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AOC 919SWA manual

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Table of contents for the manual

  • Page 1

    19" LCD Color Monitor A O C 9 1 9 S w a 1 Service Service Service Horizontal Frequency 30-80 kHz T A B L E O F C O N T E N T S Desc ript ion P a g e D e s c r i p t i o n P a g e SAFETY NOTICE ANY PERSON A TTEMPTING TO SERVICE THIS CHASSIS MUST F AMILIARIZE HIMS ELF WITH THE CHASSIS AND BE A W ARE O F THE NECESSARY SAFETY PRECAUTIONS TO BE USE[...]

  • Page 2

    19" LCD Color Monitor A O C 9 1 9 S w a 2 Revision List Revision Date Revision History Remark T99LHDDBWKA1ANE Initial release T992HDDBWKA2ANE IVO M190MWW3 A00 Dec.-25-2009 Panel list TPV TPM190A1[...]

  • Page 3

    19" LCD Color Monitor A O C 9 1 9 S w a 3 1. Monitor S pecifications Model name 919Swa Driving system TFT Color LCD Viewable Image Size 48.1c m diag oanl Pixel pi tch 0.2835mm(H) x 0.2835mm(V) Video R, G, B Analog lnterfac e Separate Sync. H/V TTL Display Color 16.7M Colo rs LCD Panel Dot Clock 135 MHz Horizontal scan range 30 kHz - 83 kHz Hor[...]

  • Page 4

    19" LCD Color Monitor AOC 919Swa 4 2. LCD Monitor Description The LCD MONITO R will contain a main board, a power board , an audio board and a key bo ard which house the flat panel control logic, brightness control lo gic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight of pa nel and the main board chip s [...]

  • Page 5

    19" LCD Color Monitor AOC 919Swa 5 3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or of f. The other control knobs are located at front panel of the monitor (See Figure ). By changing these settings, the pictur e can be adjusted to your pe rsonal preferences. * The power cord should be conne ct[...]

  • Page 6

    19" LCD Color Monitor AOC 919Swa 6 Text Internet Internet Mode Game Game Mode Movie Movie Mode Sports Sports Mode Gamma1 Adjust to Gamma1 Gamma2 Adjust to Gamma 2 Gamma Gamma3 Adjust to Gamma 3 Off Disable dynamic contrast ratio DCR On Enable dynamic contrast ratio Image Setup Clock 0-100 Adjust picture Clock t o reduce Vertical-Line noise. Ph[...]

  • Page 7

    19" LCD Color Monitor AOC 919Swa 7 AutoDetect on or off Disable or Enable AutoDetect Mode Demo on or off Disable or Enable Demo Picture Boost Frame Size 14-100 Adjust Frame Size Brightness 0-100 Adjust Frame Brightness Contrast 0-100 Adjust Frame Contrast H. position 0-100 Adjust Frame horizontal Position V.position 0-100 Adjust Frame vertical[...]

  • Page 8

    19" LCD Color Monitor AOC 919Swa 8 4. Input/Output Specification 4.1 Input Signal Connector Pin Number 15-Pin Side of the Signal Cable Pin Number 15-Pin Side of the Signal Cable 1 Video-Red 9 +5V 2 Video-Green 10 Ground 3 Video-Blue 11 N.C. 4 N.C. 12 DDC-Serial data 5 Detect Cable 13 H-sync 6 GND-R 14 V-sync 7 GND-G 15 DDC-Serial clock 8 GND-B[...]

  • Page 9

    19" LCD Color Monitor AOC 919Swa 9 5 Panel S pecification 5.1 Display Characteristics M190MWW3 The M190MWW3 is a color active matr ix thin film transist or (TFT) liquid crystal displa y (LCD) that uses amorph ous silicon TFT as a switching device. It is composed of a TFT LCD panel, a timing controller, voltage refe rence, common voltage, drive[...]

  • Page 10

    19" LCD Color Monitor AOC 919Swa 10 Note (1) Please refer to the attach ed drawings for more information of front and back outline dimensions. 5.2 Optical Characteristics M190MWW3 TPM190A1[...]

