Sharp XEA403 Wartungshandbuch PDF herunterladen (Seite 12)

PC-UM10M

XE-A403 DIAGNOSTIC PROGRAM

– 10 –

CHAPTER 5. DIAGNOSTIC PROGRAM

1. TEST ITEMS

The test items are as follows:

Starting DIAG.

DESCRIPTION OF EACH DIAG PROGRAM

1) DISPLAY BUZZER TEST

Key operation

100

Test procedure

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.

Check that:

A) Each position is correctly displayed.

B) The brightness of each number is uniform.

C) The buzzer sound is normal.

End of testing

You can exit the test mode by pressing any key. The following is

printed.

100

2) KEY CODE

Key operation

101

Test procedure

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 incor-

rect manner, --- will be displayed.

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:

101

Code Description

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) 500 RS232C test

Mode switch: PGM

Key operation: Above code + “PO” key

RCPT/PO

DISP

BUZZER

PGM

0123456789ABCDEF

OP display

Rear display

4.5.6.7.8.9.0.

RCPT/PO

KEY

CODE

PGM

OP display

KEY CODE

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 24 25

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