BD3

BD6

BD7

74ALS645

74ALS645

12

11

B7

B6

A6

G

A7

DIR

IC7

IC7

9

1

8

19

D7

D6

/RD

R52

10K

R52

10K

XE-A203U/A

BZ1

BZ1

+

+

B

B

PIEZO BZ

PIEZO BZ

R40

R40

D1

1SS133D11SS133

1K

R581KR58

/RESUSB

R610R61

R62

R62

P902

P922

P912

P942

P932

1000pF

1000pF

Reset IC

12345

VDD

R56

R56

111213141516171819202122232425

10

BD7

BA1

BA3

BA4

BA2

BA6

BA5

Y123Y222Y321Y420Y519Y618Y717Y8

A12A23A34A45A5

A67A78A89OE2

6

A5

A6

A2

A4

A1

A3

VDD

12

1

2345678

D0

VCC3

VCC

3

1

/INTUSB

2

0

X2

330

330

1

47K

47K

R60

R60

CNVss

4

C15

C15

CD5NC

SII

VDD2VSS3OUT

rohm

BD5228/ S80928

BD5228/ S80928

C14

C14

100pF

100pF

R57

R57

820

820

/RESET2

54

/CS1B

16

C17

C17

+

+

D1

X3

/WR_B

15

Y9

A9

10

/WR

D2

C24

C24

C21

C21

C20

C20

2200pF

2200pF

/RD_B

14

11

/RD

C16

C16

D3

Y10

A10

0.1uF

0.1uF

D4

27pF

27pF

18pF

18pF

20W ONLY

10K

10K

1 2

MOTOR 2

IC4

IC4

BA0

A0

R40 XE-A203U/A 21S ONLY

/POFF 3

/DREQUSB

1

3.3K

3.3K

74ABT827

74ABT827

OE1

1

13

10uF/50V,AL

10uF/50V,AL

9

1011121314

D6

D5

D7

0.1uF

0.1uF

2

32.768KHzX232.768KHz

32

BD5228

1

26

1.0-11-26P

1.0-11-26P

15

1617181920212223242526

A4

A2

A0

A1

A3

R19

R19

VCC

R18

R18

CSTLF12MX3CSTLF12M

VCC

Not Install

12

7

8

6

S0

VDD

FSOUT

IC5

IC5

XIN1XOUT2S13LF

3

1

X1

X1

2

21

21

21

21

DATE

2006,09,25

3

3

3

3

REVISION RECORD

ADDED IC18 ,ADDED MODEL XE-A21S

B

REV

CN1

CN1

52806-2610

52806-2610

A6

A5

/WR

/RD

/RESUSB_B

/CS1

/INTUSB

/DREQUSB

C27

1000pF

C27

R6633R66

C25

C25

330pF

330pF

CST12.0MTW

CST12.0MTW

1000pF

R70 0R70 0

C26

C26

91pF

91pF

33

87654

87654

87654

87654

R20

10K

R20

10K

10K

10K

10K

10K

C23

C23

10uF/10V,OS

10uF/10V,OS

+

+

C22

0.1uF

C22

0.1uF

5

VSS

FS781

FS781

4

R63

R63

3.3K

3.3K

CPU CIRCUIT

CHAPTER 6. CIRCUIT DIAGRAM AND PWB LAYOUT

■ MAIN PWB

B

B

B

D

D

D

D

C

C

C

C

B

A A

A A

A A

A

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

– 20 –

B

B

B

D

D

D

D

C

C

C

C

B

A

2/4DRIVING CIRCUIT

12345678

12345678

12345678

12345678

VP

VO 2,3

84

CN4

NOT INSTALL

7

+

-

5

6

MOTOR

1

2

EH-2A

C28

0.1uF

IC8B

BA10393

3

C

DRAWER

123

CN5

Q1

2SD2212

3 2

1

1K

R76

MOTOR1

TP2

2510-3A

STRAIGHT CON

FB2

D18

1N4002

C34

0.1uF

FB1

C66673

JUMPER WIRE(FB1)

