Toshiba dk14 Display Backup RAM Test Results, Program 00 Part 2 - Overview, 2-16, TEST 1 =OK

Initialization & Test

Program 00 – Part 2: Processor RAM Test

Display Backup RAM Test Results

￿￿￿￿￿￿￿￿￿￿￿￿￿￿6SNU￿￿+ROG￿6SNU￿￿

DK424

￿Programming Telephone LCD Displays:

DK14/DK40i

TEST 2 X=OK Y=OK

or...

TEST 1 =OK

or...

TEST 2 X=NG Y=NG X=00000 X=00000

Where:

X= RCTUA, RCTUBA, RCTUC

Y= RCTUD3, RCTUF

OK = RAM is good

NG = RAM is defective

TEST 2 =NG

An X=NG or Y=NG RAM test result indicates a defective RCTU PCB; change the appropriate (X or Y) RCTU PCB and retest RAM on the newly installed RCTU.

Replace the DK14 or DK40i Base KSU if Test 1=NG.

Program 00 Part 2 - Overview

Use this program to test the RAM on system processor. If a RAM test error occurs during this test, the processor causing the error should be replaced. In the case of two-PCB processors, isolation of a RAM failure is indicated on the programming telephone X or Y (see above).

If the DK14 or DK40i processor fails the RAM test, the Base KSU must be replaced.

CAUTION! Running each RAM test drops all calls and interrupts telephone service for 15 seconds.

Note Running Program 00 RAM tests do not change or erase any customer data.

2-16 Strata DK Programming 5/99