Text preview for : Troubleshooting.pdf part of SAMSUNG Q320 Repair Manual
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4. Troubleshooting
4-1. General
Tools used for repairing the product
System Diagnostics Disk MS-DOS Booting Disk System Diagnostics Card Screwdrivers (+, -) Pincette Multimeter Oscilloscope / Logic Analyzer
Replaceable Unit (FRU: Field Replaceable Unit)
DDR2 SODIMM Module 2.5"SATA HDD Wireless LAN Module (Option) / Bluetooth Module (Option) Keyboard System Fan Touch Pad LCD Panel Main Board Harness Cable - Touchpad FFC, Bluetooth Cable, LCD Cable, Wireless LAN Antenna (Three case), Camera cable
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4. Troubleshooting
4-2. Debugging Flow Chart
Start
Turn on Power
NO Power on? Check Adapter, Battery
No problem
Check if the internal system is shortcircuited. It is problem.
No problem Change Mainboard and check it. It is problem.
It is problem. YES
Solution : Replace the defected part or revise the connectivity. It is problem. NO It is problem. It is problem. Check LCD Panel Inverter.
No problem
No problem
No problem
LCD display is OK?
Change memory
Check LCD cable
Change Mainboard and check it.
YES NO Check Keyboard connection and replace it. No problem Change Mainboard and check it.
Keyboard function is OK?
YES
Can the HDD ODD be recognized in CMOS?
NO
It is problem. Solution : Replace the defected part or revise the connectivity. It is problem. No problem Can the computer be Change Mainboard booted with the OS? and check it.
YES NO OS booting is OK? OS is corrupted ? No problem Change Mainboard and check it.
It is problem. YES Solution : Replace the defected part or revise the connectivity. It is problem. Touchpad function is OK? NO Check Touchpad FFC It is problem. Change Touchpad, and check function It is problem Change Mainboard and check it.
No problem
No problem
YES
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4. Troubleshooting
NO Speaker sound is OK? Check driver status. No problem No problem
Check speaker connection and speaker cable
Change Mainboard and check it.
YES
Headphone, MIC Jack function is OK? YES
NO
It is It is problem. problem. Solution : Replace the defected part or revise the connectivity. It is problem. No problem Change Mainboard and Check driver setting check it.
Internal MIC function is OK?
NO Check driver setting
NO
Check Internal MIC unit
Change Mainboard and check it.
YES
It is It is problem. problem. Solution : Replace the defected part or revise the connectivity. NO Change Mainboard and check it.
System USB Port function is OK?
YES
Express Card function is OK?
NO
Solution : Replace the defected part or revise the connectivity. It is It is problem. problem. No No problem problem Check Express Check driver setting. Card frame
Change Mainboard and check it.
YES NO Check driver No problem
3 in1 card function is OK?
Change Mainboard and check it.
YES
NO LAN function is OK?
It is problem. Solution : Replace the defected part or revise the connectivity. It is problem. No problem Change Mainboard and Check driver setting. check it.
YES
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4. Troubleshooting
YES Solution : Replace the defected part or revise the connectivity. It is problem. Bluetooth function is OK? NO Check driver It is problem. Check Bluetooth cable It is problem. Check Bluetooth module
No problem
No problem
No problem
Change Mainboard and check it.
YES NO WLAN function is OK? Check driver No problem Check WLAN card No problem
Change Mainboard and check it.
YES
It is problem.
It is problem.
Solution : Replace the defected part or revise the connectivity. It is problem. NO No problem Check driver
HDMI function is OK?
Change Mainboard and check it.
Camera function is OK?
Check the cable connections
No problem Check the cable itself
No problem Check the cable itself
Change Mainboard and check it.
YES
It is problem.
It is problem.
It is problem.
Solution : Replace the defected part or revise the connectivity. Finish
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4. Troubleshooting
4-3. System Diagnosis
System Diagnostics Card
The Diagnostics Card shows the system operations during the POST (Power On Self Test) in a 2 digit hexadecimal number by connecting the cable to the 10 pin connector below the PCMCIA slot after separating the Top part. The card is used to evaluate the reason for the malfunction without disassembling the system when the system malfunctions and to test if the system operates normally after replacing a defective FRU.
