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ViewSonic VA702-2
VA721-3
VA721b-3
Model No. VS10781
17” Color TFT LCD Display
(VA702-2_VA721-3_VA721b-3_SM Rev. 1b Sep. 2006)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA – (800) 888-8583
Service Manual
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Copyright
Copyright © 2006 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 a registered 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 03/06/2006 Initial Release Jamie Chang
VS-E060223
VA702-2_VA721-3_VA721b-3
1b 09/01/2006
Add panel source (MT170EN01 V7)
Jamie Chang
VS-E060293
Add panel source (MT170EN01 VA)
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TABLE OF CONTENTS
1. Precautions and Safety Notices 1
2. Specification 4
3. Front Panel Function Control Description 13
4. Circuit Description 17
5. Adjustment Procedure 27
6. Troubleshooting Flow Chart 33
7. Recommended Spare Parts List 40
8. Exploded Diagram and Exploded Parts List 46
9. Block Diagram 50
10. Schematic Diagrams 51
11. PCB Layout Diagrams 59
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1. Precautions and Safety Notices
SAFETY PRECAUTIONS
This monitor is manufactured and tested on a ground principle that a user’s safety comes first.
However, improper used or installation may cause damage to the monitor as well as to the user.
WARNINGS:
l This monitor should be operated only at the correct power sources indicated on the label on the
rear of the monitor. If you’re unsure of the power supply in you residence, consult your local
dealer or Power Company.
l Use only the special power adapter that comes with this monitor for power input.
l Do not try to repair the monitor by yourself, as it contains no user-serviceable parts. Only the
qualified technician can repair it.
l Do not remove the monitor cabinet. There are high-voltage parts inside that may cause electric
shock to human bodies.
l Stop using the monitor if the cabinet is damaged. Have it checked by a service technician.
l Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable
immediately and consult your closed dealer.
l Always unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth. Apply
non-ammonia based cleaner onto the cloth, not directly onto the glass screen.
l Do not place heavy objects on the monitor or power cord.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety visual inspections and the
protection afforded by them cannot necessarily be obtained by using replacement components
rated for higher voltage, wattage, etc. Before replacing any of these components read the parts list
in this manual carefully. The use of substitute replacement parts, which do not have the same
safety characteristics as specified in the parts list, may create shock, fire, or other hazards.
SERVICE NOTES
l When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.
l Keep wires away from high voltage, high temperature components and sharp edges.
l Keep wires in their original position so as to reduce interference.
l Adjustment of this product please refers to the user’ manual.
VA702-2_VA721-3_VA721b-3
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Handling and Placing Methods
VA702-2_VA721-3_VA721b-3
Correct Methods: Incorrect Methods:
Only touch the metal of the LCD panel or the front
cover of he monitor. Do not touch the surface of the
polarizer.
Surface of the LCD panel is pressed by fingers and
that may cause "Mura".
Take out the monitor with cushions.
Taking out the monitor by grasping the LCD panel.
That may cause "Mura".
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VA702-2_VA721-3_VA721b-3
Correct Methods: Incorrect Methods:
Place the monitor on a clean and soft foam pad.
Placing the monitor on foreign objects, That could
scratch the surface of the panel or cause "Mura".
The panel is placed facedown on the lap. That may
cause "Mura".
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2. Specification
1. INTPRODUCTION
VA702-2_VA721-3_VA721b-3
FEATURES VA702/b-2 / VA702/b-2U
Size
17 “
Luminance (Typ)
300 cd/㎡
Contrast Ratio (Typ) 500:1
Colors (6 bits + 2 bits FRC) 16.2 M
Response Time (Typ) 8 ms
Viewing Angle (H/V) 140 ° / 130 °
1st panel source
TFTLCD PANEL
Recommend resolution 1280x1024@60Hz
Size
17 “
Luminance (Typ)
300 cd/㎡
Contrast Ratio (Typ) 500:1
Colors (6 bits + 2 bits FRC) 16.2 M
Response Time (Typ) 8 ms
Viewing Angle (H/V) 150 ° / 135 °
2nd panel source
TFTLCD PANEL
Recommend resolution 1280x1024@60Hz
Size
17 “
Luminance (Typ)
280 cd/㎡
Contrast Ratio (Typ) 600:1
Colors (6 bits + 2 bits FRC) 16.2 M
Response Time (Typ) 8 ms
Viewing Angle (H/V) 150 ° / 135°
3rd panel source
TFTLCD PANEL
Recommend resolution 1280x1024@60Hz
Analog (75ohms, 0.7/1.0 Vp-p) Yes
Input Signal
Digital No
Separate Sync Yes
Composite Sync No
Sync Compatibility
Sync on Green No
PC Yes
Power Mac Yes
Compatibility
TV Box (NextVision 6) Yes
Power Voltage AC 100-240V, 50/60Hz Yes
On Mode(Max / Typ) 36 W/ 35 W
Power Consumption
Off Mode (Max)
≦1 W
Audio No
Tilt ( 20 ° - -5 °)
Yes
Swivel No
Pivot No
Ergonomics
Height Adjust No
OSD Control [ 1 ] [▼] [▲] [ 2 ] [ ] Yes
Physical (W x H x D) 378 x 374 x 196 mm
Dimension
Package (W x H x D) 440 x 511 x 132 mm
Physical (Net Weight) 4.5 kg
Weight
Package (Gross Weight) 6.2 kg
Temperature ( / )℉℃ 32℉-104℉ / 0℃-40℃
Operating Condition
Humidity (%) 10 % - 90 %
Temperature ( / )℉℃ -4℉-140℉ / -20℃-60℃
Storage Condition
Humidity (%) 5 % - 90 %
Regulation
UL, cUL, FCC-B, CB, CE, ENERGY, NOM, TUV/GS, TUV ERGO
(covers ISO13406-2 & MPRII), TCO’03, GOST-R+20 ORIGINAL
COPIES HYGIENIC, SASO, PCBC, VCCI, BSMI, CCC, (PSB), (CTICK), TUV-S, Green Mark, Energy Star, WEEE, RoHS
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2 GENERAL specification
Test Resolution & Frequency 1280x1024 @ 60Hz
Test Image Size Full Size
Contrast and Brightness Controls
Factory Default:
Contrast = 70%, Brightness = 100%
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VA702-2_VA721-3_VA721b-3
FEATURES VA721/b-3
Size
17 “
Luminance (Typ)
300 cd/㎡
Contrast Ratio (Typ) 500:1
Colors (6 bits + 2 bits FRC) 16.2 M
Response Time (Typ) 8 ms
Viewing Angle (H/V) 150 ° / 135 °
1st panel source
TFTLCD PANEL
Recommend resolution 1280x1024@60Hz
Size
17 “
Luminance (Typ)
280 cd/㎡
Contrast Ratio (Typ) 600:1
Colors (6 bits + 2 bits FRC) 16.2 M
Response Time (Typ) 8 ms
Viewing Angle (H/V) 150 ° / 135°
2nd panel source
TFTLCD PANEL
Recommend resolution 1280x1024@60Hz
Analog (75ohms, 0.7/1.0 Vp-p) Yes
Input Signal
Digital No
Separate Sync Yes
Composite Sync No
Sync Compatibility
Sync on Green No
PC Yes
Power Mac Yes
Compatibility
TV Box (NextVision 6) Yes
Power Voltage AC 100-240V, 50/60Hz Yes
On Mode(Max / Typ) 36 W/ 35 W
Power Consumption
Off Mode (Max)
≦1 W
Audio No
Tilt ( 20 ° - -5 °)
Yes
Swivel No
Pivot No
Ergonomics
Height Adjust No
OSD Control [ 1 ] [▼] [▲] [ 2 ] [ ] Yes
Physical (W x H x D) 378 x 374 x 196 mm
Dimension
Package (W x H x D) 440 x 511 x 132 mm
Physical (Net Weight) 4.5 kg
Weight
Package (Gross Weight) 6.2 kg
Temperature ( / )℉℃ 32℉-104℉ / 0℃-40℃
Operating Condition
Humidity (%) 10 % - 90 %
Temperature ( / )℉℃ -4℉-140℉ / -20℃-60℃
Storage Condition
Humidity (%) 5 % - 90 %
Regulation
UL, cUL, FCC-B, CB, CE, ENERGY, NOM, TUV/GS, TUV ERGO (covers
ISO13406-2 & MPRII), TCO’03, GOST-R+20 ORIGINAL COPIES HYGIENIC,
SASO, PCBC, VCCI, BSMI, CCC, (PSB), (C-TICK), TUV-S, Green Mark,
Energy Star, WEEE, RoHS
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3 VIDEO INTERFACE
Analog Input Connector DB-15 (Analog), refer the appendix A
Video Cable Strain Relief
Equal to twice the weight of the monitor for five
minutes
Video Cable Connector DB-15 Pin out Compliant DDC 1/2B
Video Signals Video RGB (Analog) - Separate
Video Impedance 75 Ohms (Analog)
Maximum PC Video Signal 950 mV with no damage to monitor
Maximum Mac Video Signal 1250 mV with no damage to monitor
Sync Signals LVDS
DDC 1/2B Compliant with Revision 1.3
Sync Compatibility Separate Sync
Video Compatibility
Shall be compatible with all PC type computers,
Macintosh computers, and after market video cards
Resolution Compatibility
640 x 350, 640 x 480, 720 x 400 (640 x 400*), 800 x
600, 832 x 624, 1024 x 768, 1152 x 870, 1280 x 720,
1280 x 1024
Exclusions Not compatible with interlaced video
4 POWER SUPPLY
VA702-2_VA721-3_VA721b-3
Internal Power Supply Part Number: ILIPI-004
Input Voltage Range 90 TO 264 VAC
Input Frequency Range 47.5 TO 63 HERTZ
Short Circuit Protection Output can be shorted without damage
Over Current Protection 2.4 A typical at 14.2 VDC
Leakage Current 3.5mA (Max) at 254VAC / 60Hz
Efficiency 80% typical at 115VAC Full Load
Fuse Internal and not user replaceable
Power Dissipation 36w (max) / 35 Watts (typ)
Max Input AC Current 0.8 Arms @ 90VAC, 0.4 Arms @265VAC
INRUSH CURRENT (COLD START) 30 A @ 120VAC, 50 A (max) @ 220VAC
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 2000V 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 be defined to be in compliance
with ISO 7779 (DIN EN27779:1991) Noise
measurements of machines acoustics.
Power Switch noise shall not be considered
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US Type Power Cable
Separate 3-prong NEMA 5-15P type plug.
Length = 1.8m. Connects to display.
Color = Black
European Type Power Cable
Schuko CEE7-7 type plug.
Length = 1.8m, Connects to display.
Color = Black
CCC Type Power Cable
Separate 3-prong type plug.
Length = 1.8m. Connects to display.
Color = Black
PSE Type Power Cable
Separate 2-prong NEMA 1-15P type plug.
Length = 1.8m. Connects to display.
Color = Black
Power Saving Operation(Method) VESA DPMS Signaling
Power Consumption
On Mode < 36 W (max)
Off Mode< 1W
Recovery Time On Mode = N/A, Active Off < 3 sec
5 ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency
Horizontal Frequency 30 – 82 kHz
Vertical Refresh Rate 50 – 85* Hz.
* When the resolution is set to 1280 x 1024, the vertical refresh
rate may be up to 75 Hz; for all other resolutions, the vertical
refresh rate may be up to 85Hz.
Maximum Pixel Clock 140 MHz
Sync Polarity Independent of sync polarity.
Timing Table
Item Timing Analog
1 640 x 350 @ 70Hz, 31.5kHz Yes
2 640 x 400 @ 60Hz, 31.5kHz Yes
3 640 x 400 @ 70Hz, 31.5kHz Yes
4 640 x 480 @ 50Hz, 24.7kHz Yes
5 640 x 480 @ 60Hz, 31.5kHz Yes
6 640 x 480 @ 67Hz, 35.0kHz Yes
7 640 x 480 @ 72Hz, 37.9kHz Yes
8 640 x 480 @ 75Hz, 37.5kHz Yes
9 640 x 480 @ 85Hz, 43.27kHz Yes
10 720 x 400 @ 70Hz, 31.5kHz Yes
11 800 x 600 @ 56Hz, 35.1kHz Yes
12 800 x 600 @ 60Hz, 37.9kHz Yes
13 800 x 600 @ 75Hz, 46.9kHz Yes
14 800 x 600 @ 72Hz, 48.1kHz Yes
15 800 x 600 @ 85Hz, 53.7kHz Yes
16 832 x 624 @ 75Hz, 49.7kHz Yes
17 1024 x 768 @ 60Hz, 48.4kHz Yes
18 1024 x 768 @ 70Hz, 56.5kHz Yes
19 1024 x 768 @ 72Hz, 58.1kHz Yes
VA702-2_VA721-3_VA721b-3
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20 1024 x 768 @ 75Hz, 60.0kHz Yes
21 1024 x 768 @ 85Hz, 68.67kHz Yes
22 1152 x 870 @ 75Hz, 68.7kHz Yes
23 1280 x 1024 @ 60Hz, 63.4kHz Yes
24 1280 x 1024 @ 75Hz, 79.97kHz Yes
25 1280x 720 @ 60Hz, 45kHz (HDTV) Yes
Primary Presets
1280x1024 @ 60Hz
User Presets
Number of User Presets (recognized timings) Available: 10 presets total in FIFO configuration
Changing Modes
● Maximum Mode Change Blank Time for image stability: 3 seconds (Max), excluding “Auto
Image Adjust” time.
● Under DOS mode (640 x 350, 720 x 400 & 640 x 400), it should recall factory setting when
execute “Auto Image Adjust”.
The monitor needs to do “Auto Image Adjust” the first time when a new mode is detected. (See
section “0-Touch™ Function Actions”)
VA702-2_VA721-3_VA721b-3
Panel Characteristics:
1
st
Source Panel
Model number Innolux MT170EN01 V2
Type TN type with LVDS interface
Active Size 337.9 (H) x 270.3 (V)
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.264 mm
GLASS TREATMENT Anti Glare (Hard coating 3H)
# OF BACKLIGHTS 4 CCFL edge-light (2 top / 2 bottom)
BACKLIGHT LIFE 40,000 Hours (Min) / 50,000 (Typ)
Luminance (Center) –
Condition:
CT = 6500K, Contrast = Max,
Brightness = Max
300 cd/m2 (Typ after 30 minute warm up)
250 cd/m2 (Min after 30 minute warm up)
Brightness Uniformity (13 points)
0.8 (Typ), 0.75(Min)
δ = Min Luminance of 13 points/Max
Luminance of 13 points
Contrast Ratio 500:1 (Typ), 400:1 (min)
Color Depth 16.2 million colors (6 bits + 2 bits FRC)
Viewing Angle (Horizontal) @ CR>=10
Typical: 140º
Minimum: 130º
@ CR>= 5
Typical: 160º
Minimum: 140º
VIEWING ANGLE (VERTICAL)
@ CR>=10
Typical: 130º
Minimum: 110º
@ CR>= 5
Typical: 160º
Minimum: 140º
Response Time
10%-90% @ Ta=25°C
8 ms (Tr= 2 ms, Tf = 6 ms) (typ)
18 ms (Tr= 7 ms, Tf = 11 ms)(max)
Panel Defects Please see Panel Quality Specifications.
