ViewSonic VA1930wm-1 Bedienungsanleitung

ViewSonic VA1930wm-1

Model No. VS11354

19” Color TFT LCD Display

(VA1930wm-1_SM Rev. 1a Nov. 2006)

ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA- (800) 888-8583

Service Manual

ViewSonic Corporation Confidential - Do Not Copy VA1930wm-1

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 11/01/2006 Initial Release Jamie Chang

ViewSonic Corporation Confidential - Do Not Copy VA1930wm-1

TABLE OF CONTENTS

1. Precautions and Safety Notices 1

2. Specification 4

3. Front Panel Function Control Description 11

4. Circuit Description 17

5. Adjustment Procedure 28

6. Troubleshooting Flow Chart 39

7. Recommended Spare Parts List 47

8. Exploded Diagram and Exploded Parts List 49

9. Block Diagram 52

10. Schematic Diagrams 53

11. PCB Layout Diagrams 60

ViewSonic Corporation Confidential - Do Not Copy VA1930wm-1

1. Precautions and Safety Notices

1. SAFETY PRECAUTIONS

This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However,

improper used or installation may cause damage to the monitor as well as to the user.

WARNINGS:

zThis monitor should be operated only at the correct power sources indicated on the label on the rear of the

monitor. If you’re unsure of the power supply in you residence, consult your local dealer or Power Company.

zUse only the special power adapter that comes with this monitor for power input.

zDo not try to repair the monitor by yourself, as it contains no user-serviceable parts. Only the qualified

technician can repair it.

zDo not remove the monitor cabinet. There are high-voltage parts inside that may cause electric shock to

human bodies.

zStop using the monitor if the cabinet is damaged. Have it checked by a service technician.

zPut your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable immediately and

consult your closed dealer.

zAlways unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth. Apply non-ammonia

based cleaner onto the cloth, not directly onto the glass screen.

zDo not place heavy objects on the monitor or power cord.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection

afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage,

wattage, etc. Before replacing any of these components read the parts list in this manual carefully. The use of

substitute replacement parts, which do not have the same safety characteristics as specified in the parts list,

may create shock, fire, or other hazards.

3. SERVICE NOTES

zWhen replacing parts or circuit boards, clamp the lead wires around terminals before soldering.

zKeep wires away from high voltage, high temperature components and sharp edges.

zKeep wires in their original position so as to reduce interference.

zAdjustment of this product please refers to the user’ manual.

ViewSonic Corporation Confidential - Do Not Copy VA1930wm-1

4. Handling and Placing Methods

ViewSonic Corporation Confidential - Do Not Copy VA1930wm-1

2. Specification

1. INTPRODUCTION

FEATURES VA1930wm

Size 19 ”

Luminance (Typ) 300 cd/㎡

Contrast Ratio (Typ) 700:1

Colors (6 bits + 2 bits FRC) 16.2 M

Response Time (Typ) 5 ms

Viewing Angle (H/V) 160 ° / 160 °@>=10

TFTLCD PANEL

Recommend resolution 1440x900@60Hz

Analog (75ohms, 0.7/1.0 Vp-p) Yes

Input Signal

Digital Yes

Separate Sync Yes

Composite Sync Yes

Sync Compatibility

Sync on Green Yes

PC Yes

Power Mac Yes

Compatibility

TV Box (NextVision 6) Yes

Power Voltage AC 100-240V, 50/60Hz Yes

On Mode(Max / Typ) 43 W/38W

Power Consumption

Off Mode (Max) ≦1 W

Audio Yes

Tilt ( 20 ° - -5 °) Yes

Swivel Yes

Pivot No

Ergonomics

Height Adjust Yes

OSD Control [ 1 ] [ 2 ] [ ][▼] [▲] Yes

Physical (W x H x D) 460 x 434 x 230 mm

Dimension

Package (W x H x D) 560 x 525 x 282 mm

Physical (Net Weight) 5.4 kg

Weight

Package (Gross Weight) 6.9 kg

Temperature ( / )℉℃ 32℉-104 /℉0℃-40℃

Operating Condition

Humidity (%) 10 % - 90 %

Temperature ( / )℉℃ -4℉-140 /℉-20℃-60℃

Storage Condition

Humidity (%) 10% - 90 %

Regulation

UL, CUL, FCC-B (ICES), CB, CE, TCO'03, ICES-003B, ISO13406-2, TUV/GS, TUV ERGO(covers

ISO13406-2 & MPRII), TUV-S, NOM, GOST-R, HYGIENIC (20 copies), ENERGY, Energy Star,

