Table of Contents
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20"LCD Monitor
Service
Service
Service
Description
Table of Contents.................................................1
Revision List..........................................................2
Important Safety Notice...........................................3
1.Monitor Specification...................................................4
2.LCD Monitor Description........................................5
3.Operation Instruction....................................................6
3.1.General Instructions..................................................6
3.2.Control Buttons and Connectors................................6
3.3.OSD Menu................................................................7
4.Input/Output Specification.......................................12
4.1.Input Signal Connector...........................................12
4.2.Factory Preset Display Modes................................13
4.3.Panel Specification...........................................14
5.Block Diagram............................................................16
5.1.Main Board.........................................................16
5.2.Power Board..........................................................17
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
Table of Contents
Page Description
6.Schematic...............................................................18
6.1.Main Board............................................................18
6.2.Power Board..........................................................22
6.3.Key Board.............................................................25
6.4.USB Board...........................................................26
7.PCB Layout.............................................................28
7.1.Main Board...........................................................28
7.2.Power Board..........................................................34
7.3.Key Board............................................................36
8.Maintainability...........................................................37
8.1.Equipments and Tools Requirement......................37
8.2.Trouble Shooting..................................................37
9.White-Balance,Luminance Adjustment.....................43
10.Monitor Exploded View............................................45
11.BOM List..........................................................46
SAFETY NOTICE
1
AOC 2036Va
Horizontal Frequency
30-80kHz
Page
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Summary of Contents for AOC 2036Va
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Page 1: Table Of Contents
20"LCD Monitor AOC 2036Va Service Service Service Horizontal Frequency 30-80kHz Table of Contents Description Page Description Page Table of Contents…………………………………….…...1 6.Schematic……………..........18 Revision List……………………………………..……..……2 6.1.Main Board………...........18 Important Safety Notice………………………………….…3 6.2.Power Board..….…..........22 1.Monitor Specification.........………..4 6.3.Key Board…...………..........25 2.LCD Monitor Description…….…………………….…..5 6.4.USB Board…….……..........26 3.Operation Instruction…..........6 7.PCB Layout...…………..........28... -
Page 2: Revision List
Revision List Version Release Date Revision History TPV Model Name May. 31,2009 Initial Release TA9GMANQ6WA16N Nov. 09,2009 Add new model TA9SMANL6W3APN TA9SMANM6WSDPN Add new models Dec.31,2009 TA9GMANL6W3APN TA9GMANM6WSDPN Apr.19.2010 Add new model TA9GA8NQ6WA15NE TA9GA8NQ6WA25NE Add new models TAAGA8NL6W3APNE Aug.-17-2010 TAAGA8NM6WPOPNE TAASA8NE6WA1PNE Add new Key Board in 715G3371 2... -
Page 3: Important Safety Notice
Important Safety Notice Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service procedures recommended by AOC and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended. -
Page 4: Monitor Specification
1. Monitor Specifications Model number 2036Va Driving system TFT Color LCD Viewable Image Size 508.05mm diagonal Pixel pitch 0.2768mm(H) x 0.2768mm(V) LCD Panel Video R, G, B Analog lnterface & Digital Interface Separate Sync. H/V TTL Display Color 16.7M Colors... -
Page 5: Lcd Monitor Description
2. LCD Monitor Description The LCD monitor will contain a main board, a power board, a key board and two USB 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. -
Page 6: Operation Instruction
3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control buttons are located on the side of the monitor. By changing these settings, the picture can be adjusted to your personal perference. •... -
Page 7: Osd Menu
To protect equipment, always turn off the PC and LCD monitor before connecting. 1.Connect the power cable to the AC port on the back of the monitor. 2.Connect one end of the 15-pin D-Sub cable to the back of the monitor and connect the other end to the computer's D-Sub port. - Page 8 Luminance ---Brightness, Contrast, Gamma Notes: When Eco mode is not set as “Standard”, Contrast and Brightness can not be adjusted; When DCR is set as “On”, Contrast, Brightness, Eco mode and Gamma can not be adjusted. Image Setup ---Clock, Phase, H.Position, V.Position, Exit Color Temperature ---User-R, User-G, User-B, Normal, Warm, Cool, sRGB, Exit Picture Boost --- V.Position, H.Position, Contrast, Brightness, Frame Size, Bright Frame, Exit Extra---Language, Reset, DDC-CI, OSD Timeout, Transparency, V.
- Page 9 OSD Control Function Main Menu 1nd Menu Icon 1nd Sub Menu Adjust Description Reset Value Icon Item Range Dynamic contrast ratio Recall OFF Value Standard Text Internet Recall Eco Mode Picture Adjustment Game Standard Value Movie Sports Recall OFF Full Enhance RGB and brightness enhance N/A Value Recall OFF...