TFT LCD PANEL (for VA702-2)
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VA702-2_VA721-3_VA721b-3
2nd Source Panel
Model number Innolux MT170EN01 V4
Type TN type with LVDS interface
Active Size 337.9 (H) x 270.3 (V)
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.264 mm
GLASS TREATMENT Anti Glare (Hard coating 3H)
# OF BACKLIGHTS 4 CCFL edge-light (2 top / 2 bottom)
BACKLIGHT LIFE 40,000 Hours (Min) / 50,000 (Typ)
Luminance (Center) –
Condition:
CT = 6500K, Contrast = Max,
Brightness = Max
300 cd/m2 (Typ after 30 minute warm up)
250 cd/m2 (Min after 30 minute warm up)
Brightness Uniformity (13 points) 0.8 (Typ), 0.75(Min)
δ = Min Luminance of 13 points/Max
Luminance of 13 points
Contrast Ratio 500:1 (Typ), 400:1 (min)
Color Depth 16.2 million colors (6 bits + 2 bits FRC)
Viewing Angle (Horizontal) @ CR>=10
Typical: 150º
Minimum: 130º
@ CR>= 5
Typical: 170º
Minimum: 150º
VIEWING ANGLE (VERTICAL)
@ CR>=10
Typical: 135º
Minimum: 115º
@ CR>= 5
Typical: 155º
Minimum: 135º
Response Time
10%-90% @ Ta=25°C
8 ms (Tr= 2 ms, Tf = 6 ms) (typ)
18 ms (Tr= 7 ms, Tf = 11 ms)(max)
Panel Defects Please see Panel Quality Specifications.
3
rd
Source Panel
Model number Innolux MT170EN01 V7
Type TN type with LVDS interface
Active Size 337.9 (H) x 270.3 (V)
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.264 mm
GLASS TREATMENT Anti Glare (Hard coating 3H)
# OF BACKLIGHTS 4 CCFL edge-light (2 top / 2 bottom)
BACKLIGHT LIFE 40,000 Hours (Min) / 50,000 (Typ)
Luminance (Center) –
Condition:
CT = 6500K, Contrast = Max,
Brightness = Max
280 cd/m2 (Typ after 30 minute warm up)
250 cd/m2 (Min after 30 minute warm up)
Brightness Uniformity (13 points) 0.8 (Typ), 0.75(Min)
δ = Min Luminance of 13 points/Max
Luminance of 13 points
Contrast Ratio 600:1 (Typ), 500:1 (min)
Color Depth 16.2 million colors (6 bits + 2 bits FRC)
Viewing Angle (Horizontal) @ CR>=10
Typical: 150º
Minimum: 130º
@ CR>= 5
Typical: 170º
Minimum: 150º
VIEWING ANGLE (VERTICAL)
@ CR>=10
Typical: 135º
Minimum: 115º
@ CR>= 5
Typical: 155º
Minimum: 135º
Response Time
10%-90% @ Ta=25°C
8 ms (typ)
16 ms (max)
Panel Defects Please see Panel Quality Specifications.
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VA702-2_VA721-3_VA721b-3
Panel Characteristics:
1
st
Source Panel
Model number Innolux MT170EN01 V4
Type TN type with LVDS interface
Active Size 337.9 (H) x 270.3 (V)
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.264 mm
GLASS TREATMENT Anti Glare (Hard coating 3H)
# OF BACKLIGHTS 4 CCFL edge-light (2 top / 2 bottom)
BACKLIGHT LIFE 40,000 Hours (Min) / 50,000 (Typ)
Luminance (Center) –
Condition:
CT = 6500K, Contrast = Max,
Brightness = Max
300 cd/m2 (Typ after 30 minute warm up)
250 cd/m2 (Min after 30 minute warm up)
Brightness Uniformity (13 points) 0.8 (Typ), 0.75(Min)
δ = Min Luminance of 13 points/Max
Luminance of 13 points
Contrast Ratio 500:1 (Typ), 400:1 (min)
Color Depth 16.2 million colors (6 bits + 2 bits FRC)
Viewing Angle (Horizontal) @ CR>=10
Typical: 150º
Minimum: 130º
@ CR>= 5
Typical: 170º
Minimum: 150º
VIEWING ANGLE (VERTICAL)
@ CR>=10
Typical: 135º
Minimum: 115º
@ CR>= 5
Typical: 155º
Minimum: 135º
Response Time
10%-90% @ Ta=25°C
8 ms (Tr= 2 ms, Tf = 6 ms) (typ)
18 ms (Tr= 7 ms, Tf = 11 ms)(max)
Panel Defects Please see Panel Quality Specifications.
TFT LCD PANEL (for VA721/b-3)
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VA702-2_VA721-3_VA721b-3
2nd Source Panel
Model number Innolux MT170EN01 V7
Type TN type with LVDS interface
Active Size 337.9 (H) x 270.3 (V)
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.264 mm
GLASS TREATMENT Anti Glare (Hard coating 3H)
# OF BACKLIGHTS 4 CCFL edge-light (2 top / 2 bottom)
BACKLIGHT LIFE 40,000 Hours (Min) / 50,000 (Typ)
Luminance (Center) –
Condition:
CT = 6500K, Contrast = Max,
Brightness = Max
280 cd/m2 (Typ after 30 minute warm up)
250 cd/m2 (Min after 30 minute warm up)
Brightness Uniformity (13 points) 0.8 (Typ), 0.75(Min)
δ = Min Luminance of 13 points/Max
Luminance of 13 points
Contrast Ratio 600:1 (Typ), 500:1 (min)
Color Depth 16.2 million colors (6 bits + 2 bits FRC)
Viewing Angle (Horizontal) @ CR>=10
Typical: 150º
Minimum: 130º
@ CR>= 5
Typical: 170º
Minimum: 150º
VIEWING ANGLE (VERTICAL)
@ CR>=10
Typical: 135º
Minimum: 115º
@ CR>= 5
Typical: 155º
Minimum: 135º
Response Time
10%-90% @ Ta=25°C
8 ms (typ)
16 ms (max)
Panel Defects Please see Panel Quality Specifications.
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VA702-2_VA721-3_VA721b-3
Dimension (Desktop)
Width 378mm (14.9 inch)
Height 374 mm (14.7 inch)
Depth 196 mm ( 7.7 inch)
Monitor Weight 4.5 Kg (9.9 lbs)
*Refer to Figure 1
Dimension (Head Only / Wall Mount) – Unfolding the Monitor Stand
Width 378 mm (14.9 inch)
Height 424 mm (16.7 inch)
Depth 61 mm (2.38 inch)
Monitor Weight 4.5 Kg (9.9 lbs)
*Refer to Figure 1
Ergonomics
Tilt Up
From 0º up to ≧20º
Tilt Down
From 0º down to -3º ~ -5 º
Cabinet Material
Display Head Plastic Material ABS UL94-HB
Neck/Base Plastic Material ABS UL94-HB
Internal Plastic Cabinet Components
All internal plastic cabinet components shall be in
compliance with the requirements of TCO’03
Front Bezel Color
The reference for the bezel is the silver color
(VA702) and the midnight gray color (VA702b) chip
provided by ViewSonic
Neck, Base, and Rear Cover Color
The reference for the bezel is the black color
(VA702) and the midnight gray color (VA702b) chip
provided by ViewSonic.
The color difference between any two cabinet
components shall be less than 0.80 “Delta E”, in the
1976 CIE L*a*b Color space.
Rear logo color
The rear logo is silver color with the black color
background (VA702) and midnight gray color and
background (VA702b) chip provided by ViewSonic
Cabinet Color Drift Due To UV-Light
The color drift due to UV-Light shall be less than 3.0
“Delta E” in the 1976 CIE L*a*b color space. Testing
shall be performed according to the requirements of
ASTM Test Method D4459-93.
Cabinet Texture
Mold-Tech # 11010 used on all external textured
surfaces.
Samples
The supplier shall submit textured color chips, plastic
material specifications, and Material Safety Data
Sheets for approval.
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3. Front Panel Function Control Description
1. Key Function Description
3. OSD Control
3.1 OSD table
Layer 1 Layer 2 Layer 3
Auto Image Adjust
Contrast (+ / -)
Contrast/Brightness
Brightness (+ / -)
Srgb
9300K
6500K
5400K
Red (+ / -)
Green (+ / -)
Color Adjust
User Color
Blue (+ / -)
Information
H Position (+ / -) Manual Image Adjust
H/V Position
V Position (+ / -)
VA702-2_VA721-3_VA721b-3
CONTROL KEY KEYS FUNCTION
[AUTO] [2] By pressing [AUTO] key, “Auto Image Adjust” is performed
[MENU] [1] By pressing [MENU] key, Main menu display
[▼] [▲]
A. When “MENU OSD” display, press these keys to change the contents of
an adjustment item, or change an adjustment value
B. When “MENU OSD” is un-display, press these keys to change brightness
and contrast
[POWER] Power on or power off the monitor
2. Hot Key Operation
CONTROL KEY KEYS FUNCTION
[▼] + [▲]
Recall Contrast or Brightness while in the Contrast or Brightness adjustment,
or recall both of Contrast and Brightness when the OSD is not open.
[1] + [2] Toggle 720x400 and 640x400 mode when input 720x400 or 640x400 mode.
[1] + [▼] + [▲]
White Balance (Not shown on user’s guide)
[1] + [▼]
Power Lock
[1] + [▲]
OSD Lock
Remark : All the short cuts function are only available while OSD off
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H Size + / Fine Tune + / Sharpness + / -
English
French
German
Italian
Spanish
Finnish
Japanese
Simplified Chinese
Language Select
Traditional Chinese
Resolution Notice On/Off
H Position (+ / -)
OSD Position
V Position (+ / -)
OSD Time Out
Setup Menu
OSD Background On/Off
Memory Recall
3.2 OSD lock Menu function
VA702-2_VA721-3_VA721b-3
OSD Lock Menu Function Check
Item Method Phenomenon
Activate OSD lock
[1] + [▲] 10S
Press any of buttons"1", "▼",
"▲", "2" will appear "OSD
Locked" 3s
Deactivate OSD lock:
[1] + [▲] 10S(again)
NOTICE:
When the OSD is locked will lock all functions.
Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate
“OSD Locked”
OSD Lock should not lock Power Button and Power Lock function
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3.3 Power lock Menu function
Power Lock Menu Function Check
Item Method Phenomenon
Activate Power Lock
[1] + [▼] 10S
Can not turn off the LCD;
Press the power button will
appear "Power Button Locked"
OSD 3s;
LCD would automatically turn
back "On" when power is
restored after a power failure
Deactivate Power
Lock
[1] + [▼] 10S(again)
NOTICE:
Status bar indicating Power Button lock or unlock is in progress and when complete it will
indicate “Power Button Locked”
Power should only be lockable in the “On State”
3.4 Resolution notice function
Resolution Notice Menu
Item Method Phenomenon
Activate Resolution
Notice Menu
Resolution Notice OSD should
show on screen after changing
to non-native mode for 30 sec,
And it should disappear after 10s
or by pushing button [1] or [2]
------
Deactivate
Resolution Notice
Menu
Push button [2] under Resolution
Notice OSD, select Disable
-------
3.5 Factory Mode Introduction
When input the signal, press “power key” to turn off the monitor. Press” [▼] +[▲] +[ ] “at the same time
so as to enter factory mode. After power on, press ‘’Menu[1]’’ key, you can see the Factory menu.
INL : Currently using panel model name
V2 050526 : Currently using firmware version information.
Auto Color : Automatically calibrate chip ADC parameter by using chip internal DAC
Color Temperature : The R, G, B of 9300K and 6500K and 5400K and User Mode
Colors are all generated from scaling back end.
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4. Circuit Description
4.1 Switching Mode Power Supply
4.1.1 AC Current Input Circuit
P801 is a connector for connecting AC Power. F801 is a fuse to protect all the circuit. AC input
voltage is from 90V to 264V. R820 and R821 joined between two inputting main circuit to prevent
man from shock. L801 is used to clear up low frequency wave. C801 and C806 are used to
discharge the waves that L801 produced. High frequency waves are damped by C801 and C806.
D801 is a rectifier which composed of 4 build-in diodes, it inverts AC to DC.
4.1.2High Voltage to Low Voltage Control Circuit
C805 is used to smooth the wave from rectifier. IC802 is a highly integrated PWM controller, which
build-in a power MOSFET. When rectified DC high voltage is applied to the DRAIN pin during
start-up, the MOSFET is off initially, and the CONTROL pin capacitor is charged through a
switched high voltage current source connected internally between the DRAIN and CONTROL
pins. When the CONTROL pin voltage Vc reaches approximately 5.8V, the control circuitry is
activated and the soft-start begins. The soft-start circuit gradually increases the duty cycle of the
MOSFET from zero to the maximum value over approximately 10ms. If no external
feedback/supply current is fed into the CONTROL pin by the end of the soft-start, the high voltage
current source is turned off and the CONTROL pin will start discharging in response to the supply
current drawn by the control circuitry.
Resistor R803, R807, R824 and R825 are for line over voltage shut-down (OVP) and line
under-voltage detection (UVP).Resistors R801, R805, R822, and R823 are for external current
limit adjustment, and used to reduce the current limit externally to a value close to the operating
peak current of primary about 1.35A. The mean is power will protected when the primary current
over about 1.35A.
When PWM is turned off, the main current flow will be consumed through D804 and ZD802, This
will prevent MOSFET which built-in IC802 from being damaged under large current impulse and
voltage spike.
D806 and C815 provide internal Auxiliary current to CONTROL pin during normal operation. In
addition, error amplifier and feedback current to the CONTROL pin are for duty cycle control.
4.1.3DC_5V and DC_14V Output Circuit
For DC 5V, D805 is used to rectify the inducted current. R806 and C811 are used to store energy
when current is reversed. The parts including C812, C814, C822, C821, B801 and L803 are used
to smooth the current waves.
For DC 14V, D803 is used to rectify the inducted current. R802 and C802 are used to store energy
when current is reversed. The parts including C808, C810 and L802 are used to smooth the
current waves.
4.1.4Feedback and OVP Protect Circuit
Pin R of IC803 is supplied 2.5V stable voltage. It is connected to 5V and 14V output through R811,
R810 and R818. R811, R810 and R818 are output sampling resistor. When the sampling voltage
more than 2.5V or less than 2.5V, feedback current of IC802 will change, this can change the
voltage from transformer T801.
For 5VDC output OVP, ZD803 is a zener diode, when 5V output voltage becomes up to 5.6V, the
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zener current cause R819 voltage become up to 0.7V, Q801 is triggered and OVP starts. For
12VDC output OVP, ZD804 is a Zener Diode, when 14V output voltage becomes up to 16V, the
zener current cause R819 voltage become up to 0.7V, Q801 is triggered and OVP starts. The
collector current of Q801 is used to make build-in diode light. FB Current of IC802 will be changed;
it can change the voltage from T801.
Q802, R827, R828 and ZD801 make up of dummy loading circuit. For start-up sequence, during
5V output take place high loading first, this dummy loading circuit operated to insure 14V not be
increased.
4. 2 Inverter circuit
4.2.1Low voltage to high voltage circuit
12VDC supplies the power to IC501 through F501; the control signals that BRIGHTNESS and
ON/OFF come from I/F board. ON/OFF signal connect to pin8 of IC501 and makes IC501 enabled.
