Advantech user manual AIMB-250 Series LCD Inverter Connector JBKL1, GND Enbkl

Page 48

AIMB-250 Series

2.4.17LCD Inverter Connector (JBKL1)

Signal

+12V

GND

ENBKL

VR

+5V

PIN

1

2

3

4

5

Note:

For inverters with adjustable Backlight function, it is possible to control the LCD brightness through the VR signal controlled by JMISC. Please see the JMISC section for detailed circuitry information.

2.4.17.1 Signal Description – LCD Inverter Connector (JBKL1)

Signal	Signal Description
VR	Vadj = 0.75V ~ 4.25V (Recommended: 4.7KΩ, >1/16W)
ENBKL	LCD backlight ON/OFF control signal

48 AIMB-250 Series User’s Manual

Image 48

Contents Mini-ITX AIMB-250 Series 1st Ed JanuaryFCC Statement Copyright NoticeTrademark Acknowledgement AIMB-250 SeriesDisclaimer Life Support PolicyMessage to the Customer User’s ManualTechnical Support Advantech CorpProduct Warranty Contents Bios Setup Keyboard Error or no Keyboard Present Memory Size has Changed Since Last BootSystem HALTED, CTRL-ALT-DEL to Reboot Offending Address not FoundHard Disks fail → Unable to recalibrate fixed disk Safety Precautions Packing ListDocument Amendment History Revision Date CommentJan Initial release Manual Objectives System Specifications SystemDisplay Mechanical & Environmental Block Diagram Architecture OverviewUser’s Manual Intel 855GME and ICH4 AIMB-250 Series ECC Dram Interface Intel 855GME PCI Interface8 USB VIA VT1616 Audio CodecAIMB-250 Series Chrontel CH7009A TV/DVI Transmitter Page AIMB-250 Series Winbond W83627HF Compact Flash InterfaceHardware Configuration Product Overview Installation Procedure Processor Installation Installing Pentium M CPUInstalling the Fan and Heat Sink Removing CPUUser’s Manual Main Memory DIMM1AIMB-250 Series Jumper and Connector List Label FunctionJP2, JP3 Connectors KBMS1 Setting Jumpers & Connectors 2 COM1 Pin 9 Signal Select JP1 +5V Ring +12VClear Cmos JBAT1 Protect RS-422 RS-422 RS-485 RS-485ATX Power Connector ATXPWR1 BIT1 BIT2 OFFVccsb Pwrok GNDUser’s Manual CPU Fan Connector CFAN1 Signal Description CPU Fan Connector CFAN1TAC AIMB-250 Series Parallel Port Connector & VGA Connector CN1 Signal Description VGA Connector CN1COM RED GND Green DAT Blue Hsync VCC Vsync DCKSerial Port 1 Connector in RS-232 Mode CN1 DCDDTR GND DSR RTS CTS DTRAIMB-250 Series Serial Port 1 Connector in RS-422 Mode CN1 Serial Port 1 Connector in RS-485 Mode CN1 Data DATA+ GNDAIMB-250 Series Audio Connector CN2 Audio-In 12 RJ-45 Ethernet / USB 0 & 1, 4 & 5 Connectors CN3, CN413 4/5/8-Wire Touch Screen Connector CN5, optional User’s Manual Floppy Connector FLP1 GND WPT Rdata SIDE1 DskchgAIMB-250 Series Signal Description Floppy Connector FLP MoatsaUser’s Manual Primary IDE Connector IDE1 AIMB-250 Series Secondary IDE Connector IDE2 RESET# IOR#IOW# IordyAIMB-250 Series LCD Inverter Connector JBKL1 Signal Description LCD Inverter Connector JBKL1GND Enbkl User’s Manual CD-ROM Audio Input Connector JCD1 Signal Description CD-ROM Audio Input Connector JCD1Serial Port 2 Connector JCOM1 AIMB-250 Series Serial Port 3/4 Connector JCOM2, JCOM3 JCOM2 JCOM3Digital Input / Output Connector JDIO1 Signal Description Digital Input / Output Connector JDIO1Smbclk SmbdataAIMB-250 Series Front Panel Connector JFP1 Signal Description Front