Acer AL1917W C Service Manual Download Page 25 | Manualshive

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Acer

Service Manual

24

5. Bad Screen

C heck the pins of

U 105

B ad S creen

C heck C rystal:

pin96,97 of U 105

C hange L V D S

C able

L V D S C able

R einsert

C heckX 10 1, C 153,

C 154

L V D S C able N G

W orkm anship

O K

O K

O K

N G

N G

N G

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Summary of Contents for AL1917W C

Page 1: ...Acer Service Manual 0 Service Manual LCD Monitor Acer AL1917W ...

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 AL1917W Service Manual ...

Page 3: ...CTION DESCRIPTION 12 1 6 BURN IN AGING PATTERN 13 1 7 WARM UP 13 2 INPUT SIGNAL 13 2 1 VIDEO SIGNAL INPUT 13 3 FUNCTION CHECK 15 3 1 OSD FUNCTION TEST 15 3 2 SCREEN PICTURE CHECK 15 3 3 AUTO COLOR BALANCE 15 3 4 TIMING CHECK 15 3 5 POWER CONSUMPTION FUNCTION TEST 15 3 6 VGACABLE DETECT TEST 16 3 7 HI POT TEST 16 3 8 GROUNDING TEST 16 3 9 BUMPING TEST 16 4 DISPLAY CHECK 16 4 1 PANEL FLICKER CHECK 1...

Page 4: ...s 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 ...

Page 5: ...OOLS 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 DVI Cable DVI D 24 1 pin 9 Color Analyzer 10 Mstar ISP Board 11 EDID Board 12 EDID program file ...

Page 6: ...ower 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 2 Interface BOARD DIAGRAM Inverter Power Including AC DC Power Supply Inverter Interface Board Keypad BD Flat panel LVDS interface and CCFL AC input Range 100V 240V Host computer VGA DVI signal input and DDC Audi...

Page 7: ...rrent input the FB pin for duty cycle control 3 1 3 DC_5V and DC_14V Output Circuit For DC 5V D805 is used to rectify the inducted current R828 and C814 are used to store energy when current is reversed The parts including C818 C822 C820 L803 are used to smooth the current waves For DC 14V D803 is used to rectify the inducted current R827 and C813 are used to store energy when current is reversed ...

Page 8: ...U105 TSUM56AL 1 TSUM16AL 1 85 output CCFL_ON OFF H potential to control Inverter on off TCLK by Crystal 14 318MHz input to U105 TSUM56AL 1 TSUM16AL 1 96 97 Please refer to TSUM56AL Pin Assignments table in page 3 2 4 Regulator Circuit 5V is from switching mode power supply for Panel used 3 3V generates from 5V through C101 and C103 filtering and U101 which is output 3 3V LDO for U103 U106 U108 and...

Page 9: ...rmines the amount of energy delivered to the CCFLs R504 C504 R505 C505 R532 C529 R530 C522 are snubber networks they suppress Voltage transient spike in drain of power MOSFET 3 R506 R510 C509 C513 C514 R525 R531 C528 C525 and C527 are connected between high voltage output connector and ground the divided AC voltage is inverted DC voltage through D502 D503 D508 and D509 The sense voltage feed back ...

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

Page 11: ...k Zn NL ROHS 4 BRACKET FINGER 1 HINGE 1 STAND 1 SCREW B CROSS W W SPR M4 20 Zn ROHS 3 ASSY FRONT BEZEL AL1917W LCD Monitor ASSY PANEL UNIT M3 4 Zn ROHS 4 TAPE MYLAR 1 PANEL INNOLUX M190A1 L01 CHASSIS 1 PCBA I F BOARD 1 PCBA INV DC DC 1 KEY PAD 1 HRN ASS Y 8P CABLE 30P FFC SPEAKER 1 BOLT 4 40x11 8 Ni ROHS 2 W O DVI or 4 W DVI M3 5 Ni ROHS 4 P W SPR M3 6 Zn ROHS 1 MYLAR 4 FRONT BEZEL 1 FUNCTION KEY ...

