Asus VK222U Service Manual
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Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 34 7.3 Audio Board 715G2767-1 http://www.wjel.net
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 68 IC801 056G 379 22 IC TL494IDR SOIC-16 IC901 056G 379 71 IC TEA1530AT/N2 SO-8 NXP Q801 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q806 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q807 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q811 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q902 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q812 057G 417 6 PMBS3906/PHILIPS-SMT(06) Q804 057G 417 6 PMBS3906/PHILIPS-SMT(06) Q809 057G 759 2 RK7002 Q810 057G 759 2 RK7002 Q808 057
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 48 C612 065G 444101 5T 100 PF 10% 50V Y5P C603 065G 450104 7T 0.1UF +80-20% 50V Y5V C609 067G215Y1097NT EC 1.0UF 50V KY50VB1M-TP5 5*11MM C613 067G215Y1097NT EC 1.0UF 50V KY50VB1M-TP5 5*11MM C614 067G215Y1097NT EC 1.0UF 50V KY50VB1M-TP5 5*11MM C610 067G215Y1097NT EC 1.0UF 50V KY50VB1M-TP5 5*11MM ZD603 093G 39 7752T HZ5C1-E D601 093G 64 1152T 1N4148 D602 093G
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 40 8.2.2 Power/Inverter Board 1.) No power Check CN902 pin4, 5 = 12V Check AC line volt 110V or 220V Check AC input Check the voltage 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 t
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 5 2. LCD Monitor Description The LCD monitor will contain a main board, an audio board, a power board and a key board which house the flat panel control logic, brightness 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. Inverter Circuit AC in LVDS wire + 5V D-SUB in Key Board B/L control Audio Board A udio Control A udio in +12V Speakers USB Scaler Board 1.3M
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 31 7. PCB Layout 7.1 Main Board 715G2670-1-2 http://www.wjel.net
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 55 Q805 057G 760 5B PDTC144WK SOT346 Q802 057G 763 14 AM9945N Q803 057G 763 14 AM9945N R809 061G0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R812 061G0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R818 061G0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R821 061G0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R822 061G0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R824 061G0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R826 061G0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R925 061G060
22" LCD Color Monitor ASUS VK222U/S 41 2.) W / LED, No Backlight Check CN902 pin4, 5 = 12V NG OK Check adapter or MB Check ON/OFF signal
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 69 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 061G0603330 2F RST CHIPR 33 KOHM +-1% 1/10W R927 061G0603360 1F RST CHIPR 3.6 KOHM +-1% 1/10W R827 061G0603362 RST CHIPR 3.6 KOHM +-5% 1/10W R823 061G0603362 RST CHIPR 3.6 KOHM +-5% 1/10W R819 061G0603362 RST CHIPR 3.6 KOHM +-5% 1/10W R820 061G0603470 2F RST CHIPR 47 KOHM +-1% 1/10W R803 061G0603564 RST CHIPR 560 KOHM +-5% 1/10W R806 061G0603680
22" LCD Color Monitor ASUS VK222U/S 73 12. Different Parts List for VK222U Diversity of TC72MPFCW3USDI Compared with TC72MPFKW3USDI Location Part No. for TPV Description 089G404A18N LS POWER CORD 089G410A18N LS POWER CORD 089G412A18N
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 59 CN002 088G 351 2B TN USB CONN R007 061G0603000 RST CHIPR 0 OHM +-5% 1/10W R006 061G0603000 RST CHIPR 0 OHM +-5% 1/10W C007 065G0603104 37 CHIP 0.1UF 50V/Y5V C006 065G0603104 37 CHIP 0.1UF 50V/Y5V C008 065G1206106 17 MLCC 10 UF Z 16V Y5V FB001 071G 56K121 M CHIP BEAD ZD005 093G 64 49 SU DIODE ESD EGA 10603V05A1-B INPAQ ZD004 093G 64 49 SU DIODE ESD
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 28 6.2 Power Board 715G2538-4 + C922 NC HS1 HEAT SINK(D906) 1 2 D900 PR1007R R906 NC PWPC7C42CQD3 1 22'LCD B 23Friday , December 07, 2007 715G2538 4 < 称爹 > 02.POWER G2538-3-X-X-21-071207 OEM MOD EL Size Rev Date Sheet of TPV MOD EL PCB NAME 称爹 T P V ( Top Victory Electronics Co . , Ltd. ) Key Component 絬 隔 瓜 絪 腹 +12V R914 0.22 2W R903 680K 1/4W ZD 921 RLZ16B ! F902 0
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 39 (3). White screen White screen Check Q411 and Q412 are broken or CN407 solder? Check Correspondent com p onent. Re p lace Panel Check Correspondent com p onent. Replace U401 OK OK Replace X401 OK NG NG NG NG Check reset circuit of U401 is normal OK X401 oscillate waveform is normal Measure Q411 base is low level? http://www.wjel.net
