ViewSonic VX2413wm-2 Service Manual
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ViewSonic VX2413wm-2 Service Manual

ViewSonic VX2413wm-2 Service Manual

23.6” color tft lcd display
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Service Manual

ViewSonic VX2413wm-2
Model No. VS12302
23.6" Color TFT LCD Display
(VX2413wm-2_SM Rev. 1a Apr. 2009)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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Summary of Contents for ViewSonic VX2413wm-2

  • Page 1: Service Manual

    Service Manual ViewSonic VX2413wm-2 Model No. VS12302 23.6” Color TFT LCD Display (VX2413wm-2_SM Rev. 1a Apr. 2009) ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583...

  • Page 2: Revision History

    Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1. Precautions and Safety Notices ..................4 2. Specification ........................7 3. Front Panel Function Control Description ............... 8 4. Circuit Description ......................13 5. Adjusting Procedure ......................21 6. Trouble Shooting Flow Chart .................... 29 7. Block Diagrams ........................ 30 8.

  • Page 4: Precautions And Safety Notices

    1. Precautions and Safety Notices 1.1 Safety Precautions This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However, improper use or installation may cause damage to the monitor as well as the user. Carefully go over the following WARNINGS before installing and keep this guide handy.
  • Page 5 1.4 Handing and Placing Methods (Take VX2265wm for example) Correct Methods: Incorrect Methods: Only touch the metal frame of the LCD panel or the Surface of the LCD panel is pressed by fingers and that front cover of the monitor. Do not touch the surface of may cause “Mura.”...
  • Page 6 Place the monitor on the lap, the panel surface must The panel is placed facedown on the lap. That may be upwards. cause “Mura.”...

  • Page 7: Specification

    2. Specification...

  • Page 8: Front Panel Function Control Description

    3. Front Panel Function Control Description Use the buttons on the front control panel to display and adjust the OSD controls which display on the screen. The OSD controls are explained at the top of the next page and are defined in “Main Menu Controls”.
  • Page 9 Do the following to adjust the display setting: 1. To display the Main Menu, press button [1]. NOTE: All OSD menus and adjustment screens disappear automatically after about 15 seconds. This is adjustable through the OSD timeout setting in the setup menu. 2.

  • Page 10: Main Menu Controls

    Main Menu Controls Adjust the menu items shown below by using the up ▲ and down ▼ buttons. Control Explanation Auto Image Adjust automatically sizes, centers, and fine tunes the video signal to eliminate waviness and distortion. Press the [2] button to obtain a sharper image. NOTE: Auto Image Adjust works with most common video cards.
  • Page 11 Information displays the timing mode (video signal input) coming from the graphics card in the computer, the LCD model number, the serial number, and the ViewSonic® website URL. See your graphics card’s user guide for instructions on changing the resolution and refresh rate (vertical frequency).
  • Page 12 Language Select allows the user to choose the language used in the menus and control screens. Resolution Notice advises the optimal resolution to use. OSD Position allows the user to move the OSD menus and control screens. OSD Timeout sets the length of time the OSD screen is displayed. For example, with a “15 second”...

  • Page 13: Circuit Description

    4. Circuit Description 4.1 Main Board NT68667UFG/C（U401） The NT68167 is a highly integrated flat panel display controller that interfaces analog, digital, and video inputs. It combines a triple ADC, a high quality zoom and shrink engine, a multi-color on screen display (OSD) controller and many other functions in a single chip.
  • Page 14 Pin Assignment...
  • Page 16 AP1117D33L (U701) and AP1117E18LA (U704): DC power convert, convert to 3.3V and 1.8V AP1117 is a low dropout positive adjustable or fixed-mode regulator with 1A output current capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications such as high-speed bus termination and low current 3.3V logic supply.

  • Page 17: Power Board

    4.2 Power Board IC901 LD7576 The LD7576X series bring high performance, combines with highly integrated functions, protections and EMI-improve solution. It’s an ideal solution for those cost-sensitive system, reducing component count and overall system cost. The LD7576X series features near-lossless high voltage startup circuit, green-mode power-saving operation, leading-edge blanking of the current sensing and internal slope compensation.
  • Page 18 Block Diagram Name Function This pin is to program the frequency of the low frequency timer. By connecting a capacitor to ground to set the OLP delay time. And this pin can be used for latch mode protection. By pulling this pin lower than 0.8 V, the controller will be entered latch mode until the AC power-on recycling.
  • Page 19 IC801 TA9687GN 9687 is a high performance, cost-effective CCFL (Cold Cathode Fluorescent Lamp) controller designed for driving large-size Liquid Crystal Display (LCD) applications requiring 2 to 6 CCFLs. The controller converts unregulated DC voltages into a nearly sinusoidal lamp voltage and current waveforms. 9687 supports full-bridge power conversion topologies while maintaining high-efficiency operation.
  • Page 20 Pin Description Pin No. I/O1 Names Description VSEN Voltage Sense Feedback SSTCMP Capacitor for Soft-Start and Loop Compensation Timing Resistor and Capacitor for Operation and Striking Frequency Timing Resistor for Striking Frequency GNDA Signal Ground PDR2 High Side Driver Output 2 GNDP Power Ground NDR2...