Page 12: ...r 4 W DVI PANEL INNOLUX M190A1 L01 ASSY STAND 1 M4 8 Black Zn NL ROHS 4 KEY PAD 1 HRN ASS Y 8P 1 ASSY PANEL 1 SCREW P CROSS W WAS M3 4 Zn 4 TAPE MYLAR 1 ASSY BEZEL 1 LE 1954 LCD Monitor BEZEL 1 BUTTON POWER KEY 1 BUTTON FUNCTION 1 LENS 1 CHASSIS 1 MYLAR 4 KEY PAD 1 HRN ASS Y 8P 1 STAND 1 HINGE 1 BRACKET FINGER 1 SCREW B CROSS W W SPR M4 20 Zn ROHS 3 ASSY BASE 1 BASE 1 RUBBER 4 GASKET 1 PLATE BASE ...

Page 13: ... 4 1 Observation 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 ...

Page 14: ...nu Button Enter the factory Mode 1 6 Burn in Aging Pattern 1 6 1 Burn in patterns are full Red Green Blue White and Black 1 6 2 Stop burn in pattern by providing with video signal from D sub or DVI D connector 1 7 Warm Up All test units have to be done warm up after at least 2 hours in a room with temperature of 40 5 C Except particular requirement 2 INPUT SIGNAL 2 1 Video Signal Input ...

Page 15: ...00 46 9 75 0 49 500 48 4 60 0 65 000 56 5 70 0 75 000 1024 x 768 60 0 75 0 78 750 1152 x 864 67 5 75 0 108 000 1280 x 960 60 0 60 0 108 000 64 0 60 0 108 000 1280 x 1024 80 0 75 0 135 000 55 9 60 0 106 500 1440 x 900 75 0 75 0 136 750 VESA Standard 720 x 400 31 5 70 0 28 300 US Text 640 x 480 35 0 66 7 30 200 832 x 624 49 7 74 6 57 300 1024 x 768 60 2 75 0 80 000 1152 x 870 68 7 75 0 100 000 64 0 ...

Page 16: ...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 640x480 60 Hz 3 3 2 Test pattern pattern 42 of 5 MOSAIC 3 3 3 Enter Factory Mode pressing Auto color key and execute AUTO 3 4 Timing Check 3 4 1 Test mode Refer to preset timing table and power saving ...

Page 17: ... value brightness at maximum execute Auto function 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 4 2 1 Test mode 1440 x 900 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...

Page 18: ...m 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 Dirt No harm Wrap No harm Bezel Sunken No harm No label Invert label Broken No Dirt Word can be read Not...

Page 19: ...ine of luminance Min Fig 3 5 2 Color Temperature Check 5 2 1 Test mode 1440x900 60 Hz 5 2 2 Test pattern pattern 41 of WHITE 5 2 3 Test tool Color Analyzer Chroma7120 5 2 4 Set brightness to be maximum and contrast to be 50 measure color coordinate and luminance by color analyzer as the following Chromaticity Coordinate Mode x y 9300K 0 283 0 030 0 298 0 030 USER 6500K 0 313 0 030 0 329 0 030 ...

Page 20: ...6 7 8 9 A B C D E F 0 00 FF FF FF FF FF FF 00 04 72 87 AD 00 00 00 00 1 01 10 01 03 80 29 1A 78 E8 9A E5 A6 58 49 99 23 2 11 50 54 BF EF 80 90 4F 95 0F 81 80 81 40 81 0F 3 81 00 71 90 71 4F C4 22 A0 A0 50 84 1A 30 30 20 4 36 00 9A 01 11 00 00 1E 00 00 00 FD 00 38 4C 1F 5 54 0E 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 31 39 31 37 57 0A 2...

