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User Manual
19" LCD Color Monitor
Service
Service
Service
Description
Table of Contents...................................................1
Revision List..........................................................2
1. Monitor Specification..................................................3
2. LCD Monitor Description........................................4
3. Operation Instructions..................................................5
3.1. General Instructions..................................................5
3.2. Control Button....................................................5
3.3 Adjusting the Picture............................................6
4. Input/Output Specification.......................................8
4.1. Input Signal Connector.........................................8
4.2. Factory Preset Display Modes...........................9
4.3. Panel Specification.........................................10
5. Block Diagram............................................................12
5.1 Software Flow Chart.........................................12
5.2. Electrical Block Diagram...............................14
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.............................................................16
6.1 Main Board..........................................................16
6.2 Power Board.................................................22
6.3 Key Board....................................................24
7. PCB Layout...........................................................25
7.1. Main Board.........................................................25
7.2. Power Board........................................................27
7.3. Key Board............................................................28
8. Maintainability........................................................29
8.1. Equipments and Tools Requirement.....................29
8.2. Trouble Shooting................................................30
9. White-Balance, Luminance adjustment...............36
10. Monitor Exploded View....................................38
11. BOM List...............................................................39
12. Different Parts List.........................................51
SAFETY NOTICE
1
AOC 916Vwa
Horizontal Frequency
31-80 kHz
Page
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Summary of Contents for AOC 916Vwa
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Page 1: Table Of Contents
19" LCD Color Monitor AOC 916Vwa Service Service Service Horizontal Frequency 31-80 kHz TABLE OF CONTENTS Description Page Description Page 6. Schematic……………..........16 Table of Contents…………………………………………...1 6.1 Main Board..………..........16 Revision List………………………………………………..2 6.2 Power Board………………………………………..22 1. Monitor Specification......…………..3 6.3 Key Board…………………...….……………………24 2. LCD Monitor Description……………………………..4 7. -
Page 2: Revision List
19" LCD Color Monitor AOC 916Vwa Revision List Version Date Revision History TPV Model Name Nov.-27-07 Initial release T97MRHDLAWCKDN T97MRHDBAWA3DN Mar-25-08 Add new BOM T97TRHDBAWA6DN T9RMRHDCAWVODN Aug-19-2008 Add new BOM T9RMRHDCAWVYDN Sep-28-2008 Add new BOM T97MRHDCAWSPDN T9RTRHNCAWVODN Dec-26-2008 Add new BOM... -
Page 3: Monitor Specification
19" LCD Color Monitor AOC 916Vwa 1. Monitor Specification Driving system TFT Color LCD Size 48.0cm ( 19" 16:10) LCD Panel Pixel pitch 0.285mm(H) x 0.285mm(V) 135 MHz Dot Clock Display Colors 16.2M Colors Video R, G, B Analog Interface Separate Sync. -
Page 4: Lcd Monitor Description
19" LCD Color Monitor AOC 916Vwa 2. LCD Monitor Description The LCD Monitor will contain main board, power board, 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. -
Page 5: Operation Instructions
19" LCD Color Monitor AOC 916Vwa 3. Operation Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. -
Page 6: Adjusting The Picture
19" LCD Color Monitor AOC 916Vwa 3.3 Adjusting the Picture OSD Settings Press the MENU-button to activate the OSD window. Press+ or - to navigate through the functions. Once the desired function is highlighted, press the MENU-button to activate it. If the function selected has a sub-menu, press or again to navigate through the sub-menu functions. - Page 7 19" LCD Color Monitor AOC 916Vwa...
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Page 8: Input/Output Specification
19" LCD Color Monitor AOC 916Vwa 4. Input/Output Specification 4.1 Input Signal Connector D-Sub mini 15pin Connector... -
Page 9: Factory Preset Display Modes
19" LCD Color Monitor AOC 916Vwa 4.2 Factory Preset Display Modes... -
Page 10: Panel Specification
19" LCD Color Monitor AOC 916Vwa 4.3. Panel Specification 4.3.1 General Feature M190A1-L07 is a 19” wide TFT Liquid Crystal Display module with 4 CCFL Backlight unit and 30 pins 2ch-LVDS interface. This module supports 1440 x 900 WXGA+ mode and can display 16.7M colors. The inverter module for Backlight is not built in. - Page 11 19" LCD Color Monitor AOC 916Vwa 4.3.3 Electrical Characteristics TFT Module Back-light...
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Page 12: Block Diagram
19" LCD Color Monitor AOC 916Vwa 5. Block Diagram 5.1 Software Flow Chart... - Page 13 19" LCD Color Monitor AOC 916Vwa REMARK: 1) MCU initialize. 2) Is the EEprom blank? 3) Program the EEprom by default values. 4) Get the PWM value of brightness from EEprom. 5) Is the power key pressed? 6) Clear all global flags.
