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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 - (800) 888-8583

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
1a

SM Editing Date
10/31/2006

ECR Number

Description of Changes
Initial Release

Editor
Jamie Chang

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TABLE OF CONTENTS

1. 2. 3. 4. 5. 6. 7. 8. 9.

Precautions and Safety Notices Specification Front Panel Function Control Description Circuit Description Adjustment Procedure Troubleshooting Flow Chart Recommended Spare Parts List Exploded Diagram and Exploded Parts List Block Diagram

1 4 10 12 20 42 46 48 52 53 61

10. Schematic Diagrams 11. PCB Layout Diagrams

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1. Precautions and Safety Notices
1.
1.

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

2.

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

3.

POWER SUPPLY REQUIREMENTS The external power converter for this display utilizes AC and DC cords , AC cord is detachable , but DC cord is permanently attached . Any attempt to replace another adapter could result in serious problem on the display .

4.

LEAKAGE CURRENT HOT CHECK 4-1 Plug the AC cord directly into the AC outlet. Do not use an isolation transformer during this check. 4-2 Connect a 1500 ohm , 10 watt resistor , paralleled by a 0.15uF capacitor between each metallic part and a good earth ground 4-3 Use an AC voltmeter with 1000 ohm / volt or more sensitivity and measure the AC voltage across the combination 1500 ohm resistor and 0.15uF capacitor. 4-4 4-5 4-6 Move the resistor connection to each exposed metallic part and measure the voltage. Reverse the polarity of the AC plug in the AC outlet and repeat the above measurement. 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 .

AC VOLTMETER

V
0.15u .

To Metal Parts

1500

10W

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 Test Image Size Contrast and Brightness Controls 1440x900 @ 60Hz Full Size Factory Default: Contrast = 80%, Brightness = 100%

2. SIGNAL INTERFACE Video Interface Input Connector (refer the appendix A) Default Input Connector Video Cable Strain Relief Video Cable Connector DB-15 Pin out Video Signals Video Impedance Maximum PC Video Signal Maximum Mac Video Signal Sync Signals DDC/CI Sync Compatibility Video Compatibility D-Sub = DB-15 (Analog) D-Sub Equal to twice the weight of the monitor for five minutes Compliant DDC1/2B Video RGB (Analog) Separate Sync / SOG / Composite 75 Ohms (Analog) 950 mV with no damage to monitor 1250 mV with no damage to monitor TTL N/A Separate Sync / Composite Sync / SOG Shall be compatible with all PC type computers, Macintosh computers, and after market video cards 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, Not compatible with interlaced video

Resolution Compatibility

Exclusions

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3. Power
Internal Power Supply Input Voltage Range Input Frequency Range Short Circuit Protection Over Current Protection Leakage Current Efficiency Fuse Power Dissipation Max Input AC Current Inrush Current (Cold Start) Power Supply Cold Start Power Supply Transient Immunity Power Supply Line Surge Immunity Delta EADP-45AF BF 90 to 264 VAC 47.5 to 63 Hertz Output can be shorted without damage 5.0 A typical at 12.0 VDC 0.75mA (Max) at 264VAC / 50Hz 75 % (min.) Internal and not user replaceable 45 Watts (typ) 1.2 Arms @ 90VAC, 0.7 Arms @264VAC 60 A (max) @ 115VAC 90A(Max)264VAC Shall start and function properly when under full load, with all combinations of input voltage, input frequency, and operating temperature. Shall be able to withstand an ANSI/IEEE C62.41-1980 6000V 200 ampere ring wave transient test with no damage. Shall be able to withstand 1.5 times nominal line voltage for one cycle with no damage. Shall be able to function properly,without reset or visible screen artifacts, when cycle of AC power is randomly missing at nominal input. 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. VESA DPMS Signaling On Mode < 40 W (Typ) / 36 W (max) Active Off < 1 W On Mode = N/A, Active Off < 5 sec

Power Supply Missing Cycle Immunity

Power Supply Acoustics

Power Saving Operation(Method) Power Consumption Recovery Time

4. ELECTRICAL REQUIREMENTS Horizontal /Vertical Frequency Horizontal Frequency Vertical Refresh Rate Maximum Pixel Clock Sync Polarity Timing Table
Digital - TMDS Item Timing Separated KHz Analog Composite SOG For Separated Sync, Switch 2 640 x 400 @ 70 Hz, 31.5 KHz [email protected] and [email protected] by [AUTO]+[MENU] short cut key (primary = [email protected])

31 81 kHz 50 75 Hz. 140 MHz Independent of sync polarity.

Remark

1

640 x 350

@ 70 Hz, 31.5

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3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

640 x 480 640 x 480 640 x 480 640 x 480 720 x 400 800 x 600 800 x 600 800 x 600 800 x 600 832 x 624

@ 60 Hz, 31.5 @ 67 Hz, 35 @ 72 Hz, 37.9 @ 75 Hz, 37.5 @ 70 Hz, 31.5 @ 56 Hz, 35.1 @ 60 Hz, 37.9 @ 72 Hz, 48.1 @ 75 Hz, 49.6 @ 75 Hz, 49.7

KHz KHz KHz KHz KHz KHz KHz KHz KHz KHz KHz KHz KHz KHz KHz KHz KHz KHz KHz KHz KHz





1024 x 768 @ 60 Hz, 48.4 1024 x 768 @ 70 Hz, 56.5 1024 x 768 @ 72 Hz, 58.1 1024 x 768 @ 75 Hz, 60 1152 x 864 @ 75 Hz, 67.5 1152 x 870 @ 75 Hz, 68.7 1280 x 1024 @ 60 Hz, 64 1280 x 1024 @ 75 Hz, 80 1280 x 960 @ 60 Hz 59.7 1440 x 900 @ 60 Hz, 55.9 1440 x 900 @ 75 Hz, 70





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-TouchTM 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 Type Active Size Pixel Arrangement Pixel Pitch Glass Treatment # of Backlights Backlight Life Luminance (Center)
CT = 6500K, Contrast/ Brightness = Max

Hannstar HSD190MGW1-A00 Active Matrix TFT 19.1"w RGB Vertical Stripe 0.2835mm x 0.2835mm Anti-Glare 4 CCFL 50000 Hrs (Min)@6.5mA 300 cd/m2 (Typ after 30 minute warm up) 240 cd/m2 (Min after 30 minute warm up) 75% (min) 700 :1 (Typ) 450 : 1 (Min) 16.2 million colors (6-bit+FRC panel) 150 degrees (Typ) @ CR>10 130 degrees (Min) @ CR>10 140 degrees (Typ) @ CR>10 120 degrees (Min) @ CR>10 On/Off Typical = 5 ms (Tr = 1.5 ms; Tf = 3.5 ms) Maximun = 10 ms (Tr = 3ms; Tf = 7ms) 3.5 mg per lamp Please see Panel Quality Specifications.

