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Acer LCD MB243WABNS User's Manual

1. UJ P312 FB342 o D501 R505 C493 LJ E 5 O1 5 d 7 1 Q R541 i KS U FB345 C506
2. TP359 Q308 TP345 SOT 223 TP346 P308 BUSPWR R439 10K 5V AO3401 U5V FB328 0373 USB B gt gt USB_DET 1317 PBY201209T 170Y S TP348 D343 364 TP365 e 2 PN 3 3 vN vour 2 MM4148 R527 L301 18K 1 4 1 c449 R430 C450 C451 C452 ADJ GND TAB C453 C454 2 1 DNO TP369 AIC1117A 33PYTR zu 3 1 3 XT 1 DPO 8 TP371 A 220u 25V R490 10K 0 1u 0 1u 100u 10V 0 1u 22u 50V a A TP447 C459 C460 WCMH2012F2SF 900T04 UGND EH R491 47K R431 30K 2 461 GND 47K 5 1 NC NC 3 USB EN gt gt Q310 TP353 TP354 ad MMBT3906 U5V C3V3 UGND TU 5 1 4 O 1327 GND UGND UGND TP355 TP356 D334 3 TP448 VIN VOUT U5V U5V R434 47K Q307 1 1 ADXGND TAB MMBT3904 AIC1117A 33PYTR C490 SR 100u 10V USB2
3. QHVO8 SLNOAVT 29 091 H39OV vVV8 ON 89d 01
4. e mp GND Erm istes chamet 9 ND emote 7 Nc gt 5 Ec NC 7 Em Dea ine 2 ND DE V syrc for analog interface 5 9 RXI _ TMOS tirk 0 channel 1 dif rential pair 24 IMDSclockdf renlpar 10 TM ink 0 dme differential pair Aog Re sl Green Anak 13 INC NC arenes Analog 14 5 5V input fromhost system for DDC2B function CS Analog GND IND The following table shows pin assignments in the HDMI connector Pin Signal Assignment Pin Signal Assignment Pin Signal Assignment 1 T M D S Data 2 9 T M D S Data O 17 DDC CEC Ground 2 T M D S Data 2 Shield 10 T M D S Clock 18 5V Power 3 T M D S Data 2 11 T M D S Clock Shield 19 Hot Plug Detect 4 T M D S Data 1 12 T M D S Clock 5 T M D S Data 1 Shield 13 6 T M D S Data 1 14 Reserved N C on device 7 T M D S Data 0 I5 SEL T M D S Data 0 Shield 16 SDA 1 3 2 Video Input Signals Go to cover page 1 3 2 1 Video Signal Amplitudes The three video inputs consist of Red Green and Blue signals each with its own coaxial cable terminated at the monitor These video signals are analog levels where 0 V corresponds to black and 700 mV is the maximum signal amplitude for the r
5. Failure Point Green Blue Red signals are flow in the same path In the case the Red signal is example 1 Printed wire is broken between D Sub R and 1314 pin45 Check the R G B signals on 1314 pin40 pin42 and pin45 which should have voltage level at 0 7Vpp ids 2 R391 is short 3 C356 is open 4 R390 is open OK Failure Point ma e iis NG 1 The 1314 is defected 2 Printed wire is broken between 1314 and P306 output correct signals OK Proceed to 5 8 Checking the resolution change IC movement section ACER G24 5 Troubleshooting continued to cover page 5 5 Abnormal OSM display OSD Adjusment Problem Check the input TTL level whether if it was altered upon pressing the function keys OK Proceed to 5 4 Abnormal Section Failure Point Printed wire is broken between P303 pin 2 and 06 pin 87 Printed wire is broken between P303 pin 3 and 1306 pin 88 Printed wire is broken between P303 pin 4 and 1306 89 Printed wire is broken between P303 pin 5 and 1306 90 Printed wire is broken between P303 pin 6 and 1306 pin 22 Printed wire is broken between P303 pin 7 and 1306 pin 1 C325 C326 C327 C328 C329 C330 is short R339 R340 R341 R342 R343 R346 R347 R348 R349 R350 R351 R352 is short or open 1306 is defected Note more than on
6. 8440004216 9 1 WIRING TES 250x2 55mm 9 1 USERS MANUAL 0 1 773020xxxxP0A screen protect 09 2 7 70 0 Q3 1 VY4900PIGOPOB EPE beg remark if the BOM for Japan 7749600770 0 7749600200 must be changed to 7749600680 3 Exploded Diagram continued ACER G24 Go to cover page 3 2 Product Exploded Diagram 2 On On On Opn On On On On On OF CK ID CK ID Part
7. 1 em UJ CO Ww R548 0 KO e F LAS eo sr 535 Chi t bi w C523 z NES 0329 5 F7 dE TP534 C524 o C538 SC dui qu gt NU R555 C536 OO 5 509 _ m m R309 R307 BEEN C309 G AADS o owon s _ UOL ERN Ww OO Do EN QJ w W n NENNEN e L P311 m e C525 C526 O Cj L Ww R383 D323 c XE a 0 ue m O FB318 amp 4FB316 FB317 C310 an o 9 12 dii 7 2 Wo cl e D315 Qn L N oJ llo 5 FB343 E WW UJ Do o5 0264 Qo 100 _ l wo 8397 R529 E L L N 8395 8399 R394 a R528 qp E a gt C363 5 o Eo L R403 cy oF _ 8404 o E R T TIL 1 L 5 5 93 8 L3 R406 e EH m FB321 FB322 2 T MA R413 FB315FB313 FB319 FB320 FB314 FB323 i L 8407 _1_ R408 C416 0331 MEN 8411 371 8409 256 240 230 220 210 200 D329 250 2326 360 332 _l Q R R4 x e p 2 N D C ps Ww v E P amp R365 C342 Deos 8401 D333R4 4 C340 2 9308 6330 R377 2 2 9310819 R379 C354 R387
8. I P191 PBY201209T 300Y S 3 1V8 FB314 AVDD_APLL P192 10 11 12 13 3V3D FB315 AVDD_MPLL 3V3D FB316 AVDDPLL2 PBY201209T 300Y S P193 PBY201209T 300Y S 9 194 29 C365 C367 C369 C371 C373 MAAS SASS SSS 22u 50V 0 1u 22u 50V 0 1u 22u 50V 0 1u 22u 50V 0 1u A GND GND GND GND 3V3D FB317 AVDD_MCLK 3V3D FB318 AVDD_LPLL 1V8 FB337 AVDD18 DVI 1V8 FB338 AVDD18 ADC PBY201209T 300Y S Cr P195 PBY201209T 300Y S 9 7 P196 PBY201209T 300Y S 9 y P197 PBY201209T 300Y S 7j P198 C375 C379 C381 AVDD LPLL 0 1u AVDD APLL 22u 50V 0 1u 22u 50V 0 1u AVDDPLL2O AVDD18 DVI AVDD MCLK AVDD MPLL QAVDD18 ADC AVDD PLLO SAVDD_ADC AVDD DVI VDDC VDDM VDDP O Q Q Q GND GND LVBOM LVBOP 3V3D FB319 AVDD_DVI 3V3D FB320 AVDD_PLL i BUM S Gee eq Deme fp pie jp PBY201209T 300Y S y P199 2 TP201 gt 2 o AA ss ge SET Er GIOI GI N N RC Sj Qd S SI SI LN ON 524 C382 B s 4449 44 5 8 99 zz 555555 ped aa a n a A o aa 4 4 22u 50V X302 6 22 A 2 AA a 4 LVB1M 14 318MHz aq S 25 22 LVB1P lt 22 LVB2M xcu a LVB2P GND C389 O LVBCKM 22p TP203 09 LVBCKP 1V8 FB321 VDDC GND 202 Ds 08 LVB3M MeL LVB3P 5 HP DET lt UT DET HDMI R40 199 gt DDC HPD E C397 m uer TIN SEL DDC
9. pin 1 switch UART I2c f Pull all Pin High SPI Setting USE Label gt Elapsed Time Printer 19KHz S2 Press Connect button MStar ISP Utility Winbond test 0315 Mstar semicouduauctear Elapsed Time I2C Printer 19 2 There sa Dialog window shown on the screen It is the meaning of connection successful Check the video cable and ISP board D sub to Printer port between LCD monitor to PC hostto see if it disconnected ACER 224 4 to cover page Press Device button to select the WP pin pull to high during ISP MStar ISP Utility Winbond test 0315 OU Config Connect Dis Con Iv Fin pull to high during ISP SST25VF512 SOENE E Status Register seting SST25VF020 Unknow g g SST25VF040A 2 SST25vF040B fe Previous in Flash New Setting Below SST25VF080B Device Size Status Register SST25VF016B Pm251 v512 A Pm251 v010 A Pm25LV020 Bit 6 b 4 3 2 1 Bp Register Setting Value 00 Elapsed Time IAE Printer 19KHz 3 3 Press Read button MStar ISP Utility Winbond test 0315 EB s Config Connect Dis Con PEER 5 WP Pin pull to high during ISP SST25 F512 5 Manufacture AE ML NE Status Register setting SST25vrF 20 Unknow SST25VF040A we SST25VF040B Previous in Flash 27 New Setting Below SST25VF08
10. 13 13 ACERG24 E M4 Go to cover page 89d LH 01 L C119 LOONO G m VN3 WMd QN9 F101 TI 8 2 T101 d B C102 R133 _ _ _ _ S LJ R122 C103 9 4 ci2aL TL 0115 1225 ae nes R117 121 R121A 711 0101 ro 1019 quvoa H3lH3ANI SLNOAVT 72D 001 YHAOV 9r8 N G 2 wo N T102 S S N i C135 T105 S C121 T105 2 S 9 EN T106 T107 wN T110 152 T108 5 8610 H 223 oe R161 147 gt gt CR111 20 E SSS amp N E 1111 y 154 90LNO Zi LL OL 61 01 LAREO 09
11. Jm pa Jes Jum sa 4 6 baa 1 e fes psi m ju je 8 a pe e pur unes pem iR uri jene uu MT Eme po em pem quxem O feaa _ pum hs rs 9 A PUTO JALTO AUTO ASAS UTO Aster AUTO Regati ACER 24 Go to cover page 3 1 Packing Exploded Diagram 3 Exploded Diagram USER S umm USERS POWER CABLE PE SIGNAL CABLE SSD ovi CABLE PART NO REMARK 1 774920xxxxP0A errr 8340008264 911 0 1 vv49003260POA 8340005421 LCD MONITOR 1 7 49001280 0 BAG 8440004238 SIGNAL CABLE jo002 7749600850P04 914 2 jo o15 v749600200POA
12. l ACER G24 Go to cover page 2 Writing VGA DVI Process Chose the folder Acer VGA amp DVI then double click Select the Acer M1 amp M3 XPEDID DVI exe to execute it m TATT Acer vis AL I lx Jma Acer HDMI n J Pitva LITE Acer MIASMK XPEDID DY ese Ed3 cfg ni m Model det Ca Pat efg Vado on YXD 244 ty tel 444 3 Select Model Key in password cedid then select model which one you want to write EDID code that it depends on panel type Check C Butter 13 Model MM Woe DN Reed R ET 0 Quit 2 Both Edid For LITA19 B19 1 02 MODEL P243WN SS NO 9081001107 0A Date 05 14 2008 LIMON THOT OORP ID WEEK 20 Enter Password Enter the password to change the model Change Model Manufacturer Model Cancel ACER 224 to cover page 4 Choose WRITE from menu then select Scan S N And Write EDID And Test DDC IT TET Check C butter Model MM Reet 1 Setting Qua Both Edid For LITA19 B19 1 02 MODEL P243WN SS 9081001107 0A LITON THAT CORP ID NO Date 05 14 2008 WEEK 20 5 Key in series number 22 characters in the input column Press write button after key in S N SCAN S N WRITE EDID DATA WITH TEST DDC Model P243WN SS NO 9081001107 0A Write Key IN I
13. 6LOIR 7131230061P0A SCREW TRIANGLE FLAT WASHER PAN M3 6 ZN 1 Ve40 68142400301P0A LCD 284W 1 240 703 34000 6876010100 00 ALUMINU 129 7 08 01 7737 718900 BASE Cover ASSY 1 8CO1A 7740412900P0A Bose Cover 1 8COIB 7740412910P0A Bose L 8COIC 7740412920P0A Base R 1 08C02 7140340101P0A SCREW M4 10 Base amp Base Plate 0 8 08C03 7742006210P0A RUBBER A lt 15 15 0 gt 2 9 08C04 7742006220P0A RUBBER B 30 12 3 0MM e 10 08C05 7110160104P0A Base Screw 11 08C06 7748714780P0A Base Plate 5 6 12 08C07 7742614240P0A 13 08C08 7742614250P0A Arm R C 1 14 08C09 7738001340 0 Hinge 1 19 08C10 7748714770P0A Base lock Plate 08C11 7140330101P0A SCREW M3 10 ARM F C R C 4 08 12 7140340141P0A SCREW M4 14 Hinge amp Arm R C 6 08C13 7140340101P0A SCREW WASHER FLAT HEAD 1 ACER G24 Go to cover page 4 1 Assembly procedures 51 52 53 Connect the cable between power board P802 and interface board P301 54 Connect the function key cable into interface board P303 Connect the cable between power board P803 and inverter board Cn001 Connect the FFC cable into interface board 55 Take a bracket chassis base a protective cushion and stick an insulator on the specific position take a power board and turn it over Then put it on the specific positions of bracket chassis base 56 Use Phillips head scre
