Acer | H243H - Bmid | Service manual | Acer H243H - Bmid Service manual

Acer
Acer –LCD-H243H
Service Manual
LCD Monitor Acer H243H
-0-
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 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 H243H Service Manual
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Acer –LCD-H243H
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.
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Keep wires away from high voltage, high temperature components and sharp edges.
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Keep wires in their original position so as to reduce interference.
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Adjustment of this product please refers to the user’ manual.
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01 Product Specification
1. General:
H243H is designed with LVDS interface and VGA/DVI-D/HDMI 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 into1920x1080full screen display. The image can
be adjusted through OSD control. It support HDCP and color management function.
1.1 Main Features
Maximum resolution
: 1920(x3) x 1080 @ 60Hz
Back light system
: 4 CCFL (top & bottom edge side)
Pixel pitch
: 276.75 um (H) x 276.75 um (V)
Display area
: 531.36mm (H) x 298.89mm (V)
Brightness
: 300cd/m² (TYP.)
Contrast ratio
: 1000‫׃‬1 (TYP.)
DCR
: 40000:1 (Max)
Response time (Tr+Tf)
: 5ms (TYP. ON/OFF)
(1)
(2)
2ms (Gray to Gray)
Viewing angle
: 170° (H)/ 160°(V), (TYP.)
Input interface
: Analog (D-sub 15 pin)
(3)
Digital Option (DVI-D 24 pin & HDMI 19Pin)
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)
HDMI cable (option)
: 1.8 m. (19 pin, black cable with white connector)
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
Relative humidity
2.1.2
: 0°C to 50°C
: 5% to 90%
Storage note 1:
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Temperature range
Humidity range
2.1.3
: -20°C to 60°C
: 5% to 90%
Altitude note 2
Operating
Storage
10000 ft (Ta=50, t=24h)
30000 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.
2.2 Safety, EMC, Ergonomics and Compatibility Requirements
Safety & EMC
MET, CB, Bauart, CCC, FCC, CE, VCCI-B
Ergonomics
MPRII
Compatibility
Windows 95/98/Me/2000, Windows XP, Window Vista
Power Management
Energy Star
ISO13406-2
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 pin)
2.4 Reliability
The MTBF of this product shall be greater than 25,000 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
3.1.1AC Input Voltage Range
It is a universal type and the input voltage range is from 100 ~ 240Vrms
3.1.2 AC Input Current
1.5A (max) at 100VAC input
0.8A (max) at 240VAC input
AC Frequency Range
The frequency range is from 50Hz to 60Hz
Inrush Current
a. 40A max at cold-start, 25°C, DC output full-loading and 100Vac input
b. 60A max at cold-start, 25°C, DC output full-loading and 240Vac input
Regulator Efficiency
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≥75%
(DC output full loading and nominal AC input voltage range)
Ripple and Noise
Total composite ripple and noise less than 800mV for +25V output, and less than 150mV for +5V output, and 50mV for
+3.3V output tested by DC loading side parallel with a 47uF/EC and 0.1uF/Ceramic. Capacitors and measured band-width
with DC-20MHz
DC Output Voltage and Current
3.1 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 ≥ 240
cd/m2 (as panel spec).
3.2 White balance
The test standard conditions refer to Sec 3.1.( Brightness and contrast are under default value )
Chromaticity Coordinate
Mode
x
Cool
9300K
0.283 ± 0.030
0.297 ± 0.030
Warm
6500K
0.313 ± 0.030
0.329 ± 0.030
Panel While x
Panel While y
User
3.3
y
Brightness uniformity
The test standard conditions refer to Sec 3.1.