CCC, BSMI, PSB, C-TICK, KTL/MIC, SASO, WEEE, RoHS

ViewSonic Corporation Confidential - Do Not Copy VA1930wm-1

2 GENERAL specification

Test Resolution & Frequency 1440x900 @ 60Hz

Test Image Size Full Size

Contrast and Brightness Controls Factory Default:

Contrast = 70%, Brightness = 100%

3 VIDEO INTERFACE

Analog Input Connector DB-15 (Analog), refer the appendix A

Video Cable Strain Relief Equal to twice the weight of the monitor for five minutes

Video Cable Connector DB-15 Pin out Compliant DDC 1/2B

Video Signals Video RGB (Analog) – Separate,

Video Impedance 75 Ohms (Analog)

Maximum PC Video Signal 950 mV with no damage to monitor

Maximum Mac Video Signal 1250 mV with no damage to monitor

DDC 1/2B Compliant with Revision 1.3

Sync Compatibility Separate Sync

Video Compatibility Shall be compatible with all PC type computers, Macintosh

computers, and after market video cards

Resolution Compatibility

640 x 350, 640 x 480, 720 x 400 (640 x 400*), 800 x 600,

832 x 624, 1024 x 768, 1152 x 864, 1280 x 960, 1280 x

1024,1440x900

Exclusions Not compatible with interlaced video

4 POWER SUPPLY

Internal Power Supply Part Number:RLPR-025

Input Voltage Range 90 to 264 VAC

Input Frequency Range 47 to 63 Hertz

Short Circuit Protection Output can be shorted without damage

Over Current Protection 4 A typical at 14.2 VDC

Leakage Current 3.5mA (Max) at 254VAC / 60Hz

Efficiency 80% typical at 115VAC Full Load

Fuse Internal and not user replaceable

Power Dissipation 38 Watts (typ)

Max Input AC Current 0.8 Arms @ 90VAC, 0.4 Arms @265VAC

Inrush Current (Cold Start) 40 A @ 120VAC, 60 A (max) @ 220VAC

Power Supply Cold Start

Shall start and function properly when under full load, with

all combinations of input voltage, input frequency, and

operating temperature

Power Supply Transient Immunity Shall be able to withstand an ANSI/IEEE C62.41-1980

ViewSonic Corporation Confidential - Do Not Copy VA1930wm-1

2000V 200 ampere ring wave transient test with no

damage

Power Supply Line Surge Immunity Shall be able to withstand 1.5 times nominal line voltage for

one cycle with no damage

Power Supply Missing Cycle Immunity

Shall be able to function properly, without reset or visible

screen artifacts, when ½ cycle of AC power is randomly

missing at nominal input

Power Supply Acoustics

The power supply shall not produce audible noise that

would be detectable by the user. Audible shall be defined

to be in compliance with ISO 7779 (DIN EN27779:1991)

Noise measurements of machines acoustics. Power Switch

noise shall not be considered

US Type Power Cable

Separate 3-prong NEMA 5-15P type plug. Length = 1.8m.

Connects to display.

Color = Black

European Type Power Cable

Schuko CEE7-7 type plug.

Length = 1.8m, Connects to display.

Color = Black

CCC Type Power Cable

Separate 3-prong type plug.

Length = 1.8m. Connects to display.

Color = Black

PSE Type Power Cable

Separate 2-prong NEMA 1-15P type plug. Length = 1.8m.

Connects to display.