BRIGHTNESS is connected to pin7 of IC501 to adjust the panel luminance. R524, R529, C505
make up of a delay-time circuit and R528, R523, R524 make up of a voltage divided circuit. C504
is used to filter the high frequency noise. The operation frequency is determined by R522 and
C529. For BURST MODE, its dimming frequency is determined by R527 and C506. C502 is used
for soft start and compensation, C502, C528 are used to filter noise.
The output drives, including NDR4, NDRV2, PDRV3, PDRV1 (pins1, 3, 15, 16 respectively),
generate a square pulses to drive MOSFET U501, U502. And U501, U502 works as full-bridge
topology, it is high efficient, zero voltage switch.
During start up, VSEN (pin9) detects the voltage at the transformer secondary. When VSEN
reaches 3.0V, the output voltage is regulated. If no current is detected for around 1.5 seconds,
IC501 will shut down.
The current flowing through CCFL is detected and regulated through sense resistor R509, R511.
The feedback voltage through R506, R507, and C508 connected to Pin11 (ISEN), and then
compared with a reference voltage (1.5V) via a current amplifier, resulting in PWM drive outputs to
full-bridge switches.
4.2.2Protection circuit
Over Voltage Protection: R501and R502 are connected in high voltage output connector, the
divided AC voltage is inverted DC voltage through D508, R505 and C507are used to rectify wave
& dump noise. Then the voltage signal reaches Pin9 VSEN of IC501, when the voltage changes,
build-in PWM of IC501 will adjust output voltage.
Open Lamp Protection: In normal operation, the resistors R510, R511, R512, R509 are sensed a
high level AC voltage, the AC signal IS1 invert DC voltage through D509, R515, C533, and the
high level DC voltage reaches the gate pin of Q502, similarly, the gate pin of Q503, Q504, Q505
has high level DC voltage. So the gate pin of Q501 has a low level voltage, and the IC501 is
normal operation. Once one of signal IS1, IS2, IS3, and IS4 is low, the voltages of Q501 gate pin
is high level, and make the voltage of ISEN low level, the IC501 will shut down.
4.3I/F Board Circuit
4.3.1Power Input
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+5V is from the power board and supply for U101(FS8860-18PJ)､U102(FS8860-33PJ)､
U105(MCU:W78E65P) and panel. +3.3V output is generated from +5V through C169 and C102
filtering, and U102 outputs. +3.3V is used for U104 (Scaler: TSU16AK). +1.8V output is generated
from +5V through C169, C105 and C102 filtering, and U101 outputs. +1.8V is also used for U104.
4.3.2MCU (W78E65P)
VDD is +5V and its frequency of XTAL1 is 22.1184MHz. U105 #2 is defined as panel-enable.
When the I/O port is low, Q101 and Q102 are conducted. And then after C109 and C110 filtering,
obtain the voltage of VLCD, which will be connected to CN103. U105 #3 is defined as
CCFL-enable. When the I/O port is low, Q103 is pulled up and the backlights are on; When the I/O
port is high, Q103 is conducted and the backlights are off. U105 #4 is defined as DET-VGA,
connected with CN102 #5. U105 #14, #36, #37, #38, #39, #40, #41, #42, #43 are the
communications with U104 (Scaler), which are connected to #72, #31, #78, #77, #30, #70, #71,
#69, #32 of Scaler. U105 #43 outputs reset signal to U104 (Scaler).
U106 is EEPROM used for saving EDID data, which is connected by SCL and SDA pins with #16
and #17 of MCU. Connect #12 to #26 of U105 for ISP.
4.3.3Scaler (TSU16AK)
The frequency of XTAL2 is 14.318MHz. U104 #1, #102-#103, #106-#113, #118-#125, #128 output
LVDS digital data of 8 bit to panel control circuit through CN103. U104 #73 generates a PWM
waveform by regulating the duty to control the brightness of the backlights. U104 #30-#32,
#69-#72, #77-#78 are the communications with U105 (MCU) that are connected to #36-#43 of
MCU. These communications include HWRESET, CSZ/ALE, SCL/RDZ, SDA/WRZ, and
AD0-AD3.
4.3.4VGA Input
Signal R, G, B, SOG input through CN102 #1, #2, #3, and C115, C116, C117 and C118 filtering the
high frequency noise. Signal HSYNC and VSYNC input through CN102 #13 and #14, and C119,
R119, C120, R120 filtering. Then the analog signal enters U104, and then U104 deals with it
internally. In addition, TVS101, TVS102, TVS103 (the three are BAV99), TVS104, TVS105,
TVS106, TVS107 (they are constant voltage diode of 5V6) are ESD protector. Signal DDC-SCL
inputs via CN102 #15, and then passes through TVS107 for ESD protection, goes into EDID
EEPROM IC U103. Signal DDC-SDA inputs via CN102 #12, and then passes through TVS106 for
ESD protection, goes into EDID EEPROM IC U103. CN102 #5 is defined as cable detect pin, this
detector realizes via R107 and U105 #4. The PC-5V of U103 is supplied by PC via CN103 #9 with
D103 for ESD protection, or supplied by Monitor self via D104.U103 is an EEPROM IC, which is a
kind of memory and used for saving EDID data.
4.3.5Button Control
Button “Key-Power” is defined as power on/off, which is connected to U105 #24 through CN106
#4.
Button “Key-2” is defined as two functions of selecting and adjustment, which is connected to
U105 #25 through CN106 #1.
Button “Key-Up” is defined as plus, which is connected to U105 #26 through CN106 #3.
Button “Key-Down” is defined as minus, which is connected to U105 #27 through CN106 #5.
Button “Key-1” is defined as two functions of menu and exit, which is connected to U105 #28
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through CN106 #2.
LED indicator on the front bezel is defined as follows:
a. When press button “Key-Power”, U105 #6 is pulled down and U105 #7 is pulled high, so Q104
is conducted and the LED indicator is green.
b. When in power-saving mode, U105 #6 is pulled high and U105 #7 is pulled down, so Q105 is
conducted and the LED indicator is orange.
FACTORY PRESET TIMING TABLE
Item Resolution
H-Freq.
(KHz)
V-Freq.
(Hz)
Dot Clock
(MHz)
1 640 x 350 31.5kHz 70Hz 25.2
2 640 x 400 31.5kHz 60Hz 25.2
3 640 x 400 31.5kHz 70Hz 25.2
4 24.7kHz 50Hz 19.8
5 31.5kHz 60Hz 25.2
6 35.0kHz 67Hz 30.2
7 37.9kHz 72Hz, 31.5
8 37.5kHz 75Hz, 31.5
9
640 x 480
43.27kHz 85Hz 36.0
10 720 x 400 31.5kHz 70Hz 28.3
11 35.1kHz 56Hz 36.0
12 37.9kHz 60Hz 40.0
13 48.1kHz 72Hz 50.0
14 46.9kHz 75Hz 49.5
15
800 x 600
53.7kHz 85Hz 56.3
16 832 x 624 49.7kHz 75Hz 57.3
17 48.4kHz 60Hz 65.0
18 56.5kHz 70Hz 75.0
19 58.1kHz 72Hz 78.5
20 60.0kHz 75Hz 78.8
21
1024 x 768
68.67kHz 85Hz 94.5
22 1152 x 870 68.6kHz 75Hz 100
23 63.4kHz 60Hz 108
24
1280 x 1024
79.97kHz 75Hz 135
25 1280 x 720 45kHz 60Hz 74.2
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P801
1 2
3
Power On/Off Sequence
1. Hardware Power ON
When power cord is plugged into AC socket, SMPS starts work and provides U105 and U106 with
VCC5V. When VCPU inputs to U105, U105 resets circuit active, sets U105 all registers to preset
modes, and then U105 #43 sends out a HWRESET signal voltage to reset U104, and then monitor
goes into stand-by mode. That means hardware power on has been completed.
2. Software Power ON/OFF
When press power key, U105 #24 recieves low pulse, and sends out “Power on/off” order back to
U104, and then U104 will do the power on/off.
- If Power ON, U105 #6 (LED_Green) will send out High potential, and then LED green on.
- If Power OFF, U105 #7 (LED_Orange) will send out High potential, and then LED Orange on.
The Panel_Vcc, Backlight_En, CLK/DATA output to panel will follow the following sequency.
T1 (ms) T2 (ms) T3 (ms) T4 (ms) T5 (ms) T6 (ms) T7 (ms)
0.1~10 0~10 >200 >100 0~50 0.1~10 >1000
AC Outlet Pin Assignment
Pin Symbol Description
1 L Live
2 N Neutral
3 E GND
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Inner Connector Pin Assignment
6.1 CN501, CN502, CN503, CN504 (Connect to Panel Backlight, SM02B-BHSS-1-TB or equivalent)
Pin Symbol Description
1 H.V. High voltage for lamp
2 L.V. Low voltage for lamp
6.2 CN101 (Power BD to Interface BD)
Pin No. Symbol Description
1,2 +5V (VCC5V) +5.2V output
3,6 GND Ground
4 BRIGHTNESS Brightness Control
5 ON/OFF CCFL on/off Control
6.3 CN106 (Interface BD to Keypad)
Pin No. Symbol Description
1 KEY_SELECT/AUTO Select control and auto adjustment control
2 KEY_MENU/EXIT OSD page selection and exit
3 KEY_UP OSD “? ” control to adjust value to increase
4 KEY_POWER DC power on/off control
5 KEY_DOWN OSD “?” control to adjust value to decrease
6 LED_GREEN Green LED lighting control
7 GND Ground
8 LED_ORANGE Orange LED lighting control
6.4 CN103 (Connect I/F BD to panel, FI-X30S-H or Equivalent)
Pin No. Symbol Function
1 RXO0- minus signal of odd channel 0(LVDS)
2 RXO0+ plus signal of odd channel 0(LVDS)
3 RXO1- minus signal of odd channel 1(LVDS)
4 RXO1+ plus signal of odd channel 1(LVDS)
5 RXO2- minus signal of odd channel 2(LVDS)
6 RXO2+ plus signal of odd channel 2(LVDS)
7 GND Ground
8 RXOC- minus signal of odd clock channel (LVDS)
9 RXOC+ plus signal of odd clock channel (LVDS)
10 RXO3- minus signal of odd channel 3(LVDS)
11 RXO3+ plus signal of odd channel 3(LVDS)
12 RXE0- minus signal of even channel 0(LVDS)
13 RXE0+ plus signal of even channel 0(LVDS)
14 GND Ground
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15 RXE1- minus signal of even channel 1(LVDS)
16 RXE1+ plus signal of even channel 1(LVDS)
17 GND Ground
18 RXE2- minus signal of even channel 2(LVDS)
19 RXE2+ plus signal of even channel 2(LVDS)
20 RXEC- minus signal of even clock channel (LVDS)
21 RXEC+ plus signal of even clock channel (LVDS)
22 RXE3- minus signal of even channel 3(LVDS)
23 RXE3+ plus signal of even channel 3(LVDS)
24 GND Ground
25 GND Ground
26 GND Ground or Open
27 GND Ground
28 VCC Power supply (5.0 V)
29 VCC Power supply (5.0 V)
30 VCC Power supply (5.0 V)
6.5 CN102 (D-SUB Connector)
Pin Symbol Pin Symbol Pin Symbol
1 Red video input 6 Red GND 11 NC
2 Green video input 7 Green GND 12 Serial data (SDA)
3 Blue video input 8 Blue GND 13 H / H+V SYNC
4 NC 9 +5V(from PC) 14 VSYNC
5 Cable Detect 10 GND 15 Data clock line (SCL)
7. Key Parts Pin Assignment
7.1 IC802 (TOP246Y, Power Control IC)
Pin Symbol I/O Description
1 C I Control
2 L I Line Sense
3 X I External Current Limit
4 S O Source of MOSFET(GND)
5 F I Frequency
6 D I Drain of MOSFET
7.2 IC501 (OZ9910G, CCFL inverter controller IC)
Pin No. Symbol I/O Description
1 NDRV4 O
Bottom MOSFET gate drive output in dual forward
converter
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2 PGND High-current power ground
3 NDRV2 O
Bottom MOSFET gate drive output in dual forward
converter
4 GNDA Low-current signal ground
5 CT I Timing capacitor of high frequency oscillator
6 LCT I Timing capacitor of set LPWM frequency
7 ADJ I Control command input –DC
8 ENA I Enable input
9 VSEN I Voltage sense feedback
10 CMP_SST I Soft start and loop compensation capacitor
11 ISEN I Current sense feedback
12 VREF O Reference voltage output
13 VIN I Supply voltage for IC
14 HSB I High side driver buffer output
15 PDRV3 O Top MOSFET gate drive output in dual forward converter
16 PDRV1 O Top MOSFET gate drive output in dual forward converter
7.3 U104 (TSU16AK)
Pin Symbol I/O Description
1 LVBOM O B-Link Negative LVDS Differential Data Output
2 GND Ground
3 BYPASS For External Bypass Capacitor
4 NC Not connected
5 NC Not connected
6 BUSTYPE IN Low : Serial bus; High : Direct bus
7 NC Not connected
8 NC Not connected
9 NC Not connected
10 GND Ground
11 VDDP O Digital Output Power
12 NC Not connected
13 NC Not connected
14 NC Not connected
15 NC Not connected
16 NC Not connected
17 NC Not connected
18 VDDC I Digital Core Power
19 GND Ground
20 GND Ground
21 VDDP O Digital Output Power
22 NC Not connected
23 NC Not connected
24 NC Not connected
25 NC Not connected
26 NC Not connected
27 NC Not connected
28 NC Not connected
29 NC Not connected
30 AD0 I/O DDR direct bus AD0; 4mA driving strength
31 AD3 I/O DDR direct bus AD3; 4mA driving strength
32 HWRESET I Hardware reset; active high
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33 XIN I Crystal Oscillator Input