VDR

F1

T500mA/250V

VO

C66673

1 2

JUMPER WIRE(FB2)

Q4

2SD2212

2

3

1

1.8K

R77

+

C35

10uF/50V

DR11

3

D

1SS133

D4

1 2

1

EB

2

KRC111S

12

SG

2SK2731

AS

VP

4113512

VS1

VS2

IC11

VCC

ENA1

1

213697

VCC

ENA11

/AS

OUT1

ENA2

ENA2

1

BS

OUT2

IN11

/BS

OUT3

IN1

10

OUT4

IN2

IN2

1

E

2

13

BC

C39

10uF/50V

+

1

2

8

VCONT

LB1838M

GND

GND

14

2SD2212

21

21

21

21

3

3

3

3

VCC

C31

VCC

D2

12

VCC

/S0

/S1

Y0

VCC

IC9

ABC

1234567

KST21

KST11

KST01

2

G

S

1

1SS133

2

/S4

+

C32

/S2

KST31

PE

10uF/50V

0.1uF

/S3

/S4

G2BG1Y7

G2A

C33

3 1

D

P91

P911

/S5

10111213141516

Y5Y4Y3Y2Y1

/S7

0.1uF

Q2

/S6

GND Y6

8 9

2SK2731

74HC138

VCC

/S8

/S9

Y0

VCC

IC10

ABC

1234567

HUPS

2

Q3

P911

C36

G2A

D3

0.1uF

G2BG1Y7

KRC111S

1 3

1

2

/S3

10111213141516

Y5Y4Y3Y2Y1

8 9

1SS133

GND Y6

74HC138

VLED

VCCVP

VCC

CN6

TH 1

/LAT 1

/BSASBS

/AS

R10

10K

C38

47uF

50V

+

12

12345678910111213141516171819202122232425

CN10

C37

0.1uF

f1

c1

b1

d1

a1

d

a

b

c

dp 1

e1

g1

dp

e

f

g

/S1

/S7

/S0

/S2

/S0

/S1

/S2

/S7

/S8

/S8

/RESET

HUPS

C41

CLK 1

/STB1 1

/STB2 1

DAT 1

PE

0.1uF

R81

4.7K

C40

0.1uF

2K

R80

R11

10K

26

1.0-11-26P

PRINTER CN

P95 1

/S9

P90 1

P94 1

/RESET 1

P91 1

P93 1

P92 1

P93

P94

P91

P90

P92

/S3

P96 1

P97 1

P95

P96

P97

10111213141516171819202122232425262728293031323334

/S6

/S5

/VON 3

/S4

/S3

/S4

/S5

/S9

/S6

/VON

123456789

1.25-2-34P

87654

87654

87654

87654

KEY CN

3

R71

56KF

TCOFF

1

84

+

3

2

R73

30KF

VCC

R72

10KF

IC8A

BA10393

-

R75

5.1KF

P100 1

C30

330pF

TH1

C29

0.1uF

R74

10KF

P1011

VO 1,3

VP

B

B

B

D

D

D

D

C

C

C

C

B

A A

A A

A A

A

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

– 21 –

B

B

B

D

D

D

D

C

C

C

C

B

A

3/4POWER CIRCUIT

C

12345678

12345678

12345678

12345678

3

C
3

Q1:HEAT SINK

F2

1

KRA106S

BE

2

KRC106S

21

BE

VP

L1

63uH

IPEAK>12A :100%

with FUSE

32

Q5

KTD998

1

D5
4

-+
3

C42

MYLAR

0.033uF

3.15A

1

2

CN7

D

D

D

D

3
2

BEC

KTD998

1

ZD1

PTZ9.1B

1 2

+

12

C44

16V

4700uF

R83

17.8KF

R85

3.3KF

D6

FMB-G24H

12

R86

18K

R82

10(FUSE)

