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AOC M2752PQU, Service Manual

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AOC M2752PQU Service Manual Download Page 19

27" LCD Color Monitor                       

                                                                        AOC M2752PQU 

 

19

 

Summary of Contents for M2752PQU

Page 1: ...nstruction 6 3 1 General Instructions 6 3 2 Hotkeys 6 3 3 OSD Menu 7 4 Input Output Specification 21 4 1 Input Signal Connector 20 4 2 Power Supply Requirements 22 4 3 Factory Preset Display Modes 22...

Page 2: ...27 LCD Color Monitor AOC M2752PQU 2 Revision List Version Release Date Revision History TPV Model Name A00 Oct 25 2012 Initial release HFCAT16BEEK2DN...

Page 3: ...characteristics may create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from AOC AOC assumes no liability express or...

Page 4: ...27 LCD Color Monitor AOC M2752PQU 4 1 Monitor Specifications...

Page 5: ...tness control logic and DDC The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage AC IN 100V 240V Monitor Block Diagram Power boa...

Page 6: ...to select the Eco mode of brightness and DCR on when there is no OSD Eco mode hot key may not be available in all models Volume When there is no OSD Press Volume button to active volume adjustment ba...

Page 7: ...adjust any other function repeat steps 2 3 4 OSD Lock Function To lock the OSD press and hold the MENU button while the monitor is off and then press power button to turn the monitor on To un lock the...

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Page 19: ...27 LCD Color Monitor AOC M2752PQU 19...

Page 20: ...H sync 14 V sync 15 DDC Serial clock DVI connectors Pin No Signal Name Pin No Signal Name Pin No Signal Name 1 TMDS Data 2 9 TMDS Data 1 17 TMDS Data 0 2 TMDS Data 2 10 TMDS Data 1 18 TMDS Data 0 3 T...

Page 21: ...15 DDC CLK 6 TMDS Data1 16 DDC DATA 7 TMDS Data0 17 GND 8 TMDS Data0 Shield 18 5V Power 9 TMDS Data0 19 Hot Plug Detect 10 TMDS Clock DP connectors Pin No Signal Name Pin No Signal Name 1 ML Lane 3 n...

Page 22: ...C Line frequency range 50 3Hz 60 3Hz Peak surge current no damage at 240 VAC and cold starting Leakage current 3 5mA Power line surge No advance effects no loss of information or defect with a maximum...

Page 23: ...e 27 inch FHD Color a Si TFT LCD Module M270HW02 The display supports the FHD 1920 H x 1080 V screen format and 16 7M colors RGB 8 bits The light source of this TFT LCD module is W LED All input signa...

Page 24: ...27 LCD Color Monitor AOC M2752PQU 24 4 4 3 Optical Characteristics The optical characteristics are measured under stable conditions at 25 4 4 4 Electrical Characteristics...

Page 25: ...5 1 Main Board CRYSTAL 14 31818MHZ X401 FLASH ROM MX25L2026DM1I 12G U403 Scalar IC RTD2486HRD GR Include ADC OSD MCU U401 Panel Interface CN402 Key Control Interface CN403 D Sub Connector CN101 DVI Co...

Page 26: ...tart Resistor R905 R908 R909 PWM Control IC901 Transformer AC input 5V ON OFF Feedback Circuit MOSFET Q801 Lamp 16V Bridge Rectifier and Filter Feedback Circuit Rectifier diodes Output Circuit PWM Con...

Page 27: ...2 2K R124 100R C117 22P 50V R105 75R C105 NC 5PF 50V C113 47N16V R109 10R FB101 30 OHM 1 2 C119 NC 22P 50V CN101 D SUB 15P 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 17 16 C103 47N16V U103 M24C02 RMN6TP E0...

Page 28: ...3 B 14 D3 B 15 GND 16 D0 C 17 D0 C 18 D1 C 19 D1 C 20 VDD 21 D2 C 22 D2 C 23 D3 C 24 D3 C 25 GND 26 GND 27 DDC_DataA 28 DDC_CLKA 29 GND 30 DDC_DataB 31 DDC_CLKB 32 VDD50 33 DDC_DataC 34 DDC_CLKC 35 GN...

Page 29: ...28 R157 NC 10K R161 4 7K1 16W R162 22K R158 NC 2K 1 16W FB104 300OHM 1 2 D102 BAV70 3 1 2 U108 M24C02 RMN6TP E0 1 E1 2 E2 3 VSS 4 SDA 5 SCL 6 WC 7 VCC 8 R154 47R C139 100N 16V C137 100N 16V C135 100N...

