ViewSonic VLCDS23722-1W User Manual

Service ManualViewSonic VE500-1Model No. VLCDS23722-1W (VE500-1_SM_526 - Rev. 1a – August 2002)15” Color TFT LCD Display ViewSonic 381 Brea Canyon Ro

Pin No. Symbol Function20 GND21 RA2 RED Data Signal of Odd Pixels22 RA3 RED Data Signal of Odd Pixels23 RA4 RED Data Signal of Odd Pixels24 RA5 RED Da

Inverter(RUNTP5463T8----) CN1: Inverter Input Terminal 1 Vin Supply Voltage for Inverter unit (DC +12)2 GND3 DimmingDimming range(0.4~4v)4 ON/OFF ON:5

6.BLOCK DIAGRAM J4 (DB15)COMPUTERGRAPHICSDDC (U3) EEPROM24C21U14SD1010AMPUU5MTV230VU16U10PLCN3INTERFACE BOARD ( DPWBN5396T8---- ) JP6TOINVERTERJ3SWITC

cable pin definition Switch board cable(QCNWS0906T8008-):28AWG, Shielding cable connection relationship PHR-11 PHR-8Pin No. Pin No.122233455566Inverte

7.TROUBLE SHOOTING FLOW CHARTYESDoes picture display?OSD no response Picture dim The brightness is different between upper and lower side of panel. P

CHKU5 pin 33~36 (PUSH KEY SWITCH) DPWBN5396T8---BDebug Procedure J3 , +12V INPUTDoes the screen Display?Solution with No display (2)NODisplayok ? YESL

NOYESYESYESCHK CKT Sheet 4 (Power)STARTNo screen handle(2)Back-lightok ? 5V or 3.3Vok ? NOYESNOU14 pin 10,21,22,23ok ? CHK J1NOCHKLP2 ~ LP13 ok ? CHK

J3,12VINPUTCHK FUSE F1 CHKU11 pin 2 +5VCHKU12 pin 2 3.3VCHKU13 pin 2 3.3VCHK1. L7 2. L8 3. Q4 4. U5CHK1. Q5 2. PanelDPWBN5396T8---BPOWER FLOWViewSonic

8. VE500 SPARE PARTS LIST NO. VIEWSONIC P/N DESCRIPTION PART NO. LOCATION260045 E-C-0404-4885 CAPACITOR-C 39PF 50VDC M X7R VCICHN1HH330J-AC30,80,99,

8. VE500 SPARE PARTS LIST NO. VIEWSONIC P/N DESCRIPTION PART NO. LOCATION421706L20023 SPONGEPCUSS1263T8421707L20023 FOR LCD CABLE CORERCORA5054T8430

ViewSonic Corporation iiCopyrightCopyright ¤ 2002 by ViewSonic Corporation. All rights reserved. No part of this publication may be reproduced, tran

ViewSonic Corporation Confidential – Do Not CopyVE500-19.EXPLODED DIAGRAM1 7

9. VE500 MECHANICAL PARTS LISTNO. VIEWSONIC P/N DESCRIPTION REFERENCE NO. QTY1 C-FP-0301-0849 FRONT COVER GCABA2301D8F-A 12 LENS HDECP1929D8F- 13 PL

DPWBN5396T8---BL30 NCU3 24C16-->24C2190/12/13C53 NC90/12/13add dan202u 90/12/21SC9884_VIEWSONICBQPWB-5396T8---BCustom15Thursday, March 14, 2002Tit

DPWBN5396T8---BTHE NEW ADD CIRCUIT FORM AD9884 PIN124 TO U5 PIN41 AD9884 POWER DOWNR78 150-->390T 90/12/13ADD JP3,JP4 SELECT 5V OR 3.3V_MCU 90/12/

DPWBN5396T8---BPLL1BQPWB-5396T8---BB35Thursday, March 14, 2002TitleSize Document NumberRevDate: SheetofN301N3109884_HROM_SCLHS_INHS_SOGSOG_SELHS_OUT5V

5V 3.3VPOWER INDPWBN5396T8---BR74 NOT CONNECT 90/12/13POWER_VIEWSONICBQPWB-5396T8---BCustom45Thursday, March 14, 2002TitleSize Document NumberRevDate

DPWBN5396T8---BU15 NCC79 NC 90/12/13R92,93 NOT CONNECT 90/12/13SD1010A_VIEWSONICBQPWB-5396T8---BC55Thursday, March 14, 2002TitleSize Document Number

KEYPAD BOARDL26,27 64RFIL-5232T8300A CHANGE 3.3K AND1.5KBOARD ID:QPWB-5403T8 REV:DDPWBN5403T8----DQPWB-5403_VE500A11Tuesday, January 22, 2030TitleSize

ViewSonic Corporation Confidential – Do Not CopyVE500-111.PCB LAYOUT DIAGRAM2 5

TABLE OF CONTENTS 1.PRECAUTIONS AND NOTICES...12.SPECIFICATIONS ...

ViewSonic Corporation 11.PRECAUTIONS AND NOTICESPrior to using this manual, please ensure that you have carefully followed all the procedures outlined

ViewSonic Corporation 22.SPECIFICATIONSLCD panel type 15.0” TFT (15.0” Diagonal) Displayable resolution XGA 1024 x 768 maximum Pixel dimension0.297 m

ViewSonic Corporation 33.LOCATION OF CONTROLS1) MENU: Enter to the OSD adjustment menu. It also used for go back to previous menu for sub-menu, and t

ʳʳ1. As shown on Fig 1. Power off the monitor and unplug the DC cable. ʳʳ ʳ ʳ2. As shown on Fig. 2 and Fig. 3. Press [2] key then plug DC cable at the

5.INTERNAL CONNECTOR PIN DEFINITIONXGA I/F BOARD (DPWBN5396T8----) J2: Key Switch for OSD Adjustment, Power Switch and Brightness ControlInput Termina

CN3: Output Terminal for Connector board(DPWBN5349T8----) Connector P/N:Pin No. Symbol Function1 GND2 RB2 RED Data Signal of Even Pixels3 RB3 RED Data