User manual ASUS VW224UVW224S SERVICE MANUAL

[. . . ] Service Manual ASUS VW224U&VW224S LCD Monitor Service Manual Model: ASUS VW224U&VW224S SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, D 1 Service Manual ASUS VW224U&VW224S Index Revision Lists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Important Safety Notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. Monitor Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. [. . . ] PANEL INTERFACE Friday , May 23, 2008 Date 27 Service Manual 5. 2 Power Board 715G2538-1-ACE 100 1/4W R918 ASUS VW224U&VW224S 1K 1/4W 1K 1/4W 1K 1/4W 100 1/4W R919 100 1/4W R920 C912 0. 001uF C917 680uF25V 3 D906 SP10100 R935 100 1/4W 3 C929 0. 001uF 1 D905 SB1060FCT L903 1. 1uH + C915 470uF16V C916 0. 1uF + + L904 1. 1uH R923 R921 C918 680uF25V + R922 R928 1K 1/4W ZD902 RLZ16B R929 1K 1/8W 2 F902 0R05 1/4W +14V T901 100K 2W 4 9 1 C922 NC 2 ZD901 NC BD901 KBP208G 3 C938 1500pF 2KV + C905 120uF/450V R908 1 Q902 PMBS3904 C910 0. 001uF R936 NC 1 R904 4K7 1/4W R905 NC C906 1500pF 2KV 5 7 2 + R932 4K7 1/4W R906 NC R909 10R 1/4W D900 PR1007R - 6 4 11 10 R961 100 1/4W R967 0R05 1/4W +5V ! C907 0. 1uF 4 VCC D901 PS102R + C904 0. 22uF/275V 6 1 1 R962 100 1/4W 8 C908 22uF/50V 2 R933 4K7 1/4W 8 7 6 5 R907 NC FB901 BEAD D903 BAW56DIODES 3 12 POWER X'FMR D907 NC + R924 C939 1000uF25V 1K5 1/10W R940 33K 1/10W C902 0. 001uF/250V ! C901 0. 001uF/250V 1 2 3 4 Vcc DRAIN GND HVS PROTECT DRIVER CTRL SENSE IC901 TEA1530AT 2 2 FG C911 0. 22uF/25V 1 L901 2 R915 220K 1/8W R910 R938 10R 1/4W R917 10K 1/8W 1K 1/8W R912 22K 1% 1/8W Q901 STP10NK70ZFP ! 2 ZD921 RLZ16B IC903 PC123X2Y FZOF R925 1K 1/10W 1% 1 1 ZD922 RLZ5. 1B R927 3. 6K 1% 1/10W 4 3 2 1 C924 0. 1uF/25V D915 LL4148WP D916 LL4148WP 4 26mH 3 ! R911 1K 1/8W R913 NC C909 0. 22uF/50V R914 0. 22 2W IC904 KIA431A-AT/P R926 3. 6K 1% 1/10W R942 1K 1/10W 1% R916 4K7 1/8W R930 2. 4K 1% 1/10W R931 8K2 1/8W C928 0. 0012uF C921 0. 0047UF/400V 9 8 7 6 5 4 3 2 1 C903 0. 47uF/275V R903 510K 1/4W R902 R901 510K 1/4W 510K 1/4W +5V +12V HS1 HEAT SINK(D906) 1 2 1 2 HS4 090G6276 1 CN902 WIRE HARNESS C931 0. 1uF C930 0. 1uF t NR901 NTCR VAR901 NC 4. 0A/250V F901 FUSE 3 1 2 HS3 HEAT SINK(Q901) 1 2 GND1 GND DIM ! ON/OFF FG 1 FG 2 TPV CN901 SOCKET ( Top Victory Electronics Co . ) OEM MODEL 20/22'LCD TPV MODEL PCB NAME Sheet PWPC8C42MQF1 715G2538 1 ACE 2 of 3 Size Rev B 4 <> Key Component G2538-4-X-X-35-080716 02. POWER Wednesday , July 16, 2008 Date 28 Service Manual R855 15 1/4W C839 1500pF T801 POWER X'FMR 1 8 E 3 C B 4 3 + C802 C824 470UF/25V 0. 1uF Q802 P5506 4 R839 Q804 PMBS3906 1 0 1/8W R823 3. 6K 1/8W R857 C840 15 1/4W 1500pF 1 T802 POWER X'FMR 8 3 2 3 2 1 G S G S D D D D 5 6 7 8 C838 1500pF 2 D805 BAW56 1 R817 10K 1/10W ASUS VW224U&VW224S 2 1 R821 1K 1/10W 1% 2 C819 0. 0022uF C801 10pF/6KV 9 R801 1K 1/10W 1% 3 1 D801 BAV99 CN801 CONN F801 0R05 1/4W +12V 3. 6K 1/10W R819 Q801 PMBS3904 R804 100 1/8W R856 15 1/4W 7 Q805 PDTC144WK ON/OFF C807 0. 1uF/25V Q808 PDTA144WK 2 1 R828 10K 1/10W R822 1K 1/10W 1% 2 C823 0. 0022uF 3 1 R814 1K 1/10W 1% 4 3 C811 10pF/6KV 9 E 3 C B 2 1 R833 10K 1/10W R809 1K 1/10W 1% 2 C815 0. 0022uF 3 1 R815 1K 1/10W 1% D803 BAV99 CN803 CONN D802 BAV99 CN802 CONN Q811 PMBS3904 R850 Q812 PMBS3906 1 0 1/8W 2 + C803 470UF/25V C805 0. 