Acer A231H Service manual

Acer
Acer –LCD-A231H
Service Manual
LCD Monitor Acer A231H
1
Table of Contents
Important Safety Notice
.........................................................................................02
01
Product Specification ..........................................................................................03
02
Flat Panel Specification .......................................................................................15
03
Exploded Diagram ..............................................................................................36
04
Troubleshooting ....................................................................................................37
05
Spare Parts List ...................................................................................................42
06
Schematics and Layouts.......................................................................................43
07
Assembly and Disassembly ................................................................................46
Appendix : User’s manual
Copyright
Copyright 2010 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 A231H Service Manual
1
Acer
Acer –LCD-A231H
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:
This 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.
Do 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.
Do not remove the monitor cabinet. There are high-voltage parts inside that may cause electric
shock to human bodies.
Stop using the monitor if the cabinet is damaged. Have it checked by a service technician.
Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable
immediately and consult your closed dealer.
Always 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.
Do not place heavy objects on the monitor or power cord.
z
z
z
z
z
z
z
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
z
When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.
z
Keep wires away from high voltage, high temperature components and sharp edges.
z
Keep wires in their original position so as to reduce interference.
z
Adjustment of this product please refers to the user’ manual.
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Acer –LCD-A231H
01 Product Specification
1. General:
Acer A231H is designed with LVDS interface and VGA/DVI-D/HDMI(option) 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 1920x1080 full screen display. The
image can be adjusted through OSD control. It support HDCP and color management function.
1.1 Main Features
Features
Maximum resolution
Back light system
Pixel pitch
Display area
Contrast ratio
Brightness
Response time (Tr+Tf)
Viewing angle
Input interface
Audio system
Power management
Plug & Play
University AC power supply
OSD language
Specifications
1920 x 1080 @ 60Hz
4 CCFL
265.2 um (H) x 265.2 um (V)
509.76mm (H) x 286.74mm (V)
1000‫׃‬1 (TYP.) /80000:1(ACM ON)
250cd/m² (TYP.)
5ms (typ.)
160° (H)/ 160°(V), (TYP.)
Analog (D-sub 15 pin)
Digital Option (DVI-D 24 pin & HDMI 19Pin)
1.5 W *2
Compatible with VESA, DPMS
VESA DDC/CI
YES
English, Deutsch, Español, 简体中文, 繁體中文, Français,
For Non-EMEA
Italiano, 日本語
For EMEA
English, Deutsch, Español, Dutch, Russian, Français,
Italiano, Finnish
Acer
Acer –LCD-A231H
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
O pt io n
●
●
●
●
●
●
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
0°C (Relative Humidity is as low as possible), 12 hrs.
Low Temperature
High Temperature
+40°C / 20% R.H., 12 hrs.
High Humidity
+32°C/ 80% R.H., 12 hrs
Altitude
12,000 feet at 25°C (hold 3.5 hrs)
Storage
-30°C / humidity not controlled
Low Temperature
High temperature &low humidity +65°C/ 10% R.H.
Test Profile
Max. Wet Bulb Temp
Altitude
+25°C/ 50%R.H.(2hrs)-> -30°C/ No R.H.(12hrs).-> +41°C/ 90%
R.H.(12hrs)->+65°C/ 10% R.H.(12 Hrs)->+25°C/ 50% R.H.(2hr)
39°C
40,000 feet at -30 °C (hold 1 hr)
Notice:1.Altitude Ramp rate: <= 3,500 feet per minute
2. Packed properly with PE bag, cushion material, carton & seal tape
3. power off when test storage
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Acer –LCD-A231H
2.2 Safety, EMC, Ergonomics and Compatibility Requirements
EMC
Safety
EMC&Safety
Ergonomics
Compatibility
Power Management
Windows 95/98/Me/2000/XP/VISTA/7
Energy Star 5.0
2.3 Electrostatic Discharge Requirements
Item
Electrostatic
Discharge
Condition
Spec
Contact discharge: 4KV
IEC61000-4-2(EN55024) Contact discharge: 8KV
Air discharge
: 8KV
Air discharge
: 15KV
2.4 Reliability
Items
MTBF
CCFL Life time
Condition
Operating condition
is 25°C
Luminance
becomes 50%
Spec
Note
≧ 50,000 Hours
≧ 50,000 Hours(Typ)
Note1
Note1. Display an all WHITE field at mid Brightness and Contrast settings.
●
●
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Acer –LCD-A231H
3. Electrical and Optical Characteristics and Performance
3.1 Main Power Supply
3.1.1 Input characteristics
Items
Condition
Spec
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
AC Input Current
100Vac
1.5A(max)
240Vac
0.8A(max)
100Vac,cold star,25°C
35A (max)
240Vac,cold star,25°C
70A(max)
DC output full loading
≥80%
Inrush Current
AC-DC power Efficiency
Note2.
Note
See 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
Ripple and Noise
DC Output Voltage
Condition
Spec
Note
+25V output
+5V output
<800mv
<500mv
Audio 5V output
+25V output
<500mv
<480mv
+5V output
<100mv
Audio 5V output
<100mv
25V loading:0.3A~1.4A
5V loading:0.75A~1.5A
Audio 5V: 0A~1.2A
25v loading:0.1A~1.5A
5V loading: 0A
Vcc25V:23.2V~28V
Vcc5V: 4.75V~5.25V
Audio 5V: 4.95V~5.45V
Vcc25V: 23.8V~30V
Vcc5V: 4.75V~5.25V
Vcc5V/1.8A,
Vcc25V/1.4A
Audio 5V: 1.5A
<20mS
AC input: 100V~240V
>10mS
DC output loading
capability
Rise Time
With system See note 3
With dummy Load
For system active
For power saving or DC
off
Dynamic load change
Hold-up time
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. Ripple voltage of +25V is less than 1500mv when enter into burst mode.
3.1.3 Protection characteristics
Protection
Condition
Spec
OPP
nominal AC input
SCP(short circuit protection)
with auto-recovery function
OVP(Over voltage protection)
Auto recovery
60W ( min )
<output capacitor voltage
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Acer –LCD-A231H
OTP(Over temperature protection)
Fuse protection
Table-1
Status
H-sync
Power On
Power Saving
Power Off
V-sync
Video
Power
on
on
active
≤55W
Blue
off
on
blanked
< 1W
Amber
on
off
blanked
< 1W
Amber
off
off
blanked
< 1W
Amber
--
--
--
< 1W
Off
3.2 Backlight Power Supply
Panel: LTM230HT02
Items
Specification
Lamp
4 CCFL
Input Voltage
23.8---28V
Input current
1.2A (Typ.), 1.4A (Max.)
On/Off switch level
3.6V≧V on≧ 2.0 V (on)
-0.3v ≤ V off ≤ 0.8 V (off)
Brightness PWM Duty (ACM Off)
35%~100%
Brightness PWM Duty (ACM On)
3%~100%
CCFL operating Voltage
875Vrms (Typ.),
CCFL Current
7.5mA (Typ.)
8.0mA (Max.)
CCFL startup voltage
≧1840 Vrms (0˚C)
CCFL startup voltage
≧1510 Vrms (25˚C)
Operating frequency
40~60 KHz
Protect delay time
> 1 second
Efficiency
≥75%
Note: Other panels please refer to the reference panel specs.
LED
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Acer –LCD-A231H
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
: 1920 x 1080
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 BL ≥ 200 cd/m2 .
3.4 White balance
The test standard conditions refer to Sec 3.3. (Brightness and contrast are under default value)
Mode
Cool
Warm
User
9300K
6500K
Chromaticity Coordinate
x
y
0.283 ± 0.030
0.297 ± 0.030
0.313 ± 0.030
0.329 ± 0.030
Panel While x
Panel While y
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Acer –LCD-A231H
3.5 Brightness uniformity
The test standard conditions refer to Sec 3.3.
