SHARP ERA-220 ELECTRONIC CASH REGISTER - HOW TO ENTER SERVICE MODE - ERROR CODES - RESET - SELF DIAGNOSTIC FUNCTION - POWER SUPPLY SCHEMATIC
Before
turning the mode switch from the (SRV’) to (SRV), make sure the AC power cord
is connected to the wall outlet; otherwise, the data on memory might be
destroyed.
SRV.
Reset (Program Loop Reset)
Used
to return the machine back to its operational state after a lock-up has
occurred.- Unplug the AC cord from the wall outlet.
- Set the mode switch to (SRV’) position.
- Plugin the AC cord to the wall outlet.
- Turn to (SRV) position from (SRV’) position.
Master
reset (All memory clear)
Used
to clear all memory contents and return machine back to its initial settings.
return keyboard back to default. for default keyboard layout.
- Unplug the AC cord from the wall outlet.
- Set the MODE switch to the (SRV’) position.
- Plugin the AC cord to the wall outlet.
- While holding down JOURNAL FEED key, turn to (SRV) position from (SRV’) position.
To
start the diagnostic program, you must enter the following command.
3-digit
test item number key in the SRV mode
The
RAM must be operating properly to go into this mode. This is necessary because
the control jumps to the program area in the SRV mode. A master reset must be
performed before operating the ECR for the first time. After any option is
installed, a program reset is required. When the master reset or program reset
is performed, be sure to check the printout on the journal paper.
Master
reset : Turn power on in the SRV’ mode and change it to the SRV mode with the
PAPER FEED key pressed.
print
: MASTER RESET ***
Program
reset : Turn power on in the SRV’ mode and change it to the SRV mode.
print : PRG. RESET ***
With the SRV mode and the
following test code entry, the test start
Cautions to be taken when removing the upper cabinet.
When removing the
upper cabinet, first remove the printer cover and then remove the upper cabinet
from the let side, as shown.
Cautions to be taken when installing the pop-up display
connector cable.
Exercise care not to have the wrong direction of the pop-up
display connector cable when connecting the cable to the Key I/F connector CN14.
When connecting the cable, make sure:
The cable is not kinked.
The cable contact surface points upward against the PWB when
inserting the cable.
MAIN POWER SUPPLY SCHEMATIC
CLICK ON PICTURES TO ZOOM
ERROR CODES
