Read Sharp ER-A490 (serv.man2) Service Manual online
SERVICE MANUAL
CODE: 00ZERA490VSME
ELECTRONIC
CASH REGISTER
CASH REGISTER
MODEL
ER-A490
SRV Key : LKGIM7113BHZZ
PRINTER : PR-58A: For Germany
PRINTER : PR-58A: For Germany
:
PR-58M: Except For Germany
(For "V" version)
CAUTION
EXTREME CAUTION MUST BE TAKEN WHEN SERVICING THIS MACHINE. EVEN
THOUGH THE MODE SWITCH IS IN THE OFF POSITION, VOLTAGE IS STILL SUPPLIED
TO THE ENTIRE MACHINE.
WHEN WORKING ON THIS MACHINE MAKE SURE THAT THE POWER CORD IS
REMOVED FROM THE WALL OUTLET.
EXTREME CAUTION MUST BE TAKEN WHEN SERVICING THIS MACHINE. EVEN
THOUGH THE MODE SWITCH IS IN THE OFF POSITION, VOLTAGE IS STILL SUPPLIED
TO THE ENTIRE MACHINE.
WHEN WORKING ON THIS MACHINE MAKE SURE THAT THE POWER CORD IS
REMOVED FROM THE WALL OUTLET.
CHAPTER 1. SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CHAPTER 2. OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CHAPTER 3. SRV. RESET AND MASTER RESET . . . . . . . . . . . . . . . . . . . . . . 9
CHAPTER 4. HARDWARE DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CHAPTER 5. TEST FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
CHAPTER 6. DOWN LOAD FUNCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
CHAPTER 7. CIRCUIT DIAGRAM & PWB LAYOUT . . . . . . . . . . . . . . . . . . . . 41
PARTS GUIDE
CONTENTS
SHARP CORPORATION
Parts marked with "
!
" is important for maintaining the safety of the set. Be sure to replace these parts with specified ones for
maintaining the safety and performance of the set.
CHAPTER 1. SPECIFICATIONS
1. Appearance/Rating
1) Appearance
ER-A490
Fig. 1-1
2) Rating
Power source
AC local voltage (
±
10%) 60Hz
Power consumption
Standby:
7 W
Maximum: 45 W with options installed.
Operating temperature
0°C~40°C (32°F~104°F)
Operating humidity
10%~90% (RH)
Physical dimensions,
including the drawer
including the drawer
421(W)
✕
448(D)
✕
302(H)mm
Weight
13.4 kg
2. Keyboard
1) Standard keyboard layout
Fig. 2-1
Customer display
(Pop-up type)
(Pop-up type)
Operator display
Mode switch
Infrared sensor
Keyboard
Drawer
Ribbon cover
Receipt paper
Printer cover
Journal window
Drawer lock
* To lock or unlock the drawer,
use the drawer lock key.
* To lock or unlock the drawer,
use the drawer lock key.
Power switch
Velidation opening
* To lock or unlock the printer cover,
use the printer cover lock key.
use the printer cover lock key.
Printer cover lock
6
7
8
8
16
24
1
2
3
7
15
23
6
14
22
5
13
21
4
12
20
3
11
19
2
10
18
1
9
17
RCPT
CASH
#
VAT
GC
COPY
NS
AUTO
CL
0
00
000
1
2
3
4
5
6
7
8
9
RF
PO
%1
%2
RA
1
2
GLU
NBAL
EX1
ST
L2
L1
CR2
CH
TL
32
31
30
29
28
27
26
25
40
39
38
37
36
35
34
33
48
47
46
45
44
43
42
41
56
55
54
53
52
51
50
49
64
63
62
61
60
59
58
57
RECEIPT
JOURNAL
9
10
4
5
CR1
L3
NC
PLU/
SUB
AMT
#
1
2) Key top name
1
Standard key top
KEY TOP
DESCRIPTION
0 to 9, 00
Numeric keys
000
000 key
↑
RECEIPT
Receipt paper feed key
↑
JOURNAL
Journal paper feed key
•
Deceimal point key
⊗
Multiplication key
CL
Clear key
DEPT. 1
∼
10
Department 1
∼
10 keys
PLU 1
∼
64
Direct PLU 1 to 64 keys
PLU/SUB
PLU/SUB department key
GC COPY
Guest check copy key
VAT
Value added tax key
#
Non-add code entry key
CASH#
Cashier code entry key
RCPT
Receipt print key
$
1
Discount 1 key
$
2
Discount 2 key
AUTO
Automatic sequencing key
%1
Percent 1 key
%2
Percent 2 key
EX1
Foreign currency exchange 1 key
NS
No-sale key
RA
Received on account key
PO
Paid out key
RF
Refund key
"
Void key
CR1
Credit 1 key
CR2
Credit 2 key
CH
Cheque key
AMT
Amount key
ST
Subtotal key
TL
Total (cash total) key
L1
PLU’s level shift 1 key
L2
PLU’s level shift 2 key
L3
PLU’s level shift 3 key
NC
New guest check key
GLU
Guest look up key
NBAL
New balnce key
2
Option key top
KEY TOP
DESCRIPTION
DEPT. 11
∼
50
Department 11
∼
50 keys
PLU 65
∼
118
Direct PLU 1 to 118 keys
% 3
Percent 3 key
% 4
Percent 4 key
$
3
Discount 3 key
$
4
Discount 4 key
AUTO 2
∼
10
Automatic sequencing 2
∼
10 key
RA 2
Received on account 2 key
PO 2
Paid out 2 key
CR3
∼
8
Credit 3
∼
8 key
CH2
∼
4
Cheque 2
∼
4 key
CA2
Cash total 2 key
EX2
∼
9
Foreign currency exchange 2
∼
9 key
DIFFER ST
Difference subtotal key
1/2
1/2 key
SLIP
Slip print key
PINT
Pint key
FINAL
Tentative finalize key
RCPT BILL
Bill printing on receipt key
BT
Bill totalizing/Bill transfer key
B.S.