Chipset POST Codes Table
POST Code 0xA0 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x10 0x11 0x12 0x13 0x14 0x17 0x18 0x19 0x20 0x21 0x22 0x23 0x24 0x25 0x26 0x27 0x28 0x29 0x30 0x31 0x32 0x33 0x34 0x35 0x36 MRC Entry Enable MCHBAR Check ME existence Check for DRAM initialization interrupt and reset fail Determine the system Memory type based on first populated socket Verify all DIMMs are DDR2 and SO-DIMMS, which are unbuffered Verify all DIMMs are Non-ECC Verify all DIMMs are single or double sided and not mixed Verify all DIMMs are x8 or x16 width Calculate number of Row and Column bits Calculate number of banks for each DIMM Determine raw card type Find a common CAS latency between the DIMMS and the MCH Determine the memory frequency and CAS latency to program Determine the smallest common timing value for all DIMMS Power management resume Program DRAM type (DDR2/DDR3) and Power up sequence Program the correct system memory frequency Program the correct Graphics memory frequency Early DRC initialization Program the DRAM Row Attributes and DRAM Row Boundary registe rs PRE JEDEC.b Program the RCOMP SRAM registers Program DRAM type (DDR2/DDR3) and Power up sequence Program the DRAM Timing Program the DRAM Bank Architecture register Enable all clocks on populated rows Program MCH ODT Program tRD Miscellaneous Pre JEDEC steps Program clock crossing registers Program the Egress port timings Program the Memory IO registers Perform steps required before JEDEC Perform JEDEC memory initialization for all memory rows Setup DRAM control register for normal operation and enable Function PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI Phase Component chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC
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4. Troubleshooting
POST Code 0x37 0x38 0x39 0x40 0x41 0x42 0x43 0x44 0x45 0x46 0x47 0x48 0xAF 0xE0 0xE1 0xE2 0xE3 0xE4 0xE5 0xE6 0xE7 0xE9 0xEA 0xEC 0xED 0xEE 0xEF 0xF0 0xF1 0xF2 0xF6 0xF3 0xF4 0xF5 0xFA 0xFB 0xA0xx 0xA4xx 0xE5 0xE6 0x00 0x01 Function Do ZQ calibration for DDR3 Perform final Dra/Drb programming, Set the mode of operation for th e memory channels Set Enhanced addressing mode for each channel Perform steps required after JEDEC init Program the receive enable reference timing control register Post receive enable initialization Enable sense amps. Reset read/write DQS pointers Perform ME steps Clear DRAM initialization bit in the ICH. Program Thermal Management Program TS on DIMM Program TS on Board Exit MRC #define MEM_ERR_BAD_DIMM (S11) #define MEM_ERR_ECC_DIMM (S06) #define MEM_ERR_SIDES (S07) #define MEM_ERR_WIDTH (S08, S10) #define MEM_ERR_TRFC (FindTrasTrpTrcd) #define MEM_ERR_CAS_LATENCY (S12, S13) #define MEM_ERR_REFRESH (ProgDrt ) #define MEM_ERR_BL8 (S14) #define MEM_ERR_FREQUENCY (findTCLTacTClk, S13, S12, Progra mGraphicsFrequency, ProgMchOdt, GetPlatformData) #define MEM_ERR_SIZE (S14) #define MEM_ERR_TRAS (FindTrasTrpTrcd) #define MEM_ERR_TRP (FindTrasTrpTrcd) #define MEM_ERR_TRCD (FindTrasTrpTrcd) #define MEM_ERR_TWR (FindTrasTrpTrcd) #define MEM_ERR_RCVEN_FINDLOW (CalibrateRcvenForGroup) #define MEM_ERR_RCVEN_FINDEDGE (CalibrateRcvenForGroup) #define MEM_ERR_RCVEN_FINDPREAMBLE (CalibrateRcvenForGroup) #define MEM_ERR_RCVEN_PREAMBLEEDGE (CalibrateRcvenForGroup) #define MEM_ERR_RCVEN_FINDCENTER (CalibrateRcvenForGroup) #define MEM_ERR_TYPE (S11, S04) #define MEM_ERR_RAWCARD (S11) #define MEM_ERR_SFF (ProgWrioDll) #define MEM_ERR_THERMAL (ProgramThrottling) Launch BIOS ACMSclean Launch BIOS ACMScheck Wait for ME ready ME Ready Early Microcode update for CAR Enable CAR PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI DXE DXE CEI / SEC CEI / SEC Phase Component chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC chipset/MRC HECI/iAMT HECI/iAMT Core Core
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4. Troubleshooting
POST Code 0x02 0xEE 0xEF 0xnn 0x11 0x22 0x33 0x44 0x88 0x80 0x82 0x84 0x86 0x88 0x8A 0x8C 0x8F 0x90 0xCC 0x20 0x21 0x22 0x23 0x80 0x81 0x82 0x89 0x83 0x84 0x88 0x8A 0x8B 0x8C 0x8D 0x8F 0x90 0x91 0x92 0x99 0x93 0x94 0x98 0x95 0x96 0x97 CAR Done, initial stack unknown CPU ID to load uCode unknown DT CPU to load uCode File count found in a volume Debug Test driver for debug test PPI 1 (If install debugTest driver) Debug Test driver for debug test PPI 2 (If install debugTest driver) Debug Test driver for debug test PPI 3 (If install debugTest driver) Entry point of loadfile Entry point of apMuLoader A PEIM found PEIM not dispatched yet PEIM satisfies depex Image loaded but fail on security Executing a PEIM Processing notify event for newly installed PPI Handing off to