Acer Travelmate 420 Service Guide
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Chapter 493 8Fh Determine number of ATA drives (optional) 90h Initialize hard-disk controllers 91h Initialize local-bus hard-disk controllers 92h Jump to UserPatch2 93h Build MPTABLE for multi-processor boards 95h Install CD ROM for boot 96h Clear huge ES segment register 97h Fixup Multi Processor table 98h 1-2 Search for option ROMs. One long, two short beeps on checksum failure. 99h Check for SMART drive (optional) 9Ah Shadow option ROMs 9Ch Set up Power Management 9Dh Initialize security engine (optional) 9Eh Enable hardware interrupts 9Fh Determine number of ATA and SCSI drives A0h Set time of day A2h Check key lock A4h Initialize Typematic rate A8h Erase F2 prompt AAh Scan for F2 key stroke ACh Enter SETUP AEh Clear Boot flag B0h Check for errors B2h POST done- prepare to boot operating system B4h 1 One short beep before boot B5h Terminate QuietBoot (optional) B6h Check password (optional) B9h Prepare Boot BAh Initialize DMI parameters BBh Initialize PnP Option ROMs BCh Clear parity checkers BDh Display MultiBoot menu BEh Clear screen (optional) BFh Check virus and backup reminders C0h Try to boot with INT 19 C1h Initialize POST Error Manager (PEM) C2h Initialize error logging C3h Initialize error display function C4h Initialize system error handler C5h PnPnd dual CMOS (optional) C6h Initialize notebook docking (optional) C7h Initialize notebook docking late C8h Force check (optional) C9h Extended checksum (optional) D2h Unknown interrupt CodeBeepsPOST Routine Description TM420.book Page 93 Monday, September 23, 2002 10:27 AM
94Chapter 4 CodeBeepsFor Boot Block in Flash ROM E0h Initialize the chipset E1h Initialize the bridge E2h Initialize the CPU E3h Initialize the system timer E4h Initialize system I/O E5h Check force recovery boot E6h Checksum BIOS ROM E7h Go to BIOS E8h Set Huge Segment E9h Initialize Multi Processor EAh Initialize OEM special code EBh Initialize PIC and DMA ECh Initialize Memory type EDh Initialize Memory size EEh Shadow Boot Block EFh System memory test F0h Initialize interrupt vectors F1h Initialize Run Time Clock F2h Initialize video F3h Initialize System Management Mode F4h 1 Output one beep before boot F5h Boot to Mini DOS F6h Clear Huge Segment F7h Boot to Full DOS TM420.book Page 94 Monday, September 23, 2002 10:27 AM
Chapter 495 Index of Flash BIOS Error Message Index of flashing BIOS Error Message using PHLASH.EXE. Error MessageAction in Sequence BIOS backup not supported in PLATFORM.BIN Current Platform.bin does not support BIOS backup. Please contact your vendor for latest platform.bin or remove BIOS backup File Open/Read/Close failed on PLATFORM.BIN Make sure that PLATFOR.BIN files is present and not damaged. Also check if there is enough space for rewriting. Unsupported PLATFORM.BIN file version Make sure the platform.bin is the correct version. Device table in PLATFORM.BIN has unsupported flash typeCurrent Flash ROM part is not supported in this platform.bin Part ID not found in table of supported parts Current Flash ROM part is not supported in this platform.bin Open/Read failed on BIOS ROM image file Make sure the BIOS ROM image is present, and not damaged. Copy BIOS ROM again. File Close failed on BIOS.ROM Make sure the BIOS ROM image is present, and not damaged. Copy BIOS ROM again. Cannot flash when Memory Managers (e.g. EMM386) are presentPlease boot to pure DOS without EMM386 is present in order to flash BIOS. Attempt to read flash memory ID failed System cannot read its Flash Part ID, please try again. If problem appears after second try, please contact your vendor. File does not contain the same BIOS part numberMake sure the BIOS ROM is for your platform. Write/Erase to flash memory failed During Flashing Process, writing and erasing memory failed. Make sure the ROM part that you flash is not damaged. New DMI string is too large Please add/mode=3 parameter after phlash.exe to flash DMI data structures. Could not find BCPDMI block in BISO ROM file image Remove d/mode=3 parameter after phlash.exe because there is no DMI structure present in your BIOS images. Cannot flash when Memory Managers (e.g. HIMEM) are presentPlease boot to a pure DOS without HIMEM.sys installed before you flash BIOS. BIOS ROM file may be corrupt (checksum not zero) Make sure the BIOS ROM is not damaged. BIOS ROM file size does not match flash part size Make sure the BIO ROM is not damaged and its size is the same as Flash part size. RTC does not present or does not function- can’t flash RTC is probably damaged. Check RTC battery and RTC time. TM420.book Page 95 Monday, September 23, 2002 10:27 AM
96Chapter 4 TM420.book Page 96 Monday, September 23, 2002 10:27 AM
Chapter 597 Top View 23-JP1 Speaker L connector 39-JP33 Inverter connector 20-JP3 VGA board to B connector 19-JP2 VGA board to B connector 24-JP4 Speaker R connector 22-JP6 SD card connector 21-JP5 Keyboard connector 28-JP12, JP32, JP39USB port connector 25-JP10 Audio out jack 26-JP9 Audio in jack 30-SW2 BT switch 36-JP11 MDC connector 34-JP7 Touchpad switch PCB Jumper and Connector Locations Chapter 5 SG_TM420_Ch5.fm Page 97 Thursday, September 26, 2002 9:45 AM
98Chapter 5 SW1 Settings (Lid switch) SW2 Settings Setting Function 1 NONE Function 2 STAND BY Function 3 HIBERNATE SW2Setting POWER BUTTON ON:SYSTEM ON OFF: SYSTEM OFF SG_TM420_Ch5.fm Page 98 Thursday, September 26, 2002 9:45 AM
Chapter 599 Bottom View 15-JP37 Docking connector 13-JP14 VGA port connector 9-JP21 PCMCIA connector 14-JP15 Printer port connector 1-U41 CPU socket 12-JP13 S video port 16-JP22 Main fan connector 17-PCN1 DC jack 4-PCN4 Battery connector 2-JP25 DDR connector 3-JP28 DDR connector 37-JP23 2nd fan connector 35-JP26 Battery connector 5-JP29 Module 6-JP24 Mini PCI connector 7-JP31 HDD connector 31 FIR 41 Wireless LED 33 Battery LED 27-JP34 RJ11 8-JP30 1394 connector 18-SW3 ME off 32-JP40 Memory stick connector 10-JP18 RJ45 SG_TM420_Ch5.fm Page 99 Thursday, September 26, 2002 9:45 AM
100Chapter 5 SG_TM420_Ch5.fm Page 100 Thursday, September 26, 2002 9:45 AM
Chapter 6101 This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of TravelMate 420 series products. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). Please note that WHEN ORDERING FRU PARTS, you should check the most up-to-date information available on your regional web or channel. For whatever reasons a part number change is made, it will not be noted on the printed Service Guide. For ACER AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines. NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it. FRU (Field Replaceable Unit) List Chapter 6 TM420.book Page 101 Monday, September 23, 2002 10:27 AM
102Chapter 6 Exploded Diagram THE SYSTEM TM420.book Page 102 Monday, September 23, 2002 10:27 AM