ViewSonic VE175-3-1 VS 10231 Service Manual

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[Page 1] ViewSonic VE175-3-1 VS 10231

Model No. VS 10231 17” Color TFT LCD Display Service Manual ViewSonic VE175-3-1 ViewSonic  381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583 (VE175-3_SM_963 Rev. 1a Dec. 2004) ...

[Page 2] ViewSonic VE175-3-1 VS 10231

Copyright Copyright ¤ 2004 by ViewSonic Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or...

[Page 3] ViewSonic VE175-3-1 VS 10231

TABLE OF CONTENTS 2. Specification 3. Front Panel Function Control Description 4. Circuit Description 6. Trouble Shooting Flow Chart 9. Block Diagram 10. Schematic Diagrams 7. Recommended Spare Parts List 1. Precautions and Safety Notices 5. Adju...

[Page 4] ViewSonic VE175-3-1 VS 10231

1. Appropriate Operation (1) Turn off the product before cleaning. (2) Use only a dry soft cloth when cleaning the LCD panel surface. (3) Use a soft cloth soaked with mild detergent to clean the display housing. (4) Use only high quality and...

[Page 5] ViewSonic VE175-3-1 VS 10231

(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist nor bend the TFT Module even momentary. At designing the enclosure, it should be taken into consideration that no bending/twisting forces ...

[Page 6] ViewSonic VE175-3-1 VS 10231

Correct Methods: Incorrect Methods: Only touch 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 will probab...

[Page 7] ViewSonic VE175-3-1 VS 10231

4 ViewSonic Corporation Confidential - Do Not Copy VE175-3 ...

[Page 8] ViewSonic VE175-3-1 VS 10231

GENERAL specification Test Resolution & Frequency 1280 x 1024 @ 60Hz Test Image Size Full Size Contrast and Brightness Controls Factory Default: Contrast = 50%, Brightness = 100% VIDEO INTERFACE Analog Input Connector DB-15 (Analog)...

[Page 9] ViewSonic VE175-3-1 VS 10231

Changing Modes Maximum Mode Change Blank Time, for image stability. Note: 1) Excluding “Auto Adjust” time 2) Under DOS mode (640 x 350, 720 x 400 & 640 x 400), there is no “Auto Adjust” feature. 3) The monitor needs to do “...

[Page 10] ViewSonic VE175-3-1 VS 10231

Horizontal/Vertical Frequency Horizontal Frequency 30-82 kHz Vertical Refresh Rate 50 – 75 Hz. Maximum Pixel Clock 140 MHz Sync Polarity Independent of sync polarity. Primar...

[Page 11] ViewSonic VE175-3-1 VS 10231

Adjusting the Screen Image Use the buttons on the front control panel to display and adjust the OnView ® controls which display on the screen. The OnView controls are explained at the Front Control Panel Main Menu with OnView controls Scroll throug...

[Page 12] ViewSonic VE175-3-1 VS 10231

. (The black border around the edge of the screen should barely touch the illuminated “active area” of the LCD dislay.) Do the following to adjust the screen image: 1 To display the Main Menu, press button [1]. 4 To adjust the control, press t...

[Page 13] ViewSonic VE175-3-1 VS 10231

Main Menu Controls Adjust the menu items shown below by using the up Iand down Jbuttons. Control Explanation Auto Adjust automatically sizes, centers, and fine tunes the video signal to eliminate waviness and distortion. Press the [2] butt...

[Page 14] ViewSonic VE175-3-1 VS 10231

Information displays the timing mode (video signal input) coming from the graphics card in your computer. See your graphic card’s user guide for instructions on changing the resolution and refresh rate (vertical frequency). VESA 1280 x 1024 @ 60...

[Page 15] ViewSonic VE175-3-1 VS 10231

Setup Menu displays the menu shown below. Explanation the menus and control screens. The Setup Menu controls are explained below. OSD Position allows you to move the on-screen display menus and control screens. OSD Timeout sets the length of time a...

