IBM 3270 Hardware User's Manual page 11

Step 2. Run the Power On Self-Test
(POST) ........................ 5-5
Step 3. Find Your Problem in the
POST Error Chart .............. 5-11
Step 4. Do the External Device Check 5-15
Step 5. Do the Display Check ...... 5-17
Step 6. Do the ExpansioI} Unit Check 5-25
Step 7. Do the Keyboard Check ..... 5-27
Index . . . . . . . . . . . . . . . . . . . . . . . . . . X-I
Vlll
Book 1 - 3270 PC Work Station User's Guide