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NEC VERSA 6200MX - SERVICE, Service Manual

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NEC VERSA 6200MX - SERVICE Service Manual Download Page 6

iii

Contents

Preface.........................................................................................................................      xi

Abbreviation ................................................................................................................  xiii

Section 1   Technical Information

Hardware Overview—Front......................................................................................... 1-2

Liquid Crystal Display (LCD)................................................................................ 1-2

Power Button ....................................................................................................... 1-3

LCD Status Bar and Power Indicator .................................................................... 1-4

Status Icons ................................................................................................... 1-5

Keyboard .............................................................................................................. 1-6

NEC VersaGlide ................................................................................................... 1-6

Diskette Drive and the NEC VersaBay II ..............................................................1-7

Infrared (IR) Assembly.......................................................................................... 1-8

Hardware Overview—Right Side ................................................................................. 1-8

Hardware Overview—Left Side ................................................................................... 1-9

PC Card Slots ....................................................................................................... 1-10

Battery Compartment............................................................................................ 1-10

Audio Ports and Volume Control .......................................................................... 1-10

Hardware Overview—Rear Side .................................................................................. 1-11

Keyboard/Mouse Port ........................................................................................... 1-11

Parallel Port (LPT1).............................................................................................. 1-11

Expansion Port ..................................................................................................... 1-12

External Monitor (Video) Port ..............................................................................1-12

Serial Port (COM1) .............................................................................................. 1-12

Hardware Overview—Internal Components .................................................................1-12

Battery Pack ......................................................................................................... 1-12

Hard Disk Drive.................................................................................................... 1-12

Diskette Drive....................................................................................................... 1-13

10X CD-ROM Reader .......................................................................................... 1-13

CPU Board ........................................................................................................... 1-13

Sound Board......................................................................................................... 1-14

Graph Board ......................................................................................................... 1-15

I/O Board .............................................................................................................1-15

CMOS Battery......................................................................................................1-16

Bridge Battery ......................................................................................................1-16

Summary of Contents for VERSA 6200MX - SERVICE

Page 1: ... the Warranty Statement accompanying each product However actual performance of each such product is dependent upon factors such as system configuration customer data and operator control Since implementation by customers of each product may vary the suitability of specific product configurations and applications must be determined by the customer and is not warranted by NECCSD To allow for design...

Page 2: ...ance power consumption and system memory specifications Section 2 Setup and Operation takes the authorized service technician or dealer from unpacking to setup and operation The section includes a description of operating controls setting parameters and accessing the NECCSD bulletin board system BBS Section 3 Troubleshooting lists troubleshooting procedures as well as helpful servicing hints Secti...

Page 3: ...ledge DC direct current DIMM dual inline memory module DIP dual in line package DLAB Divisor Latch Address bit DMA direct memory access DMAC DMA controller DOS disk operating system DRAM dynamic RAM DTE data terminal equipment ECC error checking and correction ECP extended capabilities port EDO enhanced date out EDS error detecting system EGA Enhanced Graphics Adapter EMS Expanded Memory Specifica...

Page 4: ...er NC not connected NDP numeric data processor NMI Non maskable Interrupt ns nanosecond NSRC National Service Response Center PAL programmable array logic PC personal computer PCB printed circuit board PCI peripheral component interconnect PFP plastic flat package PIO parallel input output pixel picture element PJQFP plastic J lead quad flat pack PLCC plastic lead chip carrier PLL phase lock loop ...

Page 5: ...ort Center TTL transistor transistor logic tpi tracks per inch UART universal asynchronous receiver transmitter V volt Vdc volts direct current VESA Video Electronics Standards Association VFO variable frequency oscillator VGA Video Graphics Array VLSI very large scale integration VRAM virtual RAM W watt µf microfarad µPD microprocessor µs microsecond Ω ohm ...

Page 6: ...verview Right Side 1 8 Hardware Overview Left Side 1 9 PC Card Slots 1 10 Battery Compartment 1 10 Audio Ports and Volume Control 1 10 Hardware Overview Rear Side 1 11 Keyboard Mouse Port 1 11 Parallel Port LPT1 1 11 Expansion Port 1 12 External Monitor Video Port 1 12 Serial Port COM1 1 12 Hardware Overview Internal Components 1 12 Battery Pack 1 12 Hard Disk Drive 1 12 Diskette Drive 1 13 10X CD...

Page 7: ...t Controllers 1 22 Power Management Overview 1 23 System Power Management 1 24 Local Power Management 1 24 Plug and Play 1 25 Specifications 1 26 Section 2 Setup and Operation Unpacking the System 2 1 Hardware Setup 2 1 Cable Connections 2 3 Power Sources 2 4 Using the AC Adapter 2 4 Using the Main Battery Pack 2 5 Checking Battery Power Levels 2 5 What to Do When Battery Power Gets Low 2 6 Return...

Page 8: ...ST 2 21 POST Errors 2 22 Setup Utility 2 25 Accessing Setup 2 25 With an Error at POST 2 25 With No Errors at POST 2 25 Setup Utility Main Menu 2 25 How to Use Setup 2 26 Looking at Screens 2 26 Using Keys 2 27 Checking Setting System Parameters 2 27 Setup Menus 2 30 Advanced CMOS Setup 2 31 Power Management Setup Power Management Setup 2 31 Peripherals Setup 2 33 Other Setup Options 2 33 Using Se...

Page 9: ...sk Drive 4 5 Diskette Drive 4 7 Main Battery Pack Li Ion Type 4 8 Removing the Keyboard 4 10 Memory Upgrade 4 12 LCD and Top Cover 4 15 VersaGlide 4 18 LCD Status Bar 4 19 Bridge Battery CMOS Battery Buzzer 4 20 Sound Board 4 21 IR Assembly and Graph Board 4 21 CPU Assembly 4 23 I O Board 4 24 Illustrated Parts Breakdown 4 25 Service Information 4 29 Technical Support 4 29 Product Information 4 30...

Page 10: ...2 Powering on the System 2 2 2 3 Power and I O Connector Locations 2 3 2 4 NEC Versa AC Adapter 2 4 2 5 Removing the Cover 2 8 2 6 Removing the Battery 2 8 2 7 Inserting the Battery Pack 2 9 2 8 Replacing the Cover 2 9 2 9 Connecting the Car DC Adapter 2 11 2 10 Keyboard Panel LEDs and Controls 2 12 2 11 Status Bar Location 2 13 2 12 Dip Switch Location 2 15 2 13 Locating the Speaker Cap Screws 2 ...

