Chapter 5. Diagnostic - Sharp XE-A1BT Service Manual

CHAPTER 5. DIAGNOSTICS
1. XE-A137/XE-A147
1) Diagnostic menu
DIAG menu
1 Mode switch test
2 Key test
3 Display test
4 Drawer test
5 Printer test
6 Printer paper sensor test To check a printer paper sensor
7 AD conversion level test AD conversion check
8 CLOCK test
Destination display /
9
ROM version
10 SD card test
11 RS232C (XE-A147 only) To execute the loopback test
12 ROM (Japan only)
13 RAM
2) Entering procedure
It is possible to enter the DIAG mode with following procedure;
1. To set the mode switch to Z/PGM position
2. To input the job code in accordance with below list
3. To push the PO key
4. Start the Diagnostic mode
DIAG menu
Mode switch test
Key test
Display test
Drawer test
Printer test
Printer Paper sensor test
AD conversion level test
CLOCK test
Destination display / ROM
version
SD card test
RS232C (XE-A147 only)
ROM check (Japan only)
RAM check
DESCRIPTION
To check the mode key function
Keyboard check
To check a display
To check a drawer opening
Printer test
To check the clock on CPU
To check the Destination setting and
ROM version
To check the SD-card write protection
To check the ROM for Japanese
characters
To execute the RAM read write test
Mode key
Key code
position
Z/PGM '1' + PO key
'2' + PO key
Z/PGM
'3' + PO key
Z/PGM
'4' + PO key
Z/PGM
'5' + PO key
Z/PGM
'6' + PO key
Z/PGM
'7' + PO key
Z/PGM
'8' + PO key
Z/PGM
'9' + PO key
Z/PGM
'10' + PO key
Z/PGM
'11' + PO key
Z/PGM
'12' + PO key
Z/PGM
'13' + PO key
Z/PGM
3) Description
3-1) MODE KEY SWITCH
a. Test Procedure
Change over the mode switch as follows. If the mode switch data
in the proper sequence is not read with the above operation, an
error is printed.
To cancel this test mode, set the mode switch to any a position
other than [Z/PGM] to [Z/PGM]. In this case, the completion print is
performed.
During the test, the display indicates hard codes which correspond
to the switch position.
The mode switch is set to the "OFF position", it will no-display.
<Note>
In the test, the mode key should be fixed over 1second in each
position.
b. Mode switch operation
MODE: [Z/PGM] → [X/FLASH] → [REG] → [OFF] → [VOID]
c. Display
[Z/PGM]
[X/FLASH]
[REG]
[OFF]
[VOID]
5-1