Fast ROM Checksum Test

Video Ram Test

Choose FASTGROM CHECKSUM 7Esrfrom the SYSTEM TESTMENU\o test the Graphics chips on the PCB. This test performs a complete test of the Graphics ROM's. While the test is in progress the following message is displayed:

FAST SftOM CHECKSUM TEST

FAST GROM CHECKSUM SCREEN

When the test is completed the GROM Test Screen is displayed.

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If all checksums are shown in white, the test passed and your game is in good working order.

If any checksums are bad, they will be displayed in red text on this screen. This means that the GROM is defective and needs to be replaced. Call your distributor or the Incredible Technologies, Inc. Service Department for further help.

To exit this test, press the START button.

This test performs a complete test of the Graphics video RAM. The video RAM is tested in two pages. The following message will be displayed as each page is tested.

When the test is completed the results wil displayed as follows.

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VIDEO RAM TEST SCREEN

If the game passes this test, zeros will be displayed in white along with a VIDEO RAM TEST PASSED message. If the test fails, a non-zero status and VIDEO RAM TEST FAILED message will be displayed in red. Call your distributor or the Incredible Technologies, Inc. Service Department for further help.

To exit this test, press the START button.

Palette RAM Test

PALETTE RAM TEST SCREEN

Board Tests

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