Page 11: ... Screws 4 15 4 15 Location of Three Screws 4 16 4 16 Separating the Top Cover from Base Unit 4 17 4 17 Removing the VersaGlide 4 18 4 18 LCD Status Board 4 19 4 19 Removing Bridge Battery CMOS Battery and Buzzer 4 20 4 20 Removing the IR Assembly 4 22 4 21 Removing the CPU Board from the Graph Board 4 24 4 22 Removing the I O Board 4 25 4 23 NEC Versa Model 6200MX Illustrated Parts Breakdown 4 26 ...

Page 12: ... Connectors A 3 A 3 Keyboard Mouse Connectors A 3 A 4 Serial Port Connector Pin Assignments A 3 A 5 CRT Connector Pin Assignments A 4 A 6 Parallel Printer Pin Assignments A 4 A 7 Power Connector A 5 A 8 Hard Disk Drive Connector A 5 B 1 LCD Display Mode Setting 1024x768 TFT Color LCD and Simultaneous CRT Display Standard Video Mode B 1 B 2 Frequency Table of Standard Video Mode B 2 B 3 Expanded Vi...

Page 13: ...udes the NEC Versa 6200MX NOTE This service manual covers only the NEC Versa 6200MX model All figures in this manual reflect this model Figure 1 1 NEC Versa 6200MX Notebook This section of the manual provides system configuration information including an over view of hardware and interface components See the following table for a systems specific breakdown of hardware ...

Page 14: ...id Crystal Display LCD The LCD operates with the Chips Technologies 65550 VGA controller The controller supports XGA uses a 64 bit accelerator with a Peripheral Component Interconnect PCI interface The LCD also supports VESA timing The NEC Versa 6200MX LCD features the following 13 3 inch Extended Graphics Array XGA TFT high resolution active matrix XGA color display 0 264 mm dot pitch 18 bit digi...

Page 15: ...ion Fn F5 and Auto Setup power management settings See Section 2 Setup and Operation for information on using these settings In addition the automatic LCD status feature conserves the backlight When the LCD is closed the backlight shuts off automatically saving battery power Power Button Slide the power button to the right to power on and power off the computer The power button is a smart switch m...

Page 16: ...indicating that a device is accessed an operation performed or a power mode activated The graphic icons displayed on the LCD bar resemble either their physical characteristics or their primary function See the LCD Status Bar figure shown next and the descriptions that follow for the specific meaning of each icon The power indicator is located just above and to the left of the status bar The power ...

Page 17: ...st Life Diskette Drive appears when the NEC Versa writes data to or retrieves data from a diskette Hard Disk shows when the NEC Versa writes data to or retrieves data from the hard disk Caps Lock appears when Caps Lock is in effect Scroll Lock shows that Scroll Lock is in effect Num Lock appears when Num Lock is in effect Num Lock lets the user enter numbers for calculations via the numeric keypad...

Page 18: ...s the system s mouse It con trols the on screen pointer cursor To use the VersaGlide move your finger across the NEC VersaGlide pad and the cursor follows The buttons below the NEC VersaGlide al low the user to select or deselect menu items Tap and double tap are supported on the VersaGlide pad The PS 2 Microsoft mouse is the system s default pointing device until the user selects the NEC Setup ic...

Page 19: ...he VersaBay II slot on the front of the computer The VersaBay II expansion slot lets the user replace the standard diskette drive with the 10X CD ROM reader that also ships with the system In addition to the CD ROM reader the VersaBay II accepts NEC options including a second battery pack or an additional hard disk Figure 1 7 NEC VersaBay II Location ...

Page 20: ...bles NOTE Do not use the IR port directly under fluo rescent incandescent light HARDWARE OVERVIEW RIGHT SIDE Review the following section for a description of the hardware on the right side of the NEC Versa Figure 1 8 Right Side Features Kensington Lock Gives the user the option to add an optional Kensington Lock Hard Disk Drive Bay Cover Release Latch The hard disk drive bay contains the removabl...

Page 21: ...s port supports both NTSC and PAL signals NOTE The TV Out port does not support the SECAM signal used in some countries For proper display set the video mode to 640 x 480 AC Power Port Use the power jack to attach the NEC Versa to a DC power source such as the AC adapter or the optional DC car adapter HARDWARE OVERVIEW LEFT SIDE Review the following section for a description of the hardware on the...

Page 22: ...d of time the battery cells are drained causing battery pack to deteriorate The battery bay contains an eight cell Lithium Ion Li Ion battery that lets you run your system on DC power Audio Ports and Volume Control Audio ports let you plug in external audio devices and the volume controls gives you con trol over speaker volume Volume Control Allows you to control the speaker volume Headphones Let ...

Page 23: ...ime A serial mouse is not supported Parallel Port LPT1 The 25 pin printer port provides a parallel interface to which you can connect a parallel printer or pocket network adapter Use this port to connect a parallel printer or other parallel device The port is IEEE 1284 compatible It supports bi directional AT mode Enhanced Capabilities Port ECP mode Enhanced Parallel Port EPP mode 365SL compatible...

Page 24: ...ource The battery pack installs in the compartment next to the VersaBay II on the bottom of the NEC Versa The battery stores 14 4 volts with a 2600 mAh capacity The battery pack powers the NEC Versa for approximately 2 to 4 hours In addition the user detects how much battery power is available via the percentage displayed on the status bar or accessing the Power Gauge utility When battery power is...

Page 25: ...ROM technology It installs in the front of the system in the VersaBay II slot The CD ROM reader is assigned to the next available drive letter The CD ROM reader operates at different speeds depending on whether the CD in use contains data or music This improves video and sound quality CPU Board The CPU board G8YAL is a rectangular shaped board located between the main board and I O board The CPU b...

Page 26: ...It is situated on top of the main board The sound board integrates the following features ESS Technology Plug and Play support ES1878 Integrated Music Synthesis ESFM and Stereo Digital to Analog Converter DAC FM Synthesizer 16 bit Stereo CODEC 4 0KHz to 44 1KHz Sampling Rate 7 Channel Mixer 3D Audio Effects Chip ES938 Spatializer 3D Stereo Sound Figure 1 12 Sound Board Layout ...