[Page 16] ViewSonic VE175-3-1 VS 10231

Hot Key for Function Controls Buttons: Functions: [Up] + [Down] arrows Recall Contrast or Brightness while in the Contrast or Brightness adjustment.or recall both of Contrast and Brightness when the OSD in not on. [1] + [2] Toggle 720x400 ...

[Page 17] ViewSonic VE175-3-1 VS 10231

1. WORKING THEOREM A. DC-DC CONVERTER This brick converts the 5V input voltage to 3.3V and 1.8V for controller use. It consists of a Liner Regulator IC (AIC117), filter capacitor, and constant voltage capacitor. The AIC1117 is a low dropout ...

[Page 18] ViewSonic VE175-3-1 VS 10231

5-1 Product 17” LCD Monitor 5-2 Test Equipment Color Video Signal & Pattern (or PC with SXGA resolution) 5-3 Test Condition Before function test and alignment, each LCD Monitor should be run-in and warmed up for at least 30 m...

[Page 19] ViewSonic VE175-3-1 VS 10231

Test Signal: 640x480@60Hz Test Pattern: Full White and Black Pattern 5-4.7 R, G, B, Colors Contrast Test Signal: 1280x1024@60Hz Test Pattern: R, G, B, Color Intensities Pattern and 16 Gray Scale Pattern 5-4.8 Dead Pixel and Line Test Signal...

[Page 20] ViewSonic VE175-3-1 VS 10231

5-6 EDID Procedure DDC User’s manual 1. Hardware installation A. The EDID cable has equipped 2 different terminals; one is male 25 pin printer connector and another side is male 15 pin D-sub connecter. B. Connect the EDID cable f...

[Page 21] ViewSonic VE175-3-1 VS 10231

2. Programming procedure A. Normally, you received a EDID zip file of new model. You need to unzipped it. B. There will need the following files for DDC program: (VE175 is an example) 1. DPS.EXE 2. VE175.BAT 3. VE175.DDC 4. VE175.CF...

[Page 22] ViewSonic VE175-3-1 VS 10231

Fig-DDC2 Under Fig-DDC2, you could change the “Week” data by press “*” key and the “S/N” data by press “-“ key. Press 3 “DDC Writer/Check Data”: The Kit will start to program new data of EDID into monitor, all DDC d...

[Page 23] ViewSonic VE175-3-1 VS 10231

The message (E2PROM Acknowledge Not Echo) will display on the screen if there is any error detected by Programming PC. If error message is happened, please re-check the connection of cable and return to first step. Please refer to the Vie...

[Page 24] ViewSonic VE175-3-1 VS 10231

From Pc Signal To Monitor Printer cable 12345678 Insert4,8 ON(VE1753) (1,2,3,4,5,6,7, OFF) 21 ViewSonic Corporation Confidential - Do Not Copy VE175-3 ...

[Page 25] ViewSonic VE175-3-1 VS 10231

Monitor ISP Mode setting In the power off mode,Pressq, p, 2 keys button together keep pressing the 2 key and press then power key To wake up system. from adapter. An OSD message “ ISP Mode” will display on monitor screen. PC port...

[Page 26] ViewSonic VE175-3-1 VS 10231

3. Unzip SAMPOISP_2.5a.zip file in the same folder and Install the Setup.exe. 4. When the setup is completed, launch the Sampotech ISP program. 23 ViewSonic Corporation Confidential - Do Not Copy VE175-3 ...

[Page 27] ViewSonic VE175-3-1 VS 10231

5. When the program is ready, we have the screen as the following picture. 6. In the program picture, we need to setup 3 items. a. Click “Creat Security File” button, we have to setup 3 addresses: ISP Slave Add. “7C” Slav...

[Page 28] ViewSonic VE175-3-1 VS 10231

b. Choose the MTV type to MTV312M64. 25 ViewSonic Corporation Confidential - Do Not Copy VE175-3 ...

[Page 29] ViewSonic VE175-3-1 VS 10231

c. Click “Load MCU File” button and choose the file you want to update. 7. Click RUN button to start ISP. If the entrance procedure of ISP is correct, there will be a message box as the following picture. Click OK to program the MCU. ...

