Acer BV193HQ User manual

Acer Acer –LCD-BV193HQ
- 0 -
Service Manual
LCD Monitor Acer BV193HQ

1
1
Table of Contents
Important Safety Notice ......................................................................................01
01 Product Specification .......................................................................................03
02 Flat Panel Specification ....................................................................................23
03 Exploded Diagram ............................................................................................50
04 Troubleshooting..................................................................................................53
05 Spare Parts List .................................................................................................60
06 Schematics and Layouts....................................................................................61
07 Assembly and Disassembly .............................................................................70
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 BV193HQ 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 BV193HQ 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 1366x768 full screen display. The image can be adjusted through OSD control.
1.1 Main Features
Features Specifications
Panel source M185XW01-V0
Maximum resolution 1366x768 @ 60Hz
Back light system 2 CCFL
Actual Resolution display WXGA(1366x768)
Pixel pitch 0.3(H) x 0.3(V)
Display area 409.8 ( H ) x230.4 ( V ) , 18.5” diagonal
Contrast ratio 10000:1(ACM ON)
Response time (Tr+Tf) 5ms (typ.),
Viewing angle 85°(L)/ 85°(R), 80°(U)/80°(D) typ. CR>=10)
Input interface Analog(D-sub 15 pin)
Digita(DVI-D connector )----option
Audio system ≧1 W + 1 W
Power management Compatible with VESA,EPA,NUTEK,DPMS
Plug & Play VESA
University AC power supply YES
For Non-EMEA English, Deutsch, Español, 简体中文, 繁體中文, Français, Italiano, 日本語
OSD language For EMEA English, Deutsch, Español, Dutch, Russian, Français, Italiano, Finnish
1.2 Accessories
Items VGA cable DVI
cable
Audio cable
User’s
manual Warranty card Quick-start Guide
Description 1.8m 1.8m 1.8m Multi Multi Multi
●●●●●●
2. Operation Specifications
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 5°C to 40°C
Relative humidity 20% to 80%
Altitude 0 to 3657M (12000 ft)
Storage
Temperature range -20°C to 60°C
Relative humidity 5% to 80%
Altitude 0 to 12191M (40000 ft)

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2.2 Safety, EMC, Ergonomics and Compatibility Requirements
Items Description
UL/cUL CB TUV/GS CCC BSMI Other
Safety ●●●●●
FCC-B CE/EMC CCC VCCI C-Tick BSMI
EMC ●●●●●●
TCO99 TCO03 Nemko/Erg
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 Operating condition is 40°C≧50,000 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.
3. 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
AC Input Current 100Vac
240Vac
1.2A(max)
0.6A(max)
AC Frequency Range 100Vac
240Vac
50Hz – 60Hz
Inrush Current 120Vac,cold star,0°C
240Vac,cold star,0°C
30A (max)
60A(max)
Regulator Efficiency DC output full loading ≥75%
+14.2V output <400mv
+5.2Vcc output <150mv
Ripple and Noise
+5.2V audio output <200mv
Note4
DC Output Voltage and Current VCC14.2V(13.5~16.3V);
VCC5.2V(4.95~5.45V);
Audio VCC5.2V(4.95~5.45V)
0.8A(typ.),1.0A(max)
0.8A(typ.),1.0A(max)
0.5A(typ.),0.6A(max)
Power consumption with Audio ≤25W

