Chapter 5. Diagnostic Program Test Items; Chapter 5. Diagnostic Program 1] Test Items; Description Of Each Diag Pro- Gram - Sharp XE-A40S Service Manual

CHAPTER 5.
XE-A40S
DIAGNOSTIC PROGRAM
[1] TEST ITEMS
The test items are as follows:
Code
1) 100 Display buzzer test
2) 101 Key code
3) 102 Printer test
4) 104 Keyboard test
5) 105 Mode switch test
6) 106 Printer sensor test
7) 107 Clock display test
8) 110 Drawer 1 open & sensor test
9) 120 External RAM test
10) 121 CPU internal RAM test
11) 130 FLASH ROM test
12) 160 AD conversion port test
13) 520 USB TEST
* Starting DIAG
Mode switch: PGM
Key operation: Above code + "RCPT/PO" key
[2] DESCRIPTION OF EACH DIAG PRO-
GRAM
1. DISPLAY BUZZER TEST
1.1. Key operation
→
100 RCPT/PO
1.2. Test procedure
OP display
D I S P
0 1 2 3 4 5 6 7 8 9 A B C D E F
Rear display
The decimal point on the LED and the cursor on the LCD will shift from
the lower digit to the upper digit in steps of 1 digit (every 200 msec)
After that, all segments will turn on (about 1 sec).
These two modes are repeated.
At the same time, the buzzer sounds continuously.
1.3. Check that:
• Each position is correctly displayed.
• The brightness of each number is uniform.
• The buzzer sound is normal.
1.4. End of testing
You can exit the test mode by pressing any key. The following is
printed.
1 0 0
Description
P G M
B U Z Z E R
4.5.6.7.8.9.0.
Service Manual
2. KEY CODE
2.1. Key operation
→
101 RCPT/PO
2.2. Test procedure
OP display
K E Y
2.3. Check that:
KEY code: Every time a key is pressed, the hard code of that key
is displayed as a decimal number.
When a key is pressed twice or pressed in an incorrect
manner, --- will be displayed.
2.4. End of testing
You can exit the test mode by turning the mode switch to a position
other than the PGM mode. The printer prints as follows:
3. PRINTER TEST
3.1. Key operation
→
102 RCPT/PO
3.2. Test procedure
OP display
R / J
5 lines of 24 digits are printed.
At the receipt side, the logo is also printed and the receipt is issued.
3.3. Check that:
The print is free from contamination, blur, and uneven density.
3.4. End of testing
The test will end automatically.
5 – 1
XE-A40S
P G M
C O D E
KEY CODE
1 0 1
P G M
P R I N T E R
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