ER-A280, ER-A280N, ER-A280F (serv.man4). ER-A280 Programming Manual — Sharp ECR Service Manual (repair manual)

Model
ER-A280 ER-A280N ER-A280F (serv.man4)
Pages
49
Size
1.2 MB
Type
PDF
Document
Service Manual
Brand
Device
ECR / ER-A280 Programming Manual
File
er-a280-er-a280n-er-a280f-sm4.pdf
Date

View Sharp ER-A280 / ER-A280N / ER-A280F (serv.man4) Service Manual online

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.
PROGRAMMING MANUAL
CODE : 00Z
LEAD-FREE SOLDER MODEL
ERA280/PME
ELECTRONIC
CASH REGISTER
ER-A280F
 MODEL
ER-A280N
      
(For “V” version)
<ER-A280F>
<ER-A280N>
LEAD-FREE SOLDER
CHAPTER 1. MASTER RESET AND PROGRAM RESET  . . . . . . 1 - 1
CHAPTER 2. SRV MODE PROGRAMMING . . . . . . . . . . . . . . . . . 2 - 1
CHAPTER 3. PGM MODE PROGRAMMING (“SETTING”) . . . . . . 3 - 1
CHAPTER 4. PGM MODE PROGRAMMING (“DATA CLEAR”)  . . 4 - 1
ER-A280F/280N (V)   LEAD-FREE SOLDER
 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
ER-A280F/280N (V)   MAJOR KEYS USED IN THE SRV MODE
MAJOR KEYS USED IN THE SRV MODE
The following major keys are used in the SRV mode.
PROGRAMMING KEYBOAD LAYOUT
<
ER-A280N
>
Programming layout key cover for normal key
Part Code: PCOVB2344BHSA
Note: Free Key layout is available except Receipt paper feed key.
<
ER-A280F
>
Note: Free Key layout is available except Receipt paper feed key.
WHEN THE POWER IS SUPPLIED INITIALLY
Since the master reset has been executed before shipping from the
factory, when the power is supplied initially, the screen enters the ser-
vice mode.
FUNCTION
KEY
DESCRIPTION
CURSOR UP
2
Move cursor to up (1 character)
CURSOR DOWN
4
Move cursor to down (1 character)
CURSOR RIGHT
3
Move cursor to right (1 character)
CURSOR LEFT
1
Move cursor to left (1 character)
PAGE UP
PAGE UP
Move cursor to up (1 page)
PAGE DOWN
PAGE DOWN
Move cursor to down (1 page)
BACK SPACE
BS
Back space
DELETE
DEL
Delete
CLEAR
CL
Clear numeric entry or error message
CANCEL
CANCEL
Operation cancel & back to previous menu
ENTER
ENTER
Data entry
ALL ENTER
TL
All entry terminate
HOME
HOME
Home menu display
COPY
COPY
Copy preset data.
ER-A280F/280N (V)
MASTER RESET AND PROGRAM RESET
1 – 1
CHAPTER 1. MASTER RESET AND PROGRAM RESET
1.  MASTER RESET (ALL MEMORY CLEAR)
In order to operate the cash register properly, you must execute master
resetting before operating for the first time. Follow this procedure.
[How to enter SRV mode]
There are tow possible methods to enter the SRV mode.
• Method1
Operator  can enter the SRV-mode by program reset operation.
Please refer to “Program resetting” about program reset operation.
• Method2
Enter the SRV mode secret code when the MODE menu is displayed.
[MODE] 
3 xxxxxxxx (SRV mode secret code) 3 [ENTER]
[How to exit SRV mode]
If [CANCEL] key is pressed while the top menu of SRV mode is dis-
played, it changes to the REG mode.
[MRS1 key & MRS2 key]
Position of MRS1 & MRS2 key is as follows.
MRS1 key : RECEIPT key
MRS2 key : The key located right side of RECEIPT key (A key)
[Secret key operation]
This operation is used as password of MRS operation.
Following key sequence have to enter after operate reset switch.
If you operate wrong sequence then program reset is performed.
• a
3b3c3d
[Key board layout]
ER-A280N
ER-A280F
[Reset switch]
[MASTER RESET PROCEDURE]
Master resetting 1 and 2 can be accomplished by using the following
procedures.
There are two possible methods to perform a master reset.
• MRS-1
Procedure :
Clears the entire memory and resumes initial values.
1) Power is on (Insert the plug into the outlet)
2) Push the reset switch
3) Depress the RECEIPT key with pushing the reset switch
4) Release the reset switch
5) Operate by following key sequence
a
3b3c3d
• MRS-2
Clears the entire memory and resumes initial values. (Master resetting
2 enables the layout of fixed keys in addition to master resetting 1.)
Procedure :
1) Power is on (Insert the plug into the outlet)
2) Push the reset switch
3) Depress the RECEIPT and “A” key with pushing the reset switch
4) Release the reset switch
5) Operate by following key sequence (Secret key operation)
a
3b3c3d
Program the 0 to 9 keys, 00 key, decimal point key, X key, SBTL key,
MODE key, cursor keys, HOME key, and CANCEL key, CL key and
ENTER key and TL key in this sequence.
(This means that the key first pressed is programmed as the 0 key, the
key pressed second as 1 key ---- and the last key pressed as the TL
key.)
To inhibit a particular key, press the 0 key at the point when that key
should be programmed.
a
b
c
d
A
RECEIPT
A
a
b
c
d
RECEIPT
Reset switch
Page of 49
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Here you can view online or download Sharp ER-A280 / ER-A280N / ER-A280F (serv.man4) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp ER-A280 / ER-A280N / ER-A280F (serv.man4) ECR. Information contained in Sharp ER-A280 / ER-A280N / ER-A280F (serv.man4) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).