Ctx S500 SERVICE MANUAL

Service Manual

Model: LJE15XE (S500)

LCD Monitor Specialists

CTX Service Manual

LJE15XE(S500)

TABLE OF CONTENTS

CONTENTS PAGE 1

Sections

1. Features 4

2. Specifications 5

3. On Screen Display 6

4. Factory Preset Timings 7

5. Signal Pin Assignment 8

6. Block Diagram 9

7. Pin Configuration 10~11

8. Inverter Board I/O Connections 12

9. Trouble Shooting Flowchart 13 ~14

10. Assignment (S500 Reference) 15~20

11. Parts List (S500 Reference) 21~25

12. Exploded View 26~27

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CTX Service Manual

LJE15XE(S500)

The CTX SERVICE MANUAL is published by Chuntex Electronic Co., Ltd

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.

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CTX Service Manual

LJE15XE(S500)

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.

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CTX Service Manual

LJE15XE(S500)

Features

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 Vac，200~240 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 specification，Including USA governmental requirements

for Energy Star，the NUTEK standard and the VESA DPMS standard which detected the

Hori/Vert。 Sync signal from host CPU。A 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。

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CTX Service Manual

LJE15XE(S500)

SPECIFICATIONS

Characteristic Description

LCD Panel 15”diagonal, XGA resolution, color TFT-LCD, R/G/B

sub-pixels in vertical stripes 1024 x 768 array matrix, 16 million colors

Maximum Viewing Angles

Signal Input Video : RGB analog, 0.7 Vp-p, 75 ohms

Connector 15 Pin Mini D-Sub

Maximum Resolution 1024x768

Video Bandwidth 100 MHz nominal

Power Voltage 100~120Vac @ 50 / 60 Hz (auto switch), 12Vdc 3.5A

Power Consumption 35 W maximum

Operating Conditions Temperature : 5℃ to 35℃

Up ﹕45º

Down﹕55º

Sync : H/V separate or composite sync, TTL

Horizontal : 31~60 kHz

Vertical : 58~75 Hz

200~240Vac @ 50 / 60 Hz (auto switch), 12Vdc 3.5A

Humidity : 20% to 80% (no condensation)

Altitude : To 10,000 feet

Storage Condition Temperature : -20℃ to 60℃

Humidity : 10% to 90% (no condensation)

Altitude : To 40,000 feet

Dimensions Physical : 383mm (W) x 375mm (H) x 169mm (D)

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CTX Service Manual

LJE15XE(S500)

On Screen Display (OSD)

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 Level 2 Level 3 Level 4

Contrast ( icon) Adjustment scale

Brightness ( icon) Adjustment scale

Auto Tune Adjusting

Color 9300

6500

User

Quality Size

Phase

Focus

Dithering

Text/Gfx

Position Image Pos.

OSD Pos.

Language English

Germany

French

Spanish

Italian

Recall Yes/No `

Red ( icon)

Green ( icon)

Blue ( icon)

Adjustment scale

Off

Available/No Effect

H. Pos.

V. Po s .

Center

H. Pos.

V. Po s .

Center

Adjustment scale

Adjusting

Adjustment scale

Adjusting

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CTX Service Manual

LJE15XE(S500)

FACTORY PRESET TIMINGS

This timing chart is already preset for the TFT LCD analog display monitors.

Timing

IBM VGA 640x350 + 31.47 KHz - 70.09 Hz

IBM VGA 720x400 - 31.47 KHz + 70.08 Hz

IBM VGA 640x480 - 31.47 KHz - 59.94 Hz

VESA 640x480 - 37.86 KHz - 72.81 Hz

VESA 640x480 - 37.50 KHz

VESA 800x600 + 37.88 KHz + 60.32 Hz

VESA 800x600 + 48.08 KHz + 72.19 Hz

VESA 800x600 + 46.88 KHz + 75.00 Hz

VESA 1024x768 - 48.36 KHz - 60.00 Hz

Horizontal

Polarity

Horizontal

Frequency

Vertical

Polarity

-

Vertical

Frequency

75.00 Hz

VESA 1024x768 - 56.48 KHz - 70.07 Hz

VESA 1024x768 + 60.02 KHz + 75.03 Hz

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CTX Service Manual

LJE15XE(S500)

PIN ASSIGNMENT

The TFT LCD analog display monitors use a 15 Pin Mini D-Sub connector as video input source.

Pin Description

1 Red

2 Green

3 Blue

4 No Connection

5 Ground

6 R-Return

7 G- Return

8 B- Return

9 No Connection

10 Ground

11 Ground

12 (SDA)

13 H-Sync (Composite Sync)

14 V-Sync

15 (SCL)

1

11

5

106

15

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