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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.
Note4. ested by DC loading side parallel with a 47uF/EC and 0.1uF/Ceramic , Capacitors and measured
band-width with DC-20MHz, the sine wave signal that the frequency is 1K Hz input when testing the ripple for the
5V of audio.
Table-1
Protection Condition Spec
OPP(Over power protection) nominal AC input 32W ( min )
Table-2
Status H-sy
nc
V-sy
nc Video Power LED
Power On on on active ≤25W 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: AUO M190PW01 V0
Items Specification
Lamp 2 CCFL
Input Voltage 13.5V~ 16.3 V
Input current 0.8A (Typ.), 1.0A (Max.)
On/Off switch level 5.5V≧Von≧2.0 V (on)
-0.3v ≤Voff ≤0.8 V (off)
Brightness PWM duty Extra PWM duty:18%~100%(DCR);35%~100%(CR);
PWM:High=3.3V(3.0~3.30V),Low=0.0V
CCFL operating Voltage 734Vrms (Typ.),
DCR:1.6 mA (min.); CR:3.0 mA (min)
7.5mA (Typ.)
CCFL Current
8.0mA (Max.)
CCFL startup voltage ≧1700 Vrms (0˚C)
Operating frequency 40~80 KHz
Protect delay time > 1 second
Lamp 2 CCFL
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 : 1366 x 768
Video input level : 700 mV ± 2%
Warm-up time : 30 minutes

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LCD Module BL
M185XW01-V0 ≥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.
4. Input / Output Signal Specifications
4.1 Video 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
Through D-SUB/DVI connectors, this unit can support FH= 31~80 KHz, Fv=55~76Hz, Modes details
as below:
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

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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
SVGA
800x600@75Hz 1056x625 46.875 75.000 49.500
MAC [email protected] 1152x667 49.722 74.55 57.28
1024x768@60Hz 1344x806 48.363 60.004 65.000
1024x768@70Hz 1328x806 56.476 70.069 75.000
XGA
1024x768@75Hz 1312x800 60.023 75.029 78.750
MAC 1152x870@75Hz 1568x909 68.700 75.000 84.520
1152x864@75Hz 1600x900 67.5 75 108
VESA 1280x960@60Hz 1800x1000 60 60 108
1280x1024@60Hz 1688x1066 63.981 60.020 108.000
SXGA 1280x1024@75Hz 1688x1066 79.976 75.025 135.000
VESA 1280x720@60Hz 1650x750 44.955 59.940 74.176
1280x800@60Hz 1680x831 49.702 59.810 83.500
WXGA 1366x768@60Hz 1792x798 47.712 59.790 85.500
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
4.2.1 Digital signals
TMDS Signal: (min) ±200mVpp@24Bit
4.3 Timing requirements
Scan Frequency Condition Specification
Horizontal Sync polarity: (+) or (-) 31 ~ 80 KHz.
Vertical Sync polarity: (+) or (-) 55-76Hz
Out of range
Excluding
Horizontal 31~80 KHz or
Vertical 55-76 Hz
Message “Input Not Supported” on screen
4.4DDC data
4.4.1 EDID Standard Compliance
EDID File Format : VESA’s EDID Standard Version1.0, Revision 12,
EDID Structure : Version #1, Revision #3.
EDID Data Table : See the attached table (for example)
B193HQ 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 6B 00 00 00 00 00
1 00 00 01 03 08 29 17 78 EA 3D 85 A6 56 4A 9A 24
2 12 50 54 BF EF 90 01 01 81 00 81 80 81 40 71 4F
3 01 01 01 01 01 01 66 21 56 AA 51 00 1E 30 46 8F
4 33 00 9A E6 10 00 00 1C 00 00 00 FF 00 30 30 30
5 30 30 30 30 30 30 30 30 30 0A 00 00 00 FD 00 37
6 4C 1F 50 09 00 0A 20 20 20 20 20 20 00 00 00 FC
7 00 42 31 39 33 48 51 0A 20 20 20 20 20 20 00 CS