Min. luminance of nine points (backlight)
≥75%
Max. luminance of nine points (backlight)
4. Input / Output Signal Specifications
4.1 AC in
4.1.1
AC Input Voltage: 100~240VAC
4.1.2
AC Input Current: 1.2A @100Vac, 0.6A @240Vac
4.1.3
AC Frequency Range: 50~60Hz
4.2 Audio in (Option)
4.2.1
Input impedance ﹕ ≧ 10K ohm
4.2.2
Frequency response range ﹕200Hz ~ 20kHz
4.3HDMI in(Option)
HDMI type A Connector Pin assignment:
19
18
17
16
Pin
1
2
3
4
5
15
14
13
12
11
10
Symbol
TMDS Data2+
TMDS Data2 shield
TMDS Data2TMDS Data1+
TMDS Data1 shield
9
8
7
6
Pin
11
12
13
14
15
5
4
3
2
Symbol
Cable detect
TMDS ClockCEC
N/C
SCL
1
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Acer –LCD-A231H
6
7
8
9
10
TMDS Data1TMDS Data0+
TMDS Data0 shield
TMDS Data0TMDS Clock+
16
17
18
19
SDA
DDC/CEC Ground
+5V Power
Hot Plug Detect
4.4 DVI-D in
DVI-D Connector Pin assignment:
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Symbol
TMDS Data 2TMDS Data 2+
TMDS Data 2/4 shield
N/C
N/C
DDC Clock
DDC Data
Analog Vertical Sync
TMDS Data 1TMDS Data 1+
TMDS Data 1/3 shield
N/C
N/C
+5V Power
Cable detect
Pin
16
17
18
19
20
21
22
23
24
Symbol
Hot Plug Detect
TMDS Data 0TMDS Data 0+
TMDS Data 0/5 shield
N/C
N/C
Clock shield
Clock +
Clock -
4.5 VGA in
4.5.1
D-sub Connector Pin assignment:
Pin
1
2
3
4
5
6
7
8
Symbol
Red Video
Green Video
Blue Video
N/C
Cable detect
Red Ground
Green Ground
Blue Ground
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Acer –LCD-A231H
9
10
11
12
13
14
15
PC +3.3/+5V
Sync. Ground
N/C
DDC SDA
H sync
V sync
DDC SCL
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4.5.2
Acer –LCD-A231H
Signal SPEC:
Items
Analog RGB signal
Sync
H-Sync Frequency
V-Sync Frequency
Condition
Input impedance =75 Ohm
Input impedance ≧1k Ohm
Specification
0.7Vp-p
TTL level, Separate H/V-sync(+/-)
31K~83KHz
56~76Hz
4.6 Timing table
Mode
MAC
VESA
SVGA
XGA
VESA
SXGA
VESA
WXGA
WXGA+
WSXGA+
UXGA
Note:
Resolution
(active dot)
Resolution
Horizontal
Vertical
(total dot) Frequency (KHz) Frequency (Hz)
Nominal Pixel
Clock (MHz)
Write in EDID
640x480@60Hz
640x480@72Hz
640x480@66.66Hz
720x400@70Hz
800x600@56Hz
800x600@60Hz
800x600@72Hz
1024x600@60Hz
1024x768@60Hz
1024x768@70Hz
1152x864@75Hz
1280x960@60Hz
1280x1024@60Hz
800 x 525
832 x 520
864x525
900x449
1024 x 625
1056 x 628
1040 x 666
1312x622
1344x806
1328x806
1600x900
1800x1000
1688x1066
31.469
37.861
35
31.469
35.156
37.879
48.077
37.320
48.363
56.476
67.5
60
63.981
59.941
72.809
66.66
70.087
56.250
60.317
72.188
60.000
60.004
70.069
75
60
60.020
25.175
31.500
30.24
28.322
36.000
40.000
50.000
48.964
65.000
75.000
108
108
108.000
1280x720@60Hz
1280x800@60Hz
1360x768@60Hz
1440x900@60Hz
1680x1050@60Hz
1600x1200@60Hz
1650x750
1680x831
1792x795
1904x931
2240*1089
2160x1250
44.955
49.702
47.712
55.935
65.290
75.000
59.940
59.810
60.015
59.887
59.954
60.000
74.176
83.500
85.500
106.500
146.250
162.000
23H
N/A
23H
23H
23H
23H
N/A
N/A
24H
24H
26H~27H
N/A
25H
N/A
28H~29H
N/A
2AH~2BH
N/A
N/A
1920x1080@60Hz
2576x1120
67.158
59.963
173.000
2C~2D
1920x1080@60Hz
2200x1125
67.500
60.000
148.500
36H~46H
1920x1080@60Hz
2080x1111
66.587
59.934
138.500
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
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Acer –LCD-A231H
4.7 HDMI timing table(For HDMI Module)
For DVD Player Input, Attached timing is supported :
Mode
Resolution
Pixel Clock MHz
H sync KHz
V sync Hz
VGA
NTSC (480i) 4:3
NTSC (480i) 16:9
NTSC (480p) 4:3
NTSC (480p) 16:9
PAL (576i)
PAL (576p) 4:3
PAL (576p) 16:9
720p
720p
1080i
1080i
1080P
1080P
640 x 480p
720 x 480
720 x 480
720 x 480
720 x 480
720 x 576
720 x 576
720 x 576
1280 x 720
1280 x 720
1920 x 1080
1920 x 1080
1920 x 1080
1920 x 1080
25.2
13.50
13.50
27.00
27.00
13.50
27.00
27.00
74.25
74.25
74.25
74.25
148.50
148.50
31.5
15.73
15.73
31.47
31.47
15.63
31.27
31.27
37.5
44.96
28.125
33.72
56.250
67.50
60
60
60
60
60
50
50
50
50
60
50
60
50
60
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4.8 Audio output SPEC(For Audio Module)
Specification
Items
TEST CONDITIONS
Min
TYP
MAX
Output power (W)
1.2
1.5
1.8
THD+N = 10%﹐AT 1KHz 1Vrms
Output impedance (Ω)
3.4
4
4.6
AT 1KHz 1Vrms
Total harmonic distortion plus noise
---
---
10%
Signal to noise ratio (dB)
40
---
---
PWM frequency (KHz)
200
250
300
Po≦ 2.0W
THD+N≦ 5%
Note: The low pass RC Filter (R=100Ω / C=0.047uF) for Class-D Output Power and THD+N Measurement
4.9 DDC data
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)
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4.9.1
Acer –LCD-A231H
VGA EDID table
0
4.9.2
2
3
4
5
6
7
8
9
B
C
D
E
F
00
04
72 C9 00
45
23
01
01
0
00
FF FF FF FF FF FF
1
0A
14
01
03
2
12
50
54
B3 0C 10
71
4F
81
3
01
01
01
01
01
01
02
3A
4
45
00 FD 1E
11
00
00
5
36
48
0A
20
20
20
6
4C
1F
53
12
00
7
00
30
30
30
2
3
08
33 1D 78 EA 60
A
85 A6 56
4A 9C 25
00
81
80
00 D1 C0
80
18
71
38 2D 40
1A
00
00
00 FC 00
20
20
20
20
00
0A
20
20
20
20
30
30
30
30
30
4
5
6
7
00
95
50
58 2C
32
33
00
00 FD 00
38
20
20
00
00
00
FF
30
30
30
30
0A
00
78
8
9
A
B
C
D
E
F
04
72 C9 00
45
23
01
01
DVI EDID table
0
4.9.3
1
1
0
00
FF FF FF FF FF FF
1
0A
14
01
03
2
12
50
54
B3 0C 10
71
4F
81
3
01
01
01
01
01
01
02
3A
4
45
00 FD 1E
11
00
00
5
36
48
0A
20
20
20
6
4C
1F
53
12
00
7
00
30
30
30
30
80
33 1D 78 EA 60
85 A6 56
4A 9C 25
00
81
80
00 D1 C0
80
18
71
38 2D 40
1A
00
00
00 FC 00
20
20
20
20
00
0A
20
20
20
20
30
30
30
30
7
00
95
50
58 2C
32
33
00
00 FD 00
38
20
20
00
00
00
FF
30
30
30
30
0A
00
00
8
9
A
B
C
D
E
F
04
72 C9 00
00
00
00
00
HDMI EDID table(For HDMI Module)
0
1
2
3
4
5
6
0
00
FF FF FF FF FF FF
1
00
00
01
03
2
12
50
54
B3 0C 10
71
4F
81
3
01
01
01
01
01
01
02
3A
4
45
00 FD 1E
11
00
00
5
33
48
0A
20
20
20
6
4C
1F
53
12
00
7
00
30
30
30
0
02
03
22
1
10
11
12
2
80
33 1D 78 EA 60
85 A6 56
4A 9C 25
00
81
80
00 D1 C0
80
18
71
38 2D 40
1A
00
00
00 FC 00
20
20
20
20
00
0A
20
20
20
20
30
30
30
30
30
F2
23
09
7F
07
15
93
1F
14
83
00
00 8C 0A D0 8A
20
E0 2D 10
3
21
00
00
18
01 1D 00
4
13
2A
21
00
00
1E
72
95
48
58 2C
32
33
00
00 FD 00
38
20
20
00
00
00
FF
30
30
30
30
0A
01
92
4E
01
02
03
84
05
06
07
01
00
00
66
03 0C 00
10
10 3E 96
00
13
2A
51 D0 1E 20 6E
28
55
00
20
58 2C
01 1D 80
18
71 1C 16
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5
25
00
13
2A
21
00
00
9E
01 1D 00 BC 52 D0 1E
6
B8
28
55
40
13
2A
21
00
00
1E
01 1D 80 D0 72 1C
7
16
20
10 2C 25
80
13
2A
21
00
00 9E 00
00
00
20
FF
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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
Item
Describe
Supplier
SEC
Model name
LTM230HT02
Display Area(mm)
509.76× 286.74
Pixel Pitch(mm)
0.2655(H) ×0.2655(V)
Display Colors
16.7M colors (RGB 6-bit + Hi_FRC)
Number of Pixel
1920(H) × 1080(V),Full HD
Brightness
250 cd/m2 (TYP.)
