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SERVICE MANUAL
CODE : 00ZERA520USME
ELECTRONIC
CASH REGISTER
ER-A520
ER-A520
MODEL ER-A530
(U, A version)
ER-A530
CONTENTS
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 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
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
ER-A530 KEYLAYOUT
SLIP
#/TM
Slip printer key
■ STANDARD KEY LAYOUT
Non-add code/Date & time display key
AUTO
1
L1
L2
%
L3
RECEIPT
JOURNAL
97
87
75
64
53
42
31
20
9
98
88
76
65
54
43
32
21
10
91
81
69
58
47
36
25
14
3
92
82
70
59
48
37
26
15
4
93
83
71
60
49
38
27
16
5
94
84
72
61
50
39
28
17
6
95
85
73
62
51
40
29
18
7
96
86
74
63
52
41
30
19
8
99
89
77
66
55
44
33
22
11
100
90
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.
AUTO
2
RCPT
VOID
RFND
79
67
56
45
34
23
12
1
80
68
57
46
35
24
13
2
AUTO
3
RP
SEND
INQ
78
SERV
#
PLU/
SUB
NC
CONV
CH1
@
PBAL
SRVC
CL
9
FOR
■ Optional keys
CH2
7
4
1
0
8
5
2
FINAL CH3
6
DEPT#
Dept. number key
Percent 3 thru 5 keys
Discount 2 thru 5 keys
Charge 3 thru 9 keys
Cash 2 thru 5 keys
Currency conversion 2 thru 4 keys
Received-on-account 2 key
Paid-out 2 key
MDSE
CHK
3
SBTL
%3 ~ %5
SBTL CA/AT
00 000
- 2 ~ -5
■ TEXT PRESET KEY LAYOUT
CH3 ~ CH9
CA2 ~ CA5
CONV2 ~ CONV4
RA2
BACK
SPEACE
¿
?
(
{
<
)
}
[
]
Ñ
RECEIPT JOURNAL
>
=
-
/
” ”
!
#
$
%
^
&
@
2
+
1
3
4
R
F
5
T
6
7
U
J
8
I
9
0
@
PO2
Q
A
W
S
E
D
Y
H
O
L
P
CL
FOR
G
K
7
8
5
9
6
AUTO3 ~ AUTO10
SRVC
Automatic sequencing 3 thru 10 keys
Service key
;
.
:
_
X
C
V
B
N
M
,
Z
4
1
0
(SHIFT)
(DC)
2
3
TRAY SBTL
RETURN
Tray subtotal key
CA/AT
SBTL
00
000
Return key
CHK2~CHK5
TRANS OUT
TRANS IN
CA TIP
Check 2 through 5 keys
Transfer out key
Note:
• 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.
Transfer in key
Cash tip key
• 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
CH TIP
Charge tip key
TIP PAID
Tip paid key
EAT IN1~EAT IN3
Eat in 1 thru 3 keys
TAX2 SHIFT~TAX4 SHIFT Tax 2 thru 4 shift keys
■ Key names
DEPO
Deposit key
2 RECEIPT
Receipt paper feed key
Journal paper feed key
DEPORFND
LEVEL#
RP SEND
GRT EXEMPT
OPEN TARE
REPEAT
GASSBTL
P-SHIFT#
SCALE
Deposit refund key
PLU level shift number key
Remote printer send key
Gratuity exempt key
Tare entry key
2 JOURNAL
[0] ~ [9], [00], [000] Numeric keys
[ • ]
Decimal point key
Clear key
CL
@/FOR
RCPT
RFND
VOID
PLU/SUB
[ 1] ~ [100]
L1~L3
NC
Multiplication key
Receipt print key
Refund key
Repeat entry key
Gasoline sales subtotal key
Price shift number key
Scale entry key
Void key
Price lookup/subdepartment/UPC key
Direct price lookup keys
PLU level shift 1 thru 3 keys
New check key
L1~L5
PLU level shift 1 thru 5 keys
Price level shift 1 thru 6 keys
Validation print key
Cover count entry key
No delete key
P1~P6
PRINT
SRVC
FINAL
PBAL
-
Service key
CVCNT
Final key
NO DEL
BS
Previous balance key
Discount 1 key
Bill separation key
Bill totalize/Bill transfer key (CHECK-ADD)
Birthday entry key
BT
%
Percent 1 key
BIRTH
INQ
PLU/UPC inquiry key
Server code entry key
SERV#
RFND SALES
WASTE
C NEXT
C CANCEL
EDIT TIP
GLU RECALL
000
Refund sales key
AUTO1 ~ AUTO3 Automatic sequencing 1 thru 3 keys
Waste mode key
CONV
Currency conversion key
Charge 1 thru 3 keys
Check 1 key
Condiment next key
Condiment cancel key
Edit tip key
CH1 ~ CH3
CHK
MDSE SBTL
SBTL
Merchandise subtotal key
Subtotal key
Table# recall key
Numeric key
CA/AT
Cash/amount tendered key
Remote printer send key
RP SEND
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.
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.
ER-A520U/ER-A530U SPECIFICATIONS
– 2 –
■ Optional keys
4. MODE SWITCH
DEPT#
Dept. number key
4-1. MODE SWITCH AND MODE KEYS
%2 ~ %5
- 2 ~ -5
CH4 ~ CH9
CA2 ~ CA5
Percent 2 thru 5 keys
Discount 2 thru 5 keys
Charge 4 thru 9 keys
Cash 2 thru 5 keys
Operative range
MA
SM
CONV2 ~ CONV4 Currency conversion 2 thru 4 keys
RA1, RA2
PO1, PO2
Received-on-account 1 and 2 keys
Paid-out 1 and 2 keys
AUTO4 ~ AUTO10 Automatic sequencing4 thru 10 keys
REG
CHK2 ~ CHK5
TRANS OUT
TRANS IN
CA TIP
Check 2 through 5 keys
Transfer out key
Transfer in key
Cash tip key
OP X / Z
MGR
X1/Z1
OFF
PGM1
X2/Z2
PGM2
(SRV)
(SRV')
CH TIP
Charge tip key
Tip paid key
TIP PAID
EAT IN1 ~ EAT IN3 Eat in 1 thru 3 keys
• Manager key (MA)
• Submanager key (SM)
TAX1 SHIFT ~
TAX4 SHIFT
Tax 1 thru 4 shift keys
DEPO
Deposit key
DEPO RFND
TAX
Deposit refund key
Manual tax key
TRAY SBTL
RETURN
GAS SBTL
#/TM
Tray subtotal key
Return key
• Operator key (OP)
Gasoline sales subtotal key
Non-add code/Date & time display key
No-sale key
NS
SCALE
Scale entry key
LEVEL#
L4, L5
PLU level shift number key
PLU level shift 4 and 5 keys
Price shift number key
Price level shift 1 thru 6 keys
Validation print key
Cover count entry key
Slip printer key
The mode switch has these settings:
P-SHIFT#
P1 ~ P6
PRINT
OFF:
This mode locks all register operations.