[Page 30] ViewSonic VE175-3-1 VS 10231

8. If every setting is ok, the programming procedure is as the following picture. 9. If the programming process is correct, the monitor will turn off and then turn on. Click Ok to exit the ISP mode. So far, we have finished the ISP programm...

[Page 31] ViewSonic VE175-3-1 VS 10231

6. Trouble Shooting Flow Chart 28 ViewSonic Corporation Confidential - Do Not Copy VE175-3 ...

[Page 32] ViewSonic VE175-3-1 VS 10231

29 ViewSonic Corporation Confidential - Do Not Copy VE175-3 ...

[Page 33] ViewSonic VE175-3-1 VS 10231

I/F Board QPWB-5642T8 VGA Signal Input CN1 R G B Power _In LVDS Signal Output To p anel CN4 LVDS Signa l Power 5V-In J P1 5V-in Yes I/F bard power...

[Page 34] ViewSonic VE175-3-1 VS 10231

OSD no respones Too dim The brightness is different between upper Side and downer side Partly picture without Color Vertical Horizontal None synchronousness A few of colorfully Vertical lines Even(or odd) vertical Line is dark ...

[Page 35] ViewSonic VE175-3-1 VS 10231

Rev: 1a Item ECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Q'ty 1 Accessories AC POWER CORD 1.8M A-PC-0106-0180 QACC-1126D8D--- 1 2 I/F BOARD B-00001028 DPWBN5642T8---- 1 3 INVERTER+POWER B-00001029 RUNTP5624T8---- 1 4 SW BOARD B-000...

[Page 36] ViewSonic VE175-3-1 VS 10231

Rev: 1a Item ViewSonic P/N Ref.P/N Description Location Q'ty 1 PL-PS-0715-0989 GSTN-2870D8F--A BASE BASE 1PCS 2 M-MS-0808-8124 MHNGM0019D8---- HINGE HINGE 1PCS 3 M-MS-0808-8901 LANGF2052D8---A BASE PLATE BASE PLATE 1PCS 4 M-SCW-0824-6737 X...

[Page 37] ViewSonic VE175-3-1 VS 10231

Item ViewSonic P/N Ref.P/N Description Location Q'ty 11 #N/A VRMDNVG--472J-A Resistor,SMT,0603,4.7KO,±5%,1/16W R24, R25, R71, R78 ,R79 ,R80, R82 7PCS 12 #N/A VRMDNVG--104J-A Resistor,SMT,0603,100KO,±5%,1/16W R3 1PCS 13 #N/A VRMDNVG--473J-A Re...

[Page 38] ViewSonic VE175-3-1 VS 10231

Item ViewSonic P/N Ref.P/N Description Location Q'ty 13 #N/A QCNWS0906T8029- OSD CABLE OSD CABLE 1PCS 14 #N/A PISLV0250T8---- STICK ON MAIN BRACKET STICK ON MAIN BRACKET 1PCS MODEL: CPWBGE175T8HAN- Item ViewSonic P/N Ref.P/N Description Locat...

[Page 39] ViewSonic VE175-3-1 VS 10231

41 8. Exploded Diagram And Spare Parts List 36 ViewSonic Corporation Confidential - Do Not Copy VE175-3 ...

[Page 40] ViewSonic VE175-3-1 VS 10231

Rev: 1a Item ViewSonic P/N Ref. P/N Description Q'TY 1 C-00001032 GCABA2301D8F--E FRONT COVER 1 2 M-MS-0808-9174 HDECP1929D8F--- LENS 1 3 PL-NB-0707-0214 JKNBP2309D8F--A FUNCTION KNOB 1 4 B-00001030 DPWBN5614T8---- FUNCTION PCB 1 5 HW-00001042 ...

[Page 41] ViewSonic VE175-3-1 VS 10231

Parking For Shipping 1. Parking Procedure 1.1 Paste protecting film to protect the monitor. (Figure 1) 1.2 Put the montor in the PE bag and seal the bag with tape. (Figure 2) Figure 1 ...

