Acer V193W User manual

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Product Service Manual –V193W
Service Manual for acer: V193W
P/N:
Applicable for All Regions
Version: 001
Date:2009/6/18
Notice:
- For RO to input specific “Legal Requirement” in specific NS regarding to responsibility and liability
statements.
First Edition (June, 2009)
© Copyright Acer Corporation 2009. All Right Reserved.

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Content Index
1. About This Manual............................................................................................................ 3
1.1. Trademark........................................................................................................................ 3
2. Introduction....................................................................................................................... 4
2.1. RoHS (2002/95/EC) Requirements.................................................................................. 4
2.2. Safety Notice.................................................................................................................... 4
2.3 .Compliance Statement..................................................................................................... 4
2.4. General Descriptions ....................................................................................................... 4
3. Product Overview ............................................................................................................. 5
3.1. Introduction...................................................................................................................... 5
3.2. Operational Specification ................................................................................................. 7
3.3. Operational & Functional Specification ...........................................................................11
3.4. LCD Characteristics....................................................................................................... 14
3.5. User Controls................................................................................................................. 17
3.6. Mechanical Characteristics............................................................................................ 18
3.7. Pallet & Shipment .......................................................................................................... 19
3.8. Certification.................................................................................................................... 20
3.9 Packing........................................................................................................................... 21
4. Disassembly /Assembly................................................................................................. 22
4.1. Exploded View............................................................................................................... 22
4.2. Disassembly /Assembly................................................................................................. 24
5. Level 1 Cosmetic / Appearance / Alignment Service ................................................... 35
5.1 Alignment procedure (for function adjustment)................................................................ 35
5.2 Software / Firmware Upgrade Process ........................................................................... 38
5.3 EDID Upgrade Procedure............................................................................................... 43
5.4 OSD Operation Guide..................................................................................................... 48
6. Level 2 Circuit Board and Standard Parts Replacement ............................................. 53
6.1. Trouble Shooting Guide ................................................................................................. 53
6.2 Circuit Operation Theory................................................................................................. 59
6.3 Spare Parts List............................................................................................................... 62
Appendix 1 –Screw List / Torque...................................................................................... 65
Appendix 2 –Physical Dimension Front View and Side view......................................... 68
Appendix 3 –Control Board............................................................................................... 69

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Abbreviations & Acronyms
1. About This Manual
This manual contains information about maintenance and service of acer products. Use this manual to
perform diagnostics tests, troubleshoot problems, and align the acer product.
1.1. Trademark
The following terms are trademarks of Acer Inc. :
Acer
Importance
Only trained service personnel who are familiar with this Acer Product shall perform service or
maintenance to it. Before performing any maintenance or service, the engineer MUST read the “Safety
Note”.

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2. Introduction
This section contains general service information, please read through carefully. It should be stored for
easy access place for quick reference.
2.1. RoHS (2002/95/EC) Requirements
–Applied to all countries require RoHS.
The RoHS (Restriction of Hazardous Substance in Electrical and Electronic Equipment Directive) is a legal
requirement by EU (European Union) for the global electronics industry which sold in EU and some counties
also require this requirement. Any electrical and electronics products launched in the market after June 2006
should meet this RoHS requirements. Products launched in the market before June 2006 are not required to
compliant with RoHS parts. If the original parts are not RoHS complaints, the replacement parts can be non
ROHS complaints, but if the original parts are RoHS compliant, the replacement parts MUST be RoHS
complaints.
If the product service or maintenance require replacing any parts, please confirming the RoHS requirement
before replace them.
2.2. Safety Notice
1. Make sure your working environment is dry and clean, and meets all government safety requirements.
2. Ensure that other persons are safe while you are servicing the product.
DO NOT perform any action that may cause a hazard to the customer or make the product unsafe.
3. Use proper safety devices to ensure your personal safety.
4. Always use approved tools and test equipment for servicing.
5. Never assume the product’s power is disconnected from the mains power supply. Check that it is
disconnected before opening the product’s cabinet.
6. Modules containing electrical components are sensitive to electrostatic discharge (ESD). Follow ESD safety
procedures while handling these parts.
7. Some products contain more than one battery. Do not disassemble any battery, or expose it to high
temperatures such as throwing into fire, or it may explode.
8. Refer to government requirements for battery recycling or disposal.
2.3 .Compliance Statement
Caution: This Optical Storage Product contains a Laser device. Refer to the product specifications and your
local Laser Safety Compliance Requirements.
2.4. General Descriptions
This Service Manual contains general information. There are 3 levels of service:
Level 1: Cosmetic / Appearance / Alignment Service
Level 2: Circuit Board or Standard Parts Replacement
Level 3: Component Repair to Circuit Boards

