Toshiba Strata DK 280 Installation Manual page 423

Program 00 -
Part 2: RCTU Random Access Memory (RAM) Test (R3)
RCTU TESTS RAM
(15 seconds downtime)
I) Programming telephone LCD displays:
"GENERAL RAM TEST"
Display General RAM Test Results2
n[srln~T?mTzlnTS]-ISpkrJ~~Jl-ISpkrll511 II) P g ro ramming telephone LCD displays:
where:
"TEST 1 X=OK X=OK'
X = Processor A, BA, C or D.
-or-
OK = Processor RAM is good.
NG = Processor RAM is defective.
"TEST 1 X=NG X=NG"
x=00000 x=ooooo3
Backup RAM Test'
4 Programming telephone LCD displays:
"BACKUP RAM TEST'
Display Backup Ram Test Results2
~jiqqiqqq~~~-~iqqiiiizj-n~r~
Spkr 6 2
w Programming telephone LCD displays:
where:
X = Processor A, BA, C or D.
OK = Processor RAM is good.
NG = Processor RAM is defective.
RCTU RAM TEST GUIDELINES
General Notes:
"TEST 2 X=OK Y=OR'
-or-
"TEST 2 X=NG Y=NG"
x=00000 x=ooooo3
. RCTU RAM test is provided by DK280 Release 3 RCTUs and above only.
. Run each RCTU RAM test when first installing an RCTU PCB after running initialization Program 91-9. RCTU
RAM test can also be performed any time maintenance or trouble shooting is required on an installed system that
contains a custom database programmed on the RCTU. The RCTU database programming is not affected (or
erased) when the RCTU RAM tests are performed.
Notes:
CAUTION !
1. When any RCTU RAM test is run, the DK280 will drop all calls in progress and will be inoperable for approximately
15 seconds.
2. Display the RAM test results immediately after running the RAM test; the RAM test results will always display the
results of the latest RAM test that was performed.
3. An "X=NG" or "Y=NG" RAM test result indicates a defective RCTU PCB; change the abpropriate (X)
RCTU PCB
and retest RAM on the newly installed RCTU.
January 1996
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