Asus VW171S Service Manual Download | Manualshive

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17" LCD Color Monitor ASUS VW171S

36

(3). White screen

White screen

Check Q301 and Q302 are

broken or CN301 is solder?

Check Correspondent
component.

Check Correspondent
component.

OK

OK

Replace X201

NG

NG

Check reset circuit of

X201 oscillate
waveform is normal

Measure Q301 base

is low level?

http://www.wjel.net

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Summary of Contents for VW171S

Page 1: ...ns 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 16 5 1 Software Flow Chart 16 5 2 Electrical Block Diagram 18 6 Schematic 20 6 1 Main Board 20 6 2 Power Board 24 6 3 Audio Board 26 7 PCB Layout 27 7 1 Main Board 27 7 2 Power Board 30...

Page 2: ...71S 2 Revision List Version Release Date Revision History TPV Model Name A00 Jul 27 2007 Initial release T77HMRDD8WUSAN A01 Oct 22 2007 Add new BOM in Item12 T77GMRHT8WUSAN T77HMRDD8WUSAZ T77HMRDT8WUSAN h t t p w w w w j e l n e t ...

Page 3: ...s 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 CAUTION Use of co...

Page 4: ...17 LCD Color Monitor ASUS VW171S 4 1 Monitor Specifications h t t p w w w w j e l n e t ...

Page 5: ... 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 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 Monitor Block Diagram Key Board HOST Computer Audio Board h t t p w w w w j e...

Page 6: ...ocated 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 h t t p w w w w j e l n e t ...

Page 7: ...17 LCD Color Monitor ASUS VW171S 7 3 2 2 Key Function 3 3 OSD Menu 3 3 1 How to Reconfigure h t t p w w w w j e l n e t ...

Page 8: ...17 LCD Color Monitor ASUS VW171S 8 3 3 2 OSD Function Introduction h t t p w w w w j e l n e t ...

Page 9: ...17 LCD Color Monitor ASUS VW171S 9 h t t p w w w w j e l n e t ...

Page 10: ...17 LCD Color Monitor ASUS VW171S 10 h t t p w w w w j e l n e t ...

Page 11: ...C 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 Power line surg...

Page 12: ...17 LCD Color Monitor ASUS VW171S 12 4 3 Factory Preset Display Modes h t t p w w w w j e l n e t ...

Page 13: ...Specification 4 4 1 General Features _ 17 0 WXGA for Monitor application _ High Resolution 1440 900 _ 2 ch LVDS interface system _ LCD Timing Controller _ Wide Viewing Angle _ RoHS compliance 4 4 2 General Specification h t t p w w w w j e l n e t ...

Page 14: ...17 LCD Color Monitor ASUS VW171S 14 4 4 3 Optical Characteristics h t t p w w w w j e l n e t ...

Page 15: ...17 LCD Color Monitor ASUS VW171S 15 4 4 4 Electrical Characteristics 1 TFT LCD 2 Backlight h t t p w w w w j e l n e t ...

Page 16: ...17 LCD Color Monitor ASUS VW171S 16 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 h t t p w w w w j e l n e t ...

Page 17: ...t 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 the scalar to b...

Page 18: ... 2 1 Main Board Key Control Interface CN201 Flash Memory SST25LF020A U203 EEPROM M24C02 U703 H sync V sync RGB SDA _VGA SCL _VGA LCD Interface CN301 Scalar TSUM16AWR LF 1 Include MCU ADC OSD U401 Crystal 14 318MHZ X201 D Sub Connector CN101 h t t p w w w w j e l n e t ...

Page 19: ...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 h t t p w w w w j e l n e t ...

