BenQ VP2212 Service Manual
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BenQ VP2212 Service Manual

BenQ VP2212 Service Manual

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Applicable Country & Regions:
Middle East
Product Service Manual – Level 2
Service Manual for BenQ:
Monitor-TV/VP2212
<9H.Y0W75.JCG>
Version: 00a
Date:2010/02/22
Notice:
For RO to input specific "Legal Requirement" in specific NS regarding to responsibility and liability
statements.
Please check BenQ's eSupport web site, http://esupport.benq.com, to ensure that you have the most
recent version of this manual.
First Edition (February 2010)
© Copyright BenQ Corporation 2007. All Right Reserved.
1

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Summary of Contents for BenQ VP2212

  • Page 1 Notice: For RO to input specific “Legal Requirement” in specific NS regarding to responsibility and liability statements. Please check BenQ’s eSupport web site, http://esupport.benq.com, to ensure that you have the most recent version of this manual. First Edition (February 2010)

  • Page 2: Table Of Contents

    Content Index ABBREVIATIONS & ACRONYMS....................3 ABOUT THIS MANUAL ........................4 INTRODUCTION..........................4 GENERAL DESCRIPTIONS ......................5 RELATED SERVICE INFORMATION ..................5 PRODUCT OVERVIEW ........................6 SPECIFICATION ......................6 PACKING........................25 CUSTOMER ACCEPTANCE..................29 LEVEL 1 COSMETIC / APPEARANCE / ALIGNMENT SERVICE ........32 VISUAL INSPECTION &...

  • Page 3: Abbreviations & Acronyms

    Abbreviations & Acronyms A/D Converter Analog to Digital Converter BenQ BenQ Corporation Digital Television Electromagnetic Interference HDMI High Definition Multimedia Interface NTSC National Television System Committee On Screen Display Phase Alternating Line RS232 Interface Between Data Terminal Equipment and Data Communications Equipment Employing...

  • Page 4: About This Manual

    About This Manual This manual contains information about maintenance and service of BenQ products. Use this manual to perform diagnostics tests, troubleshoot problems, and align the BenQ product. Important Only trained service personnel who are familiar with this BenQ Product shall perform service or maintenance to it.

  • Page 5: General Descriptions

    This Service Manual contains general information. There are 2 levels of service: Level 1: Cosmetic / Appearance / Alignment Service Level 2: Circuit Board or Standard Parts Replacement Related Service Information Service Web Site BenQ Global Service Website: http://www.benq.com/support/ eSupport Website: http://esupport.benq.com/v2...