  • Page 21: Adjusting Procedure

    5. Adjustment Procedure Setting the Timing Mode Setting the timing mode is important for maximizing the quality of the screen image and minimizing eye strain. The timing mode consists of the resolution (example 1920 x 1080) and refresh rate (or vertical frequency; example 60 Hz).
  • Page 22 Gain adjustment: Move cursor to “Factory” and press “2” key. Move cursor to “ Auto Level” and press “2” key to adjust Gain and Offset automatically; (notice：this monitor do auto level must in T144(1280X1024@60Hz) P48(32 Grays)) a. Adjust sRGB (9300K) color-temperature 1.
  • Page 23 5.2 Firmware Upgrade Procedure 5.2.1 Equipment needed: VX2413wm-2 PC (Personal computer) LPT cable Firmware upgrade program ISP Board LPT Cable VGA Cable...
  • Page 24 Hardware Connect status 5.2.2 Update the NOVATEK’S firmware You should jump the pin to “For Flash” at ISP Board Connect to the PC LPT Connect to the VSC VX2413wm-2 Double click “Writer.exe”...
  • Page 25 This tool can auto detect the right SCALAR programe speed,the process as follow: When auto detect is finished,click “Load Hex”,then chosse the firmware that you want to update...

  • Page 26: Ddc Key In Procedure

    1. Every time after replacing the main board, you have to do the DDC key in. 2. If you find the DDC does not conform to the LCD TV, you have to do the DDC key in. 5.3.1 Equipment Needed VX2413wm-2 PC (Personal computer) LPT cable...
  • Page 27 5.3.3 Connect the DDC board as follow: Connect to the PC LPT Connect this port to the VSC VX2413wm-2’s VGA 12V Input For analog a. Double-click ，appear as follow Figs：...
  • Page 28 b. Click c. Key in the Serial Number printed on the barcode label, then click “OK” R9V090100001 12 codes, for example. d. Unit appears the following Fig, writer completed.

  • Page 29: Troubleshooting Flow Chart

    6. Troubleshooting Flow Chart...

  • Page 30: Block Diagram

    7. Block Diagram 7.1 Main Board LCD Interface (CN405) FLASH MEMORY Crystal Scalar IC NT68167 12MHz PM25LV020-100SCE (Include MCU, ADC, OSD) (X401) (U402) (U401) DVI_SCL DVI_SDA Key Control interface (CN402) EEPROM M24C02 (U101) H sync D-DATA V sync D-CLK D-Sub Connector (CN101)
  • Page 31 7.2 Power Board AC input Bridge Rectifier Transformer Rectifier diodes EMI filter and Filter Start Circuit: R904, R905 CN902 Feedback PWM Control Circuit IC LD7576 ON/OFF Output Transformer MOSFET Circuit ON/OFF Lamp Control Feedback PWM Control Circuit Over Voltage...

