Acer Travelmate 6460 Service Guide
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Chapter 475 Please use the following procedures as a guide for computer problems. Note: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or modified options may occur errors or invalid responses. 1. Obtain the detailed fail symptoms as many as possible. 2. Verify the symptoms by attempting to recreate, running the diagnostic tests or repeating the same operation. Troubleshooting Chapter 4
76Chapter 4 System Check Procedures External Diskette Drive Check Do the following procedures to isolate the possible effects from a controller, driver, or diskette. A writable, diagnostic diskette is required. Note: Make sure that the diskette does not have more than one label attached. Multiple labels may cause damage to the drive or make the drive fail. 1. Boot from the diagnostic diskette and start the diagnostic programs. 2. See if FDD test is passed as the programs run the FDD test. 3. Follow the instructions in the message window. If errors occur with the internal diskette driver, reconnect the diskette connector on the system board. If the errors still remain: 1. Reconnect the external diskette drive. 2. Replace the external diskette driver. 3. Replace the main board. External CD-ROM Drive Check Do the following procedures to isolate the possible effects from a controller, driver, or CD-ROM. Note: Make sure that the CD-ROM does not have any label attached. The label may cause damage to the drive or make the drive fail. 1. Boot from the diagnostic diskette and start the diagnostic programs. 2. See if CD-ROM test is passed when the programs run the CD-ROM test. 3. Follow the instructions in the message window. If errors occur, reconnect the connector on the system board. If the errors still remain: 1. Reconnect the external CD-ROM drive. 2. Replace the external CD-ROM drive. 3. Replace the main board. Keyboard or Auxiliary Input Device Check Remove the external keyboard if the internal keyboard is under test. If the internal keyboard does not work or an unexpected error appears, make sure that the flexible cable extending from the internal keyboard is correctly connected on the system board. If the keyboard is correctly connected, run the Keyboard test. If errors occur, do the following procedures in sequence to correct the problems. Do not replace a non-defective FRU. 1. Reconnect the keyboard cable. 2. Replace the keyboard. 3. Replace the main board. The following auxiliary input devices are supported by this computer. •Numeric keypad •External keyboard If any of these devices do not function, reconnect the cable and repeat the anterior procedures. Memory Check Follow the procedures below to correct the memory errors. 1. Boot from the diagnostic diskette and start the diagnostic programs.
Chapter 477 2. Go to the diagnostic memory in the test items. 3. Press F2 in the test items. 4. Follow the instructions in the message window. Note: Make sure that the DIMM is correctly inserted into the connector. A wrong connection will cause errors. Power System Check To verify the symptoms, power on the computer by using the following power sources separately. 1. Remove the battery pack. 2. Connect the power adaptor and check the power supply. 3. Disconnect the power adaptor and install the battery pack, then check the power supply. If you think there is a power supply problem, please go to Check the Power Adaptor and Check the Battery Pack in this chapter. Check the Power Adaptor Unplug the power adaptor cable from the computer and measure the output voltage at the plug of the power adaptor cable. See the illustration and follow the procedures below. 1. If the voltage is not correct, replace the power adaptor. 2. If the voltage is within the range: (1)Replace the system board. (2)If the problem is still not resolved, see Undetermined Problems. (3)If the voltage is not correct, go to the next step. Note: An audible noise from the power adaptor does not always indicate a defect. 3. If the power-on indicator does not light up, check the power cord of the power adaptor for continuity and correct installation. 4. If the operational charge does not work, see Check the Battery Pack. Check the Battery Pack Follow the procedures below to check the battery pack. From software, this helps to identify the problem is on recharging or discharging. 1. Check the Power Management in Control Panel. 2. Then confirm that the parameters shown in the screen for Current Power Source and Total Battery Power Remaining are correct. 3. Repeat the step 1 and step 2 for both battery and adaptor. From hardware, this helps to identify whether you should replace the battery pack or not. 1. Power off the system. 2. Remove the battery pack and measure the voltage between terminals one (+) and seven (-). There are seven terminals totally. See the illustration below. 3. If the voltage is still less than 7.5V after recharging, replace the battery. If the battery status indicator does not light up, remove the battery pack. After the battery pack returns to room temperature, reinstall it to the system. pin 1: +19V to +20.5V pin 2: 0V, ground
78Chapter 4 If the charge indicator does not light up, replace the battery pack. If the charge indicator still does not light up, replace the AC / DC charger board. Touchpad Check If the touchpad does not work, follow the procedures one at a time to correct the problem. Do not replace a non- defective FRU. 1. Reconnect the touchpad cables. 2. Replace the touchpad. 3. Replace the system board. After you use the touchpad, the pointer drifts on the screen for a short time. This self-acting pointer movement will occur when a slight, steady pressure is applied to the touchpad pointer. This symptom is not a hardware problem.