No changes may occur to register data.
CV CNT
SLIP
OP X/Z: This setting allows cashiers 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 utilize this func-
tion, the register must be programmed for "OP X/Z mode avail-
able" in the PGM2 mode.)
BS
Bill separation key
Bill totalize/Bill transfer key (CHECK-ADD)
No delete key
BT
NO DEL
GRT EXEMPT
OPEN TARE
REPEAT
AMT
Gratuity exempt key
Tare entry key
REG:
For entering sales
Repeat entry key
PGM1: To program those items that need to be changed often: e.g.,
Amount entry key
unit prices of departments or PLUs, and percentages.
PRICE CHANGE
BIRTH
UPC price change key
Birthday entry key
PGM2: To program all PGM1 programs and those items that do not
require frequent changes: e.g., date, time, or a variety of reg-
ister functions.
RFND SALES
WASTE
C NEXT
C CANCEL
EDIT TIP
GLU RECALL
FS SHIFT
FS TEND
Refund sales key
Waste mode key
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.
Condiment next key
Condiment cancel key
Edit tip key
X1/Z1: To take the X/Z reports for various daily totals.
Table# recall key
X2/Z2: To take the X/Z reports for various periodic (weekly or monthly)
Food stamp shift key
Food stamp tender key
consolidation of totals.
Note: Department and direct PLU keys can be expanded. If you require
expansion of the department or direct PLU keys, please contact
your authorized SHARP dealer.
ER-A520U/ER-A530U SPECIFICATIONS
– 3 –
5. DISPLAY
6. PRINTER
1) PRINTER (PR-58HM)
5-1. OPERATOR DISPLAY
Item
Description
2: Receipt and Journal
No. of station
Validation
Display device:
Number of lines:
LCD
No
2 lines
Printing system
No. of dot
Line thermal
Receipt:
Journal
Number of positions: 16 positions
360 dots
Color of display:
Character font:
Character size:
Yellow / Green
5 x 7 dot
360 dots
0.125mm
0.125mm
Dot pitch
Horizontal:
Vertical:
4.84 (W) x 8.06 (H) mm
Font
10 dots (W) x 24 dots (H)
Layout:
Printing capacity
Receipt:
Journal:
Max. 30 characters
Max. 30 characters
Character size
Print pitch
1.25 mm (W) x 3.0 mm (H): At 10 x 24 dots
Column distance: 1.5 mm
Row distance:
3.75 mm
Paper feed speed
Reliability
Approximate 65 mm/s
Mechanism:
MCBF 5milion lines
Paper end sensor
Cutter
Yes (Receipt and Journal)
Manual
Paper near end sensor No
Printing area
5-2. CUSTOMER DISPLAY
106(848dots)
(5.5)
Display device:
Number of lines:
LED
(7.0)
360dots
(45)
1 line
Number of positions: 7 positions
Color of display:
Style:
Yellow / Green
0.125
(5.5)
(7.0)
Pop up type
Character form:
Character size:
7 segment + Dp
57.5 0.5
5.0
UNIT: mm
14.2mm (H) x 7.9mm (W)
Printing format
12 x 24
font
1.5 (12dots)
1.5 (12dots)
Layout:
0.125
UNIT: mm
2) PAPER
Item
Description
Name
Heat-quality paper
Roll dimension 57.5 m 0.5 mm in width
Thickness
0.06 mm to 0.08 mm
ER-A520U/ER-A530U SPECIFICATIONS
– 4 –
7-3. LOCK (LOCK KEY: LKGIM7331BHZZ)
• Location of the lock: Front
7. DRAWER
[OUTLINE]
• Method of locking and unlocking:
• Standard equipment: Yes
• Max. number of additional drawers: 1
• The drawer consists of:
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.
1) Drawer box (outer case) and drawer
2) Money case
Key No:
SK1-1
3) Lock (attached to the drawer)
[SPECIFICATION]
7-1. DRAWER BOX AND DRAWER
Model name of the drawer
box
SK423
Size
420 (W) x 427 (D) x 112 (H) mm
color
Gray 368
Metal
–
Material
Bell
Release lever
Standard equipment: attached to the
bottom
Drawer open sensor
YES
7-2. MONEY CASE
For U version
Allowed
For A version
Allowed
Separation from the drawer
Separation of the coin compart-
ments from the money case
Disallowed
Allowed
Bill separator
No
No
Number of compartments
5B/5C
5B/6C
For U version
For A version
5B/5C
5B/6C
CHAPTER 2. OPTIONS
1.OPTIONS
NO
1
CLASSIFICATION
Drawer
COMPONENT NAME
MODEL NAME
ER-03DW
REMARK
Remote drawer
ER-04DW
2
Key kit
1 x 1 key top kit (30)
1 x 2 key top kit (30)
2 x 2 key top kit (10)
1 x 1 dummy key kit (30)
5 x 1 dummy key kit (10)
ER-11KT7
ER-12KT7
ER-22KT7
ER-11DK7G
ER-51DK7G
UP-P16DP
UP-S02MB
ER-A520 only
3
4
Display
Memory
RAM board
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.
3. PROGRAM RESET
A MASTER RESET clears the entire memory and resumes initial values.
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.
A PROGRAM RESET resumes the initial program without clearing the
memory.
There are 2 kinds of MASTER RESET operations.
3) Without pressing the JOURNAL FEED key, turn the
mode switch to (SRV) position from the (SRV’) posi-
tion.
MASTER RESET 1: Normal MASTER RESET
Clears the entire memory and resumes initial
values.
Procedure B: 1) Unplug the AC power cord from the wall outlet.
2) Set the mode switch to the (SRV) position.
MASTER RESET 2: It enables the layout of fixed keys in addition to
MASTER RESET 1.
3) Without pressing the JOURNAL FEED key, plug in
the AC power cord from the wall outlet.
Fixed keys: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9]
[00] [000] [.] [CL] [@/FOR] [SBTL]
[CA/AT]
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.
1. MASTER RESET 1
Please use “Procedure A” or “Procedure B”
*“Procedure C” can be executed when SRV#916-B is +4: PROGRAM
RESET in PGM2 = ENABLE.
