1571/128D LOGIC DIAGNOSTIC
VERSION 1.2.1
DESIGNED TO TEST : 1571 SINGLE OR C128 INTERNAL DISK DRIVE
REQUIRED EQUIPMENT: C128 OR C128D COMPUTER
1571 SINGLE DISK DRIVE (C128 ONLY)
40 COLUMN MONITOR OR TV SET
VERSION 1.2 DIAGNOSTIC DISKETTE
The Logic Diagnostic is designed to test the Main Control Chips on
the System Under Test utilizing a Flash Code on the Activity LED.
LOGIC DIAGNOSTIC OPTION MENU
* Press (0) - Select Device Number >> [8] or [9]
* Press RETURN - Start Diagnostic Test
* Press SPACE - Load Diagnostic Menu
LOGIC DIAGNOSTIC OPTION ONE - SET DEVICE NUMBER UNDER TEST
This option allows the Logic Diagnostic to be run on a System
set to Device Number [8] or [9].
LOGIC DIAGNOSTIC OPTION TWO - START DIAGNOSTIC TEST
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+
ROM FAILURES WILL OCCUR IF OUT-DATED ROMS ARE INSTALLED
VALID ROMS — 1571 - PART NUMBER 310654-03 / 310654-05
C128D - PART NUMBER 318047-01
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This option Downloads the Diagnostic Code to the Test System.
* If the Download is successful the Activity LED should be
flashing at a consistent rate.
* Press (Y)es or (N)o
* If the Activity LED is not flashing at a constant rate after the
Download is complete, a Download Failure has occurred and (N)o
should be selected.
* If a Download Failure occurs the drive must be Reset before the
Download may again be attempted. Reset the drive by ....
* 1571 - Turn the Power OFF then ON
* C128D - Press the Drive RESET SWITCH
* Press RETURN - Retry Download
* A Total Of Three (3) Attempts May Be Made Before The System Is
Determined To Have A Hard Failure
* Press RETURN - Return to Menu
Displays Logic Diagnostic Main Menu
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