Sharp ER-A520, ER-A530 User Manual

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SERVICE MANUAL

ER-A520

ER-A530

ELECTRONIC
CASH REGISTER

MODEL

CONTENTS

CODE : 00Z

ERA520USME

ER-A520
ER-A530

(U, A version)

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

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

CHAPTER 3. MASTER RESET AND PROGRAM RESET. . . . . . . . . 6

CHAPTER 4. HARDWARE DESCRIPTION. . . . . . . . . . . . . . . . . . . . 7

CHAPTER 5. DIAGNOSTIC PROGRAM . . . . . . . . . . . . . . . . . . . . . 14

CHAPTER 6. IPL FROM EP-ROM . . . . . . . . . . . . . . . . . . . . . . . . . . 19

CHAPTER 7. CIRCUIT DIAGRAM AND PWB LAYOUT . . . . . . . . . 20

PARTS GUIDE

Parts mark ed w ith "!" 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 pub lished to be used

SHARP CORPORATION

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

CHAPTER 1. SPECIFICATIONS

k

1. APPEARANCE

ER-A520

Front view

Customer display (Pop-up type)

Printer cover

Receipt paper

Operator

display
Journal window
Keyboard

Mode

Drawer

switch

Rear cover

Drawer lock

ER-A530

Front view Rear view

Printer cover

Receipt paper
Journal window

Keyboard

Drawer
Drawer lock

Customer display
(Pop-up type)

Operator

display

Mode
switch

Rear cover

2. RATING

Model ER-A520/530
Weight 31.7lbs (14.4kg)
Dimensions 421 (W) x 427 (D) x 297 (H) mm

16.6 (W) x 16.8 (D) x 11.7 (H) inch
10%, AC 60Hz

Power source 120V

m

Power consumption Stand-by 11W, Operating 47W (max.)
Working temperature 0°C~40°C (32°F to 104°F)

3. KEYBOARD

3-1. KEYBOARD LAYOUT

ER-A520

Type Normal keyboard
Key stroke 3.5
Key pitch 19 (W) x 19 (H) mm

ER-A530

Type Flat key
Key stroke 0.8
Key pitch 18 (W) x 15 (H) mm

0.5 mm

m

0.2 mm

m

Rear view

Printer
cover lock
(left side)

Printer
cover loc
(left side)

3-2. KEY LAYOUT

ER-A520 KEYLAYOUT

■ STANDARD KEY LAYOUT

PLU/UPC

CASH#

@

FOR

7
4
1

89
56
2

0

CL

3

00

SLIP

CONV

%1
%2

RFND

RCPT

RA
PO

VOID

NC

PBLU

FINAL

TAX

TAX

SHIFT

#/TM

■ TEXT PRESET KEY LAYOUT

NUM

^

V

~

`

`

O

-2

@/FOR

7
4
1

89
56
2

0

CL

3

00

Note: All the keys except the receipt paper feed and journal paper feed

keys can be re-positioned.

■Key names

RECEIPT Receipt paper feed key

2

JOURNAL Journal paper feed key

2

[0]~[9], [00] Numeric keys
[ • ] Decimal point key
CL Clear key
@/FOR Multiplication key
RFND Refund key
VOID Void key
AMT Amount entry key
CASH# Cashier code entry key
PLU/UPC PLU/UPC key
INQ PLU/UPC inquiry key
PRICE CHANGE UPC price change key

-

Discount 1 key
%1, %2 Percent 1 and 2 keys
NC New check key
PBLU Previous balance key
FINAL Final key
NS No-sale key
TAX SHIFT TAX 1 shift key
TAX Manual tax key
MDSE SBTL Merchandise subtotal key
1 ~ 20 Department keys
AUTO1~AUTO2 Automatic sequencing 1 and 2 keys
RA Received-on-account 1 key
PO Paid-out 1 key
FS SHIFT Food stamp shift key
FS TEND Food stamp tender key
CH1, CH2 Charge 1and 2 keys
CONV Currency conversion key
CHK Check 1 key
SBTL Subtotal key
CA/AT Cash/amount tendered key
RCPT Receipt print key

PRICE

CHANGE

5
4
3
2
1

A
B
C
D
E

AUTO

AMT

10

15

9

14

8

13

7

12

6

11

F
G
H

=-+

I

><

Pt

J

FS

INQ

SHIFT

1

FS

20
19
18
17
16

K

L
M
N
O

AUTO

TEND

2

NS

CH1

CHK

CH2

MDSE

SBTL

SBTL

CA/AT

(Back
Space)

&

%$#

P
QWV
RZ

S

£

T

X

U

(/@*')

Y

!.,;:

?

ER-A520U/ER-A530U SPECIFICATIONS

– 1 –

SLIP Slip printer key
#/TM Non-add code/Date & time display key

Note: The following function keys can optionally be mounted in place of

those shown in the figure of the standard keyboard layout. For
details, please consult your authorized SHARP dealer.

■Optional keys

DEPT# Dept. number key
%3 ~ %5 Percent 3 thru 5 keys

2 ~ -5 Discount 2 thru 5 keys

-

CH3 ~ CH9 Charge 3 thru 9 keys
CA2 ~ CA5 Cash 2 thru 5 keys
CONV2 ~ CONV4 Currency conversion 2 thru 4 keys
RA2 Received-on-account 2 key
PO2 Paid-out 2 key
AUTO3 ~ AUTO10 Automatic sequencing 3 thru 10 keys
SRVC Service key
TRAY SBTL T ray subt ota l key
RETURN Return key
CHK2~CHK5 Check 2 through 5 keys
TRANS OUT Transfer out key
TRANS IN Transfer in key
CA TIP Cash tip key
CH TIP Charge tip key
TIP PAID Tip paid key
EAT IN1~EAT IN 3 E a t i n 1 thr u 3 k e ys
TAX2 SHIFT~TAX4 SHIFT Tax 2 thru 4 shift keys
DEPO Deposit key
DEPORFND Deposit refund key
LEVEL# PLU level shift number key
RP SEND Remote printer send key
GRT EXEMPT Gratuity exempt key
OPEN TARE Tare entry key
REPEAT Repeat entry key
GASSBTL Gasoline sales subtotal key
P-SHIFT# Price shift number key
SCALE Scale entry key
L1~L5 PLU level shift 1 thru 5 keys
P1~P6 Price level shift 1 thru 6 keys
PRINT Validation print key
CVCNT Cover count entry key
NO DEL No delete key
BS Bill separation key
BT

Bill totalize/ Bil l tra nsf er key (CHE CK-A DD)
BIRTH Birthday entry key
RFND SALES Refund sales key
WASTE Waste mode key
C NEXT Condiment next key
C CANCEL C ondim ent cancel key
EDIT TIP Edit tip key
GLU RECALL Table# recall k ey
000 Numeric key

Note: The department and direct PLU keys may be expanded. If you

require expansion of the department or direct PLU keys, please
contact your dealer.

ER-A530 KEYLAYOUT

■ STANDARD KEY LAYOUT

RECEIPT

79

67

56

45

34

23

12

1

JOURNAL

80

68

57

46

35

24

13

97

91

92

93

94

95

81

82

83

84

85

69

70

71

72

73

58

59

60

61

62

47

48

49

50

51

36

37

38

39

40

25

26

27

28

29

14

15

16

17

18

2

3

4

5

6

7

98

96

87

88

86

75

76

74

63

64

65

52

53

54

41

42

43

31

32

30

20

21

19

9

10

8

L1 L2 L3

99

100

89

90

77

78

SERV

#

66

@

FOR

55

789

44

456

33

123

22

000

11

■ TEXT PRESET KEY LAYOUT

[]

{}

¿

”

”

^

&

U

BN

Ñ

I

M

?

(

OP

,

>

<

)=

-

/

;:
.

_

@
FOR

+

CL

7

8

4

5

1

2

00

0

000

JOURNAL

RECEIPT

!

#$%

@

1234567890

QW

ERTY

S

D

GHJ KL

A

(SHIFT)

Note:

(DC)

F

X

CV

Z

• All keys except the receipt paper feed and journal paper feed
keys may be re-positioned.
If you want to change the keyboard layout, please consult your
dealer.

• Please note that the price lookup/subdepartment/UPC key
([PLU/SUB]) and the previous balance key ([PBLU]) are shown
as [PLU/UPC] and [PBLU] urespectively in this manual.
PLU/UPC PBAL

■Key names

RECEIPT Receipt paper feed key

2

JOURNAL Journal paper feed key

2

[0] ~ [9], [00], [000] Numeric keys
[ • ] Decimal point key
CL Clear key
@/FOR Multiplication key
RCPT Receipt print key
RFND Refund key
VOID Void key
PLU/SUB Price lookup/subdepartment/UPC key
[ 1] ~ [100] Direct price lookup keys
L1~L3 PLU level shift 1 thru 3 keys
NC New check key
SRVC Service key
FINAL Final key
PBAL Previous balance key

-

Discount 1 key
% Percent 1 key
INQ PLU/UPC inquiry key
SERV# Server code entry key
AUTO1 ~ AUTO3 Automatic sequencing 1 thru 3 keys
CONV Currency conversion key
CH1 ~ CH3 Charge 1 thru 3 keys
CHK Check 1 key
MDSE SBTL Merchandise subtotal key
SBTL Subtotal key
CA/AT Cash/amount tendered key
RP SEND Remote printer send key

Note: The following function keys can optionally be added in place of

those shown in the figure of the standard keyboard layout. For
details, please consult your authorized SHARP dealer.

%RCPT

INQVOID

PLU/
SUB

CL

000

9
6
3

SEND

PBAL

SRVC

MDSE

SBTL
SBTL

SBTL

AUTO

1

AUTO

2

AUTO

RP

3

CONV

NCRFND

CH1

CH2

CH3FINAL

CHK

CA/AT

BACK

SPEACE

CA/AT

ER-A520U/ER-A530U SPECIFICATIONS

– 2 –

■Optional keys

DEPT# Dept. number key
%2 ~ %5 Percent 2 thru 5 keys

2 ~ -5 Discount 2 thru 5 keys

-

CH4 ~ CH9 Charge 4 thru 9 keys
CA2 ~ CA5 Cash 2 thru 5 keys
CONV2 ~ CONV4 Currency conversion 2 thru 4 keys
RA1, RA2 Received-on-account 1 and 2 keys
PO1, PO2 Paid-out 1 and 2 keys
AUTO4 ~ AUTO10 Automatic sequencing4 thru 10 keys
CHK2 ~ CHK5 Check 2 through 5 keys
TRANS OUT Transfer out key
TRANS IN Transfer in key
CA TIP Cash tip key
CH TIP Charge tip key
TIP PAID Tip paid key
EAT IN1 ~ EAT IN3 Eat in 1 thru 3 keys
TAX1 SHIFT ~

Tax 1 thru 4 shift keys

TAX4 SHIFT
DEPO Deposit key
DEPO RFND Deposit refund key
TAX Manual tax key
TRAY SBTL Tray subtotal key
RETURN Return key
GAS SBTL Gasoline sales subtotal key
#/TM Non-add code/Date & time display key
NS No-sale key
SCALE Sc ale entry key
LEVEL# PLU level shift number key
L4, L5 PLU level shift 4 and 5 keys
P-SHIFT# Price shift number key
P1 ~ P6 Price level shift 1 thru 6 keys
PRINT Validation print key
CV CNT Cover count entry key
SLIP Slip printer key
BS Bill separation key
BT Bill totalize/Bill transfer key (CHECK-ADD)
NO DEL No delete key
GRT EXEMPT Gratuity exempt key
OPEN TARE Tare entry key
REPEAT Repeat entry key
AMT Amount entry key
PRICE CHANGE UPC price change key
BIRTH Birthday entry key
RFND SALES Refund sales key
WASTE Waste mode key
C NEXT Condiment next key
C CANCEL Condiment cancel key
EDIT TIP Edit tip key
GLU RECALL Table# recall key
FS SHIFT Food stamp shift key
FS TEND Food stamp tender key

Note: Department and direct PLU keys can be expanded. If you require

expansion of the department or direct PLU keys, pleas e contact
your authorized SHARP dealer.

