Acer AL2623W Service Manual Download | Manualshive

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Acer

Service Manual

Service Manual

LCD Monitor Acer AL2623W

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Summary of Contents for AL2623W

Page 1: ...Acer Service Manual Service Manual LCD Monitor Acer AL2623W 0 ...

Page 2: ... Release Copyright Copyright 2006 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 AL2623 Service Manual ...

Page 3: ...LY 10 1 EXPLODED DIAGRAM 10 2 DISASSEMBLY BLOCK 11 3 ASSEMBLY BLOCK 12 CHAPTER 5 TEST AND ADJUSTMENT 13 1 GENERAL POINTS 13 2 INPUT SIGNAL 14 3 FUNCTION CHECK 16 4 DISPLAY CHECK 17 5 PICTURE CHECK 18 CHAPTER 6 TROUBLE SHOOTING 21 1 NO POWER LED OFF 21 2 18VDC OUTPUT VOLTAGE IS UNSTABLE 22 3 5VDC OUTPUT POWER IS UNSTABLE 23 4 5VDC OUTPUT POWER IS UNSTABLE 24 5 AL2016W BACKLIGHT CAN T BE TURNED ON I...

Page 4: ... 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 non ammonia based cleaner onto the cloth not directly onto the class screen z 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 visu...

Page 5: ... 2 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 ...

Page 6: ... power section supplies 14V 5V for Inverter Audio and Interface board used The inverter section drives the backlight of panel and the DC DC conversion The Audio section drives speaker 2 x1W Power Audio BD Including AC DC Power Supply and Audio Interface Board VGA input Keypad BD Flat panel LVDS interface and CCFL Including Inverter BD AC input Range 100V 240V Host computer VGA signal input and DDC...

Page 7: ...Acer Service Manual 2 Interface BOARD DIAGRAM 6 ...

Page 8: ...r D815 is rectifier for DC 5V output C843 and C844 are filter for DC 5V 3 1 4 High DC Voltage to Low Voltage 24V Control Circuit This circuit same section 3 1 3 IC802 is this DC DC circuit PWM controller When pin6 of IC802 be charged to 12V IC802 start drive Q803 to transform high DC voltage to low DC voltage 24V D806 Q804 C818 and C815 provide auxiliary power for IC802 normal operation R832 and R...

Page 9: ...er Consumption Function Test 4 1 Test mode 1920x1200 60 Hz 4 2 Test pattern pattern 41 of WHITE 4 3 Adjusting both brightness value to maximum 4 4 Measure power consumption as the following Status Power Consumption LED Display Normal 130W with audio Green Standby No H V sync 2W Orange Power off 1W No display ...

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

Page 11: ...ROSS W WAS M3 5 NI 8 SCREW PW CROSS T3 8 Zn ROHS 2 SCREW P CROSS M4 6 BLACK NL ROHS 4 SCREW P CROSS W WAS M3 6 Zn 9 SCREW B CROSS T T4 10 BLK ROHS 8 SCREW B CROSS M4 5 BLK ROHS 6 SCREW P CROSS M4 6 BLACK NL ROHS 2 stand Ass y 1 SCREW P CROSS M4 16 BLAC K NL ROHS 1 Base Ass y 1 Back Cover 1 SCREW B CROSS M4 6 BLK NL NYLOK 4 BRACKET LEFT 2 Front Bezel assm 1 BRACKET BACK LP2610 Ro HS 2 CHASSIS 1 CHA...

Page 12: ...e 1 SCREW P CROSS W WAS M3 6 Zn 5 SCREW B CROSS W W T M4 6 ZN 1 BOLT 4 40x11 8 Ni 4 SCREW PW CROSS W WAS M3 5 NI 8 SCREW PW CROSS T3 8 Zn ROHS 2 SCREW P CROSS M4 6 BLACK NL ROHS 4 SCREW P CROSS W WAS M3 6 Zn 9 SCREW B CROSS T T4 10 BLK ROHS 8 SCREW B CROSS M4 5 BLK ROHS 6 SCREW P CROSS M4 6 BLACK NL ROHS 2 PANEL LPL Panel Ass y 1 BRACKET LEFT 2 Front Bezel assm 1 BRACKET BACK LP2610 R oHS 2 CHASSI...

Page 13: ... distance 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 OS...

Page 14: ...eparate 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 Mode Resolution active dot Resolution total dot Horizontal Frequency KHz Vertical Frequency Hz Nominal Pixel Clock MHz 640x480 60Hz 800 x 525 31 469 59 941 25 175 640x480 72Hz 832 x 520 37 861 72 809 31 500 VGA 640x480 75Hz 840 x 500 37 500 75 0...

Page 15: ...pin assignments D Sub Pin Assignment PIN No SIGNAL PIN No SIGNAL 1 Red video input 9 VGA 5V GND 2 Green video input 10 3 Blue video input 11 GND 4 GND 12 Serial data line SDA 5 Cable detect 13 H Sync H V 6 Red video GND 14 V Sync 7 Green video GND 15 Data clock line SCL 8 Blue video GND DVI D Pin Assignment Digital Only Connector Pin Assignments Pin Signal Assignment Pin Signal Assignment Pin Sign...

