Acer H243H Support Question
Acer H243H Support Question
Find answers below for this question about Acer H243H - Bmid - 24" LCD Monitor.Need a Acer H243H manual? We have 1 online manual for this item!
Question posted by bwheat on May 7th, 2010
How Can The Aspect Ratio Be Set For The H243h? I'd Like Circles To Be 'round' .
I like the screen 'real estate', hoever I wouldlike the circles to be round again instead of elliptical. I don't seem to be able to make a setting change to 'correct' this.
Current Answers
Related Acer H243H Manual Pages
H243 LCD Monitor Service Guide - Page 1
Acer
Acer -LCD-H243H
Service Manual
LCD Monitor Acer H243H
- 0 -
H243 LCD Monitor Service Guide - Page 2
... Spare Parts List 42 06 Schematics and Layouts 43 07 Assembly and Disassembly 46
Appendix : User's manual
Copyright Copyright 2006 InnoLux Tech. Corp. Corp. Acer H243H Service Manual
1
H243 LCD Monitor Service Guide - Page 3
... directly onto the class screen.
However, improper used or installation may cause damage to the monitor as well as it contains... carefully. Warning:
z This monitor should only be operated only at the correct power sources indicated on the label... manual.
2
z Always unplug the monitor before soldering. Acer
Important Safety Notice
Acer -LCD-H243H
1.
Service notes
z When replacing parts...
H243 LCD Monitor Service Guide - Page 4
...H243H... power button and display control buttons are on the LCD panel.
1.2 Accessories
AC Power Cord
: 1.8 ...ratio
: 1000׃1 (TYP.)
(1)
DCR
: 40000:1 (Max)
Response time (Tr+Tf)
: 5ms (TYP. The monitors...24 pin & HDMI 19Pin)
Power management
: Compatible with white connector)
2. ON/OFF)
(2)
2ms (Gray to display lower resolution video modes into1920x1080full screen...
H243 LCD Monitor Service Guide - Page 5
...The MTBF of this product shall be greater than 25,000 hours excluding the LCD panel. The LCD panel life which is 40,000 hours minimum at the condition of displaying an all...and Contrast settings.
3. Acer
Temperature range Humidity range
2.1.3 Altitude note 2 Operating Storage
: -20°C to 60°C : 5% to 90%
10000 ft (Ta=50, t=24h) 30000 ft (Ta=30, t=24h )
Acer -LCD-H243H
Note 1: ...
H243 LCD Monitor Service Guide - Page 6
...
9
W/2
5 Max. Acer
œ75% (DC output full loading and nominal AC input voltage range)
Acer -LCD-H243H
Ripple and Noise Total composite ripple and noise less than 800mV for +25V output, and less than 150mV for +5V ... x 1080 : 700 mV ± 2% : 30 minutes
Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall BL ≥ 240 cd/m2...
H243 LCD Monitor Service Guide - Page 7
...a reference value
4.3 Timing requirements
The LCD monitor must be display) 2. Non-interlace ....469
70.087
28.322
MAC MODES
864x525
35
66.66
30.24
1152x667
49.722
74.55
57.28
1568x909
68.700
75.000
...to F/W specification for more detail 3. Input / Output Signal Specifications
4.1 Video signals
Acer -LCD-H243H
Analog RGB signal: 0.7Vp-p (Input impedance = 75 Ohm)
Sync:
TTL level (...
H243 LCD Monitor Service Guide - Page 8
...) × 276.75
Display Colors:
16.7M colors (RGB 6-bit + Hi_FRC)
7 Acer
Acer -LCD-H243H
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 12 3 4 5 6 7 8 9 ABCD E F 0 00 FF FF FF FF FF FF...
H243 LCD Monitor Service Guide - Page 9
...(D) (TYP.)
Acer -LCD-H243H
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
MENU] [AUTO] ...change an adjustment value
B. When "Main OSD" displays, press [MENU] to previous level menu C. A. When "Main OSD" displays, press [AUTO] to return to perform function of Pixel Pixel Arrangement Brightness Contrast Ratio...
H243 LCD Monitor Service Guide - Page 10
... 3
OSD Timeout ---
---
10～120 10
Wide Mode Setting
DDC/CI
Full Aspect ON
Full ON
9 Acer
FACTORY MODE
●
Acer -LCD-H243H
Press [e], and then press
[POWER] for
entering factory mode.
