Belinea 101910 Content Chapter Page A. WARNING B. SAFETY PRECAUTIONS 1. DIMENSIONS 2. GENERAL INFORMATION 3. SPECIFICATIONS 4. THEORY OF OPERATION 5. CONTROL LOCATION 6. NECESSARY EQUIPMENT LIST 7. BLOCK DIAGRAM 8. CONDUCTOR VIEW 9. SCHEMATIC DIAGRAM SIGNAL BD 10. SCHEMATIC DIAGRAM POWER BD 11.
Belinea 101910 WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Belinea 101910 SAFETY PRECAUTIONS 1. CAUTION: No modification of any circuit should be attempted. Service work should only be performed after you are through familiar with all of the following safety checks and servicing guide lines. 2. SAFETY CHECK Care should be taken while servicing this LCD display. Beware of the high voltage used in the inverter circuit.
Belinea 101910 2. GENERAL INFORMATION 2.1. OUTLINE This monitor is a 19" multi-scan color LCD display with the following features / OSD (on screen display) control allows easy user adjustment. Power saving function, which helps saving power, is also one of the highlights of this model.
Belinea 101910 3. SPECIFICATION 3.1. Outline 3.1.1 Front Indication: POWER SW, LED (Green/Amber), UP, DOWN, LEFT, RIGHT, Set/Auto and MENU keys are located on the front panel. 3.1.2 Video signal cable connector, audio line-in receptacle and AC inlet are located on the back side cabinet.
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Belinea 101910 3.4. CONNECTORS 3.4.1 AC inlet: CEE22 typed connector 3.4.2 Audio: Line-in receptacle PHONEJACK STEREO connector for analog input: 15P Mini D-Sub 3.4.3 Video signal cable MNEMONI SIGNAL DB15HD Red Video Green Video Blue Video None Ground (DDC return)
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Belinea 101910 connector for digital input: 24P DVI-D 3.4.4 Video signal cable Signal Name Description RX2- RX2- TMDS negative differential input, RX2+ RX4- channel 2 RX4+ RX2+ TMDS positive differential input, channel 2 RX1- RX1+ Logic Ground RX3- RX3+ RX4- Reserved.
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Belinea 101910 3.5. ELECTRICAL SPECIFICATIONS 3.5.1 Standard conditions Display area (HxV) 376.32 x 301.06 mm Video signal level 0.7 Vpp Contrast Brightness Ambient 25 +/- 5 C degrees Input voltage AC 230,50Hz Warming up time More than 30 Display mode 1280 x 1024 3.5.2 POWER...
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Belinea 101910 3.5.3 Signal level and input impedance 3.5.3.1 Video Signal level This LCD display is adjusted at the factory using 0,7 Vpp Video signal. 3.5.3.2 Sync Signal level H/V Separate: TTL level 3.5.3.3 Input impedance Analog video input: 75 ohms Digital video input: 100 ohms Sync input: >...
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Belinea 101910 3.5.4 Display Area 376.32 x 301.056 Display area : 3.5.5 Preset Timings The product has 32 memory modes in total. 15 modes are preset and 17 modes are user definable. Format 640x350@70Hz 720x400@70Hz Pixel Clock(MHz) 25.176 28.320 Horizontal...
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Belinea 101910 Format 640X480@60Hz 640x480@72Hz 640x480@75Hz Pixel Clock(MHz) 25.175 31.500 31.500 Horizontal Sync Polarity Frequency(KHz) 31.469 37.861 37.500 Total Time(pixels) Display Time(pixels) Sync Width(pixels) Back Porch(pixels) Front Porch(pixels) Blank time(pixels) Vertical Sync Polarity Frequency(Hz) 59.940 72.809 75.00 Total Time(lines) Display Time(lines)
Belinea 101910 3.5.6 General performance 3.5.6.1 Maximum pixel clock 135 MHz 3.5.6.2 Maximum luminance Test conditions: 100% all white pattern, brightness set to Maximum typical: 250 cd/m² min: 200 cd/m² 3.5.6.3 Brightness variation Value 75 % Variation (C / A x 100)
Belinea 101910 4. THEORY OF OPERATION This section describes the function of the LCD monitor per functional block. The Belinea 101910 monitor includes MB board (including audio board function inside), power board and button board. 4.1 MB BOARD The MB board is a two-layer, single-landed design with ground and ground planes provided.