1

L:ON

6,8pin:N.C

LM2574

1

3
2
4

IC12

5 7

R84

22K

50V

3300uF

+

12

C43

2

BR32

VH-2A

FROM TRANSFORMER

H:OFF

VBAT 1

R94

22K

VDD

VCC

D13

RB721Q

VCC +5V

VCC +5V

VLED +5.8V

2

D11

1

VLED

L2

12

D9

RB060L40

2

Q6

KRC106S

0

R88

24K

R87

1 3

2

D7

1SS133

1 2

1

R89

2.2K
D8
2

TCOFF2

VPON1

/POFF1

VO 1

C

C

C

C

1SS133

PQ1CG2032FZ

4

IC13

HEAT SINK

1

1SS133

D10
2

F3

/VOFF

1

VOUT

VIN

VLED

VCC

180uH

ADJ

1.0A

1N4002

2

1N4002

D12

1

C45

+

12

5

ON/OFF

COM

R91

9.1KF

R90

2.7K

C46

12

1000uF

R92

2.7KF

3

R93

+

ZD2

16V

D14

12

2.7K

NOT

R99

R97

1 2

330uF

PTZ6.2B

12

R96

RB060L40

+

C47

R95

1

C48

INSTALL

100

R100

220

16V

1 2

C49

+

910F

1 2

220uF/50V

8

56K

8

R98

0

+

1uF/50V

1

2

CN8

3.3M

0.1uF(M)

C50

10uF/10V OS

/POFF 1

7

+

5

6

1

+

3

2

2

TJC3-2A(BLUE)

FROM BATTERY

NOT

INSTALL

/VOFF

/VOFF

L:OFF

H,OPEN:ON

12

D15

0.1uF

C51

4

-

IC14B

BA10393

IC14A

BA10393
4

-

R101

3.9KF

B

B

B

B

RB060L40

HEAT SINK

VO 1

VO:23.8V

VO

R7

L3

220uH

2

VOUT

PQ1CG2032FZ

ADJ

4

VIN

IC15

1

R6

P-OFF

ZD3

UDZS5.1B

C53

+

12

10K

D16

5

ON/OFF

COM

+

12

C52

10K

1 2

1000uF/35V

R105

560

RB060L40

1 2

3

220uF/50V

10K

R8

21

21

21

21

3

3

3

3

C54

0.022uF(M)

