AOC Vibrant VL7A9DA Service Manual
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AOC Vibrant VL7A9DA Service Manual

AOC Vibrant VL7A9DA Service Manual

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SERVICE MANUAL
LCD Monitor
VL7A9DA

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Summary of Contents for AOC Vibrant VL7A9DA

  • Page 1 SERVICE MANUAL LCD Monitor VL7A9DA...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS PAGE 1. SPECIFICATIONS ....................GENERAL SPECIFICATIONS ...........…....LCD MONITOR DESCRIPTION ..............INTERFACE CONNECTOR ..............……. 2. PRECAUTION AND NOTICES ................ASSEMBLY PRECAUTION ................. OPERATIONG PRECAUTION ..............STORAGE PRECAUTION …................ HIGH VOLTAGE WARNING ............... 3. OPERATING INSTRUCTIONS ................4. ADJUSTMENT ......................ADJUSTMENT CONDITIONS AND PRECAUTIONS .......
  • Page 3 10. PCB LAYOUT ..............………………………... 11. MAINBOARD SCHEMATIC DIAGRAM …..........12. ADAPTER SCHEMATIC DIAGRAM 13.AUDIO SCHEMATIC DIAGRAM...

  • Page 4: Specifications

    1. SPECIFICATIONS FOR LCD MONITOR General specifications LCD-PANEL: Active display area 17 inches diagonal 0.264 mm x 0.264 mm Pixel pitch 1280 x 1024 RGB vertical stripe arrangement Pixel format Display Color: 8-bit, 16.7 million colors External Controls : Power On/Off, Auto key, Left key, Right key (for 4-key) OSD menu Controls Contrast, Brightness, Focus, Clock, H-position, V-position, Language, Recall-7800, Recall-6500, Reset, Exit-OSD, Red, Green, Blue, Selected Dos-resolution...

  • Page 5: Lcd Monitor Description

    LCD MONITOR DESCRIPTION The LCD MONITOR will contain an main board, an Inverter module, keyboard and External Adapter which house the flat panel control logic, brightness control logic, DDC and DC-DC conversion The Inverter module will drive the backlight of panel. The Adapter provides the 12V DC-power 5 Amp to Main-board and Inverter module.
  • Page 6 2. PRECAUTIONS AND NOTICES ASSEMBLY PRECAUTION (1) Please do not press or scratch LCD panel surface with anything hard. And do not soil LCD panel surface by touching with bare hands (Polarizer film, surface of LCD panel is easy to be flawed) In the LCD panel, the gap between two glass plates is kept perfectly even to maintain display characteristic and reliability.

  • Page 7: Operating Instructions

    3. OPERATING INSTRUCTIONS This procedure gives you instructions for installing and using the LM700 LCD monitor display. Position the display on the desired operation and plug–in the power cord into External Adapter AC outlet. Three-wire power cord must be shielded and is provided as a safety precaution as it connects the chassis and cabinet to the electrical conduct ground.

  • Page 8: Adjustment

    4. ADJUSTMENT ADJUSTMENT CONDITIONS AND PRECAUTIONS Adjustments should be undertaken only on following function: contrast, brightness focus, clock, h-position, v- position, red, green, blue since 6500 color & 7800 color. ADJUSTMENT METHOD Press MENU button to activate OSD Menu or make a confirmation on desired function, Press Left/Right button to select the function or done the adjustment.
  • Page 9 adjust the BLUE on OSD, until chroma 7120 indicator reached B=100 repeat above procedure ( item 8,9,10) until chroma 7120 RGB value meet the tolence =100±2 switch the chroma-7120 to xyY mode With press “MODE” button Adjust the Contrast on OSD window until the Y measurement on chroma 7120 reached the value Y= 180 cd/m Press 78 on OSD window to save the adjustment result b.

  • Page 10: Front Panel Control Knobs

    Clock adjustment Set the Chroma at pattern 63 (cross-talk pattern) or WIN98/95 shut-down mode (dot-pattern). Adjust until the vertical-Stripe-shadow as wide as possible or no visible. This function is adjust the PLL divider of ADC to generate an accurate pixel clock Example : Hsyn = 31.5KHz Pixel freq.

