Service Manual Model: LJE15XE (S500) LCD Monitor Specialists CTX TABLE OF CONTENTS CONTENTS Sections 1. Features 2. Specifications 3. On Screen Display 4. Factory Preset Timings 5. Signal Pin Assignment 6. Block Diagram 7. Pin Configuration 8. Inverter Board I/O Connections 9. Trouble Shooting Flowchart 10. Assignment (S500 Reference) 11. Parts List (S500 Reference) 12. Exploded View Service Manual LJE15XE(S500) PAGE 1 4 5 6 7 8 9 10~11 12 13 ~14 15~20 21~25 26~27 1 CTX Copyright © 2001 by Chuntex Electronic Co., Ltd. Service Manual LJE15XE(S500) The CTX SERVICE MANUAL is published by Chuntex Electronic Co., Ltd All rights reserved. No part of this manual may be used, copied, reproduced, or transmitted in any form or by any means for any purpose without the express written permission of the publisher. The publisher has been trying its best to make this publication perfect, and in this manner takes no responsibility for the use of any of the materials or methods described in this manual, or for the products thereof. Neither will the publisher be responsible for any damages caused by misuse or misquotation. Information in this manual is subject to change by the publisher without any notice in advance. CTX is a registered trademark of Chuntex Electronic Co., Ltd. 2 CTX Service Manual LJE15XE(S500) COPYRIGHT © 2001. CHUNTEX ELECTRONIC CO., LTD. ALL RIGHTS RESERVED. CTX products are registered trademarks of CHUNTEX ELECTRONIC Co., Ltd. VESA, EDID, DPMS and DDC are registered trademarks of Video Electronics Standards ssociation (VESA). Energy Star is a registered trademark of the US Environmental Protection Agency (EPA). No part of this document may be copied, reproduced or transmitted by any means for any purpose without prior written permission from CHUNTEX ELECTRONIC CO., LTD. FCC INFORMATION This equipment has been tested and found to comply with the limits of a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that the interference will not occur in a particular installation. If this equipment does cause unacceptable interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures -- reorient or relocate the receiving antenna; increase the separation between equipment and receiver; or connect the into an outlet on a circuit different from that to which the receiver is connected. FCC WARNING To assure continued FCC compliance, the user must use a grounded power supply cord and the provided shielded video interface cable with bonded ferrite cores. Also, any unauthorized changes or modifications to Amtrak products will void the user's authority to operate this device. Thus CTX will not be held responsible for the product and its safety. CE CERTIFICATION This device complies with the requirements of the EMC (EN55022,EN55024) & L.V.D (EN 60950) with regard to "Electromagnetic compatibility." SAFETY CAUTION Use a power cable that is properly grounded. Always use the AC cords as follows : Detachable ,3 P With ground type. DC Power cable, Detachable from display unit and captive with AC/DC Adapter. 3 CTX Features Service Manual LJE15XE(S500) The S500 are world class TFT LCD analog display monitor that includes the following features. 