Procedure A: 1) Set the mode switch to the (SRV’) position.
2) Plug in the AC power cord to the wall outlet.
Note: Procedure B and C cannot reset the hardware.
Procedure A must be used to reset the hardware.
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: Procedure B 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: Procedure 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
1. BLOCK DIAGRAM
2. MEMORY MAP
ER-A520 and ER-A530
2-1. ADDRESS MAP
Microprocessor mode : MODE0
IPLION0# "L" IPLON0# "H"
DRAWER1
000000h
000400h
SFR AREA
INTERNAL RAM AREA(10KB)
INTERNAL RESERVE AREA
INTERNAL
AREA
(1BCLK:0WAIT)
DRAWER2
㪧㪦㪮㪜㪩㩷㪪㪦㪬㪚㪜
000800h
100000h
NOT USED
EXTERNAL
AREA0
(2BCLK:1WAIT)
RAM OPT RAM FROM
CPU
EXTERNAL I/O
RAM 10KB
200000h
300000h
400000h
500000h
1MB
2MB
LCD
1MB
EXTERNAL
AREA1
(3BCLK:2WAIT)
NOT USED
DRIVER, SENSOR
PRINTER
16 digits
x 2LINE
STD SRAM(1MB)
SEG DRIVER
DIG DRIVER
POPUP
7 digits
LED
EXPANSION SRAM(UP-S02MB)
400000h - 5FFFFFh
4 to 16
DECODER
600000h
700000h
800000h
KEY SCAN
EXPANSION SRAM
(UP-S04MB)
KEY RETURN
KEY & SW
400000h - 5FFFFFh
EXTERNAL
AREA2
(3BCLK:2WAIT)
CI
5V
RS232C CH1
900000h
A00000h
B00000h
C00000h
D00000h
E00000h
F00000h
FFFFFFh
RS232C CH2
NOT USED
CPU
MITSUBISHI M30802GP 12MHz
(INTERNAL RAM 10KB)
EXTERNAL MEMORY
STD RAM
OPT RAM
1MB
2MB
NOT USED
FLASH ROM 1MB
PRINTER
PR58HM
EXTERNAL
AREA3
(2BCLK:1WAIT)
EPROM(1MB)
F-ROM(1MB)
NOT USED
F-ROM(1MB)
EPROM(1MB)
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 Pin
Signal
name
Initial After
value POFF
PIN Pin
Signal
name
Initial After
value POFF
PORT
I/O
Function
PORT
I/O
O
Function
No. name
No. name
P00 122
P01 121
P02 120
P03 119
P04 113
P05 112
P06 111
P07 110
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
−
−
−
−
−
−
−
−
L
In
In
In
In
In
In
In
In
DATA BUS D0
DATA BUS D1
DATA BUS D2
DATA BUS D3
DATA BUS D4
DATA BUS D5
DATA BUS D6
DATA BUS D7
P47 69 A23#
/CS0#
A23#
−
Out L Address Bus A23
P50 65 WR#
WR#
O
−
Out L WRITE STROBE
SIGNAL
D2
D3
P51 64 BHE#
P52 63 RD#
BHE#
RD#
O
O
−
−
Out L NOT USED
D4
Out L READ STROBE
SIGNAL
D5
P53 62 BCLK
BCLK
O
O
I
−
−
−
−
−
H
−
−
H
H
−
−
H
−
Out L BCLK CLOCK
Out L NOT USED
D6
P54 55 HLDA# HLDA#
P55 54 HOLD# HOLD#
D7
In
NOT USED
P10 109 P10
P11 108 P11
P12 107 P12
P13 106 P13
P14 105 P14
RAS
Out L RECEIPT
PAPER FEED A
P56 53
ALE
ALE
RDY#
RS2#
CI2#
RD2
O
I
Out L NOT USED
RBS
RCS
RDS
JAS
JBS
JCS
JDS
O
O
O
O
O
O
O
L
L
L
L
L
L
L
Out L RECEIPT
PAPER FEED B
P57 52 RDY#
P60 47 RTS0#
P61 46 CLK0
P62 45 RxD0
P63 44 TxD0
P64 43 RTS1#
P65 42 CLK1
P66 40 RxD1
P67 38 TxD1
In
In
In
In
In
In
In
In
In
In
NOT USED
RS-232 RS2
RS-232 CI2
RS-232 RD2
RS-232 TD2
RS-232 RS1
RS-232 CI1
RS-232 RD1
RS-232 TD1
O
I
Out L RECEIPT
PAPER FEED C
Out L RECEIPT
PAPER FEED D
I
TD2
O
O
I
Out L JOURNAL
PAPER FEED A
RS1#
CI1#
RD1
P15 104 P15
/INT3#
Out L JOURNAL
PAPER FEED B
I
P16 103 P16
/INT4#
Out L JOURNAL
PAPER FEED C
TD1
O
I
P70 37 P70/
TA0out
KR0#
KEY RETURN
SIGNAL 0
P17 102 P17
/INT5#
Out L JOURNAL
PAPER FEED D
P71 36 P71/
TA0in
KR1#
KR2#
I
I
−
−
−
−
−
−
−
L
In
In
In
In
In
In
In
In
In
In
In
In
In
KEY RETURN
SIGNAL 1
P20 101
P21 100
P22 99
P23 98
P24 97
P25 96
P26 95
P27 94
P30 92
P31 85
P32 84
P33 83
P34 82
P35 81
P36 80
P37 79
P40 78
P41 77
P42 75
P43 73
P44 72
A0
A1
A0
A1
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
Out L Address Bus A0
Out L Address Bus A1
Out L Address Bus A2
Out L Address Bus A3
Out L Address Bus A4
Out L Address Bus A5
Out L Address Bus A6
Out L Address Bus A7
Out L Address Bus A8
Out L Address Bus A9
Out L Address Bus A10
Out L Address Bus A11
Out L Address Bus A12
Out L Address Bus A13
Out L Address Bus A14
Out L Address Bus A15
Out L Address Bus A16
Out L Address Bus A17
Out L Address Bus A18
Out L Address Bus A19
Out L Address Bus A20
P72 35 P72/
TA1out
KEY RETURN
