4.2. Troubleshooting

Please take note of the following two points with regard to troubleshooting:

1.Know-how of diagnosis upon occurrence of heavy troubles, e.g. ‘Set cannot be turned ON’, ‘Set fails to start’, ‘No display on screen’, etc.

2.Explanation of each trouble, mainly symptom of trouble in operation.

Flow Chart

START

Pay attention to the following points when in pursuit of the cause of a troubleshooting.

1.Peripheral apparatus connected with the set should all be removed before operation check.

2.Make sure that cables, boards, etc. are not coming off, and recheck the contact condition.

Set cannot be supplied with current. Power lamp fails to light up.

Dark display on screen.

Screen fails to display.

Failure in starting

ACNG Adaptor/Battery

Output voltage

 

OK

 

 

 

Power lamp

 

NO

check

YES

 

Inverter board

 

NG

 

OK

 

 

 

LCD back

 

NO

light lighting

 

 

 

 

YES

NG

LCD unit

 

check

 

 

 

 

OK

 

 

 

BIOS operation

 

NO

check

 

 

 

 

YES

Result of

NG

 

POST

OK

 

 

 

 

 

 

 

Replace AC Adaptor/Battery

Check contact condition of power input terminal. Replace if defective.

Check Power SW. Replace if defective.

Replace inverter board.

Check inverter cable continuity. Replace if defective

Replace LCD back light.

Replace LCD unit.

Replace main board (Check fuse at power source).

Refer to POST

 

 

 

Replace main board.

error code table.

 

 

 

 

 

Not displayed properly on screen.

 

 

 

NG

 

 

 

 

 

 

 

Set-up utility

 

 

 

Heavy trouble e.g.,

 

Replace main board.

 

 

 

 

starting

 

 

 

 

 

 

 

‘Set cannot be turned

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OK

 

 

 

 

 

 

 

 

ON’, ‘Set fails to start’,

 

 

 

 

 

 

 

 

 

 

‘No display on

 

 

Return set-up utility setpoint to the state of ‘delivery from factory’.

 

screen’, etc.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

Check HDD cable connection and continuity.

 

 

 

 

 

HDD access

Replace if defective.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace HDD & Reinstall.

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace main board.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Main board

NG

 

 

 

 

 

 

 

 

Replace main board

 

 

 

 

 

 

 

check

 

 

 

 

 

 

 

 

 

 

 

Some or all keys cannot be input.

OK

Make sure of contact of K/B connector in use. Replace keyboard or main board.

Each kind of trouble in operation.

DVD/CD CALL not practicable.

*Clean DVD-ROM drive with an applicator.

Starts but operates unstably.

TroubleNO symptoms on some

of DVD or CD

YES

Replace DVD drive.

Replace main board.

Reinstall HDD.

Replace main board.

STARTEND

Check if there are any flaws on DVD or CD media. Since flaws may appear on specific media, DVD or CD media can be defective.

4-2

Page 13
Image 13
Panasonic CF-74ECBGDBM manual Troubleshooting

CF-74ECBGDBM specifications

The Panasonic CF-74ECBGDBM is a rugged laptop designed to cater to the demanding needs of professionals who work in challenging environments. Built with durability as a top priority, this device serves as an ideal solution for industries such as public safety, construction, and field service.

One of the standout features of the CF-74ECBGDBM is its rugged design. The laptop is compliant with military standards, specifically MIL-STD-810G, ensuring it can withstand harsh conditions. This includes resistance to drops, vibration, dust, and moisture, allowing users to operate it in rain or shine without fear of damage. The spill-resistant keyboard adds another layer of protection, making it suitable for environments where liquids are prevalent.

In terms of performance, the CF-74ECBGDBM is equipped with a powerful processor, which provides efficient multitasking capabilities. The device typically features an Intel Core i5 processor, enabling smooth operation of demanding applications. Coupled with a sufficient amount of RAM, users can expect enhanced speed and productivity, even when running multiple programs simultaneously.

The laptop features a sunlight-readable display, which ensures visibility in bright outdoor conditions. The screen is designed to reduce glare, making it user-friendly for professionals who work outside regularly. Additionally, the display is supported by a durable touchscreen option, allowing for easier navigation in various working conditions.

Storage is another critical aspect of the CF-74ECBGDBM, as it often comes with solid-state drive options that not only provide ample memory for files and applications but also enhance the overall speed and reliability of the system. Users can rely on fast read and write speeds, which are essential for data-heavy tasks.

Connectivity options are abundant on this device, featuring USB 3.0 ports, HDMI output, and options for mobile broadband. This allows users to connect various peripherals or external displays easily, as well as maintain seamless internet access on the go.

Furthermore, the CF-74ECBGDBM is equipped with a long-lasting battery that supports extended periods of use, ideal for professionals who spend time away from traditional power sources. The device is designed for easy serviceability, facilitating upgrades and repairs, which enhances its lifespan in demanding workplaces.

Overall, the Panasonic CF-74ECBGDBM stands out as a robust and versatile laptop that meets the needs of users in tough outdoor and industrial settings, making it a reliable companion for professionals on the move.