ViewSonic ve510b-3 User manual

(VE510s-3_VE510b-3_SM Rev. 1a Jan. 2006)
ViewSonic®381 Brea Canyon Road, Walnut, California 91789 USA -[phone]
ViewSonic VE510s-3
Model No. VS10040-3W
15” Color TFT LCD Display
Service Manual
VE510b-3

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Copyright
Copyright © 2005 by ViewSonic Corporation.All rights reserved.No part of this publication may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in
any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without
the prior written permission of ViewSonic Corporation.
Disclaimer
ViewSonic makes no representations or warranties, either expressed or implied, with respect to the contents
hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose. Further,
ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents
hereof without obligation of ViewSonic to notify any person of such revision or changes.
Trademarks
Optiquest is aregistered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.
Revision History
Revision
SM Editing Date
ECR Number
Description of Changes Editor
1a 01/16/2006 InitialreleaseJamie Chang

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TABLE OF CONTENTS
1. Precautions and Safety Notices 1
2. Specification 4
3. Front Panel Function Control Description
4. Circuit Description 18
5. Adjustment Procedure 29
6. Troubleshooting Flow Chart 58
7. Block Diagram 60
8. Recommended Spare Parts List 68
9. Exploded Diagram and Exploded Parts List 74
10. Schematic Diagrams 76
11. PCB Layout Diagrams 81
16