Page 20: ...HM 1 16W C113 0 047uF DET_CABLE 2 VGA_R DDC1_SCL C104 5pF 50V C108 5pF 50V C414 0 22uF16V VGA_R C111 5pF 50V D104 BAV99 3 1 2 DSUB_H 2 DSUB_B 2 R111 100R 1 16W 5 DSUB_R 2 FB102 BEAD 1 2 DGND DDC1_SDA VGA_G DSUB_5V VGA_PLUG ZD105 UDZS5 6B 1 2 R101 0R05 1 16W C117 0 1uF 16V C110 0 047uF R117 100R 1 16W 5 C109 0 047uF VGA_PLUG ZD106 UDZS5 6B 1 2 DSUB_V 2 C105 0 047uF R108 100R 1 16W 5 DSUB_G 2 ZD102 ...

Page 21: ...ate Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory Electronics Co Ltd Key Component 絬隔瓜絪腹 PA6 TSUM16AWR LF 1 13 10 11 8 12 9 7 16 17 4 15 14 21 23 22 24 27 56 1 2 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 34 33 5 6 32 31 52 30 18 19 62 20 28 55 58 59 60 61 63 64 25 26 54 51 53 29 57 3 RIN0P GIN0P SOGIN0 BIN0P RIN0M GIN0M BIN0M HSYNC0 VSYNC0 REXT REFP REFM SDO SCK SCZ SDI PWM2 GPIO_P24 ...

Page 22: ... LVBCKM PB4 LVA1P LVB3M PB2 LVB3M PB4 PB5 LVA2M PPWR_ON 2 PA6 PA7 PB 0 9 LVB1P PPWR_ON R301 10K 1 16W 5 LVA0M PB8 S LVB0P LVB0M R304 100K 1 16W 5 LVA0M PANEL_VCC PA5 LVA3P PB7 LVBCKP PB3 Q301 PMBS3906 PB 0 9 2 PA4 PB2 PA8 PB9 PB0 R302 330R 1 8W 5 D LVB2M PB3 PB6 C301 0 1uF 16V PB0 LVA3M 2 CMVCC LVB2P 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 PA4 PB...

Page 23: ...N3904S RTK PS R411 10K 1 16W 5 BKLT VBRI VCC3 3 R404 4K7 1 16W 5 VCC3 3 D106 BAT54C CMVCC MVCC VCC3 3 PANEL_ID Volume C402 100uF25V Volume ASUS VW171S 1D ASUS VW171S B 4 5 Thursday June 28 2007 715G2564 1D 称爹 4 Power 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 C403 100uF25V R410 10K 1 16W 5 Q405 2N3904S RTK PS VCC3 3 on_BACKLI...

Page 24: ...12 22K 1 1 8W R910 10R 1 4W ZD921 RLZ13B 1 2 FG C928 0 0012uF R916 1K5 1 8W F901 4A 250V C911 1uF 25V C921 0 0047UF 400V D903 IN4148W C912 0 001uF C918 680uF 25V L904 1 1uH T901 POWER X FMR 4 7 9 5 6 4 6 11 10 8 12 1 3 R921 1K 1 4W C915 470uF16V 715G2664 1 R919 100 1 4W FG C901 1000pF 5V R929 1K 1 4W C908 22uF 50V R903 680K 1 4W D901 PS102R ZD901 NC 1 2 L902 L 1 4 2 3 C906 1500pF2KV R907 NC JR901 ...

Page 25: ...W R803 1M 1 10W 5 C803 1000pF TPV Top victory Electronics Co ltd C802 470UF 25V R806 3 6K 1 1 10W C820 220pF R835 1M 1 10W 5 Q808 PDTA144WK C819 0 01uF R828 10K 1 10W R805 10K 1 10W C821 0 1uF 25V R809 3 6K 1 1 10W R821 1K 1 10W 1 C835 NC C817 NC R825 22R 1 8W T801 POWER X FMR 1 4 8 3 7 9 6 2 5 R822 1K 1 10W 1 12V C807 0 1uF 25V Q811 PMBS3904 C846 NC DIM R817 10K 1 10W D814 IN4148W C823 0 01uF Q80...