Brightness Uniformity Contrast Ratio Color Depth Horizontal Viewing Angle Vertical Viewing Angle Response Time 10%-90% @ Ta=25C Mercury Panel Defects

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2nd Source Panel Model number Type Active Size Pixel Arrangement Pixel Pitch Glass Treatment # of Backlights Backlight Life Luminance (Center)
CT = 6500K, Contrast/ Brightness = Max

Hannstar HSD190MGW1-A02 Active Matrix TFT 19.1"w RGB Vertical Stripe 0.2835mm x 0.2835mm Anti-Glare 4 CCFL 50000 Hrs (Min)@6.5mA 300 cd/m2 (Typ after 30 minute warm up) 240 cd/m2 (Min after 30 minute warm up) 75% (min) 700 :1 (Typ) 450 : 1 (Min) 16.2 million colors (6-bit+FRC panel) 150 degrees (Typ) @ CR>10 130 degrees (Min) @ CR>10 140 degrees (Typ) @ CR>10 120 degrees (Min) @ CR>10 On/Off Typical = 5 ms (Tr = 1.5 ms; Tf = 3.5 ms) Maximun = 10 ms (Tr = 3ms; Tf = 7ms) 3.5 mg per lamp Please see Panel Quality Specifications.

Brightness Uniformity Contrast Ratio Color Depth Horizontal Viewing Angle Vertical Viewing Angle Response Time 10%-90% @ Ta=25C Mercury Panel Defects

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6. MECHANICAL. Dimension (Desktop) Width Height (Height adjust to the bottom) Depth Monitor Weight *Refer to Figure 1 Dimension (Head Only / Wall Mount) Width Height Depth Monitor Weight *Refer to Figure 1 Ergonomics Tilt Up Tilt Down 7. ENVIRONMENTAL Operating Temperature : 0C to +40C Storage Temperature : -20C to +60C Operating Relative Humidity : 20% to 90% RH Non-Condensing Storage Relative Humidity : 5% to 90% RH Non-Condensing Operating Altitude : 0 to +3,000 meters Storage Altitude : 0 to +12,000 meters 20 From 0 down to -3 ~ -5 446mm (17.6") 292mm (11.5") 66.6mm (2.6") 4.0 Kg (8.8 lbs) 446mm (17.6") 364mm (14.3") 213.6mm (8.4") 4.4Kg (9.7 lbs)

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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, 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 original factory settings if the display is operating in a factory Preset Timing Mode listed in this user guide. H. Exit allows you exit the OSD menu, press button [Menu]. with a"15 second" setting,

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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 active. 2. CONNECTORS 2.1 AC inlet : CEE7-7 typed connector 2.2 Audio : Line-in,
AJ1 1 5 4 3 2

PHONE JACK 5P (ZD005D100)

Line-in receptacle (Line-in receptacle is green) 2.3 Video signal connector for analog input: 15P Mini D-Sub
16 CN1 11 12 13 14 15

1 6 2 7 3 8 4 9 5 10 17

PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

MNEMONI SIGNAL RV GV BV NC GND RG GG BG +5V SG NC SDA HS VS SCL Red Video Green Video Blue Video None Ground(DDC return) Red GND Green GND Blue GND +5V (for DDC) Sync GND None DDC Data Horizontal Sync Vertical Sync DDC Clock
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VGA

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3. ELECTRICAL SPECIFICATIONS 3.1 Standard Testing conditions
Display Area Video Signal Contrast Brightness Ambient Input Warming up Display 408.24(H) x 255.15(V) mm 0.7Vpp Default Default 25 +/- 5 C AC230V+/-10%@50HZ > 30 min 1400 x [email protected]

3.2 POWER
3.2.1 Power supply Input voltage Power frequency Input current 90~264Vac 47~63Hz <[email protected] <0.7 Arms @264Vac Inrush current Power consumption 3.2.2 Power Management State On Standby off Power <40Watts < 1Watts <1Watts Indicator Green Amber Dark 90A(Max) @ 264Vac(cold start) 40W(MAX)

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 3.4.2 3.4.3 Video Signal level: 0.7Vp-p Video signal. Sync Signal level H/V Separate: TTL level 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 10 | 1F 3E 01 01 01 01 01 10 01 20 | 08 29 1A 78 2E 9B B6 A4 53 30 | 9D 24 14 4F 54 BF EF 80 95 40 | 95 0F 81 80 81 40 71 4F 01 50 | 01 01 01 01 9A 29 A0 D0 51 60 | 22 30 50 98 36 00 98 FF 10 70 | 00 1C 00 00 00 FF 00 51 48 80 | 30 36 30 31 30 30 30 30 31 90 | 00 00 00 FD 00 38 4B 1F 50 100 | 00 110 | 00 120 | 0A 0A 20 20 20 20 20 20 00 FC 00 51 31 39 77 62 2D 20 20 20 20 20 00 98 63 03 4B 00 01 84 00 5A 0A 0E 00 33

______________________________________________________________________ (08-09) ID Manufacturer Name ________________ = VSC (11-10) Product ID Code _____________________ = 3E1F (12-15) Last 5 Digits of Serial Number ______ = Not Used (16) (17) Week of Manufacture _________________ = 01 Year of Manufacture _________________ = 2006

(10-17) Complete Serial Number ______________ = See Descriptor Block (18) (19) (20) EDID Version Number _________________ = 1 EDID Revision Number ________________ = 3 VIDEO INPUT DEFINITION: Analog Signal 0.700, 0.300 (1.000 Vp-p) Separate Syncs (21) (22) (23) (24) Maximum Horizontal Image Size ________________ Maximum Vertical Image Size __________________ Display Gamma ________________________________ Power Management and Supported Feature(s): = = = 410 mm 260 mm 2.20

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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 Refreshed Mode: Non-Interlaced Vertical Image Size: 255 mm Normal Display - No Stereo

Horizontal: Active Time: 1440 pixels Blanking Time: 464 pixels
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Sync Offset: 80 pixels Border: 0 pixels

Sync Pulse Width: 152 pixels Frequency: 55.93 KHz

Vertical: Active Time: 900 lines Sync Offset: 3 lines Border: 0 lines Blanking Time: 34 lines Sync Pulse Width: 6 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) (127) No Extension EDID Block(s) 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, single-landed design with ground and ground planes provided. The VGA cable is a signal 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-LF-1. The TSUM16AK-LF-1 is a graphics processing IC for LCD monitor. It provides all key IC control 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.
Pin number 23 24 25 26 27 28 29 30 31 35 69 78 21 36 37 65 66 a) Clock Generation : Pin name GPIO_P00/SAR1 GPIO_P01/SAR2 GPIO_P02/SAR3 GPIO_P03 GPIO_P06 GPIO_P07 PWM0/GPIO_P26 GPIO_P13 GPIO_P14 GPIO_P16/PWM2 GPIO_P15/PWM0 PWM2/GPIO_P24 PWM1/GPIO_P25 DDCD_SDA DDCD_SCL DDCA_SDA/RS232_TX DDCA_SCL/RS232_RX Key-Menu Key-Sel/Auto Key-Power on/off Key-Right Key-Left Key-Down(NC) Key-Up(NC) LED-Green LED-Orange Audio-MUTE(NC) Audio-Stby-Power Audio-Volume Backlight-adi SDA-VGA (Debug) SCL-VGA (Debug) SDA(Debug) SDA(Debug) Pin function

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

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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 Red + Red Green + Green Blue + Blue d) OSD :

Pin Number 59 58 56 55 54 53

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 outputs VDDCTRL_2 and on_backlight( Pin74 and Pin20) to control LCD power sequencing once data and control signals are 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 average 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 6.3

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

Input

Operation Input Voltage Range Rated Input Voltage Max Input AC Current Brightness Voltage(Vadj) On/Off Voltage

90~260 Vac,47~63Hz 100~240 Vac,50/60Hz < 2A 0.3Vdc(Max) ~ 3.0Vdc(Min) High(3.3Vdc)/Low(0Vdc) 12V/2.1A Output : 11.4Vdc ~ 15.1Vdc 5V/3.0A Output : 4.94Vdc ~ 5.46Vdc

Output

Static Output Characteristics

6.2.2 Inverter output characteristics. OUTPUT Rated Output Strike-on Voltage Rated Output Voltage Rated Output Frequency Rated Output Current 1800~2000Vrms 680Vrms @ 6.5mArms 40~80KHz 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. 2. 3. Room temperature With full-white screen , RGB , black pattern with cycled display modes.