  • Page 11

    19" LCD Color Monitor AOC 919Swa 11 5.3 Electrical Characteristics 1.TFT LCD Module: M190MWW3 Note: A. If it exceeds MIN/MAX values, then "CCFL Life", "ON/OFF Cycle", and "SAFETY" will not be guarante ed. B. CCFL Frequency should be ca refully determined to avoid interferen ce between inverter and TFT LCD. C. The [...]

  • Page 12

    19" LCD Color Monitor AOC 919Swa 12 TPM190A1[...]

  • Page 13

    19" LCD Color Monitor AOC 919Swa 13 6. Block Diagram 6.1 Sof tware Flow Chat 1 2 N Y 5 Y N 10 Y N 12 Y N 7 Y N 6 4 3 8 9 14 11 13 Y N 15 Y N 16 17 19 Y N 18[...]

  • Page 14

    19" LCD Color Monitor AOC 919Swa 14 REMARK: 1) MCU initialize. 2) Is the EPROM blank? 3) Program the EPROM by default values. 4) Get the PWM value of brightness from EPROM. 5) Is the power key pressed? 6) Clear all global flags. 7) Are the AUTO and SELECT keys pressed? 8) Enter factory mode. 9) Save the power key stat us into EPROM.T urn on th[...]

  • Page 15

    19" LCD Color Monitor AOC 919Swa 15 6.2 Electric Block Diagram 6.2.1 Main Board FLASH MEMORY SST25LF020A-33-4C-SAE ( U402 ) Scalar HX6803-A000LAG (Include :MCU,ADC,OSD etc) (U401) Panel Interface (CN405) EEPROM M24C04-WMN6TP (U406) D-Sub Connecto r (CN101) EEPROM M24C02-WMN6TP (U101) DDC1_SDA DDC1_SCL Key Control Interface ( CN408 ) Crystal 24[...]

  • Page 16

    19" LCD Color Monitor AOC 919Swa 16 6.2.2 Inverter / Power Board Audio Feedback Circuit T ransformer (PT801) MOSFET (Q805,Q806) Lamp Output Circuit PWM Control IC OZ9938GN (IC801) ON/OFF DIM PID 16V EMI filter S tart Circuit (R904,R905 ， R906) PWM Control IC LD7576 (IC901) T ransformer (T901) A C in p ut 16V 5V Bridge Rectifier ,Filter Recti[...]

  • Page 17

    19" LCD Color Monitor AOC 919Swa 17 7. Schematic 7.1 Main Board R1 2 5 4K7 1/ 16W 5% VGA_PLU G O EM MO D E L Siz e Rev Dat e Sheet of TPV M OD EL PC B NA ME 称爹 T P V ( T o p V icto ry E l e ctr on ics Co . , L td . ) Key Component 絬 隔 瓜 絪 腹 AOC 931SN D TB D B 25 M onday , Sept em ber 21, 2009 G2681-1-4 < 称爹 > 02.I nput [...]

  • Page 18

    19" LCD Color Monitor AOC 919Swa 18 POWE R_KEY # VCC3 IO C438 0.1uF /16V C439 0.1uF /16V KEY 1 SDO CSN SCK SDI GND RST PANEL_ID # 7 SDI CSN SCK SDO VCC3 IO XTAL _OUT R469 0R05 1/ 16W R456 1K 1 /16W 5% SPI_ WP# VCC1 .8 5 R468 N C VCC3 .3 GND FB406 BEAD 1 2 OE M MO D EL Siz e Rev Date Sheet of TPV MOD EL PCB NAME 称爹 T P V ( T op V i ctor y E[...]

  • Page 19

    19" LCD Color Monitor AOC 919Swa 19 PB2 Ripple Current NG PB4 PB5 PB0 PB6 LVDS OUTPUT on_Panel O E M MO D E L Siz e Re v Da te Sheet of TP V MO D E L PCB N AME 称爹 T P V ( T op Vi ctor y E l ectr on ics Co . , L td . ) Key Componen t 絬 隔 瓜 絪 腹 AOC 931SN D TB D A4 45 M onday , Sept em ber 21, 2009 G2681-1-4 < 称爹 > 04. Out[...]