Contrast Ratio
1000 (TYP.)
Viewing Angle
160 (Horizontal) / 160(Vertical) (CR≧10)
Display Mode
Normally White
Response Time
5ms (TYP. ON/OFF)
Surface Treatment
Anti-Glare, 3H
Lamp
4 CCFLs
Outline Dimension
534.0(W) ×311.7(H) ×12(D)
Notice: Other second panel pls refer to panel spec
(TYP.)
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Acer –LCD-A231H
5.2 Optical characteristic of LCD panel
The test methods for the below items’ definition, please refer to the specification of INL MT230DW01 panel.
Item
Unit
Viewing Angle
(CR >= 10)
Contrast ratio
Response time
Color Chromaticity
(CIE)
Color Coordinates (CIE)
White
Luminance Uniformity
White Luminance at center
point
Conditions
Right
[degree] Horizontal
Left
Up
[degree] Vertical
Down
Normal Direction
[msec]
Rising + Falling
Red x
Red y
Green x
Green y
Blue x
Blue y
White x
White y
[%]
9 points
measurement
[cd/m2]
Min.
Typ.
Max.
70
70
70
70
600
-
-
75%
80
80
80
80
1000
5
0.640
0.349
0.284
0.617
0.142
0.067
0.313
0.329
-
200
250
Typ-0.03
Remark
10
Typ+0.03
-
5.3 Keypad Function
5.3.1 Control buttons
[AUTO]
[MENU]
[◄]
[►]
[e Color ]
A. When OSD un-displays, press [AUTO] and the function menu will show on the screen;
B. When function menu displays, press [AUTO] to perform auto-adjustment;
C. When OSD displays, press [AUTO] to return to previous level menu;
D. When “e Color OSD” OSD displays, press [AUTO] to exit the OSD.
A. When OSD isn’t shown on screen, press [MENU] to enter the function menu;
B. When function menu displays, press [AUTO] to enter the main menu OSD;
C. When OSD displays, press [MENU] to perform function of menu icon that is highlight or
enter next level menu
A. When OSD isn’t show on screen, press [◄] to enter the function menu;
B. When “MENU OSD” displays, press these keys to change the contents of an
adjustment item, or change an adjustment value;
C. When Function menu displays, press [◄] to show “Audio” OSD and decrease the
volume.
A. When OSD isn’t show on screen, press [►]to enter the function menu;
B. When “MENU OSD” displays, press these keys to change the contents of an
adjustment item, or change an adjustment value;
C. When Function menu displays:
a. Press [►] key one time to search (a port with signal in order)
b. Show “source icon” at the same time, as searching that port
c. Go into next port automatically, if search the port without signal
d. Display it, if search the port with signal
D. When the volume menu displays, press [►] to increase the volume.
A. When function menu 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
to 10 seconds 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
Acer
Acer –LCD-A231H
[POWER]
Power on or power off the monitor
5.3.2 Hot Key Operation
HOT KEY OPERATION
FUNCTION
FACTORY
MODE
e Color AUTO MENU ◄ ► POWER
●
ON
DESCRIPTION
Press [e], 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.
Acer
Acer –LCD-A231H
5.4 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
Fourth
Control
Range
Default Value
---
---
---
---
---
---
Main menu (Pictiure)
---
---
---
Audio menu
---
---
---
---
---
---
Second
e-color
Third
empowering
technology
Auto
Function
Main menu
Menu
Audio
Input
Acer eColor Management
---
---
empowering
---
---
Standard
technology
User mode
Brightness
---
---
0~100
Text mode
44
Standard mode
77
Graphics mode
Movie mode
User mode
Text mode
Contrast
---
---
0~100
Standard mode
Graphics mode
Picture
Movie mode
H.Position
V.Position
---
50
0~100
50
0~100
---
Clock
0~100
1
50 ○
Warm
---
---
Default
Cool
---
---
---
User
Setting
0~100
Focus
Colour Temp
OSD
---
Red
0~100
80
Green
0~100
80
Blue
0~100
80
Auto Config
---
---
OSD Timeout
---
---
--10~120
--10
Full
---
---
Default
Aspect
---
---
---
DDC/CI
---
---
---
ON
ACM
---
---
---
OFF
Analog
---
---
---
Wide Mode
Source
77
97
77
50
50
50
60
56
Acer
Acer –LCD-A231H
Language
Info
Digital
---
---
---
HDMI
---
---
---
EMEA
NO-EMEA
---
---
English
English
---
---
Russian
繁體中文
---
---
Deutsch
Deutsch
---
---
Français
Français
---
---
Español
Español
---
---
Italiano
Italiano
---
---
Dutch
简体中文
---
---
Finnish
日本語
---
---
English
Reset
---
---
---
---
Resolution
---
---
---
---
H.Freq
---
---
---
---
V.Freq
---
---
---
---
Input Type
---
---
---
---
S/N
---
---
---
---
1 Clock default 50 is for Visa timing. Others depend on timing.
Notes: ○
Acer
Acer –LCD-A231H
5.5 OSD Translation
Main menu (NO_EMEA)
English
(英语)
繁體中文
Deutsch
(德语)
Français
(法语)
Español
(西班牙语)
Italiano
(意大利语)
简体中文
日本語
Picture
畫面
Bild
Image
Imagen
Immagine
画面
ピクチャー
Brightness
亮度
Helligkeit
Luminosité
Brillo
Luminosità
亮度
輝度
Contrast
對比
Kontrast
Contraste
Contraste
Contrasto
对比度
コントラスト
H.Position
水平位置
H.Position
H.Position
H.Posicion
O.Posizione
水平位置
水平位置
V.Position
垂直位置
V.Position
V.Position
V.Posicion
V.Posizione
垂直位置
垂直位置
Focus
相位
Fokus
Netteté
Nitidez
Nitidezza
相位
フェーズ
Clock
時脈
Takt
Fréquence
Reloj
Orologio
时序
クロック
Colour Temp
色溫
Farbtemp.