1uF R858 15 1/4W 7 2 D808 BAW56 1 DIM 4 R827 01/10W 3 2 1 Q803 P5506 G S G S D D D D 3 5 6 7 8 C841 1500pF Q806 PMBS3904 R853 68K 1% 1/10W 2 1 R834 10K 1/10W R812 1K 1/10W 1% 2 C816 0. 0022uF 3 1 R816 1K 1/10W 1% D804 BAV99 CN804 CONN C835 NC D817 LL4148WP R808 10K 1/10W R813 10K 1/10W 1% Q810 RK7002 R811 2. 7K 1% 1/10W D809 LL4148WP R841 68K 1% 1/10W R851 R802 NC 13 KOHM +-1% 1/10W C842 0. 01uF R829 22R 1/8W R825 22R 1/8W R837 47K 1/8W C822 1uF/25V R832 10K 1/10W 1 2 3 4 5 6 7 8 IC801 IN1+ IN1FB DTC CT RT GND C1 IN2+ IN2VREF CONT VCC C2 E2 E1 16 15 14 13 12 11 10 9 R806 68K 1% 1/10W D814 LL4148WP D812 R818 1K 1/10W 1% D806 LL4148WP 0 OHM +-5% 1/4W C821 0. 1uF/25V TL494 R810 51K 1/8W R861 270K 1% 1/10W Q807 PMBS3904 R854 68K 1% 1/10W R807 47K 1/10W R826 1K 1/10W 1% R824 1K 1/10W 1% R803 1M 1/10W 5% C825 0. 1uF/25V C845 2. 2uF/16V R862 1M 1/10W 5% C846 NC Q809 RK7002 R820 47K 1/10W NC R863 R831 2. 4K 1% 1/10W C820 220pF R805 NC C817 NC C834 0. 1uF/25V R835 1M 1/10W 5% T P V ( Top Key Component Victory Electronics Co . ) OEM MODEL 20'&22 LCD TPV MODEL PCB NAME Sheet PWPC8C42MQF1 715G2538 1 ACE 3 of 3 Size Rev Custom 4 <> G2538-4-X-X-35-080716 03. INVERTER Thursday , July 17, 2008 Date 29 Service Manual 5. 3 Audio Board 715G2837-1-2 CN602 1 2 3 4 5 6 7 8 9 10 11 12 GND VCC VOL MUTE NC RR+ LL+ GND ASUS VW224U&VW224S CN602 12 CN603 NC NC CN605 1 CN604 R602 1 2 3 NC 10K OHM R601 10K OHM C603 0. 47UF25V GND CONN C602 0. 47UF25V NC U601 EUA6021AIIT1 3 9 6 GND + C604 100uF/16V GND PVDD CN601 1 2 3 5 4 R604 10K OHM C601 0. 47UF25V C605 0. 47UF25V 8 7 4 5 PVDD VDD LIN+ LINRIN+ RIN- LOUT+ LOUTROUT+ ROUTBY PASS 12 10 20 2 16 15 19 13 GND GND GND + C608 1uF50V PHONEJACK R605 10K OHM C606 0. 47UF25V C607 0. 47UF25V GND R611 10K OHM 14 SHUTDOWN# FADE# SE/BTL# C610 0. 001uF PGND PGND 0. 001uF + C609 1uF50V GND 11 17 AGND 56G 616 40 R606 20K OHM C611 R607 20K OHM R603 10K OHM 18 VOLUME NC GND GND GND GND FB601 1 2 BEAD GNDGNDGND 1W 8OHM SPK 2W 4OHM SPK R604 065G 60227352T 065G 60291252T R605 R606 065G 60262252T 065G 60210352T GND 1 T P V ( Top Key Component Victory Electronics Co . ) OEM MODEL ASUS VW224 TPV MODEL PCB NAME Sheet AUPC8QU3 715G2837-1-2 2 of 2 Size Rev A4 1 <> G2837-1-2-X-2-080707 01 AUDIO Monday , July 07, 2008 Date 30 Service Manual 5. 4 Key Board 715G2900-1 ASUS VW224U&VW224S CONN 6 5 4 3 2 1 KEY 1 KEY 2 POWER-KEY LED-BLUE LED-AMBER CN001 GND 2 ZD001 C001 0. 1uF RLZ5. 6B 1 2 2 ZD002 C002 0. 1uF RLZ5. 6B 1 ZD003 C003 RLZ5. 6B 1 0. 1uF C004 0. 1uF C005 0. 1uF GND GND GND GND GND R001 2K OHM 1% 1/10W R002 0R05 1/10W 5% R003 1K 1/10W 1% R004 2K OHM 1% 1/10W R005 0R05 1/10W 5% 2 4 LED01 LED GND Size Rev 3 A E 1 SW001 2 1 SW002 2 1 SW003 2 1 SW004 2 1 SW005 2 1 SW006 2 3 SW 4 3 SW 4 3 SW 4 3 SW 4 3 SW 4 3 SW 4 Splendid-All Auto-VK222H Left Menu GND Right Input-VK222H Auto-other Power T P V ( Top Key Component Victory Electronics Co . ) OEM MODEL ASUS VW224 TPV MODEL KEPC7QU1 PCB NAME Sheet G2900-E 2 of 2 G2900-E-x-x-1-080102 01. KEY BOARD Thursday , January 03, 2008 Date 31 1 Service Manual ASUS VW224U&VW224S 6. PCB Layout 6. 1 Main Board 715G2670-1-2 32 Service Manual ASUS VW224U&VW224S 33 Service Manual ASUS VW224U&VW224S 34 Service Manual 6. 2 Power Board 715G2538-1-ACE ASUS VW224U&VW224S 35 Service Manual ASUS VW224U&VW224S 36 Service Manual ASUS VW224U&VW224S 37 Service Manual 6. 3 Audio Board 715G2837-1-2 ASUS VW224U&VW224S 6. 4 Key Board 715G2900-1 38 Service Manual ASUS VW224U&VW224S 7. Disassemble & Assemble SOP 7. 