  • Page 20

    19" LCD Color Monitor AOC 919Swa 20 U 403 N C/ AP1117D 33LA A DJ( G ND) 1 VOU T 2 VI N 3 V CC3 .3 D VCC 3. 3D 4 R 478 NC Q411 2N 3904S-R T K/ PS R 477 4K7 1/16W 5% PA NEL _ID# V CC1 .8 3 R 441 1K 1/ 16W 5% Q408 2N3 904S-RTK/P S D 402 SR 24 R 447 NC C4 3 2 0. 1uF /16V + C 424 100uF M 16V + C 426 100uF M 16V + C42 3 100uF M 16V R438 3.3 O HM 2W [...]

  • Page 21

    19" LCD Color Monitor AOC 919Swa 21 7.2 Power Board R 821 1M 1/10W 5% R81 6 10K 1/ 10W 1% C 807 1uF D 801 LL4148 R80 5 100R 1/ 10W 5% R8 2 4 5K 1 1/10W R83 0 NC OEM M OD EL Size Re v Date Sheet of T PV M ODEL PC B NAME 称爹 T P V ( T op V i cto ry El e ctro n i cs Co . , Ltd . ) Key Component 絬 隔 瓜 絪 腹 PW PC 9941LH D 1 2 Cu sto m 2[...]

  • Page 22

    19" LCD Color Monitor AOC 919Swa 22 ZD92 1 RLZ 22B 1 2 R903 100K O HM 2W L904 L L903 L F B903 BEAD 1 2 L905 L OE M MO D E L Size Rev Date Sheet of TP V MO D E L PCB N AME 称爹 T P V ( T op Vi ctory El e ctro ni cs Co . , Ltd . ) Key Componen t 絬 隔 瓜 絪 腹 PW PC9941 LHD 1 2 Custo m 34 Monday , Jun e 29, 2009 715G2824-2 O D M MO D E L [...]

  • Page 23

    19" LCD Color Monitor AOC 919Swa 23 O E M MO D E L Siz e Re v Da te Sheet of T PV M OD EL PC B N AME 称爹 T P V ( T o p V icto ry E le ctro n i cs Co . , L td. ) Key Component 絬 隔 瓜 絪 腹 PW PC 9941LH D 1 2 A 44 M o nday , J un e 29, 2009 715G2824-2 OD M M OD EL 04. AU D I O G2824-2-X -X -4-090627 919swa IC with Heat-sink(90G6295-3) [...]

  • Page 24

    19" LCD Color Monitor AOC 919Swa 24 8. PCB Layout 8.1 Main Board[...]

  • Page 25

    19" LCD Color Monitor AOC 919Swa 25[...]

  • Page 26

    19" LCD Color Monitor AOC 919Swa 26 8.2 Power Board[...]

  • Page 27

    19" LCD Color Monitor AOC 919Swa 27[...]

  • Page 28

    19" LCD Color Monitor AOC 919Swa 2 8 8.3 Key Board[...]

  • Page 29

    19" LCD Color Monitor AOC 919Swa 2 9 9. Maint ainability 9.1 Equipment s and T ools Requirement 1. V oltmeter . 2. Oscilloscope. 3. Pattern Generator . 4. DDC T ool with an IBM Compatible Computer . 5. Alignment T ool. 6. LCD Color Analyzer . 7. Service Manual. 8. User Manual.[...]

  • Page 30

    19" LCD Color Monitor AOC 919Swa 3 0 9.2 T r ouble Shooting 9.2.1 Main Board 1. NO SCREEN APPEAR No power No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Measure U404 V out=3.3V U405 V out=1.8V Reinsert or check the power section X401 oscillate waveforms are normal Replace U4[...]

  • Page 31

    19" LCD Color Monitor AOC 919Swa 3 1 No picture (LED orange) No picture OK OK NG NG Measure U404 V out=3.3V U405 V out=1.8V Replace U404,U405,CN404 X401 oscillate waveforms are normal Replace X401 Check if the sync signal from computer is output and video cable is connected norm ally Input the sync signal of computer , or change the cable Repl[...]