next phase (DXE) Fail to hand off to next phase, system halt All.PEIM.dispatched!.Going.to.DxeIpl. AP Micro-code update S3 resume entry Start running Boot-time bootscripts Start running Run-time bootscripts End of S3 resume, jump back to Waking vector Initialize the chipset Initialize the bridge Initialize the CPU Set Huge Segment Initialize system timer Initialize system I/O Initialize Multi Processor Initialize OEM special code Initialize PIC and DMA Initialize Memory type Initialize Memory size Initialize SMM System memory test Initialize interrupt vectors Initialize Run Time Clock Initialize security Initialize video Output one beep USB Initialization Initialize the installed boot devices Clear Huge segment Boot Crisis Disk Function Phase CEI / SEC CEI / SEC CEI / SEC PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI S3 resume S3 resume S3 resume S3 resume
Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery Crisis Recovery
Component Core CPU CPU Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core
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4. Troubleshooting
POST Code 0x20 0x30 0x02 0x00 0x38 0xB1 0xE0 0x07 0x0D 0x10 0x49 0xC6 0xE0 0x90 0x90 0x90 0x33 0x22 0x11 0x02 0x02 0x02 0x02 0x09 0x09 0x12 0x12 0x12 0x12 0x12 0x04 0x12 0x04 0x22 0xB1 0xE3 0x20 0xDA 0x29 0xE5 0x33 0x01 0xD8 DXE starts BIOSPSM BIOSBlockIO BIOSPSM Exception Handler - Divide error Cannot locate LegacyRegion DXE ACPISupport driver Installed BDS Entry IA32 variable driver entry conspliter driver entry partition driver entry pciRootBridge driver entry pciBusDriver entry Go to legacy BIOS or BDS Entry Point Start Image Start Image Successfully Start Image Failed Debug Test driver for debug test PPI 1 Debug Test driver for debug test PPI 2 Debug Test driver for debug test PPI 3 Invalid event # for measuring Separator Event Invalid event # for measuring Separator Event PCR Index over limit (PCR > 23) TCG copy memory failed TCG log event failed Setup event log failed TIS set active locality failed TIS relinquish active locality failed TIS wait command ready failed (prepare to send) TIS abort `send `command due to timeout TIS abort `sendAndGo `command due to timeout TIS wait bit set failed before send last byte TIS abort command due to timeout before send last byte TIS wait bit clear failed when sending last byte TCG Physical Presence execution TCG DXE common pass through First Legacy BIOS Task table for legacy reset Verify that DRAM refresh is operating by polling the refresh bit in PO RTB Dummy PCIE Init entry, now handled by driver PMM (POST Memory Manager) init WHEA init PDM (Post Dispatcher Manager) init IPMI ini ASF Init Function Phase DXE DXE DXE BIOSPSM BIOSPSM DXE DXE DXE DXE DXE DXE DXE DXE DXE DXE DXE DXE PEI PEI PEI PEI PEI PEI PEI PEI PEI DXE DXE DXE DXE DXE DXE DXE DXE DXE LBT LBT LBT LBT LBT LBT LBT LBT Component Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core TCG TCG TCG TCG TCG TCG TCG TCG TCG TCG TCG TCG TCG TCG TCG TCG Core Core Core Core Core Core Core Core
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4. Troubleshooting
POST Code Function Set in- POST flag in CMOS that indicates we are in POST. If this bit is not cleared by postClearBootFlagJ (AEh), the TrustedCore on next b oot determines that the current configuration caused POST to fail an d uses default values for configuration. Clear the Enhanced CMOS init EFI Variable Init PEM (Post Error Manager) init Debug Service Init (ROM Polit) POST Update Error Autosize external cache and program cache size for enabling later in POST. Enable CPU cache. Set bits in cmos related to cache. Enable the local bus IDE as primary or secondary depending on othe r drives detected. Initialize Power Management. Verify that the 8742 keyboard controller is responding. Send a selftest command to the 8742 and wait for results. Also read the switch input s from the 8742 and write the keyboard controller command byte. nitialize DMA command register with these settings: 1. Memory to memory disabled 2. Channel 0 hold address disabled 3. Controller enabled 4. Normal timing 5. Fixed priority 6. Late write selection 7. DREQ sense active 8. DACK sense active low. Initialize Reset the keyboard. Test A20 line Quick initialization of all Application Processors in a multiprocessor system Compute CPU speed. Phase Component
0x09
LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT
Core Core Core Core Core Core Core Core Core Core
0x2B 0xE0 0xC1 0x3B 0xDC 0x3A 0x0B 0x0F 0x10 0x14
LBT
Core
0x1A
LBT LBT LBT LBT LBT
Core Core Core Core Core Core Core
0x22 0x40 0x67 0x32 0x69 0x6B
0x3C
