AOC LM520i Wartungshandbuch

SERVICE MANUAL LM520i Monitor (With CPTXG08 PANEL) THESE DOCUMENTS AR

10 ITEM SYMBOL MIN. TYP. MAX. UNIT REMARK Input voltage Vin 10.8 12 13.2 V Input current Iin 2250 2500 mA FOR 4 LOAD Output Current Iout

11b. INPUT frequency out of VESA-spec. (out of tolerance too far) 3. UNSUPPORT mode, try different Video-card Setting: Input frequency out of toler

12 Inverter Block Diagram

13 5-4 SOFTWARE FLOW CHART 12NY5YN10YN12YN7YN64389141113YN15YN16 1719YN18

14 1) MCU initialize. 2) Is the eeprom blank ? 3) Program the eeprom by default values. 4) G

156. Trouble Shooting 6-1.MAIN BOARD 1.NO SCREEN APPEAR Note:1. if Replace “MAIN-BOARD” , Please re-do

16PANEL-POWER CIRCUIT INVERTER Control Relative Circuit SCILLATOR BLOCK U200-DATA OUTPUT OK,R225 h

172.PANEL POWER CIRCUIT 3.INVERTER Control Relative Circuit check R507 should have response from 0V to 3.3V Whe

184.U203-DATA OUTPUT Measured DCLK DVS, DHS (pin 117,116 from U203 ) Is the waveform ok? DCLK around 40 MHz , DV

196-2.Power/Inverter Board 1.) No power

2TABLE OF CONTENTS PAGE 1. SPECIFICATIONS ... 31-1

202.) W / LED , No Backlight

217. MECHANICAL OF CABINET FRONT DIS-ASSEMBLY LCD PANELMAIN FRAMEMAIN BOARDSHIELDBASESUPPORT(FRONT)HINGEINVERTER BOARDADAPTER BOARDSUPPORT(BACK)IN

227. BOM LIST: T562KCDHLXMGN 插件位置 元件料号 品名规格 组成用量 单位 CBPC560KCDAC CONVERSION BOARD FOR T5 1 PCS KEPC562KD1 KEY BOARD FOR T562K* 1 PCS

23 85L 634 11 SHIELD 1 PCS 89L 176 50 N FPC 0 PCS 89L1735GAA D1 SIGNAL CABLE 1 PCS 89L176J 50 N FPC 1 PCS 89L412A15N I

24Q2 56L 566 6 SI9953DY-T1 1 PCS U9 56L 585 7 RT9164-25CL 1 PCS U7 56L1133 33 M24C16-MN6T 1 PCS U2 56L1133 34 M24C02-WMN6T SMT 1 PCS U3 5

25R64 61L0603103 CHIPR 10K OHM +-5% 1/10 1 PCS R65 61L0603103 CHIPR 10K OHM +-5% 1/10 1 PCS R66 61L0603103 CHIPR 10K OHM +-5% 1/10 1 PCS R70 61

26C14 65L0603103 32 0.01UF+-10% 50V X7R 1 PCS C15 65L0603103 32 0.01UF+-10% 50V X7R 1 PCS C7 65L0603103 32 0.01UF+-10% 50V X7R 1 PCS C8 65L0603

27C80 65L0603104 37 CHIP 0.1UF 50V/Y5V 1 PCS C82 65L0603104 37 CHIP 0.1UF 50V/Y5V 1 PCS C87 65L0603473 32 CHIP 0.047UF 50V X7R 1 PCS C68 65

28ZD9 93L 39149 MLL5232B BY FULL POWER 0 PCS D13 93L 60220 BAT54C-GS08 0 PCS D13 93L 60230 BAT54C(L43) 1 PCS D14 93L 64 32 LL4148 SMD

29 40L 45762412A CBPC LABEL 1.03 PCS 51L 6 4500 RTV 胶 2G 51L 6 4502 RTV 胶 0G 51L 6 4503 RTV 胶 0G IC902 56L 139 3 PC

31. SPECIFICATIONS FOR LCD MONITOR 1-1 General specifications 1. LCD-PANEL : Active display area 15 inches or 15.1 inches diagonal Pixel pitch

30L201 73L 253139 YL CHOKE 0 PCS L201 73L 253139LSL CHOKE COIL 1 PCS PT201 80LL15T 7 DN X'FMR 0 PCS PT201 80LL15T 7 YS X'FMR 1

31R926 61L0805240 1F CHIPR 2.4KOHM +-1% 1/8W 1 PCS R916 61L0805240 2F CHIP 24KOHM 1% 1/8W 1 PCS R925 61L0805261 1F CHIP 2.61KOHM 1/8W 1% 1 P

32------- ------------------------ ----------------------- ---------- ---- C207 67L 309330 7T 33UF 1 PCS C905 6L 31502 1.5MM RIVET 2 PCS L902

33Q207 57L 414 2 MPS3906 1 PCS Q205 57L 417 3 T MPS3904 1 PCS Q902 57L 419 PP T 2PC945P 1 PCS Q901 57L 420 PP T 2PA733P 1 PCS C91

34 37L 446 1 LCD HINGE (L501-C) 1 PCS M1L 340 8128 SCREW 2 PCS Q1L 330 8120 SCREW 3X8mm 2 PCS Q1L 340 8128 SCREW 4X8mm 1

35 GNDC3620.1uF/16V+3.3VPWM0GPIO2+C366470uF/16VRP64.7K 1/16W　12348765GPIO6R62310K 1/16W　+3.3VR350220 1/16W　KEY_MENUKEY_LEFTC5320.001uFAGNDEAR_RBKL

368-2 Inverter/Power Board Q207MPS3906R2321K 1/16W　D201SR24R236620 1/16W　TP3HVL1R2261K 1/16W　R2123.9K 1/16W　DIMR2142.2K 1/16W　R2251K 1/16W　A I

3710. PCB Layout 10-1 .Main Board 715L1039-1

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3910-2 .Inverter/Power Board 715L1034-1

41-2 LCD MONITOR DESCRIPTION The LCD MONITOR will contain an main board, an inverter/power board, keypad board and internal adapter which house the

40

52. PRECAUTIONS AND NOTICES 2-1 ASSEMBLY PRECAUTION (1) Please do not press or scratch LCD panel surface with anything hard. And do not soil LCD

63. OPERATING INSTRUCTIONS This procedure gives you instructions for installing and using the LM520 LCD monitor display. 1. Position the display on

74. ADJUSTMENT 4-1 ADJUSTMENT CONDITIONS AND PRECAUTIONS Adjustments should be undertaken only on following function : contrast, brightness focus,

8Press MENU button for 2 seconds along with plug-in AC power cord will be in factory mode, and the OSD screen will located at left top of panel but t

95. CIRCUIT-DESCRIPTION 5-1 PANEL SPECIFICATION (CPT XG08) 5-1-1Panel Feature － 15” XGA TFT LCD Panel － 2 CCFLS Backlight System － Supported (H1