Page 26: ... C214 1 0uF 50V GND C201 470uF 25V C204 0 47uF 50V R223 NC GND 12V GND GND 12V STANDBY C203 0 1uF R210 20KΩ GND T77HMRDD8WUSAN B ASUS VW171S A 2 2 Thursday June 28 2007 715G2767 1 02 AUDIO BOARD 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 D201 1N4148 GND CN202 CONN 1 2 3 4 5 6 CN201 PHONEJACK 1 2 3 4 5 VOLUME R222 10K OHM R207...

Page 27: ...17 LCD Color Monitor ASUS VW171S 27 7 PCB Layout 7 1 Main Board 715G2564 1D h t t p w w w w j e l n e t ...

Page 28: ...17 LCD Color Monitor ASUS VW171S 28 h t t p w w w w j e l n e t ...

Page 29: ...17 LCD Color Monitor ASUS VW171S 29 h t t p w w w w j e l n e t ...

Page 30: ...17 LCD Color Monitor ASUS VW171S 30 7 2 Power Board 715G2664 1 h t t p w w w w j e l n e t ...

Page 31: ...17 LCD Color Monitor ASUS VW171S 31 h t t p w w w w j e l n e t ...

Page 32: ...17 LCD Color Monitor ASUS VW171S 32 7 3 Audio Board 715G2767 1 7 4 Key Board 715G2546 2 h t t p w w w w j e l n e t ...

Page 33: ...8 Maintainability 8 1 Equipments and Tools Requirement 1 Voltmeter 2 Oscilloscope 3 Pattern Generator 4 DDC Tool with and Compatible Computer 5 Alignment Tool 6 LCD Color Analyzer 7 Service Manual 8 User Manual h t t p w w w w j e l n e t ...

Page 34: ...ey 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 U702 U701 Replace U401 Replace X201 OK OK OK NG NG NG NG U702 PIN2 1 8V Measure U701 PIN2 3 3V h t t p w w w w j e l n e t ...

Page 35: ... Measure U702 PIN2 1 8V Measure U701 PIN2 3 3V 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 U401 NG OK h t t p w w w w j e l n e t ...

Page 36: ... are broken or CN301 is solder Check Correspondent component Replace Panel Check Correspondent component Replace U401 OK OK Replace X201 OK NG NG NG NG Check reset circuit of U401 is normal OK X201 oscillate waveform is normal Measure Q301 base is low level h t t p w w w w j e l n e t ...

Page 37: ...er current protect circuit Check CN902 pin4 5 12V Check AC line volt 110V or 220V Check AC input Check the voltage of C905 Check start voltage for the pin8 of IC901 NG Check the auxiliary voltage is bigger than 10V and smaller than 20V OK OK NG Check Q901 FB901 D900 ZD921 ZD922 D915 D916 IC903 and T901 OK Check IC901 pin6 PWM wave OK Check IC901 NG NG NG OK NG h t t p w w w w j e l n e t ...

Page 38: ...ace board NG OK Check IC801 PIN12 12V NG OK Change Q808 Q805 Check IC801 PIN10 9 have the output of square wave at short NG OK Change IC801 Check Q802 PIN5 6 7 8 have the output of square wave at short time NG OK Check Q801 Q804 Q811 Q812 and Q802 Check the output of T801 Check connecter lamp OK NG Change T801 h t t p w w w w j e l n e t ...

Page 39: ...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 h t t p w w w w j e l n e t ...

Page 40: ...lor temp parameter is x 313 20 y 329 20 Y 150 15cd m2 3 Into Factory mode of ASUS VW171S 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 press MENU key A Adjust Warm 6500K color temperature 1 Switch the chro...

Page 41: ... 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 channel to Channel 10 with up or down arrow on chroma 7120 3 The LCD ...

Page 42: ...17 LCD Color Monitor ASUS VW171S 42 10 Monitor Exploded View h t t p w w w w j e l n e t ...

