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Service Guide Version and Revision Version Release Date Revision History TPV model Mar.-23-2007 Initial Release T77HRDNBGWAFN...
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Any Acer Incorporated software described in this manual is sold or licensed "as is". Should the programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect in the software.
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DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and service of customer machines. Warning: (For FCC Certified Models) Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
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Precautions Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a wet basement. Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance.
Monitor Features Introduction Scope This specification defines the requirements for the 17” MICROPROCESSOR based Multi-mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15-pin D-sub VGA connector, also supports VESA DPMS power management and plug & play function. There is a build-in stereo audio amplifier with OSD control to drive a pair of speakers.
Electrical Requirements Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light Viewing distance Warm up time All specifications Measuring equipment Control settings User brightness control User contrast control User red/white balance, Green/white balance and Blue/white balance control Power input Ambient temperature...
Monitor Block Diagram The LCD MONITOR will contain a main board, a power board, and keypad board which house the flat panel control logic, brightness control logic and DDC. The Inverter board will drive the backlight of panel and the DC-DC conversion, The Adapter will provide the 12V DC-power to inverter/power board.
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Remark: 1) MCU initializes. 2) Is the EEPROM blank? 3) Program the EEPROM by default values. 4) Get the PWM value of brightness from EEPROM. 5) Is the power key pressed? 6) Clear all global flags. 7) Are the AUTO and SELECT keys pressed? 8) Enter factory mode.
Main Board Layout Symbol Description U201 AP1117E33LA U401 IC MCU RTD2120L-LF REALTEK U402 AZ431AN-A-E1 U501 SCALER IC RTD2025L QFN-48 Symbol Description X401 24MHZ/30PF/49US CN201 WAFER 9P RIGHT ANELE PITCH CN202 WAFER CN601 CONN W TO B12P*2 P*2.0 4505-2...
Operating Instructions Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. • The power cord should be connected. •...
Adjusting the Picture How to Adjust a Setting 1. Press the MENU-button to activate the OSD window. 2. Press <or >to select the desired function. 3. Press the MENU-button to select the function that you want to adjust. 4. Press < or > to change the settings of the current function. 5.
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b. The Description For Function Control LEDS...
OSD Message a. Outline b. The Description For OSD Message Item Auto Config When Analog signal input, if User Press Hot-Key “Auto”, will show this message, and the Please Wait monitor do the auto config function. Input Not When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor Supported support range, will show this message.
Logo When the monitor is power on, the LOGO will be showed in the center, and disappear slowly. How To Optimize The DOS-Mode Plug And Play Plug & Play DDC2B Feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities.
Machine Disassembly This chapter contains step-by-step procedures on how to disassemble the monitor for maintenance. Disassembly Procedure 1. Remove the screws to release base stand and gemel. (Fig 1-3) Fig 1 Fig 2 Chapter 3...
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Fig 3 2. Remove the screws to remove the back cover. (Fig 4) Fig 4...
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3. Remove the screws to remove the shield . (Fig 5) 4. Remove the bezel. (Fig 6) Fig 5 Fig 6...
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5. Remove the screws to remove the panel. (Fig 7-9) Fig 7 Fig 8 Fig 9...
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6. Remove the screw to remove the main board. (Fig 10) 7. Remove the screws to remove the power board. ( Fig 11-12 ) Fig 10 Fig 11...
Troubleshooting This chapter provides troubleshooting information for the AL1702W: 1. No Power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Measure U201 Pin 3=5V, U201 Pin 2=3.3V Check if X401 oscillate waveforms are normal Replace X401...
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2. No Picture No picture Measure U201 PIN2=3.3V Check if X401oscillate waveforms are normal Check if the sync signal from computer is output and video cable is connected normally Replace U401,U501 Replace U201 Replace X401 Input the sync signal of computer, or change the cable...
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3. Panel Power Circuit Check CN601 PIN 23-24 should have response from 0V to 5V When we switch the power switch from on to off Replace panel 4. Keypad Board OSD is unstable or not working Is Keypad board connecting normally? Is Button Switch normally? Is Keypad board normally? Check main board...
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5. No Backlight Check C802 (+) =12V Check ON/OFF signal Check IC801 pin12=5V? Check the pin9&10 of IC801 have PWM wave Check the resonant wave of pin6 & pin1 for PT801 Check the output of PT801 Check connecter & lamp Change FB801,Check Q808, Q810...
NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it. Chapter 6...