ViewSonic VA2013wm-4 Скачать руководство пользователя страница 17 | Manualshive

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ViewSonic VA2013wm-4 Скачать руководство пользователя страница 17

17

4.2 Power Board

IC901 LD7576

The LD7576X series bring high performance, combines with highly integrated functions, protections and

EMI-improve solution. It’s an ideal solution for those cost-sensitive system, reducing component count and overall

system cost.

The LD7576X series features near-lossless high voltage startup circuit, green-mode power-saving operation,

leading-edge blanking of the current sensing and internal slope compensation. They also consist with more

protections of OLP (Over Load Protection), OVP (Over Voltage Protection) and OTP (Over Temperature Protection)

to prevent the circuit damage under abnormal conditions.

The LD7576X series are available in DIP-8 and SOP-8 package.

Typical Application

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Содержание VA2013wm-4

Страница 1: ...VA2013wm 4_SM Rev 1a May 2009 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Service Manual ViewSonic VA2013wm 4 Model No VS12508 20 Color TFT LCD Display...

Страница 2: ...y or fitness for any particular purpose Further ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to...

Страница 3: ...unction Control Description 8 4 Circuit Description 13 5 Adjusting Procedure 21 6 Trouble Shooting Flow Chart 33 7 Block Diagrams 34 8 Schematic Diagrams 36 9 PCB Layout Diagrams 45 10 Exploded Diagra...

Страница 4: ...ately and consult your service technician Always unplug the monitor before cleaning it Clean the cabinet with a clean dry cloth Apply non ammonia based cleaner onto the cloth not directly onto the gla...

Страница 5: ...ouch the metal frame of the LCD panel or the front cover of the monitor Do not touch the surface of the polarizer Surface of the LCD panel is pressed by fingers and that may cause Mura Take out the mo...

Страница 6: ...soft foam pad Placing the monitor on foreign objects That could scratch the surface of the panel or cause Mura Place the monitor on the lap the panel surface must be upwards The panel is placed faced...

Страница 7: ...7 2 Specification...

Страница 8: ...l Description Use the buttons on the front control panel to display and adjust the OSD controls which display on the screen The OSD controls are explained at the top of the next page and are defined i...

Страница 9: ...down buttons 5 To save the adjustments and exit the menu press button 1 twice The following tips may help you optimize your display Adjust the computer s graphics card so that it outputs a 1600 x 900...

Страница 10: ...endent adjustment of red R green G and blue B The factory setting for this product is 6500K 6500 Kelvin sRGB This is quickly becoming the industry standard for color management with support being incl...

Страница 11: ...Vertical Position moves the screen image left or right and up or down H Size Horizontal Size adjusts the width of the screen image Fine Tune sharpens the focus by aligning text and or graphics with pi...

Страница 12: ...displayed For example with a 15 second setting if a control is not pushed within 15 seconds the display screen disappears OSD Background allows the user to turn the OSD background On or Off Memory Re...

Страница 13: ...0x1050 75 resolution and NT68167U operates at frequencies up to 190MHz suitable for LCD monitor up to 1920x1080 75 resolution The NT68167 also has a built in noise reduction function to provide more s...

Страница 14: ...14 Pin Assignment...

Страница 15: ...15...

Страница 16: ...ll regulated outputs of 1 25 to 5 0 with 6 4V to 18V input supply Pin Descriptions Name I O Pin Function Adj GND I 1 A resistor divider from this pin to the Vout pin and ground sets the output voltage...

Страница 17: ...ost The LD7576X series features near lossless high voltage startup circuit green mode power saving operation leading edge blanking of the current sensing and internal slope compensation They also cons...

Страница 18: ...pin in UC384X By connecting a photo coupler to close the control loop and achieve the regulation A high quality ceramic capacitor X7R is required for general applications 102pF at least 3 CS Current s...

Страница 19: ...ncy operation The controller provides a soft start operation current and voltage regulation overvoltage and over current protection high drive capability The control logic provides a regulated ignitio...