4. MODE SWITCH

4-1. MODE SWITCH AND MODE KEYS

Operative range

MA
SM

M

X / Z

1

2

REG

MGR

X

1/Z1

X2/Z

2

• Submanager key (SM)

SM

OP
OFF

PG

PGM

(SRV) (SRV')

• Manager key (MA)

MA

• Operator key (OP)

OP

The mode switch has these settings:

OFF: This mode locks all register operations.

No changes may occur to register data.

OP X/Z: This setting a llows cash iers to take an X or Z reports for their

sales information. This mode can also be used for displaying
the date/time and printing the employee's arrival/departure
times. This mode can be also used to toggle receipt state "ON"
and "OFF" by pressing the [RCPT] key. (To u tilize this func­tion, the register must be programmed for "OP X/Z mode avail­able" in the PGM2 mode.)

REG: For entering sales
PGM1: To program those items that need to be changed often: e.g.,

unit prices of departments or PLUs, and percentages.

PGM2: To program all PGM1 programs and those items that do not

require frequent changes: e.g., date, time, or a variety of reg­ister functions.

MGR: For manager’s and submanager’s entries

The manager can use this mode to make entries that are not
permitted to be made by cashiers in the REG mode.
– for example, after-transaction voiding and override entries.

X1/Z1: To take the X/Z reports for various daily totals.
X2/Z2: To take the X/Z reports for various periodic (weekly or monthly)

consolidation of totals.

ER-A520U/ER-A530U SPECIFICATIONS

– 3 –

5. DISPLAY

5-1. OPERATOR DISPLAY

Display device: LCD
Number of lines: 2 lines
Number of positions: 16 positions
Color of display: Yellow / Green
Character font: 5 x 7 dot
Character size: 4.84 (W) x 8.06 (H) mm

Layout:

5-2. CUSTOMER DISPLAY

Display device: LED
Number of lines: 1 line
Number of positions: 7 positions
Color of display: Yellow / Green
Style: Pop up type
Character form: 7 segment + Dp
Character size: 14.2mm (H) x 7.9mm (W)

Layout:

6. PRINTER

1) PRINTER (PR-58HM)

Item Description

No. of station 2: Receipt and Journal
Validation No
Printing system Line thermal
No. of dot Receipt: 360 dots

Journal 360 dots

Dot pitch Horizontal: 0.125mm

Vertical: 0.125mm
Font 10 dots (W) x 24 dots (H)
Printing capacity Receipt: Max. 30 characters

Journal: Max. 30 characters
Character size
Print pitch

Paper feed speed Approximate 65 mm/s
Reliability Mechanism: MCBF 5milion lines
Paper end sensor Yes (Receipt and Journal)
Cutter Manual
Paper near end sensor No
Printing area

Printing format

1.25 mm (W) x 3.0 mm (H): At 10 x 24 dots

Column distance:

Row distance: 3.75 mm

(7.0) (5.5)

0.125

12 x 24

font

1.5 mm

106(848dots)

360dots

(45)

57.5 ±0.5

1.5 (12dots) 1.5 (12dots)

(5.5)

5.0

(7.0)

UNIT: mm

3.0 (24dots)

3.75 (30dots)

3.75 (30dots)

2) PAPER

Item Description

Name Heat-quality paper

0.5 mm in width

Roll dimension 57.5
Thickness 0.06 mm to 0.08 mm

m

0.125

0.125

UNIT: mm

ER-A520U/ER-A530U SPECIFICATIONS

– 4 –

7. DRAWER

[OUTLINE]

• Standard equipment: Yes

• Max. number of additional drawers: 1

• The drawer consists of:

1) Drawer box (outer case) and drawer

2) Money case

3) Lock (attached to the drawer)

7-3. LOCK (LOCK KEY: LKGIM7331BHZZ)

• Location of the lock: Front

• Method of locking and unlocking:

To lock, insert the drawer lock key into the lock and turn
it 90 degrees counter clockwise.
To unlock, insert the drawer lock key and turn it 90
degrees clockwise.

Key No: SK1-1

[SPECIFICATION]
7-1. DRAWER BOX AND DRAWER

Model name of the drawer
box

Size 420 (W) x 427 (D) x 112 (H) mm
color Gray 368
Material Metal
Bell –
Release lever Standard equipment: attached to the

Drawer open sensor YES

SK423

bottom

7-2. MONEY CASE

For U version For A version
Separation from the drawer Allowed Allowed
Separation of the coin compart-

ments from the money case
Bill separator No No
Number of compartments 5B/5C 5B/6C

For U version

Disallowed Allowed

For A version

SK1-1

k

c

o

L

k

c

o

l

n

u

5B/5C

5B/6C

CHAPTER 2. OPTIONS

1.OPTIONS

NO CLASSIFICATION COMPONENT NAME MODEL NAME REMARK

1 Drawer Remote drawer ER-03DW

ER-04DW

2 Key kit 1 x 1 key top kit (30) ER-11KT7 ER-A520 only

1 x 2 key top kit (30) ER-12KT7
2 x 2 key top kit (10) ER-22KT7
1 x 1 dummy key kit (30) ER-11DK7G

5 x 1 dummy key kit (10) ER-51DK7G
3 Display UP-P16DP
4 Memory RAM board UP-S02MB

ER-A520U/ER-A530U OPTIONS

– 5 –

CHAPTER 3. MASTER RESET AND PROGRAM RESET

The SRV key is used for performing entries in the SRV mode.
A MASTER RESET clears the entire memory an d resumes initial values.
A PROGRAM RESET resumes the initial program without c learing the

memory.
There are 2 kinds of MASTER RESET operations.

MASTER RESET 1: Normal MASTER RESET

Clears the entire memory and resumes initial
values.

MASTER RESET 2: It enables the layout of fixed keys in addition to

MASTER RESET 1.
Fixed keys: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9]

[00] [000] [.] [CL] [@/FOR] [SBTL]
[CA/AT]

1. MASTER RESET 1

Please use “Procedure A” or “Procedure B”
Procedure A: 1) Set the mode switch to the (SRV’) position.

2) Plug in the AC power cord to the wall outlet.

3) While holding down the JOURNAL FEED key, turn
the mode switch to (SRV) position from the (SRV’)
position.

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

2) Set the mode switch to the (SRV) position.

3) While holding down the JOURNAL FEED key, plug in
the AC power cord to the wall outlet.

Note: Proc edure B cannot reset the hardware.

Procedure A must be used to reset the hardware.

3. PROGRAM RESET

Please use either “Procedure A”, “Procedure B” or “Procedure C”
Procedure A: 1) Set the mode switch to the (SRV’) position.

2) Plug in the AC power cord to the wall outlet.

3) Without pressing the JOURNAL FEED key, turn the
mode switch to (SRV) position from the (SRV’) posi­tion.

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

2) Set the mode switch to the (SRV) position.

3) Without pressing the JOURNAL FEED key, plug in
the AC power cord from the wall outlet.

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

2) Set the mode switch to the PGM2 position.

3) While holding down the JOURNAL FEED key & the
RECEIPT FEED key, plug in the AC power cord to the
wall outlet.

“Procedure C” can be ex ecuted when SRV#916- B is +4: PRO GRAM

*

RESET in PGM2 = ENABLE.

Note: Procedure B and C cannot reset the hardware.

Procedure A must be used to reset the hardware.

2. MASTER RESET 2

Please use “Procedure A” or “Procedure B”
Procedure A: 1) Set the mode switch to the (SRV’) position.

2) Plug in the AC power cord to the wall outlet.

3) While holding down the JOURNAL FEED & the
RECEIPT FEED keys, turn the mode switch to the
(SRV) position from the (SRV’) position.

4) Program the [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [00] [000]
[.] [CL] [@/FOR] [SBTL] [CA/AT] keys by depressing
the keys in this order.

Note: If the [000] key is not required, press the same

key in the next step, and [000] key will be
inhibited.

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

2) Set the mode switch to the (SRV) position.

3) While holding down the JOURNAL FEED & the
RECEIPT FEED key, plug in the AC power cord to the
wall outlet.

4) Repeat the same sequence as in “Procedure A”

Note: Proc edure B cannot reset the hardware.

Procedure A must be used to reset the hardware.

ER-A520U/ER-A530U MASTER RESET AND PROGRAM RESET

– 6 –

CHAPTER 4. HARDWARE DESCRIPTION

DRAWER2

KEY SCAN

DIG DRIVER

SEG DRIVER

KEY RETURN

PUP

LCD

DRAWER1

1. BLOCK DIAGRAM

ER-A520 and ER-A530

㪧㪦㪮㪜㪩㩷㪪㪦㪬㪚㪜

CPU
RAM 10KB

DRIVER, SENSOR

PRINTER

CI
5V

4 to 16

DECODER

KEY RETURN

RS232C CH1

DRAWER1

DRAWER2

RAM OPT RAM FROM

SEG DRIVER

DIG DRIVER

KEY SCAN

2MB 1MB1MB

LCD

16 digits

x 2LINE

POPOPUP
7 digits

LED

KEY & SW

2. MEMORY MAP

2-1. ADDRESS MAP

Microprocessor mode : MODE0

000000h
000400h

000800h
100000h

200000h

300000h

400000h

500000h

600000h

700000h

800000h

IPLION0# "L" IPLON0# "H"

SFR AREA
INTERNAL RAM AREA(10KB)
INTERNAL RESERVE AREA

NOT USED

EXTERNAL I/O

NOT USED

STD SRAM(1MB)

EXPANSION SRAM(UP-S02MB)

400000h - 5FFFFFh

EXPANSION SRAM

(UP-S04MB)

400000h - 5FFFFFh

INTERNAL
AREA
(1BCLK:0WAIT)

EXTERNAL
AREA0
(2BCLK:1WAIT)

EXTERNAL
AREA1
(3BCLK:2WAIT)

EXTERNAL
AREA2
(3BCLK:2WAIT)

CPU

MITSUBISHI M30802GP 12MHz
(INTERNAL RAM 10KB)

EXTERNAL MEMORY

STD RAM 1MB
OPT RAM 2MB
FLASH ROM 1MB

PRINTER

PR58HM

RS232C CH2

900000h

A00000h

B00000h

C00000h

D00000h

E00000h

F00000h

FFFFFFh

NOT USED

NOT USED

EPROM(1MB) F-ROM(1MB)

NOT USED

F-ROM(1MB) EPROM(1MB)

EXTERNAL
AREA3
(2BCLK:1WAIT)

ER-A520U/ER-A530U HARDWARE DESCRIPTION

– 7 –

3. CPU PIN TABLE

M16C/80 PORT USED IN PROCESSOR MODE: MICROPROCESSOR MODE (SEPARATE BUS 8bit WIDTH)

PIN
No.

