AOC E2237FWH - Service Manual

21.5" LCD Monitor AOC e2237Fwh 1Service Service Service

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194. Input/Output Specification 4.1 Input Signal Connector Analog connectors DVI connectors

2Revision List Note: Check updating contents, please input keywords in the “Find box” of PDF and click “OK”. After that, it will automatically locat

20HDMI connectors 1 HDMI data 2+ 11 HDMI Clock Shield 2 HDMI data 2 Shield 12 HDMI Clock- 3 HDMI data 2- 13 CE remote 4 HDMI data 1+ 14

214.2 Factory Preset Display Modes

224.3 Panel Specification 4.3.1 General Features This specification applies to the 21.5 inch-wide Color a-Si TFT-LCD Module M215HW01.The display sup

23Backlight Unit 4.3.4 Optical Characteristics

245. Block Diagram 5.1 Main Board 14.31818MHZ (X401) FLASH ROM A25L020AO-F/Q (U402) Scalar IC TSUMU88MWDT3-LF-1 (In

25 5.2 Power Board Converter EMI filter Start Resistor (R934, R906) PWM Control (IC901) Tran

26 715G4128P02000004F Converter D801 LED (CN804)PWM Control MP3389EF (U801) 14.5V MOSFET (Q806) DIM ON/OFF L801

27 6. Schematic 6.1 Main Board 715G3603M02000004L U102AT24C02BN-SH-T12345678A0A1A2VS

28 LVB1PR30510K1/16WC3051uF 16VLVB0MC304100N 16VQ301AO3401PA4LVA1MLVA0PLVB1MC301100N

29 C7231N 50VD707SM340A12C7501UF 10V+C716470uF 10V+C718180uF 16VR726100K1/16WR72733K

3Important Safety Notice Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service procedur

30 PB[0..9]AUCOMPB7PA6R4024.7K1/16WC427 1uF 16VDSUB_R-2R436 100OHM1/16WR4044.7K1/16W

31 HCK-HDMI_+5VR5174.7K1/16WGB78Wednesday , April 21, 2010<称爹>7.0.HDMI INPUTG3

32 OUT-L+FB601 120 OHM1 2MUTE5Q603LMBT3906LT1G123CN601PHONEJACK12354R612NC/100K1/16W

33 6.2 Power Board 715G3980P02000003S

34 715G3622P01000004L On/Of fR82810K 1/10W+C812220uF/25VR825100K 1/10W 1%U801OZ9955A

35 715G4128P02000004F C805220P 100VR8271 OHM +-5% 1/8WOVPR818 0R05 1/4W+C809100UF

36 6.3 Light Sensor Board 715G3637T01000004S U711ALS-PDIC17-79NB/TR8123 456VDDADRGND

37 6.4 LED Board 715G3757T01000004L R038220 OHM 1/10W 5%LED038LED12LED034LED12R03322

38 6.5 Key Board 715G3646K01000004W Button_1CN002CONN123LED004LED12LED003LED12CN001C

39 7. PCB Layout 7.1 Main Board 715G3603M02000004L

41. Monitor Specifications LCD Panel Model number e2237Fwh Driving system TFT Color LED Viewable Image Size 54.7 cm Pixel pitch 0

40 7.2 Power Board 715G3980P02000003S

41 715G3622P01000004L

42 715G4128P02000004F

43 7.3 Light Sensor Board 715G3637T01000004S 7.4 LED Board 715G3757T01000004L

44 7.5 Key Board 715G3646K01000004W

45 8. Maintainability 8.1 Equipments and Tools Requirement 1. Voltmeter. 2. Oscilloscope.

46 8.2 Trouble Shooting 1. No Power OK NG No power Check power cable is tightened? Check Pow

47 2. No Video (Power LED Blue) No Video (Power LED Blue) Press

48 3. DIM OK The end OK The end OK The end DIM (image ove

49 4. Color is not optimal NG Color is not

52. LCD Monitor Description The LCD monitor will contain a main board, a converter board, a light sensor board, a LED board and a key board which ho

50 9. Firmware and DDC Instruction 9.1 Firmware Instruction Take “TSUMU88MWDT3-AUOM215HW01V6

51 Step 5: Burning 1. Open “MSTAR ISP Tool V4.5.0.7.7” to burn software. Note: “ISP_Tool.e

52 3. Choose “DEVICE”, do tick in front of “WP Pin pull to high during ISP”, scheme as fol

53 5. Click “Read”, show as follow picture, and then choose correct software to click “open

54 7. Click “Auto”, show as follow picture. And then click “Run”. 8. While appear “Blan

55 9. AC OFF, wait for about one minute, after the electricity inside large capacitor of

56 9.2 DDC Instruction Tool list: 1. DDC board:715GT034-B 2. Software (WA.DAT&WD.DAT&am

57 VGA&DVI Burning: 1. Open EDID folder, double-click “”, select “Analog and DVI” show a

58 3. Click “ok” show as follow picture. 4.Input same SN twice. Click “Pragram” to burn.