14. ACER LCD G24 5 080519 1 Model ID MB243WABNS Table of Contents Important Salety aa 01 DI PIOdHCLODSCHIC geet e cane oues ecce 02 02 QSD MENU dee eee 08 04 Assembly and Disassembly Procedures 1 2 05 Troubleshoot 06 Frimware Upgrade Procedu O Writing EDD e E ceana L aroe Appendix I User s Manual Appendix II Quick Setup Guide Appendix Il Spare Parts List Appendix IV Software Pack Safety Notice Any person attempting to service this chassis must familarize with the chassis and be aware of the necessary safety precautions to be used when serving electronic equipment containing high voltage Published by LITE ON Service Printed in Taiwan All rights reserved Subject to modification 19th May 2008 76 EL RES LITE Important Safety Notice ACER G24 to cover page Product Anouncement This product is certificated to meet RoHS Directive and Using Lead Free solder to well mounted the parts Lead Free produced definition Using approved critical The fusion point of Lead Free solder requested in the components only is recommended when the situation degree of 220 C to replace defective parts Vender assumes no liability express or implied arising out of any u
15. ND aS p R400 4 7K Oca gt gt DET 3 P GND v3 ds 3V3 TP189 3 lt i R383 e 4 7K 95 DVI D 5VO GND GND DVI GND 47K TP148 D316 t en BAV99 nn r TP454 gt TP190 D DVI RX2 TP451 e 2 R401 100 HP DET DVI 3 C486 Q323 O 1u GND GND GND 5V o D340 XMM4148 TP485 5V_EDID 5V_HDMI D342 MM4148 C495 1u ppc sec p Co d D R531 100R DDC SDA D LA d R530 100R c498 c499 241 2 2 GND LO N oD 27 27 Fo QY gt oO a ez 3V3 GND gt 5V_HDMI R555 eq A7K lt R534 e 7 P486 Sa 1K TPA87 E Bs n em R437 100 HPD AE Tone lt HP_DET_HDMI 6 TSV 329 CEC DDC GND Q DDC SCL 1325 2021 PCA9515ADP DDC SDA HPD CEC Dat2 shield Dat1 shield DatO shield clk shield DATO DATO DAT1 DAT 1 DAT2 DAT2 clk GND1 GND2 HDMI CONNECTOR GND GND GNDA DVI 2 DVI RX2 HPD 1 DDc SDA D SCIL D HDMI_RXC HDMI_RXC HDMI RXO HDMI_RXO HDMI RX1 HDMI RX1 HDMI_RX2 HDMI RX2 P S GND GNDA must be connected 1 2 3 HOTPLUG DET OUT DDC DAT OUT DDC CLK OUT CEC OUT TMDS CLK O p ccc TMDS_CLK O ESD_BYP lt NCO9 IN O1 HOTPLUG DET IN DDC DAT IN DDC CE TMDS TMDS_GND4 TMDS_CLK TMDS_DO TMDS GND3 TM
16. 519 523 side of LCD monitor and another is held the below side ial ree RS CETT ST acm d Stick a screen card on the front bezel with two S20 tapes Put accessories of stand DVI cable and 524 user s manual power cable on specific positions as photo below Stick Vista and TC003 label on the correct o2 position the same as below photo Move previous assembled parts into the carton then 525 stick Vista and feature label on the carton then packing the carton Take a LDPE EPE bag to cover the LCD 522 monitor ACER G24 4 Assembly and Disassembly Procedures continued 4 Go to cover page 4 2 Disassembly procedures Open the carton with a proper tool o4 o1 Take out all accessories including D SUB cable 52 power cable DVI cables user s manual and packing material from the carton Note It depends on whether users returning the accessories 55 Take off two cushion foams 53 S6 Put returned unit on a protective cushion then remove LDPE EPE bag Tear off tapes to remove the screen protector card then turn over the LCD monitor screen faced down Disassemble the stand cover Use a Phillips head screwdriver unscrew 4 screws to release the stand base No1 4 Screw Size M4x10 Torque 13 1KGFxCM 4 Assembly and Disassembly Procedures continued ACER G24 Go to cover page Hold the one upside corner of the front bezel af
17. 800 x 600 46 875 7 1024 768 48 363 am 1024 x 768 60 023 E 1280x 1024 63 981 1200 is automatically expanded to fill the entire Screen 1 3 5 3 Panel Timing and Interface 10 1280x 1024 79 976 11 1440 900 55 469 59 01 The controller supplied with the monitor shall 12 id E control all panel timing This controller shall 4s 60 Is 1280 x 39 702 60 16 1280 x 00 62795 75 b so that no possible combination of input signals POE F ceia rom the computer shall cause damage to the fla adequately insulate the monitor from the computer 5 75 75 75 75 75 i 1280 x 720 45 5 EN 12 n 15 16 18 22 22 panel or any other component of the monitor The NOTE 1 76 FV 86 monitor can display but doesn t guarantee LCD panel interface shall support the TFT actory model After we first burn the code into the flash every preset model we run first must do auto adjusting Then it ll 22 again when we e DC standard The only way that preset mode do auto adjust again is press Internal Factory Reset 4 User mode The code should memorize 9 timing mode exclusive of preset modes as use mode and do auto adjusting 1 43 6 DC AC Inverter Requirements When user set a new mode that is not among previously It ll do auto adjusting then be solved to u
18. C493 C301 C302 C304 C305 C306 C307 TP460 0 1u 0 1u 0 1u 0 1u 0 1u 0 1u 0 1u Q325 R565 10K R502 MMBT3904 PS O 3V3 10K TP455 TP542 543 458 459 2 gt POWER R503 e R567 100 47K m SOT 223 OFF 3 BKLT EN 3 1301 17 0314 JN _ MMBT3904 C C312 ADOND TAE 6313 GND 220u 25V AIC1117A 33PYTR 100u 10V GND TP545 FOR POWER SAVING CONTROL 5VD SOT 223 5VD TO 252 GOI 2V5 VDDM 5V 1316 FDS4435 544 1326 1303 EN NN ADJ GND TAB ADJ GND TAB D AIC1117A 33PYTR 100u 10V GND GND 428 5VD TO 263 TO 263 Q331 22 E 3 OFF gt MMBT3904 M VU PEE ADJ GND TAB dd ADJ GND SEES GND AIC1084 33PMTR 100u 10V AIC1084 18PMTR 100u 10V TP14 Q302 TP15 TP16 AO3401 e PBY201209T 300Y S GND GND VOCHEODT s a GU Lene VCC FOD2 3V3 FB303 C308 R307 C309 C310 C311 R308 220u 25V 10K 0 1u 0 1u 0 1u 100K GND R488 R309 30K TP18 446 R489 47K A7K GND 3 LCD_EN gt Q309 D301 MMBT3906 MM4148 LJ TP20 G TP445 R310 Q301 MMBT3904 10 11 12 13 10 11 12 13 No 6832194600P0 24 M4 Go to cover page 8 4 ACER LCD G24 SCHEMATICS INTERFACE BD MCU AND FUNCTION KEY C320 O 1u 24 O 1u T
19. GNDA GNDA BLUE 0 047 1 3904 ATK R497 O O CONNECTOR DB15 BAV99 D314 5 R385 FB307 C341 10 155 TP154 TP126 TP125 75 1 E NC R386 C342 e a 0 047u TP452 TP453 45V EDID GNDA 7 BINOM 6 MM4148 D302 GND 0 1u C343 47 TP444 TP443 5V VGA E GNDA E R486 C489 MM4148 D307 1000 TP458 i gt gt 3066 C337 TP159 470 TP157 TP156 E e 1u GREEN x pits je E MM GINOP 6 4 7K BAV99 0324 _ 5V R388 FB309 C353 10 TP162 TP161 9 75 1 E NC ESSA C354 5 DDC WP lt lt F GNDA 0 047u Doung DSUB SDA 0 1u C355 47 GNDA cn cn C339 C338 166 164 163 co C TP165 OR R390 C356 N ne co o RED 9 047 gt gt RINOP 6 Z0 o BAV99 D325 R391 FB311 C357 10 169 TP168 G 75 1 C E G NC R392 C358 GND GNDA 0 047u Ms mined 0 1 C359 47 GNDA No 6832194600P0 8 6 ACER LCD G24 SCHEMATICS INTERFACE BD HDMI AND DVI INPUT 1 2 3 P305 A DDC SCL D1 5V_EDID es DDC SDA D1 D326 MM4148 5V_DVI 2 2 NE DVI RX1 ea ea DVI RX1 i i C362 ed e gt co c2 2 D em oS R394 R395 EX EE 2 ac 2 du ME i 5V DVI 415 GND GND GND GND GND R398 1K ee Pas T T DVI_RXO 4 DDC WP lt lt DDC SCL D1 R397 100 20 DDC SDA D1 R399 100 KO KO 2 DVI_RXC en B eee DVI_RXG C363 C364 e Lc 47 47
20. WEEN Hc 52 MB EE ER SDA2 R319 OR DVI SDA 5 GND SELECT R523 R325 100 ISP SE Bon S eee DVI P P501 AO MADO 5 SDA TXD R467 Bo 52 AUT e SDA e TP502 R321 A1 4 MAD1 PTP55 R524 R327 100 VGA_SCL sv P503 4 7K A2 MAD2 P56 6 INT lt lt P3 2 INTO P6 4 SCL1 Ce POWER G MAD3 P59 P3 3 INT1 EA E MSCL ES SEX AA 8 MAD4 MSDA e E gt 6 5 _ PSTPo2 TP67 WE R328 5 TP57 A6 MAD6 P64 C P3 6 WR ALE E 6 PSEN P6O P58 AT MAD7 P66 NC PSTN z A NC P2 7 A15 TP63 467 AQ Ne P2 6 A14 Bg 13 PIP65 A10 NC P2 5 A13 5 ole NC P2 4 A12 FUE A13 A14 iis A15 WE A16 PSEN 18 NC NG W39L040AP70zZ 3V3 VDD 3V3 VDD 2 76 6 RD lt lt R329 R330 R331 R332 R335 10K 10K 10K 10K 1308 4 7K d TC7SUOAFU 3V3_VDD 4 1 4 gt gt DVI HDMI SW 5 c AUDIO DET 2 P302 O O O O JWT A2001WV2 4 AM Em T OFF 2 TP85 TP86 TP87 TP88 O 3V3_VDD lt ADO 6 3V3_VDD o e R339 R340 TP6O1 5V 5V 10K 10K TP90 TP91 TP92 TP93 TP94 C C ES LED BLUE LED_AMBER_ amp 5 TPIT ED POWER R346 1K POWER 7 lt R512 R513 4 Up eae 2 TP99 DOWN 24411 Rode IK 5 4 7K NC 4 7K NC TP103 ELEC Eos HF TP103 LECT _ EN
21. below The conditions of visual inspections are as follows For 24W Series B Viewing distance is to be approximately 35 50cm E Ambient illumination is to be 300 to 700 lux B Viewing angle shall be at 90 degree B Defects not apparent within one minute shall be ignored 1 4 5 5 Defect Terminology Table 3 gives the descriptive terms used in classifying defects Spots or lines that appear dark in the display patterns and are usually the result of contam ination Defects do not vary in size or intensity contrast w hen contrast voltage is varied Contrast variation can be achieved through the use of varying gray shade patterns Dark Spots Lines Spots or lines that appear light in the display patterns Defects do not vary in size or intensity contrast when contrast voltage is varied Contrast variation can be achieved through the use of varying gray shade patterns Bright Spots Lines W hen the unit lights lines appear light white with display patterns dark and do not vary in size Physical damage to the polarizer that does not damage the glass W hen the unit lights spots appear light white with display patterns dark and do not vary in size Physical damage to the polarizer that does not damage the glass Horizontal or diagonal lines that appear gray with the display patterns dark and may have resulted from an out of control rubbing process on the polyimide or waves on the BEFs or prism sheets New
22. c du c Lp re pue c ced me um oe pea 5 C330 SND 4 1 O 1u O 1u O 1u O 1u O 1u O 1u GND GND GND GND GND GND DVI_SDA_3V DVI_SCL_3V GND R514 R515 4 7K NC 4 7K NC lt gt VGA_SDA 4 VGA SDA 3V VGA SCL 3V 10 11 12 13 No 6832194600P0 ACERG24 38 4 Go to cover page ACER G24 EJ 8 5 ACER LCD G24 SCHEMATICS INTERFACE INPUT 4 Go to cover page 1 2 3 4 5 6 7 8 9 10 11 12 13 SBK201209T 431Y S V 1 R eque E a SES VSYNCO 6 D FB306 TP132 C335 R370 3V3 A LE TP127 C334 A Sa 27 O C361 741 14 74LVC14 x i5 GND GND GND GND TP130 GND SBK201209T 431Y S HSYNC R362 100 R363 GND HSYNCO 6 7ALVC14 O e FB305 DSUB 4 5 336 R371 74LVC14 120 B Connector TP124 D 22K TP118 C333 B e 27 eo NC 74LVC14 e TP136P138 GND GND TP123 TP13IP136 GND GND DUO DUO as 0 R374 DSUB SCL 3 7 DSUB SDA 44 4 7K R376 C 43 TP142 gt gt DSUB DET 3 R380 R378 C Z i i E lA VGA RX TP146 e 3V3 E VGA TX TP141 ag TP140 TP139 Y 3 D2 NO 410 x VGA TX NC 381 lt VGA SDA 3 lg 45V 134 gt VGA RX NC 3382 R492 R493 1 gt gt VGA SCL 3 TP449 10K 47K GNDA E D TP152 TP151 TP150 TP149 D C ES Q312 ATK R365 OR C340 Q305 MMBT3906 CWP_EN 3