  • Page 6: Product Overview

    Product Overview This specification describes a display device that is based on a 22 inch TFT LCD display TV/Monitor. The part number of the panel is CMO M220Z1-L03. The native resolution of the panel is 1680X1050. At this resolution the monitor device can be described as WSXGA and the television can be best described as “HDTV”...
  • Page 7 (6). Power: -110 Vac ~ 240 Vac universal power (7). User interface: - User controls: on/off switch, key pad with input select, menu, channel up, channel down, left( - ), right ( + ) - IR remote controller - Fancy OSD (on screen display) for user control interface - Color indicator for power on/standby (8).
  • Page 8 Assembly Specification: ITEMS Specification Gap LCD Panel/bezel ≤1.3mm (3) Input / Output Signal Specification Power Input (AC Input) HDMI Input(support DVD or PC) Signal Input D-SUB (15 pin) Signal Input YPbPr Signal Input S-Video Input AV Video Input RF Antenna Audio Input for VGA and HDMI (support PC) Audio Input for YPbPr Audio Input for AV or S-Video (left/ right)
  • Page 9 1. PC Analog Signal Signal cable : D-Sub: 15pin D-sub connector is on the captive signal cable for IBM VGA or compatible graphic adapters. The shall be 1.8 meters long.The pin assignment of this connector is described as below: D-Sub Connector Green Blue Red GND...
  • Page 10 Signal Timing: Timing Vertical Horizontal Pixel Note Mode Frequency Frequency Frequency (Hz) (kHz) (MHz) 720x400 31.5 28.32 HDMI & DVI 640x480 31.5 25.17 HDMI & DVI 640x480 37.5 31.50 VESA HDMI & DVI 800x600 37.9 40.00 VESA HDMI & DVI 800x600 46.9 49.50...
  • Page 11 Signal Level: (1) YPbPr input: Component signal: 0.7~1Vp-p/75 Ohm, negative (2) Audio: Level: 500 mVrms Impedance: 600 ohms Signal support timing: Input from YcbCr: Lines per frame Horizontal frequency(kHz) Vertical frequency(Hz) System 15.734 NTSC 15.625 PAL(B,G ,D,K,I) 15.625 SECAM 15.734 4.43NTSC Input from YpbPr: Horizontal frequency (kHz)
  • Page 12 5. HDMI Connector Pin Definition: HDMI: 19 pins HDMI connector is designed to match with HDMI digital signal cable, the pin assignment is as the following: Pin 19 Pin 1 Pin 18 Pin 2 * 19 pins HDMI female Pin Signal Assignment Pin Signal Assignment TMDS Data2+ 11 TMDS Ground...
  • Page 13 6. Power Supply Requirements Input Power Requirements: (1) Input Voltage Range: Input AC Voltage range is from 100-240Vac, +/- 10% shall be available. (2) Input Current: Maximum Input current is 2.5A at 90Vac (3) Frequency Range The unit shall operate within a frequency range of 47Hz to 63Hz. (4) Inrush Current: 80A, Power supply inrush current shall be less than the ratings of its critical components including fuse, rectifiers and surge limiting device etc.
  • Page 14 Item Parameter Specification Display pixels 1680*R.G.B.*1050 Display cells Pixel pitch 0.282mm Cell pitch Display pixel type Active Area Horizontal 473.76mm x Vertical 296.1mm Brightness (cd/m2) Center Average White variation Contrast ratio 1000 Color 0.617 0.647 0.677 Chromaticity 0.304 0.334 0.364 Green 0.254 0.284...
  • Page 15 (4) LCD Module Inspection:...
  • Page 19 3. Classification Table of defects: 4. Backlight Characteristics: Item UNIT Note Lamp Input voltage 1034 VRMS Lamp current mARMS Operating frequency Lamp Starting Voltage 1900 VRMS 0°C 1500 VRMS 25°C Operating life 50,000 5. Inverter Interface Characteristics: Item UNIT Note Power consumption 26.32 Input Voltage...
  • Page 20 (5) Audio Spec Parameter Specification Base band Input Power Output Max Rating 5W at 10% T.H.D Distortion Speaker Impedance main spk :8 Ω 500 mV rms (Typ) 1.8 V rms (Max) Line In Impedance: 600 ohms Flatness of Amplitude Response +/- 3 db (at 1KHz @1W) Total Harmonic Distortion <2%...
  • Page 21 (7) OSD Control flow Menu Function Adjust Value Picture Mode Dynamic/Game/Standard/Personal/ Cinema Contrast 0~100 Picture Brightness 0~100 ( HDMI Saturation 0~100 TV AV SVIDEO Tint 0~100 YPBPR Sharpness 0~100 mode) Color TEMP. Warm/Normal/Cool Aspect Ratio Full/ Zoom/ Panorama/4:3/14:9 Auto Adjust Contrast 0~100 Brightness...
  • Page 22 Remote Controller The remote control is a standard accessory packed with the LCDTV set. The communication between remote control and receiver on LCDTV set is commonly by the emitting and receiving of infrared signals. Remote control button function is as following: POWER Soft Power - ON/OFF DTV function.
  • Page 23 supported on this model) VOL + and Adjust volume UP/DOWN VOL – Return to the previous page of OSD menu(The function is BACK not supported on this model) ▲/ ▼/ ◄/ ► / ▲/ ▼/ ◄/ ►: Navigate and adjust OSD function OK: Enter a function setting or confirm an instruction INPUT Turn on the selection menu of input source...
  • Page 24 (9) Maintainability Specifications 1 General & Requirements (1) Main Board ASSY (2) Keypad Board ASSY (3) IR Board ASSY (4) Power Board ASSY 2 Mean Time to Repair 2.1 Module Level: Less than 20 minutes 2.2 Component Level: Less than 20 minutes 3 Equipment &...

