ViewSonic VG150m-1 User Manual Download

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ViewSonic V

G150m

-1

Model No.VLCDS23587

Service Manual

15” Color TFT LCD Display

( VG150m-1_SM_547-R ev.1 a –Dec 2 0 02 )

ViewSonic “ 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

G150mb

-1

VLCDS23587

Summary of Contents for VG150m-1

Page 1: ...ic VG150m 1 Model No VLCDS23587 3W Service Manual 15 Color TFT LCD Display VG150m 1_SM_547 R ev 1 a Dec 2 0 02 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 VG150mb 1 VLCDS23...

Page 2: ...plied with respect to the contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose Further ViewSonic reserves the right to revise this publicati...

Page 3: ...rd I O Connections 8 4 3 Inverter Board I O Connections 8 4 4 Theory of Circuit Operation 9 Chapter 5 Adjustment 24 Chapter 6 Troubleshooting Flow Chart 26 6 1 Figures of Wave Form 26 6 2 Troubleshoot...

Page 4: ...heating Do not block ventilation slots and openings with objects or install the display in a place where ventilation may be hindered Do not install this display near a motor or transformer where stron...

Page 5: ...separation between equipment and receiver Connect into an outlet on circuit different from that to which the receiver is connected Consult the dealer or an experience radio TV technician for help FCC...

Page 6: ...aximum Resolution 1024x768 Video Bandwidth 85 MHz nominal Display Area 304 1 mm H x 228 1 mm V Power Voltage 87 264VAC 47 63 Hz Power Consumption 40W max Adaptor plus monitor Operating Conditions Temp...

Page 7: ...31 47 kHz 70 09 Hz VGA 720x400 31 46 70 08 VGA 640x400 31 46 70 08 VGA 640x480 31 47 60 05 VESA 640x480 37 86 72 81 VESA 640x480 37 50 75 00 MAC 640x480 Composite 35 00 66 66 VESA 800x600 35 15 56 25...

Page 8: ...e Pin Number Pin Description 1 Red video input 2 Green video input 3 Blue video input 4 Ground 5 Ground 6 R video ground 7 G video ground 8 B video ground 9 5V 10 Ground 11 No Connection 12 SDA 13 Hor...

Page 9: ...3 Disassembly Assembly Instructions ViewSonic Corporation 6 Confidential Do Not Copy VG150m mb...

Page 10: ...ter 5V VLCD 3 3V 12V Clamp Video Gain Video Level ADC MUX Scaling Engine Sync detect Phase calibration OSD Generator OSD overlay MUX MCU port Dithering Output control Output LCD Panel R G B Sync Buffe...

Page 11: ...l Do Not Copy VG150m mb P5 CONNECTION OSD CONTROL Pin Description 1 POW 1 2 GND 3 LED1 4 LED2 5 KEY1 6 KEY2 7 KEY3 8 KEY4 9 10 11 MUTE 4 3 Inverter Board I O Connections NOTE MANUFACTURER S NAME MUST...

Page 12: ...rol board POWER SYSTEM This product uses an external power adapter to provide DC 12V It is the source of other voltages 5VX 3 3VX and VLCD The voltage of 5VX is produced by regulator LM2596 5V U5 and...

Page 13: ...Mascot U1 pin38 VGA_VSYNC pin39 VGA_HSYNC or pin40 SOGI and the image processing Then Mascot will detect the signal type if it is separate SYNC composite SYNC or SOG MPU U6 reads the input signal type...

Page 14: ...has intelligently adaptive sub algorithms that will automatically optimize the display quality for different images the text is sharper and the graphics is smoother The build in analog interface incl...

Page 15: ...external use The exact phase delay with respect to VCO output clock is register programmable and can be formulated as follows T DELAY Tclk phase 4 0 32 Where there is a systematic delay Due to the per...

Page 16: ...Clock Re Generator Functional Block Diagram FIG3 3 Clock Re Generator ViewSonic Corporation 13 Confidential Do Not Copy VG150m mb...

Page 17: ...c cycles The basic cycle is defined by design which also has four kinds of basic cycles can be chosen by programming Sync Processor Sync Processor is used to detect input source analog RGB or 24 bit R...

