Lenovo E200 Hardware Maintenance Manual (HMM) - 3000 E200 (type 7848) - Page 84
Undetermined, problems
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Message/Symptom FRU/Action Non-system disk or disk error-type message with a known-good diagnostic diskette. 1. Diskette Drive 2. System Board 3. Diskette Drive Cable Other display symptoms not listed above (including blank or illegible display) 1. Display 2. System Board Power-on indicator or hard disk drive in-use 1. Power switch/LED assembly light not on, but computer works correctly 2. System Board Printer problems 1. Printer 2. System Board Program loads from the hard disk with a known-good diagnostics diskette in the first 3.5-inch diskette drive 1. Run Setup and check Startup sequence. 2. Diskette Drive 3. Diskette Drive Cable 4. System Board 5. Power Supply RPL computer cannot access programs from its own hard disk. 1. If network administrator is using LCCM Hybrid RPL, check startup sequence: a. First device - network b. Second device - hard disk 2. Hard disk drive RPL computer does not RPL from server 1. Check startup sequence 2. Check the network adapter LED status Serial or parallel port device failure (system board port) 1. External Device Self-Test OK? 2. External Device 3. Cable 4. System Board Serial or parallel port device failure (adapter 1. External Device Self-Test OK? port) 2. External Device 3. Cable 4. Alternate Adapter 5. System Board Some or all keys on the keyboard do not work 1. Keyboard 2. Keyboard Cable 3. System Board Undetermined problems If the problem is not listed in the error symptoms and possible causes above, do the following steps: 1. Power-off the computer. 2. Remove or disconnect the following components (if installed) one at a time. a. External devices (modem, printer, or mouse) b. Any adapters 78 Lenovo E200 Hardware Maintenance Manual