  • Page 25: Packing

    Packing...
  • Page 26 Marking & Labels...

  • Page 29: Customer Acceptance

    1.0 SCOPE This document establishes the general workmanship standards and functional Acceptance criteria for LCD TV model V42L Produced by BenQ Inc. 2.0 PURPOSE The purpose of this publication is to define a procedure for inspection of the LCD TV by means of a customer acceptance test, the method of evaluation of defects and rules for specifying acceptance levels.
  • Page 30 Note: If BenQ defect undefined failure, and it judged that is reduce the merchandise ability, BenQ CM Inform this defect. After that parties make communication and decide how to solve. 6.0 CLASSIFICATION OF DEFECTIVES A defective is a product, which contains one or more defects. The defective will be classified into...
  • Page 31 10.0 TEST CONDITIONS Unless otherwise prescribed, the test conditions are as follows: 11.0 TEST EQUIPMENTS 11.1 BenQ PCs with BenQ display adapter or other specific display adapter, which is agreed upon by both parties 11.2 Test program by BENQ 11.3 Power saving test tool 11.4 Minolta color analyzer...

  • Page 32: Level 1 Cosmetic / Appearance / Alignment Service

    Level 1 Cosmetic / Appearance / Alignment Service Visual Inspection & Cleaning 1.0 Inspection distance for different zone: and timing to inspect Zone A: Front view of the bezel. Zone B: a) Top view and right view of the bezel. b) Front view of base stand. Zone C: Other areas can be defined as zone C.
  • Page 33 1.1 Appearance Inspection Criteria Spot 規格 (Spec) A 級面 (A surface ) B 級面 (A surface ) C 級面 (A surface ) 面積 cm2 允許數 (Number of defect) 允許數 (Number of defect) 允許數 (Number of defect) ( Area cm2 ) 22”...
  • Page 34 寬 / 長 >100*100 cm ≦10*10 cm ≦50*50 cm ≦70*70 cm ≦100*100 cm 區域 兩 不 良 點 間 允 Zone Width / Length >10000 cm 許最小距離 ≦100 cm ≦2500 cm ≦4900 cm ≦10000 cm Minimum distance Of two points 0.1/3 50mm ≦...
  • Page 35 OPERATIONAL INSPECTION CRITERIA 1. 0 TEST PATTERN PATTERN TEST ITEM FULL WHITE 1. chroma23291 input5 dot picture, adjust the Brightness &contrast to MAX, Test 5dots Brightness 2. chroma23291 input Full white picture, measure the brightness at the center of the picture FULL R, G, B, Window pattern Chroma23291input R/G/B/Window video,...
  • Page 36 1. 1. Test content Test Condition TEST ITEM Input Equipment EDID ‘s software Check EDID Adjust volume from min to max, PC sound check PC& adjust Balance D-SUB PC Mode Chroma23291 Follow Engineering spec ‘s 1.check if video is or Chroma2329 Audio timing normal...
  • Page 37 1.2. Specification: Item Pattern Condition Specification H -Resolution Mono Contrast: Default ≧280 scope Brightness: Default V -Resolution Mono Contrast: Default ≧350 scope Brightness: Default H -Size Mono Contrast: Default 90%≦H-size<100% scope Brightness: Default V -Size Mono Contrast: Default 90%≦H-size<100% scope Brightness: Default Light output Full white...
  • Page 38 1.3. OPERATIONAL INSPECTION CRITERIA: Description Class Display H/V size over specification Major Display H/V –Resolution over specification Major Video noise Major Operating frequency out of spec, out of range Major OSD wrong words, OSD function fail Major Color temperature out of spec(Refer to Engineering Spec) Major No power, no video, LED does not illuminate Major...
  • Page 39 INSPECTION CRITERIA 1.0 Panel electrical inspection specification: Inspection Item Specification 1 Line defect Can’t be seen. 2 Random dot defect Bright dot 3 dots ≦ 2 dots adjacent </=1 3. Dark dot Random </=5 dots 2 dots adjacent </=2 3 dots adjacent </=0 Minimum Distance Between Dark dots L >/=5mm 4.

