Asus VW198S Service Manual Download Page 2

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19" LCD Color Monitor

ASUS VW198S

Revision List

Version

Release Date

Revision History

TPV Model Name

T97MMGNBPWUSAN

T97MMGNBPWUEAN

A00

Oct.10, 2007

Initial release

T97MMGNTPWUSAZ

Summary of Contents for VW198S

Page 1: ...al Instructions 6 3 2 Control Button 6 3 3 OSD Menu 7 4 Input Output Specification 11 4 1 Input Signal Connector 11 4 2 Power Supply Requirements 11 4 3 Factory Preset Display Modes 12 4 4 Panel Specification 13 5 Block Diagram 15 5 1 Software Flow Chart 15 5 2 Electrical Block Diagram 17 6 Schematic 19 6 1 Main Board 19 6 2 Power Board 23 6 3 Audio Board 25 7 PCB Layout 26 7 1 Main Board 26 7 2 P...

Page 2: ...19 LCD Color Monitor ASUS VW198S 2 Revision List Version Release Date Revision History TPV Model Name T97MMGNBPWUSAN T97MMGNBPWUEAN A00 Oct 10 2007 Initial release T97MMGNTPWUSAZ ...

Page 3: ...characteristics may create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from AOC AOC assumes no liability express or implied arising out of any unauthorized modification of design Servicer assumes all liability FOR PRODUCTS CONTAINING LASER DANGER Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM CAU...

Page 4: ...19 LCD Color Monitor ASUS VW198S 4 1 Monitor Specifications ...

Page 5: ...htness control logic and DDC The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage Monitor Block Diagram AC IN 100V 240V Power board Include adapter inverter Flat Panel and CCFL backlight Main Board RS232 Connector For white balance adjustment in factory mode CCFL Drive Video signal DDC Key Board Audio Board HOST Computer ...

Page 6: ... buttons are located at the front of the panel of the monitor By changing these settings the picture can be adjusted to your personal preferences The power cord should be connected Connect the video cable from the monitor to the video card Press the power button to turn on the monitor the power indicator will light up 3 2 Control Buttons 3 2 1 Key Control ...

Page 7: ...19 LCD Color Monitor ASUS VW198S 7 3 2 2 Key Function 3 3 OSD Menu 3 3 1 How to Reconfigure ...

Page 8: ...19 LCD Color Monitor ASUS VW198S 8 3 3 2 OSD Function Introduction ...

Page 9: ...19 LCD Color Monitor ASUS VW198S 9 ...

Page 10: ...19 LCD Color Monitor ASUS VW198S 10 ...

Page 11: ...n Ground 15 DDC Serial Clock 8 Blue Ground VGA connector layout 1 5 6 10 11 15 4 2 Power Supply Requirements A C Line voltage range 100 V 240 V A C Line frequency range 50 3Hz 60 3Hz Input Voltage transients 90 264 voltage AC for 10 sec 40 Current 1 5A max at 100V 0 8A max at 240 V Peak surge current 60A peak at 240 VAC and cold starting 30A peak at 120VAC and cold starting Leakage current 3 5mA P...

Page 12: ...19 LCD Color Monitor ASUS VW198S 12 4 3 Factory Preset Display Modes ...

Page 13: ...S interface This module supports 1680 x 1050 WSXGA mode and can display 16 7M colors The inverter module for Backlight is not built in Super Wide viewing angle Super High contrast ratio Super fast response time High color saturation WSXGA 1680 x 1050 pixels resolution DE Data Enable only mode LVDS Low Voltage Differential Signaling interface RoHS Compliance 4 4 2 Display Characteristics ...

Page 14: ...19 LCD Color Monitor ASUS VW198S 14 4 4 3 Optical Characteristics 4 4 4 Electrical Characteristics 1 TFT LCD 2 Backlight ...

