Panasonic CF-74CCBAXBM Power-On Self Test Boot Check, Diagnosis Beep signal sound Error message

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5 Power-On Self Test (Boot Check)

Outline of POST

The set has a boot check function called POST (Power-On Self Test) in it. The condition of the main body is diagnosed by checking beep sound or error code.

zStart .............Test begins automatically when power switch is set to ON.

zNormal finish .....After memory checking, a beep sound is issued once and the set is placed into automatic stop. Note: If no error occurs, nothing is displayed. (No display of OK, etc.)

Error Diagnosis by Checking Beep Signal Sound

The beep sound is as follows:

(1 (long sound) -2-3-4) (Length of bar shows length of sound.)

= long sound (about 0.4 sec.),

 

= short sound (about 0.2 sec.), Length between sounds is about 0.1 sec.

 

zTable of errors classified by beep sounds

Diagnosis

Beep signal sound

Error message

Main board

1(long sound)-2

BIOS ROM error

 

1-2-2-3

BIOS ROM error

 

1-3-1-1

RAM error

 

1-3-1-3

Keyboard controller error

 

1-3-4-1

RAM error

 

1-3-4-3

RAM error

 

1-4-1-1

RAM error

 

2-1-2-3

BIOS ROM error

 

2-2-3-1

Occurrence of unexpected offering

(Note) A beep sound is also issued in case of other I/O trouble.

5-1

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Contents CF-74 Page Laser Safety Information Page Page Contents LAN CF-74CCBAXBM / CF-74CCBADBMCPU Main Specifications Names and Functions of Parts Right side Block Diagram Page Troubleshooting Power-On Self Test Boot Check Diagnosis Beep signal sound Error messageStuck key 02D0 System cache error Cache disabled Diagnostic Test UnitSelf Diagnosis Test CPU A20 Gate Test Vesa Mode TestSpeaker Test Cache ON/OFF TestPeripheral Test Test Selection End of test Error Messages and Troubleshooting Wiring Connection Diagram Removing the HDD Battery PackPreparation HDD UnitRemoving the Speaker and the LED PCB Removing the Dimm Memory CardRemoving the Keyboard KBD FPCCN6 Removing the Bottom CaseRemoving the Main PCB CN7Removing the FAN Motor and SD PCB Removing the PC Card Ejector and Lithium BatteryRemoving the DC-IN PCB and I/O Removing the LCD Front Cabinet Removing the USB PCBRemoving the Display unit Removing the LCD and the InverterPAD SW PCB Removing the Touch PAD and PADScrews N14 DRHM0106ZA Arranging the W-LAN L and R Cable Setting the LCD UnitInverter LAN Antenna L PCB LAN Antenna R PCBAttaching the Cloth Attaching the LCD Damper C and LCD Damper DArranging the LCD/TS Cable LCD UnitArranging the TP Power Cable and Attaching the TP/LCD Sheet Setting the Inverter and Arranging the Inverter CableLCD Rear Cabinet Fixing of the LCD Front Cabinet Setting the LCD Front CabinetSetting the Display unit Arranging the USB Cable Setting the USB PCBSafety Working MP Slide Sheet USB Cable TapePipe Sheet Setting the SD PCB, Heat Sink and FAN MotorApplying Grease on the Heat Sink Fan Dust SheetFAN Cable Sheet DC-IN Cable ~3mm Setting the DC-IN PCB and I/O PCBArranging the DC-IN Cable INV. CableArranging the Lithium Battery Setting the PC Card Ejector and Lithium BatterySetting the Main PCB Lithium BatteryArranging the FAN Cable No.8 TP Power CableFAN Cable Connector CN28 FAN Motor Main PCB TapeMDC Module Setting the Wireless Module and MDC ModuleArranging the Modem Cable Kapton TapeSetting the Bottom Case Setting the Handle AssyRed Line Setting the Speaker and the LED PCBSoldering the Speaker Cable and Setting the Speaker Rubber Soldering White Line Red Line Speaker Speaker CableSetting the Keyboard Center CoverSetting the Dimm Memory Card and Dimm Cover Exploded View Screw tightening torque Screw tightening torque CF-74CCBAXBM Lithium Battery PCB, PAD Switch RTLWireless LAN Module DFJS993YA Cable TP PowerDFJS991ZA Cable Speaker R Lithium ION Battery Pack DFQX5582ZA ManualDFHR3C91ZA Sheet LED Power DFJS997ZA CableserialIndicator Sheet SD DFHR6221ZA LED Lenz PowerIndicator Sheet B Power SW ButtonHDD Latch Knob DFHR3C99ZA No SC CushionDFHR3D15YA PEN Friction Sheet DFHR6209ZA PEN HolderDescription Page Page EEFUD0D271ER Page Page Thermistor EEFCX0D221REEFCX0E221R Capacitor EEFUD0J151ER Page EEFSX0D331ER ERJ2RKF1500XECJ2FF1A106Z EEFCD0D101ER ConnectorEEFCX0J101R EEFCX0G151RDiode IC, USB Power SW IC, Temperature CensorIC, Audio Power Amplifier FUSE, 2AIC, FET Switch IC, SwitchIC, Power Management Switch IC, Logic ICPoly SW Inductor DDB5Z021C-YDDAZS100MT3T Inductor Transistor B1GBCFNN0042B1GBCFJN0037 Transistor B1GFCFNN0019 TransistorTransistor B1GDCFNN0031 ERJ2RKF1000X B1GFCFJN0016 TransistorTransistor ERJ2GEJ102X RESISTOR, 1/16W, 1KΩ ERJ2RKF27R4XERJ2GEJ240X ERJ2GEJ562XERJ2GEJ560X ERJ2RKF75R0XERJ2RKF1002X RESISTOR, 1/16W, 10KΩ ERJ2RKF2550XERJ2RKF1501X Resistor ArrayResistor Array ERJ2GE0R00X RESISTOR, 1/16W, 0Ω ERJ2GEJ104X ERJ2GEJ1R0X RESISTOR, 1/16W, 1ΩDEARA8CJ330M Resistor Array ERJ2GEJ470X ERJ2RKF22R6XERJ2GEJ471X DEARA8AJ103M Resistor ArrayERJ2RKF49R9X ERJ2GEJ203X RESISTOR, 1/16W, 20KΩERJ2GEJ105X RESISTOR, 1/16W, 1MΩ ERJ2RKF4871XERJ2GEJ333X RESISTOR, 1/16W, 33KΩ ERJ6GEY0R00V RESISTOR, 1/10W, 0ΩERJ2GEJ223X RESISTOR, 1/16W, 22KΩ ERJ2GEJ153X RESISTOR, 1/16W, 15KΩERJ3GEYJ100V ERJ2RKF2490XERJ2RHD561X ERJ3GEYJ3R3VERJ2RHD153X RESISTOR, 1/16W, 15KΩ ERJ2RKF4702X RESISTOR, 1/16W, 47KΩERJ2RKF3302X RESISTOR, 1/16W, 33KΩ ERJ2RHD104XLED PCB Diode EVQPLDA15ERJ2GEJ822X B1GDCFNN0031 TransistorERJ2GEJ102X RESISTOR, 1/16W, 1KΩ ERJ2GEJ103X RESISTOR, 1/16W, 1KΩB1GDCFJA0025 Transistor ERJ3GEYJ101V