Page 21: ...ltage Check IC802 C804 T801 Check circuit if short Check F801 P801 RT 801 D801 Check pin6 of IC802 voltage about 12V CheckC810 D803 C807 Check pin2 of IC802 voltage about 3V Check primary OVP OLP and secondary feedback OVP circuit Check pin1 of IC802 voltage is below 1V Check R811 R810 R809 R808 R814 END ...

Page 22: ...ange R822 R823 R824 Check the R pin voltage of IC803 about 2 5V Check R819 R820 Check R818 D804 C807 if short Change R818 D804 C807 Check pin2 of IC802 voltage is 3V Check pin1 of IC802 voltage below 1V Change R808 R 809 R810 R 811 R815 R814 Q803 END Check the C pin voltage of IC803 if 3V Change IC803 ...

Page 23: ...Acer Service Manual 22 3 No raster ...

Page 24: ...n 85 of U105 Check crystal pin 96 97 waveform of U105 Check reset pin84 of U105 Check power supply for U105 Check power supply pin 1 2 of CN101 Check R167 Q106 R108 R110 Inverter Fail Check X101 C153 C154 Check C144 R172 Check FB102 FB103 FB105 FB106 Power fail NG NG NG NG NG NG YES YES YES YES YES YES ...

Page 25: ...r Service Manual 24 5 Bad Screen Check the pins of U 105 Bad Screen Check Crystal pin96 97 of U 105 Change LVDS Cable LVDS Cable Reinsert CheckX101 C153 C154 LVDS Cable NG W orkmanship OK OK O K N G N G NG ...

Page 26: ...reen END White screen Check LVDS signal Check Q101 Q103 Q110 C108 C109 Check Panel Enable of U105 pin48 Check VLCD is 5V Change LVDSCable LVDS Cable Reinsert Workmanship Panel Fail LVDS cable NG U105 Fail OK OK OK OK OK NG NG NG NG NG ...

Page 27: ...nd No Sound Re insert or Change the Line in Cable Check Vs of IC 701 Check the Input of IC 701 Check the output of IC 701 Check the Mute and Volume pins of IC 701 shorted or not End Power Fail Change IC 701 OK NG NG NG NG OK OK OK OK ...

Page 28: ...Acer Service Manual 27 Attachment 1 Bill of Material PCBA P I ...

Page 29: ...Acer Service Manual 28 ...

Page 30: ...Acer Service Manual 29 ...

Page 31: ...Acer Service Manual 30 PCBA IF ...

Page 32: ...Acer Service Manual 31 ...

Page 33: ...Acer Service Manual 32 PCBA KEY PAD ...

Page 34: ...ORY 2006 05 27 Project Name APPROVED TO RELEASE Author Date LE1939 AL1916W LCD Monitor Remark V01 8 1 A4 0921351069 AL1917W History 2006 05 27 InnoLux Document Number SIZE TITLE DATE SHEET OF Rev DRAWN BY CHECK BY APPRO BY warren wang Comments jonas yang First edition Version ...

Page 35: ...VCC1 8 C161 1000p 50V V01 8 2 A4 0921351069 AL1917W DC to DC 2006 05 27 InnoLux Document Number SIZE TITLE DATE SHEET OF Rev DRAWN BY CHECK BY APPRO BY Q110 2N7002 1 3 2 R108 4K7 KEY_1 D101 SKS20 04AT VOL_C R197 51 MUTE_C R101 390 R102 100K R163 100 C104 0 1 50V R191 4K7 VCC3 3 Q101 AP2305GN 1 3 2 ON OFF C101 100u 16V CCFL_ENABLE R105 20K U101 FS8860 33PJ 3 1 2 VIN ADJ VOUT LED_G_C VCC5V ON OFF Fr...

Page 36: ...3 3 DETECT R153 100 NC ZD104 5V6 NC R143 10 R136 2K2 CN102 DVI D_CON 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 RX2 RX2 GND RX4 RX4 SCL SDA VS RX1 RX1 GND RX3 RX3 5V GND HP RX0 RX0 GND RX5 RX5 GND RXC RXC DAT0 R128 4K7 NC GIN 3 TVS109 BAV99 NC 1 3 2 C122 NC R122 10K V01 8 3 A4 0921351069 1917W Input 2006 05 27 InnoLux Document Number SIZE TITLE DATE SHEET OF Rev DRAWN BY CHE...