Color = Black

Power Saving Operation(Method) VESA DPMS Signaling

Power Consumption On Mode <42 W (max)

Off Mode< 1W

Recovery Time On Mode = N/A, Active Off < 3 sec

5 ELECTRICAL REQUIREMENT

Horizontal / Vertical Frequency

Horizontal Frequency 30 – 82 kHz

Vertical Refresh Rate

50 – 75* Hz.

Maximum Pixel Clock 135 MHz

Sync Polarity Independent of sync polarity.

ViewSonic Corporation Confidential - Do Not Copy VA1930wm-1

Timing Table

Analog

Item Timing

Separated

Composite

SOG

Digital - TMDS

Remark

1 640 x 350 @ 70 Hz, 31.5 KHz 　　　　 DMT

2 640 x 400 @ 60 Hz, 31.5 KHz 　　　　

3 640 x 400 @ 70 Hz, 31.5 KHz 　　　　

4 640 x 480 @ 50 Hz, 24.7 KHz 　

5 640 x 480 @ 60 Hz, 31.5 KHz 　　　　 DMT

6 640 x 480 @ 67 Hz, 35 KHz 　　　　 For MAC

7 640 x 480 @ 72 Hz, 37.9 KHz 　　　　 DMT

8 640 x 480 @ 75 Hz, 37.5 KHz 　　　　 DMT

9 720 x 400 @ 70 Hz, 31.5 KHz 　　　　

10 720 x 480 @ 60 Hz, 31.5 KHz 　　　　 DTV

11 720 x 576 @ 50 Hz, 31.3 KHz 　DTV

12 800 x 600 @ 56 Hz, 35.1 KHz 　　　　 DMT

13 800 x 600 @ 60 Hz, 37.9 KHz 　　　　 DMT

14 800 x 600 @ 72 Hz, 48.1 KHz 　　　　 DMT

15 800 x 600 @ 75 Hz, 46.9 KHz 　　　　 DMT

16 832 x 624 @ 75 Hz, 49.7 KHz 　　　　 MAC

17 1024 x 768 @ 50 Hz, 39.6 KHz 　

18 1024 x 768 @ 60 Hz, 48.4 KHz 　　　　 DMT

19 1024 x 768 @ 70 Hz, 56.5 KHz 　　　　 DMT

20 1024 x 768 @ 72 Hz, 58.1 KHz 　　　　

21 1024 x 768 @ 75 Hz, 60 KHz 　　　　 DMT

22 1024 x 768 @ 75 Hz, 60.2 KHz 　　　　 For MAC

23 1152 x 864 @ 75 Hz, 67.5 KHz 　　　　 DMT

24 1152 x 870 @ 75 Hz, 68.7 KHz 　　　　 For MAC

25 1152 x 900 @ 67 Hz, 62.5 KHz 　　　　 For SUN

26 1280 x 720 @ 50 Hz, 37.5 KHz 　　　　 DTV

27 1280 x 720 @ 60 Hz, 45 KHz 　　　　 DTV

28 1280 x 768 @ 50 Hz, 39.6 KHz 　

29 1280 x 768 @ 60 Hz, 47.8 KHz 　　　　 DMT;

30 1280 x 768 @ 75 Hz, 60.3 KHz 　　　　 DMT;

31 1280 x 960 @ 50 Hz, 49.4 KHz 　

32 1280 x 960 @ 60 Hz, 59.7 KHz 　　　　 DMT

33 1280 x 960 @ 75 Hz, 75.2 KHz 　　　　

34 1280 x 1024 @ 50 Hz, 52.7 KHz 　

35 1280 x 1024 @ 60 Hz, 64 KHz 　　　　 DMT

36 1280 x 1024 @ 75 Hz, 80 KHz 　　　　 DMT

37 1440 x 900 @ 60 Hz 59.9 KHz 　　　　 DMT

Primary Presets

1440x900 @ 60Hz

User Presets

Number of User Presets (recognized timings) Available: 10 presets total in FIFO configuration

Changing Modes

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

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

Image Adjust”.

The monitor needs to do “Auto Image Adjust” the first time when a new mode is detected. (See section “0-Touch™

Function Actions”)

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