LBT nitialize the handler for SMM. If CMOS is bad, load Custom Defaults from flash into CMOS. If succe ssful, reboot. LBT If CMOS is valid, load chipset registers with values from CMOS, other wise load defaults and display Setup prompt. If Auto Configuration is enabled, always load LBT the chipset registers with the Setup defaults (Rel 6.0). Load alternate registers with CMOS values Initialize interrupt vectors 0 thru 77h Verify the ROM copyright notice Initialize all motherboard devices. 1. Size the PCI bus topology and set bridge bus numbers. 2. Set the system max bus number. 3. Write a 0 to the command register of every PCI device. 4. Write a 0 to all 6 base registers in every PCI device. 5. Write a -1 to the status register of every PC Initialize note dock PnPnd dual CMOS (optional) LBT LBT LBT LBT
Core Core Core Core Core
0x3D 0x42 0x46 0x45
0x49
LBT LBT LBT
Core Core Core
0xC6 0xC5
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4. Troubleshooting
POST Code 0x48 0xD1 0xD3 0x24 0xCC 0x8A 0x9D 0x55 0x52 0x54 0x76 0x4A 0x4C 0x59 0x57 0xD6 0x58 0x3F 0xC4 0x7C 0x41 0x4B 0xDE 0xC6 0x4E 0xD4 0x50 0xC9 0x51 0x5A 0x5B 0x5C Function Verify that the equipment specified in the CMOS matches the hardwa re currently installed. If the monitor type is set to 00 then a video RO M must exist. If the monitor type is 1 or 2 set the video switchto CGA. If monitor type 3, set the video switch to m Initialize BIOS stack Setup E820h and WAD memory map Phase Component
LBT LBT LBT
Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core
LBT Set segment-register addressability to 4 GB Redirect Int 10h to enable target board to use a remote serial video (P ICO BIOS). LBT Initialize Extended BIOS Data Area and initialize the mouse. Initialize Security Engine. USB Initialization Verify keyboard reset. Initialize keystroke clicker if enabled in Setup. Check status bits for keyboardrelated failures. Display error messages on the screen. Initialize all video adapters in system Shadow video BIOS ROM if specified by Setup, and CMOS is valid an d the previous boot was OK. Register POST Display Services, fonts, and languages with the POST Dispatch Manager. Initialize 1394 Firewire Initialize PC card Test for unexpected interrupts. First do an STI for hot interrupts. S econdly, test the NMI for an unexpected interrupt. Thirdly, enable t he parity checkers and read from memory, checking for an unexpe cted interrup ROMPolit memory init LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT
LBT LBT
Core Core Core Core Core
LBT Install the IRQ vectors (Sever Hotkey) Initialize the hardware interrupt vectors from 08 to 0F and from 70h to 77H. Also set the interrupt vectors from 60h to 66H to zero. LBT ROM Pilot Init Initialize QuietBoot if it is installed. Enable both keyboard and timer i nterrupts (IRQ0 and IRQ1). If your POST tasks require interrupts off, preserve them with a PUSHF and CLI at the beginning and a POPF at the end. If you change the PIC, preserve the e Initialize and UNDI ROM (fro remote flash) Initial and install console for UCR Display copyright notice. Get CPU branding string Display CPU type and speed pretask before EISA init EISA Init Display prompt "Press F2 to enter SETUP" Disable CPU cache. Test RAM between 512K and 640K. Determine and test the amount of extended memory available. D etermine if memory exists by writing to a few strategic locations and see if the data can beread back. If so, perform an addressline test and a RAM test on the memory. Save the total extended LBT
LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT
Core Core Core Core Core Core Core Core Core Core Core
0x60
LBT
Core
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4. Troubleshooting
POST Code 0x62 0x64 0x66 0x68 0x6A 0x6C 0xCA 0x70 0x72 0x4F 0xCD 0x7D 0x7E 0xC1 0x80 0xCA 0x88 0x81 0x87 0x85 0x82 0x84 0x86 0x83 0xCE 0x89 0x8C 0xCB 0xCD 0x90 0x8B Function Phase Component The amount of memory available. This test is dependent on the proce ssor, since the test will vary depending on the width of memory (16 o r 32 bits). This test will also use A20 as the skew address to prevent corruption of the system memory. LBT Jump to UserPatch1. Set cache registers to their CMOS values if CMOS is valid, unless aut o configuration is enabled, in which case load cache registers from t he Setup default table. Enable external cache and CPU cache if present. Configure non-cacheable regions if necessary. Display external cache size on the screen if it is non-zero. Display shadow message post EISA init Check flags in CMOS and in the TrustedCore data area for errors dete cted during POST. Display error messages on the screen. Check status bits to see if configuration problems