ViewSonic Q19wb-3, VS11578 Service Manual

ViewSonic Q19wb-3

Model No. VS11578

19” Color TFT LCD Display

(Q19wb-3_SM Rev. 1a Oct. 2006)

ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - [phone]

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 10/31/2006 Initial Release Jamie Chang

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TABLE OF CONTENTS

1. Precautions and Safety Notices 1

2. Specification 4

3. Front Panel Function Control Description 10

4. Circuit Description 12

5. Adjustment Procedure 20

6. Troubleshooting Flow Chart 42

7. Recommended Spare Parts List 46

8. Exploded Diagram and Exploded Parts List 48

9. Block Diagram 52

10. Schematic Diagrams 53

11. PCB Layout Diagrams 61

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1. Precautions and Safety Notices

1. Precaution & Safety Notice

1. Caution :

No modification of any circuit should be attempted . Service work should only be performed after you are thoroughly
familiar with all of the following safety checks and servicing guide line

2. Safety Check :

Care should be taken while servicing this LCD display. Because of the high voltage used in the inverter circuit. These
voltage are exposed in such areas as the associated transformer circuits .

3. POWER SUPPLY REQUIREMENTS
The external power converter for this display utilizes AC and DC cords , AC cord is detachable , but DC cord is

permanently attached . Any attempt to replace another adapter could result in serious problem on the display .

4. LEAKAGE CURRENT HOT CHECK
4-1 Plug the AC cord directly into the AC outlet. Do not use an isolation transformer during this check.
4-2 Connect a 1500 ohm , 10 watt resistor , paralleled by a 0.15uF capacitor between each metallic part and a good earth

ground

4-3 Use an AC voltmeter with 1000 ohm / volt or more sensitivity and measure the AC voltage across the combination

1500 ohm resistor and 0.15uF capacito r.
4-4 Move the resistor connection to each exposed metallic part and measure the voltage.
4-5 Reverse the polarity of the AC plug in the AC outlet and repeat the above measurement.
4-6 Voltage measured must not exceed 1.5 volt RMS, from any exposed metallic part to the ground. A leakage current

tester may be used in the above hot check, in which case any circuit measured must not exceed 1.0 milliamp. In the

case of a measurement exceeding the 1.0 milliamp value, a rework is required to eliminate the chance of a shock

hazard .

To Metal Parts

V

AC VOLTMETER

1500 10W

0.15u
.

Earth Ground

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Q19wb-3 series handling Notice

Correct Method Incorrect method

Correct Method Incorrect method

Correct Method Incorrect method

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Correct Method Incorrect method

Correct Method Incorrect method

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2. Specification

1. GENERAL REQUIREMENTS

General Specification

Test Resolution & Frequency 1440x900 @ 60Hz
Test Image Size Full Size

Contrast and Brightness Controls

Factory Default:
Contrast = 80%, Brightness = 100%

2. SIGNAL INTERFACE

Video Interface

Input Connector (refer the appendix A) D-Sub = DB-15 (Analog)
Default Input Connector D-Sub

Video Cable Strain Relief

Equal to twice the weight of the monitor for
five minutes

Video Cable Connector DB-15 Pin out Compliant DDC1/2B

Video RGB (Analog)

Video Signals

Separate Sync / SOG / Composite
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 TTL
DDC/CI N/A
Sync Compatibility Separate Sync / Composite Sync / SOG

Video Compatibility

Shall be compatible with all PC type

computers, Macintosh computers, and after

market video cards

Resolution Compatibility

640 x 350, 640 x 400, 640 x 480, 720 x 400,

800 x 600, 832 x 624, 1024 x 768,

1152 x 864, 1152 x 870,1280 x 1024,

1440 x 900,
Exclusions Not compatible with interlaced video

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3. Power

Internal Power Supply Delta EADP-45AF BF
Input Volt age 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 5.0 A typical at 12.0 VDC
Leakage Current 0.75mA (Max) at 264VAC / 50Hz
Efficiency 75 % (min.)
Fuse Internal and not user replaceable
Power Dissipation 45 Watts (typ)
Max Input AC Current 1.2 Arms @ 90VAC, 0.7 Arms @264VAC

Inrush Current (Cold Start)

60 A (max) @ 115VAC
90A(Max)264VAC

Power Supply Cold Start

Shall start and function properly when under full load, with all
combinations of input voltage, input frequency, and operating
temperature.

Power Supply Transient Immunity

Shall be able to withstand an ANSI/IEEE C62.41-1980 6000V 200
ampere ring wave transient test with no damage.

Power Supply Line Surge Immunity

Shall be able to withstand 1.5 times nominal
line voltage for one cycle with no damage.

Power Supply Missing Cycle Immunity

Shall be able to function properly,without
reset or visible screen artifacts, when ½
cycle of AC power is randomly missing at
nominal input.

Power Supply Acoustics

The power supply shall not produce audible noise that would be
detectable by the user.
Audible shall defined to be in compliance with ISO 7779 (DIN
EN27779:1991) Noise
measurements of machines acoustics. Power
Switch noise shall not be considered.

Power Saving Operation(Method) VESA DPMS Signaling

On Mode < 40 W (Typ ) / 36 W (max)

Power Consumption

Active Off < 1 W

Recovery Time On Mode = N/A, Active Off < 5 sec

4. ELECTRICAL REQUIREMENTS

Horizontal /Vertical Frequency
Horizontal Frequency

31 – 81 kHz

Vertical Refresh Rate

50 – 75 Hz.

Maximum Pixel Clock 140 MHz
Sync Polarity Independent of sync polarity.

Timing Table

Analog Item Timing

Separated

Composite

SOG

Digital - TMDS

Remark

1 640 x 350 @ 70 Hz, 31.5 KHz 　 　 　

2 640 x 400 @ 70 Hz, 31.5 KHz 　 　 　

For Separated Sync, Switch
640x400@70Hz and 720x400@70Hz by
[AUTO]+[MENU]
short cut key (primary = 720x400@70Hz)

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3 640 x 480 @ 60 Hz, 31.5 KHz 　 　 　
4 640 x 480 @ 67 Hz, 35 KHz 　 　 　
5 640 x 480 @ 72 Hz, 37.9 KHz 　 　 　
6 640 x 480 @ 75 Hz, 37.5 KHz 　 　 　
7 720 x 400 @ 70 Hz, 31.5 KHz 　 　 　
8 800 x 600 @ 56 Hz, 35.1 KHz 　 　 　
9 800 x 600 @ 60 Hz, 37.9 KHz 　 　 　
10 800 x 600 @ 72 Hz, 48.1 KHz 　 　 　
1 1 800 x 600 @ 75 Hz, 49.6 KHz 　 　 　
12 832 x 624 @ 75 Hz, 49.7 KHz 　 　 　
13 1024 x 768 @ 60 Hz, 48.4 KHz 　 　 　
14 1024 x 768 @ 70 Hz, 56.5 KHz 　 　 　
15 1024 x 768 @ 72 Hz, 58.1 KHz 　 　 　
16 1024 x 768 @ 75 Hz, 60 KHz 　 　 　
17 1152 x 864 @ 75 Hz, 67.5 KHz 　 　 　
18 1152 x 870 @ 75 Hz, 68.7 KHz 　 　 　
19 1280 x 1024 @ 60 Hz, 64 KHz 　 　 　
20 1280 x 1024 @ 75 Hz, 80 KHz 　 　 　
21 1280 x 960 @ 60 Hz 59.7 KHz 　
22 1440 x 900 @ 60 Hz, 55.9 KHz 　 　 　
23 1440 x 900 @ 75 Hz, 70 KHz

Changing Modes

● Maximum Mode Change Blank Time for image stability : 3 seconds (Max), excluding “Auto Adjust” time

● Under DOS mode (640 x 350, 720 x 400 & 640 x 400), it should recall factory setting when execute “Auto

Adjust”

● The monitor needs to do “Auto Adjust” the first time a new mode is detected
(see section “0-Touch™ Function Actions”)

● While running Change Mode, Auto Adjust or Memory Recall, the image shall blank

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5. LCD Panel

1st Source Panel

Model number Hannstar HSD190MGW1-A00
Type Active Matrix TFT
Active Size 19.1"w
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.2835mm x 0.2835mm
Glass Treatment Anti-Glare
# of Backlights 4 CCFL
Backlight Life 50000 Hrs (Min)@6.5mA

300 cd/m2 (Typ after 30 minute warm up) Luminance (Center) –

CT = 6500K,
Contrast/ Brightness = Max

240 cd/m2 (Min after 30 minute warm up)

Brightness Uniformity 75% (min)
Contrast Ratio 700 :1 (Typ)
450 : 1 (Min)
Color Depth 16.2 million colors (6-bit+FRC panel)
Horizontal Viewing Angle 150 degrees (Typ) @ CR>10
130 degrees (Min) @ CR>10
Vertical Viewing Angle 140 degrees (Typ) @ CR>10
120 degrees (Min) @ CR>10
Response Time

On/Off

10%-90% @ Ta=25°C Typical = 5 ms (Tr = 1.5 ms; Tf = 3.5 ms)
Maximun = 10 ms (Tr = 3ms; Tf = 7ms)
Mercury 3.5 mg per lamp
Panel Defects Please see Panel Quality Specifications.

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2nd Source Panel

Model number Hannstar HSD190MGW1-A02
Type Active Matrix TFT
Active Size 19.1"w
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.2835mm x 0.2835mm
Glass Treatment Anti-Glare
# of Backlights 4 CCFL
Backlight Life 50000 Hrs (Min)@6.5mA

300 cd/m2 (Typ after 30 minute warm up) Luminance (Center) –

CT = 6500K,
Contrast/ Brightness = Max

240 cd/m2 (Min after 30 minute warm up)

Brightness Uniformity 75% (min)
Contrast Ratio 700 :1 (Typ)
450 : 1 (Min)
Color Depth 16.2 million colors (6-bit+FRC panel)
Horizontal Viewing Angle 150 degrees (Typ) @ CR>10
130 degrees (Min) @ CR>10
Vertical Viewing Angle 140 degrees (Typ) @ CR>10
120 degrees (Min) @ CR>10
Response Time

On/Off

10%-90% @ Ta=25°C Typical = 5 ms (Tr = 1.5 ms; Tf = 3.5 ms)
Maximun = 10 ms (Tr = 3ms; Tf = 7ms)
Mercury 3.5 mg per lamp
Panel Defects Please see Panel Quality Specifications.

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6. MECHANICAL.