Chapter 479 Power-On Self-Test (POST) Error Message The POST error message index lists the error message and their possible causes. Note: Perform the FRU replacement or actions in the sequence shown in Error Message List, if the FRU replacement does not solve the problem, put the original part back in the computer. Do not replace a non- defective FRU. The error messages are listed in the coming pages to indicate the BIOS signals on the screen and the error symptoms classified by functions. If the symptom is not included on the list, please refer to Undetermined Problems. Note: Most of the error messages occur during POST. Some of them show information about a hardware device, for example, the size of memory installed. Others may indicate problems with a device, such as the way it has been configured. Note: If the system fails after you make changes in the BIOS Setup Utility menus, please reset the computer. Enter Setup and install Setup defaults to correct the errors. Index of Error Messages Error Code List Error Message List Error CodeError Message 006 Equipment Configuration Error Causes: • CPU BIOS Update Code Mismatch • IDE Primary Channel Master Drive Error The causes will be shown before Equipment Configuration Error. 010 Memory Error at xxxx:xxxx:xxxxh (R: xxxxh, W: xxxxh) 070 Real Time Clock Error 071 CMOS Battery Bad 072 CMOS Checksum Error 110 System disabled. Incorrect password is specified. No error code Battery critical low: In this situation BIOS will issue four short beeps then shut down system, no message will be shown. No error code Thermal critical high: In this situation BIOS will shut down the system, no message will be shown. Error MessageFRU/Action in Sequence Failure Fixed Disk Reconnect hard disk drive connector. Run Load Default Settings in BIOS Setup Utility. Hard disk drive System board Stuck Key see Keyboard or Auxiliary Input Device Check. Keyboard error see Keyboard or Auxiliary Input Device Check. Keyboard Controller Failed see Keyboard or Auxiliary Input Device Check. Keyboard locked - Unlock key switchUnlock external keyboard Monitor type does not match CMOS - Run SetupRun Load Default Settings in BIOS Setup Utility.