were detected. If so, display error messages on the screen. Initialize MultiBoot. Allocate memory for old and new MultiBoot histor y tables. Reclaim console vector after HW vectors initialized. Initialize Intelligent System Monitoring. The Coprocessor initialization test. Use the floating point instruction s to determine if a coprocessor exists instead of the ET bit in CR0. Check Boot Type (Server BIOS) Disable onboard COM and LPT ports before testing for presence of e xternal I/O devices.. Redirect Int 15h to enable target board to use remote keyboard (PICO BIOS). Initialize interrupt controller. Run late device initialization routines. Initialize motherboard configurable devices. Display any ESCD read errors and configure all PnP ISA devices. Test and identify RS232 ports. Test and identify parallel ports. Initialize onboard I/O and BDA according to CMOS and presence of e xternal devices. Configure Fisk Disk Controller. Initialize digitizer device and display installed message if successful. LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT
Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core
LBT Enable non-maskable interrupts. Initialize both of the floppy disks and display an error message if fail ure was detected. Check both drives to establish the appropriate disk ette types in the TrustedCore data area Redirect Int 13h to Memory Technologies Devices such as ROM, RAM , PCMCIA, and serial disk (PICO BIOS). Remap I/O and memory address space for PCMCIA (PICO BIOS). Initialize hard- disk controller. If the CMOS ram is valid and intact, an d fixed disks are defined, call the fixed disk init routine to initialize th e fixed disk system and take over the appropriate interrupt vectors. Setup interrupt vector and present bit in Equipment byte. 1. Check CMOS for CD- ROM drive present 2. Activate the drive by checking for media present 3. Check sector 11h (17) for Boot Record Volume Descriptor 4. Check the boot catalog for validity 5. Pick a boot entry 6. Create a Specification Packet
0x95
LBT
Core
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4. Troubleshooting
POST Code 0x92 0xB6 0x98 0x93 0xD9 0x9C 0xC7 0x9E 0xA0 0xA2 0xA4 0xDB 0xE2 0xC2 0xBA 0xC3 0xA8 0xAA 0xE1 0xAC 0x8F 0x91 0x9F 0xD7 0xAE 0xB0 0xB2 0xB5 0xC5 0xBE 0xB6 0xBC 0xB7 0x9B 0xBD 0xBF 0x97 Function Jump to UserPatch2. If password on boot is enabled, a call is made to Setup to check pass word. If the user does not enter a valid password, Setup does not ret urn. Search for option ROMs. Rom scan the area from C800h for a length of BCP_ROM_Scan_Size (or to E000h by default) on every 2K bound ary, lookingfor add on cards that need initialization Build the MPTABLE for multi-processor boards IPMI late init Set up Power Management. Initiate power- management state machine. Late note dock init Enable hardware interrupts Setup time tick for current date/time Setup Numlock indicator. Display a message if key switch is locked. Initialize typematic rate StrongROM Test OEM security key test Write PEM errors. Initialize the SMBIOS header and sub-structures. Display PEM errors. Overwrite the "Press F2 for Setup" prompt with spaces, erasing it fro m the screen. Scan the key buffer to see if the F2 key was struck after keyboard int errupts were enabled. If an F2 keystroke is found, set a flag. Start Periodic Timer (TC Subscribe) Check if "Enter SETUP" is pressed. Count the number of ATA drives in the system and update the numbe r in bdaFdiskcount. Configure the local bus IDE timing register based on the drives attac hed to it. Check the total number of Fast Disks (ATA and SCSI) and update the bdaFdiskCount. Check if FirstWare HPA exists Clear ConfigFailedBit and InPostBit in CMOS. Phase LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT Component Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core Core
LBT Check for errors and decide if needs to run Setup. Change status bits in CMOS and/or the TrustedCore data area to refle ct the fact that POST is complete. LBT Fade out OEM Logo or post string End hotkey detection (Server BIOS) If BCP option is enabled, clear the screen before booting. f password on boot is enabled, a call is made to Setup to check pass word. If the user does not enter a valid password, Setup does not return. Clear parity-error latch Initialize ACPI BIOS. Enable CPU management (Geyserville I) Display Boot First menu if MultiBoot is installed and hotkey pressed. Check virus and backup reminders. Create pointer to MP table in Extended BDA. LBT LBT LBT LBT LBT LBT LBT LBT LBT LBT
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4. Troubleshooting