  • Page 32

    19" LCD Color Monitor AOC 919Swa 3 2 White Screen White screen Measure Q404base is low level? X401 oscillate waveform is normal Check FB402,Q405 is broken,or CN405 solder? Check Correspondent component. Replace P ANEL Check Correspondent component. Replace U401 OK OK OK Replace X401 OK NG NG NG NG Check reset circuit of U401 is normal[...]

  • Page 33

    19" LCD Color Monitor AOC 919Swa 3 3 9.2.2 Power Board 1. No Power Check Z D902 = 16 V Check AC line volt 1 10V or 240V Check AC inpu t Check the voltage of C9 05(+) Check bridge rectified circuit and F901 circuit Check sta rt voltage for the pin3 of IC90 1 Check R904, R905,R906 and Ch ange IC901 NG Check the auxiliary voltage 1) Check IC901,T[...]

  • Page 34

    19" LCD Color Monitor AOC 919Swa 3 4 2. W/LED No Backlight Check C812 (+) =16V NG OK Change adapter and MB Check ON/OFF sign al Check main board NG OK Check IC801 pin15=1 6V NG OK Change Q801 Check the pin13 of IC8 01 have saw tooth wave NG Change IC801 Check PT801 have the output of square of wave at sh ort Change C819,C820,C821 ,C822 Check t[...]

  • Page 35

    19" LCD Color Monitor AOC 919Swa 3 5 9.2.3 Key Board OK OK OSD is unst able or not working Is Keypad board connectin g normally? Is Button Switch normally? Is Keypad board normally? Check main board Connect Keypad Board Replace Button Switch Replace Keypad Board NG NG NG OK[...]

  • Page 36

    19" LCD Color Monitor AOC 919Swa 3 6 10. White- Balance, Luminance Adjustment Approximately 30 minutes should be all owed for wa rm up before proceeding white balan ce adjustment. Before sta rted adjust white balance , ple ase set the Chroma-7 120 MEM Channel 3 to W arm (6500K) color , MEM Channel 4 to Normal (7300K) colo r , MEM Channel 9 to [...]

  • Page 37

    19" LCD Color Monitor AOC 919Swa 3 7 C. Adjust Cool (9300K) color-tempe rature 1. Switch the Chroma-7120 to RGB-Mode (with p ress “MODE” butt on) 2. Switch the MEM. Channel to Channel 9 (with up or down arrow o n chroma 7120) 3. The LCD-indicator on chroma 7120 will show x = 313 ±30, y = 329 ±30, Y = 200 cd/m2 4. Adjust the RED of color1[...]

  • Page 38

    19" LCD Color Monitor AOC 919Swa 3 8 1 1. Monitor Exploded View[...]

  • Page 39

    19" LCD Color Monitor AOC 919Swa 3 9 Item Description Item Description 1 BEZEL(L19WA-8Q1A) 11 HINGE 2 LENS 12 STAND TOP 3 KEY PAD 13 STAND 4 KEY BOARD 14 BASE8S2 5 PANEL 15 FOOT 6 POWERBOARD S1 SCREW 7 MAIN BOARD S2 SCREW 8 MAIN FRAME S3 SCREW 9 SPK S4 SCREW 10 REAR COVER19"[...]

  • Page 40

    19" LCD Color Monitor AOC 919Swa 4 0 12. BOM List Note: The p a rts information listed below are for reference only , and are subject to cha nge without notice. Please go to http://cs.tpv .com.cn/hello1.asp for the latest information. T99LHDDBWKA1ANE Location Part NO. Description Remark 040G 58162435A P/N L ABEL FOR MANUAL PE BAG 041G780061553[...]

  • Page 41

    19" LCD Color Monitor AOC 919Swa 4 1 CN404 033G 3802 9B Y W WAFER CN405 033G 801930F CH JS CONNE CTOR 040G 45762412B CBPC LABEL R438 061G152M33964L RST MOFR 3 .3 OHM +-5% 2WS CN101 088G 35315F XH D-SUB 15PIN VERTICAL CONN WITH SCREW X401 093G 2258B J NXS24.576AC20F-KAB11 CN001 033G3802 6H WAFER 6P RIGHT ANGLE PITCH 2.0 D001 081G 12 1F GH LED 3[...]