  • Page 11: Circuit & Software Description

    5. CIRCUIT-DESCRIPTION SPECIAL FUNCTION with PRESS-KEY A). press Menu button during 2 seconds along with plug-in the DC Power cord: That operation will set the monitor into “Factory- mode”, in Factory mode we can do the White balance adjustment with RS232 , and view the Backlight counter (this counter is use to record the panel activate hours ,for convenient the maintainer to check the panel backlight life time) In Factory mode, OSD-screen will locate in left top of screen.
  • Page 12 SIMPLE-INTRODUCTION about VL7A9DA chipset GMZAN1 ( all-in-one chip solution for ADC, OSD, scalar and interpolation) : USE for computer graphics images to convert analog RGB data to digital data with interpolation process, zooming, generated the OSD font , perform overlay function and generate drive-timing for LCD-PANEL. M6759 (ALI- MCU, type 8052 series with 64k Rom-size and 512 byte ram) : Use for calculate frequency, pixel-dot , detect change mode, rs232-commu nication, power-consumption control, OSD-index warning , …etc.
  • Page 13 Main-board Block diagram Input analog RGB & H,V,& ddc signal & Rs232 communication GMZAN1 (U200) Data Digital RGB DDC-chip LVDS chip (U601, PANEL U602) Panel Control Signal: Dhs, Dvs, Dclk Oscillator 50 mhz Panel Power 5V Communication signal: Hclk,Hfs,Hdata0 Panel-Power Control (U202) MCU ( U302 ) Crystal 20 mhz...

  • Page 14: Software Flow-Chart

    SOFTWARE FLOW CHART Power-On Subrotine CHART POWER-ON START Initial MCU I/O, Interrupt vector & Ram Initial 1.POC (backlight counter) Check Eeprom is empty ? 2. Clr all mode value Check White-balance data(6500 & 7800) same with the backup data ? Check POC( backlight counter) data same with the backup data ? IF not same, overwrite the data with backup value.
  • Page 15 MAIN SUBROTINE LOOP Main loop start Process Power-saving status ( according to below flow-chart result) Check GMZAN IFM status .is change or not. And check Signal cable status ( cable not connected or not ) ** IFM is the register which measured the HSYN & Vsyn status Wake-up GMZAN1 Yes, IFM have change (because GMZAN1 was in...

  • Page 16: A). Interface-Board Trouble Shooting Chart

    6. A). Interface-Board Trouble-Shooting chart *Use the PC Win 98 white pattern, with some icon on it, and Change the Resolution to 640x480 60 Hz / 31 KHz **NOTICE : The free-running freq. of our system is 48 KHz / 60 Hz, so we recommend to use another resolution to do trouble shooting, this trouble shooting is proceed with 640x480 @60Hz 31Khz NO SCREEN APPEAR DC-Power Part...
  • Page 17 PANEL-POWER CIRCUIT Check the PPWR panel power relative circuit, R223, Q200,U202(pin 5,6,7,8) In normal operation, when LED =green, R223 check R225 should have response from 12V to 0V should =0 v, When we switch the power switch from on to off If PPWR no-response when the power switch Turn on and turn off, replace the U200-GMZAN1 OK,R225 have response...
  • Page 18 II (a) THE SCREEN is Abnormal , stuck at white screen, OSD window can’t appear, but keyboard & LED was normal operation. At general, this symtom is cause by missing panel data or panel power, so we must check our wire-harness which connected to panel or the panel power controller (U202) Check if the Wire harness from CN601 &...
  • Page 19 KEYBOARD BLOCK check Check U302 MCU pin 43,42,41,40,39 at Mechanical was stuck, Check ! High state(5V)? without press any key Replace Tact-switch SW105 at keyboard if still no work replace U302 MCU at main-board and Press power key and check U302 pin 43 check MCU relative reset circuit, and crystal = low (0V) ? Check U302 pin 38 (LED green) will have...
  • Page 20 POWER-BLOCK check *Note : the Waveform of U304 pin 2 can determined the power situation stable rectangle waveform with equal duty, freq around 150K-158KHz that means all power of this interface board is in normal operation ,and all status of 5V & 3.3V is working well unstable or uneven rectangle waveform without same duty, that means ABNORMAL operation was happened, check 3.3V or 5V ,if short-circuit or bad component rectangle waveform with large spike &...
  • Page 21 III.ALL SCREEN HAS INTERFERENCES OR NOISE, CAN’T BE FIXED BY AUTO KEY ** NOTE: There is so many kind of interferences, 1). One is cause by some VGA-CARD that not meet VESA spec or power grounding too bad that influence our circuit 2).other is cause by external interferences, move the monitor far from electronic equipment.( rarely happened) Use DOT-pattern, or win98/99 shut-down...
  • Page 22 There is an interferences in DOS MODE NOTE :the criteria of doing AUTO-CONFIGURATION : must be a full-size screen, if the screen not full , the auto- configuration will fail. So in dos mode ,just set your “CLOCK” in OSD-MENU to zero or use some EDITOR software which can full fill the whole screen (ex: PE2, HE) and then press “AUTO”...

