IBM 5150 - Page 20

1. Position the System Unit Power switch to the Off position •
and remove the
AC power cord from the wall outlet. I I
2. Remove all non-IBM devices except the display or optional
cassette player.
3. Turn
the Contrast and Brightness controls fully clockwise.
4. See
that all connectors are installed securely and in their
proper locations.
Display Power Display Signal
(IBM Display Only)
(IBM Display Only)
Keyboard
ARE ALL CONNECTORS INSTALLED SECURELY AND
IN THE PROPER LOCATIONS?
NO Reconnect or repair the connectors. If this has not
corrected your failure, go to the next page.
YES
010-3