Dimension (Desktop)

Width 446mm (17.6")
Height (Height adjust to the bottom) 364mm (14.3")
Depth 213.6mm (8.4")
Monitor Weight 4.4Kg (9.7 lbs)
*Refer to Figure 1

Dimension (Head Only / Wall Mount)

Width 446mm (17.6")
Height 292mm (11.5")
Depth 66.6mm (2.6")
Monitor Weight 4.0 Kg (8.8 lbs)
*Refer to Figure 1

Ergonomics

Tilt Up ≧ 20º
Tilt Down From 0º down to -3º ~ -5º

7. ENVIRONMENTAL

z Operating Temperature : 0°C to +40°C
z Storage Temperature : -20°C to +60°C
z Operating Relative Humidity : 20% to 90% RH Non-Condensing
z Storage Relative Humidity : 5% to 90% RH Non-Condensing
z Operating Altitude : 0 to +3,000 meters
z Storage Altitude : 0 to +12,000 meters

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3. Front Panel Function Control Description

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Main Menu Controls

Adjust the menu items shown below by using the left and right buttons.

A. Brightness adjusts the lamps current to control the screen brightness.
B. Contrast adjusts the difference between the image background (black level) and the foreground (white level).
C. Image adjust controls are explained below:

Auto Adjustment automatically sizes, centers, clock ,phase and fine tunes the video signal to eliminate waviness and
distortion. Press the [menu] button to obtain a sharper image.
H./V. Position adjusts horizontal and vertical position of the screen image. You can toggle between Horizontal and
Vertical by pressing button [menu]. Horizontal moves the screen image to the left or to the right. Vertical moves the screen
image up and down.
Clock adjust Sets up the internal clock. Larger values make the displayed image appear wider; smaller values make it
appear compressed.

Phase adjust Adjusts the internal clock’s time lag in order to optimize the screen image.
Sharpness adjust

the clarity and focus of the screen image.

D. Color Adjust

provides several color options: preset color temperatures and Custom User Color which allows you to adjust

red (R), green (G), and blue (B). The factory setting for this product is 6500K (6500° Kelvin).

9300K — Adds blue to the screen image for cooler white (used in most office settings with fluorescent lighting).
5400K — Adds red to the screen image for warmer white and richer red.
Custom User Color — Individual adjustments for red, green, and blue.
1 To select color (R, G or B) press button [menu].
2 To adjust selected color, press [<] or [>]

.

3 When you are finished making all color adjustments, press button [Auto] twice.

E. OSD CONTROL controls are explained below:

H/V.OSD Position allows you to move the on-screen display menus and control screens.

OSD Timeout sets the length of time an on-screen display screen is displayed. For example, with a“15 second” setting,

if a control is not pushed within 15 seconds, the display OSD disappears.

F. Other Adjust

controls are explained below:

Language allows you to choose the language used in the menus and control screens.

Speaker volume allows you to increase or decrease the volume

.

Information there is an optional OSD window that displays the newly adjusted screen resolution settings.

G. Reset returns adjustments to the o riginal factory settings if the display is op erating in a factory Preset Timing Mode listed

in this user guide.

H. Exit allows you exit the OSD menu, press button [Menu].

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4. Circuit Description

1. Outline

1.1 Auto button, left arrow button, right arrow button, Menu button, Power button on the front panel.

1.2 D-sub 15pin connector, audio line-in receptacle, and AC-IN are located on the back side of the cabinet.

1.3 OSD menu includes the following function;
(1)Brightness& Contrast adjusts

(2) Image Adjust
(3) Color Adjust
(4) OSD Control
(5) Other Adjust
(6) Reset
(7) Exit

1.4 Speaker Volume & the control bar is adjustable by [<], [>] button. Mute or Speaker [MENU] key when speaker

volume OSD appear

Audio volume can be controlled with right arrow button when Audio Adjust menu is acti ve.

2. CONNECTORS

2.1 AC inlet : CEE7-7 typed connector

2.2 Audio : Line-in,

AJ1

PHONE JACK 5P (ZD005D100)

2

3

4

5

1

Line-in receptacle
(Line-in receptacle is green)

2.3 Video signal connector for analog input: 15P Mini D-Sub

CN1

VGA

1
6
2
7
3
8
4
9
5

11
12
13
14
15

10

1617

PIN MNEMONI SIGNAL

1 RV Red Video

2 GV Green Video

3 BV Blue Video

4 NC None

5 GND Ground(DDC return)

6 RG Red GND

7 GG Green GND

8 BG Blue GND

9 +5V +5V (for DDC)

10 SG Sync GND

11 NC None

12 SDA DDC Data

13 HS Horizontal Sync

14 VS Vertical Sync

15 SCL DDC Clock

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3. ELECTRICAL SPECIFICATIONS

3.1 Standard Testing conditions

Display Area 408.24(H) x 255.15(V) mm
Video Signal 0.7Vpp
Contrast Default
Brightness Default
Ambient 25 +/- 5 °C
Input AC230V+/-10%@50HZ
Warming up > 30 min
Display 1400 x 900@60HZ

3.2 POWER

3.2.1 Power supply
Input voltage 90~264Vac

Power frequency 47~63Hz

<1.2Arms@90Vac Input current

<0.7 Arms @264Vac
Inrush current 90A(Max) @ 264Vac(cold start)
Power consumption 40W(MAX)

3.2.2 Power Management

State Power Indicator
On <40Watts Green
Standby < 1Watts Amber
off <1Watts Dark

3.3 Acceptable timing

If the timing is within following specification, this LCD display can automatically function with a certain position.

Horizontal: Sync frequency: 31~81 KHz (Analog: 165MHz)
Vertical: Sync frequency: 50~75Hz

3.4 Signal level and input impedance

3.4.1 Video Signal level: 0.7Vp-p Video signal.

3.4.2 Sync Signal level
H/V Separate: TTL level

3.4.3 Input impedance

Analog video input: 75 ohm
Sync input: > 1 k ohm
Audio input: 10K ohm

4. SIGNAL CABLE: Signal cable with Mini D-Sub 15P connectors at both ends. Length: 1.8 meter.

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5. EDID data

5.1. Analog EDID: Analog EDID is stored in U6

HSD panel:
VIEWSONIC CORPORATION

EDID Version # 1, Revision # 3
DDCTest For: ViewSonic Q19wb-3
______________________________________________________________________
EDID Block 0, Bytes 0-127
128 BYTES OF EDID CODE:
0 1 2 3 4 5 6 7 8 9
________________________________________
0 | 00 FF FF FF FF FF FF 00 5A 63
10 | 1F 3E 01 01 01 01 01 10 01 03
20 | 08 29 1A 78 2E 9B B6 A4 53 4B
30 | 9D 24 14 4F 54 BF EF 80 95 00
40 | 95 0F 81 80 81 40 71 4F 01 01
50 | 01 01 01 01 9A 29 A0 D0 51 84
60 | 22 30 50 98 36 00 98 FF 10 00
70 | 00 1C 00 00 00 FF 00 51 48 5A
80 | 30 36 30 31 30 30 30 30 31 0A
90 | 00 00 00 FD 00 38 4B 1F 50 0E
100 | 00 0A 20 20 20 20 20 20 00 00
110 | 00 FC 00 51 31 39 77 62 2D 33
120 | 0A 20 20 20 20 20 00 98
______________________________________________________________________
(08-09) ID Manufacturer Name ________________ = VSC
(11-10) Product ID Code _____________________ = 3E1F
(12-15) Last 5 Digits of Serial Number ______ = Not Used
(16) Week of Manufacture _________________ = 01
(17) Year of Manufacture _________________ = 2006
(10-17) Complete Serial Number ______________ = See Descriptor Block
(18) EDID Version Number _________________ = 1
(19) EDID Revision Number ________________ = 3
(20) VIDEO INPUT DEFINITION:
Analog Signal

0.700, 0.300 (1.000 Vp-p)
Separate Syncs
(21) Maximum Horizontal Image Size ________________ = 410 mm
(22) Maximum Vertical Image Size __________________ = 260 mm
(23) Display Gamma ________________________________ = 2.20
(24) Power Management and Supported Feature(s):

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Active Off/Very Low Power, Standard Default Color Space,
Preferred Timing Mode
Display Type = R/G/B Color
(25-34) CHROMA INFO:
Red X - 0.643 Green X - 0.295 Blue X - 0.143 White X - 0.310
Red Y - 0.325 Green Y - 0.616 Blue Y - 0.081 White Y - 0.330
(35) ESTABLISHED TIMING I:
720 X 400 @ 70Hz (IBM,VGA)
640 X 480 @ 60Hz (IBM,VGA)
640 X 480 @ 67Hz (Apple,Mac II)
640 X 480 @ 72Hz (VESA)
640 X 480 @ 75Hz (VESA)
800 X 600 @ 56Hz (VESA)
800 X 600 @ 60Hz (VESA)
(36) ESTABLISHED TIMING II:
800 X 600 @ 72Hz (VESA)
800 X 600 @ 75Hz (VESA)
832 X 624 @ 75Hz (Apple,Mac II)
1024 X 768 @ 60Hz (VESA)
1024 X 768 @ 70Hz (VESA)
1024 X 768 @ 75Hz (VESA)
1280 X 1024 @ 75Hz (VESA)
(37) Manufacturer's Reserved Timing:
1152 X 870 @ 75Hz (Apple,Mac II)
(38-53) Standard Timing Identification:
1440 X 900 @60Hz
1440 X 900 @75Hz
1280 X 1024 @60Hz
1280 X 960 @60Hz
1152 X 864 @75Hz
Not Used
Not Used
Not Used
______________________________________________________________________
(54-71) Detailed Timing / Descriptor Block 1:
1440x900 Pixel Clock: 106.50 MHz
______________________________________________________________________
Horizontal Image Size: 408 mm Vertical Image Size: 255 mm
Refreshed Mode: Non-Interlaced Normal Display - No Stereo

Horizontal:
Active Time: 1440 pixels Blanking Time: 464 pixels

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Sync Offset: 80 pixels Sync Pulse Width: 152 pixels
Border: 0 pixels Frequency: 55.93 KHz

Vertical:
Active Time: 900 lines Blanking Time: 34 lines
Sync Offset: 3 lines Sync Pulse Width: 6 lines
Border: 0 lines Frequency: 59.89 Hz

Digital Separate, Horizontal Polarity (-) Vertical Polarity (+)

______________________________________________________________________
(72-89) Detailed Timing / Descriptor Block 2:

Monitor Serial Number:
QHZ060100001
______________________________________________________________________
(90-107) Detailed Timing / Descriptor Block 3:

Monitor Range Limits:
Min Vertical Freq - 56 Hz
Max Vertical Freq - 75 Hz
Min Horiz. Freq - 31 KHz
Max Horiz. Freq - 80 KHz
Pixel Clock - 140 MHz
Secondary GTF - Not Supported
______________________________________________________________________
(108-125) Detailed Timing / Descriptor Block 4:

Monitor Name:
Q19wb-3
(126) No Extension EDID Block(s)
(127) CheckSum OK

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6. THEORY OF OPERATION

This section describes the function of the LCD monitor per functional block.19” monitor includes MB
board (including audio board function inside), inverter board, (including adapter function inside) and button board.

