2500_Users_Manual.pdf - 第203页

Preventi ve Mai nten ance ProM aster 25 00 User Manua l 5-49 During the test, the 2 500 displays : If an EEP ROM memory error is found, the test is stopped. The 2500 displays: Press any key, except RESET , to return to t…

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5-48 ProMaster 2500 User Manual

Key/Display Test

This test verifies that the keypad keys and the display dot matrixes are

operating correctly. To select the Key/Display test, press

from the

Diagnostic menu. The 2500 displays:

Testing the Keys

Press

and the 2500 displays:

Press the keys you want to check. The characters for these keys appear on

the display, in the first column of the second row. As you press

additional keys, the displayed characters wrap to the third and fourth

lines and then appear on the first line, overwriting the message.

Press

RESET

to return to the 2500’s Main menu. Press

STOP

to end the

test and return to the Diagnostics menu.

If the characters for the keys you pressed are not displayed, the keyboard

may be defective. Replace the keyboard and try the test again. Also, check

the cable to the controller board.

Testing the Display

To test the display, press

from the Diagnostics menu and then press

. If

the display is operating correctly, each dot on the display is visible. Each

display matrix is outlined by an unlit row of dots. Press

RESET

to return

to the 2500’s Main menu. Press

STOP

to end the test and return to the

Diagnostics menu.

EEPROM Test

The 2500’s EEPROM stores the file and system data. The EEPROM test,

which lasts approximately five minutes, runs a test pattern through the

memory to verify that every location in the file storage area is functioning

properly.

CAUTION: Do not turn off power while this test is in progress. Turning

the power off will erase some or all of the 2500’s system

parameters.

To enter the EEPROM test, press

from the Diagnostics menu and the

2500 displays:

Pressing

RESET

before the test begins returns you to the Main Menu.

Pressing any other key begins the EEPROM test.

Note: While the test is running, pressing

RESET

will NOT return you to the

Main Menu.

PRESS 1 FOR KEY TEST, 2 FOR DISPLAY TEST

PRESS KEYS TO TEST, STOP TO ABORT

EEPROM TEST - PRESS ANY KEY TO START

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ProMaster 2500 User Manual 5-49

During the test, the 2500 displays:

If an EEPROM memory error is found, the test is stopped. The 2500

displays:

Press any key, except

RESET

, to return to the Diagnostics menu.

(Pressing

RESET

returns you to the Main Menu.)

Replace the EEPROM if it fails this test.

Communications

Test

The Communications Diagnostic test checks the three communication

ports and runs a loop test. To select the Communications test, press

from the Diagnostics menu. The 2500 displays:

Loop Test

The loop test checks the 2500 mother board and is performed only at the

factory.

RS-232C Port Tests

These tests echo the character for the key pressed at the terminal

keyboard, through the RS-232C communication port and back to the

terminal display. With a straight through cable, connect the 2500 to a

terminal, or to a computer that can emulate a terminal, and set the baud

rates in the 2500 to match the terminal.

To test the Remote port, press

from the Communications Diagnostics

Menu. The 2500 displays:

To test the Programmer port, press

from the Communications

Diagnostics menu. The 2500 displays:

EEPROM TEST IN PROGRESS

PRESS ANY KEY TO ABORT

EEPROM TEST - PRESS ANY KEY TO START

EEPROM ERROR AT LOCATION XXX

* COMMUNICATIONS DIAGNOSTICS MENU *

1 - RS-232C LOOP TEST 4 - DIAG MENU

2 - REMOTE RS-232C PORT

3 - PROGRAMMER RS-232C PORT

REMOTE RS-232C TEST

PRESS ANY KEY TO ABORT

PROGRAMMER RS-232C TEST

PRESS ANY KEY TO ABORT

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5-50 ProMaster 2500 User Manual

Press a key on the terminal keyboard. If the port is operating properly,

the character you typed appears on the terminal display. If random

characters are displayed, the baud rates may not match, or there may be a

problem in the handler or terminal port. Press any key to end the test and

return to the Communications Diagnostic menu.

Programming

Electronics Self-test

The programming electronics assembly goes through a complete self-test

on powerup, or when you select self-test from a special menu in

TaskLink. The self-test command allows you to test portions of the

programming electronics (PE) to verify proper operation or to isolate a

problem.

The 2500 verifies internal voltages every time it is powered up and every

time a complete self-test is run. The voltage verification is performed by

software and is compared to a precision, laser-trimmed +10 volt

reference. Data I/O recommends that you cycle

and

run a complete self-

test cycle at least every three months so that the PE remains within its

specified operating range.

To ensure that your 2500 continues to meet product performance

specifications, Data I/O recommends a complete, preventive

maintenance check and performance evaluation every three months.

Powerup Self-test

During powerup, the PE performs self-test diagnostics, including a

performance verification of its internal power supplies and a test of the

microprocessor’s kernel components (EPROM, ID PAL, system RAM,

DUART, and decode circuits).

When the kernel tests are complete, the PE reads the system files on the

disk drive and loads them into its system RAM. Then it completes self-

test by checking its major boards and assemblies. The PE’s completion of

the self-test indicates only that the main components are functioning

enough for the PE to complete the self-test; it does not necessarily indicate

the absence of errors.

ESD Precautions

The circuit boards in the 2500 are susceptible to electrostatic discharge

(ESD), which can damage the circuitry in the programming electronics.

The easiest way to prevent damage from ESD is to make sure a common

static potential (ground) exists between the static-sensitive device, its

environment, and you. Use an antistatic strap to ground yourself to an

antistatic workstation.

WARNING:To avoid electric shock, the antistatic wrist strap must

contain a 1 M

Ω

(minimum) to 10 M

Ω

(maximum)

isolating resistor.

If you don’t have an antistatic work station available, you can wear an

antistatic wrist strap and connect it to the banana plug on the 2500.