Page 27: ...connectors These are identified in the diagram shown in Appendix A Figure 1 13 Graph Board Layout I O Board The system I O board G8YAP contains peripheral subsystems including serial parallel and video ports and charger It is located underneath the main board Refer to Appendix A for a list of connectors Figure 1 14 I O Board Layout ...

Page 28: ...the bridge battery when the system is powered on or off The bridge battery stores 7 2 Volts 70 mAH SYSTEM MEMORY The Graph board provides 32 MB 3 3 V SO DIMM of standard RAM Optional SO DIMMs with a value of 16 32 or 64 MB can be added to increase system memory up to a maximum of 128 MB 70 ns 3 3V EDO access In addition 256 KB of read only memory ROM 1 x 28F020 enables the system BIOS to be flashe...

Page 29: ...nd other devices requiring ROMs 0D0000 0DFFFFh 64 KB Used by Adapter ROMs i e network controllers hard disk controllers SCSI host adapters 0E0000 0EFFFFh 64 KB Used by System ROM adapters i e network controllers with boot capability 0F0000h 0FFFFFh 64 KB System AMIBIOS includes Setup and hard disk drive utilities 100000h 1FFFFFF 32 MB Built in Extended Memory 2000000 5FFFFFF 64 MB Extended Memory ...

Page 30: ... or PS 2 technology Enhanced mode enables high speed data transmission to occur using either the unidirectional or bidirectional modes The default parallel port address is 378h and the interrupt level is IRQ07 Pin locations for the parallel interface are listed in Appendix A SERIAL INTERFACE The RS 232C serial port is a 9 pin connector on the system s rear panel The serial port consists of a 16550...

Page 31: ...d Controller 100 pin PQFP ES938 ESS Technologies 3D Sound Controller 28 pin SSOP Intel Pentium P55CLM Microprocessor The 166 MHz Intel Pentium microprocessor with MMX technology used in the NEC Versa series computer is built on Intel s advanced 2 5V BiCMOS silicon technology The CPU has on chip dual processing a local multiprocessor interrupt controller and power man agement features NEC adopted t...

Page 32: ... indicator panel diskette drive hard drive communication devices and peripherals The system BIOS also contains Auto Setup and provides VGA controller support The ROM BIOS is copied into RAM shadowing for optimum performance The ROM BIOS contains both the system and video BIOS The system BIOS is located in the upper portion of the device video BIOS is located in the lower portion System BIOS is loc...

Page 33: ...ceive the data The controller automatically adds an even parity bit to the data sent and waits for a response The device must acknowledge that the data was successfully received by sending a response to the controller for each byte of data received PC CardBus Controller The Texas Instruments PC1131 controller interfaces with the PCI bus PC CardBus socket and configuration registers to provide comp...

Page 34: ...TER SLAVE PRIORITY NAME DEVICE Master 0 IRQ00 Counter 0 Timer 1 Master 1 IRQ01 Keyboard Master 2 IRQ02 INT output from controller 2 Slave 3 IRQ08 Real time Clock Slave 4 IRQ09 Infrared Port Slave 5 IRQ10 Reserved CardBus controller Slave 6 IRQ11 Reserved CardBus controller Slave 7 IRQ12 NEC VersaGlide Mouse Slave 8 IRQ13 Math Coprocessor built into CPU Slave 9 IRQ14 Hard Disk Controller 1 Slave 10...

Page 35: ...de input for the specified timeout Hard Disk 2 minute Hard disk motor stops when hard disk is not accessed for specified timeout Standby 4 minute System enters Standby mode after total system inactivity You can change the timeout period for any of the devices using Setup See Section 2 for Setup utility procedures Use the FnF7 key combination to set the power management level The faucet icon change...

Page 36: ...uspend button to enter Suspend mode when you need to be away from the system for a short period of time and want to return to where you left off In addition to quickly activate the Save to File feature press the Fn and Suspend button simultaneously This shuts down the system and saves the current working data to a file Local Power Management Use Auto Setup to select one of four power management se...

Page 37: ...NEC Versa features a Plug and Play functionality Plug and Play is the ability of the BIOS and or operating system to dynamically assign system resources to a newly installed device without user intervention For example you can suspend the system add an external keyboard mouse or monitor and when you resume working the NEC Versa recognizes the devices that have been con nected to it Similarly you c...

Page 38: ...rt up to two optional cards oriented one on top of the other One 3 1 2 inch x 0 75 inch high slot front access for standard 1 44 diskette drive 10X CD ROM reader optional hard disk drive or Li Ion battery Power 100 to 240 Volts AC at 50 or 60 Hz Output Voltage 18 5 V DC 2 45 A 45 5 W Battery Pack Weight 85 lb 38 Kg Voltage 14 4 V Capacity 2600 mAH Battery Life Approximately 2 to 4 hours depending ...

Page 39: ...000 or optional FDD Connector Kit Mono MIC IN 1 port 3 pin Mini Pin Jack Stereo Headphones 1 port 3 pin Mini Pin Jack 5 watts per channel Stereo Line In 1 port 3 pin Mini Pin Jack Stereo Line Out 1 port 3 pin Mini Pin Jack TV Out 1 port RCA Jack DC In 1 port for AC adapter cable Memory System Memory 32 MB high speed EDO access 70 ns Optional Two DIMM sockets for base and expansion memory under the...

Page 40: ...use Keyboard Built in 85 key keyboard with 12 programmable function keys embedded numeric keypad and special function control keys dedicated screen control keys and inverted T cursor keys IBM enhanced 101 102 key compatible keyboard Software Standard Windows for Workgroups version 3 11 or Window 95 McAfee VirusScan McAfee WebScan Official Airline Guide OAG Netscape Navigator Dial Up Edition LapLin...

Page 41: ...n 1 29 Table 1 7 Specifications ITEM SPECIFICATION Administrative Compliance U S FCC UL Canada CSA DOC Germany VDE TUV CE Australia AS for AC adapter only Other Compliance PC95 Compliance Energy Star VESA PnP VESA PnP ISA ...

Page 42: ...hipping carton on a sturdy surface and carefully unpack the system The carton contents include the system CD ROM reader AC adapter AC power cord battery software CDs and user documentation HARDWARE SETUP When connecting power and signal cables do the following Note that the power switch turns on or off Slide the switch right to turn it on slide the switch again to turn it off NOTE Always plug the ...