Page 18: ...ler is used to generate synchronization signals which are used for internal Mascot V Within Capture Controller block FIG3 4 incoming data are processed filtered minimized and aligned with controlling...

Page 19: ...tes write and read control signal to access zoom buffer Vertical Zoom Filter and Horizontal Zoom Filter The Mascot V scaling engine uses an advanced scaling technology and provides high quality scalin...

Page 20: ...onds to the code and then display the character on LCD panel There are 320 memory spaces from 0 to 319 in SRAM It is sequentially mapped to the OSD frame started from the upper right corner and goes h...

Page 21: ...nearity of RGB data It is used to adjust the RGB data according to the individual display characteristics and human eyes favorite In addition the gamma table may be used for contrast brightness and wh...

Page 22: ...FIG3 8 Mascot function block ViewSonic Corporation 19 Confidential Do Not Copy VG150m mb...

Page 23: ...nd cost effective controller for those applications which demand up to 32 I O pins for PDIP package or up to 36 I O pins for PLCC QFP package or applications which need up to 64K byte flash memory eit...

Page 24: ...operation instruction Page free jumps 8 bit Unsigned Division 8 bit Unsigned Multiply BCD arithmetic Direct Addressing Indirect Addressing Nested Interrupt Two priority level interrupt A serial I O po...

Page 25: ...FIG4 2 MPU Control Block ViewSonic Corporation 22 Confidential Do Not Copy VG150m mb...

Page 26: ...is a dual 2 W BTL Balanced Transformer Less audio power amplifier IC Speakers and microphone will stay on while the rest of the monitor is in power saving See FIG5 1 FIG5 1 Audio block diagram ViewSon...

Page 27: ...JUST CONTRAST BRIGHTNESS Adjustment Bar COLOR ADJUST 6500K default 9300K default USER RED Adjustment Bar GREEN Adjustment Bar BLUE Adjustment Bar INFORMATION LANGUAGE ENGLISH FRANCAIS DEUTSCH ITALIANO...

Page 28: ...estored after a power failure If the power button is not in the locked mode then power should return to its previous state when power is restored after a power failure The power button lock will be de...

Page 29: ...form Input Signal VGA Card Sis 620 Resolution 1024X768 HSYNC 48 5 KHz VSYNC 60Hz CH1 INPUT HSYNC PIN13 OF P8 CH2 INPUT VSYNC PIN14 OF P8 CH1 VGA_HSYNC PIN39 OF U1 CH2 VGA_VSYNC PIN40 OF U1 ViewSonic C...

Page 30: ...CH1 DISP_HSYNC PIN79 OF U1 CH2 DISP_VSYNC PIN77 OF U1 CH1 DISP_DE PIN76 OF U1 CH2 DISP_VSYNC PIN77 OF U1 ViewSonic Corporation 27 Confidential Do Not Copy VG150m mb...

Page 31: ...CH1 DISP_DE PIN76 OF U1 CH2 DISP_HSYNC PIN79 OF U1 CH1 BLU_OUTB_4 PIN116 OF U1 CH2 HSCLK PIN78 OF U1 ViewSonic Corporation 28 Confidential Do Not Copy VG150m mb...

Page 32: ...ode 1 Check video cable 2 Is the timing supported 1 Is inverter OK 2 Is P3 connected ok Check U1 input well include VGA_VSYNC VGA_HSYNC or SOGI and RI GI BI Does U1 output It means data to panel 1 Are...

Page 33: ...1 Check video cable 2 Check settings of host system Check RI GI BI level 1 Check resistor arrays of U1 outputs 2 Check power of voltage 3 Check U1 to P1 P2 1 Is P1 P2 connected well 2 Is panel working...

Page 34: ...correct 3 3VX correct The voltage is about 12V 1 Check power adaptor 2 Check power cable 3 Check FUSE1 The voltage is about 4 9V 1 Check U5 output 2 Check L17 frequency The voltage is about 4 9V Check...

