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Acer

Service Manual

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Summary of Contents for AL2016

Page 1: ...Acer Service Manual Service Manual LCD Monitor Acer AL2016 0 ...

Page 2: ...elease Copyright Copyright 2005 InnoLux Tech Corp Ltd All Rights Reserved This manual may not in whole or in part be copied Photocopied reproduced translated or converted to any electronic or machine readable form without prior written permission of InnoLux Tech Corp Ltd Acer AL2016 Service Manual 1 ...

Page 3: ...ASSEMBLY 9 1 EXPLODED DIAGRAM 9 2 DISASSEMBLY BLOCK 10 3 ASSEMBLY BLOCK 11 CHAPTER 5 TEST AND ADJUSTMENT 12 1 GENERAL POINTS 12 2 INPUT SIGNAL 13 3 FUNCTION CHECK 15 4 DISPLAY CHECK 16 5 PICTURE CHECK 17 CHAPTER 6 TROUBLE SHOOTING 20 1 NO POWER LED OFF 20 2 18VDC OUTPUT VOLTAGE IS UNSTABLE 21 3 5VDC OUTPUT POWER IS UNSTABLE 22 4 5VDC OUTPUT POWER IS UNSTABLE 23 5 AL2016W BACKLIGHT CAN T BE TURNED ...

Page 4: ...wet unplug the power cable immediately and consult your closed dealer Always unplug the monitor before cleaning it Clean the cabinet with a clean dry cloth Apply non ammonia based cleaner onto the cloth not directly onto the class screen Do not place heavy objects on the monitor or power cord 2 PRODUCT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety visual in...

Page 5: ... SERVICE TOOLS EQUIPMENT REQUIRED 1 SIGNAL GENERATOR 2 MULTIMETER 3 SCREW DRIVER 4 OSCILLOSCOPE 5 Soldering IRON 6 SOLDER 7 VGA Cable 15pins point to point 8 Color Analyzer 9 Myson412 ISP Board 10 EDID Board 11 EDID program file 4 ...

Page 6: ...eaches the threshold level 12 8V IC 802 start up and create a PWM waveform to control the power MOSFET then energy is transferred to secondary terminal through the transformer T801 the auxiliary voltage 12V and the output voltage 18V be created the auxiliary voltage supply a continue current to IC802 the level of out put voltage is feedback to FB pin of IC802 through R823 R837 R822 IC803 and IC801...

Page 7: ...issue DC out put will automatically recover 2 2 I F Board Circuit 2 2 1 RGB CAPTURE Signal RED GREEN BLUE input through CN102 1 2 3 Stop DC via C117 C118 and C119 and then enter into U105 MST9251A analog input terminal 33 30 28 and then MST9251A deals with signal internally D103 D104 D105 are ESD protector to prevent U105 from ESD Signal DDC_SCL series clock inputs via CN102 15 and then passes thr...

Page 8: ...s from 3 3V through C108 filtering by U101 which is output 1 8V LDO for U105 used 3 Inverter circuit 3 1 Low voltage to high voltage circuit 18VDC provides the power for IC501 through F501 from power board the control signals Brightness and ON OFF come from I F board ON OFF signal connect to pin8 of IC501 and makes IC501 enable Brightness signal connect to pin7 of IC501 and regulates the panel bri...

Page 9: ... of IC501 will adjust output voltage Open Lamp Protection In normal operation the test points of OP1 OP2 OP3 OP4 OP5 OP6 are sensed a high level AC voltage the AC signal for example OP1 invert DC voltage through R531 C540 so the high level DC voltage reaches the gate pin of Q502 So the gate pin of Q501 has a low level voltage and the IC501 is normal operation Once one of signal OP1 OP2 OP3 OP4 OP5...

Page 10: ...Acer Service Manual Chapter 4 Disassembly Assembly 1 Exploded Diagram 9 ...

Page 11: ...Acer Service Manual 2 Disassembly Block 10 ...

Page 12: ...Acer Service Manual 3 Assembly Block 11 ...

Page 13: ...stance from eyes to panel is defined as 50cm 1 4 2 Visual distance from instrument to panel is defined as 20cm 1 5 Key Function Description 1 5 1 Control buttons on the front bezel CONTROL KEY KEYS FUNCTION AUTO A When OSD un displays press AUTO to perform auto adjustment B When OSD displays press AUTO to return to previous level menu MENU A When OSD isn t shown on screen press MENU to enter OSD i...

