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Acer P203W Service Manual

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Acer P203W
Service Guide
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  Summary of Contents for Acer P203W

  • Page 1 Acer P203W Service Guide...
  • Page 2 Service Guide Version and Revision Version Release Date Revision History TPV model TA7AMADB5WAYNC Aug.-23-2007 Initial Release TA7AMAMB5WAYHC...
  • Page 3 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.
  • Page 4 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.
  • Page 5 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.
  • Page 6: Table Of Contents

    Table Of Contents Chapter 1 Monitor Features ………………………………………… Introduction ……………………………………… Electrical Requirements ……………………………………… LCD Monitor General Specification ……………………………………… LCD Panel Specification ……………………………………… Support Timing ……………………………………… Monitor Block Diagram ……………………………………… Main Board Diagram ……………………………………… Software Flow chart ……………………………………… Main Board Layout ………………………………………...
  • Page 7: Chapter 1 Monitor Features

    This will alleviate the growing health concerns. It is also a space saving design, allowing more desktop space, and comparing to the traditional CRT monitor, it consumes less power and gets less weight in addition MTBF target is 50k hours or more. Chart of P203W Panel M201EW02 V90...
  • Page 8: Electrical Requirements

    Electrical Requirements Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light Dark room Viewing distance 30-50 cm for LCD performance Warm up time >30 minutes All specifications Measuring equipment Photo detector PR650 w/2° Measurement field Color temperature 6500°...
  • Page 9: Lcd Monitor General Specification

    LCD Monitor General Specification Driving system TFT Color LCD Active Display Area 433.44(H) × 270.90mm(V) LCD Panel Pixel pitch 0.258 (per one triad) x 0.258 Contrast Ratio 1000 : 1 Response time Separate Sync. H/V TTL Input H-Frequency 30kHz – 83kHz V-Frequency 56-75Hz Viewing angle...
  • Page 10: Lcd Panel Specification

    LCD Panel Specification General Specifications Absolute Maximum Ratings...
  • Page 11 Optical Specifications...
  • Page 12: Support Timing

    Support Timing...
  • Page 13: Monitor Block Diagram

    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 power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.
  • Page 14: Main Board Diagram

    Main Board Diagram Crystal LCD Interface (X201) (CN301) 14.318MHz FLASH ROOM PM25LV010A (U402) Scalar IC TSUMU58BWHL-LF (Include MCU ,ADC, OSD) EEPROM (U202) M24C04-W MN6TP (U204) H sync V sync Key Board D-Sub Control Connector Connector CN201 (CN101) (CN103) D-Sub DDC DVI DDC M24C02-WMN6TP M24C02-WMN6TP...
  • Page 15: Software Flow Chart

    Software Flow Chart...
  • Page 16 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.
  • Page 17: Main Board Layout

    Main Board Layout Symbol Description Symbol Description U701 056G 585 4A X201 093G 22 53 H U702 056G 563 31 CN301 033G801930F H U202 056G 562172 CN401 033G3802 9 U402 056G1133713 CN201 033G3802 6 U101 056G1133 34 CN103 088G 35424F N CN101 088G 35315F H...
  • Page 18: Installation

    Installation...
  • Page 19: Attaching/Removing The Base

    Attaching/Removing the Base...
  • Page 20: Chapter 2 Operating Instructions

    Chapter 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. •...
  • Page 22: Ecolor Management (Osd)

    eColor Management (OSD)
  • Page 23: How To Adjust A Setting

    How to Adjust a Setting...
  • Page 24 Adjusting the picture...
  • Page 27: Osd Message

    OSD Message a. Outline b. The Description For OSD Message Item Description 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.
  • Page 28: Logo

    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.
  • Page 29: Chapter 3 Machine Disassembly