Page 43: ...ved CSA certified in Canada type SPT 2 18 AWG 2 conductor cord with a permanently attached NEMA type 5 15P plug at one end and a permanently attached connector body on the other Cord length may not exceed 15 feet Outside the U S and Canada the cord must be rated for at least 250VAC at 10 amps and must indicate international safety agency approval The plug must be a type appropriate for the country...

Page 44: ...ments see Appendix A Table 2 1 I O Connector Descriptions I O CONNECTOR FUNCTION IR Port The infrared port allows the user to transfer files between the NEC Versa and an IR equipped computer or print to an IR equipped printer without using cables Keyboard Mouse Port Connects to a PS 2 style mouse or a 101 key external PS 2 style keyboard Parallel Port Connects to a 25 pin parallel device Expansion...

Page 45: ...t came with the NEC Versa to run the computer on alternating current AC power or to recharge the battery pack Use the AC adapter when ever a wall outlet is nearby WARNING Do not attempt to disassemble the AC adapter The AC adapter has no user replaceable or serviceable parts inside Dangerous voltage in the AC adapter can cause serious per sonal injury or death The AC adapter is intended for use wi...

Page 46: ...e battery pack is installed one battery icon appears If two batteries are installed two battery packs appear A blinking battery icon indicates that the battery is charging A fast blinking battery icon occurs when installing a new battery during unknown battery status when there is a problem with the battery Similarly read the percentages that appear next to the battery icons to find out exactly ho...

Page 47: ...log for more information Returning the Battery to Full Operation To return the battery to its normal state try the following remove and then reinstall the battery reinstall the battery in the NEC Versa discharge the battery then fully recharge the battery to 100 if the battery in use was in storage for an extended period of time When to Change the Battery The following symptoms indicate that batte...

Page 48: ... discolored overheats or emits a foul odor Keep the battery dry and away from water Keep metal objects away from battery terminals Metal objects in contact with the terminals can cause a short circuit and damage If the battery leaks onto skin or clothing wash the area immediately Battery fluid can cause a skin rash and damage fabric If battery fluid gets in eyes DO NOT rub rinse with clear water i...

Page 49: ...battery cover latch and slide the battery bay cover away from the system Figure 2 5 Removing the Cover 4 Place a finger in the notch on the battery and lift the battery out of the system The notch has an arrow next to it CAUTION Always lift the battery out of the system by the notch Fail ure to do so can damage the battery terminals Figure 2 6 Removing the Battery ...

Page 50: ...s Fit the battery alignment groove over the tab inside the bay Lower the battery into the battery compartment pressing gently to secure the terminal connections Figure 2 7 Inserting the Battery Pack 6 Replace the battery bay cover as follows Align the tabs on the bay cover with the grooves on the system chassis Lower the cover onto the bay and slide it into place Figure 2 8 Replacing the Cover 7 T...

Page 51: ... odor Keep the battery dry and away from water Keep metal objects away from battery terminals Metal objects in contact with the terminals can cause a short circuit and damage If the battery leaks If the battery leaks onto skin or clothing wash the area immediately with clean water Battery fluid can cause a skin rash and damage fabric If battery fluid gets into eyes DO NOT rub rinse with clear wate...

Page 52: ...ile on the road it is important to be aware of the simple things you can do to extend the life of the system s main battery One way is to keep the LCD backlight setting to Standard instead of Full You can toggle between these two settings by pressing the function keys Fn F5 Or slide the backlight control to a dimmer level Using the DC Car Adapter Another way to power the NEC Versa is via car batte...

Page 53: ... is activated Power LED Lights green when the computer is powered on Lights amber and blinks at low battery levels Suspend Resume Button Press the button for Suspend mode press again to resume active mode Power Button Turns the system on when pushed to the right Turns the system off when pushed to the right again Hard Disk Drive Bay Release Latch Lift latch to remove the hard disk drive installed ...

Page 54: ...a system AC Port Use the power jack to attach the NEC Versa to an AC or DC power source LCD Status Bar The NEC Versa status bar is located in the upper center of the keyboard panel Figure 2 11 shows the status bar Figure 2 11 Status Bar Location Status Icons The NEC Versa uses ten icons to let the user determine system status as follows Suspend appears when the system is in Suspend mode Power Mana...

Page 55: ...e system parameters temporarily Hot Key functions operate until the system is turned off or reset Table 2 3 Fn Key Operations KEY FUNCTION Fn F2 Highlight toggles the contrast between standard and full Fn F3 LCD CRT toggles between LCD CRT TV out and simultaneous modes LCD and CRT Fn F5 Backlight toggles the backlight between standard and full Fn F6 Speaker Volume toggles speaker volume between hi...

Page 56: ...witch setting and its function Figure 2 12 Dip Switch Location NOTE Switches 3 4 and 6 are reserved for NEC factory use only Switch 5 is not used Switch 1 BIOS Flash Protection Switch The default setting is ON Change the setting to OFF when you update your system s basic input output system or BIOS flash memory See Updating the System BIOS to complete this procedure Switch 2 Password Override Swit...

Page 57: ... update the BIOS if NEC makes significant improvements or fixes to the current system BIOS Your authorized NEC dealer or Technical Support Services representa tive can help you determine this If you are informed that the default BIOS needs an upgrade to receive a copy of the BUD contact the NEC Versa Diskette Fulfillment Center at 800 842 6446 or NEC Customer Service and Support at 800 632 4525 Fa...

Page 58: ...and that no peripheral devices are attached 2 Locate and remove the two Phillips head screws on the bottom of the Versa 6200MX that secure the speaker caps Put the screws in a safe place for reassembly Figure 2 13 Locating the Speaker Cap Screws 3 Turn the NEC Versa 6200MX over and open the LCD panel Figure 2 14 Removing the Speaker Caps ...

Page 59: ... remove them 5 Gently lift up the edge of the keyboard nearest the LCD and slide the keyboard towards the LCD screen to release the tabs that secure it CAUTION Be careful not to disconnect the keyboard or keyboard cable entirely from the system Figure 2 15 Lifting the Keyboard Figure 2 16 Positioning the Keyboard ...

Page 60: ...ng See Setting Switches for switch functions and settings CAUTION Never use a lead pencil ball point pen or ink pen to change switch settings Figure 2 17 Dip Switches NOTE The system memory expansion slots are also located underneath the keyboard Therefore if you need install DIMM modules you might want to do so while the system is already disas sembled 8 Reassemble the system as follows Lift up t...