  • Page 23: B). Inverter - Module Trouble Shooting Chart

    SAMPO CORPORATION TROUBLE SHOOTING OF CHI-MEI INVERTER ( DIVTL0037-D42- -) 1.SAMPO PART NO .: L0037 ,AOC PART NO.: 79AL17-1-S 2.SCOPE : this is to specify the requirements of the subject parts used in CHI-MEI (M170E1) 17 inch (4 C.C.F.L.) LCD monitor.
  • Page 24 SAMPO CORPORATION TROUBLE SHOOTING OF CHI-MEI INVERTER ( DIVTL0037-D42- -) 5.FUNCTION SPECIFICATIONS: The data test with the set of SAMPO, and the test circuit is as below. ITEM SYMBOL MIN. TYP. MAX. UNIT REMARK Input voltage 10.8 13.2 Input current 2200 2500 output current...
  • Page 26 SAMPO CORPORATION TROUBLE SHOOTING OF CHI-MEI INVERTER ( DIVTL0037-D42- -) 8.PART LIST 8-1 COMPONENTS LIST: PART NAME PART NUMBER DESCRIPTION SUPPLIER REMARK REF. CON1 CONNECTOR VCNCP0015-EJSTA S5B-PH-SM3-TB 2. CON2,3 VCNCP0014-PJSTA SM04(4.0)B.BHS-1-TB VCNCP0014-ZGLEA GL SM02(4.0)-WH2 GEAN-LEA SMD 0603 10KÙ 5% R1,2 RESISTOR VRMHNVA--103J-A YAGEO...
  • Page 27 SAMPO CORPORATION TROUBLE SHOOTING OF CHI-MEI INVERTER ( DIVTL0037-D42- -) 8-2 COMPONENTS LIST: REF. PART PART NUMBER DESCRIPTION SUPPLIER REMARK NAME VCLRCN1HB102K-A SMD 0805 1000PF/50V C10,11 VCLRCN1EB333K-A SMD 0805 0.033 µF/25V C12,13 VCMEBF2AB184J-P ARCO DIP 0.18µF/100V VCMECF2AC184J-P THOMSON DIP 0.18µF/100V DIP 22PF/3KV 10% C14,15,19, CAPACITOR VCDSEU3SL220K--...
  • Page 28 SAMPO CORPORATION TROUBLE SHOOTING OF CHI-MEI INVERTER ( DIVTL0037-D42- -) 9. TROUBLE SHOOTING 9-1 NO POWER: CHECK ON FUSE TO CHANGE FAIL F1 Vin=12 F1= 4.0A/63V TO CHANGE TO CHANGE TO CHECK ON Q4&Q6 L: Q4&Q3&Q11 PASS FAIL L: Q4&Q3& R: Q5&Q6&Q12 Vout = 9V R: Q5&Q6&...
  • Page 29 SAMPO CORPORATION TROUBLE SHOOTING OF CHI-MEI INVERTER ( DIVTL0037-D42- -) 9-2 HIGHT VOLTAGE PROTECTION: 1. SHORT R30 OPEN LOAD FAIL 2. TEST C14 INPUT POINT TO CHANGE ON VOLTAGE Vh=1600 ±100V rms PT1 OR PT2 PASS FUNCTION TEST OK! 9-3 OUTPUT CURRENT ABNORMALITY: FAIL 1 CHECK ON C6 FREQUNCY TO CHANGE ON C6...
  • Page 30 SAMPO CORPORATION TROUBLE SHOOTING OF CHI-MEI INVERTER ( DIVTL0037-D42- -) 9-4. ENBALE ABNORMALITY: IF ENBALE ABNORMALITY 1. TO CHECK IC PIN 9 TURN NO FAIL TO CHANGE ON Q1&Q2 HAVE 12 VOLTAGES FUNCTION TEST OK! PASS 9-5 DIMMING CONTROL ABNORMALITY: IF DIMMING ABNORMALITY TO CHECK R1&R2&C6&R33 HAVE IF DIMMING ABNORMALITY TO...
  • Page 31 - 9 - SAMPO CORPORATION TROUBLE SHOOTING OF CHI-MEI INVERTER ( DIVTL0037-D42- -) 9-6 TRANSFORMER ABNORMALITY: FAIL IF TRANSFORMER ABNORMALITY TO TO CHANGE ON C3&C4 CHECK C3&C4 CHIP OUTLINE OR OR TRANSFORMER TRANSFORMER PASS FUNCTION TEST OK! 10. INSTRUMENTS FOR TEST: 1.
  • Page 32 6 C). ADAPTER-MODULE Trouble shooting chart The following spec & block-diagram is offer by CHI-SAM –COMPANY, for External Adapter part number : 80AL17-1-CH ( Black), 80AL17-2-CH ( White) AC ADAPTER CH-1205 TROUBLE SHOOTING NO VOLTAGE O/P REPLACE CHECK BD101 F101 AC VOLT.
  • Page 33 IV. ADAPTER BOM LIST ( PART no. 80AL15-2-LI) Reference Part Quantity Cat.NO. BD101 DIODE BRIDGE KBL405G 600V/4A 15D7L405G6 CN101 AC POWER SOCKET 64P21-0001 BEAD1,BEAD2,BEAD3,BEAD4 BEAD 3.5*3.2*1.6mm 62C-353216 C116 CAP CER 102P/500V +-10% Y5P 99426A1025 C105 CAP CER 103P/500V +80-20% Z5V 99459F1033 C107,C108,C109, CAP CER 104P/50V +-10% X7R SMD(0805)