Belinea 101910 d) DVI(Digital) receiver : The MST8131A chip has DVI interface. The digital signals are connected to MST8131A as described below: Pin Name Pin Number DVI input channel + RED DVI input channel - RED DVI input channel + GREEN...
Belinea 101910 P3.1/TXD/HSDA SDA-VGA/Txd (Debug) P3.2/INT0 P1.1 SDA(Debug) P1.2 SCL(Debug) P6.1/AD1 RESET P5.3 LED-Orange P4.1 Audio-Mute P5.5 Audio-Stby-Power P4.0 Inverter On/Off P5.0 Panel power On/Off 4.1.3 Audio controller TDA7496L (AU1) The TDA7496L is a stereo 2W+2W class AB power amplifier. Features of the TDA7496L include linear volume(pin6), Stand-by(pin11) and mute(pin12) functions.
Belinea 101910 5. CONTROL LOCATION Button Define OSD Menu Trigger OSD Main Menu / Clear OSD 1. Select OSD Main Menu Item 2. Trigger Brightness/Contrast Menu. 1. Select OSD Main Menu Item DOWN 2. Trigger Brightness/Contrast Menu. POWER Switch Power ON/OFF 1.
Belinea 101910 LED Status Color Status Description Green Normal status Enter Sleep Mode status or use “Power + Auto” key enter Amber factory mode MAXDATA Servicemanual 111908 Page 25 - Confidential -...
Belinea 101910 Dialog Overview OSD Main Menu When user press the Menu key under none OSD status will trigger this menu appear for detail parameters adjust. This menu will display about 45 seconds if no one press other key, otherwise will refresh display time.
Belinea 101910 When user press the Left or Right keys Volume Menu under none OSD status will trigger this menu appear for Volume adjust. Use the Left & Right keys adjust the volume value, and use the Up & Down keys switch the Mute status.
Belinea 101910 Out Of Range When user input the video signal out of spec this dialog will appear about 20 seconds. And then enter the Sleep mode. MAXDATA Servicemanual 111908 Page 28 - Confidential -...
Belinea 101910 OSD Main Menu & Contrast Adjustment Brightness Brightness (Up&Down): Adjust the brightness of the display. Contrast (Left&Right): Adjust the difference between the light and dark areas. Tracking Adjustment CLOCK: Adjust to minimize any vertical bars or stripes visible on the screen background.
Belinea 101910 Adjustment Position V-Position: Adjust the vertical position of the picture. H-Position: Adjust the horizontal position of the picture. There are four items for color Color Adjustment adjustment: 9300K: Bluish white 6500K: Reddish white User defined: Red, Green, Blue. Adjust to set your own color level.
Belinea 101910 LANGUAGE: Other Multi- Language selection OSD POSITION: Adjust the OSD window position on the screen. INFORMATION: Display Information Dialog or not when input timing changed. Factory1 Adjustment This page only visible in factory mode R,G,B OFFSET: Adjust current RGB cut off level R,G,B GAIN: Adjust current RGB Driver value.
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Belinea 101910 Factory2 Adjustment This page only visible in factory mode AUTO BURN: Use the chip set internal pattern for hot running monitor panel and inverter. AUTO COLOR: Perform Auto Balance measurement. AUTO COLOR 1: Perform Auto Balance measurement by chip set internal signal. And...
Belinea 101910 6. NECESSARY EQUIPMENT LIST Item 1 Personal Computer with Windows 98/Me/XP 2 Luminance Meter Minolta CA 110 3 Video Generator : Chroma 2000,2135,2250 or equivalent 4 like test program(Display Mate) 5 Color Analyzer : Minolta CA110, Chroma or equivalent...
Belinea 101910 2. No Characters, Missing one color No Characters or missing one color Check CN6 12V Output Change Power Board Check L33, 5V Output Check or Change U21, Q13, Q17 Check L34, 2.5V output Check or Change U22 Change Power Board Check L31, 3.3V output...
Belinea 101910 3. No Audio No Audio Check Input Signal AJ1 Check Input source or Change AJ1 Check ACN1 to Spea ker O Change Speaker or ACN1 (Cable) Check AU1 (pin6) Volume and AQ4 OK? Change AQ4 Check AU1 (pin12)
Belinea 101910 15. Auto White Balance Procedure Connect signal to monitor. The display signal need contain real black and full white. Press "Auto" button (don't release) when power ON (LED display Amber). Press OSD select FACTORY 2, Auto Color, RUN (For AD converter calibration on R, G and B gain, offset).
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