Dixon P19W Service Manual Download Page 29 | Manualshive

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19" LCD Color Monitor Dixon P19W

29

7.3 Key Board

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Summary of Contents for P19W

Page 1: ...3 Operation Instruction 6 3 1 General Instructions 6 3 2 Control Button 6 3 3 Adjusting the Picture 8 4 Input Output Specification 10 4 1 Input Signal Connector 10 4 2 Factory Preset Display Modes 10...

Page 2: ...19 LCD Color Monitor Dixon P19W 2 Revision List Version Date Revision History TPV Model Name A00 Jan 26 08 Initial release T97SRXMBPHDXNN...

Page 3: ...haracteristics may create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from AOC AOC assumes no liability express or i...

Page 4: ...rtical 301 056mm Input Sync Type H V TTL Input Video Signal Analog 0 7Vp p standard 75 OHM Positive H Frequency 52 6kHz 71 4kHz V Frequency 56 76Hz Power Consumption ON Mode 37W max OFF Mode 1W Dot Cl...

Page 5: ...trol 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 Power Board Include adapter and inverter Flat Panel and...

Page 6: ...d should be connected Connect the video cable from the monitor to the computer VGA card Press the power button to turn on the monitor the power indicator will light up 3 2 Control Buttons EXTERNAL CON...

Page 7: ...then press power button to turn the monitor on NOTES Do not install the monitor in a location near heat sources such as radiators or air ducts or in a place subject to direct sunlight or excessive du...

Page 8: ...noise Clock Adjust picture Clock to reduce Vertical Line noise Image Position H Position Adjust the horizontal position of the picture V Position Adjust the vertical position of the picture Color Temp...

Page 9: ...ain menu OSD Setup H Position Adjust the horizontal position of the OSD V Position Adjust the vertical position of the OSD OSD Timeout Adjust the OSD timeout Language Language N A Set OSD language Inf...

Page 10: ...19 LCD Color Monitor Dixon P19W 10 4 Input Output Specification 4 1 Input Signal Connector 4 2 Factory Preset Display Modes...

Page 11: ...color active matrix liquid crystal display LCD that uses amorphous silicon TFT Thin Film Transistor as switching components This model is composed of a TFT LCD panel a driver circuit and a back light...

Page 12: ...19 LCD Color Monitor Dixon P19W 12 4 3 2 Optical Characteristics...

Page 13: ...19 LCD Color Monitor Dixon P19W 13 4 3 3 Electrical Characteristics TFT Module Back light...

Page 14: ...19 LCD Color Monitor Dixon P19W 14 5 Block Diagram 5 1 Software Flow Chart 1 2 N Y 5 Y N 10 Y N 12 Y N 7 Y N 6 4 3 8 9 14 11 13 Y N 15 Y N 16 17 19 Y N 18...

Page 15: ...on the LED and set it to green color Scalar initialize 10 In standby mode 11 Update the lifetime of back light 12 Check the analog port are they re any signals coming 13 Does the scalar send out an i...

Page 16: ...xon P19W 16 5 2 Electrical Block Diagram Main Board MCU RTD 2120L U401 Scalar IC RTD2025L Include ADC OSD U501 D Sub Connector CN301 H sync V sync RGB LCD Interface CN601 Key Board Control CN202 Cryst...

Page 17: ...TEA1530AT Transformer T901 Over Voltage Protect 5V Rectifier and Filter ON OFF Control Q805 Q808 PWM Control IC TL494IDR Feedback Circuit Output Circuit Transformer MOSFET Q802 Q803 Lamp ON OFF DIM C...

Page 18: ...6 12 29 3 Remove R211 R212 470ohm C203 CN201 CONN 1 2 3 4 5 6 7 8 9 R207 120R 1 16W U201 AP1117E33LA 1 2 3 VSS VOUT VIN 07 01 10 change to Elite KEY1 CMVCC ZD202 NC 1 2 C204 0 1uF 16V BKLT EN KEY0 VCC...

Page 19: ...00R 1 16W DDC1_SDA VGA_G C303 22pF C309 0 047uF T97SRXDBPHDIN A P19WH B 3 6 Thursday June 14 2007 715G2498 D K 03 input G2498 D K X 4 070614 OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME T P V T...