Page 61: ... BIOS update 1 Make sure that the computer is operating under AC power and that the power is off Insert the BIOS Update diskette into diskette drive A 2 Power on the computer with the diskette in drive A The computer boots and automatically loads the utility A message similar to the following appears WARNING The BIOS Update Procedure is about to begin press ENTER to continue To abort remove the di...

Page 62: ...he working status of components through an automatic power on self test POST The test checks the system configuration for any discrepancies One beep means that POST is successful If any problems in data transfer or hardware exist an error message appears If the message is a CMOS settings wrong message press F2 to enter the Setup utility Use the Arrow Keys to review the settings and make any necess...

Page 63: ...ny key Diskette boot failure Insert a bootable disk in drive A and press any other key Non system disk or disk error Replace and press any key when ready Remove the diskette from drive A and press any key to start the system from the hard disk Or insert a bootable disk in drive A and press any key Operating System Not Found or C drive failure Press F2 to start Setup Change the hard disk type to th...

Page 64: ... C drive error or failure Press F2 to start Setup Exit and save to update the parameters Check to see if the hard disk connector is seated properly If there is still a problem the hard disk might need repair Hard Disk controller failure Press F2 to start Setup Exit and save to update the parameters Check to see if the hard disk connector is seated properly The hard disk controller does not work an...

Page 65: ...y on the motherboard is faulty 2 Parity Error Parity error in the first 64 KB of memory 3 Base 64 KB Memory Failure Memory failure in the first 64 KB 4 Timer Not Operational Memory failure in the first 64 KB of memory or Timer 1 on the motherboard is not functioning 5 Processor Error The CPU on the motherboard generated an error 6 8042 Gate A20 Failure The keyboard controller 8042 may be bad The B...

Page 66: ...he Setup utility if the system detects an error during POST it prompts you with double beep sound and a message Press F1 to resume If you press F1 the system enters Setup automatically With No Errors at POST To enter Setup when no error message is displayed during POST press F2 when the prompt appears Setup Utility Main Menu After you press F2 the system displays the Setup Main Menu screen similar...

Page 67: ...996 American Megatrends Inc All Rights Reserved Plug and Play Aware O S NumLock at BOOT Keyboard Auto repeat Rate Keyboard Auto repeat Delay Password Check Available Options BootUp Sequence A C Auto Off 30 sec 1 2 sec Setup ESC Exit PgUp PgDn Modify F3 F4 Color Sel C A A C Figure 2 20 Advanced CMOS Setup Menu Parameters The left part of the screen This area lists parameters and their current setti...

Page 68: ...me Tab moves the cursor from hour to minute to second Esc In the Main Menu screen press Esc to display the Quit without saving prompt Also press Esc to exit Setup menus and return to the Main Menu F3 F4 Changes the screen color Checking Setting System Parameters See the following table for a list of parameters their factory default settings and alternate settings A description of each setting foll...

Page 69: ...d Auto Auto Enabled Auto Auto No 640 KB 31744 KB Not installed 1 2 MB 5 25 or 1 44 MB 3 5 Disabled Not installed BIOS Defined User Defined CD ROM Not installed BIOS Defined User Defined CD ROM Disabled Not installed BIOS Defined User Defined CD ROM Not installed BIOS Defined User Defined CD ROM Yes automatically detected Advanced CMOS Setup Bootup Sequence Plug and Play Aware O S NumLock at Boot K...

Page 70: ...Standard Auto Standard Off Off Off Off On Set time in 5 min increments when wake up is set to On Peripheral Setup Serial Port Parallel Port Parallel Mode IR Serial Port IR Serial Mode TV Mode Sound Sound IRQ SB compatible DMA Full Duplex Mode DMA Docking Station MPU 401 Docking Station Joystick Reconfigure PnP OS Setup Reconfigure PnP OS Setup ECP Reconfigure PnP OS Setup SIR NTSC Reconfigure N A ...

Page 71: ...te and second in hr min sec 24 hour format To set the time use the Tab or arrow keys to move from field to field Use the PgUp or PgDn key to change the numbers within each field Diskette Drives The diskette drive parameters let you check and change set tings for your diskette drives Internal Hard Disk Drive This field allows you to enable or disable the internal hard drive in your system You can a...

Page 72: ...Setup menu lets you balance high performance and energy conser vation using parameters including the following NOTE Some operating systems such as Windows for Workgroups and Windows 95 have their own power management software that overrides CMOS settings In this case be sure to set your desired power management settings accordingly Power Management Under AC Specifies whether to enable power manage...

Page 73: ...etup or ap plies default timeouts All your data is automatically recovered from where you left off when you Resume In automatic STF after 30 minutes in Suspend mode the current file is automati cally saved to a special file on the hard disk and the system shuts down To re sume you must press the power button The system reads the saved file and sets up your system accordingly If Auto Save to File i...

Page 74: ... or reassign the parallel port and select a parallel port mode IR Serial Port IR Serial Mode Allows you to disable or reassign the IR serial port and select an IR mode TV Out Port Specifies the signal type NTSC or PAL used by the TV being connected to the TV Out port Sound Sound IRQ Sound SB Compatible DMA Full Duplex Mode DMA Se lects the sound parameter to user defined disabled or reconfigure Ch...

Page 75: ...working files For example if you are called away from your NEC Versa and Suspend mode is selected with auto Save to File active your system automatically goes into Suspend mode After 30 minutes if you don t return your working environment is saved to a special file on your hard disk There are two ways to set your NEC Versa s STF feature One method is via the Setup utility Select Power Management f...

Page 76: ...so check that the AC adapter is plugged into a properly grounded AC power outlet If using the battery as the main power source check if the battery pack is the right type is charged and is inserted correctly Check the I O board of the system Is it inserted into the main board connector properly Otherwise replace the I O board Data on the LCD is unreadable Adjust the brightness control on the right...

Page 77: ... Replace the Graph board or I O board Diskette drive does not work Check if diskette drive cable is connected properly Check if the diskette drive works in the external FDD Connector Kit or with the PortBar 6000 Check diskette type if correct and not faulty Replace the diskette drive Replace the I O board Hard disk drive malfunction Check if hard disk drive is set properly on CMOS SETUP Check driv...

Page 78: ...ed Check VersaGlide cable inside the system if it is inserted properly Remove VersaGlide and clean it Check the keyboard controller chip for any cold or loose soldering Replace the Graph board Serial device does not work Check if mouse driver is installed properly Check if serial device is connected properly Replace serial device Check the I O controller chip on the main board for any cold or loos...