- Page 10 Warm Recall Warm color temperature (default is 50) (6500K) from EEPROM. will not be Cool Recall Cool color temperature Modified by Reset function (9300K) from EEPROM. in user mode. sRGB Recall sRGB color temperature from EEPROM. Adjust the vertical position of the V.
- Page 11 Exit Exit the main OSD Main Menu Adjust Main Menu Icon Menu Description Reset Value Item Range Item Menu Menu Turn on main menu / enter AUTO Select image ratio from auto, 16:9 Select auto or Image ( can’t change when input is wide wide format for ratio 16:9...
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Page 12: Input/Output Specification
4. Input/Output Specification 4.1 Input Signal Connector Analog connectors Pin No. Description Pin No. Description Video-Red Video-Green Ground Video-Blue N.C. N.C. DDC-Serial Data Detect Cable H-Sync GND-R V-Sync GND-G DDC-Serial Clock GND-B Digital connectors Pin No. Description Pin No. Description TMDS data 2－... -
Page 13: Factory Preset Display Modes
4.2 Factory Preset Display Modes Stand Resolution Horizontal Frequency(kHZ) Vertical Frequency(Hz) 640×480 @60Hz DMT 31.469 59.940 640×480 @67Hz MAC 35.000 66.667 640×480 @72Hz DMT 37.861 72.809 640×480 @75Hz DMT 37.500 75.000 Dos-mode 720×400 @70Hz DOS 31.469 70.087 SVGA 800×600 @56Hz DMT 35.156 56.250 SVGA... -
Page 14: Panel Specification
4.3 Panel Specification 4.3.1 General Features LM200WD1-TLC1 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent Lamp (CCFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally white mode. - Page 15 0.329 Color Gamut Viewing Angle (CR>5) x axis, right(f=0°) Degree x axis, left (f=180°) y axis, up (f=90°) y axis, down (f=270°) Viewing Angle (CR>10) x axis, right(f=0°) Degree x axis, left (f=180°) y axis, up (f=90°) y axis, down (f=270°) Crosstalk Luminance uniformity -Angular dependence (TCO’03)
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Page 16: Block Diagram
5. Block Diagram 5.1 Main Board Crystal Panel Interface 14.31818MHZ (X401) (CN302) Scalar IC TSUMU58EHL/TSUMU58NHL FLASH ROM Key Control (Include ADC, OSD, MCU) EN25F20-100GCP 2Mb/ Interface (U401) (CN402) MX25L2026MI-12G SOP-8 (U402) DDC1_SCL DDC2_SCL DDC_WP DDC_WP DDC1_SDA DDC2_SDA H, V RX(0~2,C)P EEPROM EEPROM RX(0~2,C)N... -
Page 17: Power Board
5.2 Power Board AC input +14.5V Transformer Bridge Rectifier EMI filter Rectifier diodes and Filter (T901) Start Resistor (R908) PWM Control Power Switch LD7576 (Q901) (U901) Photocoupler Regulator (U902) (U903) Inverter Transformer MOSFET +14.5V Connector (Q803) (T801) (CN801, CN802) PWM Control Feedback Circuit ON/OFF AM9000ES... -
Page 18: Schematic
T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size FB110 G3329-1-2-X-2-090505 TPV MODEL 絬 隔 瓜 絪 腹 AOC 2036Va 2.0.INPUT PCB NAME Key Component 称 爹 Wednesday , May 27, 2009 Sheet Date 300 OHM... - Page 19 T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size G3329-1-2-X-2-090505 TPV MODEL 絬 隔 瓜 絪 腹 AOC 2036Va Key Component 3.0.OUTPUT PCB NAME <称爹> 称 爹 Date Wednesday , May 06, 2009 Sheet...
- Page 20 100R 1/16W 5% T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size G3329-1-2-X-2-090505 TPV MODEL AOC 2036Va 絬 隔 瓜 絪 腹 Key Component 4.0.POWER PCB NAME 称 爹 Wednesday , May 06, 2009 Sheet Date...
- Page 21 100R 1/16W 5% R453 0R 1/16W 5% POWER_KEY # LED_GRN/BLUE U402 LED_ORANGE R430 100R 1/16W 5% R455 2.2K 1/16W 5% 010A Befor AOC ID2007 OSD R418 C431 C432 C433 ZD401 C434 C435 0R05 1/16W R440 10K 1/16W 5% R461 0R 1/16W 5%...