1. Digital On Screen Display Controls User friendly buttons [Menu Select ( / ) Auto Power and hot key (Smoothing Auto-Contrast Auto-Sync)] allowing for picture perfect quality User can define display mode or reset to default settings Help menu contains Auto-Tune (Adjusting)Color (9300/6500/User)Quality (Size/Phase/Focus /Dithering)Position (Image H-Pos./V-Pos./Center) & Position (OSD H-Pos./V-Pos./Center)Language (English/Germany/French/Spanish/Italian) Recall (Yes/No) 2. Power Supply Support Ability to accept voltages from 100~120 Vac200~240 Vac,50/60 Hz (+6%,-10%) thus allowing a full range of input AC power supply 3. Power Saving System This monitor will meet the low power specificationIncluding USA governmental requirements for Energy Starthe NUTEK standard and the VESA DPMS standard which detected the Hori/Vert Sync signal from host CPUA dual color(green/amber) LED is located on the front bezel to indicate the power management states 4. Frequency Range Monitor can support video standards from VGA to XGA where Horizontal frequency ranges from31~60kHz and Vertical frequency ranges from 58~75 Hz 4 CTX SPECIFICATIONS Characteristic LCD Panel Service Manual LJE15XE(S500) Description 15"diagonal, XGA resolution, color TFT-LCD, R/G/B sub-pixels in vertical stripes 1024 x 768 array matrix, 16 million colors Up 45º Down55º Video : RGB analog, 0.7 Vp-p, 75 ohms Sync : H/V separate or composite sync, TTL Horizontal : 31~60 kHz Vertical : 58~75 Hz Maximum Viewing Angles Signal Input Connector Maximum Resolution Video Bandwidth Power Voltage 15 Pin Mini D-Sub 1024x768 100 MHz nominal 100~120Vac @ 50 / 60 Hz (auto switch), 12Vdc 3.5A 200~240Vac @ 50 / 60 Hz (auto switch), 12Vdc 3.5A Power Consumption Operating Conditions 35 W maximum Temperature : 5 to 35 Humidity : Altitude : 20% to 80% (no condensation) To 10,000 feet Storage Condition Temperature : -20 to 60 Humidity : Altitude : 10% to 90% (no condensation) To 40,000 feet Dimensions Physical : 383mm (W) x 375mm (H) x 169mm (D) 5 CTX On Screen Display (OSD) Service Manual LJE15XE(S500) OSD (On Screen Display) function is supported on each the TFT LCD analog display monitors and is controlled by four easy to use buttons ­ Menu, Select (), Select (), Auto, Power. Table Level 1 Contrast ( icon) Level 2 Adjustment scale Level 3 Level 4 Brightness ( icon) Adjustment scale Auto Tune Color Adjusting 9300 6500 User Red ( icon) Green ( icon) Blue ( icon) Quality Size Phase Focus Dithering Text/Gfx Position Image Pos. Adjustment scale Adjustment scale Adjustment scale Off Available/No Effect H. Pos. V. Pos. Center OSD Pos. H. Pos. V. Pos. Center Language English Germany French Spanish Italian Recall Yes/No ` Adjustment scale Adjustment scale Adjusting Adjustment scale Adjustment scale Adjusting Adjustment scale Adjustment scale Adjustment scale 6 CTX FACTORY PRESET TIMINGS Service Manual LJE15XE(S500) This timing chart is already preset for the TFT LCD analog display monitors. Timing IBM VGA 640x350 IBM VGA 720x400 Horizontal Polarity + - Horizontal Frequency 31.47 KHz 31.47 KHz