- Page 15 19" LCD Color Monitor AOC 916Vwa Power Board AC input Rectifier Bridge Transformer EMI filter Diodes Rectifier and Filter Start Circuit CN902 R904, R932, R933 Feedback ON/OFF Control IC circuit OSC and MOSFET Q802, Q803 Output Convert Lamp ON/OFF Feedback...
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Page 25: Pcb Layout
19" LCD Color Monitor AOC 916Vwa 7. PCB Layout 7.1 Main Board 715G2507 1... - Page 26 19" LCD Color Monitor AOC 916Vwa...
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Page 27: Power Board
19" LCD Color Monitor AOC 916Vwa 7.2 Power Board... -
Page 28: Key Board
19" LCD Color Monitor AOC 916Vwa 7.3 Key Board... -
Page 29: Maintainability
19" LCD Color Monitor AOC 916Vwa 8. Maintainability 8.1 Equipments and Tools Requirement 1. Multi-meter. 2. Oscilloscope. 3. Pattern Generator. 4. DDC Tool with and Compatible Computer. 5. Alignment Tool. 6. LCD Color Analyzer. 7. Service Manual. 8. User Manual. -
Page 30: Trouble Shooting
19" LCD Color Monitor AOC 916Vwa 8.2 Trouble Shooting 8.2.1 Main Board (715G2507) (1) No Power No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Reinsert or check the power section Measure U201 Pin2=3.3V... - Page 31 19" LCD Color Monitor AOC 916Vwa (2) No picture No picture Measure U201 PIN2=3.3V Replace U201 X401 oscillate waveforms are normal Replace X401 Check U401 Replace U401 Check if the sync signal from computer is output and video cable is connected normally...
- Page 32 19" LCD Color Monitor AOC 916Vwa (3) White screen White Screen Measure Q602 base X401 oscillate is low level? waveform is normal Replace X401 Check Q602, Q601 is broken Check U401 or CN601 solder? Replace U401 Check Correspondent Check reset circuit of component.
- Page 33 19" LCD Color Monitor AOC 916Vwa 8.2.2 Power Board 1) No power Check L904 = 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 pin3 of IC901...
- Page 34 19" LCD Color Monitor AOC 916Vwa 2.) No Backlight Check F801=12V Check adapter and F801 Check ON/OFF signal Check Interface board or main board Check IC801 PIN12=10.5V Change on/off circuit Check IC801 PIN5 have triangle wave Change IC801 Check IC801 PIN9/PIN10 PWM wave...
- Page 35 19" LCD Color Monitor AOC 916Vwa 8.2.3 Key Board OSD is unstable or not working Connect Key Pad Board Is Key Pad Board connecting normally? Replace Button Switch Is Button Switch normally? Is Key Pad Board normally? Replace Key Pad Board...
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Page 36: White-Balance, Luminance Adjustment
= 313 ±20, y = 329 ±20, Y= 180cd/m 3. Into Factory mode of AOC 916Vwa: Press the MENU button, pull out the power cord, and then plug the power cord. Then the factory OSD will be at the left top of the panel. - Page 37 19" LCD Color Monitor AOC 916Vwa 5. Adjust the GREEN of color3 on factory window until chroma 7120 indicator reachedthe value G=100 6. Adjust the BLUE of color3 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 C.
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Page 38: Monitor Exploded View
19" LCD Color Monitor AOC 916Vwa 10. Monitor Exploded View... -
Page 39: Bom List
19" LCD Color Monitor AOC 916Vwa 11. BOM List T97MRHDLAWCKDN Location TPV Part No. Description 040G 581 26704 SHIPPING LABEL 040G 58160811A GREEN DOT LABEL 041G 68508 A CONTROL CARD 044G6002815 1A PAPER BOARD 044G9003214 CORNER PAPER 044GH600 1 HANDLE 2... - Page 40 19" LCD Color Monitor AOC 916Vwa CBPC7MRHA1Q1 CONVERSION BOARD CN202 033G3802 6 WAFER CN201 033G3802 9 WAFER 9P RIGHT ANELE PITCH CN601 033G801930F CH JS CONNECTOR 040G 45762412B CBPC LABEL R507 061G152M339 64 CHIPR 3.3 OHM +-5% 2W C405 067G 3151007KV...
- Page 41 19" LCD Color Monitor AOC 916Vwa R303 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R306 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R308 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R309 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R311 061G0402101...
- Page 42 19" LCD Color Monitor AOC 916Vwa R326 061G0402104 RST CHIPR 100 KOHM +-5% 1/16W R208 061G0402121 RST CHIP 120R 1/16W 5% R207 061G0402121 RST CHIP 120R 1/16W 5% R201 061G0402201 RST CHIP 200R 1/16W 5% R426 061G0402220 RST CHIPR 22 OHM +-5% 1/16W...
- Page 43 19" LCD Color Monitor AOC 916Vwa C410 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C406 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C404 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C403 065G0402104 15 MLCC 0402 0.1UF K 16V X5R...