Temp. Couleur Temp. Color
Temp. Colore
色温
色溫度
Warm
暖色溫
Warm
Chaud
Càlido
Caldo
暖色温
暖色
Cool
冷色溫
Kalt
Clair
Frio
Freddo
冷色温
寒色
User
使用者設定
Anwender
Utilisateur
Usuario
Utente
使用者设定 ユーザー設定
Red
紅色
Rot
Rouge
Rojo
Rossa
红色
赤
Green
綠色
Grün
Vert
Verde
Verde
绿色
緑
Blue
藍色
Blau
Bleu
Azul
Blu
蓝色
青
Auto Config
自動調整
Autom. Abgl. Autoréglage
Autoajuste
Autoregolazione
自动调整
自動調整
OSD
OSD
OSD Timeout
OSD 顯示時間
OSD-Dauer
設定
Setting
設定
Wide Mode
Délai de l'OSD
T. de espera
Intervallo OSD
OSD
OSD 显示时 OSD 表示時間
间设定
設定
Einstellung
Réglages
Configuración Impostazione
设置
設定
寬螢幕模式
Vollbild
Plein écran
Completa
Schermo intero
宽屏模式
ワイドモード
Full
全螢幕
Vollbild
Plein écran
Completa
Pieno
全屏
全画面
Aspect
Aspect
Input
輸入
Eingang
Entrée
Entrada
Input
输入
入力
言語
Langue
Idioma
Lingua
语言
Restaurer
Reiniciar
Resetare
恢复出厂模
リセット
式
Bitte warten
Veuillez
patienter
Espere, por
favor
Attendere prego
请稍待
お待ちくださ
い
資訊
Info
Informations
Información
Informazioni
信息
情報
Exit
結束調整
Beenden
Quitter
Salida
Uscita
退出菜单
終了
Enter
進入
Eingabe
Entrez
Introducir
Invio
进入
選択
Move
移動
Beweg.
Dépla.
Mover
Muovi
移动
移動
ON
開
EIN
Allumé
ACTIVADO
ATTIVA
开启
オン
OFF
關
Aus
OffEteinte
Apagado
Spento
关闭
オフ
Volume
音量
Lautstärke
Volume
Volumen
Volume
音量
音量
Language
語言
Sprache
Reset
恢復出廠模式 Rücksetzen
Please Wait
請稍待
Information
Message menu: (NON_EMEA)
Acer
English
(英语)
Acer –LCD-A231H
繁體中文
Deutsch
(德语)
Français
(法语)
Español
(西班牙语)
Italiano
(意大利语)
简体中文
日本語
Auto Config
Please Wait
自動調整
請稍待
Autom. Abgl.
Bitte warten
Autoréglage
Veuillez
patienter
Autoajuste
Espere,
porfavor
Autoregolazione
Attendere prego
自动调整
请稍待
自動調整
お待ちくださ
い
Cable Not
Connected
無訊號線
連接
Leitung nicht
angeschlossen
Câble non
connecté
Cable no
conectado
Cavo non
connesso
信号线
无连接
ケーブルが接
続されて
いません
Input Not
Supported
不支援
輸入訊號
Frequenzen
nicht
unterstützt
Fréquences
non
supportées
Frequencias
no
soportadas
Frequenza
non supportata
输入
不支援
入力はサポー
トされて
いません
No Signal
無訊號
Kein signal
Pas de signal
Sin señal
Assenza segnale 无讯号
信号なし
Color management OSD (scenario OSD) language: (NON_EMEA)
English
(英语)
繁體中文
Deutsch
(德语)
Français
(法语)
Español
(西班牙语)
Italiano
(意大利语)
简体中文
日本語
Standard
標準
Standard
Standard
Estándar
Standard
标准
標準
Text
文字
Text
Texte
Texto
Testo
文本
テキスト
Graphics
圖形
Grafiken
Images
Gráficos
Grafica
图形
グラフィック
ス
Movie
電影
Spielfilm
Film
Película
Film
电影
ムービー
User
使用者
Benutzer
Utilisateur
Usuario
Utente
用户
ユーザー
Adjust/Exit
調整/結束
Abstimmen/Bee
Ajuster/Quitter Ajuste/salir
nden
Regola/Esci
调节/退出
調整/終了
Select
選擇
Auswahl
Seleziona
选取
選択
Sélectionner
Seleccionar
Main menu (EMEA)
English
(英语)
Russian
(俄语)
Deutsch
(德语)
Français
(法语)
Español
(西班牙语)
Italiano
(意大利语)
Dutch
(荷兰语)
Finnish
(芬兰语)
Picture
Изображ.
Bild
Image
Imagen
Immagine
Beeld
Brightness
Helligkeit
Luminosité
Brillo
Luminosità
Helderheid Kirkkaus
Kontrast
Contraste
Contraste
Contrasto
Contrast
Kontrasti
H.Position
H.Position
H.Posicion
O.Posizione
H. positie
Vaakasijainti
V.Position
V.Position
V.Posicion
V.Posizione
V. positie
Pystysijainti
Fokus
Netteté
Nitidez
Nitidezza
Clock
Яркость
Контрастно
сть
Полож. по
гориз.
Полож. по
верт.
Фокусировк
а
Частота
Takt
Fréquence
Reloj
Orologio
Colour Temp
Цвет.темп.
Farbtemperatur Temp. Couleur Temp. Color
Temp. Colore
Warm
Теплый
Warm
Chaud
Càlido
Caldo
Scherpstell
Tarkennus
ing
Klok
Taajuus
Värin
Kleurtemp.
lämpöisyys
Warm
Lämmin
Cool
Холодный
Kalt
Clair
Frio
Freddo
Koel
User
Пользоват. Anwender
Utilisateur
Usuario
Utente
Gebruiker Käyttäjä
Red
Красный
Rot
Rouge
Rojo
Rossa
Rood
Punainen
Green
Зеленый
Grün
Vert
Verde
Verde
Groen
Vihreä
Contrast
H.Position
V.Position
Focus
Kuva
Viileä
Acer
Blue
Auto Config
Acer –LCD-A231H
Синий
Blau
Автонастро
Autom. Abgl.
йка
Bleu
Azul
Blu
Autoréglage
Autoajuste
Autoregolazione
Intervallo OSD
OSD
OSD
OSD Timeout
Вр. отобр.
Меню
OSD-Dauer
Délai de l'OSD
T. de espera
OSD
Setting
Настр.
Einstellung
Réglages
Wide Mode
Широкоэк.р
Bildformate
еж.
Full
Полное
Aspect
Aspect
Input
Blauw
Sininen
Autom.conf Autom.
iguratie
asetukset
Time-out
OSD
Aikakatkaisu
Configuración Impostazione
Instelling
Asetus
Mode Large
Modo
panorámico
Modo Wide
Breedbeeld
Laajakuva
modus
Vollbild
Plein écran
Completa
Pieno
Volledig
Täysikuva
Вход
Eingang
Entrée
Entrada
Input
Ingang
Tulo
Language
Язык
Sprache
Langue
Idioma
Lingua
Taal
Kieli
Reset
Сброс
Rücksetzen
Restaurer
Reiniciar
Resetare
Opn.instellen Nollaus
Please Wait
Подождите Bitte warten
Veuillez
patienter
Espere, por
favor
Attendere prego
Een ogenblik
Odota
geduld
Informations
Información
Informazioni
Informatie
Informaatio
Quitter
Salida
Uscita
Afsluiten
Lopeta
Exit
Информаци
Info
я
Выход
Beenden
Enter
Ввод
Eingabe
Entrez
Introducir
Invio
Enter
Syötä
Move
Переме
Beweg.
Dépla.
Mover
Muovi
Verpl.
ON
Вкл
EIN
Allumé
ACTIVADO
ATTIVA
AAN
OFF
Выкл
Aus
OffEteinte
Apagado
Spento
Uit
Liiku
PÄÄLLÄ
<ON>
Pois päältä
Volume
Громкость
Lautstärke
Volume
Volumen
Volume
Volume
Äänenvoim.
Information
Message menu: (EMEA)
English
(英语)
Russian
(俄语)
Deutsch
(德语)
Français Español
(法语) (西班牙语)
Italiano
(意大利语)
Dutch
(荷兰语)
Bezig met
Autoréglage Autoajuste
Autoregolazione automatische
Veuillez
Espere, por
Attendere prego configuratie, een
patienter
favor
ogenblik geduld
Auto Config
Please Wait
Автонастро
йка,
Autom. Abgl.
