IBM 6151 Maintenance And Service Manual page 321

IBM PC Enhanced Graphics Adapter Memory PIC 4200
This PIC analyzes the 42x and 44x SRA numbers. The letter in the
42x SRA number identifies the slot for the IBM PC Enhanced
Graphics Adapter. The letter in the 44x SRA number identifies the
failing module on the IBM PC Graphics Memory Expansion Card.
Step 1
1. Find the module that corresponds to the letter in the 44x SRA.
Then, use the "Removal and Replacement Procedures" on
page 9-042-1 to exchange that module.
2. Run the Display Checkout.
o
o
f\..JZBI08
WERE YOU ABLE TO LOAD AND RUN THE REPAIR
CHECKOUT AND DID THE "NO TROUBLE WAS FOUND"
MESSAGE DISPLAY?
YES Go to "Step 4" on page 3-4200-4.
NO
If
you were unable to select and run the Display Checkout,
go to "Problem Determination Procedure PIC 0030" on
page 3-0030-1. Otherwise, continue on the next page.
(6/88) Problem Isolation Charts 3-4200-1