  • Page 34 41 PCB PCB FOR CH-1205 REV:D 11S43-0030 42 R117 RES 100 1/8W +-5% SMD(0805) 2242510000 43 J109,J110 RES 0 OHM 1/4W +-5% SMD(1206) 2243500000 44 R143 RES 1.8K 1/8W +-5% SMD(0805) 1 PCS 2242518010 45 R114 RES 100 1/4W +-5% SMD(1206) 2243510000 46 R124,R127 RES 10K 1/8W +-5% SMD(0805)
  • Page 35 86 FOR FRONT HEATSINK TCR- 05 15*25-ASAHI 85011-0001 87 FOR FRONT HEATSINK TCR- 10 10*20-ASAHI 85100-0001 #44 1L 35*40mm 80400-0001 FRONT COVER 129.3*63.8*19.34mm 0810400020 BASE COVER 129.3*63.8*18.7mm 0820400020 DC OUTPUT POWER CABLE UL1185#18AWG ø 56L1807811 5.5*ø2.5 *20.5,( & ) L=80CM FRONT HEATSINK FOR CH-1205 75170-0060...
  • Page 36 6 D). AUDIO-MODULE Trouble shooting chart I.) NO VOICE OUTPUT Plug-out the DC power , make sure the monitor is in OFF status . Check J1,J2 is well connected? Use OHM-METER measure U1 pin 2, 4 Measured J2 pin 4,5 & 2,3 is (channel-A ) is speaker well connected? well connected ? Measure U1 pin 10,12 ( channel B) is speaker...
  • Page 37 II.) SOUND DISTORTION Check U1 pin 2, 4 10, 12 is the Check U1 voltage output = VCC / 2 . ? CHECK SPEAKER AUDIO BOM Bill Of Materials September 7,2001 18:09:14 Page1 Item Quantity Reference Part ______________________________________________ C1,C2,C4 1uF 2200uF/25V 10uF/50V C6,C7...
  • Page 38 GMZAN1 The gmZAN1device utilizes Genesis’ patented third-generation Advanced Image Magnification technology as well as a proven integrated ADC/PLL to provide excellent image quality within a cost effective SVGA/XGA LCD monitor solution. As a pin-compatible replacement for the gmB120, the gmZAN1 incorporates all of the gmB120 features plus many enhanced features;...
  • Page 39 1.3 Pin Description Unless otherwise stated, unused input pins must be tied to ground, and unused output pins left open. Table 1 : Analog-to-Digital Converter PIN # Name I/O Description Digital power for ADC encoding logic. Must be bypassed with 0.1uF capacitor to ADC_VDD2 pin 78 (ADC_GND2) Digital GND for ADC encoding logic.
  • Page 40 Table 2 : Host Interface (HIF) / External On-Screen Display PIN # Name I/O Description Host Frame Sync. Frames the packet on the serial channel. Clock signal input for the 3-wire serial communication. HCLK Data signal for the 3-wire serial communication. HDATA Resets the gmZAN1 chip to a known state when low.
  • Page 41 Table 3 : Clock Recovery / Time Base Conversion PIN # Name I/O Description Digital power for Destination DDS (direct digital synthesizer). Must be bypassed DVDD with a 0.1uF capacitor to digital ground plane. Analog ground for Destination DDS DAC. Must be directly connected to the DAC_DGNDA analog system ground plane.
  • Page 42 Table 4. TFT Panel Interface Description PIN # Name 2pxl/clk 2pxl/clk 1pxl/clk 1pxl/clk 8bit 6-bit 8-bit 6-bit PD47 PD46 PD45 PD44 PD43 PD42 PD41 PD40 PD39 PD38 PD37 PD36 PD35 PD34 PD33 PD32 PD31 PD30 PD29 PD28 PD27 PD26 PD25 PD24 PD23 PD22...
