Ctx S700, S730 SERVICE MANUAL
SERVICE MANUAL
S700/730
The Monitor Specialists
EDITION 1
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Service Manual
S700/730
TABLE OF CONTENTS
CONTENTS PAGE
Sections
1. Scope 3
2. Input requirements 4
3. Electrical Characteristics 5
4. Trouble Shooting 10~11
5. System Block Diagram 12
6. Inverter Board I/O Connection 13
7. IC Pin Configuration 14~16
8. Pin Assignment 17~23
9. Parts List 24
Appendix
1. Main Board Circuit Diagram
2. Assembly Explosion Drawing
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Service Manual
S700/730
Copyright © 2002 by Chuntex Electronic Co., Ltd.
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.
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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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1. SCOPE
This specification defines the design and performance requirements for the 17”
SXGA TFT LCD display monitor.“S700/730 “
There are 2 series of “ S700/730” in each own’s project code.
The common features of the 2 series of “S700/730” are listed in the following table :
Feature Description
1 Universal input AC/DC power supply inside the monitor
2 Analog RGB interface (VGA ) 30~80KHz, 59~75Hz, 135MHz
3 17” SXGA 1280*1024, TFT LCD panel
4
Function keys * 5 : Power On/Off, ESC, △ (up), ▽ (down), (enter)
5
Direct Acess function keys : △ for
6 Green/Amber LED indicator for power on/power saving
7 Plug & play support with DDC2B protocol installed.
8 Power saving mode compliant with Energy Star
9 OSD (on screen display) MENU operation
9.1 Brightness adjustment
9.2 Contrast adjustment
9.3 Auto tune function (VGA)
9.4 Color selection
9.5 Image adjustment
9.6 Position adjustment
9.7 Language selection
9.8 Reset function
contrast function, ▽ for brightness function
The differential features of the 2 models of S700 are listed in the following table
Model
Feature
Project
S700
LJE17W24GA
Service Manual
( Black)
LJE17B24GA
S700/730
S700
TCO 99 95
Cosmetic Color White (CTX87310) Black (CTX91471)
The differential features of the 2 models of s730 are listed in the following table
Model
Project
Feature ISO13406-2 Pixel Faults Class
2. INPUT REQUIREMENTS
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S730
LIE17G24GA LIE17G23GA
Ⅲ
S730
ISO13406-2
0 Pixel faults
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Service Manual
S700/730
2.1 Input Power
2.1.1. Power Source
2.1.2. Power Consumption
2.1.3. AC Line Drop Out
2.1.4. AC Wave Distortion
2.1.5. In-rush Current
2.1.6. Power Cord
2.2 Display Input
2.2.1. RGB Video
2.2.2 Sync Signal
2.2.3 Analog Input Connection
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100 ~ 240 Vac, + -10%, 50/60 Hz
Normal operating mode : ≦ 35W
Power saving mode : ≦ 3W
Power switch off : ≦ 2W
Picture must not disappear while AC 100 V input drop out
(10ms, 100%)
10% max. permitted
50 A max at 240 Vac cold start
Detachable, 3P with ground type.
Analogue, 0.0 to 0.7 V peak to peak
Separate RGB
Input impedance 75 Ohm
Positive polarity
1.Separate horizontal & vertical sync (3.3V & 5V)
Low level 0.8 V maximum
High level 2.0 V minimum
Positive or negative polarity
a. Captive cable(length1.5M) in LCD monitor end, Mini
D-sub 15 pin male in another end.
b.Cable oin assignment
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Service Manual
S700/730
Pin 1 Red
Pin 2 Green
Pin 3 Blue
Pin 4 No Connection
Pin 5 Ground
Pin 6 R Return
Pin 7 G Return
Pin 8 B Return
3. ELECTRICAL CHARACTERISTICS
3.1 LCD Panel
3.1.1. Type
3.1.2. Pixel structure
3.1.3. Gray scale
3.1.4. Surface treatment 3H hard coating ,anti-static
3.1.5. Backlight
3.1.6 Pixel Faults
Pixel Faults type
17” diagonal, SXGA resolution, color TFT-LCD
R/G/B sub-pixels in vertical stripes
1280 x 1024 array matrix
A-Si TFT active matrix
16 million Colors.
Integral CCFT ,
Type to support field replacement.
Life time 30000 hours @ 25C, 50% of initial value.
Model
Project
S700
LJE17W24GA
Pin 9 DDC +5V
Pin 10 Ground
Pin 11 Ground
Pin 12 SDA
Pin 13 H. Sync &
Composite sync
Pin 14 V. Sync
Pin 15 SCL
S700
(Black)
LJE17B24GA
Type1 Bright Pixels (Note 1)
Type2 Dark Pixels (Note 2)
Type3 Fault Pixels / Sub-Pixels(Note 3)
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≦ 5 ≦ 5
≦ 5 ≦ 5
≦ 3 ≦ 3
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Type4 Cluster of type1 or type 2 faults(Note 4)
Type5 Cluster of type3 faults (Note4)
Type6 Total Pixel Faults
Note 1 : Bright pixels in full black pattern.
