ViewSonic VG170mVLCDS23724-3W User Manual Download | Manualshive

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Model No.

V

L

CD

S

23724-

3

W

1

7

”

Color

TFT LCD Display

Service Manual

ViewSonic

V

G170m

ViewSonic

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

(

V

G170m-1

_

SM_

625

Rev. 1a –

Jan.2004

)

1
2
3
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Summary of Contents for VG170mVLCDS23724-3W

Page 1: ...Model No VLCDS23724 3W 17 Color TFT LCD Display Service Manual ViewSonic VG170m ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 VG170m 1_SM_625 Rev 1a Jan 2004 ...

Page 2: ...cally disclaims any warranty of merchantability 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 notify any person of such revision or changes Revision History Revision Date Description Of Changes Approval Trademarks ViewSonic is a registered trademar...

Page 3: ...6 Trouble Shooting Flow Chart 9 Block Diagram 10 Schematic Diagrams 7 Recommended Spare Parts List 1 Precautions and Safety Notices 5 Adjusting Procedure 8 Exploded Diagram And Spare Parts List ii ViewSonic Corporation Confidential Do Not Copy VG170m 11 PCB Layout Diagrams 1 2 4 5 6 7 12 16 19 20 22 ...

Page 4: ...m overheating 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 strong magnetism is generated Images on the display will become distorted and the color irregular Do not allow metal pieces or objects of any kind fall into the display from ventilation holes Slots a...

Page 5: ...esponse Time Tr 12ms Tf 4ms typ Contrast Ratio 450 1 typ Brightness 200 cd m 2 min 260 cd m 2 typ Active Display Area 337 9 mm horizontal x 270 3mm vertical AC DC adapter Input AC 100 264V 47 63 Hz Output 12V DC Dimensions WxHxD 415 mm W x 403 H mm x 229 D mm Weight Net Gross 5 4 7 6 kg unit Input connector 15 Pin D Sub Power management YES Temperature Operating 0 C 40 C Storage 20 C 60 C 2 ViewSo...

Page 6: ... 48 363kHz 13 VESA1024 x 768 70Hz 56 476kHz 14 VESA 1024 x 768 72Hz 58 036kHz 15 VESA 1024 x 768 75Hz 60 023kHz 16 MAC 1024 x 768 75Hz 60 241kHz 17 VESA 1280 x 1024 60Hz 63 981kHz 18 VESA 1280 x 1024 75Hz 79 976kHz 19 MAC 1152 x 870 75Hz 68 6kHz 2 3 D SUB CONNECTOR This section describes the pin assignment of the LCD s video connector It is called 15 Pin Mini D sub Connector Pin NO Signal Connecto...

Page 7: ...ress button UP DOWN 11 Auto Image Adjust press button 2 12 OSD lock and unlock press two buttons 1 up simultaneously for 10 seconds 13 Power lock and unlock press two buttons 1 Down simultaneously for 10 seconds 14 ALL RESET First power off the monitor un plug the AC cord then press and Power key at the same time and plug the AC cord 15 Factory Mode First power off the monitor un plug the AC cord ...

Page 8: ...irect connect to LCD panel with LVDS interface The triple ADC is to convert RGB analog signal to digital signal The gm2121 is a complete 8 bit up to 162MHz SXGA 75Hz UXGA 60Hz monolithic analog interface optimized for capturing RGB graphic signal 3 3V and 2 5V power supply is necessary The gm2121 scaling filter can combine it s advanced scaling with a pixel replication type scaling function this i...

Page 9: ...ower off the monitor un plug the AC cord and be sure the signal cable is connected D sub connected then press 2 and Power key at the same time and plug the AC cord to factory 6 ViewSonic Corporation Confidential Do Not Copy VG170m ...

Page 10: ... board S1 S5 Check OSD adjustment Check inverter Check backlight Check signal cable Check I F board Check LCD panel Check LCD panel Check I F board Check SW board JP1 Check inverter Check I F board Check power LED Check display resolution Check inverter Check I F board CN1 Check LCD cable Check I F board CN1 Check LCD panel J1 Check I F board A dark picture or a picture full of colorfully vertical...

Page 11: ... CKT POWER CKT POWER CKT YES YES NO NO OK YES Check U2 O P Data TO gm2121 CKT INPUT CKT CHECK I P R G B Video HSYNC pin 101 VSYNC pin 100 U5 to U2 Signal START CHECK Flash memory U5 CKT D_SUB connector And U6 74LVC14 INPUT CKT REPLACE U6 8 ViewSonic Corporation Confidential Do Not Copy VG170m ...