  • Page 42

    19" LCD Color Monitor AOC 919Swa 4 2 C423 067G 3051013PB EC 105 ℃ 100uF M 16V 5*11mm C426 067G 3051013PB EC 105 ℃ 100uF M 16V 5*11mm C424 067G 3051013PB EC 105 ℃ 100uF M 16V 5*11mm C427 067G 3051013PB EC 105 ℃ 100uF M 16V 5*11mm C421 067G 3151014KB EC 100uF M 25V 6.3*11 U405 056G 56327A IC AP1117E18LA SOT223-3L ANACHIP U404 056G 563514[...]

  • Page 43

    19" LCD Color Monitor AOC 919Swa 4 3 R421 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W R433 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W R437 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W R439 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W R457 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W R401 061G0402105 RST CHIPR 1MOHM +-5% 1/16W R410 061G0402121 RST CHIP 120R 1/1[...]

  • Page 44

    19" LCD Color Monitor AOC 919Swa 4 4 C413 065G040210412K A CAP CHIP 0402 100nF K 16V X7R C414 065G040210412K A CAP CHIP 0402 100nF K 16V X7R C415 065G040210412K A CAP CHIP 0402 100nF K 16V X7R C416 065G040210412K A CAP CHIP 0402 100nF K 16V X7R C417 065G040210412K A CAP CHIP 0402 100nF K 16V X7R C447 065G0402105 A5 CAP 0402 1UF K 10V X5R C103 [...]

  • Page 45

    19" LCD Color Monitor AOC 919Swa 4 5 Q803 057G 759 2 RK7002FD5T 116 SOT-23 BY ROHM Q805 057G 763905 FET FDS8958A SO-8 Q806 057G 763905 FET FDS8958A SO-8 R846 061G0603000 RST CHIP MAX 0R05 1/10W R849 061G0603000 RST CHIP MAX 0R05 1/10W R926 061G0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R942 061G0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R816 061G06031[...]

  • Page 46

    19" LCD Color Monitor AOC 919Swa 4 6 R829 061G0805682 RST CHIPR 6.8 KOHM +-5% 1/8W RJ802 061G1206000 RST CHIP MAX 0R05 1/4W J802 061G1206000 RST CHIP MAX 0R05 1/4W RJ801 061G1206000 RST CHIP MAX 0R05 1/4W RJ901 061G1206000 RST CHIP MAX 0R05 1/4W RJ805 061G1206000 RST CHIP MAX 0R05 1/4W RJ804 061G1206000 RST CHIP MAX 0R05 1/4W FB902 061G1206000[...]

  • Page 47

    19" LCD Color Monitor AOC 919Swa 4 7 C809 065G080556131G MLCC 0805 560PF G 50V NPO C935 065G1206102 72 CAP CHIP 1206 1000PF K 500V X7R C929 065G1206102 72 CAP CHIP 1206 1000PF K 500V X7R C912 065G1206102 72 CAP CHIP 1206 1000PF K 500V X7R D808 093G 64 42 L DIODE LBAV70LT1G SOT-23 LRC D807 093G 64 42 L DIODE LBAV70LT1G SOT-23 LRC D806 093G 64 4[...]

  • Page 48

    19" LCD Color Monitor AOC 919Swa 4 8 J825 095G 90 23 JUMPER WIRE J824 095G 90 23 JUMPER WIRE J823 095G 90 23 JUMPER WIRE J837 095G 90 23 JUMPER WIRE J912 095G 90 23 JUMPER WIRE J910 095G 90 23 JUMPER WIRE J909 095G 90 23 JUMPER WIRE J908 095G 90 23 JUMPER WIRE J907 095G 90 23 JUMPER WIRE J906 095G 90 23 JUMPER WIRE J905 095G 90 23 JUMPER WIRE [...]