Page 15: ...19 LCD Color Monitor ASUS VW198S 15 5 Block Diagram 5 1 Software 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 16: ...the LED and set it to green color Scalar initializes 10 In standby mode 11 Update the lifetime of back light 12 Check the analog port are there any signals coming 13 Does the scalar send out an interrupt request 14 Wake up the scalar 15 Are there any signals coming from analog port 16 Display No connection Check Signal Cable message And go into standby mode after the message disappear 17 Program t...

Page 17: ...2 1 Main Board Flash Memory PM25LV010A U402 Panel Interface CN301 SCZ SCK Crystal 14 31818MHZ X201 Keypad Interface CN201 Scalar TSUMU18BWL LF Include MCU ADC OSD U202 D Sub Connector CN101 EEPROM AF24BC02 U101 H sync V sync RGB VGA_SDA VGA_SCL EEPROM AF24BC16 SI U204 ...

Page 18: ...IM EMI filter Start Circuit R904 R932 R933 PWM Control IC Transformer AC input 12V ON OFF Control Feedback Circuit Transformer MOSFET Lamp ON OFF 5V Bridge Rectifier and Filter Feedback Circuit Rectifier diodes CN902 Output Circuit PWM Control IC IC801 Over Voltage ...

Page 19: ...101 RLZ5 6B R132 NC R109 470R 1 16W 5 R118 10K 1 16W 5 VGA_PLUG ZD103 RLZ5 6B RX2P 2 R137 NC ZD104 RLZ5 6B R105 2K2 1 16W 5 DDC2_SDA R121 4K7 1 16W 5 DGND RXCN R110 100R 1 16W 5 R111 56 OHM 1 16W DDC2_SCL 2 VGA_R C113 0 047uF C117 NC C112 0 1uF 16V R136 NC DDC_WP 2 RX0N 2 ZD106 RLZ5 6B DDC1_SCL 2 VGA_G R116 75R 1 16W 5 RX1P U101 M24C02 WMN6TP 1 2 3 4 5 6 7 8 A0 A1 A2 VSS SDA SCL WP VCC DDC2_SDA 2 ...

Page 20: ...BCKM PB7 PA4 LVB0P C303 100uF25V R304 47K 1 16W 5 D LVA0M PA5 1 PA7 CN301 CONN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 AO3401L RXO3 RXE3 3 LVB2P LVACKM G PA 0 9 2 LVB0P LVB3P LVA1P PB 0 9 CMVCC RXO1 LVB0M 2 LVBCKM PB9 LVA2M PB8 C301 0 1uF 16V LVBCKP Q304 NC PB6 LVA1M LVACKP LVB3P LVA0M PB2 R303 NC LVA0P R302 330R 1 8W 5 LVA0P RXO2 RXO0 PA0 RXO1 R301 10K 1 1...

Page 21: ...N CMVCC CMVCC BKLT EN CMVCC R405 10K 1 16W 5 C407 100uF25V Mute DGND 1 2 3 VCC3 3 C406 NC CN401 CONN 1 2 3 4 5 6 7 8 9 on_BACKLIGHT 2 C403 100uF25V Q403 2N3904S RTK PS C402 100uF25V VCC3 3 C_PANEL_INDEX T97MMGDN8WU2AN 3 ASUS VW198S A 4 5 Thursday August 16 2007 715G2698 3 称爹 4 0 POWER G2698 3 X X 13 070816 OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory Electronics Co Ltd ...

Page 22: ... PA 0 9 VCC3 3 1 on_BACKLIGHT 4 PA7 VCC3 3 VCC3 3 CMVCC PA1 MSDA R206 0R05 1 16W R216 56 OHM 1 16W C204 0 1uF 16V C221 22pF C211 0 1uF 16V VCC1 8 4 PB0 VCC3 3 C228 0 1uF 16V RXCN 1 FB203 300OHM VMPLL VCC3 3 DSUB_G 1 WP PB1 R232 10K 1 16W 5 C217 0 1uF 16V C225 0 1uF 16V Mute 4 RX1N 1 MSCL R235 NC LVDS AVDD PA9 CMVCC DSUB_SOG 1 C231 0 1uF 16V PB4 PB8 AVDD Q201 2N3904S RTK PS C207 0 1uF 16V DET_CABLE...

