Acer B193 User manual

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Service Manual
LCD Monitor Acer B/V193

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Table of Contents
Important Safety Notice .........................................................................................01
01 Product Specification ..........................................................................................03
02 Flat Panel Specification .......................................................................................13
03 Exploded Diagram ..............................................................................................27
04 Troubleshooting ....................................................................................................32
05 Spare Parts List ...................................................................................................35
06 Schematics and Layouts.......................................................................................36
07 Assembly and Disassembly ................................................................................38
Appendix : User’s manual
Copyright
Copyright 2006 InnoLux Tech. Corp. Ltd
All Rights Reserved
This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or
converted to any electronic or machine readable form without prior written permission of InnoLux Tech.
Corp. Ltd.
Acer B/V193 Service Manual

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Important Safety Notice
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.
Warning:
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.
zDo not try to repair the monitor by yourself, as it contains no user-serviceable
parts. This monitor should only be repaired by a qualified technician.
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
class 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.

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01 Product Specification
1. General:
Acer BV 193W(4:3) is designed with LVDS interface and dual (analog and digital signal) input, it
featured with embedded universal AC power supplies and audio input. It’s a green product and meets
all ROHS standard. The power button and display control buttons are on the front of the monitor. The
monitors shall automatically to display lower resolution video modes into 1280x1024 full screen
display. The image can be adjusted through OSD control.
1.1 Main Features
Features Specifications
Panel source HSD190MEN3-A00
Maximum resolution 1280 x 1024
Back light system 4 CCFL (top & bottom edge side)
Actual Resolution display SXGA (280 x 1024)
Pixel pitch 0.294(H) x 0.294(V)
Display area 376.32 (H) x301.056 (V) (19.0” diagonal)
Contrast ratio 700׃1 (min.), 1000׃1 (typ.)
Response time (Tr+Tf) 5ms (typ.),
Viewing angle 85°(H)/ 85°(R), 80°(V)/80°(D) typ. CR>=10)
Input interface Analog(D-sub 15 pin)
Digita(DVI-D connector )----option
Audio-In YES (option)
Earphone NA
Speakers YES(option)
Video Signal Inputs D-sub, DVI-D
Knobs and Indicators Power switch button, MENU button, Auto button, eColour, Down
button, Down button
Security Features Kensington®lock port, VESA®Wall-mountable interface, 100 mm
Power management Compatible with VESA,EPA,NUTEK,DPMS
Plug & Play VESA
University AC power supply YES
For Non-EMEA English (US), French, Italian, Finnish, Spanish, German, Dutch, Russian
For EMEA English (US),French, Italian,Simplified Chinese, Spanish, German a
Dutch, Traditional Chinese, Japanese
OSD language
Russia English (US), French, Italian, Finnish, Spanish, German, Dutch, Russian
1.2 Accessories
Items VGA
cable
DVI
cable
User’s
manual
Warranty
card
Quick-start
Guide
Installation
Guide
Description 1.8m 1.8m Multi English
●●●●
1. Operation Specifications

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The unit should suffer no visible cosmetic damage and should operate with no degradation in display
quality during exposure to the operating conditions and after exposure to the non-operating conditions,
in any sequence.
2.1 Environmental conditions
Operating Specification
Temperature range 0°C to 40°C
Relative humidity 20% to 80%
Altitude 0 to 3048M (10000 ft)
Storage
Temperature range -25°C to 60°C
Relative humidity 5% to 80%
Altitude 0 to 9144M (30000 ft)
2.2 Safety, EMC, Ergonomics and Compatibility Requirements
Items Description
UL/cUL CB TUV/GS CCC Other
Safety ●●●●
FCC CE CCC VCCI-B
EMC ●●●●
TCO99 TCO03
Ergonomics ●●
Windows 95/98/Me Windows 2000 Windows XP vista
Compatibility ●●●●
Energy Star
Power
Management ●
2.3 Electrostatic Discharge Requirements
Item Condition Spec
Contact discharge : +4KV
Contact discharge : +8KV ●
Air discharge : + 8KV
Electrostatic Discharge IEC61000-4-2(EN55024)
Air discharge : +15KV ●
2.4 Reliability
Items Condition Spec Note
MTBF ≧40,000 Hours Excluding the
LCD, CCFL
CCFL Life time Luminance becomes 50% ≧40,000 Hours(min) Note1
Note1. Display an all WHITE field at mid Brightness and Contrast settings.
2. Electrical and Optical Characteristics and Performance
3.1 Main Power Supply
Items Condition Spec Note
AC Input Voltage Range Universal input full range 100~240VAC /50~60Hz