Страница 20: ...g Resistor for Striking Frequency 5 GNDA Signal Ground 6 O PDR2 High Side Driver Output 2 7 GNDP Power Ground 8 O NDR2 Low Side Driver Output 2 9 O NDR1 Low Side Driver Output 1 10 O PDR1 High Side Dr...

Страница 21: ...Power Button Locked will display for 3 seconds With or without this setting after a power failure your LCD display s power will automatically turn ON when power is restored Power Button Unlock Press a...

Страница 22: ...ress MODE button 8 Switch the MEM channel to Channel 2 with up or down arrow on Chroma C7120 9 The LCD indicator on Minolta CA210 will show x 313 12 y 329 12 d Adjust 5000K color temperature 1 Switch...

Страница 23: ...23 5 2 Firmware Upgrade Procedure 5 2 1 Equipment needed VA2013wm 4 PC Personal computer LPT cable Firmware upgrade program ISP Board Part No 715LT035 A LPT Cable VGA Cable...

Страница 24: ...24 Hardware Connect status 5 2 2 Update the NOVATEK S firmware You should jump the pin to For Flash at ISP Board Double click Writer exe Connect to the PC LPT Connect to the VSC VA2013wm 4...

Страница 25: ...25 This tool can auto detect the right SCALAR programe speed the process as follow...

Страница 26: ...26...

Страница 27: ...27 When auto detect is finished click Load File then chosse the firmware that you want to update...

Страница 28: ...28 Click Auto then the update will begin Wait for a moment until the bar is 100 the program windows will show Programing Success This means the update is successful...

Страница 29: ...to the monitor you have to do the DDC key in 5 3 1 Equipment Needed VA2013wm 4 PC Personal computer LPT cable 12V DC Firmware upgrade program DDC Card 5 3 2 Install software You must install the at t...

Страница 30: ...t update the EDID firmware please cut off the 5th Pin of the VGA cable that connects the monitor side Picture as below Connect to the PC LPT Connect this port to the VSC VA2013wm 4 s VGA 12V Input Cut...

Страница 31: ...31 For analog a Double click appear as follow Figs b Click c Key in the Serial Number printed on the barcode label then click OK...

Страница 32: ...32 d Unit appears the following Fig writer completed 12 codes for example...

Страница 33: ...33 6 Troubleshooting Flow Chart...

Страница 34: ...oard Scalar IC NT68167 Include MCU ADC OSD U401 D Sub Connector CN101 EEPROM PM25LV020 100SCE 2MB U402 H sync V sync RGB LCD Interface CN403 Key Control interface CN402 Crystal 12MHz X401 EEROM M24C02...

Страница 35: ...Rectifier and Filter Start Circuit R908 PWM Control IC Transformer T901 Diode rectifier Filter 5V Transformer PT801 Inverter Connector ON OFF Feedback Circuit Over Voltage Protect MOSFET Q805 Q806 PWM...

Страница 36: ...P T3M T4M T4P T5P T5M T6M T6P T7P T7M TCLK1M TCLK1P BL_ADJ Volume Mute Panel_ID PANEL_EN BL_ON VSIN HSIN RIN RIN GIN GIN SOGI BIN BIN DDC_SDA DDC_SCL VGA_DET VCC3 3 5V VCC1 8 DDC_WP 5VCC 4 PANEL INTER...

Страница 37: ...A0 1 A1 2 A2 3 VSS 4 SDA 5 SCL 6 WP 7 VCC 8 U101 M24C02 RMN6TP DDC_WP 5 5V DSUB_5V 5V 5 6 7 DDC_SDA DDC_SCL R119 4K7 1 16W 5 R120 4K7 1 16W 5 R121 4K7 1 16W 5 3 1 2 D101 BAV70 DSUB_5V V_Sy nc VGA_B V...

Страница 38: ...ohm bead Inte 1 8V under 1920x1080 Ext 1 8V in 1920x1080 FB407 300 Ohm bead FB405 300 Ohm bead C439 C444 2 2uF C445 NC if ripple in spec FB403 FB406 0 ohm C439 NC C0603 C406 0 1UF 16V R449 100R 1 16W...