Pin

name

/INT3#

/INT4#

/INT5#

/CS3#

/CS2#

/CS1#

PORT

P00 122 D0 D0 I/O − In DA TA BUS D0
P01 121 D1 D1 I/
P02 120 D2 D2 I/O − In DA TA BUS D2
P03 119 D3 D3 I/O − In DA TA BUS D3
P04 113 D4 D4 I/O − In DA TA BUS D4
P05 112 D5 D5 I/O − In DA TA BUS D5
P06 111 D6 D6 I/O − In DA TA BUS D6
P07 110 D7 D7 I/O − In DA TA BUS D7
P10 109 P10 RAS O L Out L RECEIPT

P11 108 P11 RBS O L Out L RECEIPT

P12 107 P12 RCS O L Out L RECEIPT

P13 106 P13 RDS O L Out L RECEIPT

P14 105 P14 JAS O L Out L JOURNAL

P15 104 P15

P16 103 P16

P17 102 P17

P20 101 A0 A0 O − Out L Address Bus A0
P21 100 A1 A1 O − Out L Address Bus A1
P22 99 A2 A2 O − Out L Address Bus A2
P23 98 A3 A3 O − Out L Address Bus A3
P24 97 A4 A4 O − Out L Address Bus A4
P25 96 A5 A5 O − Out L Address Bus A5
P26 95 A6 A6 O − Out L Address Bus A6
P27 94 A7 A7 O − Out L Address Bus A7
P30 92 A8 A8 O − Out L Address Bus A8
P31 85 A9 A9 O − Out L Address Bus A9
P32 84 A10 A10 O − Out L Address Bus A10
P33 83 A11 A11 O − Out L Address Bus A11
P34 82 A12 A12 O − Out L Address Bus A12
P35 81 A13 A13 O − Out L Address Bus A13
P36 80 A14 A14 O − Out L Address Bus A14
P37 79 A15 A15 O − Out L Address Bus A15
P40 78 A16 A16 O − Out L Address Bus A16
P41 77 A17 A17 O − Out L Address Bus A17
P42 75 A18 A18 O − Out L Address Bus A18
P43 73 A19 A19 O − Out L Address Bus A19
P44 72 A20

P45 71 A21

P46 70 A22

Signal

name

JBS O L Out L JOURNAL

JCS O L Out L JOURNAL

JDS O L Out L JOURNAL

A20 O − Out L Address Bus A20

A21 O − Out L Address Bus A21

A22 O − Out L Address Bus A22

Initial
value

After

POFF

Function

PAPER FEED A

PAPER FEED B

PAPER FEED C

PAPER FEED D

PAPER FEED A

PAPER FEED B

PAPER FEED C

PAPER FEED D

I/O

O − In DATA BUS D1

PIN
No.

Pin

name

/CS0#

TA0out

TA0in

TA1out

TA1in

TA2out

TA2in

TA3out

TA3in

TA4out

TA4in

INT0#

/INT1#

/INT2#

/NMI#

P86/

Xcout

Xin

CLK3

PORT

P47 69 A23#

P50 65 WR# WR# O − Out L WRITE STROBE

P51 64 BHE# BHE# O − Out L NOT USED
P52 63 RD# RD# O − Out L READ STROBE

P53 62 BCLK BCLK O − Out L BCLK CLOCK
P54 55 HLDA# HLDA# O − Out L NOT USED
P55 54 HOLD# HOLD# I − In NOT USED
P56 53 ALE ALE O − Out L NOT USED
P57 52 RDY# RDY# I − In NOT USED
P60 47 RTS0# RS2# O H In RS-232 RS2
P61 46 CLK0
P62 45 RxD0 RD2 I − In RS-232 RD2
P63 44 TxD0 TD2 O H In RS-232 TD2
P64 43 RTS1# RS1# O H In RS-232 RS1
P65 42 CLK1 CI1# I − In RS-232 CI1
P66 40 RxD1 RD1 I − In RS-232 RD1
P67 38 TxD1 TD1 O H In RS-232 TD1
P70 37 P70/

P71 36 P71/

P72 35 P72/

P73 34 P73/

P74 33 P74/

P75 32 P75/

P76 31 P76/

P77 30 P77/

P80 29 P80/

P81 28 P81/

P82 27 P82/

P83 26 P83

P84 25 P84

P85 24 P85

P86 18

P87 17 P87/

P90 7 P90/

Signal

name

A23# O − Out L Address Bus A23

CI2#

KR0# I − In KEY RETURN

KR1# I − In KEY RETURN

KR2# I − In KEY RETURN

KR3#

KR4# I − In KEY RETURN

KR5# I − In KEY RETURN

KR6# I − In KEY RETURN

KR7# I − In KEY RETURN

BUZZER O L

DSEN I − In DRAWER OPEN

POFF# I − In P-O FF SI GN AL

SHEN# I − In

NMI# I − In NMI (CON-

Xcout O − Out SUB CLOCK

Xcin I − In SUB CLOCK

SCK O L Out L UP-P16DP

Initial
value

After

POFF

In BUZZER SIG-

Function

SIGNAL

SIGNAL

SIGNAL 0

SIGNAL 1

SIGNAL 2

SIGNAL 3

SIGNAL 4

SIGNAL 5

SIGNAL 6

SIGNAL 7

NAL

SENSE SIGNAL

UP-P16DP
SHEN# SINGNAL

NECTED TO
VDD)

(32.768kHz)

(32.768kHz)

CLOCK SIGNAL

I/O

I − In RS-232 CI2

I − In KEY RETURN

I − In NOT USED

ER-A520U/ER-A530U HARDWARE DESCRIPTION

– 8 –

PIN
No.

Pin

name

PORT

P91 6 P91/

RxD3

P92 5 P92/

TxD3

P93 4 P93/

RTS3#

P94 3 P94/

RTS4#

P95 2 P95/

CLK4

P96 1 P96/

TxD4

P97 144 P97/

RxD4

P100 141 P100/

AN0

P101 139 P101/

AN1

P102 138 P102/

AN2

P103 137 P103/

AN3

P104 136 P104/

AN4

Signal

name

I/O

Initial
value

After

POFF

Function

STH I − In UP-P16DP STH

SIGNAL

HTS O L Out L UP-P16DP HTS

DRAWER1

O L Out L DRAWER 1

SIGNAL

DRIVE SIGNA L

DRAWER2

O L Out L DRAWER 2

DRIVE SIGNA L

PCLK O L Out L PRINTER

CLOCK

SO O L Out L PRINTER DATA

OUT

SI I − In PRINTER DATA

TM I − In

IN
PRINTER HEAD

TEMPERATURE
MONITOR

VPTEST I − In PRINTER HEAD

VOLTAGE MON­ITOR

VREF I − In REFERENCE

VOLTAGE

PHUPS I − In

PRINTER HEAD
UP DETECTION

RPES I − In

PRINTER
RECEIPT PAPER
EMPTY DETEC­TION

P105 135 P105/

AN5

P106 134 P106/

AN6

P107 133 P107/

JPRS I − In

VHCOM O L Out L

I − In NOT USED

PRINTER J OU R ­NAL PAPER
EMPTY DETEC­TION

PRINTER
POWER CON­TROL

AN7

P110 118 P110 STRB1# O H In PRINTER

STROBE 1

P111 117 P111 STRB2# O H In PRINTER

STROBE 2

P112 116 P112 STRB3# O H In PRINTER

STROBE 3

P113 115 P113 STRB4# O H In PRINTER

STROBE 4

P114 114 P114 LATCH# O H In P RINTER

LATCH

P120 90 P120 BLON O L Out L LCD BACK

LIGHT ON

P121 89 P121 LCDON O L Out L LCD POWER

ON
P122 88 P122 LRS O L Out L LCD RS
P123 87 P123 LR/W# O L Out L LCD R/W#
P124 86 P124 LE O L Out L LCD ENABLE
P125 68 P125 LWDL O L Out L LCD WRITE

DATA LATCH
P126 67 P126 IPLON0 I − In IPL from ROM
P127 66 P127

O

Out L NOT USED

−

P130 61 P130 ER2# O H In RS-232 ER2
P131 60 P131 CD2# I − In RS-232 CD2
P132 58 P132 CS2# I − In RS-232 CS2
P133 56 P133 DR2# I − In RS-232 DR2

PIN

PORT

No.

Pin

name

Signal

name

I/O

Initial
value

After

POFF

Function

P134 51 P134 ER1# O H In RS-232 ER1
P135 50 P135 CD1# I − In RS-232 CD1
P136 49 P136 CS1# I − In RS-232 CS1
P137 48 P137 DR1# I − In RS-232 DR1
P140 14 P140 KR8# I − In KEY RETURN

SIGNAL 8

P141 13 P141 KR9# I − In KEY RETURN

SIGNAL 9

P142 12 P142 MODE# I − In MODE KEY

RETURN SIG­NAL

P143 11 P143 FSR# I − In FEED SENSE

SIGNAL
P144 10 P144 WP# I − In F lash ROM WP #
P145 9 P145 RY/BY# I − In NOT USED
P146 8 P146 CKDCR O

H In UP-P16DP

RESET SIGNAL
P150 131 P150 KS0 O L Out L KEY STROBE

SIGNAL 0
P151 129 P151 KS1 O L Out L KEY STROBE

SIGNAL 1
P152 128 P152 KS2 O L Out L KEY STROBE

SIGNAL 2
P153 127 P153 KS3 O L Out L KEY STROBE

SIGNAL 3
P154 126 P154 LEDS0 O L Out L LED STROBE

SIGNAL 0
P155 125 P155 LEDS1 O L Out L LED STROBE

SIGNAL 1
P156 124 P156 LEDS2 O L Out L LED STROBE

SIGNAL 2
P157 123 P157 LEDS3 O L Out L LED STROBE

SIGNAL 3

POWER SUPPLY/CONTROL PINS

PORT PIN No. I/O PIN NAME FUNCTION

Xin 22 I Xin SYSTEM CLOCK IN

Xout 20 O Xout NC

RESET# 19 I RESET# RESET

BYTE 15 I BYTE Connected to VDD

CNVss 16 CNVss Connected to VDD

Vref 142 Vref Connected to VDD

ER-A520U/ER-A530U HARDWARE DESCRIPTION

– 9 –

4. PRINTER CONTROL

The PR-58HM printer is employed.