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3. Product Overview
3.1. Introduction
V193W is defined as our new 19”W model in ACER V series which will be the ACER project in Qisda. V193W is
defined as 19”W LCD Monitor supports 1440(H) x 900(V) resolution with DPMS (Display Power Management
System) and ACER eColor function. There are triple input types, D-sub, DVI. V193W adopts AUO panel
M190PW01 V5, LGD panel LM190WX1-TLP1, SEC panel LTM190BT03. V193W has included 1W+1W speaker.
V193W also support ACM 10000:1.
The features summary is shown as below,
*All panel spec. in Q201 definition depends on the variance of panel source.
*All spec. of monitor need to warm up at least 1hr.
* To test the “Contrast Ratio” and “Luminance” functions, the color status must be “User preset” mode.
* 1. “Contrast Ratio”: Set “brightness” at 100, and “contrast” at 50.
* 2. “Luminance”: Set “brightness” at 100, and “contrast” at 100.
Feature items
Specifications
Remark
Panel supplier & module name
AUO M190PW01 V5
LGD LM190WX1-TLP1
SEC LTM190BT03
TN, Normally white
Screen diagonal
19”W
408.24(H) x 255.15(V)
Display Format
1440(H) x 900 (V)
Panel Display information
Pixel Pitch
AUO: 0.2835 mm x 0.2835
mm
LGD: 0.2835 mm x 0.2835
mm
SEC: 0.2835 mm x 0.2835
mm
per one triad
Viewing Angle (@ Contrast Ratio >= 10)
AUO:
R/L: 170 degrees (typ.)
U/D: 160 degrees (typ.)
LGD:
R/L: 170 degrees (typ.)
U/D: 160 degrees (typ.)
SEC:
R/L: 160 degrees (typ.)
U/D: 160 degrees (typ.)
Analog interface with Scaling supported
Yes
With 15-pin D-sub
HDMI interface with Scaling supported
NA
Max resolution mode supported
1440 (H) x 900(V)@60Hz
Number of Display Colors supported
16.7 Millions
Contrast Ratio
AUO:1000 (typ.),600(min)
LGD:1000 (typ.), 700(min)
SEC:1000 (typ.), 600(min)
Test Condition: Set Contrast
at 50, Brightness at 100,
Color at User preset
Luminance
300 cd/m2(typ.),250 cd/m2
(min)
Test Condition: Set Contrast
at 50, Brightness at 100,
Color at User preset

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AC power input
Yes
90-264 Volts, 47-63 Hz.
DC power input (with AC power adapter)
No
DPMS supported
Yes
<1W
LED indicator for power status showed
Yes
Blue/Amber
OSD for control & information supported
Yes
Multi-language supported for OSD
Yes
EMEA
Non-EMEA
Buttons control supported
Yes
6 buttons including 1
monitor power on/off
control button.
Flywheel control supported
No
Scaling function supported
Yes
Auto adjustment function supported
Yes
“Auto-Key” function
DDC function supported (EDID ver. 1.3)
Yes
DDC2B
DDC-CI support version 1.1 or later
Yes
DDC-CI
Audio speakers supported
Yes
Audio Jack (input connector) supported
Yes
Line-in connector
Earphone Jack (Output connector)
supported
No
Microphone function supported
No
Mechanical Tilt base design
Yes
From -5 to +23 degree
VESA wall mounting design
Yes
Mechanical Rotate design
No
Mechanical Lift base design
No
Kensington compatible lock design
Yes

