Acer V223HQ User manual

Acer Acer –LCD-B&V223HQ
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Service Manual
LCD MonitorAcer B&V223HQ

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1
Table of Contents
Important Safety Notice .........................................................................................01
01 Product Specification ..........................................................................................03
02 Flat Panel Specification .......................................................................................18
03 Exploded Diagram ..............................................................................................37
04 Troubleshooting ....................................................................................................39
05 Spare Parts List ...................................................................................................44
06 Schematics and Layouts.......................................................................................45
07 Assembly and Disassembly ................................................................................48
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&V223 HQ 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:
BV223HQ series LCD monitor is designed with a wide screen 21.5” WSXGA+ TFT LCD panel, LVDS interface,
Analog RGB signal input.
It featured with embedded universal AC power supply and audio input. This monitor can support maximum
resolution up to 1920 x 1080@60Hz.
Details in this document DVI referred to is an option function depending on client’s requirement. In our factory,
products should be distinguished by module names.
1.1 Main Features
Maximum resolution : 1920 x 1080 @ 60Hz
Back light system : 4 CCFL (top & bottom edge side)
Pixel pitch : 0.248 (H) x 0.248 (V)
Display area : 476.64(H)x268.11(V) 21.5 inch diagonal
Brightness : ≥240cd/m²
Contrast ratio : Min 600׃1 (20000:1 when ACM on) (1)
Response time (Tr+Tf) : 5ms (2ms for OD model ) (2)
Viewing angle : 170°(H)/ 160°(V), typ (3)
Input interface : Analog (D-sub 15 pin)
Digital Option(DVI-D 24 pin)
Audiosystem :≧1.5 W + 1.5 W
Power management : Compatible with VESA DPMS
Plug & Play : VESA DDCCI
OSD language : English, French, Spanish, Italian, Deutsch, Simplified Chinese,
Traditional Chinese, Japanese (Dutch, Finnish, Russian depend on sale region)
Universal AC power supply
Note (1)(2)(3): This item spec depend on the LCD panel.
1.2 Accessories
AC Power Cord : 1.8 m. (Black. Cord type depend on sale region)
VGA cable : 1.8 m. (15 pin D-SUB, black cable with blue male connector)
User manual : English (640Mb CD)
Warranty card
DVI cable (option) : 1.8 m. (18+1 pin, black cable with white connector)
Audio cable : 1.8m. (1P 6FT BLACK/GREE)
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
2.1.1 Operating:
Temperature range : 0°C to 40°C
Relative humidity : 20% to 90%
2.1.2 Storage note 1:
Temperature range : -20°C to 60°C
Humidity range : 10% to 90%
2.1.3 Altitude
note 2

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Operating 10000 ft (Ta=50, t=24h)
Storage 40000 ft (Ta=30, t=24h )
Note 1: Temperature and relative humidity range must be in the area shown as the following figure due to
panel limited
Note 2: Altitude spec must not over panel spec.
Figure 1 Absolute Ratings of Environment
2.2 Safety, EMC, Ergonomics and Compatibility Requirements
Safety & EMC
cUL, UL, CE, CB, CCC, TUV/EGO,
TUV/ISO-13406-2, C-Tick (N214), VCCI, FCC,
CE, CCC, BSMI, C-Tick
Ergonomics TCO99, TCO03
Compatibility Windows 98/Me/2000, Windows XP, Window
Vista
Power Management Energy Star V4
2.3 Electrostatic Discharge Requirements
The subject unit must withstand ±8KV for contact discharge and ±15KV for air discharge of
Electrostatic Discharge and meet the standard of IEC61000-4-2(EN55024). (without
discharge on VGA/DVI/HDMI pin)
2.4 Reliability
The MTBF of this product shall be greater than 40,000 hours excluding the LCD panel. The LCD panel
life which is defined as the time period for the maximum luminance to reduce to 50% of the initial
value is 40,000 hours minimum at the condition of displaying an all WHITE field at mid Brightness
and Contrast settings.
3. Electrical and Optical Characteristics and Performance
3.1 Main Power Supply
3.1.1 Input characteristics
Items Condition Spec Note
AC Input Voltage range Universal input full range 90~264Vac
AC Input Voltage rating Universal input full range 100~240Vac
AC input frequency range 90~264Vac 47~63Hz
AC input frequency rating 100~240Vac 50~60Hz