34 XOUT O Crystal Oscillator Output
35 AVDD_MPLL MPLL Power
36 GND Ground
37 HSYNC0 I Analog HSYNC input
38 VSYNC0 I Analog VSYNC input
39 GND Ground
40 NC Not connected
41 NC Not connected
42 GND Ground
43 NC Not connected
44 NC Not connected
45 VDD_ADC I ADC Power
46 NC Not connected
47 NC Not connected
48 GND Ground
49 NC Not connected
50 NC Not connected
51 VDD_ADC I ADC Power
52 REXT External resistor 390 ohm to AVDD_ADC
53 AVDD_PLL I PLL Power
54 GND Ground
55 AVDD_ADC I ADC Power
56 GND Ground
57 BINOM I Reference ground for analog blue input
58 BINO I Analog blue input
59 GINOM I Reference ground for analog green input
60 GINO I Analog green input
61 SOGIN0 I Sync-on-green input
62 RINOM I Reference ground for analog red input
63 RINO I Analog red input
64 GND Ground
65 AVDD_ADC I ADC Power
66 REFP Internal ADC top de-coupling pin
67 REFM Internal ADC bottom de-coupling pin
68 GND Ground
69 ALE/CS I DDR direct bus ALE; active high
70 WRZ/SDA I/O DDR direct bus WRZ; active low
71 RDZ/SCL I DDR direct bus RDZ; active low
72 INT O CPU interrupt; 4mA driving strength
73 PWM0 O PWM0; 4mA driving strength
74 PWM1 O PWM1; 4mA driving strength
75 NC Not connected
76 NC Not connected
77 AD1 I/O DDR direct bus AD1; 8mA driving strength
78 AD2 I/O DDR direct bus AD2; 8mA driving strength
79 NC Not connected
80 NC Not connected
81 NC Not connected
82 NC Not connected
83 NC Not connected
84 VDDP O Digital Output Power
85 GND Ground
86 GND Ground
87 VDDC I Digital Core Power
88 NC Not connected
89 NC Not connected
90 NC Not connected
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91 NC Not connected
92 NC Not connected
93 NC Not connected
94 VDDP O Digital Output Power
95 GND Ground
96 GND Ground
97 VDDC I Digital Core Power
98 NC Not connected
99 NC Not connected
100 NC Not connected
101 NC Not connected
102 LVA3P O A-Link Positive LVDS Differential Data Output
103 LVA3M O A-Link Negative LVDS Differential Data Output
104 VDDP O Digital Output Power
105 GND Ground
106 LVACKP O A-Link Positive LVDS Differential Clock Output
107 LVACKM O A-Link Negative LVDS Differential Clock Output
108 LVA2P O A-Link Positive LVDS Differential Data Output
109 LVA2M O A-Link Negative LVDS Differential Data Output
110 LVA1P O A-Link Positive LVDS Differential Data Output
111 LVA1M O A-Link Negative LVDS Differential Data Output
112 LVA0P O A-Link Positive LVDS Differential Data Output
113 LVA0M O A-Link Negative LVDS Differential Data Output
114 VDDP O Digital Output Power
115 GND Ground
116 GND Ground
117 VDDC Digital Core Power
118 LVB3P O B-Link Positive LVDS Differential Data Output
119 LVB3M O B-Link Negative LVDS Differential Data Output
120 LVBCKP O B-Link Positive LVDS Differential Clock Output
121 LVBCKM O B-Link Negative LVDS Differential Clock Output
122 LVB2P O B-Link Positive LVDS Differential Data Output
123 LVB2M O B-Link Negative LVDS Differential Data Output
124 LVB1P O B-Link Positive LVDS Differential Data Output
125 LVB1M O B-Link Negative LVDS Differential Data Output
126 VDDP O Digital Output Power
127 GND Ground
128 LVBOP O B-Link Positive LVDS Differential Data Output
7.4 U105 (Micro-controller: W78E65P-40)
Pin Symbol I/O Description
1 P4.2/INT3 A bi-directional I/O port with alternate function.
2 P1,0/T2 O Enable panel power on
3 P1.1/T2EX O Enable CCFL work
4 P1.2 I VGA cable detection
5 P1.3/PWM0 O provide alternated function of PWM Volume
6 P1.4/PWM1 O provide alternated function of PWM Green LED lighting control
7 P1.5/PWM2 O provide alternated function of PWM Orange LED lighting control
8 P1.6/PWM3 Function is the same as that of standard 8052
9 P1.7/PWM4 Function is the same as that of standard 8052
10 RST I Reset control pin
11 P3.0/RXD SCL line of I2C for EDID, debug function
12 P4.3/INT2 PORT 4: A bi-directional I/O port with alternate function.
13 P3.1/TXD SDA line of I2C for EDID, debug function
14 P3.2/INT0 I Interrupt request control pin
15 P3.3/INT1 O Shut Down Volume Mutestandard 8052.
16 P3.4/T0 O SCL line of I2C communication with EEPROM
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17 P3.5/T1 I/O SDA line of I2C communication with EEPROM
18 P3.6/WR I DVI cable detection standard 8052.
19 P3.7/RD O
EEPROM write protection control for DVI EDID Prevent E2PROM
Write instandard 8052.
20 XTAL2 Crystal 22.1184MHz In
21 XTAL1 Crystal 22.1184MHz out
22 GND Sink voltage ground
23 P4.0 A bi-directional I/O port with alternate function.
24 P2.0/A8 DC power on/off control
26 P2.2/A10 OSD t control to adjust value to decrease
27 P2.3/A11 Selection of menu command listed
28 P2.4/A12 OSD page selection
29 P2.5/A13 Auto adjustment control
30 P2.6/A14 A bi-directional I/O port with internal pull-ups
31 P2.7/A15 A bi-directional I/O port with internal pull-ups
32 PSEN Program Store Enable
33 ALE Address Latch Enable
34 P4.1 A bi-directional I/O port with alternate function
35 EA I
External Access Enableexternal ROM. The ROM address and data
will not be presented on the bus ifthe EA pin is high and the
program counter is within the 64 KB area.
36 P0.7/AD7 I/O DDR Direct Bus Communication with Scaler
37 P0.6/AD6 I/O DDR Direct Bus Communication with Scaler
38 P0.5/AD5 I/O DDR Direct Bus Communication with Scaler
39 P0.4/AD4 I/O DDR Direct Bus Communication with Scaler
40 P0.3/AD3 I/O WRZ line of DDR Direct Bus
41 P0.2/AD2 I/O RDZ line of DDR Direct Bus
42 P0.1/AD1 I/O ALE line of DDR Direct Bus
43 P0.0/AD0 O Hardware reset to Scaler
44 +5V I +5V for MCU working voltage
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25 P2.1/A9 OSD u control to adjust value to increase
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5. Adjustment Procedure
Equipment Needed
Ÿ SIGNAL GENERATOR Ÿ Color Analyzer
Ÿ MULTIMETER Ÿ ISP Board
Ÿ SCREW DRIVER Ÿ EDID Board
Ÿ OSCILLOSCOPE Ÿ FOXISP. EXE file
Ÿ Soldering IRON Ÿ EDID program file
Ÿ SOLDER Ÿ Power Adapter output 5V/2A
Ÿ VGA Cable (Black, 15pins point to point)
Burn-in pattern
If it is a new monitor, and in factory mode, if no VGA signal input, Burn-in pattern will self generate
automatically. Burn in patterns are: full Red, Green, Blue, White and Black. You can not escape from
Burn-in pattern until plug in VGA Cable, and then press the power key. Turn the monitor off and then
turn it on.
Auto Color (Automatically calibrate chip ADC parameter by using chip internal DAC)
If it is a new-built set and it is first time to do the “auto color”, please confirm the following steps:
-Connect the VGA cable with the standard video pattern generator and display 16-gray pattern on
the monitor.
- Press “Power” to power off the monitor.
- Press” [ ] +[
] +[ ] “simultaneously to enter factory mode.
- Press ‘’Menu[1]’’, then press ‘’Auto[2]’’ to execute Auto color item.
- After the “Auto Color” process finished, please press “Power” to restart monitor.
EDID (Rewrite EDID data to EEPROM)
If we need to rewrite the EEPROM data, please confirm the following steps.
1. Plug in VGA Cable; we can rewrite the EDID data to EEPROM by using “EDID Rewrite” program.
2. If the “EDID Rewrite” process finished, please pull out VGA cable and press “ 2 ” +“ ”at the same
time.
3. Pull out AC power cable or press power key to restart.
VA702-2_VA721-3_VA721b-3
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Upload firmware to MCU via VGA Cable
1. Connect ISP board between monitor and PC as below configure
2. Before plug in the power cord, make sure keep “ ” key to be pressed, when power on you
can enter ISP mode.
3. 8051ispwriter.exe will detect automatically which MCU used in this monitor. Do it as the
order shown on the screen, choose the corresponding firmware version, and load to MCU.
4. After finish, please plug out power cable and re-start monitor again.
After repair, to ensure the quality you should do the following test and adjustment
Item Content Equipment
Test OSD
function
1.Signal is set as 1280x1024@60Hz
2. LCM button are from left to right, checking whether each
single function key and compound function key can be
worked.
Chroma
Signal Generator
Contrast Check
1. Set input mode to 1280x1024@60Hz
2. Set Pattern to 32 gray shades
3. Set contrast to the max. The brightest 5~6 shades
brightness cannot be distinguished.
Chroma
Signal Generator
Color
Temperature
1. Do “Auto color” at 1280 x 1024@60Hz, 32gray shades
2. Measure color temperature, check it complies with the
following temperature:
5400K x=0.335 +/- 0.02, y=0.350 +/- 0.02
6500K x=0.313 +/- 0.02, y=0.329 +/- 0.02
9300K x=0.283 +/- 0.02, y=0.298 +/- 0.02
Chroma Signal
Generator and color
analyzer
ISP Board
RS232
D-SUB D-SUB
PC
VGA
output
LCD Monitor
D-Sub
Insert to
RS232 9pin
Normal
shipping
cable
Service
cable
+12V Adapter
VA702-2_VA721-3_VA721b-3
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Modes switching
check
1. Use Chroma Pattern Generator to make sequence.
VESA (640x480 800x600 1024x768 1280x1024), MAC
832x624 DOS (640x350 720x400), the detail supported
modes and power saving signal.
2. Confirm the above timing modes must be full screen and
the picture must be normal.
3. LED is Orange at power saving mode.
Chroma Signal
Generator
Y measurement
at default setting
1. Set brightness to default value 100 and contrast to default
value 70 at 6500K
2. At full white patter, Measure Y, which should be
250+/-10cd/m² (QDI 220+/- 10cd/m²)
Chroma Signal
Generator and Color
Analyzer
Panel Flicker
check
1. Mode: 1280x1024@60Hz
2. Set Brightness& contrast to default value
3. Do “Auto Image Adjust”
4. Shut down PC to check whether there’s glitter on the center
of the picture.
Equipment::
Chroma Signal
Generator & PC
Power saving
1. Mode: 1280x1024@60Hz
2. Pattern: full white
3. Brightness: Max.
4. Contrast: Default
5. Check power consumption at each modes
State
Power
Consumption
LED color
Normal
＜38W
Green
Stand By
＜1W
Orange
Power Key Off
＜1W
No
Chroma signal
generator and Power
meter
AC input: 230V/50Hz
VA702-2_VA721-3_VA721b-3
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Disassembly Block
VA702 (INL PANEL)DIS-ASSEMB LY BLOCK
Note: Arrows are disassembly directions.
BASE SUB-ASSM *1
HINGE COVER*2
(SCREW,P ,CROSS,M5*22, Ni*4)
BEZEL SUB-ASSM *1
(SCREW,B,CROSS,T4*10, BLK*4)
HINGE,RIGHT*1
HINGE,LEFT*1
(SCREW,F,CROSS,T4*10, Ni*4)
(SCREW,I ,CROSS,M3*4,Zw*1)
BACK COVER SUB-ASS’Y*1
BEZEL
SUB-ASSM(G/S)
BUTTON FUNCTION KEY*1
LED LENS*1
FRONT BEZEL (G/S)*1
BACK COVER
SUB-ASS’Y
SUPPORT VESA *1
PLATE BASE *1
Rubber spacer*1
Logo *1
BACK COVER *1
BRACKET_R*1
GROUND WIRE*1
KEYPAD CABEL*
KEYPAD ASSM*1
(SCREW,PW,CROSS,M3*5, Ni *2)
(SCREW,I ,CROSS,M3*4,Zw*2)
(Ace tape*4)
INL PANEL*1
BRACKET_R*1
(SCREW,PW,CROSS,M3*5, Ni *2)
(SCREW,I ,CROSS,M3*4,Zw*2)
(Ace tape *2)
IF BOARD*1
POWER BOARD*1
FFC CABLE*1
CLIP,WIRE*1
(SCREW,PW,CROSS,M3*5, Ni*5)
(BOLT, #4-40x11.8, Ni*2)
INSULATOR,MYLAR*1
CHASSIS*1
BASE COVER
SUB-ASS’Y
BASE COVER *1
VA702-2_VA721-3_VA721b-3
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31
Assembly Block
VA702 (INL panel)ASSEMBLY BLOCK
Note: Arrows are assembly directions.
CHASSIS*1
INSULATOR,MYLAR*1
IF BOARD*1
POWER BOARD*1
FFC CABLE*1
CLIP,WIRE*1
(SCREW,PW,CROSS,M3*5, Ni*4)
(BOLT, #4-40x11.8, Ni*2)
INL PANEL*1
BRACKET_L*1
(SCREW,PW,CROSS,M3*5, Ni*2)
(SCREW,I ,CROSS,M3*4,Zw*2)
(Ace tape*2)
FRONT BEZEL (G/S)*1 LED LENS *1
BUTTON FUNCTION KEY*1
LOGO PLATE,THREE BRID*1
LOGO PLATE
“VIEWSONIC”*1
BEZEL
SUB-ASSM(G/S)
BACK COVER *1
BACK COVER
SUB-ASS’Y
LOGO PLATE(ELLIPSE)*1
Rubber*1
SUPPORT VESA *1
BRACKET_R*1
GROUND WIRE*1
KEYPAD CABEL*1
KEYPAD ASSM*1
(SCREW,PW,CROSS,M3*5, Ni*2)
(SCREW,I ,CROSS,M3*4,Zw*2)
(Ace tape*4)
BACK COVER SUB-ASS’Y*1
HINGE,RIGHT*1
HINGE,LEFT*1
(SCREW,F,CROSS,T4*10, Ni*4)
(SCREW,I ,CROSS,M3*4,Zw*1)
BEZEL SUB-ASSM *1
ID LABEL*1
(SCREW,B,CROSS,T4*10, BLK*4)
BASE SUB-ASSM *1
OPENING STAND LABEL*1
HINGE COVER*2
(SCREW,P ,CROSS,M5*22, Ni*4)
BASE COVER
SUB-ASS’Y
BASE COVER *1
PLATE BASE *1
RUBBER FOOT LE1708 *4
S/N LABEL*1
QC LABEL*1
HI POT LABEL*1
V17 LCD MONITOR FINAL ASM(INL)
VA702-2_VA721-3_VA721b-3
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6. Troubleshooting Flow Chart
1. Common Acknowledge
l If you change the interface board, be sure that the U105, U106 and U103 these three
components also changed to the new I/F board because there was program inside. If not,
please re-write EDID or upload firmware into MCU via VGA Cable.
l If you adjust clock and phase, please do it at the condition of Windows shut down pattern.
l If you confirm the R.G.B. color is normal or not, please do it under 16-grey scalar pattern.
l This LCM is analog interface. So if the entire screen is an abnormal color that means the
problem happen in the analog circuit part, if only some scale appears abnormal color that stand
the problem happen in the digital circuit part.
l If you check the H/V position, please use the crosshatch pattern.
l This LCM support more than 30 timing modes, if the input timing mode is out of specification,
the picture may appears abnormally.
l If brightness uneven, repairs Inverter circuit or change a new panel.
l If you find the vertical line or horizontal line lost on the screen, please change panel.