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3.2. Operational Specification
3.2.1 Power supply
Item
Condition
Spec
OK
N.A
Remark
Input Voltage range
Universal input full range
90~264VAC /47~63Hz

Input Current range
90 ~ 264VAC
< 0.7 Arms

Power Consumption
Normal “On” operation
< 31 W

LED: Blue
DPMS
DPMS “Sleep” state
< 1 W

LED: Amber
DPMS
DPMS “Off” state
< 0.5 W

LED: OFF
Inrush Current
110 VAC
220 VAC
< 30 A (peak)
< 60 A (peak)

Cold-start
Earth Leakage Current
264 VAC/50Hz
< 3.5 mA

Hi-Pot
1. 1500VAC, 1 sec
2. Ground test: 30A,
1sec
Without damage
< 0.1 ohm

(on-line test)
(in-lab test)
Power Line Transient
IEC1000-4-4
1KV

IEC1000-4-5 (Surge)
Common: 2KV,
Differential: 1KV

CCFL operation range
90 ~ 264VAC
AUO: 3~8mA
LGD : 3~8mA
SEC : 3~8mA

Depends on panel
source
CCFL Frequency
90 ~ 264VAC
AUO:40KHz ~ 80KHz
LGD:40KHz ~ 80KHz
SEC :40KHz ~ 60KHz

Depends on panel
source
Power cord
Color: Black
Length: 1800 +/- 50 mm

3.2.2 Signal interface
Item
Condition
Spec
OK
N.A
Remark
Signal Cable
15-pin D-Sub
Color: Black
Length: 1800 +/- 30 mm

24-pin DVI-D
Color: Black
Length: 1800 +/- 50 mm

Pin assignment
15-pin D-sub connector
See Note-1

For 15-pin D-sub
24-pin DVI-D connector
See Note-2

For 24-pin DVI-D
19-pin HDMI connector
See Note-3

For 19-pin HDMI
Analog input
Signal type
Separate analog R/G/B

For 15-pin D-sub
Level
700 mV (peak to peak)

Impedance
75 Ohms +/- 1.5 Ohms

Sync input
Signal type
Separate H/V-sync
(Positive/Negative)

For 15-pin D-sub
Level
Logic High: 2.4V ~ 5.5V
Logic Low: 0V ~ 0.5V
(TTL level)

Refer to VESA VSIS
Standard V1R1
Impedance
Minimum 2.2KΩ(pull
down)

10KΩ for application
Sync Pulse Width (SPW)
0.7μs < H-SPW
1H < V-SPW

Digital input
Level
600mV for each
differential line


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Impedance
50 Ohm TDR Scan
needed for DVI cable and
interface board

Note-1: The pin assignment of 15-pin D-sub connector is as below,
Pin
Signal Assignment
Pin
Signal Assignment
1
Red video
9
PC5V (+5 volt power)
2
Green video
10
Sync Ground
3
Blue video
11
Ground
4
Ground
12
SDA
5
Cable Detected
13
H-Sync (or H+V)
6
Red Ground
14
V-sync
7
Green Ground
15
SCL
8
Blue Ground