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100Vac 1.2A(max)
AC Input Current
240Vac 0.6A(max)
100Vac,cold star,25°C 40A (max)
Inrush Current
240Vac,cold star,25°C 60A(max)
See Note2
AC-DC power Efficiency DC output full loading ≥75%
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.
Hot star not component be damaged.
3.1.2 Output characteristics
Items Condition Spec Note
+16V output <560mv
Ripple and Noise
+5V output <150mv
See note 3
16v loading:0.3A~2.2A
5v loading:0.75A~1.8A
Vcc16V:15.2V~18.5V
Vcc5V: 4.75V~5.25V
For system
active
DC Output Voltage 5v
loading:0.04A~1.8
A
16V loading: 0A
Vcc16V: 15.2V~20V
Vcc5V: 4.95V~5.45V
For power
saving or DC
off
DC output loading capability Vcc5V/1.8A,
Vcc16V/2.2A
Rise Time <50mS
Dynamic load change
Hold-up time AC input: 100V~240V >10mS
Overshoot <10%
Turn on delay time <2S
Power management See Table-1
Note3: Paralleled a 0.1uF ceramic Cap. And 47uF aluminum Cap. Between the end of DC loading side,
Measured band-width=20MHz.
3.1.3 Protection characteristics
Protection Condition Spec
OPP(Over Power protection) nominal AC input 60(min)
SCP(short circuit protection) For 5V output it is must
be shorted before F802 with auto-recovery function
OVP(Over voltage protection)
OTP(Over temperature
tti
)
Fuse protection
Table-1
Status H-sy
nc
V-sy
nc Video Power LED
Power On on on active ≤55W Blue
off on blanked < 2W Orange
on off blanked < 2W Orange
Power Saving
off off blanked < 2W Orange
Power Off -- -- -- < 1W Off

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3.2Backlight
Panel:
Items Specification
Lamp 4 CCFL
Input Voltage 15.2V~18.5V
Input current 1.6A (Typ.), 2.2A (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 750Vrms (Typ.),
2.0 mA (min.)(With PWM Dim)
7.0mA (Typ.)
CCFL Current
8.0mA (Max.)
CCFL startup voltage ≧1700 Vrms (0˚C)
Operating frequency 40~80 KHz
Protect delay time > 1 second
Efficiency ≥70%(with dummy load)
3.3Brightness 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 : 1680 x 1050
Video input level : 700 mV ± 2%
Warm-up time : 30 minutes
Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall
≥250 cd/m2 (as panel spec)
3.4 White balance
The test standard conditions refer to Sec 3.3.(Brightness control is at 100 contrast control is at 50 )
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
3.5 Brightness uniformity
The test standard conditions refer to Sec 3.4.
%
≥75
)(backlightpointsnineofluminanceMax.
)(backlightpointsnineofluminanceMin. (4)

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Fig.3
4. Input / Output Signal Specifications
4.1 Video signals
Analog RGB signal: 0.7Vp-p (Input impedance = 75 Ohm)
Sync: TTL level (Input impedance ≧1k Ohm)
Positive and negative sync of Separate Horizontal/Vertical Sync
Digital : TMDS Signal: (min) ±200mVpp@24Bit
4.2 Signal Timing
Through D-SUB/DVI connectors, this unit can support FH= 31.5~84 KHz, Fv=56~76Hz, with
maximum pixel clock 165MHz input signal and WSXGA+ output. Modes details as below:
VESA MODES
Horizontal Vertical
Mode Resolution Total Nominal
Frequency
+/-0.5KHz
Sync
Polarity
Nominal
Frequency
+/-1Hz
Sync
Polarity
Nominal
Pixel
Clock
(MHz)
640*480@60Hz 31.469 N 59.941 N 25.175
640*480@72Hz 37.861 N 72.809 N 31.500
VGA
640*480@75Hz 37.500 N 75.000 N 31.500
800*600@56Hz 35.156 P 56.250 P 36.000
800*600@60Hz 37.879 P 60.317 P 40.000
800*600@72Hz 48.077 P 72.188 P 50.000
SVGA
800*600@75Hz 46.875 P 75.000 P 49.500
1024*768@60Hz 48.363 N 60.004 N 65.000
1024*768@70Hz 56.476 N 70.069 N 75.000
XGA
1024*768@75Hz 60.023 P 75.029 P 78.750
1152*864@75Hz 67.500 P 75.000 P 108.000
1280*960@60Hz 60.000 P 60.000 P 108.000
VESA 1280*768@75Hz 60.289 N 74.893 P 102.25
1280*1024@60Hz 63.981 P 60.020 P 108.000
SXGA 1280*1024@75Hz 79.976 P 75.025 P 135.000
1 2
5
7 9
L/2 L/10
W/10
W/2
3
4 6
8