4-1. STEPPING MOTOR CONTROL

The stepping motor is dr iven at a cons tant cu rrent by SMA 7036M (mad e
by Sanken).

1step: 0.125mm, 1dot: 1step
Printing speed: 50mm/s

<CPU PORT>

No. CPU PORT Signal to be used
109 P10 RAS
108 P11 RBS
107 P12 RCS
106 P13 RDS
105 P14 JAS
104 P15 JBS
103 P16 JCS
102 P17 JDS

<DRIVING STEP>

RECEIPT MOTOR

Driver IC input (CPU output) Motor drive signal

STEP

RAS RBS RCS RDS /RPFA /RPFB /RPFC /RPFD

1

LHLH ON OFF ON OFF

2

LHHLONOFFOFFON

HLHLOFFONOFFON

3
4

HLLH OFF ON ON OFF

Driver IC input (CPU output) Motor drive signal

STEP

*

JAS JBS JCS JDS /JPFA /JPFB /JPFC /JPFD

1

LHHLONOFFOFFON
LHLH ON OFF ON OFF

2

3

HLLH OFF ON ON OFF

4

HLHL OFF ON OFF ON

When the motor is stopped, rush conduction must be performed for
10ms in the same phase as the last excitation phase to turn off con­duction to all the phases.

RAS~RDS and JAS~JDS are turned to "L".

3

Allow at least 30ms before boosting after stopping.
When boosting, rush conduction must be p erformed for 10ms in the
first excitation phase to start the motor by acceleration control.

4-2. HEAD CONTROL

HEAD: All864dot
Printable area:RECEIPT side, 360dot;

JOURNAL side, 360dot

Related PORT

No. CPU PORT Signal to be used

2 P95/CLK2 PCLK

1 P96/TXD4 SO
144 P97/RXD4 SI
118 P110 STRB1#
117 P111 STRB2#
116 P112 STRB3#
115 P113 STRB4#

STB1#: 1~288dot: 288 dots in all
STB2#: 289~432dot:144 dots in all
STB3#: 433~576dot:144 dots in all
STB4#: 577~864dot:288 dots in all

When turning off the printer power supply, make sure to turn

*

/STB1,2,3,4 to “H.”
Do not turn on the printer under paper empty state.

*

During printing or paper feeding, after 10ms of turning on the printer

*

head power, A/D conversion must be performed to check that the
voltage is stabilized before starting the operation.

Total 864 dots

4-3. OTHER PORTS

No. CPU PORT Signal to be used
136 P103 PHUPS
135 P104 PRES
134 P105 PJES
133 P106 VHCOM

PHUPS: "1" Head up
PRES : "0" Receipt paper end
PJES : "0" Journal paper end
VHCOM: "1" Thermal head power control: On at "H" and OFF at "L".

Turn off the power conduction when printing is completed (the
motor is stopped).

ER-A520U/ER-A530U HARDWARE DESCRIPTION

– 10 –

5. A/D CONVERSION

6. KEY/DISPLAY

In the ER-A520/530, the following three kinds of signals are inputted to
the A/D conversion port.

<CPU PORT>

No. CPU PORT

Signal to

be used

Function

130 AN0 TM PRINTER HEAD TE MPERATURE

MONITOR

138 AN1 VPTEST PRINTER HEAD VOLTAG E MO N I-

TOR

137 AN2 VREF REFERENCE VOLTAGE

5-1. PRINTER HEAD TEMPERATURE MONITOR

A voltage divided by the temperature detection thermistor of the printer
head and the resistor is inputted to AN0 pin.

The printer head conduction must be controlled as shown below.

HEAD

TEMPERATURE

-10°C or below 929~1023 MOTOR LOCK

-10°C ~ 0°C 869~928 PRINT IN ENERGIZING

0°C ~ 70°C 232~868 PRINT FOR CONDUCTION

70°C or above 0~231 MOTOR LOCK

A/D CONVERSION

VALUE (DEC)

OPERATION

TIME AT 0°C

TIME SPECIFIE D ON PR­58H CONTROL SPEC.

6-1. LCD CONTROL

LCD control is same as the ER-A275P.

LCD-related Register

Function Address R/W
LCD Write Data 100001h W
LCD Read Data 100001h R

<CPU PORT>

No. CPU PORT

90 P120 BLON LCD BACK LIGHT ON SIGNAL
89 P121 LCDON LCD ON SIGNAL
88 P122 LRS LCD RS SIGN AL
87 P123 L R/W# LCD R/W# SIGNAL
86 P124 LE LCD E SIGNAL
85 P125 DATALE LCD WRITE DATA LATCH

P125: LWDL

L : LCD write data latch

P124: E

Enable Signal Enable

P123: R/W#

H: Data read L: Data Write

P122 LRS

H: Data input L: Instruction Input

Signal to

be used

Function

5-2. PRINTER HEAD VOLTAGE MONITOR

A voltage is supplied by the printer head power source, passed through
the printer, and divided by the resistor is inputted to AN1 pin.

The A/D conversion value must be read after turning VHCOM signal
(CPU P106) to "H" and stabilizing the voltage (after 10msec).

The printable voltage range of the printer is 15V~26V. The voltage is
calculated from the AN1 value and the A/D conversion value o f the ref­erence voltage.

5-3. REFERENCE VOLTAGE

The reference voltage (2.495Vm0.085V) generated by KIA431F is input­ted to AN2 pin.

469 (DEC)
VREF 469 (DEC) corresponds to VREF = 2.41V at VCC = 5.25V
VREF 557 (DEC) corresponds to VREF = 2.58V at VCC = 4.75V

VREF t 557 (DEC)

t

DATA WRITE (CPU 3 LCD)

LRS

LR/W#

LE

DB0-7

LWDL

P122 "x"

100001h

P123 "L"

P124 "H" P124 "L" P123 "H"

DATA

WRITE

DATA READ (CPU 1 LCD)

LRS

LR/W#

LE

DB0-7

Valid Data

Valid Data

LWDL

P122 "x"

P123 "H"

When the read busy flag of the LCD display remains busy for more than
500ms, turn off LCDON (P121) for 1ms and perform initializing.

ER-A520U/ER-A530U HARDWARE DESCRIPTION

– 11 –

P125 "H" P124 "H" 100001h

DATA

READ

P124 "L" P125 "L"

6-2. KEY/DISPLAY SCAN

Key/display scan and key read are performed at the following timing.

Key/display scan cycle: 10ms

1

Blanking time: 50us

2

KEY DATA READ timing: Read before 10~100us of strobe signal

3

OFF.

Key/Display-related Register

Function Address R/W

LED Segment Signal 100000h W

<LED Segment Signal> Write

Address B it7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0

100000h DP g f e d c B a

<CPU PORT>

No. CPU PORT

131 P150 KS0 KEY STROBE SIGNAL 0
129 P151 KS1 KEY STROBE SIGNAL 1
128 P152 KS2 KEY STROBE SIGNAL 2
127 P153 KS3 KEY STROBE SIGNAL 3
126 P154 LS0 LED STROBE SIGNAL 0
125 P155 LS1 LED STROBE SIGNAL 1
124 P156 LS2 LED STROBE SIGNAL 2

123 P157 LS3 LED STROBE SIGNAL 3
KS3~0 : KEY strobe signal is generated.
LS3~0 : POP UP Display strobe signal is generated.

No. CPU PORT

46 P70 KR0# KEY RETURN SIGNAL 0
45 P71 KR1# KEY RETURN SIGNAL 1
44 P72 KR2# KEY RETURN SIGNAL 2
43 P73 KR3# KEY RETURN SIGNAL 3
42 P74 KR4# KEY RETURN SIGNAL 4
41 P75 KR5# KEY RETURN SIGNAL 5
40 P76 KR6# KEY RETURN SIGNAL 6
39 P77 KR7# KEY RETURN SIGNAL 7
14 P140 KR8# KEY RETURN SIGNAL 8

13 P141 KR9# KEY RETURN SIGNAL 9
R0#~KR9# : Flat Keyboard KEY Return signal
KR0#~KR7# : Normal Keyboard KEY Return signal

Signal to

be used

Signal to

be used

Function

Function

No. CPU PORT

Signal to

be used

Function

12 P142 MODE# MODE KEY SIGNAL
11 P143 FSR# FEED SENS SI G NAL

The mode key switch and other signals are read at CPU ports P142 and
P143 at the key strobe timing.

Reading is made 10~100us before the strobe signal OFF..

P142 ST0 : MODE Key SRV “0” SRV mode

ST1 : MODE Key PGM “0” PGM mode
ST2 : MODE Key VOI D “0” VOID mode
ST3 : MODE Key OP X/Z “0” OP X/Z mode
ST4 : MODE Key REG “0” REG mode
ST5 : MODE Key MGR “0” MGR mode
ST6 : MODE Key X1/Z1 “0” X1/Z1 mode
ST7 : MODE Key X2/Z2 “0” X2/Z2 mode

P143 ST10 : Receipt feed “0” Receipt feed

ST11: Journal feed “0” Journal feed
ST13 : Keypad select “1” Flat key

“1” JNormal key

The Flat Keyboard takes key data in twice during the strobe period.
For read timing, refer to the timing chart below.

KS0 - 3

(0h~Fh repeat)

Key Return Sinnal

LS0 - 3

(0h~9h repeat)

LED Segment
Signal

588us ±20us

0h 1h 2h Fh 0h

10 - 100us

950 25us

0h 1h FhFh

Max.10us

1ST DIGIT
DISPLAY DATA

ER-A520U/ER-A530U HARDWARE DESCRIPTION

BLANK BLANK BLANK

50 10us

2nd DIGIT
DISPLAY DATA

9h

Fh 0h

1ST DIGIT
DISPLAY DATA

– 12 –

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 PO P
UP side.

8. POWER

Service interruption should be performed
within 10ms after generation of /POFF.

FRONT:

POP UP:

• DISPLAY DIGIT SI GNAL
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
D7

3
3

a~g
DP

24V

TRANS.

/POFF detection point

LM2574 + TR

PQ1CG2032

BATTERY

DRAWER
PRINTER

ON/OFF control
(MODE SW)

VLED 5.7V

VCC 5.0V
VDD 5.0V

9. FLASH MEMORY REWRITE PROCEDURE

The FLASH ROM of Fujitsu MBM29F800TA-90 is employed.

No. CPU PORT

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

Signal to

be used

Function

7. SERIAL I/O

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

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

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

Signal to

be used

Function

ER-A520U/ER-A530U HARDWARE DESCRIPTION

– 13 –

11. RISTRICTIONS ON PRINT RATIO

/

/

/

15. POFF

Max. 288dot/1line x 140line (Corresponds to black background LOG print)
Ave. 108dot/1line or less (Corresponds to 12.5% of all dots)

12. BUZZER

Oscillation frequency is 2.048kHz (2.0kHz~2.2kHz).

<CPU PORT>

No. CPU PORT

29 P80 BUZZER BUZZER SIGNAL

Signal to

be used

Function

13. UP-P16DP I/F

The ER-A520/530 is provided with I/F with CKDC on the option display
of UP-P16DP.