Page 12: ... 15 17 21 DATA SIGNAL END CHECK U5 OR REPLACE YES YES YES NO NO OK GM2121 CKT START END REPLACE U4 CHECK U2 RXE3 RXE3 RXE2 RXE2 RXE1 RXE1 RXEC RXEC CHECK U4 I2C SIGNAL CHECK U6 INPUT CHECK FLASH MEMORY INPUT H V BUFFER CKT And RXO3 RXO3 RXO2 RXO2 RXO1 RXO1 RXO0 RXO0 RXOC RXOC GM2121 CKT 9 ViewSonic Corporation Confidential Do Not Copy VG170m ...

Page 13: ...D SWITCH YES YES NO YES START CHECK PNL_VCC FB2 END CHECK POWER CKT 5V PANEL POWER CKT PANEL POWER CKT MENU KEY GPIO17 pin 13 UP KEY GPIO16 pin 9 SELECT KEY GPIO22 pin 8 DOWN KEY GPIO21 pin 16 POWER KEY GPIO9 pin 33 VOLUMN UP KEY GPIO10 pin 34 VOLUMN DOWN KEY GPIO6 pin 29 MUTE KEY GPIO2 pin 25 10 ViewSonic Corporation Confidential Do Not Copy VG170m ...

Page 14: ... START CHECK AUDIO 5VCC OK NG CHECK POWER AND FIX IT CHECK U12 PIN88 89 92 OK NG REPLACE U10 CHECK MCU U2 PIN CONTACT AND CIRCUIT AND FIX IT END AUDIO CKT 11 ViewSonic Corporation Confidential Do Not Copy VG170m ...

Page 15: ... SHIELDING METAL MAIN BOARD 1 17 SHIELDING METAL INVERTER BOARD M MS 0808 8128 PSLDM6443D8 SHIELDING METAL INVERTER BOARD 1 18 VIEWSONIC LOGO M MS 0808 6478 HBDGA1724D8 VIEWSONIC LOGO 1 19 DECORATION PLATE M MS 0808 8361 PISLV0214D8 DECORATION PLATE 1 20 MOVABLE BUSHING M MS 0808 8125 PGAD 1009D8 MOVABLE BUSHING 1 21 KENSINGTON BRACKET M BK 0805 0057 LANGF2063D8 KENSINGTON BRACKET 1 22 EPS PAD P F...

Page 16: ... 3 0 05M 3 0 15M 38 N A CPWBVG170T8ACE FOR AU PANEL LM170EN05 FOR AU PANEL LM170EN05 1PCS 39 N A CPWBG170MT8ACE FOR AU PANEL GENESIS FOR AU PANEL GENESIS 1PCS 40 A AD 0114 0163 RUNTP5530T8 AC AD ADAPTER HJC 4A 1 65 WHITE AC AD ADAPTER HJC 4A 1 65 WHITE 1PCS 41 N A TLAB 5441T8 A MODEL LABEL MODEL LABEL 1PCS 42 A PC 0106 0219 QACC 1092D8DWD AC POWER CORD EU 1 8M WHITE AC POWER CORD EU 1 8M WHITE 1PC...

Page 17: ...tor 3 3V IC APL1084 33 SECOND SOURCE 1PCS 53 N A VSIRT9171 33 A Power Regulator 3 3V IC RT9171 33 SECOND SOURCE 1PCS 54 N A VSIPJ1084CM 33A Power Regulator 3 3V IC PJ1084CM 33 SECOND SOURCE 1PCS 55 E IC 0401 2911 VSIAPA4835RI A AUDIO DRIVER IC APA4835RI U10 1PCS 56 N A VSILM2596S 5 Power Regulator IC LM2596S 5 U7 PWM IC 1PCS 57 E IC 0401 2898 VSIAP1501 5K5 A Power Regulator IC AP1501 5K5 SECOND SO...

Page 18: ...CE 5PCS 122 N A VCEABN1CX107M A E Capacitor 100UF 16V C64 65 100UF 16V 2PCS 123 N A VCEABN1CX107MNA E Capacitor 100UF 16V SECOND SOURCE 2PCS 124 N A VCEABN1CX226M A E Capacitor 22UF 16V C52 22UF 16V 1PCS 125 N A VCLFCN1EY225K A Capacitor SMT 0805 50V 2 2U 16V C70 1PCS 126 E L 0407 1559 RFIL 5232T8300A BEAD 100MHZ 30Ω 25 NBQ16080 FB8 11 13 14 15 16 17 18 19 20 0603 10PCS 127 E L 0407 1559 RFIL 5232...