2.

Test display modes

Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

Timing 640 x 350 @ 70Hz, 31.5kHz 640 x 400 @ 70Hz, 31.5kHz 640 x 480 @ 60Hz, 31.5kHz 640 x 480 @ 67Hz, 35.0kHz 640 x 480 @ 72Hz, 37.9kHz 640 x 480 @ 75Hz, 37.5kHz 720 x 400 @ 70Hz, 31.5kHz 800 x 600 @ 56Hz, 35.1kHz 800 x 600 @ 60Hz, 37.9kHz 800 x 600 @ 75Hz, 46.9kHz 800 x 600 @ 72Hz, 48.1kHz 832 x 624 @ 75Hz, 49.7kHz 1024 x 768 @ 60Hz, 48.4kHz 1024 x 768 @ 70Hz, 56.5kHz 1024 x 768 @ 72Hz, 58.1kHz 1024 x 768 @ 75Hz, 60.0kHz 1152 x 864 @ 75Hz, 67.5kHz 1152 x 870 @ 75Hz, 68.7kHz 1280 x 1024 @ 60Hz, 63.4kHz 1280x 1024 @ 75Hz, 79.97kHz 1440x 900 @ 60Hz, 59.9kHz 1440x 900 @ 75Hz, 75kHz

Analog Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

Digital No No No No No No No No No No No No No No No No No No No No No No

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3.

Test pattern

Item 1 2

Test condition Frequency & performance Monitor saturation

Pattern Cross-hatch pattern 16-gray scale pattern

Specification No noise is allowed, all colors must be clear 3 to 4 levels must be saturated when brightness and contrast are set to 100%

Remark Pattern 1 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 7. 8.

Full black 5-cycle pattern 1-dot pattern

Full black 5-cycle pattern 1-dot pattern Check the BU Check the flicker

Pattern 7 Pattern 8 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.
button to

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

Press the [<] button to highlight the previous item or the [>] 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 [>] next item. English, French... Option Press the [Menu] button to select the language.

button to highlight the

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 [>] next item. ON,OFF select Press the [Menu] button to select the ON/OFF. button to highlight the

(6) Reset Page: Press the [Menu] button to enter the reset page. Press the

[AUTO] button to exit the page.
button to

Press the [<] button to highlight the previous item or the [>] 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 its 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 button to enter Burn Mode. [Menu]

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.

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1. Move the monitor our from carton

series de-assembling procedure
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 tape & 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

Face-up

5. Put all accessories into carton
Power cable & Audio cable

6. Seal the monitor

Base

VGA cable MANUAL+CD

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6. Troubleshooting Flow Chart
1.No power
No Power

Check Power Module Output CN101 Pin 5,6 = 5V?

NO Change Power Board

OK Check Scalar Module Output CN4 Pin 5,6 = 5V? NO Change Cable From(Power module)CN101 to (Scalar/B)CN4

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

NO

Check Cable Open? NO

YES Change Cable

Change Switch or Button Board

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2.No Characters , Missing one color

No Characters or Missing one color NO Check CN4 5V Output Change Power Board

OK Check R101 , 1.8V output Change Power Board OK Check R98 , 3.3V output Check Inverter From Power board OK? OK Check CN7 to Panel Signal Output OK NO Check or Change Cable or Panel OK Change VGA Cable NO Check H,V SYNC? Check X'Tal 14.318Mhz NO Change X1 NO Check or Change U3 NO Check or Change Q5

NO

OK Change U4

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3.No Audio

No Audio

Check Input source or Change AJ1 U3

NO

Check Input Signal AJ1 OK?
OK

Check ACN1 to Speaker OK?
OK

NO

Change Speaker or ACN1(Cable)

Change AQ1

NO

Check AU1(pin6) Volume and AQ1 OK?

Check AU1(pin12)Mute,(pin11) Stby

Change AU1 or AQ2 or AQ3

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7. Recommended Spare Parts List
RECOMMENDED SPARE PARTS LIST (Q19wb-3)
ViewSonic Model Number: VS11578 Serial No. Prefix: QHZ
Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Accessories: PC Board Assembly: Cabinets: Description Power Cord - B 1.8M SP-035/10A Power Supply Board - EADP-45AF 90~240V Main Board - L9F-A2 (W9ZA-L2 M16AK-LF-1) Control Board (Button Board L0ZJ-A1) Hinge Cover - W9E-A1 Front Panel - W9V-Q2 Cover - W9C-B1 Base Assembly - L7C-A3 Audio Cable - (ST,1.8M) VGA Cable (15/15P,1.8M) MB-LCD Cable LVDS(30P,140MM,LINKTEC) User's Guide LCD Panel 19" HSD190MGW-A02 5ms LCD Panel 19" HSD190MGW-A00 5ms Speaker L9F(X05015N-002) 1.5Wx2 Bracket - Left -HSD W9ZA-A1 Bracket - Right -HSD W9ZA-A1 Screw - F3.0*6.0-T(MC) Screw - M 4.0* 10-T(MC) LCD Film W9V Generic Foam Set Generic Box PE Bag Craft Box Craft Foam - Right Craft Foam - Left Stand - W9C-A1 ECR/ECN ViewSonic P/N A-PC-0106-0224 B-00008124 B-00008125 B-00008126 C-00008150 C-00008151 C-00008152 C-00008153 CB-00004149 CB-00008044 CB-00008048 DC-00008140 E-00008051 E-00008072 E-00008097 HW-00008026 HW-00008027 HW-00008028 HW-00008029 M-00008032 P-00001347 P-00002515 P-00004159 P-00008150 P-00008151 P-00008152 PL-00008035 Ref. P/N DM333181G97 AS05B520037 21L9F0MB0D3 23L0ZJBB050 EBW9E002010 34W9V0LB018 25W9C0LC012 38L7C0BS003 DD0L0TPC007 DD0L7WPC001 DDM0TWLC001 HGW9V002010 AA90MGW1024 AA90MGW1059 DN005015S08 FBW9ZA11013 FBW9ZA10017 MF30060TJB2 MS40100T138 JXW9V001010 30833 20653 HAL0T002019 HFW9V002019 HBW9ZA04017 HBW9ZA03011 26W9ZCSA006 Location

Rev: 1a
Universal number#

Cables:

Documentation: Electronic Components: Hardware:

AUO

Miscellaneous: Packing Material:

Plastics:

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.