Page 23: ...td Key Component 絬隔瓜絪腹 HS1 HEAT SINK D906 1 2 R924 1K5 1 10W IC903 PC123X2YFZOF 1 2 4 3 C916 0 1uF R920 100 1 4W C910 0 001uF C930 0 1uF C939 1000uF 25V R912 22K 1 1 8W D907 NC R942 1K 1 10W 1 R917 1K 1 8W IC901 TEA1530AT 1 2 3 4 5 6 7 8 Vcc GND PROTECT CTRL SENSE DRIVER HVS DRAIN R930 2 4K 1 1 10W C924 0 01uF 16V R901 680K 1 4W R929 1K 1 8W R933 4K7 1 4W C915 470uF 16V T901 POWER X FMR 4 7 9 ...

Page 24: ...7 2007 715G2538 3 称爹 03 INVERTER G2538 3 X X 12 070927 OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory Electronics Co Ltd Key Component 絬隔瓜絪腹 R824 1K 1 10W 1 R825 22R 1 8W C835 NC R818 1K 1 10W 1 R863 NC F801 0R05 1 4W R854 68K 1 1 10W R831 2 4K 1 1 10W C845 2 2uF 16V D808 BAW56 3 1 2 C B E R828 10K 1 10W R841 68K 1 1 10W C839 1000pF R805 NC R827 3 6K 1 10W C838 1000pF...

Page 25: ... 2 2 Thursday September 13 2007 715G2767 1 称爹 02 AUDIO BOARD G2767 1 X X 1 070913 OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory Electronics Co Ltd Key Component 絬隔瓜絪腹 R602 200KΩ GND C614 1 0uF 50V U601 E TDA7496L 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 GND GND GND INL VAROUT_L VOLUME VAROUT_R NC INR SVR STBY MUTE GND OUTR VS VS OUTL GND GND GND R623 NC R61...

Page 26: ...19 LCD Color Monitor ASUS VW198S 26 7 PCB Layout 7 1 Main Board 715G2698 3 ...

Page 27: ...19 LCD Color Monitor ASUS VW198S 27 ...

Page 28: ...19 LCD Color Monitor ASUS VW198S 28 ...

Page 29: ...19 LCD Color Monitor ASUS VW198S 29 7 2 Power Board 715G2538 3 ...

Page 30: ...19 LCD Color Monitor ASUS VW198S 30 ...

Page 31: ...19 LCD Color Monitor ASUS VW198S 31 7 3 Audio Board 715G2767 1 ...

Page 32: ...19 LCD Color Monitor ASUS VW198S 32 7 4 Key Board 715G2546 2 ...

Page 33: ...S VW198S 33 8 Maintainability 8 1 Equipments and Tools Requirement 1 Voltmeter 2 Oscilloscope 3 Pattern Generator 4 DDC Tool with an IBM Compatible Computer 5 Alignment Tool 6 LCD Color Analyzer 7 Service Manual 8 User Manual ...

Page 34: ...s power key and look if the picture is normal Please reinsert and make sure the AC of 100 240 is normal Reinsert or check the Adapter Inverter section X201 oscillate waveforms are normal Replace U701 or U702 Replace U202 Replace X201 OK OK OK NG NG NG NG Measure U701 PIN2 3 3V Measure U702 PIN2 1 8V ...

Page 35: ...re OK OK NG NG Replace U701 or U702 X201 oscillate waveforms are normal Replace X201 Check if the sync signal from computer is output and video cable Input the sync signal of computer or change Replace U202 NG OK Measure U701 PIN2 3 3V Measure U702 PIN2 1 8V ...