Page 30: ...9 10R R167 4 7K1 16W D103 BAT54C R166 4 7K1 16W ZD103 RLZ5 6B 1 2 R164 47R R163 1K C144 100N 16V R170 1K U110 M24C02 RMN6TP E0 1 E1 2 E2 3 VSS 4 SDA 5 SCL 6 WC 7 VCC 8 C141 220N16V U113 AZ1045 04SU R7...

Page 31: ...FIG1 13 CONFIG2 14 AUX_CH p 15 GND 16 AUX_CH n 17 Hot Plug Detect 18 Return 19 SHELL3 23 DP_PWR 20 R178 1K R181 0 05R R180 0 05R R184 NC R183 1K R175 1MOHM 1 16W 5 LANE1P_S LANE0N_S C145 100N 16V R177...

Page 32: ...BB1P T3P DGND CGND RSRA3M T4M RSRB0M RSRA3P T4P RSRB0P RSRA2M T5M GSGB0M RSRA2P T5P RSGB0P RSRA1M T6M RSGB0M RSRA1P T6P RSBB0P RSGA3M TCLK2M RSGA3P TCLK2P RSGA2M T7M RSGA2P T7P PA1 PWM3 PA2 PWM4 PA0 P...

Page 33: ...AUX_CH p 15 GND 16 AUX_CH n 17 Hot Plug Detect 18 Return 19 SHELL3 23 DP_PWR 20 FB106 120 OHM 1 2 R181 0 05R R178 1K R184 NC R180 0 05R LANE0N_S LANE1P_S R175 1MOHM 1 16W 5 R183 1K LANE0P_S LANE1N_S...

Page 34: ...5 AGRN7 GPIO ABLU5 TXOC _8b TXO3 _10b BG2P 76 AGRN6 GPIO ABLU4 TXOC _8b TXO3 _10b BG2N 77 AUDIO_SOUTR V8_2 MCK GPIO 46 PVCC 84 PGND 85 ARED7 AGRN3 TXE3 _8b TXO0 _10b BR1P 86 LINE_INR V8_5 IICSDA GPIO...

Page 35: ...t 1 C 8 11 Thursday June 14 2012 715G5068 M01 000 0040 08 Power R707 NC 4 7K1 16W C713 100N 16V Q701 NC MMBT3904 C708 100N 16V R706 NC 1K R704 100R FB702 120 OHM 1 2 C711 100uF16V C707 100uF16V C712 1...

Page 36: ...23 24 25 26 27 28 29 30 R468 10K C427 220N16V R470 300 OHM C428 100uF16V U404 AO4411 S 1 S 2 S 3 G 4 D 8 D 7 D 6 D 5 R469 300 OHM R471 100K V5A 2 4 5 7 8 V5A VLCD VLCD R486 NC 100R U405 NC AO3401 RXE...

Page 37: ...14 2012 715G5068 M01 000 0040 10 Key board CN403 CONN 1 2 3 4 5 6 7 C432 680pF 50V R474 3 9K 1 R476 3 9K 1 ZD405 NC MLVS0402M04 1 2 C431 680pF 50V C435 100N 16V R475 3 9K 1 ZD402 NC MLVS0402M04 1 2 C...

Page 38: ...01 APA2606NAI TRG LOUTP 1 PGND 2 PGND 3 LOUTN 4 PVDD 5 MUTE 6 VDD 7 LINN 8 UVP 9 VDC 10 VOLUME 11 HP_LOUT 12 HP_ROUT 13 BYPASS 14 SE BTL 15 AGC 16 RINN 17 GND 18 SD 19 PVDD 20 ROUTN 21 PGND 22 PGND 23...

Page 39: ...220 OHM R902 47 OHM 1 4W C926 0 1uF 50V C923 0 1UF K 50V X7R R916 910K 1 4W C909 470UF 35V R914 47 OHM 1 4W L903 3 5uH C921 680PF 250V C911 470uF 16V R903 200K 1 4W C922 1N 50V R913 47 OHM 1 4W 16V C9...

Page 40: ...SEN2 14 GND 15 ISEN3 16 ISEN4 1 ISET 2 OVP 3 RT 4 ENA 5 ISW 6 LDR 7 VREF 8 VIN 9 STATUS 10 SSTCMP 11 PWM 12 R830 NC R810 10K 1 8W 1 R812 0 2oHM 1 1 4W R813 0 2oHM 1 1 4W C815 1N 50V C805 2 2U16V C804...

Page 41: ...003 NC MLVS0603M04 1 2 UP ZD001 NC MLVS0603M04 1 2 0 CONNECTOR MENU Power AUTO 2 0K LBADC1 0V 1 118V MENU LED OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME T P V Top Victory Electronics Co Ltd K...