6.1 MB BOARD

The MB board is a two-layer, sin gle-landed design with ground and ground planes provided.
The VGA cable is a sig nal cable that contains video signal, sync signal and DDC signal from PC VGA adapter
This system board consists of 3 functional areas : flat panel controller, Micro controller and audio controller.

6.1.1 Flat panel controller…… TSUM16AK-LF-1 (U4)

The heart of the system board is Mstar TSUM16AK-L F-1. The TSUM16AK-LF-1 is a graphics processing IC for
LCD monitor. It provides all key IC cont rol functions required for LCD panel. On-chip functions include a
high-speed triple-ADC , PLL, high sacling engine Micro processor and OSD controller ,manages other devices in
the system such as the keypad, the backlight, LED and audio general purpose input/output pins.

a) Clock Generation :

Crystal Input Clock (XTALI and XTAL). This is the input pair to an internal crystal oscillator andco rresponding

logic. A 14.318 MHz crystal is recommended.

b) Hardware Reset ( Pin 19 )

Hardware Reset signal is generated by TSUM16AK-LF-1 (U4/Pin 19).It assert a reset signal at least 1 ms.

Pin number Pin name Pin function

23 GPIO_P00/SAR1 Key-Menu

24 GPIO_P01/SAR2 Key-Sel/Auto

25 GPIO_P02/SAR3 Key-Power on/off

26 GPIO_P03 Key-Right

27 GPIO_P06 Key-Left

28 GPIO_P07 Key-Down(NC)

29 PWM0/GPIO_P26 Key-Up(NC)

30 GPIO_P13 LED-Green

31 GPIO_P14 LED-Orange

35 GPIO_P16/PWM2 Audio-MUTE(NC)

69 GPIO_P15/PWM0 Audio-Stby-Power

78 PWM2/GPIO_P24 Audio-Volume

21 PWM1/GPIO_P25 Backlight-adi

36 DDCD_SDA SDA-VGA (Debug)

37 DDCD_SCL SCL-VGA (Debug)

65 DDCA_SDA/RS232_TX SDA(Debug)

66 DDCA_SCL/RS232_RX SDA(Debug)

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c) Analog to Digital Converter

The TSUM16AK-LF-1 chip has three ADC's (analog-to-digital converters), one for each color (red, green
and blue) . The analog RGB signals are connected to TSUM16AK-LF-1 as described below

Pin Name Pin Number
Red + 59
Red - 58
Green + 56
Green - 55
Blue + 54
Blue - 53

d) OSD :

The TSUM16AK-LF-1 has a fully programmable, high-quality OSD controller. The on-chip static RAM(256
different fonts at size of 12X18) stores the cell map and the cell definitions.

e) Panel Power Sequencing (VDDCTRL_2, on_BACKLIGHT) ( Pin 74~20)

The TSUM16AK-LF-1 has two dedicated output s VDDCTRL_2 and on_backlight( Pin74 and Pin20) to
control LCD power sequencing once data and control signals a re stable.

f) Inverter Brightness control (PWM1) (Pin 21)

The TSUM16AK-LF-1 has one PWM output PWM1 (Pin21) to control Inverter Brightness
Range.

g) Panel LVDS interface (Pin105~114, Pin118~127)

The TSUM16AK-LF-1 driver interface is highly programmable. It supports LVDS port for panel.

6.1.2 Audio controller TDA7496L (AU1)

The TDA7496L is a 2 channel audio power amplifier capable of delivering 2W of continuous av erage power
to an 8 ohms with less than 3% (THD) from a 12 V power supply. TDA7496L can directly drive 8 ohms
speaker , Features of the TDA7496L include linear volume(pin6), Stand-by(pin11) and mute(pin12)
functions.
Audio line-in are feed into pin 4,9 of the TDA7496L. The output power is controlled by the DC voltage of
AQ1.

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6.2 Power Module

6.3
The power module includes a Inverter and Power regulator. The electrical specification described as followings:

Input Operation Input Voltage Range 90~260 Vac,47 ~63Hz

Rated Input Voltage 100~240 Vac,50/60Hz
Max Input AC Current < 2A
Brightness Voltage(Vadj) 0.3Vdc(Max) ~ 3.0Vdc(Min)
On/Off Voltage High(3.3Vdc)/Low(0Vdc)
Output Static Output Characteristics 12V/2.1A Output : 11.4Vdc ~ 15.1Vdc

5V/3.0A Output : 4.94Vdc ~ 5.46Vdc

6.2.2 Inverter output characteristics.

Rated Output Strike-on Voltage 1800~2000Vrms
Rated Output Voltage 680Vrms @ 6.5mArms
Rated Output Frequency 40~80KHz

OUTPUT

Rated Output Current 6~7mArms

6.2.4 Power module of connector definition ;

CN101 ; Pin 1 & 2 ----> Vdc Output ( 12V +/- 5%)

Pin 3 & 4 -------> GND
Pin 5 & 6 -------> Vdc Output ( 5V +/- 5%)
Pin 7 -------------> Brightness Control Voltage
Pin 8 -------------> On /Off ( "High" set Lamp on )

CN202 ~ CN205 ; Pin 1 ---------> HV ( High Voltage for CCFL )

Pin 2 ---------> Return ( Low Voltage for CCFL )

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5. Adjustment Procedure

1. Function test

(1) Test equipment

Color video signal and pattern generator (or PC with SXGV resolution)

(2) Test condition

Before function testing and alignment, the unit must warm up for at least 30 minutes under the following
conditions:

1. Room temperature

2. With full-white screen , RGB , black pattern

3. with cycled display modes.

2. Test display modes

Item Timing Analog Digital

1 640 x 350 @ 70Hz, 31.5kHz Yes No
2 640 x 400 @ 70Hz, 31.5kHz Yes No
3 640 x 480 @ 60Hz, 31.5kHz Yes No
4 640 x 480 @ 67Hz, 35.0kHz Yes No
5 640 x 480 @ 72Hz, 37.9kHz Yes No
6 640 x 480 @ 75Hz, 37.5kHz Yes No
7 720 x 400 @ 70Hz, 31.5kHz Yes No
8 800 x 600 @ 56Hz, 35.1kHz Yes No

9 800 x 600 @ 60Hz, 37.9kHz Yes No
10 800 x 600 @ 75Hz, 46.9kHz Yes No
11 800 x 600 @ 72Hz, 48.1kHz Yes No
12 832 x 624 @ 75Hz, 49.7kHz Yes No
13 1024 x 768 @ 60Hz, 48.4kHz Yes No
14 1024 x 768 @ 70Hz, 56.5kHz Yes No
15 1024 x 768 @ 72Hz, 58.1kHz Yes No
16 1024 x 768 @ 75Hz, 60.0kHz Yes No
17 1152 x 864 @ 75Hz, 67.5kHz Yes No
18 1152 x 870 @ 75Hz, 68.7kHz Yes No
19 1280 x 1024 @ 60Hz, 63.4kHz Yes No
20 1280x 1024 @ 75Hz, 79.97kHz Yes No
21 1440x 900 @ 60Hz, 59.9kHz Yes No
22 1440x 900 @ 75Hz, 75kHz Yes No

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3. Test pattern

Item Test condition Pattern Specification Remark

1 Frequency & performance Cross-hatch pattern No noise is allowed, all colors must be clear Pattern 1
2 Monitor saturation 16-gray scale pattern 3 to 4 levels must be saturated when brightness and

contrast are set to 100%

Pattern 2

3 RGB color performance RGB color Check the color temperature of RGB signal color Pattern 3,

4, 5

4 Sub-pixel defect RGB color Check the sub-pixel defect Pattern 3,

4 , 5

5 Full white Full white Check the brightness and contrast ratio, and check

for bright pixel defects

Pattern 6

6 Full black Full black Pattern 7

7. 5-cycle pattern 5-cycle pattern Check the BU Pattern 8

8. 1-dot pattern 1-dot pattern Check the flicker Pattern 9

Pattern 1 Pattern2

Pattern 3 Pattern4

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Pattern 5 Pattern6

Pattern 7 Pattern 8

Pattern 9

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OSD Function Menu

A. When in Analog Input Mode

1. Main Menu

Press the [Menu] button to enter the Main Menu:

Press the

[<] button to immediately activate Brightness/Contrast menu. It should be

change to Contrast OSD by push button [<] or[>].

Press the [>] button to immediately activate Speaker Volume & the control

bar is adjustable by [<], [>] button.Mute or Speaker volume can be switched by press

[Menu] key when speaker volume OSD appear

Press the [AUTO] button to exit the Main Menu.

(1) Brightness /Contrast Page:

Press the [Menu] button to enter the Brightness/contrast adjustment page.

Press the

[AUTO] button to exit the page.

Press the

[<]button to highlight the previous item or the [>] button to highlight the next

item.

1) Brightness Item

Press the [Menu]button to enter the brightness adjustment page.

Press the

[>] button to increase the brightness.

Press the

[<] button to decrease the brightness.

Press the

[AUTO] button to exit the page.

2) Contrast Item

Press the [Menu]button to enter the Contrast adjustment page.

Press the

[>] button to increase the contrast.

Press the

[<] button to decrease the contrast.

Press the

[AUTO] button to exit the page.

(2) Image Control Page:

Press the [Menu] button to enter the Image Control Page.

Press the

[AUTO] button to exit the page.

Press the

[<]button to highlight the previous item or the [>] button to highlight the next

item.

1) Auto Adjustment Item

Press the [Menu]button to execute the auto adjustment function.

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Press the [AUTO] button to exit the page.
.

2) H. Position Item

Press the [Menu]button to enter the horizontal postion adjustment page.
Press the

[>] button to shift the image to the right.