R9

10K

Q8

KRC106S

1 3

2

12

ZD5

UDZS4.3B

D17

1SS133

1 2

Q7

KRA106S

13

2

R107

33

/VON2

NOT

INSTALL

ZD4

UDZS5.1B

1

2

0.1uF

C55

87654

87654

87654

87654

A A

A A

A A

A

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

– 22 –

B

B

B

D

D

D

D

C

C

C

C

B

A

1 2

C57

1uF

VCC

C56

1uF/50V

+

12

6

4

213

Q9

74HCT04

HAT1089C

4/4SD CARD CIRCUIT

12345678

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12345678

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IC16A

147

G:6pin

D:2,3,4,5pin

S:1pin

5

VCC3

IC16B

147

3 4

CN9

R117

100K

R116

100K

R115

100K

R114

100K

R113

100K

R112

10K

R111

10K

100K

R104

51

R110

R109

10K

74HCT04

IC16C

147

5 6

CSDIVSS

VDD

SCLK

VSS2DORSV

123456789

74HCT04

IC16D

147

RSVCDSWWPGND

101112

R119 33

R118 33

/SD_WP1

/SD_CD1

C59

100pF

9 8

13

C65

1000pF

C64

NOT INSTALL

1000pF

74HCT04

ALPS SCDA2A0300

C63

0.1uF

VCC

14Pin : VCC

7Pin : GND

147

VCC

IC16F

147

IC16E

21

21

21

21

3

3

3

3

1312

74HCT04

1110

74HCT04

C62

100pF

SD_RXD1

WP

#12

COMMON

SD Card Pin Layout

#7

NOT INSTALL

#11

#8

#5

#6

GND

#13

CD

#9

#2

#4

#3

#10

#1

12

VCC3

C66

100uF/50V

+

VCC3

7Pin : GND

14Pin : VCC3

D

D

D

D

IC17A

W

/SD_PO
1

IC17C

C60

C58

100pF

/SD_POW1

1
14

74LV125

7

2 3

/SD_CS1

NOT INSTALL

IC17B

4

VCC3

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

14

/SD_POW1

C

C

C

C

100pF

NOT INSTALL

IC17D

74LV125

7

5 6

SD_TXD1

VCC3

13
14

/SD_POW1

B

B

B

B

74LV125

12 11

SD_CLK1

VCC3

7

10
14

VCC3

C61

74LV125

7

9 8

0.1uF

87654

87654

87654

87654

A A

A A

A A

A

– 23 –

B

B

B

D

D

D

D

1/1

12345678

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12345678

CN1

10

11

12

7

8

9

4

5

6

C

C

C

C

1

2

3

52045-1245

B

A

VLED

12

12

1SS133

1SS133

D30

D20

/S0

/S1

KTA1663 * 7

Q20

3

1

12K

R138

Q19

32

1

12K

R137

Q18

32

1

12K

R136

Q17

32

1

12K

R135

Q16

32

1

12K

R134

Q15

32

1

12K

R133

Q14

32

1

12K

R132

Q13

32

1

12K

R131

Q12

32

1

12K

R130

Q11

32

1

12K

R129

KTA1664 * 3

12

12

12

D24

/S4

/S0

/S1

/S2

/S3

/S4

/S5

/S6

/S7

/S8

/S9

or DTA143ESA

1SS133

1SS133

D25

/S5dp/S7

/S[0..9]

CN13

12

1SS133

D26

/S6

G1

G2

G3

G4

G6

G7

G8

G9

G10

52806-1510

G2

G1

12

12

12

1SS133

1SS133

1SS133

D27

D28

G4

G3

G5

G6 /S8

FROMKEY

D29

/S9

21

21

21

21

G[1..10]

13

/VON

12

11

10

9

/S0

8

/S1

7

/S2

6

MDR

P:2.0mm HOLE ONLY

5

C72

C71

+

4

3

2

1

7

6

5

4

3

2

1

0.1uF

100uF/16V

/S3

/S4

/S5

/S6

/S7

P97

P96

P95

P94

P93

P92

P91

FROM MODE SWITCH

CON3

52045-0745

FROM KEY

CN15

VLEDVCC

123456789101112131415

e

b

f

c

dp

d

a

G7

VLED

FOR POP UP

12

/RESET

OUTPUT

47K

C73

R128

VCC

100pF

COMMON

47K

4.7K

INPUT

P90

R127

47K

R126

47K

R125

47K

R124

47K

R123

47K

R122

47K

R121

47K

VCC

P[90..97]

OUT P UT

COMMON

INPUT

3K

7.2K

2.7K

C

3

3

3

3

KRA101M, KRA106S

GND

KID65083

E

12

12

1SS133

1SS133

1SS133

D23

D21

D22

/S2

/S1

/S3

2

Q30

12

120

3

R148

Q29

12

120

3

R147

Q28

12

120

3

R146

Q27

12

120

3

R145

Q26

12

120

3

R144

Q25

12

120

3

R143

Q24

12

120

3

R142

Q23

12

120

3

R141

Q22

12

120

3

R140

Q21

12

120

3

R139

KRA101M * 10

d

e

G1

G7

G8

G9

G10

c

G3

G5G5G4

G2

G6

b

a

978654321

FOR MAIN DISPLAY KEY

■ KEY IF CIRCUIT

D

D

D

D

g

f

181716151413121110

IC18

P:2.0mm HOLE ONLY

CON2

d

f

c

b

a

g

181716151413121110

181716151413121110

123456789

123456789

F1dpC1

A1

B1eD1

G1

DP1

E1

1

A1gD1

F1

DP

E1

C1

B1

G1

/S0

/S1

KID65083AP(DIP)