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AC Input Current 100Vac
240Vac
1.2A(max)
0.6A(max)
AC Frequency Range 100Vac
240Vac
50Hz – 60Hz
100Vac,cold star,25°C 40A (max)
Inrush Current
240Vac,cold star,25°C 60A(max)
See Note2
Regulator Efficiency DC output full loading ≥75%
+16V output <350mv
Ripple and Noise
+5V output <150mv
16v loading: 0.3A~2.0A
5v loading: 0.75A~1.5A
Vcc16V(15.2V~18.5V)
DC Output Voltage
5v loading: 0.04A~1.5A Vcc5V(4.95V~5.45V)
See Note 3
DC output loading capability Vcc5V/1.5A,
Vcc16V/2.0A
Power consumption with Audio ≤45W
Protection See Table-1
Power management See Table-2
Note2.Before each test, the buck capacitor need to be discharged.
Before each test, it must be 10 minutes at least after the latest test
Note3. DC output voltage when no loading must meet load component de-rating standard.
+16v with no load ,16v output voltage 20v (max)
Table-1
Protection Condition Spec
OPP(Over power protection) nominal AC input 50W ( min )
SCP(short circuit protection) with auto-recovery function
Table-2
Status H-sy
nc
V-sy
nc Video Power LED
Power On on on active ≤45W BLUE
off on blanked < 2W Amber
on off blanked < 2W Amber
Power Saving
off off blanked < 2W Amber
Power Off -- -- -- < 1W Off
3.2 Backlight Power Supply
Panel: INL MT190AW01 V.5
Items Specification
Lamp 4 CCFL
Input Voltage 15.2V~18.5V
Input current 1.6A (Typ.), 2.0A (Max.)
On/Off switch level 5.5V≧Von≧2.0 V (on)
-0.3v ≤Voff ≤0.8 V (off)
Brightness PWM duty 35%~100%
PWM:High=3.3V(3.0~3.6V),Low=0.0V
CCFL operating Voltage 680Vrms (Typ.),

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2.0 mA (min.)(With PWM Dim)
7.0mA (Typ.)
CCFL Current
8mA (Max.)
CCFL startup voltage ≧1700 Vrms (0˚C)
Operating frequency 40~80 KHz
Protect delay time > 1 second
Efficiency ≥70%(with dummy load)
3.3 Brightness output
The test to verify specifications in this section shall be performed under the following standard
conditions unless otherwise noted.
Temperature : 25 ± 5°C
Test pattern : white
Video Resolution : 1440 x 900
Video input level : 700 mV ± 2%
Warm-up time : 30 minutes
LCD Module BL
HSD190MEN3-A00 ≥250 cd/m2
Set brightness control and also contrast control at maximum, to measure the screen center,
the light output shall ≥BL cd/m2 (as panel spec)
3.4 White balance
Chromaticity Coordinate
Mode x y
Cool 9300K 0.283 ± 0.030 0.297 ± 0.030
Warm 6500K 0.313 ± 0.030 0.329 ± 0.030
User Panel While x Panel While y
The test standard conditions refer to Sec 3.3. (Brightness and contrast are under default
value)
3.5 Brightness uniformity
The test standard conditions refer to Sec 3.3.
%
≥75
)(backlightpointsnineofluminanceMax.
)(backlightpointsnineofluminanceMin.

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4.Input / Output Signal Specifications
4.1Video signals
Items Condition Specification
Analog RGB signal Input impedance = 75 Ohm 0.7Vp-p
Sync Input impedance ≧1k Ohm TTL level, Separate H/V-sync(+/-)
4.2 Signal Timing
4.2.1 D-SUB Inputs
Through D-SUB connectors, this unit can support FH= 31.5 ~ 80 KHz, Fv=56 ~ 75Hz
and SXGA display modes as below:
Resolution H-Freq. (kHz) V-Freq. (Hz) Dot Clock (MHz) Mode
31.5 60.0 25.175
37.9 72.0 31.500
640 x 480
37.5 75.0 31.500
35.1 56.0 36.000
37.9 60.0 40.000
48.1 72.0 50.000
800 x 600
46.9 75.0 49.500
48.4 60.0 65.000
56.5 70.0 75.000
1024 x 768
60.0 75.0 78.750
64.0 60.0 108.000
1280 x 1024 80.0 75.0 135.000
VESA
IBM-AT Compatible
machine
PC-9800 series
640 x 350 31.5 70.0 25.175
720 x 400 31.5 70.0 28.322 US/IBM Text
832 x 624 49.7 74.6 57.283
60.2 75.0 80.000
1024 x 768 48.8 60.0 64.000
Power Macintosh series
Note: 1. Non-interlace signals only (An interlace signal cannot be display)
2. Please refer to F/W specification for more detail
3. Each frequency of Power Macintosh and Sun Ultra is a reference value
For DVD Player Input, Attached timing is supported: (Optional)
Mode Resolution (active dot) Resolution
(total dot)
Horizontal
Frequency (KHz)
Vertical
Frequency (Hz)
Nominal Pixel
Clock (MHz)
Remark
480P@60Hz 858x525 31.5 60.000 27.027
576P@50Hz 864x625 31.250 50.000 27.000
DVD
Player 720P@60Hz 1650x750 45.000 60.000 74.250
4.2.2 Digital signals
TMDS Signal: (min) ±200mVpp@24Bit
4.2.3 DDC signals
DDCsignals: 5V@50mATTLlevel
4.3Timing requirements
Scan Frequency Condition Specification
Horizontal Sync polarity: (+) or (-) 31.5 ~ 80 KHz.
Vertical Sync polarity: (+) or (-) 56-75Hz
Out of range
Excluding
Horizontal 31.5~80 KHz or
Vertical 56-75 Hz
Message “Input Not Supported” on screen