Press the

[<] button to shift the image to the left.

Press the

[AUTO] button to exit the page.

3) V. Position Item

Press the [Menu]button to enter the vertical postion adjustment page.
Press the

[>] button to shift the image to the upward.

Press the

[<] button to shift the image to the downward.

Press the

[AUTO] button to exit the page.

4) Clock Item

Press the [Menu]button to enter the clock adjustment page.

Press

[>] & [<]Button to adjust the internal clock. Larger values make

the displayed image appear wider; smaller values make it appear compressed.

Press the

[AUTO] button to exit the page.

5) Phase Item

Press the [Menu] button to enter the phase adjustment page.

Press

[>] & [<] Button to Adjusts the internal clock’s time lag in order to

optimize the screen image.

Press the

[AUTO] button to exit the page.

6) Sharpness Item

Press the [Menu] button to enter the sharpness adjustment page.

Press

[>] Button to increase image sharpness.

Press

[<] Button to decrease image sharpness.

Press the

[AUTO] button to exit the page.

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(3) Color Page:

Press the [Menu] button to enter the color adjustment page.

Press the

[AUTO]button to exit the page.

Press the

[<]button to highlight the previous item or the [>] button to

highlight the next item.

1) 9300k Item

2) 6500K Item

3) 5400K Item

4) SRGB Item

Press the [Menu] button to select the currently highlighted item.

Press the

[AUTO] button to exit the currently highlighted item.

5) User Color Item

Press the [Menu] button to enter the user color page.
Press the

[AUTO] button to exit the page.

Red, Green, Blue Options:

Press the [Menu] button to enter the RGB adjustment page

Press the

[AUTO]button to exit the page.

Press the

[>] button to increase the selected color level.

Press the

[<]button to decrease the selected color level.

(4) OSD Control Page:

Press the [Menu] button to enter the OSD control page.

Press the

[AUTO] button to exit the page.

Press the

[<] button to highlight the previous item or the [>] button to

highlight the next item.

1) H.OSD Position Item

Press the [Menu] button to enter the H.OSD Position adjustment page.

Press

[>] Button to shift the OSD to the right.

Press

[<] Button to shift the OSD to the left.

Press the

[AUTO] button to exit the page.

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2) V.OSD Position Item

Press the [Menu] button to enter the V.OSD Position adjustment page.

Press

[>] Button to shift the image to the upward.

Press

[<] Button to shift the image to the downward.

Press the

[AUTO] button to exit the page.

3) OSD Time Out Item

Press the [Menu] button to enter the OSD time out adjustment page.

Press the

[>] button to increase the OSD time out.

Press the

[<] button to decrease the OSD time out.

Press the

[AUTO] button to exit the page.

(5) Other Page:

Press the [Menu] button to enter the OSD control page.

Press the

[AUTO] button to exit the page.

Press the

[<] button to highlight the previous item or the [>] button to

highlight the next item.

1) Language Item

Press the [Menu] button to enter the language selection page.

Press the

[AUTO] button to exit the page.

Press the

[<] button to highlight the previous item or the [>] button to highlight the

next item.

English, French… Option

Press the [Menu] button to select the language.

2) Speaker Volume Item

Press the [Menu] button to enter the speaker volume adjustment page.

Press

[>] Button to increase the volume.

Press

[<] Button to decrease the volume.

Press the

[AUTO] button to exit the page.

3) Information Item

Press the [Menu] button to enter the Information page.

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Press the [AUTO] button to exit the page.

Press the

[<] button to highlight the previous item or the [>] button to highlight the

next item.

ON,OFF select

Press the [Menu] button to select the ON/OFF.

(6) Reset Page:

Press the [Menu] button to enter the reset page.

Press the

[AUTO] button to exit the page.

Press the

[<] button to highlight the previous item or the [>] button to

highlight the next item.

YES,NO select

Press the [Menu] button to select the YES/NO.

(7) Exit Page:

Press the [Menu]/

[AUTO] button to exit the OSD Menu.

2. Other Menu:

This “shortcut” menu is directly accessible without bringing up the OSD.

(1) Brightness /Contrast Dialog

Press the

[<] button to enter the Brightness /Contrast Dialog.

Press the

[AUTO] button to exit the Brightness /Contrast Dialog.

Press the

[<] button to highlight the previous item or the [>] button to highlight the next

item.
Press the [Menu] button to enter the brightness/contrast adjustment page.

Press the

[>] button to increase the brightness/contrast.

Press the

[<] button to decrease the brightness/contrast.

(2)

Speaker volume/Mute Dialog

Press the

[>] button to enter the Speaker volume/Mute Dialog.

Press the

[AUTO] button to exit the Speaker volume/Mute Dialog.

Press the [Menu] button to switch the

Speaker volume and Mute page.

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Press the [>] button to increase the volume.
Press the

[<] button to decrease the volume.

B. Other Information

When the “No Signal” or “Out of Range” messages appear:

If no input signal is detected, the “No Signal” message will appear in the center of the screen.
If the V-Sync signal rate is greater than than 85Hz or it s resolution is greater than SXGA, the “Out
of Range” message will appear in the center of the screen.

Activating Factory Mode and Burn Mode:

While the device is in standby, press the

[AUTO] button, then press the power button to enter

Factory Mode. While Factory Mode is active, an additional menu page titled “F1”&”F2” will be
accessible. Press the [Menu] button to enter the Factory Menu page, then press the [Menu]
button to enter Burn Mode.

When Installing a New Main Board

1. Enter Factory Mode.

2. Use a PC or chrom to send a 32-tone gray scale signal to the monitor.

3. Select “Auto Color”

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Firmware update procedure :

When you received a received monitor , please check whether the firmware version. If not , please following procedure to
upgrade to the latest version .

1. Equipment needed :

- W9V-Q2

- PC ( Personal computer )

- LPT cable

- Fixture (LM5ISP)

- Firmware upgrade program

2. Connection :

To PC To Monitor

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Appendix A : How to install the software for ISP :

0. To setup ISP environment :

Hardware: PC or notebook, parallel(printer) cable, ISP tooling.
Software: If OS was Win2000 or WinXP , please install “PORT95NT.exe”
In order to ensure can execute ISP program, please set BIOS in PC or Notebook as Fig 0.0

Fig 0.0

0.1 Double-click the “ PORT95NT.exe” in Windows & install the program. , see Fig 0.1

Fig 0.1

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0.2 Keep on press “ Next “ 4 times to go through the installation processes, see Fig. 0.2

Fig. 0.2

0.3 Choose “ Typical “ then press “ Next “ , see Fig. 0.3

Fig. 0.3

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0.4 Keep on press “ Next “ 4 times to go through the installation processes, see Fig. 0.4

Fig. 0.4

0.5 Install completed , restart the PC or notebook. See Fig 0.5

Fig. 0.5

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Appendix B : How to use software to upgrade the BIOS :

1.1 Double-click the “ ISP_TOOL.exe” in Windows, see Fig 1.1

Fig. 1.1

1.2 It is the main meun of ISP_TOOL , see Fig 1.2

Fig. 1.2

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1.3 Single-click the “Connect” button to connect with MCU. The dialog of “O.K.” will appear in window, when the computer
has finished to connect with MCU, see Fig 1.3

Fig. 1.3

1.4 Single-click the “Read” button,you can select the file of BIOS. see Fig 1.4& Fig1.5

Fig. 1.4

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Fig. 1.5

1.5 When the file of BIOS has been selected ,you will see the dialog,see Fig1.6

Fig. 1.6

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Appendix C : Use ISP to program MCU

2.1 Single-click the “Run” button,you can program the MCU. .see Fig2.1

Fig. 2.1

2.2 If the program has been done,you will seen fig3.2. Now you must Single-click the “Dis Con” to disconnect with MCU.

Fig2.2.

Q19wb-3 series de-assembling procedure

1. Move the monitor our from carton 2. Put the monitor on desk & face down

3. Loose the screws &Remove the HINGE COVER 4. Loose the screws & remove the stand

5. Loose the screws &Separate the BACK COVER 6. Remove the black tap e & AL-Foil

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7. Pull out the cables & Loose the screws &Separate the
speaker

8. Remove the AL-Foil

9.Remove the AL-Foil 10. Pull out the cables

11. Loose the screw 12.Tear off the yellow tape& Pull out the LVD cables

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13. Loose the bezel screw 14. Remove the bezel

15. Loose the BKT screw L/R 16. Move the BKT screw L/R

17. Remove the BEZEL BKT 18. Remove the GASKET

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19. Loose the BUTTON/B screw& Remove the BUTTON/B 20. Loose the IO NUT

21. Remove the POWER/B MYLAR 22. Loose the screw

23. Separate the M/B&P/B& GND PLATE 24.Separate the M/B&LVDS CABLE

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Q19wb-3 series packing method

1. Sticker on LCD protection film 2. Put the monitor into the PE or EPE bags

3. Put on the end-cap left / right 4. Put the monitor into carton

5. Put all accessories into carton 6. Seal the monitor

Face-up

Power cable & Audio cable

Base

VGA cable

MANUAL+CD

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6. Troubleshooting Flow Chart

1.No power

NO

No Power

Change Power Board

Check Power Module

Output CN101

Pin 5,6 = 5V?

Check Scalar Module

Output CN4

Pin 5,6 = 5V?

OK

Change Cable

From(Power module)CN101 to (Scalar/B)CN4

NO

OK

Check Power Button
From Scalar/B(CN8)
to Button/B(CON1)

NO

Check Cable

Open?

YES

Change Cable

NO

Change Switch or Button Board

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2.No Characters , Missing one color

Check R101 , 1.8V output

Check or Change Q5

Check R98 , 3.3V output

Check or Change U3

Check CN7 to Panel Signal Output

Check Inverter

From Power

board OK?

Change Power Board

Check X’Tal 14.318Mhz

Change X1

Check H,V SYNC?

Change U4

Check or Change Cable or Panel

Change VGA Cable

No Characters or Missing one color

Check CN4 5V Output

Change Power Board

NO

OK

NO

OK

NO

OK

NO

NO

OK

OK

OK

NO

NO

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3.No Audio

NO

OK

NO

OK

NO

No Audio

Check Input Signal AJ1

OK?

Check Input source or Change AJ1 U3

Check ACN1 to

Speaker OK?

Change Speaker or ACN1(Cable)

Check AU1(pin6)

Volume and AQ1 OK?