SIGNAL 2
A2
A2
P73 34 P73/
TA1in
KR3#
I
KEY RETURN
SIGNAL 3
A3
A3
A4
A4
P74 33 P74/
TA2out
KR4#
I
KEY RETURN
SIGNAL 4
A5
A5
A6
A6
P75 32 P75/
TA2in
KR5#
I
KEY RETURN
SIGNAL 5
A7
A7
P76 31 P76/
TA3out
KR6#
I
KEY RETURN
SIGNAL 6
A8
A8
A9
A9
P77 30 P77/
TA3in
KR7#
I
KEY RETURN
SIGNAL 7
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
P80 29 P80/
TA4out
BUZZER
DSEN
POFF#
SHEN#
O
I
BUZZER SIG-
NAL
P81 28 P81/
TA4in
−
−
−
−
−
DRAWER OPEN
SENSE SIGNAL
P82 27 P82/
INT0#
I
P-OFF SIGNAL
P83 26
P84 25
P85 24
P83
I
UP-P16DP
SHEN# SINGNAL
/INT1#
P84
/INT2#
I
NOT USED
P85
/NMI#
NMI#
I
NMI (CON-
NECTED TO
VDD)
A20
/CS3#
P86 18 P86/
Xcout
Xcout
Xcin
O
I
−
−
L
Out SUB CLOCK
(32.768kHz)
P45 71
P46 70
A21
/CS2#
A21
A22
O
O
−
−
Out L Address Bus A21
Out L Address Bus A22
P87 17 P87/
Xin
In
SUB CLOCK
(32.768kHz)
A22
/CS1#
P90
7
P90/
CLK3
SCK
O
Out L UP-P16DP
CLOCK SIGNAL
ER-A520U/ER-A530U HARDWARE DESCRIPTION
– 8 –
PIN Pin
Signal
name
Initial After
value POFF
PIN Pin
Signal
name
Initial After
value POFF
PORT
P91
I/O
I
Function
PORT
I/O
Function
No. name
No. name
6
5
4
3
2
1
P91/
STH
−
L
L
L
L
L
−
−
In
UP-P16DP STH
SIGNAL
P134 51 P134
P135 50 P135
P136 49 P136
P137 48 P137
P140 14 P140
ER1#
CD1#
CS1#
DR1#
KR8#
O
I
H
−
−
−
−
In
In
In
In
In
RS-232 ER1
RS-232 CD1
RS-232 CS1
RS-232 DR1
RxD3
P92
P93
P94
P95
P96
P92/
TxD3
HTS
O
O
O
O
O
I
Out L UP-P16DP HTS
SIGNAL
I
I
DRAWER1
DRAWER2
P93/
RTS3#
Out L DRAWER 1
DRIVE SIGNAL
I
KEY RETURN
SIGNAL 8
P94/
RTS4#
Out L DRAWER 2
DRIVE SIGNAL
P141 13 P141
P142 12 P142
KR9#
I
I
−
−
In
In
KEY RETURN
SIGNAL 9
P95/
CLK4
PCLK
SO
Out L PRINTER
CLOCK
MODE#
MODE KEY
RETURN SIG-
NAL
P96/
TxD4
Out L PRINTER DATA
OUT
P143 11 P143
P144 10 P144
FSR#
I
−
In
FEED SENSE
SIGNAL
P97 144 P97/
RxD4
SI
In
PRINTER DATA
IN
WP#
I
I
−
−
H
In
In
In
Flash ROM WP#
NOT USED
P100 141 P100/
AN0
TM
I
In
PRINTER HEAD
TEMPERATURE
MONITOR
P145
P146
9
8
P145
P146
RY/BY#
CKDCR
O
UP-P16DP
RESET SIGNAL
P101 139 P101/ VPTEST
AN1
I
−
In
PRINTER HEAD
VOLTAGE MON-
ITOR
P150 131 P150
P151 129 P151
P152 128 P152
P153 127 P153
P154 126 P154
P155 125 P155
P156 124 P156
P157 123 P157
KS0
KS1
O
O
O
O
O
O
O
O
L
L
L
L
L
L
L
L
Out L KEY STROBE
SIGNAL 0
P102 138 P102/
AN2
VREF
PHUPS
RPES
I
I
I
−
−
−
In
In
In
REFERENCE
VOLTAGE
Out L KEY STROBE
SIGNAL 1
P103 137 P103/
AN3
PRINTER HEAD
UP DETECTION
KS2
Out L KEY STROBE
SIGNAL 2
P104 136 P104/
AN4
PRINTER
RECEIPT PAPER
EMPTY DETEC-
TION
KS3
Out L KEY STROBE
SIGNAL 3
LEDS0
LEDS1
LEDS2
LEDS3
Out L LED STROBE
SIGNAL 0
P105 135 P105/
AN5
JPRS
I
−
In
PRINTER JOUR-
NAL PAPER
EMPTY DETEC-
TION
Out L LED STROBE
SIGNAL 1
P106 134 P106/ VHCOM
AN6
O
L
Out L PRINTER
Out L LED STROBE
SIGNAL 2
POWER CON-
TROL
Out L LED STROBE
SIGNAL 3
P107 133 P107/
AN7
I
−
H
H
H
H
H
L
In
In
In
In
In
In
NOT USED
P110 118 P110
P111 117 P111
P112 116 P112
P113 115 P113
P114 114 P114
P120 90 P120
P121 89 P121
STRB1#
STRB2#
STRB3#
STRB4#
LATCH#
BLON
O
O
O
O
O
O
O
PRINTER
STROBE 1
POWER SUPPLY/CONTROL PINS
PORT
Xin
PIN No.
22
I/O
PIN NAME
Xin
FUNCTION
SYSTEM CLOCK IN
NC
PRINTER
STROBE 2
I
O
I
PRINTER
STROBE 3
Xout
20
Xout
RESET#
BYTE
CNVss
Vref
19
RESET#
BYTE
CNVss
Vref
RESET
PRINTER
STROBE 4
15
I
Connected to VDD
Connected to VDD
Connected to VDD
PRINTER
LATCH
16
142
Out L LCD BACK
LIGHT ON
LCDON
L
Out L LCD POWER
ON
P122 88 P122
P123 87 P123
P124 86 P124
P125 68 P125
LRS
LR/W#
LE
O
O
O
O
L
L
L
L
Out L LCD RS
Out L LCD R/W#
Out L LCD ENABLE
LWDL
Out L LCD WRITE
DATA LATCH
P126 67 P126
P127 66 P127
P130 61 P130
P131 60 P131
P132 58 P132
P133 56 P133
IPLON0
I
O
O
I
−
−
H
−
−
−
In
IPL from ROM
Out L NOT USED
ER2#
CD2#
CS2#
DR2#
In
In
In
In
RS-232 ER2
RS-232 CD2
RS-232 CS2
RS-232 DR2
I
I
ER-A520U/ER-A530U HARDWARE DESCRIPTION
– 9 –
4-2. HEAD CONTROL
4. PRINTER CONTROL
HEAD: All864dot
The PR-58HM printer is employed.