Bill separation key
CASH TIP
Cash tip key
NON CASH TIP
Non cash tip key
TIP PAID
Tip paid key
VP
Validatio print key
2
3. Mode switch
Fig. 3-1
*
The key can be removed in the REG or OFF position.
*
In the SRV’ mode, key inputs are prohibited and no display is
made.
made.
*
With the key in the off position power is still supplied to the main
PWB.
PWB.
[Functions]
•
Function for each key position
•
SRV’:
System reset
•
SRV:
Service mode (Service programming)
•
PGM2:
Allows programming of an item that is not changed
frequently, in addition to the PGM1 mode program-
ming.
frequently, in addition to the PGM1 mode program-
ming.
•
PGM1:
Allows programming of items frequently changed
(e.g. department, PLU pricing, and discount rate set-
ting).
(e.g. department, PLU pricing, and discount rate set-
ting).
•
OP/XZ:
Allows X or Z operation by servers or cashiers.
•
REG:
Allows registrations.
•
MGR:
Allows the operations, by authorized person such as
a manager (e.g. correction after transaction finished
or cancellation of entry limits), which are not permit-
ted to ordinary cashiers.
a manager (e.g. correction after transaction finished
or cancellation of entry limits), which are not permit-
ted to ordinary cashiers.
•
X1/Z1:
Allows reading and resetting of a day’s sales total.
•
X2/Z2:
Allows reading or resetting sales totals in a specified
period.
period.
•
&
:
Switches off the display to prevent keyboard entries.
(The setting does not turn off the AC
power.)
power.)
4. Display
1) Layout
1
Operator display
Fig. 4-1
Dot display
7 segment display
No. of positions
12
10
Color of display
Green
Green
Character size
6.6 (H)
✕
4.6 (W) mm
10.0 (H)
✕
4.3 (W) mm
2
Customer display
Fig. 4-2
No. of positions
7
Color of display
Green
Character size
10 (H)
✕
4.5 (W) mm
Lamps
Display
contents
Description
L2
The lamp lights up when PLU level is 2.
L3
The lamp lights up when PLU level is 3.
CHR.
The lamp lights up when character key sheet mode in
text setting
text setting
SML
The lamp lights up when small characters are being
inputted in text setting
inputted in text setting
DC
The lamp lights up when double width characters are
being inputted in text setting.
being inputted in text setting.
ONL
The lamp lights up when the machine is connected to
the online transmission line; and it goes off when the
machine is disconnected from the line. The lamp
blinks during data transmission.
the online transmission line; and it goes off when the
machine is disconnected from the line. The lamp
blinks during data transmission.
STOCK
The lamp lights up when stock is empty state.
RCPT OFF
The lamp lights up when receipt is OFF state.
ST
The lamp lights up when a subtotal is displayed.
→
The lamp lights up when change amount is displayed
after tendering.
after tendering.
TL
The lamp lights up when a transaction is finalized with
CASH, CHECK, CREDIT, or CHARGE key, however,
the lamp does not light up when a transaction is
finalized with an amount tendered entry.
CASH, CHECK, CREDIT, or CHARGE key, however,
the lamp does not light up when a transaction is
finalized with an amount tendered entry.
"
/RF
The lamp lights up when the void or refund key is
pressed.
pressed.
VAT SHIFT
The lamp lights up when the vat shift key is pressed.
GC COPY
The lamp lights up when the guest check copy mode.
CCD
The lamp lights up when the CCD registration.
5. Printer (PR-58A: For Germany
PR-58M: Except for Germany)
PR-58M: Except for Germany)
1) Printer
Item
Description
No. of station
2: Receipt and Journal
Validation
No
Printing
system
system
Line thermal
No. of dot
Receipt:
360 dots
Journal:
360 dots
Dot pitch
Horizontal: 0.125 mm
Vertical:
Vertical:
0.125 mm
Font
10 dots (W)
×
24 dots (H)
Printing
capacity
capacity
Receipt:
Max. 30 characters
Journal:
Max. 30 characters
SRV
MA
SM.
OP
REG
PGM1
PGM2
MGR
OP X/Z
(SRV)
(SRV')
X2/Z2
X1/Z1
L2
L3
CHR. SML
ONL
STOCK RCPT
OFF
ST
TL
CCD
D C
/RF VAT
SHIFT
GC
COPY
4
1
2
3
5
6
7
ST
TL
/RF
3