- Page 44 19" LCD Color Monitor AOC 916Vwa D309 093G 6433S DIODE BAV99 SEMTECH D308 093G 6433S DIODE BAV99 SEMTECH D307 093G 6433S DIODE BAV99 SEMTECH D301 093G 6433S DIODE BAV99 SEMTECH D302 093G 6433S DIODE BAV99 SEMTECH D303 093G 6433S DIODE BAV99 SEMTECH...
- Page 45 19" LCD Color Monitor AOC 916Vwa 040G 45762412B CBPC LABEL 051G 6 4503 IC903 056G 139 3A IC PC123Y22FZ0F U101 056G 616 37 IC TPA6021A4NE4 2W*2 PDIP-20 R908 061G152M104 64 100KOHM 5% 2W C903 063G 10747410V 0.47UF 275VAC ARCO C801...
- Page 46 19" LCD Color Monitor AOC 916Vwa D906 093G 60218 SB10100FCT 0M1G1730 8120 SCREW Q90G0117 2 HEAT SINK 705GQ9KA 93002 D905 ASS"Y 090G6084 1 HEAT SINK D905 093G 60257 DIODE SB1060FCT ITO-220AB BY PAN JIT 0M1G1730 8120 SCREW IC801 056G 379 22...
- Page 47 19" LCD Color Monitor AOC 916Vwa R103 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R820 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R835 061G0603105 RST CHIPR 1 MOHM +-5% 1/10W R862 061G0603105 RST CHIPR 1 MOHM +-5% 1/10W R801 061G0603150 1F RST CHIPR 1.5 KOHM +-1% 1/10W...
- Page 48 19" LCD Color Monitor AOC 916Vwa JR804 061G1206000 RST CHIPR 0 OHM +-5% 1/4W JR803 061G1206000 RST CHIPR 0 OHM +-5% 1/4W JR802 061G1206000 RST CHIPR 0 OHM +-5% 1/4W F801 061G1206000 4 RST CHIPR 0 OHM +-5% 1/4W R910...
- Page 49 19" LCD Color Monitor AOC 916Vwa C103 065G0603474 12 MLCC 0603 0.47UF K 16V X7R C105 065G0603474 12 MLCC 0603 0.47UF K 16V X7R C106 065G0603474 12 MLCC 0603 0.47UF K 16V X7R C107 065G0603474 12 MLCC 0603 0.47UF K 16V X7R...
- Page 50 EMPTY CARTON FOR LOADING Q44G6000B3B EMPTY CARTON FOR LOADING Q44G6002101103 PAPER BOARD Q44G9066 1 Q44G9066 2 Q44G906661510A 19"W LCD AOC CARTON Q45G 88607 34 PE BAG FOR BASE Q45G 88609 88 EPE COVER Q52G6020 71 AOC PROTECT FILM 041G780061553A TCO'03 CARD...
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Page 51: Different Parts List
19" LCD Color Monitor AOC 916Vwa 12. Different Parts List Diversity of T97MRHDBAWA3DN compared with T97MRHDLAWCKDN Location Part No. Description E08901 089G 725LAA DB D-SUB E08902 089G404A15N IS POWER CORD 705GQ734435 19" LCD STAND-BASE ASS'Y A34G0289ABJ 1B STAND A34G0290ABJ 1B 33... - Page 52 19" LCD Color Monitor AOC 916Vwa WA7RWR9TQD1 Q40G 19N61539A RATING LABEL Q44G9066615 9A CARTON Q45G 88609 88 EPE COVER Q52G 1185 65 AOC MIDDLE TAPE 041G780061554A SERVICE CENTER LIST E08904 089G 17356G553 AUDIO CABLE 1800MM Q41G780A61517A Q70G900261516A CD MANUAL 040G 581689 4A...
- Page 53 19" LCD Color Monitor AOC 916Vwa Diversity of T9RMRHDCAWVYDN compared with T97MRHDLAWCKDN Location Part No. Description Remark 052G 1185 MIDDLE TAPE 089G 725HAA DB D-SUB CABLE E08903 089G1745CAA AC DVI CABLE E08903 089G1745HAA AC DVI CABLE 2nd source E08901 089G402A15N CX...
- Page 54 19" LCD Color Monitor AOC 916Vwa Diversity of T9RTRHNCAWVODN compared with T97MRHDLAWCKDN Location Part No. Description Remark 052G 1185 MIDDLE TAPE E08902 089G 725CAA DB D-SUB CABLE 2nd source E08902 089G 725LAA DB D-SUB CABLE E08903 089G1745CAA AC DVI CABLE...
- Page 55 19" LCD Color Monitor AOC 916Vwa Diversity of T9RTRHNCAWVYDN compared with T97MRHDLAWCKDN Location Part No. Description Remark E08902 089G 725CAA DB D-SUB CABLE 2nd source E08902 089G 725LAA DB D-SUB CABLE E08901 089G402A15N CX POWER CORD E08901 089G402A15N IS POWER CORD...