Sharp XE-A203 - Cash Register Thermal Printing Graphic Logo Creation Service Manual page 14

4) KEYBOARD TEST
1 Key operation
**** 1 0 4 RCPT/PO
(*) **** = Sum check code on each model (omissible)
2 Test procedure
The keyboard is checked with the sum check data of the key code
except for the paper feed key.
The sum check data of each model is inputted to the upper 4 digits
of the diag code, and the data is compared with the key data accu-
mulated until the final key (TL key) is pressed.
When the data are in accord with each other, the end print is made.
If not, an error print is made.
(*) The final key: "CA/AT" Key
(*) XE-A203U/A203A sum check code: 3417
3 Display
OP display: 1 0 4
POPUP display:
4 End of testing
When the
test ends normally:
When an error occurs:
5) MODE SWITCH TEST
1 Key operation
1 0 5 RCPT/PO
2 Test procedure
Turn the mode SW from "PGM" position to "X2/Z2" one by one
sequentially and return to "PGM" position again. Check that the
positions are changed in the proper sequence.
If the test is completed normally, the end print is made. If not, an
error print is made.
3 Display
OP display: 1 0 5
POPUP display:
MODE PGM VOID OFF OP X/Z REG MGR X1/Z1 X2/Z2
nondis-
1 2
*
play*1
(*) * = Mode SW position code
(*1) LED not displayed due to OFF
104
KEY SUM ERROR XXXX-YYYY
104
*
*
3 4 5 6
XE-A203U/XE-A203A TEST FUNCTION
4 End of testing
When the
test ends normally:
When an error occurs:
6) PRINTER SENSOR TEST
1 Key operation
1 0 6
2 Test procedure
Check the status of paper end sensor and head up sensor.
3 Display
OP display:
POPUP display:
(*) X = Paper end sensar 1: Paper present
(*) Y = Head up sensor
4 End of testing
You can exit the test mode by pressing any key and the printer prints
the following.
7) CLOCK DISPLAY TEST
1 Key operation
1 0 7
2 Test procedure
The clock is displayed.
3 Display
OP display:
POPUP display:
(*) hh = hour
4 Check that
A) Check "-" blinks at an interval of 500ms.
B) Check the clock counts up normally.
7
5 End of testing
When any key is pressed, the date and time are printed and the test
mode will terminated.
End print:
(*) yy = year
hh = hour
– 12 –
MODE KEY ERROR
RCPT/PO
X -
1 0 6 Y
X -
Y
1: Head down
106
RCPT/PO
h h - m m s s
h - m m s s
mm = min ss = sec
yymmdd-hhmmss
107
mm = month dd = day
mm = min ss = sec
105
105
0: Out of paper
0: Head up