Page 42: ...0V R762 100K 1 16W R777 15KOHM 1 16W C778 100N 16V C768 100N 16V R753 100K 1 16W R769 10K 1 16W 5 C763 100N 16V C777 100uF 16V C770 33P 50V R778 15KOHM 1 16W C767 100N 16V R758 NC 10K 1 10W 5 C761 1N...

Page 43: ...N004 NC PHONEJACK 1 2 3 5 4 EAR_Det Headset_L Headset_R GND OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME T P V Top Victory Electronics Co Ltd Key Component 1 A 3 3 Monday June 18 2012 715G4597T...

Page 44: ...27 LCD Color Monitor AOC M2752PQU 44 7 PCB Layout 7 1 Main Board 715G5068M01000004I...

Page 45: ...27 LCD Color Monitor AOC M2752PQU 45...

Page 46: ...27 LCD Color Monitor AOC M2752PQU 46 7 2 Power Board 715G5074P02001002M...

Page 47: ...27 LCD Color Monitor AOC M2752PQU 47...

Page 48: ...27 LCD Color Monitor AOC M2752PQU 48 7 3 Key Board 715G4851K02000001S...

Page 49: ...27 LCD Color Monitor AOC M2752PQU 49 7 4 USB Board 715G4597T01000004S...

Page 50: ...M2752PQU 50 8 Maintainability 8 1 Equipments and Tools Requirement 1 Voltmeter 2 Oscilloscope 3 Pattern Generator 4 DDC Tool with an IBM Compatible Computer 5 Alignment Tool 6 LCD Color Analyzer 7 Ser...

Page 51: ...r cable is tightened Check Power On Off is On Re plug the power cable Replace main board and check connections Check the LED indicate is OK Check the AC power Replace the power board and check connect...

Page 52: ...wer LED White Press the power button is OK Check the LVDS FFC cable or panel The end NG OK OK NG Replace the main board Replace the power board and connection Replace the LVDS FFC cable or panel NG Th...

Page 53: ...r Reset in factory mode Set to the optimal frequency select the recommended frequency Pull out signal cable and check Self Test Feature Check is ok Check the signal cable and the PC Readjust the phase...

Page 54: ...Miss color Color shift Replace the signal cable Pull out the signal cable and check the screen color display is normal The end Replace the signal cable or PC Reset the factory mode In the user mode s...

Page 55: ...p parameter is x 283 30 y 297 30 Y 300cd m2 typ D MEM CHANNEL 10 sRGB color sRGB color temp parameter is x 313 30 y 329 30 Y 300cd m2 3 Enter into Factory mode of AOC iF23 Press the Right button pull...

Page 56: ...R 100 5 Adjust the GREEN on factory window until chroma 7120 indicator reached the value G 100 6 Adjust the BLUE on factory window until chroma 7120 indicator reached the value B 100 7 Repeat above p...

Page 57: ...27 LCD Color Monitor AOC M2752PQU 57 10 Monitor Exploded View...

Page 58: ...1 GP SCREW FOR PB MAINFRAME 12 MAIN PCB FR4 DS 160X110X1 6MM S2 0D1G1030 8120 SCREW FOR MB MAINFRAME 13 POWER BOARD S3 0D1G1030 6120 SCREW FOR BKT USB REAR 14 LCD M270HW02 V100 XM AUO S4 0Q1G 930 812...

Page 59: ...LE 30PIN 190MM 1 0MM E08901 089G404A18N CX AC POWER CORD 1800 FOR EUROPE C13 2nd source E08901 089G404A18N JR AC POWER CORD 1800MM ECN903 095G8014 4R629 HARNESS 4P A2008H 3P A2008H 450MM 2nd source EC...

Page 60: ...PE ECN903 S95G80144629 HARNESS 4P A2008H 3P A2008H 450MM E08904 089G 17356G554 AUDIO CABLE 1800MM E08904 089G 17356X554 AUDIO CABLE 1800MM 2nd source Q41G78D1743 5A CARD TCO5 2 Q45G2010M0201A P E BAG...

Page 61: ...B EC 220UF 20 16V 6 3 11 2000 HR 216MA C602 067G 3052213CB EC 220UF 20 16V 6 3 11 2000 HR 216MA C603 067G 3052213PB CAP 105 C 220UF JH CD263 C602 067G 3052213PB CAP 105 C 220UF JH CD263 C612 067G 3152...