Page 79: ...on and the Power LED activated Are the LCD display controls set to the minimum level Is the LCD display switched to the external monitor Are all cables and devices connected properly and securely Are all needed device drivers installed properly Have you checked the AUTOEXEC BAT and CONFIG SYS files for errors Is the Suspend Mode activated on the LCD Status Bar Press any key or press the Power swit...

Page 80: ...ltage is present inside the system unit and LCD even after the system is turned off Cleaning the Notebook s Exterior Use the steps below to clean the outer surface of the system 1 Power off the system and remove all battery packs Unplug all cables connected to the system 2 Wipe the outside of the system unit keyboard and display with a soft clean cloth Remove stains with a damp almost dry cloth Us...

Page 81: ... head cleaning diskette in the disk drive to prolong the life of the drive and to help maintain data integrity Here are some maintenance procedures to use when servicing a hard disk Always back up the data files from the hard disk Run a virus detecting program to check for possible virus infected areas on the hard disk Use the preinstalled ScanDisk program to correct any errors found in the direc ...

Page 82: ... not short the battery leads or connect the battery with reversed polarity Never attempt to charge the battery packs in any way other than as described in this manual and the User s Guide Always charge the battery packs as soon as possible after a low battery indication Maintaining the LCD Quality When it comes to screen problems heat plays a big part After a good working session the typical routi...

Page 83: ...nce SEQUENCE PART SEE PAGE 1 Hard Disk Drive 4 5 2 Diskette Drive installed in VersaBay II 4 7 3 Main Battery Pack Li Ion type 4 8 4 Keyboard 4 10 5 Memory Upgrade 4 12 6 LCD and Top Cover 4 15 7 VersaGlide 4 18 8 LCD Status Bar 4 19 9 Buzzer CMOS Battery Bridge Battery 4 20 10 Sound Board 4 21 11 IR Assembly and Graph Board 4 21 12 CPU Board 4 23 13 I O Board 4 24 When disassembling the system un...

Page 84: ... the VersaBay II Check the top of the hard drive for a blue dot If the drive case has the blue dot on it you can use the drive in either the drive bay or the VersaBay II 1 Check that the NEC Versa power is off 2 Turn the NEC Versa upside down with the front of the unit facing you 3 Remove the drive cover as follows Locate the drive cover screw Remove screw Push the drive cover release latch up whi...

Page 85: ...est to the connector While maintaining pressure slide the drive towards the front of the system CAUTION Do not lift the drive out of the system before re leasing it from the system connector Doing so can damage the connectors Once the drive is disconnected lift the drive up and out of the system Figure 4 2 Removing the Hard Disk Drive ...

Page 86: ...acing you 3 Locate the VersaBay II release latches on the bottom of the unit Figure 4 3 VersaBay II Release Latches 1 Slide the front latch towards the hard disk drive side of the system and hold it 2 Push the middle latch towards you until the diskette drive pops part way out of the unit 3 Continue to hold the latch near the front of the system to the left and pull the diskette drive the rest of ...

Page 87: ... Type Remove the main battery pack as follows NOTE Use Li Ion batteries in the NEC Versa computer for which they are designed Also in stalling another manufacturer s battery or using a combination of very old and new batteries can deteriorate battery and equipment performance 1 Save your files exit Windows and press the Suspend button or turn off system power 2 Close the LCD and turn the system ov...

Page 88: ...way from the system Figure 4 5 Removing the Battery Compartment Cover 1 Place a finger in the notch on the battery and lift the battery out of the system NOTE Always lift the battery out of the system by the notch Failure to do so can damage the bat tery terminals Figure 4 6 Removing the Battery ...

Page 89: ...llips head screws on the bottom of the NEC Versa 6200MX that secure the speaker caps Put the screws in a safe place for reassembly Figure 4 7 Locating the Speaker Cap Screws 1 Turn the NEC Versa 6200MX over and open the LCD panel 2 Locate the two speaker caps slide each one toward the outside edge of the sys tem and remove it Figure 4 8 Removing the Speaker Caps ...

Page 90: ...oard toward the LCD screen to release the tabs that secure it CAUTION Be careful not to disconnect the keyboard or keyboard cable entirely from the system Figure 4 9 Lifting Up the Keyboard 1 Carefully turn over the keyboard and place it face down on the VersaGlide Be sure to disconnect the keyboard cable ...

Page 91: ... 32 48 64 96 and 128 MB depending on which two of the listed dual inline memory modules DIMM are used 16 MB memory module 32 MB memory module 64 MB memory module The following table shows the memory expansion possibilities Table 4 2 System RAM Expansion BASE MEMORY EXPANSION MEMORY TOTAL MEMORY 32 MB 16 MB 48 MB 32 MB 32 MB 64 MB 32 MB 64 MB 96 MB 64 MB 64 MB 128 MB Replacing the provided 32 MB DI...

Page 92: ...n the DIMM Figure 4 11 DIMM Features 3 Locate the DIMM expansion port 4 Hold the DIMM at a 45 degree angle and align the DIMM contacts with the socket in the system Push the connector into the socket 5 Press down on the edge of the DIMM opposite the contacts until the lock tabs on the sides snap into place securing the module Figure 4 12 Installing the DIMM ...

Page 93: ...ows Press the locking tabs away from the sides of the DIMM and hold while gently lifting on the edge of the DIMM When the edge of the DIMM pops up and is at approximately a 60 de gree pull the DIMM from the socket Figure 4 13 Removing an installed DIMM NOTE The system switches are also located under neath the keyboard ...

Page 94: ...er over with the VersaBay II slot facing towards you Locate the 10 screws that secure the bottom base unit cover In all there are 4 long screws 6 short screws Figure 4 14 Removing the Bottom Base Screws Remove the remaining screws two of the ten were removed when removing the keyboard Turn the laptop over and remove three screws There are 2 medium screws and 1 short screw ...

Page 95: ...ully detach the bottom base unit cover from the top cover To lift off the top cover place your left hand in the PC cards slot bay and pull the left corner of the system upward with your right hand Be careful not to lift the cover up too far until you have disconnected the LCD cables see the next step ...

Page 96: ...eld Service Guidelines 17 1 Disconnect the LCD cables from connector P6 on the Graph board Also discon nect the speaker cables P17 and VersaGlide cables P14 Figure 4 16 Separating Top Cover from Base Unit ...