Page 14: ...e separate sync Input impedance 10K ohms the signals are defined as follow Separate sync TTL level Positive Negative Composite sync Sync on Green b Digital signal Option Standard DVI 2 1 2 Input signal mode PRESET TEST MODE TIMING VESA MODES Horizontal Vertical Mode Resolution Total Nominal Frequency 0 5KHz Sync Polarity Nominal Frequency 1Hz Sync Polarity Nominal Pixel Clock MHz 640 480 60Hz 800 ...

Page 15: ...927 N 80 000 1152 870 75Hz 1456 915 68 681 N 75 062 N 100 00 Other MODES XGA 1024 768 72Hz 1360 800 57 669 N 72 086 N 78 434 SXGA 1280 1024 70Hz 1696 1072 74 882 P 69 853 P 127 000 Note DVI do not support timing 1680x1050 75Hz if DVI is built 2 1 3 Signal cable a 15 pin D sub VGA cable male b Single link 18 1 pin DVI D male Option 2 1 4 Interface Analog signal The input signals are applied to disp...

Page 16: ...t pattern pattern 1 of crosshatch GENERAL 1 3 2 3 Select OSD menu to execute Auto function screen picture shouldn t appear abnormal phenomenon and picture on screen should fit in with active display screen 3 3 Auto Color Balance 3 3 1 Test mode 800x600 60 Hz 3 3 2 Test pattern pattern 48 of 32 gray levels 32 GRAYS 3 3 3 Enter Factory Mode pressing Auto color key and execute AUTO 3 4 Timing Check 3...

Page 17: ...ion and then check picture of shut down under windows 98 operating system or flicker pattern of pixel on off It should be that no flicker be found on panel screen 4 2 Panel Defect Inspection This item should follow IIS 4 2 1 Test mode 1680 x 1050 60Hz 4 2 2 Test pattern Crosshatch Full white Red Green Blue Black 16 color bar 64 gray bars 4 2 3 Display quality must be according to DIN 13406 2 pixel...

Page 18: ...dge by limit sample if necessary Scratch Dirt No harm Wrap No harm Bezel Sunken No harm No label Invert label Broken No Dirt Word can be read Not clear Word out of h Mistake No Label Position Be attached on right position Not enough No Screw Limp No Connecto Connection t t No bend on pins and damage FPC FFC Broken No 5 PICTURE CHECK 5 1 Check brightness uniformity 5 1 1 Test mode 1680x1050 60 Hz 5...

Page 19: ...maximum with white pattern to measure the screen center the light output shall be BL 240cd m2 5 4 DDC Data Check 5 4 1 EDID program 5 4 2 Execute main program for EDID writing refer to model type using scanner for barcode download 5 4 3 If writing EEPROM is successful and then shows text PASS on screen if writing EEPROM is failure then shows text FAIL 5 4 4 EDID data For example For QD20AL0101 Pan...

Page 20: ...F 01 03 80 2B 1B 78 EA C3 15 A6 56 4A 9B 24 2 16 50 54 BF EF 80 A9 40 01 01 01 01 01 01 01 01 3 01 01 01 01 01 01 08 39 90 30 62 1A 27 40 68 B0 4 36 00 B1 0F 11 00 00 1E 00 00 00 FD 00 38 56 1F 5 54 13 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30 6 30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC 7 00 41 4C 32 30 31 36 57 0A 20 20 20 20 20 00 CS 19 ...

Page 21: ...Acer Service Manual Chapter 6 TROUBLE SHOOTING 1 No Power LED Off 20 ...

Page 22: ...Acer Service Manual 2 18VDC output voltage is unstable 21 ...

Page 23: ...Acer Service Manual 3 5VDC Output power is unstable 22 ...

Page 24: ...Acer Service Manual 4 5VDC Output power is unstable 23 ...

Page 25: ...s C hange R 509 R 511 C 519 Check I F board Y es Check IC501 pin7 voltage is PW M pulse w ave Check CN 501 CN 504 are O K Y es N O Restart connect the lam p w ire Check protection circuit Q 501 Q 502 are ok N O C hange Q 501 Q 502 C heck U 501 U 502 U 503 U 504 are O K N O Change U 501 U 502 U 503 U 504 Y es N O C heck R 501 R 508 and C 515 are ok N O Y es C hange R 501 R 508 C 515 Check I F board...

