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3. SERVICE DIAGNOSTICS
3-1. SERVICE DIAGNOSTICS GETTING STARTED
GETTING STARTED:
Execute "SRV.BAT" by entering the command with the PS2 keyboard
as follows:
A:\> SRV b
"A:\>" is the DOS prompt. (Used by the FD)
*Do not load any device drivers when using this program.
*To operate other applications after performing this program, it is rec-
ommended to re-boot the machine.
3-2. SELECTION MENU
The diagnostics menu is started and the following menu is displayed.
The highlighted cursor is moved by the cursor keys (UP 2 and
DOWN 4 ) of the PS2 keyboard. Move the cursor to the desired item,
and press the Enter key to execute the selected diagnostics program.
When the selected diagnostics program is completed, the display
returns to the menu screen by pressing the ESC key. Select "Diagnos-
tics End" and press the Enter key to terminate the diagnostics.
SHARP PC-POS System Diagnostic Series
Diagnostics for Service
RAM Diagnostics
ROM Diagnostics
Real time clock & CMOS RAM Diagnostics
Key Pad Diagnostics
Touch Panel Diagnostics
Clerk Key Diagnostics
Printer Diagnostics
Serial I/O Diagnostics
LCD (Liquid Crystal Display) Diagnostics
MCR (Magnetic Card Reader) Diagnostics
System Switch Diagnostics
Drawer Diagnostics
Option Display Diagnostics
IDE I/F & Controller Diagnostics
FDD Diagnostics
FAN&LCD ON/OFF Diagnostics
Power Hold Diagnostics
Diagnostics End
IV
Version 1.00A
UP-5900VS DIAGNOSTICS SPECIFICATIONS
3-3. RAM DIAGNOSTICS
This program is used to test the standard memory and the extension
memory.
1) D-RAM CHECK
1 Checking content
All memory areas are checked in blocks of 512KB. The checking
procedures are as follows:
i.
Test data 5555H is written to all the test areas.
ii. Test data and read data are compared by each word, If it is
O.K., test data AAAAH is written to the test area.
iii. Test data and read data are compared by each word, If it is
O.K., test data 5555H is written to the test area.
iv. Test data 0000H is written to all the test areas.
v. Test data and read data are compared by each word, If it is
O.K., test data FFFFH is written to the test area.
vi. Test data and read data are compared by each word, If it is
O.K., test data 0000H is written to the test area.
When an error occurs during the test, the error address and data are
displayed and the test is stopped.
For the extended memory test, the value is set in the setup of the
read test and is made to the area in increments of 512KB.
2 Display
D-RAM Check
Memory size : xxxxKB
Error Address xxxxxxH
The error address and the error data are displayed only when an
error occurs. (When no errors occur, they are not displayed.)
3 Terminating method
After completion of the test, press the Esc key to terminate and
return to the service diagnostics menu.
4 – 2
PASS !!(or ERROR !!)
Write Data xxxxH
Read Data xxxxH
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