23. gt pari USBDN3 DP nes D SCL SMBCLK CFG SELO 22 Le vs 100K HS IND CFG SEL1 T USBDNS3 DM TP382 FB331 TP383 FB332 id TP394 OVR4 190 18 x 1 2 1 2 RESET Common R571 R572 R573 OCS3 Q PRTPWR3 e 7 Q 554 b _ RES PBY201209T 170Y S PBY201209T 170Y S C468 RBIA 100K 100K NC R446 C464 R447 C466 R574 zum C465 ZZ C467 0 1u 10K 100uF 10V Odu 10K 100uF 10 01u NC C UGND UGND UGND UGND OVR2 7 86 l OVR3 387 28 OCAL PWR NON REMO SUSP IND N Downstream 4 E IND FB336 9 DP5 R448 UGND UGND UGND UGND TP514 UGND USBDN4 DP R450 23 E R569 VDD33 IO t T y onus Ls DN5 15K 11 5 __ 201209 170 5 P416 USBDN4 DM 15K TOOR nS 216 Goss PRTPWR4 20 es C533 C534 NM EA Q UGND GE 0 1u 0 1u UGND UGND VDDA33 e531 pesar gt 33 XTAL1 CLKIN VDDA33 56 ae DNE U3V3 P309 VDDPLLREF VDDA33 p TP392 TP393 USB A DUAL ed d C546 C547 C548 C549 C550 EEPROM Config L304 22 WCMH2012F2SF 900T04 VBUS2 1 X303 2 R575 1u 0 1u 0 1u 0 1u 0 1u R456 MBDATAMION BEMI TP396 DN2 4 xum 1 2 SCL SMBCLK CFG SELO TES DPS 4 1 DM HS IND CFG SEL1 25 O T T 3 sammo2 2 3 pp 24MHz 1M T pas 1906 E TP385 gt R445 1 44 O52 U3V3 TP398 gt R449 VBUS3 5 ONP UGND 263 RESET Common R457 100K TP400
24. n gt 52v X 21 6 52v c 5 52V Pd 4 GND VBUS1 2208 100 5 GND gt p dB 1 R874 25 R879 100K 2W C843 oi 4700P KV FCH30A10 R1206 P6KE150A mds d R844 0 510K L803 R1206 D816 FCH30A10 SEM E R877 0814 BEAD 6mm C836 Q803 L805 1000U25V 1000U 25 10000 25 1000U 25V R845 7N65C 1N4148 22 e 510K R1206 1803 C846 R75A R0805 6 100 C812 2200 250V C830 lt 0 VA Rede X7R ES T 1N4937 G 100 102P 0805 1N4148 R0805 R853 VAUX VIN SENSE 100 c85 0 1U 1206 em RO805 C833 78 R851 R850 47U 50V 5558417 C C832 C834 10K 0 33 2W R847 470P 0805 47U 0V R1206 2 0805 E X7R R0805 Ux HS iu KN2222A v T O VAUX 1804 220 LTV817 RO805 R857 1K R842 22B 1K RO805 R854 22K v C840 R60A Q806 2200P 0805 4 R860 X7R BUS 270 G R1206 1807 LTV817 R858 R859 10K R0805 R1206 FR 1 2 3 4 5 6 7 8 9 10 11 12 13 6832194100 01 8 3 ACER LCD G24 SCHEMATICS INTERFACE BD POWER 5V TP470 TP4 TP5 TP7 TP8 3V3 R500 e R302 5 6K NC 10K NC R303 100 NC 142 R304 100 NC TP AUDIO_DET 3 456 TP457 Lh y Ss R305 100 a 7 501 __ R306 100 lt BKLT_ADJ 6 47K NC O R496 100 X AUDIO TP13 FB301 PBY201209T 170Y S Q313 FB302 PBY201209T 170Y S ET O VCC LCD1 O 5V GND MMBT3904 R504 10K 5V B O 5V 5
25. to cover page 5 11 HDMI signal check 5 11 1 No video eck the TMDS sign NG from computer input on HDMI connector Failure Point p 1 Check the host PC to see if there s no TMDS signal output 2 HDMI cabled disconnected Reconnect the cable till firmly connected 3 P311 is disconnected Reconnect the cable till firmly connected Failure Point OK NG Y Failure Point 1314 was damaged 1322 was damaged 6 Firmware Upgrade Process Hardware Configuration PC HOST i Mstar ISP Utility Configuration Launch the utility of ISP Tool Winbond 0315 exe MStar ISP Utility Winbond test 0315 BE Ej ze Connect Dis Con Mstar semicouduauctear Elapsed Time 12 Printer 19KHz Press Config button MStar ISP Utility Winbond test 0315 B P Restore Config Connect Dis Con 41 Elapsed Time 12 Printer 19 2 ACER G24 Go to cover page Select AUTO DETECT button that will automatically detect the device then shows OK on the right side MStar ISP Utility Winbond test 0315 1 11 4 ore B P V Rest I2 Pin Definition SbA in SCL in C SDA out SCL out PIN Reverse High JIG Apply E2PROM Device Setting MH H Roughly Speed 19 KHz Communication Setting Speed 7 Port Type Base Adar 0x03BC
26. 1 2170 4 LVACKP MDATA 22 21806 LVACKM MDATA 23 TP219 MDATA 24 TP220 AUMCK MDATA 25 TP222 a d M MDATA 26 a 1 E eris MDATA29 9 AUSD 4 AUSD GPIO 6 MDATA 29 MDATA30 D MUTE lt SPDIFO GPIO 7 MDATA 30 TP224 AUMUTE GPIO 8 MDATA 31 TP225 AUPWM GPIO 9 TP226 DOMIO 7452 gt _ lt EMO 7 DOMI isa 5 gt lt 50 1 7 TIERE DOS O 4368 DQSi DSO 7 104 gt lt 098 7 bud 2052 5 lt 00527 I GPIO 2 DOS 3 V Dos T TP231 TP232 3 HWRESET gt R411 Ier m 5536 HWRESET WEZ SWE 7 233 04 8 CASZ CAS 7 23466 LVBOM 28 S AVDD_DVI O R412 390 1 755521 RExT EARS RAS T VDDM 30 5 C417 0 1u 6 s 10K NO 0 1u NO REFP eoru R414 C418 0 1u TP238 C419 0 1u 6 ve 1 1 1P239 REFM B MCLKE CKE 7 1 FPC FFC 30S 100C C420 ou e 4 z MVREF MVREF 7 7 RMID 9 GND GND C P240 GND x Busan a R415 C421 C422 1K 1 O 1u 0 01u G gt gt gt AR 0 11 7 GND 10 11 12 13 No 6832194600P0 C406 1 C415 0 14 24 EN 4 Go to cover page 8 8 ACER LCD G24 SCHEMATICS INTERFACE BD SDRAM TAV VM FB325 PBY201209T 300Y S C425 B 10uF FB326 PBY201209T 300Y S C434 10uF 2
27. 1000P 0603 0603 LX1 1000P 54K LX2 GND VA VB 220UF B5V LDR1 HDR2 O AP9985GM C120 R134 T102 10P BKV C103 1u50V 0603 1206 R101 LDR1 enp 4 0121 BAT54 OZ9982 C105 Lx1 47 0805 R108 0603 DRV1 open DRV2 R109 open osos Cris 1X2 BAT54 47u R114 0603 os mos iq 2 open LDR2 Q 100K 1 R116 R117 CN101 CN103 151 D109 D110 BAT54A 153 BAT54A VA 6 VB E T105 OIS 10K 10K Q102 e 2 2N3906 5 1 1N4148 100K 1 100K 1 PE R125 C134 C135 54V THES Teddy R126 R127 10P BKV 10P BKV 10P BKV 2 10n peu 154 D117 D118 BAT54A 152 BAT54A a F C137 C138 C139 T107 R151 T108 R152 R153 OKY 10PBKV 490K 1 CN104 CN106 33K 33K VA VB T110 T111 O Z lt o eX c N 100K 1 100K 1 C152 10P BKV VS4 C153 10P BKV 10P BKV Es 400K 4 VA HDR1 Q 0603 HDR2 13 51 1 D107 3 BAV7O VS2 2 3 VS3 1 D112 3 BAV7O VS4 2 VS5 O D114 BAV7O VS6 O VS7 0120 BAV7O VS8 VS9 D108 BAV7O VS10 gt vsi1 D113 BAV7O VS12 R118 IS5 IS9 D111 IS7 i BAT54A 1S11 C 10K R128 e D119 156 BAT54A 1510 2 a 33K 24 EN 4 Go to cover page ACERG24 ES 8 12 ACER LCD 524 SCHEMATICS FUNCTION KEY M4 Go to cove
28. 3 4 5 6 2V5_DMC 254 C426 C427 C428 C429 C430 C431 C432 C433 0 1u GND R416 2V5 1K NC 257 D 6 mver N B C435 C436 C437 C438 C439 C441 C442 R418 0 1u 1K NC 2V5 6 MCLK 6 MCLK C443 C444 C445 C446 0 1u 0 1u 0 1u 0 1u 6 RAS 6 CAS 6 SWE N 6 CKE 6 DQMO 6 DQM1 DQS1 DQS3 DQSO DQS2 TP335 TP337 TP339 TP341 TP343 1 TP332 TP334 TP336 TP338 TP340 TP342 TP344 TP258 e C447 C448 R419 0 1u 0 01u NC GND GND T N GND R420 150 1 TP260 M 22 d 4 261 2 262 R421 22 N RAS M AS Oo 1 12 CKE N12 o o TP273 TP274 TP275 TP276 DQMO R422 22 DM3 B 255 256 NC RFU NC RFU NC NC NC EM6A9320BI 10 MDATA 15 MDATA 14 MDATA 13 MDATA 12 MDATA 11 MDATA MDATA 4 MDATA 3 MDATA 2 MDATA 1 MDATA 0 MDATA 22 MDATA 21 MDATA 20 MDATA 19 MDATA 17 MDATA 16 L 2 s gt CO i J m uU N s 0 Z O 11 O 2V5_DMQ O 2V5_DMC 11 MDATA_O MDATA 1 MDATA 2 MDATA 3 MDATA 4 MDATA 5 MDATA 6 MDATA 7 MDATA 8 MDATA 9 MDATA 10 MDATA 11 MDATA 12 MDATA 13 MDATA 14 MDATA 15 MDATA 16 MDATA 17 MDATA 18 MDATA 19 MDATA 20 MDATA 21 MDATA 22 MDATA 23 MDATA 24 MDATA 25 MD
29. Description 1 OSF 01 7737515757 F C 557 1 O6F 7742238754P0A F C O6F B1 42807981P0A Key Button 1 O6F 7742302900 0 Led Lens O6F D1 7742613831 0 Side Cover L 1 O6F 7742613841P0A Side Cover R O6F 7742404901 0 Acer Logo e 06801 7737612052P0A R C ASS Y O6BA1 7742238852 0 R CCDVI VGA 1 7749600900P0A TAPE 3 06L 01 7737811301P0A Bracket ASSY Shield Cover 1 O6LA 7748713871P0A Bracket Shield Cover SGCCO ST O6F 7746504810P0B nsulator 158 138 6 8 O6F C1 748000710P0A GROUND GOLD 42 15 5 4 O6F D 746505620P0A BUSHING BRACKET 10x10 6 8mm 1 O6FE 7742004960P0A SPONGE ETAL EMI 500 10 10 O6FF1 7748000301P0A GROUND GOLD 1 O6F G1 746505850P0A INSULATOR 170 15 0 25 O6F 77476403560P0A EAT SINK O6F Il 7110330062P0A SCREW M3 6 e 4 6L01A 7742617161P0A nge Cover L 9 6LO1B 7742617171P0A nge Cover R 1 6LO1C 7110330062P0A SCRE ACHINE FLA EAD M3 3 NI 4 6101 7110730082P0A SCREW MACHINE MONE EX WASHER M3 8 4 6LO1E 7110340101P0B SCRE ACH MONE FLAT M4X10 ZINE 4 6LOIF 7140330103P0A SCREW DOUBLE READ FLAT M3_10L BLACK e 6LO1G 7111230061P0A SCRE ACH FLAT WASHER PAN M3X6 ZN 12 6L 01H 7116240081P0A SCREW MACH START WASHER PAN M4 8 ZN 1 61011 7140440083P0A SCREW DOUBLE THREAD BINDING HEAD M4 8L 6L 01 J 7111230031P0A SCREW MECHINE WASHER PAN M3 3 4 6 GLO 7748713890P0A BRACKET INVERTER SHIELD OOVER SGCC 0 8T 6LO1P 7110330052P0A SCREW MACHINE FLAT HEAD M3 5 NI e 6L01Q 7746505810P0A INSULATOR 935 160 0 25
30. First Printer 19KHz ERES Connect Dis Con Blank Message Blanking Blank OK Program Message Programming ReConnect Read File E is 5 rogram OK Checksum OxAS3F1 Verify Message Verifying Iv Program Verify OK End time F4 03 36 31 Verify Erase Device Exit ISP File Area 7 Erase Area First 512 Partial Erase Elapsed Time 01 24 I2C Printer 19KHz Check firmware version Turn off the power then press force on POWER button at the same time then press on MENU button to enter factory mode Note Please pay attention Don t change any parameter which is measured by precise machine before shipping out Menu lt gt Auto Burnin Off RESET G243yg TSMD 55 HMDO 2 0423 When you writing F W face on interrupting that cause monitor shut down You can unplug AC power then press AUTO button and plug AC power at the same time to solve this problem then re write F W again 7 Writing EDID Process 1 Writing EDID Procedure Hardware Configuration 1 Connect the PRINTER PLUG of DDC FIXTURE with the printer port of Desktop PC Refer to figure 1 2 Plug USB A PLUG of DDC FIXTURE to USB socket of Desktop PC Refer to figure 2 3 Extend the DVI cable on DVI EXTENDING SOCKET of DDC FIXTURE Refer to figure 3 4 1 Connect the D sub plug of Chroma with
31. and output of FB301 5 Troubleshooting continued 5 10 Checking the inverter board circuit Does 22V output pin have voltage around 20V Does On Off pin have voltage over 3V Does brightness pin have voltage in the range of 0V 3 2V OK Check F101 1101 Q110 Q111 Q112 Q113 and repair them if be damaged Does 1101 pin6 have 5V output OK Does P101 P102 P103 Check 1101 and repair them if be damaged P104 be firmly connected OK Does 1101 pin4 pin5 Check CCFL and repair if damage have triangle pulse OK Does 1101 pin1 have soft Check 1101 and repair if damage start edge up to 2 4V OK Does 1101 pin8 have Repair 101 voltage up to 1 2V from output detection NG Does half bridge Q104 Check D102 D103 D107 D108 D1 14 D115 D112 D113 and repair if damage Q105 Q106 Q107 Q108 Nork successful OK Does transformer T101 T102 have output AC Check 0104 0105 0106 0107 0108 and repair them if damage voltage to P101 P102 P103 P104 OK Y Check panel module if damage NG NG NG NG NG OK NG NG Check T101 and T102 if damage ACER G24 Go to cover page ACER G24 5 Troubleshooting continued