Page 36: ... Check Q403 is broken or CN301 solder Check Correspondent component Replace Panel Check Correspondent component Replace U202 OK OK Replace X201 OK NG NG NG NG Check reset circuit of U202 is normal OK X201 oscillate waveform is normal Measure Q403 base is low level ...

Page 37: ...e of C905 Check bridge rectified circuit and F901 circuit Check start voltage for the pin8 of IC901 Check R904 R932 R933 and Change IC901 NG Check the auxiliary voltage is bigger than 10V and smaller than 20V 1 Check IC901 2 Check R909 D901 circuit OK OK NG Check IC903 IC904 Q901 ZD921 ZD922 D915 D916 OK Check IC901 pin6 PWM wave OK Check IC901 NG NG NG OK NG ...

Page 38: ...ck Interface board NG OK Check IC801 PIN12 12V NG OK Change Q808 Check IC801 PIN10 9 have the output of square wave at short NG OK Change IC801 Check Q802 Q803 PIN5 6 7 8 have the output of square wave at short time NG OK Check Q801 Q804 Q811 Q812 Q802 Q803 Check the output of T801 T802 Check connecter lamp OK NG Change T801 T802 ...

Page 39: ... 39 8 2 3 Key Board OSD is unstable or not working Is Key Pad Board connecting normally Connect Key Pad Board Is Button Switch normally Replace Button Switch Y N N Is Key Pad Board normally Replace Key Pad Board Y N Y Check Main Board ...

Page 40: ...s x 283 20 y 297 20 Y 180cd m2 typ D MEM CHANNEL 10 sRGB color sRGB color temp parameter is x 313 20 y 329 20 Y 150 15cd m2 3 Into Factory mode of ASUS VW198S Press the MENU button pull out the power cord and then plug the power cord Then the factory OSD will be at the left top of the panel 4 Bias adjustment Set the Contrast to 50 Adjust the Brightness to 80 5 Gain adjustment Move cursor to F and ...

Page 41: ... 5 Adjust the GREEN of color1 on factory window until chroma 7120 indicator reached the value G 100 6 Adjust the BLUE of color1 on factory window until chroma 7120 indicator reached the value B 100 7 Repeat above procedure item 4 5 6 until chroma 7120 RGB value meet the tolerance 100 2 D Adjust sRGB color temperature 1 Switch the chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM chan...

Page 42: ...19 LCD Color Monitor ASUS VW198S 42 10 Monitor Exploded View ...

Page 43: ...50MM 0M1G 130 5120 SCREW 0M1G 930 5 47 CR3 SCREW 0M1G1730 6120 SCREW 0M1G1730 6120 SCREW 0M1G1730 6120 SCREW 705GQ715017 MAIN FRAME ASS Y 19 E078 078G 322 9 G SPEAKER 8 OHM 1 5W L 230 MM 43X18MM 0M1G1840 8120 SCREW A15G0216 6 MAIN FRAME 705GQ734091 STAND ASS Y 19 0Q1G1740 10120 SCREW A34G0330ADJ 1B STAND M037 A37G0035 3 HINGE E750L 750GLM90Z1112N PANEL M190Z1 L01 NB CMO A33G0190ADJ 1L CABLE CLAMP ...

Page 44: ... 6W R619 061G 60210352T CFR 10KOHM 5 1 6W R601 061G 60218352T 18KOHM 5 1 6 R603 061G 60218352T 18KOHM 5 1 6 R610 061G 60220352T CFR 20K OHM 5 1 6W R611 061G 60220352T CFR 20K OHM 5 1 6W R602 061G 60220452T 200KOHM 5 1 6W R612 061G 60222452T 220KOHM 5 1 6W C604 064G178J474 0T6951 CL21X 0 47UF 50V 5 C606 064G178J474 0T6951 CL21X 0 47UF 50V 5 C611 065G 444101 5T 100 PF 10 50V Y5P C612 065G 444101 5T ...