Page 62: ...C02 RMN6TP 2KB SO 8 U110 056G1133 34 1 EEPROM M24C02 RMN6TP 2KB SO 8 U108 056G1133 34 1 EEPROM M24C02 RMN6TP 2KB SO 8 U110 056G1133158 EEPROM CAT24C02WI GT3A 2KB SOIC 8 U103 056G1133158 EEPROM CAT24C0...

Page 63: ...I RST 0402 0 05R MAX 1 16W R177 061G0402000 JI RST 0402 0 05R MAX 1 16W R180 061G0402000 JI RST 0402 0 05R MAX 1 16W R127 061G0402000 JI RST 0402 0 05R MAX 1 16W R463 061G0402000 JI RST 0402 0 05R MAX...

Page 64: ...TEST ONLY RST 0402 10R 5 1 16W TA I R135 061G0402100 JI TEST ONLY RST 0402 10R 5 1 16W TA I R448 061G0402100 JI TEST ONLY RST 0402 10R 5 1 16W TA I R142 061G0402100 JI TEST ONLY RST 0402 10R 5 1 16W...

Page 65: ...R449 061G0402101 JF RST CHIPR 100 OHM 5 1 16W FENGHUA R455 061G0402101 JI BEST ONLY RST 0402 100R 5 1 16W TA I R488 061G0402101 JI BEST ONLY RST 0402 100R 5 1 16W TA I R173 061G0402101 JI BEST ONLY R...

Page 66: ...FENGHUA R624 061G0402103 JF RST CHIPR 10KOHM 5 1 16W FENGHUA R150 061G0402103 JF RST CHIPR 10KOHM 5 1 16W FENGHUA R422 061G0402103 JF RST CHIPR 10KOHM 5 1 16W FENGHUA R468 061G0402103 JI TEST ONLY RST...

Page 67: ...GHUA R428 061G0402220 JF RST CHIPR 22 OHM 5 1 16W FENGHUA R425 061G0402220 JF RST CHIPR 22 OHM 5 1 16W FENGHUA R427 061G0402220 JF RST CHIPR 22 OHM 5 1 16W FENGHUA R423 061G0402220 JY RST CHIPR 22 OHM...

Page 68: ...CHIPR 47 OHM 5 1 16W FENGHUA R155 061G0402470 JF RST CHIPR 47 OHM 5 1 16W FENGHUA R103 061G0402470 JF RST CHIPR 47 OHM 5 1 16W FENGHUA R102 061G0402470 JF RST CHIPR 47 OHM 5 1 16W FENGHUA R130 061G040...

Page 69: ...061G04026201FI TEST ONLY RST CHIP 6 2K 1 16W 1 TA I R120 061G0402750 JF RST CHIPR 75 OHM 5 1 16W FENGHUA R111 061G0402750 JF RST CHIPR 75 OHM 5 1 16W FENGHUA R105 061G0402750 JF RST CHIPR 75 OHM 5 1...

Page 70: ...061G1206301 JF RST CHIPR 300 OHM 5 1 4W FENGHUA R469 061G1206301 JI RST 300 OHM 5 1 4W TA I R470 061G1206301 JI RST 300 OHM 5 1 4W TA I C134 065G040210412K A CAP CHIP 0402 100NF K 16V X7R C713 065G04...

Page 71: ...HIP 0402 100NF K 16V X7R C148 065G040210412K A CAP CHIP 0402 100NF K 16V X7R C403 065G040210412K A CAP CHIP 0402 100NF K 16V X7R C408 065G040210412K A CAP CHIP 0402 100NF K 16V X7R C152 065G040210412K...

Page 72: ...0402 100NF 10 16V X7R C433 065G040210412K Y CAP 0402 100NF 10 16V X7R C407 065G040210412K Y CAP 0402 100NF 10 16V X7R C136 065G040210412K Y CAP 0402 100NF 10 16V X7R C408 065G040210412K Y CAP 0402 10...

Page 73: ...CHIP 0402 220PF 50V NPO C608 065G040222131J T CAP CHIP 0402 220PF 50V NPO C606 065G040222131J T CAP CHIP 0402 220PF 50V NPO C107 065G040222322K T CAP MLCC 0402 22NF K 25V X7R C107 065G040222322K Y CA...

Page 74: ...AP 0402 680PF 50V X7R 10 C432 065G040268132K Y CAP 0402 680PF 50V X7R 10 C620 065G060310432K F CAP CHIP 0603 0 1UF K 50V X7R C623 065G060310432K F CAP CHIP 0603 0 1UF K 50V X7R C620 065G060310432K M C...