Page 97: ...18 Field Service Guidelines VersaGlide Remove three screws on the underside of the top cover to remove the VersaGlide Figure 4 17 Removing the VersaGlide ...

Page 98: ...over keyboard and the power button as previously described 2 Remove the LCD status bar as follows Locate the ribbon cable that attaches to the Graph board via connector P9 Use the tip of a screwdriver and carefully open the connector tabs Lift up the LCD status bar Figure 4 18 LCD Status Bar ...

Page 99: ...dge battery disconnect the cable from connector P11 on the Graph board and remove the bridge battery 3 Remove the CMOS battery as follows Locate the cable on the CMOS battery Disconnect the cable from connector P13 on the Graph board and lift the CMOS battery out of the base unit 4 To remove the buzzer disconnect the buzzer cable from P12 on the Graph board and remove the buzzer Figure 4 19 Removi...

Page 100: ...SEMBLY AND GRAPH BOARD Remove the remove the IR assembly and Graph board as follows 1 Remove the following as previously described LCD top cover keyboard LCD status bar bridge battery CMOS battery and buzzer 2 Disconnect the cable from connector P10 and remove screw securing IR board and lift out the IR assembly 3 Remove the remaining screw from the main board as shown in the following fig ure Gen...

Page 101: ...22 Field Service Guidelines Figure 4 20 Removing IR Assembly and Graph Board ...

Page 102: ... IR cable from the Graph board 3 Disconnect the fan cable from connector P18 4 Remove the screw that secures the CPU assembly to the base unit 5 Gently lift the CPU assembly out of connectors P3 and P4 on the Graph board Figure 4 21 Removing the CPU Board from the Graph Board I O Board Remove the I O board as follows 1 Remove the following as previously described LCD top cover keyboard LCD status ...

Page 103: ... the spacers and PC card holder Figure 4 22 Removing the I O Board ILLUSTRATED PARTS BREAKDOWN The next section contains the NEC part numbers and illustrated parts breakdown IPB fig ure for the NEC Versa The following figure shows the system exploded view diagram or IPB Table 4 3 lists field replaceable parts and corresponding part numbers Review the entire exploded diagram to see how each part is...

Page 104: ...Field Service Guidelines 25 Figure 4 23 NEC Versa Model 6200MX Illustrated Parts Breakdown ...

Page 105: ... 026239 001C 22 Graph Board G8YAN 158 026240 000C 23 LCD Indicator 808 872191 005A 25 Sound Board Assembly G8YAQ 158 026242 001B 27 Fan 808 876290 002A 29 VersaGlide Assembly 808 874649 201A 30 Speaker Assembly 808 876317 002A 33 Speaker Cover left 136 628885 101A 35 Speaker Cover right 136 628886 101A 37 Keyboard U S U K 128WC 012 GERM 128WC 012 AUSTRALIA 128WC 012 Europe 128WC 012 808 897300 001...

Page 106: ...2091 001A LCD Assembly Cover XVGA 13 3 136 241396 001A LCD Cover XVGA 13 3 Assembly 158 057466 000 LCD Top Cover Keyboard Cover Assembly 136 241397 001A LCD Panel LCD 272 13 3 808 876534 001A Logo Badge Versa 6200MX 158 030781 018 Logo Badge NEC 158 032256 000 Main Battery 804 021248 001A Memory DIMM 32 MB Hitachi HB565W464DB 6BL 802 141177 606A Microphone with Cable Assembly 808 876316 001A Modem...

Page 107: ...tions sales leads response to ads NSRC National Service Response Center questions other than products and spare parts Service Contracts NECCSD FaxFlashTM Service automated service that sends the latest information about NEC products to the fax machine 24 hours a day In U S and Canada call 1 888 329 0088 Outside U S 1 508 635 6090 TECHNICAL SUPPORT NECCSD Technical Support Center provides an E mail...

Page 108: ... numbers are available Current catalogs include Catalog 1 Monitors Graphics Boards and Data Projector Products Catalog 2 CD ROM Hardware and Software Printers and Disk Drive Products Catalog 3 Laptop Desktop and Server Computer Products Catalog 9 Price and Configuration Index ORDERING INFORMATION FROM FaxFlash Order information from FaxFlash as follows 1 Check that the fax machine is on 2 Locate t...

Page 109: ...r 011 your country code area code or city code then your fax number The information requested will be sent automatically to your fax machine If Fax Flash attempts to send the second order before the first order is completed the order could be canceled After three tries FaxFlash assumes that the line is busy ...

Page 110: ...dix A Connector Locations and Pin Assignments Figure A 1 and Table A 1 show Graph board connectors The remaining tables provide pin assignments for additional system connectors Figure A 1 Graph Board Layout ...

Page 111: ...SCRIPTION P6 LCD Screen P7 P8 DIMM Connectors P9 LCD Status Bar P10 Infrared Assembly Connector P11 Bridge Battery P12 Buzzer P13 CMOS Battery P14 VersaGlide Assembly Connector P15 Keyboard P17 Speaker Connector P24 Sound Board SW1 Power Switch SW2 Suspend Switch Figure A 2 I O Board Layout ...

Page 112: ...t Connector P8 External Monitor P9 Expansion Connector P10 Parallel Port P11 PS 2 Keyboard Mouse Connector P12 AC Adapter Connector P13 TV Output Jack Table A 3 Keyboard Mouse Connectors PIN SIGNAL 1 Keyboard Data 2 Mouse Data 3 Ground 4 5V 5 Keyboard Clock 6 Mouse Clock Table A 4 Serial Port Connector Pin Assignments PIN SIGNAL 1 Data Carrier 2 Receive Data 3 Transmit Data 4 Data Terminal Ready 5...

Page 113: ...round 7 Ground 8 Ground 9 5V PnP VESA Vcc 10 Ground 11 OPT2 12 PnP VESA Data 13 Horizontal Sync 14 Vertical Sync 15 PnP VESA Clock Table A 6 Parallel Printer Pin Assignments PIN SIGNAL 1 Strobe 2 Data Bit 0 3 Data Bit 1 4 Data Bit 2 5 Data Bit 3 6 Data Bit 4 7 Data Bit 5 8 Data Bit 6 9 Data Bit 7 10 Acknowledge 11 Busy 12 PE 13 Select ...

