Dell E176FPB service manual Check List

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Dell E176FPc

13.Check List

1)After replacing LCD Main board and panel, Check if white-balance is within the specs, then re-writing DDC is necessary.

The white-balance value for each common color temperature: 9300 parameter is x=283±28, y=297±28, Y = 180 ±10 cd/m2, 6500 parameter is x =313±28, y=329±28, Y = 180 ±10 cd/m2, 5700 parameter is x = 328 ±28, y = 344 ±28, Y = 180 ±10 cd/m2)

The color temperature value above must be up to the situation of x<y. The value of Y should be confirmed according to different customers. 15” LCD is commonly 180±20cd/cm2（Center）and 17” LCD is required to be

larger than 200cd/cm2 (Center). The exact brightness values are confirmed by the checking-regulations of different customers and different models.

2)Steps of white-balance adjustment for LCD:(Take 17” AOC LCD LM724 for example)

1.Required instruments: Chroma7120、Chroma2325（BGA265A）。

2.First connect the instruments together and turn on the LCD power, then warm up for 30 minutes under full white screen mode. First press the “Reset” key in the menu to recover factory set as following.

Set Chroma2325 at round-windows mode and make the detecting-head of Chroma7120 aim at the cross in the middle, the distance between the detecting-head and the cross is 20cm.

3.Set Chroma2325（BGA265A）to be T144（1280*1024/60HZ）and P105 of full white screen. Test if the white-balance value is within the specs. Please follow the steps below to adjust if it is beyond the specs.

4.Cut the power. Then press MENU key and re-plug power cable at the same time to enter into the factory mode. See the following pictures.

Select ”F＂,then Select

AUTO LEVEL item.

5.Test white-balance again after Auto Level. Adjustment with hand is necessary if it is beyond the specs.

6.Select 7x00 item to adjust cool color-temperature and select 6x00 to adjust warm color- temperature. It can

reach to the best effect through adjusting R/G/B value if it inclines to green or blue. 56

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Contents LCD Monitor Revision List Revision Release Date Revise history TPV modelAdd Definition Of Pixel Defects Add Max Brightness measurementTable of contents LayoutMonitor Specifications CLAA170EA07 CPTMonitor Block Diagram LCD Monitor DescriptionControl Buttons Operation instructionsGeneral Instructions Brightness / Contrast Function Auto adjustment Adjustment MethodOn Screen Menu/Display OSD Adjusting the Picture Exit Phase Color Settings Normal Preset Blue Preset Red Preset Dell E176FPc Language Factory Reset Factory Preset Display Modes Input/Output SpecificationInput Signal Connector Power Supply Requirements Panel Specification Optical Characteristics For LM170E01- TLB3/TLB4 panel Optical Characteristics For CLAA170EA07 panel Block Diagram Monitor Exploded ViewSoftware Flow Chart Dell E176FPc Electrical Block Diagram Flash MemoryLCD Interface Scalar GM2621Inverter/Power Board Disassembly Flow Chart RemarkRemove stand Remove bezelRemove rear cover Remove the shield Lvds Cable Magnetism ringEnd Schematic Diagram Main BoardGm2621 Keypad Panel Interface Power Power Board KBP206GIs power GND Is signal GND Page PCB Layout Dell E176FPc Inverter/Power Board Dell E176FPc Key Board Maintainability Equipments and Tools RequirementReplace U401 GM2621 Trouble shootingNo display Panel Power Circuit Inverter Control Relative CircuitU401-data Output No Power No Backlight Key Board White balance, Luminance adjustment Max Brightness measurement Edid ContentTurn the POWER-button off to on to quit from factory mode Connect ISP Writer preparation action To Use ISP Writer take E153FP for example Dell E176FPc Dell E176FPc Dell E176FPc Executing ISP Check List Steps for writing DDC： Dell E176FPc Location Description Quantity Unit BOM ListDescription Quantity Unit Remark Carton PCS SUB 15PIN PCS BAV99 PCS RST SM 0603 Jump MAX 0R PCS M24C02-WMN6TP PCS PCS CN1 B2P3S-VH PCS RST SM 1206 Jump MAX 0R PCS RLZ11B Llds PCS Heat Sink PCS Definition Of Pixel Defects CLAA170EADell E176FPc 14.2 LM170E01-TLB3 / LM170E01-TLB4 Line Defect

E176FPB specifications

The Dell E176FPB is a compact yet feature-rich monitor that caters to a variety of users, from home office setups to educational environments. Designed with practicality in mind, this 17-inch flat-panel LCD display delivers a blend of performance, reliability, and energy efficiency.

One of the primary features of the E176FPB is its high-resolution display, offering a native resolution of 1280 x 1024 pixels. This clarity allows for sharp images and crisp text, making it suitable for various tasks like document editing, web browsing, or even light multimedia use. The monitor utilizes a 5:4 aspect ratio, which, while slightly outdated compared to modern widescreen displays, remains highly functional for traditional office applications.

The E176FPB is equipped with an anti-glare coating that reduces reflections and distractions, providing comfortable viewing even in brightly lit environments. The 250 cd/m² brightness combined with a contrast ratio of 600:1 ensures that images appear vibrant and details are well-defined. With a typical response time of 5ms, the monitor handles motion with relatively low blur, making it sufficient for casual video playback.

In terms of connectivity, the Dell E176FPB offers a D-Sub (VGA) port, ensuring compatibility with a wide range of computers and devices. It also includes a built-in power supply, which minimizes desk clutter and simplifies installation.

The monitor incorporates Dell's commitment to sustainability and energy efficiency. It features Energy Star certification, which signifies compliance with energy-saving standards, ultimately reducing the carbon footprint. Additionally, the E176FPB adheres to the latest environmental regulations, making it a conscientious choice for eco-minded consumers.

With a tilt-adjustable stand, users can customize their viewing angles for improved ergonomic comfort. Using the monitor for extended periods becomes easier and less straining on the neck and eyes. The build quality of the E176FPB is robust, ensuring longevity and reliable performance.

Overall, the Dell E176FPB stands out for its user-friendly attributes, solid performance, and energy-efficient design, making it a practical option for those seeking a dependable monitor for various computing needs. Whether for professional or personal use, it balances functionality with sustainability, embodying Dell's reputation for delivering quality technology.
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