VA702-2_VA721-3_VA721b-3
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2. No Power & Power LED Off
No power
Check primary
rectifier voltage
Check IC802,
C805, T801
Check circuit
if short
Check F801, P801,
D801
Check pin3 of
IC802 voltage
about 1V
Check R801, R805,
R822, R823, R817
Check pin2 of IC802
voltage about 2V
Check R803, R807,
R824, R825
Check pin1 of IC802
voltage is 5.8V
Check R812, R816,
C818
END
VA702-2_VA721-3_VA721b-3
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3. DC output voltage is unstable
Output Voltage Unstable
Check Vbe of
Q801 below 0.3V
Check circuit if
short
Check ZD801, ZD802,
ZD803, D803, D805
Check Q801, Q802
Check reference
voltage
Check pinR
of IC801
Check R809, R814,
IC801, R818
Check R810, R811
Check feedback
circuit
Check Vpin3-4 of
IC801 about 6V
Check Vpin1-2 of
IC801 about 1V
Check C815, D806,
R812
Check R809,
R814
END
VA702-2_VA721-3_VA721b-3
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4. Output power is unstable
Unstable power
Check sampling
Circuit
Check R810,
R811, R818
Change R810, R811,
R818
Check the R pin
voltage of IC803
about 2.5V
Check R809, R808, R814,
D809
Check D806, C815 if
short
Change
D806, C815
Check pin1 of
IC802 voltage
is 5.8V
Check pin3 of
IC802 voltage
about 1V
Change R801, R805,
R822, R823, R817
END
Check the C pin
voltage of IC803
if 3V
Change
IC803
VA702-2_VA721-3_VA721b-3
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5. Backlight can’ t be turned on
No raster?
Is there 14Vdc
voltage on pin13
Yes
Yes
Yes
No
Check power
supply
No
Check I/F
board
Yes
R526 open
No Yes
No
Connecting the output
connector again
Yes
Yes
LED
Green?
Backlight cannot
be turned on.
Is R526
Ok?
Is there high-level
voltage on pin8 of
Check CN501,
CN502, CN503
No
Yes
U501, U502 fail
No
IC501 fail
Is Ok
IC501?
T501, T502 fail
No
Yes
Is ok
Yes
Check protected circuit Q501,
Q502, Q503, Q504
END
Is there pulse waveform
on pin1, pin3, pin15 and
pin16 of IC501 at the
moment of restart?
VA702-2_VA721-3_VA721b-3
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6. Black Screen and backlight turn on
VA702-2_VA721-3_VA721b-3
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7. White Screen
White Screen
WorkmanshipLVDS Cable Reinsert
Change LVDS Cable
Check VLCD is 5V
Check Panel-Enable of
U105(pin2) is low
LVDS Cable NG
Check the HWRESET of
U104 exists
Check RP101
Check the pins of
U105
END
OK
NG
OK
NG
OK OK
NG
OK
NG
NG
Check LVDS signals
OK
Panel Fail
NG
Check
Q101,Q102,Q107,R103
VA702-2_VA721-3_VA721b-3
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8. Bad Screen
Bad Screen
Workmanship
LVDS Cable NG
1.Check
X101,C154,C155
2.Check
X102,C126,C168
Check ALE/RDZ/
WRZ/AD0/AD1/AD2/
AD3/HWRESET
Check the pins of
U104 and U105
LVDS Cable Reinsert
Change LVDS Cable
Check Crystal:pin20,21 of
U105 and pin 33,34 of U104
Check the communication of
U104 and U105
OK
NG
OK
NG
NG
OK
NG
OK
VA702-2_VA721-3_VA721b-3
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7. Recommended Spare Parts List
Rev: 1b
Serial No. Prefix: Q4E
Item ECR/ECN ViewSonic P/N Ref. P/N Location Universal number#
1 Power Cord 10A/250V BLK 6FT CHINA A-00005255 453070800170R
2 Kit Accessory A-00005274 703000000506R
3 Key Board RoHS B-00005278 790411500000R
4 Power Board RoHS B-00005279 790411400600R
5 Interface Board (V4/G3), LE1709- 6A0 ROHS B-00005280 790411300620R
6 Interface Board (V7), LE1709- 6A0 ROHS Added on 09/05/06 B-00008066 790411300630R
7 Base Assembly C-00005262 714020002400R
8 Front Panel C-00005263 714030002400R
9 Back Cover C-00005264 714050002400R
10 Cable D-Sub 15P MALE 6FT BLACK/BLUE,SZ40 CB-00005254 453010100100R
11 Flat Cable 30P 234mm,RoHS CB-00005259 430303000140R
12 Flat Cable 4x2P 189mm CB-00005260 430300800320R
13 Flat Cable - 137mm RoHS CB-00005261 430300100210R
14 LCD PANEL 17" MT170EN01-V4-G1,AM17000054 E-00005275 631102071060R
15 LCD PANEL 17" MT170EN01-V7-G1,AM17000057 Added on 09/05/06 E-00008006 631102071910R
16 LCD PANEL 17" MT170EN01-V7-G2,AM17000057 Added on 09/05/06 E-00008007 631102071920R
17 LCD PANEL 17" MT170EN01-V7-G3,AM17000057 Added on 09/05/06 E-00008008 631102071930R
18 Hinge Cover HW-00005258 501020203000R
19 Screw,B,Cross,T.T-4*10,BLK ,ROHS HW-00005265 509412610500R
20 Screw,F,Cross,T.T-4*10,Ni ROHS HW-00005266 509212610300R
21 Screw,P,Cross,M5*22,Ni,ROHS HW-00005267 509116822300R
22 Screw,I,Cross,M3*4,Zw,ROHS HW-00005268 509016304102R
23 Screw,PW,Cross,W/WAS,M3*5,NI HW-00005269 509146305300R
24 Bolt,#4-40x11.8,Ni FOR D-SUB/DVI HW-00005270 509000000700R
25 Screw,I,Cross,M3*4,Zw,ROHS HW-00005271 509016304102R
26 Hinge,Right, LE1709 HW-00005276 502060401910R
27 Hinge,Left, LE1709 HW-00005277 502060401900R
28
Packing Material:
Foam (Right) P-00005253 506040005510R
29 Craft Box P-00005256 506020006800R
30 Foam (Left) P-00005257 506040005500R
31 Bag,Pe+Epe,L590xW480xT0.6mm (PRINTED)LE1 P-00005272 506120300400R
32 BAG,PLASTIC,l690xW(455+145)xT0.05mm, LE1 P-00005273 506120004500R
Remark 1:
Above listed items are examples, supplier can expand the rows to add more necessary items.
Remark 2:
Hardware:
All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by ViewSonic Corporation. This is
to eliminate repeated cross checks of each item between this version and prior versions.
RECOMMENDED SPARE PARTS LIST (VA702-2)
Description
ViewSonic Model Number: VS10781
Accessories:
Cabinets:
Cables:
Board Assembly:
Electronic
Components:
Page 44
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
41
Serial No. Prefix: Q7P Rev: 1b
Item ECR/ECN ViewSonic P/N Ref. P/N Location Universal number#
1
Accessories: PWRCORD 10A/250V BLK 6FT CHINA.RVV 3Gx0
.
A-00005255 453070800170R
2
PCBA,KEYPAD BOARD, LE1709 ROH
S
B-00005278 790411500000R
3
PCBA,PWR&INV./B, LE1709-6A0 ROH
S
B-00005279 790411400600R
4
PCBA,IF BOARD(V4/G3), LE1709- 6A0 ROH
S
B-00005280 790411300620R
5
PCBA,IF BOARD(V7), LE1709- 6A0 ROH
S
Addded on 09/11/06 B-00008066 790411300630R
6
ASSY,BASE, LE170
9
C-00005262 714020002400R
7
ASSY,BACK COVER, LE170
9
C-00005264 714050002400R
8
ASSY,BEZEL(S),VA721,LE170
9
C-00005291 714030002420R
9
Cable: CABLE,D-SUB 15P MALE 6FT BLACK/BLUE,SZ4
0
CB-00005254 453010100100R
10
HRN LVDS FFC 30P 234mm,RoHSACCX30234KU2
8
CB-00005259 430303000140R
11
HRN ASS'Y 4x2P 189mm UL2651#28SZ504479B
,
CB-00005260 430300800320R
12
HRN ASS'Y 1P 137mm BLACK,UL100 7 #20,Ro
H
CB-00005261 430300100210R
13
LCD PANEL 17" MT170EN01-V4-G1,AM1700005
4
E-00005275 631102071060R
14
LCD PANEL 17" MT170EN01-V7-G1,AM1700005
7
Addded on 09/11/06 E-00008006 631102071910R
15
LCD PANEL 17" MT170EN01-V7-G2,AM1700005
7
Addded on 09/11/06 E-00008007 631102071920R
16
LCD PANEL 17" MT170EN01-V7-G3,AM1700005
7
Addded on 09/11/06 E-00008008 631102071930R
17
COVER,HINGE, LE170
9
HW-00005258 501020203000R
18
SCREW,B,CROSS,T.T-4*10,BLK ,ROH
S
HW-00005265 509412610500R
19
SCREW,F,CROSS,T.T-4*10,Ni ROH
S
HW-00005266 509212610300R
20
SCREW,P,CROSS,M5*22,Ni,ROH
S
HW-00005267 509116822300R
21
SCREW,I,CROSS,M3*4,Zw,ROH
S
HW-00005268 509016304102R
22
SCREW,I,CROSS,M3*4,Zw,ROH
S
HW-00005268 509016304102R
23
SCREW,PW,CROSS,W/WAS,M3*5,N
I
HW-00005269 509146305300R
24
BOLT,#4-40x11.8,Ni FOR D-SUB/DVI CONN.R
O
HW-00005270 509000000700R
25
HINGE,RIGHT, LE170
9
HW-00005276 502060401910R
26
HINGE,LEFT, LE170
9
HW-00005277 502060401900R
27
Packing Material: FOAM, CUSHION,EPS-R, LE170
9
P-00005253 506040005510R
28
FOAM, EPS-L, LE170
9
P-00005257 506040005500R
29
BAG,PE+EPE,L590xW480xT0.6mm (PRINTED)LE1 P-00005272 506120300400R
30
BAG,PLASTIC,l690xW(455+145)xT0.05mm, LE1 P-00005273 506120004500R
31
BOX, CARTON,VA721, LE1709 P-00005289 506020006820R
RECOMMENDED SPARE PARTS LIST (VA721-3)
Description
ViewSonic Model Number: VS10781
HardWare:
Electronics:
Board Assembly:
Cabinet:
Serial No. Prefix: Q84 Rev: 1b
Item ECR/ECN ViewSonic P/N Ref. P/N Location Universal number#
1
Accessories:
Power Cord, 10A/250V BLK 6FT RVV 3Gx0 China A-00005255 453070800170R
2
KIT,ACCESSORY,-INL V4,LE1709 A-00005292 703000000536R
3
Key Board, PCBA LE1709 ROHS B-00005278 790411500000R
4
Inverter Board, PCBA LE1709-6A0 B-00005279 790411400600R
5
Sub Board, IF BOARD (V4/G3), LE1709- 6A0 B-00005280 790411300620R
6
PCBA,IF BOARD(V7), LE1709- 6A0 ROHS Added on 09/11/06 B-00008066 790411300630R
7
Base Assembly, Assy Base C-00005262 714020002400R
8
Back Cover C-00005264 714050002400R
9
FRONT PANEL, Ass'y Bazel (G), VA721b C-00005290 714030002430R
10
Hinge Cover C-00006088 501020203000R
11
Cable, D-Sub , SZ40 RoHS CB-00005254 453010100100R
12
Flat Cable, 30P 234mm RoHS CB-00005259 430303000140R
13
Wire, HRN ASS'Y 4x2P 189mm UL2651 CB-00005260 430300800320R
14
Wire, Hrn Ass'y 1P 137mm Black UL100 7 RoHS CB-00005261 430300100210R
15
LCD Module, 17" MT170EN01- AM17000054 E-00005275 631102071060R
16
LCD PANEL 17" MT170EN01-V7-G1,AM17000057 Added on 09/11/06 E-00008006 631102071910R
17
LCD PANEL 17" MT170EN01-V7-G2,AM17000057 Added on 09/11/06 E-00008007 631102071920R
18
LCD PANEL 17" MT170EN01-V7-G3,AM17000057 Added on 09/11/06 E-00008008 631102071930R
19
Screw B Cross T T-4*10 BLK HW-00005265 509412610500R
20
Screw, F Cross T T-4*10 Ni RoHS HW-00005266 509212610300R
21
Screw, P Cross M5*22 Ni RoHS HW-00005267 509116822300R
22
Screw, PW Cross W/WAS M3*5 Ni RoHS HW-00005269 509146305300R
23
Screw, (Bolt) #4-40x11.8,Ni FOR D-SUB RoHS HW-00005270 509000000700R
24
SCREW,I,CROSS,M3*4,Zw,ROHS HW-00005271 509016304102R
25
Hinge, Right LE1709 HW-00005276 502060401910R
26
Hinge, Left LE1709 HW-00005277 502060401900R
27
Foam, Cushion EPS-R LE1709 P-00005253 506040005510R
28
Foam, Cushion, EPS-L LE1709 P-00005257 506040005500R
29
PE Bag +EPE, L590xW480xT0.6mm P-00005272 506120300400R
30
Bag, Plastic 1690xW(455+145)xT0.05mm, LE1 P-00005273 506120004500R
31
Craft Box VA721b P-00005288 506020006830R
Remark 1:
Above listed items are examples, supplier can expand the rows to add more necessary items.
Remark 2: All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by
ViewSonic Corporation. This is to eliminate repeated cross checks of each item between this version and prior versions.