  • Page 43 Description PIN # Name 2pxl/clk 2pxl/clk 1pxl/clk 1pxl/clk 8bit 6-bit 8-bit 6-bit PdispE This output provides a panel display enable signal that is active when flat panel data is valid. This output provides the panel line clock signal. This output provides the frame start signal. PCLKA This output is used to drive the flat panel shift clock.
  • Page 44 1.4 System-level Block Diagram CVDD ADC_VDD RVDDA gmZAN1 Core ADC_GND RGNDA Blue TCLK Green SVDDA RVDDA Hsync To Clock SGNDA Vsync Generator DVDDA DGNDA R+,G+,B+ Even Data On-Screen OSD-FSW OSD-FSW PCLKA Display OSD-CLK Controller OSD-HREF OSD-VREF PDISPE Odd Data MPU with HCLK EPROM +12V...
  • Page 45 1.5 Operating Modes The Source Clock (also called SCLK in this document) and the Panel Clock are defined as follows: The Source Clock is the sample clock regenerated from the input Hsync timing (called clock recovery) by SCLK DDS (direct digital synthesis) and the PLL. The Panel Clock is the timing clock for panel data at the single pixel per clock rate.
  • Page 46 1.5.4 Downscaling Panel Clock frequency < Source Clock frequency Panel Hsync frequency < Input Hsync frequency Panel Vsync frequency = Input Vsync frequency This mode is used when the input resolution is greater than the panel resolution, to provide enough of a display to enable the user to recover to a supported resolution.
  • Page 47 2. FUNCTIONAL DESCRIPTION Figure 3 below shows the main functional blocks inside the gmZAN1 2.1 Overall Architecture Figure 3. Block Diagram for gmZAN1 On-Screen Display Control Analog Triple Source Scaling Gamma Panel Timing Control Timing Engine Panel Measurement (CLUT) Control / Generation Dither Pixel...
  • Page 48 The SCLK frequency (1/SCLK period) can be set to the range of 10-to-135 MHz. Using the DDS (direct digital synthesis) technology the clock recovery circuit can generate any SCLK clock frequency within this range. The pixel clock (DCLK or destination clock) is used to drive a panel when the panel clock is different from SCLK (or SCLK/2).
  • Page 49 The table below summarizes the characteristics of the clock recovery circuit. Table 7. Clock Recovery Characteristics Minimum Typical Maximum SCLK Frequency 10MHz 135 MHz Sampling Phase Adjustment 0.5 ns/step, 64 steps Patented digital clock synthesis technology makes the gmZAN1 clock circuits very immune to temperature/voltage drift.
  • Page 50 2.3 Analog-to-Digital Converter 2.3.1 Pin Connection The RGB signals are to be connected to the gmZAN1 chip as described in Table 8 and Table 9. Table 8. Pin Connection for RGB Input with Hsync/Vsync GmZAN1 Pin Name (Pin Number) CRT Signal Name Red+(#95) Red- (#94) N/A (Tie to Analog GND for Red on the board)
  • Page 51 2.3.2 Sync. Signal Support The gmZAN1 chip supports digital separate sync (Hsync/Vsync), digital composite sync, and analog composite sync (also known as sync-on-green). All sync types are supported without external sync separation / extraction circuits. Digital Composite Sync The types of digital composite sync inputs supported are: OR/AND type: No Csync pulses toggling during the vertical sync period XOR type: Csync polarity changes during the vertical sync period The gmZan1 provides enough sync status information for the firmware to detect the digital composite sync type.