Note 2 : Dark pixels in full white pattern
Note 3 : fault Pixel / Sub-Pixel : The pixel or sub-pixel is abnormal but not bright/dark pixel.
Note 4 : Fault Cluster : Two or more Pixels/Sub-pixels with faults within 5 * 5 block of pixels.
Model
Pixel Faults type
Type1 Bright Pixels (Note 2) 0
Type2 Dark Pixels (Note 3) 0
Type3 Fault Pixels / Sub-Pixels(Note 4) 0
Type4 Cluster of type1 or type 2 faults(Note 5) 0
Type5 Cluster of type3 faults (Note5) 0
Type6 Total Pixel Faults 0
Note 1 :LIE17G23GA Meet ISO 13406-2 pixel fault class I requirement (0 Pixel Faults)
Note 2 : Bright pixels in full black pattern.
Note 3 : Dark pixels in full white pattern
Note 4 : fault Pixel / Sub-Pixel : The pixel or sub-pixel is abnormal but not bright/dark pixel.
Note 5 : Fault Cluster : Two or more Pixels/Sub-pixels with faults in 5 * 5 block of pixels.
≦ 2 ≦ 2
≦ 3 ≦ 3
≦ 8 ≦ 8
S730
ISO13406-2
0 pixel fault
LIE17G23GA
(Note 1)
S730
LIE17G24GA
≦ 5
≦ 5
≦ 3
≦ 2
≦ 3
≦ 8
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3.2 Modes and Timing Compability
The monitor shall support all the modes listed in Table 1.
Display Format IBM VGA VESA VESA VESA VESA VESA
Horizontal Dots 720 640 640 640 800 800 800
Vertical lines 400 480 480 480 600 600 600
Horizontal Frequency 31.469 37.861 37.5 37.879 48.077 46.875
Vertical Frequency 70 59.94 72.809 75 60.317 72.188 75.000
Pixel Rate ( MHz ) 28.322 25.175 31.5 31.5 40 50 49.5
H. Sync. Polarit
V. Sync. Polarit
O ms ( Period ) 16.683 13.735 13.333 16.579 13.853 13.333
P ms ( Pulse Width ) 0.064 0.079 0.080 0.106 0.125 0.064
Q ms ( Back Porch ) 1.048 0.739 0.427 0.607 0.478 0.448
R ms ( Active Area ) 12.711 15.253 12.678 12.800 15.840 12.480 12.8
S ms ( Front Porch ) 0.318 0.237 0.027 0.026 0.770 0.021
Display Format VESA VESAVESA VES
Horizontal Dots 1024 1024 1024 1152 1280 1280
Vertical lines 768 768 768 864 1024 1024
Horizontal Frequency 48.363 56.746 60.023 67.5 63.981 79.976
Vertical Frequency 60.004 70.069 75.029 75 60.013 75.025
Pixel Rate ( MHz ) 65.0 75 78.75 108 108 135
H. Sync. Polarit
V. Sync. Polarit
O ms ( Period ) 16.666 14.272 13.238 13.333 16.663 13.329
P ms ( Pulse Width ) 0.124 0.106 0.050 0.044 0.047 0.038
Q ms ( Back Porch ) 0.6 0.513 0.466 0.474 0.594 0.475
R ms ( Active Area ) 15.88 13.599 12.795 12.8 16.006 12.804
S ms ( Front Porch ) 0.062 0.054 0.017 0.015 0.016 0.012
20.667 17.707 16.660 14.815 15.631 12.504
2.092 1.813 1.219 1.185 1.180 1.067
2.462 1.920 2.235 2.370 2.065 1.837
15.754 13.653 13.003 10.667 11.797 9.481
0.369 0.321 0.203 0.593 0.590 0.119
Table 1. Supported Timing
- - - - + + +
31.778 26.413 26.667 26.4 20.8 21.333
3.813 1.270 2.032 3.2 2.4 1.616
1.907 4.063 3.810 2.2 1.28 3.232
25.422 20.317 20.317 20.0 16.0 16.162
0.636 0.763 0.508 1.00 1.12 0.323
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Service Manual
VESA VESA
S700/730
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Service Manual
S700/730
VGA Support Mode
1280 * 1024 @ 60Hz,70Hz
1280 * 1024 @ 72Hz,75Hz
1280 * 960 @ 60Hz,70Hz,72Hz,75Hz
1208 * 720 @ 60Hz
1152 * 864 @ 60Hz, 70Hz,72Hz
1024 * 768 @ 72Hz
800 * 600 @ 70Hz
640 * 480 @ 70Hz
640 * 350 @ 70Hz
Timing Chart
Figure. 1 Timing Chart
Video
H Sync.
B C D E
A
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