  • Page 32: Schematic Diagrams

    Mute# VCC1.8 Mute# Mute# ESD_5V VCC1.8 VCC1.8 5VCC VCC1.8 5VCC POWER SCALER Viewsonic VX2413wm T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size CBPC9NGVWQ1 G3225-1-2-X-3-090330 TPV MODEL 絬 隔 瓜 絪 腹 Key Component 1.0 Block Diagram...
  • Page 33 V_Sy nc I/O2 I/O3 U101 C116 0.22uF C115 AZC199-04S DDC_SCL DDC_SDA DDC_WP M24C02-RMN6TP Viewsonic VX2413wm T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size CBPC9NGVWQ1 G3225-1-2-X-3-090330 TPV MODEL 絬 隔 瓜 絪 腹 Key Component 2.INPUT...
  • Page 34 Q408 LED_ORANGE R469 100R 1/10W 5% CN407 CN408 FB410 NC/BEAD FB409 VCC3.3 TOUCH_PANEL Viewsonic VX2413wm T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size CBPC9NGVWQ1 G3225-1-2-X-3-090330 TPV MODEL 絬 隔 瓜 絪 腹 Key Component 3.SCALER...
  • Page 35 Q404 PANEL_EN LMBT3904LT1G R415 4K7 1/16W 5% C441 C421 R420 1uF/16V 0.1UF 16V 10K 1/16W 5% Viewsonic VX2413wm T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size CBPC9NGVWQ1 G3225-1-2-X-3-090330 TPV MODEL 絬 隔 瓜 絪 腹...
  • Page 36 R713 Q406 R711 22K 1/16W 5% BL_ON 5 C709 C_PANEL_INDEX 0.1UF 16V Panel_ID# 5 LMBT3904LT1G R714 Viewsonic VX2413wm T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size CBPC9NGVWQ1 G3225-1-2-X-3-090330 TPV MODEL 絬 隔 瓜 絪 腹...
  • Page 37 8.2 Power Board BD901A KBP208G L904 100 OHM 1/4W R918 +16V 100 OHM 1/4W R919 Coil C912 BD901 0.001uF GBU408 100 OHM 1/4W R920 ZD902 C918 TZX18B D906 C917 FB902 80OHM FMX-12SL 680uF25V 680uF25V Q903 T901 KTD1028 R943 POWER X'FMR 470R 1/8W 5% C905 R904...
  • Page 38 R817 4R7 1/8W +16V Q805 ZD802 ON/OFF RLZ5.6B ZD803 C819 RLZ5.6B 56pF3KV R816 4R7 1/8W CN801 R803 R804 PT801 AO4620 5K1 1/8W 5% 5K1 1/8W 5% POWER X'FMR C820 C815 56pF3KV 0.1uF R819 CN802 Q806 C802 4R7 1/8W CONN 0.047uF R802 22R 1/8W 5% L801...
  • Page 39 8.3 Key Board KEY 1 R001 2K OHM 1% 1/10W KEY 2 R002 3K 1/10W 1% DOWN R003 3K 1/10W 1% R004 2K OHM 1% 1/10W SW02 KEY2 DOWN KEY1 CABLE KEY 1 KEY 2 KEY2 DOWN KEY1 CN003 T P V ( Top Victory Electronics Co .
  • Page 40 CN001 KEY 1 KEY 2 POWER POWER BLUE Y ELLOW Y ELLOW BLUE CONN LED001 C002 C001 SW01 0.1uF 50V 0.1uF 50V POWER CN002 KEY 1 KEY 2 CONN T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size VX2423W power key...