Page 20: ...P3 4 T0 P3 5 T1 P7 6 CLKO2 P7 7 NC NC NC NC NC NC P5 0 PWM0 P5 1 PWM1 P5 2 PWM2 P5 3 PWM3 P5 4 PWM4 06 11 24 D402 change Value from BAT54 to BAV70 CMVCC POWER_KEY R426 22R 1 16W DSUB_V 3 R405 NC Close...

Page 21: ...21 22 23 24 36 35 34 33 32 31 30 29 28 27 26 25 48 47 46 45 44 43 42 41 40 39 38 37 V1 REXT V2 RX1P V3 RX1N V4 RX0P V5 RX0N V6 RXCP V7 RXCN AVS AHS ADC_GND B B G G R R ADC_VDD BJT_B VCCK PGND TXE3 TX...

Page 22: ...onics Co Ltd Key Component R606 NC RXE3 RXO2 RXO0 LVDS_E1 RXO0 RXE2 RXOC RXO1 RXE1 LVDS_O5 RXOC RXOC PPWR_ON 4 RXE2 LVDS_E5 LVDS_E2 RXO3 PPWR_ON 1 C602 0 01uF 25V 2 LVDS_E7 CN601 1 2 3 4 5 6 7 8 9 10...

Page 23: ...ZD902 RLZ16B R942 1K 1 10W 1 C909 0 22uF 50V R938 10K 1 8W R913 NC D901 PS102R R905 NC C906 1500pF 2KV C907 0 1uF F902 0R05 1 4W D916 LL4148WP C922 NC ZD922 RLZ5 1B 1 2 D907 31DQ06FC R925 1K 1 10W 1...

Page 24: ...D808 BAW56 3 1 2 C B E C805 0 1uF Q802 AM9945N T1 PF 1 2 3 4 8 7 6 5 S G S G D D D D C838 1000pF R816 1 5K 1 10W 1 C834 0 1uF 25V D809 LL4148WP Q809 RK7002 C821 0 1uF 25V R821 1K 1 10W 1 R857 33 1 4W...

Page 25: ...uF DOWN SGND 3 0K SGND C004 NC 0 001uF 1 8K LBADC2 C005 NC 0 001uF 1 8K SGND C008 0 1uF CN001 CONN 1 2 3 4 5 6 1 435V C006 0 1uF SGND SGND CONNECTOR SW005 SW 2 1 3 4 5 MENU DOWN GND SGND C002 NC 0 001...

Page 26: ...19 LCD Color Monitor Dixon P19W 26 7 PCB Layout 7 1 Main Board...

Page 27: ...19 LCD Color Monitor Dixon P19W 27...

Page 28: ...19 LCD Color Monitor Dixon P19W 28 7 2 Power Board...

Page 29: ...19 LCD Color Monitor Dixon P19W 29 7 3 Key Board...

Page 30: ...xon P19W 30 8 Maintainability 8 1 Equipments and Tools Requirement 1 Multi meter 2 Oscilloscope 3 Pattern Generator 4 DDC Tool with a Compatible Computer 5 Alignment Tool 6 LCD Color Analyzer 7 Servic...

Page 31: ...if the picture is normal Please reinsert and make sure the AC of 100 240V is normal Measure CN201 PIN3 4 5V U201 PIN2 3 3V Reinsert or check the Adapter Inverter section X401 oscillate waveforms are n...

Page 32: ...ntrol Replace the key button Measure CN201 PIN3 4 5V U201 PIN2 3 3V Replace U501 X401 oscillate waveform is normal Replace CN201 or U201 OK OK OK OK NG NG Check HS VS from CN301 is normal Replace X401...

Page 33: ...401 oscillate waveform is normal Check Q601 is broken or CN601 solder Check Correspondent component Replace PANEL Check Correspondent component Replace U501 OK OK OK Replace X401 NG NG NG NG Check res...

Page 34: ...Check CN902 pin4 5 12V Check the voltage of C905 Check start voltage for the pin8 of IC901 Check R904 R932 R933 and Change IC901 NG Check the auxiliary voltage is bigger than 10V and smaller than 20V...

Page 35: ...nd the pin 12 of IC801 is 12V Check main board or change ON OFF signal Check the pin5 of IC801 have saw tooth wave Change IC801 Check Q802 Q803 PIN5 6 7 8 have the output of square wave at short time...

Page 36: ...8 2 3 Key Board OK OK OSD is unstable or not working Is Keypad board connecting normally Is Button Switch normally Is Keypad board normally Check main board Connect Keypad Board Replace Button Switch...