подождите.. Bitte warten
.
Cable Not
Connected
Кабель не Leitung nicht
Câble non
подключен angeschlossen connecté
Cable no
conectado
Input Not
Supported
Вход не
Frequenzen
поддержива nicht
ется
unterstützt
No Signal
Нет сигнала Kein signal
Frequencias
Frequenza
no
non supportata
soportadas
Assenza
Sin señal
segnale
Fréquences
non
supportées
Pas de
signal
Cavo non
connesso
Finnish
(芬兰语)
Autom.
asetukset.
Odota
Kabel niet
aangesloten
Kaapeli ei
kiinni
Ingang niet
ondersteund
Tuloa ei tueta
Geen signaal
Ei signaalia
Color management OSD(scenario OSD) language: (EMEA)
English
(英语)
Russian
(俄语)
Deutsch
(德语)
Français
(法语)
Español
(西班牙语)
Italiano
(意大利语)
Dutch
(荷兰语)
Finnish
(芬兰语)
Standard
Стандарт
Standard
Standard
Estándar
Standard
Standaard
Vakio
Text
Текст
Text
Texte
Texto
Testo
Tekst
Teksti
Acer
Acer –LCD-A231H
Graphics
Изображен
Grafiken
ие
Images
Gráficos
Grafica
Grafische
Grafiikka
Movie
Кино
Film
Película
Film
Film
Elokuva
Utente
Gebruiker
Käyttäjä
Regola/Esci
Aanpassen/v
Säädä/Lopeta
erlaten
Seleziona
Selecteren
Spielfilm
Пользовате
Benutzer
Utilisateur
Usuario
ль
Настроить Abstimmen/Be
Ajuster/Quitter Ajuste/salir
/Выход
enden
Auswahl
Выбор
Sélectionner
Seleccionar
User
Adjust/Exit
Select
6. Mechanical
6.1 Dimension
Dimension
Width
Height
Depth
Monitor Weight
Spec
553mm
409mm(W/Base),352mm(W/O Base)
172mm(W/Base),63mm(W/O Base)
5.5±0.3Kg for INL panel(INL panel 3.05Kg)
Remark: If phase in other second panel, the Monitor weight =2.45Kg+second panel weight ±0.3Kg
6.2 Cabinet Material
Cabinet Material
Spec
Cabinet Plastic Material
ABS HB
Front Bezel
Back Cover
Base
Cabinet Texture
BLACK
BLACK
BLACK
ACER SPECIFICATION
6.3 Mechanical Specification
Mechanical
Bezel Gap Specification
Screen printed Parts
Spec
≦1.3mm
Front bezel
6.4 Base Mechanical Interface
items
Spec
Tilt
Compliance with TCO03, -4°(+/-1°) ~+14°(+/-1°)
Wall Mount
100mm x 100 mm
Valitse
Acer
Acer –LCD-A231H
7. Package
7.1 Unit Package Specification
7.1.1 Units package
Items
Spec
Packaging
Refer to ME PACKING SPEC
Ink
COLOR
Length
620+/-2.0mm
Height
483+/-2.0mm
Width
146+/-2.0mm
Gross Weight
7.7±0.5kg for INL panel (INL panel weight 3.05Kg)
Units per Pallet
59sets/pallet
40’ /20’ Container Loading, Palletized
1180sets/590sets
Remark: If phase in other second panel, the Gross weight =4.65Kg+second panel weight ±0.3Kg
7.1.2 Unit Packing Vibration
Testing with vibration shall be done in each of three mutually perpendicular axes. Axes are referenced to the
position of system as it normally sits in front of user, i.e., Front-to-back, side-to-side and top-to-bottom.
7.1.2.1 Random Vibration
Items
Description
Sweep Frequency
Amplitude
Duration Time
1~200Hz
1.14 Grms
30 minute each axis
Direction
3 mutually perpendicular axes (x, y, z)
RANDOM VIBRATION SPECTRUM BREAK POINTS
Frequency (Hz)
PSD, G2/Hz
1
0.0001
4
0.01
100
0.01
200
0.001
Acer
Acer –LCD-A231H
7.1.3
7.1.4
Non operation Thermal Shock Test
Item
Description
Temperature
-200C to 600C
Reset cycles times
25ºC>60ºC (10hrs)>25ºC (2hrs)>-20ºC (10hrs)>25ºC
3cycles ,every transition time 0.5 hr,
Total cycles
3 cycles
Package Drop
Drop height (Select drop height according to the gross weight refer to the table at below)
1.0<W≦9.0
Gross Weight(kg)
76
Drop Height(cm)
√
Drop sequence and orientation
Drop
Drop onto
Type Drop
Step 1
Corner(2-3-5)of package
Step 2
Edge(3-5)
of package
Edge
Step 3
Edge(2-3)
of package
Edge
Step 4
Edge(2-5)
of package
Edge
Step 5
Face(bottom-3)of package
Flat
Step 6
Face(left-4) of package
Flat
Step 7
Face(front-5) of package
Flat
Step 8
Face(right-2) of package
Flat
Step 9
Face(rear-6) of package
Flat
Step 10
Face(Top-1) of package
Flat
Figure
Corner
Mechanical and electrical damage should not exist after vibration test, and shall be submitted for approval customer before
mass production.
8. Marking and Identification
8.1 S/N Label
The approval marking is required by the countries of sales destination.
8.2 Carton label
The approval marking is required by the countries of sales destination.
Acer
Acer –LCD-A231H
02. Flat Panel Specification
Acer
Acer –LCD-A231H
03 Exploded Diagram
3.1. Screw List
Item
Part No.
Description
1
509146306200R
SCREW,P,CROSS,W/WAS,M3*6,Zn-Cc
2
509000000700R
3
509212608120R
4
509116610500R
Qty
Fixed
T(kg*cm)
Remark
I/F Board to Chassis*1
6
6.5±0.5
BOLT,#4-40x11.8,Ni ROHS
4
3.75±0.25
SCREW,F,CROSS,T4*8,Zn,ROHS(5.8~6.2)
3
10±0.5
Hinge to Stand
3
12±0.5
Hinge to back-cover
SCREW,P,CROSS,M4*10,BLK-Zn(NYLO
K),ROHS
3.2. LCD Exploded drawing (All)
Power Board to Chassis*4
D-SUB CON*2
DVI CON*2
Acer
Acer –LCD-A231H
04 Troubleshooting
1.No Power & Power LED Off
No power
Check primary rectifier
voltage
Check circuit if
short
Check IC802,
C804, T801,
Check F801, P801,
RT801,D801
Check pin6 of IC802
CheckC810,D803,C807,
voltage about 16V
Check pin2 of IC802 voltage
Check primary OVP, OLP and secondary
about 3V
feedback, OVP circuit
END
Acer
Acer –LCD-A231H
2.DC output voltage is unstable
Unstable power
Check
Check sampling
R822,R825,R826,
Circuit
R822,R825,R826,
Check the R pin
Check the C pin
voltage of IC803
voltage of IC803
Check R832
Check pin6 of
Check D803,C807,C810
IC802 voltage
Change
Check R805,R814,R815
Check pin3 of
IC802 voltage
END
Change
Acer
Acer –LCD-A231H
3.Backlight can’t be turned on
No raster?
Yes
LED Green?
Yes
Backlight can’t be
turned on.
Yes
Is there 5Vdc voltage
No
Check power
on pin2 of IC501?
supply
Yes
Is there high-level voltage on
No
Yes
Check I/F board
Is Ok R505?
pin6 of IC501?
Yes
No
R505 open
No
Are connected rightly
Connecting the
CN501, CN502, CN503 and
output connector
CN504?
again
Yes
Yes
No
Is there instantaneously pulse
wave on pin1, pin16 of IC501
Is Ok IC501?
U501, U502 fail
at the moment of restart?
No
Yes
IC501 fail
No
T501fail
Is ok T501?
Yes
Check feedback circuit
ISEN1,ISEN2,VSEN,OLP1,OLP2
END
Acer
4. Black screen
Acer –LCD-P236H
Acer
5. White Screen
Acer –LCD-P236H
Acer
6. Bad Screen
Acer –LCD-P236H
Acer
Acer –LCD-A231H
05 Spare parts List
PARTNAME
ACER PART
NO.
