IBM 6151 Maintenance And Service Manual page 136

Step 4
Read the DIAGNOSTIC OPERATING INSTRUCTIONS; then press
the Enter key.
DlAG-!
!Q.
ITEM
1 Dia.gnostic Routines
This selection allows you to test your machine's hardware and
determine if you have a hardware problem. Any problem will be indicated
by a SRN (Service Request Number). The SRN will allow your 8ervice
representative to quickly determine what parts are required to repair
your machine.
IS THE "FUNCTION SELECTION" MENU DISPLAYED?
NO
YES
3-0030-4 Service Manual
Record SRN 36-780; then go to "Step 33" on page 3-0030-33.
Continue on the next page.