Change AQ1

Check

AU1(pin12)Mute,(pin11)

Stby

Change AU1 or AQ2 or AQ3

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7. Recommended Spare Parts List

Serial No. Prefix: QHZ Rev: 1a

Item ECR/ECN ViewSonic P/N Ref. P/N Location Universal number#

1

Accessories:

Power Cord - B 1.8M SP-035/10A A-PC-0106-0224 DM333181G97
2 Power Supply Board - EADP-45AF 90~240V B-00008124 AS05B520037
3 Main Board - L9F-A2 (W9ZA-L2 M16AK-LF-1) B-00008125 21L9F0MB0D3
4 Control Board (Button Board L0ZJ-A1) B-00008126 23L0ZJBB050
5 Hinge Cover - W9E-A1 C-00008150 EBW9E002010
6 Front Panel - W9V-Q2 C-00008151 34W9V0LB018
7 Cover - W9C-B1 C-00008152 25W9C0LC012
8 Base Assembly - L7C-A3 C-00008153 38L7C0BS003
9 Audio Cable - (ST,1.8M) CB-00004149 DD0L0TPC007

10 VGA Cable (15/15P,1.8M) CB-00008044 DD0L7WPC001
11 MB-LCD Cable LVDS(30P,140MM,LINKTEC) CB-00008048 DDM0TWLC001
12

Documentation

:

User's Guide DC-00008140 HGW9V002010

13 LCD Panel 19" HSD190MGW-A02 5ms E-00008051 AA90MGW1024
14 LCD Panel 19" HSD190MGW-A00 5ms E-00008072 AA90MGW1059 AUO
15 Speaker L9F(X05015N-002) 1.5Wx2 E-00008097 DN005015S08
16 Bracket - Left -HSD W9ZA-A1 HW-00008026 FBW9ZA11013
17 Bracket - Right -HSD W9ZA-A1 HW-00008027 FBW9ZA10017
18 Screw - F3.0*6.0-T(MC) HW-00008028 MF30060TJB2
19 Screw - M 4.0* 10-T(MC) HW-00008029 MS40100T138
20

Miscellaneous:

LCD Film W9V M-00008032 JXW9V001010

21 Generic Foam Set P-00001347 30833
22 Generic Box P-00002515 20653
23 PE Bag P-00004159 HAL0T002019
24 Craft Box P-00008150 HFW9V002019
25 Craft Foam - Right P-00008151 HBW9ZA04017
26 Craft Foam - Left P-00008152 HBW9ZA03011
27

Plastics:

Stand - W9C-A1 PL-00008035 26W9ZCSA006

Remark 1:

Above listed items are examples, supplier can expand the rows to add more necessary items.

Remark 2:

RECOMMENDED SPARE PARTS LIST (Q19wb-3)

Description

PC Board
Assembly:

Cables:

ViewSonic Model Number: VS11578

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.

Cabinets:

Hardware:

Packing Material:

Electronic
Components:

ViewSonic Model Number: VS11578
Rev: 1a

Serial No. Prefix: QHZ

Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty

1

N/A 1W9VZQVS046 W9V-Q2 LCD MONITOR(Q19WB-3,USA)GP

2

B-00008125 21L9F0MB0D3 L9F-A2 M/B ASSY(W9ZA-L2,M16AK-LF-1) GP

1

3

N/A 31L9F0SS0C1 L9F-A2 M/B S/S ASSY(W9ZA-L2,M16AK-1)GP

1

4

N/A CC547X6MD03 CAP EC 4.7U50V(+-20%105C.5*11,5K)CXN GP

C40 1

5 N/A CC610X6MD01 CAP EC 10U 50V(+-20%.105C.5*11,5K)CXN GP

C32,C34,C45,C49,C5
3,C54,C58,C97

8
6 N/A CC710X4MD02 CAP EC100U25V(+-20%105C,6.3*11,5K)CXN GP C15 1
7 N/A CC733L3MD17 CAP EC DIP 330U16V(+-20%,105C,8*11)LXNGP