Page 45: ... 1A 3 3V SOT 223 U101 056G1133 84 AF24BC02 S1 U204 056G1133 89 IC AF24BC16 SI 16K SOIC 8 U402 056G1133713 IC PM25LV010A 100SCE SOIC 8 Q201 057G 417 12 T KEC 2N3904S RTK PS Q403 057G 417 12 T KEC 2N3904S RTK PS Q202 057G 417 13 T KEC 2N3906S RTK PS Q203 057G 417 13 T KEC 2N3906S RTK PS Q301 057G 417 13 T KEC 2N3906S RTK PS Q302 057G 763 1 A03401 SOT23 BY AOS A1 R201 061G0402000 RST CHIPR 0 OHM 5 1 ...

Page 46: ...2103 RST CHIPR 10 KOHM 5 1 16W R209 061G0402103 RST CHIPR 10 KOHM 5 1 16W R210 061G0402103 RST CHIPR 10 KOHM 5 1 16W R211 061G0402103 RST CHIPR 10 KOHM 5 1 16W R223 061G0402103 RST CHIPR 10 KOHM 5 1 16W R226 061G0402103 RST CHIPR 10 KOHM 5 1 16W R227 061G0402103 RST CHIPR 10 KOHM 5 1 16W R219 061G0402104 RST CHIPR 100 KOHM 5 1 16W R105 061G0402222 RST CHIPR 2 2 KOHM 5 1 16W R106 061G0402222 RST CH...

Page 47: ...02104 15 MLCC 0402 0 1UF K 16V X5R C225 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C226 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C227 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C228 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C229 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C231 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C301 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C302 065G0402104 15 MLCC 0402 0 1UF K 16V X...

Page 48: ...X7R C107 065G0402473 12 CHIP 0 047UF 16V X7R C105 065G0402473 12 CHIP 0 047UF 16V X7R C101 065G0402473 12 CHIP 0 047UF 16V X7R FB301 071G 56K121 M CHIP BEAD FB201 071G 56V301 B CHIP BEAD FCM2012VF 301T07 BULLWILL FB203 071G 56V301 B CHIP BEAD FCM2012VF 301T07 BULLWILL FB204 071G 56V301 B CHIP BEAD FCM2012VF 301T07 BULLWILL FB205 071G 56V301 B CHIP BEAD FCM2012VF 301T07 BULLWILL FB206 071G 56V301 B...

Page 49: ...102 093G 39P599 T MM3Z5V6B 715G2546 2 KEY BOARD PCB PWPC942MU2 POWER BOARD CN801 033G8021 2E F WAFER CN802 033G8021 2E F WAFER CN803 033G8021 2E F WAFER CN804 033G8021 2E F WAFER 040G 45762420A LABEL 25X6MM 051G 6 4503 RTV IC903 056G 139 3A IC PC123Y22FZ0F NR901 061G 58080 WT 8 OHM NCT R908 061G152M104 64 100KOHM 5 2W R914 061G152M228 64 0 22 OHM 5 2W C903 063G107K474 6S CAP X2 0 47UF K 275VAC C81...

Page 50: ...SS Y D906 093G 60218 SB10100FCT AM1G1730 8120 GP SCREW Q90G6274 2 HEAT SINK 705GQ9KA 93002 D905 ASS Y 090G6084 1 HEAT SINK D905 093G 60257 DIODE SB1060FCT ITO 220AB BY PAN JIT 0M1G1730 8120 SCREW IC801 056G 379 22 IC TL494IDR SOIC 16 IC901 056G 379 71 IC TEA1530AT N1 SO 8 PHILIPS Q801 057G 417 4 PMBS3904 PHILIPS SMT 04 Q806 057G 417 4 PMBS3904 PHILIPS SMT 04 Q807 057G 417 4 PMBS3904 PHILIPS SMT 04...