32. conversion to supply the appropriate power to the whole board and LCD flat panel and transmitting LVDS signals into LCD flat panel module to drive the LCD display circuit The power board will support main power DCSV to interface board and the power DC5 3V to audio function power of interface board and drive the two CCFLs Cold Cathode Fluorescent Tube The interface board provides the power ON OFF control over the whole monitor and control for DPMS LED indicator to function key board 1 Product Specification MONITOR SPECIFICATIONS Analog H 30kHz 94kHz V 55Hz 76Hz 205MHz Max Pixel clock Video Input Analog 0 7Vp p Display Pixels 640 x 480 VGA 1920 x 1200 WUXGA Sync Signal Separate SYNC for TTL N or P Digital H 30kHz 94kHz V 55Hz 76Hz Video Input Analog 0 7Vp p E Impedance 750 Frequency Connector Audio Jack OPTIONAL Audio input 3 6F AC in 100V 240V active 90W power saving lt 2W m Empowering Auto Adjust Adjust Adjust Menu Power User s Control Front OSD Contrast Brightness Position Clock Phase Analog Digital RESET Color Language select etc 1 3 1 Interface Connectors 1 3 1 1 Power Connector and Cables The AC input shall have an IEC CEE 22 type male power receptacle for connection to mains power The power cord shall be with length of 1 8 0 005 meters 1 3 1 2 Video Signal Connectors and Cable The signal cable shall be 1
33. 0B Device Size Status Register SST25VF016B 251 V512 A E E E 251 010 251 v020 Register Setting Value 00 Elapsed Time 205 Printer 19K Hz 1 Press Read folder to browse firmware image 2 The position according to where the firmware be put MStar ISP Utility Winbond test 0315 i Device to B P V Restore Config C Documents and Settings kenlin 152431 BNS _HDAI_M002_ 20080423 5 File Status Start Addr 0000000 End Addr 0xFFFFFFFFFFF Hex files Unused Bytes 0x00 C OxFF Batch File Elapsed Time I2C Printer 19KHz MStar ISP Utility Winbond test 0315 4 B P V Resto File Status Start Addr 0000000 End Addr OxFFFFFFFFFFF Hex files Checksum Unused Bytes 0x00 C OxFF Batch File Elapsed Time I2C Press Auto button Printer 19 MStar ISP Utility Winbond test 0315 A ore Rest Mstar Elapsed Time I2C Printer 19 2 6 Firmware Upgrade Process continued Press Run button and waiting for firmware upgrade completed The screen will show PASS MStar ISP Utility Winbond test 0315 jt Connect Dis Con 7 20080423 XG243wwv ReConnect Iv Blank Read File Checksum Program 1 Werify Erase Device Exit ISP File Area i eee lt Erase Area
34. 512 GND EA 1 TP349 F302 TP350 UGND UGND 5V 0 75A 5V 0 75 VBUSA VBUS5 TP351 FB329 TP352 FB330 B U3V3 PBY201209T 170Y S PBY201209T 170Y S R432 C455 R433 C457 zz C456 zz C458 10K 100uF 10V 10K 100uF 10V 0 1u 1318 R440 1323 TP376 TP377 USB2512 USB2514 OVR4 O TP357 OVR5S TP358 R443 Upstream 10K Upstream 100K 34 DPO 34 DP UGND UGND UGND UGND BUSPWR 27 USBUP DP TP366 2514 DET R460 6 27 USBUP DP R435 R436 VBUS_DET VBUS DET USBUP DM P30 UsBUP DM O30 JEK C463 R444 1u 100K TP515 gt UGND UGND UGND UGND TP360 o P307 l Downstream 1 Downstream 1 5 L302 ji VBUS4 VBUSS 20 2 USBDN1 DP 2 m USBDN1 DP 2 mE Ip 4 ze H DD2M 39 3 TP363 DP4 3 2 DD2P DN1 DN2 M GND 547 USBDN1 DM USBDN1 DM TP367 T t OVR2 4 Q C x 130 ocs1e PRTPWR1 12 cV 134 PRTPWR4 12 L303 VBUS5S 29 8d TP370 DN5 CX33 DD1M TP373 8 DP5 4 T DD1P 109 9 2 GND 149 10 WCMH2012F2SF 900T04 T 125 ji d JWT A2008WRO 12P Downstream 2 Downstream 2 C462 0 1u USBDN2 pP 4 22 USBDN2 pP 4 DPS USBDN2 DM 2 ES USBDN2 DM P HENS GND U3V3 x o ness e PRTPWR2 16 2514_ 0652 gt PRTPWR2 16 UEV sud R452 R453 R442 lt NC NC 100K F303 TP380 F304 TP381 EEPROM Config T m Downstream 3 E 5V 0 75 5 0 75 22 7 SDA SMBDATA NON_REM1 24 DSCL
35. 8 0 005 meters long At the end of the cable shall be a molded over shielded triple row 15 position D subminiature connector The CPU connection shall have captive screw locks which will be adequate for hand tightening The monitor connection may use small SCrews 1 Product Specification continued Connector Pin Assignment Red V ideo DSUB Pin i Pin i 6 pee o ee Sync GND 15 DDC SCL DDC GND Connector Pin Description D SUB Pin D escription Red Video Red video signal input IGreen Video Green video signal input Blue Video Bhe video signal input GND DDC GND DDC ground for the VESA DDC2Bi function Description Red GND Analog signal ground for the Red video Green GND Analog signal ground for the Green video Blue GND 7 input from host system for the VESA DDC2Bi function 10 Sync GND Signal ground Il GND 12 DDC SDA SDA signal input for the VESA DDCB2i function 13 H SYNC Horizontal signal input from the host system Analog signal ground for the Blue video DVI I DVI D If using DVI D cable C2 C4 C5 is NC Pin Signal Pin Signal Pin Signal 4 1 sv RKC 6 sct 16 AnalogGreen NC 8 Analog V Sync NC 18 RXO C4 Analog H Sync NC 9 RX 1 GND CS 10 DVI I DVI D Connector Pin Description
36. ATA 26 MDATA 27 MDATA 28 MDATA 29 MDATA 30 MDATA 31 1 MDATA15 MDATA14 MDATA13 MDATA12 MDATA11 MDATA10 MDATA8 MDATA31 MDATA30 MDATA29 MDATA28 MDATA27 MDATA26 MDATA25 MDATA24 MDATAZ MDATA6 MDATAS MDATA3 MDATA2 MDATA1 MDATAO MDATA23 MDATA21 MDATA20 MDATA19 MDATA18 MDATA17 MDATA16 2 TP263 P265 P267 P269 P271 P277 P279 P281 P283 P285 P287 P289 P291 P293 P295 P297 P299 P301 P303 P305 P307 P309 P311 P313 P315 P317 P319 P321 P323 P325 P327 P329 12 PCB No 13 lt gt gt 0 311 6 MDATAO P264 MDATA1 a P266 MDATA2 e P268 MDATA3 P270 MDATA4 P272 MDATAS 278 MDATA6 P280 MDATA7 282 MDATA8 P284 MDATA9 P286 MDATA10 e P288 MDATA11 e P290 MDATA12 e P292 MDATA13 e P294 MDATA14 e P296 MDATA15 e P298 MDATA16 P300 MDATA17 e P302 MDATA18 e P304 MDATA19 e P306 MDATA20 P308 MDATA21 P310 MDATA22 P312 MDATA23 P314 MDATA24 e P316 MDATA25 P318 MDATA26 P320 MDATA27 e P322 MDATA28 amp P324 MDATA29 e P326 MDATA30 e P328 MDATA31 P330 13 6832194600P0 VEZE E M4 Go to cover page ACER G24 43 8 9 ACER LCD G24 SCHEMATICS_INTERFACE BD USB AND CAM MIC OUTPUT 4 Go to cover page 1 2 3 4 5 6 7 8 9 10 11 12 13
37. CTRICAL 1 4 1 General Requirements The panel used as the display device shall be an WUXGA resolution 24W TFT LCD This panel shall be approved for use in this monitor 1 Product Specification continued 1 4 2 Panel Timings The controller included with the monitor shall translate all video timings from the CPU that meet the timing requirements listed in Panel specification into timings appropriate for the panel Under no circumstances may the controller supply the panel with timings that may result in damage The controller shall insulate the panel from the CPU so that the panel shall always be driven per it s own specification regardless of the timings being sent from the CPU 1 4 3 Polarizer Hardness The outer face of the front polarizer panel shall be covered with a coating with a 3 hardness value 1 4 4 Backlight Requirements 1 4 4 1 General Requirements The backlight assembly shall be designed to support field replacement at the customer site or authorized service center The lamps shall have a continuous operating life of at least 40 000 hours at 25 The operating life is defined as having ended when the illumination of light has reached 50 of the initial value The lamps shall extend a sufficient amount from the edge of the light guide that sputtering over the life of the lamps shall not cause degradation of the luminance uniformity such as non illuminated bands along the edges of the display 1 4 4 2 Lamps Startup T
38. D SUB PLUG of DDC FIXTURE Refer to figure 4 4 2 Take a video cable then connect the D SUB PLUG and the D sub socket of monitor Refer to figure 5 5 Connect the extended DVI cable to DVI socket of monitor Refer to figure 5 6 Re confirm all the connectors are connected well CAUTION The timing of Chroma shall be setup at T254 P41 before data recording the detail setting parameter from chroma Please See below photo Tirnang Select Timing 254 E 1560 EDID Show List FirstUnused 401 Vid o Output 25180 Swe internace Mode mo 9 16 bit HOOP NUM Xs Syne On Green 9 Pon Size Scale 1 Gamma or 2 2 HS Cutout fon Bilack Level IRE TV Mode None vi Output on 300 Video Format T Select nite Level MOD v Unit of Data Horizontal 31 475 KHz Vertical 42 023 Hz HTotal sou EET 749 23797 ms ss HDisplay G40 26 417 us vDisplay 480 15 250 ms hint HB orn 48 1 906us vEForh 33 1 048 ms 96 vein 2 H Border 16 06356 vBorder 0 254 ms o 0157 vere 300mm of Video 1l wame LL Video p Heyne
39. DN3 4 45591 1 T 6 DM e pene cb s 4 32 XTAL2 CLKIN EN ciza RBIAS 9 O 8 DES 3 ax3mmm 2 2 DP 1 0 1u R438 TP388 L305 1 GND UGND 0 1u R455 p UGND WCMH2012F2SF 900T04 o GS TP402 TP403 74 37 VSS FLAG VDDPLL18 34 VSNP TP408 UGND 55 veer POND C544 C545 TP513 LOCAL REMO SUSP IND FB333 7 ca70 01u 23 UGND UGND 1 0 1u R441 VDD33IO 1 T e meo eee 1 18 4LLLPBY201209T 170Y S P418 UGND GND C551 C552 UGND 1 R459 TP406 TP407 TP399 UGND 5 0 1u 0 1u P310 UGND L306 VBUS1 VBUS1 del 4 33 XTAL1 CLKIN VDDA33 29 HOND OSNND Le DNL 4H uuu d 4 i DS 202 VDDA33 VDD33PLL DIAC EDO 29 3 C553 C554 C555 C556 C557 WCMH2012F2SF 900T04 NC 12 GND 5c 2 R461 0 X304 R458 1 0 1u 0 1u 0 1u 0 1u 3 CAM MIC gt gt R464 100 1 E JWT A2008WRO 5P peu oe 2 cara NC F 24MHz 1M E aii ass PBY201209T 170Y S 14 a VDD18CR GNE Rara i gizi 1898 1 4 82 xai sicud C558 C561 e yo 1319 NC NC 1u 0 1u UGND dl i15 a s UGND TP409 A1 wpe 2 TP417 A2 scx USE 37 vSS FLAG VDDA18PLL 34 Q VENP ades 5 vss SDA 5 C562 C563 TP422 FB344 NC 1 2 VBUS1 UGND 1u 0 1u T XPBY201209T 170Y S TP420 TP421 C3V3