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B193HQ 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 6B 00 00 00 00 00
1 00 00 01 03 80 29 17 78 EA 3D 85 A6 56 4A 9A 24
2 12 50 54 BF EF 90 01 01 81 00 81 80 81 40 71 4F
3 01 01 01 01 01 01 66 21 56 AA 51 00 1E 30 46 8F
4 33 00 9A E6 10 00 00 1C 00 00 00 FF 00 30 30 30
5 30 30 30 30 30 30 30 30 30 0A 00 00 00 FD 00 37
6 4C 1F 50 09 00 0A 20 20 20 20 20 20 00 00 00 FC
7 00 42 31 39 33 48 51 0A 20 20 20 20 20 20 00 CS
V193HQ 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 6D 00 00 00 00 00
1 00 00 01 03 08 29 17 78 EA 3D 85 A6 56 4A 9A 24
2 12 50 54 BF EF 90 01 01 81 00 81 80 81 40 71 4F
3 01 01 01 01 01 01 66 21 56 AA 51 00 1E 30 46 8F
4 33 00 9A E6 10 00 00 1C 00 00 00 FF 00 30 30 30
5 30 30 30 30 30 30 30 30 30 0A 00 00 00 FD 00 37
6 4C 1F 50 09 00 0A 20 20 20 20 20 20 00 00 00 FC
7 00 56 31 39 33 48 51 0A 20 20 20 20 20 20 00 CS
V193HQ 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 6D 00 00 00 00 00
1 00 00 01 03 80 29 17 78 EA 3D 85 A6 56 4A 9A 24
2 12 50 54 BF EF 90 01 01 81 00 81 80 81 40 71 4F
3 01 01 01 01 01 01 66 21 56 AA 51 00 1E 30 46 8F
4 33 00 9A E6 10 00 00 1C 00 00 00 FF 00 30 30 30
5 30 30 30 30 30 30 30 30 30 0A 00 00 00 FD 00 37
6 4C 1F 50 09 00 0A 20 20 20 20 20 20 00 00 00 FC
7 00 56 31 39 33 48 51 0A 20 20 20 20 20 20 00 CS

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4.5Audio signal
Items Specification
Input impedance ≧10K ohm
Frequency response range 200Hz – 20kHz
Signal to noise ratio ≧40 dB
Output power ≧1.0 W + 1.0 W ( 10%THD )
5. 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 AUO
Model name M185XW01-V0
Display Area 409.8 ( H ) x230.4 ( V ) , 18.5” diagonal
Pixel Pitch 0.3(H) x 0.3(V)
Display Colors: 16.7 Million (RGB 6-bit + HiFRC)
Number of Pixel 1366x768 pixels
Pixel Arrangement RGB vertical stripe
Brightness 300cd/m2(Typ.) 250cd/m2(Min.)
Contrast Ratio 1000:1 Typical
Viewing Angle 85°(L)/ 85°(R), 80°(U)/80°(D) typ. CR>=10)
Display Mode Normally White
Frame rate 60Hz
Response Time Tr + Tf = 5ms Typical
Surface Treatment Anti-glare, Haze = 25%,
Hard coating (3H)
Lamp 2 CCFL
Outline Dimension 430.37(W)x254.6(H)x16.5(D) 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

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[MENU]
A. When OSD isn’t shown on screen, press [MENU] to enter OSD interface. The OSD
interface uses “ACER e Color Management” and “User” to instead “Contrast” and
“Brightness” separately. When press “ACER e Color Management” to show “e Color
OSD”, and press “User” to show OSD interface before. The translations of “ACER e
Color Management” and “User” are always English.
B. When OSD displays, press [MENU] to perform function of menu icon that is highlight or
enter next level menu
[►], [◄]
A. When “MENU OSD” displays, press these keys to change the contents of an
adjustment item, or change an adjustment value
B. When “MENU OSD” un-displays, if it is with audio, press [►] to show “Audio” OSD and
increase the volume, press [◄] to show “Audio” OSD and decrease the volume; else
it has no use to press these keys.
[e Color ]
A. When OSD un-displays, press [e Color] to show “e Color OSD”, and press again the
OSD can not disappear, but the time of “e Color OSD” disappearing is reset 10 second
again.
B. When OSD disappear not including “e Color OSD”, press [e Color] to show “e Color
OSD” OSD, the OSD before disappears, but the parameters of it should be saved
[POWER] Power on or power off the monitor
5.2.2 Hot Key Operation
HOT KEY OPERATION
FUNCTION
AUTO
e Color ◄►MENU POWER
FACTORY MODE ●●ON
Press [e Color ] & [MENU] at the
same time, and then press
[POWER] for DC power on. OSD
menu will be shown with “F”on the
left top. Select “F”for entering
factory mode.
5.3 OSD Structure
The On-Screen Display (OSD) shall be an easy to use icon based menu through keypad OSD buttons or remote
control unit. The unit shall leave the factory with all OSD controls set to their default values.
First Second Third Control Range Default Value
ACER eColor Management
empowering
Technology
--- Standard mode
User mode 50
Text mode 50
Standard mode 50
Graphics mode 60
Contrast 0 ~ 100
Movie mode 56
Brightness
User
Brightness 0 ~ 100 User mode 77

