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Product Service Manual--Level 1

Service Manual for BenQ:
M2700HD

Applicable for All Regions

Version: 001

Date:2009/11/27

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 (November, 2009)
© Copyright BenQ Corporation 2009. All Right Reserved.

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Содержание M2700HD

Страница 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 November 2009 Copyright BenQ Corporation 2009 All Right Reserved ...

Страница 2: ...haracteristics 8 3 7 User Controls 9 3 8 Mechanical Characteristics 9 3 9 Pallet Shipment 錯誤尚未定義書籤 4 Level 1 Cosmetic Appearance Alignment Service 錯誤尚未定義書籤 4 1 Software Firmware Upgrade Process 錯誤尚未定義書籤 4 2 Alignment Procedure for function adjustment 錯誤尚未定義書籤 5 Level 2 Disassembly Assembly Circuit Board Standard Parts Replacement 錯誤尚未定義書籤 5 1 Exploded Diagram 錯誤尚未定義書籤 5 2 Assembly Block 錯誤尚...

Страница 3: ...here is high voltage parts inside that may cause electric shock to human bodies z Stop using the monitor if the cabinet is damaged Have it checked by a service technician z Put your monitor only in a lean cool dry environment If it gets wet unplug the power cable immediately and consult your closed dealer z Always unplug the monitor before cleaning it Clean the cabinet with a clean dry cloth Apply...

Страница 4: ...ar not component be damaged 3 2 Signal Interface Input Connector Analog D sub 15 Digital DVI D HDMI 2 S Video Component Compsite PC Audio RCA Audio USB 4Port Default Input Connector Defaults to the first detected input Video Cable Strain Relief Equal to twice the weight of the monitor for five minutes Video Cable Connector DB 15 Pin out Compliant DDC 2B CI Video Signals 1 Video RGB Analog Separate...

Страница 5: ...40x480 31 50 37 86 72 81 N N P 640x480 31 50 37 50 75 00 N N FS 640x480 36 00 43 27 85 01 N N NP 640x500 25 25 31 00 57 76 N N P 720x400 28 32 31 47 70 08 N P FS 720x400 35 5 37 93 85 04 N P P 832x624 57 27 49 71 74 53 N N NP 800x480 29 5 29 74 59 476 N P NP 800x600 36 00 35 16 56 25 P P P 800x600 40 00 37 88 60 32 P P NP 800x600 50 00 48 08 72 19 P P P 800x600 49 50 46 88 75 00 P P FS 800x600 56 ...

Страница 6: ... 122 5 71 55 84 88 N P P 1280x960 108 00 60 00 60 00 P P FS 1280x960 148 50 85 94 85 00 P P P 1280x1024 108 00 63 98 60 02 P P NP 1280x1024 126 99 74 88 69 85 P P NP 1280x1024 124 90 74 40 70 00 N N NP 1280x1024 134 60 77 90 72 00 P P P 1280x1024 135 00 79 98 75 02 P P NP 1280x1024 135 09 81 18 76 16 N N FS 1280x1024 157 50 91 15 85 02 P P P 1360x768 85 50 47 71 60 01 P P P 1366x768 85 50 47 71 59...

Страница 7: ... 95 P N FS 1920X1200 193 25 74 56 59 89 N P O 1920X1200 245 25 94 04 74 93 N P FS 1920X1440 R 184 75 88 822 59 9 P N O 1920X1440 233 500 89 532 59 968 N P O 1920X1440 298 112 50 74 9 N P FS 2048x1152 R 156 75 70 992 59 9 P N FS 2048x1152 197 71 584 59 9 N P O 2048x1536 R 209 25 94 7 59 9 P N O 2048x1536 267 25 95 4 59 9 N P O 2560x1600 R 268 5 98 713 59 972 P N O 2560x1600 348 5 99 4 59 9 N P 3 5 ...