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Page 22: Power Board
6.2 Power Board 715G2892 2 3(with audio) R929 100 OHM 1/4W BD901 C916 F801 KBP208G R930 100 OHM 1/4W 0.001uF 0R05 1/4W 5% +14.5V R903 100 OHM 1/4W ZD901 R904 MTZJ T-72 16B D901 C918 470OHM2W 1000uF 25V NC/SR5150 R905 D902 470R 1/10W 5% C937... - Page 23 +14.5V C811 470uF 25V R805 CN801 10K 1/10W 5% C814 R803 1uF 25V R816 CONN 0.1uF50V C801 10pF3KV 2K 1/10W 5% 10 OHM +-5% 1/10W R807 T801 RJ805 R811 POWER X'FMR C815 R815 C802 10K 1/10W 5% 10K 1/10W 5% C809 0R05 1/4W 5% 0.0033uF/50V...
- Page 24 +5V1 +5V1 C604 R602 10K 1/10W 5% 470uF 16V R603 10K 1/10W 5% C609 10K 1/10W 5% 1uF/25V R609 U601 CN602 LOUT- CN601 SE/BTL LOUT- R604 10K 1/10W 5% VOLUME LOUT+ C601 0.47uF/16V LIN- LOUT+ ROUT+ C606 0.47uF/16V RIN- ROUT+ R605 10K 1/10W 5% BY PASS...
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Page 25: Key Board
6.3 Key Board 715G3371 1 & 715G3371 2 LED_power C001 0.001uF C002 C003 Button_5 R012 2.2uF/10V NC/2.2uF/10V 0R05 1/10W 5% LED001 LED_1 sleep GP0[0] GP0[2] LED_2 GP0[1] XRES I2C_SCL R010 I2C SCL GP1[4] I2C_SDA Button_4 NC/0R05 1/10W 5% I2C SDA GP1[3] R001 LED_1... -
Page 26: Usb Board
7.4 USB Board 715G3501 2 CN501 FB501 CN502 CONNNECTOR C501 C502 C503 CONN 5PF / 50V 5PF/50V T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size G3501-A-X-X-1-090113 TPV MODEL 絬 隔 瓜 絪 腹 Key Component USB PLUG(UP STREAM) PCB NAME... - Page 27 715G2663 2 CN512 CONNNECTOR CN511 63365 5P 2.0mm T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size G2663-2-X-1-081024 TPV MODEL 絬 隔 瓜 絪 腹 Key Component USB PLUG(DOWN STREAM) PCB NAME 715G2663-2 称 爹 Friday , October 24, 2008 Sheet Date...
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Page 28: Pcb Layout
7. PCB Layout 7.1 Main Board 715G3329 1 2... - Page 31 715G3329M01005004S...
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Page 34: Power Board
7.2 Power Board 715G2892 2 3... -
Page 36: Key Board
7.3 Key Board 715G3371 1 715G3371 2... -
Page 37: Maintainability
8. Maintainability 8.1 Equipments and Tools Requirement Voltmeter. Oscilloscope. Pattern Generator. DDC Tool with an IBM Compatible Computer. Alignment Tool. LCD Color Analyzer. Service Manual. User Manual. 8.2 Trouble Shooting 8.2.1 Main Board (1). No Power No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240V is normal... - Page 38 (2). No Picture No picture Check U701 Vout=3.3V U703 Vout=1.8V Check CN701,U701,U703 X401 oscillate waveforms are normal Replace X401 Check if the Hsync signal from CN101 is normally Input the sync signal of computer, or change the cable Replace U401...
- Page 39 (3). White screen White screen Measure Q302 base X401 oscillate is high level? waveform is normal Replace X401 Check Q301, Q302 and CN302 solder Check reset circuit of U401 is normal Check Correspondent Check Correspondent component. component. Replace U401 Replace Panel...
- Page 40 8.2.2 Power/Inverter Board 1.) No power Check ZD901 =14.5V Check AC line volt 100V or 240V Check AC input Check the voltage of C907 (+) Check bridge rectified circuit and F901 circuit Check start voltage for the pin8 of U901 Check R908, U901 Check the auxiliary voltage 1) Check U901, T901...
- Page 41 2.) W / LED, No Backlight Check C811 (+) = 14.5V Check adapter Check ON/OFF signal Check main board Check U801 pin9=14.5V Check U801 Check the output of U801 Peplace U801 Check the output of T801 Peplace T801 Check connecter, lamp and feedback circuit...
- Page 42 8.2.3 Key Board OSD is unstable or not working Is Key Pad Board connecting normally? Connect Key Pad Board Is Button Switch normally? Replace Button Switch Is Key Pad Board normally? Replace Key Pad Board Check Main Board...
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Page 43: White-Balance,Luminance Adjustment
9. White- Balance, Luminance Adjustment Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment. How to setting MEM channel you can reference to chroma 7120 user guide or simple use “ SC” key and “NEXT” Key to modify xyY value and use “ID”... - Page 44 3. The LCD-indicator on chroma 7120 will show x = 283, y = 297. 4. Adjust the RED on factory window until chroma 7120 indicator reached the value R=100 5. Adjust the GREEN on factory window until chroma 7120 indicator reached the value G=100 6.
