Toshiba satellite l20-267 manual

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Warranty Extension Extend your warranty to up to four years, and achieve maximum peace of mind On-site repair Need professional assistance - no matter where you are? We're just around the corner. Registration Services Portal. Access everything. Battery charging is controlled by a power supply microprocessor.

The power supply microprocessor controls power supply and detects a full charge when the AC adaptor and battery are connected to the computer. When the AC adapter is connected, normal charging is used while the system is turned on and quick charge is used while the system is turned off. Refer to the following Table The main battery is fully charged. The main battery is removed. Main battery or AC adapter voltage is abnormal.

Charging current is abnormal. When turning off the power in being charged fully, the preservation time is as following Table The RTC battery provides the power supply to maintain the date, time, and other system information in memory. Table lists the Time required for charges of RTC battery and data preservation time. Troubleshooting Flowchart Power Supply Troubleshooting Power Status Check Procedure System Board Troubleshooting Keyboard Troubleshooting Touch pad Troubleshooting Display Troubleshooting Replacement Check Optical Disk Drive Troubleshooting Modem Troubleshooting Wireless LAN Troubleshooting Sound Troubleshooting Connector Check Chapter 2 describes how to determine which Field Replaceable Unit FRU in the computer is causing the computer to malfunction.

The FRUs covered are:. The Test Program operations are described in Chapter 3. Detailed replacement procedures are described in Chapter 4. The implement for the Diagnostics procedures is referred to Chapter 3. Also, following implements are necessary:. Phillips screwdrivers For replacement procedures. Implements for debugging port check. There are following two types of connections in the figure of board and module connection in and after 2.

Use the flowchart in Figure as a guide for determining which troubleshooting procedures to execute. Before going through the flowchart steps, verify the following:.

Verify with the customer that Toshiba Windows is installed on the hard disk. NonWindows operating systems can cause the computer to malfunction. If the diagnostics program cannot detect an error, the problem may be intermittent.

The Test program should be executed several times to isolate the problem. Check the Log Utilities function to confirm which diagnostic test detected an error s , then perform the appropriate troubleshooting procedures as follows:. If an error is detected on the display test, perform the Display Troubleshooting Procedures in Section 2. If an error is detected on the modem test, perform the Modem Troubleshooting Procedures in Section 2.

If an error is detected on the sound test, perform the Sound Troubleshooting Procedures in Section 2. The power supply controller controls many functions and components. To determine if the power supply is functioning properly, start with Procedure 1 and continue with the other Procedures as instructed. The procedures described in this section are:. It shows an error code. Remove the battery pack and the AC adapter.

Re-attach the battery pack and the AC adapter. If the icon is still blinking after the operation above, check the followings: Check 1 If the DC IN icon does not light, go to Procedure 2. If these cables are connected firmly, go to Check 2.

Check 3 Make sure the battery pack is installed in the computer correctly. If the battery is properly installed and the battery icon still does not light, go to Procedure 4. Check if the power supply controller charges the battery pack properly. Perform the following procedures:.

Check 2 Make sure the battery pack is properly installed. If it is properly installed, go to Check 3. Check 3 The battery pack may be completely discharged. Wait a few minutes to charge the battery pack while connecting the battery pack and the AC adapter. If the battery pack is still not charged, go to Check 4.

Leave the battery for a while to adjust it in the right temperature. If the battery pack is still not charged, go to Check 5. Check 5 Replace the battery pack with a new one. If the battery pack is still not charged, go to Procedure 4. The power is supplied to the system board by the AC adapter. If either the AC adapter or the system board was damaged, perform the following Checks. To disassemble the computer, follow the steps described in Chapter 4, Replacement Procedures.

Check 1 AC adapter may be faulty. Replace the AC adapter with a new one. If the problem still occurs, perform Check 2. Check 1 Battery pack may be faulty. Replace it with a new one. This section describes how to determine if the system board is malfunctioning or not. Start with Procedure 1 and continue with the other procedures as instructed.

Check 1 If one of the following error messages is displayed on the screen, press the F1 key as the message instructs. These errors occur when the system configuration preserved in the RTC memory CMOS type memory is not the same as the actual configuration or when the data is lost.

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