POST Code 0x99 0xB1 0xDD 0xC7 0XDF 0xB3 0xE4 0xB9 0xC0 0xEF 0xEF 0xEE 0xEE Function Check support status for SelfMonitoring Analysis Reporting Technology (disk-failure warning). Unload ROM Pilot Perform remote flash if requested If UCR redirection is installed, remove display manager and unhook INT10 Shutdown the PXE UNDI code Store enhanced CMOS values in non-volatile area Last Legacy BIOS Task before hand off to UEFI/DXE Clear all screen graphics before booting. INT19 entry for legacy boot Invalid AP # Non-Yohna and non-Morem class CPU found for SDXE (getTSCFreq) AP cannot synch BSP in SDXE (syncWithBSP) BSP cannot synch w/ AP in SDXE (syncWithAP) Phase LBT LBT LBT LBT LBT LBT LBT bootLegacy bootLegacy SDXE SDXE SDXE SDXE Component Core Core Core Core Core Core Core Core Core Core Core Core Core
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4. Troubleshooting
System Diagnostics Card
Connect the debug card cable to J7 of the Main board as shown in the above figure.
The debug code can be checked with the viewer in the red circle of the figure shown above.
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4. Troubleshooting
4-4. Diagnosis application
1. After copying Windiag3 in any folder, execute OperatorInterface.exe.
2.
If OperatorInterface.exe runs properly, this window will be shown.
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4. Troubleshooting
3. Click"Open"toopenScriptfile. In case of Note PC, click TestScrip_NotePC_Bumin.xml. In case of Desktop, click TestScript_Desktop_Burnin.xml When you would like to execute each item for only once : Select the testScriptFormat_Concurrent.xml.
4.
After that, OperatorInterface shows the following scripts on the left of the display.
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4. Troubleshooting
5. Click "Start" button, then test begins.
6.
If you want to stop this, click "stop" button. If all modules don't stop in 2 minutes 30 seconds, message window will ask you about a forced stop. At that time, by selecting "yes", it can be ended by force.
7.
Click "EXIT", then it will be closed.
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4. Troubleshooting
4-5. H/W Troubleshooting
Please refer to the chapter 3 to assemble and disassemble.
LCD Related Troubles
1. The screen is dark or the colors of the screen are distorted. 1. Check the connection status - LCD Module LCD Cable - LCD Cable and Main board LCD Connector -LCDCable Re-fixationCableandConnector
2. Replace the LCD cable 3. Check if there is a part of the LCD that is bent or broken due to impact Replace the LCD when it has a fault
Defectivenessconfirmation
LCD Check
2. No picture appears on the screen. 1. Check the connection status - Check the connection of LCD cable of the LCD Module, the Main board and the LCD connector. - Checking the LCD cable connection Re-fixationCableandConnector
2. Check if the System LED of the main board is blinking.
3. Check if the memory module is out of order. 4. Check if the Power button can be normally pressed. Check operating or not
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4. Troubleshooting
3. Brightness in the LCD display could not be adjusted. 1. Check BIOS version information 2. Check if a proper nominal Adapter is used 3. Replace the LCD cable or check whether it has a fault. 4. The LCD blinks while the system is in operation. 1. Check if there is a magnetic body near the touch pad button or the system or check if there is an exterior defect to the LCD.
2. LCD cable. 3. Check if nominal output Adapter is used
Replace the new one. Use a correct Adapter after checking the Model 60W adapter : 19V/3.16A/60W 90W adapter : 19V/4.73A/60W
Main System Related Troubles
1. The system is not turned on. 1. Check if the AC adapter LED is lit and if the adapter is properly connected to the system. 2. If the AC adapter is not connected, check the charge status of the battery. . Even if the battery is charged, if the remaining battery charge is too low, the system may not be turned on. 3. Check if there are any alien substances in the Power switch. if have, change the LED. In case that only no. 1, 3, 5 in the LED is turned on: Replace Batteries due to its fault Check the battery level through the LED on/off condition by pressingthePushbuttonontheBatteryasthefigureshown below
4. Replace Sub board cable/Sub board 5. Replace Main Board. Check operating or not.
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2. the system does not boot or immediately turns off after being turned on. 1. Since this may be a short circuit in the system. Disconnect the power immediately, disassemble the system and check if there are any conducting alien objects such as a screw inside.