40. DS DO TMDC D1 TMDS GND2 TMDC_D1 TMDS_D2 TMDS_GND1 TMDS_D2 GND1 LV_ SUPPLY SUPPLY DDC D Lc 1 fed 1 DDCc SDA D HDMI_RXC HDMI_RXC HDMI RXO HDMI_RXO HDMI RX1 HDMI RX1 HDMIRX2 HDMI RX2 TR173 3V3 CO D327 XMM4148 3V3 va 5V 10 FB343 PBY201209T 300Y S 3V3HDSW C 11 C515 2 C516 22uF 50V O 1u GND 1322 DVI RX2 Ag DVI_Rx2 DVI RX1 DVI RX1 DVI_RXO DVI RXO 5 DVI RXC DVI RXC HDMI_RX2 46 HDMI RX2 HDMI_RX1 2 HDMI RX1 AQ HDMI RXO HDMI RXO s HDMI_RXC HDMI RXC o DDC_SCL_D1 DDC SDA _ D1 DDC SCL D2 DDC SDA D2 3V3HDSW CO 40 L 18 2 ____ rT 9 13 L 24 L 24 28 DL 33 39 2 GND 10 TS3DV520RHUF 11 517 O 1u 12 13 C518 C519 C520 C521 O 1u 1 O 1u O 1u RX2 6 2 6 RX1 6 RX1 6 RXO 6 6 R528 100 DVIHDMI_SW 1 the volt level must lt 3 3V amp gt 2V RXC 6 RXC 6 lt DVI_LSCL 3 6 R529 100 DVI SDA 3 6 O DVI INPUT 1 HDMI INPUT age 12 13 PCB No C352 O 1u C522 O 1u X DVI HDMI SV 3 6832194600P0 624 M4 Go to cover page 8 7 ACER LCD G24 SCHEMATICS INTERFACE BD SCALER 3V3D FB313 AVDD_ADC PBY201209T 300Y S
41. G 1 Printed wire is broken between P301 pin1 pin2 pin3 pin4 and 1301 1303 1320 2 Check power board OK OK Failure Point Check all LVDS signal pins ms x output from 1314 Y NG Failure Point Failure Point Printed wire is broke or short 1 The cable is broke between between P306 1314 P306 and LCD panel 2 LCD panel is defected ACER G24 Go to cover page 5 3 Checkthe backlight unit Check the BKLT EN signal of rectangle input P301 pin11 at TTL high level OK 5 Troubleshooting continued NG Does the 06 16 output a TTLvoltage level at H status or Is BKLT EN signal of the rectangle being output Check the PWM signal supplied from 1314 pin251 is a PWM pulse width modulation OK y Failure Point Inverter of LCD module is defected OK Failure Point NG gt 1 Printed wire is broke between 1314 pin251 and P301 2 1314 is defected Failure Point NG gt Printed wire is broken between 1306 pin16 and P301 5 Troubleshooting continued ACER G24 Go to cover page 5 4 Abnormal Screen Failure Point Check R G B video signals output from PC host NG gt 1 Check connected PC host if there s no R G B to D Sub R G B connector signals output 2 Video signal cable disconnected
42. ICS POWER BOARD Go to cover page 1 2 3 4 5 6 7 8 9 10 11 12 13 D811 1N4007 D812 1N4007 R870 3 15AH250V P801 au C806 C822 20 R1206 L T802 L806 BEAD 6mm 220 1 X7R 24V P803 804 hare Q802 T801 id m euin L802 SIUE TO INV PQ262 FQPF13N VBUS1 VB PQ 322 2 A 2 OPEISNSOC 0 22 1W E bun D813 1000U 85V 10000 85 220 1000U 85V A N 280uH BEAD A n 1 C858 nx 4 24V 100P 1KV 47b0P AKV C827 e GR X7R cea P6KE180A e 1U 1206 C856 100P X7R E GND 5 055 T803 1uF 450V 1uF 450V a B GND R801 RING CHOKE MEF P15 MEF P15 1 kzR 103P 1KV gt R807 C801 X7R 15 aa 1500 450V c 20 C805 2200P 250V C811 C810 1U 1206 R810 R811 222P 1206 Bus MM x7R B 61 9k R1206 R1206 1801 17A 800V R0805 C847 100P R824 1KV X7R RI C814 215 R835 R0805 1 2K 0805 100P 0805 FBPWM 1802 X7R VER E LTV817 R825 C813 IEA 10K 102P 0805 2 R826 RO805 X7R 1K 0805 IPFC p R838 27K 033 2W 169K 1 R0805 C815 NC lt gt Mid 6 imp R827 C819 C821 ISENSE 104P 0805 2 7KR0805 0010 0805 R828 S858 X7R FBPWMO FBPWM 100 1U 1206 R839 R1206 C816 X7R 1805 102P 0805 431 1 187K 1 X7R R0805 C817 102P 0805 mm t l C818 SG6901 103P 0805 X7R P802 R876 ON OFF BRI R1206 5V RTN 10 52V D pln as 52v D817
43. MI 2 3 1920 1080 I 2200 280 1125 22 5 33 716 59 940 74 176 DVLHDMI 6 7 1440 480 I 1716 276 525 22 5 15 734 59 940 27 000 HDMI 16 1920 1080 P 2200 280 1125 45 67 433 59 940 148 352 DVLHDMI EN os Go to cover page Table 2 AC to DC Converter Requirements The operating range shall be from 90 to 132 and 195 to 265 AVC sinusoidal for all models specified Input power frequency range sha be from 47 5 to 63 Hz over the Input Frequency Range specified input voltage range Power consumption for the monitor shall be less than 46W over the Power Consumption specified voltage and frequency ranges In suspend or sleep mode the power consumption will be less than 2W The AC input shall be fused and become electrically open as a result Line Fuse on an unsafe current level The fuse many not be user replaceable The power supply shall start and function properly when under full load with worst case conditions of input voltage input frequenct operating temperature and cold backlight lamps Input Voltage Range Initial Cold Start The inrush current must be limited to 30A when operated at 120V AC and 50A when operated at 220V AC Inrush current is Inrush Current measured at an ambient temperature of 25 C with the unit temperature stabilized in the power off The power supply shall be damaged when switched ON for one Hot Start second and OFF for one secon
44. P442 TP444 TP440 TP439 TP438 TP46 TP47 48 TP49 TP50 TP51 TP52 TP53 8 CAM MIC DIAG lt lt 1305 STL8110PCH300 DVI HDMI SVV DET DVI 2 3V3 O 5V O Q303 LED_B ACTIVE LOW ius MMBT3906 TP108 MMBT3904 LED_B LED BLUE TP109 TP105 5 O Q304 LED A ACTIVE LOVV Q317 MMBT3906 TP110 MMBT3904 LED_A TP117 TP113 10 11 12 13 TP24 TP429 3V3 FB304 3V3_VDD O 3V3 FB339 3V3_AVDD PBY201209T 300Y S Co PBY201209T 300Y S R526 NASH epe 10K NC 9 TP468 OOOOQ e O o lo lojlo 0 14 zzz zz MADO 3V3_VDD o R476 4 7K NC SSIS S S MAD1 P25 Q324 R525 A7K NC MAD2 P26 MMBT3904 NC GND MAD3 P27 3V3 VDD R468 A 7K NC A MAD4 P32 R469 4 7K NG 555 53 lt MARS E amp aa ad GND PET x 55 lt _ 3V3_AVDD 3V3_VDD MAD7 P43 LED B P44 LED_A lt gt o MADO R311 4 7K NC 5 3V3_VDD o R470 4 7K NC Zze x x zx MALE _ 74LVC373A 5 5995 9 8 ES 3V3 R474 A 7K NC W79L659A25FL GND x GND gt C318 54 de E EE rr T 5 HP DET DVI P5 2 10u 50V NC Es AEST LI er n 3V3_VDD C319 oa 7 80 2 2 R322 EN 22 205 re O 1u 4 7K NC S wu EN pro cem E Po Z0 VGA SCL RXD
45. SDA LVAOM 3 5 DVI SC TE DDC_SCL T O 5 RXC RXCKN m DUET 5 RXC RXCKP 2 DVATP TI RXON Of LVA2M 5 RXO RXOP 97 LVA2P 8 RXI RXIP LVACKM 128 2 LVACKP 2V5 VDDM FB322 VDDM 2 RXZ RX2N LVACKP 194 LVA3M PBY201209T 300Y S 9 TP205 5 RX2 RX2P LVA3M 2 T O C LVA3P 12 E LVA4M 4 BINOM BINOM LVA4P 118 4 FG2N lt 4 GINOM GINOM FG2P 99 22u 50V 4 GINOP GINOP 28 4 SOG SOGINO 4 RINOM RINOM FGON X GND 4 Es RINOP FGOP 4 HSYNCQ HSYNCO FR3N 2 47 O 3V3D FB323 VDDP scu VSYNCO ize PBY201209T 300Y S 9 CyrP214 BIN1M FR2P EE BIN1P FR1N 2 GIN1M 1 ETC GIN1P FRON SOGIN1 FROP 2 RIN1M 2 RIN1P 3 HSYNC1 lt lt gt gt 0 151 7 D THEO MDATAIO jse MBATAi 7 MST9259D MDATAL jes MDATA2 MOATAI2 jaa Mpa as ps ME jaa MDATA4 77 64 122 MDATAS 7 MDATA S faa MDATAG 4 MDATAI6 faa MDATA 74 22 MDATA 7 G 8 MDATA8 2 MDATA 9 10 MDATA 1 1 MDATA 12 AD 0 3 lt lt gt MDATA 13 DBUS O MDATA 14 DBUS 1 MDATA 15 lt gt 16 31 7 DBUS 2 MDATA 16 DBUS 3 MDATA 17 3 ALE ALE 18 3 RD RDZ MDATA 19 TP215 3 WR WRZ MDATA 20 TP216 LVASM 0 3 INT INT MDATA 21
46. UGND TP347 FB335 o mm T PBY201209T 170Y S C481 l 1 zz 100uF 10V C482 0 11 UGND Q 2 1 2 4 5 6 7 8 9 10 11 12 13 No 6832194600P0 8 10 ACER LCD G24 SCHEMATICS INTERFACE BD AUDIO LINE OUT 1 2 9 4 5 6 7 5V D501 TP528 MM4148 amp 40 512 3 3 50 PBY201209T 300Y S WV B E GND 6 AUSD y R540 33 TP530 gt 6 AUSCK gt Bite 33 p 3 3u 50V TP535 e C527 10u 6 AUWS y R545 33 D 6 AUMCK gt R547 33 e P534 C523 C524 10 O 1uF G HDMI AUDIO CODEC deleted for P243W HDMI model 1 2 3 4 5 6 TP529 R541 R559 10K TP531 R548 R560 10K 9 10 11 12 13 516 e SBK160808T 300YS 470 E HDMI LEFT FB345 C502 D348 1500pF X100MVO5 P312 Q TEE SBK160808T 300YS HDMI RIGHT FB346 TP519 470 PH JACK 3P Green C503 D349 FB342 PBY201209T 300Y S 1500pF 100 05 9 10 11 12 13 PCB No 6832194600P0 ACERG24 EUN 4 Go to cover page 8 11 ACER LCD G24 SCHEMATICS INVERTER BD 1 2 3 4 5 6 7 BRI CNOO1 F101 Hoc I 3 1206 aed C101 C102 C104 le 220UF 35V 1u 50V 220UF B5V A 7 3 EU GND O R104 VIN 24V 39k 12 R103 510K R110 2 49K 1 R105 10K cr B C111 SSTCMP m E 047uF GND LCT ENA 2 Q101 NC RIIS C108 C108A 2N3904 OZ9938 150K 7 NC GND 5V GND GND R119 C116 R115 C114 1M 1000P 100K
47. arts firmly Connect FFC cable to LCD panel There are two locks over here when plugging in should be seed Plug 6 lamp cables to the connectors of inverter 511 board ACER G24 Go to cover 512 513 514 515 Use Phillips head screwdriver screwed the No 1 4 screws on both side and assemble the LCD panel and bracket chassis module No1 4 screw size M3x6 Torque 2 5 0 5KGFxCM Use a Phillips head screwdriver screwed the No 1 2 screws No1 2 screw size M4x10 Torque 5 7KGFxCM Use a Hex head and Phillips head screwdriver screwed the D SUB and HDMI connectors No 1 4 Hex Nut screws Size M3x8 Torque 6 5 0 5KGFxCM No 5 screw size M3x8 Torque 6 5 0 5KGFXxCM Use a Phillips head screwdriver screwed the No 1 2 screws No1 2 screw size M3x6 Torque 5 7KGFxCM 4 Assembly and Disassembly Procedures continued Take a key function board to hook with front 516 bezeland connect to key function cable Put a rear cover on the assembled unit and S17 press on force mechanisms locked and firmly attached Assemble the stand upper side to the rear cover S18 through the way of screwing 4 screws till both units firmly attached No1 4 Screw Size M4x10 Torque 13 1KGFxCM A AA 4 Assembly and Disassembly Procedures continued ACER G24 Go to cover page Assemble the hinge cover into both two sides Take two cushion foams one is held the above
48. be flying No Signal When the Video cable is connected but it is no active signal input will show this message then enter power saving 2 OSD Manu continued scenario mode User mode Text mode 6 Empowering Technology Standard mode Graphics mode Movie mode Final Spec contrast C ness OSD So 44 6 1 97 9896 56 sla O25 77 55 Operation Method Step 1 Press Key to initial scenario mode Step press lt gt to select the mode you want different mode will show different color instanti select operation only left and right not cyclic Steps If user have NO action after Step2 OSD will disappear after 10 and do auto scan now the mode will Keep original one no change If user press key after Step2 it means user confirm the chosen mode and monitor will do auto scan as well then the mode is the chosen one DCC CI switch in OSD For Dual Input Model For Analog only Model Remark 1 The DDC CI switch default is in monitor 2 For Analog only Model use to instead of icon in OSD Display Serial Number in OSD Remark The SN data source can be retrieved from EDID Go to cover page AppendixA ACER R17 Series Multiple Language ER Tem gt