<CPU PORT>

No. CPU PORT

26 INT1# SHEN# CKDC interface shift enable signal

7 CLK3 SCK CKDC interface synchronizing shift

6 RxD3 STH CKDC interface shift input data
5 TxD3 HTS CKDC interface shift output data
8 P126 CKDCR CKDC reset signal

Signal to

be used

Function

clock

The POFF signal is changed from 0 to 1 when the 5V power and the
24V power reach the operating voltage level.

It is changed from 0 to 1 when the power falls below the operating volt­age level.

POFF, RESET TIMING CHART

+5V

20.8V

+24V

RESET

POFF

EFTRES

POWER ON Instant service

interruption

min.10ms

MODE
SRV'

MODE
Other than
SRV'

min.10ms

POWER OFF

The CKDCR "HIGH" time to input RESET to the UP-P16DP is min
30us.

14. RESET

The RESET signal is generated under the following condition.

1) When the MODE key switch position is changed from SRV' to any
other position (excluding OFF position).

ER-A520U/ER-A530U HARDWARE DESCRIPTION

– 14 –

CHAPTER 5. DIAGNOSTIC PROGRAM

1. TEST ITEMS

The test items are as follows:

Code Description

1) 100 Display buzzer test

2) 101 Key code

3) 102 Printer test

4) 104 Keyboard test

5) 105 Mode switch test

6) 106 Printer sensor test

7) 107 Clock test

8) 110 Drawer 1 open & sensor test

9) 111 Drawer 2 open & sensor test

10) 116 LCD CG test

11) 120 Standard RAM test

12) 121 OPTION RAM test

13) 122 CPU internal RAM test

14) 130 FLASH ROM test

15) 160 AD conversion port test

16) 400 POLE DISPLAY test

17) 500 RS232 ch1 test

18) 501 RS232 ch2 test

19) 510 SCANNER test

Starting DIAG.

*

Mode switch: SRV
key operation: Above code + “CA/AT” key

2.

DESCRIPTION OF EACH DIAG PRO G RAM

1) DISPLAY BUZZER TEST

1

Key operation
100

3

CA/AT

2

Test procedure

OP display

DISP

BUZZER

SRV

0123456789ABCDEF

Rear display

The decimal point on the LED and the cursor on the LCD will shift
from the lower digit to the upper digit in steps of 1 digit (every 200
msec)
After that, all segments will turn on (about 1 sec)
These two modes are repeated.
At the same time, the buzzer sounds continuously.

3

Check that:

A) Each position is correctly displayed.
B) The brightness of each number is uniform.
C) The buzzer sound is normal.

4

End of testing
You can exit the test mode by pressing any key. The following is

printed.

4.5.6.7.8.9.0.

100

2) KEY CODE

1

Key operation
101

3

CA/AT

2

Test procedure

OP display

3

Check that:

KEYBOARD: 1: Normal type 0: Flat type
KEY code: Every time a key is pressed, the hard code of that key

4

End of testing
You can exit the test mode by turning the mode switch to a position

other than the PGM mode. The printer prints as follows:

KEY

KEYBOARD

is displayed as a decimal number.
When a key is pressed twice or pressed in an incor-

rect manner, --- will be displayed.

CODE

SRV

KEY CODE

101

ER-A520U/ER-A530U DIAGNOSTIC PROGRAM

– 15 –

3) PRINTER TEST

Key operation

1

102

3

CA/AT

Test procedure

2

OP display

At the receipt side, the logo is also printed and the receipt is issued.

3

Check that:
The print is free from contamination, blur, and uneven density.

4

End of testing
The test will end automatically.

R/J

5 lines of 24 digits are printed.

PRINTER

SRV

Enlargement

4) KEYBOARD TEST

1

Key operation
_ _ _ _104

2

KEY check sum code
Test procedure

2

The keyboard is checked using the sum check code of the key
code.

If the sum check code is not entered, the check is made using the
sum check code of the default keyboard arrangement

The sum check data for each model is entered to the front 4 digits
of the DIAG code, and that data is c ompared with the key data
added until the final key (CA/AT) is pressed.

Both data are the same, the test ends, printing the number given
below.

If both data are different, the printer prints the error message.

OP display

3

CA/AT

KEY

BOARD

SRV

104

5) MODE SWITCH TEST

Key operation

1

105

3

CA/AT

Test procedure

2

OP display

MODE

SW

105

MODE: SRV_PGM2_PGM1_OFF_OP X/Z_REG_MGR_X1/Z1_X2/Z2__SRV

X :

The above X must be read in the correct order. (If the cont act is
open, 9 will be displayed.)

Check:

3

The display during testing and the content of the completion print.
End of testing

4

When the test ends normally
When an error occurs: E – ~ –

100293 456 7

SRV

X

105
105

6) PRINTER SENSOR TEST

Key operation

1

106

3

CA/AT

Test procedure

2

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

OP display

R/J

SENSOR

106

Check the following.

3

X:1 - Paper present at the receipt side

O - No paper at the receipt side

Y:1 - Paper present at the journal side

O - No paper at the journal side

End of testing

4

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

SRV

XY

106

3

Check:

A) The content of completion print

4

End of testing
When the test ends normally:
When an error occurs: E – ~ –

Note: Calculation of key sum check data

Hard codes (hexadecimal number) at the position (excluding
feed key) where there is an input data contact are added.
However, the end key (TL) is not added.
This data to which hard codes have been added is converted into
a decimal number value, which will become the sum check data
that will be entered when DIAG is started.

KEY CODE

104
104

ER-A520U/ER-A530U DIAGNOSTIC PROGRAM

– 16 –

7) CLOCK TEST

Key operation

1

107

3

CA/AT

Test procedure

2

9) DRAWER 2 OPEN & SENSOR TEST

Key operation

1

111

3

CA/AT

Test procedure

2

OP display

TIM

ER

CHECK

SRV

107

Hour

Blinks at an interval of 0.5 sec.

Check that:

3

“–“ blinks and the clock counts up.

End of testing

4

When any key is pressed, the date and time are printed and the

test mode will be terminated.

day

hour

min.

sec.

year

month

Min. Sec.

107XXXXXX XXXXXX

8) DRAWER 1 OPEN & SENSOR TEST

Key operation

1

110

3

CA/AT

Test procedure

2

OP display

Check that:

3

A) The drawer 2 opens normally.
B) The sensor correctly indicates the status of the drawer 2.

End of testing

4

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

DRAWER

X : O = DRAWER OPENED

C = DRAWER CLOSED

2

SRV

111

10) LCD CG TEST

Key operation

1

116

3

CA/AT

Test procedure

2

To check the display CG, 256 pieces of built-in CG's are g rouped
into 16 blocks and each 16 characters is displayed on the dot dis­play.
At first, CG code of 00H ~ 0FH is displayed. By pressing any key,
each block is displayed in sequence.

X

OP display

Check that:

3

A) The drawer 1 opens normally.
B) The sensor correctly indicates the status of the drawer 1.

End of testing

4

You can exit the test mode by pressing any key. T he printer prints

the following.

DRAWER

X : O = DRAWER OPENED

C = DRAWER CLOSED

1

SRV

110

OP display

XY

SRV

X

"O" indicates the CG display position.

"XY" indicates the code at the head of each block
in hexadecimal number.
(Example: 10, A0)

Check that:

3

A) Displays are clear.
B) Free from blur, chip-off, unevenness.

End of testing

4

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

116

ER-A520U/ER-A530U DIAGNOSTIC PROGRAM

– 17 –

11) STANDARD RAM TEST

12) OPTION RAM TEST

Key operation

1

120

3

CA/AT

The standard RAM is checked.

2

The contents of memory must be the same before and after this test.

RAM (100000H~1FFFFFH area) is tested i n the f ollo win g procedure :

a) Store data in the test areas
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 at a step, the error is printed.

If any error does not occur, the following addresses are checked in turns.

Addresses to be checked:

300000H, 300001H, 300002H, 300004H, 300008H, 300010H,
300020H, 300040H, 300080H, 300100H, 300200H, 300400H,
300800H, 301000H, 302000H, 304000H, 308000H, 310000H,
320000H, 340000H, 380000H,

OP display

RAM

SRV

120

Key operation

1

121

3

CA/AT

The standard RAM is checked.

2

The test program tests internal RAM (10 Kbytes) of the CPU.
The contents of memory must be stored before and after this test.
RAM (00400H ~ 02BFFH area) is tested in the following procedure.

a) Store data in the test area.
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 at a step, the error is printed.
If any error does not occur, the following addresses are checked
in turns.

Addresses to be checked:

400000H, 400001H, 400002H, 400004H, 400008H, 400010H,
400020H, 400040H, 400080H, 400100H, 400200H, 400400H,
400800H, 401000H, 402000H, 404000H, 408000H, 410000H,
420000H, 440000H, 480000H, 500000H,

OP display

RAMCPU

SRV

121

Check: A) The completion print.

3

End of testing

4

The program ends after printing as follows:

When the test ends normally:
When the test end abnormally: Ex – ~ –

x = 1: Data error
x = 2: Address error

When an error occurs, the printer outputs the error message and the
address where the error has occurred in the area

*****

120
120

*****

.

Check: The completion print.

3

End of testing

4

The test program ends after printing.
When the test ends normally:

When the test ends abnormally: Ex – ~ –

x = 1: Data error
x = 2: Address error

If an error occurs, the printer outputs the error message and the
address where the error has occurred in the area

*****

121
121

*****

.

ER-A520U/ER-A530U DIAGNOSTIC PROGRAM

– 18 –

13) CPU INTERNAL RAM TEST

1

Key operation

122

3

CA/AT

2

Test procedure

The test program tests internal RAM (10 Kbytes) of the CPU.

The contents of memory must be stored before and after this test.

RAM (00400H ~ 02BFFH area) is tested in the following procedure.

a) Store data in the test area.
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 at a step, the error is printed.

If any error does not occur, the following addresses are checked

in turns.

Addresses to be checked:

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

OP display

RAMCPU

SRV

122

3

Check:

The completion print.

4

End of testing
The test program ends after printing.

When the test ends normally: 122
When the test ends abnormally: Ex – ~ – 122

*****

x = 1: Data error
x = 2: Address error

If an error occurs, the printer outputs the error message and the
address where the error has occurred in the area

*****

.

14) FLASH ROM TEST

1

Key operation

130

3

CA/AT

2

Test procedure

The test program checks that the checksum of the flash ROM

(F00000H ~ FFFFFH).

The lower two digits of the checksum should be 10H. (pending)

OP display

ROMFLASH

SRV

130

3

Check: The completion print.

4

End of testing

The test will automatically be terminated and the printer prints as

follows:

When the test ends normally: 130

When the test ends
abnormally:

ROM

E

– – ~ – –

ROM

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

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

(Model name)
(Version)

130

(Model name)
(Version)

15) AD CONVERSION PORT TEST

1

Key operation
160

3

CA/AT

2

Test procedure
The test program displays the voltage of each AD conversion port.