Page 37: ...stment Move cursor to F and press MENU key A Adjust 7800 color temperature 1 Switch the chroma 7120 to 7800K channel 2 The chroma 7120 will show x 296 25 y 311 25 Y 180 30 cd m2 3 Adjust the RED of co...

Page 38: ...l chroma 7120 indicator reached the value R 100 4 Adjust the GREEN of color sRGB on factory window until chroma 7120 indicator reached the value G 100 5 Adjust the BLUE of color sRGB on factory window...

Page 39: ...19 LCD Color Monitor Dixon P19W 39 10 Monitor Exploded View...

Page 40: ...19 1 INSULATING TAPE E08902 089G 725LAA DB D SUB E08907 089G179E30N 9 FFC CABLE 089G410A15N LS POWER CORD 095G8014 6D 39 HARNESS 6P 6P 150MM 0M1G 130 5120 SCREW 0M1G 340 6125 SCREW 0M1G 340 8 47 CR3 S...

Page 41: ...IPR 100 OHM 5 1 16W 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 061...

Page 42: ...4 7 KOHM 5 1 16W R414 061G0402472 RST CHIPR 4 7 KOHM 5 1 16W R604 061G0402473 RST CHIPR 47 KOHM 5 1 16W R415 061G0402682 RST CHIP 6K8 1 16W 5 R431 061G0402682 RST CHIP 6K8 1 16W 5 R439 061G0402682 RS...

Page 43: ...NPO C308 065G0402509 31 CHIP 5PF 50V NPO C310 065G0402509 31 CHIP 5PF 50V NPO FB601 071G 56K121 M CHIP BEAD FB503 071G 56K121 M CHIP BEAD FB502 071G 56K121 M CHIP BEAD FB201 071G 56K121 M CHIP BEAD F...

Page 44: ...ARD GND1 009G6005 1 GROUND TERMINAL CN801 033G8021 2E F WAFER CN802 033G8021 2E F WAFER CN803 033G8021 2E F WAFER CN804 033G8021 2E F WAFER 040G 45762420A LABEL 25X6MM 051G 6 4503 GLUE_RTV IC903 056G...

Page 45: ...G 379 22 IC TL494IDR SOIC 16 IC901 056G 379 71 IC TEA1530AT N2 SO 8 NXP Q902 057G 417 4 PMBS3904 PHILIPS SMT 04 Q811 057G 417 4 PMBS3904 PHILIPS SMT 04 Q807 057G 417 4 PMBS3904 PHILIPS SMT 04 Q806 057...

Page 46: ...5 1 10W R831 061G0603240 1F RST CHIPR 2 4 KOHM 1 1 10W R930 061G0603240 1F RST CHIPR 2 4 KOHM 1 1 10W R811 061G0603240 1F RST CHIPR 2 4 KOHM 1 1 10W R940 061G0603330 2F RST CHIPR 33 KOHM 1 1 10W R927...

Page 47: ...01 061G1206000 4 RST CHIPR 0 OHM 5 1 4W R909 061G1206100 RST CHIP 10R 1 4W 5 R910 061G1206100 RST CHIP 10R 1 4W 5 R918 061G1206101 100 1206 R919 061G1206101 100 1206 R920 061G1206101 100 1206 R935 061...

Page 48: ...16 065G0805104 32 CHIP 0 1U 50V X7R C930 065G0805104 32 CHIP 0 1U 50V X7R C931 065G0805104 32 CHIP 0 1U 50V X7R C822 065G0805105 22 CHIP 1UF 25V X7R 0805 C928 065G0805122 31 CHIP CAP 0805 1200PF J 50V...

Page 49: ...23V TRANSFORMER ASS Y Q12G6300 39 RUBBER Q20G6034 1 STAND Q20G6035 1 BASE_S5 Q24G 170 4 GLASS Q33G0150 VO 1T0100 KEY PAD Q33G0151 1 1C LENS_POWER Q33G0152 VO 1T0100 SP_LEFT Q33G0152 VO 2T0100 SP_RIGHT...

Page 50: ...19 LCD Color Monitor Dixon P19W 50 Q41G780062437A WARRANTY CARD Q45G 76 28 RN R PE BAG MANUAL Q70G9002624 5A CD MANUAL 040G 58162435A P N LABEL Q26G 800504 2 BAR CODE LABEL...

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