59 Note: Appear fault as follow, please input SN once more. Click “program” to burn once m

63. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control knobs are located at fro

60 5.Click “READ” show as follow picuture.If read SN is same as before inputing and model na

61 For HDMI BURNING: DDC Board as the follow picture: TOOL P/N: 715GT034-B HDMI B

62 2. Click “Load file” and select as follow picture. 3. Click “ok” show as follow picture

63 4.Input same SN twice. Click “Pragram” to burn. When appear “pass” as follow picture that

64 5.Click “READ” show as follow picuture.If read SN is same as before inputing and model na

65 10. White- Balance, Luminance Adjustment Approximately 30 minutes should be allowed for w

66 C. Adjust Cool (9300K) color-temperature 1. Switch the Chroma-7120 to RGB-Mode (with pres

67 11. Monitor Exploded View

68 No. Description 1 BEZEL 2 RUBBER 3 SUB-BEZEL 4 SPK 5 KEY BOARD 6

69 12. BOM List Note: The parts information listed below are for reference only, and are sub

7 1. Power 2. Audio 3. Analog (DB-15 VGA cable) 4. DVI 5. HDMI To protect equipment, always turn off the PC and LCD monitor before connecting. 1 C

70 033G6007 1 LENS IC902 056G 139 3A IC PC123Y22FZ0F NR901 061G 58005 W RS

71 HS1 Q90G0201 1 HEAT SINK 705GQ957053 Q901 ASS"Y 051G 200 1 OIL FOR DISA

72 C901 065G080510332K F CAP CHIP 0805 10NF K 50V X7R C910 065G080510432K 3

73 C812 067G 415221 4K 105℃ 220UF M 25V KING NICHI CN803 033G801910Y H FPC CONN. 0.5

74 R821 061G08051002FF RST CHIPR 10KOHM +-1% 1/8W FENGHUA R801 061G08051002FF RST CHIP

75 U102 056G1133918 IC AT24C02BN-SH-T 8-SOIC U504 056G1133918 IC AT24C02BN-SH-T 8-SOIC

76 R113 061G0402101 JY RST CHIPR 100 OHM +-5% 1/16W YAGEO R118 061G0402101 JY RST CHIP

77 R714 061G04021301FY RST CHIPR 1K3 +-1% 1/16W YAGEO R522 061G0402202 JY RST CHIPR

78 C603 065G040210232K Y CAP CHIP 0402 1N 50V X7R +/-10% C430 065G040210332K

79 C116 065G040222417Z Y CAP CHIP 0402 220NF 16V Y5V C117 065G040222417Z Y C

83.3 OSD Menu 1) Press Menu (Power) button to activate the OSD window. Press left, right, up, down button to navigate through the functions. Once

80 C302 065G120622615K T CAP CHIP 1206 22UF K 16V X5R C609 065G120622615K T

81 E715 715G3603M02000004L MAIN PCB FR4 165X50X1.6MM DS KEPC9QKL KEY BOARD G3646-K01-

82 R038 061G0603221 JY RST CHIP 220 OHM 1/10W 5% R039 061G0603221 JY RST CHIP 220 OHM

83 033F303SM24K30 PK2407P30/TD00-30LH 033F206H30P252 PD240315/A1252H002-2*15P 033F303

84 HIAAAP2KBXE6DN Location Part No. Description Remark 052G 1211 A TASMA ALUMINIOW

85 R904 061G152M47852T RST MOFR 0.47 OHM +-5% 2WS R904 061G152M47858G 0.47 OHM +-5%

86 IC901 056G 379530 AC/DC CONVERTER LD7750GS SOP-8 R912 061G0603102 JF RST CHIPR 1K

87 D908 093G 64S901 T DIODE LS4148 CN901 006G 31500 EYELET 12V 006G 31501 E

88 U601 056G 616 65 IC PAM8602MNHR SSOP-24 U502 056G 662 18 IC AZ1045-04F.R7G DFN251

89 R408 061G0402000 JY NO-SUGGEST RST CHIPR MAX 0R05 OHM 1/16W R508 061G0402000 JY N

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90 R610 061G0402103 JY NO-SUGGEST RST CHIPR 10KOHM +-5% 1/16W Y R615 061G0402103 JY

91 R617 061G0603000 JY NO-SUGGEST RST CHIPR MAX0R05 1/10W YAGEO R405 061G0603000 JY

92 C413 065G040210412K Y CAP CHIP 0402 100N 16V X7R +/-10% C412 065G040210412K

93 C108 065G040247312K T CAP 0402 47NF 10% 16V X7R C110 065G040247312K T C

94 FB601 071G 56K121 CHIP BEAD FB602 071G 56K121 CHIP BEAD FB603 071G 56K121 C

95 R009 061G0603102 JY RST CHIPR 1KOHM +-5£¥ 1/10W YAGEO R008 061G0603102 JY RST

96 LED039 081G 15B 1 EL LED BLUE 12-215-BHC-YLMQY-3T LED040 081G 15B 1 EL LED

97 C806 065G060310131J Y CAP CHIP 0603 100P 50V NP0 +/-5% C802 065G060368332K

98 715G3637T01000004S USB PCB FR4 DS 18X14X1.0MM Q36G 600517 DUSTER CLOTH