IBM 6151 Maintenance And Service Manual page 95

49x
IBM Monochrome Display and Printer Adapter
Additional Tests: Run the
IBM
Monochrome Display and
Printer Adapter Checkout.
Removal Procedure: See Adapter Removal in Section 4.
Repair Checkout: Run the
IBM
Monochrome Display and
Printer Adapter Checkout.
4Ax
IBM Megapel Display Processor
Additional Tests: Run the Display Checkout.
Removal Procedure: See "Removal Procedure" on page 9-053-2.
Repair Checkout: Run the Display Checkout.
4Bx
IBM Megapel Display Controller
Additional Tests: Run the Display Checkout and if listed, the
IBM
Megapel Parallel Port Checkout.
Removal Procedure: See "Removal Procedure" on page 9-053-2.
Repair Checkout: Run the Display Checkout and if listed, the
IBM
Megapel Parallel Port Checkout.
(6/88) Problem Isolation Charts 3-0020-17