MAP 1541: JTAG Problem IsolationStep 1541-1Record the error code and location code(s) that sent you to this MAP.Step 1541-2Turn off the power.Step 1541-3Replace the following, if present, one at a time and in the order listed:v First location code item recorded, if any, “Step 1541-1.”v Second location code item recorded, if any, in “Step 1541-1.”v Third location code item recorded, if any, in “Step 1541-1.”v Fourth location code item recorded, if any, in “Step 1541-1.”v Replace the service processor card at U0.1-P1-X1.v All memory DIMMS on the system backplane at location U0.1-P1-Mn (n equals 1 to 8), if not recordedin “Step 1541-1.”v System backplane at location U0.1-P1, if not recorded in “Step 1541-1.”Step 1541-4Turn on the power.Step 1541-5Did the system stop with the same error code as recorded in “Step 1541-1”?Yes Go to “Step 1541-6.”No The part just replaced was defective. This ends the procedure.Return the system to its original configuration.Go to ″MAP 0410: Repair Checkout″ in the RS/6000 Eserver pSeries Diagnostic Information forMultiple Bus Systems.Step 1541-6Have all the cards listed in “Step 1541-3” been replaced?Yes Go to “Step 1541-7.”No Go to “Step 1541-2.”Step 1541-7Turn off the power. Call for support.MAP 1542: I/O Problem IsolationThis procedure is typically used to isolate problems associated with externally I/O subsystems and theCEC subsystem. This system unit does not have the capability to attach external I/O subsystems. Toisolate problems associated with I/O whenever you are directed to MAP 1542, go to “MAP 1548:Processor Subsystem Problem Isolation” on page 113.Note: This MAP is included to be consistent with MAP 1321, which is common to all machines that mightuse an HMC for system management.112 EserverpSeries 615 Service Guide