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4.4DDC data
4.4.1 EDID Standard Compliance
EDID File Format : VESA’s EDID Standard Version #3, Revision #0,
EDID Structure : Version #1, Revision #3.
EDID Data Table : See the attached table (for example)
B193 DVI EDID table
B193VGA EDID table
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 00 FF FF FF FF FF FF 00 04 72 4B 00 00 00 00 00
1 00 00 01 03 08 26 1E 78 EA 9A E5 A6 58 49 99 23
2 11 50 54 BF EF 00 01 01 01 01 01 01 01 01 01 01
3 01 01 01 01 01 01 30 2A 00 98 51 00 2A 40 30 70
4 13 00 78 2D 11 00 00 1E 00 00 00 FD 00 38 4B 1E
5 53 0E 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30
6 30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC
7 00 42 31 39 33 0A 20 20 20 20 20 20 20 20 00
CS
V193 VGA EDID table
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 00 FF FF FF FF FF FF 00 04 72 4C 00 00 00 00 00
1 00 00 01 03 08 26 1E 78 EA 9A E5 A6 58 49 99 23
2 11 50 54 BF EF 00 01 01 01 01 01 01 01 01 01 01
3 01 01 01 01 01 01 30 2A 00 98 51 00 2A 40 30 70
4 13 00 78 2D 11 00 00 1E 00 00 00 FD 00 38 4B 1E
5 53 0E 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30
6 30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC
7 00 56 31 39 33 0A 20 20 20 20 20 20 20 20 00
CS
V193 DVI EDID table
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 00 FF FF FF FF FF FF 00 04 72 4C 00 00 00 00 00
1 00 00 01 03 80 26 1E 78 EA 9A E5 A6 58 49 99 23
2 11 50 54 BF EF 00 01 01 01 01 01 01 01 01 01 01
3 01 01 01 01 01 01 30 2A 00 98 51 00 2A 40 30 70
4 13 00 78 2D 11 00 00 1E 00 00 00 FD 00 38 4B 1E
5 53 0E 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 00 FF FF FF FF FF FF 00 04 72 4B 00 00 00 00 00
1 00 00 01 03 80 26 1E 78 EA 9A E5 A6 58 49 99 23
2 11 50 54 BF EF 00 01 01 01 01 01 01 01 01 01 01
3 01 01 01 01 01 01 30 2A 00 98 51 00 2A 40 30 70
4 13 00 78 2D 11 00 00 1E 00 00 00 FD 00 38 4B 1E
5 53 0E 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30
6 30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC
7 00 42 31 39 33 0A 20 20 20 20 20 20 20 20 00
CS

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6 30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC
7 00 56 31 39 33 0A 20 20 20 20 20 20 20 20 00 cs
4.5 Audio signal
Items Specification
Input impedance ≧10K ohm
Frequency response range 200Hz – 10kHz
Signal to noise ratio ≧40 dB
Output power ≧0.5W + 0.5W ( 10%THD )
3. Function Specifications
All the tests to verify specifications in this section shall be performed under the following standard
conditions unless otherwise noted. The standard conditions are:
Temperature : 25 ± 5°C
Warm-up time : 30 minutes minimum
Checking display modes : All the specified modes
5.1 Panel general specifications
5.1.1 General specifications
Supplier InnoLux
Model name HSD190MEN3-A00
Display Area 376.32 (H) x301.056 (V) (19.0” diagonal)
Pixel Pitch 0.294(H) x 0.294(V)
Display Colors: 16.7 Million (6-bit + HI-- FRC)
Number of Pixel 1280(H) x 1024(V)
Pixel Arrangement RGB vertical stripe
Brightness 300cd/m2(Typ.) 250cd/m2(Min.)
Contrast Ratio 700:1 Typical
Viewing Angle Hor:170°, Ver: 170°
(Typical, CR>10)
Display Mode Normally White
Frame rate 75Hz
Response Time Tr + Tf = 5ms Typical
Surface Treatment Anti-glare, Haze = 25%,
Hard coating (3H)
Lamp 4 CCFL
Outline Dimension 396 * 324 * 16.5(Typ)
5.1.2 LCD module defects
LCD module defects check follow to the IIS.
5.2Keypad Function
5.2.1 Control buttons on the front bezel
CONTROL KEY KEYS FUNCTION
[AUTO]
A. When OSD un-displays, press [AUTO] to perform auto-adjustment
B. When OSD displays, press [AUTO] to return to previous level menu
C. When “e Color OSD” OSD displays, press [AUTO] to exit the OSD