Страница 39: ...5 T2M 5 T1M 5 TCLK1P T1P T3P T2P T1M T2M T0M T0P Q404 MMBT3904 R433 10K 1 16W 5 R436 56K 1 16W 5 R435 22K 1 16W 5 C441 0 1UF 16V R415 4K7 1 16W 5 C420 0 1UF 16V S 1 S 2 S 3 G 4 D 8 D 7 D 6 D 5 Q403 N...

Страница 40: ...3 5V VCC3 3 5V BKLT EN R706 4K7 1 16W 5 Volume 5 BL_ADJ 5 C706 0 1UF 16V TO252 Mute 5 BL_ON 5 Panel_ID 5 5V 4 5 6 VCC3 3 5 C705 0 1UF 16V ADJ GND 1 VOUT 2 VIN 3 U703 NC VCC1 8 5 R708 100R 1 16W 5 TO25...

Страница 41: ...00 3300pF 250V 5Vi 1 2 HS1 HEAT SINK Q901 1 2 FB901 BEAD R913 5 1 OHM 1 4W 5 R917 10R 1 4W 5 C914 470pF 1 2 GND1 GND C911 1500PF2KV D904 FR103 D903 FR107 1 2 HS2 HEAT SINK D901 D906 R906 100K OMH 2W 5...

Страница 42: ...817 2PF6KV D801 IN4148 R809 1M 1 10W 5 R836 56KOHM 5 1 10W R811 82 KOHM 1 1 8W C804 1000uF 25V VSEN 1 SSTCMP 2 CT 3 RT1 4 GNDA 5 PDR2 6 GNDP 7 NDR2 8 NDR1 9 PDR1 10 VDDA 11 TIMER 12 PWM 13 ISEN 14 OVP...

Страница 43: ...S 2 RIN 3 GND 4 GND 5 LIN 6 VOLUME 7 SE BTL 8 LOUT 9 VDD 10 LOUT 11 GND 12 GND 13 ROUT 14 VDD 15 ROUT 16 U601 IC APA2071JI TUG 3 1W DIP 16 R603 10K 1 10W 5 Rin Q608 NC C612 0 1uF 16V R609 10K 1 10W 5...

Страница 44: ...1 0 1uF 16V 1 3 5 2 4 6 8 7 9 10 SW01 SW UP DOWN DOWN 1 2 3 4 5 6 CN001 CABLE GND R002 3K 1 10W 1 KEY2 KEY1 R003 2K OHM 1 1 10W R004 2K OHM 1 1 10W OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME...

Страница 45: ...45 9 PCB Layout Diagrams 9 1 Main Board...

Страница 46: ...46...

Страница 47: ...47 9 2 Power Board...

Страница 48: ...48...

Страница 49: ...49 9 3 Key Board...

Страница 50: ...50 10 Exploded Diagram and Spare Parts List 10 1 EPL...

Страница 51: ...L NA 1 6 MAIN BOARD CBPCRNFVWQ2 NA 1 7 POWER BOARD NA 1 8 MAINFRAME NA 1 9 SPK 4 OHM 3 W 57 5X23 180 180mm NEO NA 1 10 REAR COVER NA 1 11 HINGE ASS Y NA 1 12 STAND NA 1 13 BASE NA 1 14 RUBBER PAD NA 4...

Страница 52: ...52 PPL Item Description Part Number Q ty 1 D SUB CABLE NA 1 2 AUDIO CABLE NA 1 3 POWER CORD NA 1 4 BASE NA 1 5 EPS TOP NA 1 6 LCD MONITOR NA 1 7 CD MANUAL NA 1 8 EPS BOTTOM NA 1 9 CARTON NA 1...

Страница 53: ...S Y AM1G1740 10120 SCREW M4 10 Q34G0590 KR 1B0100 STAND Q34G0591 KR 1B0130 BASE Q37G0137012 HINGE ASS Y 750GLG200W1A13N000 PANEL LM200WD1 TLA1 GZ LGD 756GQ8CB VV075 MAIN BOARD CBPCRNFVWQ2 SMTCR U402 1...

Страница 54: ...02101 RST CHIPR 100 OHM 5 1 16W R104 061G0402101 RST CHIPR 100 OHM 5 1 16W R108 061G0402101 RST CHIPR 100 OHM 5 1 16W R110 061G0402101 RST CHIPR 100 OHM 5 1 16W R111 061G0402101 RST CHIPR 100 OHM 5 1...

