Read Sharp ER-A280 / ER-A280N / ER-A280F (serv.man5) Service Manual online
ER-A280F/A280N (V)
SERVICE (SRV) MODE
3 – 1
CHAPTER 3. SERVICE (SRV) MODE
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.
[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
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 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.
should be programmed.
2. PROGRAM RESETTING (INITIALIZATION)
1) Power is off (power plug is pulled out)
2) Push the reset switch
3) Insert the power plug into the outlet with pushing the reset switch
4) Release the reset switch
This resetting resumes the initial program without clearing memory.
a
b
c
d
A
RECEIPT
A
a
b
c
d
RECEIPT
Reset switch
Note:
When power is on, the reset switch is operated.
Then there is possibility to break RAM data.
So, in Program reset, power plug is pulled out first.
So, in Program reset, power plug is pulled out first.
And it is also the same for master reset.
But in master reset, RAM will be clear.
And we think it is not problem to break RAM data by operating the
reset switch when power is on for master reset.
And we think it is not problem to break RAM data by operating the
reset switch when power is on for master reset.
Click on the first or last page to see other ER-A280 / ER-A280N / ER-A280F (serv.man5) service manuals if exist.