2. Check the connection status between the CPU and the RHE.
3. After reinstalling the memory module, check the status. If the problem is still occurred, it should be replaced and rechecked.,
Check if a short-circuit caused by a removable device such as the Memory module, the WLAN card, the HDD disk, etc. Reset the RTC Reset terminal beneath the Memory socket.
4. RTC Reset. 5. Replace Main Board. 3. The Express Card can't be inserted or removed. 1. As the insulator inside the Express Card Slot is rolled up, the card can't be inserted.
* How to reset the RTC Refer to Annex 1 Check if it is out of order.
Replace the Express Card Slot frame and check whether it has a fault.
4. Speaker doesn't work. 1. Check if the sound is muted after booting up Windows. Fn + F6 (Mute cancellation)
2. heckwhetherthedefaultplaybackdeviceisconfiguredas C Speaker from Control Panel > Sound. Change the default setting to the Speaker when setting up HDMI
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3. Check the connection status of the speaker cable and check if the speaker is out of order.
4. Check if there is a magnetic object near the speaker.
5. Replace Main Board. 5. I cannot hear sound through the headphones. 1. Check if the sound is muted after booting up Windows. Fn + F6 (Mute cancellation)
Check if it is out of order.
2. Check the status of driver setting in the audio driver (on the Device Manager) Checkwhetherthedefaultplaybackdeviceisconfiguredas Speaker from Control Panel > Sound. Change the default setting to the Speaker when setting up HDMI
3. Turn the volume up. Fn key volume adjustment.
4. Check the Headphone jack.
5. Replace Main Board.
Check if it is out of order.
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6. external/Internal microphone does not work normally. 1. Check the status of driver setting in the audio driver (on the Device Manager).Asthefigureshown,checkifrecordingdeviceissetup as MIC on this Control Panel > Sound.
2. Check the connection status of the MIC connector and check if the speaker is out of order.
3. Check the Mic jack.
4. Replace Main Board. 7. HDMI port does not operate properly. 1. Check the status of Audio and Video driver installation in Device Manager. 2. Check if Display Manager is installed correctly 3. If audio does not play only, check whether the default output device isconfiguredasHDMIfromControlPanel>Sound. 4. Replace Main Board. 5. There is no sound when connecting DVI to HDMI dongle. Use a HDMI to HDMI cable.
Check if it is out of order.
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8. HDD cannot be recognized. 1. Check if HDD is connected correctly. Check if there is some foreign bodies in connections. (Refer to disassembly and assembly chapter)
2. It is recognized on CMOS but a message, "Operating system Not found" appears while OS booting. There are two causes:
When HDD OS has been corrupted Format the HDD and reinstall the OS When HDD line item has a fault Replace the HDD *When replacing the HDD, refer to H/W Upgrade
9. Touch Pad does not work normally. 1. Check the connection status of Touch Pad FFC.
2. Check the connection status of Touch Pad I/F B'D. 3. Check the connection status of Touch Pad Module. 4. Replace Touch-Pad Module.
10. When the battery is not charged or the battery charging LED does not operate properly. 1. Check the rated voltage on the Adapter
2. Check if the battery has a fault 3. Replace Main Board.
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11. Camera does not work normally. 1. Check the connection status of camera cable between Camera module.
2. Check the connection status of camera cable between Main board.
3. Replace Camera module. 4. Replace Main Board. 12. LAN does not operate properly 1. Check the status of the LAN cable 2. Check if LAN driver is installed correctly 3. Replace Main Board. 13. WLAN does not operate properly 1. Check if WLAN driver is installed correctly. Update the driver when it does not operate properly 2. Check the connection of wireless LAN antenna cable. 3. Check by replacing the WLAN card There are only No. 1 and 2 Antenna on the Intel Shirley Peak 1x2 AGN, Atheros 802.11 BG card and there are No.1, 2 and 3 antenna on the Intel Shirley Peak 3x3 AGN card.
Check if it is out of order. Check if it is out of order.
If there is no problem found in the driver, check if the LAN jack has a fault. Check the status after replacing it.
4. Replace Main Board.
Check if it is out of order.
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14. Bluetooth does not work normally. 1. Check the connection status of Bluetooth cable between Main board.
