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A221HQ
Acer A221HQ LCD Monitor Manuals
Manuals and User Guides for Acer A221HQ LCD Monitor. We have
1
Acer A221HQ LCD Monitor manual available for free PDF download: Service Manual
Acer A221HQ Service Manual (89 pages)
Brand:
Acer
| Category:
Monitor
| Size: 19.21 MB
Table of Contents
Table of Contents
2
Important Safety Notice
3
Product Announcement
3
Qualified Repairability
3
General Requirements
4
Test Condition
4
Test Equipment
4
Product Specification
4
Interface Connectors
5
Power Connector and Cable
5
Analog Connector and Cable
5
DVI-D Digital Connector and Cable
5
Input Signals
6
Video Signal Amplitudes
6
Video Signal Termination Impedance
6
Synchronization (Sync) Signals
6
Preset Timing Chart
7
Color Temperature
7
General Requirements
7
Format and Timing
7
OSD Function
7
OSD Control Factory Default Values
7
Monitor Modes and Timing Capability
7
Flat Panel
8
Panel Timing and Interface
8
Video Stretching
8
DC - AC Inverter Requirements
8
Defects
9
Visual Inspection
9
Display Degradation
9
Light Leakage
9
Response Time
10
Brightness Uniformity
10
ACM (Auto Contrast Management)
10
Optical Characteristics
10
Brightness
11
Environmental Requirements
11
Temperature Ranges
11
Chromaticity
11
Function Menu
12
Key Definition
12
Icons Introduction
12
Item Page Status
12
OSD Menu
12
OSD Message
13
Acer Ecolor Management
13
Acer Logo
13
Volume Management OSD
13
Product Exploded Diagram
14
Packing Exploded Diagram
15
Assembly and Disassembly Procedures
16
Disassembly Procedures
20
Troubleshooting for Acer A211H/A221HQ(1A1D1H)
23
No Display on the Screen
23
Nothing Displays on the Screen
24
Checking the Back Light Unit
26
Abnormal Screen( for VGA)
27
Abnormal Screen (for DVI and the same for HDMI)
28
Abnormal OSD Display Adjust Problem
29
Abnormal Plug and Play Operation( for VGA)
30
Abnormal Plug and Play Operation (for DVI and the same for HDMI)
31
Checking the Interface Circuit of Sync Signal
32
Checking the Control Circuit of Horizontal Sync Pluse
32
Checking the Control Circuit of Vertical Sync Pluse
32
Checking the Resolution Change IC Movement
33
Checking the DC/DC Converter Circuit
34
Troubleshooting for P216H/ P226HQ(1A1D)
35
Abnormal Plug and Play Operation for VGA
43
Abnormal Plug and Play Operation for DVI
44
Troubleshooting for Acer A211H/A221HQ(1A)
48
Check the Backlight Unit
51
Power Board Troubleshooting
58
No Power
58
Hardware Configuration
60
Realtek F/W Configuration
60
How to Check Firmware Version?
61
Writing VGA/DVI Process
62
Writing EDID Procedure
62
Acer_Lcd_A211H/A221Hq Schematics and Layouts:
64
Acer_Lcd_A211H/A221Hq_Schematics_Power Board(1A1D1H/1A1D/1A/):
64
Acer_Lcd_A211H/A221Hq_Schematics_Function Key Board(1A1D1H/1A1D/1A)
65
Acer_Lcd_A211H/A221Hq_Schematics_Interface Board
66
Block Diagram
66
Acer_Lcd_A211H/A221Hq
67
Acer_Lcd_A211H/A221Hq(1A)_Schematics_Interface Board_Power
80
Acer_Lcd_A211H/A221Hq(1A)_Schematics_Interface Board_Vga&DDC
81
Acer_Lcd_A211H/A221Hq(1A)_Schematics_Interface Board_Scaler
82
Acer_Lcd_A211H/A221Hq_Layouts_Power Board(1A1D1H/1A1D/1A/1A1D1H+Od):
84
Acer_Lcd_A211H/A221Hq_Layouts
86
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