Страница 8: ...ish Czech Hungarian Serbo croatian Romanian Netherlands Russian Swedish Protuguese Japanese Chinese S Chinese 3 5 2 Brightness Adjustable Range The test to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted Temperature 25 5 C Test pattern white Video Resolution 1920x1080 60HZ Video input level 700 mV 2 Warm up time 30 minutes War...

Страница 9: ...0 Hours Excludin g Panel CCFL Life time Luminance becomes 50 AUO M270HW01 V0 50 000 Hours TYP Note1 Note1 More details of CCFL life time please refer to Panel SPEC 3 6 LCD Characteristics 3 6 1 The physical definition technology summary of LCD panel Supplier AUO Model name AUO M270HW01 V0 Display Area 597 6 H x336 15 V Pixel Pitch 311 25 H x311 25 V Display Colors 16 7M 6 Bit Hi FRC Number of Pixe...

Страница 10: ... Menu C Press for 3 sec will display the mute message for 3 sec when audio at mute status press the for 3 sec again will release Audio Mute D Press to show Volume Hot Key Menu this Menu elapsed time depend on the Display Time of OSD POWER Power on or power off the monitor Auto press Auto to perform auto adjustment 3 8 Mechanical Characteristics 3 8 1Dimension Item condition Spec OK NA Remark Bezel...

Страница 11: ...cification Stowing Type Containter Quantity of Produces sets Every container Quantity of Produces sets Every Pallet Quantity of Pallet sets Every container With Pallet 20 SEA 132 Pallet A 12 Pallet B Pallet A 11 Pallet B 40 SEA 300 Pallet A 12 Pallet B Pallet A 25 Pallet B 40H SEA Pallet A Pallet B Pallet A Pallet B 20 AIR 88 Pallet A 8 Pallet B Pallet A 11 Pallet B 40 AIR 200 Pallet A 8 Pallet B ...

Страница 12: ...utton to enter ISP page finally press Run Icon to start ISP 3 Waiting for PASS then please plug out power cable and re start monitor again 4 2 Alignment procedure for function adjustment 4 2 1 Preparation 1 Setup input timing VESA to 1920 1080 60Hz 32 Grays pattern 2 Setup units and keep it warm up for at least 30 minutes 4 2 2 Timing adjustment 1 Enter to factory mode setting area by pressing ENT...

Страница 13: ...at mute status press the for 3 sec again will release Audio Mute D Press to show Volume Hot Key Menu this Menu elapsed time depend on the Display Time of OSD POWER Power on or power off the monitor Auto press Auto to perform auto adjustment 4 2 3 2 OSD Control The On Screen Display OSD shall be an easy to use icon based menu through keypad OSD buttons or remote control unit The unit shall leave th...

Страница 14: ... modes 2 If Senseye Demo set ON and it should turn to Off by pressing Auto Game Sharpness can t adjust Photo Sharpness can t adjust sRGB Sharpness can t adjust Eco Sharpness can t adjust Senseye Demo ON OFF OFF Dynamic Contrast 1 0 1show opt menu 2 1 0 not show opt menu 3 0 DCR close 1 5 DCR open mean 10000 50000 1 4 DCR only can adjust on Movie Game Photo Mode Default 0 Enabled only for Photo Mov...

Страница 15: ...t Auto Detect PC Audio HDMI Audio1 HDMI Audio2 Component Audio Composite S Vide o Audio When adjust OSD it should pass some item if certain Audio didn t exist Auto Detect EmbracingSound ON OFF 1 When connect earphone Line out and speaker didn t sound Audio Mode Audio Advanced EmbracingSound can t adjust in OSD 2 When disconnect earphone and EmbracingSound OFF Audio Advanced can t adjust ON SYSTEM ...

Страница 16: ...omatically calibrate chip ADC parameter by using chip internal DAC GAIN ADC gain value OFFSET ADC offset value C1 Blue Set color temperature 9300K C2 Red Set color temperature 5800K C3 Normal Set color temperature 6500K C5 User Set user preferred color temperature Lang type 17 Reset BL Hr the time of backlight Reset Total Hr the total time when connect power Return Escape from Factory menu 4 2 3 4...