Printable area:RECEIPT side, 360dot;
JOURNAL side, 360dot
4-1. STEPPING MOTOR CONTROL
The stepping motor is driven at a constant current by SMA7036M (made
by Sanken).
Related PORT
No.
2
CPU PORT
P95/CLK2
P96/TXD4
P97/RXD4
P110
Signal to be used
PCLK
1step: 0.125mm, 1dot: 1step
Printing speed: 50mm/s
1
SO
144
118
117
116
115
SI
<CPU PORT>
STRB1#
STRB2#
STRB3#
STRB4#
No.
109
108
107
106
105
104
103
102
CPU PORT
P10
Signal to be used
P111
RAS
RBS
RCS
RDS
JAS
JBS
JCS
JDS
P112
P11
P113
P12
P13
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
P14
Total 864 dots
P15
P16
P17
*When turning off the printer power supply, make sure to turn
/STB1,2,3,4 to “H.”
<DRIVING STEP>
*Do not turn on the printer under paper empty state.
RECEIPT MOTOR
*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.
Driver IC input (CPU output)
Motor drive signal
STEP RAS RBS RCS RDS /RPFA /RPFB /RPFC /RPFD
1
2
3
4
L
L
H
H
L
L
H
H
L
H
L
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
ON
4-3. OTHER PORTS
H
H
L
OFF
OFF
ON
No.
136
135
134
133
CPU PORT
P103
Signal to be used
PHUPS
L
H
ON
OFF
P104
PRES
Driver IC input (CPU output)
Motor drive signal
P105
PJES
STEP JAS JBS JCS JDS /JPFA /JPFB /JPFC /JPFD
P106
VHCOM
1
2
3
4
L
L
H
H
L
H
L
L
H
H
L
ON
ON
OFF
OFF
ON
OFF
ON
ON
OFF
OFF
ON
PHUPS: "1" Head up
H
H
L
OFF
OFF
ON
PRES : "0" Receipt paper end
PJES : "0" Journal paper end
L
H
ON
OFF
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).
*When the motor is stopped, rush conduction must be performed for
10ms in the same phase as the last excitation phase to turn off con-
duction to all the phases.
3 RAS~RDS and JAS~JDS are turned to "L".
Allow at least 30ms before boosting after stopping.
When boosting, rush conduction must be performed for 10ms in the
first excitation phase to start the motor by acceleration control.
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.
6-1. LCD CONTROL
LCD control is same as the ER-A275P.
<CPU PORT>
LCD-related Register
Function
Signal to
be used
No. CPU PORT
Function
Address
100001h
100001h
R/W
W
LCD Write Data
LCD Read Data
130
138
137
AN0
AN1
AN2
TM
PRINTER HEAD TEMPERATURE
MONITOR
R
VPTEST PRINTER HEAD VOLTAGE MONI-
TOR
<CPU PORT>
Signal to
No. CPU PORT
be used
VREF
REFERENCE VOLTAGE
Function
90
89
88
87
86
85
P120
P121
P122
P123
P124
P125
BLON
LCDON
LRS
LCD BACK LIGHT ON SIGNAL
LCD ON SIGNAL
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.
LCD RS SIGNAL
LR/W#
LE
LCD R/W# SIGNAL
LCD E SIGNAL
The printer head conduction must be controlled as shown below.
HEAD
TEMPERATURE
A/D CONVERSION
VALUE (DEC)
DATALE LCD WRITE DATA LATCH
OPERATION
MOTOR LOCK
-10°C or below
-10°C ~ 0°C
929~1023
869~928
P125: LWDL
L : LCD write data latch
PRINT IN ENERGIZING
TIME AT 0°C
P124:
E
0°C ~ 70°C
232~868
0~231
PRINT FOR CONDUCTION
TIME SPECIFIED ON PR-
58H CONTROL SPEC.
Enable Signal
P123: R/W#
H: Data read L: Data Write
P122 LRS
H: Data input L: Instruction Input
Enable
70°C or above
MOTOR LOCK
5-2. PRINTER HEAD VOLTAGE MONITOR
DATA WRITE (CPU 3 LCD)
A voltage is supplied by the printer head power source, passed through
the printer, and divided by the resistor is inputted to AN1 pin.
LRS
The A/D conversion value must be read after turning VHCOM signal
(CPU P106) to "H" and stabilizing the voltage (after 10msec).
LR/W#
LE
The printable voltage range of the printer is 15V~26V. The voltage is
calculated from the AN1 value and the A/D conversion value of the ref-
erence voltage.
DB0-7
LWDL
Valid Data
5-3. REFERENCE VOLTAGE
The reference voltage (2.495Vm0.085V) generated by KIA431F is input-
ted to AN2 pin.
P122 "x" 100001h P124 "H" P124 "L" P123 "H"
P123 "L"
DATA
WRITE
469 (DEC) t VREF t 557 (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
DATA READ (CPU 1 LCD)
LRS
LR/W#
LE
DB0-7
LWDL
Valid Data
P122 "x" P125 "H" P124 "H" 100001h P124 "L" P125 "L"
P123 "H"
DATA
READ
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 –
6-2. KEY/DISPLAY SCAN
Key/display scan and key read are performed at the following timing.
1
2
3
Key/display scan cycle: 10ms
Blanking time: 50us
KEY DATA READ timing: Read before 10~100us of strobe signal
OFF.
Key/Display-related Register
Function
Address
100000h
R/W
W
LED Segment Signal
<LED Segment Signal> Write
Address Bit7
100000h DP
Bit6
g
Bit5
f
Bit4
e
Bit3
Bit2
c
Bit1
B
Bit0
d
a
<CPU PORT>
Signal to
be used
Signal to
be used
No. CPU PORT
Function
No. CPU PORT
Function
12
11
P142
P143
MODE#
FSR#
MODE KEY SIGNAL
FEED SENS SIGNAL
131
129
128
127
126
125
124
123
P150
P151
P152
P153
P154
P155
P156
P157
KS0
KS1
KS2
KS3
LS0
LS1
LS2
LS3
KEY STROBE SIGNAL 0
KEY STROBE SIGNAL 1
KEY STROBE SIGNAL 2
KEY STROBE SIGNAL 3
LED STROBE SIGNAL 0
LED STROBE SIGNAL 1
LED STROBE SIGNAL 2
LED STROBE SIGNAL 3
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
ST1 : MODE Key PGM
ST2 : MODE Key VOID
ST3 : MODE Key OP X/Z
ST4 : MODE Key REG
ST5 : MODE Key MGR
ST6 : MODE Key X1/Z1
ST7 : MODE Key X2/Z2
“0” SRV mode
“0” PGM mode
“0” VOID mode
“0” OP X/Z mode
“0” REG mode
“0” MGR mode
“0” X1/Z1 mode
“0” X2/Z2 mode
KS3~0 : KEY strobe signal is generated.