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Text mode 44
Standard mode 77
Graphics mode 97
Movie mode 77
ACM OFF
Focus --- 0 ~ 100 Depend on each timing
Image
Clock --- 0 ~ 100 50 ○1
H. Position --- 0 ~ 100 50
Position
V. Position --- 0 ~ 100 Depend on each timing
Warm (6500K) --- ---
Cool (9300K) --- ---
Red 0 ~ 100 80
Green 0 ~ 100 80
Color
User
Blue 0 ~ 100 80
NO-EMEA EMEA
English English
--- ---
Deutsch Deutsch
--- ---
Español Español --- ---
Language
简体中文 Dutch --- ---
English
5.4 Upgrade firmware SOP
1. System Frame
2. Function Description
A. ISP ON

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Set In-System Programming Enable
B. ISP OFF
Set In-System Programming Enable
C. Load File
Load Hex File to Buffer
D. Erase
Erase MCU Fash Rom
E. Program
Write Buffer Data to MCU Flash Rom
F. Auto
ISP ON→Erase→Promgram→ISP OFF
G. View Hex
View Hex File in Buffer
H. CheckSum
Read Data from MCU
3. Initial Setting
A. After Setup EasyWriter, We must set EasyWriter settings according our environment.
B. In “Option”, Select “Setup ISP tool”

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C. How to Setting
zConnect to Novatek ISP Board by USB, Select “NVT EasyUSB”.
zUSB IIC Speed Limit, Suggestion : Select “Low Speed”.
zAfter Setting, Select “Comfirm Change” to confirm your change.
4. How to Program File to MCU Flash Rom
A. Step 1. Load Hex File to Buffer
zSelect “Load File” Button
zSelect File Type “Bank Switch(128k, 256k)
zSelect *.H00(* = FW Project Name(define in KeilC)

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zSelect Confirm, Load File OK
B. Step 2. Set In-System Programming Enable
zSelect “ISP ON”, Enable ISP

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C. Step 3. Erase MCU Fash Rom
zSelect “Erase”, Erase Flash,Avoid Conflict
D. Step 4. Write Buffer Data to MCU Flash Rom
zSelect “Program”, Program Buffer Data to Flash
E. Step 5. Set In-System Programming Disable
zDisable ISP, Start MCU

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F. Auto Mode
zStep2 ~ Step5 = “Auto”
zAfter Step 1,we can select “Auto” directly,to run Program File to MCU Flash Rom
5.5, BV193HQ EDID SOP
1、Software
a.port95nt.exe
b.Edidtool.exe
c.BV193HQ model
2、Hardware
a.PC（winXP or win2000）1PCS；
b.Tool（EDID Card、VGA cable & DVI cable)

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3. .First set up Port95nt.exe
4 . Click next button continually then can finish setting.

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5. EDID Tool Set up
A : USB interface provide +5V DC power（No Power is ok ）
B : Connect DDC Card and PC with collateral interface ；
C :VGA、DVI use different cable to link DDC and PC
6. EDID ISP Card:
A
B
C
A B
C
A：Collateral printing interface
(connect with PC)
B:VGA interface (one VGA connect
with PC to provide signal for monitor
the other one connect with PC VGA
interface to write VGA EDID, Write
EDID can without providing signal)
C : DVI interface (connect with PC)
D : HDMI Interface
E : Connect DC power+5V

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7. Writing EDID process :
Model name CheckSum
Result
State
information
MFG
week
Model
name
SN
BV193HQ
BV193HQ
System time