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SXGA+ 1400x1050@60Hz 65.317 N 59.978 N 121.75
UXGA 1600*1200@60Hz 75.000 P 60.000 P 162.000
1360*768@60Hz 47.712 P 60.015 P 85.5
WXGA 1280x800@60Hz 49.702 59.81 83.5
WXGA+ 1440*900(Red)@60Hz 55.469 P 59.901 N 88.75
WSXGA+ 1680*1050@60Hz 65.290 N 59.954 N 146.250
WSXGA+ 1920*1080@60Hz 67.500 P 60 P 148.5
IBM MODES
640*350@70Hz 31.469 P 70.087 N 25.175
EGA 720x400@70Hz 31.469 N 70.087 P 28.322
MAC MODES
VGA 640*[email protected] 35.000 P66.667 P 30.240
SVGA 832*624@75Hz 49.725 N 74.550 N 57.283
XGA 1024*768@75Hz 60.241 N 74.927 N 80.000
1152*870@75Hz 68.681 N 75.062 N 100.00
Other MODES
XGA 1024*768@72Hz 57.669 N72.086 N 78.434
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
4.3 Timing requirements
The LCD monitor must be capable of displaying standard resolutions within the vertical frequency range of
56 ~ 75 Hz and the horizontal scan range of 31.5 ~ 84 KHz with maximum pixel clock of 170MHz.
Vertical / Horizontal Sync polarity: positive or negative.
If input signal is out of range of horizontal 31.5~84 KHz or vertical 56-76Hz, or pixel clock large than 165MHz,
message “Input Not Supported” is shown on screen.
4.4 DDC date
V223HQ Analog
0 1 2 3 4 5 6 7 8 9 ABC D E F
0 00 FF FF FF FF FF FF 00 04 72 70 00 00 00 00 00
1 00 00 01 03 08 2F 1E 78 EA DE 95 A3 54 4C 99 26
2 0F 50 54 BF EF 90 A9 40 71 4F 81 40 8B C0 95 00
3 95 0F 90 40 B3 00 02 3A 80 18 71 38 2D 40 58 2C
4 45 00 DD 0C 11 00 00 1F 00 00 00 FD 00 38 4B 1F
5 54 11 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 32 32 33 48 51 0A 20 20 20 20 20 20 00 5F
V223HQ DVI
0 1 2 3 4 5 6 7 8 9 ABC D E F
0 00 FF FF FF FF FF FF 00 04 72 70 00 00 00 00 00
1 00 00 01 03 80 2F 1E 78 EA DE 95 A3 54 4C 99 26
2 0F 50 54 BF EF 90 A9 40 71 4F 81 40 8B C0 95 00
3 95 0F 90 40 B3 00 02 3A 80 18 71 38 2D 40 58 2C

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4 45 00 DD 0C 11 00 00 1F 00 00 00 FD 00 38 4B 1F
5 54 11 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 32 32 33 48 51 0A 20 20 20 20 20 20 00 E7
B223 Analog
B223 Analog
V223W A Analog(OD)
V223W A DVI(OD)
B223W A Analog(OD)
B223W A DVI(OD)
4.5 Audio signal
Items Specification
Input impedance ≧10K ohm
Frequency response range 200Hz – 10kHz
Signal to noise ratio ≧40 dB
Output power ≧1.5 W + 1.5 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 M215HW01 V0
Display Area 476.64(H)x268.11(V) mm
Pixel Pitch 0.248 x 0.248 mm
Display Colors: 16.7 Million (RGB 8-bit data)
Number of Pixel 1920x1080 pixels
Pixel Arrangement RGB vertical stripe
Brightness 300cd/m2(Typ.) 240cd/m2(Min.)
Contrast Ratio 1000:1 (Typ.), 600:1(Min)
Viewing Angle Hor:170°, Ver: 160°(Typ, CR>10)
Brightness Uniformity Min/Max≧0.75
Display Mode Normally White
Response
Time(Tr+Tf) 5ms (Typ.), 8ms (Max.)
Surface Treatment Anti-glare, Hard coating (3H)
Lamp 4 CCFL