Page 26: ...Acer Service Manual 6 Troubleshooting List TDK inverter 25 ...

Page 27: ...09400701R NTC 5Ω 4A 10ψ P 5mm F ROHS 1 RT801 14 430613420290R FUSE SLOW 2 250 Axial Lead 3 6x10mm 1 F801 15 440149000190R SKT AC 10A 250V U C V G Y 65mm 1 P801 TU 301 SP SR7 AC3 019 16 415350104551R RES MOF 2W 100KΩ J MINI HK17 5 1 R813 17 511110000101R HOT MELT ADHESIVES 526 0 003 18 418247233020R CAP CD X7R 4700pF 1KV K W O FORMING 1 C806 19 415350308551R RES MOF 2W 0 3Ω J MINI HK17 5 1 R815 20 ...

Page 28: ... ZENER 39V MTZS05 39 G SOD 123 MMC 1 ZD801 37 1 411100539050R ZENER MMSZ39T1G SOD 123 ON 1 37 2 411101139050R ZENER BZV55 C39 SOD80C PHILIPS 1 38 412000412840R IC NCP1203D60R2G SO 8 ON ROHS 1 IC802 39 414908010350R RES SMD 0805 10KΩ J RT ROHS 2 R804 R811 40 414908010250R RES SMD 0805 1KΩ J RT ROHS 7 R812 R820 R821 R827 R830 R839 R828 41 414908068450R RES SMD 0805 680KΩ J RT 6 R805 R806 R807 R808 R...

Page 29: ...0063240R DIO 1N4007 1000V 1A DO 41 FAIRCHILD 1 D802 74 1 411020063020R DIO 1N4007 LF 1000V 1A DO 41 FRONTIER 1 75 430405007590R JMPR 7 5mm D 0 6mm AT ROHS 6 J801 J802 J803 J804 J809 J811 76 430405010090R JMPR 10mm D 0 6mm AT ROHS 8 J806 J807 J808 J810 J812 J813 J814 J815 77 506140005700R LABEL BARCODE BLANK 33x7mm 1 ROHS FOR PCB 78 490450500100R PCB POWER LE2016 ROHS 1 PCB 79 430405012590R JMPR 12...

Page 30: ...105 ST 5x11 1 C109 11 790451340900R PCBA IF BOARD SMD LE2016 9J0 1 C101 C106 C107 C108 C110 C112 C113 C115 C124 C125 C126 C127 C128 C132 C137 C138 C139 C140 C141 C142 C143 C144 C146 C147 C148 C149 C150 C151 C152 C153 C154 C155 C156 C158 C159 C164 C165 C166 C167 C168 C169 C170 C171 C172 C173 C176 C177 C178 C181 C182 C183 C186 C190 C191 C192 C193 C194 C195 C196 C197 C198 C199 C200 C201 C202 C203 C20...

Page 31: ... 1 16W J 8P4R RP109 RP110 RP111 RP112 13 R101 R103 R104 R105 R119 R120 R130 R132 R133 R143 27 414916047250R RES SMD 0603 4 7KΩ J RT R145 R151 R152 28 414916010350R RES SMD 0603 10KΩ J RT ROHS 7 R102 R108 R125 R126 R147 R148 R162 29 414916010450R RES SMD 0603 100KΩ J RT 1 R106 30 414916020350R RES SMD 0603 20KΩ J RT ROHS 1 R107 31 414916022050R RES SMD 0603 22Ω J RT ROHS 8 R170 R171 R172 R173 R174 ...

Page 32: ...D263238E VC36 144BALL FABG SAMSUNG 1 49 2 412000427530R IC HY5DU283222BFP 33 144BALL FABG HYNIX 1 49 3 412000427240R IC K4D263238E VC33 144BALL FABG SAMSUNG 1 50 411100662950R ZENER 6 2V ZMM55 C6V2 LF SMD FRONTIER 5 ZD101 ZD102 ZD103 ZD104 ZD105 LABEL BARCODE BLANK 33x7mm 51 506140005700R ROHS FOR PCB 1 52 490451300100R PCB INTERFACE LE2016 ROHS 1 PCB BEAD CORE SMD 0603 120Ω 300mA 53 432002312144R...

Page 33: ...Acer Service Manual Attachment 2 Schematic 32 ...

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Page 42: ...Acer Service Manual Attachment 3 PCB Layout 41 ...

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