Страница 55: ...R407 061G0402392 RST CHIP 3 9K 1 16W 5 R427 061G0402392 RST CHIP 3 9K 1 16W 5 R428 061G0402392 RST CHIP 3 9K 1 16W 5 R465 061G0402432 RST CHIP 4K3 1 16W 5 R466 061G0402471 RST CHIPR 470 OHM 5 1 16W R4...

Страница 56: ...33PF J 50V NPO C101 065G0402473 12 CHIP 0 047UF 16V X7R C105 065G0402473 12 CHIP 0 047UF 16V X7R C107 065G0402473 12 CHIP 0 047UF 16V X7R C109 065G0402473 12 CHIP 0 047UF 16V X7R C110 065G0402473 12...

Страница 57: ...M U101 056G1133918 IC AT24C02BN SH T 8 SOIC 709G3225 QA001 CONSUMPTIVE ASS Y KEPC8QJ2 KEY BOARD SW01 077G 500 5F XL DOME SWITCH 5PCS CN001 089G 76J 6 3 FFC CABLE 6P 220MM P1 0 709G3265 QM001 CONSUMPTI...

Страница 58: ...V M 12 5 20MM C604 067G215S4713LV LOW ESR EC 470UF 16V M 10 12 5MM C922 067G215S4713LV LOW ESR EC 470UF 16V M 10 12 5MM C921 067G215V1023LS LOW ESR EC 1000UF 16V M 12 5 16MM C907 067G315Z12115L EC 120...

Страница 59: ...10 KOHM 5 1 10W R842 061G0603103 RST CHIPR 10 KOHM 5 1 10W R843 061G0603103 RST CHIPR 10 KOHM 5 1 10W R844 061G0603103 RST CHIPR 10 KOHM 5 1 10W R845 061G0603103 RST CHIPR 10 KOHM 5 1 10W R806 061G06...

Страница 60: ...4W RJ812 061G1206000 RST CHIP MAX 0R05 1 4W RJ813 061G1206000 RST CHIP MAX 0R05 1 4W RJ814 061G1206000 RST CHIP MAX 0R05 1 4W R917 061G1206100 RST CHIPR 10 OHM 5 1 4W R903 061G1206101 RST CHIPR 100 O...

Страница 61: ...00V X7R C803 065G1206104 32 CHIP 0 1UF 25V X7R 1206 D803 093G 64 33 DIO SIG SM BAV99 PHSE R D806 093G 64 42 PP BAV70 SOT 23 D807 093G 64 42 PP BAV70 SOT 23 D808 093G 64 42 PP BAV70 SOT 23 ZD803 093G 3...

Страница 62: ...YAGEO R608 061G0805000 RST CHIP MAX 0R05 1 8W C601 065G0603474 12 MLCC 0603 0 47UF K 16V X7R C602 065G0603474 12 MLCC 0603 0 47UF K 16V X7R C603 065G0603474 12 MLCC 0603 0 47UF K 16V X7R C606 065G060...

Страница 63: ...URE CARD Q41G780070982A VA2213WM WW Q70G2401709 1D VA2013WM CD MANUAL Q40G0001624 4A PALLET LABEL 040G 581 26704 SHIPPING LABEL 040G 58162435A P N LABEL FOR MANUAL PE BAG Q40G 20N709 2A RATING LABEL Q...

Страница 64: ...64 11 Recommended Spare Parts List NA...

Страница 65: ...12 Different Parts List Diversity of TA9GNFDCWBVWAC compared with TA9GNFDBWBVWAN Location Part Number Description Remark 089G420A18N IS POWER CORD 32 D001922 750GLG200W1A13N0VS PANEL LM200WD1 TLA1 GZ...

Страница 66: ...6 Troubleshooting Flow Chart 7 Block Diagrams 8 Schematic Diagrams 9 PCB Layout Diagrams 10 Exploded Diagram and Spare Parts List 11 Recommended Spare Parts List 12 Different Parts List B Are you sat...

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