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DV172 LCD Monitor Service Guide

Engineering Specification

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Appendix: Physical Dimension Front View and Side view

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Содержание DV172

Страница 1: ... LCD Monitor DV172 DV172B B Black Cosmetic Service Guide February 2003 Distributed by Mitsubishi Electric Australia Pty Ltd A B N 58 001 215 792 348 Victoria Road RYDALMERE NSW 2116 Australia Telephone 1300 605 808 ...

Страница 2: ...l or otherwise without the prior written permission of the Company Disclaimer The Company makes no representations or warranties either expressed or implied with respect to the contents hereof and specifically disclaims any warranties merchantability or fitness for any particular purpose Further the Company reserves the right to reserve this publication and to make changes from time to time in the...

Страница 3: ...D Monitor DV172 DV172B B Black Cosmetic s Manual Contents Section 1 Engineering Specifications 2 Circuit Operation Theory 3 Alignment procedure 4 Trouble Shooting 5 Parts Lists DV172 DV172B 6 Schematic Diagrams 7 Assembly ...

Страница 4: ... FUNCTIONAL SPECIFICATION 6 3 1 VIDEO PERFORMANCE 6 3 2 BRIGHTNESS ADJUSTABLE RANGE 6 3 3 ACOUSTICAL NOISE 6 3 4 AUDIO PERFORMANCE 7 4 LCD CHARACTERISTICS 7 4 1 THE PHYSICAL DEFINITION TECHNOLOGY SUMMARY OF LCD PANEL 7 5 USER CONTROLS 8 5 1 USER S HARDWARE CONTROL DEFINITION 8 5 2 OSD CONTROL FUNCTION DEFINITION 8 6 MECHANICAL CHARACTERISTICS 9 6 1 DIMENSION 9 6 2 WEIGHT 9 6 3 PLASTIC 9 6 4 CARTON...

Страница 5: ...mode supported 1280 x 1024 at 75Hz Number of Display Colors supported 262144 with dithering Panel driver is 6 bit Contrast Ratio 250 1 min 500 1 typ Luminance 200 cd m2 min 260 cd m2 typ At R G B saturated condition Default User color setting AC power input Yes 90 264 Volts 47 63 Hz DC power input with AC power adapter No N A DPMS supported Yes 3 watts LED indicator for power status showed Yes Gre...

Страница 6: ...mm Depends on shipping requirement 99 level 2 2 Signal interface Item Condition Spec OK N A Remark Signal Cable 15 pin D Sub Color White or Black Length 1600 20 mm Depends on shipping requirement 99 level 15 pin D sub connector See Note 1 For 15 pin D sub Pin assignment 24 pin DVI connector See Note 2 For 24 pin DVI Video input Signal type 1 Separate analog R G B signals For 15 pin D sub Level R G...

Страница 7: ...s DVI connector C1 C5 are NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 C1 C2 C3 C4 C5 Pin Signal Assignment Pin Signal Assignment 1 TMDS RX2 16 Hot Plug Detect 2 TMDS RX2 17 TMDS RX0 3 TMDS Ground 18 TMDS RX0 4 Floating 19 TMDS Ground 5 Floating 20 Floating 6 DDC Clock 21 Floating 7 DDC Data 22 TMDS Ground 8 Floating 23 TMDS Clock 9 TMDS RX1 24 TMDS Clock 10 TMDS RX1 C1 Floati...

Страница 8: ...DDC2B EDID Version 1 3 Refer to FP767 MEA DV172 C212 S W spec document to see the detailed EDID data definition 2 6 Support Timings Input Timing Actual Output Resolution Horizontal Frequency KHz Vertical Frequency Hz Dot Clock Frequency MHz Actual display Resolution OK N A Remark 640x350 31 47 P 70 08 N 25 17 1280x943 DOS 720x400 31 47 N 70 08 P 28 32 1280x1024 DOS 640x480 31 47 N 60 00 N 25 18 12...

Страница 9: ... sync input timing 3 Operational Functional Specification 3 1 Video performance Item Condition Spec OK N A Remark Resolution Any input resolution modes which are under 1280x1024 1280 x1024 Contrast ratio 250 1 min 500 1 typ Brightness At R G B saturated condition Default User color setting 200 cd m2 min 260 cd m2 typ Response time Rising Falling time 16 ms typ 25ms max Viewing angle At Contrast ra...