  • Page 40: Software/Firmware Upgrade Process

    Software/Firmware Upgrade Process How to enter Factory OSD 1. Please press keypad to enter Factory Mode. 2. Press “Enter” key + “Up” key together and then press “Power” key to enter Factory Mode 3. Confirm software version...
  • Page 41 Software download procedure The ISP SOP FOR MST 1.Connection PC to the Tv set by the tool as the follow picture (Fig.1~4) Action: The D_SUB cable must be 15 pin, and the TV set must be AC ON Fig.1 Fig.2...
  • Page 42 Fig.3 Fig.4...
  • Page 43 1: Installation Driver Fig.1 Press the “next” button to continue. Fig.2...
  • Page 44 Fig.3 Now press the “确定“button. Fig.4 Press the “close”,the driver installation ok.
  • Page 45 2. Start the Isp 1. Open the “ISP_Tool_410_T.exe” Press the “config”, if the the ISP board have been found, you will see the picture as bellow. Fig.5 3 Press the “Connect”, if all the things are ok and ready, it will show the device type as the bellow picture.
  • Page 46 4. Press “read” and choose the right F/W . Fig.7 5. Press “Auto”, than press “Run”. It will start ISP . When the ISP is ok ,you will see the information as the bellow picture. Fig.8 6. Pull away the AC power Cord and the D-SUB Cable. And start another TV set. 7.

  • Page 47: Adjustment / Alignment Procedure

    Adjustment / Alignment Procedure 1. Preparation: 1.Approximately 30 minutes should be allowed for warm up before proceeding. 2.Adjustments should be undertaken only on those necessary elements since most of them have been carefully preset at the factory. 3.ESD protection is needed before adjustment. 2.
  • Page 48 4. YPbPr MODE Color Temperature adjusting : A. Timing : 1680X1050@60Hz. B. Pattern : COLOR BAR. C. Set CA210 color analizer at the center of screen and along a perpendicular to the screen near the display. In the factory mode select the “SOURCE” item, then select :YPbPr E.
  • Page 49 8. YPbPr, S-VIDEO, AV, TV, FUNCTION TEST A. Input YPbPr, S-VIDEO, AV , TV, signal and check. B. Input PAL D/K air channel (TABLE 1) for TV channel. C. Under YPbPr MODE, Make sure the 480i, 480P, 720P, 1080i is right. 9.AUDIO FUNCTION TEST A.

  • Page 50: Level 2 Circuit Board And Standard Rarts Replacement

    Level 2 Circuit Board and Standard Parts Replacement Exploded View...
  • Page 51 EXPLODED VIEW PARTS LIST Ref. No. Source DESCRIPTION SPECIFICATION Q‘TY REMARK 1F01 FRONT BEZEL JC229B ABS 94HB G.L BLACK 1F02 LED INDIC.-PWR JC229B PC VT-0520T COLOR T57015 1F03 FUNCTION KEY JC229A ABS 94HB BLACK C 1F04 METAL FITTG JX229 SECC 0.6T CMO 22" PANEL(SWSPEAKER) 1F05 SCREW SPE M3*4 CANERA SCREW NI TYPE I...

  • Page 52: Disassembly / Assembly

    Disassembly / Assembly 1. Disassembly of Rear Cover. Rear Cover 2. Disassembly of Stand from LCD TV. 2.1 Unscrew 4 screws to move Stand Unit and Bracket fix.
  • Page 53 Stand Bracket fix Disassembly of Main Board, Power Board, Front Cover and Panel Unit. 3.1. Unscrew screws 7 to move Shield Plate . Shield Plate...
  • Page 54 3.2. Unscrew 4 screws and disconnect the wires to remove Main Board. Main Board 3.3. Unscrew 6screws and disconnect the wires to remove Power Board. Power Board...
  • Page 55 3.4. Unscrew 8 screws to remove Front Cover and Panel Bracket. Front Cover Panel Bracket...