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 65 C416 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C419 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C420 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C422 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C426 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C427 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C428 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C429 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C430 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C439 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C405 065G0402104 15 MLCC 0402 0.1UF
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 46 11. BOM List for VK222U TC72MPFKW3USDI Location Part No. Description 017G WCM 3 C WEBCAM MODULE CKF714221005040L 019G6014 1 TIE FOR STRIP 040G 581 26704 SHIPPING LABEL 040G 58160811A GREEN DOT LABEL 040G 581680 1A WARRANTY LABEL 041G 68508 A CONTROL CARD 044G9003220 CORNER PAPER 044GH600 1 HANDLE 2
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 4 1. Monitor Specifications Driving system TFT Color LCD Size 22" Pixel pitch 0.282mm( H )x 0.282mm( V ) Response time (type) 5ms Viewable angle 170˚ (H) 160˚ (V) LCD Panel Video R,G,B Analog Interface Sync. Type H/V TTL H-Frequency 30kHz – 82kHz Input V-Frequency 56-76 Hz ON Mode ≤50W Power Consumption OFF Mode ≤1W Webcam Built-in USB2.0 1.3M Display Color 16.7M Dot Clock 160MHz Contrast Ratio 1000:1 White Luminunce 210cd/m 2 Max. Resolution 1680 x 1050 Plug & Play VESA DDC2B TM Power Source 100~240VA
22" LCD Color Monitor ASUS VK222U/S 43 9. White- Balance, Luminance Adjustment Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment. Before started adjust white balance , please set the Chroma-7120 MEM Channel 3 to Warm (6500K) c
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 61 A34G0572ADJ 5B REAR COVER(L22WA-8ASUS-1) Q12G6300 46 SCREW CAP VESA 705GQ834009 22"LCD BEZEL ASS'Y A33G0322 1 1C LENS A33G0323 AS 1L FUNCTION KEY A34G0570ADJB1B 30 BEZEL(L22WA-8ASUS-1) A34G0573 AS 1B STRIP 750GLVC0KZ131N PANEL TPM220Z1-PS3 C1A FQ TPV A15G0351101 HINGE BKT A15G0352101 USB SHIELDING AM1G1740 10125 SCREW AUPC7QU6
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 14 4. Input/Output Specification 4.1 Input Signal Connector Analog connectors Pin No. Description Pin No. Description 1. Red Video 9. +5V 2. Green Video 10. Logic Ground 3. Blue Video 11. Monitor Ground 4. Monitor Ground 12. DDC-Serial Data 5. DDC-Return 13. H-Sync 6. Red Ground 14. V-Sync 7. Green Ground 15. DDC-Serial Clock 8. Blue Ground VGA connector layout 15 6 10 11 15 DVI connectors (only for VK222U) Pin No. Description Pin No. Description Pin No. Description 1. RX2- 9. R X1- 17. RX0- 2. RX2+ 10. RX1+
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 2 Revision List Version Release Date Revision History TPV Model Name TC72MPFKW3USDI TC72MPFCW3USDI TC72MPFBW3USAI TC72MPFTW3USAQ A00 Jan.23, 2008 Initial release TC72MPFBW3UEAI http://www.wjel.net
22" LCD Color Monitor ASUS VK222U/S 64 R712 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R444 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R433 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R423 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R422 061G0402472 RST CHIPR 4.7 KOHM +-5% 1
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 67 R908 061G152M104 64 100KOHM 5% 2W R914 061G152M228 64 0.22 OHM 5% 2W C903 063G107K474 6S CAP X2 0.47UF K 275VAC C801 065G 6J5096ET CAP CER 5PF J 6KV C811 065G 6J5096ET CAP CER 5PF J 6KV C902 065G305M1022BP Y2 1000PF M 250VAC Y5P C901 065G305M1022BP Y2 1000PF M 250VAC Y5P C921 065G306M4722BP 4700PF +-20% 400VAC C803 067G215D4714KV E.C 105℃ CAP 470UF M 25V ED SERIES C802 067G215D4714KV E.C 105℃ CAP 470UF M 25V ED SERIES C918 067G215D6814KV CAP 105℃
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 26 C401 0.1uF/16V MWP R427 100R 1/16W 5% GIN3 PB[6..11] 5 +5V R474 3.9K OHM 1% 1/16W C402 0.1uF/16V PA18 D427 NC R418 100R 1/16W 5% HSYNC3 ESP 5 PB[18..23] 5 MSC L C412 0.1uF/16V R415 10K 1/16W 5% VCC1.82 PB13 G-3 CN403 CONN 1 2 3 4 5 6 Add R431 - Max 20071003 LED_A R422 4K7 1/16W 5% DDC_WP 3 AVDD_3.3 PA8 C431 NC C414 0.1uF/16V DDCD_SCL3 GPO1 PB20 R490 10K 1/16W 5% PB11 PA[8..13] PA12 R408 10K 1/16W 5% R433 4K7 1/16W 5% VCC3.3 PB[6..11] RIN3 CLK+3 VCC1.8 VSYN C3 VCC3.3 G
22" LCD Color Monitor ASUS VK222U/S 19 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 http://www.wjel.net
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 36 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. http://www.wjel.net
Asus VK222U, 22" LCD Color Monitor ASUS VK222U/S 6 3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control 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 ligh
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