Acer V193W - bm - 19" LCD Monitor Service Manual
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Acer V193W - bm - 19" LCD Monitor Service Manual

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Acer V193W
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Summary of Contents for Acer V193W - bm - 19" LCD Monitor

  • Page 1 Acer V193W Service Guide...
  • Page 2 Service Guide Version and Revision Version Release Date Revision History TPV model Mar.-17-2008 Initial Release T97AMRD8W7ABNN...
  • 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

    Chapter 1 Monitor Features Introduction Scope This specification defines the requirements for the 19” 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. Description The LCD monitor is designed with the latest LCD technology to provide a performance oriented product with no radiation.

  • 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 (< 1 cd/m Viewing distance 40 cm for LCD performance, 20 cm for LCD failures ＞30 minutes Warm up time Analog Input signal 700 mVss Control temperature...

  • Page 9: Lcd Monitor General Specification

    LCD Monitor General Specification Driving system TFT Color LCD Active Display Area 408.24 (H) x 255.15 (V) Pixel pitch 0.2835(H) x 0.2835(W) LCD Panel Contrast Ratio 800 : 1 Response time Luminance of White 300(Typ.) cd/㎡ Separate Sync. H/V TTL Input H-Frequency 30kHz –...

  • Page 10: Lcd Panel Specification

    LCD Panel Specification TPM190A1(PW01) V0A1 is a 19” wide TFT Liquid Crystal Display module with 2ch-LVDS interface. This module supports 1440 x 900 WXGA+ mode and can display 16.7M colors. The inverter module for Backlight is not built in. General Specifications...
  • Page 11 Function Block Diagram Electrical Characteristics...
  • Page 12 Optical Specifications...

  • Page 13: Support Timing

    Support Timing Horizontal Vertical Nominal Nominal Nominal Sync Sync Pixel Mode Resolution Total Frequency Freq. Polarity Polarity Clock +/- 0.5kHz +/- 1 Hz (MHz) 640x480@60Hz 800 x 525 31.469 59.940 25.175 640x480@72Hz 832 x 520 37.861 72.809 31.500 640x480@75Hz 840 x 500 37.500 75.00 31.500...

  • Page 14: Monitor Block Diagram

    Monitor Block Diagram The LCD MONITOR will contain a main board, a power board, and key 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 15: Main Board Diagram

    Main Board Diagram Crystal LCD Interface (X401) (CN403) 14.31818MHZ Scalar IC TSUM1PFR-LF (Include MCU ,ADC, OSD) (U401) H sync V sync Key Board D-Sub Control Connector (CN401) (CN101)

  • Page 16: Software Flow Chart

    Software Flow Chart...
  • Page 17 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 18: Main Board Layout

    Main Board Layout Symbol Description Symbol Description U401 IC TSUM1PFR-LF CN401 WAFER 6PIN U404 IC AP1117D33LA TO252-3L ATC CN404 WAFER 9P RIGHT ANELE PITCH U103 IC AZC099-04S SOT23-6L CN403 CONNECTOR U102 IC AZC099-04S SOT23-6L X401 14.31818MHZ/32PF/49US U402 SST25LF020A-33-4C-SAE CN101 D-SUB 15PIN...

  • Page 19: Installation

    Installation To install the monitor on your host system, please follow the steps below: Steps 1 Connect the video cable A：Make sure both the monitor and computer are switched off. B：Connect the VGA video cable to the computer. 2 Connect the power cord Connect the power cord to the monitor, then to a properly grounded AC outlet.

  • Page 20: Attaching/Removing The Base

    Attaching/Removing the Base Attaching: Align the release button on the bottom of the monitor with the corresponding slots on the bottom of the base. Removing: Press the release button as indicated, then pull in the direction of the arrow to remove the base.

  • Page 21: 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. The power cord should be connected.

  • 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 26 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 27: 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 28: 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 as the following indicator. (Fig 1) Fig 1 2. Remove the screws as following indicate to release base stand. (Fig 2) Fig 2...
  • Page 29 3. Remove the back cover and bezel. (Fig 3) Fig 3 4. Remove the lamp connectors and the screw. (Fig 4-5) Fig 4 Fig 5...
  • Page 30 5. Remove the screws to remove the panel. Put attention to the LVDS cable.(Fig 6-7) Fig 6 Fig 7 6. Remove the screws to remove the main board and power board.( Fig 8) Fig 8...