  • Page 52 The display start/end registers store the first and the last pixels/lines of the last frame that have RGB data above a programmed threshold. The reference point of the STM block is the same as that of the source timing generator (STG) block: The first pixel: the pixel whose SCLK rising edge sees the transition of the HSYNC polarity from low to high.
  • Page 53 2.5.1 Scaling Filter The gmZAN1 scaling filter uses an advanced adaptive scaling technique proprietary to Genesis Microchip Inc. and provides high quality scaling of real time video and graphics images. This is Genesis’ third generation scaling technology that benefits from the expertise and feedback gained by supporting a wide range of solutions and applications.
  • Page 54 Table 13. gmZAN1 TFT Panel Interface Timing Signal Name Typical Unit Period 16.67 2048 lines Frequency Front porch 2048 lines Back porch 2048 lines Pulse width 2048 lines PdispE Panel height 2048 lines Disp. Start from VS 2048 lines PVS set up tp PHS 2048 PCLK *1 PVS hold from PHS...
  • Page 55 Figure 7. timing Diagrams of the TFT Panel Interface (One pixel per clock) (a) Vertical size in TFT (b) Vsync width and display position in TFT (c) Horizontal size in TFT RGBs PCLK RGB data from data paths (d) Hsync width in TFT Panel Background Color Displayed...
  • Page 56 Figure 8. Data latch timing of the TFT Panel Interface (a) Two pixel per clock mode in TFT PCLK R2,(N:0) R4,(N:0) R0,(N:0) G0,(N:0) G2,(N:0) B2,(N:0) B0,(N:0) R1,(N:0) R3,(N:0) G1,(N:0) G3,(N:0) (b) One pixel per clock mode in TFT B1,(N:0) B3,(N:0) PCLK R(n:0 G(n:0...
  • Page 57 2.6.2.1 State 0 (Power Off) The Pbias signal and Ppower signal are low (inactive). The panel controls and data are forced low. This is the final state in the power down sequence. PM is kept in state 0 until the panel is enabled. 2.6.2.2 State 1 (Power On) Intermediate step 1.
  • Page 58 2.6.3 Panel Interface Drive Strength As mentioned previously, the gmZAN1 has programmable output pads for the TFT panel interface. Three groups of panel interface pads (panel clock, data, and control) are independently controllable and are programmed using API calls. See the API reference manual for details. Table 14.
  • Page 59 2.7.1 Serial Communication Protocol In the serial communication between the microcontroller and the gmZAN1, the mic rocontroller always acts as an initiator while the gmZAN1 is always the target. The following timing diagram describes the protocol of the serial channel of the gmZAN1 chip. Figure 10.
  • Page 60 Table 15 summarizes the serial channel specification of the gmZAN1. Refer to Figure 10 for the timing parameter definition. Table 15. gmZAN1 Serial Channel Specification Parameter Min. Typ. Max. Word Size (Instruction and Data) 12 bits HCLK low to HFS high (t1) 100 ns HFS low to HCLK inactive (t2) 100 ns...
