Repair Tips

240PW9 LCD

0. Warning

All ICs and many other semi -conductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically . When repairing, make sure that you are connected with the same potential as the mass of the unit via a wrist wrap with resistance. Keep components and tools also at the same potential !

1. Servicing of SMDs (Surface Mounted Devices)

1.1 General cautions on handling and storage

- Oxidation on the terminals of SMDs results in poor soldering. Do not handle SMDs with bare hands.

-Avoid using storage places that are sensitive to oxidation such as places with sulphur or chlorine gas, direct sunlight, high temperatures or a high degree of humidity. The capacitance or resistance value of the SMDs may be affected by this.

-Rough handling of circuit boards containing SMDs may cause damage to the components as well as the circuit boards. Circuit boards containing SMDs should never be bent or flexed. Different circuit board materials expand and contract at different rates when heated or cooled and the components and/or solder connections may be damaged due to the stress. Never rub or scrape chip components as this may cause the value of the component to change. Similarly , do not slide the circuit board across any surface.

1.2 Removal of SMDs

-Heat the solde r (for 2-3 seconds) at each terminal of the chip. By means of litz wire and a slight horizontal force, small components can be removed with the soldering iron. They can also be removed with a solder sucker (see Fig. 1A)

While holding the SMD with a pair of tweezers, take it off gently using the soldering iron's heat applied to each terminal (see Fig. 1 B).

-Remove the excess solder on the solder lands by means of litz wire or a solder sucker (see Fig. 1C).

preferably be equipped with a thermal control (soldering temperature: 225 to 250 C).

- The chip, once removed, must never be reused.

1.4 Attachment of SMDs

-Locate the SMD on the solder lands by means of tweezers and sold er the component on one side. Ensure that the component is positioned correctly on the solder lands (see Fig.2A).

-Next complete the soldering of the terminals of the

component (see Fiq. 2B).

2. Caution when attaching SMDs

-When soldering the SMD terminals, do not touch them directly with the soldering iron. The soldering should be done as quickly as possible, care must be taken to avoid

damage to the terminals of the SMDs themselves.

-Keep the SMD's body in contact with the printed board when soldering.

-The soldering iron to be used (approx. 30 W ) should preferably be equipped with a thermal control (soldering temperature: 225 to 250 C).

-Soldering should not be done outside the solder land.

-Soldering flux (of rosin) may be used, but should not be acidic.

-After soldering, let the SMD cool down gradually at room temperature.

-The quantity of solder must be proportional to the size of the solder land. If the quantity is too great, the SMD might

crack or the solder lands might be torn loose from the printed board (see Fig. 3).

Right

Fig.3 Examples

1.3 Caution on removal

- When handling the soldering.iron. use suitable pressur e and be careful.

- When removing the chip, do not use undue force with the pair of tweezers. - The soldering iron to be used (approx. 30 W) should

240PW9EB/27, 240PW9EB/75, 240PW9EB/69, 240PW9EB/00, 240PW9ES /00 specifications

The Philips 240PW9 series comprises a range of versatile monitors, including models such as the 240PW9ES/00, 240PW9EB/00, 240PW9EB/69, 240PW9EB/75, and 240PW9EB/27. These displays cater primarily to professionals seeking a balance between performance, ergonomics, and visual quality, making them suitable for both office environments and creative workspaces.

One of the standout features of the 240PW9 series is its high-resolution display, typically offering a 1920 x 1200 resolution. This extra vertical screen space is particularly advantageous for multitasking, allowing users to view documents side by side or keep multiple applications open simultaneously without sacrificing clarity.

The monitors also employ advanced LCD technology, providing vivid color reproduction and sharp image quality. With an impressive contrast ratio, these monitors deliver deep blacks and bright whites, enhancing the overall viewing experience. The IPS (In-Plane Switching) panel used in these models ensures wide viewing angles, making it easier for multiple users to view the screen without color distortion.

Another key characteristic of the Philips 240PW9 models is their ergonomic design. Many of the monitors in this series come equipped with height-adjustable stands, allowing users to customize the monitor's position for optimal comfort. Additionally, features such as tilt and swivel capabilities enhance the viewing experience, promoting better posture during long hours of work.

Connectivity options are ample across the Philips 240PW9 series. Users can expect to find multiple inputs, including VGA, DVI, and DisplayPort, facilitating easy connections to various devices such as computers, laptops, and even projectors. This flexibility ensures that users can easily integrate the monitors into their existing setup without requiring additional adapters.

Philips prioritizes eye comfort by incorporating Flicker-Free technology, which reduces eye strain during extended use. Blue Light Filter options further protect users by diminishing the amount of harmful blue light emitted from the screen, contributing to a healthier working environment.

In summary, the Philips 240PW9ES/00, 240PW9EB/00, 240PW9EB/69, 240PW9EB/75, and 240PW9EB/27 models encapsulate a well-rounded package of exceptional display quality, ergonomic features, and versatile connectivity options, making them an excellent choice for professionals seeking reliable and high-quality performance in their workspaces. These monitors reflect Philips' commitment to innovation and user-centric design, ultimately helping to enhance productivity without compromising on comfort.