Страница 17: ...al Generator VGA cable detector When VGA cable is not plugged the monitor will work in power saving mode Visual check Chroma Signal Generator Panel Flicker check 1 Mode 1920 1080 60Hz 2 Set Brightness contrast to default value 3 Do AutoAdjustment 4 Shut down PC to check whether there s glitter on the center of the picture Chroma signal generator PC Power saving 1 Mode 1920 1080 60Hz 2 Pattern full...

Страница 18: ...BenQ M2700HD Service Manual 17 5 Level 2 Disassembly Assembly Circuit Board Standard Parts Replacement 5 1 Exploded Diagram ...

Страница 19: ...OIL AL DOUBLE COND 140x40x0 07mm LE17B4 2 FOIL AL MYLAR 100 30 0 09MM 2 KEYPAD CABLE 1 IR CABLE 1 TAPE ACE L40xW20 7 ASSY BACK COVER 1 SCREW B T 4 10 4 Front cover 1 Middle Bezel 1 IR LENS 1 LOGO 1 Speaker box 1 Speaker Cover 1 Sponge 1 BACK COVER LOGO BACK 1 FUNCTION BUTTON 1 Shielding 1 SCREW C T3 8 1 MYLAR 1 BASE 1 BASE PLATE 1 RUBBER 5 PCBA KEYPAD 1 KEYPAD CABLE 1 PCBA USB 1 LP2785 LCD Monitor...

Страница 20: ...BenQ M2700HD Service Manual 19 1 Assemble the panel with front bezel 2 Assemble chassis Plug in the LVDS 3 Assemble the IR BD 4 Plug in the lamp lines ...

Страница 21: ...BenQ M2700HD Service Manual 20 5 Stick the foil 6 Plug in the speaker line 7 Assemble the keypad keypad cable 8 Assemble USB Cable USB BD ...

Страница 22: ...BenQ M2700HD Service Manual 21 9 Connect the USB cable KP Cable with IF BD 10 Assemble the back cover with screw 11 Assemble the stand 12 screw the stand with 4pcs screws ...

Страница 23: ...BenQ M2700HD Service Manual 22 13 Assemble the hinge cover ...

Страница 24: ...OND 140x40x0 07mm LE17B4 2 FOIL AL MYLAR 100 30 0 09MM 2 KEYPAD CABLE 1 IR CABLE 1 TAPE ACE L40xW20 7 ASSY CHASSIS 1 Front cover 1 Middle Bezel 1 IR LENS 1 LOGO 1 Speaker box 1 Speaker Cover 1 Sponge 1 PCBA I F BOARD 1 BOLT 4 40x11 8 Ni 4 PCBA Power 1 M3 6 11 CHASSIS 1 EMI Gasket L10 W10 H5 1 GASKET L15 W15 H15 1 PCBA IR BD 1 SCREW P T T3 1 Speaker Bar 1 SCREW C T3 8 2 PCBA KEY PAD 1 BASE 1 BASE P...

Страница 25: ...BenQ M2700HD Service Manual 24 2 Remove 4pcs screws 3 Remove the stand 4 Disassemble the screw in the corners of back cover 5 Disassemble the three edge of front bezel and Remove the back cover ...

Страница 26: ...BenQ M2700HD Service Manual 25 6 Disconnect the USB cable KP Cable with IF BD 7 Disassemble USB Cable USB BD 8 Remove the keypad keypad cable 9 Pull out the speaker Cable ...

Страница 27: ...BenQ M2700HD Service Manual 26 10 Remove the foil 11 Pull out the lamp lines 12 Disassemble the IR BD 13 Disassemble chassis Plug in the LVDS ...

Страница 28: ...BenQ M2700HD Service Manual 27 14 Remove the panel ...

