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19" LCD Color Monitor AOC 919Pz&919Sz&919Vz
Service
Service
Service
919Pz 919Sz&919Vz
Horizontal Frequency
30-80 KHz
Table of Contents
Des
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Revision List Version Release Date Revision History Customer Model TPV Model Name T9AHMJDBK1K3DN 919Pz T9AHMJDMKASDDN T9AHMJDBK1KPAN A00 Sep.16.2010 Initial release 919Sz T9AHMJDMK1SDAN T9AHMJDBK1K2DN 919Vz T9AHMJDLK13ADN A01 Nov.08.2010 Add new model 919Vz T9AHMJDTKA1RDN A02 Dec.02.2010 Add new model 919Vz T9AHMJDLK13ADN 919Pz T9AGMJDBKNK3DN A03 Dec.14.2010 Add new models 919Sz T9AGMJDBKMKPAN 919Vz T9AGMJDBKMK2DN A04 Jan.18.2011 Add new model 919Vz T9AGMJDEKM6ADN A05 Jan.27.
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Important Safety Notice Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service procedures recommended by AOC and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended. It is important to note that this manual contains various CAUTIONS and NOTICES w
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1. Monitor Specifications Model number 919Pz Driving system TFT Color LCD Viewable Image Size 48.3cm diagoanl Pixel pitch 0.294mm(H) x 0.294mm(V) LCD Panel Video R, G, B Analog lnterface & Digital Interface Separate Sync. H/V TTL Display Color 16.7M Colors Dot Clock 135 MHz Horizontal scan range 30 kHz - 80 kHz Horizontal scan Size(Maximum) 376.32mm Vertical scan range 55 Hz - 75 Hz Vertical scan Size(Maximum) 301.056mm Optimal preset resolution 1280 x 1024 (60 H
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Model number 919Sz&919Vz Driving system TFT Color LCD Viewable Image Size 48.3cm diagoanl Pixel pitch 0.294mm(H) x 0.294mm(V) LCD Panel R, G, B Analog lnterface (for 919Sz) Video R, G, B Analog lnterface & Digital Interface(for 919Vz) Separate Sync. H/V TTL Display Color 16.7M Colors Dot Clock 135 MHz Horizontal scan range 30 kHz - 80 kHz Horizontal scan Size(Maximum) 376.32mm Vertical scan range 55 Hz - 75 Hz Vertical scan Size(Maximum) 301.056mm Optimal preset
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2. LCD Monitor Description The LCD monitor will contain a main board, a power board and a 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. Monitor Block Diagram CCFL Drive. Flat Panel and CCFL backlight Power Board RS232 Connector Main Board (Include: adapter, inverter, audio) For white balance adjustm
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3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control knobs 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. * Press the power button to turn on the monitor. The power indicator will light up. 3.2 Control Buttons For 919Pz 1 Source(Auto) / Exit 2 Eco mode / - 3. Volume / + 4. Menu / Enter 5.
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For 919Sz&919Vz 1 Source(Auto) / Exit 2 Eco mode / - 3. Volume / + 4. Menu / Enter 5. Power Button & Indicator 8
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3.3 OSD Menu • Press the MENU-button to activate the OSD window. • Press+ or - to navigate through the functions. Once the desired function is highlighted, press the MENU-button to activate it.If the function selected has a sub-menu, press + or - again to navigate through the sub-menu functions.Once the desired function is highlighted, press MENU-button to activate it. • Press+ or - to change the settings of the selected function. To exit and save, select the exit function. If you want
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Function Control Illustration Luminance Adjust Range Description Brightness 0-100 Backlight Adjustment Contrast 0-100 Contrast from Digital-register. Standard Mode Standard Text Mode Text Eco mode Internet Mode Internet Game Mode Game Movie Mode Movie Sports Mode Sports Gamma1 Adjust to Gamma1 Gamma Gamma2 Adjust to Gamma 2 Gamma3 Adjust to Gamma 3 Off Disable dynamic contrast ratio DCR On Enable dynamic
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Adjust the horizontal position of V.Position 0-100 the picture. Color Temp. Recall Warm Color Temperature Warm from EEPROM. 6500K Recall Normal Color Normal Temperature from EEPROM. 7300K Recall Cool Color Temperature Cool from EEPROM. 9300K Recall SRGB Color Temperature sRGB from EEPROM. Red Red Gain from Digital-register User Green Green Gain Digital-register. Blue Blue Gain from Digital-register Color Boost Disable or Enable Full Enhance F