Display

OP display

TM

=

SRV

160

Repeat

OP display

VRF

=

SRV

160

OP display

VPTEST

=

SRV

160

3

End of testing
You can exit the test mode by pressing any key. T he printer prints

the following.

160

16)POLE DISPLAY TEST

UP-P16DP is attached in DISPLAY CN.

Key operation

1

400

3

CA/AT

Test procedure

2

Displayed in the following procedure A test pattern.
Progresses to the following pattern by pushing arbitrary KEY.
i ) The following test pattern is displayed.

DOT DISPLAY
7SEG DISPLAY

ii) The test pattern of all beam all-points lights is displayed.
Check:

3

A) The display of each position is right.
B) Be uniform in the luminosity of each display and there needs to

be no MURA in it.

End of testing

4

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

:

0123456789;AaBbC

0.1.2.3.4.5.6.7.8.9.-.

:

ccccccccccc

400

17) RS232 CH1 TEST

Install the RS232 loopback connector.

1

Key operation
500

3

CA/AT

2

Test procedure
The test program checks the control signals.

OUTPUT INPUT

/ER1 /RS1 /DR1 /CI1 /CD1 /CS1

OFF OFF OFF OFF OFF OFF
OFF ON OFF OFF ON ON

ON OFF ON ON OFF OFF
ON ON ON ON ON ON

ER-A520U/ER-A530U DIAGNOSTIC PROGRAM

– 19 –

Data communication check

A loopback test of 256-byte data between is performed.

DATA: $00 - $FF BAUD RATE:9600 BPS

OP display

232

RS TEST

SRV

500

Check:

3

The completion print.

End of testing

4

Completion print RS TEST OK
Error print RS TEST **NG**ERxx

xx Contents of error
01 ER DR error
02 ER CI error
03 RS CD error
04 RS CD error
05 SD RD error DATA error
06 SD RD error DATA error/framing error

18) RS232 CH2 TEST

Install the RS232 loopback connector.

Key operation

1

501

3

CA/AT

Test procedure

2

The test program checks the control signals.

OUTPUT INPUT

/ER2 /RS2 /DR2 /CI2 /CD2 /CS2

OFFOFFOFFOFFOFFOFF
OFF ON OFF OFF ON ON

ON OFF ON ON OFF OFF

ON ON ON ON ON ON
Data communication check
A loopback test of 256-byte data between is performed.
DATA: $00 - $FF BAUD RATE: 9600 BPS

OP display

232

RS TEST

SRV

501

19)SCANNER TEST

The data read with ER-A6HS1 is displayed and it prints.

Key operation

1

510

3

CA/AT

Test procedure

2

It is tested to read it to ER-A6HS1 connected with RS-232 PORT of
ERA520, 530.
Scanner initialization command "R" is transmitted, Tsu Te reading
beginning command "E" is transmitted, and reading the scanner is
begun. When data is read, data except STX and CR are displayed
and the receipt is printed. Whenever read and updated, they are
updated.

OP display

ANNER

SC

SRV

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

The read data is displayed on the left.

Receipt printing:
The read data is put in the left and printing and paper sending are
carried out.

Check: Check whether the read data is right.

3

End of testing

4

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

510

Check:

3

The completion print.
End of testing

4

Completion print RS TEST OK
Error print RS TEST **NG**ERxx

xx Contents of error
01 ER DR error
02 ER CI error
03 RS CD error
04 RS CD error
05 SD RD error DATA error
06 SD RD error DATA error/framing error

ER-A520U/ER-A530U DIAGNOSTIC PROGRAM

– 20 –

CHAPTER 6. IPL FROM EP-ROM

Before installation, unplug the AC power cord from the AC outlet.

1. Open the top cabinet.

2. S et the IPL switch (S1) to ROM COPY position.

ROM COPY

GND VCC

S1

IPL switch

3. I nst all the IPL ROM in the IC socket of the MAIN PWB.

S1

6. Unplug the AC power cord from the AC outlet.

7. Remove the IPL ROM from to the IC socket of the MAIN PWB.

8. Set the IPL switch (S1) to GND position.

ROM COPY

GND VCC

S1

S1

IPL switch

9. Replace the top cabinet.

10. Perform the master reset.
Turn the mode key switch to the SRV’ position, insert the AC power

cord into the AC outlet.
While holding down the Journal feed key, turn the mode key from
the SRV position to the SRV’ position.

IPL ROM

pin-1

4. Turn the mode key switch to SRV’ position, and insert the AC power
cord into the AC outlet.

5. T urn the mode key switch to SRV position. The IPL procedure is
started.

When the procedure is completed, the message of “Completed” is
shown.

ER-A520U/ER -A530U IPL FROM EP-ROM

– 21 –

B

B

B

D

D

D

D

C

C

C

C

B

A

1/7

A[0..22] 2,3,6

12345678

12345678

12345678

12345678

A20

A21

A22

100pF

100pF

100pF

100pF

100pF

100pF

100pF

100pF

100pF*10100pF*10

100pF

100pF

100pF

VCC

100pF

100pF

100pF

100pF

100pF

100pF

100pF

100pF

100pF

77

P40/A16(MA8)

P37/A15(MA7)(/D15)

P35/A13(MA5)(/D13)

P36/A14(MA6)(/D14)

D [0..7] 2,3,6

R32

10K

R31

10K

R30

10K

R29

10K

R28

10K

R27

10K

R26

10K

R25

10K

7573122

P41/A17(MA9)

P42/A18(MA10)

P43/A19(MA11)

D0

R33 33

P00/D0

D1D2D3

R34 33

121

P01/D1

D4D7D5

33

R35

120

119

P02/D2

D6

R36 33

P03/D3

R37 33

113

P04/D4

R42 100

108

RBS 4

107

P11/D9

RDS 4

R44 100

106

P12/D10

P13/D11

VCC

JAS 4

R45 100

105

P14/D12

R50

R49

R48

R47

JBS 4

100

R46

104

P15/D13/INT3

103

33pF*8

C31

33pF

C30

33pF

C29

33pF

C28

33pF

C27

33pF

C26

33pF

RAS 4

C25

33pF

C24

33pF

R171

47K

R170

47K

R169

47K

R168

47K

R167

47K

R166

47K

R38 33

R41 100

R39 33

R40 33

112

111

110

109

P05/D5

P06/D6

P07/D7

P10/D8

A1

A4

A3

A2

9998979695

P20/A0(/D0)

P21/A1(/D1)

A5

A6

P22/A2(/D2)

P23/A3(/D3)

P24/A4(/D4)

A11

A12

A10

A13A7A9

P26/A6(/D6)

P25/A5(/D5)

A18A8A16

A17

A14

A15

94

85

P27/A7(/D7)

P30/A8(MA0)(/D8)

A19

C23

C22

C21

C20

C19

C18

C17

C16

C15

C14

C13

C12

C11

C10

C9

C8

C7

C6

C5

C4

84838281807978

P31/A9(MA1)(/D9)

P32/A10(MA2)(/D10)

P33/A11(MA3)(/D11)

P34/A12(MA4)(/D12)

A0

R20

10K

R19

10K

R18

10K

R17

10K

R16

10K

R15

10K

R14

10K

R13

10K

R12

10K

VCC

R11

10K

R10

10K

R9

10K

R8

10K

R7

10K

R6

10K

R5

10K

R4

10K

R3

10K

R2

10K

VCC

R1

10K

10139100

A20

10K

10K

10K

10K

JDS 4

R52 100

102

72717052696564

P16/D14/INT4

P17/D15/INT5

P44/CS3/A20(MA12)

A22

A21

P45/CS2/A21

A23# 2,3

P46/CS1/A22

P47/CS0/A23

C36

100pF

C35

100pF

C34

100pF

C33

100pF

R57

VCC

R56

63

P52/RD/DW

P50/WRL/WR/CASL

P51/WRH/BHE/CASH

100pF*4

R66

R65

R64

VCC

R63

WR# 2,3,6

RD# 2,6

C38

10K

10K

C37

VDD

VCC

10K

R62

625554

53

P57/RDY

P56/ALE/RAS

P53/BCLK/ALE/CLKout

C44

0.1uF

VCC

+

B

BZ1

2048BH

1SS355

D1

Q1

C2412K

R72

12K

R70

2.2K

IC2 7Pin : G ND

R71

47K

BUZZER

LR/W# 3

DATALE 3

LE 3

LCDON 3

BLON 3

LRS 3

10K

10K

10K

10K

33pF

33pF

10K

R67

90898887866867666058565150

P120

P121

P122

P55/HOLD

P54/HLDA/ALE

P123

P124

P125

IPLON0 2

IPLON0#

P126

P127

VCC VCC

ER2#

CD2#

61

P130

RESET#

RES# 2,3

RESET 5

74LV00A

6

4

VDD

KIA7045F

P134

1

IC21A

74HC02

2

3

C50

1000pF

74LV00A

5

0.1uF

C51

R82

22K

R85

470

M_RESET#3

KS2 3

KS0 3

LEDS0 3

LEDS2 3

LEDS1 3

P152

LEDS3 3

KS3 3

VCC

10K

R94

R93

10K

R92

10K

R91

10K

10K

R90

R89

10K

R88

10K

R87

10K

KS5

KS7

KS4

KS3

KS6

127

126

125

124

123

P153

P154

P155

P156

P157

KS1 3

ER2# 5

ER1# 5

10K

10K

CS1# 5

CD1# 5

DR1# 5

CS1#

CD1#

DR1#

KS0

KS2

KS1

131

129

128

49

48

P136

P135

P150

P151

P137

21

21

21

21

3

3

3

3

3

IC2A

1

2

14Pin : VD D

IC2B

R153

330

3

IC34

1

2

NOT USED

R81

VCC

R80

CD2# 5

DR2# 5

CS2# 5

ER1#

DR2#

CS2#

P131

P132

P133

IC1

Vcc

Vcc

Vcc

Vcc

Vcc

23

132

VDD

CPU

CHAPTER 7. CIRCUIT DIAGRAM AND PWB LAYOUT

D

D

D

D

P70/TxD2/SDA2/TA0out

P71/RxD2/SCL2/TA0in/TB5in

P72/CLK2/TA1out/V

AVss

Vref

AVcc

Vcc

597491

769293

140

142

143

Vss

P60/CTS0/RTS0

Vss

Vss

Vss

Vss

Vss

P61/CLK0

P62/RxD0

P63/TxD0

P64/CTS1/RTS1/CTS0/CLKS1

41

47

21

57

130

C3

0.1uF

C2

+

C1

10uF/16V

+

P65/CLK1

4645444342403837363534333231302928272625241817

VDD

NOT USE

R24

10K

VCC

10uF/10V,OS

R23

10K

R22

10K

R21

10K

CI1#5

RXD25

CI2#

RS2#5

RS1#5

TXD25

5

P66/RxD1

RXD15

P67/TxD1

1
TXD

5

KR0#3

KR2#3

KR1#3

P73/CTS2/RTS2/TA1in/V

P74/TA2out/W

P75/TA2in/W

P76/TA3out

KR3#3

KR4#3

KR5#3

KR6#3

VCC

C

C

C

C

P77/TA3in

P80/TA4out/U

P81/TA4in/U

P82/INT0

P83/INT1

P84/INT2

P85/NMI

P86/Xcout

P87/Xcin

P90/TB0in/CLK3

P91/TB1in/RxD3/SCL3/STxD3

P92/TB2in/TxD3/SDA3/SRxD3

P93/DA0/TB3in/CTS3/RTS3/SS3

P94/DA1/TB4in/CTS4/RTS4/SS4

7654321

10K

R53

BUZZER

POFF#2,3

DSEN6

R51 10K

DRAWER16DRAWER26

VCC

R60

10K

R59

SCK5HTS5

10K

R58

10K

R55

47K

R54

47K

STH5

330

R61

KR7#
3

R43

10K

C32

330pF

SHEN#5

P95/ANEX0/CLK4

P96/ANEX1/TxD4/SDA4/SRxD4

P97/ADtrg/RxD4/SCL4/STxD4

P100/AN0

144

1411513916138

PCLCKSOSI

TM4

C43

C42

C41

SI6

PCLK6

SO6

C40

27pF

X1

C39

18pF

B

B

B

B

P102/AN2

P101/AN1

VREF4

VPTEST4

R69

47K

R68

47K

330pF

330pF

330pF

32.768KHz
PLACE NEAR CPU!!!