OEM PART NO
DESCRIPTION
MAIN
BOARD
55.LNW0J.001 795611300800R PCBA,IF/B(A09,EMEA,W/SPK),LE23ER-812 ROH
POWER
BOARD
55.LNW0J.002 795611400800R PCBA,PI/B,W/SPK,LE23ER-812 ROHS
KEYPAD
BOARD
55.LNX0J.001 795691500800R PCBA,KEYPAD/B,LE23EY-812 ROHS
LVDS
CABLE
50.LK60J.002 430303003160R HRN LVDS FFC 30P 220mm W/CORE&TASTE
CABLE
50.LNW0J.001 430301001890R HRN ASS'Y 2x5P to 8P 320mm UL1571#28 Con
CABLE
27.LBN0J.001 453070801190R PWRCORD 16A/250V BLK 6FT VDE/KTL H05VV-F
CABLE
50.L63VF.003 453030300120R CABLE AUDIO 1P 6FT BLACK/GREEN CP03B06P0
CABLE
50.LBQ0J.001 453010100380R CABLE,D-SUB 15P MALE 6FT BLACK/BLUE, ROH
CABLE
50.LA10J.003 453030300370R CABLE,DVI-D 18+1P MALE 6FT BLACK , ROHS
STAND
60.LNX0J.001 71401E23EY00R ASSY STAND LE23EY
CHASSIS
60.LNW0J.004 70108E23ER03R ASSY,CHASSIS,W DVI SPK,SEC,LE23ER
FRONT
BEZEL
60.LNX0J.002 71403E23EY00R ASSY FRONT BEZEL LE23EY
8231EY81A120R
CN
Acer
Acer –LCD-A231H
COVER
60.LNX0J.003 71405E23EY00R ASSY BACK COVER SEC 1A1D LE23EY
BASE
60.LNX0J.004 71402E23EY00R ASSY BASE LE23EY
STAND UP 42.LNX0J.001 50126E23EY00R STAND UP LE23EY
SPEAKER
23.LK60J.001 618100103150R SPEAKER 1.5W 4Ω 100&120mm
R/B/G W/CASE
PANEL
LK.23006.014 631102230260HA LCP 23"LTM230HT01-A09(A)(SAMSUNG)HF
Acer
Acer –LCD-A231H
06 Schematics and Layouts
6.1 IF BD Layout
Acer
6.2 Power BD Layout
Acer –LCD-A231H
Acer
6.3 Keypad BD Layout
Acer –LCD-A231H
Acer
6.4 IF BOARD schematics and Power Supply circuit
Acer –LCD-A231H
5
VDDP_33
+3.3V
4
AVDD_33
3
2
1
AVDD_33 VDDC_18
+3.3V
VDDP_33
AVDD_18
3
RED+
3
RED3
GREEN+
3
GREEN3
SOG
3
BLUE+
3
BLUE3
HSYNC
3
VSYNC
3 DDC_SDA_VGA
3 DDC_SCL_VGA
GND
VCC5V
2
1
LED_B_C
R162
1K/NC
3
R159
9
10
12
13
15
16
18
19
5
6
4
RX2+
4
RX24
RX1+
4
RX14
Rx0+
4
RX04
RXC+
4
RXC4 DDC_SDA_DVI
4 DDC_SCL_DVI
R161
NC/0
Q106
PMBT3906/NC
28
27
25
24
470 C152 0.047u/16V 26
23
22
32
33
34
35
AVDD_33
R144
390 1%
R163
330/NC
R0603
LED_B
R164
C148
1u/16V
NC/0
RIN0P
RIN0M
GIN0P
GIN0M
SOGIN0
BIN0P
BIN0M
HSYNC0
VSYNC0
DDCA_SDA/RS232_TX
DDCA_SCL/RS232_RX
119
120
121
122
123
124
2
GPIO_P15/PWM0
GPIO_P16/PWM2
GPIO_P23/PWM1
GPIO_P41
3
4
36
48
GPIO_P24/PWM2
GPIO_P27/PWM1
50
51
GPIO_P03/PWM3
GPIO_P12/PWM3
GPIO_P26/PWM2
73
109
125
7
I2C_MCL/GPIO_P10
I2C_MDA/GPIO_P11
39
38
REXT
31
REFP
GPIO_P42
GPIO_P04
49
47
REFM
GPIO_P05
GPIO_P22
46
45
30
10K
10K
10K
10K
10K/NC
10K
10K
10K
10K/NC
R171
R172
R184
R174
R139
R140
R220
R179
R181
58
54
114
40
59
87
107
112
60
65
66
71
103
21
RX2P
RX2N
RX1P
RX1N
RX0P
RX0N
RXCKP
RXCKN
DDCD_SDA
DDCD_SCL
GPIO_P17/SAR0
GPIO_P00/SAR1
GPIO_P01/SAR2
GPIO_P02/SAR3
GPIO_P06
GPIO_P07
GPIO_P14/PWM0
4.7K
4.7K
4.7K
C143
C144
C145
C146
C147
0.1/16V 0.1/16V 0.1/16V 0.1/16V 0.1/16V
VCC5V
R150
R151
R152
+
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VCTRL
C142
22u/16V
AVDD_33
AVDD_33
AVDD_33
D
AVDD_18
U105
60 VDDC
VDDC
VDDC
VDDC
AVDD_18
FB105
8
14
20
VDDC_18
+1.8V
53
74
104
126
GND
VCC5V_DET
R154
100
R155
100
C166 0.1/16V/NC
R182
20K/NC
R221
R125
R160
1K
1K
R153
100
ADC_KEY1
ADC_KEY2
LED_B_C
LED_A_C
LED_G_C
VOLUME 2
0/NC
R157
100
R158
100
MUTE
2
KEY2
VGA_DET 3
HPD_CTRL 4
KEY1
WP_FW
R188
D
GND
C141 0.1/16V
C161 0.1/16V
C149 0.1/16V
C139 0.1/16V
C138 0.1/16V
C137 0.1/16V
C136 0.1/16V
C135 0.1/16V
C134 0.1/16V
C133 0.1/16V
C160 0.1/16V
C159 0.1/16V
+
C156 0.1/16V
C150
22u/16V
C154 0.1/16V
60 C155 0.1/16V
FB102
PANEL_ENABLE 2
CCFL_ENABLE 2
BRIGHTNESS 2
4K7
SCL_OSD
SDA_OSD
R216
1K
DVI_DET 4
WP_EDID 3,4
R146
WP_OSD
1K
+3.3V
C165
0.1/16V
2
R177
10K
1
3 LED_A_A
LED_A_CC
R186
LED_A_CC
NC/PMBT3904
NC/30K
R187
NC/10K
2,3,4
LVBCKM
LVBCKP
LVB3M
LVB3P
LVA0M
LVA0P
94
93
92
91
86
85
RXOCRXOC+
RXO3RXO3+
RXE0RXE0+
LVA1M
LVA1P
84
83
RXE1RXE1+
82
81
80
79
78
77
RXE2RXE2+
RXECRXEC+
RXE3RXE3+
108
RST
LVB0M
LVB0P
LVB1M
LVB1P
LVB2M
LVB2P
R147
0
128
XIN
R148
0
127
XOUT
X101
14.31818MHz
C164 1u/16V
C158 22p/50V
C174
NC/10u/10V
VDDP_33
R149
102
C153 0.1/16V
10K/NC
10K
R165
330
R0603
R167
R0603 100/NC
R175
37
LVA2M
LVA2P
LVACKM
LVACKP
LVA3M
LVA3P
BYPASS
MODE
RXO0RXO0+
RXO1RXO1+
RXO2RXO2+
RXOCRXOC+
RXO3RXO3+
RXE0RXE0+
RXE1RXE1+
RXE2RXE2+
RXECRXEC+
RXE3RXE3+
R180
NC/100K R110
C157 22p/50V
2
LED_A_A
LED_A
GND
VCC5V
RXO0RXO0+
RXO1RXO1+
RXO2RXO2+
SDO
CSZ
SCK
SDI
PM25LV010A-100SCE
VCC5V
Q105
1
SO
CS#
SCK
SI
41
42
43
44
1
11
17
29
52
72
88
101
105
106
68
69
63
62
113
75
76
89
90
57
56
55
61
64
70
67
110
111
115
116
117
118
3
R166
1K
R178
0
R191
1K
R192
10K
LED_A_C
100K
Q107
PMBT3906
VCC
HOLD#
WP#
GND
2 SDO
1 SCZ
6 SCK
5 SDI
CN103
FFC-CON
100
99
98
97
96
95
U108
8
7
3
4
WP_FW
C
TSUMU58NHJ-LF-1
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
LVA4P/GPO[7]
LVA4M/GPO[6]
LVB4P/NC
LVB4M/NC
NC/GPO[0]
NC/GPO[2]
NC/GPO[4]
NC
NC
NC
NC
NC/GPIO_P43/PWM0
NC/GPIO_P25/PWM1
NC
NC
NC
NC
R189
R190
10K/NC 10K
VCC5V
RL111
RL112
RL113