Страница 29: ...28 5 Circuit Board and Standard Parts Replacement 5 1 Block diagram Power Board ...

Страница 30: ...29 ...

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Страница 32: ...31 ...

Страница 33: ...32 IF Board ...

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Страница 43: ...42 Keypad ...

Страница 44: ...43 IF board layout Keypad board layout PI board layout ...

Страница 45: ... inputting main circuit to prevent man from shock D808 rectify AC in put to DC voltage L801 L806 L803 C801 c802 C803 C804 c813 c814 formed a low frequency filter net for EMI and EMC High Voltage to Low Voltage Control Circuit C807 is used to smooth the wave from rectifier IC806 is a highly integrated PWM controller When rectified DC high voltage is applied to the HV pin during start up the MOSFET ...

Страница 46: ... current is reversed The parts including C819 C820 C821 C842 C843 C827 and c817 are used to smooth the current waves For DC Audio 17V D805 is used to rectify the inducted current R812 and C813 are used to store energy when current is reversed The parts including C823 C824 L803 are used to smooth the current waves For DC 30V D804 D806 D807 is used to rectify the inducted current R817 and C828 are u...

Страница 47: ...ia R123 flow to CN108 1 on IR board LED Red ON c When in Suspend mode U103 14 11 sends out a high potential via R129 R123 flows to CN108 1 2 on IR board LED Amber ON 5 6 1 3 Mstar CHIP U111 scaler U111 MST6378UCL 183 192 and 197 206 output 8 bit LVDS digital data to panel control circuit through CN107 U111 MST6378UCL 230 outputs Brightness PWM signals to control CCFL brightness U111 MST6378UCL 173...

Страница 48: ...t can t be Yes Is there high level voltage on pin6 of IC501 No No Yes Check I F board R505 open No Connecting the output connector Yes Are connected rightly CN501 CN502 CN503 Yes No U501 U502 fail IC501 fail No Is Ok IC501 Is there instantaneously pulse wave on pin1 pin16 of IC501 at the moment of restart Yes No Yes Check feedback circuit ISEN1 ISEN2 VSEN OLP1 OLP2 END T501 T502 fail Is ok T501 T5...

Страница 49: ...ck IC802 C807 T801 Check circuit if Check F801 P801 RT 801 D808 Check pin6 of IC806 voltage about 16V CheckC823 D813 C84 1 Check pin2 of IC802 voltage about 3V Check primary OVP OLP and secondary Check pin1 of IC806 voltage is below 1 4V Check R845 R846 R849 R852 R853 END ...

Страница 50: ...27 R829 R830 repair R827 R829 R830 R833 Check the R pin voltage of IC804 Check R826 R828 Check D813 C823 if short Change D813 C823 Check pin2 of IC806 Check pin5 of IC806 voltage below 1 4V Check R845 R846 R849 R852 R853 END Check the C pin voltage of IC804 if 3V Change IC803 ...

Страница 51: ...101 Check Crystal of U111 Check CCFL Enable of U111 Scaler Fail Check X102 Inverter Fail OK NG OK OK NG Check Reset Of U111 Check pin14 of CN101 Check R116 R117 R118 R121 Q105 Check R251 R252 C248 OK NG NG NG OK OK Check power supply supply of U111 NG OK Check U101 U102 IC101 ...

Страница 52: ...rt Change LVDS Cable Check VLCD Is 5V Check Panel Enable Of U111 Check R107 R109 R110 Q101 Q104 END Workmanship LVDS Cable NG Panel Fail Check LVDS Signals Check the HW Reset Of U111 Check the pins Of U111 U111 Fail NG NG NG NG NG NG OK OK OK OK OK ...

Страница 53: ...n LVDS Cable Reinsert Change LVDS Cable Check the communication of U111 and external circuit Check the Pins of The U111 END Workmanship LVDS Cable NG Check Scaler_SCLK Reset NG NG NG OK OK OK Check Crystal Of U111 Check X102 ...

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