AC3,AC5,AC9,AC11,
C30,C31,C76

7
8

N/A DFTJ05FR037 CONN DIP PHONE JACK 5P FR(J303-1-A-G+)GP

AJ1 1

9

N/A DFDS15FR041 CONN D-SUB 15P 3R FR(P1.15,H12.55) GP

CN1 1

10

N/A DFDS15FR076 CONN D-SUB 15P 3R FR(P1.15,H12.55) GP

CN1 1

11

N/A DFHD08FR102 CONN DIP HEADER 8P 2R FR(P2.54,H5.0) GP

CN4 1

12

N/A DFHD30MR267 CONN DIP HEADER 30P 2R MR(P2.0,H4.0) GP

CN7 1

13

N/A DFHD04MR132 CONN DIP HEADER 4P 1R MR(P2.0,H4.1) GP

ACN1 1

14

N/A BG614318081 XTALDIP14.318MHZ(+-30PPM,70.C 49/S) GP

X1 1

15

N/A AL007496D02 IC(20P) TDA7496L(DIP) GP

AU1 1

16

N/A AL007496D29 IC(20P) UTC TDA7496LK(DIP) GP

AU1 1

17

N/A DFHD08FR021 CONN DIP HEADER 8P 1R FR(P1.0,H3.0)GP

CN8 1

18

B-00008126 23L0ZJBB050 L0ZJ-A1 BUTTON/B ASSY(FOR W9C-B1)GP

1

19

N/A DAL0ZJTB129 PCB(BUTTON) L0ZJ-A1(2L,126*9,REVB)ID3 GP

1

20

N/A BEYG0004ZA1 LED(SMD) Y/G(KPTB-1612NSGC) GP

LED1 1

21

N/A DEFC2879003 CABLE FFC(8P,287MM,ID3)W9C-B2 GP

CON1 1

22

N/A FCL0ZJ01010 METAL DOME SWITCH L0ZJ-A1(FCL0ZJ01,3A)GP

1

23

B-00008124 AS05B520037 ADP/INV EADP-45AF BF, 90~264V GP

1

24

C-00008151 24W9V0LB018 W9V-Q2 LCD BEZEL ASSY GP

1

25

N/A 34W9V0LB018 W9V-Q2 LCD BEZEL SUB ASSY GP

1

26

N/A 36W9C0PS003 W9C-B1 PCB SHIELD ASSY(N/DVI)NEW GP

1

27

N/A FCL7B001018 POWER BOARD MYLAR L7B(FCL7B001,REV3A)GP

1

28

N/A FCL7G001016 AL FOIL L7G(FCL7G001,REV3A)HAN GP

1

29

N/A FCM7T004014 AL FOIL M7T(FCM7T004,REV3A) GP

2

30

M-SCW-0824-0726 MF30080BBJ5 SCREW F3.0*8L,B,NI GP

2

31

N/A MF30060TJB2 SCREW F3.0*6.0-T(MC)GP

5

32

M-SCW-0824-6799 MM35080BBW2 SCREW M3.5*8-B (NI,WASHER)GP

1

33

N/A EBW9E003016 BEZEL BKT W9E-A1(EBW9E003,REV3A) GP

1

34

N/A MM30050B241 SCREW M3.0*5.0-B BLACK (NYLOK)GP

2

35

M-SCW-0824-6761 MM30030IBJ4 SCREW M3*3-I-NI GP

16

36

N/A MF20025IBJ8 SCREW F2*2.5-I(NI) GP

2

37

M-MS-0808-8986 MBLI1004018 IO NUT LI1(MBLI1004,REV3A)GP

2

38

N/A GBL9C003019 GASKET 7*7*0.6T L9C-B1(GBL9C003,R3A)GP

1

39

N/A GBL9C002012 GASKET 15*8*0.6T L9C-B1(GBL9C002,R3A)GP

1

40

N/A FBW9TB02013 GND PLATE-VGA-PANEL W9TB(FBW9TB02,R3A)GP

1

41

C-00008152 25W9C0LC012 W9C-B1 LCD COVER ASSY GP

1

42

N/A EAW9C002011 LCD COVER W9C-B1(EAW9C002,REV3A) GP

1

43

N/A FBW9ZA03011 HINGE BKT W9ZA(FBW9ZA03,REV3A)GP

1

44

PL-00008035 26W9ZCSA006 W9ZC-A1 STAND ASSY GP

1

45

N/A EAL7C004019 STAND L7C-A1(EAL7C004,REV3C)GP

1

46

N/A FBW9E003016 HINGE ASSY W9E-A1(FBW9E003,REV3A) GP

1

47

N/A DDL70LTH103 CABLE ASSY L70L STAND-HINGE(1P, REV1A)GP

1

48

HW-00008029 MS40100T138 SCREW M4.0*10-T(MC)GP

4

49

M-SCW-0824-0727 MF30080IBJ0 SCREW F3.0*8-I(NI)GP

2

50

M-SCW-0824-6761 MM30030IBJ4 SCREW M3*3-I-NI GP

1

51

N/A FBL7C006012 GND PLATE L7C-A1(FBL7C006,REV3A)GP

1

52

N/A 27W9C0CS003 W9C-B1 CHASSIS ASSY GP

1

53

C-00008150 EBW9E002010 HINGE COVER W9E-A1(EBW9E002,REV3A) GP

1

54

CB-00008048 DDM0TWLC001 CABLE MB-LCD(30P,100MM,LG,AU)M0TW GP

1

55

N/A DDM0TWLC010 CABLE LVDS(30P,100MM,LINKTEC,LG)M0TW GP

1

56

E-00008097 DN005015S08 SPEAK ASSY L9F(X05015N-002)1.5W*2 GP

1

57

N/A MM40130P000 SCREW M4.0*13-P(BLACK)GP

2

58

N/A MM40120FJB8 SCREW M4.0*12-F(BLACK)GP

2

59

N/A 2AW9V0PTU08 W9V-Q1 PANEL DEPENDENT KIT ASSY(HSD) GP

1

60

E-00008051 AA90MGW1024 LCD 19"HSD190MGW1-A02 5MS FOR VSC CON GP

1

61

N/A AZW9V0BU008 W9V-Q1 BIOS(HSD190MGW1-A02)TUM16AL 5MS

1

62

HW-00008026 FBW9ZA11013 LCD BKT-L-HSD W9ZA-A1(FBW9ZA11,REV3A)GP

1

63

N/A FBW9ZA10017 LCD BKT-R-HSD W9ZA-A1(FBW9ZA10,REV3A)GP

1

64

N/A 2AW9V0PTU16 W9V-Q2 PANEL DEPENDENT KIT ASSY(HSD) GP

1

65

N/A AA90MGW1041 LCD 19" HSD190MGW1-A00K(5MS)FOR VSC GP

1

66

N/A AZW9V0BU105 W9V-Q2 BIOS HSD(A00K)TSUM16AK-LF-1 5MS

1

67

HW-00008026 FBW9ZA11013 LCD BKT-L-HSD W9ZA-A1(FBW9ZA11,REV3A)GP

1

68

N/A FBW9ZA10017 LCD BKT-R-HSD W9ZA-A1(FBW9ZA10,REV3A)GP

1

69

N/A 2AW9V0PTU24 W9V-Q2 PANEL DEPENDENT KIT ASSY(HSD-K)GP

1

70

E-00008072 AA90MGW1059 LCD 19"HSD190MGW1-A00 5MS FOR VSC GP

1

71

N/A AZW9V0BU024 W9V-Q2 BIOS HSD(A00)TSUM16AK-LF-1 5MS

1

72

HW-00008026 FBW9ZA11013 LCD BKT-L-HSD W9ZA-A1(FBW9ZA11,REV3A)GP

1

73

N/A FBW9ZA10017 LCD BKT-R-HSD W9ZA-A1(FBW9ZA10,REV3A)GP

1

74

N/A 28W9V0PK011 W9V-Q2 PACKING ASSY GP

1

75

C-00008153 38L7C0BS003 L7C-A3 BASE SUB ASSY(BLACK)GP

1

76

CB-00008044 DD0L7WPC001 CABLE MB-VGA(15P,1.8M)L7E BLACK 5.5 GP

1

77

CB-00004149 DD0L0TPC007 CABLE AUDIO(ST,1.8M)BLACK L0T GP

1

78

P-00004159 HAL0T002019 PE BAG L0T(HAL0T002,REV3A)GP

1

BOM LIST (Q19wb-3)

ViewSonic Corporation Confidential - Do Not Copy Q19wb-3

46

Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty

79

P-00008151 HBW9ZA04017 END CAP-R W9ZA-A1(HBW9ZA04,REV3A) GP

1

80

P-00008152 HBW9ZA03011 END CAP-L W9ZA-A1(HBW9ZA03,REV3A) GP

1

81

M-LB-0813-0747 HCL7V004013 CORE LABEL(HCL7V004,REV3A)GP

1

82

M-LB-0813-0745 HCL7V002011 SERIAL LEBAL L7V(HCL7V002,REV3A) GP

1

83

M-LB-0813-1042 HCL7V019011 CARTON LABEL L7VC(HCL7V019,REV3B) GP

1

84

M-LB-0813-1043 HCL70021011 HI-POT LABEL L70L(HCL70021,REV3A)GP

1

85

N/A HCW9V001010 ID LABEL W9V-Q1(HCW9V001,R3A) GP

1

86

DC-00008140 HGW9V002010 MANUAL+CD W9V-Q2(HGW9V002,R3A) GP

1

87

P-00008150 HFW9V002019 CARTON W9V-Q2(HFW9V001,R3A) GP

1

88

N/A JXW9C001017 HANDLE UPPER W9C-B1(JXW9C001,REV3A)GP

1

89

N/A JXW9C002013 HANDLE DOWN W9C-B1(JXW9C002,REV3A)GP

1

90

N/A HFW9C004019 SPACE PLATE W9C-B(HFW9C004,R3A) GP

0.036

91

N/A HFW9C003012 SPACE PLATE W9C-A(HFW9C003,R3A) GP

0.025

92

A-PC-0106-0224 DM333181G97 PWR CORD B 1.8M SP-305/10A USA GP

1

93

M-00008032 JXW9V001010 LCD FILM W9V(JXW9V001,R3A)440*285 GP

1

ViewSonic Corporation Confidential - Do Not Copy Q19wb-3

47

ViewSonic Corporation Confidential - Do Not Copy Q19wb-3

48

8. Exploded Diagram and Exploded Parts List

ViewSonic Model Number: VS11578
Rev: 1a

Serial No. Prefix: QHZ

Item ViewSonic P/N Ref. P/N Description Q'ty

1 N/A EAW9V002014 LCD BEZEL W9V-Q2 1
2 M-SCW-0824-6761 MM30030IBJ4 SCREW M3*3-I-NI 17
3 N/A EBW9V002015 BUTTON W9V-Q2 1
4 N/A EBW9C002012 LED LENS W9C-B1 1
5 N/A 23L0ZJBB050 L0ZJ-A1 BUTTON/B ASSY 1
6 N/A MF20025IBJ8 SCREW F2*2.5-I(NI) GP 2
7 N/A FBW9ZA10017 LCD BKT-R-HSD W9ZA-A1( 1
8 HW-00008026 FBW9ZA11013 LCD BKT-L-HSD W9ZA-A1 1

9 E-00008097 DN005015S08 SPEAK ASSY L9F)1.5W*2 1
10 E-00008072 AA90MGW1059 LCD 19"HSD190MGW1-A00 5MS 1
11 N/A EBW9E003016 BEZEL BKT W9E-A1 1
12 N/A FCL7B001018 POWER BOARD MYLAR L7B 1
13 B-00008124 AS05B520037 ADP/INV EADP-45AF BF, 90~264V 1
14 M-MS-0808-8986 MBLI1004018 IO NUT LI1 2
15 N/A 21L9F0MB0D3 L9F-A2 M/B ASSY 1
16 N/A MF30060TJB2 SCREW F3.0*6.0-T(MC)GP 5
17 M-SCW-0824-6799 MM35080BBW2 SCREW M3.5*8-B (NI,WASHER)GP 1
18 N/A FAW9C001015 PCB SHIELD W9C-B1 1
19 N/A FCL7TA01018 SHIELD ING MYLAR 1
20 N/A FCL7G001016 AL FOIL M7G 2
21 N/A FCM7T004014 AL FOIL M7T 1
22 N/A FBW9ZA03011 HINGE BKT 1
23 N/A EAW9C002011 LCD COVER W9C-B1 1
24 HW-00008029 MS40100T138 SCREW M4.0*10-T 4
25 N/A FBW9E003016 HINGE ASSY W9E-A1 1
26 N/A EAL7C004019 STAND L7C-A1 1
27 HW-00008029 MS40100T138 CABLE ASSY L70L STAND-HINGE 1
28 N/A FBL7C006012 GND PLATE L7C-A1 1
29 M-SCW-0824-0727 MF30080IBJ0 SCREW F3.0*8-I(NI)GP 2
30 N/A EAL7C005015 BASE L7C-A1 1
31 M-MS-0808-9251 GAL5V002013 RUBBER FOOT L5VC 4
32 C-00008150 EBW9E002010 HINGE COVER W9E-A1 1
33 M-SCW-0824-0726 MF30080BBJ5 SCREW F3.0*8L,B,NI GP 2
34 N/A MM40120FJB8 SCREW M4.0*12-F(BLACK)GP 2
35 N/A MM40130P000 SCREW M4.0*13-P(BLACK)GP 2
36 N/A MM30050B241 SCREW M3.0*5.0-B BLACK 2
37 CB-00008048 DDM0TWLC001 CABLE MB-LCD 1
38 N/A DEFC3309006 CABLE FFC(8P,287MM,ID3)W9C-B2 1
39 N/A GBL9C003019 GASKET 7*7*0.6T L9C-B1 2

EXPLODED PARTS LIST (Q19wb-3)

ViewSonic Corporation Confidential - Do Not Copy Q19wb-3

49

SPK

SPK

POWER/B

Main Board

Button Board

&INV./B

TO PANEL

TO PANEL LVDS

CN4

ACN1

CON1

CN8

CN7

CN202

CN203

CN204

CN205

CN101

ViewSonic Corporation Confidential - Do Not Copy Q19wb-3

50

ViewSonic Model Number: VS11578
Rev: 1a

Item ViewSonic P/N Ref. P/N Location Q'ty

1 N/A

1W9VZQVS046 W9V-Q2 LCD MONITOR(Q19WB-3,USA)GP

1

2 C-00008153

38L7C0BS003 L7C-A3 BASE SUB ASSY(BLACK)GP

1

3 P-00008152

HBW9ZA03011 END CAP-L W9ZA-A1

1

4 P-00008151

HBW9ZA04017 END CAP-R W9ZA-A1

1

5 P-00008150

HFW9V002019 CARTON W9V-Q2

1

6 M-LB-0813-1042

HCL7V019011 CARTON LABEL L7VC

1

7 CB-00008044

DD0L7WPC001 CABLE MB-VGA(15P,1.8M)L7E BLACK 5.5

1

8 CB-00004149

DD0L0TPC007 CABLE AUDIO(ST,1.8M)BLACK L0T GP

1

9 A-PC-0106-0224

DM333181G97 POWER CORD SP-30+IS-14 3P 1.8M(USA)B

1

10 P-00004159

HAL0T002019 PE BAG L0T

1

11 N/A

HGW9V001013 MANUAL+CD W9V-Q1

1

12 M-00008032

JXW9V001010 LCD FILM W9V

1

13 M-LB-0813-1043

HCL70021011 HI-POT LABEL L70L

1

14 N/A

HCW9V001010 ID LABEL W9V-Q1

1

15 M-LB-0813-0745

HCL7V002011 SERIAL LEBAL L7V

1

PACKING PART LIST (Q19wb-3)

ViewSonic Corporation Confidential - Do Not Copy Q19wb-3

51

ViewSonic Corporation Confidential - Do Not Copy Q19wb-3

52

9. Block Diagram

LVB0P

ON/OFF

CE#

ADJ

VDDP

DDCROM_SCL

LED_ORANGE

LVA0M

VGA

SEL

LC

GIN-

HSYNC0

H-SYNC

PWM1

LVA1M

POWER BOARD

+1.8V

DDC-SCL

LED_GRN

RST

+3.3V

AVDD_PLL

LVB3M

LCD VDD

SWCHING

SDO

LVDS Interface

LVB2M

AVDD_DVI

LVACKM

GPIO_P25

LC

ON BACKLITE

MENU

BIN-

BGND

(24LC16)

XOUT

(SST25VF010)

RIN+

RGND

BIN+

14.318MHz

P00

ON/OFF

LCD-TFT Module

LVB1M

Inverter

G+

GPIO_P23

SDI

SOGIN

DDCROM_SDA

RIN-

VDDC

LVA3M

P13

LVB0M

LVACKP

P07

Q5

VCC3.3

V-SYNC

SOG

POWER

SDA

LVBCKM

P14

SDI

LVB2P

LC

U3

PWM0

LVBCKP

P02

VCTRL

LC

(TSUM16AK-LF-1)