0/NC
0/NC
0/NC
RL114
0/NC
R0603
LPIN6
LPIN5
GND
2
GND
VLCD
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C
CON--PI-AL230C
VCC5V
2
R176
10K
1
3 LED_G_G
B
LED_G_C
R169
1K
3
Q108
PMBT3906
LED_G_CC
R195
LED_G_CC
R183
0
RXO0RXO0+
2
NC/PMBT3904
R185
NC/10K
LED_G_G
R168
220
R0603
RXO1RXO1+
C176
NC/10u/10V
CN104 Pin definition
R170
100/NC
LED_G
CN104 Pins
NC/100K R111
R0603
The Green section is added for Touchpad function key
1 (KEY1)
Auto
SDA
MENU
SCL
3 (ADC_KEY2)
POWER
5 (LED_A)
LEFT
LED_BLUE
RXO3RXO3+
RESET
+5V
LED_ORANGE
VLCD
MENU
RIGHT/LEFT
1
2
3
4
5
6
7
8
9
10
KEY1
ADC_KEY1
GND
RXO0RXO0+
RXO1RXO1+
RXO2RXO2+
RXOCRXOC+
RXO3RXO3+
RXE0RXE0+
RXE1RXE1+
RXE2RXE2+
RXECRXEC+
RXE3RXE3+
LPIN6
LPIN5
GND
GND
CON--PI-AL230C
2
GND
7 (LED_G)
ADC_KEY2
LED_B
LED_A
8 (KEY2)
LED_YELLOW
RIGHT
LED_BLUE
VLCD
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CON--HR-200PHD2X15ST
FOR SINGLE LVDS INPUT
POWER
LED_G
KEY2
0/NC
LED_G
POWER
6 (GND)
TSUMU58NHJ-LF-1
InnoLux
+3.3V
Document Number :
R194
C173 1000p/50V
C172 1000p/50V
C171 1000p/50V
0/NC
R193
5P35V
C170 1000p/50V
EP103
5P35V
5P35V
C169 1000p/50V
EP102
To Keypad
Board
C168 1000p/50V
C167 1000p/50V
AUTO
E-Color
LED_A
EP101
CON--HR-200PHD2X05ST
A
RXOCRXOC+
FHX2300(Dual) Maestro 242DX
2 (ADC_KEY1)
4 (LED_B)
CN104
2x4P 2.0mm
RXO2RXO2+
B
CN107
FFC-CON/NC
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Q109
1
NC/30K
CN105
FFC-CON/NC
R138
4K7
R137
4K7
GND
WP_OSD
R142
100
R143
100
SCL_OSD
SDA_OSD
VCC
WP
SCL
SDA
A0
A1
A2
GND
TITLE :
1
2
3
4
CHECK BY :
SCALER
2010-01-25
DATE :
AT24C16AN
GND
SHEET
5
4
3
APPRO BY :
A2
C140
0.1/16V
U106
8
7
6
5
SIZE :
2
5
OF
5
DRAWN BY :
Rev :
1
V01
A
3
2
R827 0
C805
2200p/400V
T801
SPW-101
1
D
14
D801
1
+
BL4-06
+
3
R805
68K 2W
C804
150u/450V
ZD803
P6KE150A
13
C806
4700p/400V
C815
330p/500V
D804
SF50-04F69-LF
D805
SF50-04F69-LF
D806
SF50-04F69-LF
D802
MUR1100ERL
10
-
4
27V
+
+24V 3,4
Q801
2N4401
2
+
C839
C830
C818
270u/50V 270u/50V 0.1/50V
R816
10
D807 SRF10-06CT-LF
1
2
3
R836
1
0R47 2W
2
+
3
D808
SRF10-06CT-LF C819
1000u/10V
R829
10
C836
2200p/500V
9
3
5
D803
+ 1N4003
C807
47u/25V
MOV801
R831
510 2W
ZD801
R828
1K 1%
D
R818
10K
C816
2200p/500V
2
2
1
3
4
1
5
11
12
6
10D471
+5V
VCC5V
L802
5uH
F802
5A/125V
+
+
C823
1000u/10V
C820
470u/16V
C822
0.1/50V
6
USB 5V
F803
NC
C
Gate
17mH
1
Isense
2
GND
3
FB
4
SD
5
VDD
6
NC
7
Vin
8
2
R802 1M
R801
1M
1
C828
4700p/400V
R815
0R47 2W
IC801
LTV817M
4
1
3
2
R820
NC
C821
0.1/100V
C801
1000p/400V
A
2
N
P801
AC_SKT
1
L
4
C802
1000p/400V
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
6
USB 5V
2
B
CN802
1
2
3
4
C
PSC
R
A
0.1/50V
3
F801
3.15A/250V
5
1
C826
NC
R821
1K 1%
R833
1K 1%
4
C842
4
R826
10K
C827
NC
IC804 NC
LTV817M
RT801
NTC 5R
R825
100K 1%
R832
270
B
TO SCALER BD CN801
CN801
C841
0.1/50V
C840
470u/16V
R822
4K7 1%
AudioVCC5V
R814
10K
CON8PIN
C803
0.47/275V
C837
1000u/10V
C808
47P/1KV
3
3
+
4
Q804
AP2763I
1
+
CN803
L801
2
C
IC803
TLV431ALP
R823
NC
6
R824
3K3 1%
usb5v
100mm 4PR
VCC5V
NC
C825
0.1/50V
ON/OFF
3
BRIGHTNESS 3
VOLUME
6
MUTE
6
HDMI_AUDIO_L 6
HDMI_AUDIO_R 6
AUDIO_SW
PSC
P236H
InnoLux
Document Number :
SIZE :
Custom
6
6
A
TITLE :
16P 2.0mm
CHECK BY :
POWER SUPPLY
2010-01-15
DATE :
2
SHEET
5
4
APPRO BY :
3
2
OF
6
DRAWN BY :
Rev :
V01
1
5
4
3
2
1
R849
NC
R850
NC
D
D
R808
33K
CN804
C810
0.1/50V
R806
33K
R851
NC
R803
NC
R804
NC
7
C812
NC
B
NC
RT
OUT
IC802
LD7575 CS
R807
100K 1%
2
3
GND
4
FB
5
GND
6
VDD
7
NC
8
HV
CON8PIN
C811
1000p/50V
R844
NC
C809
220p/50V
B
C838
NC
P236H
InnoLux
Document Number :
D812
NC
SIZE :
A
APPRO BY :
TITLE :
CHECK BY :
POWER Control
A
2010-01-15
DATE :
SHEET
5
Isense
3
R809
680R
COMP
2
C
R813
20
5
Gate
4
1
HV
GND
8
VCC
6
C
1
4
3
3
6
OF
2
DRAWN BY :
Rev :
V02
1
A
5
4
3
2
C509
2.2u
+24V
R501
5.1k
C527
NC
C508
2.2u
3
D501
5.6V
C532
1000P 0805
1
U502
AP9575GH
C507
2.2u
2
0
DRIV
2
C512
47n
1
U501
AP9971GH
C506
2.2u
R512 100k
3
D
R526
VDDA
0
10R
C502
1u 0805
R504
C
270k
R521
NC
PWM
R503
180k
C503
100p
R505
PWM
IC501
VCC5V
DRV1
DRV2
16
2
VDDA
GND
15
3
SEL
SSTCMP
14
4
RT1
OLP2
13
5
RT
OLP1
12
6
PWM
VSEN
11
7
PID
ISEN2
10
ISEN1
9
8
BRIGHTNESS
TIMER
1
BRIGHTNESS
2
VCC5V
3
R507 10R
1
CN506
D502
10R
R502
2
1
BAT54
C525
0.1uF/50V
VS4
VS3
C505
47n
VS1
OP1
R508 100k
OP2
R509 100k
VSEN
R529 2k
IS1
R532 0
R510
VS2
DRIV
R522 470R
OP1
100k
+24V
R517 220R
IS2
R531 0
100k
R511 100k
R523 NC
INL816
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Briness
on/off
+5V
VS4
Is2
Op2
VS3
GND
VS1
Op1
Is1
Vs2
DRIV
DRIV
GND
GND
+25V
+25V
NC
NC
R527 470R
VDDA
IS1
0
CON 20PIN
R506 100k
C526
1.0u 0805
R518 150R
C504
1.0u 0805
R524 470R
OP2
0
B
R519 220
D503 BAV70
VS4
R525 NC
R528 470R
VS3
VSEN
C518
8.2nF/50V
C517
8.2nF/50V
C521
C522
NC
IS2
R514
30k
R513
30k
R520 150R
0
0
NC
InnoLux
D504 BAV70
