ViewSonic VLCDS24349-1 Manuel d'utilisateur

Service ManualViewSonic VG500b-1Model No. VLCDS24349-115” Digital Controlled Color Monitor (VG500b-1_SM_574-Rev. 1.0-October 2002)ViewSonic381 Brea

15 OG7 Green data signal of odd pixel 16 OG6 Green data signal of odd pixel 17 OG5 Green data signal of odd pixel 18 OG4 Green data signal of

10 VDDD DC_3.3V for panel VCC 11 VDDD DC_3.3V for panel VCC 12 VDDD DC_3.3V for panel VCC 13 VDDD DC_3.3V for panel VCC 14 VDDD DC_3.3V for

9 GND Ground 10 DC+12V DC+12V 11 GND Ground 12 SENSOR Detect audio I/P signal CN830 (S5B-PH-K): Connect to inverter Pin No. Symbol Function 1 D

No picture Appear Does the LED light up LED display is amber Is it entering into power saving mode Restart PC signal to ensure H. V. sync are not abse

The Voltage of U220 #2 is 3.3V Replace U220 Yes NoNextReplaceD220NoThe Voltage after D220 is 2.5V Yes Replace X400, C447, C448 NoReplace U400 (gm2115)

The Ver. Or Hor. Sync. Does not hold Are the output ofgm2115 (CLK, H, V, DE) normal Tighten two flex cables at CN501, CN502 EndReplaceU400EndAre two f

Check if Audio jack properly insert Yes Press mute key again to release YESNOCheck if CN701 is connected to CN101 properly NoReplace U701U701 #1 volta

Panel adjustment: 1. Select 1024 x 768@60Hz mode, and Crosshatch pattern 2. Press “ Auto image set up” -------Direct access “2” Key 3. Brightness s

8.1 Inverter Board Circuit The diagram of inverter board circuit is shown in Appendix (PWB-0420_01). The inverter supplies power for backlight for th

8. ELECTRICAL PARTS LIST16VG500b-1 Confidential – Do Not CopyNo Part Name ViewSonic P/N Stock No Qty1 F/C C-FP-0301-0896 57337158002 CPT PANEL E-CRT-0

CopyrightCopyright¤ 2002 by ViewSonic Corporation. All rights reserved. No part of this publication may bereproduced, transmitted, transcribed, stor

ViewSonic Corporation 17VG500b-1 Confidential – Do Not CopyS-4 SCREW M3X6 7132160651S-5 SCREW M3X8 7134161186S-6 SCREW M4X8L 7004261116S-7 SCREW M3X4

Item# LocNo Part Name ViewSonic P/N Stock No Qty1 U200 PST9129 E-IC-0401-256566400055542 U201 S524C80D41 E-IC-0401-257466470518593 Q201 DTC114TKA/KSR1

˄˄˃ˈˉˈ˄˅ˆˆˉˈˉˊˋˌ˅ˇˆˇˈˉ˄ˊ˄ˋˋ˅˃˄ˌ˅˄˅ˆ˅ˇ˅ˈ˄ˈ˅˅˅ˉ˅ˊ˅ˋ˅ˌˆ˃ˆˆˊˇˌˉˉˉˆ˄ˆ˅ˈˈˇˆˇˆˆˆˈˇˆˊˆˋˆˌ5152539.EXPLODED DIAGRAM AND SPARE PARTS LISTViewSonic Corporation 19

ViewSonic Corporation 20VG500b-1 Confidential – Do Not CopyNo Designation ViewSonic P/NIdentification NoQty Remark1F/C C-FP-0301-0896 5733715800 12Bir

10. BLOCK DIAGRAMViewSonic Corporation 21VG500b-1 Confidential – Do Not CopyE9100111.1 Top LevelA327Wednesday, October 02, 2002TitleSize Document Numb

11. SCHEMATIC DIAGRAMViewSonic Corporation 22VG500b-1 Confidential – Do Not Copygreen0404410mA510mApowerE9100112.0 KeyboardA337Wednesday, October 02,

ViewSonic Corporation 23VG500b-1 Confidential – Do Not Copy1E9100123.0 Analog InputA347Wednesday, October 02, 2002TitleSize Document NumberRevDate:She

ViewSonic Corporation 24VG500b-1 Confidential – Do Not CopyRM-A0RM-A5RM-14OSC-SELOCM-STARTSCLPOLH-PORT-ENH-PROTORM-A12RM-A11RM-A10RM-15SELMENUMUTEPOWE

ViewSonic Corporation 25VG500b-1 Confidential – Do Not CopyVDDD=3.3VVCOM=3.45VVDDG=18VVDDA=9.2VVEEG= -6VE9100115.0 Panel InterfaceA467Wednesday, Octob

ViewSonic Corporation 26VG500b-1 Confidential – Do Not CopyVDDA 9.2V/200mAVEEG -6V/20mAVDDG 18V/20mAVCOM 3.45V/200mAVDDD 3.3V/300mA1. Q602 and Q605

TABLE OF CONTENTS 1. Precautions and notices ...12. Service Tool and Equipment Required

ViewSonic Corporation 27VG500b-1 Confidential – Do Not CopyHI OFFLO ONTo Inverter.Lo Lightest0404HI Half of lightestE91001 A7.0 POWERA312Thursday, May

ViewSonic Corporation 28VG500b-1 Confidential – Do Not Copy0V minGND_S1Low offHi(5V)OnR+GND_S1 GND_S1U701GND_S1GND_S1L-2.5VmaxGND_S1L+GND_S1GND_S1R-GN

ViewSonic Corporation 29VG500b-1 Confidential – Do Not CopyAMBERGREENPOWERSELECTDOWN UPmenusp+sp-muteR_GNDL_GNDR CHL CHJST ZHR-2 (HOUSING)R01VIEWSON

ViewSonic Corporation 30VG500b-1 Confidential – Do Not CopyTIV-092B InverterPWB-0420TPTPTPTP

12.PCB LAYOUTViewSonic Corporation 31VG500b-1 Confidential – Do Not Copy

ViewSonic Corporation 32VG500b-1 Confidential – Do Not Copy

ViewSonic Corporation 33VG500b-1 Confidential – Do Not Copy

ViewSonic Corporation 34VG500b-1 Confidential – Do Not Copy

ViewSonic Corporation 35VG500b-1 Confidential – Do Not Copy

1. PRECAUTION AND NOTICES SAFETY PRECAUTIONS This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However

SERVICE TOOLS & EQUIPMENT REQUIRED 1. SIGNAL GENERATOR: Chroma 2237 or equivalent 2. MULTIMETER Fluke 45 or equivalent 3. SCREW DRIVER

SPECIFICATIONS 3.1 PRODUCT SPECIFICATIONS LCD Panel 15.0” TFT Power Management ENERGY Star compliant VESA DPMS compatible <2W Displayable Resolut

3.2. SUPPORTING MODES Primary Preset: VESA 1024 x 768 @ 60Hz Factory Preset Modes: 1. VGA 640x350 @ 70Hz, 25.176MHz 2. VESA 640x480 @ 60Hz, 25.175MHz

15 VGA_HSYNC HSYNC TTL positive or negative 3.4 Main DC+12V Input (J800 on I/F Board) Pin No. Symbol Function 1 GND Ground 2 DC+12V Main DC+12V

XGA Interface Board (LIF-007) JP2 (T-S12BZR): Connect with Control board Pin No. Symbol Function 1 Mute OSD, Audio Mute Function Button 2 SP- Ad