VCC3.3

AVDD_ADC

RESET

LC

DDCA_SCL

VCC3.3

SW BOARD

Scaler

BRIGHTNESS ADJ

LVB1P

LVA0P

DDCA_SDA

+12V

P01

SCL

SCK

SCK

B+

VCC3.3

LVB3P

GIN+

+5V

(AP1117ELA)

P26

CE#

LVA1P

XIN

U5

R+

VDDCTRL_2

LEFT

DDC-SDA

LVA2M

SDO

LC

VSYNC0

VCC1.8

RIGHT

VCC3.3

AVDD_MPLL

VCTRL

ADJ

GPIO_P12

GGND

LVA2PU6LVA3P

CLK+

CLK-

CLK+

CLK-

CN1

System Block Diagram

ViewSonic Corporation Confidential - Do Not Copy

53

10. Schematic Diagrams

Model

Title

Date Rev:

ViewSonic Corporation

VGA & DVI Input

RED+IN GREEN+IN BLUE+IN

IN-H IN-V VGA_SCL_OVGA_SDA_O

IN-V

RED+IN

VSYNC

BLUE-IN

GREEN+IN

BLUE+IN

GREEN-IN

RED-IN

IN-V

GREEN-IN

GREEN+IN

IN-H

VGA_SCL_O

BLUE+IN

DDC-SDA

RED-IN

VGA_SDA_O

DSUB_5V_O

DDC-SCL

RED+IN

RX2+RX2-

BLUE-IN

RX1+RX1-

SDA-DDDC

RX0-

SCL-DDDC

RXC+ RXC-

SCL-DDDC
SDA-DDDC

RX0+

HSYNC

IN-H

DDCD_SCL
DDCD_SDA

RX2­RX2+

RX1­RX1+

RX0+

RX0-

RXC+
RXC-

DSUB_5V

VCC3.3

DDC_VCC DDC_VCC

VCC3.3

VCC3.3

DVI_5V

DDC_VCC

DVI_5VVCC5V

DDC_VCC

VCC3.3

SOGIN 5

GREEN+ 5

RED- 5

BLUE+ 5

VSYNC 5

BLUE- 5

RED+ 5

GREEN- 5

DDCA_SCL 5

DDCA_SDA 5

DDCD_SCL 5
DDCD_SDA 5

R- 5
R+ 5

G- 5

B- 5
B+ 5

CLK+ 5
CLK- 5

G+ 5

HPD_Ctrl 5

HSYNC 5

C88

0.1uF/6/NC

D13

Z5.6/NC

2 1

C7 0.01uF/6

R25 100/6

R19 10/6

D2

DAN217K/NC

12

3

R2 100/6

C12

33pF/6

D7

Z5.6/NC

2 1

C10 0.047uF/6

R4 100/6/1%

R107 10K/6/NC

C6 0.047uF/6

C93

0.1uF/6/NC

C5

NC

R3

75/6/1%

R104

4.7K/6/NC

D11

DAN217K/NC

12

3

R17

2.2K/6

C3 0.047uF/6

D15

DAN217K/NC

12

3

R12 100/6/1%

R6

75/6/1%

R106 10K/6/NC

R30 10/6

U7 24C02

A0

1

A1

2

A2

3

GND4SDA

5

SCL

6

WP

7

VCC

8

C2

NC

R7 100/6/1%

R1 56/6/1%

C96

0.1uF/6/NC

R5 56/6/1%

D17

DAN217K/NC

12

3

D3

DAN217K/NC

12

3

L5 100/6

D8

DAN217K/NC

12

3

R14

2.2K/6

CN3

DVI-I

RX2-

1

RX2+

2

GND

3

RX4-

4

RX4+

5

SCL

6

SDA

7

VS

8

RX1-

9

RX1+

10

GND

11

RX3-

12

RX3+

13

5V

14

GND

15

HP

16

RX0-

17

RX0+

18

GND

19

RX5-

20

RX5+

21

GND

22

RXC+

23

RXC-

24

26

25

R117 220/6/NC

C1 0.047uF/6

D14

DAN217K/NC

12

3

Q13

PMBS3904/NC

C

B

E

C90

0.1uF/6/NC

R20

10K/6

R28 10/6

D32
BAT54C-GS08

R10 56/6/1%

D5

Z5.6/NC

2 1

C4 0.047uF/6

R118 220/6/NC

R24 100/6

CN1

VGA

1
6
2
7
3
8
4
9
5

11

12

13

14

15

10

1617

D16

DAN217K/NC

12

3

R29 10/6

R13 1K/6

R8 100/6

R15 100/6

D10

DAN217K/NC

12

3

L2 CX000300112

C89

0.1uF/6/NC

R16 1K/6

R18 10/6

R119 220/6/NC

R22 10/6

C95

0.1uF/6/NC

C86

0.1uF/6/NC

R11

75/6/1%

D12

Z5.6/NC

2 1

R111

0/6/NC

C13

0.1uF/6NC

R23 10/6

C101

0.1uF/6

D6

Z5.6/NC

2 1

R9 470/6

D1

DAN217K/NC

12

3

R120 220/6/NC

L4 CX000300112

C11

33pF/6

D9

DAN217K/NC

12

3

D4

Z5.6/NC

2 1

R27 10/6

C92

0.1uF/6/NC

C87

0.1uF/6/NC

L1 CX000300112

L3 0/ 6

C8 0.047uF/6

C91

0.1uF/6/NC

C9

NC

C94

0.1uF/6/NC

R26 10K/6

R21
10K/6

Q19wb-3

ViewSonic Corporation Confidential - Do Not Copy

54

Model

Title

Date Rev:

ViewSonic Corporation

SCALER

MENU_OLEFT_O UP_O DOWN_OSEL_OPWR_ORIGHT_O

LEFT

MENU_O

UP

RIGHT_O

UP_O

PWR_O

LED_R

LEFT_O

SEL_O

LED_R_O
LED_R_G

LED_G

MENU

RIGHT

SEL

DOWN_O

PWR

DOWN

PWR

UP

SEL

RIGHT

MENU

LED_G

DOWN

LED_R

LEFT

MENU_O
SEL_O
PWR_O
RIGHT_O
LEFT_O
LED_R_O
LED_R_G

WP

WP

VCC1.8

VCC3.3

VDDC

AVDD

VCC3.3 VDDP

VCC3.3 VDVI

VCC3.3 VPLL

VMPLLVCC3.3

VCC3.3 VCC3.3 VCC3.3 VCC3.3 VCC3.3 VCC3.3 VCC3.3

VCC3.3

VCC3.3

VCC3.3

VCC3.3

VCC3.3

VMPLL VDDPVDVI

VCC3.3

VDDCVPLL

VCC5V

AVDD

VCC3.3

AVDD

5V

on_BACKLIGHT 6

VSYNC4

VCTRL 6

CLK-4

LVA3M 7

DDCD_SCL4

LVB2M 7

GREEN+4

HPD_Ctrl 4

RED+4

DDCA_SCL4

G-4

GREEN-4

LVA2M 7

LVA3P 7

LVA2P 7

LVB0P 7

R-4

LVB0M 7

SOGIN4

LVA1M 7

B-4

LVBCKP 7

G+4

LVB1M 7

LVA0P 7

LVB3M 7

STBY 8

LVB2P 7

adj_BACKLIGHT 6

HSYNC4

BLUE-4

LVB3P 7

LVA1P 7

VOLUME 8

LVA0M 7

RED-4

LVB1P 7

B+4

DDCD_SDA4

MUTE 8

BLUE+4

R+4

LVACKM 7

DDCA_SDA4

VDDCTRL_2 7

LVBCKM 7

LVACKP 7

CLK+4

TO BUTTON BOARD

2006/03/13 ADD

Add WP Control Avoid data losing.

FB3

CX201209813

C47

0.1uF/6

R71

4.7K/6

R70 4.7K/6

C51

0.1uF/6

R108 100/6

C48

0.1uF/6

R68

33K/6

+

C58

10uF/50V

L11 1K/6/1%

1 2

C52

0.1uF/6

R51

10K/6

R60 82K/6

C42

0.1uF/6

C650.1uF/6

R56 NC

C43

0.1uF/6

R74 100/6

R64

33K/6

C50

0.1uF/6

Q7

PMBS3906

C61

0.1uF/6

C97

10uF/50V

C630.1uF/6

R57
68K/6

+

C45

10uF/50V

U6 2 4C16

A0

1

A1

2

A2

3

GND4SDA

5

SCL

6

WP

7

VCC

8

L15 1K/6/1%

1 2

+

C49

10uF/50V

R62

10K/6

R63

33K/6

CN8

7101-E08N

1

2

3

4

6

8
7

5

C46

0.1uF/6

D26

DAN217K/NC

12

3

X1

14.318MHZ

L12 1K/6/1%

1 2

R66

33K/6

D25

DAN217K/NC

12

3

FB5

CX201209813

R59

10K/6

L17 100/6/1%

1 2

C39

0.1uF/6

C55

0.1uF/6

L18 330/6/1%

1 2

R105

10K/6

C41

0.1uF/6

U5

SST25VF512A

CE#

1

SDO

2

WP#

3

VSS4SDI

5

SCK

6

HOLD#

7

VDD

8

R67

33K/6

R103 NC

R65

33K/6

R54

10K/6

L16 1K/6/1%

1 2

C670.1uF/6

+

C40

4.7uF/50V

R75 100/6

CN5

JWT-A2001WV2-04/NC

1
2
3
4

C37

0.1uF/6

C44

0.1uF/6

L13 1K/6/1%

1 2

C100 0.1uF/6

R73

10K/6

C56 22pF/6

D31

DAN217K/NC

12

3

R55 NC

C36

0.1uF/6

C620.1uF/6

L10 1K/6/1%

1 2

+

C34

10uF/50V

FB1

CX201209813

CN6

4501-10-10P-R/NC

1

2

3

4

5

6

7

8

9

10

FB2

CX201209813

R109
10K/6

R58

10K/6

FB4

CX201209813

Q6

PMBS3906

U4

TSUM16AK-LF-1

RIN0P

59

GIN0P

56

SOGIN0

57

BIN0P

54

RIN0N

58

GIN0N

55

BIN0N

53

HSYNC0

63

VSYNC0

64

REXT

51

REFP

62

REFM

61

SDO

70

SCK

72

SCZ

71

SDI

73

GPIO_P27/PWM1

79

PWM1/GPIO_P25

21

LVACKM

108

XIN

32

XOUT

33

LVA2P

109

LVA2M

110

LVA1P

111

LVA1M

112

LVA0P

113

LVA0M

114

LVB3P

118

LVB3M

119

LVBCKP

120

LVBCKM

121

LVB2P

122

LVB2M

123

LVB1P

124

LVB1M

125

LVB0P

126

LVB0M

127

LVACKP

107

LVA3M

106

LVA3P

105

GND41GND

47

RX2P

39

RX2N

40

RX1P

42

RX1N

43

AVDD_DVI

44

RX0P

45

RX0N

46

RXCKP

48

RXCKN

49

GND38GND96GND

116

VDDP

67

VDDC

12

MODE[1]