49. d Timing The monitor shall synchronize with any vertical frequency from 55 to 76 Hz and with any horizontal frequency from 30 to 94KHz If the input frequency is out of the above specified range the monitor shall display a warning screen indicating that the input frequency is out of range Under no circumstances shall any combination of input signals cause any damage to the monitor 1 3 4 2 Factory Assigned Display Modes There are 24 factory pre set frequency video modes These modes have a factory pre set for all characteristics affecting front of screen performance When the system is powered on previously stored screen parameters for a pre defined mode will be recalled if the operating mode is one of those stored in memory If the operating mode is not one of those stored in memory the monitor CPU will select the PRESET timing for a mode that is the next lowest in horizontal scanning frequency to the mode being currently used The screen parameters may be adjusted by the use of the front bezel controls and then may be saved as a user defined mode The monitor shall include all the preset video timings shown in the following page Please see Note 3 1 Product Specification continued ACER G24 Go to cover page 1 3 4 3 Mode Recognition Pull in 2 Digital inputs DVI HDMI Conflicting video and PC The monitor shall recognize preset modes within a timings are to be treated as Video timings with one range of 1KHz which
50. d for seven consecutive after ot Star cle operating for one hour at full load 25 C and nominal input line voltage The power supply shall contain protection circuitry such that the Uder application of an input voltage below the minimum specified in this table shall not cause damage to the power supply unit nor cause failure of the input The power supply shall operate within IEC 801 4 1 and IEC 801 5 4 2KV for the domestic U S version The UPS power supply shall operate and comply with CE mark Line Transient 1 3 8 Display Communications Channel The monitor assembly shall provide a display communications channel that conforms to VESA DDC2Bi hardware requirements This configuration shall contain the 128 byte EDID file as specified by VESA EDID standard The monitor should not write to the EDID file for the first two minutes of operation following power up UNLESS some action taken by the user or the host CPU forces the write for instance requesting the serial number via the OSD Furthermore it is recommended that CMOS switches be incorporated to isolate the DDC IC from outside connections while the EDID Fault Management is being updated This is to prevent corruption of the data by attempts to read the data while it is being changed 1 3 9 Firmware Update Function same ISP function The update firmware need through from the D Sub connector use DDC 2 bus to do update firmware 1 4 PANEL ELE
51. e 680 3980 6889 d c ch 8 10807 1080 O 00 804 8189 P Me 998 evan ET men oo gt BL 2 x Q A85 2 834 CU 2 8 5 99 LD E aye 8 8 5 2 CUT iz ES 2 C 8 77 OEC T eo arso arao gI J888 E 9189 LD 089 985 cs d Xp 22 00 8880 BE rS8J l 8r8L gt eu oo 9 T804 EN i 1 1806 1804 x DEQ t ae Q S e C 2085 POST 5980 5 8 lt 8 gt 508 C885 108A 3089 TG T3 15AL250V 1803 806 A RISK OF FIRE REPLACE ONLY TYPE CAUTION FOR CONTINUED PROTECTION WITH SAME TYPE AND RATING OF FUSE P801 828 1081 redes reerscaa resa L er ara TO X888 6832194100P01 PTB 1941 08 07 07 H 4 CHE 08 j 8089 T9682 8889 eS89 G801 eno C8 cM La an NO 6 I N 10 11 12 13 PCB No
52. e components defected is possible oo co 5 Troubleshooting continued ACER G24 Go to cover page 5 6 Abnormal Plug and Play Operation 5 6 1 Abnormal DDC2 D SUB Failure Point Confirm the output of serial data on 1312 pin6 synchronize SCLK at TTL level 1312 is defected Failure Point 1 The host machine isn t communicating in DDC2 mode 2 The video cable may have defected or may not be established connection for DDC 3 The 1312 pin6 and P304 pin15 may have no signal or incorrect 4 The R374 R377 is open 5 1312 pin6 is short 6 The input source cable is defected 7 Check 1312 pind signal whether if correct 5 6 2 Abnormal DDC2 DVI Failure Point Confirm the output of serial data on 1313 pin6 synchronize SCLK at TTL level 1313 is defected OK v Failure Point 1 The host machine isn t communicating in DDC2 mode 2 The video cable may have defected or may not be established connection for DDC 3 The 1313 pin6 and P305 pin6 may have no signal or incorrect 4 The R393 or R39 is open 5 1313 pin6 is short 6 The input source cable is defected 7 Check 1313 pin5 signal whether if correct ACER G24 to cover page 5 7 Checking the interface circuit of sync signal 5 Troubleshooting continued 5 7 1 Checking the control circuit of
53. ep 1 3 3 3 On Screen Display used controlled by a Menu button If the buttons remain untouched for OSD turn off time while displaying a menu the firmware shall save the current adjustments and exit Also if the video controller changes video mode while the OSD is active the current settings shall be saved immediately the OSD turn off and new video mode is displayed Description 2 To select the OSD sub Menu 1 Back forward selection of the OSD menu with Audio 2 Decrease the value after sub menu selected MENU Menu Display 2 Speaker Volume Minus 1 Forward selection of the OSD menu with Audio 2 Increase the value after sub menu selected Auto Adjust Function Menu or sub menu auto adjust Menu or sub menu EXIT Scenario mode 1 Product Specification continued 1 3 3 4 OSD adjustment OSD LANGUAGE Select the language used for the OSD menu among English French Italian Deutsch and Spanish RECALL DEFAULTS data copy from factory shipment data OSD DURATION Adjust OSD menu off time range from10 120 second Back light of the LCD panel is cut when the signal is not input AC line power consumption 2W or less The frequency of the horizontal vertical synchronizing signal under the input is indicated CONTRAST AUTO CONTRAST CLOCK PHASE H POSITION V POSITION POWER SAVE INFORMATION NOTE OSD MENU SEE APPENDIX 1 3 4 Monitor Modes and Timing Capability 1 3 4 1 Format an
54. espective color when each signal is terminated by a nominal 75 0 ohms For a given monitor luminance levels are measured using this defined video amplitud driving a monitor meeting the termination requirements The signal amplitude is not to be readjusted to compensate for variations in termination impedance 1 3 2 2 Video Signal Termination Impedance This analog video signal termination shall be 750 1 which shall be resistive with a negligible reactive component 1 3 2 3 Synchronization Sync Signals The Horizontal Sync HS TTL signal is used to initiate the display of a horizontal line HS may be either active high or active low depending upon the timing The Vertical Sync VS TTL signal is used to initiate the display of a new frame VS may be either active high or active low depending on the timing 1 3 2 4 Sync Signal Levels The monitor must accept sync signals from both 3 3 and 5 volt TTL logic families The inputs shall sense a logic 0 when the input is 0 8 volt or less and shall sense a logic 1 when the input is 2 0 volts or greater In addition to these level requirements there shall also be a minimum of 0 3 volt hysteresis provided for noise immunity typically by using a Schmitt Trigger input That is the input level at which the monitor actually detects a logic 0 shall be at least 0 3 volt lower than the level at which it actually detects a logic 1 If the monitor sync processing circuits are designed around the 3 3
55. ever is less for horizontal exception 640x480p 60Hz timing to be treated as PC timing and within 1Hz for vertical 1 3 4 4 User Display Modes In addition to the factory pre set video modes Analog input VGA treats all timings as PC timings provisions shall be made to store up to 9 user modes If the current mode is a user mode the 1 3 5 1 General Requirements monitor shall select its previously stored settings converting the analog RGB signal from a standard WUXGA resolution video controller in the CPU to a signal which can be displayed on the panel The If the user alters a setting the new setting will be stored in the same user mode The user modes are not affected by the pre set command If the input signal requires a new user mode storage of controller will include a PLL A D converters LVDS the new format is automatically performed during transmitter and other circuitry necessary to perform user adjustment of the display if required its function The PLL shall be stable enough to Please see Note 4 ensure that a static image from the CPU is placed Preset timing Chart in the same physical location on the flat panel in Preset Timing Chart 7 each frame uc Sone 1 3 5 2 Video Stretchin z 9 1 720 400 31 472 70 4 1 1 nr The monitor shall contain provisions to stretch the video signal so that an input signal from the 2 computer any resolution smaller than 1920 x
56. ewed the No 1 4 screws to disassemble the LCD panel and bracket chassis module Take out lamp cables right through the No 1 3 No1 4 screw size M3x6 517 square holes and separate the bracket chassis Torque 2 5 0 5KGFxCM module and LCD panel apart 4 Assembly and Disassembly Procedures continued ACER G24 to cover page Examine the panel surface accoring to inspection Use a Phillips head screwdriver unscrewed the 318 criteria Put it aside S21 No 1 4 screws to release the interface board No1 4 screw size M3x6 Torque 9 10KGFxCM Proceed this slap careful yo Disconnect the cable from inverter board 519 Use a Phillips head screwdriver unscrewed the No 1 8 screws No1 6 screw size M3x4 Torque 9 10KGFxCM No7 8 screw size M3x6 Torque 5 7KGFxCM 622 Use a Phillips head screwdriver unscrewed the No 1 5 screws to disassemble the power board Remove inverter shielding bracket No 1 4 screw size M3x6 No 5 screw size M4x8 Torquez9 10K GFxCM Use a Phillips head screwdriver unscrewed the S20 No 1 4 screws Disconnect all of the cable No1 4 screw size M3x6 Torque 9 10KGFXCM 523 Remove the inverter board ACER G24 5 Troubleshooting to cover page 5 1 Nodisplay on the screen Screen is black and colour of LED is amber Does OSM display upon pressing the MENU button OK Check if the sync signal output from connected computer and the video cable is co