Страница 10: ...mm Audio Control 1 Volume range 0 100 levels 2 Mute On Off 4 LCD Characteristics 4 1 The Physical definition Technology summary of LCD panel Item Condition Spec OK N A Remark LCD Supplier AUO Panel type of Supplier M170EN05 Screen Diagonal 432mm 17 0 Display area Unit mm 337 920 H x 270 336 V Physical Size Unit mm 358 5 W x 296 5 H x 19 0 V Weight Unit gram 1900 typ Technology TN with Film Pixel p...

Страница 11: ...A Remark Contrast See Table 3 Brightness Horizontal Position Vertical Position Pixel Clock Phase Color Temperature C1 9300 C2 6500 C3 5800 User Separate R G B adjustment OSD Position OSD Horizontal position OSD Vertical position Language 6 languages OSD Time From 5 sec to 60 sec Volume Hot key for Contrast Hot key for Brightness Hot key for Volume Auto adjustment Auto Geometry Color Information Fo...

Страница 12: ...Spec OK N A Remark Monitor Net 4 7Kg Monitor with packing Gross 6 5Kg 6 3 Plastic Item Condition Spec OK N A Remark Flammability 94HB Heat deflection To ABS 65 UV stability ABS Delta E 8 0 MPR2 TCO Resin MPR2 ABS VW55 VE0856 D350 Texture MT 11030 Color Pearl White 6 4 Carton Item Condition Spec OK N A Remark Color Kraft Material B Flute Compression strength 530 KGF Burst Strength 16 KGF cm2 Stacke...

Страница 13: ...EN60950 IEC950 EN60950 73 23 EEC CB TUV GS EN60950 CCIB China EIAJ JEIDA Japan Item Condition Spec OK N A Remark NOM Mexico JEON Korea EZU PSB EMC CE Mark 89 336 EEC FCC USA Class B EN55022 Class B CISPR 22 Class B VCCI Japan Class B BSMI Taiwan C Tick Australia AS3548 RRL Korean X Ray Requirement DHHS 21 CFR USA X Ray Standard DNHW PTB German X Ray standard MPRII MPRIII Ergonomics ZH1 618 German ...

Страница 14: ...DV172 LCD Monitor Service Guide Engineering Specification 11 Appendix Physical Dimension Front View and Side view 3 8 2 7 3 4 0 0 2 5 0 3 5 7 5 7 8 5 2 0 0 2 7 2 4 ...

Страница 15: ...ell by just pressing one button Auto e VESA DDC2B function supported f Audio function supported with 2 speakers II Block diagram DV172 consists of a head and a stand base The head consists of a LCD module with 4 lamps a power board include AC DC inverter power audio circuit a control board and an interface board The block diagram is shown as below Inverter AC DC board Audio circuit TFT LCD module ...

Страница 16: ...al Red Green and Blue signals and the scaling IC inside MCU and scaling control circuit will start to do timing signal detecting and calculating to output the proper LCD panel signals to LCD panel circuit The timing signal detecting function in the scaling IC is to detect whether input H sync V sync or digital pixel clock signals status have been changed by host PC system then it will do short tim...

Страница 17: ...ng engine capable of expanding any source resolution to a highly uniform and sharp image or down scaling from UXGA combined with the critically proven integrated 8 bit triple ADC and patented Rapid lock digital clock recovery system It also support detect mode and DPMS control MCU control unit it controls all the functions of this interface board just like the OSD display setting the adjustable it...

Страница 18: ... Voltage 90 264V is rectified and filtered by BD601 C605 See Fig 3 and the DC Output voltage is 1 4 AC input See Fig 3 Fig 3 c Switching element and Isolation power transformer When the Q601 turns on energy is stored in the transformer During Q601 turn off period the stored energy is delivered to the secondary of transformer R607 C607 and D601 is a snubber circuit R615 is current sense resistor to...

Страница 19: ...e to suppress high Frequency switching spikes See Fig 5 Fig 5 e PWM Controller The current mode control IC UC3842B is used to control PWM When the VCC terminal of it gets 16V IC601 turns on 5V will be set up at Pin8 through soft start circuit which includes R617 C611 D606 and D605 R616 and C610 generate a fixed frequency saw tooth wave at Pin4 ...

Страница 20: ...s a photo coupler and TL431 is a shunt regulation They are used to detect the output voltage change and be the primary and secondary isolation When output voltage changes the feedback voltage will be compared and duty cycle will be decided to control the correct output voltage See Fig 7 Fig 7 ...