Page 35: ...N0 Yes TROUBLE OF DDC READING Start Analog DDC OK Support DDC1 2B 1 Analog cable ok 2 Check signal U14 SDA SCL 3 Check IIC protocol END ViewSonic Corporation 32 Confidential Do Not Copy VG150m mb...

Page 36: ...7 Schematics Diagrams ViewSonic Corporation 33 Confidential Do Not Copy VG150m mb ViewSonic Corporation...

Page 37: ...ViewSonic Corporation 34 Confidential Do Not Copy VG150m mb ViewSonic Corporation...

Page 38: ...ViewSonic Corporation 35 Confidential Do Not Copy VG150m mb ViewSonic Corporation...

Page 39: ...ViewSonic Corporation 36 Confidential Do Not Copy VG150m mb ViewSonic Corporation...

Page 40: ...8 PCB Layout ViewSonic Corporation 37 Confidential Do Not Copy VG150m mb...

Page 41: ...ViewSonic Corporation 38 Confidential Do Not Copy VG150m mb...

Page 42: ...ViewSonic Corporation 39 Confidential Do Not Copy VG150m mb...

Page 43: ...ViewSonic Corporation 40 Confidential Do Not Copy VG150m mb...

Page 44: ...ViewSonic Corporation 41 Confidential Do Not Copy VG150m mb...

Page 45: ...VG150MB 1701 0203 9020 1 22 M MS 0808 8065 REAR LOGO PLATE VIEWSONIC PLASTIC 1936 1000 0240 1 22 M MS 0808 7668 REAR LOGO PLATE VIEWSONIC G7397 VG150M 1936 1000 0270 1 22 M MS 0808 8349 REAR LOGO PLA...

Page 46: ...982 IC AT24C02N 10SC 2 7 SMD 8PIN 0430 3001 1011 U14 27 E IC 0401 2346 IC AMC431 SMD SOT 23 3PIN 0430 6000 4051 U2 28 E IC 0401 2648 IC MAX810LTR 3PIN SOT 23 0430 7010 9058 U3 29 E IC 0401 2521 IC 74L...

Page 47: ...1682 0312 PACKING ASS Y VG150m SHARP ITEM VIEWSONIC P N DESCRIPTION REFERENCE NUMBER LOCATION Q TY M S 1 A AD 0114 0160 AC TO DC ADAPTOR LSE9901B1250 WHITE 0300 7012 4204 1 2 A PC 0106 0127 POWER COR...

Page 48: ...003 1020 9 23 TAP SCREW TP M2 0 6 0L NI 1721 1020 0620 10 24 M MS 0808 4677 V SONIC LOGO AL PLATE 1936 1000 0100 1 25 M MS 0808 7668 REAR LOGO PLATE VIEWSONIC G7397 1936 1000 0270 1 26 M MS 0808 8067...

Page 49: ...WAFER 2 00MM 4P 90 KINK 0451 2000 0464 P10 1 23 M MS 0808 8056 CONN B TO FPC IL FHR 40P IL FHR F40S HF 0303 1000 0403 P2 1 24 M MS 0808 8057 CONN B TO FPC FH12 40S 0 5SH 40PIN 0303 1000 0404 CS 25 M...

Page 50: ...C 0404 3712 C M MULTI 0 1UF 25V Y5V 0603 0111 3104 2536 C26 1 75 C M MULTI 5600PF 50V X7R 0805 0111 3562 5115 C27 1 76 C M MULTI 150PF 50V NPO 0603 0111 3151 5106 C28 1 77 E C 0404 3712 C M MULTI 0 1...

Page 51: ...BAV70 SMD SOT 23 0390 5001 8293 D19 1 125 CHIP BEAD CORE 1 5uH MLI 201209 1R5K 0370 0000 6952 L1 1 126 CHIP BEAD CORE 100ohm MLB 160808 0100B N3 0370 0000 7053 L10 1 127 CHIP BEAD CORE 100ohm MLB 160...

Page 52: ...F 4 7Kohm 1 10W J 0603 0130 4701 0055 R11 1 174 E R 0405 5794 RES CF 0 0ohm 1 10W J 0603 0130 0000 0055 R112 1 175 E R 0405 6277 RES CF 1 0Kohm 1 10W J 0603 0130 1001 0055 R113 1 176 E R 0405 6287 RES...