Document Number :
VS2
VS1
A
C519
8.2nF/50V
C520
C524
8.2nF/50V NC
C523 NC
P236H
R515
30k
R516
30k
APPRO BY :
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A4
TITLE :
CHECK BY :
INVERTER SUPPLY
0
0
2010-01-15
DATE :
SHEET
4
OF
6
DRAWN BY :
Rev :
V01
A
5
4
3
2
1
T501
SPW-169
1
1
5
D
OP12
C528 NC
2
CN505
C
NC
NC
+25V
+25V
GND
GND
DRIV
DRIV
Vs2
Is1
Op1
VS1
GND
VS3
Op2
Is2
VS4
+5V
on/off
Briness
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
4
C513
12p/3KV
H
L
CN501
4100-D02
VS1
+25V
T502
SPW-169
1
VS2
IS1
OP1
VS1
1
5
C529
NC
2
VS3
OP2
IS2
VS4
IS1
2
C514
12p/3KV
4
H
L
CN502
4100-D02
VS2
0
T503
SPW-169
+
C501
VCC5V
ON/OFF
Briness
270u/50V
1
1
5
C530
NC
CON 20PIN
0
2
4
OP2 2
C515
12p/3KV
H
L
CN503
4100-D02
VS3
T504
SPW-169
FB802
1
1
5
0
B
IS2
C531
NC
0
2
4
2
C516
12p/3KV
H
L
CN504
4100-D02
VS4
InnoLux
P236H
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A
5
4
3
2
1
R712
R713
R714
R715
10K
10K
10K
C708
C709
1000p/50V 1000p/50V
C704 0.1/50V
LI
AR
LI
R702
0/NC
AL
2
AR
4
B IN/OUT
B OUT/IN
3
AL
9
C OUT/IN
D IN/OUT
D OUT/IN
10
R719
C IN/OUT
11
CN704
13
Control A
Control D
12
5
Control B
Control C
6
VSS
7
14
10K
0/NC
A OUT/IN
C706 0.1/50V
10K
R701
A IN/OUT
8
10K
RI
D
U702
1
C705 0.1/50V
R716
2 HDMI_AUDIO_L
RI
R718
2 HDMI_AUDIO_R
C703 0.1/50V
R717
PHONE_JACK
2
L
3
4
5
R
1
10K
P701
D
10K
Audio VCC5V
VDD
LOUT+
LOUTROUTROUT+
4
3
2
1
4P 2.0mm 90°
CD4066BE
Audio VCC5V
1K
R721
3
R722
C
10K
10K
R720
220u/25V
+
C702
C
C701 0.1/50V
Audio VCC5V
2 R723
1K
AUDIO_SW
2
1
Q702
2N4401
Audio VCC5V
15
LOUT-
ROUT-
16
ROUT-
13
LOUT+
ROUT+
14
ROUT+
AR
11
AR
AR
12
AR
AL
9
AL
7
SHUT
5
VOL
EO_L
6
3
AGND
Hp/Sp
4
1
+5V
GND
2
10K
LOUT-
B
R709
LOUT+
MUTE
3
2
VOLUME
R711
100
2
Q701
2 Audio VCC5V
2N4401
10
AL
8
1
2
AL
EO_R
B
+
CN702
2*8P 2.54mm 90°
TO Daughter BD
InnoLux
C707
220u/25V
P236H
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Acer
Acer –LCD-A231H
07 Assembly and disassembly
S1 Release the base from stand.
S2 Release the stand cover.
S3 Screw out the 3 screws in stand.
Acer
S4 Take off the stand.
S5 Release the front bezel at 3 sides
S6 Turn over the monitor, release the back-cover.
Acer –LCD-A231H
Acer
Acer –LCD-A231H
S7 Release the keypad cable and release the keypad board.
S8 Pull out lamp cables and LVDS cable.
S9 Release the chassis.
Acer
Acer –LCD-A231H
S10 Screw out the 4 bolt screws
S11 Release the 6 screws from interface board and power board.
S12 Release the speaker cable.
Acer
S13 Take out interface board and power board.
S14 Take out LCD panel.
Acer –LCD-A231H
Acer
Acer –LCD-A231H
08 FW & EDID upgrade procedure
1. SOP of PCBA ISP Programming (FW TOOL: INL PN 799999942100R/Acer
PN 6K.L46VF.001)
1.1 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_V4.4.2.4
Manufacture of FW IC:PMC/SST/MX
1.2 Operational steps:
1. Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state.
Signal cable
One port of ISP
program card is
connected to PC
2. Adjust ISP programming
Firstly, double click ISP_Tool_ V4.4.2.4 exit and click “Connect ” button; The ISP tool will connect to
monitor automatically, and it will show flash IC type automatically
FW IC
Model
Acer
Secondly﹐download FW software:
(Fig.2).
Acer –LCD-A231H
first select “READ”, and then load
FW software in Rooter
Software
Checksum value
FW BIN file
Thirdly, 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 to lower
Acer
Acer –LCD-A231H
in “I2C Speed Setting”and check Communication Setting. If connect port is print port, please check
port type.
Acer
Acer –LCD-A231H
3. Flow Chart
2. SOP of EDID (EDID TOOL: INL PN 799999942000R/ Acer PN 6K.LBQ0J.001)
2.1 Request of hardware and software:
1. Software
a.port95nt.exe
Acer
b.Edid.exe
c.A231H model
2. Hardware
a. PC(winXP or win2000)1PCS;
b. Tool(EDID Card、VGA cable & DVI cable)
2.2 Operational steps:
1. First set up Port95nt.exe
Acer –LCD-A231H
Acer
2. Click next button continually then can finish setting.
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
Acer –LCD-A231H
Acer
Acer –LCD-A231H
EDID ISP Card:
C
A
B
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 Monitor)
3. Write EDID Process:
3.1 Choose File menu in main menu ,choose Auto Write button,click S/N blank .
Acer
Acer –LCD-A231H
A231H
Acer
Acer –LCD-A231H
3.2 Cloose the Model in main menu, and the password is 1234.
A231H
Acer
Acer –LCD-A231H
3.3 Choose the model, A231H_A(Update VGA) ,A231H_D(Update DVI) .
A231H
A231H_D
A231H_A
Acer
Acer –LCD-A231H
3.4 Input S/N in the Blank , eg:ETLA10C109805111D94023,the program can write directly.
A231H
Acer
Acer –LCD-A231H
3.5 After the process is ok , the program can check that automatically
A231H
Acer
Acer –LCD-A231H
3.6 If write successfully , you can see PASS in the right
A231H
A231H