Страница 21: ...1 Power IC Use ST POWER IC TDA7496 The IC are stereo Class AB output amplifiers with DC Volume control The devices are designed for use in TV and monitor but are also suitable for battery Fed portable recorders and radios Use 15V from AC DC Board and connect speaker to offer 1W per channel 2 DC Power Input To supply 15V to be VCC source Voltage for TDA7496 and built in AC DC board 3 Audio Input co...

Страница 22: ...DV172 LCD Monitor Service Guide Circuit Operation Theory 8 ...

Страница 23: ...ge 15V Input Current 2A max ON OFF Voltage 3 3V PWM Duty 3 3V 47KHz Output Requirement Max Output Current 15mA Min Output Current 6mA Lamp Working Voltage 600Vrms Open Lamp Voltage 1800Vrms Frequency 55KHz 15Vin ON OFF switching OSCILATOR CIRCUIT TRANSFORMER CCFL PWM CONTROLLER TL1451 CIRCUIT PROTECTION AND DETECT ON OFF BRT_ADJ ...

Страница 24: ...rcuit Operation Theorem 3 1 ON OFF SWITCH The turn on voltage was controlled by R756 and R757 The inverter was turned on or off by the switching transistors Q761 and Q757 Also regulator IC751 is control by Q761 and Q757 decide supply 15V to inverter part or instead ...

Страница 25: ...R765 decide the working frequency BLT_ADJ signal is from control board control pulse width then decide how much energy delivery to CCFL also decide CCFL brightness Q741 and Q742 be the buffer to rise the drive capability and the totem poles circuit can improve a capable of driving for Q743 C770 decide the striking time delay ...

Страница 26: ...imary coil get lower Finally the transistor turn off and another transistor turn on These statuses are repeated and the pin7 and pin8 of T751 will get a Sin Wave to turn on CCFL C Control board introduction The main parts of the control board are a push button and a led a Push button It s a simple switch function pressing it for ON to do the auto adjustment function releasing it for OFF to do noth...

Страница 27: ...eparation 2 B Timing adjustment Analog only it s no need for DVI D input source 2 C Auto color balance adjustment Analog only it s no need for DVI D input source 2 D Color adjustment Analog only 2 E Writing EDID file Analog and DVI D both 3 F Command definition for Auto Alignment 3 2 Wire Dressing 4 3 Add Glue 7 4 Touch Up 8 ...

Страница 28: ...Analog signals from Chroma video pattern generator 3 Press AUTO key to run AUTO adjustment function 4 Clear user area in EEPROM 5 Check the phase of the image if phase is not perfect adjust it to the best condition 6 Adjust the settings to following values CONTRAST 55 BRIGHTNESS 90 OSD TIME 20 VOLUME 20 COLOR USER 7 Press EXIT key until the SAVE shows on the OSD to save factory parameters and turn...

Страница 29: ...e the EDID file into EEPROM for analog input 5 Read both EEPROM data and confirm if it s matched with the C212 definition 6 Repeat the above step 1 to step 5 with DVI D signal cable connected F Command definition for Auto Alignment 1 PC Host will send 0x7C IIC slave address and then following 4 bytes command I2C Send Command Byte1 Byte2 Byte3 Byte4 Change Color Temperature to C1 CC 1 XX checksum C...

Страница 30: ...0 31 47 N 70 08 P 28 32 DOS 640x480 31 47 N 60 00 N 25 18 DOS 640x480 35 00 N 67 00 N 30 24 Macintosh 640x480 37 86 N 72 80 N 31 5 VESA 640x480 37 50 N 75 00 N 31 5 VESA 800x600 37 88 P 60 32 P 40 00 VESA 800x600 48 08 P 72 19 P 50 00 VESA 800x600 46 86 P 75 00 P 49 50 VESA 832X624 49 72 N 74 55 N 57 29 Macintosh 1024x768 48 36 N 60 00 N 65 00 VESA 1024x768 56 48 N 70 10 N 75 00 VESA 1024x768 60 0...

Страница 31: ...DV172 LCD Monitor Service Guide Alignment procedure 5 b Speaker wire ...

Страница 32: ...DV172 LCD Monitor Service Guide Alignment procedure 6 c LVDS wire d Power grounding ...

Страница 33: ... procedure 7 e Control wire 3 Add Glue The below attached figure shows the location of added glue component a The location of add glue component have L602 L603 C605 C603 C604 C615 C703 C704 and C707 b CN601 C605 Q601 T601 D701 D7021 and IC701 ...