Page 43: ...18mm VECO 089G 17356C554 AUDIO CABLE 089G 728GAA DB D SUB 089G179J30N504 ffc cable 089G414A18N LS POWER CORD 095G8014 8D 69 HARNESS 8P 6P 390mm 0M1G 130 5120 SCREW 0M1G 930 6 47 CR3 SCREW 0M1G1730 6120 SCREW 0M1G1730 6120 SCREW 0M1G1730 6120 SCREW 0M1G1740 10125 screw 705GQ734261 STAND ASS Y 17 0Q1G1740 10120 SCREW A34G0330ADJ 1B STAND A37G0035 1 HINGE E750L 750GLH70GWB12N PANEL HSD170MGW1 B00 HSD...

Page 44: ...0210352T CFR 10KOHM 5 1 6W R203 061G 60218352T 18KOHM 5 1 6 R201 061G 60218352T 18KOHM 5 1 6 R210 061G 60220352T CFR 20K OHM 5 1 6W R211 061G 60220352T CFR 20K OHM 5 1 6W R202 061G 60220452T 200KOHM 5 1 6W R212 061G 60222452T 220KOHM 5 1 6W C204 064G178J474 0T6951 CL21X 0 47uF 50V 5 C206 064G178J474 0T6951 CL21X 0 47uF 50V 5 C211 065G 444101 5T 100 PF 10 50V Y5P C212 065G 444101 5T 100 PF 10 50V Y...

Page 45: ...MBS3906 PHILIPS SMT 06 Q202 057G 417 6 PMBS3906 PHILIPS SMT 06 Q403 057G 417 12 T KEC 2N3904S RTK PS Q405 057G 417 12 T KEC 2N3904S RTK PS Q302 057G 763 1 A03401 SOT23 BY AOS A1 R101 061G0402000 RST CHIPR 0 OHM 5 1 16W R201 061G0402000 RST CHIPR 0 OHM 5 1 16W R214 061G0402101 RST CHIPR 100 OHM 5 1 16W R213 061G0402101 RST CHIPR 100 OHM 5 1 16W R207 061G0402101 RST CHIPR 100 OHM 5 1 16W R117 061G04...

Page 46: ... RST CHIPR 10 KOHM 5 1 16W R301 061G0402103 RST CHIPR 10 KOHM 5 1 16W R219 061G0402104 RST CHIPR 100 KOHM 5 1 16W R304 061G0402104 RST CHIPR 100 KOHM 5 1 16W R211 061G0402203 RST CHIP 20K 1 16W 5 R209 061G0402203 RST CHIP 20K 1 16W 5 R105 061G0402222 RST CHIPR 2 2 KOHM 5 1 16W R106 061G0402222 RST CHIPR 2 2 KOHM 5 1 16W R109 061G0402390 0F RST CHIP 390R 1 16W 1 R204 061G0402390 0F RST CHIP 390R 1 ...

Page 47: ...2104 15 MLCC 0402 0 1UF K 16V X5R C225 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C219 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C212 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C211 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C102 065G0402220 31 CHIP 22PF 50V NPO C103 065G0402220 31 CHIP 22PF 50V NPO C221 065G0402220 31 CHIP 22PF 50V NPO C222 065G0402220 31 CHIP 22PF 50V NPO C218 065G0402224 17 CAP CER 0 ...

Page 48: ...03 056G1133 34 M24C02 WMN6TP C414 065G0402224 17 CAP CER 0 22UF 20 80 KEPC7QAA6 KEY BOARD CN101 033G8032 8D WAFER 1 25MM R102 061G0603000 RST CHIPR 0 OHM 5 1 10W R105 061G0603000 RST CHIPR 0 OHM 5 1 10W R108 061G0603000 RST CHIPR 0 OHM 5 1 10W R103 061G0603102 RST CHIP 1K 1 10W 5 R106 061G0603102 RST CHIP 1K 1 10W 5 C101 065G0603104 37 CHIP 0 1UF 50V Y5V C102 065G0603104 37 CHIP 0 1UF 50V Y5V C103...