1. Precaution & Safety Notice
1. Caution :
No modification of any circuit should be attempted . Service work should only be performed after you are thoroughly
familiar with all of the following safety checks and servicing guide line
2. Safety Check :
Care should be taken while servicing this LCD display. Because of the high voltage used in the inverter circuit. These
voltage are exposed in such areas as the associated transformer circuits .
3. POWER SUPPLY REQUIREMENTS
The external power converter for this display utilizes AC and DC cords , AC cord is detachable , but DC cord is
permanently attached . Any attempt to replace another adapter could result in serious problem on the display .
4. LEAKAGE CURRENT HOT CHECK
4-1 Plug the AC cord directly into the AC outlet. Do not use an isolation transformer during this check.
4-2 Connect a 1500 ohm , 10 watt resistor , paralleled by a 0.15uF capacitor between each metallic part and a good earth
ground
4-3 Use an AC voltmeter with 1000 ohm / volt or more sensitivity and measure the AC voltage across the combination
1500 ohm resistor and 0.15uF capacitor.
4-4 Move the resistor connection to each exposed metallic part and measure the voltage.
4-5 Reverse the polarity of the AC plug in the AC outlet and repeat the above measurement.
4-6 Voltage measured must not exceed 1.5 volt RMS, from any exposed metallic part to the ground. A leakage current
tester may be used in the above hot check, in which case any circuit measured must not exceed 1.0 milliamp. In
the case of a measurement exceeding the 1.0 milliamp value, a rework is required to eliminate the chance of a shock
hazard .
To Metal Parts
V
AC VOLTMETER
1500 10W
0.15u
.
Earth Ground
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Handling and Placing Method
Correct methods : Incorrect Methods :
Only touch the metal-frame of the panel or the front
cover of the monitor .
Do not touch the surface of the polarizer .
Surface of the panel is pressed by fingers & this may
cause “MURA “
Take out the monitor with cushion Take out the monitor by grasping the LCD panel.
That may cause “MURA“.
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Correct methods : Incorrect Methods :
Place the monitor on a clean & soft foam pad . Place the monitor on foreign objects .
That could scratch the surface of panel
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Test Resolution & Fre
q
uenc
y
1024X768
@
60Hz
Test Ima
g
e Size Full Size
Factor
y
Default:
Contrast = 70%, Bri
g
htness = 100%
In
p
ut Connector
(
refer the a
pp
endix A
)
D-Sub-1 = DB-15
(
Analo
g)
Default In
p
ut Connector Defaults to the first detected in
p
ut
Video Cable Strain Relief Equal to twice the weight of the monitor for
five minutes
Video Cable Connector DB-15 Pin out Com
p
liant DDC/2B
Video RGB
(
Analo
g)
Se
p
arate S
y
nc
Video Im
p
edance 75 Ohms
(
Analo
g)
, 100 Ohms
(
Di
g
ital
)
Maximum PC Video Si
g
nal 950 mV with no dama
g
e to monitor
Maximum Mac Video Si
g
nal 1250 mV with no dama
g
e to monitor
S
y
nc Si
g
nals TTL
DDC/2B Com
p
liant with Revision 1.0
S
y
nc Com
p
atibilit
y
Se
p
arate S
y
nc
Video Compatibility
Shall be compatible with all PC type
computers, Macintosh computers, and
after market video cards
Resolution Compatibility
640 x 350, 640 x 400, 640 x 480, 720 x
400, 800 x 600, 832 x 624, 1024 x 768
Exclusions Not com
p
atible with interlaced video
2-1. GENERAL SPECIFICATION
Contrast and Brightness Controls
Video Signals
2-2. VIDEO INTERFACE
2. Specification
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2-3. POWER SUPPLY
Internal Power Supply LI SHIN SLS0326D12357
In
p
ut Volta
g
e Ran
g
e 90 to 264 VAC
In
p
ut Fre
q
uenc
y
Ran
g
e 47.5 to 63 Hertz
Short Circuit Protection Out
p
ut can be shorted without dama
g
e
Over Current Protection 5.0 A t
yp
ical at 12.0 VDC
Leaka
g
e Current 3.5mA
(
Max
)
at 254VAC / 60Hz
Efficienc
y
80 % t
yp
ical at 115VAC Full Load
Fuse Internal and not user re
p
laceable
Power Dissi
p
ation 35 Watts
(
t
yp)
Max In
p
ut AC Current 1.5 Arms
@
90VAC, 0.75 Arms
@
180VAC
Inrush Current (Cold Start) 50 A (max) @ 115VAC
90 A (max) @ 230VAC
Power Supply Cold Start
Shall start and function properly when
under full load, with all combinations of
input voltage, input frequency, and
operating temperature.
Power Supply Transient Immunity
Shall be able to withstand an ANSI/IEEE
C62.41-1980 6000V 200 ampere ring wave
transient test with no damage.
Power Supply Line Surge Immunity
Shall be able to withstand 1.5 times
nominal line voltage for one cycle with no
damage.
Power Supply Missing Cycle Immunity
Shall be able to function properly, without
reset or visible screen artifacts, when ½
cycle of AC power is randomly missing at
nominal input.
Power Supply Acoustics
The power supply shall not produce
audible noise that would be detectable by
the user. Audible shall defined to be in
compliance with ISO 7779 (DIN
EN27779:1991) Noise measurements of
machines acoustics. Power Switch noise
shall not be considered.
Power Savin
g
O
p
eration
(
Method
)
VESA DPMS Si
g
nalin
g
On Mode < 30 W
(
T
yp)
/ 35 W
(
max
)
Active Off < 1 W
Recover
y
Time On Mode = N/A, Active Off < 3 sec
Power Consumption
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2-4. ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency
Timing Table
Item Analog Digital Remark
1 640 x 350 @ 70 Hz, 31.5 KHz Yes No It might be not full screen.
And the position should
be in the center of
2 640 x 400 @ 60 Hz, 31.5 KHz Yes No
3 640 x 400 @ 70 Hz, 31.5 KHz Yes No
4 640 x 480 @ 50 Hz, 24.7 KHz Yes No
5 640 x 480 @ 60 Hz, 31.5 KHz Yes No
6 640 x 480 @ 67 Hz, 35 KHz Yes No
7 640 x 480 @ 72 Hz, 37.9 KHz Yes No
8 640 x 480 @ 75 Hz, 37.5 KHz Yes No
9 640 x 480 @ 85 Hz, 43.27 KHz Yes No
10 720 x 400 @ 70 Hz, 31.5 KHz Yes No
11 800 x 600 @ 56 Hz, 35.1 KHz Yes No
12 800 x 600 @ 60 Hz, 37.9 KHz Yes No
13 800 x 600 @ 75 Hz, 46.9 KHz Yes No
14 800 x 600 @ 72 Hz, 48.1 KHz Yes No
15 800 x 600 @ 85 Hz, 53.7 KHz Yes No
16 832 x 624 @ 75 Hz, 49.7 KHz Yes No
17 1024 x 768 @ 60 Hz, 48.4 KHz Yes No
18 1024 x 768 @ 70 Hz, 56.5 KHz Yes No
19 1024 x 768 @ 72 Hz, 58.1 KHz Yes No
20 1024 x 768 @ 75 Hz, 60 KHz Yes No
21 1024 x 768 @ 85 Hz, 68.67 KHz No No
*1. Tolerance ≥±2KHz.
*2. Any timing not in the list, it should display as normal or show on “OUT OF RANGE” OSD message without blanking.
Primary Presets
1024X768 @ 60Hz
User Presets
Number of User Presets (recognized timings) Available: 10 presets total in FIFO configurati
o
Timing
Horizontal Frequency
Vertical Refresh Rate
Maximum Pixel Clock
Sync Polarity
24 – 62 kHz
50 – 85 Hz
80 MHz
Independent of sync polarity.
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Changing Modes
●Maximum Mode Change Blank Time for image stability : 5 seconds (Max), excluding
"Auto Adjust" time
●Under DOS mode (640 x 350, 720 x 400 & 640 x 400), it should recall factory setting
execute "Auto Adjust" by "0-Touch™"
●The monitor needs to do “Auto Adjust” the first time a new mode is detected
(see section “0-Touch™ Function Actions”)
●While running Change Mode, Auto Adjust or Memory Recall, the image shall blank
Front Panel Hardware Controls
[PW] : Power
[ 2 ] : Button 2
[Up] : Up arrow
b
[Dn] : Down arrow
[ 1 ] : Button 1
Short Cuts Function from the button(s)
Function descriptions
To immediately activate Contrast menu. It should be change to
Brightness OSD by push button [2]
Recall both of Contrast and Brightness to default
Reaction Time
2-5. FRONT PANEL CONTROLS AND INDICATORS
[ 1 ] + [Up] OSD Lock
Remark : All the short cuts function are only available while OSD off
[ 1 ] + [ 2 ]
Factory Mode
The Main Menu OSD include most of control functions.
Please refer to APPENDIX B (Main Menu OSD Table) for the detail.
[ 1 ] + [PW]
Main Menu Controls
[ 1 ] + [Dn]
Toggle 720x400 and 640x400 mode when input 720x400 or
Auto White Balance. (Not shown on user’s guide)
Power Lock
Front Panel Tactile Switch Controls (Head)
Main Menu[ 1 ]
Note 1: Power Button, Button 1 and Button 2 must be
one-shot logic operation. (i.e. there should be no
cycling)
OSD must fully appear within 0.5s after
Power Control, soft Power Switch.
Green – ON
Power Switch (Front Head)
Power LED (Front Head)
Orange – Active Off
Dark = Soft Power Switch OFF
[ 2 ]
[Up] or [Dn]
[Up] + [Dn]
Auto Image Adjust
[ 1 ] + [Up] + [Dn]
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