  • Page 31: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting This chapter provides troubleshooting information for the V193W: 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 U404 Pin2=3.3V, Measure CN404...
  • Page 32 2. No Picture (LED is orange) No picture The button if under X401 oscillate Replace X401 control waveform is normal Check Correspondent Check reset circuit of component U401 is normal Measure U404 Pin2=3.3V, Replace U401 X401 oscillate waveform is normal Replace U404 Replace X401 Check HS/VS from...
  • Page 33 3. Panel Power Circuit White screen Measure Q404 base X401 oscillate waveform is normal is low level? Replace X401 Check CN403 is solder Check reset circuit of and Q404,Q405 is OK? U401 is normal Check Correspondent Check Correspondent component. component. Replace U401 Replace PANEL...
  • Page 34 4. Key Board OSD is unstable or not working Is Key Pad Board connecting normally? Connect Key Board Replace Button Switch Is Button Switch normally? Replace Key Board Is Key Pad Board normally? Check Main Board...
  • Page 35 5. Power Board No power No power Check to CN902 Pin10,11 =14V and Pin6,7 = 5 V Check Interface board Check AC line volt 120V or 220V Change F901, Check BD901, L901, IC901 Check the voltage of C905(+) Check bridge retified circuit Check start voltage for the Pin2 of IC901 Change IC901 Check the auxiliary voltage is smaller than 20V...
  • Page 36 W/LED No Backlight Check the 14V voltage input Check the adapter Check ON/OFF signal Check Interface board Check IC801 pin12=12V? Change Q805.Q808 or Q810 Check the pin9&10 of IC801 have PWM wave Change Q801/Q804/Q811/Q812 Replace IC801 Check the resonant wave of pin3 &...

  • Page 37: Chapter 5 Connector Information

    Chapter 5 Connector Information The following figure shows the connector locations on the monitor:...

  • Page 38: Chapter 6 Fru (Field Replacement Unit) List

    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. Exploded Diagram (Model: V193W)
  • Page 39 Part List Above picture show the description of the following component. Item Picture Description Base Main Frame Panel...
  • Page 40 Power Board Main Board...

  • Page 41: Schematic Diagram

    Chapter 7 Schematic Diagram Main Board H_Sy nc R101 0R05 1/10W 5% R102 100R 1/16W 5% DSUB_H V_Sy nc R103 100R 1/16W 5% FB102 DSUB_V R104 C101 VGA_B+ DSUB_B+ VCC3.3 R105 R106 C102 C103 BEAD 2K2 1/16W 5% 2K2 1/16W 5% 100R 1/16W 5% 0.047uF 22pF...
  • Page 42 AVDD VDDP VDDC VCC3.3 VDDP AVDD FB401 U401 VCC3.3 300OHM VCTRL VCTRL C403 C404 LVA3P 0.1uF/16V 0.1uF/16V DSUB_R+ RIN0P LVA3M DSUB_R- RIN0M PA[0..1] DSUB_G+ GIN0P PA[0..1] DSUB_G- GIN0M LVA2P DSUB_SOG SOGIN0 LVA2M DSUB_B+ BIN0P LVA1P DSUB_B- BIN0M LVA1M VCC1.8 VDDC DSUB_H HSY NC0 LVA0P...
  • Page 43 PANEL_VCC CN403 PA[0..1] PB[0..9] PA[0..1] PB[0..9] R434 C420 PA[4..9] PA[4..9] 330 OHM 1/4W 0.1uF/16V CMVCC 2006-11-7 Add pull up 4K7 to MVCC AO3401L CMVCC R433 C419 R435 10K 1/16W 5% 0.1uF/16V PANEL_VCC 4K7 1/16W 5% Q405 AO3401 R436 FB402 CONN 100K 1/16W 5% PPWR_ON# Q404...
  • Page 44 Due to LG doen't request PC'99 Function. 2008/01/14 BAT99 : If 0.05A,VF=1.0V D401 R458 BAV70 : If 0.05A,VF=1.0V 0Ohm 1/16W It's need to use Low Dropout Regulator. ESD_VCC 2 OTHER BAV99 DSUB_5V CMVCC DSUB_5V 2 5, 6 CMVCC R458 VCC3.3 VCC3.3 D401 BAV99...
  • Page 45 Power board...

  • Page 47: Key Board

    Key board ZD001 UDZSNP5.6B add ZD001 and ZD002 for ESD solution LED001 LED CN001 ZD002 UDZSNP5.6B LBADC1 R001 2K OHM 1/16W LBADC2 LED_BLUE# POWER_Key LED_RED# LED_BLUE# LED_RED# R002 2K OHM 1/16W C001 C002 C003 C004 C005 CONN R003 1K 1/16W 5% MENU LBADC1 VOL-...

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