Page 16: ...Refer to preset timing table and power saving mode 3 4 2 Test pattern pattern 1 of crosshatch GENERAL 1 3 4 3 After change above timing and execute Auto function automatically picture should fit in with active display screen 3 4 4 Under power saving mode LED lamp on the key board should be orange 3 5 Power Consumption Function Test 3 5 1 Test mode 1920x1200 60 Hz 3 5 2 Test pattern pattern 41 of W...

Page 17: ... 4 2 Panel Defect Inspection This item should follow IIS 4 2 1 Test mode 1920x1200 60 Hz 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 fault class II Defect Type Specification Major Minor Bright dot defect 3pcs Dark dot defect 4pcs Total bright and dark dots 5pcs Bright Dots 2 Adjacent B N 1 pair...

Page 18: ...m D 0 5 mm Dot Shape Particle Scratch and Bubbles in Display area or on The Polarizer N 3 L 0 5mm and W 0 05 mm Ignored 0 5mm L 5mm and 0 05mm W 0 1mm N 4 Line Shape Particles Scratch Fiber and Bubbles in display area or on The Polarizer L 5mm or W 0 1mm N 0 Display non uniformity There should be non uniformity through 5 transparency of filter or judge by limit sample if necessary Scratch No harm ...

Page 19: ...ce by color analyzer as the following Chromaticity Coordinate Mode x y Y 9300K 0 283 0 030 0 298 0 030 180 USER Default Default 240 6500K 0 313 0 030 0 329 0 030 240 5 3 Brightness Out Video signal input 700mV 2 5 3 1 Test mode 1920x1200 60 Hz 5 3 2 Test pattern pattern 41 of WHITE 5 3 3 Test tool Color Analyzer Chroma7120 Set brightness and contrast to be maximum with white pattern to measure the...

Page 20: ...heck circuit if short Check IC805 T803 Q805 Check F801 P801 D801 RT801 Check pin1 of IC805 voltage if under 7 2V Check R859 R860 IC805 C837 Check Pin6 of IC805 voltage 12V Check D815 T803 C843 C844 L805 F803 Yes No No Yes Yes Yes Yes No No No END Check loading circuit is short No power LED off Yes 19 ...

Page 21: ...f short Check IC801 T801 Q806 Check Q801 C808 ZD801 Check pin1 of IC802 voltage if under 7 2V Check R835 Q804 IC802 C815 Check Pin6 of IC802 voltage 12V Check D807 D810 T802 C825 C826 L804 F802 Check loading circuit is short Yes Yes Yes Yes Yes Yes No No No No No END No backlight LED on 20 ...

Page 22: ...LE 6FT BLACK SZ4120955 50 7 430300800820R HRN ASS Y 8pin 340mm UL1571 28 50 8 430303000710R HRN ASS Y LVDS 30P 270m UL1007 30 50 9 CABLE 430300100220R HRN ASS Y 1P 250mm BLACK UL1007 20 50 10 502090304900R CHASSIS LP2610 50 11 714071005800R ASSY STAND B LP2610 RoHS 50 12 714033008500R ASSY FRONT BEZEL G LP2610 RoHS 50 13 714021008200R ASSY BASE B LP2610 50 14 501021211200R COVER HINGE B LP2610 50 ...

Page 23: ...C3 3 R101 100K C164 0 1 16V C103 0 1 16V R106 10K U103 AIC1084 18PM 3 1 2 VIN ADJ VOUT C161 100u 16V C108 0 1 16V C158 0 1 16V R110 2K2 C104 10u 25V C145 0 1 16V R104 20K C150 0 1 16V R105 10K C109 100u 16V C149 0 1 16V C152 0 1 16V C141 100u 16V C154 100u 16V C155 100u 16V C162 0 1 16V C165 0 1 16V C142 100u 16V R108 2K2 R103 10K C153 0 1 16V C111 0 1 16V Q103 PMBT3904 1 3 2 Q102 PMBT3904 1 3 2 U...

Page 24: ... NC D108 BAV99 1 3 2 R147 10 1 C128 33p 50V ZD103 6V2 R145 10 1 CN103 DZ11AA1 H5W6 4F 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 16 17 D103 BAV99 1 3 2 R150 10K ZD104 6V2 R121 0 R126 470 R135 75 1 R119 100 R131 100 D105 BAV99 1 3 2 R118 100 C115 0 047u 16V ZD102 6V2 R143 10 1 R114 100 D112 BAV99 1 3 2 R124 100 C125 NC R151 10K D109 BAV99 1 3 2 R146 10 1 C117 0 047u 16V U104 AT24C02BN 1 2 3 4 5 6 7 8 A0 A...