LS3~0 : POP UP Display strobe signal is generated.
Signal to
No. CPU PORT
Function
be used
KR0#
KR1#
KR2#
KR3#
KR4#
KR5#
KR6#
KR7#
KR8#
KR9#
46
45
44
43
42
41
40
39
14
13
P70
P71
P72
P73
P74
P75
P76
P77
P140
P141
KEY RETURN SIGNAL 0
KEY RETURN SIGNAL 1
KEY RETURN SIGNAL 2
KEY RETURN SIGNAL 3
KEY RETURN SIGNAL 4
KEY RETURN SIGNAL 5
KEY RETURN SIGNAL 6
KEY RETURN SIGNAL 7
KEY RETURN SIGNAL 8
KEY RETURN SIGNAL 9
P143 ST10 : Receipt feed
ST11: Journal feed
“0” Receipt feed
“0” Journal feed
“1” Flat key
ST13 : Keypad select
“1” JNormal key
The Flat Keyboard takes key data in twice during the strobe period.
For read timing, refer to the timing chart below.
R0#~KR9# : Flat Keyboard KEY Return signal
KR0#~KR7# : Normal Keyboard KEY Return signal
588us ±20us
1h
10 - 100us
KS0 - 3
0h
2h
Fh
0h
(0h~Fh repeat)
Key Return Sinnal
950 25us
50 10us
1h
LS0 - 3
0h
Fh
Fh
Fh
0h
9h
(0h~9h repeat)
Max.10us
LED Segment
Signal
1ST DIGIT
DISPLAY DATA
2nd DIGIT
DISPLAY DATA
1ST DIGIT
DISPLAY DATA
BLANK
BLANK
BLANK
ER-A520U/ER-A530U HARDWARE DESCRIPTION
– 12 –
6-3. DISPLAY
8. POWER
The ER-A520/530 is provided with the LCD display of 5 x 7 dot, 2 line,
16 digit on the FRONT side, and the LED display of 7 digit on the POP
UP side.
Service interruption should be performed
within 10ms after generation of /POFF.
FRONT:
24V
DRAWER
PRINTER
LM2574 + TR
TRANS.
ON/OFF control
(MODE SW)
PQ1CG2032
VLED 5.7V
VCC 5.0V
POP UP:
VDD 5.0V
/POFF detection point
BATTERY
• DISPLAY DIGIT SIGNAL
The above ST0~ST6 are DIGIT signals.
ST0:1st digit~ST6:7th digit
9. FLASH MEMORY REWRITE PROCEDURE
The FLASH ROM of Fujitsu MBM29F800TA-90 is employed.
Signal to
• DISPLAY SEGMENT SIGNAL
No. CPU PORT
Function
The LED segment signal can be outputted by writing segment data
to 4000h.
be used
IPLON0
IPLON1
WP#
67
66
10
9
P126
P127
P144
P145
IPL from EP-ROM
DATA~SEGMENT assignment
IPL from COM
D0~D6 3 a~g
F ROM Write Protect signal
F ROM Ready/Busy signal
D7
3 DP
RY/BY#
IPLONO# :"1"; IPL from EP-ROM. Executed from ER ROM.
IPLON1# :"1"; IPL from COM
7. SERIAL I/O
The ER-A520/530 is provided with 2ch RS-232 ports as standard provi-
sion.
Ch1 and Ch2 of RS-232 are assigned to the following CPU ports.
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
Ch1
Pin No.
42
CPU PORT
/RTS1#
P65
Signal to be used
RS1#
IPL from EP-ROM : After setting the IPL SW to ON side, turn on the
power to boost the EP-ROM.
41
CI1#
IPL from COM : Data from PC are written into the FLASH ROM through
the COM port. (Max. 38.4kbps)
40
RXD1
TxD1
RD1
39
SD1
51
P134
ER1#
10. DRAWER
50
P135
CD1#
49
P136
CS1#
The ER-520/530 is provided with 2ch of drawer ports.
48
P137
DR1#
The drive time of the drawer solenoid is as follows:
50ms (max) 45ms(min)
Ch2
Pin No.
47
CPU PORT
/RTS0#
P61
Signal to be used
RS2#
<CPU PORT>
Signal to
be used
No. CPU PORT
Function
46
CI2#
4
3
P93
P94
P81
DRAWER1 DRAWER1 OPEN SIGNAL
DRAWER2 DRAWER2 OPEN SIGNAL
45
RXD0
TxD0
RD2
44
SD2
28
DSEN
DRAWER OPEN SIGNAL
61
P130
ER2#
60
P131
CD2#
DRAWER1 : "1", DRAWER 1 OPEN
DRAWER2 : "1", DRAWER 2 OPEN
58
P132
CS2#
56
P133
DR2#
DSEN :
"1", DRAWER OPEN
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)
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 volt-
age level.
12. BUZZER
POFF, RESET TIMING CHART
+5V
Oscillation frequency is 2.048kHz (2.0kHz~2.2kHz).
20.8V
+24V
<CPU PORT>
Signal to
be used
No. CPU PORT
29 P80
Function
/RESET
min.10ms
min.10ms
BUZZER BUZZER SIGNAL
/POFF
/EFTRES
13. UP-P16DP I/F
POWER ON
Instant service
interruption
MODE MODE
SRV' Other than
SRV'
POWER OFF
The ER-A520/530 is provided with I/F with CKDC on the option display
of UP-P16DP.
<CPU PORT>
Signal to
No. CPU PORT
Function
be used
SHEN#
SCK
26
7
INT1#
CLK3
CKDC interface shift enable signal
CKDC interface synchronizing shift
clock
6
5
8
RxD3
TxD3
P126
STH
HTS
CKDC interface shift input data
CKDC interface shift output data
CKDC reset signal
CKDCR
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
2. DESCRIPTION OF EACH DIAG PROGRAM
The test items are as follows:
1) DISPLAY BUZZER TEST
Code
100
101
102
104
105
106
107
110
111
116
120
121
122
130
160
400
500
501
510
Description
1
Key operation
1)
2)
Display buzzer test
Key code
100 3
CA/AT
2
3)
Printer test
Test procedure
4)
Keyboard test
Mode switch test
Printer sensor test
Clock test
OP display
S R V
D I S P B U Z Z E R
5)
0 1 2 3 4 5 6 7 8 9 A B C D E F
6)
7)
Rear display
4.5.6.7.8.9.0.
