Call Center:

 

Repair Center:

 

 

Repair Center:

 

 

Symptom

 

Suggestions

 

Likely Causes

 

 

Comments

 

 

Region Code error.

 

DVDs contain embedded

 

 

 

 

 

 

 

 

 

regional codes that prevent

 

 

 

 

 

 

 

 

 

them from playing outside

 

 

 

 

 

 

 

 

 

region in which they are sold.

 

 

 

 

 

 

 

 

 

This error occurs when trying

 

 

 

 

 

 

 

 

 

to play DVD intended for

 

 

 

 

 

 

 

 

 

different region.

 

 

 

 

HP warranty does not cover

 

 

 

 

Important: Most DVD drives

 

 

 

 

 

 

 

 

allow region code to be

 

 

 

 

expense of correcting this

 

 

 

 

changed only a limited

 

 

 

 

situation.

 

 

 

 

number of times (usually no

 

 

 

 

 

 

 

 

 

more than four). When this

 

 

 

 

 

 

 

 

 

limit is reached, last change

 

 

 

 

 

 

 

 

 

is hard-coded on DVD drive,

 

 

 

 

 

 

 

 

 

and is permanent. Refer to

 

 

 

 

 

 

 

 

 

DVD player software help for

 

 

 

 

 

 

 

 

 

details.

 

 

 

 

 

 

 

“System Error:

 

Make sure disk is clean,

 

CD/DVD drive.

 

 

Make sure CD/DVD drive is

 

 

Unable to read

 

undamaged, and inserted

 

Motherboard.

 

 

installed properly.

 

 

drive” message.

 

correctly. Clean with soft

 

 

 

 

 

 

 

 

 

cloth or replace as needed.

 

 

 

 

 

 

 

 

 

Wait 5 to 10 seconds after

 

 

 

 

 

 

 

 

 

closing tray before pressing

 

 

 

 

 

 

 

 

 

Play.

 

 

 

 

 

 

 

 

 

Restart notebook.

 

 

 

 

 

 

 

No DVD or CD-RW

 

If software was removed, use

 

 

 

 

 

 

 

software on

 

the Recovery CDs to reinstall

 

 

 

 

 

 

 

notebook.

 

factory software.

 

 

 

 

 

 

 

All DVD play is

 

Some DVDs include software

 

 

 

 

 

 

 

erratic.

 

called “PC Friendly”. This

 

 

 

 

 

 

 

 

 

software can cause errors or

 

 

 

 

 

 

 

 

 

erratic play. If needed,

 

 

 

 

 

 

 

 

 

uninstall PC Friendly and

 

 

 

 

 

 

 

 

 

restart notebook.

 

 

 

 

 

 

 

Keyboard

 

 

 

 

 

 

 

 

 

Some or all keys do

 

Check settings in Control

 

Keyboard.

 

 

Try reinserting ribbon cable in

 

 

not work properly.

 

Panel.

 

Motherboard.

 

 

connector on motherboard.

 

 

Embedded numeric

 

Press Fn+F8 to activate

 

Keyboard.

 

 

 

 

 

keypad does not

 

numeric keypad, and Lock

 

Motherboard.

 

 

 

 

 

work.

 

key to turn on number lock.

 

 

 

 

 

 

 

 

 

Avoid touching touch pad

 

 

 

 

 

 

 

 

 

while booting or resuming.

 

 

 

 

 

 

 

PS/2 keyboard

 

Check devices separately.

 

Y-adapter.

 

 

 

 

 

and mouse with

 

 

 

PS/2 device.

 

 

 

 

 

Y-adapter do not

 

 

 

Motherboard.

 

 

 

 

 

work.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3-12 Troubleshooting and Diagnostics

Service Manual

Page 85
Image 85
HP 2129AD, 2175EA, 2164EA, 2163EA, 2160US, 2158EA, 2165EA, 2166EA, 2505AP Some or all keys do Check settings in Control Keyboard

2550CA, 2542EA, 2562AP, 2555AP, 2136AD specifications

The HP 2135US is a versatile all-in-one desktop computer designed to meet the needs of home and small office users. This robust machine is particularly attractive for individuals who seek a blend of performance, aesthetics, and user-friendly features.

At the heart of the HP 2135US is its powerful Intel Core processor. This series of CPUs provides reliable performance for multitasking and productivity tasks, ensuring smooth operation whether you're working on documents, browsing the web, or streaming multimedia content. Complementing the processor is a competent amount of RAM, allowing users to run multiple applications simultaneously without experiencing slowdowns.

The computer features a vibrant display that brings visuals to life. With high resolution and excellent color accuracy, the HP 2135US is ideal for photo editing, video playback, and gaming. The screen's size also contributes to an immersive experience, making it suitable for both leisure and professional uses.

Storage is another significant feature of the HP 2135US. It comes equipped with a sizeable hard drive, providing ample space for files, applications, and media libraries. Furthermore, the device offers options for solid-state drives, which enhance the system's speed and responsiveness. This blend of storage solutions ensures that users can choose configurations that best fit their needs.

Connectivity is a strong suit of the HP 2135US, as it includes a range of ports and wireless options. Multiple USB ports allow for easy connection of peripherals such as printers, keyboards, and external storage devices. Additionally, integrated Wi-Fi and Bluetooth capabilities enable seamless networking and device pairing, enhancing the overall user experience.

The integrated graphics in the HP 2135US ensures decent performance for everyday tasks and light gaming. Combined with its multimedia features, the computer serves as a capable entertainment hub for users who enjoy watching movies or playing games.

In terms of design, the HP 2135US boasts a sleek, modern aesthetic that fits well in any environment. Its compact form factor makes it space-efficient, an important consideration for users with limited workspace. The ergonomics of the design also contribute to comfortable usage over extended periods.

To sum up, the HP 2135US represents a blend of performance, connectivity, and design sophistication. Its comprehensive set of features makes it an excellent choice for users seeking an all-in-one solution for both work and play, proving itself to be a worthy addition to any modern workspace or home office setup.