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BOM LIST (Q19wb-3)
ViewSonic Model Number: VS11578 Rev: 1a Serial No. Prefix: QHZ
Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 ViewSonic P/N N/A B-00008125 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A B-00008126 N/A N/A N/A N/A B-00008124 C-00008151 N/A N/A N/A N/A N/A M-SCW-0824-0726 N/A M-SCW-0824-6799 N/A N/A M-SCW-0824-6761 N/A M-MS-0808-8986 N/A N/A N/A C-00008152 N/A N/A PL-00008035 N/A N/A N/A HW-00008029 M-SCW-0824-0727 M-SCW-0824-6761 N/A N/A C-00008150 CB-00008048 N/A E-00008097 N/A N/A N/A E-00008051 N/A HW-00008026 N/A N/A N/A N/A HW-00008026 N/A N/A E-00008072 N/A HW-00008026 N/A N/A C-00008153 CB-00008044 CB-00004149 P-00004159 Ref. P/N 1W9VZQVS046 21L9F0MB0D3 31L9F0SS0C1 CC547X6MD03 CC610X6MD01 CC710X4MD02 CC733L3MD17 DFTJ05FR037 DFDS15FR041 DFDS15FR076 DFHD08FR102 DFHD30MR267 DFHD04MR132 BG614318081 AL007496D02 AL007496D29 DFHD08FR021 23L0ZJBB050 DAL0ZJTB129 BEYG0004ZA1 DEFC2879003 FCL0ZJ01010 AS05B520037 24W9V0LB018 34W9V0LB018 36W9C0PS003 FCL7B001018 FCL7G001016 FCM7T004014 MF30080BBJ5 MF30060TJB2 MM35080BBW2 EBW9E003016 MM30050B241 MM30030IBJ4 MF20025IBJ8 MBLI1004018 GBL9C003019 GBL9C002012 FBW9TB02013 25W9C0LC012 EAW9C002011 FBW9ZA03011 26W9ZCSA006 EAL7C004019 FBW9E003016 DDL70LTH103 MS40100T138 MF30080IBJ0 MM30030IBJ4 FBL7C006012 27W9C0CS003 EBW9E002010 DDM0TWLC001 DDM0TWLC010 DN005015S08 MM40130P000 MM40120FJB8 2AW9V0PTU08 AA90MGW1024 AZW9V0BU008 FBW9ZA11013 FBW9ZA10017 2AW9V0PTU16 AA90MGW1041 AZW9V0BU105 FBW9ZA11013 FBW9ZA10017 2AW9V0PTU24 AA90MGW1059 AZW9V0BU024 FBW9ZA11013 FBW9ZA10017 28W9V0PK011 38L7C0BS003 DD0L7WPC001 DD0L0TPC007 HAL0T002019 Description W9V-Q2 LCD MONITOR(Q19WB-3,USA)GP L9F-A2 M/B ASSY(W9ZA-L2,M16AK-LF-1) GP L9F-A2 M/B S/S ASSY(W9ZA-L2,M16AK-1)GP CAP EC 4.7U50V(+-20%105C.5*11,5K)CXN GP CAP EC 10U 50V(+-20%.105C.5*11,5K)CXN GP CAP EC100U25V(+-20%105C,6.3*11,5K)CXN GP CAP EC DIP 330U16V(+-20%,105C,8*11)LXNGP CONN DIP PHONE JACK 5P FR(J303-1-A-G+)GP CONN D-SUB 15P 3R FR(P1.15,H12.55) GP CONN D-SUB 15P 3R FR(P1.15,H12.55) GP CONN DIP HEADER 8P 2R FR(P2.54,H5.0) GP CONN DIP HEADER 30P 2R MR(P2.0,H4.0) GP CONN DIP HEADER 4P 1R MR(P2.0,H4.1) GP XTALDIP14.318MHZ(+-30PPM,70.C 49/S) GP IC(20P) TDA7496L(DIP) GP IC(20P) UTC TDA7496LK(DIP) GP CONN DIP HEADER 8P 1R FR(P1.0,H3.0)GP L0ZJ-A1 BUTTON/B ASSY(FOR W9C-B1)GP PCB(BUTTON) L0ZJ-A1(2L,126*9,REVB)ID3 GP LED(SMD) Y/G(KPTB-1612NSGC) GP CABLE FFC(8P,287MM,ID3)W9C-B2 GP METAL DOME SWITCH L0ZJ-A1(FCL0ZJ01,3A)GP ADP/INV EADP-45AF BF, 90~264V GP W9V-Q2 LCD BEZEL ASSY GP W9V-Q2 LCD BEZEL SUB ASSY GP W9C-B1 PCB SHIELD ASSY(N/DVI)NEW GP POWER BOARD MYLAR L7B(FCL7B001,REV3A)GP AL FOIL L7G(FCL7G001,REV3A)HAN GP AL FOIL M7T(FCM7T004,REV3A) GP SCREW F3.0*8L,B,NI GP SCREW F3.0*6.0-T(MC)GP SCREW M3.5*8-B (NI,WASHER)GP BEZEL BKT W9E-A1(EBW9E003,REV3A) GP SCREW M3.0*5.0-B BLACK (NYLOK)GP SCREW M3*3-I-NI GP SCREW F2*2.5-I(NI) GP IO NUT LI1(MBLI1004,REV3A)GP GASKET 7*7*0.6T L9C-B1(GBL9C003,R3A)GP GASKET 15*8*0.6T L9C-B1(GBL9C002,R3A)GP GND PLATE-VGA-PANEL W9TB(FBW9TB02,R3A)GP W9C-B1 LCD COVER ASSY GP LCD COVER W9C-B1(EAW9C002,REV3A) GP HINGE BKT W9ZA(FBW9ZA03,REV3A)GP W9ZC-A1 STAND ASSY GP STAND L7C-A1(EAL7C004,REV3C)GP HINGE ASSY W9E-A1(FBW9E003,REV3A) GP CABLE ASSY L70L STAND-HINGE(1P, REV1A)GP SCREW M4.0*10-T(MC)GP SCREW F3.0*8-I(NI)GP SCREW M3*3-I-NI GP GND PLATE L7C-A1(FBL7C006,REV3A)GP W9C-B1 CHASSIS ASSY GP HINGE COVER W9E-A1(EBW9E002,REV3A) GP CABLE MB-LCD(30P,100MM,LG,AU)M0TW GP CABLE LVDS(30P,100MM,LINKTEC,LG)M0TW GP SPEAK ASSY L9F(X05015N-002)1.5W*2 GP SCREW M4.0*13-P(BLACK)GP SCREW M4.0*12-F(BLACK)GP W9V-Q1 PANEL DEPENDENT KIT ASSY(HSD) GP LCD 19"HSD190MGW1-A02 5MS FOR VSC CON GP W9V-Q1 BIOS(HSD190MGW1-A02)TUM16AL 5MS LCD BKT-L-HSD W9ZA-A1(FBW9ZA11,REV3A)GP LCD BKT-R-HSD W9ZA-A1(FBW9ZA10,REV3A)GP W9V-Q2 PANEL DEPENDENT KIT ASSY(HSD) GP LCD 19" HSD190MGW1-A00K(5MS)FOR VSC GP W9V-Q2 BIOS HSD(A00K)TSUM16AK-LF-1 5MS LCD BKT-L-HSD W9ZA-A1(FBW9ZA11,REV3A)GP LCD BKT-R-HSD W9ZA-A1(FBW9ZA10,REV3A)GP W9V-Q2 PANEL DEPENDENT KIT ASSY(HSD-K)GP LCD 19"HSD190MGW1-A00 5MS FOR VSC GP W9V-Q2 BIOS HSD(A00)TSUM16AK-LF-1 5MS LCD BKT-L-HSD W9ZA-A1(FBW9ZA11,REV3A)GP LCD BKT-R-HSD W9ZA-A1(FBW9ZA10,REV3A)GP W9V-Q2 PACKING ASSY GP L7C-A3 BASE SUB ASSY(BLACK)GP CABLE MB-VGA(15P,1.8M)L7E BLACK 5.5 GP CABLE AUDIO(ST,1.8M)BLACK L0T GP PE BAG L0T(HAL0T002,REV3A)GP Location Universal number# Q'ty 1 1 1 8 1 7 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 5 1 1 2 16 2 2 1 1 1 1 1 1 1 1 1 1 4 2 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