Page 19: ...4 21 20 19 18 15 16 11 13 8 14 6 17 22 23 26 27 28 29 30 31 32 33 33 26 34 25 36 35 35 36 24 29 23 37 38 40 25 23 23 17 17 17 8 Exploded Diagram And Spare Parts List 16 ViewSonic Corporation Confidential Do Not Copy VG170m ...

Page 20: ...1 2 3 4 5 6 7 8 9 2 PACKING METHOD 10 Handle on here 17 ViewSonic Corporation Confidential Do Not Copy VG170m ...

Page 21: ...6478 HBDGA1724D8 BIRD PLATE 1 23 M SCW 0824 6804 XEASD30P06000 SCREW 13 24 M SCW 0824 6805 XBMSD30P08TV0 SCREW 1 25 M BK 0805 0058 LANGF2108D8 B REINFORCED BRACKET 2 26 B SB 0221 0508 XBMSD30P06000 SCREW 12 27 M SCW 0824 6738 XEPSN26P06000 SCREW 3 28 M SCW 0824 6739 XBMSD40P08TV0 SCREW 4 29 M SCW 0824 6741 LX BZ1687D8 SCREW 6 30 M SCW 0824 6736 XBSSD40P12000 SCREW 4 31 M SCW 0824 6737 XESSD30P0600...

Page 22: ...KER 2W 2 CON1 JP7 SW BOARD DPWBN5499T8 A 17 LCD PANEL INVERTER RUNTP5469T8 FLASH U5 CN3 DB15 SCALER GM2121 U2 CN1 30 PIN LVDS CABEL DDC EPROM 24C21A U12 JP3 TO INVERTER JP2 SWITCH MODE POWER SUPPLY CN4 CON1 C O N 3 C O N 2 C 0 N 1 AUDIO U10 J1 JP4 19 ViewSonic Corporation Confidential Do Not Copy VG170m ...

Page 23: ... 107 91 99 137 120 118 114 116 111 35 123 59 60 63 58 57 56 55 54 53 50 49 48 47 46 45 51 52 78 39 112 128 132 136 124 90 157 158 138 64 65 66 67 68 69 70 71 72 73 74 75 76 77 108 109 80 81 82 83 84 85 86 87 88 89 92 93 94 95 96 97 144 42 RED RED GREEN GREEN BLUE BLUE XTAL TCLK GPIO0 PWM0 GPIO1 PWM1 GPIO2 PWM2 GPIO3 TIMER1 GPIO4 UART_DI GPIO5 UART_DO GPIO6 GPIO7 GPIO10 AVSS_OUT_LV_O GPIO12 NVRAM_S...

Page 24: ...068uF D6 BAV99 1 3 2 R50 680 D5 BAV99 1 3 2 R57 N R72 20k C67 0 1uF R74 20k MTG2 THROUGH HOLE 4 5 6 7 9 10 1 2 3 8 11 12 R78 10K FB13 30 100M 0603 L1 64uH DIP R80 2K R48 N C99 0 33uF C73 0 01uF C63 47nF R76 2k FB26 70 100M 1812 U7A HEAT SINKA C70 1uF MTG5 THROUGH HOLE 4 5 6 7 9 10 1 2 3 8 11 12 R71 20k C109 2 2uF 0805 FB29 30 100M 0603 R53 2k R75 510 MTG1 THROUGH HOLE A 1 R70 0 C72 1uF D8 BAV99 1 ...

Page 25: ...11 PCB LAYOUT MIN BOARD 22 ViewSonic Corporation Confidential Do Not Copy VG170m ...

Page 26: ...23 ViewSonic Corporation Confidential Do Not Copy VG170m ...

Page 27: ...SW BOARD 24 ViewSonic Corporation Confidential Do Not Copy VG170m ...

Page 28: ... 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 r e S 1 t u o y a L l a u n a M e c i v r e S 2 g n i t s i l d n a m r o f e h T 3 t i n U r i a F d a B in the USA at facsimile 1 909 839 7943 You may also e mail any suggestions to the Director Quality Systems Processes marc maupin viewsonic com d o o G t n e l l ...

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