Min. luminance of nine points (backlight )
≥75%
Max. luminance of nine points (backlight )
L/10
L/2
4
5
6
1
2
3
7
8
W/10
9
W/2
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4. Input / Output Signal Specifications
4.1 Video signals
Analog RGB signal:
0.7Vp-p
Sync:
TTL level (Input impedance ≧ 1k Ohm)
(Input impedance =
75 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= 31~80 KHz, Fv=55~76Hz, with maximum
pixel clock 165MHz input signal and WSXGA+ output. Modes details as below:
VESA MODES
Mode
VGA
SVGA
XGA
VESA
SXGA
VESA
WXGA
WXGA+
SXGA+
WSXGA+
UXGA
Resolution
640x480
640x480
640x480
800x600
800x600
800x600
800x600
1024x768
1024x768
1024x768
1152x864
1280x960
1280x1024
1280x1024
1280x720
1280x800
1360x768
1440x900
1440x900
1400x1050
1680x1050
1600x1200
1920x1080-R
EGA
720x400
VGA
SVGA
SXGA
640x480
832x624
1152x870
Total
H Frequency
V Frequency
800 x 525
31.469
832 x 520
37.861
840 x 500
37.500
1024 x 625
35.156
1056 x 628
37.879
1040 x 666
48.077
1056x625
46.875
1344x806
48.363
1328x806
56.476
1312x800
60.023
1600x900
67.5
1800x1000
60
1688x1066
63.981
1688x1066
79.976
1650x750
44.955
1680x831
49.702
1792x795
47.712
1904x931
55.935
1936x942
70.635
1864x1089
65.317
2240*1089
65.290
2160x1250
75.000
2080x1111
66.587
IBM MODES
900x449
31.469
70.087
MAC MODES
864x525
35
66.66
1152x667
49.722
74.55
1568x909
68.700
75.000
59.941
72.809
75.000
56.250
60.317
72.188
75.000
60.004
70.069
75.029
75
60
60.020
75.025
59.940
59.810
60.015
59.887
75.000
59.978
59.954
60.000
59.934
Pixel Clock
(MHz)
25.175
31.500
31.500
36.000
40.000
50.000
49.500
65.000
75.000
78.750
108
108
108.000
135.000
74.176
83.500
85.500
106.500
136.750
121.75
146.250
162.000
138.50
28.322
30.24
57.28
84.520
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 55 ~ 76 Hz and
the horizontal scan range of 31 ~ 80 KHz with maximum pixel clock of 190MHz.
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Vertical / Horizontal Sync polarity: positive or negative.
If input signal is out of range of horizontal 31~80 KHz or vertical 55-76Hz, or pixel clock large than 165MHz, message
“Input Not Supported” is shown on screen.
4.1 DDC data
H243H Analog
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
74
00
01
01
01
01
1
00
00
01
03
68
35
1D
78
EA
60
85
A6
56
4A
9C
25
2
12
50
54
AF
CF
00
81
80
71
4F
95
00
95
0F
A9
40
3
B3
00
01
01
01
01
1A
36
80
A0
70
38
1F
40
30
20
4
35
00
13
2A
21
00
00
1A
00
00
00
FC
00
48
32
34
5
33
48
0A
20
20
20
20
20
20
20
00
00
00
FD
00
38
6
4C
1F
53
12
00
0A
20
20
20
20
20
20
00
00
00
FF
7
00
30
30
30
30
30
30
30
30
30
30
30
30
30
00
CS
H243H DVI
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
74
00
01
01
01
01
1
00
00
01
03
80
35
1D
78
EA
60
85
A6
56
4A
9C
25
2
12
50
54
AF
CF
00
81
80
71
4F
95
00
95
0F
A9
40
3
B3
00
01
01
01
01
1A
36
80
A0
70
38
1F
40
30
20
4
35
00
13
2A
21
00
00
1A
00
00
00
FC
00
48
32
34
5
33
48
0A
20
20
20
20
20
20
20
00
00
00
FD
00
38
6
4C
1F
53
12
00
0A
20
20
20
20
20
20
00
00
00
FF
7
00
30
30
30
30
30
30
30
30
30
30
30
30
30
00
CS
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
A
General specifications
Supplier
AUO
Model name
M240HW01-V0
Display Area
531.36 × 298.89
Pixel Pitch
276.75(Per one triad) × 276.75
Display Colors:
16.7M colors (RGB 6-bit + Hi_FRC)
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Number of Pixel
1920 × 1080
Pixel Arrangement
R.G.B. Vertical Stripe
Brightness
300 cd/m2 (TYP.)
Contrast Ratio
1000 (TYP.)
Viewing Angle
170(Horizontal) / 160(Vertical)
Display Mode
Normally White
Frame rate
75
Response Time
5ms (TYP. ON/OFF) / 2ms (Gray to Gray)
Surface Treatment
Anti-Glare, 3H
Lamp
4
Outline Dimension
556.0(W) ×323.2(H) ×16.65(D) (TYP.)
5.2 Keypad Function
5.2.1 Control buttons on the front bezel
CONTROL KEY
KEYS FUNCTION
[POWER]
Power on or power off the monitor
[►], [◄]
A. When “Main OSD” displays, press these keys to change the contents of an adjustment
item, or change an adjustment value
B. When “Main OSD” un-displays, press [►] to show “Audio” OSD and increase the
volume, press [◄] to show “Audio” OSD and decrease the volume .