C40 C32,C34,C45,C49,C5 3,C54,C58,C97 C15 AC3,AC5,AC9,AC11, C30,C31,C76 AJ1 CN1 CN1 CN4 CN7 ACN1 X1 AU1 AU1 CN8

LED1 CON1

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Item 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93

ViewSonic P/N P-00008151 P-00008152 M-LB-0813-0747 M-LB-0813-0745 M-LB-0813-1042 M-LB-0813-1043 N/A DC-00008140 P-00008150 N/A N/A N/A N/A A-PC-0106-0224 M-00008032

Ref. P/N HBW9ZA04017 HBW9ZA03011 HCL7V004013 HCL7V002011 HCL7V019011 HCL70021011 HCW9V001010 HGW9V002010 HFW9V002019 JXW9C001017 JXW9C002013 HFW9C004019 HFW9C003012 DM333181G97 JXW9V001010

Description END CAP-R W9ZA-A1(HBW9ZA04,REV3A) GP END CAP-L W9ZA-A1(HBW9ZA03,REV3A) GP CORE LABEL(HCL7V004,REV3A)GP SERIAL LEBAL L7V(HCL7V002,REV3A) GP CARTON LABEL L7VC(HCL7V019,REV3B) GP HI-POT LABEL L70L(HCL70021,REV3A)GP ID LABEL W9V-Q1(HCW9V001,R3A) GP MANUAL+CD W9V-Q2(HGW9V002,R3A) GP CARTON W9V-Q2(HFW9V001,R3A) GP HANDLE UPPER W9C-B1(JXW9C001,REV3A)GP HANDLE DOWN W9C-B1(JXW9C002,REV3A)GP SPACE PLATE W9C-B(HFW9C004,R3A) GP SPACE PLATE W9C-A(HFW9C003,R3A) GP PWR CORD B 1.8M SP-305/10A USA GP LCD FILM W9V(JXW9V001,R3A)440*285 GP

Location

Universal number#

Q'ty 1 1 1 1 1 1 1 1 1 1 1 0.036 0.025 1 1

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8. Exploded Diagram and Exploded Parts List

EXPLODED PARTS LIST (Q19wb-3)
ViewSonic Model Number: VS11578 Rev: 1a Serial No. Prefix: QHZ
Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 ViewSonic P/N N/A M-SCW-0824-6761 N/A N/A N/A N/A N/A HW-00008026 E-00008097 E-00008072 N/A N/A B-00008124 M-MS-0808-8986 N/A N/A M-SCW-0824-6799 N/A N/A N/A N/A N/A N/A HW-00008029 N/A N/A HW-00008029 N/A M-SCW-0824-0727 N/A M-MS-0808-9251 C-00008150 M-SCW-0824-0726 N/A N/A N/A CB-00008048 N/A N/A Ref. P/N EAW9V002014 MM30030IBJ4 EBW9V002015 EBW9C002012 23L0ZJBB050 MF20025IBJ8 FBW9ZA10017 FBW9ZA11013 DN005015S08 AA90MGW1059 EBW9E003016 FCL7B001018 AS05B520037 MBLI1004018 21L9F0MB0D3 MF30060TJB2 MM35080BBW2 FAW9C001015 FCL7TA01018 FCL7G001016 FCM7T004014 FBW9ZA03011 EAW9C002011 MS40100T138 FBW9E003016 EAL7C004019 MS40100T138 FBL7C006012 MF30080IBJ0 EAL7C005015 GAL5V002013 EBW9E002010 MF30080BBJ5 MM40120FJB8 MM40130P000 MM30050B241 DDM0TWLC001 DEFC3309006 GBL9C003019 Description LCD BEZEL W9V-Q2 SCREW M3*3-I-NI BUTTON W9V-Q2 LED LENS W9C-B1 L0ZJ-A1 BUTTON/B ASSY SCREW F2*2.5-I(NI) GP LCD BKT-R-HSD W9ZA-A1( LCD BKT-L-HSD W9ZA-A1 SPEAK ASSY L9F)1.5W*2 LCD 19"HSD190MGW1-A00 5MS BEZEL BKT W9E-A1 POWER BOARD MYLAR L7B ADP/INV EADP-45AF BF, 90~264V IO NUT LI1 L9F-A2 M/B ASSY SCREW F3.0*6.0-T(MC)GP SCREW M3.5*8-B (NI,WASHER)GP PCB SHIELD W9C-B1 SHIELDING MYLAR AL FOIL M7G AL FOIL M7T HINGE BKT LCD COVER W9C-B1 SCREW M4.0*10-T HINGE ASSY W9E-A1 STAND L7C-A1 CABLE ASSY L70L STAND-HINGE GND PLATE L7C-A1 SCREW F3.0*8-I(NI)GP BASE L7C-A1 RUBBER FOOT L5VC HINGE COVER W9E-A1 SCREW F3.0*8L,B,NI GP SCREW M4.0*12-F(BLACK)GP SCREW M4.0*13-P(BLACK)GP SCREW M3.0*5.0-B BLACK CABLE MB-LCD CABLE FFC(8P,287MM,ID3)W9C-B2 GASKET 7*7*0.6T L9C-B1 Q'ty 1 17 1 1 1 2 1 1 1 1 1 1 1 2 1 5 1 1 1 2 1 1 1 4 1 1 1 1 2 1 4 1 2 2 2 2 1 1 2

ViewSonic Corporation
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Confidential - Do Not Copy