80Chapter 4 Shadow RAM Failed at offset: nnnnBIOS ROM System board System RAM Failed at offset: nnnnDIMM System board Extended RAM Failed at offset: nnnnDIMM System board System battery is dead - Replace and run SetupReplace RTC battery and Run BIOS Setup Utility to reconfigure system time, then reboot system. System CMOS checksum bad - Default configuration usedRTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. System timer error RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. System board Real time clock error RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. System board Previous boot incomplete - Default configuration usedRun Load Default Settings in BIOS Setup Utility. RTC battery System board Memory size found by POST differed from CMOSRun Load Default Settings in BIOS Setup Utility. DIMM System board Diskette drive A error Check the drive is defined with the proper diskette type in BIOS Setup Utility. See External Diskette Drive Check. Incorrect Drive A type - run SetupCheck the drive is defined with the proper diskette type in BIOS Setup Utility. System cache error - Cache disabledSystem board CPU ID: System board DMA Test Failed DIMM System board Software NMI Failed DIMM System board Fail-Safe Timer NMI Failed DIMM System board Device Address Conflict Run Load Default Settings in BIOS Setup Utility. RTC battery System board Allocation Error for device Run Load Default Settings in BIOS Setup Utility. RTC battery System board Failing Bits: nnnn DIMM BIOS ROM System board Fixed Disk n None Error MessageFRU/Action in Sequence
Chapter 481 Invalid System Configuration DataBIOS ROM System board I/O device IRQ conflict Run Load Default Settings in BIOS Setup Utility. RTC battery System board Operating system not found Enter Setup and see if fixed disk and drive A: are properly identified. Diskette drive Hard disk drive System board No beep, power-on indicator turns off and LCD is blank.Power source (battery pack and power adapter). See Power System Check. Ensure every connector is connected correctly. Reconnect the DIMM. LED board System board No beep, power-on indicator turns on and LCD is blank.Power source (battery pack and power adapter). See Power System Check. Reconnect the LCD connector. Hard disk drive LCD inverter ID LCD cable LCD Inverter LCD System board No beep, power-on indicator turns on and LCD is blank. But you can see POST on an external CRT. Reconnect the LCD connectors. LCD inverter ID LCD cable LCD inverter LCD System board No beep, power-on indicator turns on and a blinking cursor shown on LCD during POST.Ensure every connector is connected tightly and correctly. System board No beep during POST but system runs correctly.Speaker System board Error MessageFRU/Action in Sequence
82Chapter 4 Phoenix BIOS Beep Codes Beep CodePost CodeDescriptionWhat to Check (Recommended) 1-1-1-3 02h Verify Real Mode. • Check the processor. • Check the main board. 1-1-2-1 04h Get CPU type. • Check the processor. • Check the main board. 1-1-2-3 06h Initialize system hardware. • Check the main board. 1-1-3-1 08h Initialize cache to initial POST values.• Check the main board. 1-1-3-2 09h Set in POST flag. • Check the main board. 1-1-3-3 0Ah Initialize CPU registers. • Check the processor. • Check the main board. 1-1-4-1 0Ch Initialize cache to initial POST values.• Check the secondary cache. • Check the processor. • Check the main board. 1-1-4-3 0Eh Initialize I/O. • Make sure all the cards are securely inserted into the system. • Make sure that there are no physical problems with the main board or internal connections. • Disable all shadowing of expansion adapter ROMs and see if that fixes the problem. • Remove all unnecessary expansion cards (basically, everything but the video card) and see if the problem goes away. If it does, the problem is probably one of the expansion cards you removed. If not, your problem lies elsewhere. Try to isolate the problem by inserting one expansion card at a time back into the system and seeing which on e triggers the problem. 1-2-1-1 10h Initialize Power Management.• Check the main board. 1-2-1-2 11h Load alternate registers with initial POST values.• Check the main board. 1-2-1-3 12h Jump to UserPatch0. • Check the main board. 1-2-2-1 14h Initialize keyboard controller.• Check the keyboard. • Check the keyboard controller. • Check the main board. 1-2-2-3 16h BIOS ROM checksum. • Check the main board. 1-2-3-1 18h 8254 timer initialization. • Check the main board. 1-2-3-3 1Ah 8237 DMA controller initialization• Treat as an expansion card problem. • Check the main board. 1-2-4-1 1Ch Reset Programmable Interrupt Controller• Treat as an expansion card problem. • Check the main board. 1-3-1-1 20h Test DRAM refresh. • Check the system memory. • Check the main board.