5.4 OSD Structure
The On-Screen Display (OSD) shall be shown with all OSD controls set to use icon based menu through keypad OSD buttons...
H243 LCD Monitor Service Guide - Page 11
.... Notes: (1) Clock default 50 is Mstar)
6.1 Operational condition:
Equipment: PC, ISP card, signal cable and power cable. Others depend on timing. (2) Depend on timing & S/N
Acer -LCD-H243H
OFF --- English
--(2)
6. SOP of firmware upgrade (Manufacturer of FW ICjPMC/SST/MX
6.2 Operational steps:
1.
Acer
ACM Input
Language
Reset Resolution H. Connection: connect PC to PCBA...
H243 LCD Monitor Service Guide - Page 12
...", next select manufacturer model of FW IC, which should be correspondent with that of ISP program card is connected to PC print port.
2. Acer
Acer -LCD-H243H
One port of PCBA FW IC. Software Checksum
FW software rooter
11 FW IC Model
Secondlypdownload FW software: first select "READ", and then load FW...
H243 LCD Monitor Service Guide - Page 13
There will be prompting if programming is OK.
12 Acer -LCD-H243H
Fourthly, select "AUTO", and keep its default value. Acer
Thirdly, select "Connect" and enter ISP MODE as in the following Figure 3. Click "RUN" for beginning programming.
H243 LCD Monitor Service Guide - Page 14
Acer
Acer -LCD-H243H
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
OK
Open ISP program
OK
Choose manufacturer and model of FW IC
OK
LOAD FW software
OK
Click Connect ...
H243 LCD Monitor Service Guide - Page 40
... (All)
39 Acer 03 Exploded Diagram
3.1 H243H_SCREW_LIST
Acer -LCD-H243H
ITEM PN
Description
Q'T Y(P CS)
Fixed T(kg*cm)
Remark
1
509146306 SCREW,P,CROSS,W/WAS
200R
,M3*6,Zn-Cc
7
6.5Ô0.5
For NVBD/PWRBD/HDMI
2
509216608 110R
SCREW,F,CROSS,...
H243 LCD Monitor Service Guide - Page 42
Acer
Unstable power
04 Troubleshooting
4.1 No Power & LED Off
Acer -LCD-H243H
Check sampling Circuit
Check the R pin voltage of IC803 about 2.5V
yes
NG NG
Check F801, R808,R806
NG
Check the C pin voltage of IC803 if 3V
Change F801, R808,R806
NG
Change IC803
Check R832,IC801
Check pin6 of IC802
NG
voltage...
H243 LCD Monitor Service Guide - Page 44
Acer
Black Screen
4.2 Black screen
Acer -LCD-H243H
Check power supply:
NG
Pin 1, 2 of CN104
OK
Check power supply:
NG
For U104
OK
Check reset:
NG
pin 8 of U104
OK
Check Crystal
waveform
...
H243 LCD Monitor Service Guide - Page 45
Acer
Bad Screen
4.4 Bad Screen
Acer -LCD-H243H
Check LVDS
OK
cable
NG
Change LVDS
OK
cable
NG
Check Crystal:
OK
Pin 25,26 of U104
NG
Change X101, C156, C157
Workmanship
LVDS cable NG
Check the pins of U104
43
H243 LCD Monitor Service Guide - Page 47
Acer
Acer -LCD-H243H
05 Spare parts List
82424171A120R
OEM PART NO DESCRIPTION
MOQ
N/A
792381300701R PCBA,I/F BOARD(EMEA,W/SPK),LP2441-717 RO 50
1
792381400700R PCBA...
501020228602R COVER,BACK,LP2441
50
1
502060201100R HINGE,LP2441
50
1
501260210800R STAND, LP2441
50
1
502090103100R CHASSIS,W /HDMI, W/DVI,LP2441
50
1
631102240130R LCP 24" M240HW01-V0-00(A)(AUO)ROHS
50
1
45
H243 LCD Monitor Service Guide - Page 48
Acer
6.1 PI BD Layout
Acer -LCD-H243H
06 Schematics and Layouts
46
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