Memorex 1377 Operation And Service Manual page 25

4. Offline Check
a. Pull power switch out to apply power to Display Station. Assure that
Audible Alarm sounds and that cursor, line number, and column number
appear on the screen (within 30 seconds) before proceeding. (If an error or
malfunction occurs at this point, follow applicable steps in customer
troubleshooting flowchart, Figure
4~11.)
If INPUT INHIBITED appears,
press RESET key.
b. Enter several random characters from the keyboard to verify accuracy in
character display.
c. Test function of CURSOR CONTROL keys.
d. Test INSERT MODE by pressing key. INSERT MODE should appear on
25th line of screen. Move the cursor to a location in the center of data
displayed on the screen. Insert two or three characters to assure that
INSERT MODE is functioning properly. Press Reset key.
,
.
e. Test DEL key by moving cursor to location in the center of data displayed
on the screen and pressing DEL two or three times to assure that
characters are properly deleted from display.
f. Test ERASE EOF key by moving cursor to a location in the center of data
displayed on the screen and presSing the ERASE EOF key. All data from
the cursor location to. the last character tYped on the screen should
disappear.
.
'
g. Test ERASE INPUT by pressing key andassu ring that aU data dIsplayed on
, the screen is erased.' . , ,
,
.
.
.
.
h.Testthe CLEAR key by' entering damon the. screen and then pressing
'CLEAR to" assure that the screen is cleared. INPUT INHIBITED should
appear . Press ' Reset key. .
Ifan error should occur or the Display Station should malfunction during
Offline Check (steps·b, through h.);
n~tifY
Memorexservice, Otherwise,
proceed to Step 5.
5. Connect coaxial cable from the Control Unit to the Display Station as shown
in Figure 3~2. Identify Display Station Coaxial Cable by tagging it at the
Control Unit connector and at the Display Station.
6. Online Check
If customer programs include IBM Online Tests (OL Ts) or Requests for Tests
(RFTs), these programs may be run to check the online functioning of the
Display Station. If these programs are unavailable, the customer application
program should be run for online testing. Should an error or malfunction
occur during the test program, the customer should follow the
troubleshooting guidelines set' forth in Section 4.
1377 .20-01-3n6 3~