AT&T 610 - Power Up

Operating Infomtion
Page 2- 4
User's Guide
August: 1985
Brightness -- Monitor brightness is controlled by a rotary
knob at the right front of the terminal. Rotating the knob
left or right varies the screen brightness.
Contrast -- Contrast is controlled by a rotary knob at the
front of the terminal. Rotating the knob left or right
varies the screen contrast.
Power Up
Upon power up, the terminal performs an initialization
process and confidence self-test. Successful completion of the
self-test is indicated by a "610 OK" message appearing on the
status line. If the terminal powers up with the default options
loaded, the function key strings and labels will contain their
default values and the message "Default Options Loaded" will
appear on the status line with the self-test "610 OK" message.
The terminal is ready to receive data when the Data Terminal
Ready (DTR) lead is on (+12 V). The User Fkey labels will
appear at the bottom of the display if the Labels Option is on
(refer to Section 5). If the keyboard is not connected, the
message "ERROR: Kybd" will be displayed on the status line;
however, the terminal is capable of receiving if the RAM passes
self-test. The terminal will then display a cursor (white
rectangle or underline on a black background) in the upper left
corner of the screen. The cursor occupies one character cell.
The terminal will clear the self-test message when it receives
data.
Cursor
(Can Optionally
bean
Underline)
Status
Line
Figure 2-2. Screen Layout
ser F key
Labels
(Label
Option On)
If the cursor and screen Fkey labels (if optioned for On)
have not appeared within thirty seconds, check that the
brightness control has not been adjusted so low that no video
can be seen.