CN12

52045-3445

C

C

C

C

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

– 24 –

3.5K 300

/RESET

P91

P90

P93

/S7

/S2

P92

/S8

P94

/S4

P95

P96

/S6

P97

/VON

/S5

/S3

/S9

B

10111213141516171819202122232425262728293031323334

B

B

B

B

123456789

FROM MAIN BOARD

87654

87654

87654

87654

2SD2170

A A

A A

A A

A

B

B

B

35

34

33

32

31

30

29

27

26

24 25

B

47

59

46

58

57

4540

56

4439

55

4338

54

42

41

52

51

50

3736

48 49

D

D

D

D

1/1

12345678

12345678

12345678

12345678

C

C

C

C

11

23

22

10

9

21

8

20

7

6

5

4

16 195328

3

15 18

2

14 17

1

13

12

¡ü

A

21

21

21

21

3

3

3

3

48

36

49

37

5038

5152

54

53

55

43

56

44

57

45

58

59

47

FOR KEY I/F BOARD

P97

13

1

12

24

¡ü

14

2

26

25

15

3

27

39

17

5

29

40 28 164

41

18

6

30

42

19

7

31

32

8

21 20

33

10

9

22

34 46

11

23

35

P96

P95

P94

P93

P92

P91

7

6

5

4

3

2

1

1.25mm FPC CN

CN2

■ KEY-MTX CIRCUIT

87654

87654

87654

/S1

1

CN1

D

D

D

D

/S0

/S1

2

3

4

/S3

/S4

/S2

5

6

C

C

C

C

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

/S5

7

– 25 –

8

/S6

/S7

/S8

9

10

11

/S9

12

B

B

B

B

1.25mm FPC CN

FOR KEY I/F BOARD

A A

A A

A A

A

87654

B

B

B

D

D

D

D

C

C

C

C

B

A

1/1

12345678

12345678

12345678

12345678

1312

LED5

LA56S2-S2

1312

G4G7G10

LED6

LA56S2-S2

G5G8 G1

1312

G6

LED7

DISPLAY PWB

LA56S2-S2

11

aabbccdd

10
8
6

e

5

7

gg

9

dpdp

16
15 14
3
2
1

eff

18
17
4

21

21

21

21

11

aabbccdd

10
8
6
5

e

7

gg

9

dpdp

16
15 14
3
2
1

eff

18
17
4

11
10
8
6
5

f

7

gg

9
16
15 14
3
2
1
18

f

17
4

dp dp aabbccddee

3

3

3

3

1312

LED8

LA56S2-S2

G9 G3

1312

LED9

LA56S2-S2

G[1..10]

11

aabbccddeeffggdpdp

10
8
6
5

7
9
16
15 14
3
2
1
18
17
4

aabbccddeeffggdpdp

11
10
8
6
5

7
9
16
15 14
3
2
1
18
17
4

G7

G2G2G6

G1

G10

G9

G4

G8

G3

30 1/6WR33

R29 30 1/6W

R30 30 1/6W

R32 30 1/6W

R31 30 1/6W

R35 30 1/6W

R34 30 1/6W

R36 30 1/6W

G5

87654

87654

87654

87654

■ MAIN DISPLAY CIRCUIT

D

D

D

D

CON1

C

C

C

C

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

– 26 –

978654321

B

B

B

B

181716151413121110

HOLE ONLY

A A

A A

A A

A

B

B

B

D

D

D

D

1/1

12345678

12345678

12345678

12345678

C

C

C

C

B

13

A

21

21

21

21

GND

/VON

0

000

00

MODE SWITCH

SW1

GND

1

2

3

4

5

6

7

8

9

10

/RE-

/S0/S1/S2MOR/S3/S4/S5/S6/S7

SET

12

11

10

9

8

7

6

5

4

3

2

1

FOR KEY I/F BOARD

CN1

P:2.0mm HOLE ONLY

3

3

3

3

■ MODE SWITCH CIRCUIT

D

D

D

D

C

C

C

C

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

– 27 –

87654

87654

87654

87654

B

B

B

B

A A

A A

A A

A

B

B

B

D

D

D

D

1/1

12345678

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12345678

12345678

C

C

C

C

123456789101112131415

CN1

G2'