Q19wb-3

TO PANEL LVDS

CN202

CN203

CN101

CN7 CN4 CN8 Main Board

POWER/B
TO PANEL

&INV./B
CN204

ACN1
CN205

SPK

Button Board
Q19wb-3

CON1

SPK

ViewSonic Corporation

49

Confidential - Do Not Copy

ViewSonic Corporation
50

Confidential - Do Not Copy

Q19wb-3

PACKING PART LIST (Q19wb-3)
ViewSonic Model Number: VS11578 Rev: 1a
Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ViewSonic P/N N/A C-00008153 P-00008152 P-00008151 P-00008150 M-LB-0813-1042 CB-00008044 CB-00004149 A-PC-0106-0224 P-00004159 N/A M-00008032 M-LB-0813-1043 N/A M-LB-0813-0745 Ref. P/N 1W9VZQVS046 38L7C0BS003 HBW9ZA03011 HBW9ZA04017 HFW9V002019 HCL7V019011 DD0L7WPC001 DD0L0TPC007 DM333181G97 HAL0T002019 HGW9V001013 JXW9V001010 HCL70021011 HCW9V001010 HCL7V002011 Location W9V-Q2 LCD MONITOR(Q19WB-3,USA)GP L7C-A3 BASE SUB ASSY(BLACK)GP END CAP-L W9ZA-A1 END CAP-R W9ZA-A1 CARTON W9V-Q2 CARTON LABEL L7VC CABLE MB-VGA(15P,1.8M)L7E BLACK 5.5 CABLE AUDIO(ST,1.8M)BLACK L0T GP POWER CORD SP-30+IS-14 3P 1.8M(USA)B PE BAG L0T MANUAL+CD W9V-Q1 LCD FILM W9V HI-POT LABEL L70L ID LABEL W9V-Q1 SERIAL LEBAL L7V Q'ty 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

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Confidential - Do Not Copy

Q19wb-3

VCC3.3 LC LC LC LC VCC1.8 LC VCC3.3 LC VCC3.3 VCC3.3

VCC3.3

VGA
VDDP RINGIN+ GINBIN+ BINSOGIN H-SYNC V-SYNC AVDD_DVI AVDD_ADC AVDD_MPLL AVDD_PLL VDDC RIN+ LVA0M LVA0P LVA1M LVA1P LVA2M LVA2P LVA3M LVA3P LVACKM LVACKP

9. Block Diagram

ViewSonic Corporation
LVDS Interface
LCD-TFT Module

R+ RGND G+ GGND B+ BGND SOG

HSYNC0

System Block Diagram

VSYNC0

DDC-SDA

DDC-SCL

Scaler
(TSUM16AK-LF-1)

CLK+

LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P LVB3M LVB3P LVBCKM LVBCKP

CLKXIN XOUT

DDCA_SDA DDCA_SCL CLK+ CLK-

CN1

14.318MHz GPIO_P23
SDO CE# SCK SDI DDCROM_SCL DDCROM_SDA PWM0 PWM1

VDDCTRL_2 LCD VDD SWCHING

+5V

SDO

U5

CE#

SCK

Inverter

SDI

(SST25VF010)

GPIO_P25

GPIO_P12

VCTRL

P07

P13

P00

P01

SCL

P02

P26

P14

(24LC16)

RST

LED_ORANGE

SW BOARD

Confidential - Do Not Copy
ON/OFF ADJ

ON BACKLITE

BRIGHTNESS ADJ

U3
(AP1117ELA)

Q5

VCTRL

52
RESET

ON/OFF ADJ

U6

SDA

MENU

SEL

POWER

RIGHT

LEFT

LED_GRN

Q19wb-3

+1.8V

+3.3V

POWER BOARD

+12V

10. Schematic Diagrams
VGA_SDA_O R2 100/6

RED+ IN
DDCA_SDA 5 R3

L1 R1 C2 56/6/1%

CX000300112

C1

0.047uF/6 RED+ 5

16

CN1

C3

0.047uF/6 RED- 5

11

DDC-SDA 12 IN-H IN-V
13 14

DDC-SCL 15
17

1 6 2 7 3 8 4 9 5 10

RED+IN RED-IN GREEN+IN GREEN-IN BLUE+IN BLUE-IN DSUB_5V_O L3 0/6

RED-IN

75/6/1%

NC

R4

100/6/1% L2 CX000300112 C4 0.047uF/6

DSUB_5V

GRE EN+IN
R6

R5 C5

56/6/1%

GREEN+ 5

C6 GREEN-IN VGA_SCL_O R8 100/6 75/6/1% NC R7 100/6/1% C7 R9 470/6

0.047uF/6 GREEN- 5 0.01uF/6 SOGIN 5

VGA

DDCA_SCL 5

BLUE +IN
R11

L4 R10 C9 56/6/1%

CX000300112

C8

0.047uF/6 BLUE+ 5

C10 BLUE-IN 75/6/1% NC R12 100/6/1%

0.047uF/6 BLUE- 5

VCC3.3

IN-H

L5

100/6 R13 R14 1K/6 C11 33pF/6 H SYNC HSYNC 5

1

1

D1 DAN217K/NC

D2 DAN217K/NC C86 0.1uF/6/NC

D3 DAN217K/NC C87 0.1uF/6/NC

1

2.2K/6 C88 0.1uF/6/NC

RED+ IN 3

GRE EN+IN 3

BLUE +IN

3

IN-V R15

100/6 R17 2.2K/6 C12 33pF/6

R16

1K/6

VSYNC

VSYNC 5

2

2

IN -H
1

IN-V
1

VGA _SDA_O
1

2

VGA _SCL_O
1
VCC3.3 D7 DDC_VCC

D4 Z5.6/NC

D5 Z5.6/NC

D6 Z5.6/NC

1

1

1

Z5.6/NC

2

2

2

2

D8 DAN217K/NC RX2-

D9 DAN217K/NC C89 0.1uF/6/NC RX2+ 3

D10 DAN217K/NC C91 0.1uF/6/NC RX1-

D11 DAN217K/NC C90 0.1uF/6/NC RX1+

1

VCC5V

DVI_5V

VCC3.3

3

3

3

C92 0.1uF/6/NC

R111 0/6/NC D32 BAT54C-GS08 DDC_VCC DDCD_SCL DDCD_SDA C101 0.1uF/6

U7

24C02

2

2

2

CN3 R117 220/6/NC RX2RX2+ R18 R19 10/6 10/6

25

RX2RX2+ GND RX4RX4+ SCL SDA VS RX1RX1+ GND RX3RX3+ 5V GND HP RX0RX0+ GND RX5RX5+ GND RXC+ RXC-

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

R- 5 R+ 5

C

2

8 7 6 5

VCC WP SCL SDA

A0 A1 A2 GND

1 2 3 4

Q13

R104

B E

4.7K/6/NC

HPD_Ctrl

5

DDC_VCC DDC_VCC

SCL-DD DC SDA-DDDC
R118 220/6/NC RX1RX1+ DVI_5V R119 R26 10K/6 RX0RX0+ R27 R28 10/6 10/6 220/6/NC R22 R23 10/6 10/6

PMBS3904/NC R20 R21 10K/6

G- 5 G+ 5 SCL-DD DC R24 SDA-DDDC R25
100/6 100/6

10K/6

DDCD_SCL 5 DDCD_SDA 5

1

B- 5 B+ 5
2

D12 Z5.6/NC

1
D13 Z5.6/NC

R120 220/6/NC RXC+ RXCVCC3.3 C13 0.1uF/6NC R29 R30 10/6 10/6 R106 R107

CLK+ 5 CLK- 5

10K/6/NC 10K/6/NC D17 DAN217K/NC C94 0.1uF/6/NC RXC- 3

1

1

1

D14 DAN217K/NC RX0-

D15 DAN217K/NC C93 0.1uF/6/NC RX0+ 3

D16 DAN217K/NC C95 0.1uF/6/NC RXC+

3

3

C96 0.1uF/6/NC

26

1

2

DVI-I
2

ViewSonic Corporation
Model Title Date

2

2

2

VGA & DVI Input
Rev:

ViewSonic Corporation

53

Confidential - Do Not Copy

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VCC3.3

VDVI VMPLL VPLL AVDD

VDDP

VDDC R103 NC C100 0.1uF/6 VCC3.3 FB1 CX201209813 VCTRL LVA3P LVA3M LVACKP LVACKM LVA2P LVA2M LVA1P LVA1M LVA0P LVA0M NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC LVB3P LVB3M LVBCKP LVBCKM LVB2P LVB2M LVB1P LVB1M LVB0P LVB0M NC NC NC NC NC NC NC NC NC NC NC GPIO_P22 GPIO_P23 GPIO_P16 GPIO_P15 PWM2/GPIO_P24 GPIO_P27/PWM1 GPIO_P12 PWM1/GPIO_P25 GPIO_P17/SAR0 GPIO_P00/SAR1 GPIO_P01/SAR2 GPIO_P02/SAR3 GPIO_P03 GPIO_P06 GPIO_P07 PWM0/GPIO_P26 GPIO_P13 GPIO_P14 DDCROM_SCL DDCROM_SDA 11 105 106 107 108 109 110 111 112 113 114 98 99 100 101 89 90 91 92 93 94 9 10 15 16 17 18 2 3 5 6 7 8 118 119 120 121 122 123 124 125 126 127 128 1 80 81 88 87 86 85 84 83 82 75 74 35 69 78 79 20 21 22 23 24 25 26 27 28 29 30 31 77 76 VCC3.3 C61 R72 10K/6 R73 10K/6 R74 R75 R109 10K/6 WP 100/6 100/6 R110 0/6/NC 8 7 6 5 0.1uF/6 U6 VCC WP SCL SDA 24C16 A0 A1 A2 GND 1 2 3 4 MENU SEL P WR RIGHT LEFT DOWN UP LED_G LED_R R108 100/6 WP VDDCTRL_2 7 R105 MUTE 8 STBY 8 VOLUME 8 on_BACKLIGHT 6 adj_BACKLIGHT 6 R60 C60 82K/6 0.1uF/6 R61 10K/6 LED_R LED_G R70 4.7K/6 Q6 R71 PMBS3906 4.7K/6 Q7 PMBS3906 R62 10K/6 33K/6 33K/6 33K/6 33K/6 33K/6 33K/6 33K/6 MENU SEL P WR RIGHT LEFT DOWN UP L10 L11 L12 L13 L14 L15 L16 L17 L18 C63 C65 C66 C67 C64 C68 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 1K/6/1% 1K/6/1% 1K/6/1% 1K/6/1% 1K/6/1% 1K/6/1% 1K/6/1% 100/6/1% 330/6/1% MENU_O SEL_O P WR_O RIGHT_O LEFT_O DOW N_O UP_O LED_R_O LED_R_G CN6 10 9 8 7 6 5 4 3 2 1 R63 R64 R65 R66 R67 R68 R69 VCC3.3 VCC3.3 LVB3P 7 LVB3M 7 LVBCKP 7 LVBCKM 7 LVB2P 7 LVB2M 7 LVB1P 7 LVB1M 7 LVB0P 7 LVB0M 7 VCTRL 6 LVA3P 7 LVA3M 7 LVACKP 7 LVACKM 7 LVA2P 7 LVA2M 7 LVA1P 7 LVA1M 7 LVA0P 7 LVA0M 7 C34 10uF/50V + VDDP

R51 CN5 1 2 3 4 JWT-A2001WV2-04/NC 4 DDCA_SDA 4 DDCA_SCL 10K/6

R52 10K/6 4 4 4 4 4 4 4 4 4 RED+ REDGREEN+ GREENSOGIN BLUE+ BLUEHSYNC VSYNC

U4

AVDD_DVI AVDD_DVI

VDDP VDDP VDDP VDDP VDDP

14 67 95 103 115

AVDD_PLL

59 58 56 55 57 54 53 63 64 65 66 39 40 42 43 45 46 48 49 36 37

RIN0P RIN0N GIN0P GIN0N SOGIN0 BIN0P BIN0N HSYNC0 VSYNC0 DDCA_SDA DDCA_SCL

AVDD_MPLL AVDD_MPLL

AVDD_ADC

VDDC VDDC VDDC VDD_OTP

12 97 117 68

44 50

4 34

52

60

C35 C36 C37 C38 C39 0.1uF/6 0.1uF/6 0.1uF/6 0.1uF/6 0.1uF/6 VCC1.8 FB2 VDDC

CX201209813 C40 4.7uF/50V + C41 C42 C43 C44 0.1uF/6 0.1uF/6 0.1uF/6 0.1uF/6

4 4 4 4 4 4 4 4 4 4

R+ RG+ GB+ BCLK+ CLKDDCD_SDA DDCD_SCL

RX2P RX2N RX1P RX1N RX0P RX0N RXCKP RXCKN DDCD_SDA DDCD_SCL

VCC3.3 FB3

VDVI

CX201209813 C45 10uF/50V

+

AVDD

R53 C98 1uF/8

390/6/1% C48 0.1uF/6

51 62 61

REXT REFP REFM

C46 C47 0.1uF/6 0.1uF/6

C97 10uF/50V VCC3.3 U5 5V C52 C53 10uF/50V 0.1uF/6 8 7 3 4 VDD HOLD# WP# VSS

VCC3.3 FB4

VMPLL

TSUM16AK-LF-1
SDO CE# SCK SDI 2 1 6 5 70 71 72 73 SDO SCZ SCK SDI

CX201209813 C49 10uF/50V

+

C50 C51 0.1uF/6 0.1uF/6

SST25VF512A 19 R54 10K/6 C56 22pF/6 32 XIN RST

VCC3.3 FB5

AVDD

CX201209813 C54 10uF/50V

+

2006/03/13 ADD

X1 14.318MHZ C57 22pF/6 33 XOUT

C55 0.1uF/6 VCC3.3 FB6 VCC3.3 VCC5V CX201209813 C58 10uF/50V + VPLL CN8 MENU_O SEL_O P WR_O RIGHT_O LEFT_O LED_R_O LED_R_G 8 7 6 5 4 3 2 1 7101-E08N

VCC3.3 R55 R56 NC NC 102 104

MODE[0] MODE[1]

10K/6 HPD_Ctrl 4 R57 68K/6

C59 0.1uF/6

R58 10K/6

R59 10K/6

13 38 41 47 96 116

GND GND GND GND GND GND

C62

4501-10-10P-R/NC

TO BUTTON BOARD
0.1uF/6 0.1uF/6 0.1uF/6 0.1uF/6 0.1uF/6 0.1uF/6 0.1uF/6 VCC3.3 1 D30

Add WP Control Avoid data losing.