Chapter 483 1-3-1-3 22h Test 8742 keyboard controller.• Check the keyboard. • Check the keyboard controller. • Check the main board. 1-3-2-1 24h Set ES segment register to 4GB.• Check the main board. 1-3-3-1 28h Autosize DRAM. • Check the system memory. • Check the main board. 1-3-3-3 2Ah Clear 512K base RAM. • Check the system memory. • Check the main board. 1-3-4-1 2Ch RAM failure on address line xxxx.• Check the system memory. • Check the main board. 1-3-4-3 2Eh RAM failure on data bits xxxx of low byte of memory bus.• Check the system memory. • Check the main board. 1-4-1-3 32h Test CPU bus-clock frequency.• Check the processor. • Check the main board. 1-4-2-1 34h COMS RAM read/write failure.• Check the main board. 1-4-2-4 37h Reinitialize the chipset. • Check the main board. 1-4-3-1 38h Shadow system BIOS ROM.• Check the expansion cards. • Check the system memory. • Check the main board. 1-4-3-2 39h Reinitialize the cache. • Check the secondary cache. • Check the processor. • Check the main board. 1-4-3-3 3Ah Autosize cache. • Check the secondary cache. • Check the processor. • Check main board. 1-4-4-1 3Ch Configure advanced chipset registers.• Check the main board. 1-4-4-2 3Dh Load alternate registers with CMOS values.• Check the main board. 2-1-1-1 40h Set Initial CPU speed. • Check the main board. 2-1-1-3 42h Initialize interrupt vector. • Treat as an expansion card problem. • Check the main board. 2-1-2-1 44h Initialize BIOS interrupt. • Treat as an expansion card problem. • Check the main board. 2-1-2-3 46h Check ROM copyright notice.• Check the main board. 2-1-2-4 47h Initialize manager for PCI Options ROMs.• Treat as an expansion card problem. • Check the serial port(s). • Check the parallel port(s). • Check the main board. 2-1-3-1 48h Check video configuration against CMOS.• Check the video card. • Make sure the system memory is working properly. • Check the main board. Beep CodePost CodeDescriptionWhat to Check (Recommended)
84Chapter 4 2-1-3-2 49h Initialize PCI bus and devices.• Treat as an expansion card problem. • Check the serial port(s). • Check the parallel port(s). • Check the main board. 2-1-3-3 4Ah Initialize all video adapters in system.• Check the video card. • Make sure the system memory is working properly. 2-1-4-1 4Ch Shadow video BIOS ROM. • Check the expansion cards. • Check the system memory. • Check the main board. 2-1-4-3 4Eh Display copyright notice. • Check the video card. • Check the main board. 2-2-1-1 50h Display CPU type and speed.• Check the video card. 2-2-1-3 52h Test keyboard. • Check the keyboard. • Check the keyboard controller. • Check the main board. 2-2-2-1 54h Set key click if enabled. • Check the keyboard. • Check the keyboard controller. • Check the main board. 2-2-2-3 56h Enable keyboard. • Check the keyboard. • Check the keyboard controller. • Check the main board. 2-2-3-1 58h Test for unexpected interrupts.• Treat as an expansion card problem. • Check the main board. 2-2-3-3 5Ah Display prompt “Press F2 to enter SETUP”.• Check the video card. • Check the main board. 2-2-4-1 5Ch Test RAM between 512 and 640K.• Check the system memory. • Check the main board. 2-3-1-1 60h Test expanded memory. • Check the system memory. • Check the main board. 2-3-1-3 62h Test extended memory address lines.• Check the system memory. • Check the main board. 2-3-2-1 64h Jump to UserPatch1. • Check the main board. 2-3-2-3 66h Configure advanced cache registers.• Check the secondary cache. • Check the processor. • Check the main board. 2-3-3-1 68h Enable external and CPU caches.• Check the secondary cache. • Check the processor. • Check the main board. 2-3-3-2 69h Initialize SMI handler. • Check the main board. 2-3-3-3 6Ah Display external cache size.• Check the video card. • Check the main board. 2-3-4-1 6Ch Display shadow message. • Check the video card. • Check the main board. 2-3-4-3 6Eh Display non-disposable segments.• Check the video card. • Check the main board. Beep CodePost CodeDescriptionWhat to Check (Recommended)