  • Page 41: Pcb Layout Diagrams

    9. PCB Layout Diagrams 9.1 Main Board...
  • Page 43 9.2 Power Board...
  • Page 45 9.3 Key Board...

  • Page 46: Exploded Diagram And Spare Parts List

    10. Exploded Diagram and Spare Parts List 10.1 EPL...

  • Page 47: Exploded Parts List

    Exploded Parts List Item Description Part Number Q'ty BEZEL CONTOL BUTTON KEY BOAD LENS POWER BUTTON KEY BOARD(POWER) COVER POWER PANEL SCREW 0G1G1030 6120 POWER BOARD MAINFRAME AC-SHIELD REAR COVER HINGE SCREW AM1G1740 10120 BASE RUBBER PAD STAND SCREW 0M1G2940 10225 CR3 SCREW 0M1G 130 5120 MAIN BOARD...
  • Page 48 Item Description Q’ty D-SUB CABLE DVI CABLE POWER CORD AUDIO CABLE BASE EPS(TOP) LCD MONITOR CD MANUAL EPS(BOTTOM) CARTON...
  • Page 49 10.2 Spare Parts List TD9MNGNCYAVWAC Location Part Number Description Remark 019G6014 1 TIE FOR STRAP 023G3178709 3A LOGO 023G3178709 4A VSC17-LCD FRONT LOGO 040G 581 26704 SHIPPING LABEL 041G 68508 A CONTROL CARD 050G 600 1 W WHITE STRAP 050G 600 2 HANDLE1 050G 600 3 HANDLE2...
  • Page 50 A15G0489501 MAINFRAME A33G0665 1 1L LENS A33G0666 AS 1L POWER BUTTON A33G0667 KR 1L COVER POWER A33G0668 AS 1L CONTOL BUTTON A34G0936 KR 1B0100 REAR COVER 23.6" A34G1292AFQA1B 30 BEZEL 23.6" A85G0133101 SHIELD-AC 040G 45762412B CBPC LABEL CN404 033G3802 9B Y CONNECTOR 9P 2.0 CN402 033G8019 6C...
  • Page 51 R115 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R114 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R113 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R111 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R110 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R108 061G0402101 RST CHIPR 100 OHM +-5% 1/16W...
  • Page 52 R465 061G0402432 RST CHIP 4K3 1/16W 5% R466 061G0402471 RST CHIPR 470 OHM +-5% 1/16W R415 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R436 061G0402563 RST CHIP 56K 1/16W 5% R116 061G0402750 RST CHIPR 75 OHM +-5% 1/16W R112 061G0402750 RST CHIPR 75 OHM +-5% 1/16W R107 061G0402750...
  • Page 53 C109 065G0402473 12 CHIP 0.047UF 16V X7R C110 065G0402473 12 CHIP 0.047UF 16V X7R C113 065G0402473 12 CHIP 0.047UF 16V X7R C444 065G0603104 12 CER2 0603 X7R 16V 100N P C421 065G0603105 12 CHIP 1UF 16VX7R 0603 C451 065G0603106 05 CAP CHIP 0603 10UF K 6.3V X5R C443 065G080547515T...
  • Page 54 C002 065G0603104 32 CHIP 0.1UF 50V X7R LED001 081G 14 12 GP 715G3301 1 POWER KEY PCB CN001 033G8019 6K H JS FPC CONN 1.0MM 6P CN002 033G8019 4K H JS FPC CONN 1.0MM 4P KEPC9QA2 KEY BOARD SW02 077G 500 4D XL DOME SWITCH 4PCS CN003 089G 76J 4 1...
  • Page 55 EC 105℃ CAP 1000UF M 25V C939 067G215S1024KV C915 067G215S4713KV EC 105℃ CAP 470UF M 16V C604 067G215V101 4N KY25VB100M-CC3(6.3*11) 100UF M 25V C613 067G215V101 4N KY25VB100M-CC3(6.3*11) 100UF M 25V CAP 105℃ 120UF M 450V C905 067G315Z12115K L802 073G 174 35 HA IND FILTER 200MH+-25% DADON L801 073G 174 35 HA...
  • Page 56 Q806 057G 763 91 ET AO4620 7.2A/30V -5.3A/-30V SOIC-8 Q805 057G 763 91 ET AO4620 7.2A/30V -5.3A/-30V SOIC-8 R612 061G0603100 RST CHIPR 10 OHM +-5% 1/10W R926 061G0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R927 061G0603100 2F RST CHIPR 10K OHM +-1% 1/10W R810 061G0603100 3F RST CHIPR 100 KOHM +-1% 1/10W...
  • Page 57 R925 061G0805102 RST CHIPR 1K OHM +-5% 1/8W R939 061G0805102 RST CHIPR 1K OHM +-5% 1/8W R938 061G0805103 RST CHIPR 10K OHM +-5% 1/8W R802 061G0805220 RST CHIPR 22 OHM +-5% 1/8W R943 061G0805471 RST CHIPR 470 OHM +-5% 1/8W R819 061G0805479 RST CHIP 4R7 1/8W 5%...
  • Page 58 C606 065G0603474 12 MLCC 0603 0.47UF K 16V X7R C603 065G0603474 12 MLCC 0603 0.47UF K 16V X7R C602 065G0603474 12 MLCC 0603 0.47UF K 16V X7R C601 065G0603474 12 MLCC 0603 0.47UF K 16V X7R C928 065G0805103 32 CAP CHIP 0805 10NF K 50V X7R C931 065G0805104 32 CAP CHIP 0805 0.1UF K 50V X7R...
  • Page 59 RATING LABEL Q40G 581709 1B CARTON LABEL Q40G 58170931A HT POT LABEL Q40G0001624 4A PALLET LABEL Q40G000270927A EPA LABEL Q40G000270950A POP STICKER FOR VX2413WM-2 Q44G6000 207A EMPTY CARTON Q44G6002CP1A24 PAPER CAP Q44G9000 7A PAPER BOARD Q44G9005210 CONNER PAPER Q44GD004709 3A...
  • Page 60 Q45G2007M0102A PE BAG FOR MANUAL Q70G2401709 2B VX2413WM CD MANUAL 040G 58162435A P/N LABEL FOR MANUAL PE BAG Q40G0001709 2A SN LANEL...

  • Page 61: Recommended Spare Parts List

    11. Recommended Spare Parts List...
  • Page 62 Reader’s basic dada: Name: Title: Company: Add: Tel: Fax: E-mail: After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile 1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes (marc.maupin@viewsonic.com)

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Vs12302

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