Страница 34: ...DV172 LCD Monitor Service Guide Alignment procedure 8 4 Touch Up Remark The manufacturing site should base on their experience and pass the necessary testing to add or reduce some touchup points ...

Страница 35: ...able plug in connector Plug all wire then turn on power again Is power stable Check J5 connector or power BD Is LED light green Check control BD Check U3 DDC data of digital input Check crystal Y1 CKT or replace it Does crystal work correctly Check 7414 related circuit or replace it Does 7414 U2 work well Cables used in DV172 1 Internal a LVDS wire to panel J6 J7 b Wire to control BD J4 2 External...

Страница 36: ...ouble Shooting 2 2 1 Control Board OSD is not working Yes Is control BD connecting No Plug control BD then retry Yes Is bottom switch normally Yes Replace control BD then retry No Replace Control BD Is OSD working No Check Interface BD ...

Страница 37: ...DV172 LCD Monitor Service Guide Trouble Shooting 3 3 OSD function OSD doesn t work Is control BD working No Replace control BD Check interface BD ...

Страница 38: ... again or checking I F BD Turn on level existed BLT_ON Insert them again Check CN752 CN753 was pluged properly Plug CN701 again or checking I F BD Replace IC751 Q751 Replace new fuse Replace new fuse Check IC701 OK Checking F601 Broke Check IC601 Vcc existed Replace IC602 IC702 D701 or check I F BD Replace IC701 Replace new fuse Replace IC601 Q602 Q603 R602 Y N N N N Y Y Y Y N Y Y N N Y Y Y N N N ...

Страница 39: ...PLCC32 U6 21 55 L5302 021 PCBA SPS BD FR 1 22 04 01451 070 IC PWM CTRL TL1451ACN DIP 16P IC751 23 04 03842 044 IC VR UC3842BN DIP 8P IC601 24 04 07496 010 IC AMP TDA7496 SIP 15P IC501 25 05 00123 010 IC OPTO PC123F1 DIP 4P IC602 26 06 05707 010 XTOR SW 2SC5707 NPN TP 3P Q740 Q760 Q739 Q759 27 06 09024 020 FET MOS IRFU9024 PC TO 251AA Q743 Q751 28 06 2R060 151 DIODE BRI 2KBP06ML 530 600V 2 BD601 29...

Страница 40: ...8 OHM 2W 470 150MM FP75 65 31 L5308 001 SPG G SUS301 0 1T 66 33 L5306 001 BKT PNL SECC0 8T 67 34 L3703 001 SPG SUS301 0 1T 68 34 L5302 002 SHD SPTE0 4T 69 38 04121 001 TAPE 15 0 05MM KAPTON YEL 70 40 L3303 171 LBL SPEC LR DIAMOND 71 42 L5321 001 WIRE HLD ABS 002 I 72 42 L5325 001 WIRE CLIP NYLON66 94V0 E171FP 73 42 L5326 001 MYLAR PET 35X20X0 4T E171FPB 74 47 L5306 001 AL TAPE 35X45 0 08T 75 47 L5...

Страница 41: ...3 94 53 L5304 001 F DISK MEA DV172 ...

Страница 42: ...6300C LO 2 8V SOT23 U9 20 72 39010 V33 IC FLASH SST39VF010 70 PLCC32 U6 21 55 L5302 021 PCBA SPS BD FR 1 22 04 01451 070 IC PWM CTRL TL1451ACN DIP 16P IC751 23 04 03842 044 IC VR UC3842BN DIP 8P IC601 24 04 07496 010 IC AMP TDA7496 SIP 15P IC501 25 05 00123 010 IC OPTO PC123F1 DIP 4P IC602 26 06 05707 010 XTOR SW 2SC5707 NPN TP 3P Q740 Q760 Q739 Q759 27 06 09024 020 FET MOS IRFU9024 PC TO 251AA Q7...

Страница 43: ...W8605 SW8606 62 45 00091 021 LABEL ART 25 4 5 ALL 63 48 L5303 A00 PCB CTRL BD FR 1 64 50 L5301 011 WIRE 9 10P 1007 26 280MM NO C CN8601 65 23 4L530 001 SPK 2 8 OHM 2W 470 150MM FP75 66 31 L5308 001 SPG G SUS301 0 1T 67 33 L5306 001 BKT PNL SECC0 8T AU DVI 68 34 L3703 001 SPG SUS301 0 1T 69 34 L5302 002 SHD SPTE0 4T AUO 70 38 04121 001 TAPE 15 0 05MM KAPTON YEL 71 40 L3303 171 LBL SPEC LR DIAMOND 7...