P103/AN3

137

PHUPS4

P104/AN4/KI0

P105/AN5/KI1

136

135

134

JPES4

RPES4

VCC

P106/AN6/KI2

P107/AN7/KI3

P110

133

118

R74 0

R73 47K

VHCOM4

R79

R78

R77

R76

R75

P111

P112

P113

P114

P142

P143

P140

P141

121110

14

13

117

116

115

114

P144

RESET

P145

P146

9

8

222019

VHI30802SB-1(M30802SGP)

BYTE

CNVss

Xin

Xout

VDD

KR8#3

KR9#3

MODE#3

FSR#3

RY/BY#2

CKDCR5

RESET#

R172

100

C52

C53

VCC

6

7

5

8

S0

VDD

FSOUT

XIN

XOUT

S1

LF VSS

IC3

PLACE NEAR CPU!!!

123

4

3

1

CST12.0MTW

2

X2

A A

A A

A A

A

C138

+

FS781

R86

100pF

10uF/10V,OS

0.1uF

3.3K

C54

330pF

87654

87654

87654

87654

R83 47K

WP#2

C49

10K

10K

10K

10K

10K

STRB2#4,6

STRB1#4,6

330pF

C48

330pF

C47

330pF

C46

330pF

C45

330pF

STRB4#4,6

LATCH#6

STRB3#4,6

ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT

– 22 –

B

B

B

D

D

D

D

C

C

C

C

B

A

2/7

12345678

12345678

12345678

12345678

A15

VDD

323130292827262524232221201918

A15

VCC

A18

A16

IC5

123456789

A16

A18

A17

48474645444342414039383736353433323130

A16

BYTE

IC4

A15

A14

123456789

A16

A15

1,6

A9A4A13

A17

A14

A0

A14

A10

A11

A8

1,3,6

WR#

WR

A17

A14

A12A7A6A5A4A3A2A1A0D0D1D2GND

A12

VSS

DQ15/A-1

A13

A12

A13

A8

A9

A13

A11RDA10

A4

A5

A7A12

A6

D6

D7

DQ7

DQ6

DQ14

DQ13

A11

A10A9A8

A10

A9

A11

RAMCS1#

RD#

D6

D7D3D4

D7D6D5D4D3

CS

10111213141516

D1

D0

A3

A0

A1

A2

VCC

D3

D4

D5

DQ5

DQ4

DQ3

VCC

DQ12

DQ11

A19NCWE

RESETNCWP

1011121314151617181920

WP#1

WR#1,3,6

RES#1,3

A20

D5D2

D2

DQ10

RY/BY

RY/BY#1

A19

DQ2

A18

A18

D3

17

D1

DQ9

DQ1

A17A7A6

A8

DQ8

A7

4MRAM HY628400A LLT2-70

RD# 1,6

D0

29

DQ0

A5

212223

A5

A6

VDD

FROMCS#

OE

VSS

A4A3A2

A3

262728

CE

A1

A1 A0

24 25

A2

C59

0.1uF

+

C58

10uF/50V

16M FLASH ROM

MBM29F160TE90

A15

A17

VDD

323130292827262524232221201918

A15

A17

VCC

A18

A16

A14

IC9

123456789

A16

A14

A18

VCC

C62

0.1uF

VCC

+

C61

10uF/50V

VCC

VPP

IC10

123456789

A19

A10

RAMCS2#

A8

A13

A9

RD#

WR#

A8

A9

WR

A13

A12A7A6A5A4A3A2A1A0D0D1D2GND

A7

A12

A5

A6

A13

A18

A17

A13

A14

A17

A18/PGM

A16

A15

A12A7A6A5A4A3A2A1A0D0D1D2GND D3

A16

A12 A14

A15

A7

CS

A11RDA10

10111213141516

A3

A2

A1

A4

EPROMCS#

A9

A10

A8

A11

A9

A8

A10OEA11

10111213141516 17

A2 A0

A4

A5

A1

A6

A3

D6

D7D0

D7D6D5D4D3

D1

D7

CE

A0

D0

D5

D4

D2

D4D7D6

181920212223242526272829303132

D4D5D6

D1 D5

D2

17

C65

0.1uF

VDD

+

4MRAM HY628400A LLT2-70

C64

10uF/50V

R104

10K

VCC

IC2D

1 ROM COPY23

SP1

SHORTPIN

C70

0.1uF

IPLON0

11

74LV00A

12

13

D3

C67

0.1uF

VCC

ROM SOCKET(32Pin)

+

C66

10uF/50V

21

21

21

21

3

3

3

3

1,6

1,3,6

A11

C57

0.1uF

VCC

ABC

IPLON01

A21

IC7 7Pi n : GND

Y0

A22

EPROMCS#

3

IC7A

14Pin : VCC

1

9101112131415

Y5Y4Y3Y2Y1

Y6

G2A

G2BG1Y7

GND

8

A23#1,3

D[0..7]1,3,6

A[0..22]1,3,6

VCC

VCC

16

C55

10uF/50V

IC6

+

1234567

C56

0.1uF

VCC

SRAM / FROM / EPROM / POFF

D

D

D

D

2

74HC138

FROMCS#

6

IC7B

74LV08

74LV08

4

5

R97

2.7K

VCC VLED

R96

9.1KF

NOT USE

R95

3.9K

+24V

C

C

C

C

R98

84

56K

84

R99

10KF

+

C60

5

3

1uF/50V

11

RAMCS3# 6

IC7D

74LV08

12

13

POFF# 1,3

C63

1000pF

7

UDZ5.1B

VDD

IC35

B

B

B

B

+

-

6

IC8B

BA10393F

1

+

-

2

IC8A

BA10393F

R100

P-OFF

6.2KF

ZD1

16

Y0

VCC

ABC

G2A

G2BG1Y7

1234567

A221,3

A191,6

A201,3,6

A211,3,6

RAMCS1#

RAMCS2#

C140

100p

C139

100p

IC2C

8

9

9101112131415

Y5Y4Y3Y2Y1

Y6

GND

74HC138

8

A23#1,3

C68

0.1uF

VDD

14Pin : VDD

74LV00A

IC2 7Pi n : GND

10

C69

0.1uF

VDD

87654

87654

87654

87654

A A

A A

A A

A

ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT

– 23 –

B

B

B

B

123456789101112131415

CN2

DB0

DB1

DB2

LRS

LR/W#

VCC

GNDeLE

LE1

LRS1

LR/W#1

16

LCD CN(16Pin)5483-16X

DB7

DB5

DB3

DB6

DB4

R111

12K

LCDON1

VLED

IC15

C

C

C

C

C79

22uF/10V,OS

+

R107

5.6K

R110

2.4KF

4

5

3

BA00ASFP

2

1

R108

10K

BLON1

VCC

C81

22uF/16V

+

D

D

D

D

3/7

12345678

12345678

12345678

12345678

C71

0.1uF

VCC

D[0..7]

g

f

c

d

b

2569121516

19

Q1Q2Q3Q4Q5Q6Q7

D1D2D3D4D5D6D7D8CLK

IC12

347

8

1314171811

D5

D4D2D3

D6

D2D1D0

D7

DB[0..7]

RES# 1,2

POFF# 1,2

9

10

VCC:20pin

GND:10pin

*IC 14

Q8

IC7C

74LV08

CLR

1

8

74HC273

A

21

21

21

21

3

3

3

3

DB5

D4

D6

D5

D7

D7

D6

D5

Q7

Q5

Q6

Q0D0D1Q1Q2D2Q3

D0

D1D5D3

DB0

DB2

VCC

16

VCC

ABC

IC14

1234567

WR#1,2,6

D4

D3

Y0

A01,2,6

DB4

DB5

DB7

DB1

DB4

DB3

DB2

DB6

DB0

C76

74HC138

100pF

VCC

VCC

C77

+

C78

11

LE

Q4

GND

74HC374

9108

DB3

DB1

10K

R106

9101112131415

Y5Y4Y3Y2Y1

Y6

G2A

G2BG1Y7

GND

8

A23#1,2

A221,2

A211,2,6

A201,2,6

10uF/50V

0.1uF

10K

R109

201918171516141312

B1B2B4B3B5B6B7

1G

VCC

DIRA1A2A3A4A5A6A8GND

IC16

1234567

D4

D3

D0

D1D7D2

C80

100pF

11

B8

A7

74HC245

9108

D6

TO POP UP & KEY I/F

123456789101112131415161718192021222324252627282930313233343536373839

CN1

VCC

VLED

123456789

0.1uF

C82

10111213141516171819202122232425262728293031323334353637383940

KS3

M_RESET#

LS2

KS0

KS1

a

gac

d

dp

b

f

KS01

KS2eLS1

KS31

KS21

KS11

M_RESET#1

LS3

KR0

LS0

KR1

KR0#1

KR1#1

LEDS01

LEDS21

LEDS31

LEDS11

KR2

KR3

KR2#1

KR6

KR4dpKR7

KR5

KR4#1

KR5#1

KR3#1

40

52045-4045

KEY I/F R ELAY CN

KR8

FSR#

MODE#

KR9

FSR#1

KR6#1

KR7#1

KR8#1

KR9#1

MODE#1

DB6

DB7

VCC

C72

D[0. .7]

