ER-A280, ER-A280N, ER-A280F (serv.man5). ER-A280 Service Manual - Sharp ECR Service Manual (repair manual)

er-a280, er-a280n, er-a280f (serv.man5) service manual
Model
ER-A280 ER-A280N ER-A280F (serv.man5)
Pages
56
Size
5.62 MB
Type
PDF
Document
Service Manual
Brand
Device
ECR / ER-A280 Service Manual
File
er-a280-er-a280n-er-a280f-sm5.pdf
Date

Read Sharp ER-A280 / ER-A280N / ER-A280F (serv.man5) Service Manual online

CODE : 00Z
q
SERVICE MANUAL
CONTENTS
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.
ERA280FSME
ELECTRONIC
CASH REGISTER
ER-A280F
 MODEL
ER-A280N
      
(For “V” version)
CHAPTER 1. SPECIFICATIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1
CHAPTER 2. OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
CHAPTER 3. SERVICE (SRV) MODE . . . . . . . . . . . . . . . . . . . . . . 3 - 1
CHAPTER 4. HARDWARE DESCRIPTIONS . . . . . . . . . . . . . . . . . 4 - 1
CHAPTER 5. DIAGNOSTIC PROGRAM  . . . . . . . . . . . . . . . . . . . . 5 - 1
CHAPTER 6. DISASSEMBLY & ASSEMBLY. . . . . . . . . . . . . . . . . 6 - 1
CHAPTER 7. INSTALLATION OF OPTION . . . . . . . . . . . . . . . . . . 7 - 1
CHAPTER 8. CIRCUIT DIAGRAM & PWB LAYOUT . . . . . . . . . . . 8 - 1
<ER-A280F>
<ER-A280N>
ER-A280F/A280N (V)
■  LEAD-FREE SOLDER
The PWB’ s of this model employs lead-free solder. The “LF” marks indicated on the PWB’s and the Service Manual mean “Lead-Free” solder. The
alphabet following the LF mark shows the kind of lead-free solder. 
Example:
(1) NOTE FOR THE USE OF LEAD-FREE SOLDER THREAD
When repairing a lead-free solder PWB, use lead-free solder thread. Never use conventional lead solder thread, which may cause a breakdown or an accident. 
Since the melting point of lead-free solder thread is about 40°C higher than that of conventional lead solder thread, the use of the exclusive-use soldering iron is rec-
ommendable. 
(2) NOTE FOR SOLDERING WORK
Since the melting point of lead-free solder is about 220°C, which is about 40°C higher than that of conventional lead solder, and its soldering capacity is inferior to
conventional one, it is apt to keep the soldering iron in contact with the PWB for longer time. This may cause land separation or may exceed the heat-resistive tem-
perature of components. Use enough care to separate the soldering iron from the PWB when completion of soldering is confirmed. 
Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently.  
If different-kind solder remains on the soldering iron tip, it is melted together with lead-free solder. To avoid this, clean the soldering iron tip after com-
pletion of soldering work. 
If the soldering iron tip is discolored black during soldering work, clean
and file the tip with steel wool or a fine filer. 
5mm
Lead-Free
Solder composition 
code (Refer to the 
table at the right.)
<Solder composition code of lead-free solder> 
Solder composition
Sn-Ag-Cu
Sn-Ag-Bi
Sn-Ag-Bi-Cu
Sn-Zn-Bi
Sn-In-Ag-Bi
Sn-Cu-Ni
Sn-Ag-Sb
Bi-Sn-Ag-P
Bi-Sn-Ag
a
b
z
i
n
s
p
Solder composition code
a
CAUTIONS
THERE IS A RISK OF EXPLOSION IF THE BATTERY
IS REPLACED BY AN INCORRECT TYPE.
PROPERLY DISPOSE OF USED BATTERIES ACCORDING 
TO THE INSTRUCTIONS.
CAUTIONS
n
Risk of explosion if battery is replaced by an incorrect type.
Dispose of batteries according to the instructions.
n
Do not leave the unit with the battery discharged for more than one month. 
It will shorten the battery life. 
If the unit is left unused for a long period, be sure to charge the battery fully. 
Also note that the battery must be charged periodically (once a month) because it will discharge naturally. 
ER-A280F/A280N (V)
SPECIFICATIONS
1 – 1
CHAPTER 1. SPECIFICATIONS
1. RATING/APPEARANCE
1)
RATING
2)
APPEARANCE
 Front view (For ER-A280F)
 Front view (For ER-A280N)
 Rear view
 Printer
Power source
230~240V, 50Hz
220~230V, 50Hz/60Hz
Power
consumption
Stand-by
28W (When the official voltage is 220 to
230V, 50Hz/60Hz)
31W (When the official voltage is 230 to
240V, 50Hz)
Operating
35W (max.) (When the official voltage is
220 to 230V, 50Hz/60Hz)
32W (max.) (When the official voltage is
230 to 240V, 50Hz)
Operating
Temperature 0 °C~40 °C
Humidity
20%~90% (Non condensing)
Storage
Temperature -20 °C~60 °C
Humidity
20%~95% (Non condensing)
Physical dimensions
330 (W) x 363 (D) x 221 (H) mm (3B/7C)
420 (W) x 426 (D) x 229 (H) mm (4B/8C)
Weight
4.6 kg (3B/7C)
4.6 kg (4B/8C)
Receipt paper
Drawer lock
Drawer
Printer cover
Operator display
Keyboard
SD card slot
RS232 connector
Receipt paper
Drawer lock
Drawer
Printer cover
Operator display
Keyboard
SD card slot
There is a hole of the reset switch 
on the inside of the cover.
RS232 connector
Customer display
Paper roll 
location
Print roller arm
(hold position)
Print roller 
release lever
ER-A280F/A280N (V)
SPECIFICATIONS
1 – 2
2. KEYBOARD
1)
STANDARD KEYBOARD LAYOUT
 ER-A280F
 ER-A280N
2)
KEY TOP NAME
 ER-A280F
0
9
00
CL
Numeric keys
Decimal point key
Clear key
Multiplication key
GLU
RECEIPT
Receipt paper feed key
L3
L1
G.C.
RCPT
Enter key
ENTER
PLU level shift 1 through 3 keys
CR
#
Credit menu key
EX
#
Foreign currency exchange menu key
CH
#
Check menu key
FINAL
NBAL
Direct price lookup keys
RA
Received-on-account key
PO
Paid-out key
Void key
4
1
Department key
PLU
SUB
Price lookup/subdepartment
CANCEL
Cancel key
MODE
MODE key
Cursor (up/down arrow) keys
%
#
Percent menu key
AUTO
#
Automatic sequencing menu key
Discount key
Total (cash total) key, or No-sale key
 
TL/NS
CLK
#
Electronic journal view key
EJ
VIEW
PRICE 
SHIFT
VAT
SHIFT
1
24
Clerk code entry key
Price level shift key
Value added tax shift key
(VAT shift item or VAT shift transaction)
Guest lookup key
New balance key
Tentative finalization key
Guest check receipt key
Page of 56
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Download Sharp ER-A280 / ER-A280N / ER-A280F (serv.man5) Service Manual (Repair Manual)

Here you can read online and download Sharp ER-A280 / ER-A280N / ER-A280F (serv.man5) Service Manual in PDF. ER-A280 / ER-A280N / ER-A280F (serv.man5) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp ER-A280 / ER-A280N / ER-A280F (serv.man5) ECR. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.