Vertical Polarity + Vertical Frequency 70.09 Hz 70.08 Hz IBM VGA 640x480 VESA 640x480 VESA 640x480 - 31.47 KHz 37.86 KHz 37.50 KHz - 59.94 Hz 72.81 Hz 75.00 Hz VESA 800x600 VESA 800x600 VESA 800x600 VESA 1024x768 VESA 1024x768 + + + - 37.88 KHz 48.08 KHz 46.88 KHz 48.36 KHz 56.48 KHz + + + - 60.32 Hz 72.19 Hz 75.00 Hz 60.00 Hz 70.07 Hz VESA 1024x768 + 60.02 KHz + 75.03 Hz 7 CTX PIN ASSIGNMENT Service Manual LJE15XE(S500) The TFT LCD analog display monitors use a 15 Pin Mini D-Sub connector as video input source. Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Red Green Blue No Connection Ground R-Return G- Return B- Return No Connection Ground Ground (SDA) H-Sync (Composite Sync) V-Sync (SCL) Description 1 6 11 5 10 15 8 CTX Service Manual LJE15XE(S500) BLOCK DIAGRAM TFT-LCD Module MAIN BOARD BLOCK DIAGRAM 9 CTX POWER BLOCK DIAGRAM Service Manual LJE15XE(S500) Main Board IC Pin Configuration 10 CTX Pin Configuration Service Manual LJE15XE(S500) Pin Parameter: 11 CTX Inverter Board I/O Connections Service Manual LJE15XE(S500) 12 CTX TROUBLE SHOOTING VIDEO DOES NOT APPEAR Service Manual LJE15XE(S500) 13 CTX TROUBLE SHOOTING R. G .B is not displayed correctly Service Manual LJE15XE(S500) 14 CTX Service Manual LJE15XE(S500) TEST CONDITIONAC LINE IN110V/60Hz PATTENFULL WHITE S500 (FOR CMO) IC PIN 1 GND GND MAIN/BOARD U1 ( GMZAN2 ) 2 0.00 0.00 0.00 3 0.00 0.00 0.00 4 0.00 0.00 0.00 5 GND GND GND 6 0.00 0.00 0.00 7 0.00 0.00 0.00 8 GND GND GND 9 0.00 0.00 0.00 10 0.00 0.00 0.00 Unit: Volt MODE 640*480 31K/60Hz 800*600 48K/72Hz 1024*768 60K/75Hz GND IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz 1024*768 60K/75Hz IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz 1024*768 60K/75Hz IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz 1024*768 60K/75Hz IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz U1 ( GMZAN2 ) 11 2.50 2.50 2.50 12 3.29 3.29 3.29 13 0.00 0.00 0.00 14 0.00 0.00 0.00 15 0.00 0.00 0.00 16 0.00 0.00 0.00 17 0.00 0.00 0.00 18 GND GND GND 19 0.00 0.00 0.00 20 0.00 0.00 0.00 U1 ( GMZAN2 ) 21 2.50 2.50 2.50 22 0.00 0.00 0.00 23 2.62 2.60 2.77 24 2.62 2.60 2.77 25 2.62 2.60 2.77 26 1.60 1.60 1.60 27 0.80 0.80 0.80 28 0.95 0.95 0.95 29 2.62 2.60 2.77 30 GND GND GND U1 ( GMZAN2 ) 31 2.62 2.60 2.77 32 2.62 2.60 2.77 33 3.29 3.29 3.29 34 1.95 1.95 1.95 35 0.60 0.60 0.60 36 0.60 0.60 0.60 37 2.62 2.60 2.77 38 2.62 2.60 2.77 39 2.62 2.60 2.77 40 3.29 3.29 3.29 U1 ( GMZAN2 ) 41 GND GND 42 2.60 2.58 2.75 43 2.65 2.61 2.78 44 1.39 1.28 1.29 45 1.56 1.46 1.48 46 0.00 0.00 0.00 47 0.40 0.40 0.40 48 2.62 2.60 2.78 49 GND GND GND 50 2.63 2.59 2.78 1024*768 60K/75Hz GND 15 CTX Service Manual LJE15XE(S500) S500 (CMO ) IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz 1024*768 60K/75Hz IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz MAIN/BOARD U1 ( GMZAN2 ) 51 2.63 2.60 2.78 52 1.70 1.70 1.70 53 0.70 0.70 0.70 54 0.60 0.60 0.60 55 2.62 2.60 2.78 56 2.63 2.59 2.78 57 2.63 2.60 2.78 58 2.50 2.50 2.50 Unit: Volt 59 GND GND GND 60 3.29 3.29 3.29 U1 ( GMZAN2 ) 61 GND GND 62 1.75 1.75 1.75 63 0.60 0.60 0.60 64 0.60 0.60 0.60 65 3.29 3.29 3.29 66 2.62 