[Page 42] ViewSonic VE175-3-1 VS 10231

2. Disassembly Lie down the monitor on flat table Remove Base cover Remove Stand 39 ViewSonic Corporation Confidential - Do Not Copy VE175-3 ...

[Page 43] ViewSonic VE175-3-1 VS 10231

Take out 2 screws at bottom side of CAB-B Take out 2 screws at bottom side of left shielding case Take out 3 screws of IF-board 40 ViewSonic Corporation Conf...

[Page 44] ViewSonic VE175-3-1 VS 10231

Take out 3 screws at bottom side of IF-board Disassemble the Stand if need Take off power +inverter board 41 ViewSonic Corpor...

[Page 45] ViewSonic VE175-3-1 VS 10231

...

[Page 46] ViewSonic VE175-3-1 VS 10231

1 DPWBN5642T8----;---A A VE175-3 26 Title Size Document Number Rev Date: Sheet of SHEET 3 3. Input Connectors RED+ GREEN+ RED- GREEN- BLUE- BLUE+ uC_HSYNC_IN uC_VSYNC_IN SOG_MCSS VGA_CAB VGA_SDA VGA_SCL ZAN3SL_HSYNC ZAN3SL_VSYNC SHEET 4 4. gmZAN3SL B...

[Page 47] ViewSonic VE175-3-1 VS 10231

Near VGA pins Layout two size 0805/0603 EDID VGA Lay 0603 1% 1% 1% DPWBN5642T8----;---A A VE175-3 36 Title Size Document Number Rev Date: Sheet of A-RED A-HS A-GREEN A-VS A-BLUE A-RED A-VS VGA_+5V A-BLUE VGA-DET VGA-DET VGA_SCL A-HS A-GREEN VGA_SDA ...

[Page 48] ViewSonic VE175-3-1 VS 10231

Close to respective power Pins Refer Boot Strap Options 44-Pin PLCC Socket Refer Boot Strap Options Close to respective power Pins DNP gProbe Close to respective power Pins Close to respective power Pins DPWBN5642T8----;---A A VE175-3 4 6 Title Size ...

[Page 49] ViewSonic VE175-3-1 VS 10231

JST PHR-8 2.0 pitch 90 Degree Panel for HannStar SHARP +5V PCB Mounting Holes DPWBN5642T8----;---A A VE175-3 56 0/19/04 Title Size Document Number Rev Date: Sheet of BL_ADJ BL_ON/OFF RXE3- LVDS_E2 RXE0- RXO3+ LVDS_O9 RXO2- RXO1+ LVDS_E9 RXE0+ LVDS...

[Page 50] ViewSonic VE175-3-1 VS 10231

All C's not otherwise specified are 50V type. Note: All capacitors without specified value are 85 C type. All resistorwich are not otherwise specified are 1/6W. R108=200 ohms 1% Fixed 1.5Pitch 90 Degree Lay U11 1Vf R108= 0 ohm * U12 R107=120 o...

[Page 51] ViewSonic VE175-3-1 VS 10231

54 11. PCB Layout Diagrams MAIN BOARD 48 ViewSonic Corporation Confidential - Do Not Copy VE175-3 ...

[Page 52] ViewSonic VE175-3-1 VS 10231

CONTROL BOARD 49 ViewSonic Corporation Confidential - Do Not Copy VE175-3 ...

[Page 53] ViewSonic VE175-3-1 VS 10231

POWER BOARD 50 ViewSonic Corporation Confidential - Do Not Copy VE175-3 ...

[Page 54] ViewSonic VE175-3-1 VS 10231

51 ViewSonic Corporation Confidential - Do Not Copy VE175-3 ...

[Page 55] ViewSonic VE175-3-1 VS 10231

*Readers Response* Dear Readers: Thank you in advance for your feedback on our Service Manual,which allows continuous improvement of our products. We would appreciate your completion of the Assessment Matrix below, for return to ViewSonic Corpora...