G3'

G1'

A'

G4'

G7'

G5'

G6'

B'

B

52807-1510

F'

C'

G'

DP'

D'

E'

FROM KEY I /F BOARD

a

11

11

bcdefdpabcdef

10

10

8

86579

12

16

15

321

18

174

11

10

86579

12

16

15

321

18

174

11

10

86579

12

16

15

321

18

174

510912467

6
5
12

g

7
9
16
15
3
2
1
18

gdp

17
4

a

11

bcdefdpabcdef

10
8
6
5
12

g

7
9
16
15
3
2
1
18

gdp

17
4

a

11

bcdefdpabcdef

10
8
6
5
12

g

7
9
16
15
3
2
1
18

gdp

17
4

7

abcdef

6
4
2
1
9

gdp

10
5

R1

27 1/6W

R2

27 1/6W

R3

27 1/6W

R4

27 1/6W

R5

27 1/6W

R6

27 1/6W

A'G'

B'

C'

D'

E'

F'

13

13

LED1

LA56S2-S2

14

14

13

13

LED2

LA56S2-S2

LED3

LA56S2-S2

LED4

LA56S1-S2

14

14

13

13

14

14

8

,

38

3

G4' G3' G2' G1'

G5'

G6'

G7'

A

21

21

21

21

3

3

3

3

■ POPUP CIRCUIT

R7

27 1/6W

87654

87654

87654

DP'

R8

27 1/6W

B

B

B

D

D

D

D

C

C

C

C

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

B

A A

A A

A A

A

87654

– 28 –

B

B

B

D

D

D

D

1/1

12345678

12345678

12345678

12345678

19

20

21

22

23

24

25

26

27

C

C

C

C

10

11

12

13

14

15

16

17

18

B

CN2

TO PRI NTER

123456789

52806-2710

A

21

21

21

21

5VVP

/B

/A

A

B

VP

LAT#

TH

GND

STB1#

GND

5V

STB2#

GND

GNDVPCLK

DAT

VP

VP

5V

PE

LEDK

HUPS

VP 5V

C2

C1

01.uF NOT MOUNT

0.1uF NOT MOUNT

3

3

3

3

■ PRINTER I/F CIRCUIT

D

D

D

D

12345678910111213141516171819202122232425

C

C

C

C

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

– 29 –

26

CN1

52806-2610

TO MAI N PWB

BE CAREFUL FOR DI RECTI ON OF

CONNE CTER !

87654

87654

87654

87654

B

B

B

B

A A

A A

A A

A

PWB LAYOUT

1. MAIN PWB LAYOUT

Top side

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

– 30 –

Bottom side

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

– 31 –

2. KEY INTERFACE PWB LAYOUT

Top side

Bottom side

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

– 32 –

3. PRINTER I/F PWB LAYOUT

Top side

Bottom side

4. REAR DISPLAY PWB LAYOUT

5. DISPLAY PWB LAYOUT

XE-A21S CIRCUIT DIAGRAM AND PWB LAYOUT

– 33 –

COPYRIGHT

No part of this publication may be reproduced,

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without prior written permission of the publisher.

 2006 BY SHARP CORPORATION

All rights reserved.

Printed in Japan.

stored in a retrieval system, or transmitted.

In any form or by any means,

SHARP CORPORATION

Information and Communication Systems Group

Quality Assurance Department
Yamatokoriyama, Nara 639-1186, Japan

2006 November Printed in Japan t