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 dorothymcgivern on February 24th, 2013
My Lcd Sreen Has A Multiple Of Lines All Over 3 Quarters Of It
my scree has muliple lines all over 3 quaters of it when i move
Current Answers
Answer #1: Posted by tintinb on March 5th, 2013 12:47 AM
tintinb
Member since:
October 26th, 2012 Points: 7,056,560
Member since:
October 26th, 2012 Points: 7,056,560
Multiple lines on your LCD screen indicate that there are dead pixels on the screen. Unfortunately, dead pixels on LCD screens cannot be repaired or replaced. There might be also a problem with the connector of the device. The only solution for this is to bring the device to a service repair center in your area. They have the tools and equipments to repair your device.
If you have more questions, please don't hesitate to ask here at HelpOwl. Experts here are always willing to answer your questions to the best of our knowledge and expertise.
Regards,
Tintin
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 3
... it gets wet, unplug the power cable
immediately and consult your monitor only in the parts list, may cause electric shock to the ...monitor should only be operated only at the correct power sources indicated on the label on the rear of these components read the parts list in their original position so as it checked by a qualified technician. Acer
Important Safety Notice
Acer -LCD-H243H...
H243 LCD Monitor Service Guide - Page 4
...;(V), (TYP.) (3)
Input interface
: Analog (D-sub 15 pin)
Digital Option (DVI-D 24 pin & HDMI 19Pin)
Power management
: Compatible with no visible cosmetic damage and should ... (Max)
Response time (Tr+Tf)
: 5ms (TYP. The monitors shall automatically to 90%
2.1.2 Storage note 1:
3 Acer
01 Product Specification
Acer -LCD-H243H
1. It's a green product and meets all ROHS standard.
H243 LCD Monitor Service Guide - Page 5
...Star
2.3 Electrostatic Discharge Requirements
The subject unit must be greater than 25,000 hours excluding the LCD panel. Acer
Temperature range Humidity range
2.1.3 Altitude note 2 Operating Storage
: -20°C... 90%
10000 ft (Ta=50, t=24h) 30000 ft (Ta=30, t=24h )
Acer -LCD-H243H
Note 1: Temperature and relative humidity range must withstand 8KV for contact discharge and 15KV for the...
H243 LCD Monitor Service Guide - Page 6
... panel spec).
3.2 White balance
The test standard conditions refer to Sec 3.1. 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 output, and 50mV for +3.3V...
H243 LCD Monitor Service Guide - Page 7
... MODES
864x525
35
66.66
30.24
1152x667
49.722
74.55
57.28
1568x909
68.700
75.000
84.520
Note: 1. Each frequency of Power Macintosh and Sun Ultra is a reference value
4.3 Timing requirements
The LCD monitor must be display) 2. Input / Output Signal Specifications
4.1 Video signals
Acer -LCD-H243H
Analog RGB signal: 0.7Vp-p (Input...
H243 LCD Monitor Service Guide - Page 8
... 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 00 04 72 74 00 01... in this section shall be performed under the following standard conditions unless otherwise noted. Acer
Acer -LCD-H243H
Vertical / Horizontal Sync polarity: positive or negative.
H243 LCD Monitor Service Guide - Page 9
...-displays, press [MENU] to Gray) Anti-Glare, 3H 4 556.0(W) ×323.2(H) ×16.65(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] [e Color ] [Input select]
A.
When "Empowering Technology OSD" displays, press [AUTO] to previous level...
H243 LCD Monitor Service Guide - Page 10
... their default values.
Position
---
--0～100 0～100
--- Depending on the left top. Position Focus
---
---
0～100 50 0～100 ---
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...
H243 LCD Monitor Service Guide - Page 11
... of firmware upgrade (Manufacturer of FW ICjPMC/SST/MX
6.2 Operational steps:
1. Acer
ACM Input
Language
Reset Resolution H. Others depend on timing. (2) Depend on timing & S/N
Acer -LCD-H243H
OFF --- ESD requirements: antistatic wrists, antistatic gloves (fingers), and connecting cable Name of ISP program: ISP_Tool_v3.7.5.exe Manufacture of Scaler is for Visa timing. Freq...
H243 LCD Monitor Service Guide - Page 12
... IC, which should be correspondent with that of ISP program card is connected to PC print port.
2. Software Checksum
FW software rooter
11 Acer
Acer -LCD-H243H
One port of PCBA FW IC.
Double click Figure One.
H243 LCD Monitor Service Guide - Page 13
Acer -LCD-H243H
Fourthly, select "AUTO", and keep its default value. There will be prompting if programming is OK.
12 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 ...
H243 LCD Monitor Service Guide - Page 40
... drawing (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 ...
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
H243 LCD Monitor Service Guide - Page 49
Acer
6.2 Switching Mode Power Supply circuit
Acer -LCD-H243H
47
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