+

D[0..7]1,2,6

VCC

C73

10uF/50V

0.1uF

201918171516141312

VCC

QE

IC13

1234567

DATALE1

C74

10uF/50V

+

C75

0.1uF

LCD I/F / KEY I/F

D

D

D

D

B

B

B

C

C

C

C

B

ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT

– 24 –

87654

87654

87654

87654

A A

A A

A A

A

B

B

B

D

D

D

D

4/7

12345678

12345678

12345678

12345678

JPFA# 6

JPFB# 6

JPFC# 6

VJCOM 6

JPFD# 6

C

C

C

C

VRCOM 6

B

RPFA# 6

RPFB# 6

RPFC# 6

RPFD# 6

A

IC18

2

11

VSRSA

SYNCA

87
6

1
15
10

+

C87

10uF/50V

FB1

BFR601009C8NG

+24V

JPES# 6

VREF 1

C86

0.1uF

R115

100K

3

2

+

-

R113

4 8

IC17A

BA10393F

1

4.7K
VCC

C83

330pF

JPES1

+24V

5

6

+

-

+24V

7

R117

4.7K

RPES1

SYNCB

REFA

5

JAS

0.1uF

100K

BA10393F

REFB
RSB
GA
GB

INA

INB

14

JDS

JAS1

JDS1

R120

IC19

R121

VCC

OUT/A

OUTA

OUT/B

OUTB

RPES# 6

C90

R119

4 8

IC17B

C88

330pF

SMA7036M

9.1kF

2

1

R125

1F(1W)

3

R124

C91

KIA431F

1000pF

R123

1F(1W)

1kF

VH 6

FB2

F1

C92

2200uF/35V

SGD

10K

R127

13
9
4
12

3

240

+

C93

10uF/50V

BFR601009C8NG

R130

20K

C94

10uF/50V

T1.6A/250V

Q2

MTD2955V

IC20

2

11

VSRSA

SYNCA

OUT/A

OUTA

OUT/B

OUTB

5

RAS

14Pin : VCC

IC21 7Pi n : GND

SYNCB

REFA
REFB
RSB
GA
GB

INA

INB

14

RDS

RDS1

RAS1

R133

C96

0.1uF

VCC

87
6

1
15
10

SMA7036M

9.1kF

R136

1F(1W)

3

R135

13
9
4
12

1F(1W)

21

21

21

21

R134

1kF

3

3

3

3

1SS355

D11

1SS355

D10

74HC02

IC21D

13

74HC02

11

12

RAS1

RBS1

IC21C

10

8

9

JAS1

JBS1

0.1uF

C85

R116

1K

R114

R112

18KF

VCC VCC

TM16 TM 1

VCC

4.7K

C84

100pF

R118

1K

PRINTER DRIVER

D

D

D

D

R129

5.6K
Q1

R128

2SK2731

15K

R132

D5

1K

D5

C95

1SS355

22uF/16V

0

R176

D6

D7

1SS355

1SS355

STRB1#1,6

VHCOM1

B

B

B

B

STRB2#1,6

D9

D8

1SS355

1SS355

1SS355

87654

87654

87654

STRB4#1,6

STRB3#1,6

A A

A A

A A

A

87654

+24V

PHUPS1 6PHUPS1

C89

1000pF

FVHS 6

R126

16KF

3.6KF

VCC

VPTEST1

R122

D4

1SS355

VCC

C

C

C

C

ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT

– 25 –

B

B

B

B

FOR D-SUB 9Pin

* CN6 13P in-20Pin

CHANNEL 1

FOR D-SUB 9Pin

* CN6 29Pin

IPL SW

* CN6 4Pi n-11Pin

FOR RS232C UP-1 6DP RELAY PWB

CN3

123456789

3
2
1

S1

QCNCM1060AC03

VCC CI

VCC

101112131415161718192021222324252627282930

CD1

SD1

RD1

RS1

ER1

DR1

CS1

CI1

F7

T500mA/250V

CHANNEL 2

CS2

ER2

SD2

CD2

RD2

DR2

RS2

CI2

VCC

R141

C

C

C

C

STH 1

IC22E

11 10

18K

R143

4.7K

STHA#

IC22F

R144

SHEN# 1

13 12

SHENA

18K

R145

1K

C109

470pF

D

D

D

D

5/7

12345678

12345678

12345678

12345678

SCKA#

RESA

IC22C

3 4

4

74HC02

5

6

RESET1

CKDCR1

HTSA#

14Pin : VCC

IC22(74LV14A) 7Pin : GND

IC22D

5 6

9 8

HTS1

SCK1

IC22A

RESA#

1 2

IC22B

IC21B

STHA#

SHENA

+24V

* CN6 24P in-30Pin

FOR ETHERNET(RJ45),UPP16DP,MCR

RELAY PWB

RESA#

RESA

SCKA#

HTSA#

T500mA/250V(LT5)

A

FOR UPP16DP

52045-3045

21

21

21

21

+

C120

NOT USE

10uF/50V

F2

3

3

3

3

VCC

ER1

T2OUT

T2IN

6

SD1

T3OUT

T3IN

20

T4OUT

T4IN

21

R137

RD1

8

R138

R1IN

R1OUT

CD1

5

R2IN

R2OUT

RS1

C100

10uF/50V

+

VCC

C98

0.1uF
C102

0.1uF

13

17

2312894272318

V-

V+

1110

C1+

C97

0.1uF
121415

T1OUT

VCC10

C1-

C2+

C2-

T1IN

7

16

DR1

CI1

R139

R140

R3IN

R3OUT

262219

R142

R4IN

R4OUT

CS1

R5IN

R5OUT

100oh m*5

25

/SHDN

/EN

24

IC23

C107C105C103

C106

C104

HIN211

RD2

R146

R1IN

R1OUT

8

CD2

R147

5

CI2

R148

R2IN

R2OUT

262219

R149

R3IN

R3OUT

DR2

R4IN

R4OUT

CS2

R150

R5IN

R5OUT

100oh m*5

25

24

/SHDN

/EN

IC24

C115 C116 C117 C118 C119

1000p F*5

HIN211

SD2

RS2

ER2

C112

10uF/50V

+

VCC

1000p F*5

VCC

C110

0.1uF
C114

0.1uF

13

17

2312894272318

V-

V+

VCC10

1110

C1+

C108

0.1uF
121415

T1OUT

T2OUT

T3OUT

T4OUT

C1-

C2+

C2-

T1IN

T2IN

T3IN

T4IN

7

6

16

20

21

C101

C99

0.1uF

0.1uF

RS1#1

ER1#1

TxD11

RxD11

CD1#1

CI1#1

DR1#1

CS1#1

RS232C DRIVER / UP-P16DP CN

D

D

D

D

C

C

C

C

ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT

– 26 –

C111

0.1uF

C113

0.1uF

87654

87654

87654

TxD21

RS2#1

ER2#1

RxD21

DR2#1

CD2#1

CI2#1

CS2#1

B

B

B

B

A A

A A

A A

A

87654

B

B

B

D

D

D

D

6/7

12345678

12345678

12345678

12345678

C

C

C

C

B

A

21

21

21

21

40

CN5

VCC

FB8

WR#

FB9

FB6

FB7

JPFB#4

JPES#4

JPFC#4

JPFD#4

A20

A21

A18

A19

A17

FB5

JPFA#4

UP-S02MB

123456789101112131415161718192021222324252627282930313233343536373839

FB13

FB10

FB11

FB12

SO1

TM14

STRB3#1,4

STRB4#1,4

A16

A14

A9

A13

A12

A15

A10A1A7

A11

FB17

FB14

FB15

FB16

PCLK1

VH4

LATCH#1

SI1

A3

A8

A4

A2

A5

A6

A0D7D6D2D3D0D4D1D5

EFCB322513TS X 25

VCC

FB4

FB3

VH4

VJCOM4

TO OPTION RAM PWB TO PRINTER PR58HM

CN4

FB18

RD#

123456789101112131415161718192021222324252627282930313233343536373839

T_PRINTER CN(40Pin)00 6229 640 003 800

3

3

3

3

DSEN 1

FB21

FB22

FB25

FB19

FB20

STRB2#1,4

STRB1#1,4

RPES#4

FB24

FB26

FB23

VRCOM4

RPFA#4

VDD

RAMCS3#

FB27

RPfB#4

PHUPS14

RPFC#4

FVHS4

RPFD#4

40

OPTION RAM STACK CN.35774-4050

FB28

CN6

1SR154-400

D12

BFR601009C8NG

DRAWER1

STANDARD

RIGHT-ANGLE CON

5046-03A12

3

C122

0.1uF

C121

0.1uF

D13

FB29

BFR601009C8NG

Q4

2SD2143

1SR154-400

DRAWER2

OPTION

CN7

5046-03A12

3

FB30

BFR601009C8NG

Q5

2SD2143

RIGHT-ANGLE CON

C124

0.1uF

C123

0.1uF

R154

R153

FB31

47K

C125

1000pF

R155

2.2K

10K

BFR601009C8NG

WR#1,2,3

A[0..21]1,2,3

D[0..7]1,2,3

RD#1,2

RAMCS3#2

VDD

F3

T400mA/250V

+24V

C136

R151

R164

1.8K
D18

1SS355

+

22uF/16V

DRAWER11

OPTION RAM CONNECTOR / PRINTER CONNECTOR / DRAWER

B

B

B

D

D

D

D

C

C

C

C

ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT

– 27 –

B

C137

R152

+

R165

1.8K
D19

1SS355

22uF/16V

DRAWER21

87654

87654

87654

87654

A A

A A

A A

A

B

B

B

D

D

D

D

C

C

C

C

B

A

7/7

12345678

12345678

12345678

12345678

+24V

ZD2

PTZ30B

C128

+

2200uF/35V

R157

22KF

R159

1.2KF

L1

180uH

D14

RB160L-60

R156

HEAT SINK

Q6

KTD998

TP1

VO

1

10(FUSE)

LM2574HVN

IC25

6,8PIN :NC

1

3
2
4

5 7

C129

0.1uF

R158

18K

VLED +5.8V

VCC +5VIC1:HEA T SINK

VCC

VDD

R162

R161

150

180

C132

/16V

47uF

+

C131

D16

/16V

330uF

+

1SR159-200

C135

1

2

CN9

BT CN(2Pin)5267-02A(BLUE)

0.1uF

21

21

21

21

3

3

3

3

POWERUNIT

3.15A/125V

UL.CSA

C127

6800uF/50V

+

T2A/250V(LT5)

F5

+

CP301

BD1

C126

M0.033u

F4

1

2

CN8

PS CN

CORE

VLED

+24V

D15

L2

180uH

IPEAK>2.2A

2

PQ1CG2032FZ

4

1

IC26

T1.0A/250V

F6

1KF

3KF

R163

R160

ZD3

1SR159-200

PTZ6.2A

C130

/16V

1000uF

+

D17

RB060L40

5

C134

0.01uF

3

+

C133

220uF/50V

POWER

D

D

D

D

[+24V]

[+5V, VLED]

B

B

B

C

C

C

C

B

ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT

– 28 –

87654

87654

87654

87654

A A

A A

A A

A

PWB LAYOUT

ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT

– 29 –

ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT

– 30 –

ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT

– 31 –

q

COPYRIGHT2004 BY SHARP CORPO RATION

All rights reserved.

Printed in Japan.

No part of this publication may be reproduced,

stored in a retrieval system, or transmitted.

In any form or by any means,

electronic, mechanical, photocopying, recording, or otherwise,

without prior written permission of the publisher.

SHARP CORPORATION
Digital Document Systems Group
Products Quality Assurance Department
Yamatokoriyama, Nara 639-1186, Japan

2004 March Printed in Japan

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