Cable:
Electronics:
HardWare:
Packing Material:
Board Assembly:
Cabinet:
RECOMMENDED SPARE PARTS LIST (VA721b-3)
Description
ViewSonic Model Number: VS10781
Page 45
ViewSonic Model Number: VS10781
Rev: 1b
Serial No. Prefix: Q4E
Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty
1 B-00005278 790411500000R PCBA,KEYPAD BOARD, LE1709 ROHS For VSCN 1
2 B-00005279 790411400600R PCBA,PWR&INV./B, LE1709-6A0 ROHS For VSCN 1
3 B-00008066 790411300630R PCBA,IF BOARD(V7), LE1709- 6A0 ROHS For VSCN 1
4 N/A 71408276B100R ASSY,PANEL(V7/G1&2&3),LE1709-6A0 For VSCN 1
5 N/A 71407276B100R ASSY,FIANL(S,V7/G1&2&3),LE1709-6A0 For VSCN 1
6 C-00005264 714050002400R ASSY,BACK COVER, LE1709 For VSCN 1
7 C-00005263 714030002400R ASSY,BEZEL(S),LE1709 For VSCN 1
8 C-00005262 714020002400R ASSY,BASE, LE1709 For VSCN 1
9 A-00005274 703000000506R KIT,ACCESSORY,VA702-INL ,LE1709 For VSCN 1
10 E-00008008 631102071930R LCD PANEL 17" MT170EN01-V7-G3,AM17000057 For VSCN 1
11 E-00008007 631102071920R LCD PANEL 17" MT170EN01-V7-G2,AM17000057 For VSCN 1
12 E-00008006 631102071910R LCD PANEL 17" MT170EN01-V7-G1,AM17000057 For VSCN 1
13 N/A 511100001500R CLIP,WIRE.CH-01P(PG), LE1709 For VSCN 1
14 HW-00005265 509412610500R SCREW,B,CROSS,T.T-4*10,BLK ,ROHS For VSCN 4
15 HW-00005266 509212610300R SCREW,F,CROSS,T.T-4*10,Ni ROHS For VSCN 4
16 HW-00005269 509146305300R SCREW,PW,CROSS,W/WAS,M3*5,NI For VSCN 9
17 HW-00005267 509116822300R SCREW,P,CROSS,M5*22,Ni,ROHS For VSCN 4
18 HW-00005271 509016304102R SCREW,I,CROSS,M3*4,Zw,ROHS For VSCN 4
19 HW-00005270 509000000700R BOLT,#4-40x11.8,Ni FOR D-SUB/DVI CONN.RO For VSCN 2
20 N/A 506440003000R LABEL,BLANK,35x8mm, LE1709 ROHS For VSCN 2
21 N/A 506440002600R LABEL,BLANK,210x65mm,LE1709(PALLET) For VSCN 0.02778
22 N/A 506440002400R LABEL,BLANK,50x25mm,LE1709(S/N) For VSCN 1
23 N/A 506440002300R LABEL,BLANK,76.2x76.2mm,LE1709(UPC) For VSCN 1
24 N/A 506431000300R FILM,PE 500mmx900M For VSCN 0.0004
25 N/A 506390500100R LABEL,ENERGY STAR, LE1709 For VSCN 1
26 N/A 506390210110R LABEL,CARTON(8ms),PRC, LE1709 For VSCN 1
27 N/A 506390000600R LABEL,HI-POT PASS, LE1709 For VSCN 1
28 N/A 506390000500R LABEL,QC-PASS,OD=15mm, LE1709 For VSCN 1
29 N/A 506390000400R LABEL,OPENING STAND, LE1709 For VSCN 1
30 N/A 506381000700R TAPE,ACE,45mmx30M(PC=10x45mm),LE1709 For VSCN 0.001
31 N/A 506380002100R TAPE,WRAPPING TYPE(VIEWSONIC),50mmx75M,L For VSCN 0.00513
32 N/A 506380001800R TAPE,WRAPPING TYPE,48mmx50M LE1X04/05 For VSCN 0.004
33 N/A 506250005102R LBL,AGENCY(VA702), LE1709(KOREA MARK) For VSCN 1
34 N/A 506150001310R PALLET,1120x980x120mm,LE1709 For VSCN 0.01389
35 P-00005272 506120300400R BAG,PE+EPE,L590xW480xT0.6mm (PRINTED)LE1 For VSCN 1
36 P-00005273 506120004500R BAG,PLASTIC,l690xW(455+145)xT0.05mm, LE1 For VSCN 1
37 N/A 506102000500R LOGO PLATE,VIEWSONIC, LE1709(ELLIPSE) For VSCN 1
38 N/A 506102000400R LOGO PLATE,VIEWSONIC, LE1709(THREE BIRDS For VSCN 1
39 N/A 506102000300R LOGO PLATE,VIEWSONIC, LE1709 For VSCN 1
40 N/A 506092001400R CARD,WARRANTY, LE1709 For VSCN 1
41 N/A 506091000500R LABEL,WARRANTY, LE1709 For VSCN 1
42 P-00005253 506040005510R CUSHION,EPS-R, LE1709 For VSCN 1
43 P-00005257 506040005500R CUSHION,EPS-L, LE1709 For VSCN 1
44 N/A 506039002301R CORNER PAPER,2050x50x50xT3mm,LE1705 For VSCN 0.05556
45 N/A 506039001200R CORNER PAPER,820x50x50mm For VSCN 0.0556
46 N/A 506037003700R CARDBOARD,COVER,L1120xW980xH120xT5mm,LE1 For VSCN 0.02778
47 N/A 506030200200R CARD,AFTER SERVICE, LE1709.L130xW80 For VSCN 1
48 P-00005256 506020006800R CARTON,VA702, LE1709 For VSCN 1
49 N/A 505040202000R INSULATOR,MYLAR,L79.7xW62.7mm,CHASSIS, L For VSCN 1
50 N/A 503020002600R RUBBER,FOOT,OD14.1xT2.5mm,3M, LE1708 For VSCN 4
51 N/A 503010001700R RUBBER,SPACER,L25xW10xT4.0mm,LE1709 For VSCN 1
52 N/A 502170300400R PLATE,BASE,LE1709 For VSCN 1
53 N/A 502090301300R CHASSIS, LE1709 For VSCN 1
54 N/A 502080300300R SUPPORT,VESA, LE1709 For VSCN 1
55 HW-00005276 502060401910R HINGE,RIGHT, LE1709 For VSCN 1
56 HW-00005277 502060401900R HINGE,LEFT, LE1709 For VSCN 1
57 N/A 502020300710R BRACKET,RIGHT, LE1709 For VSCN 1
58 N/A 502020300700R BRACKET,LEFT, LE1709 For VSCN 1
59 N/A 501240201000R BASE, LE1709 For VSCN 1
60 N/A 501120101200R LENS, LE1709 For VSCN 1
61 N/A 501030201900R BUTTON,FUNCTION KEY, LE1709 For VSCN 1
62 C-00006088 501020203000R COVER,HINGE, LE1709 For VSCN 2
63 N/A 501020202900R COVER,BACK, LE1709 For VSCN 1
64 N/A 501010202700R BEZEL,FRONT(SILVER),VA702, LE1709 For VSCN 1
65 A-00005255 453070800170R PWRCORD 10A/250V BLK 6FT CHINA.RVV 3Gx0. For VSCN 1
66 CB-00005254 453010100100R CABLE,D-SUB 15P MALE 6FT BLACK/BLUE,SZ40 For VSCN 1
BOM LIST (VA702-2)
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
42
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Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty
67 CB-00005259 430303000140R HRN LVDS FFC 30P 234mm,RoHSACCX30234KU28 For VSCN 1
68 CB-00005260 430300800320R HRN ASS'Y 4x2P 189mm UL2651#28SZ504479B, For VSCN 1
69 CB-00005261 430300100210R HRN ASS'Y 1P 137mm BLACK,UL100 7 #20,RoHS For VSCN 1
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
43
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44
Rev: 1b
Serial No. Prefix: Q7P
Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty
1 CB-00005254 453010100100R CABLE,D-SUB 15P MALE 6FT BLACK/BLUE,SZ40 For VSCN & VSA 1
2 A-00005255 453070800170R PWRCORD 10A/250V BLK 6FT CHINA.RVV 3Gx0. For VSCN 1
3 A-00006679 453070800250R PWR CORD 10A/125V BLK 6FT UL/CSA,SVT 18x For VSA 1
4 N/A 506250005120R LBL,AGENCY(VA721), LE1709 For VSCN & VSA 1
5 N/A 506440002300R LABEL,BLANK,76.2x76.2mm,LE1709(UPC) For VSCN & VSA 1
6 N/A 506440002400R LABEL,BLANK,50x25mm,LE1709(S/N) For VSCN & VSA 1
7 N/A 506390000400R LABEL,OPENING STAND, LE1709 For VSCN & VSA 1
8 N/A 506390000500R LABEL,QC-PASS, LE1709 For VSCN 1
9 N/A 506390000600R LABEL,HI-POT PASS, LE1709 For VSCN & VSA 1
10 P-00005253 506040005510R CUSHION,EPS-R, LE1709 For VSCN & VSA 1
11 P-00005257 506040005500R CUSHION,EPS-L, LE1709 For VSCN & VSA 1
12 P-00005289 506020006820R CARTON,VA721, LE1709 For VSCN & VSA 1
13 P-00005272 506120300400R BAG,PE+EPE,L590xW480xT0.6mm(PRINTED)LE19 For VSCN & VSA 1
14 N/A 506380001800R TAPE,WRAPPING TYPE,48mmx50M ROHS LE1915 For VSCN & VSA 0.004
15 N/A 506431000300R FILM,PE 500mmx900M ROHS For VSCN & VSA 0.0004
16 N/A 506039002301R CORNER PAPER,2050x50x50xT3mm,LE1709 ROHS For VSCN & VSA 0.05556
17 N/A 506039001200R CORNER PAPER,820x50x50mm For VSCN & VSA 0.05556
18 N/A 506150001310R PALLET,1120x980x120mm.LE1709 ROHS For VSCN & VSA 0.01389
19 N/A 506037003700R CARDBOARD,COVER,L1120xW980xH120xT5mm,LE1 For VSCN & VSA 0.02778
20 A-00005292 703000000536R KIT,ACCESSORY,VA721/B-INL,LE1709 For VSCN & VSA 1
21 N/A 71407276B110R ASSY,FIANL(S,V7/G1&2&3),LE1709-6A0(VA721) For VSCN & VSA 1
22 C-00006088 501020203000R COVER,HINGE, LE1709 For VSCN & VSA 2
23 HW-00005276 502060401910R HINGE,RIGHT, LE1709 For VSCN & VSA 1
24 HW-00005277 502060401900R HINGE,LEFT, LE1709 For VSCN & VSA 1
25 HW-00005265 509412610500R SCREW,B,CROSS,T.T-4*10,BLK ,ROHS For VSCN & VSA 4
26 HW-00005266 509212610300R SCREW,F,CROSS,T.T-4*10,Ni ROHS For VSCN & VSA 4
27 HW-00005267 509116822300R SCREW,P,CROSS,M5*22,Ni,ROHS For VSCN & VSA 4
28 C-00005291 714030002420R ASSY,BEZEL(S),VA721,LE1709 For VSCN & VSA 1
29 N/A 501010202720R BEZEL,FRONT(SILVER),VA721,LE1709 For VSCN & VSA 1
30 N/A 501030201900R BUTTON,FUNCTION KEY, LE1709 For VSCN & VSA 1
31 N/A 501120101200R LENS, LE1709 For VSCN & VSA 1
32 N/A 506102000400R LOGO PLATE,VIEWSONIC, LE1709(THREE BIRDS For VSCN & VSA 1
33 N/A 506102000300R LOGO PLATE,VIEWSONIC, LE1709 For VSCN & VSA 1
34 C-00005264 714050002400R ASSY,BACK COVER, LE1709 For VSCN & VSA 1
35 N/A 501020202900R COVER,BACK, LE1709 For VSCN & VSA 1
36 N/A 502080300300R SUPPORT,VESA, LE1709 ROHS For VSCN & VSA 1
37 N/A 503010001700R RUBBER,SPACER,L25xW10xT4.0mm,LE1709 For VSCN & VSA 1
38 N/A 506102000500R LOGO PLATE,VIEWSONIC, LE1709(ELLIPSE) For VSCN & VSA 1
39 C-00005262 714020002400R ASSY,BASE, LE1709 For VSCN & VSA 1
40 N/A 501240201000R BASE, LE1709 For VSCN & VSA 1
41 N/A 502170300400R PLATE,BASE, LE1709 For VSCN & VSA 1
42 N/A 503020002600R RUBBER,FOOT,OD14.1xT2.5mm,3M, LE1708 ROH For VSCN & VSA 4
43 N/A 71408276B100R ASSY,PANEL(V7/G1&2&3),LE1709-6A0 For VSCN & VSA 1
44 E-00008006 631102071910R LCD PANEL 17" MT170EN01-V7-G1,AM17000057 For VSCN & VSA 1
45 E-00008007 631102071920R LCD PANEL 17" MT170EN01-V7-G2,AM17000057 For VSCN & VSA 1
46 E-00008008 631102071930R LCD PANEL 17" MT170EN01-V7-G3,AM17000057 For VSCN & VSA 1
47 CB-00005259 430303000140R HRN LVDS FFC 30P 234mm,RoHSACCX30234KU28 For VSCN & VSA 1
48 B-00005278 790411500000R PCBA,KEYPAD BOARD, LE1709 ROHS For VSCN & VSA 1
49 CB-00005260 430300800320R HRN ASS'Y 4x2P 189mm UL2651#28SZ504479B, For VSCN & VSA 1
50 B-00005279 790411400600R PCBA,PWR&INV./B, LE1709-6A0 ROHS For VSCN & VSA 1
51 B-00008066 790411300630R PCBA,IF BOARD(V7), LE1709- 6A0 ROHS For VSCN & VSA 1
52 CB-00005261 430300100210R HRN ASS'Y 1P 137mm BLACK,UL100 7 #20,RoH For VSCN & VSA 1
53 N/A 506381000700R TAPE,ACE,45mmx30M(PC=10x45mm),LE1709 ROH For VSCN & VSA 0.001
54 N/A 502090301300R CHASSIS, LE1709 For VSCN & VSA 1
55 N/A 502020300700R BRACKET,LEFT, LE1709 For VSCN & VSA 1
56 N/A 502020300710R BRACKET,RIGHT, LE1709 For VSCN & VSA 1
57 HW-00005269 509146305300R SCREW,PW,CROSS,W/WAS,M3*5,NI For VSCN & VSA 9
58 HW-00005270 509000000700R BOLT,#4-40x11.8,Ni FOR D-SUB/DVI CONN.RO For VSCN & VSA 2
59
HW-00005271 509016304102R SCREW,I,CROSS,M3*4,Zw,ROHS For VSCN & VSA 4
60 N/A 511100001500R CLIP,WIRE,CH-01P(PG), LE1709 For VSCN & VSA 1
61 N/A 505040202000R INSULATOR,MYLAR,L79.7xW62.7mm,CHASSIS, For VSCN & VSA 1
62 HW-00005271 509016304102R SCREW,I,CROSS,M3*4,Zw,ROHS For VSCN & VSA 1
63 N/A 506440002600R LABEL,BLANK,210x65mm,LE1709(PALLET) For VSCN & VSA 0.02778
64 N/A 506380002100R TAPE,WRAPPING TYPE(VIEWSONIC),50mmx75M, For VSCN & VSA 0.00513
65 N/A 506390210100R LABEL,CARTON(8ms), LE1709,L89xW58mm For VSA 1
66 N/A 506390210110R LABEL,CARTON(8ms),PRC, LE1709 For VSCN 1