Page 37: ...99 43 44 84 41 42 98 16 32 49 66 82 34 50 57 76 79 83 80 87 36 45 46 RIN0P GIN0P SOGIN0 BIN0P RIN0N GIN0N BIN0N HSY NC0 VSY NC0 REXT REFP REFM SDO SCK SCZ SDI PWM2 GPIO_P24 PWM1 GPIO_P25 LVACKM XIN XOUT LVA2P LVA2M LVA1P LVA1M LVA0P LVA0M LVB3P LVB3M LVBCKP LVBCKM LVB2P LVB2M LVB1P LVB1M LVB0P LVB0M LVACKP LVA3M LVA3P GND GND RX2P RX2N RX1P RX1N AVDD_DVI RX0P RX0N RXCKP RXCKN GND GND GND AVDD_ADC ...

Page 38: ...SPW 068 1 3 4 6 8 7 R504 33 R535 0 C515 2 2u 25V R507 3M3 1 C522 1000p 50V R515 NC C521 68p 50V D504 BAV99 1 2 3 C504 1000p 50V R506 3M 3KV R512 110K 1 D501 SN4148 C512 330p 50V C506 10p 3KV R526 1M R529 470 op2 C516 1000p 50V C519 0 1 50V C518 0 1 50V C501 470u 25V C526 220pF 50VNC D505 SN4148 C510 1000p 50V D507 BAV99 1 2 3 C509 3p 3KV VCC5V 3 R503 1K5 C507 2 2u 25V op2 C505 1000p 50V V01 4 4 A4...

Page 39: ... 04CT 1 2 3 C813 1000p 500V R810 510K C811 0 1 50V AC 264V RMS D802 MUR1100ERL L1 20mH 4 1 3 2 MUTE 2 VCC5V V01 4 3 A4 AL1917W POWER SUPPLY 2006 03 02 InnoLux Document Number SIZE TITLE DATE SHEET OF Rev DRAWN BY CHECK BY APPRO BY C812 220p 50V AC 264V RMS RT801 NTC 5R ZD802 16V C807 47u 25V P801 AC_SKT 1 2 3 AC 264V RMS L3 5uH R808 510K 14V CN801 60mm 8P 1 2 3 4 5 6 7 8 C819 1000u 10V C810 0 1 50...

Page 40: ... 0 1 50V R708 27K CN701 4P 2 0mm 1 2 3 4 Line_L C704 0 47 16V MUTE 2 P701 AUDIO IN 2 3 4 5 1 14V C711 4700p 50V R712 2K R702 10K R711 2K L C713 10u 25V R703 10K Q701 PMBT3904 1 3 2 Lay out guide 1 Tie the I C pin 1 2 3 18 19 20 to ground w ith a large copper pour open mask lay er Line_R C707 470u 16V C705 470u 16V R704 10K Q703 PMBT3904 1 3 2 U701 TDA7496L 1 2 3 13 18 19 20 4 5 6 7 8 9 10 11 12 14...

Page 41: ... 3 1 3 2 4 POWER GND SW103 TACT 4 3 1 3 2 4 MENU AMBER TO I F BD CN105 CN107 8P R A 2 0mm 1 2 3 4 5 6 7 8 LED101 LED G Y 3 2 1 KEY_POWER SW105 TACT 4 3 1 3 2 4 V01 8 7 Custom DOC AL1917W KEYPAD 2005 05 27 InnoLux Document Number SIZE TITLE DATE SHEET OF Rev DRAWN BY CHECK BY APPRO BY AUTO R902 2K2 ...

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

Page 43: ...Acer Service Manual 42 ...

Page 44: ...Acer Service Manual 43 ...

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