2.60 2.78 67 2.63 2.59 2.78 68 2.63 2.59 2.78 69 2.59 2.57 2.75 70 0.00 0.00 0.00 1024*768 60K/75Hz GND IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz 1024*768 60K/75Hz IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz U1 ( GMZAN2 ) 71 0.60 0.60 0.60 72 GND GND GND 73 3.26 3.26 3.26 74 2.90 2.90 2.90 75 3.27 3.27 3.27 76 3.28 3.28 3.28 77 2.49 2.49 2.49 78 GND GND GND 79 2.49 2.49 2.49 80 GND GND GND U1 ( GMZAN2 ) 81 GND GND 82 GND GND GND 83 2.95 2.95 2.95 84 3.28 3.28 3.28 85 GND GND GND 86 0.00 0.00 0.00 87 0.49 0.47 0.50 88 3.28 3.28 3.28 89 GND GND GND 90 0.00 0.00 0.00 1024*768 60K/75Hz GND IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz 1024*768 60K/75Hz IC PIN MODE 640*480 31K/60Hz U1 ( GMZAN2 ) 91 0.49 0.47 0.50 92 3.28 3.28 3.28 93 GND GND GND 94 0.00 0.00 0.00 95 0.49 0.47 0.50 96 3.28 3.28 3.28 97 2.48 2.48 2.48 98 3.14 3.14 3.14 99 0.30 0.30 0.30 100 4.97 4.97 4.97 U4 ( GMZAN2 ) 101 1.00 102 0.05 103 2.72 104 0.52 105 0.10 106 0.29 107 0.29 108 3.29 109 3.29 110 3.29 16 CTX 800*600 48K/72Hz 1024*768 60K/75Hz S500 ( For CMO ) IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz 1024*768 60K/75Hz IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz 1024*768 60K/75Hz IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz 1.00 1.00 0.05 0.05 2.72 2.72 0.52 0.52 0.10 0.10 Service Manual LJE15XE(S500) 0.29 0.29 0.29 0.29 3.29 3.29 3.29 3.29 3.29 3.29 MAIN/BOARD U1 ( GMZAN2 ) 111 3.00 3.00 3.00 112 3.29 3.29 3.29 113 3.29 3.29 3.29 114 GND GND GND 115 0.00 0.00 0.00 116 0.00 0.00 0.00 117 0.00 0.00 0.00 118 0.20 0.20 0.20 Unit:Volt 119 0.20 0.20 0.20 120 0.20 0.20 0.20 U1 ( GMZAN2 ) 121 0.23 0.23 0.23 122 0.20 0.20 0.20 123 3.29 3.29 3.29 124 0.06 0.06 0.06 125 2.50 2.50 2.50 126 GND GND GND 127 GND GND GND 128 3.29 3.29 3.29 129 3.29 3.29 3.29 130 0.70 0.70 0.70 U1 ( GMZAN2 ) 131 GND GND 132 GND GND GND 133 GND GND GND 134 GND GND GND 135 0.75 0.75 0.75 136 3.29 3.29 3.29 137 3.29 3.29 3.29 138 GND GND GND 139 2.50 2.50 2.50 140 GND GND GND 1024*768 60K/75Hz GND IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz 1024*768 60K/75Hz IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz U1 ( GMZAN2 ) 141 2.70 2.70 2.70 142 2.40 2.40 2.40 143 3.29 3.29 3.29 144 GND GND GND 145 0.89 0.89 0.89 146 GND GND GND 147 GND GND GND 148 0.00 0.00 0.00 149 2.50 2.50 2.50 150 0.59 0.57 0.37 U1 ( GMZAN2 ) 151 GND GND 152 0.00 0.00 0.00 153 0.00 0.00 0.00 154 0.00 0.00 0.00 155 0.00 0.00 0.00 156 0.00 0.00 0.00 157 0.00 0.00 0.00 158 GND GND GND 159 0.00 0.00 0.00 160 0.00 0.00 0.00 1024*768 60K/75Hz GND 17 CTX S500 ( For CMO ) IC PIN MODE 640*480 31K 800*600 48K 1024*768 60K 1 GND GND GND 2 GND GND GND 3 GND GND GND MAIN/BOARD Service Manual LJE15XE(S500) Unit:Volt U3 (24LC16 ) 4 GND GND GND 5 5.00 5.00 5.00 6 5.00 5.00 5.00 7 GND GND GND 8 5.00 5.00 5.00 IC PIN MODE 640*480 31K/60Hz 800*600 48K/72Hz 1024*768 60K/75Hz 1 4.97 4.97 4.97 2 4.97 4.97 4.97 3 4.97 4.97 4.97 4 3.17 3.17 3.17 U4 ( MTV312M ) 5 0.00 0.00 0.00 6 0.00 0.00 0.00 7 0.01 0.01 0.01 8 4.97 4.97 4.97 9 1.30 1.30 1.30 10 GND GND GND 11 1.15 1.15 1.15 IC PIN MODE 640*480 31K/60Hz ...