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Notes: Other second source panel please refer to the panel specifications.
5.1.2 LCD module defects
LCD module defects check follows IIS. Details refer to panel approval sheet.
Keypad Function
5.1.3 Control buttons
[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
[MENU]
A. When OSD isn’t shown on screen, press [MENU] to enter OSD interface.The OSD
interface uses “ACER eColor Management” and “User” to instead “Contrast” and
“Brightness” separately.When press “ACER eColor Management” to show “e Color
OSD”,and press “User” to show OSD interface before. The translations of “ACER
eColor 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 reseted
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
5.1.4 Hot Key Operation
HOT KEY OPERATION
FUNCTION
e Color AUTO MENU ◄ ► POWER
DESCRIPTION
FACTORY
MODE ●ON
Press [e Color] 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.
5.2 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
C
on
t
ro
l
Range
Default Value
ACER eColor
Management
empower
i
ng
T
echnolo
--- Standard mode
Brightnes
s User Contrast 0 ~ 100 User mode 50

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Text mode 50
Standard
mode
50
Graphics
mode
60
Movie mode 56
User mode 77
Text mode 44
Standard
mode
77
Graphics
mode
97
Brightnes
s 0 ~ 100
Movie mode 77
Focus --- 0 ~ 100 Depend on each
timing
Image Clock --- 0 ~ 100 50 ○1
H. Position --- 0 ~ 100 50
Position V. Position --- 0 ~ 100 50
Warm (6500K) --- ---
Cool (9300K) --- ---
Red 0 ~ 100 80
Green 0 ~ 100 80
Color
User
Blue 0 ~ 100 80
NO
-
EME
A
EMEA
English English --- ---
Deutsch Deutsch --- ---
Español Español --- ---
简体中文 Hollands --- ---
繁體中文 Русский --- ---
Français Français --- ---
Italiano Italiano --- ---
Languag
e
日本語
S
uoma
l
a
i
nen
--- ---
English
H. Position --- 0 ~ 100 50
V. Position --- 0 ~ 100 50
OSD
OSD Timeout --- 10~ 120 20
Analog --- --- ---
Digital --- --- ---
Input
(Dual) DDC/CI ON/OFF ON
I
npu
t
(Analg
only)
DDC/CI ON/OFF ON
Resolution --- --- ---
H. Freq --- --- ---
V. Freq --- --- ---
Analog/Digital --- --- ---
Info
S/N ET000….0000(22)
Reset --- --- --- ---
Exit --- --- --- ---
Notes; ○1 Clock default 50 is for Visa timing. Others depend on timing.

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6. SOP of firmware upgrade
6.1 Operational condition:
Equipment: PC, ISP card, signal cable and power cable.
ESD requirements: antistatic wrists, antistatic gloves (fingers), and connecting cable
Name of ISP program: ISP_Tool_v3.7.5.3
Manufacture of FW IC：PMC/SST/MX
6.2 Operational steps:
1. Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state.
2. Adjust ISP programming
Firstly, double click ISP_Tool_v3.7.5EXEI and open ISP program, then select “Device”, next select
manufacturer model of FW IC, which should be correspondent with that of PCBA FW IC. Double click
Figure One.
Secondly﹐download FW software: first select “READ”, and then load FW software in Rooter
(Fig.2).
FW IC
Model
One port of ISP
program card
is connected to
PC print port.

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Thirdly, select “Connect” and enter ISP MODE as in the following Figure 3.
Software
Checksum
FW software
rooter

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Fourthly, select “AUTO”, and keep its default value. Click “RUN” for beginning programming. There
will be prompting if programming is OK.
Note: if programming fails or success rate is not high, click “Config” and adjust its speed in “E2PROM
DEVICE SETTING”

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◆Flowin
g
chart
After connecting, AC ON,
DC ON
Open ISP program
Choose manufacturer
and model of FW IC
LOAD FW software
Click Connect and enter
ISP MODE
Click AUTO and RUN for
beginning programming
Turn off power if
p
ro
g
rammin
g
is O
K
OK
OK
OK
OK
OK
OK NG
Choose Config
and adjust
pro
g
rammin
g

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02. Flat Panel Specification

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