IBM 6150 Hardware Maintenance Manual page 86

TNL SN20-9850 (05-87) to 75X0152 or 75X0166
5Cx
FRU: IBM RT PC SCSI Adapter Fuse - - - - - - - - - - ,
Additional Tests: Run the R T PC SCSI Adapter Checkout.
Removal Procedure: See Adapter Removal in Section 4, then
exchange the fuse.
Repair Checkout: Run the R T PC SCSI Adapter Checkout.
60x
FRU: IBM 6153 Advanced Monochrome Graphics Display ----,
Additional Tests: Run the Display Checkout.
Removal Procedure: See Attached Device Removal in Section 4.
Repair Checkout: Run the Display Checkout.
61x
FRU: IBM 5081 Display - - - - - - - - - - - - - - - ,
Additional Tests: Go to the IBM 5081 MIM.
Removal Procedure: See the IBM 5081 MIM.
Repair Checkout: Run the Display Checkout.
(5/87) Problem Isolation Charts 3-0020-17