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Note-2: The pin assignment of 24-pin DVI-D connector is as below,
Pin
Signal Assignment
Pin
Signal Assignment
1
TMDS RX2-
13
Floating
2
TMDS RX2+
14
+5V Power
3
TMDS Ground
15
Ground(Cable Detect)
4
Floating
16
Hot Plug Detect
5
Floating
17
TMDS RX0-
6
DDC Clock
18
TMDS RX0+
7
DDC Data
19
TMDS Ground
8
Floating
20
Floating
9
TMDS RX1-
21
Floating
10
TMDS RX1+
22
TMDS Ground
11
TMDS Ground
23
TMDS Clock+
12
Floating
24
TMDS Clock-
3.2.3 Video performance
Item
Condition
Spec
OK
N.A
Remark
Max. support Pixel rate
136.75 MHz

Both for analog and
digital inputs
Max. Resolution
1440 x 900

Both for analog and
digital inputs
Rise time + Fall time
< 5 ms
(50% of minimum pixel
clock period)

1440x900 @ 75Hz
(max. support timing)
Settling Time after
overshoot /undershoot
< 5% final full-scale value

Refer to VESA VSIS
Standard V1R1
Overshoot/Undershoot
< 12% of step function
voltage level over the full
voltage range

Refer to VESA VSIS
Standard V1R1
3.2.4 Scan range
Item
Condition
Spec
OK
N.A
Remark
Horizontal
31-83 KHz

Vertical
56-76 Hz

HDMI supports 50Hz

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3.2.5 Plug & Play DDC2B DDC-CI Support
Item
Condition
Spec
OK
N.A
Remark
DDC channel type
DDC2B

EDID
Version 1.3

Refer to S/W spec.
document to see the
detailed EDID data
definition.
DDC-CI
Version 1.1 or Later

Refer to S/W spec
3.2.6 Support Timings
Mode
Resolution
(active dot)
Resolution
(total dot)
Horizontal
Frequency (KHz)
Vertical
Frequency (Hz)
Nominal Pixel
Clock (MHz)
640x480@60Hz
800 x 525
31.469
59.941
25.175
640x480@72Hz
832 x 520
37.861
72.809
31.500
640x480@75Hz
840 x 500
37.500
75.000
31.500
MAC
[email protected]
864x525
35
66.66
30.24
VESA
720x400@70Hz
900x449
31.469
70.087
28.322
SVGA
800x600@56Hz
1024 x 625
35.156
56.250
36.000
800x600@60Hz
1056 x 628
37.879
60.317
40.000
800x600@72Hz
1040 x 666
48.077
72.188
50.000
800x600@75Hz
1056x625
46.875
75.000
49.500
MAC
[email protected]
1152x667
49.722
74.55
57.28
XGA
1024x768@60Hz
1344x806
48.363
60.004
65.000
1024x768@70Hz
1328x806
56.476
70.069
75.000
1024x768@75Hz
1312x800
60.023
75.029
78.750
MAC
1152x870@75Hz
1456x915
68.681
75.062
100.000
VESA
1152x864@75Hz
1600x900
67.5
75
108
1280x960@60Hz
1800x1000
60
60
108
SXGA
1280x1024@60Hz
1688x1066
63.981
60.020
108.000
1280x1024@75Hz
1688x1066
79.976
75.025
135.000
VESA
1280x720@60Hz
1650x750
44.955
59.940
74.176
WXGA
1280x800@60Hz
1680x831
49.702
59.810
83.500
1360x768@60Hz
1792x795
47.712
60.015
85.500
WXGA+
1440x900@60Hz
1904x931
55.935
59.887
106.500
1440x900@75Hz
1936x942
70.635
75.000
136.750
Note:
1. Show “Input Not Supported” warning message.
When Vertical Frequency is over 76Hz or under 56Hz, the display is Black and showing “Input Not
Supported” warning message. (Some video timings are except for PAL, 50Hz signals.)
2. If Hf /Vf is set in the range of 31KHz~83KHz and 56Hz ~76Hz (not including some video timing), and Pixel
Clock is set in the range of 25.175MHz~173MHz(DVI and HDMI input port 165MHz for Single-Link), but is
not the above Resolution, then it will display the nearest mode.