57. horizontal sync pulse Check the horizontal sync signal on 1314 pin46 TTL level OK v Proceed to 5 8 Checking the resolution change IC movement section Failure Point Qu dco N Video cable is defected Printed wire is broken between P304 pin13 and 1314 pin46 FB305 R364 R363 is open R371 C336 D305 is short 1311 is defected 5 7 2 Checking the control circuit of vertical sync pulse Check the vertical sync signal on 1314 pin47 TTL level OK v Proceed to 5 8 Checking the resolution change IC movement section Failure Point S TS 12 Video cable is defected Printed wire is broken between P314 pin14 and 1314 pin47 FB306 R368 R369 is open or more than one component R370 C335 D303 is short 1311 is defected 5 Troubleshooting continued 5 8 Checking the resolution change IC movement pin38 pin19 pin37 pin131 OK Is there 1 8V pin160 pin181 pin225 OK Is 14 318MHz during power on OK Is 3 3V supplied to 1314 pin9 at low level Reset again OK 01148 pin61 pin250 12 0 pin170 pin184 pin203 pin216 pin236 pin252 pin20 pin28 upplied on 1314 pin16 pin2 pin50 pin2 pin78 pin96 pin143 clock input to 1314 pin35 and pin36 at TTL level ACER G24 Go to cover page NG ee circuit
58. ime The backlight lamps shall start about 2 sec of the time the monitor power switch is pressed or the monitor is restarted from a power down mode The starting time shall stay about 2 sec for the minimum expected life of the lamps Test conditions are as follows Ambient Light lt 1 0 lux Temperature 10 C Inactive Time gt 24 hours 1 4 5 Defects 1 4 5 1 Visual Inspection The LCD panel shall be inspected with all pixels set to white black red green and blue The color variation brightness variation and overall appearance must not be perceived as poor quality by Lite On Areas and or parameters considered questionable shall be subjected to detailed measurements 1 Product Specification continued 1 4 5 2 Display Degradation Over the life of the product variation of the parameters specified in Panel specification shall be maintained within reasonable limits The panel must not exhibit any significant defects while in operation excluding the CCFL operation This does not in any way change the warranty given by the panel manufacturer 1 4 5 3 Light Leakage Except for the active display area there shall be no light emission visible from any angle from any other part of the display For this test the ambient illumination must follow panel s specification 1 4 5 4 Allowable Defects No cosmetic defects are allowed except those specified
59. le Number Minimum Separation DET 0 1 mm 0 3 mm 0 31 mm 0 5 mm 0 51 mm 1 25 mm 1 26 mm 2 5 mm 2 51 mm 3 75 mm Greater than 3 75 mm Note Allowable distance between spots of two sizes is the minimum separation number for the smaller spot Therefore if there are two spots 1 30mm and 0 4mm in diameter they must be at least 15mm apart 1 5 Optical Characteristics Depends on the LCD supplier s spec Details refer to QA Inspection Spec EN to cover page 2 1 MAIN OSD MENU Outline 5m E c Hrizk L Only Analog Input Model IL Gnly Dual Input Model The description for control function Description Adjust the contrast between the foreground and background of the screen image B Adjust the background brightness of the g screen image Adjust picture Focus available in analog mode only Clack Adjust picture Clack available in analog mode only Sub Menu eee ane Item SE H Position Adjust the herizontal position dou available in Analog mede onk V Position Adjust the vertical position available Analog mode anly Warm Set the color temperature t warm white Cool Set the color temperature to coal 55 white Foci jh tees ACM ACM Adaptive Contrast Management CM ON OFF Switch default OFF User Adjusts Red Green alue intensity Deutsch m pn x Nederlands version OSD only Multi la
60. nauthorized modification of design or replacing non RoHS parts service providers assume all liability Qualified Repairability Proper service and repair is important the safe reliable operation of all series products The service providers recommended by vender should being aware of notices listed in this service manual in order to minimize the risk of personal injury when perform service procedures Furtermore the possibile existed improper repairing method may damage equipment or products It is recommended that service engineers should have repairing knowledge experience as well as appropriate product training per new model before performing the service procedures NOTICE To avoid electrical shocks the products should be connect to an authorized power cord and turn off the master power switch each time before removing the AC power cord To prevent the product away from water or explosed in extremely high humility environment To ensure the continued reliability of this product use only original manufacturer s specified parts To ensure following safty repairing behavior put the replaced part on the components side of PWBA not solder side To ensure using a proper screwdriver follow the torque and force listed in assembly and disassembly procedures to screw and unscrew screws MK Go to cover page 1 1 SCOPE This document defines the design and performance requirements for a 24W inch diagonal fla
61. nguage selection pn NIA NIA NIA NM A 2 OSD Menu Sub Menu Description Adjust the horizontal position of the OSD Adjust the vertical position of the OSD OSD Timeout Adjust the OSD timeout Select input signal fram analog D Sub Shey the resolution HAY frequency andinput of current input timing Clear each eld status of Auta comfigurationand set the calor temperature te Cool Save user adjustment and OSO disappear Hot Key Menu Digital only Dual XT input signal oa digitalki DWI enly Dual Input only Gual inpu DOCI Turn ONOFF ODO support Be ues EJ Outline With Audio Function The description for Hot Key function Item Operation Description Adjustment Reset Range Value Volume When the OSD is Volume of Audio 0 100 Closed Press left or adjustment The right button will be Audio will be Mute Volume Hot Key when Volume 0 Function OSD Message Outline Auto Config Please Wait The description for OSD Message Item Description Auto config please wait When user press Hot Key Auto will show this message and the monitor do the auto config function Input Not Suported When the H sync Frequency V sync Frequency or Resolution is out of the monitor support range will show this message This message will be flying Cable Not Connected When the Video cable is not connected will show this message his message will
62. nnected properl OK NG NG Proceed to 5 5 Abnormal OSM display section Proceed to 5 4 Abnormal Screen section Input the sync signal of computer or change to a standard shipped cable for cross test ACER G24 Go to cover page 5 Troubleshooting continued 5 2 Nothing displays on the screen Screen is black and colour of LED is blue heck if the backlight i slightly lightened from upper corners right left of LCD NG Proceed to 5 3 Checking the backlight unit section panel OK Does RGB video signals output om connected PC host 1 Change pattern of video signal outputs from the PC host to optimum resolution 2 Reconnect the video cable 3 Cross test the other workable video cable OK Check if OSM menu is displayed upon pressing the MENU key Failure Point heck if video signal cable is connected properly between LCD monitor and PC host NG gt The cable is disconnected Proceed to 5 4 Abnormal Screen section Check if 3 3V is 1302 pin2 s pplied from 1301 pin2 2 5V is supplied from 1303 pin2 and he 1 8V power is supplied from OK Check if the Voltage on 1301 1303 1320 pin3 is high DC level at 5V Failure Point N
63. npul ETLAFO40055100114 4321 Test E56051790355U0090014502 Input The S N SIN 6 When EDID was written successfully that will show below message on the screen Test OK MODEL Acer P243WN LAEOA0058100114A4321 YEAR 2008 WEEK 10 MODEL Acer P243WN S N LAFO400581001 14A4321 YEAR 2008 Week Analog CheckSum JE 67 DVI CheckSum 7 Writing EDID Process continued Writing HDMI Process Chose the folder Acer HDMI then double click Select the acer HDMI EXE to execute it According to the previous process step3 step6 to write HDMI EDID 5 Acer VGASDVI 4 END MPO PEE m A uu T 1 4 I7 cfr Muto l On wm Gu 8 Schematics and Layouts 8 1 ACER LCD G24 SCHEMATICS BLOCK DIAGRAM 1 2 3 4 5 6 8 LCD Module L IM240CTO3 A LTM240CTO1 E Inverter Board Brightness Inv On Off 1314 DDR C Power Board EM6A9320BI Scaler MST 92591 110 220 Input DDC BCL DL 8 DDC SCL D DDC SDA D1 DDC SDA D F DSUB L306 MCU W79L659A25FL XTAL 14 3MHZ I312 DDC 24LCOZB D SUB SCL D SUB SDA P304 10 11 12097 Flash W39LO40Ap70Z 10 11 12 P303 12 PCB No 13 Function Key Board 13 ACERG24 35 4 Go to cover page ACERG24 EA 8 2 ACER LCD G24 SCHEMAT
64. p R486 _ D305 C336 R392 C358 D306 R371 2 1311 R390 C356 y en 5 o T C417 C4 7 o D303FB306 RN301 RN302 RN305 RN306 R368 C334 1042039 65 70 80 90 100 110 120 128 E v TE IN O 2 A UJ po up o S w 21 gt a 20 m TEE a ra gt 5 C459 Z w L301 e NWAMANOO iO OrN Ww C460 R322 T w e 2 oj T LJ Q 2 es e DCI L o E R421 A e aig BB xxi PA Pw 4 C320 2 N 30 20 T A 9 n EN Ww i EN e Oo O and WwW C O Oo 20 27 ux O2 20 gt zx60m O um 80 w ww Www ww O w 0316 E 1 RRA 0304 9 9 R507 Or HERB EE 5055008 U a U L Pal e o 03170 gt hs aL ao Ww O iow C w w w we Bv NO p p D Ww 01 LL 61 0 09 E3 2920 9 8 15 ACER LCD G24 LAYOUTS FUNCTION KEY BOARD C A 2 Y D601 C601 C602 C603 O832194800P0A C604 AUTO 5605 2605 92 1946 06 08 01 5606 C 00b 10 7 M 10 11 11 12 12 PCB No