  • Page 61 2.8.1 OSD Color Map Both the internal and external OSD display use a 16 location SRAM block for the color programming. Each color location is a twelve-bit value that defines the upper four bits of each of the 8 bit Red, Blue and Green color components as follows: D3:0 Blue;...
  • Page 62 To improve the appearance and make it easy to find the OSD window on the screen, the user may select optional shadowing (3D effect). The “Shadow” feature operates in the same manner as in the B120; that is, it produces a region of half intensity (scaler data) pixels of the same width and height as the OSD window, but offset to the right and down by 8 pixels/lines (the border width setting has no effect).
  • Page 63 3. ELECTRICAL CHARACTERISTICS Table 20. Absolute Ratings Parameter Min. Typ. Max. Note PVDD 5.6 volts CVDD 5.6 volts Vss-0.5 volt Vcc+0.5V Operating temperature 0 degree C 70 degree C Storage temperature -65 degree C 150 degree C Maximu m power consumption Table 21.
  • Page 64 POWER KEY PAD 4060 CABLE COVER 4061 AUDIO POWER BUTTON 4062 VOLUME KNOB 4063 SCREW COVER 1Y L FRONT PANEL (AOC) Y 1L BACK COVER SUPPORT FRONT (AUDIO) Y 3L SUPPORT BACK BASE ARM COVER LCD HINGE ID LABEL ( LM -700A)
  • Page 65 PARTS LIST OF CABINET ( continue) T780KMGHBAA0A SPECIFICATION 1030 10128 SCREW 1030 12128 SCREW 3X12mm 1030 12128 SCREW 3X12mm 750A 170 3 LCD-PANEL M170E1-01 BY CHI-MEI...
  • Page 66 PARTS LIST OF CONVERSION BOARD LOCATION CBPC780GM SPECIFICATION CN303 33A 3802- WAFER 5P RIGHT ANELE PITCH 2.0 CN302 33A 3802- WAFER 9P RIGHT ANELE PITCH 2.0 CN602 33A 3802- WAFER 10P RIGHT ANELE PIT CH CN601 33A 3802- WAFER 14P RIGHT ANELE PITCH R319 33A 8009- 2 PIN MIN.
  • Page 67 LOCATION AI780GM SPECIFICATION U601 561- NT7181 56L TSSOP U602 561- NT7181 56L TSSOP U200 562- gmZAN1 PQFP-160 GENESIS U304 563- CHIP LM2596S- 5.0 BY NS U305 563- AIC1084-33M TO-263 ANALOG U202 566- CHIP SI9953DY-T1 SILICON U904 585- LT1117 SMD SOT223 BY LINEARITY U904 585- AIC1117-33CY SOT-223 ANALOG...
  • Page 68 LOCATION AI780GM SPECIFICATION C616 65A 0603- 103 - CHIP 0.01UF 50V X7R C201 65A 0603- 104 - CHIP 0.1UF 16V X7R C202 65A 0603- 104 - CHIP 0.1UF 16V X7R C204 65A 0603- 104 - CHIP 0.1UF 16V X7R C205 65A 0603- 104 - CHIP 0.1UF 16V X7R...
  • Page 69 LOCATION AI780GM SPECIFICATION C603 101 3 SMD EC 100UF 16V 85C D C943 101 3 SMD EC 100UF 16V 85C D C313 220 3 SMD EC 22UF 16V 85C CSIZE C314 220 3 SMD EC 22UF 16V 85C CSIZE L200 CHIP BEAD 600 OHM 1206 T13216 L201 CHIP BEAD 600 OHM 1206 T13216...
  • Page 70 PARTS LIST OF KEY PC BOARD LOCATION Quantity SPECIFICATION KEPC780EK TP101 TP102 3252 WAFER 3P 3.96mm 90 LABEL ( KEPC780EK) Q101 PP T Q102 PP T R101 6021 0352 T 10K OHM 5% 1/6W R102 6021 0352 T 10K OHM 5% 1/6W R103 6021 0352 T...
  • Page 71 PARTS LIST OF DC-POWER BOARD LOCATION DCPC780A3 Quantity SPECIFICATION 3278 2P PLUG B2B-XHA/JST B2B-XHA/JS P3-1 3278 3P PLUG B3B-XHA/JST B3B-XHA/JS 331 6 330uF+ 20% 35V 3.5mm P JACK SCJ-0356A-B-X SC DC POWER JACK SCD-014A BY SC 27 A DC POWER CORD 715A LCD USB &...