8)
Drawer 1 open & sensor test
Drawer 2 open & sensor test
LCD CG test
9)
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)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
Standard RAM test
OPTION RAM test
CPU internal RAM test
FLASH ROM test
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:
AD conversion port test
POLE DISPLAY test
RS232 ch1 test
A) Each position is correctly displayed.
B) The brightness of each number is uniform.
C) The buzzer sound is normal.
RS232 ch2 test
SCANNER test
4
End of testing
*Starting DIAG.
You can exit the test mode by pressing any key. The following is
printed.
Mode switch: SRV
key operation: Above code + “CA/AT” key
1 0 0
2) KEY CODE
1
Key operation
101 3
CA/AT
2
Test procedure
OP display
S R V
K E Y C O D E
KEYBOARD
KEY CODE
3
Check that:
KEYBOARD: 1: Normal type 0: Flat type
KEY code:
Every time a key is pressed, the hard code of that key
is displayed as a decimal number.
When a key is pressed twice or pressed in an incor-
rect manner, --- will be displayed.
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:
1 0 1
ER-A520U/ER-A530U DIAGNOSTIC PROGRAM
– 15 –
3) PRINTER TEST
5) MODE SWITCH TEST
1
Key operation
1
Key operation
105 3
102 3
CA/AT
CA/AT
2
Test procedure
2
Test procedure
OP display
R / J
S R V
P R I N T E R
OP display
S R V
M O D E S W
1 0 5
X
Enlargement
MODE: SRV_PGM2_PGM1_OFF_OP X/Z_REG_MGR_X1/Z1_X2/Z2__SRV
0
1
2
9
3
4
5
6
7
0
X
:
The above X must be read in the correct order. (If the contact is
open, 9 will be displayed.)
3
4
Check:
5 lines of 24 digits are printed.
The display during testing and the content of the completion print.
End of testing
At the receipt side, the logo is also printed and the receipt is issued.
Check that:
When the test ends normally
When an error occurs:
1 0 5
1 0 5
3
4
E – ~ –
The print is free from contamination, blur, and uneven density.
End of testing
6) PRINTER SENSOR TEST
The test will end automatically.
1
Key operation
106 3
CA/AT
Test procedure
4) KEYBOARD TEST
2
1
Key operation
Check the status of the paper end sensor and head up sensor.
_ _ _ _104 3
CA/AT
2
OP display
KEY check sum code
R / J
1 0 6
S R V
X
S E N S O R
Y
2
Test procedure
The keyboard is checked using the sum check code of the key
code.
3
Check the following.
If the sum check code is not entered, the check is made using the
sum check code of the default keyboard arrangement
X: 1 - Paper present at the receipt side
O - No paper at the receipt side
The sum check data for each model is entered to the front 4 digits
of the DIAG code, and that data is compared with the key data
added until the final key (CA/AT) is pressed.
Y: 1 - Paper present at the journal side
O - No paper at the journal side
Both data are the same, the test ends, printing the number given
below.
4
End of testing
You can exit the test mode by pressing any key and the printer
prints the following.
If both data are different, the printer prints the error message.
OP display
S R V
K E Y B O A R D
1 0 4
1 0 6
KEY CODE
3
4
Check:
A) The content of completion print
End of testing
When the test ends normally:
When an error occurs:
1 0 4
1 0 4
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.
ER-A520U/ER-A530U DIAGNOSTIC PROGRAM
– 16 –
7) CLOCK TEST
9) DRAWER 2 OPEN & SENSOR TEST
1
Key operation
107 3
1
Key operation
111 3
CA/AT
Test procedure
CA/AT
2
2
Test procedure
OP display
OP display
T I M
1 0 7
C H E C K
S R V
2
S R V
E R
D R A W E R
X
X : O = DRAWER OPENED
C = DRAWER CLOSED
Hour
Min.
Sec.
Blinks at an interval of 0.5 sec.
3
4
Check that:
A) The drawer 2 opens normally.
3
4
Check that:
B) The sensor correctly indicates the status of the drawer 2.
End of testing
“–“ blinks and the clock counts up.
End of testing
You can exit the test mode by pressing any key. The printer prints
the following.
When any key is pressed, the date and time are printed and the
test mode will be terminated.
1 1 1
X X X X X X X X X X X X
107
year
month
hour
10) LCD CG TEST
min.
1
Key operation
116 3
day
sec.
CA/AT
2
Test procedure
8) DRAWER 1 OPEN & SENSOR TEST
To check the display CG, 256 pieces of built-in CG's are grouped
into 16 blocks and each 16 characters is displayed on the dot dis-
play.
1
Key operation
110 3
CA/AT
At first, CG code of 00H ~ 0FH is displayed. By pressing any key,
each block is displayed in sequence.
2
Test procedure
OP display
OP display
1
S R V
D R A W E R
S R V
X Y
X
"O" indicates the CG display position.
X : O = DRAWER OPENED
C = DRAWER CLOSED
"XY" indicates the code at the head of each block
in hexadecimal number.
(Example: 10, A0)
3
4
Check that:
A) The drawer 1 opens normally.
3
4
Check that:
B) The sensor correctly indicates the status of the drawer 1.
End of testing
A) Displays are clear.
B) Free from blur, chip-off, unevenness.
End of testing
You can exit the test mode by pressing any key. The printer prints
the following.
You can exit the test mode by pressing any key. The printer prints
the following.
1 1 0
1 1 6
ER-A520U/ER-A530U DIAGNOSTIC PROGRAM
– 17 –
11) STANDARD RAM TEST
12) OPTION RAM TEST
1 Key operation
1 Key operation
120 3
CA/AT
121 3
CA/AT
2 The standard RAM is checked.
2 The standard RAM is checked.
The contents of memory must be the same before and after this test.
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.
RAM (100000H~1FFFFFH area) is tested in the following procedure:
a) Store data in the test areas
a) Store data in the test area.
b) Write “00H”
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”
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
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.
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,
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
S R V
R A M
1 2 0
OP display
S R V
C P U R A M
1 2 1
3 Check: A) The completion print.
3 Check: The completion print.
4 End of testing
4 End of testing
The program ends after printing as follows:
The test program ends after printing.