    Chapter 3 Machine Disassembly This chapter contains step-by-step procedures on how to disassemble the monitor for maintenance. Disassembly Procedure 1. Remove the cover hinge marked in red. (Fig 1) Fig 1 2. Remove the screws as following indicate to release base stand . (Fig 2) Fig 2...
  • Page 30 3. Remove the back cover and regard the hook. (Fig 3-4) Fig 3 Fig 4...
  • Page 31 4. Remove the keyboard. (Fig 5) Fig 5 5. Remove the bezel. (Fig 6) Fig 6...
  • Page 32 6. Remove the screws to remove the panel. (Fig 7-9) Fig 7 Fig 8 Fig 9...
  • Page 33 7. Remove the screw as following indicate to remove the main board, audio board and power board. (Fig 10-12) Fig 10 Fig 11...
  • Page 34 Fig 12...
  • Page 35: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting This chapter provides troubleshooting information for the P203W: 1. No Power No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Reinsert or check the power section Measure U701 Pin2=3.3V, U702 Pin...
  • Page 36 2. No Picture No picture Measure U701 Pin2=3.3V, U702 Pin 2=1.8V Replace U701,U702 Check if X201oscillate waveforms are normal Replace X201 Check if the sync signal from computer is output and video cable is connected normally Input the sync signal of computer, or change the cable Replace U202...
  • Page 37 3. Panel Power Circuit Check the PPWR panel power relative circuit Q301, Q302 Check CN301 PIN1 should have In normal operation, when LED =green, Q301B =5 V, response from 0V to 5V When we If PPWR no-response when the power switch switch the power switch from on to off Turn on and turn off, replace the U202 Replace panel...
  • Page 38 5. No Backlight Check C802 (+) =12V Change F801 Check ON/OFF signal Check main board Check IC801 pin12=12V? Change Q805.Q808 Check the pin9&10 of IC801 have PWM wave Change Q801/Q804/Q811/Q812 Replace IC801 Check the resonant wave of pin3 & pin1 for T801,T802 Check Q802/Q803 Check the output of T801,T802 Change T801,T802...
  • Page 39: Chapter 5 Connector Information

    Chapter 5 Connector Information The following figure shows the connector locations on the monitor:...
  • Page 41: Chapter 6 Fru (Field Replacement Unit) List

    FRU parts for repair and service of customer machines. 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.
  • Page 42: Exploded Diagram

    Exploded Diagram (Model: P203W)
  • Page 43 Part List Above picture show the description of the following component. Item Picture Description Base shield Panel...
  • Page 44 Power Board Main Board...
  • Page 45: Chapter 7 Schematic Diagram

    0.1uF/16V 0.1uF/16V D118 M24C02-WMN6TP RLZ5.6B T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL ACER X/P203W SERIES Size 絬 隔 瓜 絪 腹 G2698-1-X-X-7-070717 TPV MODEL K22W Key Component 2.0.INPUT PCB NAME 715G2698-1-AC < 称称...
  • Page 46 100uF/25V Q301 2N3906S-RTK/PS AO3401L T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size ACER X/P203W SERIES 絬 隔 瓜 絪 腹 G2698-1-X-X-7-070717 TPV MODEL K22W Key Component 3.0.OUTPUT PCB NAME 715G2698-1-AC 称称 称称 <...
  • Page 47 100uF/25V 100uF/25V 0.1uF/16V 0.1uF/16V T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size ACER X/P203W SERIES 絬 隔 瓜 絪 腹 G2698-1-X-X-7-070717 TPV MODEL K22W Key Component 4.0.POWER PCB NAME 715G2698-1-AC 称称 称称 <...
  • Page 48 0.1uF/16V 0.1uF/16V M24C04-WMN6TP Near to Connect T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL ACER X/P203W SERIES Size 絬 隔 瓜 絪 腹 G2698-1-X-X-7-070717 TPV MODEL K22W Key Component 5.0.SCALER PCB NAME 715G2698-1-AC 称称...
  • Page 49 Power board 1/4W R918 F902 0R05 1/4W 1K 1/4W 1K 1/4W 1K 1/4W 1K 1/4W +14V 1/4W R919 L904 C912 1.1uH 0.001uF ZD902 1/4W R920 RLZ16B C917 C918 C922 680uF/25V 680uF/25V R929 1K 1/8W T901 ZD901 D906 Q902 SP10100 BD901 PMBS3904 R936 KBP208G...
  • Page 50 T801 POWER X'FMR D805 R817 R821 CN801 BAW56 10K 1/10W 1K 1/10W 1% R855 CONN 1/4W C839 F801 1000pF C819 0R05 1/4W 0.0022uF +12V C801 C802 10pF/3KV 470uF/25V C824 R801 D801 3.6K 1/10W 0.1uF R856 1K 1/10W 1% BAV99 R819 R804 1/4W 1/8W...