  • Page 56: System Block Diagram

    System Block Diagram The LCD TV uses 1680x1050 LCD Panel to display image. This LCD TV can accept the following input sources: (1) HDMI connector (2) D-SUB connector (3) PC audio (4) Component S-Video (6) Composite (7) Audio In*2 (L/R) (8) TV Tuner As shown in the system block diagram, there are 5 boards in the system.

  • Page 57: Trouble Shooting

    Trouble shooting...
  • Page 58 NO display Power key Check Check Check Work ok KeypadP701 I110 X101 Check Check Check Check INVERTER P106 Q103,L102 PANEL Check Check Check Check PC SOUCE D-sub cable I104 I110,SUROUND Check Check Check Check AV SOUCE AV cable P105 L118,R193,C202 Check Check Check...

  • Page 59: Appendix 1- Screw List/Torque

    Appendix 1 – Screw List /Torque TORQUE ITEM DESCRIPTION SPECIFICATION Q‘TY WHERE USE Q‘TY (KG-CM) 4 Kgf/cm BRACKET FIX TO METAL FITTG SCREW M3*5MM 4 Kgf/cm SHIELDING TO METAL FITTG SCREW M3X8 P=0.5 5 Kgf/cm HINGE TO NECK SCREW M3*6 P=0.5 BLACK 4 Kgf/cm BACK COVER TO METAL FITTG SCREW...

  • Page 60: Appendix 2 -Ir Code

    Appendix 2 –IR Code Code format: 3010, System Code: 00...

  • Page 61: Appendix 3- Wall Mount

    Appendix 3 – Wall Mount Dimension Scale: 1:1 Unit: mm...
  • Page 62 Notice: For RO to input specific “Legal Requirement” in specific NS regarding to responsibility and liability statements. Please check BenQ’s eSupport web site, http://esupport.benq.com, to ensure that you have the most recent version of this manual. First Edition (February 2010)
  • Page 63 Content Index Level 3 - Component Repair to Curcuit Boards ................3 Theory of Circuit Operation........................3 Circuit Schematic..........................5 PCB Artwork............................16...

  • Page 64: Level 3 - Component Repair To Curcuit Boards

    Level 3 - Component Repair to Curcuit Boards Theory of Circuit Operation Video: The MST97885ALD is a high performance and fully integrated IC for multi-function LCD monitor/TV with resolutions up to UXGA(1600x1200) / WSXGA+(1680x1050). It is configured with an integrated triple-ADC/PLL, an integrated DVI/HDCP/HDMI receiver Note, a multi-standard TV video and audio decoder, a video de-interlacer, a scaling engine, the MStarACE-3 color engine, an on-screen display controller, an 8-bit MCU and a built-in output panel interface.
  • Page 65 PINNING SYMBOL DESCRIPTION N.C. (AGC Monitor) Do Not Connect* N.C. (Tuning Voltage Monitor) Do Not Connect* Supply Voltage Vb,Tuner section C-Serial Clock C -Serial Data AS_TU C -Address Select_Tuner part Do Not Connect Do Not Connect Do Not Connect AS_IF C -Address Select_IF part IF sound Second IF sound output...

  • Page 66: Circuit Schematic

    Circuit Schematics DC-DC...
  • Page 67 VGA INPUT...
  • Page 68 HDMI Interface...
  • Page 69 TUNER...
  • Page 70 VIDEO...
  • Page 71 YPbPr...
  • Page 72 PANEL Interface...
  • Page 73 AUDIO AMP...
  • Page 74 AUDIO Interface...
  • Page 75 SCALER...
  • Page 76 SDRAM...

  • Page 77: Pcb Artwork

    PCB Artwork MAIN PCB TOP VIEW...
  • Page 78 MAIN PCB BOTTOM VIEW...
  • Page 79 KEYPAD PCB TOP VIEW KEYPAD PCB BOTTOM VIEW...
  • Page 80 POWER PCB TOP VIEW...
  • Page 81 POWER PCB BOTTOM VIEW...

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