[MENU]
A. When “Main OSD” un-displays, press [MENU] to enter OSD interface.
B. When “Main OSD” displays, press [MENU] to perform function of menu icon that is
highlight or enter next level menu.
[AUTO]
A. When “Main OSD” un-displays, press [AUTO] to perform auto-adjustment
B. When “Main OSD” displays, press [AUTO] to return to previous level menu
C. When “Empowering Technology OSD” displays, press [AUTO] to exit the OSD
[e Color ]
A. When “Main OSD” un-displays, press [e Color] to show “Empowering Technology
OSD”.
B. When “Main OSD” displays, press [e Color] to exit the OSD, and to show “Empowering
Technology OSD”
[Input select]
A. Press ”input 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
5.3 Hot Key Operation
HOT KEY OPERATION
FUNCTION
e Color
AUTO MENU
◄
►
POWER
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DESCRIPTION
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FACTORY
MODE
●
ON
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.
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
Second
Third
Fourth
Control
Range
Default Value
User
Acer e color
Management
Text
empowering Technology
Standard
---
Standard
Graphics
Movie
Brightness
Picture Contrast
---
---
---
---
H. Position
V. Position
Focus
---
---
Clock
Text mode
44
Standard mode
77
Graphics mode
97
Movie mode
77
User mode
50
Text mode
50
Standard mode
50
Graphics mode
60
Movie mode
56
0~100
50
0~100
50
0~100
---
0~100
50 (1)
---
---
---
Cool
---
---
---
User
Setting
0~100
77
Warm
Color Temp
OSD
0~100
User mode
Red
0~100
80
Green
0~100
80
Blue
0~100
80
Auto Configure
---
---
---
H. Position
---
---
0~100
Depending on the keypad
position
V. Position
---
---
0~100
3
OSD Timeout
---
---
10~120
10
Wide Mode
DDC/CI
Full
---
---
Aspect
---
---
ON
---
---
9
---
Full
ON
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OFF
ACM
Input
Language
Info
ON
---
---
VGA
---
---
DVI
---
---
HDMI
---
---
OFF
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
---
---
Reset
---
---
---
Resolution
---
---
---
H. Freq
---
---
---
V. Freq
---
---
---
Input Type
---
---
---
S/N
---
---
---
OFF
---
English
---
(2)
Notes: (1) Clock default 50 is for Visa timing. Others depend on timing.
(2) Depend on timing & S/N
6. SOP of firmware upgrade (Manufacturer of Scaler is Mstar)
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.exe
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.
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One port of ISP
program card
is connected to
PC print port.
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.
FW IC
Model
Secondly﹐download FW software: first select “READ”, and then load FW software in Rooter (Fig.2).
FW software
rooter
Software
Checksum
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Thirdly, select “Connect” and enter ISP MODE as in the following Figure 3.
Fourthly, select “AUTO”, and keep its default value. Click “RUN” for beginning programming. There will be prompting if
programming is OK.
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Note: if programming fails or success rate is not high, click “Config” and adjust its speed in “E2PROM DEVICE SETTING”
After connecting, AC ON,
DC ON
◆Flowing chart
OK
Open ISP program
OK
Choose manufacturer
and model of FW IC
OK
LOAD FW software
OK
Click Connect and enter
ISP MODE
OK
Choose Config
and adjust
programming
Click AUTO and RUN for
beginning programming
OK
NG
Turn off power if
programming is OK
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2. Flat Panel Specification
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03 Exploded Diagram
3.1 H243H_SCREW_LIST
ITEM
1
2
3
4
PN
Q'T
Fixed
Y(P
T(kg*cm)
CS)
Description
509146306 SCREW,P,CROSS,W/WAS
200R