CF-74CCBAXBM specifications

The Panasonic CF-74CCBAXBM is a remarkable rugged laptop designed to cater to the demanding needs of professionals in various industries, including construction, utilities, and public safety. Known for its robust build quality and impressive specifications, the CF-74 is engineered to withstand harsh environments while delivering high performance.

One of the standout features of the CF-74 is its durability. The device is MIL-STD-810G certified, which means it meets military standards for toughness, making it resistant to water, dust, vibration, and drops. This ruggedness is complemented by a magnesium alloy chassis, which not only enhances durability but also keeps the device lightweight, thus promoting portability for users who are always on the move.

The laptop is equipped with a 14.0-inch daylight-readable display with a resolution of 1280 x 800 pixels, offering excellent visibility in various lighting conditions. This feature is especially useful for field workers who need to read the screen in bright sunlight. Additionally, the CF-74 supports multi-touch functionality, allowing for an intuitive user experience that improves productivity.

Performance-wise, the CF-74CCBAXBM is powered by Intel's Core i5 processors, providing sufficient processing power for demanding applications. Coupled with up to 8GB of RAM, users can run multiple applications smoothly without experiencing lag. The device also includes a range of storage options, allowing for HDDs or SSDs, which enhances speed and reliability.

Connectivity is another significant aspect of the CF-74's design. It comes equipped with multiple ports, including USB 3.0, HDMI, Ethernet, and serial ports, ensuring that users can easily connect to various peripherals and networks. Additionally, it offers optional features such as a built-in 4G LTE module for mobile data access, GPS functionality, and smart card readers for enhanced security.

In terms of battery life, the CF-74 is designed for long usage hours, making it suitable for extended work sessions in the field. The laptop also supports hot-swappable batteries, enabling users to replace batteries without shutting down the device, thus minimizing downtime.

Overall, the Panasonic CF-74CCBAXBM stands out as an excellent choice for professionals who require a rugged, reliable, and high-performance laptop to handle the challenges of demanding work environments. Its combination of durable design, robust performance, and extensive connectivity options makes it a valuable tool for those in need of a reliable mobile computing solution.
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