  • Page 72: Power System And Consumption Current

    POWER SYSTEM AND CONSUMPTION CURRENT ADAPTER MODULE INVERTER MODULE Input AC 110V, 60Hz/240V, 50Hz Input DC 12V Output AC 1500V/30K-80KHz Output DC 12V 5A Current 14mA Main board power system LM2596S-5, 12V to 5V (5A SPEC) To CPU, Eeprom, 24c21, control-inverter-on.off 860mA when Cable not Connected 841mA when Normal operation To Chi-Mei Panel around 1250mA...
  • Page 73 PCB LAYOUT LVDS power ( LT1117) DDC chip Input Connector LVDS Gmzan1 AIC1084 5V to 3.3v Panel- Power Control VR adjust for LM2596 convert 12V to 5V Lamp Keyboard -connector Luminance Inverter-connector...
  • Page 74 OBLU OBLU PCLK PCLK HCLK HCLK /VGA_CON /VGA_CON PDISPE PDISPE LVDS RST1 RST1 .Gmzan1 block AOC (Top Victory) Electronics Co., Ltd. Tatung (UK) Ltd. ZAN1 MICRO CONTROLLER Title TOP LEVEL Size Document Number 763-17.DSN Date: Monday, December 11, 2000 Sheet...
  • Page 75 10uF 0.1 uF +3.3V L203 VDDA 600(1206) C224 C225 C226 C227 C228 C222 C223 AOC (Top Victory) Electronics Co., Ltd. 100uF 0.1 uF 0.1 uF 0.1 uF 0.1 uF 0.1 uF 0.1 uF Title ZAN1 ADC-AGND Size Document Number 715AXXX-1...
  • Page 76 TXIN16 PLLGND PD35 0.01UF 0.1uF 0.1uF 10uF 330uF 330uF TXIN17 PLLGND TXIN23 TXIN24 TXIN25 PDISPE TXIN26 PCLKA TXCLKIN AOC (Top Victory) Electronics Co., Ltd. Tatung (UK) Ltd. Title LVDS Size Document Number Custom 715A820-1 Date: Tuesday, July 10, 2001 Sheet...
  • Page 77 /BKLT-ON R403 HEADER 5 10 K 4.7K(OP) 24LC04B VR501 R401 R402 BKLT-PWM 10 K 0(OP) C401 1K(OP) 100uF(OP) Tatung (UK) Ltd. AOC (Top Victory) Electronics Co., Ltd. Title MICRO CONTROLLER Size Document Number 715A820-1 Date: Tuesday, July 10, 2001 Sheet...
  • Page 78 C312 330 uF/35V 0.1 uF 330 uF/35V Distribute throughout digital 'Gnd' plane TP700 TP701 TP702 TP703 TP704 TP705 TP706 AOC (Top Victory) Electronics Co., Ltd. Tatung (UK) Ltd. Title POWER Size Document Number 715A820-1 Date: Tuesday, July 10, 2001 Sheet...
  • Page 79 12.) ADAPTER SCHEMATIC CH-1205 R130 R132 C116 24 1/4W 24 1/4W R101 1000P/500V CN101 F101 NTCR 3/5A L101 R102 L102 BD101 C104 C105 T101 AC SOCKET 2A/250V 470K 1/4W 18mH KBL405G 120U/400V 103P/500V PQ2620 for CH-1205 R131 R133 24 1/4W 24 1/4W C101 R111...
  • Page 80 13.AUDIO SCHEMATIC DIAGRAM U1 AN7522 C1,C2,C4 --- 1uF/50V C1,C2,C4 --- 1uF/50V 2200uF/25V CON2 10uF/50V 0.047uF 0.047uF EAR PHONE 100uF/16V 130K CON2 AUDIO IN SW SPST 1(3W) 1(3W) DC IN 100uF/25V Title Audio 1.5W X2 Size Document Number <Doc> <RevC Date: Friday, April 27, 2001 Sheet...

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