Page 49: ... 067G215S1024KV EC 105 CAP 1000UF M 25V C915 067G215S4713KV EC 105 CAP 470UF M 16V L902 073G 174 65 LS LINE FILTER BY LISHIN L901 073G 174 76 YS CHOKE COIL L903 073G 253191 L CHOKE COIL 1 1uH CC 007802 L904 073G 253191 L CHOKE COIL 1 1uH CC 007802 T901 080GL17T 42 N X FMR 510uH YUVA 769 T801 080GL19T 24 YS X FMR 1 12H YS04170127 CN901 087G 501 37 S AC INLET ST 01DG B2K K BD901 093G 50460510 2KBP08...

Page 50: ...1G0603100 2F RST CHIPR 10 KOHM 1 1 10W R811 061G0603100 2F RST CHIPR 10 KOHM 1 1 10W R817 061G0603100 2F RST CHIPR 10 KOHM 1 1 10W R828 061G0603100 2F RST CHIPR 10 KOHM 1 1 10W R832 061G0603100 2F RST CHIPR 10 KOHM 1 1 10W R926 061G0603100 2F RST CHIPR 10 KOHM 1 1 10W R803 061G0603105 RST CHIPR 1 MOHM 5 1 10W R835 061G0603105 RST CHIPR 1 MOHM 5 1 10W R862 061G0603105 RST CHIPR 1 MOHM 5 1 10W R814 ...

Page 51: ...R 220 KOHM 5 1 8W R810 061G0805510 2F RST CHIPR 51 KOHM 1 1 8W R931 061G0805822 RST CHIPR 8 2 KOHM 5 1 8W F801 061G1206000 RST CHIPR 0 OHM 5 1 4W F902 061G1206000 RST CHIPR 0 OHM 5 1 4W R967 061G1206000 RST CHIPR 0 OHM 5 1 4W JR901 061G1206000 RST CHIPR 0 OHM 5 1 4W JR801 061G1206000 RST CHIPR 0 OHM 5 1 4W JR802 061G1206000 RST CHIPR 0 OHM 5 1 4W R910 061G1206100 RST CHIP 10R 1 4W 5 R909 061G12061...

Page 52: ...102 31 1000PF 50V NPO C824 065G0805104 32 CHIP 0 1U 50V X7R C907 065G0805104 32 CHIP 0 1U 50V X7R C916 065G0805104 32 CHIP 0 1U 50V X7R C930 065G0805104 32 CHIP 0 1U 50V X7R C931 065G0805104 32 CHIP 0 1U 50V X7R C822 065G0805105 22 CHIP 1UF 25V X7R 0805 C911 065G0805105 22 CHIP 1UF 25V X7R 0805 C928 065G0805122 31 CHIP CAP 0805 1200PF J 50V NPO C820 065G0805221 31 220PF 50V NPO C909 065G0805224 32...

Page 53: ... BOARD PCB IC904 056G 158 7 AP431V TO 92BY ATC Q01G6019 2 SCREW Q07G 7 T197 COMPOUND PALLET Q40G 17N68025A RATING LABEL Q40G000268013A TRY ME LABEL Q40G000268014A TCO 03 LABEL Q40G000268031A SPLENDID LABEL Q41G780068024A china warranty card Q44G6002123 93 PAPER BOARD Q44G6002CP214A PAPER CAP Q44G7067101 EPS L Q44G7067201 EPS R Q44G7067680 2A CARTON Q45G 76 28V13 R pe bag Q45G 88607 25 PE BAG FOR B...

Page 54: ...01 MAINFRAME CBPC7GMRU1Q1 MAIN BOARD Q40G 17N68026A RATING LABEL Q40G000268031B SPLENDID LABEL Q41G780068026B TW WARRANTY CARD NON ZBD Q44G7067680 3B CARTON 041G 68615 4B TCO 99 CARD Diversity of T77HMRDT8WUSAN Compared with T77HMRDD8WUSAN Location Location Location 089G402A18N LS POWER CORD Q40G000268031B SPLENDID LABEL Q41G780068026B TW WARRANTY CARD NON ZBD Q44G7067680 1B CARTON 040G 582680 1A ...

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