Page 114: ... 16 Initialize 17 Select In 18 25 Ground Table A 7 Power Connector PIN SIGNAL 1 Ground 2 DCSYS 3 DCCHG Table A 8 Hard Disk Drive Connector PIN SIGNAL 1 HDD Access LED 2 5V 3 Chip Select 0 4 5 5 Chip Select 1 6 5V 7 Address 0 8 5V 9 Address 2 10 5V 11 Address 1 12 5V 13 Diagnostic 14 Not Used 15 IRQ 16 Not Used 17 Not Used ...

Page 115: ...S Select 20 IO Write 21 I O Read 22 Not Used 23 Data0 24 Data1 25 Data15 26 Data14 27 Data2 28 Data13 29 Data3 30 Not Used 31 Data12 32 Ground 33 Data4 34 Ground 35 Data4 36 Ground 37 Data5 38 Ground 39 Data10 40 Ground 41 Data6 42 Ground 43 Data9 44 Ground 45 Data7 46 Not Used 47 Ground 48 Ground 49 RESET 50 Ground ...

Page 116: ...00 16 80x25 8x8 256 3 Text EGA 640x350 16 80x25 8x14 256 VGA 720x400 16 80x25 9x16 256 4 Graph All 320x200 4 40x25 8x8 256 CGA 320x200 4 gray 80x25 8x8 256 5 Graph EGA 320x200 4 gray 80x30 8x8 256 VGA 320x200 4 80x30 8x8 256 6 Graph All 640x200 2 80x25 8x8 256 MDA 720x350 Mono 80x25 9x14 256 7 Text EGA 720x350 Mono 80x25 9x14 256 VGA 720x400 Mono 80x25 9x16 256 D Graph E VGA 320x200 16 40x25 8x8 2...

Page 117: ...32K 80x30 8x16 1024 41 Graph Pack Pix 640x480 64K 80x30 8x16 1024 42 Graph Pack Pix 800x600 32K 100x37 8x16 1024 43 Graph Pack Pix 800x600 64K 100x37 8x16 1024 44 Graph Pack Pix 1024x768 32K 128x48 8x16 1536 45 Graph Pack Pix 1024x768 64K 128x48 8x16 1536 64 Graph Planer 1024x768 16 128x48 8x16 512 6A Graph Planar 800x600 16 100x37 8x16 256 70 Graph Pack Pix 640x480 256 80x30 8x16 512 71 Graph Pac...

Page 118: ...5 175 31 5 70 256 3 Text EGA 640x350 16 80x25 8x14 25 175 31 5 70 256 VGA 720x400 16 80x25 9x16 28 322 31 5 70 256 4 Graph All 320x200 4 40x25 8x8 25 175 31 5 70 256 CGA 320x200 4 gray 80x25 8x8 25 175 31 5 70 256 5 Graph EGA 320x200 4 gray 80x30 8x8 25 175 31 5 70 256 VGA 320x200 4 80x30 8x8 25 175 31 5 70 256 6 Graph All 640x200 2 80x25 8x8 25 175 31 5 70 256 MDA 720x350 Mono 80x25 9x14 28 322 3...

Page 119: ... 37 9 46 9 53 7 60 75 85 512 44 Graph Pack Pix 1024x768 32K 128x48 8x16 65 78 75 48 4 60 60 75 1536 45 Graph Pack Pix 1024x768 64K 128x48 8x16 65 78 75 48 4 60 60 75 1536 50 Graph Pack Pix 640x480 16M 80x30 8x16 25 175 31 5 36 31 5 37 5 43 3 60 75 85 1024 52 Graph Pack Pix 800x600 16M 100x37 8x16 40 37 9 60 1536 6A Graph Planar 800x600 16 100x37 8x16 40 49 5 56 25 37 9 46 9 53 7 60 75 85 256 64 Gr...

Page 120: ... Text 80x25 640x400 8x16 16 256 12 Graph 80x30 640x480 8x16 16 256 13 Graph 40x25 320x200 8x8 256 256 30 Graph 80x30 640x480 8x16 256 512 31 Graph 80x25 640x400 8x16 256 256 40 Graph 80x30 640x480 8x16 32K 1024 41 Graph 80x30 640x480 8x16 64K 1024 50 Graph 80x30 640x480 8x16 16M 1024 71 Graph 80x25 640x400 8x16 256 256 Linear Addressing Mode Table B 9 Panning NTSC PAL TV Display Mode Mode Mode Typ...

Page 121: ... CPU board 1 13 Creative Vibra 16S VLSI chip 1 21 CRT connector pin assignments A 4 Custom settings power management 2 32 D DC car adapter 2 11 Default power management settings 1 25 Dip switch access 2 17 Dip switches 2 17 Disassembly guidelines 4 4 Diskette controller serial interface 1 21 parallel interface 1 21 Diskette drive 1 7 1 13 Display 1 27 E Expanding memory 4 12 Expansion port 1 12 F ...

Page 122: ...l port 1 11 Parallel port pin assignments A 5 Password Override switch 2 15 PC card slots 1 10 Performing a BIOS update 2 20 Plug and play 1 25 Post error messages 2 22 Post errors 2 22 Power button 1 3 Power connector pin assignments A 5 Power LED indicator 1 4 Power management modes 1 5 active 1 24 local standby 1 24 suspend 1 24 Power management overview 1 23 Power management settings custom se...

Page 123: ...e 4 5 heat shield 4 21 I O board 4 24 LCD and top cover 4 15 main battery pack 4 8 metal keyboard support 4 19 microphone 4 23 modem board 4 19 4 23 sound board 4 21 status bar 4 19 VersaGlide 4 19 System icons 2 13 System Parameters 2 21 System setup 2 1 System specifications 1 26 System status icons 2 13 System time 2 30 System video 1 17 T Technical support 4 29 Troubleshooting 3 1 helpful ques...

Page 124: ...e the receiving antenna Increase the separation between the equipment and receiver Connect the equipment to an outlet on a circuit different from the one to which the receiver is connected To meet FCC standards shielded cables and power cords are required to connect this device to a personal computer or other Class B certified device Canadian Department of Communications Compliance Statement This ...

Page 125: ...manufacturer s instructions ATTENTION Il y a danger d explosion s il y a replacement incorrect de la batterie Remplacer uniquement avec une bat terie du même type ou d un type recommandé par le constructeur Mettre au rébut les batteries usagées conformément aux instructions du fabricant BATTERY DISPOSAL The bridge battery is made of nickel metal hydride NiMH The main battery and CMOS battery are m...

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