1 Precaution Please read the precautions as follows to prevent any damages to the LCD Monitor and also select the appropriate tools for disassembly and re-assembly. Prepare soft cloth and sponge as working platform to place LCD monitor horizontally. Hold LCD by the side carefully and DON'T touch or press panel directly. Remove all rings, watches and any other metal objects from your hands which possible to cause scratch. Always wear a ground strap or anti-static glove to protect the parts from static discharge. ESD (electro-static discharge) protection is required to guarantee the safety of product and personnel. 39 Service Manual 7. 2 Suggest Tools Here are some tools that can be used for the LCD monitor's service and repair. Philips-head Screwdirver Use a Philips-head screwdriver to fasten/remove the K- or B-typed screws ASUS VW224U&VW224S P/NN/A Gloves To protect LCD Panel and your hand P/N: (L) N/A (M) N/A C/D Disassembly Tool Use C/D Disassembly Tool to open cosmetic cover and avoid scratch. P/N: N/A Spacer Screwdriver Use a spacer screwdriver to fasten/remove spacer screws or hex screws. P/N: N/A 40 Service Manual 7. 3 Disassembly Procedure replace the defective parts accordingly. ASUS VW224U&VW224S Information in this section is to perform the disassembly procedure of the LCD monitor. Depending on the failures, ASUS VW224U LCD monitor consists of various subsystems. In addition, the detailed disassembly procedures of individual subsystem will be provided for your service needs. The disassembly procedure consists of the following steps: 3. 1 Stand Subsystem 3. 2 Main Subsystem 3. 3 Bezel Subsystem 7. 3. 1 Stand Subsystem 1. Unlock the latches under BASE to dismount. 2. Use C/D disassembly tool to unlock STAND COVER. 41 Service Manual 3. Remove 3 screws on the STAND, and then remove STAND. ASUS VW224U&VW224S 4. Remove 3 screws 5. Dismount HINGE 42 Service Manual 7. 3. 2 Main Subsystem Back Cover 1. ASUS VW224U&VW224S Use disassembly tool to open 2 latches at the bottom of BACK COVER as below, and then open the other latches along the edge of the BACK COVER. 2. Lift to dismount BACK COVER. 43 Service Manual Key Board 1. Move up it a little as following. ASUS VW224U&VW224S 2. Unlock lelt and right latches to dismount KEY BOARD. 3. Disconnect KEY BOARD CABLE. 44 Service Manual Main Shielding 1. Lift to separate the MAIN SHIELDING from BEZEL. ASUS VW224U&VW224S 2. Disconnect LAMP WIRES. 3. Release 4 screws HEAT SINK and pull down the MAIN SHIELDIGN. 45 Service Manual 4. Press to release left and right latches of LVDS CABLE, and then disconnect it. ASUS VW224U&VW224S 5. Remove the MAIN SHIELDING away from the LCD PANEL. 46 Service Manual Audio Board 1. Release 2 screws on AUDIO BOARD ASUS VW224U&VW224S 2. Remove AUDIO BOARD 3. Disconnect AUDIO CABLE and KEY CABLE 47 Service Manual Main Borad 1. Release 4 screws. ASUS VW224U&VW224S 2. Release 1 screw on MAIN BOARD. 3. Turn over the MAIN BOARD and disconnect AUDIO BOARD CABLE and MAIN BD_POWER BD CABLE. 48 Service Manual 4. Press to disconnect LVDS CABLE. ASUS VW224U&VW224S Power Board 1. [. . . ] Adjust the GREEN on factory window until chroma 7120 indicator reached the value G=100 6. Adjust the BLUE 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. Switch the chroma-7120 to RGB-Mode (with press "MODE" button) 2. [. . . ]