Sharp ER A530 User Manual

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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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