VCC3.3 1 D25

VCC3.3 1 D26

VCC3.3 1 D27

VCC3.3 1 D28

VCC3.3 1 D29

VCC3.3 1 D31

3

RIGHT_O

3

LEFT_O

3

P WR_O

3

MENU_O

3

SEL_O

3

UP_O

3

DOW N_O

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Model Title Date

2

2

2

2

2

2

2

DAN217K/NC

DAN217K/NC

DAN217K/NC

DAN217K/NC

DAN217K/NC

DAN217K/NC

DAN217K/NC

SCALER
Rev:

ViewSonic Corporation

54

Confidential - Do Not Copy

Q19wb-3

CN4 VCC12 1 3 5 7 2 4 6 8

C14 0.1uF/6

C15 100uF/25V

VCC5V

VCC3.3

VCC3.3

R31 10K/6 R100 C18 1uF/8 1 0/6 3

R32 10K/6

Q4 PMBS3904 2 R36 1K/6 on_BACKLIGHT 5 VCC3.3 C99 0.1uF/NC Q8 B E CHT2907APT R48 47/6 C VCC1.8 + C32 10uF/50V D23 C LL1N4148PT Q5 E CHT2907APT R49 2K/6 VCTRL 5

R38 1K/6 R41 C24 3 1uF/8/NC Q2 PMBS3904 2 R43 2K/6 adj_BACKLIGHT 5 0/6

B

1

D24 LL1N4148PT R50 DSUB_5V DVI_5V R95 VCC5V D21 ML25PT 5V L9 CX121A50006/1206 + C30 330uF/16V 3 1 0/6 R96 0/6/NC 3 D22 BAT54C-GS08 1 VIN VOUT 2 4 U3-A 100/6/1% VCC3.3

ADJ/GND OUT

AP1117ELA/TO252/NC U3 2 4

0.8A Max

VCC3.3

VIN

VOUT

ADJ/GND OUT

R46 200/6/1%

AP1117ELA/TO223 R47 330/6/1%

+ C31 330uF/16V

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POWER
Rev:

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Q19wb-3

VCC5V

R77 0/8 Q9 AO3415L 1 1 R80 82K/6 C73 2200pF/6 2 3 2 1 R81 10K/6 2 1 LCDVCC LCDVCC C75 0.1uF/6 C76 330uF/16V 5 LVB0M 5 LVB1M 5 LVB2M 5 LVBCKM 5 LVB3M 5 LVA0M 5 LVA1M 5 LVA2M 5 LVACKM 5 LVA3M LVB0M LVB1M LVB2M LVBCKM LVB3M LVA0M LVA1M LVA2M LVACKM LVA3M RXO0RXO1RXO2GND RXOCRXO3RXE0GND RXE1RXE2RXECRXE315GND LCDVCC R99 0/6/NC VDDCTRL_2 5 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 CN7 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 RXO0+ RXO1+ RXO2+ GND RXOC+ RXO3+ RXE0+ GND RXE1+ RXE2+ RXEC+ RXE3+ POL LCDVCC LCDVCC LVB0P LVB1P LVB2P LVBCKP LVB3P LVA0P LVA1P LVA2P LVACKP LVA3P LVB0P 5 LVB1P 5 LVB2P 5 LVBCKP 5 LVB3P 5 LVA0P 5 LVA1P 5 LVA2P 5 LVACKP 5 LVA3P 5 LCDVCC R83 3.6K/NC

C74 2200pF/6 1

2

D
R85 82K/6 3

3
VCC3.3

Q11 CHDTC144EUPT 2

G2

1

S

R86 10K/6

2

R87 1.2K/6/NC

C
1

3 1

B

2

E
1 Q12 SN7002E/NC 2 2 3

2006/03/14 ADD FFC FPE Connector

GND GND

R102 0/6 CN9 LCDVCC 15GND 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1

5 LVA3P 5 LVA3M 5 LVACKP 5 LVACKM 5 LVA2P 5 LVA2M 5 LVA1P 5 LVA1M 9 8 7 6 5 LVA0P 5 LVA0M 5 LVB3P 5 LVB3M 5 LVBCKP 5 LVBCKM 5 5 5 5 5 5 LVB2P LVB2M LVB1P LVB1M LVB0P LVB0M

LVA3P LVA3M LVACKP LVACKM LVA2P LVA2M LVA1P LVA1M LVA0P LVA0M LVB3P LVB3M LVBCKP LVBCKM LVB2P LVB2M LVB1P LVB1M LVB0P LVB0M

H1 2 3 4 5 1 9 8 7 6 2 3 4 5

H2 1

MTH276D126 H3 2 3 4 5 1 9 8 7 6

MTH276D126

FFC 30PIN PH=1.0 (MS240430)/NC

32 31

MTH276D126

32 31

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PANEL
Rev:

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Q19wb-3

+12V_A

+12V_A AR1 10K/6 AR2 10K/6 AR3 AC1 1uF/8 1K/6 AR4 4.7K/6 VOLU AL1

VCC12 CX201209813

3 5 VOLUME AR5 2 2K/6 1 AQ1 PMBS3904

+12V_A AL2 CX201209813 AC2 0.1uF/6 15 16 AU1 AL3 CX201209813 1 2 Z0415 1 2 Z0416 AL4 CX201209813 AC3 330uF/16V

PC AUDIO-IN
AJ1 1 5 4 3 2 L_LINE R_LINE AC7 220pF/6

AGND

VS

AR6 AR7

100/6 100/6

LIN_PC RIN_PC

AC4 AC6

0.47uF/6 0.47uF/6

4 9

INL INR

VS

AGND 17 5 AR8 CX201209813 CX201209813 AC5 SPKOUTL 330uF/16V ACN1 1 2 3 4

OUTL VAROUT_L

AC8 220pF/6

R91 20K/6

R92 20K/6

VOLUME

6

VOLU

AR9

VCC3.3 AGND R93 10K/6

+12V_A AR10 10K/6

AGND

11 12 10 AC11 330uF/16V AR11 10K/6 AC10 0.1uF/6

STBY MUTE SVR

VAROUR_R OUTR GND GND GND GND GND GND GND

7 14 AC9 SPKOUTR 330uF/16V AL5 CX201209813

5 MUTE

AR14

1K/6

AQ2

PMBS3906 VCC3.3 +12V_A AGND R94 10K/6 AR15 1K/6 AQ3 PMBS3906 AR13 10K/6 AR12 10K/6 AGND

TDA7496L

1 2 3 13 18 19 20

AGND AL6 CX201209813

AGND

AGND

GND AL7 CX201209813

5 STBY

AGND

GND

AGND

AGND

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AUDIO
Rev:

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Q19wb-3

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Model Title Date

AC to DC ADAPTOR
Rev:

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AC to DC ADAPTOR
Rev:

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Q19wb-3

CON1 8 7 6 5 4 3 2 1 MENU SEL PWR RIGHT LEFT AMBER GREEN 10

SW1

SW METALDOME

SW2

SW METALDOME

9

SW3

SW METALDOME

PH=1.0mm 8Pin/NC

SW4

SW METALDOME

SW5

SW METALDOME

3 1

4 2

BLUE

AMBER LED1 KPTB-1612

Orange / Blue : KPTB-1612SEKPBAC Orange / Green : KPTB-1612NSGC
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Metal Dome Button Board
Rev:

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Confidential - Do Not Copy

Q19wb-3

11. PCB Layout Diagrams

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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 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 Excellent Good Fair Bad

B. Are you satisfied with this Service Manual?
Item 1. Service Manual Content 2. Service Manual Layout 3. The form and listing Excellent Good Fair Bad

C. Do you have any other opinions or suggestions regarding this service manual? Reader's basic dada: Name: Company: Add: Tel: 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 ([email protected])

Title:

Fax:

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