67 N/A 506091000500R LABEL,WARRANTY, LE1709 For VSCN 1
68 N/A 506092001400R CARD,WARRANTY, LE1709 For VSCN 1
69 P-00005273 506120004500R BAG,PLASTIC,L690xW(455+145)xT0.05mm, For VSCN 1
70 N/A 506030200200R CARD,AFTER SERVICE, LE1709,L130xW80 For VSCN 1
71 N/A 506390500100R LABEL,ENERGY STAR, LE1709 For VSCN & VSA 1
ViewSonic Model Number: VS1078
BOM LIST (VA721-3)
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45
ViewSonic Model Number: VS10781
Rev: 1b
Serial No. Prefix: Q84
Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty
1 CB-00005254 453010100100R CABLE,D-SUB 15P MALE 6FT BLACK/BLUE,SZ40 For VSCN 1
2 A-00005255 453070800170R PWRCORD 10A/250V BLK 6FT CHINA.RVV 3Gx0. For VSCN 1
3 N/A 506250005130R LBL,AGENCY(VA721B), LE1709 For VSCN 1
4 N/A 506440002300R LABEL,BLANK,76.2x76.2mm,LE1709(UPC) For VSCN 1
5 N/A 506440002400R LABEL,BLANK,50x25mm,LE1709(S/N) For VSCN 1
6 N/A 506390000400R LABEL,OPENING STAND, LE1709 For VSCN 1
7 N/A 506390000500R LABEL,QC-PASS, LE1709 For VSCN 1
8 N/A 506390000600R LABEL,HI-POT PASS, LE1709 For VSCN 1
9 P-00005253 506040005510R CUSHION,EPS-R, LE1709 For VSCN 1
10 P-00005257 506040005500R CUSHION,EPS-L, LE1709 For VSCN 1
11 P-00005288 506020006830R CARTON,VA721B, LE1709 For VSCN 1
12 P-00005272 506120300400R BAG,PE+EPE,L590xW480xT0.6mm(PRINTED)LE19 For VSCN 1
13 N/A 506380001800R TAPE,WRAPPING TYPE,48mmx50M ROHS LE1915 For VSCN 0.004
14 N/A 506431000300R FILM,PE 500mmx900M ROHS For VSCN 0.0004
15 N/A 506039002301R CORNER PAPER,2050x50x50xT3mm,LE1709 ROHS For VSCN 0.05556
16 N/A 506039001200R CORNER PAPER,820x50x50mm For VSCN 0.05556
17 N/A 506150001310R PALLET,1120x980x120mm.LE1709 ROHS For VSCN 0.01389
18 N/A 506037003700R CARDBOARD,COVER,L1120xW980xH120xT5mm,LE1 For VSCN 0.02778
19 A-00005292 703000000536R KIT,ACCESSORY,VA721/B-INL,LE1709 For VSCN 1
20 N/A 71407276B111R ASSY,FIANL(G,V7/G1&2&3),LE1709-6A0(VA721B) For VSCN 1
21 C-00006088 501020203000R COVER,HINGE, LE1709 For VSCN 2
22 HW-00005276 502060401910R HINGE,RIGHT, LE1709 For VSCN 1
23 HW-00005277 502060401900R HINGE,LEFT, LE1709 For VSCN 1
24 HW-00005265 509412610500R SCREW,B,CROSS,T.T-4*10,BLK ,ROHS For VSCN 4
25 HW-00005266 509212610300R SCREW,F,CROSS,T.T-4*10,Ni ROHS For VSCN 4
26 HW-00005267 509116822300R SCREW,P,CROSS,M5*22,Ni,ROHS For VSCN 4
27 C-00005290 714030002430R ASSY,BEZEL(G),VA721B,LE1709 For VSCN 1
28 N/A 501010202730R BEZEL,FRONT(GRAY),VA721B,LE1709 For VSCN 1
29 N/A 501030201900R BUTTON,FUNCTION KEY, LE1709 For VSCN 1
30 N/A 501120101200R LENS, LE1709 For VSCN 1
31 N/A 506102000400R LOGO PLATE,VIEWSONIC, LE1709(THREE BIRDS For VSCN 1
32 N/A 506102000300R LOGO PLATE,VIEWSONIC, LE1709 For VSCN 1
33 C-00005264 714050002400R ASSY,BACK COVER, LE1709 For VSCN 1
34 N/A 501020202900R COVER,BACK, LE1709 For VSCN 1
35 N/A 502080300300R SUPPORT,VESA, LE1709 ROHS For VSCN 1
36 N/A 503010001700R RUBBER,SPACER,L25xW10xT4.0mm,LE1709 For VSCN 1
37 N/A 506102000500R LOGO PLATE,VIEWSONIC, LE1709(ELLIPSE) For VSCN 1
38 C-00005262 714020002400R ASSY,BASE, LE1709 For VSCN 1
39 N/A 501240201000R BASE, LE1709 For VSCN 1
40 N/A 502170300400R PLATE,BASE, LE1709 For VSCN 1
41 N/A 503020002600R RUBBER,FOOT,OD14.1xT2.5mm,3M, LE1708 ROH For VSCN 4
42 N/A 71408276B100R ASSY,PANEL(V7/G1&2&3),LE1709-6A0 For VSCN 1
43 E-00008006 631102071910R LCD PANEL 17" MT170EN01-V7-G1,AM17000057 For VSCN 1
44 E-00008007 631102071920R LCD PANEL 17" MT170EN01-V7-G2,AM17000057 For VSCN 1
45 E-00008008 631102071930R LCD PANEL 17" MT170EN01-V7-G3,AM17000057 For VSCN 1
46 CB-00005259 430303000140R HRN LVDS FFC 30P 234mm,RoHSACCX30234KU28 For VSCN 1
47 B-00005278 790411500000R PCBA,KEYPAD BOARD, LE1709 ROHS For VSCN 1
48 CB-00005260 430300800320R HRN ASS'Y 4x2P 189mm UL2651#28SZ504479B, For VSCN 1
49 B-00005279 790411400600R PCBA,PWR&INV./B, LE1709-6A0 ROHS For VSCN 1
50 B-00008066 790411300630R PCBA,IF BOARD(V7), LE1709- 6A0 ROHS For VSCN 1
51 CB-00005261 430300100210R HRN ASS'Y 1P 137mm BLACK,UL100 7 #20,RoHS For VSCN 1
52 N/A 506381000700R TAPE,ACE,45mmx30M(PC=10x45mm),LE1709 ROHS For VSCN 0.001
53 N/A 502090301300R CHASSIS, LE1709 For VSCN 1
54 N/A 502020300700R BRACKET,LEFT, LE1709 For VSCN 1
55 N/A 502020300710R BRACKET,RIGHT, LE1709 For VSCN 1
56 HW-00005269 509146305300R SCREW,PW,CROSS,W/WAS,M3*5,NI For VSCN 9
57 HW-00005270 509000000700R BOLT,#4-40x11.8,Ni FOR D-SUB/DVI CONN.RO For VSCN 2
58
HW-00005271 509016304102R SCREW,I,CROSS,M3*4,Zw,ROHS For VSCN 4
59 N/A 511100001500R CLIP,WIRE,CH-01P(PG), LE1709 For VSCN 1
60 N/A 505040202000R INSULATOR,MYLAR,L79.7xW62.7mm,CHASSIS, For VSCN 1
61 HW-00005271 509016304102R SCREW,I,CROSS,M3*4,Zw,ROHS For VSCN 1
62 N/A 506440002600R LABEL,BLANK,210x65mm,LE1709(PALLET) For VSCN 0.02778
63 N/A 506380002100R TAPE,WRAPPING TYPE(VIEWSONIC),50mmx75M, For VSCN 0.00513
64 N/A 506390210110R LABEL,CARTON(8ms),PRC, LE1709 For VSCN 1
65 N/A 506091000500R LABEL,WARRANTY, LE1709 For VSCN 1
66 N/A 506092001400R CARD,WARRANTY, LE1709 For VSCN 1
67 P-00005273 506120004500R BAG,PLASTIC,L690xW(455+145)xT0.05mm, For VSCN 1
68 N/A 506030200200R CARD,AFTER SERVICE, LE1709,L130xW80 For VSCN 1
69 N/A 506390500100R LABEL,ENERGY STAR, LE1709 For VSCN 1
BOM LIST (VA721b-3)
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46
8. Exploded Diagram and Exploded Parts List
Model
Title
Date Rev:
ViewSonic Corporation
E
E
F
F
A
A
A
A
B
D
C
E
B
B
B
C
C
C
D
D
D
D
D
D
D
E
D
C
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47
VA702-2_VA721-3_VA721b-3
ViewSonic Model Number: VS10781
Rev: 1a
Serial No. Prefix: Q4F / Q7P / Q84
Item ViewSonic P/N Ref. P/N Description Q't
y
1 C-00003154 714030002400 ASSY,BAXEL(S)/BEZEL(G),LE1709 1
2 E-00003048 631102070270 LCD Panel 17"MT170EN01-V1(Innolux) 1
3 B-00003041 790411300600 PCBA IF BOARD, LE1709-6A0 1
4 CB-00003155 430303000140 HRN LVDS FFC 30P 234mm,ACCX3023KU28MY 1
5 B-00003043 790411400600 PCBA PWR&INV./B LE1709-6A0 1
6 HW-00003156 502020300700 BRACKET, LEFT, LE1709 1
7 B-00003172 502090301300 CHASSIS, LE1709 1
8 CB-00003157 430300800320 HRN ASS'Y 4x2P 189mm 1
9 HW-00003158 502020300710 BRACKET, RIGHT, LE1709 1
10 HW-00003159 502060401900 HINGE, LEFT, LE1709 1
11 C-00003160 714050002400 Assy,Back Cover, LE1709 1
12 HW-00003161 502060401910 HINGE, RIGHT, LE1709 1
13 B-00003042 790411500000 PCBA, Keypad board, LE1709 1
14 CB-00003162 430300100190 HRN ASS'Y 1P 157mm BLACK, UL1007#20 1
15 C-00003163 714020002400 Assy, Base, LE1709 1
16 C-00003164 501020203000 COVER, HINGE, LE1709 2
17 M-00003165 505040202000 INSULATOR, MYLAR, CHASSIS, LE1708 1
EXPLODED PARTS LIST (VA702-2 / VA721-3 / VA721b-3)
Page 51
ViewSonic Corporation Confidential - Do Not Copy
48
Packing for Shipping
VA702-2_VA721-3_VA721b-3
Page 52
Rev: 1a
Item
ViewSonic P/N
Ref. P/N
Location
Q'ty
N/A
506020006800
P-00003056
506020006810
2 N/A
50604005500
Cushion,Left,LE1709
1
3 A-00003676
453070800170
PWRCORD 10A/250V BLK 6FT CHINA
1
4 P-00003943
506120300400
BAG,PE+EPE,L590xW480xT0.6mm (PRINTED)LE1
1
5 N/A Accessory Assm&After service card 1set
N/A 703000000505/6
N/A 703000000515/6
5.2 N/A
506030200200
CARD,AFTER SERVICE, LE1709.L130xW80
1
6 CARD,WARRANTY Assm 1set
6.1 N/A
506092001400
CARD,WARRANTY, LE1709
1
6.2 N/A
506440003000
LABEL,BLANK,35x8mm,LE1709
2
7 CB-00004328
453010100070
CABLE,D-SUB 15P MALE 6FT BLACK/BLUE(MINI)
1
8 P-00003052
506040005510
Cushion,right,LE1709
0.048
9 N/A
506380001800
TAPE,WRAPPING TYPE,48mmx50M LE1X04/05
1
10 N/A
506440002300
LABEL,BLANK,76.2x76.2mm,LE1709(UPC)
1
11 N/A
506390400100R
LABEL,PRODUCT(2), LE1709
1
12 N/A
506120004500
BAG,PLASTIC,l690xW(455+145)xT0.05mm, LE1709
1
13 N/A
506091000500
LABEL,WARRANTY, LE1709
1
1
1
PACKING PARTS LIST(VA702-2)
ViewSonic Model Number: VS10781-2
Carton LE1709
Accessory Assm
1
5.1
ViewSonic Model Number: VS10781-3W
Rev: 1a
Item
ViewSonic P/N
Ref. P/N
Location
Q'ty
N/A 506020006820
N/A 506020006830
2 P-00003051
506040005500
Cushion,Left,LE1709
1
3 A-00003676
453070800170
PWRCORD 10A/250V BLK 6FT CHINA
1
4 P-00003943
506120300400
BAG,PE+EPE,L590xW480xT0.6mm (PRINTED)LE1
1
5
Accessory Assm&After service card
1set
5.1
N/A
703000000526R
Accessory Assm
1
5.2
N/A
506030200200
CARD,AFTER SERVICE, LE1709.L130xW80
1
6
CARD,WARRANTY Assm
1set
6.1 N/A
506092001400
CARD,WARRANTY, LE1709
1
6.2 N/A
506440003000
LABEL,BLANK,35x8mm,LE1709
2
7 CB-00004328
453010100070
CABLE,D-SUB 15P MALE 6FT BLACK/BLUE(MINI)
1
8 P-00003052
506040005510
Cushion,right,LE1709
0.048
9 N/A
506380001800
TAPE,WRAPPING TYPE,48mmx50M LE1X04/05
1
10 N/A
506440002300
LABEL,BLANK,76.2x76.2mm,LE1709(UPC)
1
11 N/A
506500003110R
LABEL,"3" MARK(20x20mm), LE1709 (VA721/b)
1
12 N/A
506120004500
BAG,PLASTIC,l690xW(455+145)xT0.05mm, LE1709
1
13 N/A
506091000500
LABEL,WARRANTY, LE1709
1
Carton LE1709(VA721/b) 11
PACKING PARTS LIST(VA721/b-3)
ViewSonic Corporation Confidential - Do Not Copy
49
VA702-2_VA721-3_VA721b-3
Page 53
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
50
9. Block Diagram
XTAL1
22.118MHz
TOP246Y
OPP/OCP
LDO
5V-3.3V
5V-1.8V
Transformer1
OZ9910
Rectifier &
Filter Circuit
Panel InterfaceLamp2
Keyboard
Lamp3
Keypad
Connector
VGA Input
VGA Connector
Scaler
TSU16AK
AC Line Filter
AC Socket
TFT LCD Panel 17"
MT170EN01(Innolux)
Feedback
OVP
LTV817
Power
Transformer
MCU
W78E65p
Power
Transformer2
Lamp1
Lamp4
AC Input 90V-264V
XTAL2
14.318MHz
24C16
Open
Protection
Rectifier &
Filter Circuit
24C02
Block Diagram
On/Off
Brightness
On/Off
Brightness
12V
5V
AP2301
PMBT3906
Panel Enable
AOP605L
1
2
3
4
1
2
3
4
5V
AOP605L
Page 54
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
51
10. Schematic Diagrams
R823
3M3
C824
4700P Y1
R807
510K
C807
33n 400V/ NC
R813
1K
1 2
D804
MUR1100
R811
51K 1%
C811
1n 500V
R827
10K
C818
47u/25V
R803
510K
C804 0.47u X2
D803
1
2
3
R819
10K
C812
1000u 10V
C819
47u/25V
R805
3M3
R818
3K3 1%
C815
47u/25V
C816
0.1u 100V
+14V
R821 1M
C801
2200P Y2
- +
D801
BL4-06
1
2
4
3
ZD803
5.6V
L802
5uH 5A
C810
220u 25V
T801
TRF-EI28
1
2
3
5
4
11
6
7
9
10
8
R817
12K
ON/OFF
C806
2200P Y2
C820
2200P Y1
SRF5-04
F801
2A 250V
C817
0.1u 50V
CN801
08DA-6S
1
2
3
4
5
6
IC802
TOP246Y
1
2