When the test ends normally:
When the test ends normally:
1 2 0
1 2 1
When the test end abnormally: Ex – ~ –
1 2 0
When the test ends abnormally: Ex – ~ –
1 2 1
*****
*****
x = 1: Data error
x = 1: Data error
x = 2: Address error
x = 2: Address error
When an error occurs, the printer outputs the error message and the
If an error occurs, the printer outputs the error message and the
address where the error has occurred in the area *****.
address where the error has occurred in the area *****.
ER-A520U/ER-A530U DIAGNOSTIC PROGRAM
– 18 –
13) CPU INTERNAL RAM TEST
15) AD CONVERSION PORT TEST
1
1
Key operation
Key operation
160 3
122 3
CA/AT
CA/AT
2
Test procedure
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.
The test program displays the voltage of each AD conversion port.
Display
a) Store data in the test area.
b) Write “00H”
OP display
=
=
=
S R V
S R V
S R V
T M
1 6 0
c) Read and compare “00H” and then write “55H”
d) Read and compare “55H” and then write “AAH”
e) Read and compare “AAH”
Repeat
OP display
OP display
V R F
1 6 0
f) Restore stored data
V P T E S T
1 6 0
If an error occurs at a step, the error is printed.
If any error does not occur, the following addresses are checked
in turns.
3
End of testing
Addresses to be checked:
You can exit the test mode by pressing any key. The printer prints
the following.
01000H, 01001H, 01002H, 01004H, 01008H
01010H, 01020H, 01040H, 01080H,
01100H, 01200H, 01400H, 01800H,
02000H
1 6 0
OP display
S R V
C P U R A M
1 2 2
16)POLE DISPLAY TEST
UP-P16DP is attached in DISPLAY CN.
1 Key operation
3
4
Check:
The completion print.
End of testing
400
3
CA/AT
2 Test procedure
Displayed in the following procedure A test pattern.
Progresses to the following pattern by pushing arbitrary KEY.
i ) The following test pattern is displayed.
The test program ends after printing.
When the test ends normally:
When the test ends abnormally: Ex – ~ –
*****
122
122
DOT DISPLAY
:
0 1 2 3 4 5 6 7 8 9 ; A a B b C
x = 1: Data error
7SEG DISPLAY : 0.1.2.3.4.5.6.7.8.9.-.
c c c c c c c c c c c
x = 2: Address error
ii) The test pattern of all beam all-points lights is displayed.
If an error occurs, the printer outputs the error message and the
address where the error has occurred in the area *****.
3 Check:
A) The display of each position is right.
14) FLASH ROM TEST
B) Be uniform in the luminosity of each display and there needs to
be no MURA in it.
1
Key operation
130 3
CA/AT
4 End of testing
2
Test procedure
You can exit the test mode by pressing any key. The printer prints
the following.
The test program checks that the checksum of the flash ROM
(F00000H ~ FFFFFH).
4 0 0
The lower two digits of the checksum should be 10H. (pending)
OP display
17) RS232 CH1 TEST
S R V
F L A S H R O M
1 3 0
Install the RS232 loopback connector.
3
4
Check: The completion print.
End of testing
1
Key operation
500 3
CA/AT
The test will automatically be terminated and the printer prints as
follows:
2
Test procedure
The test program checks the control signals.
When the test ends normally:
ROM
130
******** (Model name)
******** (Version)
130
OUTPUT
INPUT
/ER1
/RS1
OFF
ON
/DR1
OFF
OFF
ON
/CI1
OFF
OFF
ON
/CD1
OFF
ON
/CS1
OFF
ON
OFF
OFF
ON
When the test ends
abnormally:
E
– – ~ – –
ROM
******** (Model name)
OFF
ON
OFF
ON
OFF
ON
******** (Version)
ON
ON
ON
ER-A520U/ER-A530U DIAGNOSTIC PROGRAM
– 19 –
Data communication check
19)SCANNER TEST
A loopback test of 256-byte data between is performed.
DATA: $00 - $FF BAUD RATE:9600 BPS
The data read with ER-A6HS1 is displayed and it prints.
1 Key operation
OP display
510
3
CA/AT
2 3 2
S R V
R S
T E S T
5 0 0
2 Test procedure
It is tested to read it to ER-A6HS1 connected with RS-232 PORT of
ERA520, 530.
3
4
Check:
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.
The completion print.
End of testing
Completion print
Error print
RS TEST
RS TEST
OK
**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
06 SD RD error
OP display
A N N E R
S R V
S C
* * * * * * * * * * * * * * *
The read data is displayed on the left.
Receipt printing:
DATA error
The read data is put in the left and printing and paper sending are
carried out.
DATA error/framing error
3 Check: Check whether the read data is right.
18) RS232 CH2 TEST
4
End of testing
Install the RS232 loopback connector.
You can exit the test mode by pressing any key. The printer prints
the following.
1
Key operation
501 3
CA/AT
Test procedure
The test program checks the control signals.
OUTPUT INPUT
5 1 0
2
/ER2
/RS2
OFF
ON
/DR2
OFF
OFF
ON
/CI2
OFF
OFF
ON
/CD2
OFF
ON
/CS2
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
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
2 3 2
S R V
R S
T E S T
5 0 1
3
4
Check:
The completion print.
End of testing
Completion print
Error print
RS TEST
RS TEST
OK
**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
06 SD RD error
DATA 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.
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.
2. Set the IPL switch (S1) to ROM COPY position.
ROM COPY
ROM COPY
GND VCC
GND
VCC
S1
S1
S1
S1
IPL switch
IPL switch
9. Replace the top cabinet.
10. Perform the master reset.
3. Install the IPL ROM in the IC socket of the MAIN PWB.
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. Turn 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 –
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT
– 22 –
8
4
8
4
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT
– 23 –
3
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT
– 24 –
V S
R S A
R E F A
R E F B
R S B
G A
V S
R S A
R E F A
R E F B
R S B
G A
8
7
3
1 3
9
4
1 2
8
7
3
1 3
9
4
1 2
O U T / A
O U T A
O U T / B
O U T B
O U T / A
O U T A
O U T / B
O U T B
6
1
1 5
1 0
6
1
1 5
1 0
G B
G B
8
4
8
4
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT
– 25 –
3
2
1
V C C
1 0
V C C
1 0
1 1
1 0
1 1
1 0
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT
– 26 –
+
+
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT
– 27 –
1
3
2
4
1
4
3
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT
– 28 –
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 CORPORATION
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 t
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