65. r page 2 4 5 6 7 8 9 10 11 12 13 gt gt EN RGOG 240 LEDORANGE LEX vu Menu KEY C601 O 1u C602 C603 P601 LED BLUE LED AMBER POWER PLUS C604 MINUS MENU SELECT OOO 2NObhQg0N000 10 HEADER C605 C606 En NO 6 I 10 11 12 13 PCB No 6832194800P0 024 KA 8 13 ACER LCD G24 LAYOUTS POWER BOARD M4 Go to cover page 1 2 3 4 5 6 7 8 9 10 11 12 13 POWER BOARD TOP SILK POWER BOARD BOTTOM SILK lt Q 989 J815 J814 Y cra 8 BRI A EN 5V RTN ON OFF 8889 689 I T Da tI80 5184 9180 5081 802 n 00 0 huj 8 T80O1 7 D815 GE 12 1805 5 L ir 2 ENBA CF Is Co c 8 cosy al Tesi 2 ro b 22 So ls GE lt SHE g 9527 ei i CES C O r SDS o E D 802 C805 J811 98 6 A v 00 2584 1080 53 R869 C NTF85 ROSE 3 TO8L area gt 888A Q argu amp o s 2 B 89 9 d 2 71 araa 2 8 ey
66. section Proceed to 5 9 Checking the DC DC converter NG circuit section Proceed to 5 9 Checking the DC DC converter s 14 318MHz clock outpu from X302 pin1 at TTL level during power on NG Failure Point Print wire is broken between X302 pint and 1314 pin36 Check the output NG Failure Point X302 is defected Failure Point of 3 3V H pulse from Failure Point 306 12 1314 is defected OK Failure Point Print wire is broken between 1306 pin12 and 1314 ping 1306 is defected ACER G24 5 Troubleshooting continued to cover page 5 9 Checking the DC DC converter circuit Check if the 5V is output from P301 pint pin2 pin3 pin4 to 1301 1303 1320 pin3 OK Check if the 3 3V 2 5V and 1 8V line voltage is output from 1301 1302 1303 pin2 OK Failure Point Printed wire is broken between 1301 1302 1303 pin2 and I314 power supply pin Failure Point Printed wire is broken between P301 pin1 pin2 pin3 pin4 and 1301 1303 1320 pin3 Is the output FB301 being supplied to 1301 1303 1320 pin3 OK NG v n Failure Point Failure Point 1301 1303 1320 is defected Printed wire is broken between 1301 1303 1320 pin3
67. ser mod The new 5 will 4 is 5 1 1 i nc The DC AC Inverter Is on the power board The The user modes be cleared is same as Factory mode Just do Internal Factory Reset 5 Internal Factory Reset and OSD Factory Reset behavior frequencies used by the DC AC inverter used to power the FACTORY PRESET VIDEO TIMINGS DIGITAL INPUTS backlight shall be chosen so as to prevent any noticeable effects on the flat panel such as a rolling effect Pixel H Active V Active H tot HB V tot VB ur Bio freq Inputs 1 3 7 Power Supply Requirements code kHz Hz The AC to DC converter power supply for the monitor shall 17 18 720 576 P 864 144 625 49 31 250 50 000 27 000 DVLHDMI 5 be an external AC to DC converter brick This brick shall 19 1280 720 P 1980 700 750 30 37 500 50 000 74 250 DVLHDMI 20 1920 1080 I 2640 720 1125 22 5 28 125 50 000 74250 DVLHDMI have an IEC receptacle for main power input anda pin in 21 22 1440 576 I 1728 288 625 245 15 625 50 000 27 000 HDMI socket for DC power out The brick shall provide 3l 1920 1080 P 2640 720 1125 45 56 250 50 000 148 500 DVLHDMI sufficient power for both the monitor and the backlight 39 1920 1080 I 2304 384 1250 85 31 250 50 000 72 000 DVLHDMI NC assembly and shall meet requirements specified in Table 23 720 480 P 858 138 525 45 31 469 59 940 27 000 DVLHDMI 4 1280 720 P 1650 370 750 30 44 955 59 940 74 176 DVLHD
68. t panel monitor The display element shall be a WUXGA 1920x1200 resolution TFT LCD Thin Film Transistor Liquid Crystal Display 16 7M color RGB Hi FRC images are displayed on the panel Video input signals are analog RGB 0 7Vp p When the systemis powered on previously stored screen parameters for a pre defined mode will be recalled if the operating mode is one of stored in memory 24 factory 9 users timing This monitor operates normal by non interlaced mode DDC Display Data Channel function is DDC2Bi compliance Power saving function complies with the DPMS Display Power Management Signaling standard 1 2 GENERAL REQUIREMENTS AMLCD LTM240CTO1 LTM240CTO3 1 2 1 Test Condition Brightness level amp contrast level max Full white pattern test mode following spec Warm up more than 1 hr ambient light 10 Lux Luminance meter CA110 or BM7 or same equipment 1 2 2 Test Equipment The reference signal source is a calibrated Chroma 2135 video generator or higher The use of other signal generators during qualification and production is acceptable provided the product complies with this specification 1 3 ELECTRICAL This section describes the electrical requirement of the monitor The LCD monitor consists of an interface board a power board a function key board The interface board wil house the flat panel control logic brightness control logic audio function control option key function control DDC and DC to DC
69. ter Put the dissembled monitor closed to by myself S9 separating the upside of the front bezel 5 Using properly force to pull up front bezel that will let the locking mechanism of left side right side and down side separated LEFT SIDE iy Wedge your finger between the front bezel and the panel then pry up on the front bezel to disengage the locking mechanism SS Hold one side of down side that had been separated from front bezel Use properly force to pull up front bezel 510 Insert steel rule between panel and front bezel Using properly force to let the locking mechanism of front bezel and rear cover separated Separating all of the locking mechanism of the front bezel in turn Unhook the key function board from front bezel 511 disconnect the key function cable ACER G24 4 Assembly and Disassembly Procedures continued Go to cover page 912 513 514 Use Hex head screwdriver unscrewed 5 screws to Unplug 6 lamp cables release the DVI D SUB and HDMI connectors 515 No1 4Hex Nut screws Size M3x8 Torque 6 5 0 5KGFxCM No 5 screw size M3x8 Torque 6 5 0 5KGFXCM Disconnect the FFC cable to the connector of S16 panel Use finger to push the lock according to arrow direction then take out the FFC cable Use a Phillips head screwdriver unscrewed the No 1 2 screws to lease power plug No1 2 screw size M3x10 Torque 5 7KGFXxCM Use a Phillips head screwdriver unscr
70. ton Ring rhe rainbow effect caused by non uniform cell thickness W hen the unit lights variation non uniform ity M ottling splotchiness appears light white w ith the display and might vary in size A W hen the unit lights line s the monitor vertical or major Dim Line A horizontal axis appear dim but not com pletely on or off Cross Lines Off W hen the unit lights lines in both the minor and major axis do not appear Bright Dark Dot A sub pixel R G B dot stuck off on electrical ACER G24 7 Go to cover page 1 4 5 6 Smudges Streaks and Smears When viewing the panel oriented so as to maximize reflected light there shall be no visible smudging streaking smearing or other nonuniformity from contaminants fingerprints or defects in any of the visible surfaces This is independent of whether the unit is operating or off 1 4 5 7 Other Defects Undefined defects that are considered to be rejectable by Lite On will be reviewed by Lite On as they become apparent These panels will be referred to the Lite On Corporate Manufacturer Purchasing Agreement for disposition 1 4 5 8 LCD Inspection Put LCD panel on inspection table and illuminate the panel with a daylight fluorescent lamp located above the panel surface such that the luminance at the LCD panel is between 1000 lux and 1500 lux Defect limits are given in Table 4 Average Diameter smaller of L W 2 or L 20 2W Acceptab
71. volt logic family then the sync inputs must be 5 volt tolerant 1 3 2 5 Sync Signal Loading TTL input loading shall be equivalent to one TTL input load When logic 0 is asserted by a sync input the maximum current source from any single monitor sync input to the driver is 1 6 mA When logic 1 is asserted the maximum current source from the driver to any single monitor sync input is 400 uA Go to cover page 1 3 2 6 Abnormal Signal Immunity The monitor shall not be damaged by improper sync timing pulse duration or absence of sync or abnormal input signal amplitude video and or sync too large or too small or any other anomalous behavior of a graphics card video generator when changing modes or when any combination of input signals is removed or replaced Additionally under these conditions the monitor shall not cause damage to the driving source 1 3 3 User Controls and Indicators 1 3 3 1Power On Off Switch The monitor shall have a power control switch visible and accessible on the front of the monitor The switch shall be marked with icons per IEC 417 5007 and 5009 The switch shall interrupt the DC supply to the monitor 1 3 3 2 Power Indicator LED The monitor shall make use of an LED type indicator located on the front of the monitor The LED color shall indicate the power states as given in Table 1 Table 1 LED Color Function Full Power The Lite ON On Screen Display system shall be le
72. wdriver screwed the No 1 5 screws till that power board and bracket chassis base firmly attached No1 4 screw size M3x6 No5 screw size M4x8 Torquez9 10KGFxCM 4 Assembly and Disassembly Procedures Use a Phillips head screwdriver screwed the No 1 4 screws till that interface board and bracket chassis base firmly attached No1 4 screw size M3x6 Torquez9 10KGFxCM Take the key function cable out from the hole shown as photo Fix the function key cable with a PVC tape Turn over the bracket chassis base then fix the inverter board Use a Phillips head screwdriver screwed the No 1 4 screws till that inverter board and bracket chassis base firmly attached No1 4 screw size M3x6 Torque 9 10KGFXCM 4 Assembly and Disassembly Procedures continued ACER G24 Go to cover page Connect cable into inverter board CNOO1 Take an inverter shielding bracket to cover the inverter board Use a Phillips head screwdriver screwed the No 1 6 screws till that inverter shielding bracket and bracket chassis base firmly attached No1 6 screw size M3x4 Torque 9 10KGFxCM S7 avr mb CREE EIU pl UA Ji y Connect the FFC cable to the connector of the LCD Angel 5 degrees 59 Take lamp cables out from the holes shown as the 510 photo Turn the monitor faced down and put it on the 59 bracket chassis module till both p

Acer LCD MB243WABNS User's Manual

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