Page 25: ...7 170 171 108 159 140 13 62 67 68 69 70 71 72 73 74 75 76 78 201 135 136 137 138 141 142 143 144 145 146 147 148 149 150 151 152 133 105 107 110 111 112 115 116 117 118 119 120 121 122 123 124 127 128 129 65 181 186 187 66 63 202 203 163 52 53 103 77 81 82 83 84 85 154 114 88 89 90 91 92 93 126 139 94 95 96 97 98 99 100 101 106 104 130 134 153 200 79 206 162 194 182 188 189 190 191 192 193 196 197...

Page 26: ...87 0 1 16V U113SDRAM 7 16M 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 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 VDD DQ0 DQ1 VSSQ DQ2 DQ3 VDDQ DQ4 DQ5 VSSQ DQ6 DQ7 VDDQ DQML WE_ CAS_ RAS_ CS_ BA A10 A0 A1 A2 A3 VDD VSS A4 A5 A6 A7 A8 A9 NC CKE CLK DQMH NC VDDQ DQ8 DQ9 VSSQ DQ10 DQ11 VDDQ DQ12 DQ13 VSSQ DQ14 DQ15 VSS C174 0 1 16V C188 0 1 16...

Page 27: ... 2 P1 3 P1 4 P1 5 P1 6 P1 7 DA0 P5 0 DA1 P5 1 DA2 P5 2 DA3 P5 3 DA4 P5 4 DA5 P5 5 P6 7 DA13 P6 6 DA12 P6 5 DA11 P6 4 DA10 P6 3 AD3 P6 1 AD1 P6 0AD0 HSDA P3 1 TXD HSCL P3 0 RXD VDD VSS ISCL P7 7 ISDA P3 4 T0 VDD3 DA9 P7 2 DA8 P7 1 HSDA2 P7 6 HSCL2 P7 5 P6 2 AD2 VCOAST P4 2 DA6 P5 6 CKO DA7 P7 0 HCLAMP VBLANK P4 0 HBLANK P4 1 HSYNC P7 3 VSYNC P7 4 RP104 10Kx4 8 1 7 2 6 3 5 4 R182 100 CN106 2x4P 2 0m...

Page 28: ...V L801 CHK 080 4 1 3 2 R828 1K D804 MUR1100ERL C810 1u 16V C826 680u 35V D802 1N5406 F801 3 15A 250V R816 10R C828 0 1 100V R815 0R15 2W D810 SRF10 20CT 1 2 3 R802 330K L802 CHK 081 4 1 3 2 ZD802 15V C832 2200p 400V F803 4A 125V R807 220K 1 C815 47u 25V R820 9K1 1 R841 1K R831 33K R806 680K Q802 2N7002K 1 3 2 C807 0 1 50V ZD801 18V CN801 100mm 14P 1 2 3 4 5 6 7 8 9 10 11 12 13 14 R830 10K R812 19 ...

Page 29: ...0V R868 1K R849 20K 1 ZD806 12V C850 10u 25V C853 0 1 50V Q806 2SC1815 1 3 2 R878 5K1 1 R874 0R01 1W C842 3300p 500V IC811 LM239 2 10 14 13 12 11 8 1 7 3 9 4 5 6 OUTPUT1 INPUT4 OUTPUT3 OUTPUT4 GND INPUT4 INPUT3 OUTPUT2 INPUT2 V INPUT3 INPUT1 INPUT1 INPUT2 R873 3K3 1 C865 47p 1KV C830 4 7u 10V R886 1K2 1 L805 5uH 4A R855 0R39 2W R885 150 1W D821 1N4148 ZD804 15V D818 SKS20 04AT R879 5K1 1 R899 1K D...

Page 30: ...BLE VOLUME ON OFF Brightness GND R911 4K7 R912 5K6 R910 5K6 C863 1000p 50V Q809 2SC1815 1 3 2 R903 4K7 Q808 2N7002K 1 3 2 R905 5K6 R904 4K7 R901 10K Q812 2N7002K 1 3 2 R906 1K R902 10K IC809 LTV817M 3 1 4 2 IC812 BT169D R900 10K Q810 PMBT3904 1 3 2 Q811 PMBT3904 1 3 2 C822 47u 25V CN802 12P 2 0mm 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 R907 5K6 R908 10K C862 47u 25V E 5V Power_STBY G...

Page 31: ...OL R R VOL VOLUME 5V Audio_ENABLE 5V 5V C705 100u 16V C703 0 1 25V C701 1u 16V Q701 PMBT3904 1 3 2 C706 100u 16V P701 PHONE_JACK 2 3 4 5 1 R703 10K R708 100K R705 4K7 U701 APA2069 14 1 3 4 5 7 11 6 10 9 2 12 13 8 16 15 Rout SHUTDOWN Rin GND GND VOLUME Lout Lin VDD Lout BYPASS GND GND SE BTL Rout VDD C707 1u 16V C709 2 2u 16V C702 0 1 25V CN701 4P R A 2 0mm 1 2 3 4 C708 1u 16V R704 10K ...

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