Lenovo ThinkPad 360 Hardware Maintenance Manual - Page 81

007 (continued) - Run the memory test. Use the RUN TESTS ONE TIME option. DID THE MEMORY TESTS END WITHOUT AN ERROR? Yes No 008 Replace the IC DRAM card in slot 2. If the problem is not corrected, replace the system board. 009 If the problem occurs intermittently, run the memory tests multiple times to create an error log. Power Systems Checkout Note: One or all of the batteries can discharge if there is a short circuit in the system. 1. Replace the failing FRU if the power supply problem is caused by a short circuit. 2. Determine if one (or all) of the batteries have become discharged. Replace any discharged battery with its spare, if available. The test procedures for each power supply are found on the following pages. "Checking the AC Adapter" on page 72. "Checking the Car Battery Adapter (700 only)" on page 73. "Checking the Battery Pack" on page 74. "Checking the Backup Battery" on page 75 "Checking the Standby Battery" on page 75. "Checking the Quick Charger" on page 76. "Checking the Voltage Converter (700, 700C)" on page 77. "Checking the Voltage Converter (720, 720C)" on page 78. ThinkPad 700, 700C, 720, 720C (9552) 71