Page 53: ...0603 0130 0000 0055 R61 1 225 RES CF 470Kohm 1 10Wohm J 0603 0130 4703 0055 R63 1 226 E R 0405 6287 RES CF 4 7Kohm 1 10W J 0603 0130 4701 0055 R65 1 227 E R 0405 6287 RES CF 4 7Kohm 1 10W J 0603 0130...

Page 54: ...4 ZENER RLZ5 6B 5 45V 5 73V 1 2W SMD 0400 0541 2012 ZD1 1 265 ZENER RLZ5 6B 5 45V 5 73V 1 2W SMD 0400 0541 2012 ZD2 1 266 ZENER RLZ5 6B 5 45V 5 73V 1 2W SMD 0400 0541 2012 ZD3 1 267 ZENER RLZ5 6B 5 45...

Page 55: ...080 0240 2 3 M MS 0808 8184 WH PH4P 1061 26 110 310mm 0460 1004 0101 1 4 M MS 0808 7906 WH PH5P PH5P 1061 26 40mm 0460 1005 0120 1 5 M MS 0808 7664 WH PH11P PH11P 1061 26 90mm core 1 0460 1011 0020 1...

Page 56: ...Y VG150m mb ITEM VIEWSONIC P N DESCRIPTION REFERENCE NUMBER LOCATION Q TY M S 1 M MS 0808 8058 LED L 3WYGW 3 0440 5000 0030 LED1 1 2 PCB DISPLAY BD V0 159 0 18 0 1 6t 0170 1740 0660 PCB01 1 3 WAFER 2...

Page 57: ...2 00MM 4P 90 KINK 0451 2000 0464 P10 1 23 M MS 0808 8056 CONN B TO FPC IL FHR 40P IL FHR F40S HF 0303 1000 0403 P2 1 24 M MS 0808 8057 CONN B TO FPC FH12 40S 0 5SH 40PIN 0303 1000 0404 CS 25 M MS 0808...

Page 58: ...C 0404 3712 C M MULTI 0 1UF 25V Y5V 0603 0111 3104 2536 C26 1 75 C M MULTI 5600PF 50V X7R 0805 0111 3562 5115 C27 1 76 C M MULTI 150PF 50V NPO 0603 0111 3151 5106 C28 1 77 E C 0404 3712 C M MULTI 0 1...

Page 59: ...BAV70 SMD SOT 23 0390 5001 8293 D19 1 125 CHIP BEAD CORE 1 5uH MLI 201209 1R5K 0370 0000 6952 L1 1 126 CHIP BEAD CORE 100ohm MLB 160808 0100B N3 0370 0000 7053 L10 1 127 CHIP BEAD CORE 100ohm MLB 160...

Page 60: ...hm 1 10W J 0603 0130 4701 0055 R11 1 174 E R 0405 5794 RES CF 0 0ohm 1 10W J 0603 0130 0000 0055 R112 1 175 E R 0405 6277 RES CF 1 0Kohm 1 10W J 0603 0130 1001 0055 R113 1 176 E R 0405 6287 RES CF 4 7...

Page 61: ...0603 0130 0000 0055 R61 1 225 RES CF 470Kohm 1 10Wohm J 0603 0130 4703 0055 R63 1 226 E R 0405 6287 RES CF 4 7Kohm 1 10W J 0603 0130 4701 0055 R65 1 227 E R 0405 6287 RES CF 4 7Kohm 1 10W J 0603 0130...

Page 62: ...0LTR 3PIN SOT 23 0430 7010 9058 U3 1 258 IC LM810M3 4 63 3PIN SOT 23 3 0430 7010 9004 CS 259 E IC 0401 2521 IC 74LCX14 SMD 14PIN SOIC 0430 1004 4035 U4 1 260 E IC 0401 2373 IC LM2596S 5 0 TO 263 5PIN...

Page 63: ...the content after reading VG150m mb series Service Manual e m a N e l t i T y n a p m o C d d A l e T x a F l i a m E m e t I t n e l l e c x E d o o G r i a F d a B t n e t n o C l a u n a M e c i v...

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