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OSD Timeout 5-120 Adjust the OSD Timeout Transparence 0-100 Adjust the transparence of OSD Language Select the OSD language Extra Auto Select to Auto Detect input signal Select Analog Sigal Source as Analog Input Input Select Select Digital Sigal Source as Digital Input Auto Config yes or no Auto adjust the picture to default Select wide or 4:3 format for Image Ratio wide or 4:3 display DDC-CI yes or no Turn ON/OFF DDC-CI Support Select timing to turn off the Of
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4. Input/Output Specification 4.1 Input Signal Connector Analog connector Pin Number 15-Pin Side of the Signal Cable 1 Video-Red 2 Video-Green 3 Video-Blue 4 N.C. 5 Detect Cable 6 GND-R 7 GND-G 8 GND-B 9 +5V 10 Ground 11 N.C. 12 DDC-Serial data 13 H-sync 14 V-sync 15 DDC-Serial clock DVI connector (FOR 919Pz&919Vz) Pin No. Signal Name Pin No. Signal Name Pin No. Signal Name 1 TMDS Data 2- 9 TMDS Data 1- 17 TMDS Data 0- 2 TMDS Data 2+ 10 TMDS Data 1+ 18 TMDS Data 0+
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4.2 Factory Preset Display Modes Stand Resolution Horizontal Frequency(kHz) Vertical Frequency(Hz) VGA 640×480@60Hz DMT 31.469 59.940 Mac-mode 640×480@67Hz MAC 35.000 66.667 VGA 640×480@72Hz DMT 37.861 72.809 VGA 640×480@75Hz DMT 37.500 75.000 Dos-mode 720×400@70Hz DOS 31.469 70.087 SVGA 800×600@56Hz DMT 35.156 56.250 SVGA 800×600@60Hz DMT 37.879 60.317 SVGA 800×600@72Hz DMT 48.077 72.188 SVGA 800×600@75Hz DMT 46.875 75.000 Mac-mode 832×624@75Hz MAC 49.725 74.500 XGA 1024×768@60Hz
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4.3 Panel Specification 4.3.1 General Features HannStar Display model HSD190MEN4-A* is a color active matrix thin film transistor (TFT) liquid crystal display (LCD) that uses amorphous silicon TFT as a switching device. This model is composed of a TFT LCD panel, the voltage reference, common voltage, DC-DC converter, column, and row driver circuit. This TFT LCD has a 19-inch diagonally measured active display area with SXGA resolution (1024 vertical by 1280 horizontal pixel array). 4.3.
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Back-Light Unit 4.3.4 Optical Characteristics 16
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5. Block Diagram 5.1 Main Board DVI for 919Pz&919Vz 14.31818MHZ Panel Interface (X401) (CN301) Scalar IC TSUMO58QWHL-LF FLASH ROM Key Control Interface MX25L2026MI (Include ADC, OSD, MCU) (CN401) (U402) (U401) D-Sub Connector DVI Connector (CN101) (CN102) 17
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5.2 Power Board AC input Bridge 16V Rectifier Transformer EMI filter Rectifier diodes and Filter 5V Start Resistor (R904,R905) Feedback PWM Control Circuit Power Switch (IC901) (Q901) Photo coupler (IC903) 16V Output Transformer MOSFET (PT801) Circuit (Q805, Q806) Lamp 5V PWM Control Feedback ON/OFF TA9687GN Circuit DIM (IC801) PID Audio Power Amplifier CN601 (Phone Jack) +5V APA2069JITUL CN602 (IC601) 18
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6. Schematic 6.1 Main Board 715G3329 1 2 DVI for 919Pz&919Vz FB102 100OHM1/16W VGA_B+ 1 2 R105 C102 DSUB_B+ 5 BEAD 47N 16V H_Sync R102 0R05 1/10W R103 1K1/16W R108 C105 DSUB_H 5 V_Sy nc R104 1K1/16W 5pF 50V DSUB_V 5 75OHM1/16W 100OHM1/16W R106 R107 C103 C104 VGA_B- R109 C106 DSUB_B- 5 47N 16V 2.2K1/16W 2.2K1/16W 22P 50V 22P 50V U104 470OHM1/16W AZC199-04S ESD_VCC R110 C107 DSUB_SOG 5 DSUB_SCL 1 6 H_Sy nc FB103 1000pF 50V I/O1 I/O4 2 5 GNDVDD CN101 DSUB_SDA 3 4 V_Sy nc VGA_G+ 1 2 R111 C
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CN301 PA[0..9] PB[0..9] 5 PA[0..9] 5 PB[0..9] PB0 LVB3P LVB0M RXO0- 30 PA0 LVA3P PB1 LVB3M CN302 LVB0P RXO0+ 29 PA1 LVA3M PB2 LVBCKP LVB1M RXO1- 28 PA2 LVACKP PB3 LVBCKM LVB1P RXO1+ 27 PA3 LVACKM PB4 LVB2P 29 30 LVB2M RXO2- 26 PA4 LVA2P PB5 LVB2M 27 28 LVB2P RXO2+ 25 PA5 LVA2M PB6 LVB1P LVB0M RXO0- 25 26 RXO0+ LVB0P 24 PA6 LVA1P PB7 LVB1M LVB1M RXO1- 23 24 RXO1+ LVB1P LVBCKM RXOC- 23 PA7 LVA1M PB8 LVB0P LVB2M RXO2- 21 22 RXO2+ LVB2P LVBCKP RXOC+ 22 PA8 LVA0P PB9 LVB0M LVBCKM RXOC- 19 20 RXOC+