Panel Connecter JFP1HDD LED User’s Manual IrDA Connector JIR1 Signal Description IrDA Connecter JIR1Irrx GND Irtx IrrxAIMB-250 Series Lvds Connector JLVDS1 Signal Description Lvds Connector JLVDS12CDAT 2CCLK GND 2CDAT, I 2CCLKUser’s Manual Miscellaneous Setting Connector JMISC1 Signal Description Miscellaneous Setting Connecter JMISC1CASEOPEN# VTIN3 GND Thrmdn #MASTERAIMB-250 Series Tmds DVI Connector JTMDS1 Signal Description Tmds Connecter JTMDS1User’s Manual TV Out Connector JTV1 Signal Description TV Out Connecter JTV1Tvcvb GND TVYFCC2 TVCFCC2 TvcvbAIMB-250 Series USB Connector 2 & 3 JUSB1 USB Connector 4 & 5 JUSB2Signal Description USB Connecter 2, 3, 4 & 5 JUSB1, JUSB2 System Fan Connector 1 & 2 SFAN1, SFAN2 Signal Description System Fan Connector SFAN1, SFAN2Bios Setup Starting Setup Press DEL to enter SetupPress F1 to Continue, DEL to enter Setup Using Setup Navigating Through The Menu BarCase of Problems Getting HelpUser’s Manual To Display a Sub Menu Main Menu User’s Manual Standard Cmos Features Main Menu SelectionIDE Adapter Setup User’s Manual Advanced Bios Features CPU FeatureQuick Power On Self Test Virus WarningAIMB-250 Series First/Second/Third/Other Boot Device Boot Up NumLock Status Select power on state for NumLockTypematic Rate Setting Swap Floppy DriveApic Mode MPS Version Control For OSOS Select for Dram 64MB Report No FDD For WIN95AIMB-250 Series Advanced Chipset Features Active to Precharge DelayDram Timing Selectable CAS Latency TimeUser’s Manual Dram RAS# to CAS# Delay Dram Data Integrity ModeSystem Bios Cacheable Video Bios CacheableDelayed Transaction Delay Prior to ThermalAIMB-250 Series Memory Hole At 15M-16M AGP Aperture Size MBUser’s Manual Integrated Peripherals OnChip IDE DeviceOnboard Device IDEUser’s Manual Super IO Device Watch Dog Timer 2E8/IRQ3, AutoECP+EPP IRQ3, IRQ4, IRQ5User’s Manual Power Management Setup Power ManagementAcpi Function Acpi Suspend TypePower On By Ring Resume By AlarmAIMB-250 Series Modem Use IRQ Soft-Off by PWR-BTTNUser’s Manual PnP / PCI Configuration Reset Configuration DataResources Controlled By PCI / VGA Palette SnoopAIMB-250 Series PC Health Status Case Open WarningUser’s Manual Frequency / Voltage Control Auto Detect PCI ClkSpread Spectrum CPU Host / 3V66 / PCI ClockAIMB-250 Series Load Fail-Safe Defaults Load Optimized DefaultsUser’s Manual Set Supervisor / User Password Password Disabled Save & Exit SetupUser’s Manual Exit Without Save Drivers Installation Install Driver StepUser’s Manual Click AIMB-250 Mechanical Drawing Unit mm Award Bios Post Error Messages OverviewPost Beep Eisa Configuration Checksum Error Eisa Configuration Is Not CompleteUser’s Manual Invalid Eisa Configuration Memory Address Error atMemory parity Error at Memory Verify Error atShould Be Empty But Eisa Board Found Should Have Eisa Board But Not FoundSlot Not Empty Keyboard error or no keyboard present Bios ROM checksum error System haltedUser’s Manual Wrong Board In Slot Manufacturing Post loopAIMB-250 Series Post Codes 40.1Normal Post CodeE1-EF User’s Manual AIMB-250 Series User’s Manual AIMB-250 Series AIMB-250 User’s Manual101 AIMB-250 Series 40.2Quick Post Codes AIMB-250 User’s Manual103 AIMB-250 Series 40.3S4 Post Codes SMI40.4BootBlock Post Codes