,M3*6,Zn-Cc
SCREW,F,CROSS,M4*8,B
509216608
LACK,NL,ROHS(NYLOK
110R
)
509412610
SCREW B CROSS T
500R
T-4*10 BLK ROHS
509000000
BOLT,#4-40x11.8,Ni
700R
3.2. LCD Exploded drawing (All)
39
Remark
7
6.5±0.5
For
NVBD/PWRBD/HDMI
4
12±1
For Hingle toBack cover
3
8.5±0.5
For Hingle to Stand Front
4
4.0±0.25
For D-SUB CON&DVI
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04 Troubleshooting
4.1 No Power & LED Off
Unstable power
Check sampling
Circuit
NG
Check F801,
R808,R806
NG
Change F801,
R808,R806
Check the R pin voltage
of IC803 about 2.5V
NG
Check the C
pin voltage of
IC803 if 3V
Change
IC803
NG
yes
Check R832,IC801
Check pin6 of IC802
voltage is 14V
NG
Check
FB801,D803,C8
07,C810 if short
yes
Change
FB801,D803,C807,
C810
yes
Check pin2 of
IC802 voltage
above 0.85V
NG
Change R815, R 809, R848,
R 849, R850,R851,C809,
yes
END
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4.2
No raster
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4.2 Black screen
Black Screen
Check power supply:
Pin 1, 2 of CN104
NG
POWER Fail
NG
Check U101,
U102
NG
Check C161,
R183
OK
Check power supply:
For U104
OK
Check reset:
pin 8 of U104
OK
Check Crystal
waveform
Pin 25,26 of U104
Check X101, C156,
C157,R191
NG
OK
Check CCFL_Enable
Pin 101 of U104
OK
Check Pin 7 of CN104
NG
Inverter Fail
OK
Check Q102,
R101, R102
NG
U104 fail
42
Acer
Acer –LCD-H243H
4.4
Bad Screen
Bad Screen
Check LVDS
cable
OK
Workmanship
OK
LVDS cable NG
OK
Check the pins
of U104
NG
Change LVDS
cable
NG
Check Crystal:
Pin 25,26 of U104
NG
Change X101, C156,
C157
43
Acer
Acer –LCD-H243H
4.5 White screen
White Screen
Check LVDS
Cable Insert OK?
OK
Workmanship
NG
OK
Change LVDS
Cable
LVDS cable NG
NG
Check VLCD is
+5V?
OK
Check LVDS cable
NG
Check Panel
Enable of U104
NG
NG
U104 Fail
OK
Check Q101,
Q104, Q105, R105,
R108
NG
Q101, Q104, Q105,
R105, R108 fail
44
OK
Panel NG
Acer
Acer –LCD-H243H
05 Spare parts List
82424171A120R
OEM PART NO
792381300701R
792381400700R
792381500000R
792381500010R
453070801190R
453030300370R
453030300371R
453010100380R
453030300120R
430303002230R
430300400390R
430300802060R
714050021200R
714030022100R
714011206200R
714020018200R
501020228602R
502060201100R
501260210800R
502090103100R
631102240130R
DESCRIPTION
MOQ
PCBA,I/F BOARD(EMEA,W/SPK),LP2441-717 RO 50
PCBA,P/I BOARD,W/SPK,LP2441-717 ROHS
50
PCBA,POWER KYEPAD/B,LP2441 ROHS
50
PCBA,TOUCHPAD BOARD,LP2441 ROHS
50
PWRCORD 16A/250V BLK 6FT VDE/KTL H05VV-F 50
CABLE,DVI-D 18+1P MALE 6FT BLACK , ROHS
50
CABLE,DVI-D 18+1P MALE 6FT BLACK
50
CABLE,D-SUB 15P MALE 6FT BLACK/BLUE, ROH 50
CABLE AUDIO 1P 6FT BLACK/GREEN
50
CP03B06P0
HRN LVDS FFC 30P 166.5mm W/TASTE
50
HRN ASS'Y 4P 27MM UL1571#28
50
HRN ASSY, 2X4P TO 1X8P ,220mm,UL1571#28
50
ASSY BACK COVER,LP2441
50
ASSY BEZEL ,LP2441
50
ASSY STAND ,LP2441
50
ASSY BASE,LP2441
50
COVER,BACK,LP2441
50
HINGE,LP2441
50
STAND, LP2441
50
CHASSIS,W /HDMI, W/DVI,LP2441
50
LCP 24" M240HW01-V0-00(A)(AUO)ROHS
50
45
N/A
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Acer
Acer –LCD-H243H
06 Schematics and Layouts
6.1 PI BD Layout
46
Acer
Acer –LCD-H243H
6.2 Switching Mode Power Supply circuit
47
Acer
Acer –LCD-H243H
7.0 Assembly and Disassembly
The tool of Assembly and disassembly : 1) Electrostatic gloves 2) Electric screwdriver: the lengthe of screwdriver top is 6±0.5cm and
15±0.5cm ; the diameter of screwdriver top is Φ5*H5mm
48
Acer
Acer –LCD-H243H
Assembly and Disassembly (continue)
49
Acer
Acer –LCD-H243H
Assembly and Disassembly (continue)
50
Acer
Acer –LCD-H243H
Assembly and Disassembly (continue)
51
Acer
Acer –LCD-H243H
Assembly and Disassembly (continue)
52
Acer
Acer –LCD-H243H
Assembly and Disassembly (continue)
53
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