Страница 44: ...1 47 L5302 002 CSN R EPS 92 49 L5303 001 INSTRUCTION MANUAL DV172 93 50 74405 201 CABLE AUDIO 284C 577C 002 140 94 50 L2308 501 SIGNAL C 15 15P W C BLK 95 50 L2508 501 SIGNAL C DUAL DVI D DVI D 200 96 53 L5304 001 F DISK MEA DV172 ...

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Страница 47: ...N18 19 TXIN19 20 GND 21 TXIN20 22 TXIN21 23 TXIN22 24 TXIN23 25 VCC 26 TXIN24 27 TXIN25 28 TXIN4 56 TXIN3 55 TXIN2 54 GND 53 TXIN1 52 TXIN0 51 TXIN27 50 LVDS GND 49 TXOUT0 48 TXOUT0 47 TXOUT1 46 TXOUT1 45 LVDS VCC 44 LVDS GND 43 TXOUT2 42 TXOUT2 41 TXCLK OUT 40 TXCLK OUT 39 TXOUT3 38 TXOUT3 37 LVDS GND 36 PLL GND 35 PLL VCC 34 PLL GND 33 PWR DWM 32 TXCLK IN 31 TXIN26 30 GND 29 C94 0 1U 16V K C83 4...

Страница 48: ...0U 16V 1 2 U5 IRU1206 25CY IN 1 GND 2 OUT 3 R54 100 U2E 74LVC14A 11 10 14 7 C73 0 1U 50V Z C63 100P 50V J J5 20 72060 207 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C81 0 1U 50V Z L23 R55 1K L20 C70 0 1U K C62 100P 50V J C67 0 1U 16V K C76 0 1U 50V Z R60 1K C61 100P 50V J C72 10U 16V 1 2 R58 1K L19 C68 0 1U 16V K C69 10U 16V 1 2 C66 100P 50V J L24 C71 0 1U K L21 R56 1K J4 2060091109 1 2 3 4 5 6 7 8 9 C74 0 ...

Страница 49: ...ON_FSYNC 117 DHS TCON_LP 116 RXC 195 RXC 194 REXT 174 TCON_OPOL 120 TCON_OINV 121 TCON_ESP 122 TCON_EPOL 123 TCON_EINV 124 TCON_RSP2 125 TCON_RSP3 126 TCON_RCLK 127 TCON_ROE 128 GPIO20 HDATA3 206 GPIO19 HDATA2 207 GPIO18 HDATA1 208 GPIO17 HDATA0 1 GPIO16 HFS 205 GPIO22 HCLK 204 RESETn 5 GPIO21 IRQn 4 DDC_SCL 6 DDC_SDA 7 GPIO9 TCON_ROE2 48 GPIO8 IRQINn 39 CLKOUT 201 ROM_ADDR0 25 ROM_ADDR1 24 ROM_AD...

Страница 50: ...14 7 DN8 BAV99 1 3 2 D5 TZMC5V1 1 2 C10 0 1U 16V K D6 TZMC5V1 1 2 C1 0 1U 16V K C7 0 01U 50V K D3 TZMC5V1 1 2 R12 56 DN6 BAV70LT1 2 3 1 DN1 BAV99 1 3 2 DN11 BAV99 1 3 2 C2 0 01U 50V K R18 4 7K C4 0 01U 50V K J1 D Sub15 1 7 2 8 3 9 4 10 5 11 12 13 14 15 6 16 17 D8 TZMC5V1 1 2 R17 10K C9 47P 50V J R14 100 D2 TZMC5V1 1 2 R5 2 7K R1 75 C11 47P 50V J DN5 BAV99 1 3 2 DN9 BAV99 1 3 2 U2C 74LVC14A 5 6 14 ...

Страница 51: ...and View Monitor Optical Points Screw Holes H4 HOLE V8 1 2 3 4 5 6 7 8 9 OP OP4 OP OP14 OP OP7 H2 HOLE V8 1 2 3 4 5 6 7 8 9 H1 HOLE V8 1 2 3 4 5 6 7 8 9 OP OP2 OP OP10 OP OP12 OP OP13 OP OP1 OP OP5 OP OP3 OP OP8 OP OP9 H3 HOLE V8 1 2 3 4 5 6 7 8 9 OP OP11 OP OP6 ...

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