2. Check the connection status of Bluetooth cable between Module..
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Other symptoms
1. When booting up the computer The "Invalid System Disk. Replace the Disk and then press any key" message appears. - This message may appear when the connected USB memory or CD media does not include bootable data. - The "Reboot and Select the proper Boot device or Insert a bootable media in the selected Boot device and press a key" message appears. - Check if the signal and power cables are properly connected to the hard disk drive. - Check if the hard disk drive is recognized in the BIOS SETUP. - The operating system on the hard disk drive is corrupted. Reinstall Windows. The "To enter BIOS SETUP, press . To continue, press ." message appears. - This may happen when the BIOS settings are different from the system environment. In this case, setup the BIOS according to your system environment. - Press to enter the BIOS SETUP. - Check if the date and time are correct in the BIOS SETUP. - Save the settings and restart the system. - This message may appear when the CMOS battery of the main board is completely discharged. In this case, replace the battery with a new one of the same type and set up the BIOS SETUP according to your system environment. - This may happen when Windows was not shut down normally. Therefore, shut down the system by selecting Start > Turn Off Computer. - This may happen when the system settings have been incompletely recognized. - Run Check Disk. - Check if the diskette is bootable. - This may happen when the booting priority of the device is low. In this case, change the booting priority in the BIOS SETUP.
The "CMOS Checksum error" message appears. Windows boots up in safe mode.
I cannot boot up the computer with a USB floppydriveorfromUSBmemory.
2. When shutting down the compute The computer is not shut down. - If Windows does not end normally, you can forcibly shut down the system by pressing the Power button. If the power-saving feature is activated on the Power button, press the Power button for more than 4 seconds to turn the computer off. If the computer is then turned on again, Check Disk is automatically run.
3. Windows / Screen Related Problems The computer hangs while running a program. - If the running program causes an error: In Windows XP, press the , and key combination, select the application program and click on End Task in the Applications tab of the [Windows Task Manager] window. In Windows 2000, press , and at the same time to open the [Close Program] window, select a `No response' item or a program with an error, and click End Task. - If Windows does not respond, restart the computer. Restart the computer by pressing the Power button. - Press the Switch LCD/CRT Monitor function key and check if the screen output is output to another display device. - Check if the hardware is out of order referring to the descriptions in the LCD related section of the Hardware Troubleshooting.
No picture is displayed on the external monitor.
4. CD/DVD-ROM related issues ODD is not recognized or does not operate properly. - Check if the ODD module is connected to the main board correctly. - Replace the ODD - Since some of viruses may affect the ODD operation, update the latest version of McAfee and check the scanning status. - Select `Eject' by clicking on the right of the mouse in My Computer > ODD device. - If there are still problems, insert a clip into the forced outlet located on the exterior ODD device and press it and try to eject it.
ODD cannot be ejected with 'Fn + Insert' key.
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5. Power-Saving Mode Related Trouble Connecting a USB device to the computer in standby mode. A USB device is not working normally when the computer returns from standby mode. The picture is displayed abnormally when the computer running the Command Prompt (MSDOS) enters standby mode and then returns from standby mode. - If a USB device is connected to the computer in standby mode, the screen may be abnormally displayed. You have to connect a USB device when the computer is operating normally. - In this case, separate and reconnect the USB device. - Press the and key combination to display the picture on the screen
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4-6. CPU Fan Control
Checking the Work of FAN
One can turn the fan on & off and check the fan's operational conditions without system disassembly.
Pic (1) Fan off status
Pic (2) Fan on status
*SAFC's default setting is "Fan off" or "Minimum Fan Speed". - Press "ON" in "ON/OFF Control" Fan is turned on to maximum fan speed. - Press "OFF" in "ON/OFF Control" Fan returns to default setting. * When the FAN is controlled with rpm control, the FAN input voltage measured at the Board level, the FAN measured after complete assemblyoftheSystemcanbedifferentiated.(TheFANiscontrolledatfixedrpm,soasflowingpressureconditionoftheFANcan modifyinputvoltagetokeepasthefixedrpmvalue.) [ Fan Voltage Measurement ] - Read Fan RPM indicated in SAFC. STEP 3 [ Fan Voltage Pass/Fail determination ] -fFanRPMsatisfies"rpmspec+/-10%",thenFantestis"PASS" I
STEP 1
STEP 2
STEP 4
Pic (3) Adjust FAN State
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MIAMI Fan control
Normal mode (AC, Battery) Fan step 1 2 3 4 5 Fan speed 2234 2508 2793 3072 3413
Silent mode (Etiquette mode) Fan step 1 2 3 Fan speed 2234 2508 3413
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4-7. Battery Use Time
Check the battery
Check if the battery is out of order referring to the Battery check program distributed to Service Centers and the `Battery Check Manual' included in the `Note-PC A/S Guide`. (1) Battery Check List Check the following check lists for systems where the battery use time is too short to diagnose problems.
(2) Criteria for each of the check lists.
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(3) Battery capacity Table
(4) Battery Check Program
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