Page 75: ...OHM 6A MGLB2012 120T LF FB407 071G 56K121 TA CHIP BEAD 120R 6000MA HCB2012KF 121T60 FB601 071G 56K121 TA CHIP BEAD 120R 6000MA HCB2012KF 121T60 FB402 071G 56K121 TA CHIP BEAD 120R 6000MA HCB2012KF 121...

Page 76: ...DS ZD101 093G 39S 24 T RLZ 5 6B LLDS ZD105 093G 39S 24 T RLZ 5 6B LLDS ZD105 093G 39S940 T ZENER GLZ5 6B 5 6 0 5 MINI MELF LL 34 ZD103 093G 39S940 T ZENER GLZ5 6B 5 6 0 5 MINI MELF LL 34 ZD106 093G 39...

Page 77: ...6 067G204V471 2K CAP CS 470UF 20 10V 8 8 2000 HR 3 4A GP C716 067G204V471 2L CAP CS 470UF 20 10V 8 8 2000 HR 3 4A OC C781 067G315M1013HV EC 100UF 20 16V 6 3 7 C753 067G315M1013HV EC 100UF 20 16V 6 3 7...

Page 78: ...16W 5 TZAI YUAN R769 061G0402103 JT RST CHIP 10K 1 16W 5 TZAI YUAN R764 061G0402103 JT RST CHIP 10K 1 16W 5 TZAI YUAN R775 061G0402103 JT RST CHIP 10K 1 16W 5 TZAI YUAN R772 061G0402103 JT RST CHIP 1...

Page 79: ...210412K 3 CAP CHIP 0402 100N 16V X7R 10 C761 065G040210412K 3 CAP CHIP 0402 100N 16V X7R 10 C768 065G040210412K 3 CAP CHIP 0402 100N 16V X7R 10 C767 065G040210412K 3 CAP CHIP 0402 100N 16V X7R 10 C758...

Page 80: ...0NF 10 16V X7R C758 065G040210412K Y CAP 0402 100NF 10 16V X7R C762 065G040210412K Y CAP 0402 100NF 10 16V X7R C791 065G040210412K Y CAP 0402 100NF 10 16V X7R C778 065G040210412K Y CAP 0402 100NF 10 1...

Page 81: ...0 071G 56K121 M CHIP BEAD 120OHM 6A MGLB2012 120T LF FB757 071G 56K121 M CHIP BEAD 120OHM 6A MGLB2012 120T LF FB751 071G 56K121 M CHIP BEAD 120OHM 6A MGLB2012 120T LF FB754 071G 56K121 M CHIP BEAD 120...

Page 82: ...56015K EC 56UF 20 450V 12 5 40 2000 HR C903 067G215Z56015K EC 56UF 20 450V 12 5 40 2000 HR C902 067G215Z56015K EC 56UF 20 450V 12 5 40 2000 HR L901 073G 174241 X LINE FILTER 18MH MIN EF20 3LFEF2022 30...

Page 83: ...W FENGHUA R934 061G0805102 JT RST CHIPR 1K OHM 5 1 8W TZAI YUAN R926 061G0805102 JT RST CHIPR 1K OHM 5 1 8W TZAI YUAN R818 061G0805103 JF RST CHIPR 10K OHM 5 1 8W FENGHUA R801 061G0805103 JF RST CHIPR...

Page 84: ...AI YUAN R902 061G1206470 JT RST CHIPR 47 OHM 5 1 4W TZAI YUAN R901 061G1206470 JT RST CHIPR 47 OHM 5 1 4W TZAI YUAN R817 061G1206681 JT RST CHIPR 680 OHM 5 1 4W TZAI YUAN R909 061G1206682 JT RST CHIPR...

Page 85: ...80547432K A CAP CHIP 0805 0 47UF K 50V X7R C811 065G080547432K F 0805 0 47UF K 50V X7R C810 065G080547432K F 0805 0 47UF K 50V X7R C807 065G080547432K F 0805 0 47UF K 50V X7R C804 065G080547432K F 080...

Page 86: ...006G 31500 EYELET C907 067G515S4716LT EC 470UF 20 35V 12 5 12 C927 067G515S4716LT EC 470UF 20 35V 12 5 12 FB906 095G 90 23 JUMP WIRE C908 067G515S4716LT EC 470UF 20 35V 12 5 12 J9021 095G 90 23 JUMP W...

Page 87: ...S C935 065G306M33233R CAP Y1 3 3NF 20 250V Y5U C916 067G215C4706KT EC 47UF 20 35V 8 9 EM C911 067G215C4713KT EC 470 20 16 8 9 EM ZD902 093G 3960252T ZENER MTZJ20B 18 63 19 59V 0 5W DO 35 D902 093G 602...

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