Page 51: ...HIPR 1 MOHM 5 1 10W R801 061G0603150 1F RST CHIPR 1 5 KOHM 1 1 10W R814 061G0603150 1F RST CHIPR 1 5 KOHM 1 1 10W R815 061G0603150 1F RST CHIPR 1 5 KOHM 1 1 10W R816 061G0603150 1F RST CHIPR 1 5 KOHM 1 1 10W R924 061G0603152 RST CHIPR 1 5 KOHM 5 1 10W R811 061G0603240 1F RST CHIPR 2 4 KOHM 1 1 10W R831 061G0603240 1F RST CHIPR 2 4 KOHM 1 1 10W R930 061G0603240 1F RST CHIPR 2 4 KOHM 1 1 10W R940 06...

Page 52: ...T CHIPR 0 OHM 5 1 4W R967 061G1206000 RST CHIPR 0 OHM 5 1 4W JR901 061G1206000 RST CHIPR 0 OHM 5 1 4W JR809 061G1206000 RST CHIPR 0 OHM 5 1 4W JR808 061G1206000 RST CHIPR 0 OHM 5 1 4W JR807 061G1206000 RST CHIPR 0 OHM 5 1 4W JR805 061G1206000 RST CHIPR 0 OHM 5 1 4W JR804 061G1206000 RST CHIPR 0 OHM 5 1 4W JR803 061G1206000 RST CHIPR 0 OHM 5 1 4W JR802 061G1206000 RST CHIPR 0 OHM 5 1 4W JR801 061G1...

Page 53: ...P 2200PF 25V X7R C816 065G0603222 22 CHIP 2200PF 25V X7R C815 065G0603222 22 CHIP 2200PF 25V X7R C841 065G0805102 31 1000PF 50V NPO C838 065G0805102 31 1000PF 50V NPO C840 065G0805102 31 1000PF 50V NPO C839 065G0805102 31 1000PF 50V NPO C910 065G0805102 32 CHIP 1000P 50VX7R 0805 C931 065G0805104 32 CHIP 0 1U 50V X7R C930 065G0805104 32 CHIP 0 1U 50V X7R C916 065G0805104 32 CHIP 0 1U 50V X7R C907 0...

Page 54: ...04 056G 158 12 KIA431A AT P TO 92 C906 065G 2K152 1T6052 1 5NF 2KV Y5P 10 C938 065G 2K152 1T6052 1 5NF 2KV Y5P 10 C908 067G215Y2207KT CAP 105 22UF M 50V KINGNICHI FB901 071G 55 29 FERRITE BEAD F901 084G 55 1W FUSE 4A 250V WICKMANN D901 093G 6038P52T PS102R D900 093G1100 1052T BA159GPT DO 41 CHENMKO 715G2538 3 POWER BOARD PCB Q01G6019 2 SCREW Q07G 8 4 1 COMPOUND PALLET Q40G 19N68016A RATING LABEL Q...

Page 55: ...8 045G 76 28 RN PE BAG FOR MANUAL E089D 089G 17356G553 AUDIO CABLE 1800MM 32F2818011 Q41G780068037B QSG Q70G9002680 2A CD MANUAL 040G 457834 4A GP S N LABEL FOR ID 040G 457842 2B PALLET LABEL 040G 58162435A LABEL 040G 582680 3A PALLET LABEL 040G 582680 4A CARTON LABEL E08907 089G179J30N582 FFC CABLE ...

Page 56: ...N Location Part No Description E089C 089G410A18N IS POWER CORD WALL OUT FOR UK 32E1818020 Diversity of T97MMGNTPWUSAZ Compared with T97MMGNBPWUSAN Location Part No Description E08901 089G402A18N IS POWER CORD 32E1818015 Q40G000268038A ZBD SPLENDID LABEL Q41G780068029A TW WARRANTY CARD ZBD 040G 582680 1A CARTON LABEL ...

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