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Page 45: Monitor Exploded View
10. Monitor Exploded View Description BEZEL PANEL MAIN BOARD POWER BOARD USB BOARD(USB9QA1) SHIELD MAIN FRAME REAR COVER USB BOARD(USB8QB3) 10 HINGE RELEASE BUTTON 11 STAND_REAR Description 12 BASE 0M1G1730 6120 SCREW(MAIN BO ARD TO MAIN FRAME) 13 HINGE 0M1G1730 6120 SCREW(POWER BOARD TO MAIN FRAME) 14 STAND_FRONT 0M1G1730 6120 SCREW(USB BOARD(USB9QA1) TO MAIN FRAME) 15 KEY BOARD... -
Page 46: Bom List
11. BOM List Note: The parts information listed below are for reference only, and are subject to change without notice. Please go to http://cs.tpv.com.cn/hello1.asp for the latest information. 2036Va TA9GMANQ6WA16N Location Part No. Description 040G 581689 4A BARCODE LABEL FOR 1... - Page 47 U103 056G 662502 IC ESD AZC199-04S SOT23-6L U104 056G 662502 IC ESD AZC199-04S SOT23-6L U105 056G 662502 IC ESD AZC199-04S SOT23-6L U106 056G 662502 IC ESD AZC199-04S SOT23-6L U107 056G 662502 IC ESD AZC199-04S SOT23-6L U402 056G1133129 IC EN25F20-100GCP 2MB SOP-8 U101 056G1133918 IC AT24C02BN-SH-T 8-SOIC...
- Page 48 R135 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W R133 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W R120 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W R421 061G0402104 RST CHIPR 100 KOHM +-5% 1/16W R106 061G0402222 RST CHIPR 2.2 KOHM +-5% 1/16W R107 061G0402222 RST CHIPR 2.2 KOHM +-5% 1/16W...
- Page 49 C413 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C412 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C411 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C410 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C409 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C436 065G0402105 A5 CAP 0402 1UF K 10V X5R...
- Page 50 ZD004 093G 39S 34 T UDZSNP5.6B ROHM ZD005 093G 39S 34 T UDZSNP5.6B ROHM 709G3371 QS001 CONSUMPTIVE ASS'Y 715G3371 1 KEY PCB 115X10.2X1.0MM FR-4 D/S 1OZ PWPC8A21MYD6 POWER BOARD G2892-2-3-X-8-090416 040G 45762412B CBPC LABEL GND1 009G6005 1 GROUND TERMINAL CN602 033G3802 4 BH CONNECTOR CN602...
- Page 51 CN902 095G 825 9X518 HARNESS 9P(SCN)-9P(PLUG) 100MM 705GQ851001 OIL FOR DISAPPEAR ASS'Y 705GQ957017 Q901 ASS'Y Q901 057G 667 52 FET 2SK4100LS-T 7A/650V TO-220FI(LS) Q901 057G 667 56 MOSFET 7A/650V FMA07N65GX TO-220F Q901 057G 724 11 STP9NK65ZFP 090G6064 1 HEAT SINK 0M1G 930 8120 SCREW 705GQ993021...
- Page 52 RJ806 061G1206000 RST CHIP MAX 0R05 1/4W RJ805 061G1206000 RST CHIP MAX 0R05 1/4W RJ804 061G1206000 RST CHIP MAX 0R05 1/4W RJ803 061G1206000 RST CHIP MAX 0R05 1/4W RJ802 061G1206000 RST CHIP MAX 0R05 1/4W RJ801 061G1206000 RST CHIP MAX 0R05 1/4W F801 061G1206000 RST CHIP MAX 0R05 1/4W...
- Page 53 Q904 057G 761 16 TRA KTD1028 KEC R906 061G152M10452T SY RST MOFR 100KOHM +-5% 2WS FUTABA R924 061G152M39852T RST MOFR 0.39 OHM +-5% 2WS C911 065G 2K152 2T6921 CAP CER 1500PF K 2KV Y5P C913 067G215Y2207KT CAP 105℃ 22UF M 50V KINGNICHI FB901 071G 55 29 FERRITE BEAD...
- Page 54 Q40G0002615A78 DVI VISTA LABEL+EPEAT+EPA (52X15MM) Q44GA068101 Q44GA068201 Q45G 88609122 EPE BAG FOR MONITOR Q50G 4 10 Q52G 1185 99 BIG CARTON TAPE FOR AOC Q85G0119101 SHIELD USB8QB3 USB BOARD CN511 033G3802 5 BH CONNECTOR 5PIN CN512 088G 352 2 TN...