2500_Users_Manual.pdf - 第207页

Preventi ve Mai nten ance ProM aster 25 00 User Manua l 5-53 4. Check the +15 reference by reading pin 24 (+ 15V) on the connector block (see Figure 5-14). The +15V s ignal should read between the mini mum and maximum va…

Preventive Maintenance

5-52 ProMaster 2500 User Manual

2. Check the 8 MHz programming electronics clock frequency by

placing the ground probe of your scope (or frequency counter) on

pin 1 (ground) and the input probe on pin 28 (see Figure 5-22).

The clock frequency should read between the minimum and

maximum values shown below:

3. Check the +10V precision reference by reading pin 78 (+10V) using

your digital multimeter (see Figure 5-14). The +10V signal should

read between the minimum and maximum values shown below:

Minimum Nominal Maximum

7.999 MHz 8.000 MHz 8.001 MHz

Minimum Nominal Maximum

+9.090V 10.000V 10.010V

Figure 5-21

Position of the 78-pin Connector on the Mass Storage Module

2142-1

WAVEFORM BOARD

78-PIN CONNECTOR

MASS STORAGE

MODULE

Preventive Maintenance

ProMaster 2500 User Manual 5-53

4. Check the +15 reference by reading pin 24 (+15V) on the connector

block (see Figure 5-14). The +15V signal should read between the

minimum and maximum values shown below:

This completes the performance verification for the programming

electronics assembly.

If any of the measurements described above are outside the specified

ranges, contact Data I/O Customer Support as listed in the Preface.

Running the Self-test

You cannot access the self-test command from TaskLink’s operator mode.

To perform a self-test you must be in TaskLink’s administrator mode. To

start this self-test, perform the following steps:

1. From the DOS prompt, start TaskLink in administrator mode by

entering

tl a

on your PC keyboard at the DOS prompt. If you are already running

TaskLink, exit TaskLink and restart it in administrator mode.

2. Select

Programmer Interface

from the

Utilities

menu.

3. Check the programming module to verify that no device is installed.

Figure 5-22

Test Points on the MSM 78-pin

Connector

Minimum Nominal Maximum

+14.25V +15.00V +15.75V

178

3940

PIN 28 (8MHz)

PIN 24 (+15V)

PIN 1 (Ground)PIN 78 (+10V)

PIN 72 (Plugged)

2143-1

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5-54 ProMaster 2500 User Manual

4. Press

. If you are prompted to select a new terminal type, press

↵

accept the default.

5. Select

(More Commands) and

(Self-test) to get to the Self-test

screen.

6. Select the One Pass mode to perform all the displayed tests once.

7. Move the cursor to the Test Mode field and press

PACE

. You may

stop the test by pressing

TRL

. There may be a delay before the

system responds to the C

TRL

-Z if you are testing system RAM.

CAUTION: Executing the System RAM test or the User RAM test erases

all data in RAM.

8. To test all hardware, move the cursor to the

Perform All Tests

prompt and press

↵

. To test a particular item, move the cursor to the

desired test and press

↵

One of the following four characters will appear next to each test to

indicate the status of that test:

? Untested

Pass

Fail

_ Not Installed

When testing begins, a question mark (

) appears next to the untested

areas. As each test completes, either

PASS

FAIL

appears next to the

test name to show the results of that test. The “

” may be displayed on

some tests if the programming electronics has failed an earlier test. In this

case the “

” means that this item was not tested and will not run until the

earlier failure has been corrected.

Note: When you abort a test, a status of

????

is displayed, and if you try to run

TaskLink, the message

Programming hardware has not passed

self test

is displayed.

A hyphen (–) indicates that an item is not installed on your ProMaster

2500 system.

While a test is being performed, a rotating action symbol and a status

message are displayed in the upper, left corner of the TaskLink screen.

Tests are performed in the following order:

Calibration of the supplies