345
6
C
L
XSF
D
IC801
LTV817
3
14
2
R810
5K1 1%
R801
3M3
R822
3M3
R828
100R 1W
R829
200R
12
D806
A02
MEB
C821
0.1u/50V
ZD801
9.1V
C
R
A
IC803
TL431
R808
10K
R804
68R 1/2W
R809
100R
L801
12mH
41
32
P801
AC IN
1 2 3
250V
L803
5uH 5A
RT801
5R
R815
1K
C822
0.1u 50V
400V
SRF8-10
PGND
C814
47u 25V
Q802
2SC1815
1
3
2
BRIGHTNESS
TO SCALER BD CN101
Q801
PMBT3904
12
D809
1N4148W
R812
6R8
VCC5V
N
R820 1M
275V
C813
47p 1KV
R816
6R8
250V
C808
1000u 25V
R825
470K
R802
10R
C826
1000u 10V
R824
510K
VCC5V
C802
1n 500V
C803
4n7/1KV
L
C805
100u 450V
ZD802
P6KE200A
R806
10R
B801
BEAD CORE 3.5x9
ZD804
16V
D805
1
2
3
R814
1K
Model
Title
Date Rev:
ViewSonic Corporation
POWER SUPPLY
Page 55
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
52
IS1Q504
2N7002
1
32
51KO
CN503
H
L
Q501
2N7002
1
32
D509
1N4148W
+5V
OP4
R517
1M
C503
100n/50V
Q503
2N7002
1
32
47KO
R511
510 1%
R509
C535
NC
IS1
560O
BRIGHTNESS
R522
91K 1%
C530
6.8n/50V
OP3
D501
BAV99
12
3
R524
ON/OFF
OVP1
R529
1M
IS3
D511
1N4148W
D508
BAV99
1
2
3
R521
1M
C528
1.0u/25V
+14V
510O
OP3
IS3
C526
10P/3KV
510O
C506
4700P/50V
OP1
12
D514
SKS20-04AT
510O
R506
3.9K 1%
C523
6.8n/50V
QDI
R502
3.9K
5V
C525
5P/3KV
D506
BAV99
12
3
R524
51K 1%
T501
EEL-19 22:2600
2
3
5
6
8
7
D503
BAV99
1
2
3
C502
2.2u/25v
IC501
OZ9910G
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
NDRV2
PGND
NDRV1
GNDA
CT
LCT
DIM
ENA VSEN
CMP_SST
ISEN
V5000
VIN
HSB
PDRV1
PDRV2
C511
2.2uF/25V
C508
22n/25V
CN504
H
L
R528
182K 1%
C532
0.1u/50V
C527
5P/3KV
5V
R519
1M
560O
C524
10P/3KV
C504
1n/50V
C534
0.1u/50V
OVP2
OP2
R513
510 1%
+
C522
220uF/25V
AUO
Q505
2N7002
1
32
D510
1N4148W
R511
U502
AOP605
1
2
3
4 5
6
7
8
S1
G1
S2
G2 D2
D2
D1
D1
U501
AOP605
1
2
3
4 5
6
7
8
S1
G1
S2
G2 D2
D2
D1
D1
+
C509
220uF/25V
D505
BAV99
1
2
3
R509 510 1%
OP4
R508
100K
R527
3.3M 1%
Item
C505
0.01u/25V
NOTE:
紅色粗線:表示高電壓迴路
;
紅色虛線:表示易發熱元件
;
橘色粗線:表示大電流迴路
;
OP1
Q502
2N7002
1
32
D507
BAV99
1
2
3
D512
1N4148W
OP2
T502
EEL-19 22:2600
2
3
5
6
8
7
510O
D504
BAV99
12
3
C507
2200p/50V
R526
47K 1%
C529
220P/50V
5V
R510
1k
OVP2
R514 510 1%
CN502
H
L
C533
0.1u/50V
R507
3.9K 1%
12
D513 SKS20-04AT
R505
1M
C531
0.1u/50V
R515
1M
47KO
C536
NC
INL
OVP1
R512
1k
R503
3M/3KV
R501
3M/3kv
D502
BAV99
12
3
CN501
H
L
R504
3.9K
R523
100K 1%
Model
Title
Date Rev:
ViewSonic Corporation
INVERTER
Page 56
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
53
VCC3.3
+
C106
100uF/16V
VAA3
VCC1.8
Q102
PMBT3906
+
C169
100uF/16V
ON/OFF
VAA2
C102
0.1/50V
VAA2
R170
0
VCC1.8
R169
22K
VLCD
Q103
PMBT3904
C108
0.1/50V
VCC5V
+
C101
100uF/16V
C107
0.1/50V
CN101
4500-06
1
2
3
4
5
6
VLCD
R105
4K7
R157
4K7
R174
9.1R/2W
VCC5V
CCFL_ENABLE
VAA1
Q101 AP2301N
G
DS
R106
10K
VCC3.3
VCC5V
U101
FS8860-18PJ
3
1
2
VIN
ADJ
VOUT
C110
0.1/50V
DIMMER1
U102
FS8860-33PJ
3
1
2
VIN
ADJ
VOUT
+
C109
100uF/16V
VCC5V
PANEL_ENABLE
VAA1
C113
1u/16V
+
C103
100uF/16V
C111
0.1/50V
VAA4
Q107
PMBT3904
From Power &
Inverter
ON/OFF
+
C105
100uF/16V/NC
R101
10K
C104
0.1/50V
VAA4
VAA3
C114
0.1/50V
BRIGHTNESS
R103
4K7
R104
4K7
BRIGHTNESS
Model
Title
Date Rev:
ViewSonic Corporation
DC INPUT
Page 57
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
54
C165
NC
U103
AT24C02N-10SI
1
2
3
4 5
6
7
8
A0
A1
A2
GND SDA
SCL
WP
VCC
C116 47n/25V
TVS106
5V6
VCC5V
TVS101
BAV99
GIN
C124
0.1/50V
PC5V_VGA
VGA_R
C117 47n/25V
R109 1K
VCC5V
R123 47
D103
SN4148
VGA_B
TVS103
BAV99
HSYNC
C119
33p/50V
R118/NC 470
TVS104
5V6
SOG
R120
2K2
VSI
R124 10K
C122 47n/25V
C166
NC
C115 47n/25V
D104
SN4148
R121 47
R110 100
R165 0
GNDR
C167
NC
R113
75 1%
TVS105
5V6
R114
10K
PC5V_VGA
R107 100
R108 1K
CN102
DZ11AA1-HW6
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
1617
GNDG
R116 22
R115 22
R168 0
R119
2K2
C120
220p/50V
DDC_SCL_VGA
VCC5V
R112
75 1%
R122 47
R127 100
DDC_SDA_VGA
TVS102
BAV99
DET_VGA
R166 0
RIN
DDC_SCL_VGA
R111
75 1%
R167 0
C123 47n/25V
GNDB
HSI
C121 47n/25V
R117 22
DDC_SDA_VGA
VSYNC
TVS107
5V6
NC/C118 1000P/50V
R126 100
DDC_SCL_VGA
BIN
HPD_VGA
R125 10K
DDC_SDA_VGA
VGA_G
Model
Title
Date Rev:
ViewSonic Corporation
VGA_INPUT
Page 58
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
55
C145
0.1/50V
VDPLL
C139
0.1/50V
AD3
VSYNC
VDPLL
C127 0.1/50V
C135
0.1/50V
C143
0.1/50V
SCL/RDZ
C172
0.1/50V
PB9
PA4
R129 4K7
R162 1K
R128 390 1%
PB4
VDVI
SOG
FB104
BEAD60OHM
C131
0.1/50V
GNDR
RIN
VCC1.8
C132
0.1/50V
C134
10u/16V
X102
14.318MHz
VAD
GIN
PA9
C140
10u/16V
VCC1.8
AD2
HSYNC
PB[0..9]
SDA/WRZ
VPLL
U104
TSU16AK
63
60
61
58
62
59
57
37
38
40
41
43
44
46
47
49
50
52
66
67
72
73
74
107
553545351
11218494104
114
126188797117
395636254
4210208595
115
1271986
96
105
116
33
34
108
109
110
111
112
113
118
119
120
121
122
123
124
125
128
1
29
28
30
31
53
65
64
48
106
103
102
68
77
78
6
69
70
71
32
RIN0
GIN0
SOGIN0
BIN0
RIN0M
GIN0M
BIN0M
HSYNC0
VSYNC0
R+
RG+
GB+
BCK+
CKREXT
REFP
REFM
INT
PWM0
PWM1
LVACKM
AVDD
AVDD_MPLL
AVDD_DVI
BYPASS
AVDD_DVI
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDC
VDDC
VDDC
VDDC
AVSS_DVI
AVSS
AVSS_MPLL
AVSS_LPLL
AVSS_PLL
AVSS_DVI
GNDP
GNDP
GNDP
GNDP
GNDP
GNDP
GNDC
GNDC
GNDC
GNDP
GNDC
XIN
XOUT
LVA2P
LVA2M
LVA1P
LVA1M
LVA0P
LVA0M
NC/LVB3P
NC/LVB3M
NC/LVBCKP
NC/LVBCKM
NC/LVB2P
NC/LVB2M
NC/LVB1P
NC/LVB1M
NC/LVB0P
NC/LVB0M
DDC1_CLK/GPO8
DDC1_DAT/GPO7
AD0/GPO6
AD3/GPO5
AVDD_PLL
AVDD
AVSS
AVSS_DVI
LVACKP
LVA3M
LVA3P
AVSS
AD1
AD2
BUS TYPE/NC
CSZ
SDA
SCL
HWRESETZ
VPO
C164 100p/50V
PA2
PB7
PB3
PB5
PB2
R164 1K
FB102
BEAD60OHM
GNDB
C130
0.1/50V
VCC3.3
VPO
VDDPA[0..9]
VAA1
VAA2
AD0
VCC3.3
VAA4
FB106
BEAD60OHM
C174
0.1/50V
GNDG
VDVI
PB8
C162 100p/50V
PA5
C163 100p/50V
PA8
C141
0.1/50V
PA0
HWRESET
Note: U104 pin4,5,7~9,12~17,22~27,75,76,79~83,88~93,98~101 are all NC (open)
C171
0.1/50V
BIN
AD1
PB0
C168
22p/50V
VAD
VPLL
PB[0..9]
FB103
BEAD60OHM
PA1
PA6
C129
0.1/50V
C128
10u/16V
C170
0.1/50V
C126
22p/50V
VDVI
C136
0.1/50V
C133
0.1/50V
VAA4
PA[0..9]
PA7
DIMMER1
VAA2
VAA1
PB6
C142
10u/16V
C173
0.1/50V
VCC3.3
C125
1u/16V
FB105
BEAD60OHM
C138
10u/16V
C137
0.1/50V
CSZ/ALE
INT
PB1
PA3
VDD
VAA3
R163 1K
FB107
BEAD60OHM
VAA3
C144
10u/16V
Model
Title
Date Rev:
ViewSonic Corporation
SCALER
Page 59
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
56
RXE3-
RXE2+
RXE1-
VLCD
PB[0..9]
RXE0+
PA6
PB2
PB3
PB9
RXO0+
RXE0-
RXE2+
PB7
PB4
PB8
RXEC-
RXO1-
PB0
RXO0-
RXO1-
RXO2+
RXO1+
RXE2-
RXO3-
RXO3+
PA5
PA[0..9]
PB6
RXEC+
RXE2-
RXOC+RXOC-
RXEC-
RXO2-
RXEC+
RXE0+
PA9
RXOC+
VLCD
RXE1-
VLCD
RXO2+
PB1
RXO2-
RXO3+
RXE1+
RXOC-
RXO0-
RXE1+
RXO0+
RXE3-
PA0
PA1
PA3
RXE0-
RXO1+
CN104
DUPON2.0mm/NC
12
34
56
78
910
1112
1314
1516
1718
1920
2122
2324
PA7
RXO3-
RXE3+
RXE3+
PB5
CN103
AL2309-A0G1Z
1
2
3
4
6
8
10
12
14
16
18
20
22
24
26
28
30
7
9
11
13
15
17
19
21
23
25
27
29
5
PA8
PA2
PA4
Model
Title
Date Rev:
ViewSonic Corporation
PANEL INTERFACE
Page 60
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
57
R131 0
U106
24C16
1
2
3
4 5
6
7
8
A0
A1
A2
GND SDA
SCL
WP
VCC
KEY_SELECT/AUTO
TO KEY PAD
R145
220
RP102
10K
8 1
7 2
6 3
5 4
C159
1000P/50V
Q104
PMBT3906
R152
100
C156
1000P/50V
C160
1000P/50V
INT
R156
10K
VCPU
KEY_POWER
R142
220
Q105
PMBT3906
AD3
VCPU R148 1K
R133 10K
RP104
10K
8 1
7 2
6 3
5 4
VCPU
AD1
CN106
2x4PIN
8
1
3
5
2
7
4
6
C154
12p/50V
C148
10u/16V
LED_GREEN
LED_ORANGE
R147 1K
DET_VGA
AD2
RP103
10K
817263
54
R137
10K
R138
10K
KEY_DOWN
ISP for Standard
8051
C149
0.1/50V
VCPU
LED_ORANGE
R144
4K7
U105
Winbond W78E65P
1
2
3
4
5
6
7
20
21
22
24
25
26
27
28
29
303235
36
37
38
39
40
11
13
14
16
17
41
42
43
441031
15
18
12
19
8
9
23
33
34
P4.2
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
X2
X1
VSS
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
PSEN
EA
P0.7
P0.6
P0.5
P0.4
P0.3
P3.0/RXD
P3.1/TXD
P3.2/INT0
P3.4/T0
P3.5/T1
P0.2
P0.1
P0.0
VDD
RST
P2.7
P3.3/INT1
P3.6/WR
P4.3/INT2
P3.7
P1.6/PWM3
P1.7/PWM4
P4.0
ALE
P4.1
R146 1K
CCFL_ENABLE
R134 10K
C155
12p/50V
R140 100
SCL/RDZ
R149 1K
AD0
DDC_SDA_VGA
PANEL_ENABLE
KEY_MENU/EXIT
R141 100
R139
10K
LED_GREEN
D102
SN4148
RP101
10K
8 1
7 2
6 3
5 4
C153
NC/10u/16V
VCPU
KEY_UP
R143
4K7
R150 1K
HWRESET
C150
10u/16V
FB108
BEAD60OHM
SDA/WRZ
VCPU
DDC_SCL_VGA
R158
51
R155
10K
R132 10K
VCPU
R159
220
VCC5V
C158
1000P/50V
R153
100
C157
1000P/50V
C151
0.1/50V
CSZ/ALE
X101
22.1184MHz
Model
Title
Date Rev:
ViewSonic Corporation
MCU
Page 61
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
58
SW105
SW TACT
SW103
SW TACT
ORANGE
KEY_POWER
UPPOWER
CN106
2x4PIN
1
2
4
5
6
7
8
3
KEY_MENU/EXIT
LED101
GREEN
KEY_SELECT/AUTO
LED_GREEN
MENU/1
SW101
SW TACT
KEY_DOWN
DOWN
LED_ORANGE
KEY_UP
SW104
SW TACT
AUTO/2
SW102
SW TACT
Model
Title
Date Rev:
ViewSonic Corporation
KEYPAD
Page 62
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
59
11. PCB Layout Diagrams
Main board Top layout
Page 63
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
60
Main board bottom Layout
Page 64
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
61
POWER board
Page 65
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
62
Page 66
ViewSonic Corporation Confidential - Do Not Copy VA702-2_VA721-3_VA721b-3
63
Reader’s Response*
Dear Readers:
Thank you in advance for your feedback on our Service Manual, which allows continuous improvement
of our products. We would appreciate your completion of the Assessment Matrix below, for return to
ViewSonic Corporation.
Assessment
A. What do you think about the content of this Service Manual?
Unit Excellent Good Fair Bad
1. Precautions and Safety Notices
2. Specification
3. Front Panel Function Control Description
4. Circuit Description
5. Adjustment Procedure
6. Troubleshooting Flow Chart
7. Recommended Spare Parts List
8. Exploded Diagram and Exploded Parts List
9. Block Diagrams
10. Schematic Diagrams
11.PCB Layout Diagrams
B. Are you satisfied with this Service Manual?
Item Excellent Good Fair Bad
1. Service Manual Content
2. Service Manual Layout
3. The form and listing
C. Do you have any other opinions or suggestions regarding this service manual?
Reader’s basic dada:
Name:
Title:
Company:
Add:
Tel:
Fax:
E-mail:
After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile
1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes
(marc.maupin@viewsonic.com)
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