104

MODE[0]

102

VCTRL

11

VDDP

14

VDD_OTP

68

DDCA_SDA

65

DDCA_SCL

66

DDCD_SDA

36

DDCD_SCL

37

PWM0/GPIO_P26

29

AVDD_DVI

50

VDDC

97

GPIO_P15

69

PWM2/GPIO_P24

78

GPIO_P12

20

GPIO_P17/SAR0

22

GPIO_P00/SAR1

23

GPIO_P01/SAR2

24

GPIO_P06

27

GPIO_P07

28

GPIO_P13

30

GPIO_P14

31

GPIO_P16

35

DDCROM_SDA

76

DDCROM_SCL

77

RST

19

NC

100

NC

101

NC

98

NC

99

NC

93

NC

94

NC

91

NC

92

NC

89

NC

90

NC

9

NC

10

NC

15

NC

16

NC

17

NC

18

NC

2

NC

3

NC

5

NC

6

NC

7

NC

8

NC

128

NC

1

NC

80

NC

81

NC

88

NC

87

NC

86

NC

85

NC

84

NC

83

NC

82

GPIO_P02/SAR3

25

GPIO_P03

26

GPIO_P22

75

GPIO_P23

74

AVDD_PLL

52

AVDD_MPLL34AVDD_MPLL

4

VDDP95VDDP

103

VDDP

115

VDDC

117

AVDD_ADC

60

GND

13

R61

10K/6

C35

0.1uF/6

C60 0.1uF/6

C98

1uF/8

R52

10K/6

C57 22pF/6

+

C54

10uF/50V

C640.1uF/6

FB6

CX201209813

C59

0.1uF/6

C680.1uF/6

C53

10uF/50V

R110

0/6/NC

R69

33K/6

D27

DAN217K/NC

12

3

C660.1uF/6

D30

DAN217K/NC

12

3

C38

0.1uF/6

D29

DAN217K/NC

12

3

L14 1K/6/1%

1 2

D28

DAN217K/NC

12

3

R72

10K/6

R53 390/6/1%

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Model

Title

Date Rev:

ViewSonic Corporation

POWER

VCC3.3

VCC12

VCC3.3 VCC3.3

VCC3.3

VCC3.3

VCC5V

VCC5V

VCC1.8

5V

DSUB_5V DVI_5V

on_BACKLIGHT 5

adj_BACKLIGHT 5

VCTRL 5

0.8A Max

C14

0.1uF/6

Q4

PMBS3904

31

2

L9

CX121A50006/1206

+

C31
330uF/16V

CN4

4

5 6

1 2
3

87

D22

BAT54C-GS08

R100 0/6

+

C30

330uF/16V

U3-A

AP1117ELA/TO252/NC

ADJ/GND

1

VOUT

2

VIN

3

OUT

4

R50

100/6/1%

C99

0.1uF/NC

D21

ML25PT

Q2

PMBS3904

31

2

R36 1K/6C18

1uF/8

+

C32

10uF/50V

R47

330/6/1%

R46

200/6/1%

Q5

CHT2907APT

C

B

E

R43 2K/6

U3

AP1117ELA/TO223

ADJ/GND

1

VOUT

2

VIN

3

OUT

4

C24

1uF/8/NC

D24

LL1N4148PT

R48

47/6

Q8

CHT2907APT

C

B

E

R31

10K/6

R32

10K/6

R38

1K/6

C15

100uF/25V

D23

LL1N4148PT

R96

0/6/NC

R41 0/6

R49

2K/6

R95

0/6

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Model

Title

Date Rev:

ViewSonic Corporation

PANEL

RXO1-LVB1M

RXO0-LVB0M RXO0+ LVB0P

RXO1+ LVB1PLCDVCC

RXO3+ LVB3P

RXE2-LVA2M

LVBCKM RXOC-

LCDVCC

GND

RXE1-LVA1M

GND
RXE1+ LVA1P

LCDVCC

GND

RXE2+ LVA2P

RXE3-LVA3M

RXO3-LVB3M

RXE0+ LVA0P

RXE3+ LVA3P
POL

RXOC+ L VBCKP

LCDVCC

LVB2M RXO2-

LVACKM RXEC-

LVB2PRXO2+

RXEC+ LVACKP

RXE0-LVA0M

GND

LVB3M
LVBCKP

LVB0M

LVB1P

LVBCKM

LVB0P

LVB3P

LVB1M

LVB2M

LVB2P

LVA3P
LVA3M
LVACKP

LVA2P

LVACKM

LVA2M

LVA1M

LVA1P

LVA0P
LVA0M

LCDVCC

15GND

15GND

LCDVCC

GND

GND

VCC3.3

LCDVCC

VCC5V

VDDCTRL_2 5

LVA0P 5

LVBCKP 5

LVB2P 5

LVACKP 5

LVA1P 5

LVA2M5

LVB2M5

LVACKM5

LVA3P 5

LVBCKM5

LVB0P 5

LVB3M5
LVA0M5

LVB3P 5

LVA1M5

LVA2P 5

LVB0M5
LVB1M5

LVB1P 5

LVA3M5

LVBCKP5

LVA0P5

LVB2P5

LVA2M5

LVACKP5

LVA1P5

LVBCKM5

LVACKM5

LVA3P5

LVB2M5

LVB3M5

LVB0P5

LVA0M5

LVA1M5

LVB3P5

LVA2P5

LVA3M5

LVB1M5

LVB0M5

LVB1P5

E

1

S

1

2

3

C

B

2

G

3

D

2006/03/14 ADD FFC FPE Connector

R86

10K/6

R102

0/6

12

R85

82K/6

Q12

SN7002E/NC

3

2

1

1

H2

MTH276D126

2
3
4
5 6

7

8

9

C76

330uF/16V

R77

0/8

R81

10K/6

12

Q9 AO3415L

3

2

1

R83

3.6K/NC

CN7

1

1

3

3

5

5

7

7

9

9

11

11

13

13

15

15

17

17

19

19

21

21

23

23

25

25

27

27

29

29

2

2

4

4

6

6

8

8

10

10

12

12

14

14

16

16

18

18

20

20

22

22

24

24

26

26

28

28

30

30

CN9

FFC 30PIN PH=1.0 (MS240430)/NC

1

1

2

2

3

3

4

4

6

6

8

8

10

10

12

12

14

14

16

16

18

18

20

20

22

22

24

24

26

26

28

28

30

30

7

7

9

9

11

11

13

13

15

15

17

17

19

19

21

21

23

23

25

25

27

27

29

29

5

5

313132

32

C73

2200pF/6

12

1

H3

MTH276D126

2
3
4
5 6

7

8

9

1

H1

MTH276D126

2
3
4
5 6

7

8

9

C75

0.1uF/6

12

R99
0/6/NC

R80

82K/6

C74

2200pF/6

1 2

Q11

CHDTC144EUPT

2

31

R87

1.2K/6/NC

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Model

Title

Date Rev:

ViewSonic Corporation

AUDIO

LIN_PC

RIN_PC

VOLU

VOLU

L_LINE

R_LINE

SPKOUTL

Z0415

SPKOUTR

Z0416

GNDAGND

AGND

GND

AGND

AGND

AGND

AGND

AGND AGND

AGND

AGND

+12V_A

+12V_A

+12V_A

+12V_A

+12V_A

VCC12

VCC3.3

VCC3.3

AGND

AGND

VOLUME5

MUTE5

STBY5

PC
AUDIO-IN

AR14 1K/6

AL6 CX201209813

AR6 100/6

AR13
10K/6

AL7 CX201209813

AC1

1uF/8

ACN1

1
2
3
4

AC11

330uF/16V

AQ3
PMBS3906

R91

20K/6

AL3 CX201209813

1 2

AC2

0.1uF/6

AR2 10K/6

AJ1

2

3

4

5

1

AR9 CX201209813

AC8

220pF/6

AU1

TDA7496L

INL

4

INR

9

VAROUT_L

5

VOLUME

6

VAROUR_R

7

OUTL

17

OUTR

14

MUTE

12

STBY

11

SVR

10

GND

13

VS15VS

16

GND1GND2GND3GND19GND20GND

18

R92

20K/6

AR12 10K/6

AR10 10K/6

AL4 CX201209813

1 2

AC7

220pF/6

AC4 0.47uF/6

AR8 CX201209813

AQ2

PMBS3906

R94

10K/6

AC3

330uF/16V

AC10

0.1uF/6

AC9

330uF/16V

AR15 1K/6

AL5

CX201209813

AR11
10K/6

AR1 10K/6

AR7 100/6

AC5

330uF/16V

R93

10K/6

AC6 0.47uF/6

AL1 CX201209813

AQ1
PMBS3904

2

31

AL2 CX201209813

AR5 2K/6

AR4 4.7K/6

AR3 1K/6

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Model

Title

Date Rev:

ViewSonic Corporation

AC to DC ADAPTOR

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Model

Title

Date Rev:

ViewSonic Corporation

AC to DC ADAPTOR

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Model

Title

Date Rev:

ViewSonic Corporation

Metal Dome Button Board

MENU

SEL

PWR

LEFT

AMBER

RIGHT

GREEN

Orange / Blue : KPTB-1612SEKPBAC
Orange / Green : KPTB-1612NSGC

SW3 SW METALDOME

SW4 SW METALDOME

SW5 SW METALDOME

CON1

PH=1.0mm 8Pin/NC

1

2

3

4

6

8
7

5

9 10

BLUE

AMBER

3

12

4

LED1 KPTB-1612

SW1 SW METALDOME

SW2 SW METALDOME

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11. PCB Layout Diagrams

ViewSonic Corporation Confidential - Do Not Copy

62

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64

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65

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66

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* 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
([e-mail])