dynabook Satellite Pro L50-G - Chapter 6 Troubleshooting; Problem-solving process; Preliminary checklist

3 Diagnostic Programs 3.2.3 Memory Test
Satellite Pro L50-G / dynabookP*-C* Maintenance Manual 8
Figure -6 Memory Testing Process
1. ProceedAll Test Items
The item is to run all memory test items oneby one.
2. Walking 1 Test
The test item is to ensurethat thereis no short circuitry issuein memory chip. It
will wire eachmemory addressonebit ‘1’ (likes a data1 working) andreadfrom
memory to checkthe write result.
3. Walking 0 Test